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 proc; 76 struct semid_kernel; 77 struct shmfd; 78 struct shmid_kernel; 79 struct sockaddr; 80 struct socket; 81 struct sysctl_oid; 82 struct sysctl_req; 83 struct pipepair; 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 int mac_cred_check_setegid(struct ucred *cred, gid_t egid); 119 int mac_cred_check_seteuid(struct ucred *cred, uid_t euid); 120 int mac_cred_check_setgid(struct ucred *cred, gid_t gid); 121 int mac_cred_check_setgroups(struct ucred *cred, int ngroups, 122 gid_t *gidset); 123 int mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid); 124 int mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 125 gid_t sgid); 126 int mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 127 uid_t suid); 128 int mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid); 129 int mac_cred_check_setuid(struct ucred *cred, uid_t uid); 130 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2); 131 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2); 132 void mac_cred_create_init(struct ucred *cred); 133 void mac_cred_create_swapper(struct ucred *cred); 134 void mac_cred_destroy(struct ucred *); 135 void mac_cred_init(struct ucred *); 136 137 int mac_ddb_command_register(struct db_command_table *table, 138 struct db_command *cmd); 139 int mac_ddb_command_exec(struct db_command *cmd, db_expr_t addr, 140 bool have_addr, db_expr_t count, char *modif); 141 142 void mac_devfs_create_device(struct ucred *cred, struct mount *mp, 143 struct cdev *dev, struct devfs_dirent *de); 144 void mac_devfs_create_directory(struct mount *mp, char *dirname, 145 int dirnamelen, struct devfs_dirent *de); 146 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp, 147 struct devfs_dirent *dd, struct devfs_dirent *de); 148 void mac_devfs_destroy(struct devfs_dirent *); 149 void mac_devfs_init(struct devfs_dirent *); 150 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de, 151 struct vnode *vp); 152 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de, 153 struct vnode *vp); 154 155 int mac_ifnet_check_transmit_impl(struct ifnet *ifp, struct mbuf *m); 156 #ifdef MAC 157 extern bool mac_ifnet_check_transmit_fp_flag; 158 #else 159 #define mac_ifnet_check_transmit_fp_flag false 160 #endif 161 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag) 162 static inline int 163 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m) 164 { 165 166 if (mac_ifnet_check_transmit_enabled()) 167 return (mac_ifnet_check_transmit_impl(ifp, m)); 168 return (0); 169 } 170 171 void mac_ifnet_create(struct ifnet *ifp); 172 173 void mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m); 174 #ifdef MAC 175 extern bool mac_ifnet_create_mbuf_fp_flag; 176 #else 177 #define mac_ifnet_create_mbuf_fp_flag false 178 #endif 179 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag) 180 static inline void 181 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m) 182 { 183 184 if (mac_ifnet_create_mbuf_enabled()) 185 mac_ifnet_create_mbuf_impl(ifp, m); 186 } 187 188 void mac_ifnet_destroy(struct ifnet *); 189 void mac_ifnet_init(struct ifnet *); 190 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr, 191 struct ifnet *ifp); 192 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr, 193 struct ifnet *ifp); 194 195 /* Check if the IP address is allowed for the interface. */ 196 int mac_inet_check_add_addr(struct ucred *cred, 197 const struct in_addr *ia, struct ifnet *ifp); 198 int mac_inet6_check_add_addr(struct ucred *cred, 199 const struct in6_addr *ia6, struct ifnet *ifp); 200 201 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m); 202 int mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp); 203 void mac_inpcb_create(struct socket *so, struct inpcb *inp); 204 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m); 205 void mac_inpcb_destroy(struct inpcb *); 206 int mac_inpcb_init(struct inpcb *, int); 207 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); 208 209 void mac_ip6q_create(struct mbuf *m, struct ip6q *q6); 210 void mac_ip6q_destroy(struct ip6q *q6); 211 int mac_ip6q_init(struct ip6q *q6, int); 212 int mac_ip6q_match(struct mbuf *m, struct ip6q *q6); 213 void mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m); 214 void mac_ip6q_update(struct mbuf *m, struct ip6q *q6); 215 216 void mac_ipq_create(struct mbuf *m, struct ipq *q); 217 void mac_ipq_destroy(struct ipq *q); 218 int mac_ipq_init(struct ipq *q, int); 219 int mac_ipq_match(struct mbuf *m, struct ipq *q); 220 void mac_ipq_reassemble(struct ipq *q, struct mbuf *m); 221 void mac_ipq_update(struct mbuf *m, struct ipq *q); 222 223 int mac_kdb_check_backend(struct kdb_dbbe *be); 224 int mac_kdb_grant_backend(struct kdb_dbbe *be); 225 226 int mac_kenv_check_dump(struct ucred *cred); 227 int mac_kenv_check_get(struct ucred *cred, char *name); 228 int mac_kenv_check_set(struct ucred *cred, char *name, char *value); 229 int mac_kenv_check_unset(struct ucred *cred, char *name); 230 231 int mac_kld_check_load(struct ucred *cred, struct vnode *vp); 232 int mac_kld_check_stat(struct ucred *cred); 233 234 void mac_mbuf_copy(struct mbuf *, struct mbuf *); 235 int mac_mbuf_init(struct mbuf *, int); 236 237 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *); 238 void mac_mbuf_tag_destroy(struct m_tag *); 239 int mac_mbuf_tag_init(struct m_tag *, int); 240 241 int mac_mount_check_stat(struct ucred *cred, struct mount *mp); 242 void mac_mount_create(struct ucred *cred, struct mount *mp); 243 void mac_mount_destroy(struct mount *); 244 void mac_mount_init(struct mount *); 245 246 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m); 247 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend); 248 void mac_netinet_firewall_send(struct mbuf *m); 249 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag); 250 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend); 251 void mac_netinet_icmp_replyinplace(struct mbuf *m); 252 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m); 253 void mac_netinet_tcp_reply(struct mbuf *m); 254 255 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m); 256 257 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, 258 unsigned long cmd, void *data); 259 int mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp); 260 #ifdef MAC 261 extern bool mac_pipe_check_poll_fp_flag; 262 #else 263 #define mac_pipe_check_poll_fp_flag false 264 #endif 265 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag) 266 static inline int 267 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp) 268 { 269 270 if (mac_pipe_check_poll_enabled()) 271 return (mac_pipe_check_poll_impl(cred, pp)); 272 return (0); 273 } 274 275 #ifdef MAC 276 extern bool mac_pipe_check_stat_fp_flag; 277 #else 278 #define mac_pipe_check_stat_fp_flag false 279 #endif 280 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag) 281 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp); 282 int mac_pipe_check_read_impl(struct ucred *cred, struct pipepair *pp); 283 #ifdef MAC 284 extern bool mac_pipe_check_read_fp_flag; 285 #else 286 #define mac_pipe_check_read_fp_flag false 287 #endif 288 #define mac_pipe_check_read_enabled() __predict_false(mac_pipe_check_read_fp_flag) 289 static inline int 290 mac_pipe_check_read(struct ucred *cred, struct pipepair *pp) 291 { 292 293 if (mac_pipe_check_read_enabled()) 294 return (mac_pipe_check_read_impl(cred, pp)); 295 return (0); 296 } 297 298 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp); 299 void mac_pipe_create(struct ucred *cred, struct pipepair *pp); 300 void mac_pipe_destroy(struct pipepair *); 301 void mac_pipe_init(struct pipepair *); 302 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, 303 struct label *label); 304 305 int mac_posixsem_check_getvalue(struct ucred *active_cred, 306 struct ucred *file_cred, struct ksem *ks); 307 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks); 308 int mac_posixsem_check_post(struct ucred *active_cred, 309 struct ucred *file_cred, struct ksem *ks); 310 int mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks, 311 mode_t mode); 312 int mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks, 313 uid_t uid, gid_t gid); 314 int mac_posixsem_check_stat(struct ucred *active_cred, 315 struct ucred *file_cred, struct ksem *ks); 316 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks); 317 int mac_posixsem_check_wait(struct ucred *active_cred, 318 struct ucred *file_cred, struct ksem *ks); 319 void mac_posixsem_create(struct ucred *cred, struct ksem *ks); 320 void mac_posixsem_destroy(struct ksem *); 321 void mac_posixsem_init(struct ksem *); 322 323 int mac_posixshm_check_create(struct ucred *cred, const char *path); 324 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, 325 int prot, int flags); 326 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd, 327 accmode_t accmode); 328 int mac_posixshm_check_read(struct ucred *active_cred, 329 struct ucred *file_cred, struct shmfd *shmfd); 330 int mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd, 331 mode_t mode); 332 int mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd, 333 uid_t uid, gid_t gid); 334 int mac_posixshm_check_stat(struct ucred *active_cred, 335 struct ucred *file_cred, struct shmfd *shmfd); 336 int mac_posixshm_check_truncate(struct ucred *active_cred, 337 struct ucred *file_cred, struct shmfd *shmfd); 338 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd); 339 int mac_posixshm_check_write(struct ucred *active_cred, 340 struct ucred *file_cred, struct shmfd *shmfd); 341 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd); 342 void mac_posixshm_destroy(struct shmfd *); 343 void mac_posixshm_init(struct shmfd *); 344 345 int mac_priv_check_impl(struct ucred *cred, int priv); 346 #ifdef MAC 347 extern bool mac_priv_check_fp_flag; 348 #else 349 #define mac_priv_check_fp_flag false 350 #endif 351 #define mac_priv_check_enabled() __predict_false(mac_priv_check_fp_flag) 352 static inline int 353 mac_priv_check(struct ucred *cred, int priv) 354 { 355 356 if (mac_priv_check_enabled()) 357 return (mac_priv_check_impl(cred, priv)); 358 return (0); 359 } 360 361 int mac_priv_grant_impl(struct ucred *cred, int priv); 362 #ifdef MAC 363 extern bool mac_priv_grant_fp_flag; 364 #else 365 #define mac_priv_grant_fp_flag false 366 #endif 367 #define mac_priv_grant_enabled() __predict_false(mac_priv_grant_fp_flag) 368 static inline int 369 mac_priv_grant(struct ucred *cred, int priv) 370 { 371 372 if (mac_priv_grant_enabled()) 373 return (mac_priv_grant_impl(cred, priv)); 374 return (EPERM); 375 } 376 377 int mac_proc_check_debug(struct ucred *cred, struct proc *p); 378 int mac_proc_check_sched(struct ucred *cred, struct proc *p); 379 int mac_proc_check_signal(struct ucred *cred, struct proc *p, 380 int signum); 381 int mac_proc_check_wait(struct ucred *cred, struct proc *p); 382 void mac_proc_destroy(struct proc *); 383 void mac_proc_init(struct proc *); 384 void mac_proc_vm_revoke(struct thread *td); 385 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); 386 void mac_execve_exit(struct image_params *imgp); 387 void mac_execve_interpreter_enter(struct vnode *interpvp, 388 struct label **interplabel); 389 void mac_execve_interpreter_exit(struct label *interpvplabel); 390 391 int mac_socket_check_accept(struct ucred *cred, struct socket *so); 392 int mac_socket_check_bind(struct ucred *cred, struct socket *so, 393 struct sockaddr *sa); 394 int mac_socket_check_connect(struct ucred *cred, struct socket *so, 395 struct sockaddr *sa); 396 int mac_socket_check_create(struct ucred *cred, int domain, int type, 397 int proto); 398 int mac_socket_check_deliver(struct socket *so, struct mbuf *m); 399 int mac_socket_check_listen(struct ucred *cred, struct socket *so); 400 int mac_socket_check_poll(struct ucred *cred, struct socket *so); 401 int mac_socket_check_receive(struct ucred *cred, struct socket *so); 402 int mac_socket_check_send(struct ucred *cred, struct socket *so); 403 int mac_socket_check_stat(struct ucred *cred, struct socket *so); 404 int mac_socket_check_visible(struct ucred *cred, struct socket *so); 405 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m); 406 void mac_socket_create(struct ucred *cred, struct socket *so); 407 void mac_socket_destroy(struct socket *); 408 int mac_socket_init(struct socket *, int); 409 void mac_socket_newconn(struct socket *oldso, struct socket *newso); 410 int mac_getsockopt_label(struct ucred *cred, struct socket *so, 411 const struct mac *extmac); 412 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, 413 const struct mac *extmac); 414 int mac_setsockopt_label(struct ucred *cred, struct socket *so, 415 const struct mac *extmac); 416 417 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so); 418 void mac_socketpeer_set_from_socket(struct socket *oldso, 419 struct socket *newso); 420 421 void mac_syncache_create(struct label *l, struct inpcb *inp); 422 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m); 423 void mac_syncache_destroy(struct label **l); 424 int mac_syncache_init(struct label **l); 425 426 int mac_system_check_acct(struct ucred *cred, struct vnode *vp); 427 int mac_system_check_audit(struct ucred *cred, void *record, int length); 428 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp); 429 int mac_system_check_auditon(struct ucred *cred, int cmd); 430 int mac_system_check_reboot(struct ucred *cred, int howto); 431 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp); 432 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp); 433 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 434 void *arg1, int arg2, struct sysctl_req *req); 435 436 void mac_sysvmsg_cleanup(struct msg *msgptr); 437 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, 438 struct msg *msgptr); 439 void mac_sysvmsg_destroy(struct msg *); 440 void mac_sysvmsg_init(struct msg *); 441 442 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, 443 struct msqid_kernel *msqkptr); 444 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr); 445 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr); 446 int mac_sysvmsq_check_msqctl(struct ucred *cred, 447 struct msqid_kernel *msqkptr, int cmd); 448 int mac_sysvmsq_check_msqget(struct ucred *cred, 449 struct msqid_kernel *msqkptr); 450 int mac_sysvmsq_check_msqrcv(struct ucred *cred, 451 struct msqid_kernel *msqkptr); 452 int mac_sysvmsq_check_msqsnd(struct ucred *cred, 453 struct msqid_kernel *msqkptr); 454 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr); 455 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr); 456 void mac_sysvmsq_destroy(struct msqid_kernel *); 457 void mac_sysvmsq_init(struct msqid_kernel *); 458 459 int mac_sysvsem_check_semctl(struct ucred *cred, 460 struct semid_kernel *semakptr, int cmd); 461 int mac_sysvsem_check_semget(struct ucred *cred, 462 struct semid_kernel *semakptr); 463 int mac_sysvsem_check_semop(struct ucred *cred, 464 struct semid_kernel *semakptr, size_t accesstype); 465 void mac_sysvsem_cleanup(struct semid_kernel *semakptr); 466 void mac_sysvsem_create(struct ucred *cred, 467 struct semid_kernel *semakptr); 468 void mac_sysvsem_destroy(struct semid_kernel *); 469 void mac_sysvsem_init(struct semid_kernel *); 470 471 int mac_sysvshm_check_shmat(struct ucred *cred, 472 struct shmid_kernel *shmsegptr, int shmflg); 473 int mac_sysvshm_check_shmctl(struct ucred *cred, 474 struct shmid_kernel *shmsegptr, int cmd); 475 int mac_sysvshm_check_shmdt(struct ucred *cred, 476 struct shmid_kernel *shmsegptr); 477 int mac_sysvshm_check_shmget(struct ucred *cred, 478 struct shmid_kernel *shmsegptr, int shmflg); 479 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr); 480 void mac_sysvshm_create(struct ucred *cred, 481 struct shmid_kernel *shmsegptr); 482 void mac_sysvshm_destroy(struct shmid_kernel *); 483 void mac_sysvshm_init(struct shmid_kernel *); 484 485 void mac_thread_userret(struct thread *td); 486 487 #if defined(MAC) && defined(DEBUG_VFS_LOCKS) 488 void mac_vnode_assert_locked(struct vnode *vp, const char *func); 489 #else 490 #define mac_vnode_assert_locked(vp, func) do { } while (0) 491 #endif 492 493 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp); 494 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp); 495 int mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp, 496 accmode_t accmode); 497 extern bool mac_vnode_check_access_fp_flag; 498 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag) 499 static inline int 500 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp, 501 accmode_t accmode) 502 { 503 504 mac_vnode_assert_locked(dvp, "mac_vnode_check_access"); 505 if (mac_vnode_check_access_enabled()) 506 return (mac_vnode_check_access_impl(cred, dvp, accmode)); 507 return (0); 508 } 509 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp); 510 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp); 511 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp, 512 struct componentname *cnp, struct vattr *vap); 513 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, 514 acl_type_t type); 515 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, 516 int attrnamespace, const char *name); 517 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp, 518 struct image_params *imgp); 519 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp, 520 acl_type_t type); 521 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, 522 int attrnamespace, const char *name); 523 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp, 524 struct vnode *vp, struct componentname *cnp); 525 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, 526 int attrnamespace); 527 528 int mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp, 529 struct componentname *cnp); 530 #ifdef MAC 531 extern bool mac_vnode_check_lookup_fp_flag; 532 #else 533 #define mac_vnode_check_lookup_fp_flag false 534 #endif 535 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag) 536 static inline int 537 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, 538 struct componentname *cnp) 539 { 540 541 mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup"); 542 if (mac_vnode_check_lookup_enabled()) 543 return (mac_vnode_check_lookup_impl(cred, dvp, cnp)); 544 return (0); 545 } 546 547 int mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot, 548 int flags); 549 #ifdef MAC 550 extern bool mac_vnode_check_mmap_fp_flag; 551 #else 552 #define mac_vnode_check_mmap_fp_flag false 553 #endif 554 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag) 555 static inline int 556 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot, 557 int flags) 558 { 559 560 mac_vnode_assert_locked(vp, "mac_vnode_check_mmap"); 561 if (mac_vnode_check_mmap_enabled()) 562 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags)); 563 return (0); 564 } 565 566 int mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp, 567 accmode_t accmode); 568 #ifdef MAC 569 extern bool mac_vnode_check_open_fp_flag; 570 #else 571 #define mac_vnode_check_open_fp_flag false 572 #endif 573 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag) 574 static inline int 575 mac_vnode_check_open(struct ucred *cred, struct vnode *vp, 576 accmode_t accmode) 577 { 578 579 mac_vnode_assert_locked(vp, "mac_vnode_check_open"); 580 if (mac_vnode_check_open_enabled()) 581 return (mac_vnode_check_open_impl(cred, vp, accmode)); 582 return (0); 583 } 584 585 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, 586 int prot); 587 588 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag) 589 #ifdef MAC 590 extern bool mac_vnode_check_poll_fp_flag; 591 int mac_vnode_check_poll(struct ucred *active_cred, 592 struct ucred *file_cred, struct vnode *vp); 593 #else 594 #define mac_vnode_check_poll_fp_flag false 595 static inline int 596 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, 597 struct vnode *vp) 598 { 599 600 return (0); 601 } 602 #endif 603 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp); 604 int mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp); 605 #ifdef MAC 606 extern bool mac_vnode_check_readlink_fp_flag; 607 #else 608 #define mac_vnode_check_readlink_fp_flag false 609 #endif 610 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag) 611 static inline int 612 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp) 613 { 614 615 mac_vnode_assert_locked(vp, "mac_vnode_check_readlink"); 616 if (mac_vnode_check_readlink_enabled()) 617 return (mac_vnode_check_readlink_impl(cred, vp)); 618 return (0); 619 } 620 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag) 621 #ifdef MAC 622 extern bool mac_vnode_check_rename_from_fp_flag; 623 #endif 624 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, 625 struct vnode *vp, struct componentname *cnp); 626 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, 627 struct vnode *vp, int samedir, struct componentname *cnp); 628 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp); 629 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp, 630 acl_type_t type, struct acl *acl); 631 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, 632 int attrnamespace, const char *name); 633 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp, 634 u_long flags); 635 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp, 636 mode_t mode); 637 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp, 638 uid_t uid, gid_t gid); 639 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, 640 struct timespec atime, struct timespec mtime); 641 642 int mac_vnode_check_stat_impl(struct ucred *active_cred, 643 struct ucred *file_cred, struct vnode *vp); 644 #ifdef MAC 645 extern bool mac_vnode_check_stat_fp_flag; 646 #else 647 #define mac_vnode_check_stat_fp_flag false 648 #endif 649 #define mac_vnode_check_stat_enabled() __predict_false(mac_vnode_check_stat_fp_flag) 650 static inline int 651 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, 652 struct vnode *vp) 653 { 654 655 mac_vnode_assert_locked(vp, "mac_vnode_check_stat"); 656 if (mac_vnode_check_stat_enabled()) 657 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp)); 658 return (0); 659 } 660 661 int mac_vnode_check_read_impl(struct ucred *active_cred, 662 struct ucred *file_cred, struct vnode *vp); 663 #ifdef MAC 664 extern bool mac_vnode_check_read_fp_flag; 665 #else 666 #define mac_vnode_check_read_fp_flag false 667 #endif 668 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag) 669 static inline int 670 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, 671 struct vnode *vp) 672 { 673 674 mac_vnode_assert_locked(vp, "mac_vnode_check_read"); 675 if (mac_vnode_check_read_enabled()) 676 return (mac_vnode_check_read_impl(active_cred, file_cred, vp)); 677 return (0); 678 } 679 680 int mac_vnode_check_write_impl(struct ucred *active_cred, 681 struct ucred *file_cred, struct vnode *vp); 682 #ifdef MAC 683 extern bool mac_vnode_check_write_fp_flag; 684 #else 685 #define mac_vnode_check_write_fp_flag false 686 #endif 687 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag) 688 static inline int 689 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, 690 struct vnode *vp) 691 { 692 693 mac_vnode_assert_locked(vp, "mac_vnode_check_write"); 694 if (mac_vnode_check_write_enabled()) 695 return (mac_vnode_check_write_impl(active_cred, file_cred, vp)); 696 return (0); 697 } 698 699 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, 700 struct vnode *vp, struct componentname *cnp); 701 void mac_vnode_copy_label(struct label *, struct label *); 702 void mac_vnode_init(struct vnode *); 703 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp, 704 struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 705 void mac_vnode_destroy(struct vnode *); 706 void mac_vnode_execve_transition(struct ucred *oldcred, 707 struct ucred *newcred, struct vnode *vp, 708 struct label *interpvplabel, struct image_params *imgp); 709 int mac_vnode_execve_will_transition(struct ucred *cred, 710 struct vnode *vp, struct label *interpvplabel, 711 struct image_params *imgp); 712 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp, 713 struct label *newlabel); 714 715 /* 716 * Calls to help various file systems implement labeling functionality using 717 * their existing EA implementation. 718 */ 719 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 720 721 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */ 722