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 * $FreeBSD$ 42 */ 43 44 /* 45 * Kernel interface for Mandatory Access Control -- how kernel services 46 * interact with the TrustedBSD MAC Framework. 47 */ 48 49 #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_ 50 #define _SECURITY_MAC_MAC_FRAMEWORK_H_ 51 52 #ifndef _KERNEL 53 #error "no user-serviceable parts inside" 54 #endif 55 56 struct auditinfo; 57 struct auditinfo_addr; 58 struct bpf_d; 59 struct cdev; 60 struct componentname; 61 struct devfs_dirent; 62 struct ifnet; 63 struct ifreq; 64 struct image_params; 65 struct inpcb; 66 struct ip6q; 67 struct ipq; 68 struct kdb_dbbe; 69 struct ksem; 70 struct label; 71 struct m_tag; 72 struct mac; 73 struct mbuf; 74 struct mount; 75 struct msg; 76 struct msqid_kernel; 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 pipepair; 86 struct thread; 87 struct timespec; 88 struct ucred; 89 struct vattr; 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 int mac_cred_check_setegid(struct ucred *cred, gid_t egid); 121 int mac_cred_check_seteuid(struct ucred *cred, uid_t euid); 122 int mac_cred_check_setgid(struct ucred *cred, gid_t gid); 123 int mac_cred_check_setgroups(struct ucred *cred, int ngroups, 124 gid_t *gidset); 125 int mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid); 126 int mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 127 gid_t sgid); 128 int mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 129 uid_t suid); 130 int mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid); 131 int mac_cred_check_setuid(struct ucred *cred, uid_t uid); 132 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2); 133 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2); 134 void mac_cred_create_init(struct ucred *cred); 135 void mac_cred_create_swapper(struct ucred *cred); 136 void mac_cred_destroy(struct ucred *); 137 void mac_cred_init(struct ucred *); 138 139 int mac_ddb_command_register(struct db_command_table *table, 140 struct db_command *cmd); 141 int mac_ddb_command_exec(struct db_command *cmd, db_expr_t addr, 142 bool have_addr, db_expr_t count, char *modif); 143 144 void mac_devfs_create_device(struct ucred *cred, struct mount *mp, 145 struct cdev *dev, struct devfs_dirent *de); 146 void mac_devfs_create_directory(struct mount *mp, char *dirname, 147 int dirnamelen, struct devfs_dirent *de); 148 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp, 149 struct devfs_dirent *dd, struct devfs_dirent *de); 150 void mac_devfs_destroy(struct devfs_dirent *); 151 void mac_devfs_init(struct devfs_dirent *); 152 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de, 153 struct vnode *vp); 154 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de, 155 struct vnode *vp); 156 157 int mac_ifnet_check_transmit_impl(struct ifnet *ifp, struct mbuf *m); 158 #ifdef MAC 159 extern bool mac_ifnet_check_transmit_fp_flag; 160 #else 161 #define mac_ifnet_check_transmit_fp_flag false 162 #endif 163 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag) 164 static inline int 165 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m) 166 { 167 168 if (mac_ifnet_check_transmit_enabled()) 169 return (mac_ifnet_check_transmit_impl(ifp, m)); 170 return (0); 171 } 172 173 void mac_ifnet_create(struct ifnet *ifp); 174 175 void mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m); 176 #ifdef MAC 177 extern bool mac_ifnet_create_mbuf_fp_flag; 178 #else 179 #define mac_ifnet_create_mbuf_fp_flag false 180 #endif 181 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag) 182 static inline void 183 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m) 184 { 185 186 if (mac_ifnet_create_mbuf_enabled()) 187 mac_ifnet_create_mbuf_impl(ifp, m); 188 } 189 190 void mac_ifnet_destroy(struct ifnet *); 191 void mac_ifnet_init(struct ifnet *); 192 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr, 193 struct ifnet *ifp); 194 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr, 195 struct ifnet *ifp); 196 197 /* Check if the IP address is allowed for the interface. */ 198 int mac_inet_check_add_addr(struct ucred *cred, 199 const struct in_addr *ia, struct ifnet *ifp); 200 int mac_inet6_check_add_addr(struct ucred *cred, 201 const struct in6_addr *ia6, struct ifnet *ifp); 202 203 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m); 204 int mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp); 205 void mac_inpcb_create(struct socket *so, struct inpcb *inp); 206 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m); 207 void mac_inpcb_destroy(struct inpcb *); 208 int mac_inpcb_init(struct inpcb *, int); 209 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); 210 211 void mac_ip6q_create(struct mbuf *m, struct ip6q *q6); 212 void mac_ip6q_destroy(struct ip6q *q6); 213 int mac_ip6q_init(struct ip6q *q6, int); 214 int mac_ip6q_match(struct mbuf *m, struct ip6q *q6); 215 void mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m); 216 void mac_ip6q_update(struct mbuf *m, struct ip6q *q6); 217 218 void mac_ipq_create(struct mbuf *m, struct ipq *q); 219 void mac_ipq_destroy(struct ipq *q); 220 int mac_ipq_init(struct ipq *q, int); 221 int mac_ipq_match(struct mbuf *m, struct ipq *q); 222 void mac_ipq_reassemble(struct ipq *q, struct mbuf *m); 223 void mac_ipq_update(struct mbuf *m, struct ipq *q); 224 225 int mac_kdb_check_backend(struct kdb_dbbe *be); 226 int mac_kdb_grant_backend(struct kdb_dbbe *be); 227 228 int mac_kenv_check_dump(struct ucred *cred); 229 int mac_kenv_check_get(struct ucred *cred, char *name); 230 int mac_kenv_check_set(struct ucred *cred, char *name, char *value); 231 int mac_kenv_check_unset(struct ucred *cred, char *name); 232 233 int mac_kld_check_load(struct ucred *cred, struct vnode *vp); 234 int mac_kld_check_stat(struct ucred *cred); 235 236 void mac_mbuf_copy(struct mbuf *, struct mbuf *); 237 int mac_mbuf_init(struct mbuf *, int); 238 239 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *); 240 void mac_mbuf_tag_destroy(struct m_tag *); 241 int mac_mbuf_tag_init(struct m_tag *, int); 242 243 int mac_mount_check_stat(struct ucred *cred, struct mount *mp); 244 void mac_mount_create(struct ucred *cred, struct mount *mp); 245 void mac_mount_destroy(struct mount *); 246 void mac_mount_init(struct mount *); 247 248 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m); 249 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend); 250 void mac_netinet_firewall_send(struct mbuf *m); 251 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag); 252 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend); 253 void mac_netinet_icmp_replyinplace(struct mbuf *m); 254 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m); 255 void mac_netinet_tcp_reply(struct mbuf *m); 256 257 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m); 258 259 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, 260 unsigned long cmd, void *data); 261 int mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp); 262 #ifdef MAC 263 extern bool mac_pipe_check_poll_fp_flag; 264 #else 265 #define mac_pipe_check_poll_fp_flag false 266 #endif 267 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag) 268 static inline int 269 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp) 270 { 271 272 if (mac_pipe_check_poll_enabled()) 273 return (mac_pipe_check_poll_impl(cred, pp)); 274 return (0); 275 } 276 277 #ifdef MAC 278 extern bool mac_pipe_check_stat_fp_flag; 279 #else 280 #define mac_pipe_check_stat_fp_flag false 281 #endif 282 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag) 283 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp); 284 int mac_pipe_check_read_impl(struct ucred *cred, struct pipepair *pp); 285 #ifdef MAC 286 extern bool mac_pipe_check_read_fp_flag; 287 #else 288 #define mac_pipe_check_read_fp_flag false 289 #endif 290 #define mac_pipe_check_read_enabled() __predict_false(mac_pipe_check_read_fp_flag) 291 static inline int 292 mac_pipe_check_read(struct ucred *cred, struct pipepair *pp) 293 { 294 295 if (mac_pipe_check_read_enabled()) 296 return (mac_pipe_check_read_impl(cred, pp)); 297 return (0); 298 } 299 300 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp); 301 void mac_pipe_create(struct ucred *cred, struct pipepair *pp); 302 void mac_pipe_destroy(struct pipepair *); 303 void mac_pipe_init(struct pipepair *); 304 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, 305 struct label *label); 306 307 int mac_posixsem_check_getvalue(struct ucred *active_cred, 308 struct ucred *file_cred, struct ksem *ks); 309 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks); 310 int mac_posixsem_check_post(struct ucred *active_cred, 311 struct ucred *file_cred, struct ksem *ks); 312 int mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks, 313 mode_t mode); 314 int mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks, 315 uid_t uid, gid_t gid); 316 int mac_posixsem_check_stat(struct ucred *active_cred, 317 struct ucred *file_cred, struct ksem *ks); 318 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks); 319 int mac_posixsem_check_wait(struct ucred *active_cred, 320 struct ucred *file_cred, struct ksem *ks); 321 void mac_posixsem_create(struct ucred *cred, struct ksem *ks); 322 void mac_posixsem_destroy(struct ksem *); 323 void mac_posixsem_init(struct ksem *); 324 325 int mac_posixshm_check_create(struct ucred *cred, const char *path); 326 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, 327 int prot, int flags); 328 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd, 329 accmode_t accmode); 330 int mac_posixshm_check_read(struct ucred *active_cred, 331 struct ucred *file_cred, struct shmfd *shmfd); 332 int mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd, 333 mode_t mode); 334 int mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd, 335 uid_t uid, gid_t gid); 336 int mac_posixshm_check_stat(struct ucred *active_cred, 337 struct ucred *file_cred, struct shmfd *shmfd); 338 int mac_posixshm_check_truncate(struct ucred *active_cred, 339 struct ucred *file_cred, struct shmfd *shmfd); 340 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd); 341 int mac_posixshm_check_write(struct ucred *active_cred, 342 struct ucred *file_cred, struct shmfd *shmfd); 343 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd); 344 void mac_posixshm_destroy(struct shmfd *); 345 void mac_posixshm_init(struct shmfd *); 346 347 int mac_priv_check_impl(struct ucred *cred, int priv); 348 #ifdef MAC 349 extern bool mac_priv_check_fp_flag; 350 #else 351 #define mac_priv_check_fp_flag false 352 #endif 353 #define mac_priv_check_enabled() __predict_false(mac_priv_check_fp_flag) 354 static inline int 355 mac_priv_check(struct ucred *cred, int priv) 356 { 357 358 if (mac_priv_check_enabled()) 359 return (mac_priv_check_impl(cred, priv)); 360 return (0); 361 } 362 363 int mac_priv_grant_impl(struct ucred *cred, int priv); 364 #ifdef MAC 365 extern bool mac_priv_grant_fp_flag; 366 #else 367 #define mac_priv_grant_fp_flag false 368 #endif 369 #define mac_priv_grant_enabled() __predict_false(mac_priv_grant_fp_flag) 370 static inline int 371 mac_priv_grant(struct ucred *cred, int priv) 372 { 373 374 if (mac_priv_grant_enabled()) 375 return (mac_priv_grant_impl(cred, priv)); 376 return (EPERM); 377 } 378 379 int mac_proc_check_debug(struct ucred *cred, struct proc *p); 380 int mac_proc_check_sched(struct ucred *cred, struct proc *p); 381 int mac_proc_check_signal(struct ucred *cred, struct proc *p, 382 int signum); 383 int mac_proc_check_wait(struct ucred *cred, struct proc *p); 384 void mac_proc_destroy(struct proc *); 385 void mac_proc_init(struct proc *); 386 void mac_proc_vm_revoke(struct thread *td); 387 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); 388 void mac_execve_exit(struct image_params *imgp); 389 void mac_execve_interpreter_enter(struct vnode *interpvp, 390 struct label **interplabel); 391 void mac_execve_interpreter_exit(struct label *interpvplabel); 392 393 int mac_socket_check_accept(struct ucred *cred, struct socket *so); 394 int mac_socket_check_bind(struct ucred *cred, struct socket *so, 395 struct sockaddr *sa); 396 int mac_socket_check_connect(struct ucred *cred, struct socket *so, 397 struct sockaddr *sa); 398 int mac_socket_check_create(struct ucred *cred, int domain, int type, 399 int proto); 400 int mac_socket_check_deliver(struct socket *so, struct mbuf *m); 401 int mac_socket_check_listen(struct ucred *cred, struct socket *so); 402 int mac_socket_check_poll(struct ucred *cred, struct socket *so); 403 int mac_socket_check_receive(struct ucred *cred, struct socket *so); 404 int mac_socket_check_send(struct ucred *cred, struct socket *so); 405 int mac_socket_check_stat(struct ucred *cred, struct socket *so); 406 int mac_socket_check_visible(struct ucred *cred, struct socket *so); 407 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m); 408 void mac_socket_create(struct ucred *cred, struct socket *so); 409 void mac_socket_destroy(struct socket *); 410 int mac_socket_init(struct socket *, int); 411 void mac_socket_newconn(struct socket *oldso, struct socket *newso); 412 int mac_getsockopt_label(struct ucred *cred, struct socket *so, 413 struct mac *extmac); 414 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, 415 struct mac *extmac); 416 int mac_setsockopt_label(struct ucred *cred, struct socket *so, 417 struct mac *extmac); 418 419 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so); 420 void mac_socketpeer_set_from_socket(struct socket *oldso, 421 struct socket *newso); 422 423 void mac_syncache_create(struct label *l, struct inpcb *inp); 424 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m); 425 void mac_syncache_destroy(struct label **l); 426 int mac_syncache_init(struct label **l); 427 428 int mac_system_check_acct(struct ucred *cred, struct vnode *vp); 429 int mac_system_check_audit(struct ucred *cred, void *record, int length); 430 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp); 431 int mac_system_check_auditon(struct ucred *cred, int cmd); 432 int mac_system_check_reboot(struct ucred *cred, int howto); 433 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp); 434 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp); 435 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 436 void *arg1, int arg2, struct sysctl_req *req); 437 438 void mac_sysvmsg_cleanup(struct msg *msgptr); 439 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, 440 struct msg *msgptr); 441 void mac_sysvmsg_destroy(struct msg *); 442 void mac_sysvmsg_init(struct msg *); 443 444 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, 445 struct msqid_kernel *msqkptr); 446 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr); 447 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr); 448 int mac_sysvmsq_check_msqctl(struct ucred *cred, 449 struct msqid_kernel *msqkptr, int cmd); 450 int mac_sysvmsq_check_msqget(struct ucred *cred, 451 struct msqid_kernel *msqkptr); 452 int mac_sysvmsq_check_msqrcv(struct ucred *cred, 453 struct msqid_kernel *msqkptr); 454 int mac_sysvmsq_check_msqsnd(struct ucred *cred, 455 struct msqid_kernel *msqkptr); 456 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr); 457 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr); 458 void mac_sysvmsq_destroy(struct msqid_kernel *); 459 void mac_sysvmsq_init(struct msqid_kernel *); 460 461 int mac_sysvsem_check_semctl(struct ucred *cred, 462 struct semid_kernel *semakptr, int cmd); 463 int mac_sysvsem_check_semget(struct ucred *cred, 464 struct semid_kernel *semakptr); 465 int mac_sysvsem_check_semop(struct ucred *cred, 466 struct semid_kernel *semakptr, size_t accesstype); 467 void mac_sysvsem_cleanup(struct semid_kernel *semakptr); 468 void mac_sysvsem_create(struct ucred *cred, 469 struct semid_kernel *semakptr); 470 void mac_sysvsem_destroy(struct semid_kernel *); 471 void mac_sysvsem_init(struct semid_kernel *); 472 473 int mac_sysvshm_check_shmat(struct ucred *cred, 474 struct shmid_kernel *shmsegptr, int shmflg); 475 int mac_sysvshm_check_shmctl(struct ucred *cred, 476 struct shmid_kernel *shmsegptr, int cmd); 477 int mac_sysvshm_check_shmdt(struct ucred *cred, 478 struct shmid_kernel *shmsegptr); 479 int mac_sysvshm_check_shmget(struct ucred *cred, 480 struct shmid_kernel *shmsegptr, int shmflg); 481 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr); 482 void mac_sysvshm_create(struct ucred *cred, 483 struct shmid_kernel *shmsegptr); 484 void mac_sysvshm_destroy(struct shmid_kernel *); 485 void mac_sysvshm_init(struct shmid_kernel *); 486 487 void mac_thread_userret(struct thread *td); 488 489 #if defined(MAC) && defined(DEBUG_VFS_LOCKS) 490 void mac_vnode_assert_locked(struct vnode *vp, const char *func); 491 #else 492 #define mac_vnode_assert_locked(vp, func) do { } while (0) 493 #endif 494 495 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp); 496 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp); 497 int mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp, 498 accmode_t accmode); 499 extern bool mac_vnode_check_access_fp_flag; 500 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag) 501 static inline int 502 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp, 503 accmode_t accmode) 504 { 505 506 mac_vnode_assert_locked(dvp, "mac_vnode_check_access"); 507 if (mac_vnode_check_access_enabled()) 508 return (mac_vnode_check_access_impl(cred, dvp, accmode)); 509 return (0); 510 } 511 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp); 512 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp); 513 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp, 514 struct componentname *cnp, struct vattr *vap); 515 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, 516 acl_type_t type); 517 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, 518 int attrnamespace, const char *name); 519 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp, 520 struct image_params *imgp); 521 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp, 522 acl_type_t type); 523 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, 524 int attrnamespace, const char *name); 525 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp, 526 struct vnode *vp, struct componentname *cnp); 527 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, 528 int attrnamespace); 529 530 int mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp, 531 struct componentname *cnp); 532 #ifdef MAC 533 extern bool mac_vnode_check_lookup_fp_flag; 534 #else 535 #define mac_vnode_check_lookup_fp_flag false 536 #endif 537 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag) 538 static inline int 539 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, 540 struct componentname *cnp) 541 { 542 543 mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup"); 544 if (mac_vnode_check_lookup_enabled()) 545 return (mac_vnode_check_lookup_impl(cred, dvp, cnp)); 546 return (0); 547 } 548 549 int mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot, 550 int flags); 551 #ifdef MAC 552 extern bool mac_vnode_check_mmap_fp_flag; 553 #else 554 #define mac_vnode_check_mmap_fp_flag false 555 #endif 556 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag) 557 static inline int 558 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot, 559 int flags) 560 { 561 562 mac_vnode_assert_locked(vp, "mac_vnode_check_mmap"); 563 if (mac_vnode_check_mmap_enabled()) 564 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags)); 565 return (0); 566 } 567 568 int mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp, 569 accmode_t accmode); 570 #ifdef MAC 571 extern bool mac_vnode_check_open_fp_flag; 572 #else 573 #define mac_vnode_check_open_fp_flag false 574 #endif 575 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag) 576 static inline int 577 mac_vnode_check_open(struct ucred *cred, struct vnode *vp, 578 accmode_t accmode) 579 { 580 581 mac_vnode_assert_locked(vp, "mac_vnode_check_open"); 582 if (mac_vnode_check_open_enabled()) 583 return (mac_vnode_check_open_impl(cred, vp, accmode)); 584 return (0); 585 } 586 587 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, 588 int prot); 589 590 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag) 591 #ifdef MAC 592 extern bool mac_vnode_check_poll_fp_flag; 593 int mac_vnode_check_poll(struct ucred *active_cred, 594 struct ucred *file_cred, struct vnode *vp); 595 #else 596 #define mac_vnode_check_poll_fp_flag false 597 static inline int 598 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, 599 struct vnode *vp) 600 { 601 602 return (0); 603 } 604 #endif 605 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp); 606 int mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp); 607 #ifdef MAC 608 extern bool mac_vnode_check_readlink_fp_flag; 609 #else 610 #define mac_vnode_check_readlink_fp_flag false 611 #endif 612 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag) 613 static inline int 614 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp) 615 { 616 617 mac_vnode_assert_locked(vp, "mac_vnode_check_readlink"); 618 if (mac_vnode_check_readlink_enabled()) 619 return (mac_vnode_check_readlink_impl(cred, vp)); 620 return (0); 621 } 622 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag) 623 #ifdef MAC 624 extern bool mac_vnode_check_rename_from_fp_flag; 625 #endif 626 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, 627 struct vnode *vp, struct componentname *cnp); 628 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, 629 struct vnode *vp, int samedir, struct componentname *cnp); 630 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp); 631 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp, 632 acl_type_t type, struct acl *acl); 633 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, 634 int attrnamespace, const char *name); 635 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp, 636 u_long flags); 637 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp, 638 mode_t mode); 639 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp, 640 uid_t uid, gid_t gid); 641 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, 642 struct timespec atime, struct timespec mtime); 643 644 int mac_vnode_check_stat_impl(struct ucred *active_cred, 645 struct ucred *file_cred, struct vnode *vp); 646 #ifdef MAC 647 extern bool mac_vnode_check_stat_fp_flag; 648 #else 649 #define mac_vnode_check_stat_fp_flag false 650 #endif 651 #define mac_vnode_check_stat_enabled() __predict_false(mac_vnode_check_stat_fp_flag) 652 static inline int 653 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, 654 struct vnode *vp) 655 { 656 657 mac_vnode_assert_locked(vp, "mac_vnode_check_stat"); 658 if (mac_vnode_check_stat_enabled()) 659 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp)); 660 return (0); 661 } 662 663 int mac_vnode_check_read_impl(struct ucred *active_cred, 664 struct ucred *file_cred, struct vnode *vp); 665 #ifdef MAC 666 extern bool mac_vnode_check_read_fp_flag; 667 #else 668 #define mac_vnode_check_read_fp_flag false 669 #endif 670 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag) 671 static inline int 672 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, 673 struct vnode *vp) 674 { 675 676 mac_vnode_assert_locked(vp, "mac_vnode_check_read"); 677 if (mac_vnode_check_read_enabled()) 678 return (mac_vnode_check_read_impl(active_cred, file_cred, vp)); 679 return (0); 680 } 681 682 int mac_vnode_check_write_impl(struct ucred *active_cred, 683 struct ucred *file_cred, struct vnode *vp); 684 #ifdef MAC 685 extern bool mac_vnode_check_write_fp_flag; 686 #else 687 #define mac_vnode_check_write_fp_flag false 688 #endif 689 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag) 690 static inline int 691 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, 692 struct vnode *vp) 693 { 694 695 mac_vnode_assert_locked(vp, "mac_vnode_check_write"); 696 if (mac_vnode_check_write_enabled()) 697 return (mac_vnode_check_write_impl(active_cred, file_cred, vp)); 698 return (0); 699 } 700 701 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, 702 struct vnode *vp, struct componentname *cnp); 703 void mac_vnode_copy_label(struct label *, struct label *); 704 void mac_vnode_init(struct vnode *); 705 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp, 706 struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 707 void mac_vnode_destroy(struct vnode *); 708 void mac_vnode_execve_transition(struct ucred *oldcred, 709 struct ucred *newcred, struct vnode *vp, 710 struct label *interpvplabel, struct image_params *imgp); 711 int mac_vnode_execve_will_transition(struct ucred *cred, 712 struct vnode *vp, struct label *interpvplabel, 713 struct image_params *imgp); 714 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp, 715 struct label *newlabel); 716 717 /* 718 * Calls to help various file systems implement labeling functionality using 719 * their existing EA implementation. 720 */ 721 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 722 723 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */ 724