1 /*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2004 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 * $FreeBSD$ 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 */ 54 struct acl; 55 struct bpf_d; 56 struct componentname; 57 struct devfs_dirent; 58 struct ifnet; 59 struct image_params; 60 struct inpcb; 61 struct ipq; 62 struct label; 63 struct mac_policy_conf; 64 struct mbuf; 65 struct mount; 66 struct msqid_kernel; 67 struct pipepair; 68 struct proc; 69 struct sbuf; 70 struct semid_kernel; 71 struct shmid_kernel; 72 struct sockaddr; 73 struct socket; 74 struct sysctl_oid; 75 struct sysctl_req; 76 struct thread; 77 struct ucred; 78 struct uio; 79 struct vattr; 80 struct vnode; 81 struct mac_policy_ops { 82 /* 83 * Policy module operations. 84 */ 85 void (*mpo_destroy)(struct mac_policy_conf *mpc); 86 void (*mpo_init)(struct mac_policy_conf *mpc); 87 88 /* 89 * General policy-directed security system call so that policies may 90 * implement new services without reserving explicit system call 91 * numbers. 92 */ 93 int (*mpo_syscall)(struct thread *td, int call, void *arg); 94 95 /* 96 * Label operations. Initialize label storage, destroy label 97 * storage, recycle for re-use without init/destroy, copy a label to 98 * initialized storage, and externalize/internalize from/to 99 * initialized storage. 100 */ 101 void (*mpo_init_bpfdesc_label)(struct label *label); 102 void (*mpo_init_cred_label)(struct label *label); 103 void (*mpo_init_devfsdirent_label)(struct label *label); 104 void (*mpo_init_ifnet_label)(struct label *label); 105 int (*mpo_init_inpcb_label)(struct label *label, int flag); 106 void (*mpo_init_sysv_msgmsg_label)(struct label *label); 107 void (*mpo_init_sysv_msgqueue_label)(struct label *label); 108 void (*mpo_init_sysv_sema_label)(struct label *label); 109 void (*mpo_init_sysv_shm_label)(struct label *label); 110 int (*mpo_init_ipq_label)(struct label *label, int flag); 111 int (*mpo_init_mbuf_label)(struct label *label, int flag); 112 void (*mpo_init_mount_label)(struct label *label); 113 void (*mpo_init_mount_fs_label)(struct label *label); 114 int (*mpo_init_socket_label)(struct label *label, int flag); 115 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 116 void (*mpo_init_pipe_label)(struct label *label); 117 void (*mpo_init_proc_label)(struct label *label); 118 void (*mpo_init_vnode_label)(struct label *label); 119 void (*mpo_destroy_bpfdesc_label)(struct label *label); 120 void (*mpo_destroy_cred_label)(struct label *label); 121 void (*mpo_destroy_devfsdirent_label)(struct label *label); 122 void (*mpo_destroy_ifnet_label)(struct label *label); 123 void (*mpo_destroy_inpcb_label)(struct label *label); 124 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label); 125 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label); 126 void (*mpo_destroy_sysv_sema_label)(struct label *label); 127 void (*mpo_destroy_sysv_shm_label)(struct label *label); 128 void (*mpo_destroy_ipq_label)(struct label *label); 129 void (*mpo_destroy_mbuf_label)(struct label *label); 130 void (*mpo_destroy_mount_label)(struct label *label); 131 void (*mpo_destroy_mount_fs_label)(struct label *label); 132 void (*mpo_destroy_socket_label)(struct label *label); 133 void (*mpo_destroy_socket_peer_label)(struct label *label); 134 void (*mpo_destroy_pipe_label)(struct label *label); 135 void (*mpo_destroy_proc_label)(struct label *label); 136 void (*mpo_destroy_vnode_label)(struct label *label); 137 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel); 138 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel); 139 void (*mpo_cleanup_sysv_sema)(struct label *semalabel); 140 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel); 141 void (*mpo_copy_cred_label)(struct label *src, 142 struct label *dest); 143 void (*mpo_copy_ifnet_label)(struct label *src, 144 struct label *dest); 145 void (*mpo_copy_mbuf_label)(struct label *src, 146 struct label *dest); 147 void (*mpo_copy_pipe_label)(struct label *src, 148 struct label *dest); 149 void (*mpo_copy_socket_label)(struct label *src, 150 struct label *dest); 151 void (*mpo_copy_vnode_label)(struct label *src, 152 struct label *dest); 153 int (*mpo_externalize_cred_label)(struct label *label, 154 char *element_name, struct sbuf *sb, int *claimed); 155 int (*mpo_externalize_ifnet_label)(struct label *label, 156 char *element_name, struct sbuf *sb, int *claimed); 157 int (*mpo_externalize_pipe_label)(struct label *label, 158 char *element_name, struct sbuf *sb, int *claimed); 159 int (*mpo_externalize_socket_label)(struct label *label, 160 char *element_name, struct sbuf *sb, int *claimed); 161 int (*mpo_externalize_socket_peer_label)(struct label *label, 162 char *element_name, struct sbuf *sb, int *claimed); 163 int (*mpo_externalize_vnode_label)(struct label *label, 164 char *element_name, struct sbuf *sb, int *claimed); 165 int (*mpo_internalize_cred_label)(struct label *label, 166 char *element_name, char *element_data, int *claimed); 167 int (*mpo_internalize_ifnet_label)(struct label *label, 168 char *element_name, char *element_data, int *claimed); 169 int (*mpo_internalize_pipe_label)(struct label *label, 170 char *element_name, char *element_data, int *claimed); 171 int (*mpo_internalize_socket_label)(struct label *label, 172 char *element_name, char *element_data, int *claimed); 173 int (*mpo_internalize_vnode_label)(struct label *label, 174 char *element_name, char *element_data, int *claimed); 175 176 /* 177 * Labeling event operations: file system objects, and things that 178 * look a lot like file system objects. 179 */ 180 void (*mpo_associate_vnode_devfs)(struct mount *mp, 181 struct label *fslabel, struct devfs_dirent *de, 182 struct label *delabel, struct vnode *vp, 183 struct label *vlabel); 184 int (*mpo_associate_vnode_extattr)(struct mount *mp, 185 struct label *fslabel, struct vnode *vp, 186 struct label *vlabel); 187 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 188 struct label *fslabel, struct vnode *vp, 189 struct label *vlabel); 190 void (*mpo_create_devfs_device)(struct mount *mp, struct cdev *dev, 191 struct devfs_dirent *de, struct label *label); 192 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname, 193 int dirnamelen, struct devfs_dirent *de, 194 struct label *label); 195 void (*mpo_create_devfs_symlink)(struct ucred *cred, 196 struct mount *mp, struct devfs_dirent *dd, 197 struct label *ddlabel, struct devfs_dirent *de, 198 struct label *delabel); 199 int (*mpo_create_vnode_extattr)(struct ucred *cred, 200 struct mount *mp, struct label *fslabel, 201 struct vnode *dvp, struct label *dlabel, 202 struct vnode *vp, struct label *vlabel, 203 struct componentname *cnp); 204 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 205 struct label *mntlabel, struct label *fslabel); 206 void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp, 207 struct label *mountlabel, struct label *fslabel); 208 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 209 struct label *vnodelabel, struct label *label); 210 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 211 struct vnode *vp, struct label *vlabel, 212 struct label *intlabel); 213 void (*mpo_update_devfsdirent)(struct mount *mp, 214 struct devfs_dirent *devfs_dirent, 215 struct label *direntlabel, struct vnode *vp, 216 struct label *vnodelabel); 217 218 /* 219 * Labeling event operations: IPC objects. 220 */ 221 void (*mpo_create_mbuf_from_socket)(struct socket *so, 222 struct label *socketlabel, struct mbuf *m, 223 struct label *mbuflabel); 224 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 225 struct label *socketlabel); 226 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 227 struct label *oldsocketlabel, struct socket *newsocket, 228 struct label *newsocketlabel); 229 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 230 struct label *oldlabel, struct label *newlabel); 231 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp, 232 struct label *oldlabel, struct label *newlabel); 233 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 234 struct label *mbuflabel, struct socket *so, 235 struct label *socketpeerlabel); 236 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 237 struct label *oldsocketlabel, struct socket *newsocket, 238 struct label *newsocketpeerlabel); 239 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp, 240 struct label *pipelabel); 241 242 /* 243 * Labeling event operations: System V IPC primitives. 244 */ 245 void (*mpo_create_sysv_msgmsg)(struct ucred *cred, 246 struct msqid_kernel *msqkptr, struct label *msqlabel, 247 struct msg *msgptr, struct label *msglabel); 248 void (*mpo_create_sysv_msgqueue)(struct ucred *cred, 249 struct msqid_kernel *msqkptr, struct label *msqlabel); 250 void (*mpo_create_sysv_sema)(struct ucred *cred, 251 struct semid_kernel *semakptr, struct label *semalabel); 252 void (*mpo_create_sysv_shm)(struct ucred *cred, 253 struct shmid_kernel *shmsegptr, struct label *shmlabel); 254 255 /* 256 * Labeling event operations: network objects. 257 */ 258 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 259 struct label *bpflabel); 260 void (*mpo_create_ifnet)(struct ifnet *ifnet, 261 struct label *ifnetlabel); 262 void (*mpo_create_inpcb_from_socket)(struct socket *so, 263 struct label *solabel, struct inpcb *inp, 264 struct label *inplabel); 265 void (*mpo_create_ipq)(struct mbuf *fragment, 266 struct label *fragmentlabel, struct ipq *ipq, 267 struct label *ipqlabel); 268 void (*mpo_create_datagram_from_ipq) 269 (struct ipq *ipq, struct label *ipqlabel, 270 struct mbuf *datagram, struct label *datagramlabel); 271 void (*mpo_create_fragment)(struct mbuf *datagram, 272 struct label *datagramlabel, struct mbuf *fragment, 273 struct label *fragmentlabel); 274 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp, 275 struct label *inplabel, struct mbuf *m, 276 struct label *mlabel); 277 void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf, 278 struct label *oldlabel, struct mbuf *newmbuf, 279 struct label *newlabel); 280 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 281 struct label *ifnetlabel, struct mbuf *mbuf, 282 struct label *mbuflabel); 283 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 284 struct label *bpflabel, struct mbuf *mbuf, 285 struct label *mbuflabel); 286 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 287 struct label *ifnetlabel, struct mbuf *mbuf, 288 struct label *mbuflabel); 289 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 290 struct label *oldmbuflabel, struct ifnet *ifnet, 291 struct label *ifnetlabel, struct mbuf *newmbuf, 292 struct label *newmbuflabel); 293 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 294 struct label *oldmbuflabel, struct mbuf *newmbuf, 295 struct label *newmbuflabel); 296 int (*mpo_fragment_match)(struct mbuf *fragment, 297 struct label *fragmentlabel, struct ipq *ipq, 298 struct label *ipqlabel); 299 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m, 300 struct label *mlabel); 301 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel); 302 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 303 struct label *ifnetlabel, struct label *newlabel); 304 void (*mpo_update_ipq)(struct mbuf *fragment, 305 struct label *fragmentlabel, struct ipq *ipq, 306 struct label *ipqlabel); 307 void (*mpo_inpcb_sosetlabel)(struct socket *so, 308 struct label *label, struct inpcb *inp, 309 struct label *inplabel); 310 311 /* 312 * Labeling event operations: processes. 313 */ 314 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 315 struct vnode *vp, struct label *vnodelabel, 316 struct label *interpvnodelabel, 317 struct image_params *imgp, struct label *execlabel); 318 int (*mpo_execve_will_transition)(struct ucred *old, 319 struct vnode *vp, struct label *vnodelabel, 320 struct label *interpvnodelabel, 321 struct image_params *imgp, struct label *execlabel); 322 void (*mpo_create_proc0)(struct ucred *cred); 323 void (*mpo_create_proc1)(struct ucred *cred); 324 void (*mpo_relabel_cred)(struct ucred *cred, 325 struct label *newlabel); 326 void (*mpo_thread_userret)(struct thread *thread); 327 328 /* 329 * Access control checks. 330 */ 331 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 332 struct label *bpflabel, struct ifnet *ifnet, 333 struct label *ifnetlabel); 334 int (*mpo_check_cred_relabel)(struct ucred *cred, 335 struct label *newlabel); 336 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 337 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 338 struct ifnet *ifnet, struct label *ifnetlabel, 339 struct label *newlabel); 340 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 341 struct label *ifnetlabel, struct mbuf *m, 342 struct label *mbuflabel); 343 int (*mpo_check_inpcb_deliver)(struct inpcb *inp, 344 struct label *inplabel, struct mbuf *m, 345 struct label *mlabel); 346 int (*mpo_check_sysv_msgmsq)(struct ucred *cred, 347 struct msg *msgptr, struct label *msglabel, 348 struct msqid_kernel *msqkptr, struct label *msqklabel); 349 int (*mpo_check_sysv_msgrcv)(struct ucred *cred, 350 struct msg *msgptr, struct label *msglabel); 351 int (*mpo_check_sysv_msgrmid)(struct ucred *cred, 352 struct msg *msgptr, struct label *msglabel); 353 int (*mpo_check_sysv_msqget)(struct ucred *cred, 354 struct msqid_kernel *msqkptr, struct label *msqklabel); 355 int (*mpo_check_sysv_msqsnd)(struct ucred *cred, 356 struct msqid_kernel *msqkptr, struct label *msqklabel); 357 int (*mpo_check_sysv_msqrcv)(struct ucred *cred, 358 struct msqid_kernel *msqkptr, struct label *msqklabel); 359 int (*mpo_check_sysv_msqctl)(struct ucred *cred, 360 struct msqid_kernel *msqkptr, struct label *msqklabel, 361 int cmd); 362 int (*mpo_check_sysv_semctl)(struct ucred *cred, 363 struct semid_kernel *semakptr, struct label *semaklabel, 364 int cmd); 365 int (*mpo_check_sysv_semget)(struct ucred *cred, 366 struct semid_kernel *semakptr, struct label *semaklabel); 367 int (*mpo_check_sysv_semop)(struct ucred *cred, 368 struct semid_kernel *semakptr, struct label *semaklabel, 369 size_t accesstype); 370 int (*mpo_check_sysv_shmat)(struct ucred *cred, 371 struct shmid_kernel *shmsegptr, 372 struct label *shmseglabel, int shmflg); 373 int (*mpo_check_sysv_shmctl)(struct ucred *cred, 374 struct shmid_kernel *shmsegptr, 375 struct label *shmseglabel, int cmd); 376 int (*mpo_check_sysv_shmdt)(struct ucred *cred, 377 struct shmid_kernel *shmsegptr, 378 struct label *shmseglabel); 379 int (*mpo_check_sysv_shmget)(struct ucred *cred, 380 struct shmid_kernel *shmsegptr, 381 struct label *shmseglabel, int shmflg); 382 int (*mpo_check_kenv_dump)(struct ucred *cred); 383 int (*mpo_check_kenv_get)(struct ucred *cred, char *name); 384 int (*mpo_check_kenv_set)(struct ucred *cred, char *name, 385 char *value); 386 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name); 387 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp, 388 struct label *vlabel); 389 int (*mpo_check_kld_stat)(struct ucred *cred); 390 int (*mpo_check_kld_unload)(struct ucred *cred); 391 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 392 struct label *mntlabel); 393 int (*mpo_check_pipe_ioctl)(struct ucred *cred, 394 struct pipepair *pp, struct label *pipelabel, 395 unsigned long cmd, void *data); 396 int (*mpo_check_pipe_poll)(struct ucred *cred, 397 struct pipepair *pp, struct label *pipelabel); 398 int (*mpo_check_pipe_read)(struct ucred *cred, 399 struct pipepair *pp, struct label *pipelabel); 400 int (*mpo_check_pipe_relabel)(struct ucred *cred, 401 struct pipepair *pp, struct label *pipelabel, 402 struct label *newlabel); 403 int (*mpo_check_pipe_stat)(struct ucred *cred, 404 struct pipepair *pp, struct label *pipelabel); 405 int (*mpo_check_pipe_write)(struct ucred *cred, 406 struct pipepair *pp, struct label *pipelabel); 407 int (*mpo_check_proc_debug)(struct ucred *cred, 408 struct proc *proc); 409 int (*mpo_check_proc_sched)(struct ucred *cred, 410 struct proc *proc); 411 int (*mpo_check_proc_signal)(struct ucred *cred, 412 struct proc *proc, int signum); 413 int (*mpo_check_socket_bind)(struct ucred *cred, 414 struct socket *so, struct label *socketlabel, 415 struct sockaddr *sockaddr); 416 int (*mpo_check_socket_connect)(struct ucred *cred, 417 struct socket *so, struct label *socketlabel, 418 struct sockaddr *sockaddr); 419 int (*mpo_check_socket_deliver)(struct socket *so, 420 struct label *socketlabel, struct mbuf *m, 421 struct label *mbuflabel); 422 int (*mpo_check_socket_listen)(struct ucred *cred, 423 struct socket *so, struct label *socketlabel); 424 int (*mpo_check_socket_receive)(struct ucred *cred, 425 struct socket *so, struct label *socketlabel); 426 int (*mpo_check_socket_relabel)(struct ucred *cred, 427 struct socket *so, struct label *socketlabel, 428 struct label *newlabel); 429 int (*mpo_check_socket_send)(struct ucred *cred, 430 struct socket *so, struct label *socketlabel); 431 int (*mpo_check_socket_visible)(struct ucred *cred, 432 struct socket *so, struct label *socketlabel); 433 int (*mpo_check_sysarch_ioperm)(struct ucred *cred); 434 int (*mpo_check_system_acct)(struct ucred *cred, 435 struct vnode *vp, struct label *vlabel); 436 int (*mpo_check_system_nfsd)(struct ucred *cred); 437 int (*mpo_check_system_reboot)(struct ucred *cred, int howto); 438 int (*mpo_check_system_settime)(struct ucred *cred); 439 int (*mpo_check_system_swapon)(struct ucred *cred, 440 struct vnode *vp, struct label *label); 441 int (*mpo_check_system_swapoff)(struct ucred *cred, 442 struct vnode *vp, struct label *label); 443 int (*mpo_check_system_sysctl)(struct ucred *cred, 444 struct sysctl_oid *oidp, void *arg1, int arg2, 445 struct sysctl_req *req); 446 int (*mpo_check_vnode_access)(struct ucred *cred, 447 struct vnode *vp, struct label *label, int acc_mode); 448 int (*mpo_check_vnode_chdir)(struct ucred *cred, 449 struct vnode *dvp, struct label *dlabel); 450 int (*mpo_check_vnode_chroot)(struct ucred *cred, 451 struct vnode *dvp, struct label *dlabel); 452 int (*mpo_check_vnode_create)(struct ucred *cred, 453 struct vnode *dvp, struct label *dlabel, 454 struct componentname *cnp, struct vattr *vap); 455 int (*mpo_check_vnode_delete)(struct ucred *cred, 456 struct vnode *dvp, struct label *dlabel, 457 struct vnode *vp, struct label *label, 458 struct componentname *cnp); 459 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 460 struct vnode *vp, struct label *label, acl_type_t type); 461 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred, 462 struct vnode *vp, struct label *label, int attrnamespace, 463 const char *name); 464 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 465 struct label *label, struct image_params *imgp, 466 struct label *execlabel); 467 int (*mpo_check_vnode_getacl)(struct ucred *cred, 468 struct vnode *vp, struct label *label, acl_type_t type); 469 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 470 struct vnode *vp, struct label *label, int attrnamespace, 471 const char *name, struct uio *uio); 472 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 473 struct label *dlabel, struct vnode *vp, 474 struct label *label, struct componentname *cnp); 475 int (*mpo_check_vnode_listextattr)(struct ucred *cred, 476 struct vnode *vp, struct label *label, int attrnamespace); 477 int (*mpo_check_vnode_lookup)(struct ucred *cred, 478 struct vnode *dvp, struct label *dlabel, 479 struct componentname *cnp); 480 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 481 struct label *label, int prot); 482 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 483 struct vnode *vp, struct label *label, int *prot); 484 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 485 struct vnode *vp, struct label *label, int prot); 486 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 487 struct label *label, int acc_mode); 488 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 489 struct ucred *file_cred, struct vnode *vp, 490 struct label *label); 491 int (*mpo_check_vnode_read)(struct ucred *active_cred, 492 struct ucred *file_cred, struct vnode *vp, 493 struct label *label); 494 int (*mpo_check_vnode_readdir)(struct ucred *cred, 495 struct vnode *dvp, struct label *dlabel); 496 int (*mpo_check_vnode_readlink)(struct ucred *cred, 497 struct vnode *vp, struct label *label); 498 int (*mpo_check_vnode_relabel)(struct ucred *cred, 499 struct vnode *vp, struct label *vnodelabel, 500 struct label *newlabel); 501 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 502 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 503 struct label *label, struct componentname *cnp); 504 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 505 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 506 struct label *label, int samedir, 507 struct componentname *cnp); 508 int (*mpo_check_vnode_revoke)(struct ucred *cred, 509 struct vnode *vp, struct label *label); 510 int (*mpo_check_vnode_setacl)(struct ucred *cred, 511 struct vnode *vp, struct label *label, acl_type_t type, 512 struct acl *acl); 513 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 514 struct vnode *vp, struct label *label, int attrnamespace, 515 const char *name, struct uio *uio); 516 int (*mpo_check_vnode_setflags)(struct ucred *cred, 517 struct vnode *vp, struct label *label, u_long flags); 518 int (*mpo_check_vnode_setmode)(struct ucred *cred, 519 struct vnode *vp, struct label *label, mode_t mode); 520 int (*mpo_check_vnode_setowner)(struct ucred *cred, 521 struct vnode *vp, struct label *label, uid_t uid, 522 gid_t gid); 523 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 524 struct vnode *vp, struct label *label, 525 struct timespec atime, struct timespec mtime); 526 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 527 struct ucred *file_cred, struct vnode *vp, 528 struct label *label); 529 int (*mpo_check_vnode_write)(struct ucred *active_cred, 530 struct ucred *file_cred, struct vnode *vp, 531 struct label *label); 532 }; 533 534 /* 535 * struct mac_policy_conf is the registration structure for policies, and is 536 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT 537 * to register the policy. In general, the fields are immutable, with the 538 * exception of the "security field", run-time flags, and policy list entry, 539 * which are managed by the MAC Framework. Be careful when modifying this 540 * structure, as its layout is statically compiled into all policies. 541 */ 542 struct mac_policy_conf { 543 char *mpc_name; /* policy name */ 544 char *mpc_fullname; /* policy full name */ 545 struct mac_policy_ops *mpc_ops; /* policy operations */ 546 int mpc_loadtime_flags; /* flags */ 547 int *mpc_field_off; /* security field */ 548 int mpc_runtime_flags; /* flags */ 549 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 550 }; 551 552 /* Flags for the mpc_loadtime_flags field. */ 553 #define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 554 #define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 555 #define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 556 557 /* Flags for the mpc_runtime_flags field. */ 558 #define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 559 560 #define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ 561 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 562 #mpname, \ 563 mpfullname, \ 564 mpops, \ 565 mpflags, \ 566 privdata_wanted, \ 567 0, \ 568 }; \ 569 static moduledata_t mpname##_mod = { \ 570 #mpname, \ 571 mac_policy_modevent, \ 572 &mpname##_mac_policy_conf \ 573 }; \ 574 MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \ 575 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 576 SI_ORDER_MIDDLE) 577 578 int mac_policy_modevent(module_t mod, int type, void *data); 579 580 #define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 581 582 #endif /* !_SYS_MAC_POLICY_H_ */ 583