1/*-
2 * Copyright (c) 1999-2002 Robert N. M. Watson
3 * Copyright (c) 2001 Ilmar S. Habibulin
4 * Copyright (c) 2001-2004 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed by Robert Watson and Ilmar Habibulin for the
8 * TrustedBSD Project.

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30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/sys/security/mac/mac_inet.c 166531 2007-02-06 10:59:23Z rwatson $");
39
40#include "opt_mac.h"
41
42#include <sys/param.h>
43#include <sys/kernel.h>
44#include <sys/lock.h>
45#include <sys/malloc.h>
46#include <sys/mutex.h>

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158mac_create_inpcb_from_socket(struct socket *so, struct inpcb *inp)
159{
160
161 MAC_PERFORM(create_inpcb_from_socket, so, so->so_label, inp,
162 inp->inp_label);
163}
164
165void
166mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram)
167{
168 struct label *label;
169
170 label = mac_mbuf_to_label(datagram);
171
172 MAC_PERFORM(create_datagram_from_ipq, ipq, ipq->ipq_label,
173 datagram, label);
174}
175
176void
177mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment)
178{
179 struct label *datagramlabel, *fragmentlabel;
180
181 datagramlabel = mac_mbuf_to_label(datagram);
182 fragmentlabel = mac_mbuf_to_label(fragment);
183
184 MAC_PERFORM(create_fragment, datagram, datagramlabel, fragment,
185 fragmentlabel);
186}
187
188void
189mac_create_ipq(struct mbuf *fragment, struct ipq *ipq)
190{
191 struct label *label;
192
193 label = mac_mbuf_to_label(fragment);
194
195 MAC_PERFORM(create_ipq, fragment, label, ipq, ipq->ipq_label);
196}
197
198void
199mac_create_mbuf_from_inpcb(struct inpcb *inp, struct mbuf *m)
200{
201 struct label *mlabel;
202
203 INP_LOCK_ASSERT(inp);
204 mlabel = mac_mbuf_to_label(m);
205
206 MAC_PERFORM(create_mbuf_from_inpcb, inp, inp->inp_label, m, mlabel);
207}
208
209int
210mac_fragment_match(struct mbuf *fragment, struct ipq *ipq)
211{
212 struct label *label;
213 int result;
214
215 label = mac_mbuf_to_label(fragment);
216
217 result = 1;
218 MAC_BOOLEAN(fragment_match, &&, fragment, label, ipq,
219 ipq->ipq_label);
220
221 return (result);
222}
223
224void
225mac_reflect_mbuf_icmp(struct mbuf *m)
226{
227 struct label *label;
228
229 label = mac_mbuf_to_label(m);
230
231 MAC_PERFORM(reflect_mbuf_icmp, m, label);
232}
233void
234mac_reflect_mbuf_tcp(struct mbuf *m)
235{
236 struct label *label;
237
238 label = mac_mbuf_to_label(m);
239
240 MAC_PERFORM(reflect_mbuf_tcp, m, label);
241}
242
243void
244mac_update_ipq(struct mbuf *fragment, struct ipq *ipq)
245{
246 struct label *label;
247
248 label = mac_mbuf_to_label(fragment);
249
250 MAC_PERFORM(update_ipq, fragment, label, ipq, ipq->ipq_label);
251}
252
253int
254mac_check_inpcb_deliver(struct inpcb *inp, struct mbuf *m)
255{
256 struct label *label;
257 int error;
258

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326
327 INP_LOCK_ASSERT(inp);
328 MAC_PERFORM(init_syncache_from_inpcb, label, inp);
329}
330
331void
332mac_create_mbuf_from_syncache(struct label *sc_label, struct mbuf *m)
333{
334 struct label *mbuf_label;
335
336 M_ASSERTPKTHDR(m);
337 mbuf_label = mac_mbuf_to_label(m);
338 MAC_PERFORM(create_mbuf_from_syncache, sc_label, m, mbuf_label);
339}