512 lines
18 KiB
C
512 lines
18 KiB
C
/*-
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* Copyright (c) 2006 nCircle Network Security, Inc.
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* All rights reserved.
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*
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* This software was developed by Robert N. M. Watson for the TrustedBSD
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* Project under contract to nCircle Network Security, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
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* INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Privilege checking interface for BSD kernel.
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*/
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#ifndef _SYS_PRIV_H_
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#define _SYS_PRIV_H_
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/*
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* Privilege list, sorted loosely by kernel subsystem.
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*
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* Think carefully before adding or reusing one of these privileges -- are
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* there existing instances referring to the same privilege? Third party
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* vendors may request the assignment of privileges to be used in loadable
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* modules. Particular numeric privilege assignments are part of the
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* loadable kernel module ABI, and should not be changed across minor
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* releases.
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*
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* When adding a new privilege, remember to determine if it's appropriate for
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* use in jail, and update the privilege switch in kern_jail.c as necessary.
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*/
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/*
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* Track beginning of privilege list.
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*/
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#define _PRIV_LOWEST 1
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/*
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* The remaining privileges typically correspond to one or a small
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* number of specific privilege checks, and have (relatively) precise
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* meanings. They are loosely sorted into a set of base system
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* privileges, such as the ability to reboot, and then loosely by
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* subsystem, indicated by a subsystem name.
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*/
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#define _PRIV_ROOT 1 /* Removed. */
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#define PRIV_ACCT 2 /* Manage process accounting. */
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#define PRIV_MAXFILES 3 /* Exceed system open files limit. */
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#define PRIV_MAXPROC 4 /* Exceed system processes limit. */
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#define PRIV_KTRACE 5 /* Set/clear KTRFAC_ROOT on ktrace. */
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#define PRIV_SETDUMPER 6 /* Configure dump device. */
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#define PRIV_REBOOT 8 /* Can reboot system. */
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#define PRIV_SWAPON 9 /* Can swapon(). */
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#define PRIV_SWAPOFF 10 /* Can swapoff(). */
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#define PRIV_MSGBUF 11 /* Can read kernel message buffer. */
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#define PRIV_IO 12 /* Can perform low-level I/O. */
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#define PRIV_KEYBOARD 13 /* Reprogram keyboard. */
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#define PRIV_DRIVER 14 /* Low-level driver privilege. */
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#define PRIV_ADJTIME 15 /* Set time adjustment. */
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#define PRIV_NTP_ADJTIME 16 /* Set NTP time adjustment. */
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#define PRIV_CLOCK_SETTIME 17 /* Can call clock_settime. */
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#define PRIV_SETTIMEOFDAY 18 /* Can call settimeofday. */
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#define _PRIV_SETHOSTID 19 /* Removed. */
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#define _PRIV_SETDOMAINNAME 20 /* Removed. */
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/*
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* Audit subsystem privileges.
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*/
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#define PRIV_AUDIT_CONTROL 40 /* Can configure audit. */
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#define PRIV_AUDIT_FAILSTOP 41 /* Can run during audit fail stop. */
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#define PRIV_AUDIT_GETAUDIT 42 /* Can get proc audit properties. */
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#define PRIV_AUDIT_SETAUDIT 43 /* Can set proc audit properties. */
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#define PRIV_AUDIT_SUBMIT 44 /* Can submit an audit record. */
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/*
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* Credential management privileges.
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*/
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#define PRIV_CRED_SETUID 50 /* setuid. */
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#define PRIV_CRED_SETEUID 51 /* seteuid to !ruid and !svuid. */
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#define PRIV_CRED_SETGID 52 /* setgid. */
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#define PRIV_CRED_SETEGID 53 /* setgid to !rgid and !svgid. */
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#define PRIV_CRED_SETGROUPS 54 /* Set process additional groups. */
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#define PRIV_CRED_SETREUID 55 /* setreuid. */
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#define PRIV_CRED_SETREGID 56 /* setregid. */
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#define PRIV_CRED_SETRESUID 57 /* setresuid. */
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#define PRIV_CRED_SETRESGID 58 /* setresgid. */
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#define PRIV_SEEOTHERGIDS 59 /* Exempt bsd.seeothergids. */
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#define PRIV_SEEOTHERUIDS 60 /* Exempt bsd.seeotheruids. */
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/*
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* Debugging privileges.
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*/
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#define PRIV_DEBUG_DIFFCRED 80 /* Exempt debugging other users. */
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#define PRIV_DEBUG_SUGID 81 /* Exempt debugging setuid proc. */
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#define PRIV_DEBUG_UNPRIV 82 /* Exempt unprivileged debug limit. */
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/*
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* Dtrace privileges.
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*/
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#define PRIV_DTRACE_KERNEL 90 /* Allow use of DTrace on the kernel. */
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#define PRIV_DTRACE_PROC 91 /* Allow attaching DTrace to process. */
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#define PRIV_DTRACE_USER 92 /* Process may submit DTrace events. */
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/*
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* Firmware privilegs.
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*/
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#define PRIV_FIRMWARE_LOAD 100 /* Can load firmware. */
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/*
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* Jail privileges.
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*/
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#define PRIV_JAIL_ATTACH 110 /* Attach to a jail. */
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#define PRIV_JAIL_SET 111 /* Set jail parameters. */
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#define PRIV_JAIL_REMOVE 112 /* Remove a jail. */
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/*
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* Kernel environment priveleges.
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*/
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#define PRIV_KENV_SET 120 /* Set kernel env. variables. */
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#define PRIV_KENV_UNSET 121 /* Unset kernel env. variables. */
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/*
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* Loadable kernel module privileges.
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*/
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#define PRIV_KLD_LOAD 130 /* Load a kernel module. */
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#define PRIV_KLD_UNLOAD 131 /* Unload a kernel module. */
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/*
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* Privileges associated with the MAC Framework and specific MAC policy
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* modules.
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*/
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#define PRIV_MAC_PARTITION 140 /* Privilege in mac_partition policy. */
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#define PRIV_MAC_PRIVS 141 /* Privilege in the mac_privs policy. */
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/*
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* Process-related privileges.
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*/
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#define PRIV_PROC_LIMIT 160 /* Exceed user process limit. */
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#define PRIV_PROC_SETLOGIN 161 /* Can call setlogin. */
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#define PRIV_PROC_SETRLIMIT 162 /* Can raise resources limits. */
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/* System V IPC privileges.
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*/
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#define PRIV_IPC_READ 170 /* Can override IPC read perm. */
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#define PRIV_IPC_WRITE 171 /* Can override IPC write perm. */
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#define PRIV_IPC_ADMIN 172 /* Can override IPC owner-only perm. */
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#define PRIV_IPC_MSGSIZE 173 /* Exempt IPC message queue limit. */
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/*
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* POSIX message queue privileges.
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*/
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#define PRIV_MQ_ADMIN 180 /* Can override msgq owner-only perm. */
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/*
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* Performance monitoring counter privileges.
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*/
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#define PRIV_PMC_MANAGE 190 /* Can administer PMC. */
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#define PRIV_PMC_SYSTEM 191 /* Can allocate a system-wide PMC. */
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/*
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* Scheduling privileges.
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*/
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#define PRIV_SCHED_DIFFCRED 200 /* Exempt scheduling other users. */
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#define PRIV_SCHED_SETPRIORITY 201 /* Can set lower nice value for proc. */
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#define PRIV_SCHED_RTPRIO 202 /* Can set real time scheduling. */
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#define PRIV_SCHED_SETPOLICY 203 /* Can set scheduler policy. */
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#define PRIV_SCHED_SET 204 /* Can set thread scheduler. */
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#define PRIV_SCHED_SETPARAM 205 /* Can set thread scheduler params. */
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#define PRIV_SCHED_CPUSET 206 /* Can manipulate cpusets. */
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#define PRIV_SCHED_CPUSET_INTR 207 /* Can adjust IRQ to CPU binding. */
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/*
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* POSIX semaphore privileges.
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*/
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#define PRIV_SEM_WRITE 220 /* Can override sem write perm. */
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/*
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* Signal privileges.
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*/
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#define PRIV_SIGNAL_DIFFCRED 230 /* Exempt signalling other users. */
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#define PRIV_SIGNAL_SUGID 231 /* Non-conserv signal setuid proc. */
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/*
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* Sysctl privileges.
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*/
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#define PRIV_SYSCTL_DEBUG 240 /* Can invoke sysctl.debug. */
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#define PRIV_SYSCTL_WRITE 241 /* Can write sysctls. */
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#define PRIV_SYSCTL_WRITEJAIL 242 /* Can write sysctls, jail permitted. */
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/*
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* TTY privileges.
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*/
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#define PRIV_TTY_CONSOLE 250 /* Set console to tty. */
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#define PRIV_TTY_DRAINWAIT 251 /* Set tty drain wait time. */
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#define PRIV_TTY_DTRWAIT 252 /* Set DTR wait on tty. */
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#define PRIV_TTY_EXCLUSIVE 253 /* Override tty exclusive flag. */
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#define _PRIV_TTY_PRISON 254 /* Removed. */
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#define PRIV_TTY_STI 255 /* Simulate input on another tty. */
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#define PRIV_TTY_SETA 256 /* Set tty termios structure. */
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/*
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* UFS-specific privileges.
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*/
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#define PRIV_UFS_EXTATTRCTL 270 /* Can configure EAs on UFS1. */
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#define PRIV_UFS_QUOTAOFF 271 /* quotaoff(). */
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#define PRIV_UFS_QUOTAON 272 /* quotaon(). */
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#define PRIV_UFS_SETUSE 273 /* setuse(). */
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/*
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* ZFS-specific privileges.
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*/
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#define PRIV_ZFS_POOL_CONFIG 280 /* Can configure ZFS pools. */
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#define PRIV_ZFS_INJECT 281 /* Can inject faults in the ZFS fault
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injection framework. */
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#define PRIV_ZFS_JAIL 282 /* Can attach/detach ZFS file systems
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to/from jails. */
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/*
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* NFS-specific privileges.
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*/
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#define PRIV_NFS_DAEMON 290 /* Can become the NFS daemon. */
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#define PRIV_NFS_LOCKD 291 /* Can become NFS lock daemon. */
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/*
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* VFS privileges.
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*/
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#define PRIV_VFS_READ 310 /* Override vnode DAC read perm. */
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#define PRIV_VFS_WRITE 311 /* Override vnode DAC write perm. */
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#define PRIV_VFS_ADMIN 312 /* Override vnode DAC admin perm. */
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#define PRIV_VFS_EXEC 313 /* Override vnode DAC exec perm. */
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#define PRIV_VFS_LOOKUP 314 /* Override vnode DAC lookup perm. */
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#define PRIV_VFS_BLOCKRESERVE 315 /* Can use free block reserve. */
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#define PRIV_VFS_CHFLAGS_DEV 316 /* Can chflags() a device node. */
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#define PRIV_VFS_CHOWN 317 /* Can set user; group to non-member. */
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#define PRIV_VFS_CHROOT 318 /* chroot(). */
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#define PRIV_VFS_RETAINSUGID 319 /* Can retain sugid bits on change. */
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#define PRIV_VFS_EXCEEDQUOTA 320 /* Exempt from quota restrictions. */
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#define PRIV_VFS_EXTATTR_SYSTEM 321 /* Operate on system EA namespace. */
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#define PRIV_VFS_FCHROOT 322 /* fchroot(). */
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#define PRIV_VFS_FHOPEN 323 /* Can fhopen(). */
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#define PRIV_VFS_FHSTAT 324 /* Can fhstat(). */
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#define PRIV_VFS_FHSTATFS 325 /* Can fhstatfs(). */
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#define PRIV_VFS_GENERATION 326 /* stat() returns generation number. */
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#define PRIV_VFS_GETFH 327 /* Can retrieve file handles. */
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#define PRIV_VFS_GETQUOTA 328 /* getquota(). */
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#define PRIV_VFS_LINK 329 /* bsd.hardlink_check_uid */
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#define PRIV_VFS_MKNOD_BAD 330 /* Can mknod() to mark bad inodes. */
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#define PRIV_VFS_MKNOD_DEV 331 /* Can mknod() to create dev nodes. */
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#define PRIV_VFS_MKNOD_WHT 332 /* Can mknod() to create whiteout. */
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#define PRIV_VFS_MOUNT 333 /* Can mount(). */
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#define PRIV_VFS_MOUNT_OWNER 334 /* Can manage other users' file systems. */
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#define PRIV_VFS_MOUNT_EXPORTED 335 /* Can set MNT_EXPORTED on mount. */
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#define PRIV_VFS_MOUNT_PERM 336 /* Override dev node perms at mount. */
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#define PRIV_VFS_MOUNT_SUIDDIR 337 /* Can set MNT_SUIDDIR on mount. */
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#define PRIV_VFS_MOUNT_NONUSER 338 /* Can perform a non-user mount. */
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#define PRIV_VFS_SETGID 339 /* Can setgid if not in group. */
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#define PRIV_VFS_SETQUOTA 340 /* setquota(). */
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#define PRIV_VFS_STICKYFILE 341 /* Can set sticky bit on file. */
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#define PRIV_VFS_SYSFLAGS 342 /* Can modify system flags. */
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#define PRIV_VFS_UNMOUNT 343 /* Can unmount(). */
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#define PRIV_VFS_STAT 344 /* Override vnode MAC stat perm. */
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/*
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* Virtual memory privileges.
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*/
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#define PRIV_VM_MADV_PROTECT 360 /* Can set MADV_PROTECT. */
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#define PRIV_VM_MLOCK 361 /* Can mlock(), mlockall(). */
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#define PRIV_VM_MUNLOCK 362 /* Can munlock(), munlockall(). */
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#define PRIV_VM_SWAP_NOQUOTA 363 /*
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* Can override the global
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* swap reservation limits.
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*/
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#define PRIV_VM_SWAP_NORLIMIT 364 /*
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* Can override the per-uid
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* swap reservation limits.
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*/
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/*
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* Device file system privileges.
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*/
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#define PRIV_DEVFS_RULE 370 /* Can manage devfs rules. */
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#define PRIV_DEVFS_SYMLINK 371 /* Can create symlinks in devfs. */
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/*
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* Random number generator privileges.
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*/
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#define PRIV_RANDOM_RESEED 380 /* Closing /dev/random reseeds. */
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/*
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* Network stack privileges.
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*/
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#define PRIV_NET_BRIDGE 390 /* Administer bridge. */
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#define PRIV_NET_GRE 391 /* Administer GRE. */
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#define _PRIV_NET_PPP 392 /* Removed. */
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#define _PRIV_NET_SLIP 393 /* Removed. */
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#define PRIV_NET_BPF 394 /* Monitor BPF. */
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#define PRIV_NET_RAW 395 /* Open raw socket. */
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#define PRIV_NET_ROUTE 396 /* Administer routing. */
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#define PRIV_NET_TAP 397 /* Can open tap device. */
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#define PRIV_NET_SETIFMTU 398 /* Set interface MTU. */
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#define PRIV_NET_SETIFFLAGS 399 /* Set interface flags. */
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#define PRIV_NET_SETIFCAP 400 /* Set interface capabilities. */
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#define PRIV_NET_SETIFNAME 401 /* Set interface name. */
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#define PRIV_NET_SETIFMETRIC 402 /* Set interface metrics. */
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#define PRIV_NET_SETIFPHYS 403 /* Set interface physical layer prop. */
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#define PRIV_NET_SETIFMAC 404 /* Set interface MAC label. */
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#define PRIV_NET_ADDMULTI 405 /* Add multicast addr. to ifnet. */
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#define PRIV_NET_DELMULTI 406 /* Delete multicast addr. from ifnet. */
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#define PRIV_NET_HWIOCTL 407 /* Issue hardware ioctl on ifnet. */
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#define PRIV_NET_SETLLADDR 408 /* Set interface link-level address. */
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#define PRIV_NET_ADDIFGROUP 409 /* Add new interface group. */
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#define PRIV_NET_DELIFGROUP 410 /* Delete interface group. */
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#define PRIV_NET_IFCREATE 411 /* Create cloned interface. */
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#define PRIV_NET_IFDESTROY 412 /* Destroy cloned interface. */
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#define PRIV_NET_ADDIFADDR 413 /* Add protocol addr to interface. */
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#define PRIV_NET_DELIFADDR 414 /* Delete protocol addr on interface. */
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#define PRIV_NET_LAGG 415 /* Administer lagg interface. */
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#define PRIV_NET_GIF 416 /* Administer gif interface. */
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#define PRIV_NET_SETIFVNET 417 /* Move interface to vnet. */
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/*
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* 802.11-related privileges.
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*/
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#define PRIV_NET80211_GETKEY 440 /* Query 802.11 keys. */
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#define PRIV_NET80211_MANAGE 441 /* Administer 802.11. */
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/*
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* AppleTalk privileges.
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*/
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#define PRIV_NETATALK_RESERVEDPORT 450 /* Bind low port number. */
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/*
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* ATM privileges.
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*/
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#define PRIV_NETATM_CFG 460
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#define PRIV_NETATM_ADD 461
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#define PRIV_NETATM_DEL 462
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#define PRIV_NETATM_SET 463
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/*
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* Bluetooth privileges.
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*/
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#define PRIV_NETBLUETOOTH_RAW 470 /* Open raw bluetooth socket. */
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/*
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* Netgraph and netgraph module privileges.
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*/
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#define PRIV_NETGRAPH_CONTROL 480 /* Open netgraph control socket. */
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#define PRIV_NETGRAPH_TTY 481 /* Configure tty for netgraph. */
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/*
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* IPv4 and IPv6 privileges.
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*/
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#define PRIV_NETINET_RESERVEDPORT 490 /* Bind low port number. */
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#define PRIV_NETINET_IPFW 491 /* Administer IPFW firewall. */
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#define PRIV_NETINET_DIVERT 492 /* Open IP divert socket. */
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#define PRIV_NETINET_PF 493 /* Administer pf firewall. */
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#define PRIV_NETINET_DUMMYNET 494 /* Administer DUMMYNET. */
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#define PRIV_NETINET_CARP 495 /* Administer CARP. */
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#define PRIV_NETINET_MROUTE 496 /* Administer multicast routing. */
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#define PRIV_NETINET_RAW 497 /* Open netinet raw socket. */
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#define PRIV_NETINET_GETCRED 498 /* Query netinet pcb credentials. */
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#define PRIV_NETINET_ADDRCTRL6 499 /* Administer IPv6 address scopes. */
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#define PRIV_NETINET_ND6 500 /* Administer IPv6 neighbor disc. */
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#define PRIV_NETINET_SCOPE6 501 /* Administer IPv6 address scopes. */
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#define PRIV_NETINET_ALIFETIME6 502 /* Administer IPv6 address lifetimes. */
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#define PRIV_NETINET_IPSEC 503 /* Administer IPSEC. */
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#define PRIV_NETINET_REUSEPORT 504 /* Allow [rapid] port/address reuse. */
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#define PRIV_NETINET_SETHDROPTS 505 /* Set certain IPv4/6 header options. */
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#define PRIV_NETINET_BINDANY 506 /* Allow bind to any address. */
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/*
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* IPX/SPX privileges.
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*/
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#define PRIV_NETIPX_RESERVEDPORT 520 /* Bind low port number. */
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#define PRIV_NETIPX_RAW 521 /* Open netipx raw socket. */
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/*
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* NCP privileges.
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*/
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#define PRIV_NETNCP 530 /* Use another user's connection. */
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/*
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* SMB privileges.
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*/
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#define PRIV_NETSMB 540 /* Use another user's connection. */
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/*
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* VM86 privileges.
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*/
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#define PRIV_VM86_INTCALL 550 /* Allow invoking vm86 int handlers. */
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/*
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* Set of reserved privilege values, which will be allocated to code as
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* needed, in order to avoid renumbering later privileges due to insertion.
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*/
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#define _PRIV_RESERVED0 560
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#define _PRIV_RESERVED1 561
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#define _PRIV_RESERVED2 562
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#define _PRIV_RESERVED3 563
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#define _PRIV_RESERVED4 564
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#define _PRIV_RESERVED5 565
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#define _PRIV_RESERVED6 566
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#define _PRIV_RESERVED7 567
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#define _PRIV_RESERVED8 568
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#define _PRIV_RESERVED9 569
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#define _PRIV_RESERVED10 570
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#define _PRIV_RESERVED11 571
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#define _PRIV_RESERVED12 572
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#define _PRIV_RESERVED13 573
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#define _PRIV_RESERVED14 574
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#define _PRIV_RESERVED15 575
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/*
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* Define a set of valid privilege numbers that can be used by loadable
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* modules that don't yet have privilege reservations. Ideally, these should
|
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* not be used, since their meaning is opaque to any policies that are aware
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* of specific privileges, such as jail, and as such may be arbitrarily
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* denied.
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*/
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#define PRIV_MODULE0 600
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#define PRIV_MODULE1 601
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#define PRIV_MODULE2 602
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#define PRIV_MODULE3 603
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#define PRIV_MODULE4 604
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|
#define PRIV_MODULE5 605
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|
#define PRIV_MODULE6 606
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|
#define PRIV_MODULE7 607
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#define PRIV_MODULE8 608
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|
#define PRIV_MODULE9 609
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|
#define PRIV_MODULE10 610
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|
#define PRIV_MODULE11 611
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|
#define PRIV_MODULE12 612
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|
#define PRIV_MODULE13 613
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#define PRIV_MODULE14 614
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#define PRIV_MODULE15 615
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|
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/*
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|
* DDB(4) privileges.
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|
*/
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|
#define PRIV_DDB_CAPTURE 620 /* Allow reading of DDB capture log. */
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|
|
|
/*
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|
* Arla/nnpfs privileges.
|
|
*/
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|
#define PRIV_NNPFS_DEBUG 630 /* Perforn ARLA_VIOC_NNPFSDEBUG. */
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|
|
|
/*
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|
* cpuctl(4) privileges.
|
|
*/
|
|
#define PRIV_CPUCTL_WRMSR 640 /* Write model-specific register. */
|
|
#define PRIV_CPUCTL_UPDATE 641 /* Update cpu microcode. */
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|
|
|
/*
|
|
* Capi4BSD privileges.
|
|
*/
|
|
#define PRIV_C4B_RESET_CTLR 650 /* Load firmware, reset controller. */
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|
#define PRIV_C4B_TRACE 651 /* Unrestricted CAPI message tracing. */
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|
|
|
/*
|
|
* OpenAFS privileges.
|
|
*/
|
|
#define PRIV_AFS_ADMIN 660 /* Can change AFS client settings. */
|
|
#define PRIV_AFS_DAEMON 661 /* Can become the AFS daemon. */
|
|
|
|
/*
|
|
* Track end of privilege list.
|
|
*/
|
|
#define _PRIV_HIGHEST 662
|
|
|
|
/*
|
|
* Validate that a named privilege is known by the privilege system. Invalid
|
|
* privileges presented to the privilege system by a priv_check interface
|
|
* will result in a panic. This is only approximate due to sparse allocation
|
|
* of the privilege space.
|
|
*/
|
|
#define PRIV_VALID(x) ((x) > _PRIV_LOWEST && (x) < _PRIV_HIGHEST)
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* Privilege check interfaces, modeled after historic suser() interfacs, but
|
|
* with the addition of a specific privilege name. No flags are currently
|
|
* defined for the API. Historically, flags specified using the real uid
|
|
* instead of the effective uid, and whether or not the check should be
|
|
* allowed in jail.
|
|
*/
|
|
struct thread;
|
|
struct ucred;
|
|
int priv_check(struct thread *td, int priv);
|
|
int priv_check_cred(struct ucred *cred, int priv, int flags);
|
|
#endif
|
|
|
|
#endif /* !_SYS_PRIV_H_ */
|