1 /*- 2 * Copyright (c) 1999-2002, 2007 Robert N. M. Watson 3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc. 4 * Copyright (c) 2005-2006 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 /* 42 * Kernel interface for Mandatory Access Control -- how kernel services 43 * interact with the TrustedBSD MAC Framework. 44 */ 45 46 #ifndef _SYS_SECURITY_MAC_MAC_FRAMEWORK_H_ 47 #define _SYS_SECURITY_MAC_MAC_FRAMEWORK_H_ 48 49 #ifndef _KERNEL 50 #error "no user-serviceable parts inside" 51 #endif 52 53 struct auditinfo; 54 struct auditinfo_addr; 55 struct bpf_d; 56 struct cdev; 57 struct componentname; 58 struct devfs_dirent; 59 struct ifnet; 60 struct ifreq; 61 struct image_params; 62 struct inpcb; 63 struct ipq; 64 struct ksem; 65 struct label; 66 struct m_tag; 67 struct mac; 68 struct mbuf; 69 struct mount; 70 struct msg; 71 struct msqid_kernel; 72 struct proc; 73 struct semid_kernel; 74 struct shmfd; 75 struct shmid_kernel; 76 struct sockaddr; 77 struct socket; 78 struct sysctl_oid; 79 struct sysctl_req; 80 struct pipepair; 81 struct thread; 82 struct timespec; 83 struct ucred; 84 struct uio; 85 struct vattr; 86 struct vnode; 87 struct vop_setlabel_args; 88 89 #include <sys/acl.h> /* XXX acl_type_t */ 90 91 /* 92 * Entry points to the TrustedBSD MAC Framework from the remainder of the 93 * kernel: entry points are named based on a principle object type and an 94 * action relating to it. They are sorted alphabetically first by object 95 * type and then action. In some situations, the principle object type is 96 * obvious, and in other cases, less so as multiple objects may be inolved 97 * in the operation. 98 */ 99 int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp); 100 void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d); 101 void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m); 102 void mac_bpfdesc_destroy(struct bpf_d *); 103 void mac_bpfdesc_init(struct bpf_d *); 104 105 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2); 106 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2); 107 void mac_cred_destroy(struct ucred *); 108 void mac_cred_init(struct ucred *); 109 110 void mac_devfs_create_device(struct ucred *cred, struct mount *mp, 111 struct cdev *dev, struct devfs_dirent *de); 112 void mac_devfs_create_directory(struct mount *mp, char *dirname, 113 int dirnamelen, struct devfs_dirent *de); 114 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp, 115 struct devfs_dirent *dd, struct devfs_dirent *de); 116 void mac_devfs_destroy(struct devfs_dirent *); 117 void mac_devfs_init(struct devfs_dirent *); 118 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de, 119 struct vnode *vp); 120 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de, 121 struct vnode *vp); 122 123 int mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m); 124 void mac_ifnet_create(struct ifnet *ifp); 125 void mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m); 126 void mac_ifnet_destroy(struct ifnet *); 127 void mac_ifnet_init(struct ifnet *); 128 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr, 129 struct ifnet *ifp); 130 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr, 131 struct ifnet *ifp); 132 133 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m); 134 void mac_inpcb_create(struct socket *so, struct inpcb *inp); 135 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m); 136 void mac_inpcb_destroy(struct inpcb *); 137 int mac_inpcb_init(struct inpcb *, int); 138 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); 139 140 void mac_ipq_create(struct mbuf *m, struct ipq *ipq); 141 void mac_ipq_destroy(struct ipq *); 142 int mac_ipq_init(struct ipq *, int); 143 int mac_ipq_match(struct mbuf *m, struct ipq *ipq); 144 void mac_ipq_reassemble(struct ipq *ipq, struct mbuf *m); 145 void mac_ipq_update(struct mbuf *m, struct ipq *ipq); 146 147 int mac_kenv_check_dump(struct ucred *cred); 148 int mac_kenv_check_get(struct ucred *cred, char *name); 149 int mac_kenv_check_set(struct ucred *cred, char *name, char *value); 150 int mac_kenv_check_unset(struct ucred *cred, char *name); 151 152 int mac_kld_check_load(struct ucred *cred, struct vnode *vp); 153 int mac_kld_check_stat(struct ucred *cred); 154 155 void mac_mbuf_copy(struct mbuf *, struct mbuf *); 156 int mac_mbuf_init(struct mbuf *, int); 157 158 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *); 159 void mac_mbuf_tag_destroy(struct m_tag *); 160 int mac_mbuf_tag_init(struct m_tag *, int); 161 162 int mac_mount_check_stat(struct ucred *cred, struct mount *mp); 163 void mac_mount_create(struct ucred *cred, struct mount *mp); 164 void mac_mount_destroy(struct mount *); 165 void mac_mount_init(struct mount *); 166 167 void mac_netatalk_aarp_send(struct ifnet *ifp, struct mbuf *m); 168 169 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m); 170 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend); 171 void mac_netinet_firewall_send(struct mbuf *m); 172 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag); 173 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend); 174 void mac_netinet_icmp_replyinplace(struct mbuf *m); 175 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m); 176 void mac_netinet_tcp_reply(struct mbuf *m); 177 178 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m); 179 180 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, 181 unsigned long cmd, void *data); 182 int mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp); 183 int mac_pipe_check_read(struct ucred *cred, struct pipepair *pp); 184 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp); 185 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp); 186 void mac_pipe_create(struct ucred *cred, struct pipepair *pp); 187 void mac_pipe_destroy(struct pipepair *); 188 void mac_pipe_init(struct pipepair *); 189 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, 190 struct label *label); 191 192 int mac_posixsem_check_destroy(struct ucred *cred, struct ksem *ks); 193 int mac_posixsem_check_getvalue(struct ucred *cred,struct ksem *ks); 194 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks); 195 int mac_posixsem_check_post(struct ucred *cred, struct ksem *ks); 196 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks); 197 int mac_posixsem_check_wait(struct ucred *cred, struct ksem *ks); 198 void mac_posixsem_create(struct ucred *cred, struct ksem *ks); 199 void mac_posixsem_destroy(struct ksem *); 200 void mac_posixsem_init(struct ksem *); 201 202 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, 203 int prot, int flags); 204 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd); 205 int mac_posixshm_check_stat(struct ucred *active_cred, 206 struct ucred *file_cred, struct shmfd *shmfd); 207 int mac_posixshm_check_truncate(struct ucred *active_cred, 208 struct ucred *file_cred, struct shmfd *shmfd); 209 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd); 210 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd); 211 void mac_posixshm_destroy(struct shmfd *); 212 void mac_posixshm_init(struct shmfd *); 213 214 int mac_priv_check(struct ucred *cred, int priv); 215 int mac_priv_grant(struct ucred *cred, int priv); 216 217 void mac_proc_associate_nfsd(struct ucred *cred); 218 int mac_proc_check_debug(struct ucred *cred, struct proc *p); 219 int mac_proc_check_sched(struct ucred *cred, struct proc *p); 220 int mac_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai); 221 int mac_proc_check_setaudit_addr(struct ucred *cred, 222 struct auditinfo_addr *aia); 223 int mac_proc_check_setauid(struct ucred *cred, uid_t auid); 224 int mac_proc_check_setegid(struct proc *p, struct ucred *cred, 225 gid_t egid); 226 int mac_proc_check_seteuid(struct proc *p, struct ucred *cred, 227 uid_t euid); 228 int mac_proc_check_setgid(struct proc *p, struct ucred *cred, 229 gid_t gid); 230 int mac_proc_check_setgroups(struct proc *p, struct ucred *cred, 231 int ngroups, gid_t *gidset); 232 int mac_proc_check_setregid(struct proc *p, struct ucred *cred, 233 gid_t rgid, gid_t egid); 234 int mac_proc_check_setresgid(struct proc *p, struct ucred *cred, 235 gid_t rgid, gid_t egid, gid_t sgid); 236 int mac_proc_check_setresuid(struct proc *p, struct ucred *cred, 237 uid_t ruid, uid_t euid, uid_t suid); 238 int mac_proc_check_setreuid(struct proc *p, struct ucred *cred, 239 uid_t ruid, uid_t euid); 240 int mac_proc_check_setuid(struct proc *p, struct ucred *cred, 241 uid_t uid); 242 int mac_proc_check_signal(struct ucred *cred, struct proc *p, 243 int signum); 244 int mac_proc_check_wait(struct ucred *cred, struct proc *p); 245 void mac_proc_create_init(struct ucred *cred); 246 void mac_proc_create_swapper(struct ucred *cred); 247 void mac_proc_destroy(struct proc *); 248 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); 249 void mac_execve_exit(struct image_params *imgp); 250 void mac_proc_init(struct proc *); 251 252 int mac_socket_check_accept(struct ucred *cred, struct socket *so); 253 int mac_socket_check_bind(struct ucred *cred, struct socket *so, 254 struct sockaddr *sa); 255 int mac_socket_check_connect(struct ucred *cred, struct socket *so, 256 struct sockaddr *sa); 257 int mac_socket_check_create(struct ucred *cred, int domain, int type, 258 int proto); 259 int mac_socket_check_deliver(struct socket *so, struct mbuf *m); 260 int mac_socket_check_listen(struct ucred *cred, struct socket *so); 261 int mac_socket_check_poll(struct ucred *cred, struct socket *so); 262 int mac_socket_check_receive(struct ucred *cred, struct socket *so); 263 int mac_socket_check_send(struct ucred *cred, struct socket *so); 264 int mac_socket_check_stat(struct ucred *cred, struct socket *so); 265 int mac_socket_check_visible(struct ucred *cred, struct socket *so); 266 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m); 267 void mac_socket_create(struct ucred *cred, struct socket *so); 268 void mac_socket_destroy(struct socket *); 269 int mac_socket_init(struct socket *, int); 270 void mac_socket_newconn(struct socket *oldso, struct socket *newso); 271 int mac_getsockopt_label(struct ucred *cred, struct socket *so, 272 struct mac *extmac); 273 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, 274 struct mac *extmac); 275 int mac_setsockopt_label(struct ucred *cred, struct socket *so, 276 struct mac *extmac); 277 278 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so); 279 void mac_socketpeer_set_from_socket(struct socket *oldso, 280 struct socket *newso); 281 282 void mac_syncache_create(struct label *l, struct inpcb *inp); 283 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m); 284 void mac_syncache_destroy(struct label **l); 285 int mac_syncache_init(struct label **l); 286 287 int mac_system_check_acct(struct ucred *cred, struct vnode *vp); 288 int mac_system_check_audit(struct ucred *cred, void *record, int length); 289 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp); 290 int mac_system_check_auditon(struct ucred *cred, int cmd); 291 int mac_system_check_reboot(struct ucred *cred, int howto); 292 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp); 293 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp); 294 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 295 void *arg1, int arg2, struct sysctl_req *req); 296 297 void mac_sysvmsg_cleanup(struct msg *msgptr); 298 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, 299 struct msg *msgptr); 300 void mac_sysvmsg_destroy(struct msg *); 301 void mac_sysvmsg_init(struct msg *); 302 303 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, 304 struct msqid_kernel *msqkptr); 305 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr); 306 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr); 307 int mac_sysvmsq_check_msqctl(struct ucred *cred, 308 struct msqid_kernel *msqkptr, int cmd); 309 int mac_sysvmsq_check_msqget(struct ucred *cred, 310 struct msqid_kernel *msqkptr); 311 int mac_sysvmsq_check_msqrcv(struct ucred *cred, 312 struct msqid_kernel *msqkptr); 313 int mac_sysvmsq_check_msqsnd(struct ucred *cred, 314 struct msqid_kernel *msqkptr); 315 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr); 316 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr); 317 void mac_sysvmsq_destroy(struct msqid_kernel *); 318 void mac_sysvmsq_init(struct msqid_kernel *); 319 320 int mac_sysvsem_check_semctl(struct ucred *cred, 321 struct semid_kernel *semakptr, int cmd); 322 int mac_sysvsem_check_semget(struct ucred *cred, 323 struct semid_kernel *semakptr); 324 int mac_sysvsem_check_semop(struct ucred *cred, 325 struct semid_kernel *semakptr, size_t accesstype); 326 void mac_sysvsem_cleanup(struct semid_kernel *semakptr); 327 void mac_sysvsem_create(struct ucred *cred, 328 struct semid_kernel *semakptr); 329 void mac_sysvsem_destroy(struct semid_kernel *); 330 void mac_sysvsem_init(struct semid_kernel *); 331 332 int mac_sysvshm_check_shmat(struct ucred *cred, 333 struct shmid_kernel *shmsegptr, int shmflg); 334 int mac_sysvshm_check_shmctl(struct ucred *cred, 335 struct shmid_kernel *shmsegptr, int cmd); 336 int mac_sysvshm_check_shmdt(struct ucred *cred, 337 struct shmid_kernel *shmsegptr); 338 int mac_sysvshm_check_shmget(struct ucred *cred, 339 struct shmid_kernel *shmsegptr, int shmflg); 340 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr); 341 void mac_sysvshm_create(struct ucred *cred, 342 struct shmid_kernel *shmsegptr); 343 void mac_sysvshm_destroy(struct shmid_kernel *); 344 void mac_sysvshm_init(struct shmid_kernel *); 345 346 void mac_thread_userret(struct thread *td); 347 348 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp); 349 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp); 350 int mac_vnode_check_access(struct ucred *cred, struct vnode *vp, 351 int acc_mode); 352 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp); 353 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp); 354 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp, 355 struct componentname *cnp, struct vattr *vap); 356 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, 357 acl_type_t type); 358 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, 359 int attrnamespace, const char *name); 360 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp, 361 struct image_params *imgp); 362 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp, 363 acl_type_t type); 364 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, 365 int attrnamespace, const char *name, struct uio *uio); 366 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp, 367 struct vnode *vp, struct componentname *cnp); 368 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, 369 int attrnamespace); 370 int mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, 371 struct componentname *cnp); 372 int mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot, 373 int flags); 374 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, 375 int prot); 376 int mac_vnode_check_open(struct ucred *cred, struct vnode *vp, 377 int acc_mode); 378 int mac_vnode_check_poll(struct ucred *active_cred, 379 struct ucred *file_cred, struct vnode *vp); 380 int mac_vnode_check_read(struct ucred *active_cred, 381 struct ucred *file_cred, struct vnode *vp); 382 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp); 383 int mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp); 384 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, 385 struct vnode *vp, struct componentname *cnp); 386 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, 387 struct vnode *vp, int samedir, struct componentname *cnp); 388 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp); 389 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp, 390 acl_type_t type, struct acl *acl); 391 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, 392 int attrnamespace, const char *name, struct uio *uio); 393 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp, 394 u_long flags); 395 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp, 396 mode_t mode); 397 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp, 398 uid_t uid, gid_t gid); 399 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, 400 struct timespec atime, struct timespec mtime); 401 int mac_vnode_check_stat(struct ucred *active_cred, 402 struct ucred *file_cred, struct vnode *vp); 403 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, 404 struct vnode *vp, struct componentname *cnp); 405 int mac_vnode_check_write(struct ucred *active_cred, 406 struct ucred *file_cred, struct vnode *vp); 407 void mac_vnode_copy_label(struct label *, struct label *); 408 void mac_vnode_init(struct vnode *); 409 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp, 410 struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 411 void mac_vnode_destroy(struct vnode *); 412 void mac_vnode_execve_transition(struct ucred *oldcred, 413 struct ucred *newcred, struct vnode *vp, 414 struct label *interpvplabel, struct image_params *imgp); 415 int mac_vnode_execve_will_transition(struct ucred *cred, 416 struct vnode *vp, struct label *interpvplabel, 417 struct image_params *imgp); 418 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp, 419 struct label *newlabel); 420 421 struct label *mac_cred_label_alloc(void); 422 void mac_cred_label_free(struct label *); 423 struct label *mac_vnode_label_alloc(void); 424 void mac_vnode_label_free(struct label *); 425 426 void mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred); 427 428 /* 429 * Calls to help various file systems implement labeling functionality using 430 * their existing EA implementation. 431 */ 432 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 433 434 #endif /* !_SYS_SECURITY_MAC_MAC_FRAMEWORK_H_ */ 435