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 * $FreeBSD$ 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 */ 58 struct acl; 59 struct bpf_d; 60 struct componentname; 61 struct devfs_dirent; 62 struct ifnet; 63 struct image_params; 64 struct inpcb; 65 struct ipq; 66 struct ksem; 67 struct label; 68 struct mac_policy_conf; 69 struct mbuf; 70 struct mount; 71 struct msqid_kernel; 72 struct pipepair; 73 struct proc; 74 struct sbuf; 75 struct semid_kernel; 76 struct shmid_kernel; 77 struct sockaddr; 78 struct socket; 79 struct sysctl_oid; 80 struct sysctl_req; 81 struct thread; 82 struct ucred; 83 struct uio; 84 struct vattr; 85 struct vnode; 86 struct 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_placeholder0)(void); 110 void (*mpo_init_ifnet_label)(struct label *label); 111 int (*mpo_init_inpcb_label)(struct label *label, int flag); 112 void (*mpo_init_sysv_msgmsg_label)(struct label *label); 113 void (*mpo_init_sysv_msgqueue_label)(struct label *label); 114 void (*mpo_init_sysv_sem_label)(struct label *label); 115 void (*mpo_init_sysv_shm_label)(struct label *label); 116 int (*mpo_init_ipq_label)(struct label *label, int flag); 117 int (*mpo_init_mbuf_label)(struct label *label, int flag); 118 void (*mpo_init_mount_label)(struct label *label); 119 void (*mpo_init_mount_fs_label)(struct label *label); 120 int (*mpo_init_socket_label)(struct label *label, int flag); 121 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 122 void (*mpo_init_pipe_label)(struct label *label); 123 void (*mpo_init_posix_sem_label)(struct label *label); 124 void (*mpo_init_proc_label)(struct label *label); 125 void (*mpo_init_vnode_label)(struct label *label); 126 void (*mpo_destroy_bpfdesc_label)(struct label *label); 127 void (*mpo_destroy_cred_label)(struct label *label); 128 void (*mpo_destroy_devfsdirent_label)(struct label *label); 129 void (*_mpo_placeholder1)(void); 130 void (*mpo_destroy_ifnet_label)(struct label *label); 131 void (*mpo_destroy_inpcb_label)(struct label *label); 132 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label); 133 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label); 134 void (*mpo_destroy_sysv_sem_label)(struct label *label); 135 void (*mpo_destroy_sysv_shm_label)(struct label *label); 136 void (*mpo_destroy_ipq_label)(struct label *label); 137 void (*mpo_destroy_mbuf_label)(struct label *label); 138 void (*mpo_destroy_mount_label)(struct label *label); 139 void (*mpo_destroy_mount_fs_label)(struct label *label); 140 void (*mpo_destroy_socket_label)(struct label *label); 141 void (*mpo_destroy_socket_peer_label)(struct label *label); 142 void (*mpo_destroy_pipe_label)(struct label *label); 143 void (*mpo_destroy_posix_sem_label)(struct label *label); 144 void (*mpo_destroy_proc_label)(struct label *label); 145 void (*mpo_destroy_vnode_label)(struct label *label); 146 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel); 147 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel); 148 void (*mpo_cleanup_sysv_sem)(struct label *semalabel); 149 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel); 150 void (*mpo_copy_cred_label)(struct label *src, 151 struct label *dest); 152 void (*mpo_copy_ifnet_label)(struct label *src, 153 struct label *dest); 154 void (*mpo_copy_mbuf_label)(struct label *src, 155 struct label *dest); 156 void (*_mpo_placeholder2)(void); 157 void (*mpo_copy_pipe_label)(struct label *src, 158 struct label *dest); 159 void (*mpo_copy_socket_label)(struct label *src, 160 struct label *dest); 161 void (*mpo_copy_vnode_label)(struct label *src, 162 struct label *dest); 163 int (*mpo_externalize_cred_label)(struct label *label, 164 char *element_name, struct sbuf *sb, int *claimed); 165 int (*mpo_externalize_ifnet_label)(struct label *label, 166 char *element_name, struct sbuf *sb, int *claimed); 167 void (*_mpo_placeholder3)(void); 168 int (*mpo_externalize_pipe_label)(struct label *label, 169 char *element_name, struct sbuf *sb, int *claimed); 170 int (*mpo_externalize_socket_label)(struct label *label, 171 char *element_name, struct sbuf *sb, int *claimed); 172 int (*mpo_externalize_socket_peer_label)(struct label *label, 173 char *element_name, struct sbuf *sb, int *claimed); 174 int (*mpo_externalize_vnode_label)(struct label *label, 175 char *element_name, struct sbuf *sb, int *claimed); 176 int (*mpo_internalize_cred_label)(struct label *label, 177 char *element_name, char *element_data, int *claimed); 178 int (*mpo_internalize_ifnet_label)(struct label *label, 179 char *element_name, char *element_data, int *claimed); 180 void (*_mpo_placeholder4)(void); 181 int (*mpo_internalize_pipe_label)(struct label *label, 182 char *element_name, char *element_data, int *claimed); 183 int (*mpo_internalize_socket_label)(struct label *label, 184 char *element_name, char *element_data, int *claimed); 185 int (*mpo_internalize_vnode_label)(struct label *label, 186 char *element_name, char *element_data, int *claimed); 187 188 /* 189 * Labeling event operations: file system objects, and things that 190 * look a lot like file system objects. 191 */ 192 void (*mpo_associate_vnode_devfs)(struct mount *mp, 193 struct label *fslabel, struct devfs_dirent *de, 194 struct label *delabel, struct vnode *vp, 195 struct label *vlabel); 196 int (*mpo_associate_vnode_extattr)(struct mount *mp, 197 struct label *fslabel, struct vnode *vp, 198 struct label *vlabel); 199 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 200 struct label *fslabel, struct vnode *vp, 201 struct label *vlabel); 202 void (*mpo_create_devfs_device)(struct ucred *cred, 203 struct mount *mp, struct cdev *dev, 204 struct devfs_dirent *de, struct label *label); 205 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname, 206 int dirnamelen, struct devfs_dirent *de, 207 struct label *label); 208 void (*mpo_create_devfs_symlink)(struct ucred *cred, 209 struct mount *mp, struct devfs_dirent *dd, 210 struct label *ddlabel, struct devfs_dirent *de, 211 struct label *delabel); 212 void (*_mpo_placeholder5)(void); 213 int (*mpo_create_vnode_extattr)(struct ucred *cred, 214 struct mount *mp, struct label *fslabel, 215 struct vnode *dvp, struct label *dlabel, 216 struct vnode *vp, struct label *vlabel, 217 struct componentname *cnp); 218 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 219 struct label *mntlabel, struct label *fslabel); 220 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 221 struct label *vnodelabel, struct label *label); 222 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 223 struct vnode *vp, struct label *vlabel, 224 struct label *intlabel); 225 void (*mpo_update_devfsdirent)(struct mount *mp, 226 struct devfs_dirent *devfs_dirent, 227 struct label *direntlabel, struct vnode *vp, 228 struct label *vnodelabel); 229 230 /* 231 * Labeling event operations: IPC objects. 232 */ 233 void (*mpo_create_mbuf_from_socket)(struct socket *so, 234 struct label *socketlabel, struct mbuf *m, 235 struct label *mbuflabel); 236 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 237 struct label *socketlabel); 238 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 239 struct label *oldsocketlabel, struct socket *newsocket, 240 struct label *newsocketlabel); 241 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 242 struct label *oldlabel, struct label *newlabel); 243 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp, 244 struct label *oldlabel, struct label *newlabel); 245 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 246 struct label *mbuflabel, struct socket *so, 247 struct label *socketpeerlabel); 248 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 249 struct label *oldsocketlabel, struct socket *newsocket, 250 struct label *newsocketpeerlabel); 251 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp, 252 struct label *pipelabel); 253 254 /* 255 * Labeling event operations: System V IPC primitives. 256 */ 257 void (*mpo_create_sysv_msgmsg)(struct ucred *cred, 258 struct msqid_kernel *msqkptr, struct label *msqlabel, 259 struct msg *msgptr, struct label *msglabel); 260 void (*mpo_create_sysv_msgqueue)(struct ucred *cred, 261 struct msqid_kernel *msqkptr, struct label *msqlabel); 262 void (*mpo_create_sysv_sem)(struct ucred *cred, 263 struct semid_kernel *semakptr, struct label *semalabel); 264 void (*mpo_create_sysv_shm)(struct ucred *cred, 265 struct shmid_kernel *shmsegptr, struct label *shmlabel); 266 267 /* 268 * Labeling event operations: POSIX (global/inter-process) semaphores. 269 */ 270 void (*mpo_create_posix_sem)(struct ucred *cred, 271 struct ksem *ksemptr, struct label *ks_label); 272 273 /* 274 * Labeling event operations: network objects. 275 */ 276 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 277 struct label *bpflabel); 278 void (*mpo_create_ifnet)(struct ifnet *ifnet, 279 struct label *ifnetlabel); 280 void (*mpo_create_inpcb_from_socket)(struct socket *so, 281 struct label *solabel, struct inpcb *inp, 282 struct label *inplabel); 283 void (*mpo_create_ipq)(struct mbuf *fragment, 284 struct label *fragmentlabel, struct ipq *ipq, 285 struct label *ipqlabel); 286 void (*mpo_create_datagram_from_ipq) 287 (struct ipq *ipq, struct label *ipqlabel, 288 struct mbuf *datagram, struct label *datagramlabel); 289 void (*mpo_create_fragment)(struct mbuf *datagram, 290 struct label *datagramlabel, struct mbuf *fragment, 291 struct label *fragmentlabel); 292 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp, 293 struct label *inplabel, struct mbuf *m, 294 struct label *mlabel); 295 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 296 struct label *ifnetlabel, struct mbuf *mbuf, 297 struct label *mbuflabel); 298 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 299 struct label *bpflabel, struct mbuf *mbuf, 300 struct label *mbuflabel); 301 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 302 struct label *ifnetlabel, struct mbuf *mbuf, 303 struct label *mbuflabel); 304 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 305 struct label *oldmbuflabel, struct ifnet *ifnet, 306 struct label *ifnetlabel, struct mbuf *newmbuf, 307 struct label *newmbuflabel); 308 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 309 struct label *oldmbuflabel, struct mbuf *newmbuf, 310 struct label *newmbuflabel); 311 int (*mpo_fragment_match)(struct mbuf *fragment, 312 struct label *fragmentlabel, struct ipq *ipq, 313 struct label *ipqlabel); 314 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m, 315 struct label *mlabel); 316 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel); 317 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 318 struct label *ifnetlabel, struct label *newlabel); 319 void (*mpo_update_ipq)(struct mbuf *fragment, 320 struct label *fragmentlabel, struct ipq *ipq, 321 struct label *ipqlabel); 322 void (*mpo_inpcb_sosetlabel)(struct socket *so, 323 struct label *label, struct inpcb *inp, 324 struct label *inplabel); 325 326 /* 327 * Labeling event operations: processes. 328 */ 329 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 330 struct vnode *vp, struct label *vnodelabel, 331 struct label *interpvnodelabel, 332 struct image_params *imgp, struct label *execlabel); 333 int (*mpo_execve_will_transition)(struct ucred *old, 334 struct vnode *vp, struct label *vnodelabel, 335 struct label *interpvnodelabel, 336 struct image_params *imgp, struct label *execlabel); 337 void (*mpo_create_proc0)(struct ucred *cred); 338 void (*mpo_create_proc1)(struct ucred *cred); 339 void (*mpo_relabel_cred)(struct ucred *cred, 340 struct label *newlabel); 341 void (*_mpo_placeholder6)(void); 342 void (*mpo_thread_userret)(struct thread *thread); 343 344 /* 345 * Access control checks. 346 */ 347 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 348 struct label *bpflabel, struct ifnet *ifnet, 349 struct label *ifnetlabel); 350 void (*_mpo_placeholder7)(void); 351 int (*mpo_check_cred_relabel)(struct ucred *cred, 352 struct label *newlabel); 353 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 354 void (*_mpo_placeholder8)(void); 355 void (*_mpo_placeholder9)(void); 356 void (*_mpo_placeholder10)(void); 357 void (*_mpo_placeholder11)(void); 358 void (*_mpo_placeholder12)(void); 359 void (*_mpo_placeholder13)(void); 360 void (*_mpo_placeholder14)(void); 361 void (*_mpo_placeholder15)(void); 362 void (*_mpo_placeholder16)(void); 363 void (*_mpo_placeholder17)(void); 364 void (*_mpo_placeholder18)(void); 365 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 366 struct ifnet *ifnet, struct label *ifnetlabel, 367 struct label *newlabel); 368 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 369 struct label *ifnetlabel, struct mbuf *m, 370 struct label *mbuflabel); 371 int (*mpo_check_inpcb_deliver)(struct inpcb *inp, 372 struct label *inplabel, struct mbuf *m, 373 struct label *mlabel); 374 int (*mpo_check_sysv_msgmsq)(struct ucred *cred, 375 struct msg *msgptr, struct label *msglabel, 376 struct msqid_kernel *msqkptr, struct label *msqklabel); 377 int (*mpo_check_sysv_msgrcv)(struct ucred *cred, 378 struct msg *msgptr, struct label *msglabel); 379 int (*mpo_check_sysv_msgrmid)(struct ucred *cred, 380 struct msg *msgptr, struct label *msglabel); 381 int (*mpo_check_sysv_msqget)(struct ucred *cred, 382 struct msqid_kernel *msqkptr, struct label *msqklabel); 383 int (*mpo_check_sysv_msqsnd)(struct ucred *cred, 384 struct msqid_kernel *msqkptr, struct label *msqklabel); 385 int (*mpo_check_sysv_msqrcv)(struct ucred *cred, 386 struct msqid_kernel *msqkptr, struct label *msqklabel); 387 int (*mpo_check_sysv_msqctl)(struct ucred *cred, 388 struct msqid_kernel *msqkptr, struct label *msqklabel, 389 int cmd); 390 int (*mpo_check_sysv_semctl)(struct ucred *cred, 391 struct semid_kernel *semakptr, struct label *semaklabel, 392 int cmd); 393 int (*mpo_check_sysv_semget)(struct ucred *cred, 394 struct semid_kernel *semakptr, struct label *semaklabel); 395 int (*mpo_check_sysv_semop)(struct ucred *cred, 396 struct semid_kernel *semakptr, struct label *semaklabel, 397 size_t accesstype); 398 int (*mpo_check_sysv_shmat)(struct ucred *cred, 399 struct shmid_kernel *shmsegptr, 400 struct label *shmseglabel, int shmflg); 401 int (*mpo_check_sysv_shmctl)(struct ucred *cred, 402 struct shmid_kernel *shmsegptr, 403 struct label *shmseglabel, int cmd); 404 int (*mpo_check_sysv_shmdt)(struct ucred *cred, 405 struct shmid_kernel *shmsegptr, 406 struct label *shmseglabel); 407 int (*mpo_check_sysv_shmget)(struct ucred *cred, 408 struct shmid_kernel *shmsegptr, 409 struct label *shmseglabel, int shmflg); 410 int (*mpo_check_kenv_dump)(struct ucred *cred); 411 int (*mpo_check_kenv_get)(struct ucred *cred, char *name); 412 int (*mpo_check_kenv_set)(struct ucred *cred, char *name, 413 char *value); 414 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name); 415 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp, 416 struct label *vlabel); 417 int (*mpo_check_kld_stat)(struct ucred *cred); 418 int (*mpo_check_kld_unload)(struct ucred *cred); 419 void (*_mpo_placeholder19)(void); 420 void (*_mpo_placeholder20)(void); 421 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 422 struct label *mntlabel); 423 void (*_mpo_placeholder21)(void); 424 int (*mpo_check_pipe_ioctl)(struct ucred *cred, 425 struct pipepair *pp, struct label *pipelabel, 426 unsigned long cmd, void *data); 427 int (*mpo_check_pipe_poll)(struct ucred *cred, 428 struct pipepair *pp, struct label *pipelabel); 429 int (*mpo_check_pipe_read)(struct ucred *cred, 430 struct pipepair *pp, struct label *pipelabel); 431 int (*mpo_check_pipe_relabel)(struct ucred *cred, 432 struct pipepair *pp, struct label *pipelabel, 433 struct label *newlabel); 434 int (*mpo_check_pipe_stat)(struct ucred *cred, 435 struct pipepair *pp, struct label *pipelabel); 436 int (*mpo_check_pipe_write)(struct ucred *cred, 437 struct pipepair *pp, struct label *pipelabel); 438 int (*mpo_check_posix_sem_destroy)(struct ucred *cred, 439 struct ksem *ksemptr, struct label *ks_label); 440 int (*mpo_check_posix_sem_getvalue)(struct ucred *cred, 441 struct ksem *ksemptr, struct label *ks_label); 442 int (*mpo_check_posix_sem_open)(struct ucred *cred, 443 struct ksem *ksemptr, struct label *ks_label); 444 int (*mpo_check_posix_sem_post)(struct ucred *cred, 445 struct ksem *ksemptr, struct label *ks_label); 446 int (*mpo_check_posix_sem_unlink)(struct ucred *cred, 447 struct ksem *ksemptr, struct label *ks_label); 448 int (*mpo_check_posix_sem_wait)(struct ucred *cred, 449 struct ksem *ksemptr, struct label *ks_label); 450 int (*mpo_check_proc_debug)(struct ucred *cred, 451 struct proc *proc); 452 int (*mpo_check_proc_sched)(struct ucred *cred, 453 struct proc *proc); 454 int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid); 455 int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid); 456 int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid); 457 int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid); 458 int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups, 459 gid_t *gidset); 460 int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid, 461 uid_t euid); 462 int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid, 463 gid_t egid); 464 int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid, 465 uid_t euid, uid_t suid); 466 int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid, 467 gid_t egid, gid_t sgid); 468 int (*mpo_check_proc_signal)(struct ucred *cred, 469 struct proc *proc, int signum); 470 int (*mpo_check_proc_wait)(struct ucred *cred, 471 struct proc *proc); 472 int (*mpo_check_socket_accept)(struct ucred *cred, 473 struct socket *so, struct label *socketlabel); 474 int (*mpo_check_socket_bind)(struct ucred *cred, 475 struct socket *so, struct label *socketlabel, 476 struct sockaddr *sockaddr); 477 int (*mpo_check_socket_connect)(struct ucred *cred, 478 struct socket *so, struct label *socketlabel, 479 struct sockaddr *sockaddr); 480 int (*mpo_check_socket_create)(struct ucred *cred, int domain, 481 int type, int protocol); 482 int (*mpo_check_socket_deliver)(struct socket *so, 483 struct label *socketlabel, struct mbuf *m, 484 struct label *mbuflabel); 485 void (*_mpo_placeholder22)(void); 486 int (*mpo_check_socket_listen)(struct ucred *cred, 487 struct socket *so, struct label *socketlabel); 488 int (*mpo_check_socket_poll)(struct ucred *cred, 489 struct socket *so, struct label *socketlabel); 490 int (*mpo_check_socket_receive)(struct ucred *cred, 491 struct socket *so, struct label *socketlabel); 492 int (*mpo_check_socket_relabel)(struct ucred *cred, 493 struct socket *so, struct label *socketlabel, 494 struct label *newlabel); 495 int (*mpo_check_socket_send)(struct ucred *cred, 496 struct socket *so, struct label *socketlabel); 497 int (*mpo_check_socket_stat)(struct ucred *cred, 498 struct socket *so, struct label *socketlabel); 499 int (*mpo_check_socket_visible)(struct ucred *cred, 500 struct socket *so, struct label *socketlabel); 501 int (*mpo_check_sysarch_ioperm)(struct ucred *cred); 502 int (*mpo_check_system_acct)(struct ucred *cred, 503 struct vnode *vp, struct label *vlabel); 504 int (*mpo_check_system_nfsd)(struct ucred *cred); 505 int (*mpo_check_system_reboot)(struct ucred *cred, int howto); 506 int (*mpo_check_system_settime)(struct ucred *cred); 507 int (*mpo_check_system_swapon)(struct ucred *cred, 508 struct vnode *vp, struct label *label); 509 int (*mpo_check_system_swapoff)(struct ucred *cred, 510 struct vnode *vp, struct label *label); 511 int (*mpo_check_system_sysctl)(struct ucred *cred, 512 struct sysctl_oid *oidp, void *arg1, int arg2, 513 struct sysctl_req *req); 514 void (*_mpo_placeholder23)(void); 515 int (*mpo_check_vnode_access)(struct ucred *cred, 516 struct vnode *vp, struct label *label, int acc_mode); 517 int (*mpo_check_vnode_chdir)(struct ucred *cred, 518 struct vnode *dvp, struct label *dlabel); 519 int (*mpo_check_vnode_chroot)(struct ucred *cred, 520 struct vnode *dvp, struct label *dlabel); 521 int (*mpo_check_vnode_create)(struct ucred *cred, 522 struct vnode *dvp, struct label *dlabel, 523 struct componentname *cnp, struct vattr *vap); 524 int (*mpo_check_vnode_delete)(struct ucred *cred, 525 struct vnode *dvp, struct label *dlabel, 526 struct vnode *vp, struct label *label, 527 struct componentname *cnp); 528 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 529 struct vnode *vp, struct label *label, acl_type_t type); 530 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred, 531 struct vnode *vp, struct label *label, int attrnamespace, 532 const char *name); 533 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 534 struct label *label, struct image_params *imgp, 535 struct label *execlabel); 536 int (*mpo_check_vnode_getacl)(struct ucred *cred, 537 struct vnode *vp, struct label *label, acl_type_t type); 538 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 539 struct vnode *vp, struct label *label, int attrnamespace, 540 const char *name, struct uio *uio); 541 void (*_mpo_placeholder24)(void); 542 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 543 struct label *dlabel, struct vnode *vp, 544 struct label *label, struct componentname *cnp); 545 int (*mpo_check_vnode_listextattr)(struct ucred *cred, 546 struct vnode *vp, struct label *label, int attrnamespace); 547 int (*mpo_check_vnode_lookup)(struct ucred *cred, 548 struct vnode *dvp, struct label *dlabel, 549 struct componentname *cnp); 550 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 551 struct label *label, int prot, int flags); 552 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 553 struct vnode *vp, struct label *label, int *prot); 554 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 555 struct vnode *vp, struct label *label, int prot); 556 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 557 struct label *label, int acc_mode); 558 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 559 struct ucred *file_cred, struct vnode *vp, 560 struct label *label); 561 int (*mpo_check_vnode_read)(struct ucred *active_cred, 562 struct ucred *file_cred, struct vnode *vp, 563 struct label *label); 564 int (*mpo_check_vnode_readdir)(struct ucred *cred, 565 struct vnode *dvp, struct label *dlabel); 566 int (*mpo_check_vnode_readlink)(struct ucred *cred, 567 struct vnode *vp, struct label *label); 568 int (*mpo_check_vnode_relabel)(struct ucred *cred, 569 struct vnode *vp, struct label *vnodelabel, 570 struct label *newlabel); 571 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 572 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 573 struct label *label, struct componentname *cnp); 574 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 575 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 576 struct label *label, int samedir, 577 struct componentname *cnp); 578 int (*mpo_check_vnode_revoke)(struct ucred *cred, 579 struct vnode *vp, struct label *label); 580 int (*mpo_check_vnode_setacl)(struct ucred *cred, 581 struct vnode *vp, struct label *label, acl_type_t type, 582 struct acl *acl); 583 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 584 struct vnode *vp, struct label *label, int attrnamespace, 585 const char *name, struct uio *uio); 586 int (*mpo_check_vnode_setflags)(struct ucred *cred, 587 struct vnode *vp, struct label *label, u_long flags); 588 int (*mpo_check_vnode_setmode)(struct ucred *cred, 589 struct vnode *vp, struct label *label, mode_t mode); 590 int (*mpo_check_vnode_setowner)(struct ucred *cred, 591 struct vnode *vp, struct label *label, uid_t uid, 592 gid_t gid); 593 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 594 struct vnode *vp, struct label *label, 595 struct timespec atime, struct timespec mtime); 596 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 597 struct ucred *file_cred, struct vnode *vp, 598 struct label *label); 599 int (*mpo_check_vnode_write)(struct ucred *active_cred, 600 struct ucred *file_cred, struct vnode *vp, 601 struct label *label); 602 }; 603 604 /* 605 * struct mac_policy_conf is the registration structure for policies, and is 606 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT 607 * to register the policy. In general, the fields are immutable, with the 608 * exception of the "security field", run-time flags, and policy list entry, 609 * which are managed by the MAC Framework. Be careful when modifying this 610 * structure, as its layout is statically compiled into all policies. 611 */ 612 struct mac_policy_conf { 613 char *mpc_name; /* policy name */ 614 char *mpc_fullname; /* policy full name */ 615 struct mac_policy_ops *mpc_ops; /* policy operations */ 616 int mpc_loadtime_flags; /* flags */ 617 int *mpc_field_off; /* security field */ 618 int mpc_runtime_flags; /* flags */ 619 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 620 }; 621 622 /* Flags for the mpc_loadtime_flags field. */ 623 #define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 624 #define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 625 #define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 626 627 /* Flags for the mpc_runtime_flags field. */ 628 #define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 629 630 #define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ 631 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 632 #mpname, \ 633 mpfullname, \ 634 mpops, \ 635 mpflags, \ 636 privdata_wanted, \ 637 0, \ 638 }; \ 639 static moduledata_t mpname##_mod = { \ 640 #mpname, \ 641 mac_policy_modevent, \ 642 &mpname##_mac_policy_conf \ 643 }; \ 644 MODULE_DEPEND(mpname, kernel_mac_support, 3, 3, 3); \ 645 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 646 SI_ORDER_MIDDLE) 647 648 int mac_policy_modevent(module_t mod, int type, void *data); 649 650 #define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 651 652 #endif /* !_SYS_MAC_POLICY_H_ */ 653