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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
42f4e3c4 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
42f4e3c4 LP |
22 | #include <assert.h> |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
25 | #include <errno.h> | |
26 | #include <stdlib.h> | |
27 | #include <arpa/inet.h> | |
28 | #include <stdio.h> | |
542563ba | 29 | #include <net/if.h> |
b5a0699f LP |
30 | #include <sys/types.h> |
31 | #include <sys/stat.h> | |
0e098b15 LP |
32 | #include <stddef.h> |
33 | #include <sys/ioctl.h> | |
42f4e3c4 LP |
34 | |
35 | #include "macro.h" | |
36 | #include "util.h" | |
49e942b2 | 37 | #include "mkdir.h" |
9eb977db | 38 | #include "path-util.h" |
42f4e3c4 | 39 | #include "socket-util.h" |
16c42ce1 | 40 | #include "missing.h" |
a5c32cff | 41 | #include "fileio.h" |
42f4e3c4 | 42 | |
542563ba | 43 | int socket_address_parse(SocketAddress *a, const char *s) { |
42f4e3c4 LP |
44 | int r; |
45 | char *e, *n; | |
46 | unsigned u; | |
47 | ||
48 | assert(a); | |
49 | assert(s); | |
50 | ||
9152c765 | 51 | zero(*a); |
542563ba | 52 | a->type = SOCK_STREAM; |
42f4e3c4 LP |
53 | |
54 | if (*s == '[') { | |
55 | /* IPv6 in [x:.....:z]:p notation */ | |
56 | ||
5bfcc1c6 FF |
57 | if (!socket_ipv6_is_supported()) { |
58 | log_warning("Binding to IPv6 address not available since kernel does not support IPv6."); | |
59 | return -EAFNOSUPPORT; | |
60 | } | |
61 | ||
42f4e3c4 LP |
62 | if (!(e = strchr(s+1, ']'))) |
63 | return -EINVAL; | |
64 | ||
65 | if (!(n = strndup(s+1, e-s-1))) | |
66 | return -ENOMEM; | |
67 | ||
68 | errno = 0; | |
69 | if (inet_pton(AF_INET6, n, &a->sockaddr.in6.sin6_addr) <= 0) { | |
70 | free(n); | |
8333c77e | 71 | return errno > 0 ? -errno : -EINVAL; |
42f4e3c4 LP |
72 | } |
73 | ||
74 | free(n); | |
75 | ||
76 | e++; | |
77 | if (*e != ':') | |
78 | return -EINVAL; | |
79 | ||
80 | e++; | |
81 | if ((r = safe_atou(e, &u)) < 0) | |
82 | return r; | |
83 | ||
84 | if (u <= 0 || u > 0xFFFF) | |
85 | return -EINVAL; | |
86 | ||
87 | a->sockaddr.in6.sin6_family = AF_INET6; | |
88 | a->sockaddr.in6.sin6_port = htons((uint16_t) u); | |
89 | a->size = sizeof(struct sockaddr_in6); | |
42f4e3c4 LP |
90 | |
91 | } else if (*s == '/') { | |
92 | /* AF_UNIX socket */ | |
93 | ||
94 | size_t l; | |
95 | ||
96 | l = strlen(s); | |
97 | if (l >= sizeof(a->sockaddr.un.sun_path)) | |
98 | return -EINVAL; | |
99 | ||
100 | a->sockaddr.un.sun_family = AF_UNIX; | |
101 | memcpy(a->sockaddr.un.sun_path, s, l); | |
0e098b15 | 102 | a->size = offsetof(struct sockaddr_un, sun_path) + l + 1; |
42f4e3c4 | 103 | |
1c24e7bd | 104 | } else if (*s == '@') { |
42f4e3c4 LP |
105 | /* Abstract AF_UNIX socket */ |
106 | size_t l; | |
107 | ||
108 | l = strlen(s+1); | |
109 | if (l >= sizeof(a->sockaddr.un.sun_path) - 1) | |
110 | return -EINVAL; | |
111 | ||
112 | a->sockaddr.un.sun_family = AF_UNIX; | |
113 | memcpy(a->sockaddr.un.sun_path+1, s+1, l); | |
0e098b15 | 114 | a->size = offsetof(struct sockaddr_un, sun_path) + 1 + l; |
42f4e3c4 LP |
115 | |
116 | } else { | |
117 | ||
118 | if ((e = strchr(s, ':'))) { | |
542563ba LP |
119 | |
120 | if ((r = safe_atou(e+1, &u)) < 0) | |
121 | return r; | |
122 | ||
123 | if (u <= 0 || u > 0xFFFF) | |
124 | return -EINVAL; | |
42f4e3c4 | 125 | |
42f4e3c4 LP |
126 | if (!(n = strndup(s, e-s))) |
127 | return -ENOMEM; | |
128 | ||
542563ba LP |
129 | /* IPv4 in w.x.y.z:p notation? */ |
130 | if ((r = inet_pton(AF_INET, n, &a->sockaddr.in4.sin_addr)) < 0) { | |
42f4e3c4 | 131 | free(n); |
542563ba | 132 | return -errno; |
42f4e3c4 LP |
133 | } |
134 | ||
542563ba LP |
135 | if (r > 0) { |
136 | /* Gotcha, it's a traditional IPv4 address */ | |
137 | free(n); | |
42f4e3c4 | 138 | |
542563ba LP |
139 | a->sockaddr.in4.sin_family = AF_INET; |
140 | a->sockaddr.in4.sin_port = htons((uint16_t) u); | |
141 | a->size = sizeof(struct sockaddr_in); | |
142 | } else { | |
143 | unsigned idx; | |
42f4e3c4 | 144 | |
acbb0225 LP |
145 | if (strlen(n) > IF_NAMESIZE-1) { |
146 | free(n); | |
147 | return -EINVAL; | |
148 | } | |
149 | ||
542563ba LP |
150 | /* Uh, our last resort, an interface name */ |
151 | idx = if_nametoindex(n); | |
152 | free(n); | |
153 | ||
83c60c9f | 154 | if (idx == 0) |
542563ba | 155 | return -EINVAL; |
42f4e3c4 | 156 | |
5bfcc1c6 FF |
157 | if (!socket_ipv6_is_supported()) { |
158 | log_warning("Binding to interface is not available since kernel does not support IPv6."); | |
159 | return -EAFNOSUPPORT; | |
160 | } | |
161 | ||
542563ba LP |
162 | a->sockaddr.in6.sin6_family = AF_INET6; |
163 | a->sockaddr.in6.sin6_port = htons((uint16_t) u); | |
164 | a->sockaddr.in6.sin6_scope_id = idx; | |
83c60c9f | 165 | a->sockaddr.in6.sin6_addr = in6addr_any; |
542563ba LP |
166 | a->size = sizeof(struct sockaddr_in6); |
167 | } | |
42f4e3c4 LP |
168 | } else { |
169 | ||
170 | /* Just a port */ | |
5198dabc LP |
171 | r = safe_atou(s, &u); |
172 | if (r < 0) | |
42f4e3c4 LP |
173 | return r; |
174 | ||
175 | if (u <= 0 || u > 0xFFFF) | |
176 | return -EINVAL; | |
177 | ||
5bfcc1c6 FF |
178 | if (socket_ipv6_is_supported()) { |
179 | a->sockaddr.in6.sin6_family = AF_INET6; | |
180 | a->sockaddr.in6.sin6_port = htons((uint16_t) u); | |
181 | a->sockaddr.in6.sin6_addr = in6addr_any; | |
182 | a->size = sizeof(struct sockaddr_in6); | |
183 | } else { | |
184 | a->sockaddr.in4.sin_family = AF_INET; | |
185 | a->sockaddr.in4.sin_port = htons((uint16_t) u); | |
186 | a->sockaddr.in4.sin_addr.s_addr = INADDR_ANY; | |
187 | a->size = sizeof(struct sockaddr_in); | |
188 | } | |
42f4e3c4 LP |
189 | } |
190 | } | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
7a22745a LP |
195 | int socket_address_parse_netlink(SocketAddress *a, const char *s) { |
196 | int family; | |
197 | unsigned group = 0; | |
f8b69d1d | 198 | _cleanup_free_ char *sfamily = NULL; |
7a22745a LP |
199 | assert(a); |
200 | assert(s); | |
201 | ||
202 | zero(*a); | |
203 | a->type = SOCK_RAW; | |
204 | ||
205 | errno = 0; | |
206 | if (sscanf(s, "%ms %u", &sfamily, &group) < 1) | |
bcb161b0 | 207 | return errno > 0 ? -errno : -EINVAL; |
7a22745a | 208 | |
f8b69d1d MS |
209 | family = netlink_family_from_string(sfamily); |
210 | if (family < 0) | |
211 | return -EINVAL; | |
7a22745a LP |
212 | |
213 | a->sockaddr.nl.nl_family = AF_NETLINK; | |
214 | a->sockaddr.nl.nl_groups = group; | |
215 | ||
216 | a->type = SOCK_RAW; | |
217 | a->size = sizeof(struct sockaddr_nl); | |
218 | a->protocol = family; | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
542563ba | 223 | int socket_address_verify(const SocketAddress *a) { |
42f4e3c4 LP |
224 | assert(a); |
225 | ||
542563ba | 226 | switch (socket_address_family(a)) { |
42f4e3c4 | 227 | |
7a22745a LP |
228 | case AF_INET: |
229 | if (a->size != sizeof(struct sockaddr_in)) | |
230 | return -EINVAL; | |
42f4e3c4 | 231 | |
7a22745a LP |
232 | if (a->sockaddr.in4.sin_port == 0) |
233 | return -EINVAL; | |
42f4e3c4 | 234 | |
7a22745a LP |
235 | if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM) |
236 | return -EINVAL; | |
42f4e3c4 | 237 | |
7a22745a LP |
238 | return 0; |
239 | ||
240 | case AF_INET6: | |
241 | if (a->size != sizeof(struct sockaddr_in6)) | |
242 | return -EINVAL; | |
42f4e3c4 | 243 | |
7a22745a LP |
244 | if (a->sockaddr.in6.sin6_port == 0) |
245 | return -EINVAL; | |
42f4e3c4 | 246 | |
7a22745a LP |
247 | if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM) |
248 | return -EINVAL; | |
42f4e3c4 | 249 | |
7a22745a | 250 | return 0; |
42f4e3c4 | 251 | |
7a22745a LP |
252 | case AF_UNIX: |
253 | if (a->size < offsetof(struct sockaddr_un, sun_path)) | |
254 | return -EINVAL; | |
42f4e3c4 | 255 | |
7a22745a | 256 | if (a->size > offsetof(struct sockaddr_un, sun_path)) { |
42f4e3c4 | 257 | |
7a22745a LP |
258 | if (a->sockaddr.un.sun_path[0] != 0) { |
259 | char *e; | |
260 | ||
261 | /* path */ | |
262 | if (!(e = memchr(a->sockaddr.un.sun_path, 0, sizeof(a->sockaddr.un.sun_path)))) | |
263 | return -EINVAL; | |
264 | ||
265 | if (a->size != offsetof(struct sockaddr_un, sun_path) + (e - a->sockaddr.un.sun_path) + 1) | |
266 | return -EINVAL; | |
42f4e3c4 | 267 | } |
7a22745a | 268 | } |
42f4e3c4 | 269 | |
5a2b80ce | 270 | if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM && a->type != SOCK_SEQPACKET) |
7a22745a | 271 | return -EINVAL; |
42f4e3c4 | 272 | |
7a22745a LP |
273 | return 0; |
274 | ||
275 | case AF_NETLINK: | |
276 | ||
277 | if (a->size != sizeof(struct sockaddr_nl)) | |
278 | return -EINVAL; | |
279 | ||
280 | if (a->type != SOCK_RAW && a->type != SOCK_DGRAM) | |
281 | return -EINVAL; | |
282 | ||
283 | return 0; | |
284 | ||
285 | default: | |
286 | return -EAFNOSUPPORT; | |
42f4e3c4 LP |
287 | } |
288 | } | |
289 | ||
542563ba | 290 | int socket_address_print(const SocketAddress *a, char **p) { |
42f4e3c4 LP |
291 | int r; |
292 | assert(a); | |
293 | assert(p); | |
294 | ||
542563ba | 295 | if ((r = socket_address_verify(a)) < 0) |
42f4e3c4 LP |
296 | return r; |
297 | ||
542563ba | 298 | switch (socket_address_family(a)) { |
42f4e3c4 | 299 | |
7a22745a LP |
300 | case AF_INET: { |
301 | char *ret; | |
42f4e3c4 | 302 | |
7a22745a LP |
303 | if (!(ret = new(char, INET_ADDRSTRLEN+1+5+1))) |
304 | return -ENOMEM; | |
42f4e3c4 | 305 | |
7a22745a LP |
306 | if (!inet_ntop(AF_INET, &a->sockaddr.in4.sin_addr, ret, INET_ADDRSTRLEN)) { |
307 | free(ret); | |
308 | return -errno; | |
42f4e3c4 LP |
309 | } |
310 | ||
7a22745a LP |
311 | sprintf(strchr(ret, 0), ":%u", ntohs(a->sockaddr.in4.sin_port)); |
312 | *p = ret; | |
313 | return 0; | |
314 | } | |
42f4e3c4 | 315 | |
7a22745a LP |
316 | case AF_INET6: { |
317 | char *ret; | |
42f4e3c4 | 318 | |
7a22745a LP |
319 | if (!(ret = new(char, 1+INET6_ADDRSTRLEN+2+5+1))) |
320 | return -ENOMEM; | |
42f4e3c4 | 321 | |
7a22745a LP |
322 | ret[0] = '['; |
323 | if (!inet_ntop(AF_INET6, &a->sockaddr.in6.sin6_addr, ret+1, INET6_ADDRSTRLEN)) { | |
324 | free(ret); | |
325 | return -errno; | |
42f4e3c4 LP |
326 | } |
327 | ||
7a22745a LP |
328 | sprintf(strchr(ret, 0), "]:%u", ntohs(a->sockaddr.in6.sin6_port)); |
329 | *p = ret; | |
330 | return 0; | |
331 | } | |
42f4e3c4 | 332 | |
7a22745a LP |
333 | case AF_UNIX: { |
334 | char *ret; | |
42f4e3c4 | 335 | |
7a22745a | 336 | if (a->size <= offsetof(struct sockaddr_un, sun_path)) { |
42f4e3c4 | 337 | |
7a22745a LP |
338 | if (!(ret = strdup("<unnamed>"))) |
339 | return -ENOMEM; | |
42f4e3c4 | 340 | |
7a22745a LP |
341 | } else if (a->sockaddr.un.sun_path[0] == 0) { |
342 | /* abstract */ | |
42f4e3c4 | 343 | |
7a22745a LP |
344 | /* FIXME: We assume we can print the |
345 | * socket path here and that it hasn't | |
346 | * more than one NUL byte. That is | |
347 | * actually an invalid assumption */ | |
42f4e3c4 | 348 | |
7a22745a LP |
349 | if (!(ret = new(char, sizeof(a->sockaddr.un.sun_path)+1))) |
350 | return -ENOMEM; | |
42f4e3c4 | 351 | |
7a22745a LP |
352 | ret[0] = '@'; |
353 | memcpy(ret+1, a->sockaddr.un.sun_path+1, sizeof(a->sockaddr.un.sun_path)-1); | |
354 | ret[sizeof(a->sockaddr.un.sun_path)] = 0; | |
42f4e3c4 | 355 | |
7a22745a | 356 | } else { |
42f4e3c4 | 357 | |
7a22745a LP |
358 | if (!(ret = strdup(a->sockaddr.un.sun_path))) |
359 | return -ENOMEM; | |
42f4e3c4 LP |
360 | } |
361 | ||
7a22745a LP |
362 | *p = ret; |
363 | return 0; | |
364 | } | |
365 | ||
366 | case AF_NETLINK: { | |
7fd1b19b | 367 | _cleanup_free_ char *sfamily = NULL; |
7a22745a | 368 | |
f8b69d1d | 369 | r = netlink_family_to_string_alloc(a->protocol, &sfamily); |
7a22745a | 370 | if (r < 0) |
f8b69d1d MS |
371 | return r; |
372 | r = asprintf(p, "%s %u", sfamily, a->sockaddr.nl.nl_groups); | |
8520cfa5 MS |
373 | if (r < 0) |
374 | return -ENOMEM; | |
7a22745a LP |
375 | |
376 | return 0; | |
377 | } | |
378 | ||
379 | default: | |
380 | return -EINVAL; | |
42f4e3c4 LP |
381 | } |
382 | } | |
383 | ||
4f2d528d LP |
384 | bool socket_address_can_accept(const SocketAddress *a) { |
385 | assert(a); | |
386 | ||
387 | return | |
388 | a->type == SOCK_STREAM || | |
389 | a->type == SOCK_SEQPACKET; | |
390 | } | |
a16e1123 LP |
391 | |
392 | bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) { | |
393 | assert(a); | |
394 | assert(b); | |
395 | ||
396 | /* Invalid addresses are unequal to all */ | |
397 | if (socket_address_verify(a) < 0 || | |
398 | socket_address_verify(b) < 0) | |
399 | return false; | |
400 | ||
401 | if (a->type != b->type) | |
402 | return false; | |
403 | ||
404 | if (a->size != b->size) | |
405 | return false; | |
406 | ||
407 | if (socket_address_family(a) != socket_address_family(b)) | |
408 | return false; | |
409 | ||
410 | switch (socket_address_family(a)) { | |
411 | ||
412 | case AF_INET: | |
413 | if (a->sockaddr.in4.sin_addr.s_addr != b->sockaddr.in4.sin_addr.s_addr) | |
414 | return false; | |
415 | ||
416 | if (a->sockaddr.in4.sin_port != b->sockaddr.in4.sin_port) | |
417 | return false; | |
418 | ||
419 | break; | |
420 | ||
421 | case AF_INET6: | |
422 | if (memcmp(&a->sockaddr.in6.sin6_addr, &b->sockaddr.in6.sin6_addr, sizeof(a->sockaddr.in6.sin6_addr)) != 0) | |
423 | return false; | |
424 | ||
425 | if (a->sockaddr.in6.sin6_port != b->sockaddr.in6.sin6_port) | |
426 | return false; | |
427 | ||
428 | break; | |
429 | ||
430 | case AF_UNIX: | |
431 | ||
432 | if ((a->sockaddr.un.sun_path[0] == 0) != (b->sockaddr.un.sun_path[0] == 0)) | |
433 | return false; | |
434 | ||
435 | if (a->sockaddr.un.sun_path[0]) { | |
641906e9 | 436 | if (!strneq(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path))) |
a16e1123 LP |
437 | return false; |
438 | } else { | |
b12c1e7c | 439 | if (memcmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, a->size) != 0) |
a16e1123 LP |
440 | return false; |
441 | } | |
442 | ||
443 | break; | |
444 | ||
7a22745a LP |
445 | case AF_NETLINK: |
446 | ||
447 | if (a->protocol != b->protocol) | |
448 | return false; | |
449 | ||
450 | if (a->sockaddr.nl.nl_groups != b->sockaddr.nl.nl_groups) | |
451 | return false; | |
452 | ||
453 | break; | |
454 | ||
a16e1123 LP |
455 | default: |
456 | /* Cannot compare, so we assume the addresses are different */ | |
457 | return false; | |
458 | } | |
459 | ||
460 | return true; | |
461 | } | |
462 | ||
27ca8d7a | 463 | bool socket_address_is(const SocketAddress *a, const char *s, int type) { |
a16e1123 LP |
464 | struct SocketAddress b; |
465 | ||
466 | assert(a); | |
467 | assert(s); | |
468 | ||
469 | if (socket_address_parse(&b, s) < 0) | |
470 | return false; | |
471 | ||
27ca8d7a LP |
472 | b.type = type; |
473 | ||
a16e1123 | 474 | return socket_address_equal(a, &b); |
6e2ef85b LP |
475 | } |
476 | ||
7a22745a LP |
477 | bool socket_address_is_netlink(const SocketAddress *a, const char *s) { |
478 | struct SocketAddress b; | |
479 | ||
480 | assert(a); | |
481 | assert(s); | |
482 | ||
483 | if (socket_address_parse_netlink(&b, s) < 0) | |
484 | return false; | |
485 | ||
486 | return socket_address_equal(a, &b); | |
487 | } | |
488 | ||
a57f7e2c | 489 | const char* socket_address_get_path(const SocketAddress *a) { |
6e2ef85b LP |
490 | assert(a); |
491 | ||
492 | if (socket_address_family(a) != AF_UNIX) | |
a57f7e2c | 493 | return NULL; |
6e2ef85b LP |
494 | |
495 | if (a->sockaddr.un.sun_path[0] == 0) | |
a57f7e2c | 496 | return NULL; |
a16e1123 | 497 | |
a57f7e2c | 498 | return a->sockaddr.un.sun_path; |
a16e1123 | 499 | } |
c0120d99 | 500 | |
5bfcc1c6 | 501 | bool socket_ipv6_is_supported(void) { |
f89f1e8f AB |
502 | char *l = 0; |
503 | bool enabled; | |
504 | ||
505 | if (access("/sys/module/ipv6", F_OK) != 0) | |
506 | return 0; | |
507 | ||
508 | /* If we can't check "disable" parameter, assume enabled */ | |
509 | if (read_one_line_file("/sys/module/ipv6/parameters/disable", &l) < 0) | |
510 | return 1; | |
511 | ||
512 | /* If module was loaded with disable=1 no IPv6 available */ | |
513 | enabled = l[0] == '0'; | |
514 | free(l); | |
515 | ||
516 | return enabled; | |
5bfcc1c6 FF |
517 | } |
518 | ||
01e10de3 LP |
519 | bool socket_address_matches_fd(const SocketAddress *a, int fd) { |
520 | union sockaddr_union sa; | |
521 | socklen_t salen = sizeof(sa), solen; | |
522 | int protocol, type; | |
523 | ||
524 | assert(a); | |
525 | assert(fd >= 0); | |
526 | ||
527 | if (getsockname(fd, &sa.sa, &salen) < 0) | |
528 | return false; | |
529 | ||
530 | if (sa.sa.sa_family != a->sockaddr.sa.sa_family) | |
531 | return false; | |
532 | ||
533 | solen = sizeof(type); | |
534 | if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &type, &solen) < 0) | |
535 | return false; | |
536 | ||
537 | if (type != a->type) | |
538 | return false; | |
539 | ||
540 | if (a->protocol != 0) { | |
541 | solen = sizeof(protocol); | |
542 | if (getsockopt(fd, SOL_SOCKET, SO_PROTOCOL, &protocol, &solen) < 0) | |
543 | return false; | |
544 | ||
545 | if (protocol != a->protocol) | |
546 | return false; | |
547 | } | |
548 | ||
549 | switch (sa.sa.sa_family) { | |
550 | ||
551 | case AF_INET: | |
552 | return sa.in4.sin_port == a->sockaddr.in4.sin_port && | |
553 | sa.in4.sin_addr.s_addr == a->sockaddr.in4.sin_addr.s_addr; | |
554 | ||
555 | case AF_INET6: | |
556 | return sa.in6.sin6_port == a->sockaddr.in6.sin6_port && | |
557 | memcmp(&sa.in6.sin6_addr, &a->sockaddr.in6.sin6_addr, sizeof(struct in6_addr)) == 0; | |
558 | ||
559 | case AF_UNIX: | |
560 | return salen == a->size && | |
561 | memcmp(sa.un.sun_path, a->sockaddr.un.sun_path, salen - offsetof(struct sockaddr_un, sun_path)) == 0; | |
562 | ||
563 | } | |
564 | ||
565 | return false; | |
566 | } | |
567 | ||
2ca0435b ZJS |
568 | int make_socket_fd(const char* address, int flags) { |
569 | SocketAddress a; | |
570 | int fd, r; | |
7fd1b19b | 571 | _cleanup_free_ char *p = NULL; |
2ca0435b ZJS |
572 | |
573 | r = socket_address_parse(&a, address); | |
574 | if (r < 0) { | |
575 | log_error("failed to parse socket: %s", strerror(-r)); | |
576 | return r; | |
577 | } | |
578 | ||
579 | fd = socket(socket_address_family(&a), flags, 0); | |
580 | if (fd < 0) { | |
581 | log_error("socket(): %m"); | |
582 | return -errno; | |
583 | } | |
584 | ||
585 | r = socket_address_print(&a, &p); | |
586 | if (r < 0) { | |
587 | log_error("socket_address_print(): %s", strerror(-r)); | |
588 | return r; | |
589 | } | |
590 | log_info("Listening on %s", p); | |
591 | ||
592 | r = bind(fd, &a.sockaddr.sa, a.size); | |
593 | if (r < 0) { | |
594 | log_error("bind to %s: %m", address); | |
595 | return -errno; | |
596 | } | |
597 | ||
598 | r = listen(fd, SOMAXCONN); | |
599 | if (r < 0) { | |
600 | log_error("listen on %s: %m", address); | |
601 | return -errno; | |
602 | } | |
603 | ||
604 | return fd; | |
605 | } | |
606 | ||
7a22745a LP |
607 | static const char* const netlink_family_table[] = { |
608 | [NETLINK_ROUTE] = "route", | |
609 | [NETLINK_FIREWALL] = "firewall", | |
610 | [NETLINK_INET_DIAG] = "inet-diag", | |
611 | [NETLINK_NFLOG] = "nflog", | |
612 | [NETLINK_XFRM] = "xfrm", | |
613 | [NETLINK_SELINUX] = "selinux", | |
614 | [NETLINK_ISCSI] = "iscsi", | |
615 | [NETLINK_AUDIT] = "audit", | |
616 | [NETLINK_FIB_LOOKUP] = "fib-lookup", | |
617 | [NETLINK_CONNECTOR] = "connector", | |
618 | [NETLINK_NETFILTER] = "netfilter", | |
619 | [NETLINK_IP6_FW] = "ip6-fw", | |
620 | [NETLINK_DNRTMSG] = "dnrtmsg", | |
621 | [NETLINK_KOBJECT_UEVENT] = "kobject-uevent", | |
622 | [NETLINK_GENERIC] = "generic", | |
623 | [NETLINK_SCSITRANSPORT] = "scsitransport", | |
624 | [NETLINK_ECRYPTFS] = "ecryptfs" | |
625 | }; | |
626 | ||
f8b69d1d | 627 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(netlink_family, int, INT_MAX); |
7a22745a | 628 | |
c0120d99 LP |
629 | static const char* const socket_address_bind_ipv6_only_table[_SOCKET_ADDRESS_BIND_IPV6_ONLY_MAX] = { |
630 | [SOCKET_ADDRESS_DEFAULT] = "default", | |
631 | [SOCKET_ADDRESS_BOTH] = "both", | |
632 | [SOCKET_ADDRESS_IPV6_ONLY] = "ipv6-only" | |
633 | }; | |
634 | ||
635 | DEFINE_STRING_TABLE_LOOKUP(socket_address_bind_ipv6_only, SocketAddressBindIPv6Only); |