mac_policy.h revision 147091
1/*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc. 4 * All rights reserved. 5 * 6 * This software was developed by Robert Watson for the TrustedBSD Project. 7 * 8 * This software was developed for the FreeBSD Project in part by Network 9 * Associates Laboratories, the Security Research Division of Network 10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), 11 * as part of the DARPA CHATS research program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/security/mac/mac_policy.h 147091 2005-06-07 05:03:28Z rwatson $ 35 */ 36/* 37 * Kernel interface for MAC policy modules. 38 */ 39#ifndef _SYS_MAC_POLICY_H_ 40#define _SYS_MAC_POLICY_H_ 41 42/*- 43 * Pluggable access control policy definition structure. 44 * 45 * List of operations that are performed as part of the implementation 46 * of a MAC policy. Policy implementors declare operations with a 47 * mac_policy_ops structure, and using the MAC_POLICY_SET() macro. 48 * If an entry point is not declared, then then the policy will be ignored 49 * during evaluation of that event or check. 50 * 51 * Operations are sorted first by general class of operation, then 52 * alphabetically. 53 */ 54struct acl; 55struct bpf_d; 56struct componentname; 57struct devfs_dirent; 58struct ifnet; 59struct image_params; 60struct inpcb; 61struct ipq; 62struct ksem; 63struct label; 64struct mac_policy_conf; 65struct mbuf; 66struct mount; 67struct msqid_kernel; 68struct pipepair; 69struct proc; 70struct sbuf; 71struct semid_kernel; 72struct shmid_kernel; 73struct sockaddr; 74struct socket; 75struct sysctl_oid; 76struct sysctl_req; 77struct thread; 78struct ucred; 79struct uio; 80struct vattr; 81struct vnode; 82struct mac_policy_ops { 83 /* 84 * Policy module operations. 85 */ 86 void (*mpo_destroy)(struct mac_policy_conf *mpc); 87 void (*mpo_init)(struct mac_policy_conf *mpc); 88 89 /* 90 * General policy-directed security system call so that policies may 91 * implement new services without reserving explicit system call 92 * numbers. 93 */ 94 int (*mpo_syscall)(struct thread *td, int call, void *arg); 95 96 /* 97 * Label operations. Initialize label storage, destroy label 98 * storage, recycle for re-use without init/destroy, copy a label to 99 * initialized storage, and externalize/internalize from/to 100 * initialized storage. 101 */ 102 void (*mpo_init_bpfdesc_label)(struct label *label); 103 void (*mpo_init_cred_label)(struct label *label); 104 void (*mpo_init_devfsdirent_label)(struct label *label); 105 void (*mpo_init_ifnet_label)(struct label *label); 106 int (*mpo_init_inpcb_label)(struct label *label, int flag); 107 void (*mpo_init_sysv_msgmsg_label)(struct label *label); 108 void (*mpo_init_sysv_msgqueue_label)(struct label *label); 109 void (*mpo_init_sysv_sem_label)(struct label *label); 110 void (*mpo_init_sysv_shm_label)(struct label *label); 111 int (*mpo_init_ipq_label)(struct label *label, int flag); 112 int (*mpo_init_mbuf_label)(struct label *label, int flag); 113 void (*mpo_init_mount_label)(struct label *label); 114 void (*mpo_init_mount_fs_label)(struct label *label); 115 int (*mpo_init_socket_label)(struct label *label, int flag); 116 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 117 void (*mpo_init_pipe_label)(struct label *label); 118 void (*mpo_init_posix_sem_label)(struct label *label); 119 void (*mpo_init_proc_label)(struct label *label); 120 void (*mpo_init_vnode_label)(struct label *label); 121 void (*mpo_destroy_bpfdesc_label)(struct label *label); 122 void (*mpo_destroy_cred_label)(struct label *label); 123 void (*mpo_destroy_devfsdirent_label)(struct label *label); 124 void (*mpo_destroy_ifnet_label)(struct label *label); 125 void (*mpo_destroy_inpcb_label)(struct label *label); 126 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label); 127 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label); 128 void (*mpo_destroy_sysv_sem_label)(struct label *label); 129 void (*mpo_destroy_sysv_shm_label)(struct label *label); 130 void (*mpo_destroy_ipq_label)(struct label *label); 131 void (*mpo_destroy_mbuf_label)(struct label *label); 132 void (*mpo_destroy_mount_label)(struct label *label); 133 void (*mpo_destroy_mount_fs_label)(struct label *label); 134 void (*mpo_destroy_socket_label)(struct label *label); 135 void (*mpo_destroy_socket_peer_label)(struct label *label); 136 void (*mpo_destroy_pipe_label)(struct label *label); 137 void (*mpo_destroy_posix_sem_label)(struct label *label); 138 void (*mpo_destroy_proc_label)(struct label *label); 139 void (*mpo_destroy_vnode_label)(struct label *label); 140 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel); 141 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel); 142 void (*mpo_cleanup_sysv_sem)(struct label *semalabel); 143 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel); 144 void (*mpo_copy_cred_label)(struct label *src, 145 struct label *dest); 146 void (*mpo_copy_ifnet_label)(struct label *src, 147 struct label *dest); 148 void (*mpo_copy_mbuf_label)(struct label *src, 149 struct label *dest); 150 void (*mpo_copy_pipe_label)(struct label *src, 151 struct label *dest); 152 void (*mpo_copy_socket_label)(struct label *src, 153 struct label *dest); 154 void (*mpo_copy_vnode_label)(struct label *src, 155 struct label *dest); 156 int (*mpo_externalize_cred_label)(struct label *label, 157 char *element_name, struct sbuf *sb, int *claimed); 158 int (*mpo_externalize_ifnet_label)(struct label *label, 159 char *element_name, struct sbuf *sb, int *claimed); 160 int (*mpo_externalize_pipe_label)(struct label *label, 161 char *element_name, struct sbuf *sb, int *claimed); 162 int (*mpo_externalize_socket_label)(struct label *label, 163 char *element_name, struct sbuf *sb, int *claimed); 164 int (*mpo_externalize_socket_peer_label)(struct label *label, 165 char *element_name, struct sbuf *sb, int *claimed); 166 int (*mpo_externalize_vnode_label)(struct label *label, 167 char *element_name, struct sbuf *sb, int *claimed); 168 int (*mpo_internalize_cred_label)(struct label *label, 169 char *element_name, char *element_data, int *claimed); 170 int (*mpo_internalize_ifnet_label)(struct label *label, 171 char *element_name, char *element_data, int *claimed); 172 int (*mpo_internalize_pipe_label)(struct label *label, 173 char *element_name, char *element_data, int *claimed); 174 int (*mpo_internalize_socket_label)(struct label *label, 175 char *element_name, char *element_data, int *claimed); 176 int (*mpo_internalize_vnode_label)(struct label *label, 177 char *element_name, char *element_data, int *claimed); 178 179 /* 180 * Labeling event operations: file system objects, and things that 181 * look a lot like file system objects. 182 */ 183 void (*mpo_associate_vnode_devfs)(struct mount *mp, 184 struct label *fslabel, struct devfs_dirent *de, 185 struct label *delabel, struct vnode *vp, 186 struct label *vlabel); 187 int (*mpo_associate_vnode_extattr)(struct mount *mp, 188 struct label *fslabel, struct vnode *vp, 189 struct label *vlabel); 190 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 191 struct label *fslabel, struct vnode *vp, 192 struct label *vlabel); 193 void (*mpo_create_devfs_device)(struct mount *mp, struct cdev *dev, 194 struct devfs_dirent *de, struct label *label); 195 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname, 196 int dirnamelen, struct devfs_dirent *de, 197 struct label *label); 198 void (*mpo_create_devfs_symlink)(struct ucred *cred, 199 struct mount *mp, struct devfs_dirent *dd, 200 struct label *ddlabel, struct devfs_dirent *de, 201 struct label *delabel); 202 int (*mpo_create_vnode_extattr)(struct ucred *cred, 203 struct mount *mp, struct label *fslabel, 204 struct vnode *dvp, struct label *dlabel, 205 struct vnode *vp, struct label *vlabel, 206 struct componentname *cnp); 207 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 208 struct label *mntlabel, struct label *fslabel); 209 void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp, 210 struct label *mountlabel, struct label *fslabel); 211 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 212 struct label *vnodelabel, struct label *label); 213 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 214 struct vnode *vp, struct label *vlabel, 215 struct label *intlabel); 216 void (*mpo_update_devfsdirent)(struct mount *mp, 217 struct devfs_dirent *devfs_dirent, 218 struct label *direntlabel, struct vnode *vp, 219 struct label *vnodelabel); 220 221 /* 222 * Labeling event operations: IPC objects. 223 */ 224 void (*mpo_create_mbuf_from_socket)(struct socket *so, 225 struct label *socketlabel, struct mbuf *m, 226 struct label *mbuflabel); 227 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 228 struct label *socketlabel); 229 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 230 struct label *oldsocketlabel, struct socket *newsocket, 231 struct label *newsocketlabel); 232 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 233 struct label *oldlabel, struct label *newlabel); 234 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp, 235 struct label *oldlabel, struct label *newlabel); 236 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 237 struct label *mbuflabel, struct socket *so, 238 struct label *socketpeerlabel); 239 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 240 struct label *oldsocketlabel, struct socket *newsocket, 241 struct label *newsocketpeerlabel); 242 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp, 243 struct label *pipelabel); 244 245 /* 246 * Labeling event operations: System V IPC primitives. 247 */ 248 void (*mpo_create_sysv_msgmsg)(struct ucred *cred, 249 struct msqid_kernel *msqkptr, struct label *msqlabel, 250 struct msg *msgptr, struct label *msglabel); 251 void (*mpo_create_sysv_msgqueue)(struct ucred *cred, 252 struct msqid_kernel *msqkptr, struct label *msqlabel); 253 void (*mpo_create_sysv_sem)(struct ucred *cred, 254 struct semid_kernel *semakptr, struct label *semalabel); 255 void (*mpo_create_sysv_shm)(struct ucred *cred, 256 struct shmid_kernel *shmsegptr, struct label *shmlabel); 257 258 /* 259 * Labeling event operations: POSIX (global/inter-process) semaphores. 260 */ 261 void (*mpo_create_posix_sem)(struct ucred *cred, 262 struct ksem *ksemptr, struct label *ks_label); 263 264 /* 265 * Labeling event operations: network objects. 266 */ 267 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 268 struct label *bpflabel); 269 void (*mpo_create_ifnet)(struct ifnet *ifnet, 270 struct label *ifnetlabel); 271 void (*mpo_create_inpcb_from_socket)(struct socket *so, 272 struct label *solabel, struct inpcb *inp, 273 struct label *inplabel); 274 void (*mpo_create_ipq)(struct mbuf *fragment, 275 struct label *fragmentlabel, struct ipq *ipq, 276 struct label *ipqlabel); 277 void (*mpo_create_datagram_from_ipq) 278 (struct ipq *ipq, struct label *ipqlabel, 279 struct mbuf *datagram, struct label *datagramlabel); 280 void (*mpo_create_fragment)(struct mbuf *datagram, 281 struct label *datagramlabel, struct mbuf *fragment, 282 struct label *fragmentlabel); 283 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp, 284 struct label *inplabel, struct mbuf *m, 285 struct label *mlabel); 286 void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf, 287 struct label *oldlabel, struct mbuf *newmbuf, 288 struct label *newlabel); 289 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 290 struct label *ifnetlabel, struct mbuf *mbuf, 291 struct label *mbuflabel); 292 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 293 struct label *bpflabel, struct mbuf *mbuf, 294 struct label *mbuflabel); 295 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 296 struct label *ifnetlabel, struct mbuf *mbuf, 297 struct label *mbuflabel); 298 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 299 struct label *oldmbuflabel, struct ifnet *ifnet, 300 struct label *ifnetlabel, struct mbuf *newmbuf, 301 struct label *newmbuflabel); 302 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 303 struct label *oldmbuflabel, struct mbuf *newmbuf, 304 struct label *newmbuflabel); 305 int (*mpo_fragment_match)(struct mbuf *fragment, 306 struct label *fragmentlabel, struct ipq *ipq, 307 struct label *ipqlabel); 308 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m, 309 struct label *mlabel); 310 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel); 311 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 312 struct label *ifnetlabel, struct label *newlabel); 313 void (*mpo_update_ipq)(struct mbuf *fragment, 314 struct label *fragmentlabel, struct ipq *ipq, 315 struct label *ipqlabel); 316 void (*mpo_inpcb_sosetlabel)(struct socket *so, 317 struct label *label, struct inpcb *inp, 318 struct label *inplabel); 319 320 /* 321 * Labeling event operations: processes. 322 */ 323 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 324 struct vnode *vp, struct label *vnodelabel, 325 struct label *interpvnodelabel, 326 struct image_params *imgp, struct label *execlabel); 327 int (*mpo_execve_will_transition)(struct ucred *old, 328 struct vnode *vp, struct label *vnodelabel, 329 struct label *interpvnodelabel, 330 struct image_params *imgp, struct label *execlabel); 331 void (*mpo_create_proc0)(struct ucred *cred); 332 void (*mpo_create_proc1)(struct ucred *cred); 333 void (*mpo_relabel_cred)(struct ucred *cred, 334 struct label *newlabel); 335 void (*mpo_thread_userret)(struct thread *thread); 336 337 /* 338 * Access control checks. 339 */ 340 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 341 struct label *bpflabel, struct ifnet *ifnet, 342 struct label *ifnetlabel); 343 int (*mpo_check_cred_relabel)(struct ucred *cred, 344 struct label *newlabel); 345 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 346 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 347 struct ifnet *ifnet, struct label *ifnetlabel, 348 struct label *newlabel); 349 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 350 struct label *ifnetlabel, struct mbuf *m, 351 struct label *mbuflabel); 352 int (*mpo_check_inpcb_deliver)(struct inpcb *inp, 353 struct label *inplabel, struct mbuf *m, 354 struct label *mlabel); 355 int (*mpo_check_sysv_msgmsq)(struct ucred *cred, 356 struct msg *msgptr, struct label *msglabel, 357 struct msqid_kernel *msqkptr, struct label *msqklabel); 358 int (*mpo_check_sysv_msgrcv)(struct ucred *cred, 359 struct msg *msgptr, struct label *msglabel); 360 int (*mpo_check_sysv_msgrmid)(struct ucred *cred, 361 struct msg *msgptr, struct label *msglabel); 362 int (*mpo_check_sysv_msqget)(struct ucred *cred, 363 struct msqid_kernel *msqkptr, struct label *msqklabel); 364 int (*mpo_check_sysv_msqsnd)(struct ucred *cred, 365 struct msqid_kernel *msqkptr, struct label *msqklabel); 366 int (*mpo_check_sysv_msqrcv)(struct ucred *cred, 367 struct msqid_kernel *msqkptr, struct label *msqklabel); 368 int (*mpo_check_sysv_msqctl)(struct ucred *cred, 369 struct msqid_kernel *msqkptr, struct label *msqklabel, 370 int cmd); 371 int (*mpo_check_sysv_semctl)(struct ucred *cred, 372 struct semid_kernel *semakptr, struct label *semaklabel, 373 int cmd); 374 int (*mpo_check_sysv_semget)(struct ucred *cred, 375 struct semid_kernel *semakptr, struct label *semaklabel); 376 int (*mpo_check_sysv_semop)(struct ucred *cred, 377 struct semid_kernel *semakptr, struct label *semaklabel, 378 size_t accesstype); 379 int (*mpo_check_sysv_shmat)(struct ucred *cred, 380 struct shmid_kernel *shmsegptr, 381 struct label *shmseglabel, int shmflg); 382 int (*mpo_check_sysv_shmctl)(struct ucred *cred, 383 struct shmid_kernel *shmsegptr, 384 struct label *shmseglabel, int cmd); 385 int (*mpo_check_sysv_shmdt)(struct ucred *cred, 386 struct shmid_kernel *shmsegptr, 387 struct label *shmseglabel); 388 int (*mpo_check_sysv_shmget)(struct ucred *cred, 389 struct shmid_kernel *shmsegptr, 390 struct label *shmseglabel, int shmflg); 391 int (*mpo_check_kenv_dump)(struct ucred *cred); 392 int (*mpo_check_kenv_get)(struct ucred *cred, char *name); 393 int (*mpo_check_kenv_set)(struct ucred *cred, char *name, 394 char *value); 395 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name); 396 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp, 397 struct label *vlabel); 398 int (*mpo_check_kld_stat)(struct ucred *cred); 399 int (*mpo_check_kld_unload)(struct ucred *cred); 400 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 401 struct label *mntlabel); 402 int (*mpo_check_pipe_ioctl)(struct ucred *cred, 403 struct pipepair *pp, struct label *pipelabel, 404 unsigned long cmd, void *data); 405 int (*mpo_check_pipe_poll)(struct ucred *cred, 406 struct pipepair *pp, struct label *pipelabel); 407 int (*mpo_check_pipe_read)(struct ucred *cred, 408 struct pipepair *pp, struct label *pipelabel); 409 int (*mpo_check_pipe_relabel)(struct ucred *cred, 410 struct pipepair *pp, struct label *pipelabel, 411 struct label *newlabel); 412 int (*mpo_check_pipe_stat)(struct ucred *cred, 413 struct pipepair *pp, struct label *pipelabel); 414 int (*mpo_check_pipe_write)(struct ucred *cred, 415 struct pipepair *pp, struct label *pipelabel); 416 int (*mpo_check_posix_sem_destroy)(struct ucred *cred, 417 struct ksem *ksemptr, struct label *ks_label); 418 int (*mpo_check_posix_sem_getvalue)(struct ucred *cred, 419 struct ksem *ksemptr, struct label *ks_label); 420 int (*mpo_check_posix_sem_open)(struct ucred *cred, 421 struct ksem *ksemptr, struct label *ks_label); 422 int (*mpo_check_posix_sem_post)(struct ucred *cred, 423 struct ksem *ksemptr, struct label *ks_label); 424 int (*mpo_check_posix_sem_unlink)(struct ucred *cred, 425 struct ksem *ksemptr, struct label *ks_label); 426 int (*mpo_check_posix_sem_wait)(struct ucred *cred, 427 struct ksem *ksemptr, struct label *ks_label); 428 int (*mpo_check_proc_debug)(struct ucred *cred, 429 struct proc *proc); 430 int (*mpo_check_proc_sched)(struct ucred *cred, 431 struct proc *proc); 432 int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid); 433 int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid); 434 int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid); 435 int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid); 436 int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups, 437 gid_t *gidset); 438 int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid, 439 uid_t euid); 440 int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid, 441 gid_t egid); 442 int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid, 443 uid_t euid, uid_t suid); 444 int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid, 445 gid_t egid, gid_t sgid); 446 int (*mpo_check_proc_signal)(struct ucred *cred, 447 struct proc *proc, int signum); 448 int (*mpo_check_proc_wait)(struct ucred *cred, 449 struct proc *proc); 450 int (*mpo_check_socket_accept)(struct ucred *cred, 451 struct socket *so, struct label *socketlabel); 452 int (*mpo_check_socket_bind)(struct ucred *cred, 453 struct socket *so, struct label *socketlabel, 454 struct sockaddr *sockaddr); 455 int (*mpo_check_socket_connect)(struct ucred *cred, 456 struct socket *so, struct label *socketlabel, 457 struct sockaddr *sockaddr); 458 int (*mpo_check_socket_deliver)(struct socket *so, 459 struct label *socketlabel, struct mbuf *m, 460 struct label *mbuflabel); 461 int (*mpo_check_socket_listen)(struct ucred *cred, 462 struct socket *so, struct label *socketlabel); 463 int (*mpo_check_socket_poll)(struct ucred *cred, 464 struct socket *so, struct label *socketlabel); 465 int (*mpo_check_socket_receive)(struct ucred *cred, 466 struct socket *so, struct label *socketlabel); 467 int (*mpo_check_socket_relabel)(struct ucred *cred, 468 struct socket *so, struct label *socketlabel, 469 struct label *newlabel); 470 int (*mpo_check_socket_send)(struct ucred *cred, 471 struct socket *so, struct label *socketlabel); 472 int (*mpo_check_socket_stat)(struct ucred *cred, 473 struct socket *so, struct label *socketlabel); 474 int (*mpo_check_socket_visible)(struct ucred *cred, 475 struct socket *so, struct label *socketlabel); 476 int (*mpo_check_sysarch_ioperm)(struct ucred *cred); 477 int (*mpo_check_system_acct)(struct ucred *cred, 478 struct vnode *vp, struct label *vlabel); 479 int (*mpo_check_system_nfsd)(struct ucred *cred); 480 int (*mpo_check_system_reboot)(struct ucred *cred, int howto); 481 int (*mpo_check_system_settime)(struct ucred *cred); 482 int (*mpo_check_system_swapon)(struct ucred *cred, 483 struct vnode *vp, struct label *label); 484 int (*mpo_check_system_swapoff)(struct ucred *cred, 485 struct vnode *vp, struct label *label); 486 int (*mpo_check_system_sysctl)(struct ucred *cred, 487 struct sysctl_oid *oidp, void *arg1, int arg2, 488 struct sysctl_req *req); 489 int (*mpo_check_vnode_access)(struct ucred *cred, 490 struct vnode *vp, struct label *label, int acc_mode); 491 int (*mpo_check_vnode_chdir)(struct ucred *cred, 492 struct vnode *dvp, struct label *dlabel); 493 int (*mpo_check_vnode_chroot)(struct ucred *cred, 494 struct vnode *dvp, struct label *dlabel); 495 int (*mpo_check_vnode_create)(struct ucred *cred, 496 struct vnode *dvp, struct label *dlabel, 497 struct componentname *cnp, struct vattr *vap); 498 int (*mpo_check_vnode_delete)(struct ucred *cred, 499 struct vnode *dvp, struct label *dlabel, 500 struct vnode *vp, struct label *label, 501 struct componentname *cnp); 502 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 503 struct vnode *vp, struct label *label, acl_type_t type); 504 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred, 505 struct vnode *vp, struct label *label, int attrnamespace, 506 const char *name); 507 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 508 struct label *label, struct image_params *imgp, 509 struct label *execlabel); 510 int (*mpo_check_vnode_getacl)(struct ucred *cred, 511 struct vnode *vp, struct label *label, acl_type_t type); 512 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 513 struct vnode *vp, struct label *label, int attrnamespace, 514 const char *name, struct uio *uio); 515 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 516 struct label *dlabel, struct vnode *vp, 517 struct label *label, struct componentname *cnp); 518 int (*mpo_check_vnode_listextattr)(struct ucred *cred, 519 struct vnode *vp, struct label *label, int attrnamespace); 520 int (*mpo_check_vnode_lookup)(struct ucred *cred, 521 struct vnode *dvp, struct label *dlabel, 522 struct componentname *cnp); 523 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 524 struct label *label, int prot, int flags); 525 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 526 struct vnode *vp, struct label *label, int *prot); 527 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 528 struct vnode *vp, struct label *label, int prot); 529 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 530 struct label *label, int acc_mode); 531 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 532 struct ucred *file_cred, struct vnode *vp, 533 struct label *label); 534 int (*mpo_check_vnode_read)(struct ucred *active_cred, 535 struct ucred *file_cred, struct vnode *vp, 536 struct label *label); 537 int (*mpo_check_vnode_readdir)(struct ucred *cred, 538 struct vnode *dvp, struct label *dlabel); 539 int (*mpo_check_vnode_readlink)(struct ucred *cred, 540 struct vnode *vp, struct label *label); 541 int (*mpo_check_vnode_relabel)(struct ucred *cred, 542 struct vnode *vp, struct label *vnodelabel, 543 struct label *newlabel); 544 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 545 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 546 struct label *label, struct componentname *cnp); 547 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 548 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 549 struct label *label, int samedir, 550 struct componentname *cnp); 551 int (*mpo_check_vnode_revoke)(struct ucred *cred, 552 struct vnode *vp, struct label *label); 553 int (*mpo_check_vnode_setacl)(struct ucred *cred, 554 struct vnode *vp, struct label *label, acl_type_t type, 555 struct acl *acl); 556 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 557 struct vnode *vp, struct label *label, int attrnamespace, 558 const char *name, struct uio *uio); 559 int (*mpo_check_vnode_setflags)(struct ucred *cred, 560 struct vnode *vp, struct label *label, u_long flags); 561 int (*mpo_check_vnode_setmode)(struct ucred *cred, 562 struct vnode *vp, struct label *label, mode_t mode); 563 int (*mpo_check_vnode_setowner)(struct ucred *cred, 564 struct vnode *vp, struct label *label, uid_t uid, 565 gid_t gid); 566 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 567 struct vnode *vp, struct label *label, 568 struct timespec atime, struct timespec mtime); 569 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 570 struct ucred *file_cred, struct vnode *vp, 571 struct label *label); 572 int (*mpo_check_vnode_write)(struct ucred *active_cred, 573 struct ucred *file_cred, struct vnode *vp, 574 struct label *label); 575}; 576 577/* 578 * struct mac_policy_conf is the registration structure for policies, and is 579 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT 580 * to register the policy. In general, the fields are immutable, with the 581 * exception of the "security field", run-time flags, and policy list entry, 582 * which are managed by the MAC Framework. Be careful when modifying this 583 * structure, as its layout is statically compiled into all policies. 584 */ 585struct mac_policy_conf { 586 char *mpc_name; /* policy name */ 587 char *mpc_fullname; /* policy full name */ 588 struct mac_policy_ops *mpc_ops; /* policy operations */ 589 int mpc_loadtime_flags; /* flags */ 590 int *mpc_field_off; /* security field */ 591 int mpc_runtime_flags; /* flags */ 592 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 593}; 594 595/* Flags for the mpc_loadtime_flags field. */ 596#define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 597#define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 598#define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 599 600/* Flags for the mpc_runtime_flags field. */ 601#define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 602 603#define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ 604 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 605 #mpname, \ 606 mpfullname, \ 607 mpops, \ 608 mpflags, \ 609 privdata_wanted, \ 610 0, \ 611 }; \ 612 static moduledata_t mpname##_mod = { \ 613 #mpname, \ 614 mac_policy_modevent, \ 615 &mpname##_mac_policy_conf \ 616 }; \ 617 MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \ 618 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 619 SI_ORDER_MIDDLE) 620 621int mac_policy_modevent(module_t mod, int type, void *data); 622 623#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 624 625#endif /* !_SYS_MAC_POLICY_H_ */ 626