2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
5 * This software was developed for the FreeBSD Project in part by Network
6 * Associates Laboratories, the Security Research Division of Network
7 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
8 * as part of the DARPA CHATS research program.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
37 #include <sys/param.h>
38 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/module.h>
42 #include <sys/mutex.h>
44 #include <sys/systm.h>
45 #include <sys/vnode.h>
47 #include <sys/sysctl.h>
49 #include <security/mac/mac_framework.h>
50 #include <security/mac/mac_internal.h>
51 #include <security/mac/mac_policy.h>
54 mac_pipe_label_alloc(void)
58 label = mac_labelzone_alloc(M_WAITOK);
59 MAC_PERFORM(init_pipe_label, label);
64 mac_init_pipe(struct pipepair *pp)
67 pp->pp_label = mac_pipe_label_alloc();
71 mac_pipe_label_free(struct label *label)
74 MAC_PERFORM(destroy_pipe_label, label);
75 mac_labelzone_free(label);
79 mac_destroy_pipe(struct pipepair *pp)
82 mac_pipe_label_free(pp->pp_label);
87 mac_copy_pipe_label(struct label *src, struct label *dest)
90 MAC_PERFORM(copy_pipe_label, src, dest);
94 mac_externalize_pipe_label(struct label *label, char *elements,
95 char *outbuf, size_t outbuflen)
99 MAC_EXTERNALIZE(pipe, label, elements, outbuf, outbuflen);
105 mac_internalize_pipe_label(struct label *label, char *string)
109 MAC_INTERNALIZE(pipe, label, string);
115 mac_create_pipe(struct ucred *cred, struct pipepair *pp)
118 MAC_PERFORM(create_pipe, cred, pp, pp->pp_label);
122 mac_relabel_pipe(struct ucred *cred, struct pipepair *pp,
123 struct label *newlabel)
126 MAC_PERFORM(relabel_pipe, cred, pp, pp->pp_label, newlabel);
130 mac_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp,
131 unsigned long cmd, void *data)
135 mtx_assert(&pp->pp_mtx, MA_OWNED);
137 MAC_CHECK(check_pipe_ioctl, cred, pp, pp->pp_label, cmd, data);
143 mac_check_pipe_poll(struct ucred *cred, struct pipepair *pp)
147 mtx_assert(&pp->pp_mtx, MA_OWNED);
149 MAC_CHECK(check_pipe_poll, cred, pp, pp->pp_label);
155 mac_check_pipe_read(struct ucred *cred, struct pipepair *pp)
159 mtx_assert(&pp->pp_mtx, MA_OWNED);
161 MAC_CHECK(check_pipe_read, cred, pp, pp->pp_label);
167 mac_check_pipe_relabel(struct ucred *cred, struct pipepair *pp,
168 struct label *newlabel)
172 mtx_assert(&pp->pp_mtx, MA_OWNED);
174 MAC_CHECK(check_pipe_relabel, cred, pp, pp->pp_label, newlabel);
180 mac_check_pipe_stat(struct ucred *cred, struct pipepair *pp)
184 mtx_assert(&pp->pp_mtx, MA_OWNED);
186 MAC_CHECK(check_pipe_stat, cred, pp, pp->pp_label);
192 mac_check_pipe_write(struct ucred *cred, struct pipepair *pp)
196 mtx_assert(&pp->pp_mtx, MA_OWNED);
198 MAC_CHECK(check_pipe_write, cred, pp, pp->pp_label);
204 mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
209 mtx_assert(&pp->pp_mtx, MA_OWNED);
211 error = mac_check_pipe_relabel(cred, pp, label);
215 mac_relabel_pipe(cred, pp, label);