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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: head/sys/security/mac/mac_framework.h 179963 2008-06-23 21:37:53Z jhb $
38 * $FreeBSD: head/sys/security/mac/mac_framework.h 180059 2008-06-27 05:39:04Z jhb $
39 */
40
41/*
42 * Kernel interface for Mandatory Access Control -- how kernel services
43 * interact with the TrustedBSD MAC Framework.
44 */
45
46#ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_
47#define _SECURITY_MAC_MAC_FRAMEWORK_H_
48
49#ifndef _KERNEL
50#error "no user-serviceable parts inside"
51#endif
52
53struct auditinfo;
54struct auditinfo_addr;
55struct bpf_d;
56struct cdev;
57struct componentname;
58struct devfs_dirent;
59struct ifnet;
60struct ifreq;
61struct image_params;
62struct inpcb;
63struct ipq;
64struct ksem;
65struct label;
66struct m_tag;
67struct mac;
68struct mbuf;
69struct mount;
70struct msg;
71struct msqid_kernel;
72struct proc;
73struct semid_kernel;
74struct shmfd;
75struct shmid_kernel;
76struct sockaddr;
77struct socket;
78struct sysctl_oid;
79struct sysctl_req;
80struct pipepair;
81struct thread;
82struct timespec;
83struct ucred;
84struct uio;
85struct vattr;
86struct vnode;
87struct 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 */
99int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp);
100void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d);
101void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m);
102void mac_bpfdesc_destroy(struct bpf_d *);
103void mac_bpfdesc_init(struct bpf_d *);
104
105int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2);
106void mac_cred_copy(struct ucred *cr1, struct ucred *cr2);
107void mac_cred_destroy(struct ucred *);
108void mac_cred_init(struct ucred *);
109
110void mac_devfs_create_device(struct ucred *cred, struct mount *mp,
111 struct cdev *dev, struct devfs_dirent *de);
112void mac_devfs_create_directory(struct mount *mp, char *dirname,
113 int dirnamelen, struct devfs_dirent *de);
114void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp,
115 struct devfs_dirent *dd, struct devfs_dirent *de);
116void mac_devfs_destroy(struct devfs_dirent *);
117void mac_devfs_init(struct devfs_dirent *);
118void mac_devfs_update(struct mount *mp, struct devfs_dirent *de,
119 struct vnode *vp);
120void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de,
121 struct vnode *vp);
122
123int mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m);
124void mac_ifnet_create(struct ifnet *ifp);
125void mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m);
126void mac_ifnet_destroy(struct ifnet *);
127void mac_ifnet_init(struct ifnet *);
128int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr,
129 struct ifnet *ifp);
130int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr,
131 struct ifnet *ifp);
132
133int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m);
134void mac_inpcb_create(struct socket *so, struct inpcb *inp);
135void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m);
136void mac_inpcb_destroy(struct inpcb *);
137int mac_inpcb_init(struct inpcb *, int);
138void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp);
139
140void mac_ipq_create(struct mbuf *m, struct ipq *q);
141void mac_ipq_destroy(struct ipq *q);
142int mac_ipq_init(struct ipq *q, int);
143int mac_ipq_match(struct mbuf *m, struct ipq *q);
144void mac_ipq_reassemble(struct ipq *q, struct mbuf *m);
145void mac_ipq_update(struct mbuf *m, struct ipq *q);
146
147int mac_kenv_check_dump(struct ucred *cred);
148int mac_kenv_check_get(struct ucred *cred, char *name);
149int mac_kenv_check_set(struct ucred *cred, char *name, char *value);
150int mac_kenv_check_unset(struct ucred *cred, char *name);
151
152int mac_kld_check_load(struct ucred *cred, struct vnode *vp);
153int mac_kld_check_stat(struct ucred *cred);
154
155void mac_mbuf_copy(struct mbuf *, struct mbuf *);
156int mac_mbuf_init(struct mbuf *, int);
157
158void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *);
159void mac_mbuf_tag_destroy(struct m_tag *);
160int mac_mbuf_tag_init(struct m_tag *, int);
161
162int mac_mount_check_stat(struct ucred *cred, struct mount *mp);
163void mac_mount_create(struct ucred *cred, struct mount *mp);
164void mac_mount_destroy(struct mount *);
165void mac_mount_init(struct mount *);
166
167void mac_netatalk_aarp_send(struct ifnet *ifp, struct mbuf *m);
168
169void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m);
170void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend);
171void mac_netinet_firewall_send(struct mbuf *m);
172void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag);
173void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend);
174void mac_netinet_icmp_replyinplace(struct mbuf *m);
175void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m);
176void mac_netinet_tcp_reply(struct mbuf *m);
177
178void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m);
179
180int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
181 unsigned long cmd, void *data);
182int mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp);
183int mac_pipe_check_read(struct ucred *cred, struct pipepair *pp);
184int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp);
185int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp);
186void mac_pipe_create(struct ucred *cred, struct pipepair *pp);
187void mac_pipe_destroy(struct pipepair *);
188void mac_pipe_init(struct pipepair *);
189int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
190 struct label *label);
191
192int mac_posixsem_check_getvalue(struct ucred *cred,struct ksem *ks);
192int mac_posixsem_check_getvalue(struct ucred *active_cred,
193 struct ucred *file_cred, struct ksem *ks);
194int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks);
194int mac_posixsem_check_post(struct ucred *cred, struct ksem *ks);
195int mac_posixsem_check_post(struct ucred *active_cred,
196 struct ucred *file_cred, struct ksem *ks);
197int mac_posixsem_check_stat(struct ucred *active_cred,
198 struct ucred *file_cred, struct ksem *ks);
199int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks);
196int mac_posixsem_check_wait(struct ucred *cred, struct ksem *ks);
200int mac_posixsem_check_wait(struct ucred *active_cred,
201 struct ucred *file_cred, struct ksem *ks);
202void mac_posixsem_create(struct ucred *cred, struct ksem *ks);
203void mac_posixsem_destroy(struct ksem *);
204void mac_posixsem_init(struct ksem *);
205
206int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
207 int prot, int flags);
208int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd);
209int mac_posixshm_check_stat(struct ucred *active_cred,
210 struct ucred *file_cred, struct shmfd *shmfd);
211int mac_posixshm_check_truncate(struct ucred *active_cred,
212 struct ucred *file_cred, struct shmfd *shmfd);
213int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd);
214void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd);
215void mac_posixshm_destroy(struct shmfd *);
216void mac_posixshm_init(struct shmfd *);
217
218int mac_priv_check(struct ucred *cred, int priv);
219int mac_priv_grant(struct ucred *cred, int priv);
220
221void mac_proc_associate_nfsd(struct ucred *cred);
222int mac_proc_check_debug(struct ucred *cred, struct proc *p);
223int mac_proc_check_sched(struct ucred *cred, struct proc *p);
224int mac_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai);
225int mac_proc_check_setaudit_addr(struct ucred *cred,
226 struct auditinfo_addr *aia);
227int mac_proc_check_setauid(struct ucred *cred, uid_t auid);
228int mac_proc_check_setegid(struct proc *p, struct ucred *cred,
229 gid_t egid);
230int mac_proc_check_seteuid(struct proc *p, struct ucred *cred,
231 uid_t euid);
232int mac_proc_check_setgid(struct proc *p, struct ucred *cred,
233 gid_t gid);
234int mac_proc_check_setgroups(struct proc *p, struct ucred *cred,
235 int ngroups, gid_t *gidset);
236int mac_proc_check_setregid(struct proc *p, struct ucred *cred,
237 gid_t rgid, gid_t egid);
238int mac_proc_check_setresgid(struct proc *p, struct ucred *cred,
239 gid_t rgid, gid_t egid, gid_t sgid);
240int mac_proc_check_setresuid(struct proc *p, struct ucred *cred,
241 uid_t ruid, uid_t euid, uid_t suid);
242int mac_proc_check_setreuid(struct proc *p, struct ucred *cred,
243 uid_t ruid, uid_t euid);
244int mac_proc_check_setuid(struct proc *p, struct ucred *cred,
245 uid_t uid);
246int mac_proc_check_signal(struct ucred *cred, struct proc *p,
247 int signum);
248int mac_proc_check_wait(struct ucred *cred, struct proc *p);
249void mac_proc_create_init(struct ucred *cred);
250void mac_proc_create_swapper(struct ucred *cred);
251void mac_proc_destroy(struct proc *);
252int mac_execve_enter(struct image_params *imgp, struct mac *mac_p);
253void mac_execve_exit(struct image_params *imgp);
254void mac_proc_init(struct proc *);
255
256int mac_socket_check_accept(struct ucred *cred, struct socket *so);
257int mac_socket_check_bind(struct ucred *cred, struct socket *so,
258 struct sockaddr *sa);
259int mac_socket_check_connect(struct ucred *cred, struct socket *so,
260 struct sockaddr *sa);
261int mac_socket_check_create(struct ucred *cred, int domain, int type,
262 int proto);
263int mac_socket_check_deliver(struct socket *so, struct mbuf *m);
264int mac_socket_check_listen(struct ucred *cred, struct socket *so);
265int mac_socket_check_poll(struct ucred *cred, struct socket *so);
266int mac_socket_check_receive(struct ucred *cred, struct socket *so);
267int mac_socket_check_send(struct ucred *cred, struct socket *so);
268int mac_socket_check_stat(struct ucred *cred, struct socket *so);
269int mac_socket_check_visible(struct ucred *cred, struct socket *so);
270void mac_socket_create_mbuf(struct socket *so, struct mbuf *m);
271void mac_socket_create(struct ucred *cred, struct socket *so);
272void mac_socket_destroy(struct socket *);
273int mac_socket_init(struct socket *, int);
274void mac_socket_newconn(struct socket *oldso, struct socket *newso);
275int mac_getsockopt_label(struct ucred *cred, struct socket *so,
276 struct mac *extmac);
277int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
278 struct mac *extmac);
279int mac_setsockopt_label(struct ucred *cred, struct socket *so,
280 struct mac *extmac);
281
282void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so);
283void mac_socketpeer_set_from_socket(struct socket *oldso,
284 struct socket *newso);
285
286void mac_syncache_create(struct label *l, struct inpcb *inp);
287void mac_syncache_create_mbuf(struct label *l, struct mbuf *m);
288void mac_syncache_destroy(struct label **l);
289int mac_syncache_init(struct label **l);
290
291int mac_system_check_acct(struct ucred *cred, struct vnode *vp);
292int mac_system_check_audit(struct ucred *cred, void *record, int length);
293int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp);
294int mac_system_check_auditon(struct ucred *cred, int cmd);
295int mac_system_check_reboot(struct ucred *cred, int howto);
296int mac_system_check_swapon(struct ucred *cred, struct vnode *vp);
297int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp);
298int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
299 void *arg1, int arg2, struct sysctl_req *req);
300
301void mac_sysvmsg_cleanup(struct msg *msgptr);
302void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
303 struct msg *msgptr);
304void mac_sysvmsg_destroy(struct msg *);
305void mac_sysvmsg_init(struct msg *);
306
307int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
308 struct msqid_kernel *msqkptr);
309int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr);
310int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr);
311int mac_sysvmsq_check_msqctl(struct ucred *cred,
312 struct msqid_kernel *msqkptr, int cmd);
313int mac_sysvmsq_check_msqget(struct ucred *cred,
314 struct msqid_kernel *msqkptr);
315int mac_sysvmsq_check_msqrcv(struct ucred *cred,
316 struct msqid_kernel *msqkptr);
317int mac_sysvmsq_check_msqsnd(struct ucred *cred,
318 struct msqid_kernel *msqkptr);
319void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr);
320void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr);
321void mac_sysvmsq_destroy(struct msqid_kernel *);
322void mac_sysvmsq_init(struct msqid_kernel *);
323
324int mac_sysvsem_check_semctl(struct ucred *cred,
325 struct semid_kernel *semakptr, int cmd);
326int mac_sysvsem_check_semget(struct ucred *cred,
327 struct semid_kernel *semakptr);
328int mac_sysvsem_check_semop(struct ucred *cred,
329 struct semid_kernel *semakptr, size_t accesstype);
330void mac_sysvsem_cleanup(struct semid_kernel *semakptr);
331void mac_sysvsem_create(struct ucred *cred,
332 struct semid_kernel *semakptr);
333void mac_sysvsem_destroy(struct semid_kernel *);
334void mac_sysvsem_init(struct semid_kernel *);
335
336int mac_sysvshm_check_shmat(struct ucred *cred,
337 struct shmid_kernel *shmsegptr, int shmflg);
338int mac_sysvshm_check_shmctl(struct ucred *cred,
339 struct shmid_kernel *shmsegptr, int cmd);
340int mac_sysvshm_check_shmdt(struct ucred *cred,
341 struct shmid_kernel *shmsegptr);
342int mac_sysvshm_check_shmget(struct ucred *cred,
343 struct shmid_kernel *shmsegptr, int shmflg);
344void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr);
345void mac_sysvshm_create(struct ucred *cred,
346 struct shmid_kernel *shmsegptr);
347void mac_sysvshm_destroy(struct shmid_kernel *);
348void mac_sysvshm_init(struct shmid_kernel *);
349
350void mac_thread_userret(struct thread *td);
351
352int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp);
353void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp);
354int mac_vnode_check_access(struct ucred *cred, struct vnode *vp,
355 int acc_mode);
356int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp);
357int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp);
358int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp,
359 struct componentname *cnp, struct vattr *vap);
360int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
361 acl_type_t type);
362int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
363 int attrnamespace, const char *name);
364int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp,
365 struct image_params *imgp);
366int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
367 acl_type_t type);
368int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
369 int attrnamespace, const char *name, struct uio *uio);
370int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp,
371 struct vnode *vp, struct componentname *cnp);
372int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
373 int attrnamespace);
374int mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
375 struct componentname *cnp);
376int mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot,
377 int flags);
378int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
379 int prot);
380int mac_vnode_check_open(struct ucred *cred, struct vnode *vp,
381 int acc_mode);
382int mac_vnode_check_poll(struct ucred *active_cred,
383 struct ucred *file_cred, struct vnode *vp);
384int mac_vnode_check_read(struct ucred *active_cred,
385 struct ucred *file_cred, struct vnode *vp);
386int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp);
387int mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp);
388int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
389 struct vnode *vp, struct componentname *cnp);
390int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
391 struct vnode *vp, int samedir, struct componentname *cnp);
392int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp);
393int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
394 acl_type_t type, struct acl *acl);
395int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
396 int attrnamespace, const char *name, struct uio *uio);
397int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
398 u_long flags);
399int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
400 mode_t mode);
401int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
402 uid_t uid, gid_t gid);
403int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
404 struct timespec atime, struct timespec mtime);
405int mac_vnode_check_stat(struct ucred *active_cred,
406 struct ucred *file_cred, struct vnode *vp);
407int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
408 struct vnode *vp, struct componentname *cnp);
409int mac_vnode_check_write(struct ucred *active_cred,
410 struct ucred *file_cred, struct vnode *vp);
411void mac_vnode_copy_label(struct label *, struct label *);
412void mac_vnode_init(struct vnode *);
413int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
414 struct vnode *dvp, struct vnode *vp, struct componentname *cnp);
415void mac_vnode_destroy(struct vnode *);
416void mac_vnode_execve_transition(struct ucred *oldcred,
417 struct ucred *newcred, struct vnode *vp,
418 struct label *interpvplabel, struct image_params *imgp);
419int mac_vnode_execve_will_transition(struct ucred *cred,
420 struct vnode *vp, struct label *interpvplabel,
421 struct image_params *imgp);
422void mac_vnode_relabel(struct ucred *cred, struct vnode *vp,
423 struct label *newlabel);
424
425struct label *mac_cred_label_alloc(void);
426void mac_cred_label_free(struct label *);
427struct label *mac_vnode_label_alloc(void);
428void mac_vnode_label_free(struct label *);
429
430void mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred);
431
432/*
433 * Calls to help various file systems implement labeling functionality using
434 * their existing EA implementation.
435 */
436int vop_stdsetlabel_ea(struct vop_setlabel_args *ap);
437
438#endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */