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Commit | Line | Data |
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8cc47ba2 | 1 | /* |
fd05b7dc | 2 | * dhcpcd - DHCP client daemon |
aae24feb | 3 | * Copyright (c) 2006-2013 Roy Marples <roy@marples.name> |
fd05b7dc RM |
4 | * All rights reserved |
5 | ||
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * | |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
25 | * SUCH DAMAGE. | |
26 | */ | |
27 | ||
0d0c5f66 | 28 | #include <sys/param.h> |
fd05b7dc RM |
29 | #include <sys/types.h> |
30 | ||
31 | #include <arpa/inet.h> | |
32 | ||
33 | #include <ctype.h> | |
34 | #include <errno.h> | |
35 | #include <getopt.h> | |
0d0c5f66 | 36 | #include <limits.h> |
fd05b7dc RM |
37 | #include <paths.h> |
38 | #include <stdio.h> | |
39 | #include <stdlib.h> | |
40 | #include <string.h> | |
765fbf7d | 41 | #include <syslog.h> |
fd05b7dc RM |
42 | #include <unistd.h> |
43 | #include <time.h> | |
44 | ||
fd05b7dc | 45 | #include "config.h" |
9f7780b0 | 46 | #include "common.h" |
d7555c12 RM |
47 | #include "dhcp.h" |
48 | #include "dhcp6.h" | |
fd05b7dc | 49 | #include "if-options.h" |
e88c525f | 50 | #include "ipv4.h" |
793c4286 | 51 | #include "platform.h" |
fd05b7dc | 52 | |
eebe9a18 RM |
53 | unsigned long long options = 0; |
54 | ||
4ca7460f RM |
55 | /* These options only make sense in the config file, so don't use any |
56 | valid short options for them */ | |
eebe9a18 RM |
57 | #define O_BASE MAX('z', 'Z') + 1 |
58 | #define O_ARPING O_BASE + 1 | |
59 | #define O_FALLBACK O_BASE + 2 | |
60 | #define O_DESTINATION O_BASE + 3 | |
61 | #define O_IPV6RS O_BASE + 4 | |
00ababe4 RM |
62 | #define O_NOIPV6RS O_BASE + 5 |
63 | #define O_IPV6RA_FORK O_BASE + 6 | |
eebe9a18 RM |
64 | #define O_IPV6RA_OWN O_BASE + 7 |
65 | #define O_IPV6RA_OWN_D O_BASE + 8 | |
7dab081f | 66 | #define O_NOALIAS O_BASE + 9 |
00ababe4 RM |
67 | #define O_IA_NA O_BASE + 10 |
68 | #define O_IA_TA O_BASE + 11 | |
69 | #define O_IA_PD O_BASE + 12 | |
4ca7460f | 70 | |
fd05b7dc | 71 | const struct option cf_options[] = { |
ba97e494 RM |
72 | {"background", no_argument, NULL, 'b'}, |
73 | {"script", required_argument, NULL, 'c'}, | |
74 | {"debug", no_argument, NULL, 'd'}, | |
6bfd88f1 | 75 | {"env", required_argument, NULL, 'e'}, |
ba97e494 | 76 | {"config", required_argument, NULL, 'f'}, |
6bfd88f1 | 77 | {"reconfigure", no_argument, NULL, 'g'}, |
ba97e494 RM |
78 | {"hostname", optional_argument, NULL, 'h'}, |
79 | {"vendorclassid", optional_argument, NULL, 'i'}, | |
80 | {"release", no_argument, NULL, 'k'}, | |
81 | {"leasetime", required_argument, NULL, 'l'}, | |
82 | {"metric", required_argument, NULL, 'm'}, | |
83 | {"rebind", no_argument, NULL, 'n'}, | |
84 | {"option", required_argument, NULL, 'o'}, | |
85 | {"persistent", no_argument, NULL, 'p'}, | |
86 | {"quiet", no_argument, NULL, 'q'}, | |
87 | {"request", optional_argument, NULL, 'r'}, | |
88 | {"inform", optional_argument, NULL, 's'}, | |
89 | {"timeout", required_argument, NULL, 't'}, | |
90 | {"userclass", required_argument, NULL, 'u'}, | |
91 | {"vendor", required_argument, NULL, 'v'}, | |
2a07a2af | 92 | {"waitip", no_argument, NULL, 'w'}, |
ba97e494 | 93 | {"exit", no_argument, NULL, 'x'}, |
d3088c74 | 94 | {"allowinterfaces", required_argument, NULL, 'z'}, |
a2a9a498 | 95 | {"reboot", required_argument, NULL, 'y'}, |
ba97e494 RM |
96 | {"noarp", no_argument, NULL, 'A'}, |
97 | {"nobackground", no_argument, NULL, 'B'}, | |
98 | {"nohook", required_argument, NULL, 'C'}, | |
99 | {"duid", no_argument, NULL, 'D'}, | |
100 | {"lastlease", no_argument, NULL, 'E'}, | |
101 | {"fqdn", optional_argument, NULL, 'F'}, | |
102 | {"nogateway", no_argument, NULL, 'G'}, | |
00ababe4 | 103 | {"xidhwaddr", no_argument, NULL, 'H'}, |
ba97e494 | 104 | {"clientid", optional_argument, NULL, 'I'}, |
900b3da4 | 105 | {"broadcast", no_argument, NULL, 'J'}, |
ba97e494 RM |
106 | {"nolink", no_argument, NULL, 'K'}, |
107 | {"noipv4ll", no_argument, NULL, 'L'}, | |
108 | {"nooption", optional_argument, NULL, 'O'}, | |
109 | {"require", required_argument, NULL, 'Q'}, | |
91a44b91 | 110 | {"static", required_argument, NULL, 'S'}, |
ba97e494 | 111 | {"test", no_argument, NULL, 'T'}, |
dc60cba4 | 112 | {"dumplease", no_argument, NULL, 'U'}, |
ba97e494 | 113 | {"variables", no_argument, NULL, 'V'}, |
bf80d526 | 114 | {"whitelist", required_argument, NULL, 'W'}, |
ba97e494 | 115 | {"blacklist", required_argument, NULL, 'X'}, |
d3088c74 | 116 | {"denyinterfaces", required_argument, NULL, 'Z'}, |
4ca7460f | 117 | {"arping", required_argument, NULL, O_ARPING}, |
41c60e02 | 118 | {"destination", required_argument, NULL, O_DESTINATION}, |
ff021b0b | 119 | {"fallback", required_argument, NULL, O_FALLBACK}, |
eebe9a18 | 120 | {"ipv6rs", no_argument, NULL, O_IPV6RS}, |
91cd7324 | 121 | {"noipv6rs", no_argument, NULL, O_NOIPV6RS}, |
eebe9a18 RM |
122 | {"ipv6ra_fork", no_argument, NULL, O_IPV6RA_FORK}, |
123 | {"ipv6ra_own", no_argument, NULL, O_IPV6RA_OWN}, | |
124 | {"ipv6ra_own_default", no_argument, NULL, O_IPV6RA_OWN_D}, | |
d7555c12 RM |
125 | {"ipv4only", no_argument, NULL, '4'}, |
126 | {"ipv6only", no_argument, NULL, '6'}, | |
7dab081f | 127 | {"noalias", no_argument, NULL, O_NOALIAS}, |
00ababe4 RM |
128 | {"ia_na", no_argument, NULL, O_IA_NA}, |
129 | {"ia_ta", no_argument, NULL, O_IA_TA}, | |
130 | {"ia_pd", no_argument, NULL, O_IA_PD}, | |
ba97e494 | 131 | {NULL, 0, NULL, '\0'} |
fd05b7dc RM |
132 | }; |
133 | ||
134 | static int | |
135 | atoint(const char *s) | |
136 | { | |
137 | char *t; | |
138 | long n; | |
139 | ||
140 | errno = 0; | |
141 | n = strtol(s, &t, 0); | |
142 | if ((errno != 0 && n == 0) || s == t || | |
143 | (errno == ERANGE && (n == LONG_MAX || n == LONG_MIN))) | |
144 | { | |
367f7b11 RM |
145 | if (errno == 0) |
146 | errno = EINVAL; | |
765fbf7d | 147 | syslog(LOG_ERR, "`%s' out of range", s); |
fd05b7dc RM |
148 | return -1; |
149 | } | |
150 | ||
151 | return (int)n; | |
152 | } | |
153 | ||
00ababe4 | 154 | static char * |
fd05b7dc RM |
155 | add_environ(struct if_options *ifo, const char *value, int uniq) |
156 | { | |
157 | char **newlist; | |
158 | char **lst = ifo->environ; | |
159 | size_t i = 0, l, lv; | |
fa245a4d | 160 | char *match = NULL, *p, *n; |
fd05b7dc | 161 | |
78369646 RM |
162 | match = strdup(value); |
163 | if (match == NULL) { | |
164 | syslog(LOG_ERR, "%s: %m", __func__); | |
165 | return NULL; | |
166 | } | |
fd05b7dc RM |
167 | p = strchr(match, '='); |
168 | if (p) | |
169 | *p++ = '\0'; | |
170 | l = strlen(match); | |
171 | ||
172 | while (lst && lst[i]) { | |
173 | if (match && strncmp(lst[i], match, l) == 0) { | |
174 | if (uniq) { | |
78369646 RM |
175 | n = strdup(value); |
176 | if (n == NULL) { | |
177 | syslog(LOG_ERR, "%s: %m", __func__); | |
178 | return NULL; | |
179 | } | |
fd05b7dc | 180 | free(lst[i]); |
78369646 | 181 | lst[i] = n; |
fd05b7dc RM |
182 | } else { |
183 | /* Append a space and the value to it */ | |
184 | l = strlen(lst[i]); | |
185 | lv = strlen(p); | |
fa245a4d RM |
186 | n = realloc(lst[i], l + lv + 2); |
187 | if (n == NULL) { | |
188 | syslog(LOG_ERR, "%s: %m", __func__); | |
189 | return NULL; | |
190 | } | |
191 | lst[i] = n; | |
fd05b7dc RM |
192 | lst[i][l] = ' '; |
193 | memcpy(lst[i] + l + 1, p, lv); | |
194 | lst[i][l + lv + 1] = '\0'; | |
195 | } | |
196 | free(match); | |
197 | return lst[i]; | |
198 | } | |
199 | i++; | |
200 | } | |
201 | ||
78369646 RM |
202 | n = strdup(value); |
203 | if (n == NULL) { | |
204 | syslog(LOG_ERR, "%s: %m", __func__); | |
205 | return NULL; | |
206 | } | |
fa245a4d RM |
207 | newlist = realloc(lst, sizeof(char *) * (i + 2)); |
208 | if (newlist == NULL) { | |
209 | syslog(LOG_ERR, "%s: %m", __func__); | |
210 | return NULL; | |
211 | } | |
78369646 | 212 | newlist[i] = n; |
fd05b7dc RM |
213 | newlist[i + 1] = NULL; |
214 | ifo->environ = newlist; | |
215 | free(match); | |
216 | return newlist[i]; | |
217 | } | |
218 | ||
219 | #define parse_string(buf, len, arg) parse_string_hwaddr(buf, len, arg, 0) | |
220 | static ssize_t | |
221 | parse_string_hwaddr(char *sbuf, ssize_t slen, const char *str, int clid) | |
222 | { | |
223 | ssize_t l; | |
224 | const char *p; | |
225 | int i, punt_last = 0; | |
226 | char c[4]; | |
227 | ||
228 | /* If surrounded by quotes then it's a string */ | |
229 | if (*str == '"') { | |
230 | str++; | |
231 | l = strlen(str); | |
232 | p = str + l - 1; | |
233 | if (*p == '"') | |
234 | punt_last = 1; | |
235 | } else { | |
236 | l = hwaddr_aton(NULL, str); | |
237 | if (l > 1) { | |
238 | if (l > slen) { | |
239 | errno = ENOBUFS; | |
240 | return -1; | |
241 | } | |
242 | hwaddr_aton((uint8_t *)sbuf, str); | |
243 | return l; | |
244 | } | |
245 | } | |
246 | ||
247 | /* Process escapes */ | |
248 | l = 0; | |
249 | /* If processing a string on the clientid, first byte should be | |
250 | * 0 to indicate a non hardware type */ | |
9c9ad2f1 | 251 | if (clid && *str) { |
fd05b7dc RM |
252 | *sbuf++ = 0; |
253 | l++; | |
254 | } | |
255 | c[3] = '\0'; | |
256 | while (*str) { | |
257 | if (++l > slen) { | |
258 | errno = ENOBUFS; | |
259 | return -1; | |
260 | } | |
261 | if (*str == '\\') { | |
262 | str++; | |
857576b4 | 263 | switch(*str) { |
fd05b7dc RM |
264 | case '\0': |
265 | break; | |
266 | case 'b': | |
267 | *sbuf++ = '\b'; | |
857576b4 | 268 | str++; |
fd05b7dc RM |
269 | break; |
270 | case 'n': | |
271 | *sbuf++ = '\n'; | |
857576b4 | 272 | str++; |
fd05b7dc RM |
273 | break; |
274 | case 'r': | |
275 | *sbuf++ = '\r'; | |
857576b4 | 276 | str++; |
fd05b7dc RM |
277 | break; |
278 | case 't': | |
279 | *sbuf++ = '\t'; | |
857576b4 | 280 | str++; |
fd05b7dc RM |
281 | break; |
282 | case 'x': | |
283 | /* Grab a hex code */ | |
284 | c[1] = '\0'; | |
285 | for (i = 0; i < 2; i++) { | |
286 | if (isxdigit((unsigned char)*str) == 0) | |
287 | break; | |
288 | c[i] = *str++; | |
289 | } | |
290 | if (c[1] != '\0') { | |
291 | c[2] = '\0'; | |
292 | *sbuf++ = strtol(c, NULL, 16); | |
293 | } else | |
294 | l--; | |
295 | break; | |
296 | case '0': | |
297 | /* Grab an octal code */ | |
298 | c[2] = '\0'; | |
299 | for (i = 0; i < 3; i++) { | |
300 | if (*str < '0' || *str > '7') | |
301 | break; | |
302 | c[i] = *str++; | |
303 | } | |
304 | if (c[2] != '\0') { | |
305 | i = strtol(c, NULL, 8); | |
306 | if (i > 255) | |
307 | i = 255; | |
308 | *sbuf ++= i; | |
309 | } else | |
310 | l--; | |
311 | break; | |
312 | default: | |
313 | *sbuf++ = *str++; | |
314 | } | |
315 | } else | |
316 | *sbuf++ = *str++; | |
317 | } | |
c35f63c8 | 318 | if (punt_last) { |
fd05b7dc | 319 | *--sbuf = '\0'; |
c35f63c8 RM |
320 | l--; |
321 | } | |
fd05b7dc RM |
322 | return l; |
323 | } | |
324 | ||
ba97e494 RM |
325 | static char ** |
326 | splitv(int *argc, char **argv, const char *arg) | |
327 | { | |
fa245a4d | 328 | char **n, **v = argv; |
78369646 | 329 | char *o = strdup(arg), *p, *t, *nt; |
ba97e494 | 330 | |
78369646 RM |
331 | if (o == NULL) { |
332 | syslog(LOG_ERR, "%s: %m", __func__); | |
333 | return v; | |
334 | } | |
ba97e494 RM |
335 | p = o; |
336 | while ((t = strsep(&p, ", "))) { | |
fa245a4d RM |
337 | nt = strdup(t); |
338 | if (nt == NULL) { | |
339 | syslog(LOG_ERR, "%s: %m", __func__); | |
340 | return NULL; | |
341 | } | |
ba97e494 | 342 | (*argc)++; |
fa245a4d RM |
343 | n = realloc(v, sizeof(char *) * ((*argc))); |
344 | if (n == NULL) { | |
345 | syslog(LOG_ERR, "%s: %m", __func__); | |
346 | return NULL; | |
347 | } | |
348 | v = n; | |
349 | v[(*argc) - 1] = nt; | |
ba97e494 RM |
350 | } |
351 | free(o); | |
00ababe4 | 352 | return v; |
ba97e494 RM |
353 | } |
354 | ||
91a44b91 RM |
355 | static int |
356 | parse_addr(struct in_addr *addr, struct in_addr *net, const char *arg) | |
357 | { | |
aae24feb | 358 | #ifdef INET |
91a44b91 RM |
359 | char *p; |
360 | int i; | |
361 | ||
2f7cb97c RM |
362 | if (arg == NULL || *arg == '\0') { |
363 | if (addr != NULL) | |
364 | addr->s_addr = 0; | |
365 | if (net != NULL) | |
366 | net->s_addr = 0; | |
91a44b91 | 367 | return 0; |
2f7cb97c | 368 | } |
91a44b91 RM |
369 | if ((p = strchr(arg, '/')) != NULL) { |
370 | *p++ = '\0'; | |
371 | if (net != NULL && | |
372 | (sscanf(p, "%d", &i) != 1 || | |
eab2229c | 373 | inet_cidrtoaddr(i, net) != 0)) |
91a44b91 RM |
374 | { |
375 | syslog(LOG_ERR, "`%s' is not a valid CIDR", p); | |
376 | return -1; | |
377 | } | |
00ababe4 | 378 | } |
2f7cb97c | 379 | |
91a44b91 RM |
380 | if (addr != NULL && inet_aton(arg, addr) == 0) { |
381 | syslog(LOG_ERR, "`%s' is not a valid IP address", arg); | |
382 | return -1; | |
383 | } | |
2f7cb97c | 384 | if (p != NULL) |
e095a6eb | 385 | *--p = '/'; |
2f7cb97c | 386 | else if (net != NULL) |
e88c525f | 387 | net->s_addr = ipv4_getnetmask(addr->s_addr); |
91a44b91 | 388 | return 0; |
aae24feb RM |
389 | #else |
390 | syslog(LOG_ERR, "No IPv4 support"); | |
391 | return -1; | |
392 | #endif | |
91a44b91 RM |
393 | } |
394 | ||
00ababe4 | 395 | static const char * |
d7555c12 RM |
396 | set_option_space(const char *arg, const struct dhcp_opt **d, |
397 | struct if_options *ifo, | |
398 | uint8_t *request[], uint8_t *require[], uint8_t *no[]) | |
399 | { | |
400 | ||
aae24feb | 401 | #ifdef INET6 |
d7555c12 RM |
402 | if (strncmp(arg, "dhcp6_", strlen("dhcp6_")) == 0) { |
403 | *d = dhcp6_opts; | |
404 | *request = ifo->requestmask6; | |
405 | *require = ifo->requiremask6; | |
406 | *no = ifo->nomask6; | |
407 | return arg + strlen("dhcp6_"); | |
408 | } | |
aae24feb RM |
409 | #endif |
410 | ||
411 | #ifdef INET | |
d7555c12 | 412 | *d = dhcp_opts; |
aae24feb RM |
413 | #else |
414 | *d = NULL; | |
415 | #endif | |
d7555c12 RM |
416 | *request = ifo->requestmask; |
417 | *require = ifo->requiremask; | |
418 | *no = ifo->nomask; | |
419 | return arg; | |
420 | } | |
421 | ||
fd05b7dc RM |
422 | static int |
423 | parse_option(struct if_options *ifo, int opt, const char *arg) | |
424 | { | |
425 | int i; | |
367f7b11 | 426 | long l; |
fa245a4d | 427 | char *p = NULL, *fp, *np, **nconf; |
fd05b7dc | 428 | ssize_t s; |
00ababe4 | 429 | size_t sl; |
e095a6eb | 430 | struct in_addr addr, addr2; |
fa245a4d | 431 | in_addr_t *naddr; |
91a44b91 | 432 | struct rt *rt; |
a2258eb3 | 433 | const struct dhcp_opt *d; |
d7555c12 | 434 | uint8_t *request, *require, *no; |
367f7b11 | 435 | uint32_t u32; |
00ababe4 RM |
436 | struct if_iaid *iaid; |
437 | uint8_t _iaid[4]; | |
5985c4e2 | 438 | struct if_sla *sla, *slap; |
fd05b7dc | 439 | |
00ababe4 | 440 | i = 0; |
fd05b7dc | 441 | switch(opt) { |
5e2062a4 | 442 | case 'f': /* FALLTHROUGH */ |
6bfd88f1 | 443 | case 'g': /* FALLTHROUGH */ |
da166178 RM |
444 | case 'n': /* FALLTHROUGH */ |
445 | case 'x': /* FALLTHROUGH */ | |
dc60cba4 RM |
446 | case 'T': /* FALLTHROUGH */ |
447 | case 'U': /* We need to handle non interface options */ | |
fd05b7dc | 448 | break; |
03c2c879 RM |
449 | case 'b': |
450 | ifo->options |= DHCPCD_BACKGROUND; | |
451 | break; | |
fd05b7dc RM |
452 | case 'c': |
453 | strlcpy(ifo->script, arg, sizeof(ifo->script)); | |
454 | break; | |
acb1cf88 RM |
455 | case 'd': |
456 | ifo->options |= DHCPCD_DEBUG; | |
457 | break; | |
6bfd88f1 RM |
458 | case 'e': |
459 | add_environ(ifo, arg, 1); | |
460 | break; | |
fd05b7dc | 461 | case 'h': |
ed913a59 | 462 | if (arg) { |
7cce80be | 463 | s = parse_string(ifo->hostname, |
eab2229c | 464 | HOSTNAME_MAX_LEN, arg); |
ed913a59 RM |
465 | if (s == -1) { |
466 | syslog(LOG_ERR, "hostname: %m"); | |
467 | return -1; | |
468 | } | |
469 | if (s != 0 && ifo->hostname[0] == '.') { | |
eab2229c RM |
470 | syslog(LOG_ERR, |
471 | "hostname cannot begin with ."); | |
ed913a59 RM |
472 | return -1; |
473 | } | |
474 | ifo->hostname[s] = '\0'; | |
fd05b7dc | 475 | } |
ed913a59 RM |
476 | if (ifo->hostname[0] == '\0') |
477 | ifo->options &= ~DHCPCD_HOSTNAME; | |
478 | else | |
479 | ifo->options |= DHCPCD_HOSTNAME; | |
fd05b7dc RM |
480 | break; |
481 | case 'i': | |
482 | if (arg) | |
483 | s = parse_string((char *)ifo->vendorclassid + 1, | |
eab2229c | 484 | VENDORCLASSID_MAX_LEN, arg); |
fd05b7dc RM |
485 | else |
486 | s = 0; | |
487 | if (s == -1) { | |
765fbf7d | 488 | syslog(LOG_ERR, "vendorclassid: %m"); |
fd05b7dc RM |
489 | return -1; |
490 | } | |
491 | *ifo->vendorclassid = (uint8_t)s; | |
492 | break; | |
2662d519 RM |
493 | case 'k': |
494 | ifo->options |= DHCPCD_RELEASE; | |
495 | break; | |
fd05b7dc RM |
496 | case 'l': |
497 | if (*arg == '-') { | |
765fbf7d | 498 | syslog(LOG_ERR, |
eab2229c | 499 | "leasetime must be a positive value"); |
fd05b7dc RM |
500 | return -1; |
501 | } | |
502 | errno = 0; | |
503 | ifo->leasetime = (uint32_t)strtol(arg, NULL, 0); | |
504 | if (errno == EINVAL || errno == ERANGE) { | |
765fbf7d | 505 | syslog(LOG_ERR, "`%s' out of range", arg); |
fd05b7dc RM |
506 | return -1; |
507 | } | |
508 | break; | |
509 | case 'm': | |
510 | ifo->metric = atoint(arg); | |
511 | if (ifo->metric < 0) { | |
765fbf7d | 512 | syslog(LOG_ERR, "metric must be a positive value"); |
fd05b7dc RM |
513 | return -1; |
514 | } | |
515 | break; | |
516 | case 'o': | |
d7555c12 RM |
517 | arg = set_option_space(arg, &d, ifo, &request, &require, &no); |
518 | if (make_option_mask(d, request, arg, 1) != 0) { | |
765fbf7d | 519 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
520 | return -1; |
521 | } | |
522 | break; | |
523 | case 'p': | |
524 | ifo->options |= DHCPCD_PERSISTENT; | |
525 | break; | |
03c2c879 RM |
526 | case 'q': |
527 | ifo->options |= DHCPCD_QUIET; | |
528 | break; | |
2f7cb97c | 529 | case 'r': |
2f7cb97c RM |
530 | if (parse_addr(&ifo->req_addr, NULL, arg) != 0) |
531 | return -1; | |
5b39d8f5 | 532 | ifo->options |= DHCPCD_REQUEST; |
2f7cb97c RM |
533 | ifo->req_mask.s_addr = 0; |
534 | break; | |
fd05b7dc | 535 | case 's': |
d7555c12 RM |
536 | if (ifo->options & DHCPCD_IPV6 && |
537 | !(ifo->options & DHCPCD_IPV4)) | |
538 | { | |
539 | ifo->options |= DHCPCD_INFORM; | |
540 | break; | |
541 | } | |
2f7cb97c RM |
542 | if (arg && *arg != '\0') { |
543 | if (parse_addr(&ifo->req_addr, &ifo->req_mask, | |
eab2229c | 544 | arg) != 0) |
91a44b91 | 545 | return -1; |
2f7cb97c RM |
546 | } else { |
547 | ifo->req_addr.s_addr = 0; | |
548 | ifo->req_mask.s_addr = 0; | |
fd05b7dc | 549 | } |
5b39d8f5 RM |
550 | ifo->options |= DHCPCD_INFORM | DHCPCD_PERSISTENT; |
551 | ifo->options &= ~(DHCPCD_ARP | DHCPCD_STATIC); | |
91a44b91 | 552 | break; |
fd05b7dc RM |
553 | case 't': |
554 | ifo->timeout = atoint(arg); | |
555 | if (ifo->timeout < 0) { | |
a2a9a498 | 556 | syslog(LOG_ERR, "timeout must be a positive value"); |
fd05b7dc RM |
557 | return -1; |
558 | } | |
559 | break; | |
560 | case 'u': | |
561 | s = USERCLASS_MAX_LEN - ifo->userclass[0] - 1; | |
eab2229c RM |
562 | s = parse_string((char *)ifo->userclass + |
563 | ifo->userclass[0] + 2, | |
564 | s, arg); | |
fd05b7dc | 565 | if (s == -1) { |
765fbf7d | 566 | syslog(LOG_ERR, "userclass: %m"); |
fd05b7dc RM |
567 | return -1; |
568 | } | |
569 | if (s != 0) { | |
570 | ifo->userclass[ifo->userclass[0] + 1] = s; | |
571 | ifo->userclass[0] += s + 1; | |
572 | } | |
573 | break; | |
574 | case 'v': | |
575 | p = strchr(arg, ','); | |
576 | if (!p || !p[1]) { | |
765fbf7d | 577 | syslog(LOG_ERR, "invalid vendor format"); |
fd05b7dc RM |
578 | return -1; |
579 | } | |
95d6dcfa RM |
580 | |
581 | /* If vendor starts with , then it is not encapsulated */ | |
582 | if (p == arg) { | |
583 | arg++; | |
584 | s = parse_string((char *)ifo->vendor + 1, | |
585 | VENDOR_MAX_LEN, arg); | |
586 | if (s == -1) { | |
587 | syslog(LOG_ERR, "vendor: %m"); | |
588 | return -1; | |
589 | } | |
590 | ifo->vendor[0] = (uint8_t)s; | |
591 | ifo->options |= DHCPCD_VENDORRAW; | |
592 | break; | |
593 | } | |
594 | ||
595 | /* Encapsulated vendor options */ | |
596 | if (ifo->options & DHCPCD_VENDORRAW) { | |
597 | ifo->options &= ~DHCPCD_VENDORRAW; | |
598 | ifo->vendor[0] = 0; | |
599 | } | |
600 | ||
fd05b7dc RM |
601 | *p = '\0'; |
602 | i = atoint(arg); | |
603 | arg = p + 1; | |
604 | if (i < 1 || i > 254) { | |
765fbf7d | 605 | syslog(LOG_ERR, "vendor option should be between" |
eab2229c | 606 | " 1 and 254 inclusive"); |
fd05b7dc RM |
607 | return -1; |
608 | } | |
609 | s = VENDOR_MAX_LEN - ifo->vendor[0] - 2; | |
610 | if (inet_aton(arg, &addr) == 1) { | |
611 | if (s < 6) { | |
612 | s = -1; | |
613 | errno = ENOBUFS; | |
614 | } else | |
615 | memcpy(ifo->vendor + ifo->vendor[0] + 3, | |
eab2229c | 616 | &addr.s_addr, sizeof(addr.s_addr)); |
fd05b7dc | 617 | } else { |
eab2229c RM |
618 | s = parse_string((char *)ifo->vendor + |
619 | ifo->vendor[0] + 3, s, arg); | |
fd05b7dc RM |
620 | } |
621 | if (s == -1) { | |
765fbf7d | 622 | syslog(LOG_ERR, "vendor: %m"); |
fd05b7dc RM |
623 | return -1; |
624 | } | |
625 | if (s != 0) { | |
626 | ifo->vendor[ifo->vendor[0] + 1] = i; | |
627 | ifo->vendor[ifo->vendor[0] + 2] = s; | |
628 | ifo->vendor[0] += s + 2; | |
629 | } | |
630 | break; | |
2a07a2af RM |
631 | case 'w': |
632 | ifo->options |= DHCPCD_WAITIP; | |
633 | break; | |
a2a9a498 RM |
634 | case 'y': |
635 | ifo->reboot = atoint(arg); | |
636 | if (ifo->reboot < 0) { | |
637 | syslog(LOG_ERR, "reboot must be a positive value"); | |
638 | return -1; | |
639 | } | |
640 | break; | |
d3088c74 | 641 | case 'z': |
378f8fa4 | 642 | ifav = splitv(&ifac, ifav, arg); |
d3088c74 | 643 | break; |
fd05b7dc RM |
644 | case 'A': |
645 | ifo->options &= ~DHCPCD_ARP; | |
646 | /* IPv4LL requires ARP */ | |
647 | ifo->options &= ~DHCPCD_IPV4LL; | |
648 | break; | |
03c2c879 RM |
649 | case 'B': |
650 | ifo->options &= ~DHCPCD_DAEMONISE; | |
651 | break; | |
fd05b7dc RM |
652 | case 'C': |
653 | /* Commas to spaces for shell */ | |
654 | while ((p = strchr(arg, ','))) | |
655 | *p = ' '; | |
656 | s = strlen("skip_hooks=") + strlen(arg) + 1; | |
28382337 RM |
657 | p = malloc(sizeof(char) * s); |
658 | if (p == NULL) { | |
659 | syslog(LOG_ERR, "%s: %m", __func__); | |
660 | return -1; | |
661 | } | |
fd05b7dc RM |
662 | snprintf(p, s, "skip_hooks=%s", arg); |
663 | add_environ(ifo, p, 0); | |
664 | free(p); | |
665 | break; | |
666 | case 'D': | |
c989b023 | 667 | ifo->options |= DHCPCD_CLIENTID | DHCPCD_DUID; |
fd05b7dc RM |
668 | break; |
669 | case 'E': | |
670 | ifo->options |= DHCPCD_LASTLEASE; | |
671 | break; | |
672 | case 'F': | |
673 | if (!arg) { | |
674 | ifo->fqdn = FQDN_BOTH; | |
675 | break; | |
676 | } | |
677 | if (strcmp(arg, "none") == 0) | |
678 | ifo->fqdn = FQDN_NONE; | |
679 | else if (strcmp(arg, "ptr") == 0) | |
680 | ifo->fqdn = FQDN_PTR; | |
681 | else if (strcmp(arg, "both") == 0) | |
682 | ifo->fqdn = FQDN_BOTH; | |
683 | else if (strcmp(arg, "disable") == 0) | |
684 | ifo->fqdn = FQDN_DISABLE; | |
685 | else { | |
765fbf7d | 686 | syslog(LOG_ERR, "invalid value `%s' for FQDN", arg); |
fd05b7dc RM |
687 | return -1; |
688 | } | |
689 | break; | |
690 | case 'G': | |
691 | ifo->options &= ~DHCPCD_GATEWAY; | |
692 | break; | |
4242c9b3 RM |
693 | case 'H': |
694 | ifo->options |= DHCPCD_XID_HWADDR; | |
695 | break; | |
fd05b7dc RM |
696 | case 'I': |
697 | /* Strings have a type of 0 */; | |
698 | ifo->clientid[1] = 0; | |
699 | if (arg) | |
700 | s = parse_string_hwaddr((char *)ifo->clientid + 1, | |
eab2229c | 701 | CLIENTID_MAX_LEN, arg, 1); |
fd05b7dc RM |
702 | else |
703 | s = 0; | |
704 | if (s == -1) { | |
765fbf7d | 705 | syslog(LOG_ERR, "clientid: %m"); |
fd05b7dc RM |
706 | return -1; |
707 | } | |
c989b023 | 708 | ifo->options |= DHCPCD_CLIENTID; |
fd05b7dc | 709 | ifo->clientid[0] = (uint8_t)s; |
fd05b7dc | 710 | break; |
900b3da4 RM |
711 | case 'J': |
712 | ifo->options |= DHCPCD_BROADCAST; | |
713 | break; | |
fd05b7dc RM |
714 | case 'K': |
715 | ifo->options &= ~DHCPCD_LINK; | |
716 | break; | |
717 | case 'L': | |
718 | ifo->options &= ~DHCPCD_IPV4LL; | |
719 | break; | |
720 | case 'O': | |
d7555c12 RM |
721 | arg = set_option_space(arg, &d, ifo, &request, &require, &no); |
722 | if (make_option_mask(d, request, arg, -1) != 0 || | |
723 | make_option_mask(d, require, arg, -1) != 0 || | |
724 | make_option_mask(d, no, arg, 1) != 0) | |
fd05b7dc | 725 | { |
765fbf7d | 726 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
727 | return -1; |
728 | } | |
729 | break; | |
730 | case 'Q': | |
d7555c12 RM |
731 | arg = set_option_space(arg, &d, ifo, &request, &require, &no); |
732 | if (make_option_mask(d, require, arg, 1) != 0 || | |
733 | make_option_mask(d, request, arg, 1) != 0) | |
fd05b7dc | 734 | { |
765fbf7d | 735 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
736 | return -1; |
737 | } | |
738 | break; | |
91a44b91 RM |
739 | case 'S': |
740 | p = strchr(arg, '='); | |
741 | if (p == NULL) { | |
742 | syslog(LOG_ERR, "static assignment required"); | |
743 | return -1; | |
744 | } | |
745 | p++; | |
746 | if (strncmp(arg, "ip_address=", strlen("ip_address=")) == 0) { | |
776961cf RM |
747 | if (parse_addr(&ifo->req_addr, |
748 | ifo->req_mask.s_addr == 0 ? &ifo->req_mask : NULL, | |
749 | p) != 0) | |
91a44b91 RM |
750 | return -1; |
751 | ||
752 | ifo->options |= DHCPCD_STATIC; | |
fa8b2a7a | 753 | ifo->options &= ~DHCPCD_INFORM; |
776961cf RM |
754 | } else if (strncmp(arg, "subnet_mask=", strlen("subnet_mask=")) == 0) { |
755 | if (parse_addr(&ifo->req_mask, NULL, p) != 0) | |
756 | return -1; | |
91a44b91 | 757 | } else if (strncmp(arg, "routes=", strlen("routes=")) == 0 || |
eab2229c RM |
758 | strncmp(arg, "static_routes=", strlen("static_routes=")) == 0 || |
759 | strncmp(arg, "classless_static_routes=", strlen("classless_static_routes=")) == 0 || | |
760 | strncmp(arg, "ms_classless_static_routes=", strlen("ms_classless_static_routes=")) == 0) | |
91a44b91 | 761 | { |
332a5fe6 | 762 | fp = np = strchr(p, ' '); |
91a44b91 RM |
763 | if (np == NULL) { |
764 | syslog(LOG_ERR, "all routes need a gateway"); | |
765 | return -1; | |
766 | } | |
767 | *np++ = '\0'; | |
768 | while (*np == ' ') | |
769 | np++; | |
770 | if (ifo->routes == NULL) { | |
4c9c4b3e RM |
771 | ifo->routes = malloc(sizeof(*ifo->routes)); |
772 | if (ifo->routes == NULL) { | |
10e17e3f | 773 | syslog(LOG_ERR, "%s: %m", __func__); |
10e17e3f RM |
774 | return -1; |
775 | } | |
673e81e5 | 776 | TAILQ_INIT(ifo->routes); |
4c9c4b3e RM |
777 | } |
778 | rt = malloc(sizeof(*rt)); | |
779 | if (rt == NULL) { | |
780 | syslog(LOG_ERR, "%s: %m", __func__); | |
781 | *fp = ' '; | |
782 | return -1; | |
91a44b91 | 783 | } |
91a44b91 RM |
784 | if (parse_addr(&rt->dest, &rt->net, p) == -1 || |
785 | parse_addr(&rt->gate, NULL, np) == -1) | |
332a5fe6 | 786 | { |
4c9c4b3e | 787 | free(rt); |
332a5fe6 | 788 | *fp = ' '; |
91a44b91 | 789 | return -1; |
332a5fe6 | 790 | } |
4c9c4b3e | 791 | TAILQ_INSERT_TAIL(ifo->routes, rt, next); |
332a5fe6 | 792 | *fp = ' '; |
91a44b91 RM |
793 | } else if (strncmp(arg, "routers=", strlen("routers=")) == 0) { |
794 | if (ifo->routes == NULL) { | |
4c9c4b3e RM |
795 | ifo->routes = malloc(sizeof(*ifo->routes)); |
796 | if (ifo->routes == NULL) { | |
10e17e3f RM |
797 | syslog(LOG_ERR, "%s: %m", __func__); |
798 | return -1; | |
799 | } | |
00ababe4 | 800 | TAILQ_INIT(ifo->routes); |
4c9c4b3e RM |
801 | } |
802 | rt = malloc(sizeof(*rt)); | |
803 | if (rt == NULL) { | |
804 | syslog(LOG_ERR, "%s: %m", __func__); | |
805 | return -1; | |
91a44b91 | 806 | } |
1abffd5b RM |
807 | rt->dest.s_addr = INADDR_ANY; |
808 | rt->net.s_addr = INADDR_ANY; | |
4c9c4b3e RM |
809 | if (parse_addr(&rt->gate, NULL, p) == -1) { |
810 | free(rt); | |
91a44b91 | 811 | return -1; |
4c9c4b3e RM |
812 | } |
813 | TAILQ_INSERT_TAIL(ifo->routes, rt, next); | |
91a44b91 RM |
814 | } else { |
815 | s = 0; | |
816 | if (ifo->config != NULL) { | |
817 | while (ifo->config[s] != NULL) { | |
eab2229c RM |
818 | if (strncmp(ifo->config[s], arg, |
819 | p - arg) == 0) | |
820 | { | |
78369646 RM |
821 | p = strdup(arg); |
822 | if (p == NULL) { | |
823 | syslog(LOG_ERR, | |
824 | "%s: %m", __func__); | |
825 | return -1; | |
826 | } | |
91a44b91 | 827 | free(ifo->config[s]); |
78369646 | 828 | ifo->config[s] = p; |
91a44b91 RM |
829 | return 1; |
830 | } | |
831 | s++; | |
832 | } | |
833 | } | |
78369646 | 834 | p = strdup(arg); |
fa245a4d RM |
835 | if (p == NULL) { |
836 | syslog(LOG_ERR, "%s: %m", __func__); | |
837 | return -1; | |
838 | } | |
78369646 RM |
839 | nconf = realloc(ifo->config, sizeof(char *) * (s + 2)); |
840 | if (nconf == NULL) { | |
841 | syslog(LOG_ERR, "%s: %m", __func__); | |
842 | return -1; | |
843 | } | |
fa245a4d | 844 | ifo->config = nconf; |
78369646 | 845 | ifo->config[s] = p; |
91a44b91 RM |
846 | ifo->config[s + 1] = NULL; |
847 | } | |
848 | break; | |
bf80d526 RM |
849 | case 'W': |
850 | if (parse_addr(&addr, &addr2, arg) != 0) | |
851 | return -1; | |
852 | if (strchr(arg, '/') == NULL) | |
853 | addr2.s_addr = INADDR_BROADCAST; | |
fa245a4d | 854 | naddr = realloc(ifo->whitelist, |
bf80d526 | 855 | sizeof(in_addr_t) * (ifo->whitelist_len + 2)); |
fa245a4d RM |
856 | if (naddr == NULL) { |
857 | syslog(LOG_ERR, "%s: %m", __func__); | |
858 | return -1; | |
859 | } | |
860 | ifo->whitelist = naddr; | |
bf80d526 RM |
861 | ifo->whitelist[ifo->whitelist_len++] = addr.s_addr; |
862 | ifo->whitelist[ifo->whitelist_len++] = addr2.s_addr; | |
863 | break; | |
fd05b7dc | 864 | case 'X': |
e095a6eb | 865 | if (parse_addr(&addr, &addr2, arg) != 0) |
fd05b7dc | 866 | return -1; |
ce6b39df RM |
867 | if (strchr(arg, '/') == NULL) |
868 | addr2.s_addr = INADDR_BROADCAST; | |
fa245a4d | 869 | naddr = realloc(ifo->blacklist, |
e095a6eb | 870 | sizeof(in_addr_t) * (ifo->blacklist_len + 2)); |
fa245a4d RM |
871 | if (naddr == NULL) { |
872 | syslog(LOG_ERR, "%s: %m", __func__); | |
873 | return -1; | |
874 | } | |
875 | ifo->blacklist = naddr; | |
e095a6eb RM |
876 | ifo->blacklist[ifo->blacklist_len++] = addr.s_addr; |
877 | ifo->blacklist[ifo->blacklist_len++] = addr2.s_addr; | |
fd05b7dc | 878 | break; |
d3088c74 | 879 | case 'Z': |
378f8fa4 | 880 | ifdv = splitv(&ifdc, ifdv, arg); |
d3088c74 | 881 | break; |
d7555c12 | 882 | case '4': |
2f0addfd | 883 | ifo->options &= ~DHCPCD_IPV6; |
d7555c12 RM |
884 | ifo->options |= DHCPCD_IPV4; |
885 | break; | |
886 | case '6': | |
887 | ifo->options &= ~DHCPCD_IPV4; | |
2f0addfd | 888 | ifo->options |= DHCPCD_IPV6; |
d7555c12 | 889 | break; |
aae24feb | 890 | #ifdef INET |
4ca7460f RM |
891 | case O_ARPING: |
892 | if (parse_addr(&addr, NULL, arg) != 0) | |
893 | return -1; | |
fa245a4d | 894 | naddr = realloc(ifo->arping, |
4ca7460f | 895 | sizeof(in_addr_t) * (ifo->arping_len + 1)); |
fa245a4d RM |
896 | if (naddr == NULL) { |
897 | syslog(LOG_ERR, "%s: %m", __func__); | |
898 | return -1; | |
899 | } | |
900 | ifo->arping = naddr; | |
4ca7460f RM |
901 | ifo->arping[ifo->arping_len++] = addr.s_addr; |
902 | break; | |
41c60e02 | 903 | case O_DESTINATION: |
d7555c12 | 904 | if (make_option_mask(dhcp_opts, ifo->dstmask, arg, 2) != 0) { |
41c60e02 RM |
905 | if (errno == EINVAL) |
906 | syslog(LOG_ERR, "option `%s' does not take" | |
907 | " an IPv4 address", arg); | |
908 | else | |
909 | syslog(LOG_ERR, "unknown option `%s'", arg); | |
910 | return -1; | |
911 | } | |
912 | break; | |
ff021b0b RM |
913 | case O_FALLBACK: |
914 | free(ifo->fallback); | |
78369646 RM |
915 | ifo->fallback = strdup(arg); |
916 | if (ifo->fallback == NULL) { | |
917 | syslog(LOG_ERR, "%s: %m", __func__); | |
00ababe4 | 918 | return -1; |
78369646 | 919 | } |
ff021b0b | 920 | break; |
aae24feb | 921 | #endif |
eebe9a18 RM |
922 | case O_IPV6RS: |
923 | ifo->options |= DHCPCD_IPV6RS; | |
924 | break; | |
91cd7324 | 925 | case O_NOIPV6RS: |
61dd6cf9 RM |
926 | ifo->options &= ~DHCPCD_IPV6RS; |
927 | break; | |
eebe9a18 | 928 | case O_IPV6RA_FORK: |
61dd6cf9 | 929 | ifo->options &= ~DHCPCD_IPV6RA_REQRDNSS; |
91cd7324 | 930 | break; |
eebe9a18 RM |
931 | case O_IPV6RA_OWN: |
932 | ifo->options |= DHCPCD_IPV6RA_OWN; | |
933 | break; | |
934 | case O_IPV6RA_OWN_D: | |
935 | ifo->options |= DHCPCD_IPV6RA_OWN_DEFAULT; | |
936 | break; | |
7dab081f RM |
937 | case O_NOALIAS: |
938 | ifo->options |= DHCPCD_NOALIAS; | |
939 | break; | |
00ababe4 RM |
940 | #ifdef INET6 |
941 | case O_IA_NA: | |
942 | i = D6_OPTION_IA_NA; | |
943 | /* FALLTHROUGH */ | |
944 | case O_IA_TA: | |
945 | if (i == 0) | |
946 | i = D6_OPTION_IA_TA; | |
947 | /* FALLTHROUGH */ | |
948 | case O_IA_PD: | |
949 | if (i == 0) | |
950 | i = D6_OPTION_IA_PD; | |
951 | ifo->options |= DHCPCD_IA_FORCED; | |
952 | if (ifo->ia_type != 0 && ifo->ia_type != i) { | |
953 | syslog(LOG_ERR, "cannot specify a different IA type"); | |
954 | return -1; | |
955 | } | |
956 | ifo->ia_type = i; | |
957 | if (arg == NULL) | |
958 | break; | |
959 | fp = strchr(arg, ' '); | |
eade34fd RM |
960 | if (fp) |
961 | *fp++ = '\0'; | |
367f7b11 RM |
962 | errno = 0; |
963 | l = strtol(arg, &np, 0); | |
7784695d RM |
964 | if (l >= 0 && l <= (long)UINT32_MAX && |
965 | errno == 0 && *np == '\0') | |
966 | { | |
367f7b11 RM |
967 | u32 = htonl(l); |
968 | memcpy(&_iaid, &u32, sizeof(_iaid)); | |
969 | goto got_iaid; | |
970 | } | |
00ababe4 RM |
971 | if ((s = parse_string((char *)_iaid, sizeof(_iaid), arg)) < 1) { |
972 | syslog(LOG_ERR, "%s: invalid IAID", arg); | |
973 | return -1; | |
974 | } | |
975 | if (s < 4) | |
976 | _iaid[3] = '\0'; | |
977 | if (s < 3) | |
978 | _iaid[2] = '\0'; | |
979 | if (s < 2) | |
980 | _iaid[1] = '\0'; | |
367f7b11 | 981 | got_iaid: |
00ababe4 RM |
982 | iaid = NULL; |
983 | for (sl = 0; sl < ifo->iaid_len; sl++) { | |
984 | if (ifo->iaid[sl].iaid[0] == _iaid[0] && | |
985 | ifo->iaid[sl].iaid[1] == _iaid[1] && | |
986 | ifo->iaid[sl].iaid[2] == _iaid[2] && | |
987 | ifo->iaid[sl].iaid[3] == _iaid[3]) | |
988 | { | |
989 | iaid = &ifo->iaid[sl]; | |
990 | break; | |
991 | } | |
992 | } | |
993 | if (iaid == NULL) { | |
994 | iaid = realloc(ifo->iaid, | |
995 | sizeof(*ifo->iaid) * (ifo->iaid_len + 1)); | |
996 | if (iaid == NULL) { | |
997 | syslog(LOG_ERR, "%s: %m", __func__); | |
998 | return -1; | |
999 | } | |
1000 | ifo->iaid = iaid; | |
1001 | iaid = &ifo->iaid[ifo->iaid_len++]; | |
1002 | iaid->iaid[0] = _iaid[0]; | |
1003 | iaid->iaid[1] = _iaid[1]; | |
1004 | iaid->iaid[2] = _iaid[2]; | |
1005 | iaid->iaid[3] = _iaid[3]; | |
1006 | iaid->sla = NULL; | |
1007 | iaid->sla_len = 0; | |
1008 | } | |
1009 | for (p = fp; p; p = fp) { | |
1010 | fp = strchr(p, ' '); | |
1011 | if (fp) | |
1012 | *fp++ = '\0'; | |
1013 | sla = realloc(iaid->sla, | |
1014 | sizeof(*iaid->sla) * (iaid->sla_len + 1)); | |
1015 | if (sla == NULL) { | |
1016 | syslog(LOG_ERR, "%s: %m", __func__); | |
1017 | return -1; | |
1018 | } | |
1019 | iaid->sla = sla; | |
1020 | sla = &iaid->sla[iaid->sla_len++]; | |
1021 | np = strchr(p, '/'); | |
1022 | if (np) | |
1023 | *np++ = '\0'; | |
00ababe4 RM |
1024 | if (strlcpy(sla->ifname, p, |
1025 | sizeof(sla->ifname)) >= sizeof(sla->ifname)) | |
1026 | { | |
1027 | syslog(LOG_ERR, "%s: interface name too long", | |
1028 | arg); | |
1029 | return -1; | |
1030 | } | |
1031 | p = np; | |
367f7b11 RM |
1032 | if (p) { |
1033 | np = strchr(p, '/'); | |
1034 | if (np) | |
1035 | *np++ = '\0'; | |
1036 | errno = 0; | |
1037 | sla->sla = atoint(p); | |
5985c4e2 | 1038 | sla->sla_set = 1; |
367f7b11 | 1039 | if (errno) |
00ababe4 | 1040 | return -1; |
367f7b11 RM |
1041 | if (np) { |
1042 | sla->prefix_len = atoint(np); | |
1043 | if (sla->prefix_len < 0 || | |
1044 | sla->prefix_len > 128) | |
1045 | return -1; | |
1046 | } else | |
1047 | sla->prefix_len = 64; | |
5985c4e2 RM |
1048 | } else { |
1049 | sla->sla_set = 0; | |
1050 | /* Sanity - check there are no more | |
1051 | * unspecified SLA's */ | |
1052 | for (sl = 0; sl < iaid->sla_len - 1; sl++) { | |
1053 | slap = &iaid->sla[sl]; | |
1054 | if (slap->sla_set == 0 && | |
1055 | strcmp(slap->ifname, sla->ifname) | |
1056 | == 0) | |
1057 | { | |
1058 | syslog(LOG_WARNING, | |
1059 | "%s: cannot specify the " | |
1060 | "same interface twice with " | |
1061 | "an automatic SLA", | |
1062 | sla->ifname); | |
1063 | iaid->sla_len--; | |
1064 | break; | |
1065 | } | |
1066 | } | |
367f7b11 | 1067 | } |
00ababe4 RM |
1068 | } |
1069 | break; | |
1070 | #endif | |
fd05b7dc RM |
1071 | default: |
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | return 1; | |
1076 | } | |
1077 | ||
1078 | static int | |
1079 | parse_config_line(struct if_options *ifo, const char *opt, char *line) | |
1080 | { | |
1081 | unsigned int i; | |
1082 | ||
1083 | for (i = 0; i < sizeof(cf_options) / sizeof(cf_options[0]); i++) { | |
1084 | if (!cf_options[i].name || | |
1085 | strcmp(cf_options[i].name, opt) != 0) | |
1086 | continue; | |
1087 | ||
1088 | if (cf_options[i].has_arg == required_argument && !line) { | |
1089 | fprintf(stderr, | |
eab2229c RM |
1090 | PACKAGE ": option requires an argument -- %s\n", |
1091 | opt); | |
fd05b7dc RM |
1092 | return -1; |
1093 | } | |
1094 | ||
1095 | return parse_option(ifo, cf_options[i].val, line); | |
1096 | } | |
1097 | ||
1098 | fprintf(stderr, PACKAGE ": unknown option -- %s\n", opt); | |
1099 | return -1; | |
1100 | } | |
1101 | ||
1102 | struct if_options * | |
6f767217 RM |
1103 | read_config(const char *file, |
1104 | const char *ifname, const char *ssid, const char *profile) | |
fd05b7dc RM |
1105 | { |
1106 | struct if_options *ifo; | |
1107 | FILE *f; | |
27805e96 | 1108 | char *line, *option, *p; |
6f767217 | 1109 | int skip = 0, have_profile = 0; |
fd05b7dc RM |
1110 | |
1111 | /* Seed our default options */ | |
10e17e3f RM |
1112 | ifo = calloc(1, sizeof(*ifo)); |
1113 | if (ifo == NULL) { | |
1114 | syslog(LOG_ERR, "%s: %m", __func__); | |
1115 | return NULL; | |
1116 | } | |
aae24feb RM |
1117 | ifo->options |= DHCPCD_DAEMONISE | DHCPCD_LINK; |
1118 | #ifdef INET | |
d7555c12 | 1119 | ifo->options |= DHCPCD_IPV4 | DHCPCD_IPV4LL; |
00ababe4 | 1120 | ifo->options |= DHCPCD_GATEWAY | DHCPCD_ARP; |
aae24feb RM |
1121 | #endif |
1122 | #ifdef INET6 | |
d7555c12 | 1123 | ifo->options |= DHCPCD_IPV6 | DHCPCD_IPV6RS | DHCPCD_IPV6RA_REQRDNSS; |
66fd5d67 | 1124 | ifo->dadtransmits = ipv6_dadtransmits(ifname); |
aae24feb | 1125 | #endif |
fd05b7dc | 1126 | ifo->timeout = DEFAULT_TIMEOUT; |
a2a9a498 | 1127 | ifo->reboot = DEFAULT_REBOOT; |
f43e5853 | 1128 | ifo->metric = -1; |
ed913a59 | 1129 | strlcpy(ifo->script, SCRIPT, sizeof(ifo->script)); |
9d9af32d | 1130 | gethostname(ifo->hostname, HOSTNAME_MAX_LEN); |
4fb0c27c | 1131 | /* Ensure that the hostname is NULL terminated */ |
9d9af32d RM |
1132 | ifo->hostname[HOSTNAME_MAX_LEN] = '\0'; |
1133 | if (strcmp(ifo->hostname, "(none)") == 0 || | |
1134 | strcmp(ifo->hostname, "localhost") == 0) | |
1135 | ifo->hostname[0] = '\0'; | |
793c4286 | 1136 | |
27805e96 RM |
1137 | ifo->vendorclassid[0] = strlen(vendor); |
1138 | memcpy(ifo->vendorclassid + 1, vendor, ifo->vendorclassid[0]); | |
fd05b7dc RM |
1139 | |
1140 | /* Parse our options file */ | |
9f7780b0 | 1141 | f = fopen(file ? file : CONFIG, "r"); |
5e2062a4 RM |
1142 | if (f == NULL) { |
1143 | if (file != NULL) | |
1144 | syslog(LOG_ERR, "fopen `%s': %m", file); | |
fd05b7dc | 1145 | return ifo; |
5e2062a4 | 1146 | } |
fd05b7dc | 1147 | |
e1caa8db RM |
1148 | while ((line = get_line(f))) { |
1149 | option = strsep(&line, " \t"); | |
fd05b7dc RM |
1150 | /* Trim trailing whitespace */ |
1151 | if (line && *line) { | |
1152 | p = line + strlen(line) - 1; | |
1153 | while (p != line && | |
eab2229c RM |
1154 | (*p == ' ' || *p == '\t') && |
1155 | *(p - 1) != '\\') | |
fd05b7dc RM |
1156 | *p-- = '\0'; |
1157 | } | |
1158 | /* Start of an interface block, skip if not ours */ | |
1159 | if (strcmp(option, "interface") == 0) { | |
1160 | if (ifname && line && strcmp(line, ifname) == 0) | |
1161 | skip = 0; | |
1162 | else | |
1163 | skip = 1; | |
1164 | continue; | |
c53cf4ef RM |
1165 | } |
1166 | /* Start of an ssid block, skip if not ours */ | |
1167 | if (strcmp(option, "ssid") == 0) { | |
1168 | if (ssid && line && strcmp(line, ssid) == 0) | |
1169 | skip = 0; | |
1170 | else | |
1171 | skip = 1; | |
1172 | continue; | |
fd05b7dc | 1173 | } |
6f767217 RM |
1174 | /* Start of a profile block, skip if not ours */ |
1175 | if (strcmp(option, "profile") == 0) { | |
1176 | if (profile && line && strcmp(line, profile) == 0) { | |
1177 | skip = 0; | |
1178 | have_profile = 1; | |
1179 | } else | |
1180 | skip = 1; | |
1181 | continue; | |
1182 | } | |
fd05b7dc RM |
1183 | if (skip) |
1184 | continue; | |
378f8fa4 | 1185 | parse_config_line(ifo, option, line); |
fd05b7dc | 1186 | } |
fd05b7dc RM |
1187 | fclose(f); |
1188 | ||
6f767217 RM |
1189 | if (profile && !have_profile) { |
1190 | free_options(ifo); | |
1191 | errno = ENOENT; | |
1192 | ifo = NULL; | |
1193 | } | |
1194 | ||
fd05b7dc | 1195 | /* Terminate the encapsulated options */ |
2f0addfd | 1196 | if (ifo->vendor[0] && !(ifo->options & DHCPCD_VENDORRAW)) { |
fd05b7dc RM |
1197 | ifo->vendor[0]++; |
1198 | ifo->vendor[ifo->vendor[0]] = DHO_END; | |
1199 | } | |
00ababe4 RM |
1200 | |
1201 | #ifdef INET6 | |
2f0addfd RM |
1202 | if (!(ifo->options & DHCPCD_IPV6)) |
1203 | ifo->options &= ~DHCPCD_IPV6RS; | |
1204 | ||
00ababe4 RM |
1205 | if (ifname && ifo->iaid_len == 0 && ifo->options & DHCPCD_IPV6) { |
1206 | ifo->iaid = malloc(sizeof(*ifo->iaid)); | |
1207 | if (ifo->iaid == NULL) | |
1208 | syslog(LOG_ERR, "%s: %m", __func__); | |
1209 | else { | |
1210 | if (ifo->ia_type == 0) | |
1211 | ifo->ia_type = D6_OPTION_IA_NA; | |
1212 | ifo->iaid_len = strlen(ifname); | |
1213 | if (ifo->iaid_len <= sizeof(ifo->iaid->iaid)) { | |
1214 | strncpy((char *)ifo->iaid->iaid, ifname, | |
1215 | sizeof(ifo->iaid->iaid)); | |
1216 | memset(ifo->iaid->iaid + ifo->iaid_len, 0, | |
1217 | sizeof(ifo->iaid->iaid) -ifo->iaid_len); | |
1218 | } else { | |
1219 | uint32_t idx = if_nametoindex(ifname); | |
1220 | memcpy(ifo->iaid->iaid, &idx, sizeof(idx)); | |
1221 | } | |
1222 | ifo->iaid_len = 1; | |
1223 | ifo->iaid->sla = NULL; | |
1224 | ifo->iaid->sla_len = 0; | |
1225 | } | |
1226 | } else | |
1227 | ifo->options |= DHCPCD_IA_FORCED; | |
1228 | #endif | |
1229 | ||
fd05b7dc RM |
1230 | return ifo; |
1231 | } | |
1232 | ||
1233 | int | |
1234 | add_options(struct if_options *ifo, int argc, char **argv) | |
1235 | { | |
1236 | int oi, opt, r = 1; | |
1237 | ||
1238 | optind = 0; | |
1239 | while ((opt = getopt_long(argc, argv, IF_OPTS, cf_options, &oi)) != -1) | |
1240 | { | |
1241 | r = parse_option(ifo, opt, optarg); | |
1242 | if (r != 1) | |
1243 | break; | |
1244 | } | |
1245 | /* Terminate the encapsulated options */ | |
95d6dcfa | 1246 | if (r == 1 && ifo->vendor[0] && !(ifo->options & DHCPCD_VENDORRAW)) { |
fd05b7dc RM |
1247 | ifo->vendor[0]++; |
1248 | ifo->vendor[ifo->vendor[0]] = DHO_END; | |
1249 | } | |
1250 | return r; | |
1251 | } | |
1252 | ||
1253 | void | |
1254 | free_options(struct if_options *ifo) | |
1255 | { | |
1256 | size_t i; | |
1257 | ||
f43e5853 RM |
1258 | if (ifo) { |
1259 | if (ifo->environ) { | |
1260 | i = 0; | |
1261 | while (ifo->environ[i]) | |
1262 | free(ifo->environ[i++]); | |
1263 | free(ifo->environ); | |
1264 | } | |
91a44b91 RM |
1265 | if (ifo->config) { |
1266 | i = 0; | |
1267 | while (ifo->config[i]) | |
1268 | free(ifo->config[i++]); | |
1269 | free(ifo->config); | |
1270 | } | |
e88c525f | 1271 | ipv4_freeroutes(ifo->routes); |
ff021b0b | 1272 | free(ifo->arping); |
f43e5853 | 1273 | free(ifo->blacklist); |
ff021b0b | 1274 | free(ifo->fallback); |
00ababe4 RM |
1275 | #ifdef INET6 |
1276 | for (i = 0; i < ifo->iaid_len; i++) | |
1277 | free(ifo->iaid[i].sla); | |
1278 | free(ifo->iaid); | |
1279 | #endif | |
f43e5853 | 1280 | free(ifo); |
fd05b7dc | 1281 | } |
fd05b7dc | 1282 | } |