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Commit | Line | Data |
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a84fa1d0 | 1 | /* dnsmasq is Copyright (c) 2000 - 2004 Simon Kelley |
9e4abcb5 SK |
2 | |
3 | This program is free software; you can redistribute it and/or modify | |
4 | it under the terms of the GNU General Public License as published by | |
5 | the Free Software Foundation; version 2 dated June, 1991. | |
6 | ||
7 | This program is distributed in the hope that it will be useful, | |
8 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | GNU General Public License for more details. | |
11 | */ | |
12 | ||
13 | /* Author's email: simon@thekelleys.org.uk */ | |
14 | ||
15 | #include "dnsmasq.h" | |
16 | ||
17 | struct myoption { | |
18 | const char *name; | |
19 | int has_arg; | |
20 | int *flag; | |
21 | int val; | |
22 | }; | |
23 | ||
26128d27 | 24 | #define OPTSTRING "ZDNLERKzowefnbvhdkqr:m:p:c:l:s:i:t:u:g:a:x:S:C:A:T:H:Q:I:B:F:G:O:M:X:V:U:j:P:J:" |
9e4abcb5 SK |
25 | |
26 | static struct myoption opts[] = { | |
27 | {"version", 0, 0, 'v'}, | |
28 | {"no-hosts", 0, 0, 'h'}, | |
29 | {"no-poll", 0, 0, 'n'}, | |
30 | {"help", 0, 0, 'w'}, | |
31 | {"no-daemon", 0, 0, 'd'}, | |
32 | {"log-queries", 0, 0, 'q'}, | |
33 | {"user", 1, 0, 'u'}, | |
34 | {"group", 1, 0, 'g'}, | |
35 | {"resolv-file", 1, 0, 'r'}, | |
36 | {"mx-host", 1, 0, 'm'}, | |
37 | {"mx-target", 1, 0, 't'}, | |
38 | {"cache-size", 1, 0, 'c'}, | |
39 | {"port", 1, 0, 'p'}, | |
40 | {"dhcp-leasefile", 1, 0, 'l'}, | |
41 | {"dhcp-lease", 1, 0, 'l' }, | |
42 | {"dhcp-host", 1, 0, 'G'}, | |
43 | {"dhcp-range", 1, 0, 'F'}, | |
44 | {"dhcp-option", 1, 0, 'O'}, | |
45 | {"dhcp-boot", 1, 0, 'M'}, | |
46 | {"domain", 1, 0, 's'}, | |
47 | {"domain-suffix", 1, 0, 's'}, | |
48 | {"interface", 1, 0, 'i'}, | |
49 | {"listen-address", 1, 0, 'a'}, | |
50 | {"bogus-priv", 0, 0, 'b'}, | |
51 | {"bogus-nxdomain", 1, 0, 'B'}, | |
52 | {"selfmx", 0, 0, 'e'}, | |
53 | {"filterwin2k", 0, 0, 'f'}, | |
54 | {"pid-file", 1, 0, 'x'}, | |
55 | {"strict-order", 0, 0, 'o'}, | |
56 | {"server", 1, 0, 'S'}, | |
57 | {"local", 1, 0, 'S' }, | |
58 | {"address", 1, 0, 'A' }, | |
59 | {"conf-file", 1, 0, 'C'}, | |
60 | {"no-resolv", 0, 0, 'R'}, | |
61 | {"expand-hosts", 0, 0, 'E'}, | |
62 | {"localmx", 0, 0, 'L'}, | |
63 | {"local-ttl", 1, 0, 'T'}, | |
64 | {"no-negcache", 0, 0, 'N'}, | |
65 | {"addn-hosts", 1, 0, 'H'}, | |
66 | {"query-port", 1, 0, 'Q'}, | |
67 | {"except-interface", 1, 0, 'I'}, | |
68 | {"domain-needed", 0, 0, 'D'}, | |
44a2a316 | 69 | {"dhcp-lease-max", 1, 0, 'X' }, |
1cff166d | 70 | {"bind-interfaces", 0, 0, 'z'}, |
44a2a316 | 71 | {"read-ethers", 0, 0, 'Z' }, |
1cff166d | 72 | {"alias", 1, 0, 'V' }, |
a84fa1d0 | 73 | {"dhcp-vendorclass", 1, 0, 'U'}, |
a222641c | 74 | {"dhcp-userclass", 1, 0, 'j'}, |
26128d27 | 75 | {"dhcp-ignore", 1, 0, 'J'}, |
feba5c1d | 76 | {"edns-packet-max", 1, 0, 'P'}, |
3be34541 | 77 | {"keep-in-foreground", 0, 0, 'k'}, |
fd9fa481 | 78 | {"dhcp-authoritative", 0, 0, 'K'}, |
9e4abcb5 SK |
79 | {0, 0, 0, 0} |
80 | }; | |
81 | ||
82 | struct optflags { | |
83 | char c; | |
84 | unsigned int flag; | |
85 | }; | |
86 | ||
87 | static struct optflags optmap[] = { | |
88 | { 'b', OPT_BOGUSPRIV }, | |
89 | { 'f', OPT_FILTER }, | |
90 | { 'q', OPT_LOG }, | |
91 | { 'e', OPT_SELFMX }, | |
92 | { 'h', OPT_NO_HOSTS }, | |
93 | { 'n', OPT_NO_POLL }, | |
94 | { 'd', OPT_DEBUG }, | |
3be34541 | 95 | { 'k', OPT_NO_FORK }, |
fd9fa481 | 96 | { 'K', OPT_AUTHORITATIVE }, |
9e4abcb5 SK |
97 | { 'o', OPT_ORDER }, |
98 | { 'R', OPT_NO_RESOLV }, | |
99 | { 'E', OPT_EXPAND }, | |
44a2a316 SK |
100 | { 'L', OPT_LOCALMX }, |
101 | { 'N', OPT_NO_NEG }, | |
102 | { 'D', OPT_NODOTS_LOCAL }, | |
103 | { 'z', OPT_NOWILD }, | |
104 | { 'Z', OPT_ETHERS }, | |
9e4abcb5 SK |
105 | { 'v', 0}, |
106 | { 'w', 0}, | |
107 | { 0, 0 } | |
108 | }; | |
109 | ||
110 | static char *usage = | |
26128d27 SK |
111 | "Usage: dnsmasq [options]\n\n" |
112 | #ifndef HAVE_GETOPT_LONG | |
113 | "Use short options only on the command line.\n" | |
114 | #endif | |
115 | "Valid options are :\n" | |
9e4abcb5 SK |
116 | "-a, --listen-address=ipaddr Specify local address(es) to listen on.\n" |
117 | "-A, --address=/domain/ipaddr Return ipaddr for all hosts in specified domains.\n" | |
118 | "-b, --bogus-priv Fake reverse lookups for RFC1918 private address ranges.\n" | |
119 | "-B, --bogus-nxdomain=ipaddr Treat ipaddr as NXDOMAIN (defeats Verisign wildcard).\n" | |
120 | "-c, --cache-size=cachesize Specify the size of the cache in entries (defaults to %d).\n" | |
121 | "-C, --conf-file=path Specify configuration file (defaults to " CONFFILE ").\n" | |
122 | "-d, --no-daemon Do NOT fork into the background: run in debug mode.\n" | |
123 | "-D, --domain-needed Do NOT forward queries with no domain part.\n" | |
124 | "-e, --selfmx Return self-pointing MX records for local hosts.\n" | |
125 | "-E, --expand-hosts Expand simple names in /etc/hosts with domain-suffix.\n" | |
126 | "-f, --filterwin2k Don't forward spurious DNS requests from Windows hosts.\n" | |
127 | "-F, --dhcp-range=ipaddr,ipaddr,time Enable DHCP in the range given with lease duration.\n" | |
128 | "-g, --group=groupname Change to this group after startup (defaults to " CHGRP ").\n" | |
129 | "-G, --dhcp-host=<hostspec> Set address or hostname for a specified machine.\n" | |
130 | "-h, --no-hosts Do NOT load " HOSTSFILE " file.\n" | |
131 | "-H, --addn-hosts=path Specify a hosts file to be read in addition to " HOSTSFILE ".\n" | |
132 | "-i, --interface=interface Specify interface(s) to listen on.\n" | |
133 | "-I, --except-interface=int Specify interface(s) NOT to listen on.\n" | |
a222641c | 134 | "-j, --dhcp-userclass=<id>,<class> Map DHCP user class to option set.\n" |
26128d27 | 135 | "-J, --dhcp-ignore=<id> Don't do DHCP for hosts in option set.\n" |
3be34541 | 136 | "-k, --keep-in-foreground Do NOT fork into the background, do NOT run in debug mode.\n" |
fd9fa481 | 137 | "-K, --dhcp-authoritative Assume we are the only DHCP server on the local network.\n" |
9e4abcb5 SK |
138 | "-l, --dhcp-leasefile=path Specify where to store DHCP leases (defaults to " LEASEFILE ").\n" |
139 | "-L, --localmx Return MX records for local hosts.\n" | |
140 | "-m, --mx-host=host_name Specify the MX name to reply to.\n" | |
141 | "-M, --dhcp-boot=<bootp opts> Specify BOOTP options to DHCP server.\n" | |
142 | "-n, --no-poll Do NOT poll " RESOLVFILE " file, reload only on SIGHUP.\n" | |
143 | "-N, --no-negcache Do NOT cache failed search results.\n" | |
144 | "-o, --strict-order Use nameservers strictly in the order given in " RESOLVFILE ".\n" | |
145 | "-O, --dhcp-option=<optspec> Set extra options to be set to DHCP clients.\n" | |
146 | "-p, --port=number Specify port to listen for DNS requests on (defaults to 53).\n" | |
feba5c1d | 147 | "-P, --edns-packet-max=<size> Maximum supported UDP packet size for EDNS.0 (defaults to %d).\n" |
9e4abcb5 SK |
148 | "-q, --log-queries Log queries.\n" |
149 | "-Q, --query-port=number Force the originating port for upstream queries.\n" | |
150 | "-R, --no-resolv Do NOT read resolv.conf.\n" | |
151 | "-r, --resolv-file=path Specify path to resolv.conf (defaults to " RESOLVFILE ").\n" | |
152 | "-S, --server=/domain/ipaddr Specify address(es) of upstream servers with optional domains.\n" | |
153 | " --local=/domain/ Never forward queries to specified domains.\n" | |
154 | "-s, --domain=domain Specify the domain to be assigned in DHCP leases.\n" | |
155 | "-t, --mx-target=host_name Specify the host in an MX reply.\n" | |
156 | "-T, --local-ttl=time Specify time-to-live in seconds for replies from /etc/hosts.\n" | |
157 | "-u, --user=username Change to this user after startup. (defaults to " CHUSER ").\n" | |
a84fa1d0 | 158 | "-U, --dhcp-vendorclass=<id>,<class> Map DHCP vendor class to option set.\n" |
feba5c1d | 159 | "-v, --version Display dnsmasq version and copyright information.\n" |
1cff166d | 160 | "-V, --alias=addr,addr,mask Translate IPv4 addresses from upstream servers.\n" |
9e4abcb5 SK |
161 | "-w, --help Display this message.\n" |
162 | "-x, --pid-file=path Specify path of PID file. (defaults to " RUNFILE ").\n" | |
44a2a316 SK |
163 | "-X, --dhcp-lease-max=number Specify maximum number of DHCP leases (defaults to %d).\n" |
164 | "-z, --bind-interfaces Bind only to interfaces in use.\n" | |
165 | "-Z, --read-ethers Read DHCP static host information from " ETHERSFILE ".\n" | |
9e4abcb5 SK |
166 | "\n"; |
167 | ||
168 | ||
3be34541 | 169 | struct daemon *read_opts (int argc, char **argv) |
9e4abcb5 | 170 | { |
3be34541 | 171 | struct daemon *daemon = safe_malloc(sizeof(struct daemon)); |
36717eee | 172 | char *problem = NULL, *buff = safe_malloc(MAXDNAME); |
9e4abcb5 | 173 | int option = 0, i; |
33820b7e | 174 | FILE *file_save = NULL, *f = NULL; |
26128d27 | 175 | char *comma, *file_name_save = NULL, *conffile = CONFFILE; |
fd9fa481 | 176 | int hosts_index = 1, conffile_set = 0; |
33820b7e | 177 | int line_save = 0, lineno = 0; |
9e4abcb5 | 178 | opterr = 0; |
44a2a316 | 179 | |
3be34541 SK |
180 | memset(daemon, 0, sizeof(struct daemon)); |
181 | daemon->namebuff = buff; | |
9e4abcb5 | 182 | |
3be34541 SK |
183 | /* Set defaults - everything else is zero or NULL */ |
184 | daemon->min_leasetime = UINT_MAX; | |
185 | daemon->cachesize = CACHESIZ; | |
186 | daemon->port = NAMESERVER_PORT; | |
187 | daemon->default_resolv.is_default = 1; | |
188 | daemon->default_resolv.name = RESOLVFILE; | |
189 | daemon->resolv_files = &daemon->default_resolv; | |
190 | daemon->username = CHUSER; | |
191 | daemon->groupname = CHGRP; | |
192 | daemon->runfile = RUNFILE; | |
193 | daemon->dhcp_max = MAXLEASES; | |
194 | daemon->edns_pktsz = EDNS_PKTSZ; | |
195 | ||
9e4abcb5 SK |
196 | while (1) |
197 | { | |
36717eee SK |
198 | problem = NULL; |
199 | ||
9e4abcb5 SK |
200 | if (!f) |
201 | #ifdef HAVE_GETOPT_LONG | |
202 | option = getopt_long(argc, argv, OPTSTRING, (struct option *)opts, NULL); | |
203 | #else | |
204 | option = getopt(argc, argv, OPTSTRING); | |
205 | #endif | |
206 | else | |
207 | { /* f non-NULL, reading from conffile. */ | |
33820b7e | 208 | reread: |
9e4abcb5 SK |
209 | if (!fgets(buff, MAXDNAME, f)) |
210 | { | |
211 | /* At end of file, all done */ | |
212 | fclose(f); | |
33820b7e SK |
213 | if (file_save) |
214 | { | |
215 | /* may be nested */ | |
216 | conffile = file_name_save; | |
217 | f = file_save; | |
218 | file_save = NULL; | |
219 | lineno = line_save; | |
220 | goto reread; | |
221 | } | |
9e4abcb5 SK |
222 | break; |
223 | } | |
224 | else | |
225 | { | |
226 | char *p; | |
33820b7e | 227 | int white; |
44a2a316 | 228 | lineno++; |
1ab84e2f | 229 | /* dump comments */ |
33820b7e SK |
230 | for (white = 1, p = buff; *p; p++) |
231 | if (white && *p == '#') | |
232 | { | |
233 | *p = 0; | |
234 | break; | |
235 | } | |
236 | else | |
237 | white = isspace(*p); | |
9e4abcb5 | 238 | /* fgets gets end of line char too. */ |
33820b7e | 239 | while (strlen(buff) > 0 && isspace(buff[strlen(buff)-1])) |
9e4abcb5 | 240 | buff[strlen(buff)-1] = 0; |
1ab84e2f SK |
241 | if (*buff == 0) |
242 | continue; | |
9e4abcb5 SK |
243 | if ((p=strchr(buff, '='))) |
244 | { | |
245 | optarg = p+1; | |
246 | *p = 0; | |
247 | } | |
248 | else | |
249 | optarg = NULL; | |
250 | ||
251 | option = 0; | |
252 | for (i=0; opts[i].name; i++) | |
253 | if (strcmp(opts[i].name, buff) == 0) | |
254 | option = opts[i].val; | |
255 | if (!option) | |
44a2a316 SK |
256 | { |
257 | sprintf(buff, "bad option at line %d of %s ", lineno, conffile); | |
258 | complain(buff, NULL); | |
259 | continue; | |
260 | } | |
9e4abcb5 SK |
261 | } |
262 | } | |
263 | ||
264 | if (option == -1) | |
265 | { /* end of command line args, start reading conffile. */ | |
266 | if (!conffile) | |
267 | break; /* "confile=" option disables */ | |
33820b7e | 268 | fileopen: |
9e4abcb5 SK |
269 | option = 0; |
270 | if (!(f = fopen(conffile, "r"))) | |
271 | { | |
272 | if (errno == ENOENT && !conffile_set) | |
273 | break; /* No conffile, all done. */ | |
274 | else | |
275 | die("cannot read %s: %s", conffile); | |
276 | } | |
277 | } | |
278 | ||
279 | if (!f && option == 'w') | |
280 | { | |
feba5c1d | 281 | fprintf (stderr, usage, CACHESIZ, EDNS_PKTSZ, MAXLEASES); |
9e4abcb5 SK |
282 | exit(0); |
283 | } | |
284 | ||
285 | if (!f && option == 'v') | |
286 | { | |
feba5c1d SK |
287 | fprintf(stderr, "Dnsmasq version %s %s\n\n", VERSION, COPYRIGHT); |
288 | fprintf(stderr, "This software comes with ABSOLUTELY NO WARRANTY.\n"); | |
289 | fprintf(stderr, "Dnsmasq is free software, and you are welcome to redistribute it\n"); | |
290 | fprintf(stderr, "under the terms of the GNU General Public License, version 2.\n"); | |
9e4abcb5 SK |
291 | exit(0); |
292 | } | |
293 | ||
294 | for (i=0; optmap[i].c; i++) | |
295 | if (option == optmap[i].c) | |
296 | { | |
3be34541 | 297 | daemon->options |= optmap[i].flag; |
9e4abcb5 SK |
298 | option = 0; |
299 | if (f && optarg) | |
44a2a316 SK |
300 | { |
301 | sprintf(buff, "extraneous parameter at line %d of %s ", lineno, conffile); | |
302 | complain(buff, NULL); | |
303 | } | |
9e4abcb5 SK |
304 | break; |
305 | } | |
306 | ||
307 | if (option && option != '?') | |
308 | { | |
309 | if (f && !optarg) | |
44a2a316 SK |
310 | { |
311 | sprintf(buff, "missing parameter at line %d of %s ", lineno, conffile); | |
312 | complain(buff, NULL); | |
313 | continue; | |
314 | } | |
36717eee | 315 | |
9e4abcb5 SK |
316 | switch (option) |
317 | { | |
318 | case 'C': | |
33820b7e SK |
319 | if (!f) |
320 | { | |
321 | conffile = safe_string_alloc(optarg); | |
322 | conffile_set = 1; | |
323 | break; | |
324 | } | |
325 | ||
326 | /* nest conffiles one deep */ | |
327 | if (file_save) | |
328 | { | |
329 | sprintf(buff, "nested includes not allowed at line %d of %s ", lineno, conffile); | |
330 | complain(buff, NULL); | |
331 | continue; | |
332 | } | |
333 | file_name_save = conffile; | |
334 | file_save = f; | |
335 | line_save = lineno; | |
9e4abcb5 SK |
336 | conffile = safe_string_alloc(optarg); |
337 | conffile_set = 1; | |
33820b7e SK |
338 | lineno = 0; |
339 | goto fileopen; | |
9e4abcb5 SK |
340 | |
341 | case 'x': | |
3be34541 | 342 | daemon->runfile = safe_string_alloc(optarg); |
9e4abcb5 SK |
343 | break; |
344 | ||
345 | case 'r': | |
346 | { | |
347 | char *name = safe_string_alloc(optarg); | |
3be34541 | 348 | struct resolvc *new, *list = daemon->resolv_files; |
9e4abcb5 SK |
349 | if (list && list->is_default) |
350 | { | |
351 | /* replace default resolv file - possibly with nothing */ | |
352 | if (name) | |
353 | { | |
354 | list->is_default = 0; | |
355 | list->name = name; | |
356 | } | |
357 | else | |
358 | list = NULL; | |
359 | } | |
360 | else if (name) | |
361 | { | |
362 | new = safe_malloc(sizeof(struct resolvc)); | |
363 | new->next = list; | |
364 | new->name = name; | |
365 | new->is_default = 0; | |
366 | new->logged = 0; | |
367 | list = new; | |
368 | } | |
3be34541 | 369 | daemon->resolv_files = list; |
9e4abcb5 SK |
370 | break; |
371 | } | |
372 | ||
373 | case 'm': | |
de37951c | 374 | { |
26128d27 | 375 | if ((comma = strchr(optarg, ','))) |
de37951c SK |
376 | *(comma++) = 0; |
377 | if (!canonicalise(optarg) || (comma && !canonicalise(comma))) | |
36717eee SK |
378 | { |
379 | option = '?'; | |
380 | problem = "bad MX name"; | |
381 | } | |
de37951c SK |
382 | else |
383 | { | |
384 | struct mx_record *new = safe_malloc(sizeof(struct mx_record)); | |
3be34541 SK |
385 | new->next = daemon->mxnames; |
386 | daemon->mxnames = new; | |
de37951c SK |
387 | new->mxname = safe_string_alloc(optarg); |
388 | new->mxtarget = safe_string_alloc(comma); /* may be NULL */ | |
389 | } | |
390 | break; | |
391 | } | |
9e4abcb5 SK |
392 | |
393 | case 't': | |
394 | if (!canonicalise(optarg)) | |
36717eee SK |
395 | { |
396 | option = '?'; | |
397 | problem = "bad MX target"; | |
398 | } | |
9e4abcb5 | 399 | else |
3be34541 | 400 | daemon->mxtarget = safe_string_alloc(optarg); |
9e4abcb5 SK |
401 | break; |
402 | ||
403 | case 'l': | |
3be34541 | 404 | daemon->lease_file = safe_string_alloc(optarg); |
9e4abcb5 SK |
405 | break; |
406 | ||
407 | case 'H': | |
fd9fa481 SK |
408 | { |
409 | struct hostsfile *new = safe_malloc(sizeof(struct hostsfile)); | |
410 | new->fname = safe_string_alloc(optarg); | |
411 | new->index = hosts_index++; | |
412 | new->next = daemon->addn_hosts; | |
413 | daemon->addn_hosts = new; | |
414 | break; | |
415 | } | |
416 | ||
9e4abcb5 | 417 | case 's': |
de37951c | 418 | if (strcmp (optarg, "#") == 0) |
3be34541 | 419 | daemon->options |= OPT_RESOLV_DOMAIN; |
de37951c | 420 | else if (!canonicalise(optarg)) |
9e4abcb5 SK |
421 | option = '?'; |
422 | else | |
3be34541 | 423 | daemon->domain_suffix = safe_string_alloc(optarg); |
9e4abcb5 SK |
424 | break; |
425 | ||
426 | case 'u': | |
3be34541 | 427 | daemon->username = safe_string_alloc(optarg); |
9e4abcb5 SK |
428 | break; |
429 | ||
430 | case 'g': | |
3be34541 | 431 | daemon->groupname = safe_string_alloc(optarg); |
9e4abcb5 SK |
432 | break; |
433 | ||
434 | case 'i': | |
26128d27 | 435 | do { |
9e4abcb5 | 436 | struct iname *new = safe_malloc(sizeof(struct iname)); |
26128d27 SK |
437 | if ((comma = strchr(optarg, ','))) |
438 | *comma++ = 0; | |
3be34541 SK |
439 | new->next = daemon->if_names; |
440 | daemon->if_names = new; | |
9e4abcb5 SK |
441 | /* new->name may be NULL if someone does |
442 | "interface=" to disable all interfaces except loop. */ | |
443 | new->name = safe_string_alloc(optarg); | |
de37951c | 444 | new->isloop = new->used = 0; |
8a911ccc | 445 | if (strchr(optarg, ':')) |
3be34541 | 446 | daemon->options |= OPT_NOWILD; |
26128d27 SK |
447 | optarg = comma; |
448 | } while (optarg); | |
449 | break; | |
450 | ||
9e4abcb5 | 451 | case 'I': |
26128d27 | 452 | do { |
9e4abcb5 | 453 | struct iname *new = safe_malloc(sizeof(struct iname)); |
26128d27 SK |
454 | if ((comma = strchr(optarg, ','))) |
455 | *comma++ = 0; | |
3be34541 SK |
456 | new->next = daemon->if_except; |
457 | daemon->if_except = new; | |
9e4abcb5 | 458 | new->name = safe_string_alloc(optarg); |
8a911ccc | 459 | if (strchr(optarg, ':')) |
26128d27 SK |
460 | daemon->options |= OPT_NOWILD; |
461 | optarg = comma; | |
462 | } while (optarg); | |
463 | break; | |
464 | ||
9e4abcb5 SK |
465 | case 'B': |
466 | { | |
467 | struct in_addr addr; | |
468 | if ((addr.s_addr = inet_addr(optarg)) != (in_addr_t)-1) | |
469 | { | |
470 | struct bogus_addr *baddr = safe_malloc(sizeof(struct bogus_addr)); | |
3be34541 SK |
471 | baddr->next = daemon->bogus_addr; |
472 | daemon->bogus_addr = baddr; | |
9e4abcb5 SK |
473 | baddr->addr = addr; |
474 | } | |
475 | else | |
476 | option = '?'; /* error */ | |
477 | break; | |
478 | } | |
479 | ||
480 | case 'a': | |
59353a6b | 481 | do { |
9e4abcb5 | 482 | struct iname *new = safe_malloc(sizeof(struct iname)); |
59353a6b SK |
483 | if ((comma = strchr(optarg, ','))) |
484 | *comma++ = 0; | |
3be34541 | 485 | new->next = daemon->if_addrs; |
9e4abcb5 SK |
486 | #ifdef HAVE_IPV6 |
487 | if (inet_pton(AF_INET, optarg, &new->addr.in.sin_addr)) | |
488 | { | |
489 | new->addr.sa.sa_family = AF_INET; | |
490 | #ifdef HAVE_SOCKADDR_SA_LEN | |
491 | new->addr.in.sin_len = sizeof(struct sockaddr_in); | |
492 | #endif | |
493 | } | |
494 | else if (inet_pton(AF_INET6, optarg, &new->addr.in6.sin6_addr)) | |
495 | { | |
496 | new->addr.sa.sa_family = AF_INET6; | |
497 | new->addr.in6.sin6_flowinfo = htonl(0); | |
498 | #ifdef HAVE_SOCKADDR_SA_LEN | |
499 | new->addr.in6.sin6_len = sizeof(struct sockaddr_in6); | |
500 | #endif | |
501 | } | |
502 | #else | |
503 | if ((new->addr.in.sin_addr.s_addr = inet_addr(optarg)) != (in_addr_t)-1) | |
504 | { | |
505 | new->addr.sa.sa_family = AF_INET; | |
506 | #ifdef HAVE_SOCKADDR_SA_LEN | |
507 | new->addr.in.sin_len = sizeof(struct sockaddr_in); | |
508 | #endif | |
509 | } | |
510 | #endif | |
511 | else | |
44a2a316 SK |
512 | { |
513 | option = '?'; /* error */ | |
514 | free(new); | |
59353a6b | 515 | break; |
44a2a316 SK |
516 | } |
517 | ||
59353a6b SK |
518 | daemon->if_addrs = new; |
519 | optarg = comma; | |
520 | } while (optarg); | |
521 | break; | |
522 | ||
9e4abcb5 SK |
523 | case 'S': |
524 | case 'A': | |
525 | { | |
526 | struct server *serv, *newlist = NULL; | |
527 | ||
528 | if (*optarg == '/') | |
529 | { | |
530 | char *end; | |
531 | optarg++; | |
532 | while ((end = strchr(optarg, '/'))) | |
533 | { | |
a222641c | 534 | char *domain = NULL; |
9e4abcb5 | 535 | *end = 0; |
a222641c SK |
536 | /* # matches everything and becomes a zero length domain string */ |
537 | if (strcmp(optarg, "#") == 0) | |
538 | domain = ""; | |
de37951c | 539 | else if (!canonicalise(optarg) && strlen(optarg) != 0) |
44a2a316 | 540 | option = '?'; |
a222641c SK |
541 | else |
542 | domain = safe_string_alloc(optarg); /* NULL if strlen is zero */ | |
9e4abcb5 SK |
543 | serv = safe_malloc(sizeof(struct server)); |
544 | serv->next = newlist; | |
545 | newlist = serv; | |
546 | serv->sfd = NULL; | |
547 | serv->domain = domain; | |
548 | serv->flags = domain ? SERV_HAS_DOMAIN : SERV_FOR_NODOTS; | |
549 | optarg = end+1; | |
550 | } | |
551 | if (!newlist) | |
552 | { | |
553 | option = '?'; | |
554 | break; | |
555 | } | |
556 | ||
557 | } | |
558 | else | |
559 | { | |
560 | newlist = safe_malloc(sizeof(struct server)); | |
561 | newlist->next = NULL; | |
562 | newlist->flags = 0; | |
563 | newlist->sfd = NULL; | |
564 | newlist->domain = NULL; | |
565 | } | |
566 | ||
567 | if (option == 'A') | |
568 | { | |
569 | newlist->flags |= SERV_LITERAL_ADDRESS; | |
570 | if (!(newlist->flags & SERV_TYPE)) | |
44a2a316 | 571 | option = '?'; |
9e4abcb5 SK |
572 | } |
573 | ||
574 | if (!*optarg) | |
575 | { | |
576 | newlist->flags |= SERV_NO_ADDR; /* no server */ | |
577 | if (newlist->flags & SERV_LITERAL_ADDRESS) | |
44a2a316 | 578 | option = '?'; |
9e4abcb5 SK |
579 | } |
580 | else | |
581 | { | |
582 | int source_port = 0, serv_port = NAMESERVER_PORT; | |
583 | char *portno, *source; | |
584 | ||
585 | if ((source = strchr(optarg, '@'))) /* is there a source. */ | |
586 | { | |
587 | *source = 0; | |
588 | if ((portno = strchr(source+1, '#'))) | |
589 | { | |
590 | *portno = 0; | |
a222641c | 591 | if (!atoi_check(portno+1, &source_port)) |
36717eee SK |
592 | { |
593 | option = '?'; | |
594 | problem = "bad port"; | |
595 | } | |
9e4abcb5 SK |
596 | } |
597 | } | |
598 | ||
599 | if ((portno = strchr(optarg, '#'))) /* is there a port no. */ | |
600 | { | |
601 | *portno = 0; | |
a222641c | 602 | if (!atoi_check(portno+1, &serv_port)) |
36717eee SK |
603 | { |
604 | option = '?'; | |
605 | problem = "bad port"; | |
606 | } | |
9e4abcb5 SK |
607 | } |
608 | ||
609 | #ifdef HAVE_IPV6 | |
610 | if (inet_pton(AF_INET, optarg, &newlist->addr.in.sin_addr)) | |
611 | #else | |
612 | if ((newlist->addr.in.sin_addr.s_addr = inet_addr(optarg)) != (in_addr_t) -1) | |
613 | #endif | |
614 | { | |
615 | newlist->addr.in.sin_port = htons(serv_port); | |
616 | newlist->source_addr.in.sin_port = htons(source_port); | |
617 | newlist->addr.sa.sa_family = newlist->source_addr.sa.sa_family = AF_INET; | |
618 | #ifdef HAVE_SOCKADDR_SA_LEN | |
619 | newlist->source_addr.in.sin_len = newlist->addr.in.sin_len = sizeof(struct sockaddr_in); | |
620 | #endif | |
621 | if (source) | |
622 | { | |
623 | #ifdef HAVE_IPV6 | |
624 | if (inet_pton(AF_INET, source+1, &newlist->source_addr.in.sin_addr)) | |
625 | #else | |
626 | if ((newlist->source_addr.in.sin_addr.s_addr = inet_addr(source+1)) != (in_addr_t) -1) | |
627 | #endif | |
628 | newlist->flags |= SERV_HAS_SOURCE; | |
629 | else | |
630 | option = '?'; /* error */ | |
631 | } | |
632 | else | |
633 | newlist->source_addr.in.sin_addr.s_addr = INADDR_ANY; | |
634 | } | |
635 | #ifdef HAVE_IPV6 | |
636 | else if (inet_pton(AF_INET6, optarg, &newlist->addr.in6.sin6_addr)) | |
637 | { | |
638 | newlist->addr.in6.sin6_port = htons(serv_port); | |
639 | newlist->source_addr.in6.sin6_port = htons(source_port); | |
640 | newlist->addr.sa.sa_family = newlist->source_addr.sa.sa_family = AF_INET6; | |
641 | newlist->addr.in6.sin6_flowinfo = newlist->source_addr.in6.sin6_flowinfo = htonl(0); | |
642 | #ifdef HAVE_SOCKADDR_SA_LEN | |
643 | newlist->addr.in6.sin6_len = newlist->source_addr.in6.sin6_len = sizeof(struct sockaddr_in6); | |
644 | #endif | |
645 | if (source) | |
646 | { | |
647 | if (inet_pton(AF_INET6, source+1, &newlist->source_addr.in6.sin6_addr)) | |
648 | newlist->flags |= SERV_HAS_SOURCE; | |
649 | else | |
650 | option = '?'; /* error */ | |
651 | } | |
652 | else | |
653 | newlist->source_addr.in6.sin6_addr = in6addr_any; | |
654 | } | |
655 | #endif | |
656 | else | |
657 | option = '?'; /* error */ | |
658 | ||
659 | } | |
660 | ||
44a2a316 SK |
661 | if (option == '?') |
662 | while (newlist) | |
663 | { | |
664 | serv = newlist; | |
665 | newlist = newlist->next; | |
666 | free(serv); | |
667 | } | |
668 | else | |
9e4abcb5 | 669 | { |
44a2a316 SK |
670 | serv = newlist; |
671 | while (serv->next) | |
672 | { | |
673 | serv->next->flags = serv->flags; | |
674 | serv->next->addr = serv->addr; | |
675 | serv->next->source_addr = serv->source_addr; | |
676 | serv = serv->next; | |
677 | } | |
3be34541 SK |
678 | serv->next = daemon->servers; |
679 | daemon->servers = newlist; | |
9e4abcb5 | 680 | } |
9e4abcb5 SK |
681 | break; |
682 | } | |
683 | ||
684 | case 'c': | |
685 | { | |
a222641c SK |
686 | int size; |
687 | if (!atoi_check(optarg, &size)) | |
688 | option = '?'; | |
689 | else | |
690 | { | |
691 | /* zero is OK, and means no caching. */ | |
692 | ||
693 | if (size < 0) | |
694 | size = 0; | |
695 | else if (size > 10000) | |
696 | size = 10000; | |
697 | ||
3be34541 | 698 | daemon->cachesize = size; |
a222641c | 699 | } |
9e4abcb5 SK |
700 | break; |
701 | } | |
702 | ||
703 | case 'p': | |
3be34541 | 704 | if (!atoi_check(optarg, &daemon->port)) |
a222641c | 705 | option = '?'; |
9e4abcb5 SK |
706 | break; |
707 | ||
feba5c1d SK |
708 | case 'P': |
709 | { | |
710 | int i; | |
711 | if (!atoi_check(optarg, &i)) | |
712 | option = '?'; | |
3be34541 | 713 | daemon->edns_pktsz = (unsigned short)i; |
feba5c1d SK |
714 | break; |
715 | } | |
716 | ||
9e4abcb5 | 717 | case 'Q': |
3be34541 | 718 | if (!atoi_check(optarg, &daemon->query_port)) |
a222641c | 719 | option = '?'; |
9e4abcb5 SK |
720 | break; |
721 | ||
722 | case 'T': | |
a222641c SK |
723 | { |
724 | int ttl; | |
725 | if (!atoi_check(optarg, &ttl)) | |
726 | option = '?'; | |
727 | else | |
3be34541 | 728 | daemon->local_ttl = (unsigned long)ttl; |
a222641c SK |
729 | break; |
730 | } | |
9e4abcb5 | 731 | |
44a2a316 | 732 | case 'X': |
3be34541 | 733 | if (!atoi_check(optarg, &daemon->dhcp_max)) |
a222641c | 734 | option = '?'; |
44a2a316 SK |
735 | break; |
736 | ||
9e4abcb5 SK |
737 | case 'F': |
738 | { | |
44a2a316 | 739 | int k, leasepos = 2; |
26128d27 | 740 | char *cp, *a[5] = { NULL, NULL, NULL, NULL, NULL }; |
9e4abcb5 SK |
741 | struct dhcp_context *new = safe_malloc(sizeof(struct dhcp_context)); |
742 | ||
3be34541 | 743 | new->next = daemon->dhcp; |
feba5c1d SK |
744 | new->lease_time = DEFLEASE; |
745 | new->addr_epoch = 0; | |
44a2a316 SK |
746 | new->netmask.s_addr = 0; |
747 | new->broadcast.s_addr = 0; | |
3be34541 | 748 | new->router.s_addr = 0; |
a222641c | 749 | new->netid.net = NULL; |
3be34541 | 750 | new->static_only = 0; |
9e4abcb5 | 751 | |
36717eee SK |
752 | problem = "bad dhcp-range"; |
753 | ||
44a2a316 SK |
754 | for (cp = optarg; *cp; cp++) |
755 | if (!(*cp == ' ' || *cp == '.' || (*cp >='0' && *cp <= '9'))) | |
9e4abcb5 | 756 | break; |
44a2a316 SK |
757 | |
758 | if (*cp != ',' && (comma = strchr(optarg, ','))) | |
759 | { | |
760 | *comma = 0; | |
a222641c | 761 | new->netid.net = safe_string_alloc(optarg); |
44a2a316 | 762 | a[0] = comma + 1; |
9e4abcb5 | 763 | } |
44a2a316 SK |
764 | else |
765 | a[0] = optarg; | |
766 | ||
9e4abcb5 | 767 | |
44a2a316 SK |
768 | for (k = 1; k < 5; k++) |
769 | { | |
770 | if (!(a[k] = strchr(a[k-1], ','))) | |
771 | break; | |
772 | *(a[k]++) = 0; | |
773 | } | |
774 | ||
33820b7e SK |
775 | if ((k < 2) || ((new->start.s_addr = inet_addr(a[0])) == (in_addr_t)-1)) |
776 | option = '?'; | |
777 | else if (strcmp(a[1], "static") == 0) | |
3be34541 SK |
778 | { |
779 | new->end = new->start; | |
780 | new->static_only = 1; | |
781 | } | |
33820b7e SK |
782 | else if ((new->end.s_addr = inet_addr(a[1])) == (in_addr_t)-1) |
783 | option = '?'; | |
784 | ||
3be34541 SK |
785 | if (ntohl(new->start.s_addr) > ntohl(new->end.s_addr)) |
786 | { | |
787 | struct in_addr tmp = new->start; | |
788 | new->start = new->end; | |
789 | new->end = tmp; | |
790 | } | |
791 | ||
36717eee SK |
792 | if (option != '?' && k >= 3 && strchr(a[2], '.') && |
793 | ((new->netmask.s_addr = inet_addr(a[2])) != (in_addr_t)-1)) | |
794 | { | |
795 | leasepos = 3; | |
796 | if (!is_same_net(new->start, new->end, new->netmask)) | |
797 | { | |
798 | problem = "inconsistent DHCP range"; | |
799 | option = '?'; | |
800 | } | |
801 | } | |
802 | ||
33820b7e | 803 | if (option == '?') |
9e4abcb5 | 804 | { |
44a2a316 SK |
805 | free(new); |
806 | break; | |
807 | } | |
808 | else | |
3be34541 | 809 | daemon->dhcp = new; |
36717eee | 810 | |
44a2a316 SK |
811 | if (k >= 4 && strchr(a[3], '.') && |
812 | ((new->broadcast.s_addr = inet_addr(a[3])) != (in_addr_t)-1)) | |
813 | leasepos = 4; | |
814 | ||
815 | if (k >= leasepos+1) | |
816 | { | |
817 | if (strcmp(a[leasepos], "infinite") == 0) | |
9e4abcb5 SK |
818 | new->lease_time = 0xffffffff; |
819 | else | |
820 | { | |
821 | int fac = 1; | |
44a2a316 | 822 | if (strlen(a[leasepos]) > 0) |
9e4abcb5 | 823 | { |
44a2a316 | 824 | switch (a[leasepos][strlen(a[leasepos]) - 1]) |
9e4abcb5 SK |
825 | { |
826 | case 'h': | |
827 | case 'H': | |
828 | fac *= 60; | |
829 | /* fall through */ | |
830 | case 'm': | |
831 | case 'M': | |
832 | fac *= 60; | |
44a2a316 SK |
833 | /* fall through */ |
834 | case 's': | |
835 | case 'S': | |
836 | a[leasepos][strlen(a[leasepos]) - 1] = 0; | |
9e4abcb5 SK |
837 | } |
838 | ||
44a2a316 | 839 | new->lease_time = atoi(a[leasepos]) * fac; |
9e4abcb5 SK |
840 | } |
841 | } | |
842 | } | |
44a2a316 | 843 | |
3be34541 SK |
844 | if (new->lease_time < daemon->min_leasetime) |
845 | daemon->min_leasetime = new->lease_time; | |
9e4abcb5 SK |
846 | break; |
847 | } | |
848 | ||
849 | case 'G': | |
850 | { | |
851 | int j, k; | |
33820b7e | 852 | char *a[6] = { NULL, NULL, NULL, NULL, NULL, NULL }; |
9e4abcb5 SK |
853 | unsigned int e0, e1, e2, e3, e4, e5; |
854 | struct dhcp_config *new = safe_malloc(sizeof(struct dhcp_config)); | |
855 | struct in_addr in; | |
856 | ||
3be34541 | 857 | new->next = daemon->dhcp_conf; |
33820b7e SK |
858 | new->flags = 0; |
859 | ||
9e4abcb5 SK |
860 | |
861 | a[0] = optarg; | |
33820b7e | 862 | for (k = 1; k < 6; k++) |
9e4abcb5 SK |
863 | { |
864 | if (!(a[k] = strchr(a[k-1], ','))) | |
865 | break; | |
866 | *(a[k]++) = 0; | |
867 | } | |
868 | ||
869 | for(j = 0; j < k; j++) | |
33820b7e | 870 | if (strchr(a[j], ':')) /* ethernet address, netid or binary CLID */ |
9e4abcb5 SK |
871 | { |
872 | char *arg = a[j]; | |
873 | if ((arg[0] == 'i' || arg[0] == 'I') && | |
874 | (arg[1] == 'd' || arg[1] == 'D') && | |
875 | arg[2] == ':') | |
876 | { | |
a84fa1d0 SK |
877 | if (arg[3] == '*') |
878 | new->flags |= CONFIG_NOCLID; | |
879 | else | |
9e4abcb5 | 880 | { |
a84fa1d0 SK |
881 | int len; |
882 | arg += 3; /* dump id: */ | |
883 | if (strchr(arg, ':')) | |
9e4abcb5 | 884 | { |
a84fa1d0 SK |
885 | /* decode hex in place */ |
886 | char *p = arg, *q = arg, *r; | |
887 | while (*p) | |
33820b7e | 888 | { |
a84fa1d0 SK |
889 | for (r = p; *r && *r != ':'; r++); |
890 | if (*r) | |
33820b7e | 891 | { |
a84fa1d0 SK |
892 | if (r != p) |
893 | { | |
894 | *r = 0; | |
895 | *(q++) = strtol(p, NULL, 16); | |
896 | } | |
897 | p = r+1; | |
898 | } | |
899 | else | |
900 | { | |
901 | if (*p) | |
902 | *(q++) = strtol(p, NULL, 16); | |
903 | break; | |
33820b7e | 904 | } |
33820b7e | 905 | } |
a84fa1d0 | 906 | len = q - arg; |
9e4abcb5 | 907 | } |
a84fa1d0 SK |
908 | else |
909 | len = strlen(arg); | |
910 | ||
911 | new->flags |= CONFIG_CLID; | |
912 | new->clid_len = len; | |
913 | new->clid = safe_malloc(len); | |
914 | memcpy(new->clid, arg, len); | |
9e4abcb5 | 915 | } |
9e4abcb5 | 916 | } |
26128d27 | 917 | else if (strstr(arg, "net:") == arg) |
33820b7e SK |
918 | { |
919 | new->flags |= CONFIG_NETID; | |
a222641c | 920 | new->netid.net = safe_string_alloc(arg+4); |
33820b7e | 921 | } |
9e4abcb5 SK |
922 | else if (sscanf(a[j], "%x:%x:%x:%x:%x:%x", |
923 | &e0, &e1, &e2, &e3, &e4, &e5) == 6) | |
924 | { | |
33820b7e | 925 | new->flags |= CONFIG_HWADDR; |
9e4abcb5 SK |
926 | new->hwaddr[0] = e0; |
927 | new->hwaddr[1] = e1; | |
928 | new->hwaddr[2] = e2; | |
929 | new->hwaddr[3] = e3; | |
930 | new->hwaddr[4] = e4; | |
931 | new->hwaddr[5] = e5; | |
932 | } | |
933 | else | |
934 | option = '?'; | |
935 | } | |
936 | else if (strchr(a[j], '.') && (in.s_addr = inet_addr(a[j])) != (in_addr_t)-1) | |
33820b7e SK |
937 | { |
938 | new->addr = in; | |
939 | new->flags |= CONFIG_ADDR; | |
940 | } | |
9e4abcb5 SK |
941 | else |
942 | { | |
943 | char *cp, *lastp = NULL, last = 0; | |
944 | int fac = 1; | |
945 | ||
946 | if (strlen(a[j]) > 1) | |
947 | { | |
948 | lastp = a[j] + strlen(a[j]) - 1; | |
949 | last = *lastp; | |
950 | switch (last) | |
951 | { | |
952 | case 'h': | |
953 | case 'H': | |
1ab84e2f SK |
954 | fac *= 60; |
955 | /* fall through */ | |
9e4abcb5 SK |
956 | case 'm': |
957 | case 'M': | |
958 | fac *= 60; | |
44a2a316 SK |
959 | /* fall through */ |
960 | case 's': | |
961 | case 'S': | |
9e4abcb5 SK |
962 | *lastp = 0; |
963 | } | |
964 | } | |
965 | ||
966 | for (cp = a[j]; *cp; cp++) | |
1ab84e2f | 967 | if (!isdigit(*cp) && *cp != ' ') |
9e4abcb5 SK |
968 | break; |
969 | ||
970 | if (*cp) | |
971 | { | |
972 | if (lastp) | |
973 | *lastp = last; | |
974 | if (strcmp(a[j], "infinite") == 0) | |
33820b7e SK |
975 | { |
976 | new->lease_time = 0xffffffff; | |
977 | new->flags |= CONFIG_TIME; | |
978 | } | |
979 | else if (strcmp(a[j], "ignore") == 0) | |
980 | new->flags |= CONFIG_DISABLE; | |
9e4abcb5 | 981 | else |
33820b7e SK |
982 | { |
983 | new->hostname = safe_string_alloc(a[j]); | |
984 | new->flags |= CONFIG_NAME; | |
985 | } | |
9e4abcb5 SK |
986 | } |
987 | else | |
33820b7e SK |
988 | { |
989 | new->lease_time = atoi(a[j]) * fac; | |
990 | new->flags |= CONFIG_TIME; | |
991 | } | |
9e4abcb5 | 992 | } |
44a2a316 SK |
993 | |
994 | if (option == '?') | |
33820b7e | 995 | { |
36717eee | 996 | problem = "bad dhcp-host"; |
33820b7e SK |
997 | if (new->flags & CONFIG_NAME) |
998 | free(new->hostname); | |
999 | if (new->flags & CONFIG_CLID) | |
1000 | free(new->clid); | |
1001 | if (new->flags & CONFIG_NETID) | |
a222641c | 1002 | free(new->netid.net); |
33820b7e SK |
1003 | free(new); |
1004 | } | |
44a2a316 | 1005 | else |
8a911ccc | 1006 | { |
3be34541 SK |
1007 | if ((new->flags & CONFIG_TIME) && new->lease_time < daemon->min_leasetime) |
1008 | daemon->min_leasetime = new->lease_time; | |
1009 | daemon->dhcp_conf = new; | |
8a911ccc | 1010 | } |
9e4abcb5 SK |
1011 | break; |
1012 | } | |
1013 | ||
1014 | case 'O': | |
1015 | { | |
1016 | struct dhcp_opt *new = safe_malloc(sizeof(struct dhcp_opt)); | |
26128d27 | 1017 | char *cp; |
33820b7e | 1018 | int addrs, digs, is_addr, is_hex, is_dec; |
9e4abcb5 | 1019 | |
3be34541 | 1020 | new->next = daemon->dhcp_opts; |
1ab84e2f SK |
1021 | new->len = 0; |
1022 | new->is_addr = 0; | |
44a2a316 | 1023 | new->netid = NULL; |
fd9fa481 | 1024 | new->val = NULL; |
44a2a316 SK |
1025 | |
1026 | if ((comma = strchr(optarg, ','))) | |
1027 | { | |
26128d27 | 1028 | struct dhcp_netid *np = NULL; |
fd9fa481 | 1029 | *comma++ = 0; |
44a2a316 | 1030 | |
26128d27 SK |
1031 | do { |
1032 | for (cp = optarg; *cp; cp++) | |
1033 | if (!(*cp == ' ' || (*cp >='0' && *cp <= '9'))) | |
1034 | break; | |
1035 | if (!*cp) | |
44a2a316 | 1036 | break; |
26128d27 SK |
1037 | |
1038 | new->netid = safe_malloc(sizeof (struct dhcp_netid)); | |
1039 | new->netid->net = safe_string_alloc(optarg); | |
1040 | new->netid->next = np; | |
1041 | np = new->netid; | |
1042 | optarg = comma; | |
1043 | if ((comma = strchr(optarg, ','))) | |
1044 | *comma++ = 0; | |
1045 | } while (optarg); | |
44a2a316 | 1046 | } |
9e4abcb5 | 1047 | |
26128d27 | 1048 | if (!optarg || (new->opt = atoi(optarg)) == 0) |
9e4abcb5 SK |
1049 | { |
1050 | option = '?'; | |
26128d27 | 1051 | problem = "bad dhcp-option"; |
9e4abcb5 | 1052 | } |
fd9fa481 SK |
1053 | else if (comma && new->opt == 119) |
1054 | { | |
1055 | /* dns search, RFC 3397 */ | |
1056 | unsigned char *q, *r, *tail; | |
1057 | unsigned char *p = NULL; | |
1058 | int newlen, len = 0; | |
1059 | ||
1060 | optarg = comma; | |
1061 | if ((comma = strchr(optarg, ','))) | |
1062 | *(comma++) = 0; | |
1063 | ||
1064 | while (optarg && *optarg) | |
33820b7e | 1065 | { |
fd9fa481 SK |
1066 | if (!canonicalise(optarg)) |
1067 | { | |
1068 | option = '?'; | |
26128d27 | 1069 | problem = "bad domain in dhcp-option"; |
fd9fa481 SK |
1070 | break; |
1071 | } | |
1072 | ||
1073 | if (!(r = realloc(p, len + strlen(optarg) + 2))) | |
1074 | die("could not get memory", NULL); | |
1075 | p = memmove(r, p, len); | |
1076 | ||
1077 | q = p + len; | |
1078 | ||
1079 | /* add string on the end in RFC1035 format */ | |
1080 | while (*optarg) | |
1081 | { | |
1082 | char *cp = q++; | |
1083 | int j; | |
1084 | for (j = 0; *optarg && (*optarg != '.'); optarg++, j++) | |
1085 | *q++ = *optarg; | |
1086 | *cp = j; | |
1087 | if (*optarg) | |
1088 | optarg++; | |
1089 | } | |
1090 | *q++ = 0; | |
1091 | ||
1092 | /* Now tail-compress using earlier names. */ | |
1093 | newlen = q - p; | |
1094 | for (tail = p + len; *tail; tail += (*tail) + 1) | |
1095 | for (r = p; r - p < len; r += (*r) + 1) | |
1096 | if (strcmp(r, tail) == 0) | |
1097 | { | |
1098 | PUTSHORT((r - p) | 0xc000, tail); | |
1099 | newlen = tail - p; | |
1100 | goto end; | |
1101 | } | |
1102 | end: | |
1103 | len = newlen; | |
1104 | ||
1105 | optarg = comma; | |
1106 | if (optarg && (comma = strchr(optarg, ','))) | |
1107 | *(comma++) = 0; | |
33820b7e | 1108 | } |
fd9fa481 SK |
1109 | |
1110 | new->len = len; | |
1111 | new->val = p; | |
1112 | } | |
1113 | else if (comma) | |
9e4abcb5 | 1114 | { |
fd9fa481 SK |
1115 | /* not option 119 */ |
1116 | /* characterise the value */ | |
1117 | is_addr = is_hex = is_dec = 1; | |
1118 | addrs = digs = 1; | |
1119 | for (cp = comma; *cp; cp++) | |
1120 | if (*cp == ',') | |
1121 | { | |
1122 | addrs++; | |
1123 | is_dec = is_hex = 0; | |
1124 | } | |
1125 | else if (*cp == ':') | |
1126 | { | |
1127 | digs++; | |
1128 | is_dec = is_addr = 0; | |
1129 | } | |
1130 | else if (*cp == '.') | |
1131 | is_dec = is_hex = 0; | |
26128d27 | 1132 | else if (!((*cp >='0' && *cp <= '9') || *cp == '-')) |
fd9fa481 SK |
1133 | { |
1134 | is_dec = is_addr = 0; | |
1135 | if (!((*cp >='A' && *cp <= 'F') || | |
1136 | (*cp >='a' && *cp <= 'f'))) | |
1137 | is_hex = 0; | |
1138 | } | |
1139 | ||
1140 | if (is_hex && digs > 1) | |
33820b7e | 1141 | { |
fd9fa481 SK |
1142 | char *p = comma, *q, *r; |
1143 | new->len = digs; | |
1144 | q = new->val = safe_malloc(new->len); | |
1145 | while (*p) | |
33820b7e | 1146 | { |
fd9fa481 SK |
1147 | for (r = p; *r && *r != ':'; r++); |
1148 | if (*r) | |
1149 | { | |
1150 | if (r != p) | |
1151 | { | |
1152 | *r = 0; | |
1153 | *(q++) = strtol(p, NULL, 16); | |
1154 | } | |
1155 | p = r+1; | |
1156 | } | |
1157 | else | |
33820b7e | 1158 | { |
fd9fa481 SK |
1159 | if (*p) |
1160 | *(q++) = strtol(p, NULL, 16); | |
1161 | break; | |
33820b7e | 1162 | } |
fd9fa481 SK |
1163 | } |
1164 | } | |
1165 | else if (is_dec) | |
1166 | { | |
26128d27 SK |
1167 | int i, val = atoi(comma); |
1168 | /* assume numeric arg is 1 byte except for | |
1169 | options where it is known otherwise. */ | |
1170 | switch (new->opt) | |
fd9fa481 | 1171 | { |
26128d27 | 1172 | default: |
fd9fa481 | 1173 | new->len = 1; |
26128d27 SK |
1174 | break; |
1175 | case 13: case 22: case 25: case 26: | |
fd9fa481 | 1176 | new->len = 2; |
26128d27 SK |
1177 | break; |
1178 | case 2: case 24: case 35: case 38: | |
fd9fa481 | 1179 | new->len = 4; |
26128d27 | 1180 | break; |
33820b7e | 1181 | } |
26128d27 SK |
1182 | new->val = safe_malloc(new->len); |
1183 | for (i=0; i<new->len; i++) | |
1184 | new->val[i] = val>>((new->len - i - 1)*8); | |
33820b7e | 1185 | } |
fd9fa481 | 1186 | else if (is_addr) |
9e4abcb5 | 1187 | { |
fd9fa481 SK |
1188 | struct in_addr in; |
1189 | unsigned char *op; | |
1190 | new->len = INADDRSZ * addrs; | |
1191 | new->val = op = safe_malloc(new->len); | |
1192 | new->is_addr = 1; | |
1193 | while (addrs--) | |
1194 | { | |
1195 | cp = comma; | |
1196 | if ((comma = strchr(cp, ','))) | |
1197 | *comma++ = 0; | |
1198 | in.s_addr = inet_addr(cp); | |
1199 | memcpy(op, &in, INADDRSZ); | |
1200 | op += INADDRSZ; | |
1201 | } | |
1ab84e2f SK |
1202 | } |
1203 | else | |
1204 | { | |
fd9fa481 SK |
1205 | /* text arg */ |
1206 | new->len = strlen(comma); | |
1207 | new->val = safe_malloc(new->len); | |
1208 | memcpy(new->val, comma, new->len); | |
9e4abcb5 SK |
1209 | } |
1210 | } | |
fd9fa481 SK |
1211 | |
1212 | if (new->len > 256) | |
33820b7e | 1213 | { |
fd9fa481 SK |
1214 | option = '?'; |
1215 | problem = "dhcp-option too long"; | |
33820b7e | 1216 | } |
fd9fa481 SK |
1217 | |
1218 | if (option == '?') | |
33820b7e | 1219 | { |
fd9fa481 SK |
1220 | if (new->netid) |
1221 | free(new->netid); | |
1222 | if (new->val) | |
1223 | free(new->val); | |
1224 | free(new); | |
33820b7e | 1225 | } |
fd9fa481 SK |
1226 | else |
1227 | daemon->dhcp_opts = new; | |
1228 | ||
9e4abcb5 SK |
1229 | break; |
1230 | } | |
1231 | ||
1232 | case 'M': | |
1233 | { | |
26128d27 SK |
1234 | struct dhcp_netid *id = NULL; |
1235 | while (optarg && strstr(optarg, "net:") == optarg) | |
1236 | { | |
1237 | struct dhcp_netid *newid = safe_malloc(sizeof(struct dhcp_netid)); | |
1238 | newid->next = id; | |
1239 | id = newid; | |
1240 | if ((comma = strchr(optarg, ','))) | |
1241 | *comma++ = 0; | |
1242 | newid->net = safe_string_alloc(optarg+4); | |
1243 | optarg = comma; | |
1244 | }; | |
9e4abcb5 | 1245 | |
26128d27 SK |
1246 | if (!optarg) |
1247 | option = '?'; | |
1248 | else | |
9e4abcb5 | 1249 | { |
26128d27 SK |
1250 | char *dhcp_file, *dhcp_sname = NULL; |
1251 | struct in_addr dhcp_next_server; | |
9e4abcb5 | 1252 | if ((comma = strchr(optarg, ','))) |
26128d27 SK |
1253 | *comma++ = 0; |
1254 | dhcp_file = safe_string_alloc(optarg); | |
1255 | dhcp_next_server.s_addr = 0; | |
1256 | if (comma) | |
1257 | { | |
1258 | optarg = comma; | |
1259 | if ((comma = strchr(optarg, ','))) | |
1260 | *comma++ = 0; | |
1261 | dhcp_sname = safe_string_alloc(optarg); | |
1262 | if (comma && (dhcp_next_server.s_addr = inet_addr(comma)) == (in_addr_t)-1) | |
1263 | option = '?'; | |
1264 | } | |
1265 | if (option != '?') | |
1266 | { | |
1267 | struct dhcp_boot *new = safe_malloc(sizeof(struct dhcp_boot)); | |
1268 | new->file = dhcp_file; | |
1269 | new->sname = dhcp_sname; | |
1270 | new->next_server = dhcp_next_server; | |
1271 | new->netid = id; | |
1272 | new->next = daemon->boot_config; | |
1273 | daemon->boot_config = new; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | if (option == '?') | |
1278 | { | |
1279 | struct dhcp_netid *tmp; | |
1280 | for (; id; id = tmp) | |
1281 | { | |
1282 | tmp = id->next; | |
1283 | free(id); | |
1284 | } | |
9e4abcb5 SK |
1285 | } |
1286 | break; | |
1287 | } | |
1cff166d | 1288 | |
a84fa1d0 | 1289 | case 'U': |
a222641c | 1290 | case 'j': |
a84fa1d0 | 1291 | { |
a84fa1d0 SK |
1292 | if (!(comma = strchr(optarg, ','))) |
1293 | option = '?'; | |
1294 | else | |
1295 | { | |
1296 | struct dhcp_vendor *new = safe_malloc(sizeof(struct dhcp_vendor)); | |
1297 | *comma = 0; | |
a222641c | 1298 | new->netid.net = safe_string_alloc(optarg); |
a84fa1d0 SK |
1299 | new->len = strlen(comma+1); |
1300 | new->data = safe_malloc(new->len); | |
1301 | memcpy(new->data, comma+1, new->len); | |
a222641c | 1302 | new->is_vendor = (option == 'U'); |
3be34541 SK |
1303 | new->next = daemon->dhcp_vendors; |
1304 | daemon->dhcp_vendors = new; | |
a84fa1d0 SK |
1305 | } |
1306 | break; | |
1307 | } | |
26128d27 SK |
1308 | |
1309 | case 'J': | |
1310 | { | |
1311 | struct dhcp_netid_list *new = safe_malloc(sizeof(struct dhcp_netid_list)); | |
1312 | struct dhcp_netid *list = NULL; | |
1313 | new->next = daemon->dhcp_ignore; | |
1314 | daemon->dhcp_ignore = new; | |
1315 | do { | |
1316 | struct dhcp_netid *member = safe_malloc(sizeof(struct dhcp_netid)); | |
1317 | if ((comma = strchr(optarg, ','))) | |
1318 | *comma++ = 0; | |
1319 | member->next = list; | |
1320 | list = member; | |
1321 | member->net = safe_string_alloc(optarg); | |
1322 | optarg = comma; | |
1323 | } while (optarg); | |
1324 | ||
1325 | new->list = list; | |
1326 | break; | |
1327 | } | |
1328 | ||
1cff166d SK |
1329 | case 'V': |
1330 | { | |
1331 | char *a[3] = { NULL, NULL, NULL }; | |
1332 | int k; | |
1333 | struct in_addr in, out, mask; | |
1334 | struct doctor *new; | |
1335 | ||
1336 | mask.s_addr = 0xffffffff; | |
1337 | ||
1338 | a[0] = optarg; | |
1339 | for (k = 1; k < 4; k++) | |
1340 | { | |
1341 | if (!(a[k] = strchr(a[k-1], ','))) | |
1342 | break; | |
1343 | *(a[k]++) = 0; | |
1344 | } | |
1345 | ||
1346 | if ((k < 2) || | |
1347 | ((in.s_addr = inet_addr(a[0])) == (in_addr_t)-1) || | |
1348 | ((out.s_addr = inet_addr(a[1])) == (in_addr_t)-1)) | |
1349 | { | |
1350 | option = '?'; | |
1351 | break; | |
1352 | } | |
1353 | ||
1354 | if (k == 3) | |
1355 | mask.s_addr = inet_addr(a[2]); | |
1356 | ||
1357 | new = safe_malloc(sizeof(struct doctor)); | |
1358 | new->in = in; | |
1359 | new->out = out; | |
1360 | new->mask = mask; | |
3be34541 SK |
1361 | new->next = daemon->doctors; |
1362 | daemon->doctors = new; | |
1cff166d SK |
1363 | |
1364 | break; | |
1365 | } | |
9e4abcb5 SK |
1366 | } |
1367 | } | |
1368 | ||
1369 | if (option == '?') | |
1370 | { | |
1371 | if (f) | |
44a2a316 | 1372 | { |
36717eee SK |
1373 | sprintf(buff, "%s at line %d of %s ", |
1374 | problem ? problem : "error", lineno, conffile); | |
44a2a316 SK |
1375 | complain(buff, NULL); |
1376 | } | |
9e4abcb5 | 1377 | else |
26128d27 | 1378 | #ifdef HAVE_GETOPT_LONG |
36717eee | 1379 | die("bad command line options: %s.", problem ? problem : "try --help"); |
26128d27 SK |
1380 | #else |
1381 | die("bad command line options: %s.", problem ? problem : "try -w"); | |
1382 | #endif | |
9e4abcb5 SK |
1383 | } |
1384 | } | |
1385 | ||
1386 | /* port might no be known when the address is parsed - fill in here */ | |
3be34541 | 1387 | if (daemon->servers) |
9e4abcb5 SK |
1388 | { |
1389 | struct server *tmp; | |
3be34541 | 1390 | for (tmp = daemon->servers; tmp; tmp = tmp->next) |
9e4abcb5 SK |
1391 | if (!(tmp->flags & SERV_HAS_SOURCE)) |
1392 | { | |
1393 | if (tmp->source_addr.sa.sa_family == AF_INET) | |
3be34541 | 1394 | tmp->source_addr.in.sin_port = htons(daemon->query_port); |
9e4abcb5 SK |
1395 | #ifdef HAVE_IPV6 |
1396 | else if (tmp->source_addr.sa.sa_family == AF_INET6) | |
3be34541 | 1397 | tmp->source_addr.in6.sin6_port = htons(daemon->query_port); |
9e4abcb5 SK |
1398 | #endif |
1399 | } | |
1400 | } | |
1401 | ||
3be34541 | 1402 | if (daemon->if_addrs) |
9e4abcb5 SK |
1403 | { |
1404 | struct iname *tmp; | |
3be34541 | 1405 | for(tmp = daemon->if_addrs; tmp; tmp = tmp->next) |
9e4abcb5 | 1406 | if (tmp->addr.sa.sa_family == AF_INET) |
3be34541 | 1407 | tmp->addr.in.sin_port = htons(daemon->port); |
9e4abcb5 SK |
1408 | #ifdef HAVE_IPV6 |
1409 | else if (tmp->addr.sa.sa_family == AF_INET6) | |
3be34541 | 1410 | tmp->addr.in6.sin6_port = htons(daemon->port); |
9e4abcb5 SK |
1411 | #endif /* IPv6 */ |
1412 | } | |
1413 | ||
1414 | /* only one of these need be specified: the other defaults to the | |
1415 | host-name */ | |
3be34541 | 1416 | if ((daemon->options & OPT_LOCALMX) || daemon->mxnames || daemon->mxtarget) |
9e4abcb5 SK |
1417 | { |
1418 | if (gethostname(buff, MAXDNAME) == -1) | |
1419 | die("cannot get host-name: %s", NULL); | |
1420 | ||
3be34541 | 1421 | if (!daemon->mxnames) |
de37951c | 1422 | { |
3be34541 SK |
1423 | daemon->mxnames = safe_malloc(sizeof(struct mx_record)); |
1424 | daemon->mxnames->next = NULL; | |
1425 | daemon->mxnames->mxtarget = NULL; | |
1426 | daemon->mxnames->mxname = safe_string_alloc(buff); | |
1427 | } | |
9e4abcb5 | 1428 | |
3be34541 SK |
1429 | if (!daemon->mxtarget) |
1430 | daemon->mxtarget = safe_string_alloc(buff); | |
9e4abcb5 SK |
1431 | } |
1432 | ||
3be34541 SK |
1433 | if (daemon->options & OPT_NO_RESOLV) |
1434 | daemon->resolv_files = 0; | |
1435 | else if (daemon->resolv_files && (daemon->resolv_files)->next && (daemon->options & OPT_NO_POLL)) | |
9e4abcb5 | 1436 | die("only one resolv.conf file allowed in no-poll mode.", NULL); |
de37951c | 1437 | |
3be34541 | 1438 | if (daemon->options & OPT_RESOLV_DOMAIN) |
de37951c SK |
1439 | { |
1440 | char *line; | |
1441 | ||
3be34541 | 1442 | if (!daemon->resolv_files || (daemon->resolv_files)->next) |
de37951c SK |
1443 | die("must have exactly one resolv.conf to read domain from.", NULL); |
1444 | ||
3be34541 SK |
1445 | if (!(f = fopen((daemon->resolv_files)->name, "r"))) |
1446 | die("failed to read %s: %m", (daemon->resolv_files)->name); | |
de37951c SK |
1447 | |
1448 | while ((line = fgets(buff, MAXDNAME, f))) | |
1449 | { | |
1450 | char *token = strtok(line, " \t\n\r"); | |
1451 | ||
1452 | if (!token || strcmp(token, "search") != 0) | |
1453 | continue; | |
1454 | ||
1455 | if ((token = strtok(NULL, " \t\n\r")) && | |
1456 | canonicalise(token) && | |
3be34541 | 1457 | (daemon->domain_suffix = safe_string_alloc(token))) |
de37951c SK |
1458 | break; |
1459 | } | |
3be34541 | 1460 | |
de37951c | 1461 | fclose(f); |
8a911ccc | 1462 | |
3be34541 SK |
1463 | if (!daemon->domain_suffix) |
1464 | die("no search directive found in %s", (daemon->resolv_files)->name); | |
de37951c SK |
1465 | } |
1466 | ||
3be34541 | 1467 | return daemon; |
9e4abcb5 SK |
1468 | } |
1469 | ||
1470 | ||
1471 |