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
43 #include <sys/param.h>
45 #include <sys/kernel.h>
48 #include <sys/malloc.h>
49 #include <sys/module.h>
50 #include <sys/mount.h>
51 #include <sys/mutex.h>
53 #include <sys/systm.h>
54 #include <sys/vnode.h>
55 #include <sys/sysctl.h>
56 #include <sys/syslog.h>
59 #include <security/mac/mac_policy.h>
60 #include <security/mac_bsdextended/mac_bsdextended.h>
61 #include <security/mac_bsdextended/ugidfw_internal.h>
64 ugidfw_vnode_check_access(struct ucred *cred, struct vnode *vp,
65 struct label *vplabel, accmode_t accmode)
68 return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
72 ugidfw_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
73 struct label *dvplabel)
76 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
80 ugidfw_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
81 struct label *dvplabel)
84 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
88 ugidfw_check_create_vnode(struct ucred *cred, struct vnode *dvp,
89 struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
92 return (ugidfw_check_vp(cred, dvp, MBI_WRITE));
96 ugidfw_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
97 struct label *vplabel, acl_type_t type)
100 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
104 ugidfw_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
105 struct label *vplabel, int attrnamespace, const char *name)
108 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
112 ugidfw_vnode_check_exec(struct ucred *cred, struct vnode *vp,
113 struct label *vplabel, struct image_params *imgp,
114 struct label *execlabel)
117 return (ugidfw_check_vp(cred, vp, MBI_READ|MBI_EXEC));
121 ugidfw_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
122 struct label *vplabel, acl_type_t type)
125 return (ugidfw_check_vp(cred, vp, MBI_STAT));
129 ugidfw_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
130 struct label *vplabel, int attrnamespace, const char *name)
133 return (ugidfw_check_vp(cred, vp, MBI_READ));
137 ugidfw_vnode_check_link(struct ucred *cred, struct vnode *dvp,
138 struct label *dvplabel, struct vnode *vp, struct label *label,
139 struct componentname *cnp)
143 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
146 error = ugidfw_check_vp(cred, vp, MBI_WRITE);
153 ugidfw_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
154 struct label *vplabel, int attrnamespace)
157 return (ugidfw_check_vp(cred, vp, MBI_READ));
161 ugidfw_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
162 struct label *dvplabel, struct componentname *cnp)
165 return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
169 ugidfw_vnode_check_open(struct ucred *cred, struct vnode *vp,
170 struct label *vplabel, accmode_t accmode)
173 return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
177 ugidfw_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
178 struct label *dvplabel)
181 return (ugidfw_check_vp(cred, dvp, MBI_READ));
185 ugidfw_vnode_check_readdlink(struct ucred *cred, struct vnode *vp,
186 struct label *vplabel)
189 return (ugidfw_check_vp(cred, vp, MBI_READ));
193 ugidfw_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
194 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
195 struct componentname *cnp)
199 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
202 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
206 ugidfw_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
207 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
208 int samedir, struct componentname *cnp)
212 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
216 error = ugidfw_check_vp(cred, vp, MBI_WRITE);
221 ugidfw_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
222 struct label *vplabel)
225 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
229 ugidfw_check_setacl_vnode(struct ucred *cred, struct vnode *vp,
230 struct label *vplabel, acl_type_t type, struct acl *acl)
233 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
237 ugidfw_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
238 struct label *vplabel, int attrnamespace, const char *name)
241 return (ugidfw_check_vp(cred, vp, MBI_WRITE));
245 ugidfw_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
246 struct label *vplabel, u_long flags)
249 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
253 ugidfw_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
254 struct label *vplabel, mode_t mode)
257 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
261 ugidfw_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
262 struct label *vplabel, uid_t uid, gid_t gid)
265 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
269 ugidfw_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
270 struct label *vplabel, struct timespec atime, struct timespec utime)
273 return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
277 ugidfw_vnode_check_stat(struct ucred *active_cred,
278 struct ucred *file_cred, struct vnode *vp, struct label *vplabel)
281 return (ugidfw_check_vp(active_cred, vp, MBI_STAT));
285 ugidfw_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
286 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
287 struct componentname *cnp)
291 error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
294 return (ugidfw_check_vp(cred, vp, MBI_WRITE));