2 * Copyright (c) 1999-2002, 2007-2008 Robert N. M. Watson
3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
4 * Copyright (c) 2005 Tom Rhodes
5 * Copyright (c) 2006 SPARTA, Inc.
8 * This software was developed by Robert Watson for the TrustedBSD Project.
9 * It was later enhanced by Tom Rhodes for the TrustedBSD Project.
11 * This software was developed for the FreeBSD Project in part by Network
12 * Associates Laboratories, the Security Research Division of Network
13 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
14 * as part of the DARPA CHATS research program.
16 * This software was enhanced by SPARTA ISSO under SPAWAR contract
17 * N66001-04-C-6019 ("SEFOS").
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
28 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/param.h>
43 #include <sys/kernel.h>
46 #include <sys/malloc.h>
47 #include <sys/module.h>
48 #include <sys/mount.h>
49 #include <sys/mutex.h>
51 #include <sys/systm.h>
52 #include <sys/vnode.h>
53 #include <sys/sysctl.h>
54 #include <sys/syslog.h>
57 #include <security/mac/mac_policy.h>
58 #include <security/mac_bsdextended/mac_bsdextended.h>
59 #include <security/mac_bsdextended/ugidfw_internal.h>
62 ugidfw_vnode_check_access(struct ucred *cred, struct vnode *vp,
63 struct label *vplabel, accmode_t accmode)
66 return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
70 ugidfw_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
71 struct label *dvplabel)
74 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
78 ugidfw_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
79 struct label *dvplabel)
82 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
86 ugidfw_check_create_vnode(struct ucred *cred, struct vnode *dvp,
87 struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
90 return (ugidfw_check_vp(cred, dvp, MBI_WRITE));
94 ugidfw_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
95 struct label *vplabel, acl_type_t type)
98 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
102 ugidfw_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
103 struct label *vplabel, int attrnamespace, const char *name)
106 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
110 ugidfw_vnode_check_exec(struct ucred *cred, struct vnode *vp,
111 struct label *vplabel, struct image_params *imgp,
112 struct label *execlabel)
115 return (ugidfw_check_vp(cred, vp, MBI_READ|MBI_EXEC));
119 ugidfw_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
120 struct label *vplabel, acl_type_t type)
123 return (ugidfw_check_vp(cred, vp, MBI_STAT));
127 ugidfw_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
128 struct label *vplabel, int attrnamespace, const char *name)
131 return (ugidfw_check_vp(cred, vp, MBI_READ));
135 ugidfw_vnode_check_link(struct ucred *cred, struct vnode *dvp,
136 struct label *dvplabel, struct vnode *vp, struct label *label,
137 struct componentname *cnp)
141 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
144 error = ugidfw_check_vp(cred, vp, MBI_WRITE);
151 ugidfw_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
152 struct label *vplabel, int attrnamespace)
155 return (ugidfw_check_vp(cred, vp, MBI_READ));
159 ugidfw_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
160 struct label *dvplabel, struct componentname *cnp)
163 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
167 ugidfw_vnode_check_open(struct ucred *cred, struct vnode *vp,
168 struct label *vplabel, accmode_t accmode)
171 return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
175 ugidfw_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
176 struct label *dvplabel)
179 return (ugidfw_check_vp(cred, dvp, MBI_READ));
183 ugidfw_vnode_check_readdlink(struct ucred *cred, struct vnode *vp,
184 struct label *vplabel)
187 return (ugidfw_check_vp(cred, vp, MBI_READ));
191 ugidfw_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
192 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
193 struct componentname *cnp)
197 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
200 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
204 ugidfw_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
205 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
206 int samedir, struct componentname *cnp)
210 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
214 error = ugidfw_check_vp(cred, vp, MBI_WRITE);
219 ugidfw_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
220 struct label *vplabel)
223 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
227 ugidfw_check_setacl_vnode(struct ucred *cred, struct vnode *vp,
228 struct label *vplabel, acl_type_t type, struct acl *acl)
231 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
235 ugidfw_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
236 struct label *vplabel, int attrnamespace, const char *name)
239 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
243 ugidfw_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
244 struct label *vplabel, u_long flags)
247 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
251 ugidfw_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
252 struct label *vplabel, mode_t mode)
255 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
259 ugidfw_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
260 struct label *vplabel, uid_t uid, gid_t gid)
263 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
267 ugidfw_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
268 struct label *vplabel, struct timespec atime, struct timespec utime)
271 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
275 ugidfw_vnode_check_stat(struct ucred *active_cred,
276 struct ucred *file_cred, struct vnode *vp, struct label *vplabel)
279 return (ugidfw_check_vp(active_cred, vp, MBI_STAT));
283 ugidfw_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
284 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
285 struct componentname *cnp)
289 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
292 return (ugidfw_check_vp(cred, vp, MBI_WRITE));