mac_policy.h revision 147982
1/*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc. 4 * Copyright (c) 2005 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 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * $FreeBSD: head/sys/security/mac/mac_policy.h 147982 2005-07-14 10:22:09Z rwatson $ 39 */ 40/* 41 * Kernel interface for MAC policy modules. 42 */ 43#ifndef _SYS_MAC_POLICY_H_ 44#define _SYS_MAC_POLICY_H_ 45 46/*- 47 * Pluggable access control policy definition structure. 48 * 49 * List of operations that are performed as part of the implementation 50 * of a MAC policy. Policy implementors declare operations with a 51 * mac_policy_ops structure, and using the MAC_POLICY_SET() macro. 52 * If an entry point is not declared, then then the policy will be ignored 53 * during evaluation of that event or check. 54 * 55 * Operations are sorted first by general class of operation, then 56 * alphabetically. 57 */ 58struct acl; 59struct bpf_d; 60struct componentname; 61struct devfs_dirent; 62struct ifnet; 63struct image_params; 64struct inpcb; 65struct ipq; 66struct ksem; 67struct label; 68struct mac_policy_conf; 69struct mbuf; 70struct mount; 71struct msqid_kernel; 72struct pipepair; 73struct proc; 74struct sbuf; 75struct semid_kernel; 76struct shmid_kernel; 77struct sockaddr; 78struct socket; 79struct sysctl_oid; 80struct sysctl_req; 81struct thread; 82struct ucred; 83struct uio; 84struct vattr; 85struct vnode; 86struct mac_policy_ops { 87 /* 88 * Policy module operations. 89 */ 90 void (*mpo_destroy)(struct mac_policy_conf *mpc); 91 void (*mpo_init)(struct mac_policy_conf *mpc); 92 93 /* 94 * General policy-directed security system call so that policies may 95 * implement new services without reserving explicit system call 96 * numbers. 97 */ 98 int (*mpo_syscall)(struct thread *td, int call, void *arg); 99 100 /* 101 * Label operations. Initialize label storage, destroy label 102 * storage, recycle for re-use without init/destroy, copy a label to 103 * initialized storage, and externalize/internalize from/to 104 * initialized storage. 105 */ 106 void (*mpo_init_bpfdesc_label)(struct label *label); 107 void (*mpo_init_cred_label)(struct label *label); 108 void (*mpo_init_devfsdirent_label)(struct label *label); 109 void (*mpo_init_ifnet_label)(struct label *label); 110 int (*mpo_init_inpcb_label)(struct label *label, int flag); 111 void (*mpo_init_sysv_msgmsg_label)(struct label *label); 112 void (*mpo_init_sysv_msgqueue_label)(struct label *label); 113 void (*mpo_init_sysv_sem_label)(struct label *label); 114 void (*mpo_init_sysv_shm_label)(struct label *label); 115 int (*mpo_init_ipq_label)(struct label *label, int flag); 116 int (*mpo_init_mbuf_label)(struct label *label, int flag); 117 void (*mpo_init_mount_label)(struct label *label); 118 void (*mpo_init_mount_fs_label)(struct label *label); 119 int (*mpo_init_socket_label)(struct label *label, int flag); 120 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 121 void (*mpo_init_pipe_label)(struct label *label); 122 void (*mpo_init_posix_sem_label)(struct label *label); 123 void (*mpo_init_proc_label)(struct label *label); 124 void (*mpo_init_vnode_label)(struct label *label); 125 void (*mpo_destroy_bpfdesc_label)(struct label *label); 126 void (*mpo_destroy_cred_label)(struct label *label); 127 void (*mpo_destroy_devfsdirent_label)(struct label *label); 128 void (*mpo_destroy_ifnet_label)(struct label *label); 129 void (*mpo_destroy_inpcb_label)(struct label *label); 130 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label); 131 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label); 132 void (*mpo_destroy_sysv_sem_label)(struct label *label); 133 void (*mpo_destroy_sysv_shm_label)(struct label *label); 134 void (*mpo_destroy_ipq_label)(struct label *label); 135 void (*mpo_destroy_mbuf_label)(struct label *label); 136 void (*mpo_destroy_mount_label)(struct label *label); 137 void (*mpo_destroy_mount_fs_label)(struct label *label); 138 void (*mpo_destroy_socket_label)(struct label *label); 139 void (*mpo_destroy_socket_peer_label)(struct label *label); 140 void (*mpo_destroy_pipe_label)(struct label *label); 141 void (*mpo_destroy_posix_sem_label)(struct label *label); 142 void (*mpo_destroy_proc_label)(struct label *label); 143 void (*mpo_destroy_vnode_label)(struct label *label); 144 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel); 145 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel); 146 void (*mpo_cleanup_sysv_sem)(struct label *semalabel); 147 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel); 148 void (*mpo_copy_cred_label)(struct label *src, 149 struct label *dest); 150 void (*mpo_copy_ifnet_label)(struct label *src, 151 struct label *dest); 152 void (*mpo_copy_mbuf_label)(struct label *src, 153 struct label *dest); 154 void (*mpo_copy_pipe_label)(struct label *src, 155 struct label *dest); 156 void (*mpo_copy_socket_label)(struct label *src, 157 struct label *dest); 158 void (*mpo_copy_vnode_label)(struct label *src, 159 struct label *dest); 160 int (*mpo_externalize_cred_label)(struct label *label, 161 char *element_name, struct sbuf *sb, int *claimed); 162 int (*mpo_externalize_ifnet_label)(struct label *label, 163 char *element_name, struct sbuf *sb, int *claimed); 164 int (*mpo_externalize_pipe_label)(struct label *label, 165 char *element_name, struct sbuf *sb, int *claimed); 166 int (*mpo_externalize_socket_label)(struct label *label, 167 char *element_name, struct sbuf *sb, int *claimed); 168 int (*mpo_externalize_socket_peer_label)(struct label *label, 169 char *element_name, struct sbuf *sb, int *claimed); 170 int (*mpo_externalize_vnode_label)(struct label *label, 171 char *element_name, struct sbuf *sb, int *claimed); 172 int (*mpo_internalize_cred_label)(struct label *label, 173 char *element_name, char *element_data, int *claimed); 174 int (*mpo_internalize_ifnet_label)(struct label *label, 175 char *element_name, char *element_data, int *claimed); 176 int (*mpo_internalize_pipe_label)(struct label *label, 177 char *element_name, char *element_data, int *claimed); 178 int (*mpo_internalize_socket_label)(struct label *label, 179 char *element_name, char *element_data, int *claimed); 180 int (*mpo_internalize_vnode_label)(struct label *label, 181 char *element_name, char *element_data, int *claimed); 182 183 /* 184 * Labeling event operations: file system objects, and things that 185 * look a lot like file system objects. 186 */ 187 void (*mpo_associate_vnode_devfs)(struct mount *mp, 188 struct label *fslabel, struct devfs_dirent *de, 189 struct label *delabel, struct vnode *vp, 190 struct label *vlabel); 191 int (*mpo_associate_vnode_extattr)(struct mount *mp, 192 struct label *fslabel, struct vnode *vp, 193 struct label *vlabel); 194 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 195 struct label *fslabel, struct vnode *vp, 196 struct label *vlabel); 197 void (*mpo_create_devfs_device)(struct ucred *cred, 198 struct mount *mp, struct cdev *dev, 199 struct devfs_dirent *de, struct label *label); 200 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname, 201 int dirnamelen, struct devfs_dirent *de, 202 struct label *label); 203 void (*mpo_create_devfs_symlink)(struct ucred *cred, 204 struct mount *mp, struct devfs_dirent *dd, 205 struct label *ddlabel, struct devfs_dirent *de, 206 struct label *delabel); 207 int (*mpo_create_vnode_extattr)(struct ucred *cred, 208 struct mount *mp, struct label *fslabel, 209 struct vnode *dvp, struct label *dlabel, 210 struct vnode *vp, struct label *vlabel, 211 struct componentname *cnp); 212 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 213 struct label *mntlabel, struct label *fslabel); 214 void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp, 215 struct label *mountlabel, struct label *fslabel); 216 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 217 struct label *vnodelabel, struct label *label); 218 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 219 struct vnode *vp, struct label *vlabel, 220 struct label *intlabel); 221 void (*mpo_update_devfsdirent)(struct mount *mp, 222 struct devfs_dirent *devfs_dirent, 223 struct label *direntlabel, struct vnode *vp, 224 struct label *vnodelabel); 225 226 /* 227 * Labeling event operations: IPC objects. 228 */ 229 void (*mpo_create_mbuf_from_socket)(struct socket *so, 230 struct label *socketlabel, struct mbuf *m, 231 struct label *mbuflabel); 232 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 233 struct label *socketlabel); 234 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 235 struct label *oldsocketlabel, struct socket *newsocket, 236 struct label *newsocketlabel); 237 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 238 struct label *oldlabel, struct label *newlabel); 239 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp, 240 struct label *oldlabel, struct label *newlabel); 241 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 242 struct label *mbuflabel, struct socket *so, 243 struct label *socketpeerlabel); 244 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 245 struct label *oldsocketlabel, struct socket *newsocket, 246 struct label *newsocketpeerlabel); 247 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp, 248 struct label *pipelabel); 249 250 /* 251 * Labeling event operations: System V IPC primitives. 252 */ 253 void (*mpo_create_sysv_msgmsg)(struct ucred *cred, 254 struct msqid_kernel *msqkptr, struct label *msqlabel, 255 struct msg *msgptr, struct label *msglabel); 256 void (*mpo_create_sysv_msgqueue)(struct ucred *cred, 257 struct msqid_kernel *msqkptr, struct label *msqlabel); 258 void (*mpo_create_sysv_sem)(struct ucred *cred, 259 struct semid_kernel *semakptr, struct label *semalabel); 260 void (*mpo_create_sysv_shm)(struct ucred *cred, 261 struct shmid_kernel *shmsegptr, struct label *shmlabel); 262 263 /* 264 * Labeling event operations: POSIX (global/inter-process) semaphores. 265 */ 266 void (*mpo_create_posix_sem)(struct ucred *cred, 267 struct ksem *ksemptr, struct label *ks_label); 268 269 /* 270 * Labeling event operations: network objects. 271 */ 272 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 273 struct label *bpflabel); 274 void (*mpo_create_ifnet)(struct ifnet *ifnet, 275 struct label *ifnetlabel); 276 void (*mpo_create_inpcb_from_socket)(struct socket *so, 277 struct label *solabel, struct inpcb *inp, 278 struct label *inplabel); 279 void (*mpo_create_ipq)(struct mbuf *fragment, 280 struct label *fragmentlabel, struct ipq *ipq, 281 struct label *ipqlabel); 282 void (*mpo_create_datagram_from_ipq) 283 (struct ipq *ipq, struct label *ipqlabel, 284 struct mbuf *datagram, struct label *datagramlabel); 285 void (*mpo_create_fragment)(struct mbuf *datagram, 286 struct label *datagramlabel, struct mbuf *fragment, 287 struct label *fragmentlabel); 288 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp, 289 struct label *inplabel, struct mbuf *m, 290 struct label *mlabel); 291 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 292 struct label *ifnetlabel, struct mbuf *mbuf, 293 struct label *mbuflabel); 294 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 295 struct label *bpflabel, struct mbuf *mbuf, 296 struct label *mbuflabel); 297 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 298 struct label *ifnetlabel, struct mbuf *mbuf, 299 struct label *mbuflabel); 300 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 301 struct label *oldmbuflabel, struct ifnet *ifnet, 302 struct label *ifnetlabel, struct mbuf *newmbuf, 303 struct label *newmbuflabel); 304 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 305 struct label *oldmbuflabel, struct mbuf *newmbuf, 306 struct label *newmbuflabel); 307 int (*mpo_fragment_match)(struct mbuf *fragment, 308 struct label *fragmentlabel, struct ipq *ipq, 309 struct label *ipqlabel); 310 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m, 311 struct label *mlabel); 312 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel); 313 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 314 struct label *ifnetlabel, struct label *newlabel); 315 void (*mpo_update_ipq)(struct mbuf *fragment, 316 struct label *fragmentlabel, struct ipq *ipq, 317 struct label *ipqlabel); 318 void (*mpo_inpcb_sosetlabel)(struct socket *so, 319 struct label *label, struct inpcb *inp, 320 struct label *inplabel); 321 322 /* 323 * Labeling event operations: processes. 324 */ 325 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 326 struct vnode *vp, struct label *vnodelabel, 327 struct label *interpvnodelabel, 328 struct image_params *imgp, struct label *execlabel); 329 int (*mpo_execve_will_transition)(struct ucred *old, 330 struct vnode *vp, struct label *vnodelabel, 331 struct label *interpvnodelabel, 332 struct image_params *imgp, struct label *execlabel); 333 void (*mpo_create_proc0)(struct ucred *cred); 334 void (*mpo_create_proc1)(struct ucred *cred); 335 void (*mpo_relabel_cred)(struct ucred *cred, 336 struct label *newlabel); 337 void (*mpo_thread_userret)(struct thread *thread); 338 339 /* 340 * Access control checks. 341 */ 342 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 343 struct label *bpflabel, struct ifnet *ifnet, 344 struct label *ifnetlabel); 345 int (*mpo_check_cred_relabel)(struct ucred *cred, 346 struct label *newlabel); 347 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 348 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 349 struct ifnet *ifnet, struct label *ifnetlabel, 350 struct label *newlabel); 351 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 352 struct label *ifnetlabel, struct mbuf *m, 353 struct label *mbuflabel); 354 int (*mpo_check_inpcb_deliver)(struct inpcb *inp, 355 struct label *inplabel, struct mbuf *m, 356 struct label *mlabel); 357 int (*mpo_check_sysv_msgmsq)(struct ucred *cred, 358 struct msg *msgptr, struct label *msglabel, 359 struct msqid_kernel *msqkptr, struct label *msqklabel); 360 int (*mpo_check_sysv_msgrcv)(struct ucred *cred, 361 struct msg *msgptr, struct label *msglabel); 362 int (*mpo_check_sysv_msgrmid)(struct ucred *cred, 363 struct msg *msgptr, struct label *msglabel); 364 int (*mpo_check_sysv_msqget)(struct ucred *cred, 365 struct msqid_kernel *msqkptr, struct label *msqklabel); 366 int (*mpo_check_sysv_msqsnd)(struct ucred *cred, 367 struct msqid_kernel *msqkptr, struct label *msqklabel); 368 int (*mpo_check_sysv_msqrcv)(struct ucred *cred, 369 struct msqid_kernel *msqkptr, struct label *msqklabel); 370 int (*mpo_check_sysv_msqctl)(struct ucred *cred, 371 struct msqid_kernel *msqkptr, struct label *msqklabel, 372 int cmd); 373 int (*mpo_check_sysv_semctl)(struct ucred *cred, 374 struct semid_kernel *semakptr, struct label *semaklabel, 375 int cmd); 376 int (*mpo_check_sysv_semget)(struct ucred *cred, 377 struct semid_kernel *semakptr, struct label *semaklabel); 378 int (*mpo_check_sysv_semop)(struct ucred *cred, 379 struct semid_kernel *semakptr, struct label *semaklabel, 380 size_t accesstype); 381 int (*mpo_check_sysv_shmat)(struct ucred *cred, 382 struct shmid_kernel *shmsegptr, 383 struct label *shmseglabel, int shmflg); 384 int (*mpo_check_sysv_shmctl)(struct ucred *cred, 385 struct shmid_kernel *shmsegptr, 386 struct label *shmseglabel, int cmd); 387 int (*mpo_check_sysv_shmdt)(struct ucred *cred, 388 struct shmid_kernel *shmsegptr, 389 struct label *shmseglabel); 390 int (*mpo_check_sysv_shmget)(struct ucred *cred, 391 struct shmid_kernel *shmsegptr, 392 struct label *shmseglabel, int shmflg); 393 int (*mpo_check_kenv_dump)(struct ucred *cred); 394 int (*mpo_check_kenv_get)(struct ucred *cred, char *name); 395 int (*mpo_check_kenv_set)(struct ucred *cred, char *name, 396 char *value); 397 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name); 398 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp, 399 struct label *vlabel); 400 int (*mpo_check_kld_stat)(struct ucred *cred); 401 int (*mpo_check_kld_unload)(struct ucred *cred); 402 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 403 struct label *mntlabel); 404 int (*mpo_check_pipe_ioctl)(struct ucred *cred, 405 struct pipepair *pp, struct label *pipelabel, 406 unsigned long cmd, void *data); 407 int (*mpo_check_pipe_poll)(struct ucred *cred, 408 struct pipepair *pp, struct label *pipelabel); 409 int (*mpo_check_pipe_read)(struct ucred *cred, 410 struct pipepair *pp, struct label *pipelabel); 411 int (*mpo_check_pipe_relabel)(struct ucred *cred, 412 struct pipepair *pp, struct label *pipelabel, 413 struct label *newlabel); 414 int (*mpo_check_pipe_stat)(struct ucred *cred, 415 struct pipepair *pp, struct label *pipelabel); 416 int (*mpo_check_pipe_write)(struct ucred *cred, 417 struct pipepair *pp, struct label *pipelabel); 418 int (*mpo_check_posix_sem_destroy)(struct ucred *cred, 419 struct ksem *ksemptr, struct label *ks_label); 420 int (*mpo_check_posix_sem_getvalue)(struct ucred *cred, 421 struct ksem *ksemptr, struct label *ks_label); 422 int (*mpo_check_posix_sem_open)(struct ucred *cred, 423 struct ksem *ksemptr, struct label *ks_label); 424 int (*mpo_check_posix_sem_post)(struct ucred *cred, 425 struct ksem *ksemptr, struct label *ks_label); 426 int (*mpo_check_posix_sem_unlink)(struct ucred *cred, 427 struct ksem *ksemptr, struct label *ks_label); 428 int (*mpo_check_posix_sem_wait)(struct ucred *cred, 429 struct ksem *ksemptr, struct label *ks_label); 430 int (*mpo_check_proc_debug)(struct ucred *cred, 431 struct proc *proc); 432 int (*mpo_check_proc_sched)(struct ucred *cred, 433 struct proc *proc); 434 int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid); 435 int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid); 436 int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid); 437 int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid); 438 int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups, 439 gid_t *gidset); 440 int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid, 441 uid_t euid); 442 int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid, 443 gid_t egid); 444 int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid, 445 uid_t euid, uid_t suid); 446 int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid, 447 gid_t egid, gid_t sgid); 448 int (*mpo_check_proc_signal)(struct ucred *cred, 449 struct proc *proc, int signum); 450 int (*mpo_check_proc_wait)(struct ucred *cred, 451 struct proc *proc); 452 int (*mpo_check_socket_accept)(struct ucred *cred, 453 struct socket *so, struct label *socketlabel); 454 int (*mpo_check_socket_bind)(struct ucred *cred, 455 struct socket *so, struct label *socketlabel, 456 struct sockaddr *sockaddr); 457 int (*mpo_check_socket_connect)(struct ucred *cred, 458 struct socket *so, struct label *socketlabel, 459 struct sockaddr *sockaddr); 460 int (*mpo_check_socket_create)(struct ucred *cred, int domain, 461 int type, int protocol); 462 int (*mpo_check_socket_deliver)(struct socket *so, 463 struct label *socketlabel, struct mbuf *m, 464 struct label *mbuflabel); 465 int (*mpo_check_socket_listen)(struct ucred *cred, 466 struct socket *so, struct label *socketlabel); 467 int (*mpo_check_socket_poll)(struct ucred *cred, 468 struct socket *so, struct label *socketlabel); 469 int (*mpo_check_socket_receive)(struct ucred *cred, 470 struct socket *so, struct label *socketlabel); 471 int (*mpo_check_socket_relabel)(struct ucred *cred, 472 struct socket *so, struct label *socketlabel, 473 struct label *newlabel); 474 int (*mpo_check_socket_send)(struct ucred *cred, 475 struct socket *so, struct label *socketlabel); 476 int (*mpo_check_socket_stat)(struct ucred *cred, 477 struct socket *so, struct label *socketlabel); 478 int (*mpo_check_socket_visible)(struct ucred *cred, 479 struct socket *so, struct label *socketlabel); 480 int (*mpo_check_sysarch_ioperm)(struct ucred *cred); 481 int (*mpo_check_system_acct)(struct ucred *cred, 482 struct vnode *vp, struct label *vlabel); 483 int (*mpo_check_system_nfsd)(struct ucred *cred); 484 int (*mpo_check_system_reboot)(struct ucred *cred, int howto); 485 int (*mpo_check_system_settime)(struct ucred *cred); 486 int (*mpo_check_system_swapon)(struct ucred *cred, 487 struct vnode *vp, struct label *label); 488 int (*mpo_check_system_swapoff)(struct ucred *cred, 489 struct vnode *vp, struct label *label); 490 int (*mpo_check_system_sysctl)(struct ucred *cred, 491 struct sysctl_oid *oidp, void *arg1, int arg2, 492 struct sysctl_req *req); 493 int (*mpo_check_vnode_access)(struct ucred *cred, 494 struct vnode *vp, struct label *label, int acc_mode); 495 int (*mpo_check_vnode_chdir)(struct ucred *cred, 496 struct vnode *dvp, struct label *dlabel); 497 int (*mpo_check_vnode_chroot)(struct ucred *cred, 498 struct vnode *dvp, struct label *dlabel); 499 int (*mpo_check_vnode_create)(struct ucred *cred, 500 struct vnode *dvp, struct label *dlabel, 501 struct componentname *cnp, struct vattr *vap); 502 int (*mpo_check_vnode_delete)(struct ucred *cred, 503 struct vnode *dvp, struct label *dlabel, 504 struct vnode *vp, struct label *label, 505 struct componentname *cnp); 506 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 507 struct vnode *vp, struct label *label, acl_type_t type); 508 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred, 509 struct vnode *vp, struct label *label, int attrnamespace, 510 const char *name); 511 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 512 struct label *label, struct image_params *imgp, 513 struct label *execlabel); 514 int (*mpo_check_vnode_getacl)(struct ucred *cred, 515 struct vnode *vp, struct label *label, acl_type_t type); 516 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 517 struct vnode *vp, struct label *label, int attrnamespace, 518 const char *name, struct uio *uio); 519 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 520 struct label *dlabel, struct vnode *vp, 521 struct label *label, struct componentname *cnp); 522 int (*mpo_check_vnode_listextattr)(struct ucred *cred, 523 struct vnode *vp, struct label *label, int attrnamespace); 524 int (*mpo_check_vnode_lookup)(struct ucred *cred, 525 struct vnode *dvp, struct label *dlabel, 526 struct componentname *cnp); 527 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 528 struct label *label, int prot, int flags); 529 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 530 struct vnode *vp, struct label *label, int *prot); 531 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 532 struct vnode *vp, struct label *label, int prot); 533 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 534 struct label *label, int acc_mode); 535 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 536 struct ucred *file_cred, struct vnode *vp, 537 struct label *label); 538 int (*mpo_check_vnode_read)(struct ucred *active_cred, 539 struct ucred *file_cred, struct vnode *vp, 540 struct label *label); 541 int (*mpo_check_vnode_readdir)(struct ucred *cred, 542 struct vnode *dvp, struct label *dlabel); 543 int (*mpo_check_vnode_readlink)(struct ucred *cred, 544 struct vnode *vp, struct label *label); 545 int (*mpo_check_vnode_relabel)(struct ucred *cred, 546 struct vnode *vp, struct label *vnodelabel, 547 struct label *newlabel); 548 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 549 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 550 struct label *label, struct componentname *cnp); 551 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 552 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 553 struct label *label, int samedir, 554 struct componentname *cnp); 555 int (*mpo_check_vnode_revoke)(struct ucred *cred, 556 struct vnode *vp, struct label *label); 557 int (*mpo_check_vnode_setacl)(struct ucred *cred, 558 struct vnode *vp, struct label *label, acl_type_t type, 559 struct acl *acl); 560 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 561 struct vnode *vp, struct label *label, int attrnamespace, 562 const char *name, struct uio *uio); 563 int (*mpo_check_vnode_setflags)(struct ucred *cred, 564 struct vnode *vp, struct label *label, u_long flags); 565 int (*mpo_check_vnode_setmode)(struct ucred *cred, 566 struct vnode *vp, struct label *label, mode_t mode); 567 int (*mpo_check_vnode_setowner)(struct ucred *cred, 568 struct vnode *vp, struct label *label, uid_t uid, 569 gid_t gid); 570 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 571 struct vnode *vp, struct label *label, 572 struct timespec atime, struct timespec mtime); 573 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 574 struct ucred *file_cred, struct vnode *vp, 575 struct label *label); 576 int (*mpo_check_vnode_write)(struct ucred *active_cred, 577 struct ucred *file_cred, struct vnode *vp, 578 struct label *label); 579}; 580 581/* 582 * struct mac_policy_conf is the registration structure for policies, and is 583 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT 584 * to register the policy. In general, the fields are immutable, with the 585 * exception of the "security field", run-time flags, and policy list entry, 586 * which are managed by the MAC Framework. Be careful when modifying this 587 * structure, as its layout is statically compiled into all policies. 588 */ 589struct mac_policy_conf { 590 char *mpc_name; /* policy name */ 591 char *mpc_fullname; /* policy full name */ 592 struct mac_policy_ops *mpc_ops; /* policy operations */ 593 int mpc_loadtime_flags; /* flags */ 594 int *mpc_field_off; /* security field */ 595 int mpc_runtime_flags; /* flags */ 596 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 597}; 598 599/* Flags for the mpc_loadtime_flags field. */ 600#define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 601#define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 602#define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 603 604/* Flags for the mpc_runtime_flags field. */ 605#define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 606 607#define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ 608 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 609 #mpname, \ 610 mpfullname, \ 611 mpops, \ 612 mpflags, \ 613 privdata_wanted, \ 614 0, \ 615 }; \ 616 static moduledata_t mpname##_mod = { \ 617 #mpname, \ 618 mac_policy_modevent, \ 619 &mpname##_mac_policy_conf \ 620 }; \ 621 MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \ 622 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 623 SI_ORDER_MIDDLE) 624 625int mac_policy_modevent(module_t mod, int type, void *data); 626 627#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 628 629#endif /* !_SYS_MAC_POLICY_H_ */ 630