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