1 /*- 2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3 * Copyright (c) 2001, 2002 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 NAI Labs, 9 * the Security Research Division of Network Associates, Inc. under 10 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 11 * 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 * 3. The names of the authors may not be used to endorse or promote 22 * products derived from this software without specific prior written 23 * permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * $FreeBSD$ 38 */ 39 /* 40 * Kernel interface for MAC policy modules. 41 */ 42 #ifndef _SYS_MAC_POLICY_H 43 #define _SYS_MAC_POLICY_H 44 45 /*- 46 * Pluggable access control policy definition structure. 47 * 48 * List of operations that are performed as part of the implementation 49 * of a MAC policy. Policy implementors declare operations with a 50 * mac_policy_ops structure, and using the MAC_POLICY_SET() macro. 51 * If an entry point is not declared, then then the policy will be ignored 52 * during evaluation of that event or check. 53 * 54 * Operations are sorted first by general class of operation, then 55 * alphabetically. 56 */ 57 struct mac_policy_conf; 58 struct mac_policy_ops { 59 /* 60 * Policy module operations. 61 */ 62 void (*mpo_destroy)(struct mac_policy_conf *mpc); 63 void (*mpo_init)(struct mac_policy_conf *mpc); 64 65 /* 66 * General policy-directed security system call so that policies 67 * may implement new services without reserving explicit 68 * system call numbers. 69 */ 70 int (*mpo_syscall)(struct thread *td, int call, void *arg); 71 72 /* 73 * Label operations. 74 */ 75 void (*mpo_init_bpfdesc_label)(struct label *label); 76 void (*mpo_init_cred_label)(struct label *label); 77 void (*mpo_init_devfsdirent_label)(struct label *label); 78 void (*mpo_init_ifnet_label)(struct label *label); 79 void (*mpo_init_ipq_label)(struct label *label); 80 int (*mpo_init_mbuf_label)(struct label *label, int flag); 81 void (*mpo_init_mount_label)(struct label *label); 82 void (*mpo_init_mount_fs_label)(struct label *label); 83 int (*mpo_init_socket_label)(struct label *label, int flag); 84 int (*mpo_init_socket_peer_label)(struct label *label, int flag); 85 void (*mpo_init_pipe_label)(struct label *label); 86 void (*mpo_init_vnode_label)(struct label *label); 87 void (*mpo_destroy_bpfdesc_label)(struct label *label); 88 void (*mpo_destroy_cred_label)(struct label *label); 89 void (*mpo_destroy_devfsdirent_label)(struct label *label); 90 void (*mpo_destroy_ifnet_label)(struct label *label); 91 void (*mpo_destroy_ipq_label)(struct label *label); 92 void (*mpo_destroy_mbuf_label)(struct label *label); 93 void (*mpo_destroy_mount_label)(struct label *label); 94 void (*mpo_destroy_mount_fs_label)(struct label *label); 95 void (*mpo_destroy_socket_label)(struct label *label); 96 void (*mpo_destroy_socket_peer_label)(struct label *label); 97 void (*mpo_destroy_pipe_label)(struct label *label); 98 void (*mpo_destroy_vnode_label)(struct label *label); 99 void (*mpo_copy_pipe_label)(struct label *src, 100 struct label *dest); 101 void (*mpo_copy_vnode_label)(struct label *src, 102 struct label *dest); 103 int (*mpo_externalize_cred_label)(struct label *label, 104 char *element_name, char *buffer, size_t buflen, 105 size_t *len, int *claimed); 106 int (*mpo_externalize_ifnet_label)(struct label *label, 107 char *element_name, char *buffer, size_t buflen, 108 size_t *len, int *claimed); 109 int (*mpo_externalize_pipe_label)(struct label *label, 110 char *element_name, char *buffer, size_t buflen, 111 size_t *len, int *claimed); 112 int (*mpo_externalize_socket_label)(struct label *label, 113 char *element_name, char *buffer, size_t buflen, 114 size_t *len, int *claimed); 115 int (*mpo_externalize_socket_peer_label)(struct label *label, 116 char *element_name, char *buffer, size_t buflen, 117 size_t *len, int *claimed); 118 int (*mpo_externalize_vnode_label)(struct label *label, 119 char *element_name, char *buffer, size_t buflen, 120 size_t *len, int *claimed); 121 int (*mpo_internalize_cred_label)(struct label *label, 122 char *element_name, char *element_data, int *claimed); 123 int (*mpo_internalize_ifnet_label)(struct label *label, 124 char *element_name, char *element_data, int *claimed); 125 int (*mpo_internalize_pipe_label)(struct label *label, 126 char *element_name, char *element_data, int *claimed); 127 int (*mpo_internalize_socket_label)(struct label *label, 128 char *element_name, char *element_data, int *claimed); 129 int (*mpo_internalize_vnode_label)(struct label *label, 130 char *element_name, char *element_data, int *claimed); 131 132 /* 133 * Labeling event operations: file system objects, and things that 134 * look a lot like file system objects. 135 */ 136 void (*mpo_associate_vnode_devfs)(struct mount *mp, 137 struct label *fslabel, struct devfs_dirent *de, 138 struct label *delabel, struct vnode *vp, 139 struct label *vlabel); 140 int (*mpo_associate_vnode_extattr)(struct mount *mp, 141 struct label *fslabel, struct vnode *vp, 142 struct label *vlabel); 143 void (*mpo_associate_vnode_singlelabel)(struct mount *mp, 144 struct label *fslabel, struct vnode *vp, 145 struct label *vlabel); 146 void (*mpo_create_devfs_device)(dev_t dev, struct devfs_dirent *de, 147 struct label *label); 148 void (*mpo_create_devfs_directory)(char *dirname, int dirnamelen, 149 struct devfs_dirent *de, struct label *label); 150 void (*mpo_create_devfs_symlink)(struct ucred *cred, 151 struct devfs_dirent *dd, struct label *ddlabel, 152 struct devfs_dirent *de, struct label *delabel); 153 void (*mpo_create_devfs_vnode)(struct devfs_dirent *de, 154 struct label *direntlabel, struct vnode *vp, 155 struct label *vnodelabel); 156 int (*mpo_create_vnode_extattr)(struct ucred *cred, 157 struct mount *mp, struct label *fslabel, 158 struct vnode *dvp, struct label *dlabel, 159 struct vnode *vp, struct label *vlabel, 160 struct componentname *cnp); 161 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp, 162 struct label *mntlabel, struct label *fslabel); 163 void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp, 164 struct label *mountlabel, struct label *fslabel); 165 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp, 166 struct label *vnodelabel, struct label *label); 167 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred, 168 struct vnode *vp, struct label *vlabel, 169 struct label *intlabel); 170 void (*mpo_update_devfsdirent)(struct devfs_dirent *devfs_dirent, 171 struct label *direntlabel, struct vnode *vp, 172 struct label *vnodelabel); 173 174 /* 175 * Labeling event operations: IPC objects. 176 */ 177 void (*mpo_create_mbuf_from_socket)(struct socket *so, 178 struct label *socketlabel, struct mbuf *m, 179 struct label *mbuflabel); 180 void (*mpo_create_socket)(struct ucred *cred, struct socket *so, 181 struct label *socketlabel); 182 void (*mpo_create_socket_from_socket)(struct socket *oldsocket, 183 struct label *oldsocketlabel, struct socket *newsocket, 184 struct label *newsocketlabel); 185 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so, 186 struct label *oldlabel, struct label *newlabel); 187 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipe *pipe, 188 struct label *oldlabel, struct label *newlabel); 189 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf, 190 struct label *mbuflabel, struct socket *so, 191 struct label *socketpeerlabel); 192 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket, 193 struct label *oldsocketlabel, struct socket *newsocket, 194 struct label *newsocketpeerlabel); 195 void (*mpo_create_pipe)(struct ucred *cred, struct pipe *pipe, 196 struct label *pipelabel); 197 198 /* 199 * Labeling event operations: network objects. 200 */ 201 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d, 202 struct label *bpflabel); 203 void (*mpo_create_ifnet)(struct ifnet *ifnet, 204 struct label *ifnetlabel); 205 void (*mpo_create_ipq)(struct mbuf *fragment, 206 struct label *fragmentlabel, struct ipq *ipq, 207 struct label *ipqlabel); 208 void (*mpo_create_datagram_from_ipq) 209 (struct ipq *ipq, struct label *ipqlabel, 210 struct mbuf *datagram, struct label *datagramlabel); 211 void (*mpo_create_fragment)(struct mbuf *datagram, 212 struct label *datagramlabel, struct mbuf *fragment, 213 struct label *fragmentlabel); 214 void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf, 215 struct label *oldlabel, struct mbuf *newmbuf, 216 struct label *newlabel); 217 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet, 218 struct label *ifnetlabel, struct mbuf *mbuf, 219 struct label *mbuflabel); 220 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d, 221 struct label *bpflabel, struct mbuf *mbuf, 222 struct label *mbuflabel); 223 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet, 224 struct label *ifnetlabel, struct mbuf *mbuf, 225 struct label *mbuflabel); 226 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf, 227 struct label *oldmbuflabel, struct ifnet *ifnet, 228 struct label *ifnetlabel, struct mbuf *newmbuf, 229 struct label *newmbuflabel); 230 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf, 231 struct label *oldmbuflabel, struct mbuf *newmbuf, 232 struct label *newmbuflabel); 233 int (*mpo_fragment_match)(struct mbuf *fragment, 234 struct label *fragmentlabel, struct ipq *ipq, 235 struct label *ipqlabel); 236 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet, 237 struct label *ifnetlabel, struct label *newlabel); 238 void (*mpo_update_ipq)(struct mbuf *fragment, 239 struct label *fragmentlabel, struct ipq *ipq, 240 struct label *ipqlabel); 241 242 /* 243 * Labeling event operations: processes. 244 */ 245 void (*mpo_create_cred)(struct ucred *parent_cred, 246 struct ucred *child_cred); 247 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new, 248 struct vnode *vp, struct label *vnodelabel); 249 int (*mpo_execve_will_transition)(struct ucred *old, 250 struct vnode *vp, struct label *vnodelabel); 251 void (*mpo_create_proc0)(struct ucred *cred); 252 void (*mpo_create_proc1)(struct ucred *cred); 253 void (*mpo_relabel_cred)(struct ucred *cred, 254 struct label *newlabel); 255 void (*mpo_thread_userret)(struct thread *thread); 256 257 /* 258 * Access control checks. 259 */ 260 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d, 261 struct label *bpflabel, struct ifnet *ifnet, 262 struct label *ifnetlabel); 263 int (*mpo_check_cred_relabel)(struct ucred *cred, 264 struct label *newlabel); 265 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2); 266 int (*mpo_check_ifnet_relabel)(struct ucred *cred, 267 struct ifnet *ifnet, struct label *ifnetlabel, 268 struct label *newlabel); 269 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet, 270 struct label *ifnetlabel, struct mbuf *m, 271 struct label *mbuflabel); 272 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp, 273 struct label *mntlabel); 274 int (*mpo_check_pipe_ioctl)(struct ucred *cred, struct pipe *pipe, 275 struct label *pipelabel, unsigned long cmd, void *data); 276 int (*mpo_check_pipe_poll)(struct ucred *cred, struct pipe *pipe, 277 struct label *pipelabel); 278 int (*mpo_check_pipe_read)(struct ucred *cred, struct pipe *pipe, 279 struct label *pipelabel); 280 int (*mpo_check_pipe_relabel)(struct ucred *cred, 281 struct pipe *pipe, struct label *pipelabel, 282 struct label *newlabel); 283 int (*mpo_check_pipe_stat)(struct ucred *cred, struct pipe *pipe, 284 struct label *pipelabel); 285 int (*mpo_check_pipe_write)(struct ucred *cred, struct pipe *pipe, 286 struct label *pipelabel); 287 int (*mpo_check_proc_debug)(struct ucred *cred, 288 struct proc *proc); 289 int (*mpo_check_proc_sched)(struct ucred *cred, 290 struct proc *proc); 291 int (*mpo_check_proc_signal)(struct ucred *cred, 292 struct proc *proc, int signum); 293 int (*mpo_check_socket_bind)(struct ucred *cred, 294 struct socket *so, struct label *socketlabel, 295 struct sockaddr *sockaddr); 296 int (*mpo_check_socket_connect)(struct ucred *cred, 297 struct socket *so, struct label *socketlabel, 298 struct sockaddr *sockaddr); 299 int (*mpo_check_socket_deliver)(struct socket *so, 300 struct label *socketlabel, struct mbuf *m, 301 struct label *mbuflabel); 302 int (*mpo_check_socket_listen)(struct ucred *cred, 303 struct socket *so, struct label *socketlabel); 304 int (*mpo_check_socket_receive)(struct ucred *cred, 305 struct socket *so, struct label *socketlabel); 306 int (*mpo_check_socket_relabel)(struct ucred *cred, 307 struct socket *so, struct label *socketlabel, 308 struct label *newlabel); 309 int (*mpo_check_socket_send)(struct ucred *cred, 310 struct socket *so, struct label *socketlabel); 311 int (*mpo_check_socket_visible)(struct ucred *cred, 312 struct socket *so, struct label *socketlabel); 313 int (*mpo_check_vnode_access)(struct ucred *cred, 314 struct vnode *vp, struct label *label, int flags); 315 int (*mpo_check_vnode_chdir)(struct ucred *cred, 316 struct vnode *dvp, struct label *dlabel); 317 int (*mpo_check_vnode_chroot)(struct ucred *cred, 318 struct vnode *dvp, struct label *dlabel); 319 int (*mpo_check_vnode_create)(struct ucred *cred, 320 struct vnode *dvp, struct label *dlabel, 321 struct componentname *cnp, struct vattr *vap); 322 int (*mpo_check_vnode_delete)(struct ucred *cred, 323 struct vnode *dvp, struct label *dlabel, 324 struct vnode *vp, void *label, struct componentname *cnp); 325 int (*mpo_check_vnode_deleteacl)(struct ucred *cred, 326 struct vnode *vp, struct label *label, acl_type_t type); 327 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp, 328 struct label *label); 329 int (*mpo_check_vnode_getacl)(struct ucred *cred, 330 struct vnode *vp, struct label *label, acl_type_t type); 331 int (*mpo_check_vnode_getextattr)(struct ucred *cred, 332 struct vnode *vp, struct label *label, int attrnamespace, 333 const char *name, struct uio *uio); 334 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp, 335 struct label *dlabel, struct vnode *vp, 336 struct label *label, struct componentname *cnp); 337 int (*mpo_check_vnode_lookup)(struct ucred *cred, 338 struct vnode *dvp, struct label *dlabel, 339 struct componentname *cnp); 340 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp, 341 struct label *label, int prot); 342 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred, 343 struct vnode *vp, struct label *label, int *prot); 344 int (*mpo_check_vnode_mprotect)(struct ucred *cred, 345 struct vnode *vp, struct label *label, int prot); 346 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp, 347 struct label *label, mode_t acc_mode); 348 int (*mpo_check_vnode_poll)(struct ucred *active_cred, 349 struct ucred *file_cred, struct vnode *vp, 350 struct label *label); 351 int (*mpo_check_vnode_read)(struct ucred *active_cred, 352 struct ucred *file_cred, struct vnode *vp, 353 struct label *label); 354 int (*mpo_check_vnode_readdir)(struct ucred *cred, 355 struct vnode *dvp, struct label *dlabel); 356 int (*mpo_check_vnode_readlink)(struct ucred *cred, 357 struct vnode *vp, struct label *label); 358 int (*mpo_check_vnode_relabel)(struct ucred *cred, 359 struct vnode *vp, struct label *vnodelabel, 360 struct label *newlabel); 361 int (*mpo_check_vnode_rename_from)(struct ucred *cred, 362 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 363 struct label *label, struct componentname *cnp); 364 int (*mpo_check_vnode_rename_to)(struct ucred *cred, 365 struct vnode *dvp, struct label *dlabel, struct vnode *vp, 366 struct label *label, int samedir, 367 struct componentname *cnp); 368 int (*mpo_check_vnode_revoke)(struct ucred *cred, 369 struct vnode *vp, struct label *label); 370 int (*mpo_check_vnode_setacl)(struct ucred *cred, 371 struct vnode *vp, struct label *label, acl_type_t type, 372 struct acl *acl); 373 int (*mpo_check_vnode_setextattr)(struct ucred *cred, 374 struct vnode *vp, struct label *label, int attrnamespace, 375 const char *name, struct uio *uio); 376 int (*mpo_check_vnode_setflags)(struct ucred *cred, 377 struct vnode *vp, struct label *label, u_long flags); 378 int (*mpo_check_vnode_setmode)(struct ucred *cred, 379 struct vnode *vp, struct label *label, mode_t mode); 380 int (*mpo_check_vnode_setowner)(struct ucred *cred, 381 struct vnode *vp, struct label *label, uid_t uid, 382 gid_t gid); 383 int (*mpo_check_vnode_setutimes)(struct ucred *cred, 384 struct vnode *vp, struct label *label, 385 struct timespec atime, struct timespec mtime); 386 int (*mpo_check_vnode_stat)(struct ucred *active_cred, 387 struct ucred *file_cred, struct vnode *vp, 388 struct label *label); 389 int (*mpo_check_vnode_swapon)(struct ucred *cred, 390 struct vnode *vp, struct label *label); 391 int (*mpo_check_vnode_write)(struct ucred *active_cred, 392 struct ucred *file_cred, struct vnode *vp, 393 struct label *label); 394 }; 395 396 typedef const void *macop_t; 397 398 enum mac_op_constant { 399 MAC_OP_LAST, 400 MAC_DESTROY, 401 MAC_INIT, 402 MAC_SYSCALL, 403 MAC_INIT_BPFDESC_LABEL, 404 MAC_INIT_CRED_LABEL, 405 MAC_INIT_DEVFSDIRENT_LABEL, 406 MAC_INIT_IFNET_LABEL, 407 MAC_INIT_IPQ_LABEL, 408 MAC_INIT_MBUF_LABEL, 409 MAC_INIT_MOUNT_LABEL, 410 MAC_INIT_MOUNT_FS_LABEL, 411 MAC_INIT_PIPE_LABEL, 412 MAC_INIT_SOCKET_LABEL, 413 MAC_INIT_SOCKET_PEER_LABEL, 414 MAC_INIT_VNODE_LABEL, 415 MAC_DESTROY_BPFDESC_LABEL, 416 MAC_DESTROY_CRED_LABEL, 417 MAC_DESTROY_DEVFSDIRENT_LABEL, 418 MAC_DESTROY_IFNET_LABEL, 419 MAC_DESTROY_IPQ_LABEL, 420 MAC_DESTROY_MBUF_LABEL, 421 MAC_DESTROY_MOUNT_LABEL, 422 MAC_DESTROY_MOUNT_FS_LABEL, 423 MAC_DESTROY_PIPE_LABEL, 424 MAC_DESTROY_SOCKET_LABEL, 425 MAC_DESTROY_SOCKET_PEER_LABEL, 426 MAC_DESTROY_VNODE_LABEL, 427 MAC_COPY_PIPE_LABEL, 428 MAC_COPY_VNODE_LABEL, 429 MAC_EXTERNALIZE_CRED_LABEL, 430 MAC_EXTERNALIZE_IFNET_LABEL, 431 MAC_EXTERNALIZE_PIPE_LABEL, 432 MAC_EXTERNALIZE_SOCKET_LABEL, 433 MAC_EXTERNALIZE_SOCKET_PEER_LABEL, 434 MAC_EXTERNALIZE_VNODE_LABEL, 435 MAC_INTERNALIZE_CRED_LABEL, 436 MAC_INTERNALIZE_IFNET_LABEL, 437 MAC_INTERNALIZE_PIPE_LABEL, 438 MAC_INTERNALIZE_SOCKET_LABEL, 439 MAC_INTERNALIZE_VNODE_LABEL, 440 MAC_CREATE_DEVFS_DEVICE, 441 MAC_CREATE_DEVFS_DIRECTORY, 442 MAC_CREATE_DEVFS_SYMLINK, 443 MAC_CREATE_DEVFS_VNODE, 444 MAC_CREATE_MOUNT, 445 MAC_CREATE_ROOT_MOUNT, 446 MAC_RELABEL_VNODE, 447 MAC_UPDATE_DEVFSDIRENT, 448 MAC_ASSOCIATE_VNODE_DEVFS, 449 MAC_ASSOCIATE_VNODE_EXTATTR, 450 MAC_ASSOCIATE_VNODE_SINGLELABEL, 451 MAC_CREATE_VNODE_EXTATTR, 452 MAC_SETLABEL_VNODE_EXTATTR, 453 MAC_CREATE_MBUF_FROM_SOCKET, 454 MAC_CREATE_PIPE, 455 MAC_CREATE_SOCKET, 456 MAC_CREATE_SOCKET_FROM_SOCKET, 457 MAC_RELABEL_PIPE, 458 MAC_RELABEL_SOCKET, 459 MAC_SET_SOCKET_PEER_FROM_MBUF, 460 MAC_SET_SOCKET_PEER_FROM_SOCKET, 461 MAC_CREATE_BPFDESC, 462 MAC_CREATE_DATAGRAM_FROM_IPQ, 463 MAC_CREATE_IFNET, 464 MAC_CREATE_IPQ, 465 MAC_CREATE_FRAGMENT, 466 MAC_CREATE_MBUF_FROM_MBUF, 467 MAC_CREATE_MBUF_LINKLAYER, 468 MAC_CREATE_MBUF_FROM_BPFDESC, 469 MAC_CREATE_MBUF_FROM_IFNET, 470 MAC_CREATE_MBUF_MULTICAST_ENCAP, 471 MAC_CREATE_MBUF_NETLAYER, 472 MAC_FRAGMENT_MATCH, 473 MAC_RELABEL_IFNET, 474 MAC_UPDATE_IPQ, 475 MAC_CREATE_CRED, 476 MAC_EXECVE_TRANSITION, 477 MAC_EXECVE_WILL_TRANSITION, 478 MAC_CREATE_PROC0, 479 MAC_CREATE_PROC1, 480 MAC_RELABEL_CRED, 481 MAC_THREAD_USERRET, 482 MAC_CHECK_BPFDESC_RECEIVE, 483 MAC_CHECK_CRED_RELABEL, 484 MAC_CHECK_CRED_VISIBLE, 485 MAC_CHECK_IFNET_RELABEL, 486 MAC_CHECK_IFNET_TRANSMIT, 487 MAC_CHECK_MOUNT_STAT, 488 MAC_CHECK_PIPE_IOCTL, 489 MAC_CHECK_PIPE_POLL, 490 MAC_CHECK_PIPE_READ, 491 MAC_CHECK_PIPE_RELABEL, 492 MAC_CHECK_PIPE_STAT, 493 MAC_CHECK_PIPE_WRITE, 494 MAC_CHECK_PROC_DEBUG, 495 MAC_CHECK_PROC_SCHED, 496 MAC_CHECK_PROC_SIGNAL, 497 MAC_CHECK_SOCKET_BIND, 498 MAC_CHECK_SOCKET_CONNECT, 499 MAC_CHECK_SOCKET_DELIVER, 500 MAC_CHECK_SOCKET_LISTEN, 501 MAC_CHECK_SOCKET_RECEIVE, 502 MAC_CHECK_SOCKET_RELABEL, 503 MAC_CHECK_SOCKET_SEND, 504 MAC_CHECK_SOCKET_VISIBLE, 505 MAC_CHECK_VNODE_ACCESS, 506 MAC_CHECK_VNODE_CHDIR, 507 MAC_CHECK_VNODE_CHROOT, 508 MAC_CHECK_VNODE_CREATE, 509 MAC_CHECK_VNODE_DELETE, 510 MAC_CHECK_VNODE_DELETEACL, 511 MAC_CHECK_VNODE_EXEC, 512 MAC_CHECK_VNODE_GETACL, 513 MAC_CHECK_VNODE_GETEXTATTR, 514 MAC_CHECK_VNODE_LINK, 515 MAC_CHECK_VNODE_LOOKUP, 516 MAC_CHECK_VNODE_MMAP, 517 MAC_CHECK_VNODE_MMAP_DOWNGRADE, 518 MAC_CHECK_VNODE_MPROTECT, 519 MAC_CHECK_VNODE_OPEN, 520 MAC_CHECK_VNODE_POLL, 521 MAC_CHECK_VNODE_READ, 522 MAC_CHECK_VNODE_READDIR, 523 MAC_CHECK_VNODE_READLINK, 524 MAC_CHECK_VNODE_RELABEL, 525 MAC_CHECK_VNODE_RENAME_FROM, 526 MAC_CHECK_VNODE_RENAME_TO, 527 MAC_CHECK_VNODE_REVOKE, 528 MAC_CHECK_VNODE_SETACL, 529 MAC_CHECK_VNODE_SETEXTATTR, 530 MAC_CHECK_VNODE_SETFLAGS, 531 MAC_CHECK_VNODE_SETMODE, 532 MAC_CHECK_VNODE_SETOWNER, 533 MAC_CHECK_VNODE_SETUTIMES, 534 MAC_CHECK_VNODE_STAT, 535 MAC_CHECK_VNODE_SWAPON, 536 MAC_CHECK_VNODE_WRITE, 537 }; 538 539 struct mac_policy_op_entry { 540 enum mac_op_constant mpe_constant; /* what this hook implements */ 541 macop_t mpe_function; /* hook's implementation */ 542 }; 543 544 struct mac_policy_conf { 545 char *mpc_name; /* policy name */ 546 char *mpc_fullname; /* policy full name */ 547 struct mac_policy_ops *mpc_ops; /* policy operations */ 548 struct mac_policy_op_entry *mpc_entries; /* ops to fill in */ 549 int mpc_loadtime_flags; /* flags */ 550 int *mpc_field_off; /* security field */ 551 int mpc_runtime_flags; /* flags */ 552 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ 553 }; 554 555 /* Flags for the mpc_loadtime_flags field. */ 556 #define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 557 #define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 558 559 /* Flags for the mpc_runtime_flags field. */ 560 #define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 561 562 #define MAC_POLICY_SET(mpents, mpname, mpfullname, mpflags, privdata_wanted) \ 563 static struct mac_policy_conf mpname##_mac_policy_conf = { \ 564 #mpname, \ 565 mpfullname, \ 566 NULL, \ 567 mpents, \ 568 mpflags, \ 569 privdata_wanted, \ 570 0, \ 571 }; \ 572 static moduledata_t mpname##_mod = { \ 573 #mpname, \ 574 mac_policy_modevent, \ 575 &mpname##_mac_policy_conf \ 576 }; \ 577 MODULE_DEPEND(mpname, kernel_mac_support, 1, 1, 1); \ 578 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ 579 SI_ORDER_MIDDLE) 580 581 int mac_policy_modevent(module_t mod, int type, void *data); 582 583 #define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s] 584 585 #endif /* !_SYS_MAC_POLICY_H */ 586