freebsd-dev/sys/security/mac_stub/mac_stub.c

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Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
/*-
* Copyright (c) 1999-2002, 2007 Robert N. M. Watson
* Copyright (c) 2001-2005 McAfee, Inc.
* Copyright (c) 2005-2006 SPARTA, Inc.
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
* All rights reserved.
*
* This software was developed by Robert Watson for the TrustedBSD Project.
*
* This software was developed for the FreeBSD Project in part by McAfee
* Research, the Security Research Division of McAfee, Inc. under
* DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
* CHATS research program.
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
*
* This software was enhanced by SPARTA ISSO under SPAWAR contract
* N66001-04-C-6019 ("SEFOS").
*
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Developed by the TrustedBSD Project.
*
* Stub module that implements a NOOP for most (if not all) MAC Framework
* policy entry points.
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/acl.h>
#include <sys/conf.h>
#include <sys/extattr.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
#include <sys/kernel.h>
#include <sys/ksem.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/sysent.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/pipe.h>
#include <sys/sx.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
#include <sys/sysctl.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
#include <fs/devfs/devfs.h>
#include <net/bpfdesc.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <netinet/in.h>
#include <netinet/in_pcb.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
#include <netinet/ip_var.h>
#include <vm/vm.h>
#include <security/mac/mac_policy.h>
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
SYSCTL_DECL(_security_mac);
SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0,
"TrustedBSD mac_stub policy controls");
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int stub_enabled = 1;
SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW,
&stub_enabled, 0, "Enforce mac_stub policy");
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
/*
* Policy module operations.
*/
static void
stub_destroy(struct mac_policy_conf *conf)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_init(struct mac_policy_conf *conf)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_syscall(struct thread *td, int call, void *arg)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
/*
* Label operations.
*/
static void
stub_init_label(struct label *label)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_init_label_waitcheck(struct label *label, int flag)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static void
stub_destroy_label(struct label *label)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_copy_label(struct label *src, struct label *dest)
{
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_externalize_label(struct label *label, char *element_name,
struct sbuf *sb, int *claimed)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_internalize_label(struct label *label, char *element_name,
char *element_data, int *claimed)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
/*
* Object-specific entry point imeplementations are sorted alphabetically by
* object type name and then by operation.
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
*/
static int
stub_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel,
struct ifnet *ifp, struct label *ifplabel)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static void
stub_bpfdesc_create(struct ucred *cred, struct bpf_d *d,
struct label *dlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel,
struct mbuf *m, struct label *mlabel)
{
}
static int
stub_cred_check_relabel(struct ucred *cred, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_cred_check_visible(struct ucred *cr1, struct ucred *cr2)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static void
stub_cred_relabel(struct ucred *cred, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_devfs_create_device(struct ucred *cred, struct mount *mp,
struct cdev *dev, struct devfs_dirent *de, struct label *delabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_devfs_create_directory(struct mount *mp, char *dirname,
int dirnamelen, struct devfs_dirent *de, struct label *delabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_devfs_create_symlink(struct ucred *cred, struct mount *mp,
struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
struct label *delabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_devfs_update(struct mount *mp, struct devfs_dirent *de,
struct label *delabel, struct vnode *vp, struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_devfs_vnode_associate(struct mount *mp, struct label *mplabel,
struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp,
struct label *ifplabel, struct label *newlabel)
{
return (0);
}
static int
stub_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static void
stub_ifnet_create(struct ifnet *ifp, struct label *ifplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_ifnet_relabel(struct ucred *cred, struct ifnet *ifp,
struct label *ifplabel, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static void
stub_inpcb_create(struct socket *so, struct label *solabel,
struct inpcb *inp, struct label *inplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_inpcb_sosetlabel(struct socket *so, struct label *solabel,
struct inpcb *inp, struct label *inplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q,
struct label *qlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q,
struct label *qlabel)
{
return (1);
}
static void
stub_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m,
struct label *mlabel)
{
}
static void
stub_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q,
struct label *qlabel)
{
}
static int
stub_kenv_check_dump(struct ucred *cred)
{
return (0);
}
static int
stub_kenv_check_get(struct ucred *cred, char *name)
{
return (0);
}
static int
stub_kenv_check_set(struct ucred *cred, char *name, char *value)
{
return (0);
}
static int
stub_kenv_check_unset(struct ucred *cred, char *name)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_kld_check_load(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
{
return (0);
}
static int
stub_kld_check_stat(struct ucred *cred)
{
return (0);
}
static int
stub_mount_check_stat(struct ucred *cred, struct mount *mp,
struct label *mplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static void
stub_mount_create(struct ucred *cred, struct mount *mp,
struct label *mplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_netatalk_aarp_send(struct ifnet *ifp, struct label *iflpabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_netinet_arp_send(struct ifnet *ifp, struct label *iflpabel,
struct mbuf *m, struct label *mlabel)
{
}
static void
stub_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel,
struct mbuf *msend, struct label *msendlabel)
{
}
static void
stub_netinet_firewall_send(struct mbuf *m, struct label *mlabel)
{
}
static void
stub_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag,
struct label *fraglabel)
{
}
static void
stub_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel,
struct mbuf *msend, struct label *msendlabel)
{
}
static void
stub_netinet_icmp_replyinplace(struct mbuf *m, struct label *mlabel)
{
}
static void
stub_netinet_igmp_send(struct ifnet *ifp, struct label *iflpabel,
struct mbuf *m, struct label *mlabel)
{
}
static void
stub_netinet_tcp_reply(struct mbuf *m, struct label *mlabel)
{
}
static void
stub_netinet6_nd6_send(struct ifnet *ifp, struct label *iflpabel,
struct mbuf *m, struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data)
{
return (0);
}
static int
stub_pipe_check_poll(struct ucred *cred, struct pipepair *pp,
struct label *pplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_pipe_check_read(struct ucred *cred, struct pipepair *pp,
struct label *pplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_pipe_check_relabel(struct ucred *cred, struct pipepair *pp,
struct label *pplabel, struct label *newlabel)
{
return (0);
}
static int
stub_pipe_check_stat(struct ucred *cred, struct pipepair *pp,
struct label *pplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_pipe_check_write(struct ucred *cred, struct pipepair *pp,
struct label *pplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static void
stub_pipe_create(struct ucred *cred, struct pipepair *pp,
struct label *pplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_pipe_relabel(struct ucred *cred, struct pipepair *pp,
struct label *pplabel, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_posixsem_check_getvalue(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_posixsem_check_open(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
{
return (0);
}
static int
stub_posixsem_check_post(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
{
return (0);
}
static int
stub_posixsem_check_unlink(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
{
return (0);
}
static int
stub_posixsem_check_wait(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
{
return (0);
}
static void
stub_posixsem_create(struct ucred *cred, struct ksem *ks,
struct label *kslabel)
{
}
Add a new file descriptor type for IPC shared memory objects and use it to implement shm_open(2) and shm_unlink(2) in the kernel: - Each shared memory file descriptor is associated with a swap-backed vm object which provides the backing store. Each descriptor starts off with a size of zero, but the size can be altered via ftruncate(2). The shared memory file descriptors also support fstat(2). read(2), write(2), ioctl(2), select(2), poll(2), and kevent(2) are not supported on shared memory file descriptors. - shm_open(2) and shm_unlink(2) are now implemented as system calls that manage shared memory file descriptors. The virtual namespace that maps pathnames to shared memory file descriptors is implemented as a hash table where the hash key is generated via the 32-bit Fowler/Noll/Vo hash of the pathname. - As an extension, the constant 'SHM_ANON' may be specified in place of the path argument to shm_open(2). In this case, an unnamed shared memory file descriptor will be created similar to the IPC_PRIVATE key for shmget(2). Note that the shared memory object can still be shared among processes by sharing the file descriptor via fork(2) or sendmsg(2), but it is unnamed. This effectively serves to implement the getmemfd() idea bandied about the lists several times over the years. - The backing store for shared memory file descriptors are garbage collected when they are not referenced by any open file descriptors or the shm_open(2) virtual namespace. Submitted by: dillon, peter (previous versions) Submitted by: rwatson (I based this on his version) Reviewed by: alc (suggested converting getmemfd() to shm_open())
2008-01-08 21:58:16 +00:00
static int
stub_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
struct label *shmlabel, int prot, int flags)
{
return (0);
}
static int
stub_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
struct label *shmlabel)
{
return (0);
}
static int
stub_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred,
struct shmfd *shmfd, struct label *shmlabel)
{
return (0);
}
static int
stub_posixshm_check_truncate(struct ucred *active_cred,
struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel)
{
return (0);
}
static int
stub_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd,
struct label *shmlabel)
{
return (0);
}
static void
stub_posixshm_create(struct ucred *cred, struct shmfd *shmfd,
struct label *shmlabel)
{
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_priv_check(struct ucred *cred, int priv)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static int
stub_priv_grant(struct ucred *cred, int priv)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (EPERM);
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
}
static void
stub_proc_associate_nfsd(struct ucred *cred)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_proc_check_debug(struct ucred *cred, struct proc *p)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_proc_check_sched(struct ucred *cred, struct proc *p)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai)
{
return (0);
}
static int
stub_proc_check_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia)
{
return (0);
}
static int
stub_proc_check_setauid(struct ucred *cred, uid_t auid)
{
return (0);
}
static int
stub_proc_check_setegid(struct ucred *cred, gid_t egid)
{
return (0);
}
static int
stub_proc_check_seteuid(struct ucred *cred, uid_t euid)
{
return (0);
}
static int
stub_proc_check_setgid(struct ucred *cred, gid_t gid)
{
return (0);
}
static int
stub_proc_check_setgroups(struct ucred *cred, int ngroups,
gid_t *gidset)
{
return (0);
}
static int
stub_proc_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid)
{
return (0);
}
static int
stub_proc_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid,
gid_t sgid)
{
return (0);
}
static int
stub_proc_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid,
uid_t suid)
{
return (0);
}
static int
stub_proc_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid)
{
return (0);
}
static int
stub_proc_check_setuid(struct ucred *cred, uid_t uid)
{
return (0);
}
static int
stub_proc_check_signal(struct ucred *cred, struct proc *p, int signum)
{
return (0);
}
static int
stub_proc_check_wait(struct ucred *cred, struct proc *p)
{
return (0);
}
static void
stub_proc_create_init(struct ucred *cred)
{
}
static void
stub_proc_create_swapper(struct ucred *cred)
{
}
static int
stub_socket_check_accept(struct ucred *cred, struct socket *so,
struct label *solabel)
{
return (0);
}
static int
stub_socket_check_bind(struct ucred *cred, struct socket *so,
struct label *solabel, struct sockaddr *sa)
{
return (0);
}
static int
stub_socket_check_connect(struct ucred *cred, struct socket *so,
struct label *solabel, struct sockaddr *sa)
{
return (0);
}
static int
stub_socket_check_create(struct ucred *cred, int domain, int type, int proto)
{
return (0);
}
static int
stub_socket_check_deliver(struct socket *so, struct label *solabel,
struct mbuf *m, struct label *mlabel)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_socket_check_listen(struct ucred *cred, struct socket *so,
struct label *solabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_socket_check_poll(struct ucred *cred, struct socket *so,
struct label *solabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_socket_check_receive(struct ucred *cred, struct socket *so,
struct label *solabel)
{
return (0);
}
static int
stub_socket_check_relabel(struct ucred *cred, struct socket *so,
struct label *solabel, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_socket_check_send(struct ucred *cred, struct socket *so,
struct label *solabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_socket_check_stat(struct ucred *cred, struct socket *so,
struct label *solabel)
{
return (0);
}
static int
stub_socket_check_visible(struct ucred *cred, struct socket *so,
struct label *solabel)
{
return (0);
}
static void
stub_socket_create(struct ucred *cred, struct socket *so,
struct label *solabel)
{
}
static void
stub_socket_create_mbuf(struct socket *so, struct label *solabel,
struct mbuf *m, struct label *mlabel)
{
}
static void
stub_socket_newconn(struct socket *oldso, struct label *oldsolabel,
struct socket *newso, struct label *newsolabel)
{
}
static void
stub_socket_relabel(struct ucred *cred, struct socket *so,
struct label *solabel, struct label *newlabel)
{
}
static void
stub_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel,
struct socket *so, struct label *sopeerlabel)
{
}
static void
stub_socketpeer_set_from_socket(struct socket *oldso,
struct label *oldsolabel, struct socket *newso,
struct label *newsopeerlabel)
{
}
static void
stub_syncache_create(struct label *label, struct inpcb *inp)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_syncache_create_mbuf(struct label *sc_label, struct mbuf *m,
struct label *mlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_system_check_acct(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_system_check_audit(struct ucred *cred, void *record, int length)
{
return (0);
}
static int
stub_system_check_auditctl(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
{
return (0);
}
static int
stub_system_check_auditon(struct ucred *cred, int cmd)
{
return (0);
}
static int
stub_system_check_reboot(struct ucred *cred, int how)
{
return (0);
}
static int
stub_system_check_swapoff(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
{
return (0);
}
static int
stub_system_check_swapon(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
{
return (0);
}
static int
stub_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
void *arg1, int arg2, struct sysctl_req *req)
{
return (0);
}
static int
stub_vnode_check_access(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int acc_mode)
{
return (0);
}
static int
stub_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel)
{
return (0);
}
static int
stub_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel)
{
return (0);
}
static int
stub_vnode_check_create(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
{
return (0);
}
static void
stub_sysvmsg_cleanup(struct label *msglabel)
{
}
static void
stub_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqlabel, struct msg *msgptr, struct label *msglabel)
{
}
static int
stub_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
struct label *msglabel, struct msqid_kernel *msqkptr,
struct label *msqklabel)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr,
struct label *msglabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr,
struct label *msglabel)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqklabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqklabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqklabel)
{
return (0);
}
static int
stub_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqklabel, int cmd)
{
return (0);
}
static void
stub_sysvmsq_cleanup(struct label *msqlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr,
struct label *msqlabel)
{
}
static int
stub_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
struct label *semaklabel, int cmd)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr,
struct label *semaklabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
struct label *semaklabel, size_t accesstype)
{
return (0);
}
static void
stub_sysvsem_cleanup(struct label *semalabel)
{
}
static void
stub_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr,
struct label *semalabel)
{
}
static int
stub_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int shmflg)
{
return (0);
}
static int
stub_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int cmd)
{
return (0);
}
static int
stub_sysvshm_check_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr,
struct label *shmseglabel)
{
return (0);
}
static int
stub_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int shmflg)
{
return (0);
}
static void
stub_sysvshm_cleanup(struct label *shmlabel)
{
}
static void
stub_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr,
struct label *shmalabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static void
stub_thread_userret(struct thread *td)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_vnode_associate_extattr(struct mount *mp, struct label *mplabel,
struct vnode *vp, struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static void
stub_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel,
struct vnode *vp, struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
}
static int
stub_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
struct label *vplabel, acl_type_t type)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int attrnamespace, const char *name)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_vnode_check_exec(struct ucred *cred, struct vnode *vp,
struct label *vplabel, struct image_params *imgp,
struct label *execlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
struct label *vplabel, acl_type_t type)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int attrnamespace, const char *name,
struct uio *uio)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_link(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct vnode *vp, struct label *vplabel,
struct componentname *cnp)
{
return (0);
}
static int
stub_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int attrnamespace)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct componentname *cnp)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_mmap(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int prot, int flags)
{
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
return (0);
}
static void
stub_vnode_check_mmap_downgrade(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int *prot)
{
}
static int
stub_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int prot)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_vnode_check_open(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int acc_mode)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
struct vnode *vp, struct label *vplabel)
{
return (0);
}
static int
stub_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
struct vnode *vp, struct label *vplabel)
{
return (0);
}
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
static int
stub_vnode_check_readdir(struct ucred *cred, struct vnode *vp,
struct label *dvplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_readlink(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_relabel(struct ucred *cred, struct vnode *vp,
struct label *vplabel, struct label *newlabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct vnode *vp, struct label *vplabel,
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
struct componentname *cnp)
{
return (0);
}
static int
stub_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct vnode *vp, struct label *vplabel,
int samedir, struct componentname *cnp)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
struct label *vplabel, acl_type_t type, struct acl *acl)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
struct label *vplabel, int attrnamespace, const char *name,
struct uio *uio)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
struct label *vplabel, u_long flags)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
struct label *vplabel, mode_t mode)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
struct label *vplabel, uid_t uid, gid_t gid)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
struct label *vplabel, struct timespec atime, struct timespec mtime)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
struct vnode *vp, struct label *vplabel)
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
{
return (0);
}
static int
stub_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
struct label *dvplabel, struct vnode *vp, struct label *vplabel,
struct componentname *cnp)
{
return (0);
}
static int
stub_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
struct vnode *vp, struct label *vplabel)
{
return (0);
}
static int
stub_vnode_create_extattr(struct ucred *cred, struct mount *mp,
struct label *mntlabel, struct vnode *dvp, struct label *dvplabel,
struct vnode *vp, struct label *vplabel, struct componentname *cnp)
{
return (0);
}
static void
stub_vnode_execve_transition(struct ucred *old, struct ucred *new,
struct vnode *vp, struct label *vplabel, struct label *interpvplabel,
struct image_params *imgp, struct label *execlabel)
{
}
static int
stub_vnode_execve_will_transition(struct ucred *old, struct vnode *vp,
struct label *vplabel, struct label *interpvplabel,
struct image_params *imgp, struct label *execlabel)
{
return (0);
}
static void
stub_vnode_relabel(struct ucred *cred, struct vnode *vp,
struct label *vplabel, struct label *label)
{
}
static int
stub_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp,
struct label *vplabel, struct label *intlabel)
{
return (0);
}
/*
* Register functions with MAC Framework policy entry points.
*/
static struct mac_policy_ops stub_ops =
{
.mpo_destroy = stub_destroy,
.mpo_init = stub_init,
.mpo_syscall = stub_syscall,
.mpo_bpfdesc_check_receive = stub_bpfdesc_check_receive,
.mpo_bpfdesc_create = stub_bpfdesc_create,
.mpo_bpfdesc_create_mbuf = stub_bpfdesc_create_mbuf,
.mpo_bpfdesc_destroy_label = stub_destroy_label,
.mpo_bpfdesc_init_label = stub_init_label,
.mpo_cred_check_relabel = stub_cred_check_relabel,
.mpo_cred_check_visible = stub_cred_check_visible,
.mpo_cred_copy_label = stub_copy_label,
.mpo_cred_destroy_label = stub_destroy_label,
.mpo_cred_externalize_label = stub_externalize_label,
.mpo_cred_init_label = stub_init_label,
.mpo_cred_internalize_label = stub_internalize_label,
.mpo_cred_relabel= stub_cred_relabel,
.mpo_devfs_create_device = stub_devfs_create_device,
.mpo_devfs_create_directory = stub_devfs_create_directory,
.mpo_devfs_create_symlink = stub_devfs_create_symlink,
.mpo_devfs_destroy_label = stub_destroy_label,
.mpo_devfs_init_label = stub_init_label,
.mpo_devfs_update = stub_devfs_update,
.mpo_devfs_vnode_associate = stub_devfs_vnode_associate,
.mpo_ifnet_check_relabel = stub_ifnet_check_relabel,
.mpo_ifnet_check_transmit = stub_ifnet_check_transmit,
.mpo_ifnet_copy_label = stub_copy_label,
.mpo_ifnet_create = stub_ifnet_create,
.mpo_ifnet_create_mbuf = stub_ifnet_create_mbuf,
.mpo_ifnet_destroy_label = stub_destroy_label,
.mpo_ifnet_externalize_label = stub_externalize_label,
.mpo_ifnet_init_label = stub_init_label,
.mpo_ifnet_internalize_label = stub_internalize_label,
.mpo_ifnet_relabel = stub_ifnet_relabel,
.mpo_inpcb_check_deliver = stub_inpcb_check_deliver,
.mpo_inpcb_create = stub_inpcb_create,
.mpo_inpcb_create_mbuf = stub_inpcb_create_mbuf,
.mpo_inpcb_destroy_label = stub_destroy_label,
.mpo_inpcb_init_label = stub_init_label_waitcheck,
.mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel,
.mpo_ipq_create = stub_ipq_create,
.mpo_ipq_destroy_label = stub_destroy_label,
.mpo_ipq_init_label = stub_init_label_waitcheck,
.mpo_ipq_match = stub_ipq_match,
.mpo_ipq_update = stub_ipq_update,
.mpo_ipq_reassemble = stub_ipq_reassemble,
.mpo_kenv_check_dump = stub_kenv_check_dump,
.mpo_kenv_check_get = stub_kenv_check_get,
.mpo_kenv_check_set = stub_kenv_check_set,
.mpo_kenv_check_unset = stub_kenv_check_unset,
.mpo_kld_check_load = stub_kld_check_load,
.mpo_kld_check_stat = stub_kld_check_stat,
.mpo_mbuf_copy_label = stub_copy_label,
.mpo_mbuf_destroy_label = stub_destroy_label,
.mpo_mbuf_init_label = stub_init_label_waitcheck,
.mpo_mount_check_stat = stub_mount_check_stat,
.mpo_mount_create = stub_mount_create,
.mpo_mount_destroy_label = stub_destroy_label,
.mpo_mount_init_label = stub_init_label,
.mpo_netatalk_aarp_send = stub_netatalk_aarp_send,
.mpo_netinet_arp_send = stub_netinet_arp_send,
.mpo_netinet_firewall_reply = stub_netinet_firewall_reply,
.mpo_netinet_firewall_send = stub_netinet_firewall_send,
.mpo_netinet_fragment = stub_netinet_fragment,
.mpo_netinet_icmp_reply = stub_netinet_icmp_reply,
.mpo_netinet_icmp_replyinplace = stub_netinet_icmp_replyinplace,
.mpo_netinet_tcp_reply = stub_netinet_tcp_reply,
.mpo_netinet_igmp_send = stub_netinet_igmp_send,
.mpo_netinet6_nd6_send = stub_netinet6_nd6_send,
.mpo_pipe_check_ioctl = stub_pipe_check_ioctl,
.mpo_pipe_check_poll = stub_pipe_check_poll,
.mpo_pipe_check_read = stub_pipe_check_read,
.mpo_pipe_check_relabel = stub_pipe_check_relabel,
.mpo_pipe_check_stat = stub_pipe_check_stat,
.mpo_pipe_check_write = stub_pipe_check_write,
.mpo_pipe_copy_label = stub_copy_label,
.mpo_pipe_create = stub_pipe_create,
.mpo_pipe_destroy_label = stub_destroy_label,
.mpo_pipe_externalize_label = stub_externalize_label,
.mpo_pipe_init_label = stub_init_label,
.mpo_pipe_internalize_label = stub_internalize_label,
.mpo_pipe_relabel = stub_pipe_relabel,
.mpo_posixsem_check_getvalue = stub_posixsem_check_getvalue,
.mpo_posixsem_check_open = stub_posixsem_check_open,
.mpo_posixsem_check_post = stub_posixsem_check_post,
.mpo_posixsem_check_unlink = stub_posixsem_check_unlink,
.mpo_posixsem_check_wait = stub_posixsem_check_wait,
.mpo_posixsem_create = stub_posixsem_create,
.mpo_posixsem_destroy_label = stub_destroy_label,
.mpo_posixsem_init_label = stub_init_label,
Add a new file descriptor type for IPC shared memory objects and use it to implement shm_open(2) and shm_unlink(2) in the kernel: - Each shared memory file descriptor is associated with a swap-backed vm object which provides the backing store. Each descriptor starts off with a size of zero, but the size can be altered via ftruncate(2). The shared memory file descriptors also support fstat(2). read(2), write(2), ioctl(2), select(2), poll(2), and kevent(2) are not supported on shared memory file descriptors. - shm_open(2) and shm_unlink(2) are now implemented as system calls that manage shared memory file descriptors. The virtual namespace that maps pathnames to shared memory file descriptors is implemented as a hash table where the hash key is generated via the 32-bit Fowler/Noll/Vo hash of the pathname. - As an extension, the constant 'SHM_ANON' may be specified in place of the path argument to shm_open(2). In this case, an unnamed shared memory file descriptor will be created similar to the IPC_PRIVATE key for shmget(2). Note that the shared memory object can still be shared among processes by sharing the file descriptor via fork(2) or sendmsg(2), but it is unnamed. This effectively serves to implement the getmemfd() idea bandied about the lists several times over the years. - The backing store for shared memory file descriptors are garbage collected when they are not referenced by any open file descriptors or the shm_open(2) virtual namespace. Submitted by: dillon, peter (previous versions) Submitted by: rwatson (I based this on his version) Reviewed by: alc (suggested converting getmemfd() to shm_open())
2008-01-08 21:58:16 +00:00
.mpo_posixshm_check_mmap = stub_posixshm_check_mmap,
.mpo_posixshm_check_open = stub_posixshm_check_open,
.mpo_posixshm_check_stat = stub_posixshm_check_stat,
.mpo_posixshm_check_truncate = stub_posixshm_check_truncate,
.mpo_posixshm_check_unlink = stub_posixshm_check_unlink,
.mpo_posixshm_create = stub_posixshm_create,
.mpo_posixshm_destroy_label = stub_destroy_label,
.mpo_posixshm_init_label = stub_init_label,
.mpo_priv_check = stub_priv_check,
.mpo_priv_grant = stub_priv_grant,
.mpo_proc_associate_nfsd = stub_proc_associate_nfsd,
.mpo_proc_check_debug = stub_proc_check_debug,
.mpo_proc_check_sched = stub_proc_check_sched,
.mpo_proc_check_setaudit = stub_proc_check_setaudit,
.mpo_proc_check_setaudit_addr = stub_proc_check_setaudit_addr,
.mpo_proc_check_setauid = stub_proc_check_setauid,
.mpo_proc_check_setegid = stub_proc_check_setegid,
.mpo_proc_check_seteuid = stub_proc_check_seteuid,
.mpo_proc_check_setgid = stub_proc_check_setgid,
.mpo_proc_check_setgroups = stub_proc_check_setgroups,
.mpo_proc_check_setregid = stub_proc_check_setregid,
.mpo_proc_check_setresgid = stub_proc_check_setresgid,
.mpo_proc_check_setresuid = stub_proc_check_setresuid,
.mpo_proc_check_setreuid = stub_proc_check_setreuid,
.mpo_proc_check_setuid = stub_proc_check_setuid,
.mpo_proc_check_signal = stub_proc_check_signal,
.mpo_proc_check_wait = stub_proc_check_wait,
.mpo_proc_create_init = stub_proc_create_init,
.mpo_proc_create_swapper = stub_proc_create_swapper,
.mpo_socket_check_accept = stub_socket_check_accept,
.mpo_socket_check_bind = stub_socket_check_bind,
.mpo_socket_check_connect = stub_socket_check_connect,
.mpo_socket_check_create = stub_socket_check_create,
.mpo_socket_check_deliver = stub_socket_check_deliver,
.mpo_socket_check_listen = stub_socket_check_listen,
.mpo_socket_check_poll = stub_socket_check_poll,
.mpo_socket_check_receive = stub_socket_check_receive,
.mpo_socket_check_relabel = stub_socket_check_relabel,
.mpo_socket_check_send = stub_socket_check_send,
.mpo_socket_check_stat = stub_socket_check_stat,
.mpo_socket_check_visible = stub_socket_check_visible,
.mpo_socket_copy_label = stub_copy_label,
.mpo_socket_create = stub_socket_create,
.mpo_socket_create_mbuf = stub_socket_create_mbuf,
.mpo_socket_destroy_label = stub_destroy_label,
.mpo_socket_externalize_label = stub_externalize_label,
.mpo_socket_init_label = stub_init_label_waitcheck,
.mpo_socket_internalize_label = stub_internalize_label,
.mpo_socket_newconn = stub_socket_newconn,
.mpo_socket_relabel = stub_socket_relabel,
.mpo_socketpeer_destroy_label = stub_destroy_label,
.mpo_socketpeer_externalize_label = stub_externalize_label,
.mpo_socketpeer_init_label = stub_init_label_waitcheck,
.mpo_socketpeer_set_from_mbuf = stub_socketpeer_set_from_mbuf,
.mpo_socketpeer_set_from_socket = stub_socketpeer_set_from_socket,
.mpo_syncache_init_label = stub_init_label_waitcheck,
.mpo_syncache_destroy_label = stub_destroy_label,
.mpo_syncache_create = stub_syncache_create,
.mpo_syncache_create_mbuf= stub_syncache_create_mbuf,
.mpo_sysvmsg_cleanup = stub_sysvmsg_cleanup,
.mpo_sysvmsg_create = stub_sysvmsg_create,
.mpo_sysvmsg_destroy_label = stub_destroy_label,
.mpo_sysvmsg_init_label = stub_init_label,
.mpo_sysvmsq_check_msgmsq = stub_sysvmsq_check_msgmsq,
.mpo_sysvmsq_check_msgrcv = stub_sysvmsq_check_msgrcv,
.mpo_sysvmsq_check_msgrmid = stub_sysvmsq_check_msgrmid,
.mpo_sysvmsq_check_msqget = stub_sysvmsq_check_msqget,
.mpo_sysvmsq_check_msqsnd = stub_sysvmsq_check_msqsnd,
.mpo_sysvmsq_check_msqrcv = stub_sysvmsq_check_msqrcv,
.mpo_sysvmsq_check_msqctl = stub_sysvmsq_check_msqctl,
.mpo_sysvmsq_cleanup = stub_sysvmsq_cleanup,
.mpo_sysvmsq_create = stub_sysvmsq_create,
.mpo_sysvmsq_destroy_label = stub_destroy_label,
.mpo_sysvmsq_init_label = stub_init_label,
.mpo_sysvsem_check_semctl = stub_sysvsem_check_semctl,
.mpo_sysvsem_check_semget = stub_sysvsem_check_semget,
.mpo_sysvsem_check_semop = stub_sysvsem_check_semop,
.mpo_sysvsem_cleanup = stub_sysvsem_cleanup,
.mpo_sysvsem_create = stub_sysvsem_create,
.mpo_sysvsem_destroy_label = stub_destroy_label,
.mpo_sysvsem_init_label = stub_init_label,
.mpo_sysvshm_check_shmat = stub_sysvshm_check_shmat,
.mpo_sysvshm_check_shmctl = stub_sysvshm_check_shmctl,
.mpo_sysvshm_check_shmdt = stub_sysvshm_check_shmdt,
.mpo_sysvshm_check_shmget = stub_sysvshm_check_shmget,
.mpo_sysvshm_cleanup = stub_sysvshm_cleanup,
.mpo_sysvshm_create = stub_sysvshm_create,
.mpo_sysvshm_destroy_label = stub_destroy_label,
.mpo_sysvshm_init_label = stub_init_label,
.mpo_system_check_acct = stub_system_check_acct,
.mpo_system_check_audit = stub_system_check_audit,
.mpo_system_check_auditctl = stub_system_check_auditctl,
.mpo_system_check_auditon = stub_system_check_auditon,
.mpo_system_check_reboot = stub_system_check_reboot,
.mpo_system_check_swapoff = stub_system_check_swapoff,
.mpo_system_check_swapon = stub_system_check_swapon,
.mpo_system_check_sysctl = stub_system_check_sysctl,
.mpo_thread_userret = stub_thread_userret,
.mpo_vnode_associate_extattr = stub_vnode_associate_extattr,
.mpo_vnode_associate_singlelabel = stub_vnode_associate_singlelabel,
.mpo_vnode_check_access = stub_vnode_check_access,
.mpo_vnode_check_chdir = stub_vnode_check_chdir,
.mpo_vnode_check_chroot = stub_vnode_check_chroot,
.mpo_vnode_check_create = stub_vnode_check_create,
.mpo_vnode_check_deleteacl = stub_vnode_check_deleteacl,
.mpo_vnode_check_deleteextattr = stub_vnode_check_deleteextattr,
.mpo_vnode_check_exec = stub_vnode_check_exec,
.mpo_vnode_check_getacl = stub_vnode_check_getacl,
.mpo_vnode_check_getextattr = stub_vnode_check_getextattr,
.mpo_vnode_check_link = stub_vnode_check_link,
.mpo_vnode_check_listextattr = stub_vnode_check_listextattr,
.mpo_vnode_check_lookup = stub_vnode_check_lookup,
.mpo_vnode_check_mmap = stub_vnode_check_mmap,
.mpo_vnode_check_mmap_downgrade = stub_vnode_check_mmap_downgrade,
.mpo_vnode_check_mprotect = stub_vnode_check_mprotect,
.mpo_vnode_check_open = stub_vnode_check_open,
.mpo_vnode_check_poll = stub_vnode_check_poll,
.mpo_vnode_check_read = stub_vnode_check_read,
.mpo_vnode_check_readdir = stub_vnode_check_readdir,
.mpo_vnode_check_readlink = stub_vnode_check_readlink,
.mpo_vnode_check_relabel = stub_vnode_check_relabel,
.mpo_vnode_check_rename_from = stub_vnode_check_rename_from,
.mpo_vnode_check_rename_to = stub_vnode_check_rename_to,
.mpo_vnode_check_revoke = stub_vnode_check_revoke,
.mpo_vnode_check_setacl = stub_vnode_check_setacl,
.mpo_vnode_check_setextattr = stub_vnode_check_setextattr,
.mpo_vnode_check_setflags = stub_vnode_check_setflags,
.mpo_vnode_check_setmode = stub_vnode_check_setmode,
.mpo_vnode_check_setowner = stub_vnode_check_setowner,
.mpo_vnode_check_setutimes = stub_vnode_check_setutimes,
.mpo_vnode_check_stat = stub_vnode_check_stat,
.mpo_vnode_check_unlink = stub_vnode_check_unlink,
.mpo_vnode_check_write = stub_vnode_check_write,
.mpo_vnode_copy_label = stub_copy_label,
.mpo_vnode_create_extattr = stub_vnode_create_extattr,
.mpo_vnode_destroy_label = stub_destroy_label,
.mpo_vnode_execve_transition = stub_vnode_execve_transition,
.mpo_vnode_execve_will_transition = stub_vnode_execve_will_transition,
.mpo_vnode_externalize_label = stub_externalize_label,
.mpo_vnode_init_label = stub_init_label,
.mpo_vnode_internalize_label = stub_internalize_label,
.mpo_vnode_relabel = stub_vnode_relabel,
.mpo_vnode_setlabel_extattr = stub_vnode_setlabel_extattr,
Introduce support for Mandatory Access Control and extensible kernel access control. Provide implementations of some sample operating system security policy extensions. These are not yet hooked up to the build as other infrastructure is still being committed. Most of these work fairly well and are in daily use in our development and (limited) production environments. Some are not yet in their final form, and a number of the labeled policies waste a lot of kernel memory and will be fixed over the next month or so to be more conservative. They do give good examples of the flexibility of the MAC framework for implementing a variety of security policies. mac_biba: Implementation of fixed-label Biba integrity policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned integrity levels, and information flow is controlled based on a read-up, write-down policy. Currently, purely hierarchal. mac_bsdextended: Implementation of a "file system firewall", which allows the administrator to specify a series of rules limiting access by users and groups to objects owned by other users and groups. This policy is unlabeled, relying on existing system security labeling (file permissions/ownership, process credentials). mac_ifoff: Secure interface silencing. Special-purpose module to limit inappropriate out-going network traffic for silent monitoring scenarios. Prevents the various network stacks from generating any output despite an interface being live for reception. mac_mls: Implementation of fixed-label Multi-Level Security confidentiality policy, similar to those found in a number of commercial trusted operating systems. All subjects and objects are assigned confidentiality levels, and information flow is controlled based on a write-up, read-down policy. Currently, purely hiearchal, although non-hierarchal support is in the works. mac_none: Policy module implementing all MAC policy entry points with empty stubs. A good place to start if you want all the prototypes types in for you, and don't mind a bit of pruning. Can be loaded, but has no access control impact. Useful also for performance measurements. mac_seeotheruids: Policy module implementing a security service similar to security.bsd.seeotheruids, only a slightly more detailed policy involving exceptions for members of specific groups, etc. This policy is unlabeled, relying on existing system security labeling (process credentials). mac_test: Policy module implementing basic sanity tests for label handling. Attempts to ensure that labels are not freed multiple times, etc, etc. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-07-31 18:07:45 +00:00
};
MAC_POLICY_SET(&stub_ops, mac_stub, "TrustedBSD MAC/Stub",
MPC_LOADTIME_FLAG_UNLOADOK, NULL);