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