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5778eabd PM |
1 | /* |
2 | * SELinux NetLabel Support | |
3 | * | |
4 | * This file provides the necessary glue to tie NetLabel into the SELinux | |
5 | * subsystem. | |
6 | * | |
7 | * Author: Paul Moore <paul.moore@hp.com> | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
948bf85c | 12 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2007, 2008 |
5778eabd PM |
13 | * |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
22 | * the GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
27 | * | |
28 | */ | |
29 | ||
30 | #include <linux/spinlock.h> | |
31 | #include <linux/rcupdate.h> | |
014ab19a PM |
32 | #include <linux/ip.h> |
33 | #include <linux/ipv6.h> | |
5778eabd PM |
34 | #include <net/sock.h> |
35 | #include <net/netlabel.h> | |
014ab19a PM |
36 | #include <net/ip.h> |
37 | #include <net/ipv6.h> | |
5778eabd PM |
38 | |
39 | #include "objsec.h" | |
40 | #include "security.h" | |
d4ee4231 | 41 | #include "netlabel.h" |
5778eabd | 42 | |
5dbe1eb0 PM |
43 | /** |
44 | * selinux_netlbl_sidlookup_cached - Cache a SID lookup | |
45 | * @skb: the packet | |
46 | * @secattr: the NetLabel security attributes | |
47 | * @sid: the SID | |
48 | * | |
49 | * Description: | |
50 | * Query the SELinux security server to lookup the correct SID for the given | |
51 | * security attributes. If the query is successful, cache the result to speed | |
52 | * up future lookups. Returns zero on success, negative values on failure. | |
53 | * | |
54 | */ | |
55 | static int selinux_netlbl_sidlookup_cached(struct sk_buff *skb, | |
56 | struct netlbl_lsm_secattr *secattr, | |
57 | u32 *sid) | |
58 | { | |
59 | int rc; | |
60 | ||
61 | rc = security_netlbl_secattr_to_sid(secattr, sid); | |
62 | if (rc == 0 && | |
63 | (secattr->flags & NETLBL_SECATTR_CACHEABLE) && | |
64 | (secattr->flags & NETLBL_SECATTR_CACHE)) | |
65 | netlbl_cache_add(skb, secattr); | |
66 | ||
67 | return rc; | |
68 | } | |
69 | ||
6c5b3fc0 PM |
70 | /** |
71 | * selinux_netlbl_sock_genattr - Generate the NetLabel socket secattr | |
72 | * @sk: the socket | |
73 | * | |
74 | * Description: | |
75 | * Generate the NetLabel security attributes for a socket, making full use of | |
76 | * the socket's attribute cache. Returns a pointer to the security attributes | |
77 | * on success, NULL on failure. | |
78 | * | |
79 | */ | |
80 | static struct netlbl_lsm_secattr *selinux_netlbl_sock_genattr(struct sock *sk) | |
81 | { | |
82 | int rc; | |
83 | struct sk_security_struct *sksec = sk->sk_security; | |
84 | struct netlbl_lsm_secattr *secattr; | |
85 | ||
86 | if (sksec->nlbl_secattr != NULL) | |
87 | return sksec->nlbl_secattr; | |
88 | ||
89 | secattr = netlbl_secattr_alloc(GFP_ATOMIC); | |
90 | if (secattr == NULL) | |
91 | return NULL; | |
92 | rc = security_netlbl_sid_to_secattr(sksec->sid, secattr); | |
93 | if (rc != 0) { | |
94 | netlbl_secattr_free(secattr); | |
95 | return NULL; | |
96 | } | |
97 | sksec->nlbl_secattr = secattr; | |
98 | ||
99 | return secattr; | |
100 | } | |
101 | ||
5778eabd | 102 | /** |
ba6ff9f2 PM |
103 | * selinux_netlbl_sock_setsid - Label a socket using the NetLabel mechanism |
104 | * @sk: the socket to label | |
5778eabd PM |
105 | * |
106 | * Description: | |
accc6093 PM |
107 | * Attempt to label a socket using the NetLabel mechanism. Returns zero values |
108 | * on success, negative values on failure. | |
5778eabd PM |
109 | * |
110 | */ | |
accc6093 | 111 | static int selinux_netlbl_sock_setsid(struct sock *sk) |
5778eabd PM |
112 | { |
113 | int rc; | |
ba6ff9f2 | 114 | struct sk_security_struct *sksec = sk->sk_security; |
6c5b3fc0 | 115 | struct netlbl_lsm_secattr *secattr; |
5778eabd | 116 | |
accc6093 PM |
117 | if (sksec->nlbl_state != NLBL_REQUIRE) |
118 | return 0; | |
119 | ||
6c5b3fc0 PM |
120 | secattr = selinux_netlbl_sock_genattr(sk); |
121 | if (secattr == NULL) | |
122 | return -ENOMEM; | |
123 | rc = netlbl_sock_setattr(sk, secattr); | |
948bf85c PM |
124 | switch (rc) { |
125 | case 0: | |
5778eabd | 126 | sksec->nlbl_state = NLBL_LABELED; |
948bf85c PM |
127 | break; |
128 | case -EDESTADDRREQ: | |
948bf85c PM |
129 | sksec->nlbl_state = NLBL_REQSKB; |
130 | rc = 0; | |
131 | break; | |
132 | } | |
5778eabd PM |
133 | |
134 | return rc; | |
135 | } | |
136 | ||
137 | /** | |
138 | * selinux_netlbl_cache_invalidate - Invalidate the NetLabel cache | |
139 | * | |
140 | * Description: | |
141 | * Invalidate the NetLabel security attribute mapping cache. | |
142 | * | |
143 | */ | |
144 | void selinux_netlbl_cache_invalidate(void) | |
145 | { | |
146 | netlbl_cache_invalidate(); | |
147 | } | |
148 | ||
dfaebe98 PM |
149 | /** |
150 | * selinux_netlbl_err - Handle a NetLabel packet error | |
151 | * @skb: the packet | |
152 | * @error: the error code | |
153 | * @gateway: true if host is acting as a gateway, false otherwise | |
154 | * | |
155 | * Description: | |
156 | * When a packet is dropped due to a call to avc_has_perm() pass the error | |
157 | * code to the NetLabel subsystem so any protocol specific processing can be | |
158 | * done. This is safe to call even if you are unsure if NetLabel labeling is | |
159 | * present on the packet, NetLabel is smart enough to only act when it should. | |
160 | * | |
161 | */ | |
162 | void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway) | |
163 | { | |
164 | netlbl_skbuff_err(skb, error, gateway); | |
165 | } | |
166 | ||
6c5b3fc0 PM |
167 | /** |
168 | * selinux_netlbl_sk_security_free - Free the NetLabel fields | |
169 | * @sssec: the sk_security_struct | |
170 | * | |
171 | * Description: | |
172 | * Free all of the memory in the NetLabel fields of a sk_security_struct. | |
173 | * | |
174 | */ | |
175 | void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec) | |
176 | { | |
177 | if (ssec->nlbl_secattr != NULL) | |
178 | netlbl_secattr_free(ssec->nlbl_secattr); | |
179 | } | |
180 | ||
5778eabd PM |
181 | /** |
182 | * selinux_netlbl_sk_security_reset - Reset the NetLabel fields | |
183 | * @ssec: the sk_security_struct | |
184 | * @family: the socket family | |
185 | * | |
186 | * Description: | |
187 | * Called when the NetLabel state of a sk_security_struct needs to be reset. | |
188 | * The caller is responsibile for all the NetLabel sk_security_struct locking. | |
189 | * | |
190 | */ | |
191 | void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec, | |
192 | int family) | |
193 | { | |
a6aaafee | 194 | if (family == PF_INET) |
5778eabd PM |
195 | ssec->nlbl_state = NLBL_REQUIRE; |
196 | else | |
197 | ssec->nlbl_state = NLBL_UNSET; | |
198 | } | |
199 | ||
5778eabd PM |
200 | /** |
201 | * selinux_netlbl_skbuff_getsid - Get the sid of a packet using NetLabel | |
202 | * @skb: the packet | |
75e22910 | 203 | * @family: protocol family |
220deb96 | 204 | * @type: NetLabel labeling protocol type |
5778eabd PM |
205 | * @sid: the SID |
206 | * | |
207 | * Description: | |
208 | * Call the NetLabel mechanism to get the security attributes of the given | |
209 | * packet and use those attributes to determine the correct context/SID to | |
210 | * assign to the packet. Returns zero on success, negative values on failure. | |
211 | * | |
212 | */ | |
75e22910 PM |
213 | int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, |
214 | u16 family, | |
220deb96 | 215 | u32 *type, |
75e22910 | 216 | u32 *sid) |
5778eabd PM |
217 | { |
218 | int rc; | |
219 | struct netlbl_lsm_secattr secattr; | |
220 | ||
23bcdc1a PM |
221 | if (!netlbl_enabled()) { |
222 | *sid = SECSID_NULL; | |
223 | return 0; | |
224 | } | |
225 | ||
5778eabd | 226 | netlbl_secattr_init(&secattr); |
75e22910 | 227 | rc = netlbl_skbuff_getattr(skb, family, &secattr); |
5dbe1eb0 PM |
228 | if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) |
229 | rc = selinux_netlbl_sidlookup_cached(skb, &secattr, sid); | |
230 | else | |
5778eabd | 231 | *sid = SECSID_NULL; |
220deb96 | 232 | *type = secattr.type; |
5778eabd PM |
233 | netlbl_secattr_destroy(&secattr); |
234 | ||
235 | return rc; | |
236 | } | |
237 | ||
948bf85c PM |
238 | /** |
239 | * selinux_netlbl_skbuff_setsid - Set the NetLabel on a packet given a sid | |
240 | * @skb: the packet | |
241 | * @family: protocol family | |
242 | * @sid: the SID | |
243 | * | |
244 | * Description | |
245 | * Call the NetLabel mechanism to set the label of a packet using @sid. | |
246 | * Returns zero on auccess, negative values on failure. | |
247 | * | |
248 | */ | |
249 | int selinux_netlbl_skbuff_setsid(struct sk_buff *skb, | |
250 | u16 family, | |
251 | u32 sid) | |
252 | { | |
253 | int rc; | |
6c5b3fc0 PM |
254 | struct netlbl_lsm_secattr secattr_storage; |
255 | struct netlbl_lsm_secattr *secattr = NULL; | |
948bf85c PM |
256 | struct sock *sk; |
257 | ||
258 | /* if this is a locally generated packet check to see if it is already | |
259 | * being labeled by it's parent socket, if it is just exit */ | |
260 | sk = skb->sk; | |
261 | if (sk != NULL) { | |
262 | struct sk_security_struct *sksec = sk->sk_security; | |
263 | if (sksec->nlbl_state != NLBL_REQSKB) | |
264 | return 0; | |
6c5b3fc0 PM |
265 | secattr = sksec->nlbl_secattr; |
266 | } | |
267 | if (secattr == NULL) { | |
268 | secattr = &secattr_storage; | |
269 | netlbl_secattr_init(secattr); | |
270 | rc = security_netlbl_sid_to_secattr(sid, secattr); | |
271 | if (rc != 0) | |
272 | goto skbuff_setsid_return; | |
948bf85c PM |
273 | } |
274 | ||
6c5b3fc0 | 275 | rc = netlbl_skbuff_setattr(skb, family, secattr); |
948bf85c PM |
276 | |
277 | skbuff_setsid_return: | |
6c5b3fc0 PM |
278 | if (secattr == &secattr_storage) |
279 | netlbl_secattr_destroy(secattr); | |
948bf85c PM |
280 | return rc; |
281 | } | |
282 | ||
5778eabd | 283 | /** |
014ab19a | 284 | * selinux_netlbl_inet_conn_established - Netlabel the newly accepted connection |
5778eabd | 285 | * @sk: the new connection |
5778eabd PM |
286 | * |
287 | * Description: | |
014ab19a PM |
288 | * A new connection has been established on @sk so make sure it is labeled |
289 | * correctly with the NetLabel susbsystem. | |
5778eabd PM |
290 | * |
291 | */ | |
014ab19a | 292 | void selinux_netlbl_inet_conn_established(struct sock *sk, u16 family) |
5778eabd | 293 | { |
014ab19a PM |
294 | int rc; |
295 | struct sk_security_struct *sksec = sk->sk_security; | |
6c5b3fc0 | 296 | struct netlbl_lsm_secattr *secattr; |
014ab19a PM |
297 | struct inet_sock *sk_inet = inet_sk(sk); |
298 | struct sockaddr_in addr; | |
299 | ||
300 | if (sksec->nlbl_state != NLBL_REQUIRE) | |
301 | return; | |
302 | ||
6c5b3fc0 PM |
303 | secattr = selinux_netlbl_sock_genattr(sk); |
304 | if (secattr == NULL) | |
305 | return; | |
014ab19a | 306 | |
6c5b3fc0 | 307 | rc = netlbl_sock_setattr(sk, secattr); |
014ab19a PM |
308 | switch (rc) { |
309 | case 0: | |
310 | sksec->nlbl_state = NLBL_LABELED; | |
311 | break; | |
312 | case -EDESTADDRREQ: | |
313 | /* no PF_INET6 support yet because we don't support any IPv6 | |
314 | * labeling protocols */ | |
315 | if (family != PF_INET) { | |
316 | sksec->nlbl_state = NLBL_UNSET; | |
6c5b3fc0 | 317 | return; |
014ab19a PM |
318 | } |
319 | ||
320 | addr.sin_family = family; | |
321 | addr.sin_addr.s_addr = sk_inet->daddr; | |
322 | if (netlbl_conn_setattr(sk, (struct sockaddr *)&addr, | |
6c5b3fc0 | 323 | secattr) != 0) { |
014ab19a PM |
324 | /* we failed to label the connected socket (could be |
325 | * for a variety of reasons, the actual "why" isn't | |
326 | * important here) so we have to go to our backup plan, | |
327 | * labeling the packets individually in the netfilter | |
328 | * local output hook. this is okay but we need to | |
329 | * adjust the MSS of the connection to take into | |
330 | * account any labeling overhead, since we don't know | |
331 | * the exact overhead at this point we'll use the worst | |
332 | * case value which is 40 bytes for IPv4 */ | |
333 | struct inet_connection_sock *sk_conn = inet_csk(sk); | |
334 | sk_conn->icsk_ext_hdr_len += 40 - | |
335 | (sk_inet->opt ? sk_inet->opt->optlen : 0); | |
336 | sk_conn->icsk_sync_mss(sk, sk_conn->icsk_pmtu_cookie); | |
337 | ||
338 | sksec->nlbl_state = NLBL_REQSKB; | |
339 | } else | |
340 | sksec->nlbl_state = NLBL_CONNLABELED; | |
341 | break; | |
342 | default: | |
343 | /* note that we are failing to label the socket which could be | |
344 | * a bad thing since it means traffic could leave the system | |
345 | * without the desired labeling, however, all is not lost as | |
346 | * we have a check in selinux_netlbl_inode_permission() to | |
347 | * pick up the pieces that we might drop here because we can't | |
348 | * return an error code */ | |
349 | break; | |
350 | } | |
5778eabd PM |
351 | } |
352 | ||
353 | /** | |
354 | * selinux_netlbl_socket_post_create - Label a socket using NetLabel | |
355 | * @sock: the socket to label | |
356 | * | |
357 | * Description: | |
358 | * Attempt to label a socket using the NetLabel mechanism using the given | |
359 | * SID. Returns zero values on success, negative values on failure. | |
360 | * | |
361 | */ | |
362 | int selinux_netlbl_socket_post_create(struct socket *sock) | |
363 | { | |
accc6093 | 364 | return selinux_netlbl_sock_setsid(sock->sk); |
5778eabd PM |
365 | } |
366 | ||
367 | /** | |
368 | * selinux_netlbl_inode_permission - Verify the socket is NetLabel labeled | |
369 | * @inode: the file descriptor's inode | |
370 | * @mask: the permission mask | |
371 | * | |
372 | * Description: | |
373 | * Looks at a file's inode and if it is marked as a socket protected by | |
374 | * NetLabel then verify that the socket has been labeled, if not try to label | |
375 | * the socket now with the inode's SID. Returns zero on success, negative | |
376 | * values on failure. | |
377 | * | |
378 | */ | |
379 | int selinux_netlbl_inode_permission(struct inode *inode, int mask) | |
380 | { | |
381 | int rc; | |
ba6ff9f2 | 382 | struct sock *sk; |
5778eabd | 383 | struct socket *sock; |
ba6ff9f2 | 384 | struct sk_security_struct *sksec; |
5778eabd PM |
385 | |
386 | if (!S_ISSOCK(inode->i_mode) || | |
387 | ((mask & (MAY_WRITE | MAY_APPEND)) == 0)) | |
388 | return 0; | |
389 | sock = SOCKET_I(inode); | |
ba6ff9f2 | 390 | sk = sock->sk; |
d7f59dc4 PM |
391 | if (sk == NULL) |
392 | return 0; | |
ba6ff9f2 | 393 | sksec = sk->sk_security; |
d7f59dc4 | 394 | if (sksec == NULL || sksec->nlbl_state != NLBL_REQUIRE) |
5778eabd | 395 | return 0; |
f74af6e8 | 396 | |
5778eabd | 397 | local_bh_disable(); |
ba6ff9f2 | 398 | bh_lock_sock_nested(sk); |
f74af6e8 | 399 | if (likely(sksec->nlbl_state == NLBL_REQUIRE)) |
accc6093 | 400 | rc = selinux_netlbl_sock_setsid(sk); |
f74af6e8 PM |
401 | else |
402 | rc = 0; | |
ba6ff9f2 | 403 | bh_unlock_sock(sk); |
5778eabd | 404 | local_bh_enable(); |
5778eabd PM |
405 | |
406 | return rc; | |
407 | } | |
408 | ||
409 | /** | |
410 | * selinux_netlbl_sock_rcv_skb - Do an inbound access check using NetLabel | |
411 | * @sksec: the sock's sk_security_struct | |
412 | * @skb: the packet | |
75e22910 | 413 | * @family: protocol family |
5778eabd PM |
414 | * @ad: the audit data |
415 | * | |
416 | * Description: | |
417 | * Fetch the NetLabel security attributes from @skb and perform an access check | |
418 | * against the receiving socket. Returns zero on success, negative values on | |
419 | * error. | |
420 | * | |
421 | */ | |
422 | int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec, | |
423 | struct sk_buff *skb, | |
75e22910 | 424 | u16 family, |
5778eabd PM |
425 | struct avc_audit_data *ad) |
426 | { | |
427 | int rc; | |
f36158c4 PM |
428 | u32 nlbl_sid; |
429 | u32 perm; | |
430 | struct netlbl_lsm_secattr secattr; | |
5778eabd | 431 | |
23bcdc1a PM |
432 | if (!netlbl_enabled()) |
433 | return 0; | |
434 | ||
f36158c4 | 435 | netlbl_secattr_init(&secattr); |
75e22910 | 436 | rc = netlbl_skbuff_getattr(skb, family, &secattr); |
5dbe1eb0 PM |
437 | if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) |
438 | rc = selinux_netlbl_sidlookup_cached(skb, &secattr, &nlbl_sid); | |
439 | else | |
f36158c4 PM |
440 | nlbl_sid = SECINITSID_UNLABELED; |
441 | netlbl_secattr_destroy(&secattr); | |
5778eabd PM |
442 | if (rc != 0) |
443 | return rc; | |
8d9107e8 | 444 | |
5778eabd PM |
445 | switch (sksec->sclass) { |
446 | case SECCLASS_UDP_SOCKET: | |
f36158c4 | 447 | perm = UDP_SOCKET__RECVFROM; |
5778eabd PM |
448 | break; |
449 | case SECCLASS_TCP_SOCKET: | |
f36158c4 | 450 | perm = TCP_SOCKET__RECVFROM; |
5778eabd PM |
451 | break; |
452 | default: | |
f36158c4 | 453 | perm = RAWIP_SOCKET__RECVFROM; |
5778eabd PM |
454 | } |
455 | ||
f36158c4 | 456 | rc = avc_has_perm(sksec->sid, nlbl_sid, sksec->sclass, perm, ad); |
5778eabd PM |
457 | if (rc == 0) |
458 | return 0; | |
459 | ||
f36158c4 | 460 | if (nlbl_sid != SECINITSID_UNLABELED) |
dfaebe98 | 461 | netlbl_skbuff_err(skb, rc, 0); |
5778eabd PM |
462 | return rc; |
463 | } | |
464 | ||
465 | /** | |
466 | * selinux_netlbl_socket_setsockopt - Do not allow users to remove a NetLabel | |
467 | * @sock: the socket | |
468 | * @level: the socket level or protocol | |
469 | * @optname: the socket option name | |
470 | * | |
471 | * Description: | |
472 | * Check the setsockopt() call and if the user is trying to replace the IP | |
473 | * options on a socket and a NetLabel is in place for the socket deny the | |
474 | * access; otherwise allow the access. Returns zero when the access is | |
475 | * allowed, -EACCES when denied, and other negative values on error. | |
476 | * | |
477 | */ | |
478 | int selinux_netlbl_socket_setsockopt(struct socket *sock, | |
479 | int level, | |
480 | int optname) | |
481 | { | |
482 | int rc = 0; | |
ba6ff9f2 PM |
483 | struct sock *sk = sock->sk; |
484 | struct sk_security_struct *sksec = sk->sk_security; | |
5778eabd PM |
485 | struct netlbl_lsm_secattr secattr; |
486 | ||
5778eabd | 487 | if (level == IPPROTO_IP && optname == IP_OPTIONS && |
014ab19a PM |
488 | (sksec->nlbl_state == NLBL_LABELED || |
489 | sksec->nlbl_state == NLBL_CONNLABELED)) { | |
5778eabd | 490 | netlbl_secattr_init(&secattr); |
ba6ff9f2 PM |
491 | lock_sock(sk); |
492 | rc = netlbl_sock_getattr(sk, &secattr); | |
493 | release_sock(sk); | |
09c50b4a | 494 | if (rc == 0) |
5778eabd | 495 | rc = -EACCES; |
09c50b4a PM |
496 | else if (rc == -ENOMSG) |
497 | rc = 0; | |
5778eabd PM |
498 | netlbl_secattr_destroy(&secattr); |
499 | } | |
5778eabd PM |
500 | |
501 | return rc; | |
502 | } | |
014ab19a PM |
503 | |
504 | /** | |
505 | * selinux_netlbl_socket_connect - Label a client-side socket on connect | |
506 | * @sk: the socket to label | |
507 | * @addr: the destination address | |
508 | * | |
509 | * Description: | |
510 | * Attempt to label a connected socket with NetLabel using the given address. | |
511 | * Returns zero values on success, negative values on failure. | |
512 | * | |
513 | */ | |
514 | int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr) | |
515 | { | |
516 | int rc; | |
517 | struct sk_security_struct *sksec = sk->sk_security; | |
6c5b3fc0 | 518 | struct netlbl_lsm_secattr *secattr; |
014ab19a PM |
519 | |
520 | if (sksec->nlbl_state != NLBL_REQSKB && | |
521 | sksec->nlbl_state != NLBL_CONNLABELED) | |
522 | return 0; | |
523 | ||
014ab19a PM |
524 | local_bh_disable(); |
525 | bh_lock_sock_nested(sk); | |
526 | ||
527 | /* connected sockets are allowed to disconnect when the address family | |
528 | * is set to AF_UNSPEC, if that is what is happening we want to reset | |
529 | * the socket */ | |
530 | if (addr->sa_family == AF_UNSPEC) { | |
531 | netlbl_sock_delattr(sk); | |
532 | sksec->nlbl_state = NLBL_REQSKB; | |
533 | rc = 0; | |
534 | goto socket_connect_return; | |
535 | } | |
6c5b3fc0 PM |
536 | secattr = selinux_netlbl_sock_genattr(sk); |
537 | if (secattr == NULL) { | |
538 | rc = -ENOMEM; | |
014ab19a | 539 | goto socket_connect_return; |
6c5b3fc0 PM |
540 | } |
541 | rc = netlbl_conn_setattr(sk, addr, secattr); | |
542 | if (rc == 0) | |
543 | sksec->nlbl_state = NLBL_CONNLABELED; | |
014ab19a PM |
544 | |
545 | socket_connect_return: | |
546 | bh_unlock_sock(sk); | |
547 | local_bh_enable(); | |
014ab19a PM |
548 | return rc; |
549 | } |