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Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
cad45ba1 | 2 | |
66b6d9d5 | 3 | #include <errno.h> |
ca78ad1d | 4 | #include <fcntl.h> |
66b6d9d5 | 5 | #include <malloc.h> |
11c3a366 TA |
6 | #include <stddef.h> |
7 | #include <string.h> | |
8 | #include <sys/stat.h> | |
9 | #include <sys/time.h> | |
ca78ad1d | 10 | #include <sys/types.h> |
66b6d9d5 | 11 | #include <sys/un.h> |
11c3a366 | 12 | #include <syslog.h> |
a07e9cfb | 13 | |
349cc4a5 | 14 | #if HAVE_SELINUX |
61f3e897 | 15 | #include <selinux/avc.h> |
66b6d9d5 | 16 | #include <selinux/context.h> |
cf0fbc49 TA |
17 | #include <selinux/label.h> |
18 | #include <selinux/selinux.h> | |
66b6d9d5 WC |
19 | #endif |
20 | ||
b5efdb8a | 21 | #include "alloc-util.h" |
2b2fec7d | 22 | #include "errno-util.h" |
08c84981 | 23 | #include "fd-util.h" |
11c3a366 TA |
24 | #include "log.h" |
25 | #include "macro.h" | |
93cc7779 TA |
26 | #include "path-util.h" |
27 | #include "selinux-util.h" | |
08c84981 | 28 | #include "stdio-util.h" |
11c3a366 | 29 | #include "time-util.h" |
cad45ba1 | 30 | |
349cc4a5 | 31 | #if HAVE_SELINUX |
66b6d9d5 | 32 | DEFINE_TRIVIAL_CLEANUP_FUNC(context_t, context_free); |
66b6d9d5 | 33 | #define _cleanup_context_free_ _cleanup_(context_freep) |
0b6018f3 | 34 | |
61f3e897 CG |
35 | static int mac_selinux_reload(int seqno); |
36 | ||
6baa7db0 | 37 | static int cached_use = -1; |
66b6d9d5 | 38 | static struct selabel_handle *label_hnd = NULL; |
66cedb30 | 39 | |
3cd44590 LP |
40 | #define log_enforcing(...) \ |
41 | log_full(security_getenforce() != 0 ? LOG_ERR : LOG_WARNING, __VA_ARGS__) | |
65804d6a LP |
42 | |
43 | #define log_enforcing_errno(error, ...) \ | |
44 | ({ \ | |
3cd44590 | 45 | bool _enforcing = security_getenforce() != 0; \ |
65804d6a LP |
46 | int _level = _enforcing ? LOG_ERR : LOG_WARNING; \ |
47 | int _e = (error); \ | |
48 | \ | |
49 | int _r = (log_get_max_level() >= LOG_PRI(_level)) \ | |
50 | ? log_internal_realm(_level, _e, PROJECT_FILE, __LINE__, __func__, __VA_ARGS__) \ | |
51 | : -ERRNO_VALUE(_e); \ | |
52 | _enforcing ? _r : 0; \ | |
53 | }) | |
66b6d9d5 | 54 | #endif |
cad45ba1 | 55 | |
6d395665 | 56 | bool mac_selinux_use(void) { |
349cc4a5 | 57 | #if HAVE_SELINUX |
2073bf3f | 58 | if (_unlikely_(cached_use < 0)) { |
6baa7db0 | 59 | cached_use = is_selinux_enabled() > 0; |
2073bf3f CG |
60 | log_debug("SELinux enabled state cached to: %s", cached_use ? "enabled" : "disabled"); |
61 | } | |
cad45ba1 | 62 | |
6baa7db0 | 63 | return cached_use; |
66b6d9d5 WC |
64 | #else |
65 | return false; | |
66 | #endif | |
cad45ba1 LP |
67 | } |
68 | ||
6baa7db0 | 69 | void mac_selinux_retest(void) { |
349cc4a5 | 70 | #if HAVE_SELINUX |
6baa7db0 | 71 | cached_use = -1; |
66b6d9d5 | 72 | #endif |
cad45ba1 | 73 | } |
0b6018f3 | 74 | |
c3dacc8b | 75 | int mac_selinux_init(void) { |
349cc4a5 | 76 | #if HAVE_SELINUX |
66b6d9d5 WC |
77 | usec_t before_timestamp, after_timestamp; |
78 | struct mallinfo before_mallinfo, after_mallinfo; | |
65804d6a LP |
79 | char timespan[FORMAT_TIMESPAN_MAX]; |
80 | int l; | |
66b6d9d5 | 81 | |
61f3e897 CG |
82 | selinux_set_callback(SELINUX_CB_POLICYLOAD, (union selinux_callback) mac_selinux_reload); |
83 | ||
c3dacc8b | 84 | if (label_hnd) |
66b6d9d5 WC |
85 | return 0; |
86 | ||
c3dacc8b | 87 | if (!mac_selinux_use()) |
66b6d9d5 WC |
88 | return 0; |
89 | ||
90 | before_mallinfo = mallinfo(); | |
91 | before_timestamp = now(CLOCK_MONOTONIC); | |
92 | ||
c3dacc8b | 93 | label_hnd = selabel_open(SELABEL_CTX_FILE, NULL, 0); |
65804d6a | 94 | if (!label_hnd) |
a9ba0e32 | 95 | return log_enforcing_errno(errno, "Failed to initialize SELinux labeling handle: %m"); |
66b6d9d5 | 96 | |
65804d6a LP |
97 | after_timestamp = now(CLOCK_MONOTONIC); |
98 | after_mallinfo = mallinfo(); | |
66b6d9d5 | 99 | |
65804d6a | 100 | l = after_mallinfo.uordblks > before_mallinfo.uordblks ? after_mallinfo.uordblks - before_mallinfo.uordblks : 0; |
66b6d9d5 | 101 | |
65804d6a LP |
102 | log_debug("Successfully loaded SELinux database in %s, size on heap is %iK.", |
103 | format_timespan(timespan, sizeof(timespan), after_timestamp - before_timestamp, 0), | |
104 | (l+1023)/1024); | |
66b6d9d5 | 105 | |
65804d6a LP |
106 | #endif |
107 | return 0; | |
d682b3a7 LP |
108 | } |
109 | ||
ecabcf8b LP |
110 | void mac_selinux_finish(void) { |
111 | ||
349cc4a5 | 112 | #if HAVE_SELINUX |
ecabcf8b LP |
113 | if (!label_hnd) |
114 | return; | |
115 | ||
116 | selabel_close(label_hnd); | |
f5ce2b49 | 117 | label_hnd = NULL; |
ecabcf8b LP |
118 | #endif |
119 | } | |
120 | ||
a9dfac21 | 121 | #if HAVE_SELINUX |
61f3e897 | 122 | static int mac_selinux_reload(int seqno) { |
a9dfac21 CG |
123 | struct selabel_handle *backup_label_hnd; |
124 | ||
125 | if (!label_hnd) | |
61f3e897 | 126 | return 0; |
a9dfac21 CG |
127 | |
128 | backup_label_hnd = TAKE_PTR(label_hnd); | |
129 | ||
130 | /* try to initialize new handle | |
131 | * on success close backup | |
132 | * on failure restore backup */ | |
133 | if (mac_selinux_init() == 0) | |
134 | selabel_close(backup_label_hnd); | |
135 | else | |
136 | label_hnd = backup_label_hnd; | |
61f3e897 CG |
137 | |
138 | return 0; | |
a9dfac21 | 139 | } |
61f3e897 | 140 | #endif |
a9dfac21 | 141 | |
c3151977 | 142 | int mac_selinux_fix_container(const char *path, const char *inside_path, LabelFixFlags flags) { |
66b6d9d5 | 143 | |
349cc4a5 | 144 | #if HAVE_SELINUX |
08c84981 LP |
145 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
146 | _cleanup_freecon_ char* fcon = NULL; | |
147 | _cleanup_close_ int fd = -1; | |
66b6d9d5 | 148 | struct stat st; |
ecabcf8b | 149 | int r; |
66b6d9d5 | 150 | |
5dfc5461 LP |
151 | assert(path); |
152 | ||
153 | /* if mac_selinux_init() wasn't called before we are a NOOP */ | |
66b6d9d5 WC |
154 | if (!label_hnd) |
155 | return 0; | |
156 | ||
08c84981 LP |
157 | /* Open the file as O_PATH, to pin it while we determine and adjust the label */ |
158 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
159 | if (fd < 0) { | |
160 | if ((flags & LABEL_IGNORE_ENOENT) && errno == ENOENT) | |
161 | return 0; | |
162 | ||
163 | return -errno; | |
164 | } | |
165 | ||
166 | if (fstat(fd, &st) < 0) | |
167 | return -errno; | |
5dfc5461 | 168 | |
61f3e897 CG |
169 | /* Check for policy reload so 'label_hnd' is kept up-to-date by callbacks */ |
170 | (void) avc_netlink_check_nb(); | |
171 | ||
c3151977 | 172 | if (selabel_lookup_raw(label_hnd, &fcon, inside_path, st.st_mode) < 0) { |
08c84981 | 173 | r = -errno; |
66b6d9d5 WC |
174 | |
175 | /* If there's no label to set, then exit without warning */ | |
08c84981 | 176 | if (r == -ENOENT) |
66b6d9d5 WC |
177 | return 0; |
178 | ||
08c84981 | 179 | goto fail; |
66b6d9d5 WC |
180 | } |
181 | ||
08c84981 LP |
182 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); |
183 | if (setfilecon_raw(procfs_path, fcon) < 0) { | |
184 | _cleanup_freecon_ char *oldcon = NULL; | |
185 | ||
186 | r = -errno; | |
187 | ||
188 | /* If the FS doesn't support labels, then exit without warning */ | |
189 | if (r == -EOPNOTSUPP) | |
66b6d9d5 WC |
190 | return 0; |
191 | ||
08c84981 LP |
192 | /* It the FS is read-only and we were told to ignore failures caused by that, suppress error */ |
193 | if (r == -EROFS && (flags & LABEL_IGNORE_EROFS)) | |
66b6d9d5 WC |
194 | return 0; |
195 | ||
08c84981 LP |
196 | /* If the old label is identical to the new one, suppress any kind of error */ |
197 | if (getfilecon_raw(procfs_path, &oldcon) >= 0 && streq(fcon, oldcon)) | |
198 | return 0; | |
199 | ||
200 | goto fail; | |
66b6d9d5 | 201 | } |
08c84981 LP |
202 | |
203 | return 0; | |
204 | ||
205 | fail: | |
65804d6a | 206 | return log_enforcing_errno(r, "Unable to fix SELinux security context of %s (%s): %m", path, inside_path); |
66b6d9d5 WC |
207 | #endif |
208 | ||
ecabcf8b | 209 | return 0; |
66b6d9d5 WC |
210 | } |
211 | ||
ecabcf8b | 212 | int mac_selinux_apply(const char *path, const char *label) { |
66b6d9d5 | 213 | |
349cc4a5 | 214 | #if HAVE_SELINUX |
ecabcf8b LP |
215 | if (!mac_selinux_use()) |
216 | return 0; | |
217 | ||
0f474365 LP |
218 | assert(path); |
219 | assert(label); | |
220 | ||
65804d6a LP |
221 | if (setfilecon(path, label) < 0) |
222 | return log_enforcing_errno(errno, "Failed to set SELinux security context %s on path %s: %m", label, path); | |
66b6d9d5 | 223 | #endif |
ecabcf8b | 224 | return 0; |
d682b3a7 LP |
225 | } |
226 | ||
cc56fafe | 227 | int mac_selinux_get_create_label_from_exe(const char *exe, char **label) { |
349cc4a5 | 228 | #if HAVE_SELINUX |
2ed96880 | 229 | _cleanup_freecon_ char *mycon = NULL, *fcon = NULL; |
66b6d9d5 | 230 | security_class_t sclass; |
65804d6a | 231 | int r; |
66b6d9d5 | 232 | |
7f416dae LP |
233 | assert(exe); |
234 | assert(label); | |
235 | ||
6d395665 | 236 | if (!mac_selinux_use()) |
7f416dae | 237 | return -EOPNOTSUPP; |
66b6d9d5 | 238 | |
24154879 | 239 | r = getcon_raw(&mycon); |
66b6d9d5 | 240 | if (r < 0) |
7f416dae | 241 | return -errno; |
66b6d9d5 | 242 | |
24154879 | 243 | r = getfilecon_raw(exe, &fcon); |
66b6d9d5 | 244 | if (r < 0) |
7f416dae | 245 | return -errno; |
66b6d9d5 WC |
246 | |
247 | sclass = string_to_security_class("process"); | |
fdb0405e CG |
248 | if (sclass == 0) |
249 | return -ENOSYS; | |
250 | ||
2ed96880 | 251 | r = security_compute_create_raw(mycon, fcon, sclass, label); |
7f416dae LP |
252 | if (r < 0) |
253 | return -errno; | |
66b6d9d5 | 254 | |
65804d6a LP |
255 | return 0; |
256 | #else | |
257 | return -EOPNOTSUPP; | |
258 | #endif | |
66b6d9d5 WC |
259 | } |
260 | ||
cc56fafe | 261 | int mac_selinux_get_our_label(char **label) { |
65804d6a LP |
262 | #if HAVE_SELINUX |
263 | int r; | |
66b6d9d5 | 264 | |
7f416dae LP |
265 | assert(label); |
266 | ||
6d395665 | 267 | if (!mac_selinux_use()) |
7f416dae | 268 | return -EOPNOTSUPP; |
66b6d9d5 | 269 | |
24154879 | 270 | r = getcon_raw(label); |
66b6d9d5 | 271 | if (r < 0) |
7f416dae | 272 | return -errno; |
66b6d9d5 | 273 | |
65804d6a LP |
274 | return 0; |
275 | #else | |
276 | return -EOPNOTSUPP; | |
277 | #endif | |
66b6d9d5 WC |
278 | } |
279 | ||
9008e1ac | 280 | int mac_selinux_get_child_mls_label(int socket_fd, const char *exe, const char *exec_label, char **label) { |
349cc4a5 | 281 | #if HAVE_SELINUX |
2ed96880 | 282 | _cleanup_freecon_ char *mycon = NULL, *peercon = NULL, *fcon = NULL; |
66b6d9d5 WC |
283 | _cleanup_context_free_ context_t pcon = NULL, bcon = NULL; |
284 | security_class_t sclass; | |
66b6d9d5 | 285 | const char *range = NULL; |
65804d6a | 286 | int r; |
66b6d9d5 WC |
287 | |
288 | assert(socket_fd >= 0); | |
289 | assert(exe); | |
290 | assert(label); | |
291 | ||
6d395665 | 292 | if (!mac_selinux_use()) |
7f416dae LP |
293 | return -EOPNOTSUPP; |
294 | ||
24154879 | 295 | r = getcon_raw(&mycon); |
7f416dae LP |
296 | if (r < 0) |
297 | return -errno; | |
66b6d9d5 | 298 | |
a1d2de07 | 299 | r = getpeercon_raw(socket_fd, &peercon); |
7f416dae LP |
300 | if (r < 0) |
301 | return -errno; | |
66b6d9d5 | 302 | |
9008e1ac | 303 | if (!exec_label) { |
66b6d9d5 WC |
304 | /* If there is no context set for next exec let's use context |
305 | of target executable */ | |
24154879 | 306 | r = getfilecon_raw(exe, &fcon); |
7f416dae LP |
307 | if (r < 0) |
308 | return -errno; | |
66b6d9d5 WC |
309 | } |
310 | ||
311 | bcon = context_new(mycon); | |
7f416dae LP |
312 | if (!bcon) |
313 | return -ENOMEM; | |
66b6d9d5 WC |
314 | |
315 | pcon = context_new(peercon); | |
7f416dae LP |
316 | if (!pcon) |
317 | return -ENOMEM; | |
66b6d9d5 WC |
318 | |
319 | range = context_range_get(pcon); | |
7f416dae LP |
320 | if (!range) |
321 | return -errno; | |
66b6d9d5 WC |
322 | |
323 | r = context_range_set(bcon, range); | |
7f416dae LP |
324 | if (r) |
325 | return -errno; | |
66b6d9d5 WC |
326 | |
327 | freecon(mycon); | |
328 | mycon = strdup(context_str(bcon)); | |
7f416dae LP |
329 | if (!mycon) |
330 | return -ENOMEM; | |
66b6d9d5 WC |
331 | |
332 | sclass = string_to_security_class("process"); | |
fdb0405e CG |
333 | if (sclass == 0) |
334 | return -ENOSYS; | |
335 | ||
2ed96880 | 336 | r = security_compute_create_raw(mycon, fcon, sclass, label); |
7f416dae LP |
337 | if (r < 0) |
338 | return -errno; | |
7f416dae | 339 | |
65804d6a LP |
340 | return 0; |
341 | #else | |
342 | return -EOPNOTSUPP; | |
343 | #endif | |
66b6d9d5 WC |
344 | } |
345 | ||
710a6b50 | 346 | char* mac_selinux_free(char *label) { |
ecabcf8b | 347 | |
349cc4a5 | 348 | #if HAVE_SELINUX |
2ed96880 | 349 | freecon(label); |
3d9fbea4 CG |
350 | #else |
351 | assert(!label); | |
ecabcf8b | 352 | #endif |
710a6b50 LP |
353 | |
354 | return NULL; | |
ecabcf8b LP |
355 | } |
356 | ||
349cc4a5 | 357 | #if HAVE_SELINUX |
7e531a52 | 358 | static int selinux_create_file_prepare_abspath(const char *abspath, mode_t mode) { |
2ed96880 | 359 | _cleanup_freecon_ char *filecon = NULL; |
0f474365 | 360 | int r; |
66b6d9d5 | 361 | |
7e531a52 FB |
362 | assert(abspath); |
363 | assert(path_is_absolute(abspath)); | |
c34255bd | 364 | |
61f3e897 CG |
365 | /* Check for policy reload so 'label_hnd' is kept up-to-date by callbacks */ |
366 | (void) avc_netlink_check_nb(); | |
367 | ||
7e531a52 | 368 | r = selabel_lookup_raw(label_hnd, &filecon, abspath, mode); |
0f474365 LP |
369 | if (r < 0) { |
370 | /* No context specified by the policy? Proceed without setting it. */ | |
371 | if (errno == ENOENT) | |
372 | return 0; | |
2d58aa46 | 373 | |
65804d6a | 374 | return log_enforcing_errno(errno, "Failed to determine SELinux security context for %s: %m", abspath); |
66b6d9d5 WC |
375 | } |
376 | ||
65804d6a LP |
377 | if (setfscreatecon_raw(filecon) < 0) |
378 | return log_enforcing_errno(errno, "Failed to set SELinux security context %s for %s: %m", filecon, abspath); | |
66b6d9d5 | 379 | |
0f474365 | 380 | return 0; |
66b6d9d5 | 381 | } |
7e531a52 FB |
382 | #endif |
383 | ||
384 | int mac_selinux_create_file_prepare_at(int dirfd, const char *path, mode_t mode) { | |
7e531a52 FB |
385 | #if HAVE_SELINUX |
386 | _cleanup_free_ char *abspath = NULL; | |
65804d6a LP |
387 | int r; |
388 | ||
7e531a52 FB |
389 | |
390 | assert(path); | |
391 | ||
392 | if (!label_hnd) | |
393 | return 0; | |
394 | ||
395 | if (!path_is_absolute(path)) { | |
396 | _cleanup_free_ char *p = NULL; | |
397 | ||
398 | if (dirfd == AT_FDCWD) | |
399 | r = safe_getcwd(&p); | |
400 | else | |
401 | r = fd_get_path(dirfd, &p); | |
402 | if (r < 0) | |
403 | return r; | |
404 | ||
62a85ee0 | 405 | path = abspath = path_join(p, path); |
30016f21 | 406 | if (!path) |
7e531a52 | 407 | return -ENOMEM; |
7e531a52 FB |
408 | } |
409 | ||
65804d6a LP |
410 | return selinux_create_file_prepare_abspath(path, mode); |
411 | #else | |
412 | return 0; | |
7e531a52 | 413 | #endif |
7e531a52 FB |
414 | } |
415 | ||
416 | int mac_selinux_create_file_prepare(const char *path, mode_t mode) { | |
7e531a52 | 417 | #if HAVE_SELINUX |
65804d6a LP |
418 | int r; |
419 | ||
7e531a52 FB |
420 | _cleanup_free_ char *abspath = NULL; |
421 | ||
422 | assert(path); | |
423 | ||
424 | if (!label_hnd) | |
425 | return 0; | |
426 | ||
427 | r = path_make_absolute_cwd(path, &abspath); | |
428 | if (r < 0) | |
429 | return r; | |
430 | ||
65804d6a LP |
431 | return selinux_create_file_prepare_abspath(abspath, mode); |
432 | #else | |
433 | return 0; | |
7e531a52 | 434 | #endif |
7e531a52 | 435 | } |
66b6d9d5 | 436 | |
ecabcf8b | 437 | void mac_selinux_create_file_clear(void) { |
66b6d9d5 | 438 | |
349cc4a5 | 439 | #if HAVE_SELINUX |
66b6d9d5 WC |
440 | PROTECT_ERRNO; |
441 | ||
6baa7db0 | 442 | if (!mac_selinux_use()) |
66b6d9d5 WC |
443 | return; |
444 | ||
a1d2de07 | 445 | setfscreatecon_raw(NULL); |
66b6d9d5 WC |
446 | #endif |
447 | } | |
448 | ||
ecabcf8b | 449 | int mac_selinux_create_socket_prepare(const char *label) { |
66b6d9d5 | 450 | |
349cc4a5 | 451 | #if HAVE_SELINUX |
ecabcf8b LP |
452 | assert(label); |
453 | ||
65804d6a LP |
454 | if (!mac_selinux_use()) |
455 | return 0; | |
ecabcf8b | 456 | |
65804d6a LP |
457 | if (setsockcreatecon(label) < 0) |
458 | return log_enforcing_errno(errno, "Failed to set SELinux security context %s for sockets: %m", label); | |
66b6d9d5 | 459 | #endif |
ecabcf8b LP |
460 | |
461 | return 0; | |
66b6d9d5 WC |
462 | } |
463 | ||
ecabcf8b | 464 | void mac_selinux_create_socket_clear(void) { |
66b6d9d5 | 465 | |
349cc4a5 | 466 | #if HAVE_SELINUX |
ecabcf8b LP |
467 | PROTECT_ERRNO; |
468 | ||
6baa7db0 | 469 | if (!mac_selinux_use()) |
66b6d9d5 WC |
470 | return; |
471 | ||
a1d2de07 | 472 | setsockcreatecon_raw(NULL); |
66b6d9d5 WC |
473 | #endif |
474 | } | |
475 | ||
cc56fafe | 476 | int mac_selinux_bind(int fd, const struct sockaddr *addr, socklen_t addrlen) { |
66b6d9d5 WC |
477 | |
478 | /* Binds a socket and label its file system object according to the SELinux policy */ | |
479 | ||
349cc4a5 | 480 | #if HAVE_SELINUX |
2ed96880 | 481 | _cleanup_freecon_ char *fcon = NULL; |
66b6d9d5 | 482 | const struct sockaddr_un *un; |
0f474365 | 483 | bool context_changed = false; |
66b6d9d5 WC |
484 | char *path; |
485 | int r; | |
486 | ||
487 | assert(fd >= 0); | |
488 | assert(addr); | |
489 | assert(addrlen >= sizeof(sa_family_t)); | |
490 | ||
ecabcf8b | 491 | if (!label_hnd) |
66b6d9d5 WC |
492 | goto skipped; |
493 | ||
494 | /* Filter out non-local sockets */ | |
495 | if (addr->sa_family != AF_UNIX) | |
496 | goto skipped; | |
497 | ||
498 | /* Filter out anonymous sockets */ | |
0f474365 | 499 | if (addrlen < offsetof(struct sockaddr_un, sun_path) + 1) |
66b6d9d5 WC |
500 | goto skipped; |
501 | ||
502 | /* Filter out abstract namespace sockets */ | |
503 | un = (const struct sockaddr_un*) addr; | |
504 | if (un->sun_path[0] == 0) | |
505 | goto skipped; | |
506 | ||
507 | path = strndupa(un->sun_path, addrlen - offsetof(struct sockaddr_un, sun_path)); | |
508 | ||
61f3e897 CG |
509 | /* Check for policy reload so 'label_hnd' is kept up-to-date by callbacks */ |
510 | (void) avc_netlink_check_nb(); | |
511 | ||
66b6d9d5 WC |
512 | if (path_is_absolute(path)) |
513 | r = selabel_lookup_raw(label_hnd, &fcon, path, S_IFSOCK); | |
514 | else { | |
0f474365 | 515 | _cleanup_free_ char *newpath = NULL; |
66b6d9d5 | 516 | |
0f474365 LP |
517 | r = path_make_absolute_cwd(path, &newpath); |
518 | if (r < 0) | |
519 | return r; | |
66b6d9d5 WC |
520 | |
521 | r = selabel_lookup_raw(label_hnd, &fcon, newpath, S_IFSOCK); | |
522 | } | |
523 | ||
0f474365 LP |
524 | if (r < 0) { |
525 | /* No context specified by the policy? Proceed without setting it */ | |
526 | if (errno == ENOENT) | |
527 | goto skipped; | |
66b6d9d5 | 528 | |
65804d6a LP |
529 | r = log_enforcing_errno(errno, "Failed to determine SELinux security context for %s: %m", path); |
530 | if (r < 0) | |
531 | return r; | |
0f474365 | 532 | } else { |
a1d2de07 | 533 | if (setfscreatecon_raw(fcon) < 0) { |
65804d6a LP |
534 | r = log_enforcing_errno(errno, "Failed to set SELinux security context %s for %s: %m", fcon, path); |
535 | if (r < 0) | |
536 | return r; | |
0f474365 LP |
537 | } else |
538 | context_changed = true; | |
66b6d9d5 WC |
539 | } |
540 | ||
0f474365 LP |
541 | r = bind(fd, addr, addrlen) < 0 ? -errno : 0; |
542 | ||
543 | if (context_changed) | |
65804d6a | 544 | (void) setfscreatecon_raw(NULL); |
66b6d9d5 | 545 | |
66b6d9d5 WC |
546 | return r; |
547 | ||
548 | skipped: | |
549 | #endif | |
0f474365 LP |
550 | if (bind(fd, addr, addrlen) < 0) |
551 | return -errno; | |
552 | ||
553 | return 0; | |
66b6d9d5 | 554 | } |