mac.h revision 147982
1/*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc. 4 * Copyright (c) 2005 SPARTA, Inc. 5 * All rights reserved. 6 * 7 * This software was developed by Robert Watson for the TrustedBSD Project. 8 * 9 * This software was developed for the FreeBSD Project in part by Network 10 * Associates Laboratories, the Security Research Division of Network 11 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), 12 * as part of the DARPA CHATS research program. 13 * 14 * This software was enhanced by SPARTA ISSO under SPAWAR contract 15 * N66001-04-C-6019 ("SEFOS"). 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * $FreeBSD: head/sys/sys/mac.h 147982 2005-07-14 10:22:09Z rwatson $ 39 */ 40/* 41 * Userland/kernel interface for Mandatory Access Control. 42 * 43 * The POSIX.1e implementation page may be reached at: 44 * http://www.trustedbsd.org/ 45 */ 46 47#ifndef _SYS_MAC_H_ 48#define _SYS_MAC_H_ 49 50#include <sys/_label.h> 51 52#ifndef _POSIX_MAC 53#define _POSIX_MAC 54#endif 55 56/* 57 * MAC framework-related constants and limits. 58 */ 59#define MAC_MAX_POLICY_NAME 32 60#define MAC_MAX_LABEL_ELEMENT_NAME 32 61#define MAC_MAX_LABEL_ELEMENT_DATA 4096 62#define MAC_MAX_LABEL_BUF_LEN 8192 63 64struct mac { 65 size_t m_buflen; 66 char *m_string; 67}; 68 69typedef struct mac *mac_t; 70 71#ifndef _KERNEL 72 73/* 74 * Location of the userland MAC framework configuration file. mac.conf 75 * binds policy names to shared libraries that understand those policies, 76 * as well as setting defaults for MAC-aware applications. 77 */ 78#define MAC_CONFFILE "/etc/mac.conf" 79 80/* 81 * Extended non-POSIX.1e interfaces that offer additional services 82 * available from the userland and kernel MAC frameworks. 83 */ 84__BEGIN_DECLS 85int mac_execve(char *fname, char **argv, char **envv, mac_t _label); 86int mac_free(mac_t _label); 87int mac_from_text(mac_t *_label, const char *_text); 88int mac_get_fd(int _fd, mac_t _label); 89int mac_get_file(const char *_path, mac_t _label); 90int mac_get_link(const char *_path, mac_t _label); 91int mac_get_peer(int _fd, mac_t _label); 92int mac_get_pid(pid_t _pid, mac_t _label); 93int mac_get_proc(mac_t _label); 94int mac_is_present(const char *_policyname); 95int mac_prepare(mac_t *_label, const char *_elements); 96int mac_prepare_file_label(mac_t *_label); 97int mac_prepare_ifnet_label(mac_t *_label); 98int mac_prepare_process_label(mac_t *_label); 99int mac_prepare_type(mac_t *_label, const char *_type); 100int mac_set_fd(int _fildes, const mac_t _label); 101int mac_set_file(const char *_path, mac_t _label); 102int mac_set_link(const char *_path, mac_t _label); 103int mac_set_proc(const mac_t _label); 104int mac_syscall(const char *_policyname, int _call, void *_arg); 105int mac_to_text(mac_t mac, char **_text); 106__END_DECLS 107 108#else /* _KERNEL */ 109 110/* 111 * Kernel functions to manage and evaluate labels. 112 */ 113struct bpf_d; 114struct cdev; 115struct componentname; 116struct devfs_dirent; 117struct ifnet; 118struct ifreq; 119struct inpcb; 120struct image_params; 121struct inpcb; 122struct ipq; 123struct ksem; 124struct m_tag; 125struct mbuf; 126struct mount; 127struct msg; 128struct msqid_kernel; 129struct proc; 130struct semid_kernel; 131struct shmid_kernel; 132struct sockaddr; 133struct socket; 134struct sysctl_oid; 135struct sysctl_req; 136struct pipepair; 137struct thread; 138struct timespec; 139struct ucred; 140struct uio; 141struct vattr; 142struct vnode; 143 144#include <sys/acl.h> /* XXX acl_type_t */ 145 146struct vop_setlabel_args; 147 148/* 149 * Label operations. 150 */ 151void mac_init_bpfdesc(struct bpf_d *); 152void mac_init_cred(struct ucred *); 153void mac_init_devfsdirent(struct devfs_dirent *); 154void mac_init_ifnet(struct ifnet *); 155int mac_init_inpcb(struct inpcb *, int flag); 156void mac_init_sysv_msgmsg(struct msg *); 157void mac_init_sysv_msgqueue(struct msqid_kernel*); 158void mac_init_sysv_sem(struct semid_kernel*); 159void mac_init_sysv_shm(struct shmid_kernel*); 160int mac_init_ipq(struct ipq *, int flag); 161int mac_init_socket(struct socket *, int flag); 162void mac_init_pipe(struct pipepair *); 163void mac_init_posix_sem(struct ksem *); 164int mac_init_mbuf(struct mbuf *mbuf, int flag); 165int mac_init_mbuf_tag(struct m_tag *, int flag); 166void mac_init_mount(struct mount *); 167void mac_init_proc(struct proc *); 168void mac_init_vnode(struct vnode *); 169void mac_copy_mbuf(struct mbuf *m_from, struct mbuf *m_to); 170void mac_copy_mbuf_tag(struct m_tag *, struct m_tag *); 171void mac_copy_vnode_label(struct label *, struct label *label); 172void mac_destroy_bpfdesc(struct bpf_d *); 173void mac_destroy_cred(struct ucred *); 174void mac_destroy_devfsdirent(struct devfs_dirent *); 175void mac_destroy_ifnet(struct ifnet *); 176void mac_destroy_inpcb(struct inpcb *); 177void mac_destroy_sysv_msgmsg(struct msg *); 178void mac_destroy_sysv_msgqueue(struct msqid_kernel *); 179void mac_destroy_sysv_sem(struct semid_kernel *); 180void mac_destroy_sysv_shm(struct shmid_kernel *); 181void mac_destroy_ipq(struct ipq *); 182void mac_destroy_socket(struct socket *); 183void mac_destroy_pipe(struct pipepair *); 184void mac_destroy_posix_sem(struct ksem *); 185void mac_destroy_proc(struct proc *); 186void mac_destroy_mbuf_tag(struct m_tag *); 187void mac_destroy_mount(struct mount *); 188void mac_destroy_vnode(struct vnode *); 189 190struct label *mac_cred_label_alloc(void); 191void mac_cred_label_free(struct label *label); 192struct label *mac_vnode_label_alloc(void); 193void mac_vnode_label_free(struct label *label); 194 195/* 196 * Labeling event operations: file system objects, and things that 197 * look a lot like file system objects. 198 */ 199void mac_associate_vnode_devfs(struct mount *mp, struct devfs_dirent *de, 200 struct vnode *vp); 201int mac_associate_vnode_extattr(struct mount *mp, struct vnode *vp); 202void mac_associate_vnode_singlelabel(struct mount *mp, struct vnode *vp); 203void mac_create_devfs_device(struct ucred *cred, struct mount *mp, 204 struct cdev *dev, struct devfs_dirent *de); 205void mac_create_devfs_directory(struct mount *mp, char *dirname, 206 int dirnamelen, struct devfs_dirent *de); 207void mac_create_devfs_symlink(struct ucred *cred, struct mount *mp, 208 struct devfs_dirent *dd, struct devfs_dirent *de); 209int mac_create_vnode_extattr(struct ucred *cred, struct mount *mp, 210 struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 211void mac_create_mount(struct ucred *cred, struct mount *mp); 212void mac_create_root_mount(struct ucred *cred, struct mount *mp); 213void mac_relabel_vnode(struct ucred *cred, struct vnode *vp, 214 struct label *newlabel); 215void mac_update_devfsdirent(struct mount *mp, struct devfs_dirent *de, 216 struct vnode *vp); 217 218/* 219 * Labeling event operations: IPC objects. 220 */ 221void mac_create_mbuf_from_socket(struct socket *so, struct mbuf *m); 222void mac_create_socket(struct ucred *cred, struct socket *socket); 223void mac_create_socket_from_socket(struct socket *oldsocket, 224 struct socket *newsocket); 225void mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, 226 struct socket *socket); 227void mac_set_socket_peer_from_socket(struct socket *oldsocket, 228 struct socket *newsocket); 229void mac_create_pipe(struct ucred *cred, struct pipepair *pp); 230 231/* 232 * Labeling event operations: System V IPC primitives 233 */ 234void mac_create_sysv_msgmsg(struct ucred *cred, 235 struct msqid_kernel *msqkptr, struct msg *msgptr); 236void mac_create_sysv_msgqueue(struct ucred *cred, 237 struct msqid_kernel *msqkptr); 238void mac_create_sysv_sem(struct ucred *cred, 239 struct semid_kernel *semakptr); 240void mac_create_sysv_shm(struct ucred *cred, 241 struct shmid_kernel *shmsegptr); 242 243/* 244 * Labeling event operations: POSIX (global/inter-process) semaphores. 245 */ 246void mac_create_posix_sem(struct ucred *cred, struct ksem *ksemptr); 247 248 249/* 250 * Labeling event operations: network objects. 251 */ 252void mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d); 253void mac_create_ifnet(struct ifnet *ifp); 254void mac_create_inpcb_from_socket(struct socket *so, struct inpcb *inp); 255void mac_create_ipq(struct mbuf *fragment, struct ipq *ipq); 256void mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram); 257void mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment); 258void mac_create_mbuf_from_inpcb(struct inpcb *inp, struct mbuf *m); 259void mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *m); 260void mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *m); 261void mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *m); 262void mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, 263 struct ifnet *ifnet, struct mbuf *newmbuf); 264void mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf); 265int mac_fragment_match(struct mbuf *fragment, struct ipq *ipq); 266void mac_reflect_mbuf_icmp(struct mbuf *m); 267void mac_reflect_mbuf_tcp(struct mbuf *m); 268void mac_update_ipq(struct mbuf *fragment, struct ipq *ipq); 269void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); 270 271/* 272 * Labeling event operations: processes. 273 */ 274void mac_copy_cred(struct ucred *cr1, struct ucred *cr2); 275int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); 276void mac_execve_exit(struct image_params *imgp); 277void mac_execve_transition(struct ucred *old, struct ucred *new, 278 struct vnode *vp, struct label *interpvnodelabel, 279 struct image_params *imgp); 280int mac_execve_will_transition(struct ucred *old, struct vnode *vp, 281 struct label *interpvnodelabel, struct image_params *imgp); 282void mac_create_proc0(struct ucred *cred); 283void mac_create_proc1(struct ucred *cred); 284void mac_thread_userret(struct thread *td); 285 286/* 287 * Label cleanup operation: This is the inverse complement for the 288 * mac_create and associate type of hooks. This hook lets the policy 289 * module(s) perform a cleanup/flushing operation on the label 290 * associated with the objects, without freeing up the space allocated. 291 * This hook is useful in cases where it is desirable to remove any 292 * labeling reference when recycling any object to a pool. This hook 293 * does not replace the mac_destroy hooks. 294 */ 295void mac_cleanup_sysv_msgmsg(struct msg *msgptr); 296void mac_cleanup_sysv_msgqueue(struct msqid_kernel *msqkptr); 297void mac_cleanup_sysv_sem(struct semid_kernel *semakptr); 298void mac_cleanup_sysv_shm(struct shmid_kernel *shmsegptr); 299 300/* Access control checks. */ 301int mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet); 302int mac_check_cred_visible(struct ucred *u1, struct ucred *u2); 303int mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *m); 304int mac_check_inpcb_deliver(struct inpcb *inp, struct mbuf *m); 305int mac_check_sysv_msgmsq(struct ucred *cred, struct msg *msgptr, 306 struct msqid_kernel *msqkptr); 307int mac_check_sysv_msgrcv(struct ucred *cred, struct msg *msgptr); 308int mac_check_sysv_msgrmid(struct ucred *cred, struct msg *msgptr); 309int mac_check_sysv_msqget(struct ucred *cred, 310 struct msqid_kernel *msqkptr); 311int mac_check_sysv_msqsnd(struct ucred *cred, 312 struct msqid_kernel *msqkptr); 313int mac_check_sysv_msqrcv(struct ucred *cred, 314 struct msqid_kernel *msqkptr); 315int mac_check_sysv_msqctl(struct ucred *cred, 316 struct msqid_kernel *msqkptr, int cmd); 317int mac_check_sysv_semctl(struct ucred *cred, 318 struct semid_kernel *semakptr, int cmd); 319int mac_check_sysv_semget(struct ucred *cred, 320 struct semid_kernel *semakptr); 321int mac_check_sysv_semop(struct ucred *cred,struct semid_kernel *semakptr, 322 size_t accesstype); 323int mac_check_sysv_shmat(struct ucred *cred, 324 struct shmid_kernel *shmsegptr, int shmflg); 325int mac_check_sysv_shmctl(struct ucred *cred, 326 struct shmid_kernel *shmsegptr, int cmd); 327int mac_check_sysv_shmdt(struct ucred *cred, 328 struct shmid_kernel *shmsegptr); 329int mac_check_sysv_shmget(struct ucred *cred, 330 struct shmid_kernel *shmsegptr, int shmflg); 331int mac_check_kenv_dump(struct ucred *cred); 332int mac_check_kenv_get(struct ucred *cred, char *name); 333int mac_check_kenv_set(struct ucred *cred, char *name, char *value); 334int mac_check_kenv_unset(struct ucred *cred, char *name); 335int mac_check_kld_load(struct ucred *cred, struct vnode *vp); 336int mac_check_kld_stat(struct ucred *cred); 337int mac_check_kld_unload(struct ucred *cred); 338int mac_check_mount_stat(struct ucred *cred, struct mount *mp); 339int mac_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp, 340 unsigned long cmd, void *data); 341int mac_check_pipe_poll(struct ucred *cred, struct pipepair *pp); 342int mac_check_pipe_read(struct ucred *cred, struct pipepair *pp); 343int mac_check_pipe_stat(struct ucred *cred, struct pipepair *pp); 344int mac_check_pipe_write(struct ucred *cred, struct pipepair *pp); 345int mac_check_posix_sem_destroy(struct ucred *cred, struct ksem *ksemptr); 346int mac_check_posix_sem_getvalue(struct ucred *cred,struct ksem *ksemptr); 347int mac_check_posix_sem_open(struct ucred *cred, struct ksem *ksemptr); 348int mac_check_posix_sem_post(struct ucred *cred, struct ksem *ksemptr); 349int mac_check_posix_sem_unlink(struct ucred *cred, struct ksem *ksemptr); 350int mac_check_posix_sem_wait(struct ucred *cred, struct ksem *ksemptr); 351int mac_check_proc_debug(struct ucred *cred, struct proc *proc); 352int mac_check_proc_sched(struct ucred *cred, struct proc *proc); 353int mac_check_proc_setuid(struct proc *proc, struct ucred *cred, 354 uid_t uid); 355int mac_check_proc_seteuid(struct proc *proc, struct ucred *cred, 356 uid_t euid); 357int mac_check_proc_setgid(struct proc *proc, struct ucred *cred, 358 gid_t gid); 359int mac_check_proc_setegid(struct proc *proc, struct ucred *cred, 360 gid_t egid); 361int mac_check_proc_setgroups(struct proc *proc, struct ucred *cred, 362 int ngroups, gid_t *gidset); 363int mac_check_proc_setreuid(struct proc *proc, struct ucred *cred, 364 uid_t ruid, uid_t euid); 365int mac_check_proc_setregid(struct proc *proc, struct ucred *cred, 366 gid_t rgid, gid_t egid); 367int mac_check_proc_setresuid(struct proc *proc, struct ucred *cred, 368 uid_t ruid, uid_t euid, uid_t suid); 369int mac_check_proc_setresgid(struct proc *proc, struct ucred *cred, 370 gid_t rgid, gid_t egid, gid_t sgid); 371int mac_check_proc_signal(struct ucred *cred, struct proc *proc, 372 int signum); 373int mac_check_proc_wait(struct ucred *cred, struct proc *proc); 374int mac_check_socket_accept(struct ucred *cred, struct socket *so); 375int mac_check_socket_bind(struct ucred *cred, struct socket *so, 376 struct sockaddr *sockaddr); 377int mac_check_socket_connect(struct ucred *cred, struct socket *so, 378 struct sockaddr *sockaddr); 379int mac_check_socket_create(struct ucred *cred, int domain, int type, 380 int protocol); 381int mac_check_socket_deliver(struct socket *so, struct mbuf *m); 382int mac_check_socket_listen(struct ucred *cred, struct socket *so); 383int mac_check_socket_poll(struct ucred *cred, struct socket *so); 384int mac_check_socket_receive(struct ucred *cred, struct socket *so); 385int mac_check_socket_send(struct ucred *cred, struct socket *so); 386int mac_check_socket_stat(struct ucred *cred, struct socket *so); 387int mac_check_socket_visible(struct ucred *cred, struct socket *so); 388int mac_check_sysarch_ioperm(struct ucred *cred); 389int mac_check_system_acct(struct ucred *cred, struct vnode *vp); 390int mac_check_system_nfsd(struct ucred *cred); 391int mac_check_system_reboot(struct ucred *cred, int howto); 392int mac_check_system_settime(struct ucred *cred); 393int mac_check_system_swapon(struct ucred *cred, struct vnode *vp); 394int mac_check_system_swapoff(struct ucred *cred, struct vnode *vp); 395int mac_check_system_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 396 void *arg1, int arg2, struct sysctl_req *req); 397int mac_check_vnode_access(struct ucred *cred, struct vnode *vp, 398 int acc_mode); 399int mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp); 400int mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp); 401int mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 402 struct componentname *cnp, struct vattr *vap); 403int mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 404 struct vnode *vp, struct componentname *cnp); 405int mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 406 acl_type_t type); 407int mac_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, 408 int attrnamespace, const char *name); 409int mac_check_vnode_exec(struct ucred *cred, struct vnode *vp, 410 struct image_params *imgp); 411int mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 412 acl_type_t type); 413int mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 414 int attrnamespace, const char *name, struct uio *uio); 415int mac_check_vnode_link(struct ucred *cred, struct vnode *dvp, 416 struct vnode *vp, struct componentname *cnp); 417int mac_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, 418 int attrnamespace); 419int mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 420 struct componentname *cnp); 421int mac_check_vnode_mmap(struct ucred *cred, struct vnode *vp, 422 int prot, int flags); 423int mac_check_vnode_mprotect(struct ucred *cred, struct vnode *vp, 424 int prot); 425int mac_check_vnode_open(struct ucred *cred, struct vnode *vp, 426 int acc_mode); 427int mac_check_vnode_poll(struct ucred *active_cred, 428 struct ucred *file_cred, struct vnode *vp); 429int mac_check_vnode_read(struct ucred *active_cred, 430 struct ucred *file_cred, struct vnode *vp); 431int mac_check_vnode_readdir(struct ucred *cred, struct vnode *vp); 432int mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp); 433int mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 434 struct vnode *vp, struct componentname *cnp); 435int mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 436 struct vnode *vp, int samedir, struct componentname *cnp); 437int mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp); 438int mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, 439 acl_type_t type, struct acl *acl); 440int mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 441 int attrnamespace, const char *name, struct uio *uio); 442int mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 443 u_long flags); 444int mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 445 mode_t mode); 446int mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 447 uid_t uid, gid_t gid); 448int mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 449 struct timespec atime, struct timespec mtime); 450int mac_check_vnode_stat(struct ucred *active_cred, 451 struct ucred *file_cred, struct vnode *vp); 452int mac_check_vnode_write(struct ucred *active_cred, 453 struct ucred *file_cred, struct vnode *vp); 454int mac_getsockopt_label(struct ucred *cred, struct socket *so, 455 struct mac *extmac); 456int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, 457 struct mac *extmac); 458int mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 459 struct ifnet *ifnet); 460int mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 461 struct ifnet *ifnet); 462int mac_setsockopt_label(struct ucred *cred, struct socket *so, 463 struct mac *extmac); 464int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, 465 struct label *label); 466void mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred); 467 468/* 469 * Calls to help various file systems implement labeling functionality 470 * using their existing EA implementation. 471 */ 472int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 473 474#endif /* !_KERNEL */ 475 476#endif /* !_SYS_MAC_H_ */ 477