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8cc47ba2 | 1 | /* |
fd05b7dc | 2 | * dhcpcd - DHCP client daemon |
fad320b9 | 3 | * Copyright (c) 2006-2014 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 | ||
0d033d17 RM |
28 | #define _WITH_GETLINE /* Stop FreeBSD bitching */ |
29 | ||
0d0c5f66 | 30 | #include <sys/param.h> |
fd05b7dc RM |
31 | #include <sys/types.h> |
32 | ||
33 | #include <arpa/inet.h> | |
34 | ||
35 | #include <ctype.h> | |
36 | #include <errno.h> | |
37 | #include <getopt.h> | |
a93e79c6 | 38 | #include <grp.h> |
0d0c5f66 | 39 | #include <limits.h> |
fd05b7dc RM |
40 | #include <paths.h> |
41 | #include <stdio.h> | |
42 | #include <stdlib.h> | |
43 | #include <string.h> | |
765fbf7d | 44 | #include <syslog.h> |
fd05b7dc RM |
45 | #include <unistd.h> |
46 | #include <time.h> | |
47 | ||
fd05b7dc | 48 | #include "config.h" |
9f7780b0 | 49 | #include "common.h" |
d7555c12 RM |
50 | #include "dhcp.h" |
51 | #include "dhcp6.h" | |
1cd05a96 | 52 | #include "dhcpcd-embedded.h" |
fd05b7dc | 53 | #include "if-options.h" |
e88c525f | 54 | #include "ipv4.h" |
fd05b7dc | 55 | |
4ca7460f RM |
56 | /* These options only make sense in the config file, so don't use any |
57 | valid short options for them */ | |
eebe9a18 RM |
58 | #define O_BASE MAX('z', 'Z') + 1 |
59 | #define O_ARPING O_BASE + 1 | |
60 | #define O_FALLBACK O_BASE + 2 | |
61 | #define O_DESTINATION O_BASE + 3 | |
62 | #define O_IPV6RS O_BASE + 4 | |
00ababe4 RM |
63 | #define O_NOIPV6RS O_BASE + 5 |
64 | #define O_IPV6RA_FORK O_BASE + 6 | |
eebe9a18 RM |
65 | #define O_IPV6RA_OWN O_BASE + 7 |
66 | #define O_IPV6RA_OWN_D O_BASE + 8 | |
7dab081f | 67 | #define O_NOALIAS O_BASE + 9 |
00ababe4 RM |
68 | #define O_IA_NA O_BASE + 10 |
69 | #define O_IA_TA O_BASE + 11 | |
70 | #define O_IA_PD O_BASE + 12 | |
d6a18654 | 71 | #define O_HOSTNAME_SHORT O_BASE + 13 |
413652c1 RM |
72 | #define O_DEV O_BASE + 14 |
73 | #define O_NODEV O_BASE + 15 | |
bb8051bf RM |
74 | #define O_NOIPV4 O_BASE + 16 |
75 | #define O_NOIPV6 O_BASE + 17 | |
ebc9d360 | 76 | #define O_IAID O_BASE + 18 |
8e7d8c37 RM |
77 | #define O_DEFINE O_BASE + 19 |
78 | #define O_DEFINE6 O_BASE + 20 | |
79 | #define O_EMBED O_BASE + 21 | |
80 | #define O_ENCAP O_BASE + 22 | |
7a911e57 RM |
81 | #define O_VENDOPT O_BASE + 23 |
82 | #define O_VENDCLASS O_BASE + 24 | |
c73ed171 RM |
83 | #define O_AUTHPROTOCOL O_BASE + 25 |
84 | #define O_AUTHTOKEN O_BASE + 26 | |
85 | #define O_AUTHNOTREQUIRED O_BASE + 27 | |
d4154ba7 RM |
86 | #define O_NODHCP O_BASE + 28 |
87 | #define O_NODHCP6 O_BASE + 29 | |
94bec972 RM |
88 | #define O_DHCP O_BASE + 30 |
89 | #define O_DHCP6 O_BASE + 31 | |
90 | #define O_IPV4 O_BASE + 32 | |
91 | #define O_IPV6 O_BASE + 33 | |
a93e79c6 | 92 | #define O_CONTROLGRP O_BASE + 34 |
1aeaf0e7 | 93 | #define O_SLAAC O_BASE + 35 |
ee56a47d | 94 | #define O_GATEWAY O_BASE + 36 |
9d5cb9f9 | 95 | #define O_PFXDLGMIX O_BASE + 37 |
413652c1 | 96 | |
fd05b7dc | 97 | const struct option cf_options[] = { |
ba97e494 RM |
98 | {"background", no_argument, NULL, 'b'}, |
99 | {"script", required_argument, NULL, 'c'}, | |
100 | {"debug", no_argument, NULL, 'd'}, | |
6bfd88f1 | 101 | {"env", required_argument, NULL, 'e'}, |
ba97e494 | 102 | {"config", required_argument, NULL, 'f'}, |
6bfd88f1 | 103 | {"reconfigure", no_argument, NULL, 'g'}, |
ba97e494 RM |
104 | {"hostname", optional_argument, NULL, 'h'}, |
105 | {"vendorclassid", optional_argument, NULL, 'i'}, | |
106 | {"release", no_argument, NULL, 'k'}, | |
107 | {"leasetime", required_argument, NULL, 'l'}, | |
108 | {"metric", required_argument, NULL, 'm'}, | |
109 | {"rebind", no_argument, NULL, 'n'}, | |
110 | {"option", required_argument, NULL, 'o'}, | |
111 | {"persistent", no_argument, NULL, 'p'}, | |
112 | {"quiet", no_argument, NULL, 'q'}, | |
113 | {"request", optional_argument, NULL, 'r'}, | |
114 | {"inform", optional_argument, NULL, 's'}, | |
115 | {"timeout", required_argument, NULL, 't'}, | |
116 | {"userclass", required_argument, NULL, 'u'}, | |
117 | {"vendor", required_argument, NULL, 'v'}, | |
7013b073 | 118 | {"waitip", optional_argument, NULL, 'w'}, |
ba97e494 | 119 | {"exit", no_argument, NULL, 'x'}, |
d3088c74 | 120 | {"allowinterfaces", required_argument, NULL, 'z'}, |
a2a9a498 | 121 | {"reboot", required_argument, NULL, 'y'}, |
ba97e494 RM |
122 | {"noarp", no_argument, NULL, 'A'}, |
123 | {"nobackground", no_argument, NULL, 'B'}, | |
124 | {"nohook", required_argument, NULL, 'C'}, | |
125 | {"duid", no_argument, NULL, 'D'}, | |
126 | {"lastlease", no_argument, NULL, 'E'}, | |
127 | {"fqdn", optional_argument, NULL, 'F'}, | |
128 | {"nogateway", no_argument, NULL, 'G'}, | |
00ababe4 | 129 | {"xidhwaddr", no_argument, NULL, 'H'}, |
ba97e494 | 130 | {"clientid", optional_argument, NULL, 'I'}, |
900b3da4 | 131 | {"broadcast", no_argument, NULL, 'J'}, |
ba97e494 RM |
132 | {"nolink", no_argument, NULL, 'K'}, |
133 | {"noipv4ll", no_argument, NULL, 'L'}, | |
b3174181 | 134 | {"master", no_argument, NULL, 'M'}, |
ba97e494 RM |
135 | {"nooption", optional_argument, NULL, 'O'}, |
136 | {"require", required_argument, NULL, 'Q'}, | |
91a44b91 | 137 | {"static", required_argument, NULL, 'S'}, |
ba97e494 | 138 | {"test", no_argument, NULL, 'T'}, |
dc60cba4 | 139 | {"dumplease", no_argument, NULL, 'U'}, |
ba97e494 | 140 | {"variables", no_argument, NULL, 'V'}, |
bf80d526 | 141 | {"whitelist", required_argument, NULL, 'W'}, |
ba97e494 | 142 | {"blacklist", required_argument, NULL, 'X'}, |
d3088c74 | 143 | {"denyinterfaces", required_argument, NULL, 'Z'}, |
4ca7460f | 144 | {"arping", required_argument, NULL, O_ARPING}, |
41c60e02 | 145 | {"destination", required_argument, NULL, O_DESTINATION}, |
ff021b0b | 146 | {"fallback", required_argument, NULL, O_FALLBACK}, |
eebe9a18 | 147 | {"ipv6rs", no_argument, NULL, O_IPV6RS}, |
91cd7324 | 148 | {"noipv6rs", no_argument, NULL, O_NOIPV6RS}, |
eebe9a18 RM |
149 | {"ipv6ra_fork", no_argument, NULL, O_IPV6RA_FORK}, |
150 | {"ipv6ra_own", no_argument, NULL, O_IPV6RA_OWN}, | |
151 | {"ipv6ra_own_default", no_argument, NULL, O_IPV6RA_OWN_D}, | |
d7555c12 RM |
152 | {"ipv4only", no_argument, NULL, '4'}, |
153 | {"ipv6only", no_argument, NULL, '6'}, | |
94bec972 | 154 | {"ipv4", no_argument, NULL, O_IPV4}, |
bb8051bf | 155 | {"noipv4", no_argument, NULL, O_NOIPV4}, |
94bec972 | 156 | {"ipv6", no_argument, NULL, O_IPV6}, |
bb8051bf | 157 | {"noipv6", no_argument, NULL, O_NOIPV6}, |
7dab081f | 158 | {"noalias", no_argument, NULL, O_NOALIAS}, |
7a911e57 | 159 | {"iaid", required_argument, NULL, O_IAID}, |
00ababe4 RM |
160 | {"ia_na", no_argument, NULL, O_IA_NA}, |
161 | {"ia_ta", no_argument, NULL, O_IA_TA}, | |
162 | {"ia_pd", no_argument, NULL, O_IA_PD}, | |
d6a18654 | 163 | {"hostname_short", no_argument, NULL, O_HOSTNAME_SHORT}, |
413652c1 RM |
164 | {"dev", required_argument, NULL, O_DEV}, |
165 | {"nodev", no_argument, NULL, O_NODEV}, | |
7a911e57 RM |
166 | {"define", required_argument, NULL, O_DEFINE}, |
167 | {"define6", required_argument, NULL, O_DEFINE6}, | |
168 | {"embed", required_argument, NULL, O_EMBED}, | |
169 | {"encap", required_argument, NULL, O_ENCAP}, | |
170 | {"vendopt", required_argument, NULL, O_VENDOPT}, | |
171 | {"vendclass", required_argument, NULL, O_VENDCLASS}, | |
c73ed171 RM |
172 | {"authprotocol", required_argument, NULL, O_AUTHPROTOCOL}, |
173 | {"authtoken", required_argument, NULL, O_AUTHTOKEN}, | |
174 | {"noauthrequired", no_argument, NULL, O_AUTHNOTREQUIRED}, | |
94bec972 | 175 | {"dhcp", no_argument, NULL, O_DHCP}, |
d4154ba7 | 176 | {"nodhcp", no_argument, NULL, O_NODHCP}, |
94bec972 | 177 | {"dhcp6", no_argument, NULL, O_DHCP6}, |
d4154ba7 | 178 | {"nodhcp6", no_argument, NULL, O_NODHCP6}, |
a93e79c6 | 179 | {"controlgroup", required_argument, NULL, O_CONTROLGRP}, |
1aeaf0e7 | 180 | {"slaac", required_argument, NULL, O_SLAAC}, |
3d3e410f | 181 | {"gateway", no_argument, NULL, O_GATEWAY}, |
9d5cb9f9 | 182 | {"ia_pd_mix", no_argument, NULL, O_PFXDLGMIX}, |
ba97e494 | 183 | {NULL, 0, NULL, '\0'} |
fd05b7dc RM |
184 | }; |
185 | ||
186 | static int | |
187 | atoint(const char *s) | |
188 | { | |
189 | char *t; | |
190 | long n; | |
191 | ||
192 | errno = 0; | |
193 | n = strtol(s, &t, 0); | |
194 | if ((errno != 0 && n == 0) || s == t || | |
195 | (errno == ERANGE && (n == LONG_MAX || n == LONG_MIN))) | |
196 | { | |
367f7b11 RM |
197 | if (errno == 0) |
198 | errno = EINVAL; | |
765fbf7d | 199 | syslog(LOG_ERR, "`%s' out of range", s); |
fd05b7dc RM |
200 | return -1; |
201 | } | |
202 | ||
203 | return (int)n; | |
204 | } | |
205 | ||
00ababe4 | 206 | static char * |
fd05b7dc RM |
207 | add_environ(struct if_options *ifo, const char *value, int uniq) |
208 | { | |
209 | char **newlist; | |
210 | char **lst = ifo->environ; | |
211 | size_t i = 0, l, lv; | |
fa245a4d | 212 | char *match = NULL, *p, *n; |
fd05b7dc | 213 | |
78369646 RM |
214 | match = strdup(value); |
215 | if (match == NULL) { | |
216 | syslog(LOG_ERR, "%s: %m", __func__); | |
217 | return NULL; | |
218 | } | |
fd05b7dc | 219 | p = strchr(match, '='); |
d7cfde68 RM |
220 | if (p == NULL) { |
221 | syslog(LOG_ERR, "%s: no assignment: %s", __func__, value); | |
222 | free(match); | |
223 | return NULL; | |
224 | } | |
225 | *p++ = '\0'; | |
fd05b7dc RM |
226 | l = strlen(match); |
227 | ||
228 | while (lst && lst[i]) { | |
229 | if (match && strncmp(lst[i], match, l) == 0) { | |
230 | if (uniq) { | |
78369646 RM |
231 | n = strdup(value); |
232 | if (n == NULL) { | |
233 | syslog(LOG_ERR, "%s: %m", __func__); | |
8fc52ced | 234 | free(match); |
78369646 RM |
235 | return NULL; |
236 | } | |
fd05b7dc | 237 | free(lst[i]); |
78369646 | 238 | lst[i] = n; |
fd05b7dc RM |
239 | } else { |
240 | /* Append a space and the value to it */ | |
241 | l = strlen(lst[i]); | |
d7cfde68 | 242 | lv = strlen(p); |
fa245a4d RM |
243 | n = realloc(lst[i], l + lv + 2); |
244 | if (n == NULL) { | |
245 | syslog(LOG_ERR, "%s: %m", __func__); | |
8fc52ced | 246 | free(match); |
fa245a4d RM |
247 | return NULL; |
248 | } | |
249 | lst[i] = n; | |
fd05b7dc RM |
250 | lst[i][l] = ' '; |
251 | memcpy(lst[i] + l + 1, p, lv); | |
252 | lst[i][l + lv + 1] = '\0'; | |
253 | } | |
254 | free(match); | |
255 | return lst[i]; | |
256 | } | |
257 | i++; | |
258 | } | |
259 | ||
8fc52ced | 260 | free(match); |
78369646 RM |
261 | n = strdup(value); |
262 | if (n == NULL) { | |
263 | syslog(LOG_ERR, "%s: %m", __func__); | |
264 | return NULL; | |
265 | } | |
fa245a4d RM |
266 | newlist = realloc(lst, sizeof(char *) * (i + 2)); |
267 | if (newlist == NULL) { | |
268 | syslog(LOG_ERR, "%s: %m", __func__); | |
8fc52ced | 269 | free(n); |
fa245a4d RM |
270 | return NULL; |
271 | } | |
78369646 | 272 | newlist[i] = n; |
fd05b7dc RM |
273 | newlist[i + 1] = NULL; |
274 | ifo->environ = newlist; | |
fd05b7dc RM |
275 | return newlist[i]; |
276 | } | |
277 | ||
278 | #define parse_string(buf, len, arg) parse_string_hwaddr(buf, len, arg, 0) | |
279 | static ssize_t | |
34457fe6 | 280 | parse_string_hwaddr(char *sbuf, size_t slen, const char *str, int clid) |
fd05b7dc | 281 | { |
34457fe6 | 282 | size_t l; |
fd05b7dc RM |
283 | const char *p; |
284 | int i, punt_last = 0; | |
285 | char c[4]; | |
286 | ||
287 | /* If surrounded by quotes then it's a string */ | |
288 | if (*str == '"') { | |
289 | str++; | |
290 | l = strlen(str); | |
291 | p = str + l - 1; | |
292 | if (*p == '"') | |
293 | punt_last = 1; | |
294 | } else { | |
34457fe6 RM |
295 | l = (size_t)hwaddr_aton(NULL, str); |
296 | if ((ssize_t) l != -1 && l > 1) { | |
fd05b7dc RM |
297 | if (l > slen) { |
298 | errno = ENOBUFS; | |
299 | return -1; | |
300 | } | |
301 | hwaddr_aton((uint8_t *)sbuf, str); | |
34457fe6 | 302 | return (ssize_t)l; |
fd05b7dc RM |
303 | } |
304 | } | |
305 | ||
306 | /* Process escapes */ | |
307 | l = 0; | |
308 | /* If processing a string on the clientid, first byte should be | |
309 | * 0 to indicate a non hardware type */ | |
9c9ad2f1 | 310 | if (clid && *str) { |
7a911e57 RM |
311 | if (sbuf) |
312 | *sbuf++ = 0; | |
fd05b7dc RM |
313 | l++; |
314 | } | |
315 | c[3] = '\0'; | |
316 | while (*str) { | |
7a911e57 | 317 | if (++l > slen && sbuf) { |
fd05b7dc RM |
318 | errno = ENOBUFS; |
319 | return -1; | |
320 | } | |
321 | if (*str == '\\') { | |
322 | str++; | |
857576b4 | 323 | switch(*str) { |
fd05b7dc RM |
324 | case '\0': |
325 | break; | |
326 | case 'b': | |
7a911e57 RM |
327 | if (sbuf) |
328 | *sbuf++ = '\b'; | |
857576b4 | 329 | str++; |
fd05b7dc RM |
330 | break; |
331 | case 'n': | |
7a911e57 RM |
332 | if (sbuf) |
333 | *sbuf++ = '\n'; | |
857576b4 | 334 | str++; |
fd05b7dc RM |
335 | break; |
336 | case 'r': | |
7a911e57 RM |
337 | if (sbuf) |
338 | *sbuf++ = '\r'; | |
857576b4 | 339 | str++; |
fd05b7dc RM |
340 | break; |
341 | case 't': | |
7a911e57 RM |
342 | if (sbuf) |
343 | *sbuf++ = '\t'; | |
857576b4 | 344 | str++; |
fd05b7dc RM |
345 | break; |
346 | case 'x': | |
347 | /* Grab a hex code */ | |
348 | c[1] = '\0'; | |
349 | for (i = 0; i < 2; i++) { | |
350 | if (isxdigit((unsigned char)*str) == 0) | |
351 | break; | |
352 | c[i] = *str++; | |
353 | } | |
7a911e57 | 354 | if (c[1] != '\0' && sbuf) { |
fd05b7dc | 355 | c[2] = '\0'; |
34457fe6 | 356 | *sbuf++ = (char)strtol(c, NULL, 16); |
fd05b7dc RM |
357 | } else |
358 | l--; | |
359 | break; | |
360 | case '0': | |
361 | /* Grab an octal code */ | |
362 | c[2] = '\0'; | |
363 | for (i = 0; i < 3; i++) { | |
364 | if (*str < '0' || *str > '7') | |
365 | break; | |
366 | c[i] = *str++; | |
367 | } | |
7a911e57 | 368 | if (c[2] != '\0' && sbuf) { |
34457fe6 | 369 | i = (int)strtol(c, NULL, 8); |
fd05b7dc RM |
370 | if (i > 255) |
371 | i = 255; | |
34457fe6 | 372 | *sbuf ++= (char)i; |
fd05b7dc RM |
373 | } else |
374 | l--; | |
375 | break; | |
376 | default: | |
7a911e57 RM |
377 | if (sbuf) |
378 | *sbuf++ = *str; | |
379 | str++; | |
380 | break; | |
fd05b7dc | 381 | } |
7a911e57 RM |
382 | } else { |
383 | if (sbuf) | |
384 | *sbuf++ = *str; | |
385 | str++; | |
386 | } | |
fd05b7dc | 387 | } |
c35f63c8 | 388 | if (punt_last) { |
7a911e57 RM |
389 | if (sbuf) |
390 | *--sbuf = '\0'; | |
c35f63c8 RM |
391 | l--; |
392 | } | |
34457fe6 | 393 | return (ssize_t)l; |
fd05b7dc RM |
394 | } |
395 | ||
ebc9d360 | 396 | static int |
c73ed171 | 397 | parse_iaid1(uint8_t *iaid, const char *arg, size_t len, int n) |
ebc9d360 RM |
398 | { |
399 | unsigned long l; | |
34457fe6 | 400 | ssize_t s; |
ebc9d360 RM |
401 | uint32_t u32; |
402 | char *np; | |
403 | ||
404 | errno = 0; | |
405 | l = strtoul(arg, &np, 0); | |
406 | if (l <= (unsigned long)UINT32_MAX && errno == 0 && *np == '\0') { | |
c73ed171 | 407 | if (n) |
76bb4d03 | 408 | u32 = htonl((uint32_t)l); |
c73ed171 | 409 | else |
76bb4d03 | 410 | u32 = (uint32_t)l; |
ebc9d360 RM |
411 | memcpy(iaid, &u32, sizeof(u32)); |
412 | return 0; | |
413 | } | |
414 | ||
415 | if ((s = parse_string((char *)iaid, len, arg)) < 1) { | |
416 | syslog(LOG_ERR, "%s: invalid IAID", arg); | |
417 | return -1; | |
418 | } | |
419 | if (s < 4) | |
420 | iaid[3] = '\0'; | |
421 | if (s < 3) | |
422 | iaid[2] = '\0'; | |
423 | if (s < 2) | |
424 | iaid[1] = '\0'; | |
425 | return 0; | |
426 | } | |
427 | ||
c73ed171 RM |
428 | static int |
429 | parse_iaid(uint8_t *iaid, const char *arg, size_t len) | |
430 | { | |
431 | ||
432 | return parse_iaid1(iaid, arg, len, 1); | |
433 | } | |
434 | ||
435 | static int | |
436 | parse_uint32(uint32_t *i, const char *arg) | |
437 | { | |
438 | ||
439 | return parse_iaid1((uint8_t *)i, arg, sizeof(uint32_t), 0); | |
440 | } | |
441 | ||
ba97e494 RM |
442 | static char ** |
443 | splitv(int *argc, char **argv, const char *arg) | |
444 | { | |
fa245a4d | 445 | char **n, **v = argv; |
78369646 | 446 | char *o = strdup(arg), *p, *t, *nt; |
ba97e494 | 447 | |
78369646 RM |
448 | if (o == NULL) { |
449 | syslog(LOG_ERR, "%s: %m", __func__); | |
450 | return v; | |
451 | } | |
ba97e494 RM |
452 | p = o; |
453 | while ((t = strsep(&p, ", "))) { | |
fa245a4d RM |
454 | nt = strdup(t); |
455 | if (nt == NULL) { | |
456 | syslog(LOG_ERR, "%s: %m", __func__); | |
8fc52ced RM |
457 | free(o); |
458 | return v; | |
fa245a4d | 459 | } |
34457fe6 | 460 | n = realloc(v, sizeof(char *) * ((size_t)(*argc) + 1)); |
fa245a4d RM |
461 | if (n == NULL) { |
462 | syslog(LOG_ERR, "%s: %m", __func__); | |
8fc52ced RM |
463 | free(o); |
464 | free(nt); | |
465 | return v; | |
fa245a4d RM |
466 | } |
467 | v = n; | |
8fc52ced | 468 | v[(*argc)++] = nt; |
ba97e494 RM |
469 | } |
470 | free(o); | |
00ababe4 | 471 | return v; |
ba97e494 RM |
472 | } |
473 | ||
1f4c1525 | 474 | #ifdef INET |
91a44b91 RM |
475 | static int |
476 | parse_addr(struct in_addr *addr, struct in_addr *net, const char *arg) | |
477 | { | |
478 | char *p; | |
479 | int i; | |
480 | ||
2f7cb97c RM |
481 | if (arg == NULL || *arg == '\0') { |
482 | if (addr != NULL) | |
483 | addr->s_addr = 0; | |
484 | if (net != NULL) | |
485 | net->s_addr = 0; | |
91a44b91 | 486 | return 0; |
2f7cb97c | 487 | } |
91a44b91 RM |
488 | if ((p = strchr(arg, '/')) != NULL) { |
489 | *p++ = '\0'; | |
490 | if (net != NULL && | |
491 | (sscanf(p, "%d", &i) != 1 || | |
eab2229c | 492 | inet_cidrtoaddr(i, net) != 0)) |
91a44b91 RM |
493 | { |
494 | syslog(LOG_ERR, "`%s' is not a valid CIDR", p); | |
495 | return -1; | |
496 | } | |
00ababe4 | 497 | } |
2f7cb97c | 498 | |
91a44b91 RM |
499 | if (addr != NULL && inet_aton(arg, addr) == 0) { |
500 | syslog(LOG_ERR, "`%s' is not a valid IP address", arg); | |
501 | return -1; | |
502 | } | |
2f7cb97c | 503 | if (p != NULL) |
e095a6eb | 504 | *--p = '/'; |
8fc52ced | 505 | else if (net != NULL && addr != NULL) |
e88c525f | 506 | net->s_addr = ipv4_getnetmask(addr->s_addr); |
91a44b91 | 507 | return 0; |
1f4c1525 | 508 | } |
aae24feb | 509 | #else |
1f4c1525 RM |
510 | static int |
511 | parse_addr(__unused struct in_addr *addr, __unused struct in_addr *net, | |
512 | __unused const char *arg) | |
513 | { | |
514 | ||
aae24feb RM |
515 | syslog(LOG_ERR, "No IPv4 support"); |
516 | return -1; | |
91a44b91 | 517 | } |
1f4c1525 | 518 | #endif |
91a44b91 | 519 | |
00ababe4 | 520 | static const char * |
4eb7b489 | 521 | set_option_space(struct dhcpcd_ctx *ctx, |
49b749f0 RM |
522 | const char *arg, |
523 | const struct dhcp_opt **d, size_t *dl, | |
524 | const struct dhcp_opt **od, size_t *odl, | |
d7555c12 RM |
525 | struct if_options *ifo, |
526 | uint8_t *request[], uint8_t *require[], uint8_t *no[]) | |
527 | { | |
528 | ||
aae24feb | 529 | #ifdef INET6 |
d7555c12 | 530 | if (strncmp(arg, "dhcp6_", strlen("dhcp6_")) == 0) { |
4eb7b489 RM |
531 | *d = ctx->dhcp6_opts; |
532 | *dl = ctx->dhcp6_opts_len; | |
49b749f0 RM |
533 | *od = ifo->dhcp6_override; |
534 | *odl = ifo->dhcp6_override_len; | |
d7555c12 RM |
535 | *request = ifo->requestmask6; |
536 | *require = ifo->requiremask6; | |
537 | *no = ifo->nomask6; | |
538 | return arg + strlen("dhcp6_"); | |
539 | } | |
aae24feb RM |
540 | #endif |
541 | ||
542 | #ifdef INET | |
4eb7b489 RM |
543 | *d = ctx->dhcp_opts; |
544 | *dl = ctx->dhcp_opts_len; | |
49b749f0 RM |
545 | *od = ifo->dhcp_override; |
546 | *odl = ifo->dhcp_override_len; | |
aae24feb RM |
547 | #else |
548 | *d = NULL; | |
ae4e592f | 549 | *dl = 0; |
49b749f0 RM |
550 | *od = NULL; |
551 | *odl = 0; | |
aae24feb | 552 | #endif |
d7555c12 RM |
553 | *request = ifo->requestmask; |
554 | *require = ifo->requiremask; | |
555 | *no = ifo->nomask; | |
556 | return arg; | |
557 | } | |
558 | ||
1cd05a96 | 559 | void |
8e7d8c37 RM |
560 | free_dhcp_opt_embenc(struct dhcp_opt *opt) |
561 | { | |
562 | size_t i; | |
bc22d277 | 563 | struct dhcp_opt *o; |
8e7d8c37 | 564 | |
bc22d277 | 565 | free(opt->var); |
8e7d8c37 | 566 | |
bc22d277 | 567 | for (i = 0, o = opt->embopts; i < opt->embopts_len; i++, o++) |
e877fba7 | 568 | free_dhcp_opt_embenc(o); |
8e7d8c37 RM |
569 | free(opt->embopts); |
570 | opt->embopts_len = 0; | |
571 | opt->embopts = NULL; | |
572 | ||
bc22d277 | 573 | for (i = 0, o = opt->encopts; i < opt->encopts_len; i++, o++) |
e877fba7 | 574 | free_dhcp_opt_embenc(o); |
8e7d8c37 RM |
575 | free(opt->encopts); |
576 | opt->encopts_len = 0; | |
577 | opt->encopts = NULL; | |
578 | } | |
579 | ||
1cd05a96 RM |
580 | static char * |
581 | strwhite(const char *s) | |
582 | { | |
583 | ||
4dd50184 RM |
584 | if (s == NULL) |
585 | return NULL; | |
1cd05a96 RM |
586 | while (*s != ' ' && *s != '\t') { |
587 | if (*s == '\0') | |
588 | return NULL; | |
589 | s++; | |
590 | } | |
591 | return UNCONST(s); | |
592 | } | |
593 | ||
594 | static char * | |
595 | strskipwhite(const char *s) | |
596 | { | |
597 | ||
4dd50184 RM |
598 | if (s == NULL) |
599 | return NULL; | |
1cd05a96 RM |
600 | while (*s == ' ' || *s == '\t') { |
601 | if (*s == '\0') | |
602 | return NULL; | |
603 | s++; | |
604 | } | |
605 | return UNCONST(s); | |
606 | } | |
607 | ||
c73ed171 RM |
608 | /* Find the end pointer of a string. */ |
609 | static char * | |
610 | strend(const char *s) | |
611 | { | |
612 | ||
613 | s = strskipwhite(s); | |
614 | if (s == NULL) | |
615 | return NULL; | |
616 | if (*s != '"') | |
617 | return strchr(s, ' '); | |
618 | s++; | |
619 | for (; *s != '"' ; s++) { | |
620 | if (*s == '\0') | |
621 | return NULL; | |
622 | if (*s == '\\') { | |
623 | if (*(++s) == '\0') | |
624 | return NULL; | |
625 | } | |
626 | } | |
627 | return UNCONST(++s); | |
628 | } | |
629 | ||
fd05b7dc | 630 | static int |
4eb7b489 RM |
631 | parse_option(struct dhcpcd_ctx *ctx, const char *ifname, struct if_options *ifo, |
632 | int opt, const char *arg, struct dhcp_opt **ldop, struct dhcp_opt **edop) | |
fd05b7dc | 633 | { |
a93e79c6 RM |
634 | int i, t; |
635 | long l; | |
76bb4d03 | 636 | unsigned long u; |
fa245a4d | 637 | char *p = NULL, *fp, *np, **nconf; |
fd05b7dc | 638 | ssize_t s; |
e095a6eb | 639 | struct in_addr addr, addr2; |
fa245a4d | 640 | in_addr_t *naddr; |
91a44b91 | 641 | struct rt *rt; |
49b749f0 | 642 | const struct dhcp_opt *d, *od; |
d7555c12 | 643 | uint8_t *request, *require, *no; |
8e7d8c37 | 644 | struct dhcp_opt **dop, *ndop; |
49b749f0 | 645 | size_t *dop_len, dl, odl; |
7a911e57 | 646 | struct vivco *vivco; |
c73ed171 | 647 | struct token *token; |
a93e79c6 RM |
648 | struct group *grp; |
649 | #ifdef _REENTRANT | |
a93e79c6 RM |
650 | struct group grpbuf; |
651 | #endif | |
1f4c1525 | 652 | #ifdef INET6 |
1f4c1525 | 653 | size_t sl; |
ebc9d360 RM |
654 | struct if_ia *ia; |
655 | uint8_t iaid[4]; | |
5985c4e2 | 656 | struct if_sla *sla, *slap; |
1f4c1525 | 657 | #endif |
fd05b7dc | 658 | |
8e7d8c37 RM |
659 | dop = NULL; |
660 | dop_len = NULL; | |
7a02120f RM |
661 | #ifdef INET6 |
662 | i = 0; | |
663 | #endif | |
fd05b7dc | 664 | switch(opt) { |
5e2062a4 | 665 | case 'f': /* FALLTHROUGH */ |
6bfd88f1 | 666 | case 'g': /* FALLTHROUGH */ |
da166178 RM |
667 | case 'n': /* FALLTHROUGH */ |
668 | case 'x': /* FALLTHROUGH */ | |
dc60cba4 | 669 | case 'T': /* FALLTHROUGH */ |
b7f5d1db RM |
670 | case 'U': /* FALLTHROUGH */ |
671 | case 'V': /* We need to handle non interface options */ | |
fd05b7dc | 672 | break; |
03c2c879 RM |
673 | case 'b': |
674 | ifo->options |= DHCPCD_BACKGROUND; | |
675 | break; | |
fd05b7dc | 676 | case 'c': |
1681b126 RM |
677 | free(ifo->script); |
678 | ifo->script = strdup(arg); | |
679 | if (ifo->script == NULL) | |
680 | syslog(LOG_ERR, "%s: %m", __func__); | |
fd05b7dc | 681 | break; |
acb1cf88 RM |
682 | case 'd': |
683 | ifo->options |= DHCPCD_DEBUG; | |
684 | break; | |
6bfd88f1 RM |
685 | case 'e': |
686 | add_environ(ifo, arg, 1); | |
687 | break; | |
fd05b7dc | 688 | case 'h': |
cc3c3560 RM |
689 | if (!arg) { |
690 | ifo->options |= DHCPCD_HOSTNAME; | |
691 | break; | |
692 | } | |
693 | s = parse_string(ifo->hostname, HOSTNAME_MAX_LEN, arg); | |
694 | if (s == -1) { | |
695 | syslog(LOG_ERR, "hostname: %m"); | |
696 | return -1; | |
697 | } | |
698 | if (s != 0 && ifo->hostname[0] == '.') { | |
699 | syslog(LOG_ERR, "hostname cannot begin with ."); | |
700 | return -1; | |
fd05b7dc | 701 | } |
cc3c3560 | 702 | ifo->hostname[s] = '\0'; |
ed913a59 RM |
703 | if (ifo->hostname[0] == '\0') |
704 | ifo->options &= ~DHCPCD_HOSTNAME; | |
705 | else | |
706 | ifo->options |= DHCPCD_HOSTNAME; | |
fd05b7dc RM |
707 | break; |
708 | case 'i': | |
709 | if (arg) | |
710 | s = parse_string((char *)ifo->vendorclassid + 1, | |
eab2229c | 711 | VENDORCLASSID_MAX_LEN, arg); |
fd05b7dc RM |
712 | else |
713 | s = 0; | |
714 | if (s == -1) { | |
765fbf7d | 715 | syslog(LOG_ERR, "vendorclassid: %m"); |
fd05b7dc RM |
716 | return -1; |
717 | } | |
718 | *ifo->vendorclassid = (uint8_t)s; | |
719 | break; | |
2662d519 RM |
720 | case 'k': |
721 | ifo->options |= DHCPCD_RELEASE; | |
722 | break; | |
fd05b7dc RM |
723 | case 'l': |
724 | if (*arg == '-') { | |
765fbf7d | 725 | syslog(LOG_ERR, |
eab2229c | 726 | "leasetime must be a positive value"); |
fd05b7dc RM |
727 | return -1; |
728 | } | |
729 | errno = 0; | |
ebc9d360 | 730 | ifo->leasetime = (uint32_t)strtoul(arg, NULL, 0); |
fd05b7dc | 731 | if (errno == EINVAL || errno == ERANGE) { |
765fbf7d | 732 | syslog(LOG_ERR, "`%s' out of range", arg); |
fd05b7dc RM |
733 | return -1; |
734 | } | |
735 | break; | |
736 | case 'm': | |
737 | ifo->metric = atoint(arg); | |
738 | if (ifo->metric < 0) { | |
765fbf7d | 739 | syslog(LOG_ERR, "metric must be a positive value"); |
fd05b7dc RM |
740 | return -1; |
741 | } | |
742 | break; | |
743 | case 'o': | |
49b749f0 | 744 | arg = set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, |
ae4e592f | 745 | &request, &require, &no); |
49b749f0 RM |
746 | if (make_option_mask(d, dl, od, odl, request, arg, 1) != 0 || |
747 | make_option_mask(d, dl, od, odl, no, arg, -1) != 0) | |
ee56a47d | 748 | { |
765fbf7d | 749 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
750 | return -1; |
751 | } | |
752 | break; | |
753 | case 'p': | |
754 | ifo->options |= DHCPCD_PERSISTENT; | |
755 | break; | |
03c2c879 RM |
756 | case 'q': |
757 | ifo->options |= DHCPCD_QUIET; | |
758 | break; | |
2f7cb97c | 759 | case 'r': |
2f7cb97c RM |
760 | if (parse_addr(&ifo->req_addr, NULL, arg) != 0) |
761 | return -1; | |
5b39d8f5 | 762 | ifo->options |= DHCPCD_REQUEST; |
2f7cb97c RM |
763 | ifo->req_mask.s_addr = 0; |
764 | break; | |
fd05b7dc | 765 | case 's': |
d7555c12 RM |
766 | if (ifo->options & DHCPCD_IPV6 && |
767 | !(ifo->options & DHCPCD_IPV4)) | |
768 | { | |
769 | ifo->options |= DHCPCD_INFORM; | |
770 | break; | |
771 | } | |
2f7cb97c RM |
772 | if (arg && *arg != '\0') { |
773 | if (parse_addr(&ifo->req_addr, &ifo->req_mask, | |
eab2229c | 774 | arg) != 0) |
91a44b91 | 775 | return -1; |
2f7cb97c RM |
776 | } else { |
777 | ifo->req_addr.s_addr = 0; | |
778 | ifo->req_mask.s_addr = 0; | |
fd05b7dc | 779 | } |
5b39d8f5 RM |
780 | ifo->options |= DHCPCD_INFORM | DHCPCD_PERSISTENT; |
781 | ifo->options &= ~(DHCPCD_ARP | DHCPCD_STATIC); | |
91a44b91 | 782 | break; |
fd05b7dc RM |
783 | case 't': |
784 | ifo->timeout = atoint(arg); | |
785 | if (ifo->timeout < 0) { | |
a2a9a498 | 786 | syslog(LOG_ERR, "timeout must be a positive value"); |
fd05b7dc RM |
787 | return -1; |
788 | } | |
789 | break; | |
790 | case 'u': | |
791 | s = USERCLASS_MAX_LEN - ifo->userclass[0] - 1; | |
eab2229c | 792 | s = parse_string((char *)ifo->userclass + |
34457fe6 | 793 | ifo->userclass[0] + 2, (size_t)s, arg); |
fd05b7dc | 794 | if (s == -1) { |
765fbf7d | 795 | syslog(LOG_ERR, "userclass: %m"); |
fd05b7dc RM |
796 | return -1; |
797 | } | |
798 | if (s != 0) { | |
34457fe6 RM |
799 | ifo->userclass[ifo->userclass[0] + 1] = (uint8_t)s; |
800 | ifo->userclass[0] += (uint8_t)s + 1; | |
fd05b7dc RM |
801 | } |
802 | break; | |
803 | case 'v': | |
804 | p = strchr(arg, ','); | |
805 | if (!p || !p[1]) { | |
b357d09f | 806 | syslog(LOG_ERR, "invalid vendor format: %s", arg); |
fd05b7dc RM |
807 | return -1; |
808 | } | |
95d6dcfa RM |
809 | |
810 | /* If vendor starts with , then it is not encapsulated */ | |
811 | if (p == arg) { | |
812 | arg++; | |
813 | s = parse_string((char *)ifo->vendor + 1, | |
814 | VENDOR_MAX_LEN, arg); | |
815 | if (s == -1) { | |
816 | syslog(LOG_ERR, "vendor: %m"); | |
817 | return -1; | |
818 | } | |
819 | ifo->vendor[0] = (uint8_t)s; | |
820 | ifo->options |= DHCPCD_VENDORRAW; | |
821 | break; | |
822 | } | |
823 | ||
824 | /* Encapsulated vendor options */ | |
825 | if (ifo->options & DHCPCD_VENDORRAW) { | |
826 | ifo->options &= ~DHCPCD_VENDORRAW; | |
827 | ifo->vendor[0] = 0; | |
828 | } | |
829 | ||
b357d09f | 830 | /* No need to strip the comma */ |
fd05b7dc | 831 | i = atoint(arg); |
fd05b7dc | 832 | if (i < 1 || i > 254) { |
765fbf7d | 833 | syslog(LOG_ERR, "vendor option should be between" |
eab2229c | 834 | " 1 and 254 inclusive"); |
fd05b7dc RM |
835 | return -1; |
836 | } | |
b357d09f RM |
837 | |
838 | arg = p + 1; | |
fd05b7dc RM |
839 | s = VENDOR_MAX_LEN - ifo->vendor[0] - 2; |
840 | if (inet_aton(arg, &addr) == 1) { | |
841 | if (s < 6) { | |
842 | s = -1; | |
843 | errno = ENOBUFS; | |
aeddc61a | 844 | } else { |
fd05b7dc | 845 | memcpy(ifo->vendor + ifo->vendor[0] + 3, |
eab2229c | 846 | &addr.s_addr, sizeof(addr.s_addr)); |
aeddc61a RM |
847 | s = sizeof(addr.s_addr); |
848 | } | |
fd05b7dc | 849 | } else { |
eab2229c | 850 | s = parse_string((char *)ifo->vendor + |
34457fe6 | 851 | ifo->vendor[0] + 3, (size_t)s, arg); |
fd05b7dc RM |
852 | } |
853 | if (s == -1) { | |
765fbf7d | 854 | syslog(LOG_ERR, "vendor: %m"); |
fd05b7dc RM |
855 | return -1; |
856 | } | |
857 | if (s != 0) { | |
34457fe6 RM |
858 | ifo->vendor[ifo->vendor[0] + 1] = (uint8_t)i; |
859 | ifo->vendor[ifo->vendor[0] + 2] = (uint8_t)s; | |
860 | ifo->vendor[0] += (uint8_t)s + 2; | |
fd05b7dc RM |
861 | } |
862 | break; | |
2a07a2af RM |
863 | case 'w': |
864 | ifo->options |= DHCPCD_WAITIP; | |
7013b073 RM |
865 | if (arg != NULL && arg[0] != '\0') { |
866 | if (arg[0] == '4' || arg[1] == '4') | |
867 | ifo->options |= DHCPCD_WAITIP4; | |
868 | if (arg[0] == '6' || arg[1] == '6') | |
869 | ifo->options |= DHCPCD_WAITIP6; | |
870 | } | |
2a07a2af | 871 | break; |
a2a9a498 RM |
872 | case 'y': |
873 | ifo->reboot = atoint(arg); | |
874 | if (ifo->reboot < 0) { | |
875 | syslog(LOG_ERR, "reboot must be a positive value"); | |
876 | return -1; | |
877 | } | |
878 | break; | |
d3088c74 | 879 | case 'z': |
4eb7b489 RM |
880 | if (ifname == NULL) |
881 | ctx->ifav = splitv(&ctx->ifac, ctx->ifav, arg); | |
d3088c74 | 882 | break; |
fd05b7dc RM |
883 | case 'A': |
884 | ifo->options &= ~DHCPCD_ARP; | |
885 | /* IPv4LL requires ARP */ | |
886 | ifo->options &= ~DHCPCD_IPV4LL; | |
887 | break; | |
03c2c879 RM |
888 | case 'B': |
889 | ifo->options &= ~DHCPCD_DAEMONISE; | |
890 | break; | |
fd05b7dc RM |
891 | case 'C': |
892 | /* Commas to spaces for shell */ | |
893 | while ((p = strchr(arg, ','))) | |
894 | *p = ' '; | |
34457fe6 RM |
895 | dl = strlen("skip_hooks=") + strlen(arg) + 1; |
896 | p = malloc(sizeof(char) * dl); | |
28382337 RM |
897 | if (p == NULL) { |
898 | syslog(LOG_ERR, "%s: %m", __func__); | |
899 | return -1; | |
900 | } | |
34457fe6 | 901 | snprintf(p, dl, "skip_hooks=%s", arg); |
fd05b7dc RM |
902 | add_environ(ifo, p, 0); |
903 | free(p); | |
904 | break; | |
905 | case 'D': | |
c989b023 | 906 | ifo->options |= DHCPCD_CLIENTID | DHCPCD_DUID; |
fd05b7dc RM |
907 | break; |
908 | case 'E': | |
909 | ifo->options |= DHCPCD_LASTLEASE; | |
910 | break; | |
911 | case 'F': | |
912 | if (!arg) { | |
913 | ifo->fqdn = FQDN_BOTH; | |
914 | break; | |
915 | } | |
916 | if (strcmp(arg, "none") == 0) | |
917 | ifo->fqdn = FQDN_NONE; | |
918 | else if (strcmp(arg, "ptr") == 0) | |
919 | ifo->fqdn = FQDN_PTR; | |
920 | else if (strcmp(arg, "both") == 0) | |
921 | ifo->fqdn = FQDN_BOTH; | |
922 | else if (strcmp(arg, "disable") == 0) | |
923 | ifo->fqdn = FQDN_DISABLE; | |
924 | else { | |
765fbf7d | 925 | syslog(LOG_ERR, "invalid value `%s' for FQDN", arg); |
fd05b7dc RM |
926 | return -1; |
927 | } | |
928 | break; | |
929 | case 'G': | |
930 | ifo->options &= ~DHCPCD_GATEWAY; | |
931 | break; | |
4242c9b3 RM |
932 | case 'H': |
933 | ifo->options |= DHCPCD_XID_HWADDR; | |
934 | break; | |
fd05b7dc RM |
935 | case 'I': |
936 | /* Strings have a type of 0 */; | |
937 | ifo->clientid[1] = 0; | |
938 | if (arg) | |
939 | s = parse_string_hwaddr((char *)ifo->clientid + 1, | |
eab2229c | 940 | CLIENTID_MAX_LEN, arg, 1); |
fd05b7dc RM |
941 | else |
942 | s = 0; | |
943 | if (s == -1) { | |
765fbf7d | 944 | syslog(LOG_ERR, "clientid: %m"); |
fd05b7dc RM |
945 | return -1; |
946 | } | |
c989b023 | 947 | ifo->options |= DHCPCD_CLIENTID; |
fd05b7dc | 948 | ifo->clientid[0] = (uint8_t)s; |
fd05b7dc | 949 | break; |
900b3da4 RM |
950 | case 'J': |
951 | ifo->options |= DHCPCD_BROADCAST; | |
952 | break; | |
fd05b7dc RM |
953 | case 'K': |
954 | ifo->options &= ~DHCPCD_LINK; | |
955 | break; | |
956 | case 'L': | |
957 | ifo->options &= ~DHCPCD_IPV4LL; | |
958 | break; | |
b3174181 RM |
959 | case 'M': |
960 | ifo->options |= DHCPCD_MASTER; | |
961 | break; | |
fd05b7dc | 962 | case 'O': |
49b749f0 | 963 | arg = set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, |
ae4e592f | 964 | &request, &require, &no); |
49b749f0 RM |
965 | if (make_option_mask(d, dl, od, odl, request, arg, -1) != 0 || |
966 | make_option_mask(d, dl, od, odl, require, arg, -1) != 0 || | |
967 | make_option_mask(d, dl, od, odl, no, arg, 1) != 0) | |
fd05b7dc | 968 | { |
765fbf7d | 969 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
970 | return -1; |
971 | } | |
972 | break; | |
973 | case 'Q': | |
49b749f0 | 974 | arg = set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, |
ae4e592f | 975 | &request, &require, &no); |
49b749f0 RM |
976 | if (make_option_mask(d, dl, od, odl, require, arg, 1) != 0 || |
977 | make_option_mask(d, dl, od, odl, request, arg, 1) != 0 || | |
978 | make_option_mask(d, dl, od, odl, no, arg, -1) != 0) | |
fd05b7dc | 979 | { |
765fbf7d | 980 | syslog(LOG_ERR, "unknown option `%s'", arg); |
fd05b7dc RM |
981 | return -1; |
982 | } | |
983 | break; | |
91a44b91 RM |
984 | case 'S': |
985 | p = strchr(arg, '='); | |
986 | if (p == NULL) { | |
987 | syslog(LOG_ERR, "static assignment required"); | |
988 | return -1; | |
989 | } | |
990 | p++; | |
991 | if (strncmp(arg, "ip_address=", strlen("ip_address=")) == 0) { | |
776961cf RM |
992 | if (parse_addr(&ifo->req_addr, |
993 | ifo->req_mask.s_addr == 0 ? &ifo->req_mask : NULL, | |
994 | p) != 0) | |
91a44b91 RM |
995 | return -1; |
996 | ||
997 | ifo->options |= DHCPCD_STATIC; | |
fa8b2a7a | 998 | ifo->options &= ~DHCPCD_INFORM; |
776961cf RM |
999 | } else if (strncmp(arg, "subnet_mask=", strlen("subnet_mask=")) == 0) { |
1000 | if (parse_addr(&ifo->req_mask, NULL, p) != 0) | |
1001 | return -1; | |
91a44b91 | 1002 | } else if (strncmp(arg, "routes=", strlen("routes=")) == 0 || |
eab2229c RM |
1003 | strncmp(arg, "static_routes=", strlen("static_routes=")) == 0 || |
1004 | strncmp(arg, "classless_static_routes=", strlen("classless_static_routes=")) == 0 || | |
1005 | strncmp(arg, "ms_classless_static_routes=", strlen("ms_classless_static_routes=")) == 0) | |
91a44b91 | 1006 | { |
1cd05a96 | 1007 | fp = np = strwhite(p); |
91a44b91 RM |
1008 | if (np == NULL) { |
1009 | syslog(LOG_ERR, "all routes need a gateway"); | |
1010 | return -1; | |
1011 | } | |
1012 | *np++ = '\0'; | |
1cd05a96 | 1013 | np = strskipwhite(np); |
91a44b91 | 1014 | if (ifo->routes == NULL) { |
4c9c4b3e RM |
1015 | ifo->routes = malloc(sizeof(*ifo->routes)); |
1016 | if (ifo->routes == NULL) { | |
10e17e3f | 1017 | syslog(LOG_ERR, "%s: %m", __func__); |
10e17e3f RM |
1018 | return -1; |
1019 | } | |
673e81e5 | 1020 | TAILQ_INIT(ifo->routes); |
4c9c4b3e RM |
1021 | } |
1022 | rt = malloc(sizeof(*rt)); | |
1023 | if (rt == NULL) { | |
1024 | syslog(LOG_ERR, "%s: %m", __func__); | |
1025 | *fp = ' '; | |
1026 | return -1; | |
91a44b91 | 1027 | } |
91a44b91 RM |
1028 | if (parse_addr(&rt->dest, &rt->net, p) == -1 || |
1029 | parse_addr(&rt->gate, NULL, np) == -1) | |
332a5fe6 | 1030 | { |
4c9c4b3e | 1031 | free(rt); |
332a5fe6 | 1032 | *fp = ' '; |
91a44b91 | 1033 | return -1; |
332a5fe6 | 1034 | } |
4c9c4b3e | 1035 | TAILQ_INSERT_TAIL(ifo->routes, rt, next); |
332a5fe6 | 1036 | *fp = ' '; |
91a44b91 RM |
1037 | } else if (strncmp(arg, "routers=", strlen("routers=")) == 0) { |
1038 | if (ifo->routes == NULL) { | |
4c9c4b3e RM |
1039 | ifo->routes = malloc(sizeof(*ifo->routes)); |
1040 | if (ifo->routes == NULL) { | |
10e17e3f RM |
1041 | syslog(LOG_ERR, "%s: %m", __func__); |
1042 | return -1; | |
1043 | } | |
00ababe4 | 1044 | TAILQ_INIT(ifo->routes); |
4c9c4b3e RM |
1045 | } |
1046 | rt = malloc(sizeof(*rt)); | |
1047 | if (rt == NULL) { | |
1048 | syslog(LOG_ERR, "%s: %m", __func__); | |
1049 | return -1; | |
91a44b91 | 1050 | } |
1abffd5b RM |
1051 | rt->dest.s_addr = INADDR_ANY; |
1052 | rt->net.s_addr = INADDR_ANY; | |
4c9c4b3e RM |
1053 | if (parse_addr(&rt->gate, NULL, p) == -1) { |
1054 | free(rt); | |
91a44b91 | 1055 | return -1; |
4c9c4b3e RM |
1056 | } |
1057 | TAILQ_INSERT_TAIL(ifo->routes, rt, next); | |
91a44b91 | 1058 | } else { |
34457fe6 | 1059 | dl = 0; |
91a44b91 | 1060 | if (ifo->config != NULL) { |
34457fe6 RM |
1061 | while (ifo->config[dl] != NULL) { |
1062 | if (strncmp(ifo->config[dl], arg, | |
1063 | (size_t)(p - arg)) == 0) | |
eab2229c | 1064 | { |
78369646 RM |
1065 | p = strdup(arg); |
1066 | if (p == NULL) { | |
1067 | syslog(LOG_ERR, | |
1068 | "%s: %m", __func__); | |
1069 | return -1; | |
1070 | } | |
34457fe6 RM |
1071 | free(ifo->config[dl]); |
1072 | ifo->config[dl] = p; | |
91a44b91 RM |
1073 | return 1; |
1074 | } | |
34457fe6 | 1075 | dl++; |
91a44b91 RM |
1076 | } |
1077 | } | |
78369646 | 1078 | p = strdup(arg); |
fa245a4d RM |
1079 | if (p == NULL) { |
1080 | syslog(LOG_ERR, "%s: %m", __func__); | |
1081 | return -1; | |
1082 | } | |
34457fe6 | 1083 | nconf = realloc(ifo->config, sizeof(char *) * (dl + 2)); |
78369646 RM |
1084 | if (nconf == NULL) { |
1085 | syslog(LOG_ERR, "%s: %m", __func__); | |
1086 | return -1; | |
1087 | } | |
fa245a4d | 1088 | ifo->config = nconf; |
34457fe6 RM |
1089 | ifo->config[dl] = p; |
1090 | ifo->config[dl + 1] = NULL; | |
91a44b91 RM |
1091 | } |
1092 | break; | |
bf80d526 RM |
1093 | case 'W': |
1094 | if (parse_addr(&addr, &addr2, arg) != 0) | |
1095 | return -1; | |
1096 | if (strchr(arg, '/') == NULL) | |
1097 | addr2.s_addr = INADDR_BROADCAST; | |
fa245a4d | 1098 | naddr = realloc(ifo->whitelist, |
bf80d526 | 1099 | sizeof(in_addr_t) * (ifo->whitelist_len + 2)); |
fa245a4d RM |
1100 | if (naddr == NULL) { |
1101 | syslog(LOG_ERR, "%s: %m", __func__); | |
1102 | return -1; | |
1103 | } | |
1104 | ifo->whitelist = naddr; | |
bf80d526 RM |
1105 | ifo->whitelist[ifo->whitelist_len++] = addr.s_addr; |
1106 | ifo->whitelist[ifo->whitelist_len++] = addr2.s_addr; | |
1107 | break; | |
fd05b7dc | 1108 | case 'X': |
e095a6eb | 1109 | if (parse_addr(&addr, &addr2, arg) != 0) |
fd05b7dc | 1110 | return -1; |
ce6b39df RM |
1111 | if (strchr(arg, '/') == NULL) |
1112 | addr2.s_addr = INADDR_BROADCAST; | |
fa245a4d | 1113 | naddr = realloc(ifo->blacklist, |
e095a6eb | 1114 | sizeof(in_addr_t) * (ifo->blacklist_len + 2)); |
fa245a4d RM |
1115 | if (naddr == NULL) { |
1116 | syslog(LOG_ERR, "%s: %m", __func__); | |
1117 | return -1; | |
1118 | } | |
1119 | ifo->blacklist = naddr; | |
e095a6eb RM |
1120 | ifo->blacklist[ifo->blacklist_len++] = addr.s_addr; |
1121 | ifo->blacklist[ifo->blacklist_len++] = addr2.s_addr; | |
fd05b7dc | 1122 | break; |
d3088c74 | 1123 | case 'Z': |
4eb7b489 RM |
1124 | if (ifname == NULL) |
1125 | ctx->ifdv = splitv(&ctx->ifdc, ctx->ifdv, arg); | |
d3088c74 | 1126 | break; |
d7555c12 | 1127 | case '4': |
2f0addfd | 1128 | ifo->options &= ~DHCPCD_IPV6; |
d7555c12 RM |
1129 | ifo->options |= DHCPCD_IPV4; |
1130 | break; | |
1131 | case '6': | |
1132 | ifo->options &= ~DHCPCD_IPV4; | |
2f0addfd | 1133 | ifo->options |= DHCPCD_IPV6; |
d7555c12 | 1134 | break; |
94bec972 RM |
1135 | case O_IPV4: |
1136 | ifo->options |= DHCPCD_IPV4; | |
1137 | break; | |
bb8051bf RM |
1138 | case O_NOIPV4: |
1139 | ifo->options &= ~DHCPCD_IPV4; | |
1140 | break; | |
94bec972 RM |
1141 | case O_IPV6: |
1142 | ifo->options |= DHCPCD_IPV6; | |
1143 | break; | |
bb8051bf RM |
1144 | case O_NOIPV6: |
1145 | ifo->options &= ~DHCPCD_IPV6; | |
1146 | break; | |
aae24feb | 1147 | #ifdef INET |
4ca7460f | 1148 | case O_ARPING: |
48ac077b RM |
1149 | while (arg && *arg != '\0') { |
1150 | fp = strwhite(arg); | |
1151 | if (fp) | |
1152 | *fp++ = '\0'; | |
1153 | if (parse_addr(&addr, NULL, arg) != 0) | |
1154 | return -1; | |
1155 | naddr = realloc(ifo->arping, | |
1156 | sizeof(in_addr_t) * (ifo->arping_len + 1)); | |
1157 | if (naddr == NULL) { | |
1158 | syslog(LOG_ERR, "%s: %m", __func__); | |
1159 | return -1; | |
1160 | } | |
1161 | ifo->arping = naddr; | |
1162 | ifo->arping[ifo->arping_len++] = addr.s_addr; | |
4dd50184 | 1163 | arg = strskipwhite(fp); |
fa245a4d | 1164 | } |
4ca7460f | 1165 | break; |
41c60e02 | 1166 | case O_DESTINATION: |
49b749f0 RM |
1167 | arg = set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, |
1168 | &request, &require, &no); | |
1169 | if (make_option_mask(d, dl, od, odl, | |
1170 | ifo->dstmask, arg, 2) != 0) | |
1171 | { | |
41c60e02 RM |
1172 | if (errno == EINVAL) |
1173 | syslog(LOG_ERR, "option `%s' does not take" | |
1174 | " an IPv4 address", arg); | |
1175 | else | |
1176 | syslog(LOG_ERR, "unknown option `%s'", arg); | |
1177 | return -1; | |
1178 | } | |
1179 | break; | |
ff021b0b RM |
1180 | case O_FALLBACK: |
1181 | free(ifo->fallback); | |
78369646 RM |
1182 | ifo->fallback = strdup(arg); |
1183 | if (ifo->fallback == NULL) { | |
1184 | syslog(LOG_ERR, "%s: %m", __func__); | |
00ababe4 | 1185 | return -1; |
78369646 | 1186 | } |
ff021b0b | 1187 | break; |
aae24feb | 1188 | #endif |
ebc9d360 | 1189 | case O_IAID: |
9ff636a5 RM |
1190 | if (ifname == NULL) { |
1191 | syslog(LOG_ERR, | |
1192 | "IAID must belong in an interface block"); | |
1193 | return -1; | |
1194 | } | |
ebc9d360 RM |
1195 | if (parse_iaid(ifo->iaid, arg, sizeof(ifo->iaid)) == -1) |
1196 | return -1; | |
1197 | ifo->options |= DHCPCD_IAID; | |
563a421c | 1198 | break; |
eebe9a18 RM |
1199 | case O_IPV6RS: |
1200 | ifo->options |= DHCPCD_IPV6RS; | |
1201 | break; | |
91cd7324 | 1202 | case O_NOIPV6RS: |
61dd6cf9 RM |
1203 | ifo->options &= ~DHCPCD_IPV6RS; |
1204 | break; | |
eebe9a18 | 1205 | case O_IPV6RA_FORK: |
61dd6cf9 | 1206 | ifo->options &= ~DHCPCD_IPV6RA_REQRDNSS; |
91cd7324 | 1207 | break; |
eebe9a18 RM |
1208 | case O_IPV6RA_OWN: |
1209 | ifo->options |= DHCPCD_IPV6RA_OWN; | |
1210 | break; | |
1211 | case O_IPV6RA_OWN_D: | |
1212 | ifo->options |= DHCPCD_IPV6RA_OWN_DEFAULT; | |
1213 | break; | |
7dab081f RM |
1214 | case O_NOALIAS: |
1215 | ifo->options |= DHCPCD_NOALIAS; | |
1216 | break; | |
00ababe4 RM |
1217 | #ifdef INET6 |
1218 | case O_IA_NA: | |
1219 | i = D6_OPTION_IA_NA; | |
1220 | /* FALLTHROUGH */ | |
1221 | case O_IA_TA: | |
1222 | if (i == 0) | |
1223 | i = D6_OPTION_IA_TA; | |
1224 | /* FALLTHROUGH */ | |
1225 | case O_IA_PD: | |
9ff636a5 RM |
1226 | if (i == 0) { |
1227 | if (ifname == NULL) { | |
1228 | syslog(LOG_ERR, | |
1229 | "IA PD must belong in an interface block"); | |
1230 | return -1; | |
1231 | } | |
00ababe4 | 1232 | i = D6_OPTION_IA_PD; |
9ff636a5 | 1233 | } |
b0ca9ae9 | 1234 | if (ifname == NULL && arg) { |
9ff636a5 RM |
1235 | syslog(LOG_ERR, |
1236 | "IA with IAID must belong in an interface block"); | |
1237 | return -1; | |
1238 | } | |
00ababe4 | 1239 | ifo->options |= DHCPCD_IA_FORCED; |
52bcdc34 RM |
1240 | fp = strwhite(arg); |
1241 | if (fp) { | |
1242 | *fp++ = '\0'; | |
1243 | fp = strskipwhite(fp); | |
1244 | } | |
b0ca9ae9 | 1245 | if (arg) { |
b0ca9ae9 RM |
1246 | p = strchr(arg, '/'); |
1247 | if (p) | |
1248 | *p++ = '\0'; | |
1249 | if (parse_iaid(iaid, arg, sizeof(iaid)) == -1) | |
1250 | return -1; | |
52bcdc34 | 1251 | } |
ebc9d360 RM |
1252 | ia = NULL; |
1253 | for (sl = 0; sl < ifo->ia_len; sl++) { | |
52bcdc34 | 1254 | if ((arg == NULL && !ifo->ia[sl].iaid_set) || |
8371b540 RM |
1255 | (ifo->ia[sl].iaid_set && |
1256 | ifo->ia[sl].iaid[0] == iaid[0] && | |
ebc9d360 RM |
1257 | ifo->ia[sl].iaid[1] == iaid[1] && |
1258 | ifo->ia[sl].iaid[2] == iaid[2] && | |
b0ca9ae9 | 1259 | ifo->ia[sl].iaid[3] == iaid[3])) |
00ababe4 | 1260 | { |
ebc9d360 | 1261 | ia = &ifo->ia[sl]; |
00ababe4 RM |
1262 | break; |
1263 | } | |
1264 | } | |
b0ca9ae9 RM |
1265 | if (ia && ia->ia_type != (uint16_t)i) { |
1266 | syslog(LOG_ERR, "Cannot mix IA for the same IAID"); | |
1267 | break; | |
1268 | } | |
ebc9d360 RM |
1269 | if (ia == NULL) { |
1270 | ia = realloc(ifo->ia, | |
1271 | sizeof(*ifo->ia) * (ifo->ia_len + 1)); | |
1272 | if (ia == NULL) { | |
00ababe4 RM |
1273 | syslog(LOG_ERR, "%s: %m", __func__); |
1274 | return -1; | |
1275 | } | |
ebc9d360 RM |
1276 | ifo->ia = ia; |
1277 | ia = &ifo->ia[ifo->ia_len++]; | |
b0ca9ae9 | 1278 | ia->ia_type = (uint16_t)i; |
52bcdc34 | 1279 | if (arg) { |
b0ca9ae9 RM |
1280 | ia->iaid[0] = iaid[0]; |
1281 | ia->iaid[1] = iaid[1]; | |
1282 | ia->iaid[2] = iaid[2]; | |
1283 | ia->iaid[3] = iaid[3]; | |
1284 | ia->iaid_set = 1; | |
1285 | } else | |
1286 | ia->iaid_set = 0; | |
1287 | if (!ia->iaid_set || | |
1288 | p == NULL || | |
1289 | ia->ia_type == D6_OPTION_IA_TA) | |
1290 | { | |
4f94ed51 RM |
1291 | memset(&ia->addr, 0, sizeof(ia->addr)); |
1292 | ia->prefix_len = 0; | |
1293 | } else { | |
1294 | arg = p; | |
1295 | p = strchr(arg, '/'); | |
1296 | if (p) | |
1297 | *p++ = '\0'; | |
1298 | if (inet_pton(AF_INET6, arg, &ia->addr) == -1) { | |
1299 | syslog(LOG_ERR, "%s: %m", arg); | |
1300 | memset(&ia->addr, 0, sizeof(ia->addr)); | |
1301 | } | |
b0ca9ae9 | 1302 | if (p && ia->ia_type == D6_OPTION_IA_PD) { |
4f94ed51 RM |
1303 | i = atoint(p); |
1304 | if (i != -1 && (i < 8 || i > 120)) { | |
1305 | errno = EINVAL; | |
1306 | i = -1; | |
1307 | } | |
1308 | if (i == -1) { | |
1309 | syslog(LOG_ERR, "%s: %m", p); | |
1310 | ia->prefix_len = 0; | |
1311 | } else | |
1312 | ia->prefix_len = (uint8_t)i; | |
1313 | } | |
1314 | } | |
e69793ff | 1315 | ia->sla_max = 0; |
ebc9d360 | 1316 | ia->sla_len = 0; |
4f94ed51 | 1317 | ia->sla = NULL; |
00ababe4 | 1318 | } |
b0ca9ae9 | 1319 | if (ia->ia_type != D6_OPTION_IA_PD) |
7cece083 | 1320 | break; |
00ababe4 | 1321 | for (p = fp; p; p = fp) { |
1cd05a96 RM |
1322 | fp = strwhite(p); |
1323 | if (fp) { | |
00ababe4 | 1324 | *fp++ = '\0'; |
1cd05a96 RM |
1325 | fp = strskipwhite(fp); |
1326 | } | |
ebc9d360 RM |
1327 | sla = realloc(ia->sla, |
1328 | sizeof(*ia->sla) * (ia->sla_len + 1)); | |
00ababe4 RM |
1329 | if (sla == NULL) { |
1330 | syslog(LOG_ERR, "%s: %m", __func__); | |
1331 | return -1; | |
1332 | } | |
ebc9d360 RM |
1333 | ia->sla = sla; |
1334 | sla = &ia->sla[ia->sla_len++]; | |
00ababe4 RM |
1335 | np = strchr(p, '/'); |
1336 | if (np) | |
1337 | *np++ = '\0'; | |
00ababe4 RM |
1338 | if (strlcpy(sla->ifname, p, |
1339 | sizeof(sla->ifname)) >= sizeof(sla->ifname)) | |
1340 | { | |
1341 | syslog(LOG_ERR, "%s: interface name too long", | |
1342 | arg); | |
94a79cea | 1343 | goto err_sla; |
00ababe4 RM |
1344 | } |
1345 | p = np; | |
367f7b11 RM |
1346 | if (p) { |
1347 | np = strchr(p, '/'); | |
1348 | if (np) | |
1349 | *np++ = '\0'; | |
83919266 RM |
1350 | if (*p == '\0') |
1351 | sla->sla_set = 0; | |
1352 | else { | |
1353 | errno = 0; | |
34457fe6 RM |
1354 | i = atoint(p); |
1355 | if (i == -1) | |
1356 | goto err_sla; | |
1357 | sla->sla = (uint32_t)i; | |
94a79cea RM |
1358 | if (sla->sla == 0 && ia->sla_len > 1) { |
1359 | syslog(LOG_ERR, "%s: cannot" | |
1360 | " assign multiple prefixes" | |
1361 | " with a SLA of 0", | |
1362 | ifname); | |
1363 | goto err_sla; | |
1364 | } | |
83919266 RM |
1365 | sla->sla_set = 1; |
1366 | if (errno) | |
94a79cea | 1367 | goto err_sla; |
83919266 | 1368 | } |
367f7b11 | 1369 | if (np) { |
34457fe6 RM |
1370 | i = atoint(np); |
1371 | if (i < 0 || i > 128) | |
94a79cea | 1372 | goto err_sla; |
34457fe6 | 1373 | sla->prefix_len = (uint8_t)i; |
367f7b11 | 1374 | } else |
e69793ff | 1375 | sla->prefix_len = 0; |
5985c4e2 RM |
1376 | } else { |
1377 | sla->sla_set = 0; | |
e69793ff RM |
1378 | sla->prefix_len = 0; |
1379 | } | |
1380 | /* Sanity check */ | |
1381 | for (sl = 0; sl < ia->sla_len - 1; sl++) { | |
1382 | slap = &ia->sla[sl]; | |
1383 | if (slap->sla_set && sla->sla_set == 0) { | |
1384 | syslog(LOG_WARNING, | |
1385 | "%s: cannot mix automatic " | |
1386 | "and fixed SLA", | |
1387 | sla->ifname); | |
1388 | goto err_sla; | |
1389 | } | |
1390 | if (sla->sla_set == 0 && | |
1391 | strcmp(slap->ifname, sla->ifname) == 0) | |
1392 | { | |
1393 | syslog(LOG_WARNING, | |
1394 | "%s: cannot specify the " | |
1395 | "same interface twice with " | |
1396 | "an automatic SLA", | |
1397 | sla->ifname); | |
1398 | goto err_sla; | |
5985c4e2 | 1399 | } |
367f7b11 | 1400 | } |
e69793ff RM |
1401 | if (sla->sla_set && sla->sla > ia->sla_max) |
1402 | ia->sla_max = sla->sla; | |
00ababe4 | 1403 | } |
ebc9d360 | 1404 | break; |
94a79cea RM |
1405 | err_sla: |
1406 | ia->sla_len--; | |
1407 | return -1; | |
1408 | #endif | |
d6a18654 | 1409 | case O_HOSTNAME_SHORT: |
9c54b11b | 1410 | ifo->options |= DHCPCD_HOSTNAME | DHCPCD_HOSTNAME_SHORT; |
d6a18654 | 1411 | break; |
413652c1 | 1412 | case O_DEV: |
4eb7b489 RM |
1413 | #ifdef PLUGIN_DEV |
1414 | if (ctx->dev_load) | |
1415 | free(ctx->dev_load); | |
1416 | ctx->dev_load = strdup(arg); | |
1417 | #endif | |
413652c1 RM |
1418 | break; |
1419 | case O_NODEV: | |
1420 | ifo->options &= ~DHCPCD_DEV; | |
1421 | break; | |
8e7d8c37 RM |
1422 | case O_DEFINE: |
1423 | dop = &ifo->dhcp_override; | |
1424 | dop_len = &ifo->dhcp_override_len; | |
1425 | /* FALLTHROUGH */ | |
1426 | case O_DEFINE6: | |
1427 | if (dop == NULL) { | |
1428 | dop = &ifo->dhcp6_override; | |
1429 | dop_len = &ifo->dhcp6_override_len; | |
1430 | } | |
7a911e57 RM |
1431 | /* FALLTHROUGH */ |
1432 | case O_VENDOPT: | |
1433 | if (dop == NULL) { | |
1434 | dop = &ifo->vivso_override; | |
1435 | dop_len = &ifo->vivso_override_len; | |
1436 | } | |
4eb7b489 | 1437 | *edop = *ldop = NULL; |
8e7d8c37 RM |
1438 | /* FALLTHROUGH */ |
1439 | case O_EMBED: | |
1440 | if (dop == NULL) { | |
4eb7b489 RM |
1441 | if (*edop) { |
1442 | dop = &(*edop)->embopts; | |
1443 | dop_len = &(*edop)->embopts_len; | |
03476881 | 1444 | } else if (ldop) { |
4eb7b489 RM |
1445 | dop = &(*ldop)->embopts; |
1446 | dop_len = &(*ldop)->embopts_len; | |
03476881 RM |
1447 | } else { |
1448 | syslog(LOG_ERR, | |
1449 | "embed must be after a define or encap"); | |
8e7d8c37 RM |
1450 | return -1; |
1451 | } | |
8e7d8c37 | 1452 | } |
03476881 | 1453 | /* FALLTHROUGH */ |
8e7d8c37 RM |
1454 | case O_ENCAP: |
1455 | if (dop == NULL) { | |
4eb7b489 | 1456 | if (*ldop == NULL) { |
8e7d8c37 RM |
1457 | syslog(LOG_ERR, "encap must be after a define"); |
1458 | return -1; | |
1459 | } | |
4eb7b489 RM |
1460 | dop = &(*ldop)->encopts; |
1461 | dop_len = &(*ldop)->encopts_len; | |
8e7d8c37 RM |
1462 | } |
1463 | ||
1464 | /* Shared code for define, define6, embed and encap */ | |
1465 | ||
1466 | /* code */ | |
1467 | if (opt == O_EMBED) /* Embedded options don't have codes */ | |
7a911e57 | 1468 | u = 0; |
8e7d8c37 | 1469 | else { |
1cd05a96 | 1470 | fp = strwhite(arg); |
4dd50184 | 1471 | if (fp == NULL) { |
8e7d8c37 RM |
1472 | syslog(LOG_ERR, "invalid syntax: %s", arg); |
1473 | return -1; | |
1474 | } | |
1475 | *fp++ = '\0'; | |
7a911e57 RM |
1476 | errno = 0; |
1477 | u = strtoul(arg, &np, 0); | |
1478 | if (u > UINT32_MAX || errno != 0 || *np != '\0') { | |
1479 | syslog(LOG_ERR, "invalid code: %s", arg); | |
8e7d8c37 | 1480 | return -1; |
7a911e57 | 1481 | } |
1cd05a96 | 1482 | arg = strskipwhite(fp); |
4dd50184 RM |
1483 | if (arg == NULL) { |
1484 | syslog(LOG_ERR, "invalid syntax"); | |
1485 | return -1; | |
1486 | } | |
8e7d8c37 RM |
1487 | } |
1488 | /* type */ | |
1cd05a96 | 1489 | fp = strwhite(arg); |
ab371aa6 | 1490 | if (fp) |
1cd05a96 | 1491 | *fp++ = '\0'; |
b21cd906 RM |
1492 | np = strchr(arg, ':'); |
1493 | /* length */ | |
1494 | if (np) { | |
1495 | *np++ = '\0'; | |
1496 | if ((l = atoint(np)) == -1) | |
1497 | return -1; | |
1498 | } else | |
1499 | l = 0; | |
1cd05a96 RM |
1500 | t = 0; |
1501 | if (strcasecmp(arg, "request") == 0) { | |
1502 | t |= REQUEST; | |
1503 | arg = strskipwhite(fp); | |
1504 | fp = strwhite(arg); | |
1505 | if (fp == NULL) { | |
1506 | syslog(LOG_ERR, "incomplete request type"); | |
1507 | return -1; | |
1508 | } | |
1509 | *fp++ = '\0'; | |
1510 | } else if (strcasecmp(arg, "norequest") == 0) { | |
1511 | t |= NOREQ; | |
1512 | arg = strskipwhite(fp); | |
1513 | fp = strwhite(arg); | |
1514 | if (fp == NULL) { | |
1515 | syslog(LOG_ERR, "incomplete request type"); | |
1516 | return -1; | |
1517 | } | |
8e7d8c37 | 1518 | *fp++ = '\0'; |
1cd05a96 | 1519 | } |
03476881 RM |
1520 | if (strcasecmp(arg, "index") == 0) { |
1521 | t |= INDEX; | |
1522 | arg = strskipwhite(fp); | |
1523 | fp = strwhite(arg); | |
1524 | if (fp == NULL) { | |
1525 | syslog(LOG_ERR, "incomplete index type"); | |
1526 | return -1; | |
1527 | } | |
1528 | *fp++ = '\0'; | |
1529 | } | |
1cd05a96 RM |
1530 | if (strcasecmp(arg, "array") == 0) { |
1531 | t |= ARRAY; | |
1532 | arg = strskipwhite(fp); | |
1533 | fp = strwhite(arg); | |
1534 | if (fp == NULL) { | |
1535 | syslog(LOG_ERR, "incomplete array type"); | |
1536 | return -1; | |
1537 | } | |
1538 | *fp++ = '\0'; | |
1539 | } | |
8e7d8c37 | 1540 | if (strcasecmp(arg, "ipaddress") == 0) |
1cd05a96 | 1541 | t |= ADDRIPV4; |
8e7d8c37 | 1542 | else if (strcasecmp(arg, "ip6address") == 0) |
1cd05a96 | 1543 | t |= ADDRIPV6; |
8e7d8c37 | 1544 | else if (strcasecmp(arg, "string") == 0) |
1cd05a96 | 1545 | t |= STRING; |
8e7d8c37 | 1546 | else if (strcasecmp(arg, "byte") == 0) |
1cd05a96 | 1547 | t |= UINT8; |
8e7d8c37 | 1548 | else if (strcasecmp(arg, "uint16") == 0) |
1cd05a96 | 1549 | t |= UINT16; |
8e7d8c37 | 1550 | else if (strcasecmp(arg, "int16") == 0) |
1cd05a96 | 1551 | t |= SINT16; |
8e7d8c37 | 1552 | else if (strcasecmp(arg, "uint32") == 0) |
1cd05a96 | 1553 | t |= UINT32; |
8e7d8c37 | 1554 | else if (strcasecmp(arg, "int32") == 0) |
1cd05a96 RM |
1555 | t |= SINT32; |
1556 | else if (strcasecmp(arg, "flag") == 0) | |
1557 | t |= FLAG; | |
8f008ca7 RM |
1558 | else if (strcasecmp(arg, "raw") == 0) |
1559 | t |= STRING | RAW; | |
1560 | else if (strcasecmp(arg, "ascii") == 0) | |
1561 | t |= STRING | ASCII; | |
8e7d8c37 | 1562 | else if (strcasecmp(arg, "domain") == 0) |
8f008ca7 RM |
1563 | t |= STRING | DOMAIN | RFC3397; |
1564 | else if (strcasecmp(arg, "dname") == 0) | |
1565 | t |= STRING | DOMAIN; | |
8e7d8c37 | 1566 | else if (strcasecmp(arg, "binhex") == 0) |
8f008ca7 | 1567 | t |= STRING | BINHEX; |
8e7d8c37 | 1568 | else if (strcasecmp(arg, "embed") == 0) |
03476881 | 1569 | t |= EMBED; |
8e7d8c37 | 1570 | else if (strcasecmp(arg, "encap") == 0) |
03476881 | 1571 | t |= ENCAP; |
1cd05a96 | 1572 | else if (strcasecmp(arg, "rfc3361") ==0) |
03476881 | 1573 | t |= STRING | RFC3361; |
dfee59d2 | 1574 | else if (strcasecmp(arg, "rfc3442") ==0) |
03476881 | 1575 | t |= STRING | RFC3442; |
1cd05a96 | 1576 | else if (strcasecmp(arg, "rfc5969") == 0) |
03476881 RM |
1577 | t |= STRING | RFC5969; |
1578 | else if (strcasecmp(arg, "option") == 0) | |
1579 | t |= OPTION; | |
8e7d8c37 RM |
1580 | else { |
1581 | syslog(LOG_ERR, "unknown type: %s", arg); | |
1582 | return -1; | |
1583 | } | |
b21cd906 RM |
1584 | if (l && !(t & (STRING | BINHEX))) { |
1585 | syslog(LOG_WARNING, | |
1586 | "ignoring length for type `%s'", arg); | |
1587 | l = 0; | |
1588 | } | |
8f008ca7 RM |
1589 | if (t & ARRAY && t & (STRING | BINHEX) && |
1590 | !(t & (RFC3397 | DOMAIN))) | |
1591 | { | |
63bdd2c2 RM |
1592 | syslog(LOG_WARNING, "ignoring array for strings"); |
1593 | t &= ~ARRAY; | |
1594 | } | |
8e7d8c37 | 1595 | /* variable */ |
d9fbb118 | 1596 | if (!fp) { |
03476881 RM |
1597 | if (!(t & OPTION)) { |
1598 | syslog(LOG_ERR, | |
1599 | "type %s requires a variable name", arg); | |
1600 | return -1; | |
1601 | } | |
1602 | np = NULL; | |
1603 | } else { | |
1604 | arg = strskipwhite(fp); | |
1605 | fp = strwhite(arg); | |
1606 | if (fp) | |
1607 | *fp++ = '\0'; | |
1608 | np = strdup(arg); | |
1609 | if (np == NULL) { | |
1610 | syslog(LOG_ERR, "%s: %m", __func__); | |
1611 | return -1; | |
1612 | } | |
8e7d8c37 | 1613 | } |
6714b786 | 1614 | if (opt != O_EMBED) { |
f132acc3 RM |
1615 | for (dl = 0, ndop = *dop; dl < *dop_len; dl++, ndop++) |
1616 | { | |
1cd05a96 RM |
1617 | /* type 0 seems freshly malloced struct |
1618 | * for us to use */ | |
7a911e57 | 1619 | if (ndop->option == u || ndop->type == 0) |
8e7d8c37 RM |
1620 | break; |
1621 | } | |
f132acc3 RM |
1622 | if (dl == *dop_len) |
1623 | ndop = NULL; | |
1624 | } else | |
1625 | ndop = NULL; | |
6714b786 | 1626 | if (ndop == NULL) { |
8e7d8c37 | 1627 | if ((ndop = realloc(*dop, |
f132acc3 RM |
1628 | sizeof(**dop) * ((*dop_len) + 1))) == NULL) |
1629 | { | |
8e7d8c37 | 1630 | syslog(LOG_ERR, "%s: %m", __func__); |
8fc52ced | 1631 | free(np); |
8e7d8c37 RM |
1632 | return -1; |
1633 | } | |
1634 | *dop = ndop; | |
1635 | ndop = &(*dop)[(*dop_len)++]; | |
8e7d8c37 RM |
1636 | ndop->embopts = NULL; |
1637 | ndop->embopts_len = 0; | |
1638 | ndop->encopts = NULL; | |
1639 | ndop->encopts_len = 0; | |
1640 | } else | |
1641 | free_dhcp_opt_embenc(ndop); | |
76bb4d03 | 1642 | ndop->option = (uint32_t)u; /* could have been 0 */ |
8e7d8c37 | 1643 | ndop->type = t; |
34457fe6 | 1644 | ndop->len = (size_t)l; |
bc22d277 | 1645 | ndop->var = np; |
8e7d8c37 | 1646 | /* Save the define for embed and encap options */ |
7a911e57 | 1647 | if (opt == O_DEFINE || opt == O_DEFINE6 || opt == O_VENDOPT) |
4eb7b489 | 1648 | *ldop = ndop; |
03476881 | 1649 | else if (opt == O_ENCAP) |
4eb7b489 | 1650 | *edop = ndop; |
8e7d8c37 | 1651 | break; |
7a911e57 RM |
1652 | case O_VENDCLASS: |
1653 | fp = strwhite(arg); | |
1654 | if (fp) | |
1655 | *fp++ = '\0'; | |
1656 | errno = 0; | |
1657 | u = strtoul(arg, &np, 0); | |
1658 | if (u > UINT32_MAX || errno != 0 || *np != '\0') { | |
1659 | syslog(LOG_ERR, "invalid code: %s", arg); | |
1660 | return -1; | |
1661 | } | |
1662 | if (fp) { | |
1663 | s = parse_string(NULL, 0, fp); | |
1664 | if (s == -1) { | |
1665 | syslog(LOG_ERR, "%s: %m", __func__); | |
1666 | return -1; | |
1667 | } | |
34457fe6 RM |
1668 | dl = (size_t)s; |
1669 | if (dl + (sizeof(uint16_t) * 2) > UINT16_MAX) { | |
7a911e57 RM |
1670 | syslog(LOG_ERR, "vendor class is too big"); |
1671 | return -1; | |
1672 | } | |
34457fe6 | 1673 | np = malloc(dl); |
7a911e57 RM |
1674 | if (np == NULL) { |
1675 | syslog(LOG_ERR, "%s: %m", __func__); | |
1676 | return -1; | |
1677 | } | |
34457fe6 | 1678 | parse_string(np, dl, fp); |
7a911e57 | 1679 | } else { |
34457fe6 | 1680 | dl = 0; |
7a911e57 RM |
1681 | np = NULL; |
1682 | } | |
900b6f94 RM |
1683 | vivco = realloc(ifo->vivco, sizeof(*ifo->vivco) * |
1684 | (ifo->vivco_len + 1)); | |
7a911e57 RM |
1685 | if (vivco == NULL) { |
1686 | syslog(LOG_ERR, "%s: %m", __func__); | |
1687 | return -1; | |
1688 | } | |
1689 | ifo->vivco = vivco; | |
76bb4d03 | 1690 | ifo->vivco_en = (uint32_t)u; |
7a911e57 | 1691 | vivco = &ifo->vivco[ifo->vivco_len++]; |
34457fe6 | 1692 | vivco->len = dl; |
7a911e57 RM |
1693 | vivco->data = (uint8_t *)np; |
1694 | break; | |
c73ed171 RM |
1695 | case O_AUTHPROTOCOL: |
1696 | fp = strwhite(arg); | |
1697 | if (fp) | |
1698 | *fp++ = '\0'; | |
1699 | if (strcasecmp(arg, "token") == 0) | |
1700 | ifo->auth.protocol = AUTH_PROTO_TOKEN; | |
1701 | else if (strcasecmp(arg, "delayed") == 0) | |
1702 | ifo->auth.protocol = AUTH_PROTO_DELAYED; | |
1703 | else if (strcasecmp(arg, "delayedrealm") == 0) | |
1704 | ifo->auth.protocol = AUTH_PROTO_DELAYEDREALM; | |
1705 | else { | |
1706 | syslog(LOG_ERR, "%s: unsupported protocol", arg); | |
1707 | return -1; | |
1708 | } | |
1709 | arg = strskipwhite(fp); | |
1710 | fp = strwhite(arg); | |
1711 | if (arg == NULL) { | |
1712 | ifo->auth.options |= DHCPCD_AUTH_SEND; | |
1713 | ifo->auth.algorithm = AUTH_ALG_HMAC_MD5; | |
1714 | ifo->auth.rdm = AUTH_RDM_MONOTONIC; | |
1715 | break; | |
1716 | } | |
1717 | if (fp) | |
1718 | *fp++ = '\0'; | |
1719 | if (strcasecmp(arg, "hmacmd5") == 0 || | |
1720 | strcasecmp(arg, "hmac-md5") == 0) | |
1721 | ifo->auth.algorithm = AUTH_ALG_HMAC_MD5; | |
1722 | else { | |
1723 | syslog(LOG_ERR, "%s: unsupported algorithm", arg); | |
1724 | return 1; | |
1725 | } | |
1726 | arg = fp; | |
1727 | if (arg == NULL) { | |
1728 | ifo->auth.options |= DHCPCD_AUTH_SEND; | |
1729 | ifo->auth.rdm = AUTH_RDM_MONOTONIC; | |
1730 | break; | |
1731 | } | |
cf0840ef RM |
1732 | if (strcasecmp(arg, "monocounter") == 0) { |
1733 | ifo->auth.rdm = AUTH_RDM_MONOTONIC; | |
1734 | ifo->auth.options |= DHCPCD_AUTH_RDM_COUNTER; | |
1735 | } else if (strcasecmp(arg, "monotonic") ==0 || | |
1736 | strcasecmp(arg, "monotime") == 0) | |
c73ed171 RM |
1737 | ifo->auth.rdm = AUTH_RDM_MONOTONIC; |
1738 | else { | |
1739 | syslog(LOG_ERR, "%s: unsupported RDM", arg); | |
1740 | return -1; | |
1741 | } | |
35fef8ed | 1742 | ifo->auth.options |= DHCPCD_AUTH_SEND; |
c73ed171 RM |
1743 | break; |
1744 | case O_AUTHTOKEN: | |
1745 | fp = strwhite(arg); | |
1746 | if (fp == NULL) { | |
1747 | syslog(LOG_ERR, "authtoken requires a realm"); | |
1748 | return -1; | |
1749 | } | |
1750 | *fp++ = '\0'; | |
1751 | token = malloc(sizeof(*token)); | |
1752 | if (token == NULL) { | |
1753 | syslog(LOG_ERR, "%s: %m", __func__); | |
a8c8e686 | 1754 | free(token); |
c73ed171 RM |
1755 | return -1; |
1756 | } | |
1757 | if (parse_uint32(&token->secretid, arg) == -1) { | |
1758 | syslog(LOG_ERR, "%s: not a number", arg); | |
1759 | free(token); | |
1760 | return -1; | |
1761 | } | |
1762 | arg = fp; | |
1763 | fp = strend(arg); | |
1764 | if (fp == NULL) { | |
1765 | syslog(LOG_ERR, "authtoken requies an a key"); | |
1766 | free(token); | |
1767 | return -1; | |
1768 | } | |
1769 | *fp++ = '\0'; | |
34457fe6 RM |
1770 | s = parse_string(NULL, 0, arg); |
1771 | if (s == -1) { | |
1772 | syslog(LOG_ERR, "realm_len: %m"); | |
a8c8e686 | 1773 | free(token); |
34457fe6 RM |
1774 | return -1; |
1775 | } | |
1776 | if (s) { | |
1777 | token->realm_len = (size_t)s; | |
c73ed171 RM |
1778 | token->realm = malloc(token->realm_len); |
1779 | if (token->realm == NULL) { | |
1780 | free(token); | |
1781 | syslog(LOG_ERR, "%s: %m", __func__); | |
1782 | return -1; | |
1783 | } | |
1784 | parse_string((char *)token->realm, token->realm_len, | |
1785 | arg); | |
34457fe6 RM |
1786 | } else { |
1787 | token->realm_len = 0; | |
1788 | token->realm = NULL; | |
c73ed171 RM |
1789 | } |
1790 | arg = fp; | |
1791 | fp = strend(arg); | |
1792 | if (fp == NULL) { | |
1793 | syslog(LOG_ERR, "authtoken requies an an expiry date"); | |
1794 | free(token->realm); | |
1795 | free(token); | |
1796 | return -1; | |
1797 | } | |
1798 | *fp++ = '\0'; | |
1799 | if (*arg == '"') { | |
1800 | arg++; | |
1801 | np = strchr(arg, '"'); | |
1802 | if (np) | |
1803 | *np = '\0'; | |
1804 | } | |
1805 | if (strcmp(arg, "0") == 0 || strcasecmp(arg, "forever") == 0) | |
1806 | token->expire =0; | |
1807 | else { | |
1808 | struct tm tm; | |
1809 | ||
1810 | memset(&tm, 0, sizeof(tm)); | |
1811 | if (strptime(arg, "%Y-%m-%d %H:%M", &tm) == NULL) { | |
1812 | syslog(LOG_ERR, "%s: invalid date time", arg); | |
1813 | free(token->realm); | |
1814 | free(token); | |
1815 | return -1; | |
1816 | } | |
1817 | if ((token->expire = mktime(&tm)) == (time_t)-1) { | |
1818 | syslog(LOG_ERR, "%s: mktime: %m", __func__); | |
1819 | free(token->realm); | |
1820 | free(token); | |
1821 | return -1; | |
1822 | } | |
1823 | } | |
1824 | arg = fp; | |
34457fe6 RM |
1825 | s = parse_string(NULL, 0, arg); |
1826 | if (s == -1 || s == 0) { | |
1827 | syslog(LOG_ERR, s == -1 ? "token_len: %m" : | |
1828 | "authtoken needs a key"); | |
c73ed171 RM |
1829 | free(token->realm); |
1830 | free(token); | |
1831 | return -1; | |
1832 | } | |
34457fe6 | 1833 | token->key_len = (size_t)s; |
c73ed171 RM |
1834 | token->key = malloc(token->key_len); |
1835 | parse_string((char *)token->key, token->key_len, arg); | |
1836 | TAILQ_INSERT_TAIL(&ifo->auth.tokens, token, next); | |
1837 | break; | |
1838 | case O_AUTHNOTREQUIRED: | |
1839 | ifo->auth.options &= ~DHCPCD_AUTH_REQUIRE; | |
1840 | break; | |
94bec972 RM |
1841 | case O_DHCP: |
1842 | ifo->options |= DHCPCD_DHCP | DHCPCD_IPV4; | |
1843 | break; | |
d4154ba7 RM |
1844 | case O_NODHCP: |
1845 | ifo->options &= ~DHCPCD_DHCP; | |
1846 | break; | |
94bec972 RM |
1847 | case O_DHCP6: |
1848 | ifo->options |= DHCPCD_DHCP6 | DHCPCD_IPV6; | |
1849 | break; | |
d4154ba7 RM |
1850 | case O_NODHCP6: |
1851 | ifo->options &= ~DHCPCD_DHCP6; | |
1852 | break; | |
a93e79c6 RM |
1853 | case O_CONTROLGRP: |
1854 | #ifdef _REENTRANT | |
1855 | l = sysconf(_SC_GETGR_R_SIZE_MAX); | |
1856 | if (l == -1) | |
1857 | dl = 1024; | |
1858 | else | |
1859 | dl = (size_t)l; | |
1860 | p = malloc(dl); | |
1861 | if (p == NULL) { | |
1862 | syslog(LOG_ERR, "%s: malloc: %m", __func__); | |
1863 | return -1; | |
1864 | } | |
1865 | while ((i = getgrnam_r(arg, &grpbuf, p, (size_t)l, &grp)) == | |
1866 | ERANGE) | |
1867 | { | |
1868 | size_t nl = dl * 2; | |
1869 | if (nl < dl) { | |
1870 | syslog(LOG_ERR, "control_group: out of buffer"); | |
1871 | free(p); | |
1872 | return -1; | |
1873 | } | |
1874 | dl = nl; | |
1875 | np = realloc(p, dl); | |
1876 | if (np == NULL) { | |
1877 | syslog(LOG_ERR, "control_group: realloc: %m"); | |
1878 | free(p); | |
1879 | return -1; | |
1880 | } | |
1881 | p = np; | |
1882 | } | |
1883 | if (i != 0) { | |
1884 | errno = i; | |
1885 | syslog(LOG_ERR, "getgrnam_r: %m"); | |
1886 | free(p); | |
1887 | return -1; | |
1888 | } | |
1889 | if (grp == NULL) { | |
1890 | syslog(LOG_ERR, "controlgroup: %s: not found", arg); | |
1891 | free(p); | |
1892 | return -1; | |
1893 | } | |
1894 | ctx->control_group = grp->gr_gid; | |
1895 | free(p); | |
1896 | #else | |
1897 | grp = getgrnam(arg); | |
1898 | if (grp == NULL) { | |
1899 | syslog(LOG_ERR, "controlgroup: %s: not found", arg); | |
1900 | return -1; | |
1901 | } | |
1902 | ctx->control_group = grp->gr_gid; | |
1903 | #endif | |
1904 | break; | |
ee56a47d RM |
1905 | case O_GATEWAY: |
1906 | ifo->options |= DHCPCD_GATEWAY; | |
1907 | break; | |
1aeaf0e7 RM |
1908 | case O_SLAAC: |
1909 | if (strcmp(arg, "private") == 0 || | |
1910 | strcmp(arg, "stableprivate") == 0 || | |
1911 | strcmp(arg, "stable") == 0) | |
1912 | ifo->options |= DHCPCD_SLAACPRIVATE; | |
1913 | else | |
1914 | ifo->options &= ~DHCPCD_SLAACPRIVATE; | |
3ed12ab8 | 1915 | break; |
9d5cb9f9 RM |
1916 | case O_PFXDLGMIX: |
1917 | ifo->options |= DHCPCD_PFXDLGMIX; | |
fb8a0db7 | 1918 | break; |
fd05b7dc RM |
1919 | default: |
1920 | return 0; | |
1921 | } | |
1922 | ||
1923 | return 1; | |
1924 | } | |
1925 | ||
1926 | static int | |
4eb7b489 RM |
1927 | parse_config_line(struct dhcpcd_ctx *ctx, const char *ifname, |
1928 | struct if_options *ifo, const char *opt, char *line, | |
1929 | struct dhcp_opt **ldop, struct dhcp_opt **edop) | |
fd05b7dc RM |
1930 | { |
1931 | unsigned int i; | |
1932 | ||
1933 | for (i = 0; i < sizeof(cf_options) / sizeof(cf_options[0]); i++) { | |
1934 | if (!cf_options[i].name || | |
1935 | strcmp(cf_options[i].name, opt) != 0) | |
1936 | continue; | |
1937 | ||
1938 | if (cf_options[i].has_arg == required_argument && !line) { | |
1939 | fprintf(stderr, | |
eab2229c RM |
1940 | PACKAGE ": option requires an argument -- %s\n", |
1941 | opt); | |
fd05b7dc RM |
1942 | return -1; |
1943 | } | |
1944 | ||
4eb7b489 RM |
1945 | return parse_option(ctx, ifname, ifo, cf_options[i].val, line, |
1946 | ldop, edop); | |
fd05b7dc RM |
1947 | } |
1948 | ||
4eb7b489 | 1949 | syslog(LOG_ERR, "unknown option: %s", opt); |
fd05b7dc RM |
1950 | return -1; |
1951 | } | |
1952 | ||
741f46c6 | 1953 | static void |
b0272a9d | 1954 | finish_config(struct if_options *ifo) |
741f46c6 RM |
1955 | { |
1956 | ||
1957 | /* Terminate the encapsulated options */ | |
1958 | if (ifo->vendor[0] && !(ifo->options & DHCPCD_VENDORRAW)) { | |
1959 | ifo->vendor[0]++; | |
1960 | ifo->vendor[ifo->vendor[0]] = DHO_END; | |
aeddc61a RM |
1961 | /* We are called twice. |
1962 | * This should be fixed, but in the meantime, this | |
1963 | * guard should suffice */ | |
1964 | ifo->options |= DHCPCD_VENDORRAW; | |
741f46c6 | 1965 | } |
b0272a9d | 1966 | } |
741f46c6 | 1967 | |
c1b54b57 RM |
1968 | /* Handy routine to read very long lines in text files. |
1969 | * This means we read the whole line and avoid any nasty buffer overflows. | |
1970 | * We strip leading space and avoid comment lines, making the code that calls | |
1971 | * us smaller. */ | |
1972 | static char * | |
4eb7b489 RM |
1973 | get_line(char ** __restrict buf, size_t * __restrict buflen, |
1974 | FILE * __restrict fp) | |
c1b54b57 RM |
1975 | { |
1976 | char *p; | |
1977 | ssize_t bytes; | |
1978 | ||
1979 | do { | |
1980 | bytes = getline(buf, buflen, fp); | |
1981 | if (bytes == -1) | |
1982 | return NULL; | |
1983 | for (p = *buf; *p == ' ' || *p == '\t'; p++) | |
1984 | ; | |
1985 | } while (*p == '\0' || *p == '\n' || *p == '#' || *p == ';'); | |
1986 | if ((*buf)[--bytes] == '\n') | |
1987 | (*buf)[bytes] = '\0'; | |
1988 | return p; | |
1989 | } | |
1990 | ||
fd05b7dc | 1991 | struct if_options * |
4eb7b489 | 1992 | read_config(struct dhcpcd_ctx *ctx, |
6f767217 | 1993 | const char *ifname, const char *ssid, const char *profile) |
fd05b7dc RM |
1994 | { |
1995 | struct if_options *ifo; | |
c1b54b57 RM |
1996 | FILE *fp; |
1997 | char *line, *buf, *option, *p; | |
1998 | size_t buflen; | |
fec195b5 | 1999 | ssize_t vlen; |
6f767217 | 2000 | int skip = 0, have_profile = 0; |
1cd05a96 | 2001 | #ifndef EMBEDDED_CONFIG |
e2e644e9 | 2002 | const char * const *e; |
c1b54b57 | 2003 | size_t ol; |
1cd05a96 | 2004 | #endif |
d9fbb118 | 2005 | #if !defined(INET) || !defined(INET6) |
10cac699 | 2006 | size_t i; |
d9fbb118 RM |
2007 | struct dhcp_opt *opt; |
2008 | #endif | |
4eb7b489 | 2009 | struct dhcp_opt *ldop, *edop; |
fd05b7dc RM |
2010 | |
2011 | /* Seed our default options */ | |
10e17e3f RM |
2012 | ifo = calloc(1, sizeof(*ifo)); |
2013 | if (ifo == NULL) { | |
2014 | syslog(LOG_ERR, "%s: %m", __func__); | |
2015 | return NULL; | |
2016 | } | |
aae24feb | 2017 | ifo->options |= DHCPCD_DAEMONISE | DHCPCD_LINK; |
413652c1 RM |
2018 | #ifdef PLUGIN_DEV |
2019 | ifo->options |= DHCPCD_DEV; | |
2020 | #endif | |
aae24feb | 2021 | #ifdef INET |
d4154ba7 | 2022 | ifo->options |= DHCPCD_IPV4 | DHCPCD_DHCP | DHCPCD_IPV4LL; |
00ababe4 | 2023 | ifo->options |= DHCPCD_GATEWAY | DHCPCD_ARP; |
aae24feb RM |
2024 | #endif |
2025 | #ifdef INET6 | |
d7555c12 | 2026 | ifo->options |= DHCPCD_IPV6 | DHCPCD_IPV6RS | DHCPCD_IPV6RA_REQRDNSS; |
d4154ba7 | 2027 | ifo->options |= DHCPCD_DHCP6; |
aae24feb | 2028 | #endif |
fd05b7dc | 2029 | ifo->timeout = DEFAULT_TIMEOUT; |
a2a9a498 | 2030 | ifo->reboot = DEFAULT_REBOOT; |
f43e5853 | 2031 | ifo->metric = -1; |
c73ed171 RM |
2032 | ifo->auth.options |= DHCPCD_AUTH_REQUIRE; |
2033 | TAILQ_INIT(&ifo->auth.tokens); | |
793c4286 | 2034 | |
fec195b5 RM |
2035 | vlen = dhcp_vendor((char *)ifo->vendorclassid + 1, |
2036 | sizeof(ifo->vendorclassid) - 1); | |
2037 | ifo->vendorclassid[0] = vlen == -1 ? 0 : (uint8_t)vlen; | |
fd05b7dc | 2038 | |
c1b54b57 RM |
2039 | buf = NULL; |
2040 | buflen = 0; | |
2041 | ||
8e7d8c37 | 2042 | /* Parse our embedded options file */ |
1cd05a96 RM |
2043 | if (ifname == NULL) { |
2044 | /* Space for initial estimates */ | |
2045 | #if defined(INET) && defined(INITDEFINES) | |
2046 | ifo->dhcp_override = | |
2047 | calloc(INITDEFINES, sizeof(*ifo->dhcp_override)); | |
2048 | if (ifo->dhcp_override == NULL) | |
2049 | syslog(LOG_ERR, "%s: %m", __func__); | |
2050 | else | |
2051 | ifo->dhcp_override_len = INITDEFINES; | |
2052 | #endif | |
2053 | ||
2054 | #if defined(INET6) && defined(INITDEFINE6S) | |
2055 | ifo->dhcp6_override = | |
2056 | calloc(INITDEFINE6S, sizeof(*ifo->dhcp6_override)); | |
2057 | if (ifo->dhcp6_override == NULL) | |
2058 | syslog(LOG_ERR, "%s: %m", __func__); | |
2059 | else | |
d9fbb118 | 2060 | ifo->dhcp6_override_len = INITDEFINE6S; |
1cd05a96 RM |
2061 | #endif |
2062 | ||
2063 | /* Now load our embedded config */ | |
2064 | #ifdef EMBEDDED_CONFIG | |
c1b54b57 RM |
2065 | fp = fopen(EMBEDDED_CONFIG, "r"); |
2066 | if (fp == NULL) | |
1cd05a96 RM |
2067 | syslog(LOG_ERR, "fopen `%s': %m", EMBEDDED_CONFIG); |
2068 | ||
c1b54b57 | 2069 | while (fp && (line = get_line(&buf, &buflen, fp))) { |
1cd05a96 | 2070 | #else |
a319fa53 RM |
2071 | buflen = 80; |
2072 | buf = malloc(buflen); | |
2073 | if (buf == NULL) { | |
1cd05a96 RM |
2074 | syslog(LOG_ERR, "%s: %m", __func__); |
2075 | return NULL; | |
2076 | } | |
4eb7b489 | 2077 | ldop = edop = NULL; |
1cd05a96 RM |
2078 | for (e = dhcpcd_embedded_conf; *e; e++) { |
2079 | ol = strlen(*e) + 1; | |
a319fa53 | 2080 | if (ol > buflen) { |
a319fa53 | 2081 | buflen = ol; |
967db595 | 2082 | buf = realloc(buf, buflen); |
a319fa53 | 2083 | if (buf == NULL) { |
1cd05a96 | 2084 | syslog(LOG_ERR, "%s: %m", __func__); |
967db595 | 2085 | free(buf); |
1cd05a96 RM |
2086 | return NULL; |
2087 | } | |
2088 | } | |
a319fa53 RM |
2089 | memcpy(buf, *e, ol); |
2090 | line = buf; | |
1cd05a96 | 2091 | #endif |
8e7d8c37 | 2092 | option = strsep(&line, " \t"); |
ab371aa6 RM |
2093 | if (line) |
2094 | line = strskipwhite(line); | |
8e7d8c37 RM |
2095 | /* Trim trailing whitespace */ |
2096 | if (line && *line) { | |
2097 | p = line + strlen(line) - 1; | |
2098 | while (p != line && | |
2099 | (*p == ' ' || *p == '\t') && | |
2100 | *(p - 1) != '\\') | |
2101 | *p-- = '\0'; | |
2102 | } | |
4eb7b489 RM |
2103 | parse_config_line(ctx, NULL, ifo, option, line, |
2104 | &ldop, &edop); | |
1cd05a96 | 2105 | |
8e7d8c37 | 2106 | } |
1cd05a96 RM |
2107 | |
2108 | #ifdef EMBEDDED_CONFIG | |
c1b54b57 RM |
2109 | if (fp) |
2110 | fclose(fp); | |
1cd05a96 RM |
2111 | #endif |
2112 | #ifdef INET | |
4eb7b489 RM |
2113 | ctx->dhcp_opts = ifo->dhcp_override; |
2114 | ctx->dhcp_opts_len = ifo->dhcp_override_len; | |
1cd05a96 | 2115 | #else |
d9fbb118 RM |
2116 | for (i = 0, opt = ifo->dhcp_override; |
2117 | i < ifo->dhcp_override_len; | |
2118 | i++, opt++) | |
2119 | free_dhcp_opt_embenc(opt); | |
1cd05a96 RM |
2120 | free(ifo->dhcp_override); |
2121 | #endif | |
2122 | ifo->dhcp_override = NULL; | |
2123 | ifo->dhcp_override_len = 0; | |
2124 | ||
2125 | #ifdef INET6 | |
4eb7b489 RM |
2126 | ctx->dhcp6_opts = ifo->dhcp6_override; |
2127 | ctx->dhcp6_opts_len = ifo->dhcp6_override_len; | |
1cd05a96 | 2128 | #else |
d9fbb118 | 2129 | for (i = 0, opt = ifo->dhcp6_override; |
10cac699 | 2130 | i < ifo->dhcp6_override_len; |
d9fbb118 RM |
2131 | i++, opt++) |
2132 | free_dhcp_opt_embenc(opt); | |
1cd05a96 RM |
2133 | free(ifo->dhcp6_override); |
2134 | #endif | |
2135 | ifo->dhcp6_override = NULL; | |
2136 | ifo->dhcp6_override_len = 0; | |
7a911e57 | 2137 | |
4eb7b489 RM |
2138 | ctx->vivso = ifo->vivso_override; |
2139 | ctx->vivso_len = ifo->vivso_override_len; | |
7a911e57 RM |
2140 | ifo->vivso_override = NULL; |
2141 | ifo->vivso_override_len = 0; | |
8e7d8c37 RM |
2142 | } |
2143 | ||
fd05b7dc | 2144 | /* Parse our options file */ |
4eb7b489 | 2145 | fp = fopen(ctx->cffile, "r"); |
c1b54b57 | 2146 | if (fp == NULL) { |
4eb7b489 RM |
2147 | if (strcmp(ctx->cffile, CONFIG)) |
2148 | syslog(LOG_ERR, "fopen `%s': %m", ctx->cffile); | |
c1b54b57 | 2149 | free(buf); |
fd05b7dc | 2150 | return ifo; |
5e2062a4 | 2151 | } |
fd05b7dc | 2152 | |
4eb7b489 | 2153 | ldop = edop = NULL; |
c1b54b57 | 2154 | while ((line = get_line(&buf, &buflen, fp))) { |
e1caa8db | 2155 | option = strsep(&line, " \t"); |
ab371aa6 RM |
2156 | if (line) |
2157 | line = strskipwhite(line); | |
fd05b7dc RM |
2158 | /* Trim trailing whitespace */ |
2159 | if (line && *line) { | |
2160 | p = line + strlen(line) - 1; | |
2161 | while (p != line && | |
eab2229c RM |
2162 | (*p == ' ' || *p == '\t') && |
2163 | *(p - 1) != '\\') | |
fd05b7dc RM |
2164 | *p-- = '\0'; |
2165 | } | |
2166 | /* Start of an interface block, skip if not ours */ | |
2167 | if (strcmp(option, "interface") == 0) { | |
4d91c2e7 RM |
2168 | char **n; |
2169 | ||
fd05b7dc RM |
2170 | if (ifname && line && strcmp(line, ifname) == 0) |
2171 | skip = 0; | |
2172 | else | |
2173 | skip = 1; | |
4d91c2e7 RM |
2174 | if (ifname) |
2175 | continue; | |
2176 | ||
2177 | n = realloc(ctx->ifcv, | |
2178 | sizeof(char *) * ((size_t)ctx->ifcc + 1)); | |
2179 | if (n == NULL) { | |
2180 | syslog(LOG_ERR, "%s: %m", __func__); | |
2181 | continue; | |
2182 | } | |
2183 | ctx->ifcv = n; | |
2184 | ctx->ifcv[ctx->ifcc] = strdup(line); | |
2185 | if (ctx->ifcv[ctx->ifcc] == NULL) { | |
2186 | syslog(LOG_ERR, "%s: %m", __func__); | |
2187 | continue; | |
2188 | } | |
2189 | ctx->ifcc++; | |
2190 | syslog(LOG_DEBUG, "allowing interface %s", | |
2191 | ctx->ifcv[ctx->ifcc - 1]); | |
fd05b7dc | 2192 | continue; |
c53cf4ef RM |
2193 | } |
2194 | /* Start of an ssid block, skip if not ours */ | |
2195 | if (strcmp(option, "ssid") == 0) { | |
2196 | if (ssid && line && strcmp(line, ssid) == 0) | |
2197 | skip = 0; | |
2198 | else | |
2199 | skip = 1; | |
2200 | continue; | |
fd05b7dc | 2201 | } |
6f767217 RM |
2202 | /* Start of a profile block, skip if not ours */ |
2203 | if (strcmp(option, "profile") == 0) { | |
2204 | if (profile && line && strcmp(line, profile) == 0) { | |
2205 | skip = 0; | |
2206 | have_profile = 1; | |
2207 | } else | |
2208 | skip = 1; | |
2209 | continue; | |
2210 | } | |
ba7a34fb RM |
2211 | /* Skip arping if we have selected a profile but not parsing |
2212 | * one. */ | |
2213 | if (profile && !have_profile && strcmp(option, "arping") == 0) | |
2214 | continue; | |
fd05b7dc RM |
2215 | if (skip) |
2216 | continue; | |
4eb7b489 | 2217 | parse_config_line(ctx, ifname, ifo, option, line, &ldop, &edop); |
fd05b7dc | 2218 | } |
c1b54b57 RM |
2219 | fclose(fp); |
2220 | free(buf); | |
fd05b7dc | 2221 | |
6f767217 RM |
2222 | if (profile && !have_profile) { |
2223 | free_options(ifo); | |
2224 | errno = ENOENT; | |
658bfd5e | 2225 | return NULL; |
6f767217 RM |
2226 | } |
2227 | ||
b0272a9d | 2228 | finish_config(ifo); |
fd05b7dc RM |
2229 | return ifo; |
2230 | } | |
2231 | ||
2232 | int | |
4eb7b489 RM |
2233 | add_options(struct dhcpcd_ctx *ctx, const char *ifname, |
2234 | struct if_options *ifo, int argc, char **argv) | |
fd05b7dc | 2235 | { |
29c0fd6f RM |
2236 | int oi, opt, r; |
2237 | ||
2238 | if (argc == 0) | |
2239 | return 1; | |
fd05b7dc RM |
2240 | |
2241 | optind = 0; | |
29c0fd6f | 2242 | r = 1; |
fd05b7dc RM |
2243 | while ((opt = getopt_long(argc, argv, IF_OPTS, cf_options, &oi)) != -1) |
2244 | { | |
4eb7b489 | 2245 | r = parse_option(ctx, ifname, ifo, opt, optarg, NULL, NULL); |
fd05b7dc RM |
2246 | if (r != 1) |
2247 | break; | |
2248 | } | |
741f46c6 | 2249 | |
b0272a9d | 2250 | finish_config(ifo); |
fd05b7dc RM |
2251 | return r; |
2252 | } | |
2253 | ||
2254 | void | |
2255 | free_options(struct if_options *ifo) | |
2256 | { | |
2257 | size_t i; | |
d9fbb118 | 2258 | struct dhcp_opt *opt; |
900b6f94 | 2259 | struct vivco *vo; |
c73ed171 | 2260 | struct token *token; |
fd05b7dc | 2261 | |
f43e5853 RM |
2262 | if (ifo) { |
2263 | if (ifo->environ) { | |
2264 | i = 0; | |
2265 | while (ifo->environ[i]) | |
2266 | free(ifo->environ[i++]); | |
2267 | free(ifo->environ); | |
2268 | } | |
91a44b91 RM |
2269 | if (ifo->config) { |
2270 | i = 0; | |
2271 | while (ifo->config[i]) | |
2272 | free(ifo->config[i++]); | |
2273 | free(ifo->config); | |
2274 | } | |
e88c525f | 2275 | ipv4_freeroutes(ifo->routes); |
1681b126 | 2276 | free(ifo->script); |
ff021b0b | 2277 | free(ifo->arping); |
f43e5853 | 2278 | free(ifo->blacklist); |
ff021b0b | 2279 | free(ifo->fallback); |
8e7d8c37 | 2280 | |
59a555cd RM |
2281 | for (opt = ifo->dhcp_override; |
2282 | ifo->dhcp_override_len > 0; | |
2283 | opt++, ifo->dhcp_override_len--) | |
d9fbb118 | 2284 | free_dhcp_opt_embenc(opt); |
8e7d8c37 | 2285 | free(ifo->dhcp_override); |
59a555cd RM |
2286 | for (opt = ifo->dhcp6_override; |
2287 | ifo->dhcp6_override_len > 0; | |
2288 | opt++, ifo->dhcp6_override_len--) | |
7a911e57 RM |
2289 | free_dhcp_opt_embenc(opt); |
2290 | free(ifo->dhcp6_override); | |
59a555cd RM |
2291 | for (vo = ifo->vivco; |
2292 | ifo->vivco_len > 0; | |
2293 | vo++, ifo->vivco_len--) | |
900b6f94 RM |
2294 | free(vo->data); |
2295 | free(ifo->vivco); | |
59a555cd RM |
2296 | for (opt = ifo->vivso_override; |
2297 | ifo->vivso_override_len > 0; | |
2298 | opt++, ifo->vivso_override_len--) | |
7a911e57 | 2299 | free_dhcp_opt_embenc(opt); |
900b6f94 | 2300 | free(ifo->vivso_override); |
8e7d8c37 | 2301 | |
00ababe4 | 2302 | #ifdef INET6 |
59a555cd RM |
2303 | for (; ifo->ia_len > 0; ifo->ia_len--) |
2304 | free(ifo->ia[ifo->ia_len - 1].sla); | |
00ababe4 | 2305 | #endif |
ebc9d360 RM |
2306 | free(ifo->ia); |
2307 | ||
c73ed171 RM |
2308 | while ((token = TAILQ_FIRST(&ifo->auth.tokens))) { |
2309 | TAILQ_REMOVE(&ifo->auth.tokens, token, next); | |
2310 | if (token->realm_len) | |
2311 | free(token->realm); | |
2312 | free(token->key); | |
2313 | free(token); | |
2314 | } | |
f43e5853 | 2315 | free(ifo); |
fd05b7dc | 2316 | } |
fd05b7dc | 2317 | } |