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