mac_policy.h revision 147784
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 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD: head/sys/security/mac/mac_policy.h 147784 2005-07-05 22:49:10Z rwatson $ 36 */ 37/* 38 * Kernel interface for MAC policy modules. 39 */ 40#ifndef _SYS_MAC_POLICY_H_ 41#define _SYS_MAC_POLICY_H_ 42 43/*- 44 * Pluggable access control policy definition structure. 45 * 46 * List of operations that are performed as part of the implementation 47 * of a MAC policy. Policy implementors declare operations with a 48 * mac_policy_ops structure, and using the MAC_POLICY_SET() macro. 49 * If an entry point is not declared, then then the policy will be ignored 50 * during evaluation of that event or check. 51 * 52 * Operations are sorted first by general class of operation, then 53 * alphabetically. 54 */ 55struct acl; 56struct bpf_d; 57struct componentname; 58struct devfs_dirent; 59struct ifnet; 60struct image_params; 61struct inpcb; 62struct ipq; 63struct ksem; 64struct label; 65struct mac_policy_conf; 66struct mbuf; 67struct mount; 68struct msqid_kernel; 69struct pipepair; 70struct proc; 71struct sbuf; 72struct semid_kernel; 73struct shmid_kernel; 74struct sockaddr; 75struct socket; 76struct sysctl_oid; 77struct sysctl_req; 78struct thread; 79struct ucred; 80struct uio; 81struct vattr; 82struct vnode; 83struct mac_policy_ops { 84 /* 85 * Policy module operations. 86 */ 87 void (*mpo_destroy)(struct mac_policy_conf *mpc); 88 void (*mpo_init)(struct mac_policy_conf *mpc); 89 90 /* 91 * General policy-directed security system call so that policies may 92 * implement new services without reserving explicit system call 93 * numbers. 94 */ 95 int (*mpo_syscall)(struct thread *td, int call, void *arg); 96 97 /* 98 * Label operations. Initialize label storage, destroy label 99 * storage, recycle for re-use without init/destroy, copy a label to 100 * initialized storage, and externalize/internalize from/to 101 * initialized storage. 102 */ 103 void (*mpo_init_bpfdesc_label)(struct label *label); 104 void (*mpo_init_cred_label)(struct label *label); 105 void (*mpo_init_devfsdirent_label)(struct label *label); 106 void (*mpo_init_ifnet_label)(struct label *label); 107 int (*mpo_init_inpcb_label)(struct label *label, int flag); 108 void (*mpo_init_sysv_msgmsg_label)(struct label *label); 109 void (*mpo_init_sysv_msgqueue_label)(struct label *label); 110 void (*mpo_init_sysv_sem_label)(struct label *label); 111 void (*mpo_init_sysv_shm_label)(struct label *label); 112 int (*mpo_init_ipq_label)(struct label *label, int flag); 113 int (*mpo_init_mbuf_label)(struct label *label, int flag); 114 void (*mpo_init_mount_label)(struct label *label); 115 void (*mpo_init_mount_fs_label)(struct label *label); 116 int (*mpo_init_socket_label)(struct label *label, int flag); 117 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 118 void (*mpo_init_pipe_label)(struct label *label); 119 void (*mpo_init_posix_sem_label)(struct label *label); 120 void (*mpo_init_proc_label)(struct label *label); 121 void (*mpo_init_vnode_label)(struct label *label); 122 void (*mpo_destroy_bpfdesc_label)(struct label *label); 123 void (*mpo_destroy_cred_label)(struct label *label); 124 void (*mpo_destroy_devfsdirent_label)(struct label *label); 125 void (*mpo_destroy_ifnet_label)(struct label *label); 126 void (*mpo_destroy_inpcb_label)(struct label *label); 127 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label); 128 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label); 129 void (*mpo_destroy_sysv_sem_label)(struct label *label); 130 void (*mpo_destroy_sysv_shm_label)(struct label *label); 131 void (*mpo_destroy_ipq_label)(struct label *label); 132 void (*mpo_destroy_mbuf_label)(struct label *label); 133 void (*mpo_destroy_mount_label)(struct label *label); 134 void (*mpo_destroy_mount_fs_label)(struct label *label); 135 void (*mpo_destroy_socket_label)(struct label *label); 136 void (*mpo_destroy_socket_peer_label)(struct label *label); 137 void (*mpo_destroy_pipe_label)(struct label *label); 138 void (*mpo_destroy_posix_sem_label)(struct label *label); 139 void (*mpo_destroy_proc_label)(struct label *label); 140 void (*mpo_destroy_vnode_label)(struct label *label); 141 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel); 142 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel); 143 void (*mpo_cleanup_sysv_sem)(struct label *semalabel); 144 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel); 145 void (*mpo_copy_cred_label)(struct label *src, 146 struct label *dest); 147 void (*mpo_copy_ifnet_label)(struct label *src, 148 struct label *dest); 149 void (*mpo_copy_mbuf_label)(struct label *src, 150 struct label *dest); 151 void (*mpo_copy_pipe_label)(struct label *src, 152 struct label *dest); 153 void (*mpo_copy_socket_label)(struct label *src, 154 struct label *dest); 155 void (*mpo_copy_vnode_label)(struct label *src, 156 struct label *dest); 157 int (*mpo_externalize_cred_label)(struct label *label, 158 char *element_name, struct sbuf *sb, int *claimed); 159 int (*mpo_externalize_ifnet_label)(struct label *label, 160 char *element_name, struct sbuf *sb, int *claimed); 161 int (*mpo_externalize_pipe_label)(struct label *label, 162 char *element_name, struct sbuf *sb, int *claimed); 163 int (*mpo_externalize_socket_label)(struct label *label, 164 char *element_name, struct sbuf *sb, int *claimed); 165 int (*mpo_externalize_socket_peer_label)(struct label *label, 166 char *element_name, struct sbuf *sb, int *claimed); 167 int (*mpo_externalize_vnode_label)(struct label *label, 168 char *element_name, struct sbuf *sb, int *claimed); 169 int (*mpo_internalize_cred_label)(struct label *label, 170 char *element_name, char *element_data, int *claimed); 171 int (*mpo_internalize_ifnet_label)(struct label *label, 172 char *element_name, char *element_data, int *claimed); 173 int (*mpo_internalize_pipe_label)(struct label *label, 174 char *element_name, char *element_data, int *claimed); 175 int (*mpo_internalize_socket_label)(struct label *label, 176 char *element_name, char *element_data, int *claimed); 177 int (*mpo_internalize_vnode_label)(struct label *label, 178 char *element_name, char *element_data, int *claimed); 179 180 /* 181 * Labeling event operations: file system objects, and things that 182 * look a lot like file system objects. 183 */ 184 void (*mpo_associate_vnode_devfs)(struct mount *mp, 185 struct label *fslabel, struct devfs_dirent *de, 186 struct label *delabel, struct vnode *vp, 187 struct label *vlabel); 188 int (*mpo_associate_vnode_extattr)(struct mount *mp, 189 struct label *fslabel, struct vnode *vp, 190 struct label *vlabel); 191 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 192 struct label *fslabel, struct vnode *vp, 193 struct label *vlabel); 194 void (*mpo_create_devfs_device)(struct mount *mp, struct cdev *dev, 195 struct devfs_dirent *de, struct label *label); 196 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname, 197 int dirnamelen, struct devfs_dirent *de, 198 struct label *label); 199 void (*mpo_create_devfs_symlink)(struct ucred *cred, 200 struct mount *mp, struct devfs_dirent *dd, 201 struct label *ddlabel, struct devfs_dirent *de, 202 struct label *delabel); 203 int (*mpo_create_vnode_extattr)(struct ucred *cred, 204 struct mount *mp, struct label *fslabel, 205 struct vnode *dvp, struct label *dlabel, 206 struct vnode *vp, struct label *vlabel, 207 struct componentname *cnp); 208 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 209 struct label *mntlabel, struct label *fslabel); 210 void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp, 211 struct label *mountlabel, struct label *fslabel); 212 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 213 struct label *vnodelabel, struct label *label); 214 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 215 struct vnode *vp, struct label *vlabel, 216 struct label *intlabel); 217 void (*mpo_update_devfsdirent)(struct mount *mp, 218 struct devfs_dirent *devfs_dirent, 219 struct label *direntlabel, struct vnode *vp, 220 struct label *vnodelabel); 221 222 /* 223 * Labeling event operations: IPC objects. 224 */ 225 void (*mpo_create_mbuf_from_socket)(struct socket *so, 226 struct label *socketlabel, struct mbuf *m, 227 struct label *mbuflabel); 228 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 229 struct label *socketlabel); 230 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 231 struct label *oldsocketlabel, struct socket *newsocket, 232 struct label *newsocketlabel); 233 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 234 struct label *oldlabel, struct label *newlabel); 235 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp, 236 struct label *oldlabel, struct label *newlabel); 237 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 238 struct label *mbuflabel, struct socket *so, 239 struct label *socketpeerlabel); 240 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 241 struct label *oldsocketlabel, struct socket *newsocket, 242 struct label *newsocketpeerlabel); 243 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp, 244 struct label *pipelabel); 245 246 /* 247 * Labeling event operations: System V IPC primitives. 248 */ 249 void (*mpo_create_sysv_msgmsg)(struct ucred *cred, 250 struct msqid_kernel *msqkptr, struct label *msqlabel, 251 struct msg *msgptr, struct label *msglabel); 252 void (*mpo_create_sysv_msgqueue)(struct ucred *cred, 253 struct msqid_kernel *msqkptr, struct label *msqlabel); 254 void (*mpo_create_sysv_sem)(struct ucred *cred, 255 struct semid_kernel *semakptr, struct label *semalabel); 256 void (*mpo_create_sysv_shm)(struct ucred *cred, 257 struct shmid_kernel *shmsegptr, struct label *shmlabel); 258 259 /* 260 * Labeling event operations: POSIX (global/inter-process) semaphores. 261 */ 262 void (*mpo_create_posix_sem)(struct ucred *cred, 263 struct ksem *ksemptr, struct label *ks_label); 264 265 /* 266 * Labeling event operations: network objects. 267 */ 268 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 269 struct label *bpflabel); 270 void (*mpo_create_ifnet)(struct ifnet *ifnet, 271 struct label *ifnetlabel); 272 void (*mpo_create_inpcb_from_socket)(struct socket *so, 273 struct label *solabel, struct inpcb *inp, 274 struct label *inplabel); 275 void (*mpo_create_ipq)(struct mbuf *fragment, 276 struct label *fragmentlabel, struct ipq *ipq, 277 struct label *ipqlabel); 278 void (*mpo_create_datagram_from_ipq) 279 (struct ipq *ipq, struct label *ipqlabel, 280 struct mbuf *datagram, struct label *datagramlabel); 281 void (*mpo_create_fragment)(struct mbuf *datagram, 282 struct label *datagramlabel, struct mbuf *fragment, 283 struct label *fragmentlabel); 284 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp, 285 struct label *inplabel, struct mbuf *m, 286 struct label *mlabel); 287 void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf, 288 struct label *oldlabel, struct mbuf *newmbuf, 289 struct label *newlabel); 290 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 291 struct label *ifnetlabel, struct mbuf *mbuf, 292 struct label *mbuflabel); 293 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 294 struct label *bpflabel, struct mbuf *mbuf, 295 struct label *mbuflabel); 296 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 297 struct label *ifnetlabel, struct mbuf *mbuf, 298 struct label *mbuflabel); 299 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 300 struct label *oldmbuflabel, struct ifnet *ifnet, 301 struct label *ifnetlabel, struct mbuf *newmbuf, 302 struct label *newmbuflabel); 303 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 304 struct label *oldmbuflabel, struct mbuf *newmbuf, 305 struct label *newmbuflabel); 306 int (*mpo_fragment_match)(struct mbuf *fragment, 307 struct label *fragmentlabel, struct ipq *ipq, 308 struct label *ipqlabel); 309 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m, 310 struct label *mlabel); 311 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel); 312 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 313 struct label *ifnetlabel, struct label *newlabel); 314 void (*mpo_update_ipq)(struct mbuf *fragment, 315 struct label *fragmentlabel, struct ipq *ipq, 316 struct label *ipqlabel); 317 void (*mpo_inpcb_sosetlabel)(struct socket *so, 318 struct label *label, struct inpcb *inp, 319 struct label *inplabel); 320 321 /* 322 * Labeling event operations: processes. 323 */ 324 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 325 struct vnode *vp, struct label *vnodelabel, 326 struct label *interpvnodelabel, 327 struct image_params *imgp, struct label *execlabel); 328 int (*mpo_execve_will_transition)(struct ucred *old, 329 struct vnode *vp, struct label *vnodelabel, 330 struct label *interpvnodelabel, 331 struct image_params *imgp, struct label *execlabel); 332 void (*mpo_create_proc0)(struct ucred *cred); 333 void (*mpo_create_proc1)(struct ucred *cred); 334 void (*mpo_relabel_cred)(struct ucred *cred, 335 struct label *newlabel); 336 void (*mpo_thread_userret)(struct thread *thread); 337 338 /* 339 * Access control checks. 340 */ 341 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 342 struct label *bpflabel, struct ifnet *ifnet, 343 struct label *ifnetlabel); 344 int (*mpo_check_cred_relabel)(struct ucred *cred, 345 struct label *newlabel); 346 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 347 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 348 struct ifnet *ifnet, struct label *ifnetlabel, 349 struct label *newlabel); 350 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 351 struct label *ifnetlabel, struct mbuf *m, 352 struct label *mbuflabel); 353 int (*mpo_check_inpcb_deliver)(struct inpcb *inp, 354 struct label *inplabel, struct mbuf *m, 355 struct label *mlabel); 356 int (*mpo_check_sysv_msgmsq)(struct ucred *cred, 357 struct msg *msgptr, struct label *msglabel, 358 struct msqid_kernel *msqkptr, struct label *msqklabel); 359 int (*mpo_check_sysv_msgrcv)(struct ucred *cred, 360 struct msg *msgptr, struct label *msglabel); 361 int (*mpo_check_sysv_msgrmid)(struct ucred *cred, 362 struct msg *msgptr, struct label *msglabel); 363 int (*mpo_check_sysv_msqget)(struct ucred *cred, 364 struct msqid_kernel *msqkptr, struct label *msqklabel); 365 int (*mpo_check_sysv_msqsnd)(struct ucred *cred, 366 struct msqid_kernel *msqkptr, struct label *msqklabel); 367 int (*mpo_check_sysv_msqrcv)(struct ucred *cred, 368 struct msqid_kernel *msqkptr, struct label *msqklabel); 369 int (*mpo_check_sysv_msqctl)(struct ucred *cred, 370 struct msqid_kernel *msqkptr, struct label *msqklabel, 371 int cmd); 372 int (*mpo_check_sysv_semctl)(struct ucred *cred, 373 struct semid_kernel *semakptr, struct label *semaklabel, 374 int cmd); 375 int (*mpo_check_sysv_semget)(struct ucred *cred, 376 struct semid_kernel *semakptr, struct label *semaklabel); 377 int (*mpo_check_sysv_semop)(struct ucred *cred, 378 struct semid_kernel *semakptr, struct label *semaklabel, 379 size_t accesstype); 380 int (*mpo_check_sysv_shmat)(struct ucred *cred, 381 struct shmid_kernel *shmsegptr, 382 struct label *shmseglabel, int shmflg); 383 int (*mpo_check_sysv_shmctl)(struct ucred *cred, 384 struct shmid_kernel *shmsegptr, 385 struct label *shmseglabel, int cmd); 386 int (*mpo_check_sysv_shmdt)(struct ucred *cred, 387 struct shmid_kernel *shmsegptr, 388 struct label *shmseglabel); 389 int (*mpo_check_sysv_shmget)(struct ucred *cred, 390 struct shmid_kernel *shmsegptr, 391 struct label *shmseglabel, int shmflg); 392 int (*mpo_check_kenv_dump)(struct ucred *cred); 393 int (*mpo_check_kenv_get)(struct ucred *cred, char *name); 394 int (*mpo_check_kenv_set)(struct ucred *cred, char *name, 395 char *value); 396 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name); 397 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp, 398 struct label *vlabel); 399 int (*mpo_check_kld_stat)(struct ucred *cred); 400 int (*mpo_check_kld_unload)(struct ucred *cred); 401 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 402 struct label *mntlabel); 403 int (*mpo_check_pipe_ioctl)(struct ucred *cred, 404 struct pipepair *pp, struct label *pipelabel, 405 unsigned long cmd, void *data); 406 int (*mpo_check_pipe_poll)(struct ucred *cred, 407 struct pipepair *pp, struct label *pipelabel); 408 int (*mpo_check_pipe_read)(struct ucred *cred, 409 struct pipepair *pp, struct label *pipelabel); 410 int (*mpo_check_pipe_relabel)(struct ucred *cred, 411 struct pipepair *pp, struct label *pipelabel, 412 struct label *newlabel); 413 int (*mpo_check_pipe_stat)(struct ucred *cred, 414 struct pipepair *pp, struct label *pipelabel); 415 int (*mpo_check_pipe_write)(struct ucred *cred, 416 struct pipepair *pp, struct label *pipelabel); 417 int (*mpo_check_posix_sem_destroy)(struct ucred *cred, 418 struct ksem *ksemptr, struct label *ks_label); 419 int (*mpo_check_posix_sem_getvalue)(struct ucred *cred, 420 struct ksem *ksemptr, struct label *ks_label); 421 int (*mpo_check_posix_sem_open)(struct ucred *cred, 422 struct ksem *ksemptr, struct label *ks_label); 423 int (*mpo_check_posix_sem_post)(struct ucred *cred, 424 struct ksem *ksemptr, struct label *ks_label); 425 int (*mpo_check_posix_sem_unlink)(struct ucred *cred, 426 struct ksem *ksemptr, struct label *ks_label); 427 int (*mpo_check_posix_sem_wait)(struct ucred *cred, 428 struct ksem *ksemptr, struct label *ks_label); 429 int (*mpo_check_proc_debug)(struct ucred *cred, 430 struct proc *proc); 431 int (*mpo_check_proc_sched)(struct ucred *cred, 432 struct proc *proc); 433 int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid); 434 int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid); 435 int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid); 436 int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid); 437 int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups, 438 gid_t *gidset); 439 int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid, 440 uid_t euid); 441 int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid, 442 gid_t egid); 443 int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid, 444 uid_t euid, uid_t suid); 445 int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid, 446 gid_t egid, gid_t sgid); 447 int (*mpo_check_proc_signal)(struct ucred *cred, 448 struct proc *proc, int signum); 449 int (*mpo_check_proc_wait)(struct ucred *cred, 450 struct proc *proc); 451 int (*mpo_check_socket_accept)(struct ucred *cred, 452 struct socket *so, struct label *socketlabel); 453 int (*mpo_check_socket_bind)(struct ucred *cred, 454 struct socket *so, struct label *socketlabel, 455 struct sockaddr *sockaddr); 456 int (*mpo_check_socket_connect)(struct ucred *cred, 457 struct socket *so, struct label *socketlabel, 458 struct sockaddr *sockaddr); 459 int (*mpo_check_socket_create)(struct ucred *cred, int domain, 460 int type, int protocol); 461 int (*mpo_check_socket_deliver)(struct socket *so, 462 struct label *socketlabel, struct mbuf *m, 463 struct label *mbuflabel); 464 int (*mpo_check_socket_listen)(struct ucred *cred, 465 struct socket *so, struct label *socketlabel); 466 int (*mpo_check_socket_poll)(struct ucred *cred, 467 struct socket *so, struct label *socketlabel); 468 int (*mpo_check_socket_receive)(struct ucred *cred, 469 struct socket *so, struct label *socketlabel); 470 int (*mpo_check_socket_relabel)(struct ucred *cred, 471 struct socket *so, struct label *socketlabel, 472 struct label *newlabel); 473 int (*mpo_check_socket_send)(struct ucred *cred, 474 struct socket *so, struct label *socketlabel); 475 int (*mpo_check_socket_stat)(struct ucred *cred, 476 struct socket *so, struct label *socketlabel); 477 int (*mpo_check_socket_visible)(struct ucred *cred, 478 struct socket *so, struct label *socketlabel); 479 int (*mpo_check_sysarch_ioperm)(struct ucred *cred); 480 int (*mpo_check_system_acct)(struct ucred *cred, 481 struct vnode *vp, struct label *vlabel); 482 int (*mpo_check_system_nfsd)(struct ucred *cred); 483 int (*mpo_check_system_reboot)(struct ucred *cred, int howto); 484 int (*mpo_check_system_settime)(struct ucred *cred); 485 int (*mpo_check_system_swapon)(struct ucred *cred, 486 struct vnode *vp, struct label *label); 487 int (*mpo_check_system_swapoff)(struct ucred *cred, 488 struct vnode *vp, struct label *label); 489 int (*mpo_check_system_sysctl)(struct ucred *cred, 490 struct sysctl_oid *oidp, void *arg1, int arg2, 491 struct sysctl_req *req); 492 int (*mpo_check_vnode_access)(struct ucred *cred, 493 struct vnode *vp, struct label *label, int acc_mode); 494 int (*mpo_check_vnode_chdir)(struct ucred *cred, 495 struct vnode *dvp, struct label *dlabel); 496 int (*mpo_check_vnode_chroot)(struct ucred *cred, 497 struct vnode *dvp, struct label *dlabel); 498 int (*mpo_check_vnode_create)(struct ucred *cred, 499 struct vnode *dvp, struct label *dlabel, 500 struct componentname *cnp, struct vattr *vap); 501 int (*mpo_check_vnode_delete)(struct ucred *cred, 502 struct vnode *dvp, struct label *dlabel, 503 struct vnode *vp, struct label *label, 504 struct componentname *cnp); 505 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 506 struct vnode *vp, struct label *label, acl_type_t type); 507 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred, 508 struct vnode *vp, struct label *label, int attrnamespace, 509 const char *name); 510 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 511 struct label *label, struct image_params *imgp, 512 struct label *execlabel); 513 int (*mpo_check_vnode_getacl)(struct ucred *cred, 514 struct vnode *vp, struct label *label, acl_type_t type); 515 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 516 struct vnode *vp, struct label *label, int attrnamespace, 517 const char *name, struct uio *uio); 518 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 519 struct label *dlabel, struct vnode *vp, 520 struct label *label, struct componentname *cnp); 521 int (*mpo_check_vnode_listextattr)(struct ucred *cred, 522 struct vnode *vp, struct label *label, int attrnamespace); 523 int (*mpo_check_vnode_lookup)(struct ucred *cred, 524 struct vnode *dvp, struct label *dlabel, 525 struct componentname *cnp); 526 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 527 struct label *label, int prot, int flags); 528 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 529 struct vnode *vp, struct label *label, int *prot); 530 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 531 struct vnode *vp, struct label *label, int prot); 532 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 533 struct label *label, int acc_mode); 534 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 535 struct ucred *file_cred, struct vnode *vp, 536 struct label *label); 537 int (*mpo_check_vnode_read)(struct ucred *active_cred, 538 struct ucred *file_cred, struct vnode *vp, 539 struct label *label); 540 int (*mpo_check_vnode_readdir)(struct ucred *cred, 541 struct vnode *dvp, struct label *dlabel); 542 int (*mpo_check_vnode_readlink)(struct ucred *cred, 543 struct vnode *vp, struct label *label); 544 int (*mpo_check_vnode_relabel)(struct ucred *cred, 545 struct vnode *vp, struct label *vnodelabel, 546 struct label *newlabel); 547 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 548 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 549 struct label *label, struct componentname *cnp); 550 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 551 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 552 struct label *label, int samedir, 553 struct componentname *cnp); 554 int (*mpo_check_vnode_revoke)(struct ucred *cred, 555 struct vnode *vp, struct label *label); 556 int (*mpo_check_vnode_setacl)(struct ucred *cred, 557 struct vnode *vp, struct label *label, acl_type_t type, 558 struct acl *acl); 559 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 560 struct vnode *vp, struct label *label, int attrnamespace, 561 const char *name, struct uio *uio); 562 int (*mpo_check_vnode_setflags)(struct ucred *cred, 563 struct vnode *vp, struct label *label, u_long flags); 564 int (*mpo_check_vnode_setmode)(struct ucred *cred, 565 struct vnode *vp, struct label *label, mode_t mode); 566 int (*mpo_check_vnode_setowner)(struct ucred *cred, 567 struct vnode *vp, struct label *label, uid_t uid, 568 gid_t gid); 569 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 570 struct vnode *vp, struct label *label, 571 struct timespec atime, struct timespec mtime); 572 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 573 struct ucred *file_cred, struct vnode *vp, 574 struct label *label); 575 int (*mpo_check_vnode_write)(struct ucred *active_cred, 576 struct ucred *file_cred, struct vnode *vp, 577 struct label *label); 578}; 579 580/* 581 * struct mac_policy_conf is the registration structure for policies, and is 582 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT 583 * to register the policy. In general, the fields are immutable, with the 584 * exception of the "security field", run-time flags, and policy list entry, 585 * which are managed by the MAC Framework. Be careful when modifying this 586 * structure, as its layout is statically compiled into all policies. 587 */ 588struct mac_policy_conf { 589 char *mpc_name; /* policy name */ 590 char *mpc_fullname; /* policy full name */ 591 struct mac_policy_ops *mpc_ops; /* policy operations */ 592 int mpc_loadtime_flags; /* flags */ 593 int *mpc_field_off; /* security field */ 594 int mpc_runtime_flags; /* flags */ 595 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 596}; 597 598/* Flags for the mpc_loadtime_flags field. */ 599#define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 600#define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 601#define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 602 603/* Flags for the mpc_runtime_flags field. */ 604#define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 605 606#define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ 607 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 608 #mpname, \ 609 mpfullname, \ 610 mpops, \ 611 mpflags, \ 612 privdata_wanted, \ 613 0, \ 614 }; \ 615 static moduledata_t mpname##_mod = { \ 616 #mpname, \ 617 mac_policy_modevent, \ 618 &mpname##_mac_policy_conf \ 619 }; \ 620 MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \ 621 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 622 SI_ORDER_MIDDLE) 623 624int mac_policy_modevent(module_t mod, int type, void *data); 625 626#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 627 628#endif /* !_SYS_MAC_POLICY_H_ */ 629