1 /*- 2 * Copyright (c) 1999-2002, 2007-2011 Robert N. M. Watson 3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc. 4 * Copyright (c) 2005-2006 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 * This software was developed at the University of Cambridge Computer 18 * Laboratory with support from a grant from Google, Inc. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 */ 41 42 /* 43 * Kernel interface for Mandatory Access Control -- how kernel services 44 * interact with the TrustedBSD MAC Framework. 45 */ 46 47 #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_ 48 #define _SECURITY_MAC_MAC_FRAMEWORK_H_ 49 50 #ifndef _KERNEL 51 #error "no user-serviceable parts inside" 52 #endif 53 54 struct auditinfo; 55 struct auditinfo_addr; 56 struct bpf_d; 57 struct cdev; 58 struct componentname; 59 struct devfs_dirent; 60 struct ifnet; 61 struct ifreq; 62 struct image_params; 63 struct inpcb; 64 struct ip6q; 65 struct ipq; 66 struct kdb_dbbe; 67 struct ksem; 68 struct label; 69 struct m_tag; 70 struct mac; 71 struct mbuf; 72 struct mount; 73 struct msg; 74 struct msqid_kernel; 75 struct pipepair; 76 struct prison; 77 struct proc; 78 struct semid_kernel; 79 struct shmfd; 80 struct shmid_kernel; 81 struct sockaddr; 82 struct socket; 83 struct sysctl_oid; 84 struct sysctl_req; 85 struct thread; 86 struct timespec; 87 struct ucred; 88 struct vattr; 89 struct vfsconf; 90 struct vfsoptlist; 91 struct vnode; 92 struct vop_setlabel_args; 93 94 struct in_addr; 95 struct in6_addr; 96 97 #include <sys/acl.h> /* XXX acl_type_t */ 98 #include <sys/types.h> /* accmode_t */ 99 100 #include <ddb/ddb.h> /* db_expr_t */ 101 102 /* 103 * Entry points to the TrustedBSD MAC Framework from the remainder of the 104 * kernel: entry points are named based on a principle object type and an 105 * action relating to it. They are sorted alphabetically first by object 106 * type and then action. In some situations, the principle object type is 107 * obvious, and in other cases, less so as multiple objects may be inolved 108 * in the operation. 109 */ 110 int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp); 111 void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d); 112 void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m); 113 void mac_bpfdesc_destroy(struct bpf_d *); 114 void mac_bpfdesc_init(struct bpf_d *); 115 116 void mac_cred_associate_nfsd(struct ucred *cred); 117 int mac_cred_check_setaudit(struct ucred *cred, struct auditinfo *ai); 118 int mac_cred_check_setaudit_addr(struct ucred *cred, 119 struct auditinfo_addr *aia); 120 int mac_cred_check_setauid(struct ucred *cred, uid_t auid); 121 void mac_cred_setcred_enter(void); 122 int mac_cred_check_setcred(u_int flags, const struct ucred *old_cred, 123 struct ucred *new_cred); 124 void mac_cred_setcred_exit(void); 125 int mac_cred_check_setegid(struct ucred *cred, gid_t egid); 126 int mac_cred_check_seteuid(struct ucred *cred, uid_t euid); 127 int mac_cred_check_setgid(struct ucred *cred, gid_t gid); 128 int mac_cred_check_setgroups(struct ucred *cred, int ngroups, 129 gid_t *gidset); 130 int mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid); 131 int mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 132 gid_t sgid); 133 int mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 134 uid_t suid); 135 int mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid); 136 int mac_cred_check_setuid(struct ucred *cred, uid_t uid); 137 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2); 138 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2); 139 void mac_cred_create_init(struct ucred *cred); 140 void mac_cred_create_kproc0(struct ucred *cred); 141 void mac_cred_destroy(struct ucred *); 142 void mac_cred_init(struct ucred *); 143 144 int mac_ddb_command_register(struct db_command_table *table, 145 struct db_command *cmd); 146 int mac_ddb_command_exec(struct db_command *cmd, db_expr_t addr, 147 bool have_addr, db_expr_t count, char *modif); 148 149 void mac_devfs_create_device(struct ucred *cred, struct mount *mp, 150 struct cdev *dev, struct devfs_dirent *de); 151 void mac_devfs_create_directory(struct mount *mp, char *dirname, 152 int dirnamelen, struct devfs_dirent *de); 153 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp, 154 struct devfs_dirent *dd, struct devfs_dirent *de); 155 void mac_devfs_destroy(struct devfs_dirent *); 156 void mac_devfs_init(struct devfs_dirent *); 157 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de, 158 struct vnode *vp); 159 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de, 160 struct vnode *vp); 161 162 int mac_ifnet_check_transmit_impl(struct ifnet *ifp, struct mbuf *m); 163 #ifdef MAC 164 extern bool mac_ifnet_check_transmit_fp_flag; 165 #else 166 #define mac_ifnet_check_transmit_fp_flag false 167 #endif 168 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag) 169 static inline int 170 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m) 171 { 172 173 if (mac_ifnet_check_transmit_enabled()) 174 return (mac_ifnet_check_transmit_impl(ifp, m)); 175 return (0); 176 } 177 178 void mac_ifnet_create(struct ifnet *ifp); 179 180 void mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m); 181 #ifdef MAC 182 extern bool mac_ifnet_create_mbuf_fp_flag; 183 #else 184 #define mac_ifnet_create_mbuf_fp_flag false 185 #endif 186 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag) 187 static inline void 188 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m) 189 { 190 191 if (mac_ifnet_create_mbuf_enabled()) 192 mac_ifnet_create_mbuf_impl(ifp, m); 193 } 194 195 void mac_ifnet_destroy(struct ifnet *); 196 void mac_ifnet_init(struct ifnet *); 197 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr, 198 struct ifnet *ifp); 199 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr, 200 struct ifnet *ifp); 201 202 /* Check if the IP address is allowed for the interface. */ 203 int mac_inet_check_add_addr(struct ucred *cred, 204 const struct in_addr *ia, struct ifnet *ifp); 205 int mac_inet6_check_add_addr(struct ucred *cred, 206 const struct in6_addr *ia6, struct ifnet *ifp); 207 208 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m); 209 int mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp); 210 void mac_inpcb_create(struct socket *so, struct inpcb *inp); 211 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m); 212 void mac_inpcb_destroy(struct inpcb *); 213 int mac_inpcb_init(struct inpcb *, int); 214 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); 215 216 void mac_ip6q_create(struct mbuf *m, struct ip6q *q6); 217 void mac_ip6q_destroy(struct ip6q *q6); 218 int mac_ip6q_init(struct ip6q *q6, int); 219 int mac_ip6q_match(struct mbuf *m, struct ip6q *q6); 220 void mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m); 221 void mac_ip6q_update(struct mbuf *m, struct ip6q *q6); 222 223 void mac_ipq_create(struct mbuf *m, struct ipq *q); 224 void mac_ipq_destroy(struct ipq *q); 225 int mac_ipq_init(struct ipq *q, int); 226 int mac_ipq_match(struct mbuf *m, struct ipq *q); 227 void mac_ipq_reassemble(struct ipq *q, struct mbuf *m); 228 void mac_ipq_update(struct mbuf *m, struct ipq *q); 229 230 int mac_kdb_check_backend(struct kdb_dbbe *be); 231 int mac_kdb_grant_backend(struct kdb_dbbe *be); 232 233 int mac_kenv_check_dump(struct ucred *cred); 234 int mac_kenv_check_get(struct ucred *cred, char *name); 235 int mac_kenv_check_set(struct ucred *cred, char *name, char *value); 236 int mac_kenv_check_unset(struct ucred *cred, char *name); 237 238 int mac_kld_check_load(struct ucred *cred, struct vnode *vp); 239 int mac_kld_check_stat(struct ucred *cred); 240 241 void mac_mbuf_copy(struct mbuf *, struct mbuf *); 242 int mac_mbuf_init(struct mbuf *, int); 243 244 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *); 245 void mac_mbuf_tag_destroy(struct m_tag *); 246 int mac_mbuf_tag_init(struct m_tag *, int); 247 248 int mac_mount_check_stat(struct ucred *cred, struct mount *mp); 249 void mac_mount_create(struct ucred *cred, struct mount *mp); 250 void mac_mount_destroy(struct mount *); 251 void mac_mount_init(struct mount *); 252 int mac_mount_check_mount(struct ucred *cred, struct vnode *vp, 253 struct vfsconf *, struct vfsoptlist **optlist, uint64_t fsflags); 254 int mac_mount_check_update(struct ucred *cred, struct mount *mp, 255 struct vfsoptlist **optlist, uint64_t fsflags); 256 int mac_mount_check_unmount(struct ucred *cred, struct mount *mp, 257 uint64_t flags); 258 259 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m); 260 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend); 261 void mac_netinet_firewall_send(struct mbuf *m); 262 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag); 263 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend); 264 void mac_netinet_icmp_replyinplace(struct mbuf *m); 265 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m); 266 void mac_netinet_tcp_reply(struct mbuf *m); 267 268 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m); 269 270 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, 271 unsigned long cmd, void *data); 272 int mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp); 273 #ifdef MAC 274 extern bool mac_pipe_check_poll_fp_flag; 275 #else 276 #define mac_pipe_check_poll_fp_flag false 277 #endif 278 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag) 279 static inline int 280 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp) 281 { 282 283 if (mac_pipe_check_poll_enabled()) 284 return (mac_pipe_check_poll_impl(cred, pp)); 285 return (0); 286 } 287 288 #ifdef MAC 289 extern bool mac_pipe_check_stat_fp_flag; 290 #else 291 #define mac_pipe_check_stat_fp_flag false 292 #endif 293 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag) 294 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp); 295 int mac_pipe_check_read_impl(struct ucred *cred, struct pipepair *pp); 296 #ifdef MAC 297 extern bool mac_pipe_check_read_fp_flag; 298 #else 299 #define mac_pipe_check_read_fp_flag false 300 #endif 301 #define mac_pipe_check_read_enabled() __predict_false(mac_pipe_check_read_fp_flag) 302 static inline int 303 mac_pipe_check_read(struct ucred *cred, struct pipepair *pp) 304 { 305 306 if (mac_pipe_check_read_enabled()) 307 return (mac_pipe_check_read_impl(cred, pp)); 308 return (0); 309 } 310 311 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp); 312 void mac_pipe_create(struct ucred *cred, struct pipepair *pp); 313 void mac_pipe_destroy(struct pipepair *); 314 void mac_pipe_init(struct pipepair *); 315 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, 316 struct label *label); 317 318 int mac_posixsem_check_getvalue(struct ucred *active_cred, 319 struct ucred *file_cred, struct ksem *ks); 320 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks); 321 int mac_posixsem_check_post(struct ucred *active_cred, 322 struct ucred *file_cred, struct ksem *ks); 323 int mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks, 324 mode_t mode); 325 int mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks, 326 uid_t uid, gid_t gid); 327 int mac_posixsem_check_stat(struct ucred *active_cred, 328 struct ucred *file_cred, struct ksem *ks); 329 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks); 330 int mac_posixsem_check_wait(struct ucred *active_cred, 331 struct ucred *file_cred, struct ksem *ks); 332 void mac_posixsem_create(struct ucred *cred, struct ksem *ks); 333 void mac_posixsem_destroy(struct ksem *); 334 void mac_posixsem_init(struct ksem *); 335 336 int mac_posixshm_check_create(struct ucred *cred, const char *path); 337 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, 338 int prot, int flags); 339 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd, 340 accmode_t accmode); 341 int mac_posixshm_check_read(struct ucred *active_cred, 342 struct ucred *file_cred, struct shmfd *shmfd); 343 int mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd, 344 mode_t mode); 345 int mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd, 346 uid_t uid, gid_t gid); 347 int mac_posixshm_check_stat(struct ucred *active_cred, 348 struct ucred *file_cred, struct shmfd *shmfd); 349 int mac_posixshm_check_truncate(struct ucred *active_cred, 350 struct ucred *file_cred, struct shmfd *shmfd); 351 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd); 352 int mac_posixshm_check_write(struct ucred *active_cred, 353 struct ucred *file_cred, struct shmfd *shmfd); 354 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd); 355 void mac_posixshm_destroy(struct shmfd *); 356 void mac_posixshm_init(struct shmfd *); 357 358 int mac_prison_init(struct prison *pr, int flag); 359 void mac_prison_relabel(struct ucred *cred, struct prison *pr, 360 struct label *newlabel); 361 void mac_prison_destroy(struct prison *pr); 362 int mac_prison_check_attach(struct ucred *cred, struct prison *pr); 363 int mac_prison_check_create(struct ucred *cred, struct vfsoptlist *opts, 364 int flags); 365 int mac_prison_check_get(struct ucred *cred, struct prison *pr, 366 struct vfsoptlist *opts, int flags); 367 int mac_prison_check_set(struct ucred *cred, struct prison *pr, 368 struct vfsoptlist *opts, int flags); 369 int mac_prison_check_remove(struct ucred *cred, struct prison *pr); 370 void mac_prison_created(struct ucred *cred, struct prison *pr); 371 void mac_prison_attached(struct ucred *cred, struct prison *pr, 372 struct proc *p); 373 374 int mac_priv_check_impl(struct ucred *cred, int priv); 375 #ifdef MAC 376 extern bool mac_priv_check_fp_flag; 377 #else 378 #define mac_priv_check_fp_flag false 379 #endif 380 #define mac_priv_check_enabled() __predict_false(mac_priv_check_fp_flag) 381 static inline int 382 mac_priv_check(struct ucred *cred, int priv) 383 { 384 385 if (mac_priv_check_enabled()) 386 return (mac_priv_check_impl(cred, priv)); 387 return (0); 388 } 389 390 int mac_priv_grant_impl(struct ucred *cred, int priv); 391 #ifdef MAC 392 extern bool mac_priv_grant_fp_flag; 393 #else 394 #define mac_priv_grant_fp_flag false 395 #endif 396 #define mac_priv_grant_enabled() __predict_false(mac_priv_grant_fp_flag) 397 static inline int 398 mac_priv_grant(struct ucred *cred, int priv) 399 { 400 401 if (mac_priv_grant_enabled()) 402 return (mac_priv_grant_impl(cred, priv)); 403 return (EPERM); 404 } 405 406 int mac_proc_check_debug(struct ucred *cred, struct proc *p); 407 int mac_proc_check_sched(struct ucred *cred, struct proc *p); 408 int mac_proc_check_signal(struct ucred *cred, struct proc *p, 409 int signum); 410 int mac_proc_check_wait(struct ucred *cred, struct proc *p); 411 void mac_proc_destroy(struct proc *); 412 void mac_proc_init(struct proc *); 413 void mac_proc_vm_revoke(struct thread *td); 414 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); 415 void mac_execve_exit(struct image_params *imgp); 416 void mac_execve_interpreter_enter(struct vnode *interpvp, 417 struct label **interplabel); 418 void mac_execve_interpreter_exit(struct label *interpvplabel); 419 420 int mac_socket_check_accept(struct ucred *cred, struct socket *so); 421 int mac_socket_check_bind(struct ucred *cred, struct socket *so, 422 struct sockaddr *sa); 423 int mac_socket_check_connect(struct ucred *cred, struct socket *so, 424 struct sockaddr *sa); 425 int mac_socket_check_create(struct ucred *cred, int domain, int type, 426 int proto); 427 int mac_socket_check_deliver(struct socket *so, struct mbuf *m); 428 int mac_socket_check_listen(struct ucred *cred, struct socket *so); 429 int mac_socket_check_poll(struct ucred *cred, struct socket *so); 430 int mac_socket_check_receive(struct ucred *cred, struct socket *so); 431 int mac_socket_check_send(struct ucred *cred, struct socket *so); 432 int mac_socket_check_stat(struct ucred *cred, struct socket *so); 433 int mac_socket_check_visible(struct ucred *cred, struct socket *so); 434 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m); 435 void mac_socket_create(struct ucred *cred, struct socket *so); 436 void mac_socket_destroy(struct socket *); 437 int mac_socket_init(struct socket *, int); 438 void mac_socket_newconn(struct socket *oldso, struct socket *newso); 439 int mac_getsockopt_label(struct ucred *cred, struct socket *so, 440 const struct mac *extmac); 441 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, 442 const struct mac *extmac); 443 int mac_setsockopt_label(struct ucred *cred, struct socket *so, 444 const struct mac *extmac); 445 446 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so); 447 void mac_socketpeer_set_from_socket(struct socket *oldso, 448 struct socket *newso); 449 450 void mac_syncache_create(struct label *l, struct inpcb *inp); 451 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m); 452 void mac_syncache_destroy(struct label **l); 453 int mac_syncache_init(struct label **l); 454 455 int mac_system_check_acct(struct ucred *cred, struct vnode *vp); 456 int mac_system_check_audit(struct ucred *cred, void *record, int length); 457 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp); 458 int mac_system_check_auditon(struct ucred *cred, int cmd); 459 int mac_system_check_reboot(struct ucred *cred, int howto); 460 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp); 461 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp); 462 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 463 void *arg1, int arg2, struct sysctl_req *req); 464 465 void mac_sysvmsg_cleanup(struct msg *msgptr); 466 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, 467 struct msg *msgptr); 468 void mac_sysvmsg_destroy(struct msg *); 469 void mac_sysvmsg_init(struct msg *); 470 471 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, 472 struct msqid_kernel *msqkptr); 473 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr); 474 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr); 475 int mac_sysvmsq_check_msqctl(struct ucred *cred, 476 struct msqid_kernel *msqkptr, int cmd); 477 int mac_sysvmsq_check_msqget(struct ucred *cred, 478 struct msqid_kernel *msqkptr); 479 int mac_sysvmsq_check_msqrcv(struct ucred *cred, 480 struct msqid_kernel *msqkptr); 481 int mac_sysvmsq_check_msqsnd(struct ucred *cred, 482 struct msqid_kernel *msqkptr); 483 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr); 484 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr); 485 void mac_sysvmsq_destroy(struct msqid_kernel *); 486 void mac_sysvmsq_init(struct msqid_kernel *); 487 488 int mac_sysvsem_check_semctl(struct ucred *cred, 489 struct semid_kernel *semakptr, int cmd); 490 int mac_sysvsem_check_semget(struct ucred *cred, 491 struct semid_kernel *semakptr); 492 int mac_sysvsem_check_semop(struct ucred *cred, 493 struct semid_kernel *semakptr, size_t accesstype); 494 void mac_sysvsem_cleanup(struct semid_kernel *semakptr); 495 void mac_sysvsem_create(struct ucred *cred, 496 struct semid_kernel *semakptr); 497 void mac_sysvsem_destroy(struct semid_kernel *); 498 void mac_sysvsem_init(struct semid_kernel *); 499 500 int mac_sysvshm_check_shmat(struct ucred *cred, 501 struct shmid_kernel *shmsegptr, int shmflg); 502 int mac_sysvshm_check_shmctl(struct ucred *cred, 503 struct shmid_kernel *shmsegptr, int cmd); 504 int mac_sysvshm_check_shmdt(struct ucred *cred, 505 struct shmid_kernel *shmsegptr); 506 int mac_sysvshm_check_shmget(struct ucred *cred, 507 struct shmid_kernel *shmsegptr, int shmflg); 508 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr); 509 void mac_sysvshm_create(struct ucred *cred, 510 struct shmid_kernel *shmsegptr); 511 void mac_sysvshm_destroy(struct shmid_kernel *); 512 void mac_sysvshm_init(struct shmid_kernel *); 513 514 void mac_thread_userret(struct thread *td); 515 516 #if defined(MAC) && defined(INVARIANTS) 517 void mac_vnode_assert_locked(struct vnode *vp, const char *func); 518 #else 519 #define mac_vnode_assert_locked(vp, func) do { } while (0) 520 #endif 521 522 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp); 523 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp); 524 int mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp, 525 accmode_t accmode); 526 extern bool mac_vnode_check_access_fp_flag; 527 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag) 528 static inline int 529 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp, 530 accmode_t accmode) 531 { 532 533 mac_vnode_assert_locked(dvp, "mac_vnode_check_access"); 534 if (mac_vnode_check_access_enabled()) 535 return (mac_vnode_check_access_impl(cred, dvp, accmode)); 536 return (0); 537 } 538 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp); 539 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp); 540 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp, 541 struct componentname *cnp, struct vattr *vap); 542 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, 543 acl_type_t type); 544 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, 545 int attrnamespace, const char *name); 546 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp, 547 struct image_params *imgp); 548 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp, 549 acl_type_t type); 550 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, 551 int attrnamespace, const char *name); 552 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp, 553 struct vnode *vp, struct componentname *cnp); 554 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, 555 int attrnamespace); 556 557 int mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp, 558 struct componentname *cnp); 559 #ifdef MAC 560 extern bool mac_vnode_check_lookup_fp_flag; 561 #else 562 #define mac_vnode_check_lookup_fp_flag false 563 #endif 564 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag) 565 static inline int 566 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, 567 struct componentname *cnp) 568 { 569 570 mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup"); 571 if (mac_vnode_check_lookup_enabled()) 572 return (mac_vnode_check_lookup_impl(cred, dvp, cnp)); 573 return (0); 574 } 575 576 int mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot, 577 int flags); 578 #ifdef MAC 579 extern bool mac_vnode_check_mmap_fp_flag; 580 #else 581 #define mac_vnode_check_mmap_fp_flag false 582 #endif 583 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag) 584 static inline int 585 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot, 586 int flags) 587 { 588 589 mac_vnode_assert_locked(vp, "mac_vnode_check_mmap"); 590 if (mac_vnode_check_mmap_enabled()) 591 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags)); 592 return (0); 593 } 594 595 int mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp, 596 accmode_t accmode); 597 #ifdef MAC 598 extern bool mac_vnode_check_open_fp_flag; 599 #else 600 #define mac_vnode_check_open_fp_flag false 601 #endif 602 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag) 603 static inline int 604 mac_vnode_check_open(struct ucred *cred, struct vnode *vp, 605 accmode_t accmode) 606 { 607 608 mac_vnode_assert_locked(vp, "mac_vnode_check_open"); 609 if (mac_vnode_check_open_enabled()) 610 return (mac_vnode_check_open_impl(cred, vp, accmode)); 611 return (0); 612 } 613 614 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, 615 int prot); 616 617 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag) 618 #ifdef MAC 619 extern bool mac_vnode_check_poll_fp_flag; 620 int mac_vnode_check_poll(struct ucred *active_cred, 621 struct ucred *file_cred, struct vnode *vp); 622 #else 623 #define mac_vnode_check_poll_fp_flag false 624 static inline int 625 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, 626 struct vnode *vp) 627 { 628 629 return (0); 630 } 631 #endif 632 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp); 633 int mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp); 634 #ifdef MAC 635 extern bool mac_vnode_check_readlink_fp_flag; 636 #else 637 #define mac_vnode_check_readlink_fp_flag false 638 #endif 639 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag) 640 static inline int 641 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp) 642 { 643 644 mac_vnode_assert_locked(vp, "mac_vnode_check_readlink"); 645 if (mac_vnode_check_readlink_enabled()) 646 return (mac_vnode_check_readlink_impl(cred, vp)); 647 return (0); 648 } 649 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag) 650 #ifdef MAC 651 extern bool mac_vnode_check_rename_from_fp_flag; 652 #endif 653 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, 654 struct vnode *vp, struct componentname *cnp); 655 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, 656 struct vnode *vp, int samedir, struct componentname *cnp); 657 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp); 658 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp, 659 acl_type_t type, struct acl *acl); 660 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, 661 int attrnamespace, const char *name); 662 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp, 663 u_long flags); 664 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp, 665 mode_t mode); 666 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp, 667 uid_t uid, gid_t gid); 668 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, 669 struct timespec atime, struct timespec mtime); 670 671 int mac_vnode_check_stat_impl(struct ucred *active_cred, 672 struct ucred *file_cred, struct vnode *vp); 673 #ifdef MAC 674 extern bool mac_vnode_check_stat_fp_flag; 675 #else 676 #define mac_vnode_check_stat_fp_flag false 677 #endif 678 #define mac_vnode_check_stat_enabled() __predict_false(mac_vnode_check_stat_fp_flag) 679 static inline int 680 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, 681 struct vnode *vp) 682 { 683 684 mac_vnode_assert_locked(vp, "mac_vnode_check_stat"); 685 if (mac_vnode_check_stat_enabled()) 686 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp)); 687 return (0); 688 } 689 690 int mac_vnode_check_read_impl(struct ucred *active_cred, 691 struct ucred *file_cred, struct vnode *vp); 692 #ifdef MAC 693 extern bool mac_vnode_check_read_fp_flag; 694 #else 695 #define mac_vnode_check_read_fp_flag false 696 #endif 697 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag) 698 static inline int 699 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, 700 struct vnode *vp) 701 { 702 703 mac_vnode_assert_locked(vp, "mac_vnode_check_read"); 704 if (mac_vnode_check_read_enabled()) 705 return (mac_vnode_check_read_impl(active_cred, file_cred, vp)); 706 return (0); 707 } 708 709 int mac_vnode_check_write_impl(struct ucred *active_cred, 710 struct ucred *file_cred, struct vnode *vp); 711 #ifdef MAC 712 extern bool mac_vnode_check_write_fp_flag; 713 #else 714 #define mac_vnode_check_write_fp_flag false 715 #endif 716 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag) 717 static inline int 718 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, 719 struct vnode *vp) 720 { 721 722 mac_vnode_assert_locked(vp, "mac_vnode_check_write"); 723 if (mac_vnode_check_write_enabled()) 724 return (mac_vnode_check_write_impl(active_cred, file_cred, vp)); 725 return (0); 726 } 727 728 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, 729 struct vnode *vp, struct componentname *cnp); 730 void mac_vnode_copy_label(struct label *, struct label *); 731 void mac_vnode_init(struct vnode *); 732 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp, 733 struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 734 void mac_vnode_destroy(struct vnode *); 735 void mac_vnode_execve_transition(struct ucred *oldcred, 736 struct ucred *newcred, struct vnode *vp, 737 struct label *interpvplabel, struct image_params *imgp); 738 int mac_vnode_execve_will_transition(struct ucred *cred, 739 struct vnode *vp, struct label *interpvplabel, 740 struct image_params *imgp); 741 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp, 742 struct label *newlabel); 743 744 /* 745 * Calls to help various file systems implement labeling functionality using 746 * their existing EA implementation. 747 */ 748 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 749 750 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */ 751