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freebsd-dev/sys/sys/mac_policy.h
Robert Watson babe9a2bb3 Introduce p_canwait() and MAC Framework and MAC Policy entry points 
mac_check_proc_wait(), which control the ability to wait4() specific
processes.  This permits MAC policies to limit information flow from
children that have changed label, although has to be handled carefully
due to common programming expectations regarding the behavior of
wait4().  The cr_seeotheruids() check in p_canwait() is #if 0'd for
this reason.

The mac_stub and mac_test policies are updated to reflect these new
entry points.

Sponsored by:	SPAWAR, SPARTA
Obtained from:	TrustedBSD Project
2005-04-18 13:36:57 +00:00

605 lines
26 KiB
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/*-
* Copyright (c) 1999-2002 Robert N. M. Watson
* Copyright (c) 2001-2005 Networks Associates Technology, Inc.
* 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 Network
* Associates Laboratories, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
* as part of the DARPA CHATS research program.
*
* 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.
*
* $FreeBSD$
*/
/*
* Kernel interface for MAC policy modules.
*/
#ifndef _SYS_MAC_POLICY_H_
#define _SYS_MAC_POLICY_H_
/*-
* Pluggable access control policy definition structure.
*
* List of operations that are performed as part of the implementation
* of a MAC policy. Policy implementors declare operations with a
* mac_policy_ops structure, and using the MAC_POLICY_SET() macro.
* If an entry point is not declared, then then the policy will be ignored
* during evaluation of that event or check.
*
* Operations are sorted first by general class of operation, then
* alphabetically.
*/
struct acl;
struct bpf_d;
struct componentname;
struct devfs_dirent;
struct ifnet;
struct image_params;
struct inpcb;
struct ipq;
struct label;
struct mac_policy_conf;
struct mbuf;
struct mount;
struct msqid_kernel;
struct pipepair;
struct proc;
struct sbuf;
struct semid_kernel;
struct shmid_kernel;
struct sockaddr;
struct socket;
struct sysctl_oid;
struct sysctl_req;
struct thread;
struct ucred;
struct uio;
struct vattr;
struct vnode;
struct mac_policy_ops {
/*
* Policy module operations.
*/
void (*mpo_destroy)(struct mac_policy_conf *mpc);
void (*mpo_init)(struct mac_policy_conf *mpc);
/*
* General policy-directed security system call so that policies may
* implement new services without reserving explicit system call
* numbers.
*/
int (*mpo_syscall)(struct thread *td, int call, void *arg);
/*
* Label operations. Initialize label storage, destroy label
* storage, recycle for re-use without init/destroy, copy a label to
* initialized storage, and externalize/internalize from/to
* initialized storage.
*/
void (*mpo_init_bpfdesc_label)(struct label *label);
void (*mpo_init_cred_label)(struct label *label);
void (*mpo_init_devfsdirent_label)(struct label *label);
void (*mpo_init_ifnet_label)(struct label *label);
int (*mpo_init_inpcb_label)(struct label *label, int flag);
void (*mpo_init_sysv_msgmsg_label)(struct label *label);
void (*mpo_init_sysv_msgqueue_label)(struct label *label);
void (*mpo_init_sysv_sema_label)(struct label *label);
void (*mpo_init_sysv_shm_label)(struct label *label);
int (*mpo_init_ipq_label)(struct label *label, int flag);
int (*mpo_init_mbuf_label)(struct label *label, int flag);
void (*mpo_init_mount_label)(struct label *label);
void (*mpo_init_mount_fs_label)(struct label *label);
int (*mpo_init_socket_label)(struct label *label, int flag);
int (*mpo_init_socket_peer_label)(struct label *label, int flag);
void (*mpo_init_pipe_label)(struct label *label);
void (*mpo_init_proc_label)(struct label *label);
void (*mpo_init_vnode_label)(struct label *label);
void (*mpo_destroy_bpfdesc_label)(struct label *label);
void (*mpo_destroy_cred_label)(struct label *label);
void (*mpo_destroy_devfsdirent_label)(struct label *label);
void (*mpo_destroy_ifnet_label)(struct label *label);
void (*mpo_destroy_inpcb_label)(struct label *label);
void (*mpo_destroy_sysv_msgmsg_label)(struct label *label);
void (*mpo_destroy_sysv_msgqueue_label)(struct label *label);
void (*mpo_destroy_sysv_sema_label)(struct label *label);
void (*mpo_destroy_sysv_shm_label)(struct label *label);
void (*mpo_destroy_ipq_label)(struct label *label);
void (*mpo_destroy_mbuf_label)(struct label *label);
void (*mpo_destroy_mount_label)(struct label *label);
void (*mpo_destroy_mount_fs_label)(struct label *label);
void (*mpo_destroy_socket_label)(struct label *label);
void (*mpo_destroy_socket_peer_label)(struct label *label);
void (*mpo_destroy_pipe_label)(struct label *label);
void (*mpo_destroy_proc_label)(struct label *label);
void (*mpo_destroy_vnode_label)(struct label *label);
void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel);
void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel);
void (*mpo_cleanup_sysv_sema)(struct label *semalabel);
void (*mpo_cleanup_sysv_shm)(struct label *shmlabel);
void (*mpo_copy_cred_label)(struct label *src,
struct label *dest);
void (*mpo_copy_ifnet_label)(struct label *src,
struct label *dest);
void (*mpo_copy_mbuf_label)(struct label *src,
struct label *dest);
void (*mpo_copy_pipe_label)(struct label *src,
struct label *dest);
void (*mpo_copy_socket_label)(struct label *src,
struct label *dest);
void (*mpo_copy_vnode_label)(struct label *src,
struct label *dest);
int (*mpo_externalize_cred_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_ifnet_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_pipe_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_socket_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_socket_peer_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_vnode_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_internalize_cred_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_ifnet_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_pipe_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_socket_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_vnode_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
/*
* Labeling event operations: file system objects, and things that
* look a lot like file system objects.
*/
void (*mpo_associate_vnode_devfs)(struct mount *mp,
struct label *fslabel, struct devfs_dirent *de,
struct label *delabel, struct vnode *vp,
struct label *vlabel);
int (*mpo_associate_vnode_extattr)(struct mount *mp,
struct label *fslabel, struct vnode *vp,
struct label *vlabel);
void (*mpo_associate_vnode_singlelabel)(struct mount *mp,
struct label *fslabel, struct vnode *vp,
struct label *vlabel);
void (*mpo_create_devfs_device)(struct mount *mp, struct cdev *dev,
struct devfs_dirent *de, struct label *label);
void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname,
int dirnamelen, struct devfs_dirent *de,
struct label *label);
void (*mpo_create_devfs_symlink)(struct ucred *cred,
struct mount *mp, struct devfs_dirent *dd,
struct label *ddlabel, struct devfs_dirent *de,
struct label *delabel);
int (*mpo_create_vnode_extattr)(struct ucred *cred,
struct mount *mp, struct label *fslabel,
struct vnode *dvp, struct label *dlabel,
struct vnode *vp, struct label *vlabel,
struct componentname *cnp);
void (*mpo_create_mount)(struct ucred *cred, struct mount *mp,
struct label *mntlabel, struct label *fslabel);
void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp,
struct label *mountlabel, struct label *fslabel);
void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp,
struct label *vnodelabel, struct label *label);
int (*mpo_setlabel_vnode_extattr)(struct ucred *cred,
struct vnode *vp, struct label *vlabel,
struct label *intlabel);
void (*mpo_update_devfsdirent)(struct mount *mp,
struct devfs_dirent *devfs_dirent,
struct label *direntlabel, struct vnode *vp,
struct label *vnodelabel);
/*
* Labeling event operations: IPC objects.
*/
void (*mpo_create_mbuf_from_socket)(struct socket *so,
struct label *socketlabel, struct mbuf *m,
struct label *mbuflabel);
void (*mpo_create_socket)(struct ucred *cred, struct socket *so,
struct label *socketlabel);
void (*mpo_create_socket_from_socket)(struct socket *oldsocket,
struct label *oldsocketlabel, struct socket *newsocket,
struct label *newsocketlabel);
void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so,
struct label *oldlabel, struct label *newlabel);
void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp,
struct label *oldlabel, struct label *newlabel);
void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf,
struct label *mbuflabel, struct socket *so,
struct label *socketpeerlabel);
void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket,
struct label *oldsocketlabel, struct socket *newsocket,
struct label *newsocketpeerlabel);
void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp,
struct label *pipelabel);
/*
* Labeling event operations: System V IPC primitives.
*/
void (*mpo_create_sysv_msgmsg)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqlabel,
struct msg *msgptr, struct label *msglabel);
void (*mpo_create_sysv_msgqueue)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqlabel);
void (*mpo_create_sysv_sema)(struct ucred *cred,
struct semid_kernel *semakptr, struct label *semalabel);
void (*mpo_create_sysv_shm)(struct ucred *cred,
struct shmid_kernel *shmsegptr, struct label *shmlabel);
/*
* Labeling event operations: network objects.
*/
void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d,
struct label *bpflabel);
void (*mpo_create_ifnet)(struct ifnet *ifnet,
struct label *ifnetlabel);
void (*mpo_create_inpcb_from_socket)(struct socket *so,
struct label *solabel, struct inpcb *inp,
struct label *inplabel);
void (*mpo_create_ipq)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_create_datagram_from_ipq)
(struct ipq *ipq, struct label *ipqlabel,
struct mbuf *datagram, struct label *datagramlabel);
void (*mpo_create_fragment)(struct mbuf *datagram,
struct label *datagramlabel, struct mbuf *fragment,
struct label *fragmentlabel);
void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp,
struct label *inplabel, struct mbuf *m,
struct label *mlabel);
void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf,
struct label *oldlabel, struct mbuf *newmbuf,
struct label *newlabel);
void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d,
struct label *bpflabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf,
struct label *oldmbuflabel, struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *newmbuf,
struct label *newmbuflabel);
void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf,
struct label *oldmbuflabel, struct mbuf *newmbuf,
struct label *newmbuflabel);
int (*mpo_fragment_match)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_reflect_mbuf_icmp)(struct mbuf *m,
struct label *mlabel);
void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel);
void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet,
struct label *ifnetlabel, struct label *newlabel);
void (*mpo_update_ipq)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_inpcb_sosetlabel)(struct socket *so,
struct label *label, struct inpcb *inp,
struct label *inplabel);
/*
* Labeling event operations: processes.
*/
void (*mpo_execve_transition)(struct ucred *old, struct ucred *new,
struct vnode *vp, struct label *vnodelabel,
struct label *interpvnodelabel,
struct image_params *imgp, struct label *execlabel);
int (*mpo_execve_will_transition)(struct ucred *old,
struct vnode *vp, struct label *vnodelabel,
struct label *interpvnodelabel,
struct image_params *imgp, struct label *execlabel);
void (*mpo_create_proc0)(struct ucred *cred);
void (*mpo_create_proc1)(struct ucred *cred);
void (*mpo_relabel_cred)(struct ucred *cred,
struct label *newlabel);
void (*mpo_thread_userret)(struct thread *thread);
/*
* Access control checks.
*/
int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d,
struct label *bpflabel, struct ifnet *ifnet,
struct label *ifnetlabel);
int (*mpo_check_cred_relabel)(struct ucred *cred,
struct label *newlabel);
int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2);
int (*mpo_check_ifnet_relabel)(struct ucred *cred,
struct ifnet *ifnet, struct label *ifnetlabel,
struct label *newlabel);
int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *m,
struct label *mbuflabel);
int (*mpo_check_inpcb_deliver)(struct inpcb *inp,
struct label *inplabel, struct mbuf *m,
struct label *mlabel);
int (*mpo_check_sysv_msgmsq)(struct ucred *cred,
struct msg *msgptr, struct label *msglabel,
struct msqid_kernel *msqkptr, struct label *msqklabel);
int (*mpo_check_sysv_msgrcv)(struct ucred *cred,
struct msg *msgptr, struct label *msglabel);
int (*mpo_check_sysv_msgrmid)(struct ucred *cred,
struct msg *msgptr, struct label *msglabel);
int (*mpo_check_sysv_msqget)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqklabel);
int (*mpo_check_sysv_msqsnd)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqklabel);
int (*mpo_check_sysv_msqrcv)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqklabel);
int (*mpo_check_sysv_msqctl)(struct ucred *cred,
struct msqid_kernel *msqkptr, struct label *msqklabel,
int cmd);
int (*mpo_check_sysv_semctl)(struct ucred *cred,
struct semid_kernel *semakptr, struct label *semaklabel,
int cmd);
int (*mpo_check_sysv_semget)(struct ucred *cred,
struct semid_kernel *semakptr, struct label *semaklabel);
int (*mpo_check_sysv_semop)(struct ucred *cred,
struct semid_kernel *semakptr, struct label *semaklabel,
size_t accesstype);
int (*mpo_check_sysv_shmat)(struct ucred *cred,
struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int shmflg);
int (*mpo_check_sysv_shmctl)(struct ucred *cred,
struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int cmd);
int (*mpo_check_sysv_shmdt)(struct ucred *cred,
struct shmid_kernel *shmsegptr,
struct label *shmseglabel);
int (*mpo_check_sysv_shmget)(struct ucred *cred,
struct shmid_kernel *shmsegptr,
struct label *shmseglabel, int shmflg);
int (*mpo_check_kenv_dump)(struct ucred *cred);
int (*mpo_check_kenv_get)(struct ucred *cred, char *name);
int (*mpo_check_kenv_set)(struct ucred *cred, char *name,
char *value);
int (*mpo_check_kenv_unset)(struct ucred *cred, char *name);
int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp,
struct label *vlabel);
int (*mpo_check_kld_stat)(struct ucred *cred);
int (*mpo_check_kld_unload)(struct ucred *cred);
int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp,
struct label *mntlabel);
int (*mpo_check_pipe_ioctl)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel,
unsigned long cmd, void *data);
int (*mpo_check_pipe_poll)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_read)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_relabel)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel,
struct label *newlabel);
int (*mpo_check_pipe_stat)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_write)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_proc_debug)(struct ucred *cred,
struct proc *proc);
int (*mpo_check_proc_sched)(struct ucred *cred,
struct proc *proc);
int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid);
int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid);
int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid);
int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid);
int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups,
gid_t *gidset);
int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid,
uid_t euid);
int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid,
gid_t egid);
int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid,
uid_t euid, uid_t suid);
int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid,
gid_t egid, gid_t sgid);
int (*mpo_check_proc_signal)(struct ucred *cred,
struct proc *proc, int signum);
int (*mpo_check_proc_wait)(struct ucred *cred,
struct proc *proc);
int (*mpo_check_socket_accept)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_bind)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct sockaddr *sockaddr);
int (*mpo_check_socket_connect)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct sockaddr *sockaddr);
int (*mpo_check_socket_deliver)(struct socket *so,
struct label *socketlabel, struct mbuf *m,
struct label *mbuflabel);
int (*mpo_check_socket_listen)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_poll)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_receive)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_relabel)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct label *newlabel);
int (*mpo_check_socket_send)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_stat)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_visible)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_sysarch_ioperm)(struct ucred *cred);
int (*mpo_check_system_acct)(struct ucred *cred,
struct vnode *vp, struct label *vlabel);
int (*mpo_check_system_nfsd)(struct ucred *cred);
int (*mpo_check_system_reboot)(struct ucred *cred, int howto);
int (*mpo_check_system_settime)(struct ucred *cred);
int (*mpo_check_system_swapon)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_system_swapoff)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_system_sysctl)(struct ucred *cred,
struct sysctl_oid *oidp, void *arg1, int arg2,
struct sysctl_req *req);
int (*mpo_check_vnode_access)(struct ucred *cred,
struct vnode *vp, struct label *label, int acc_mode);
int (*mpo_check_vnode_chdir)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_chroot)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_create)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct componentname *cnp, struct vattr *vap);
int (*mpo_check_vnode_delete)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct vnode *vp, struct label *label,
struct componentname *cnp);
int (*mpo_check_vnode_deleteacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type);
int (*mpo_check_vnode_deleteextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name);
int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp,
struct label *label, struct image_params *imgp,
struct label *execlabel);
int (*mpo_check_vnode_getacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type);
int (*mpo_check_vnode_getextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name, struct uio *uio);
int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp,
struct label *dlabel, struct vnode *vp,
struct label *label, struct componentname *cnp);
int (*mpo_check_vnode_listextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace);
int (*mpo_check_vnode_lookup)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct componentname *cnp);
int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp,
struct label *label, int prot, int flags);
void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred,
struct vnode *vp, struct label *label, int *prot);
int (*mpo_check_vnode_mprotect)(struct ucred *cred,
struct vnode *vp, struct label *label, int prot);
int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp,
struct label *label, int acc_mode);
int (*mpo_check_vnode_poll)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_read)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_readdir)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_readlink)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_vnode_relabel)(struct ucred *cred,
struct vnode *vp, struct label *vnodelabel,
struct label *newlabel);
int (*mpo_check_vnode_rename_from)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel, struct vnode *vp,
struct label *label, struct componentname *cnp);
int (*mpo_check_vnode_rename_to)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel, struct vnode *vp,
struct label *label, int samedir,
struct componentname *cnp);
int (*mpo_check_vnode_revoke)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_vnode_setacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type,
struct acl *acl);
int (*mpo_check_vnode_setextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name, struct uio *uio);
int (*mpo_check_vnode_setflags)(struct ucred *cred,
struct vnode *vp, struct label *label, u_long flags);
int (*mpo_check_vnode_setmode)(struct ucred *cred,
struct vnode *vp, struct label *label, mode_t mode);
int (*mpo_check_vnode_setowner)(struct ucred *cred,
struct vnode *vp, struct label *label, uid_t uid,
gid_t gid);
int (*mpo_check_vnode_setutimes)(struct ucred *cred,
struct vnode *vp, struct label *label,
struct timespec atime, struct timespec mtime);
int (*mpo_check_vnode_stat)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_write)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
};
/*
* struct mac_policy_conf is the registration structure for policies, and is
* provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT
* to register the policy. In general, the fields are immutable, with the
* exception of the "security field", run-time flags, and policy list entry,
* which are managed by the MAC Framework. Be careful when modifying this
* structure, as its layout is statically compiled into all policies.
*/
struct mac_policy_conf {
char *mpc_name; /* policy name */
char *mpc_fullname; /* policy full name */
struct mac_policy_ops *mpc_ops; /* policy operations */
int mpc_loadtime_flags; /* flags */
int *mpc_field_off; /* security field */
int mpc_runtime_flags; /* flags */
LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */
};
/* Flags for the mpc_loadtime_flags field. */
#define MPC_LOADTIME_FLAG_NOTLATE 0x00000001
#define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002
#define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004
/* Flags for the mpc_runtime_flags field. */
#define MPC_RUNTIME_FLAG_REGISTERED 0x00000001
#define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \
static struct mac_policy_conf mpname##_mac_policy_conf = { \
#mpname, \
mpfullname, \
mpops, \
mpflags, \
privdata_wanted, \
0, \
}; \
static moduledata_t mpname##_mod = { \
#mpname, \
mac_policy_modevent, \
&mpname##_mac_policy_conf \
}; \
MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \
DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \
SI_ORDER_MIDDLE)
int mac_policy_modevent(module_t mod, int type, void *data);
#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s]
#endif /* !_SYS_MAC_POLICY_H_ */
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