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c47e3ba4 | 1 | /* dnsmasq is Copyright (c) 2000-2014 Simon Kelley |
824af85b | 2 | |
9e4abcb5 SK |
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 | |
824af85b SK |
5 | the Free Software Foundation; version 2 dated June, 1991, or |
6 | (at your option) version 3 dated 29 June, 2007. | |
7 | ||
9e4abcb5 SK |
8 | This program is distributed in the hope that it will be useful, |
9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | GNU General Public License for more details. | |
824af85b | 12 | |
73a08a24 SK |
13 | You should have received a copy of the GNU General Public License |
14 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
9e4abcb5 SK |
15 | */ |
16 | ||
c47e3ba4 | 17 | #define COPYRIGHT "Copyright (c) 2000-2014 Simon Kelley" |
9e4abcb5 | 18 | |
1a6bca81 | 19 | #ifndef NO_LARGEFILE |
9e038946 | 20 | /* Ensure we can use files >2GB (log files may grow this big) */ |
1a6bca81 SK |
21 | # define _LARGEFILE_SOURCE 1 |
22 | # define _FILE_OFFSET_BITS 64 | |
23 | #endif | |
9e038946 | 24 | |
8ef5ada2 SK |
25 | /* Get linux C library versions and define _GNU_SOURCE for kFreeBSD. */ |
26 | #if defined(__linux__) || defined(__GLIBC__) | |
572b41eb SK |
27 | # ifndef __ANDROID__ |
28 | # define _GNU_SOURCE | |
29 | # endif | |
9e038946 SK |
30 | # include <features.h> |
31 | #endif | |
32 | ||
316e2730 SK |
33 | /* Need these defined early */ |
34 | #if defined(__sun) || defined(__sun__) | |
35 | # define _XPG4_2 | |
36 | # define __EXTENSIONS__ | |
37 | #endif | |
38 | ||
9e4abcb5 | 39 | /* get these before config.h for IPv6 stuff... */ |
44a2a316 | 40 | #include <sys/types.h> |
1f15b81d | 41 | #include <sys/socket.h> |
c72daea8 SK |
42 | |
43 | #ifdef __APPLE__ | |
44 | /* Define before netinet/in.h to select API. OSX Lion onwards. */ | |
45 | # define __APPLE_USE_RFC_3542 | |
46 | #endif | |
9e4abcb5 SK |
47 | #include <netinet/in.h> |
48 | ||
c72daea8 | 49 | /* Also needed before config.h. */ |
59353a6b SK |
50 | #include <getopt.h> |
51 | ||
9e4abcb5 | 52 | #include "config.h" |
c3a04081 | 53 | #include "ip6addr.h" |
b8187c80 | 54 | |
572b41eb SK |
55 | typedef unsigned char u8; |
56 | typedef unsigned short u16; | |
57 | typedef unsigned int u32; | |
52b92f4d | 58 | typedef unsigned long long u64; |
572b41eb | 59 | |
28c62557 GB |
60 | #define countof(x) (long)(sizeof(x) / sizeof(x[0])) |
61 | #define MIN(a,b) ((a) < (b) ? (a) : (b)) | |
62 | ||
c239f7de SK |
63 | #include "dns-protocol.h" |
64 | #include "dhcp-protocol.h" | |
c72daea8 | 65 | #ifdef HAVE_DHCP6 |
c239f7de SK |
66 | #include "dhcp6-protocol.h" |
67 | #include "radv-protocol.h" | |
c72daea8 | 68 | #endif |
572b41eb | 69 | |
b8187c80 | 70 | #define gettext_noop(S) (S) |
824af85b | 71 | #ifndef LOCALEDIR |
b8187c80 SK |
72 | # define _(S) (S) |
73 | #else | |
74 | # include <libintl.h> | |
75 | # include <locale.h> | |
76 | # define _(S) gettext(S) | |
77 | #endif | |
78 | ||
9e4abcb5 SK |
79 | #include <arpa/inet.h> |
80 | #include <sys/stat.h> | |
9e4abcb5 | 81 | #include <sys/ioctl.h> |
824af85b | 82 | #if defined(HAVE_SOLARIS_NETWORK) |
316e2730 | 83 | # include <sys/sockio.h> |
824af85b | 84 | #endif |
9e4abcb5 | 85 | #include <sys/select.h> |
feba5c1d | 86 | #include <sys/wait.h> |
9e4abcb5 | 87 | #include <sys/time.h> |
f2621c7f | 88 | #include <sys/un.h> |
8a911ccc | 89 | #include <limits.h> |
9e4abcb5 | 90 | #include <net/if.h> |
316e2730 SK |
91 | #if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu) |
92 | /* Some solaris net/if./h omit this. */ | |
93 | # define ifr_mtu ifr_ifru.ifru_metric | |
94 | #endif | |
9e4abcb5 SK |
95 | #include <unistd.h> |
96 | #include <stdio.h> | |
97 | #include <string.h> | |
98 | #include <stdlib.h> | |
99 | #include <fcntl.h> | |
100 | #include <ctype.h> | |
101 | #include <signal.h> | |
9e038946 | 102 | #include <stddef.h> |
9e4abcb5 SK |
103 | #include <time.h> |
104 | #include <errno.h> | |
105 | #include <pwd.h> | |
106 | #include <grp.h> | |
f6b7dc47 | 107 | #include <stdarg.h> |
572b41eb | 108 | #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__) |
44a2a316 SK |
109 | # include <netinet/if_ether.h> |
110 | #else | |
111 | # include <net/ethernet.h> | |
112 | #endif | |
9e4abcb5 SK |
113 | #include <net/if_arp.h> |
114 | #include <netinet/in_systm.h> | |
115 | #include <netinet/ip.h> | |
3be34541 | 116 | #include <netinet/ip_icmp.h> |
5e9e0efb | 117 | #include <sys/uio.h> |
849a8357 SK |
118 | #include <syslog.h> |
119 | #include <dirent.h> | |
5e9e0efb | 120 | #ifndef HAVE_LINUX_NETWORK |
44a2a316 | 121 | # include <net/if_dl.h> |
9e4abcb5 | 122 | #endif |
5e9e0efb | 123 | |
824af85b | 124 | #if defined(HAVE_LINUX_NETWORK) |
5e9e0efb SK |
125 | #include <linux/capability.h> |
126 | /* There doesn't seem to be a universally-available | |
9e038946 | 127 | userpace header for these. */ |
5e9e0efb | 128 | extern int capset(cap_user_header_t header, cap_user_data_t data); |
9e038946 SK |
129 | extern int capget(cap_user_header_t header, cap_user_data_t data); |
130 | #define LINUX_CAPABILITY_VERSION_1 0x19980330 | |
131 | #define LINUX_CAPABILITY_VERSION_2 0x20071026 | |
1a6bca81 | 132 | #define LINUX_CAPABILITY_VERSION_3 0x20080522 |
9e038946 | 133 | |
5e9e0efb | 134 | #include <sys/prctl.h> |
7622fc06 | 135 | #elif defined(HAVE_SOLARIS_NETWORK) |
824af85b | 136 | #include <priv.h> |
5e9e0efb | 137 | #endif |
9e4abcb5 | 138 | |
824af85b | 139 | /* daemon is function in the C library.... */ |
5aabfc78 SK |
140 | #define daemon dnsmasq_daemon |
141 | ||
142 | /* Async event queue */ | |
143 | struct event_desc { | |
c72daea8 | 144 | int event, data, msg_sz; |
5aabfc78 SK |
145 | }; |
146 | ||
147 | #define EVENT_RELOAD 1 | |
148 | #define EVENT_DUMP 2 | |
149 | #define EVENT_ALARM 3 | |
150 | #define EVENT_TERM 4 | |
151 | #define EVENT_CHILD 5 | |
152 | #define EVENT_REOPEN 6 | |
153 | #define EVENT_EXITED 7 | |
154 | #define EVENT_KILLED 8 | |
155 | #define EVENT_EXEC_ERR 9 | |
156 | #define EVENT_PIPE_ERR 10 | |
9e038946 | 157 | #define EVENT_USER_ERR 11 |
1a6bca81 SK |
158 | #define EVENT_CAP_ERR 12 |
159 | #define EVENT_PIDFILE 13 | |
160 | #define EVENT_HUSER_ERR 14 | |
161 | #define EVENT_GROUP_ERR 15 | |
162 | #define EVENT_DIE 16 | |
163 | #define EVENT_LOG_ERR 17 | |
7622fc06 | 164 | #define EVENT_FORK_ERR 18 |
c72daea8 | 165 | #define EVENT_LUA_ERR 19 |
8b3ae2fd | 166 | #define EVENT_TFTP_ERR 20 |
e98bd52e | 167 | #define EVENT_INIT 21 |
a0358e5d | 168 | #define EVENT_NEWADDR 22 |
47a95169 | 169 | #define EVENT_NEWROUTE 23 |
5aabfc78 SK |
170 | |
171 | /* Exit codes. */ | |
172 | #define EC_GOOD 0 | |
173 | #define EC_BADCONF 1 | |
174 | #define EC_BADNET 2 | |
175 | #define EC_FILE 3 | |
176 | #define EC_NOMEM 4 | |
177 | #define EC_MISC 5 | |
178 | #define EC_INIT_OFFSET 10 | |
179 | ||
0a852541 SK |
180 | /* Min buffer size: we check after adding each record, so there must be |
181 | memory for the largest packet, and the largest record so the | |
182 | min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000. | |
183 | This might be increased is EDNS packet size if greater than the minimum. | |
cdeda28f SK |
184 | */ |
185 | #define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ | |
44a2a316 | 186 | |
572b41eb | 187 | /* Trust the compiler dead-code eliminator.... */ |
28866e95 SK |
188 | #define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32))) |
189 | ||
190 | #define OPT_BOGUSPRIV 0 | |
191 | #define OPT_FILTER 1 | |
192 | #define OPT_LOG 2 | |
193 | #define OPT_SELFMX 3 | |
194 | #define OPT_NO_HOSTS 4 | |
195 | #define OPT_NO_POLL 5 | |
196 | #define OPT_DEBUG 6 | |
197 | #define OPT_ORDER 7 | |
198 | #define OPT_NO_RESOLV 8 | |
199 | #define OPT_EXPAND 9 | |
200 | #define OPT_LOCALMX 10 | |
201 | #define OPT_NO_NEG 11 | |
202 | #define OPT_NODOTS_LOCAL 12 | |
203 | #define OPT_NOWILD 13 | |
204 | #define OPT_ETHERS 14 | |
205 | #define OPT_RESOLV_DOMAIN 15 | |
206 | #define OPT_NO_FORK 16 | |
207 | #define OPT_AUTHORITATIVE 17 | |
208 | #define OPT_LOCALISE 18 | |
209 | #define OPT_DBUS 19 | |
210 | #define OPT_DHCP_FQDN 20 | |
211 | #define OPT_NO_PING 21 | |
212 | #define OPT_LEASE_RO 22 | |
213 | #define OPT_ALL_SERVERS 23 | |
214 | #define OPT_RELOAD 24 | |
215 | #define OPT_LOCAL_REBIND 25 | |
216 | #define OPT_TFTP_SECURE 26 | |
217 | #define OPT_TFTP_NOBLOCK 27 | |
218 | #define OPT_LOG_OPTS 28 | |
219 | #define OPT_TFTP_APREF 29 | |
220 | #define OPT_NO_OVERRIDE 30 | |
221 | #define OPT_NO_REBIND 31 | |
222 | #define OPT_ADD_MAC 32 | |
237724c0 | 223 | #define OPT_DNSSEC_PROXY 33 |
7de060b0 SK |
224 | #define OPT_CONSEC_ADDR 34 |
225 | #define OPT_CONNTRACK 35 | |
c72daea8 | 226 | #define OPT_FQDN_UPDATE 36 |
c5ad4e79 | 227 | #define OPT_RA 37 |
61ce600b | 228 | #define OPT_TFTP_LC 38 |
54dd393f | 229 | #define OPT_CLEVERBIND 39 |
8bc4cece | 230 | #define OPT_TFTP 40 |
6bd3a09f | 231 | #define OPT_CLIENT_SUBNET 41 |
8c0b73d3 KDB |
232 | #define OPT_QUIET_DHCP 42 |
233 | #define OPT_QUIET_DHCP6 43 | |
234 | #define OPT_QUIET_RA 44 | |
3a237152 | 235 | #define OPT_DNSSEC_VALID 45 |
e98bd52e | 236 | #define OPT_DNSSEC_TIME 46 |
5b3bf921 | 237 | #define OPT_DNSSEC_DEBUG 47 |
00a5b5d4 | 238 | #define OPT_DNSSEC_NO_SIGN 48 |
c8a80487 SK |
239 | #define OPT_LOCAL_SERVICE 49 |
240 | #define OPT_LAST 50 | |
9e4abcb5 | 241 | |
7622fc06 SK |
242 | /* extra flags for my_syslog, we use a couple of facilities since they are known |
243 | not to occupy the same bits as priorities, no matter how syslog.h is set up. */ | |
244 | #define MS_TFTP LOG_USER | |
245 | #define MS_DHCP LOG_DAEMON | |
246 | ||
9e4abcb5 SK |
247 | struct all_addr { |
248 | union { | |
249 | struct in_addr addr4; | |
250 | #ifdef HAVE_IPV6 | |
251 | struct in6_addr addr6; | |
252 | #endif | |
51ea3ca2 | 253 | /* for log_query */ |
0fc2f313 | 254 | unsigned int keytag; |
51ea3ca2 SK |
255 | /* for cache_insert if RRSIG, DNSKEY, DS */ |
256 | struct { | |
257 | unsigned short class, type; | |
258 | } dnssec; | |
9e4abcb5 SK |
259 | } addr; |
260 | }; | |
261 | ||
262 | struct bogus_addr { | |
263 | struct in_addr addr; | |
264 | struct bogus_addr *next; | |
265 | }; | |
266 | ||
1cff166d SK |
267 | /* dns doctor param */ |
268 | struct doctor { | |
73a08a24 | 269 | struct in_addr in, end, out, mask; |
1cff166d SK |
270 | struct doctor *next; |
271 | }; | |
272 | ||
0a852541 SK |
273 | struct mx_srv_record { |
274 | char *name, *target; | |
3d8df260 SK |
275 | int issrv, srvport, priority, weight; |
276 | unsigned int offset; | |
0a852541 | 277 | struct mx_srv_record *next; |
de37951c SK |
278 | }; |
279 | ||
1a6bca81 SK |
280 | struct naptr { |
281 | char *name, *replace, *regexp, *services, *flags; | |
282 | unsigned int order, pref; | |
283 | struct naptr *next; | |
284 | }; | |
285 | ||
fec216df SK |
286 | #define TXT_STAT_CACHESIZE 1 |
287 | #define TXT_STAT_INSERTS 2 | |
288 | #define TXT_STAT_EVICTIONS 3 | |
289 | #define TXT_STAT_MISSES 4 | |
290 | #define TXT_STAT_HITS 5 | |
291 | #define TXT_STAT_AUTH 6 | |
292 | #define TXT_STAT_SERVERS 7 | |
293 | ||
0a852541 | 294 | struct txt_record { |
28866e95 SK |
295 | char *name; |
296 | unsigned char *txt; | |
0a852541 | 297 | unsigned short class, len; |
fec216df | 298 | int stat; |
0a852541 | 299 | struct txt_record *next; |
f6b7dc47 SK |
300 | }; |
301 | ||
832af0ba SK |
302 | struct ptr_record { |
303 | char *name, *ptr; | |
304 | struct ptr_record *next; | |
305 | }; | |
306 | ||
9009d746 SK |
307 | struct cname { |
308 | char *alias, *target; | |
309 | struct cname *next; | |
376d48c7 SK |
310 | }; |
311 | ||
ee415867 SK |
312 | struct ds_config { |
313 | char *name, *digest; | |
314 | int digestlen, class, algo, keytag, digest_type; | |
315 | struct ds_config *next; | |
0fc2f313 SK |
316 | }; |
317 | ||
376d48c7 SK |
318 | #define ADDRLIST_LITERAL 1 |
319 | #define ADDRLIST_IPV6 2 | |
320 | ||
321 | struct addrlist { | |
322 | struct all_addr addr; | |
323 | int flags, prefixlen; | |
324 | struct addrlist *next; | |
9009d746 SK |
325 | }; |
326 | ||
376d48c7 SK |
327 | #define AUTH6 1 |
328 | #define AUTH4 2 | |
329 | ||
4f7b304f SK |
330 | struct auth_zone { |
331 | char *domain; | |
376d48c7 SK |
332 | struct auth_name_list { |
333 | char *name; | |
334 | int flags; | |
335 | struct auth_name_list *next; | |
336 | } *interface_names; | |
337 | struct addrlist *subnet; | |
4f7b304f SK |
338 | struct auth_zone *next; |
339 | }; | |
340 | ||
341 | ||
e759d426 SK |
342 | struct host_record { |
343 | struct name_list { | |
344 | char *name; | |
345 | struct name_list *next; | |
346 | } *names; | |
347 | struct in_addr addr; | |
348 | #ifdef HAVE_IPV6 | |
349 | struct in6_addr addr6; | |
350 | #endif | |
351 | struct host_record *next; | |
352 | }; | |
353 | ||
f2621c7f SK |
354 | struct interface_name { |
355 | char *name; /* domain name */ | |
356 | char *intr; /* interface name */ | |
f7029f5c | 357 | int family; /* AF_INET, AF_INET6 or zero for both */ |
376d48c7 | 358 | struct addrlist *addr; |
f2621c7f SK |
359 | struct interface_name *next; |
360 | }; | |
361 | ||
9e4abcb5 SK |
362 | union bigname { |
363 | char name[MAXDNAME]; | |
364 | union bigname *next; /* freelist */ | |
365 | }; | |
366 | ||
c3e0b9b6 SK |
367 | struct blockdata { |
368 | struct blockdata *next; | |
7b4ad2eb SK |
369 | unsigned char key[KEYBLOCK_LEN]; |
370 | }; | |
371 | ||
9e4abcb5 SK |
372 | struct crec { |
373 | struct crec *next, *prev, *hash_next; | |
cdbee9a4 | 374 | /* union is 16 bytes when doing IPv6, 8 bytes on 32 bit machines without IPv6 */ |
fd9fa481 SK |
375 | union { |
376 | struct all_addr addr; | |
377 | struct { | |
d56a604a SK |
378 | union { |
379 | struct crec *cache; | |
380 | struct interface_name *int_name; | |
381 | } target; | |
3f7483e8 | 382 | unsigned int uid; /* 0 if union is interface-name */ |
fd9fa481 | 383 | } cname; |
7b4ad2eb | 384 | struct { |
3a237152 | 385 | struct blockdata *keydata; |
824202ef | 386 | unsigned short keylen, flags, keytag; |
51ea3ca2 SK |
387 | unsigned char algo; |
388 | } key; | |
389 | struct { | |
390 | struct blockdata *keydata; | |
824202ef | 391 | unsigned short keylen, keytag; |
7b4ad2eb | 392 | unsigned char algo; |
51ea3ca2 SK |
393 | unsigned char digest; |
394 | } ds; | |
395 | struct { | |
396 | struct blockdata *keydata; | |
824202ef | 397 | unsigned short keylen, type_covered, keytag; |
e7829aef | 398 | char algo; |
51ea3ca2 | 399 | } sig; |
fd9fa481 | 400 | } addr; |
cdbee9a4 | 401 | time_t ttd; /* time to die */ |
824202ef | 402 | /* used as class if DNSKEY/DS/RRSIG, index to source for F_HOSTS */ |
3f7483e8 | 403 | unsigned int uid; |
9e4abcb5 SK |
404 | unsigned short flags; |
405 | union { | |
406 | char sname[SMALLDNAME]; | |
407 | union bigname *bname; | |
408 | char *namep; | |
409 | } name; | |
410 | }; | |
411 | ||
28866e95 SK |
412 | #define F_IMMORTAL (1u<<0) |
413 | #define F_NAMEP (1u<<1) | |
414 | #define F_REVERSE (1u<<2) | |
415 | #define F_FORWARD (1u<<3) | |
416 | #define F_DHCP (1u<<4) | |
417 | #define F_NEG (1u<<5) | |
418 | #define F_HOSTS (1u<<6) | |
419 | #define F_IPV4 (1u<<7) | |
420 | #define F_IPV6 (1u<<8) | |
421 | #define F_BIGNAME (1u<<9) | |
422 | #define F_NXDOMAIN (1u<<10) | |
423 | #define F_CNAME (1u<<11) | |
7b4ad2eb | 424 | #define F_DNSKEY (1u<<12) |
28866e95 | 425 | #define F_CONFIG (1u<<13) |
7b4ad2eb SK |
426 | #define F_DS (1u<<14) |
427 | #define F_DNSSECOK (1u<<15) | |
428 | ||
28866e95 SK |
429 | /* below here are only valid as args to log_query: cache |
430 | entries are limited to 16 bits */ | |
431 | #define F_UPSTREAM (1u<<16) | |
432 | #define F_RRNAME (1u<<17) | |
433 | #define F_SERVER (1u<<18) | |
434 | #define F_QUERY (1u<<19) | |
7b4ad2eb | 435 | #define F_NOERR (1u<<20) |
4f7b304f | 436 | #define F_AUTH (1u<<21) |
0fc2f313 SK |
437 | #define F_DNSSEC (1u<<22) |
438 | #define F_KEYTAG (1u<<23) | |
439 | #define F_SECSTAT (1u<<24) | |
12fae49f | 440 | #define F_NO_RR (1u<<25) |
49752b90 | 441 | #define F_IPSET (1u<<26) |
4f7b304f | 442 | |
19c51cfa SK |
443 | /* Values of uid in crecs with F_CONFIG bit set. */ |
444 | #define SRC_INTERFACE 0 | |
445 | #define SRC_CONFIG 1 | |
446 | #define SRC_HOSTS 2 | |
447 | #define SRC_AH 3 | |
448 | ||
9e4abcb5 SK |
449 | |
450 | /* struct sockaddr is not large enough to hold any address, | |
cdeda28f | 451 | and specifically not big enough to hold an IPv6 address. |
9e4abcb5 SK |
452 | Blech. Roll our own. */ |
453 | union mysockaddr { | |
454 | struct sockaddr sa; | |
455 | struct sockaddr_in in; | |
7622fc06 | 456 | #if defined(HAVE_IPV6) |
9e4abcb5 SK |
457 | struct sockaddr_in6 in6; |
458 | #endif | |
459 | }; | |
460 | ||
bad7b875 SK |
461 | /* bits in flag param to IPv6 callbacks from iface_enumerate() */ |
462 | #define IFACE_TENTATIVE 1 | |
463 | #define IFACE_DEPRECATED 2 | |
4568a6f8 | 464 | #define IFACE_PERMANENT 4 |
bad7b875 SK |
465 | |
466 | ||
0a852541 SK |
467 | #define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */ |
468 | #define SERV_NO_ADDR 2 /* no server, this domain is local only */ | |
469 | #define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */ | |
5aabfc78 SK |
470 | #define SERV_HAS_DOMAIN 8 /* server for one domain only */ |
471 | #define SERV_HAS_SOURCE 16 /* source address defined */ | |
0a852541 SK |
472 | #define SERV_FOR_NODOTS 32 /* server for names with no domain part only */ |
473 | #define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */ | |
3d8df260 SK |
474 | #define SERV_FROM_DBUS 128 /* 1 if source is DBus */ |
475 | #define SERV_MARK 256 /* for mark-and-delete */ | |
9e4abcb5 | 476 | #define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS) |
824af85b | 477 | #define SERV_COUNTED 512 /* workspace for log code */ |
8ef5ada2 SK |
478 | #define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */ |
479 | #define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */ | |
7b1eae4f | 480 | #define SERV_FROM_FILE 4096 /* read from --servers-file */ |
9e4abcb5 SK |
481 | |
482 | struct serverfd { | |
483 | int fd; | |
484 | union mysockaddr source_addr; | |
824af85b | 485 | char interface[IF_NAMESIZE+1]; |
9e4abcb5 SK |
486 | struct serverfd *next; |
487 | }; | |
488 | ||
1a6bca81 SK |
489 | struct randfd { |
490 | int fd; | |
491 | unsigned short refcount, family; | |
492 | }; | |
493 | ||
9e4abcb5 SK |
494 | struct server { |
495 | union mysockaddr addr, source_addr; | |
824af85b | 496 | char interface[IF_NAMESIZE+1]; |
1697269c | 497 | struct serverfd *sfd; |
9e4abcb5 | 498 | char *domain; /* set if this server only handles a domain. */ |
feba5c1d | 499 | int flags, tcpfd; |
824af85b | 500 | unsigned int queries, failed_queries; |
9e4abcb5 SK |
501 | struct server *next; |
502 | }; | |
503 | ||
13d86c73 JD |
504 | struct ipsets { |
505 | char **sets; | |
506 | char *domain; | |
507 | struct ipsets *next; | |
508 | }; | |
509 | ||
9e4abcb5 SK |
510 | struct irec { |
511 | union mysockaddr addr; | |
f6b7dc47 | 512 | struct in_addr netmask; /* only valid for IPv4 */ |
08619211 | 513 | int tftp_ok, dhcp_ok, mtu, done, warned, dad, dns_auth, index, multicast_done, found; |
5d162f20 | 514 | char *name; |
9e4abcb5 SK |
515 | struct irec *next; |
516 | }; | |
517 | ||
44a2a316 | 518 | struct listener { |
832af0ba | 519 | int fd, tcpfd, tftpfd, family; |
52d4abf2 | 520 | struct irec *iface; /* only sometimes valid for non-wildcard */ |
44a2a316 SK |
521 | struct listener *next; |
522 | }; | |
523 | ||
9e4abcb5 SK |
524 | /* interface and address parms from command line. */ |
525 | struct iname { | |
526 | char *name; | |
527 | union mysockaddr addr; | |
4ce4f377 | 528 | int used; |
9e4abcb5 SK |
529 | struct iname *next; |
530 | }; | |
531 | ||
532 | /* resolv-file parms from command-line */ | |
533 | struct resolvc { | |
534 | struct resolvc *next; | |
3d8df260 SK |
535 | int is_default, logged; |
536 | time_t mtime; | |
9e4abcb5 SK |
537 | char *name; |
538 | }; | |
539 | ||
28866e95 | 540 | /* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */ |
7622fc06 SK |
541 | #define AH_DIR 1 |
542 | #define AH_INACTIVE 2 | |
fd9fa481 SK |
543 | struct hostsfile { |
544 | struct hostsfile *next; | |
7622fc06 | 545 | int flags; |
fd9fa481 | 546 | char *fname; |
19c51cfa | 547 | unsigned int index; /* matches to cache entries for logging */ |
fd9fa481 SK |
548 | }; |
549 | ||
3a237152 SK |
550 | |
551 | /* DNSSEC status values. */ | |
552 | #define STAT_SECURE 1 | |
553 | #define STAT_INSECURE 2 | |
554 | #define STAT_BOGUS 3 | |
555 | #define STAT_NEED_DS 4 | |
556 | #define STAT_NEED_KEY 5 | |
5d3b87a4 | 557 | #define STAT_TRUNCATED 6 |
5107ace1 | 558 | #define STAT_SECURE_WILDCARD 7 |
00a5b5d4 SK |
559 | #define STAT_NO_SIG 8 |
560 | #define STAT_NO_DS 9 | |
561 | #define STAT_NEED_DS_NEG 10 | |
562 | #define STAT_CHASE_CNAME 11 | |
3a237152 | 563 | |
28866e95 SK |
564 | #define FREC_NOREBIND 1 |
565 | #define FREC_CHECKING_DISABLED 2 | |
ed4c0767 | 566 | #define FREC_HAS_SUBNET 4 |
9d633048 SK |
567 | #define FREC_DNSKEY_QUERY 8 |
568 | #define FREC_DS_QUERY 16 | |
83349b8a | 569 | #define FREC_AD_QUESTION 32 |
613ad15d SK |
570 | #define FREC_DO_QUESTION 64 |
571 | #define FREC_ADDED_PHEADER 128 | |
00a5b5d4 | 572 | #define FREC_CHECK_NOSIGN 256 |
28866e95 | 573 | |
8a9be9e4 SK |
574 | #ifdef HAVE_DNSSEC |
575 | #define HASH_SIZE 20 /* SHA-1 digest size */ | |
576 | #else | |
577 | #define HASH_SIZE sizeof(int) | |
578 | #endif | |
579 | ||
9e4abcb5 SK |
580 | struct frec { |
581 | union mysockaddr source; | |
44a2a316 | 582 | struct all_addr dest; |
832af0ba | 583 | struct server *sentto; /* NULL means free */ |
1a6bca81 SK |
584 | struct randfd *rfd4; |
585 | #ifdef HAVE_IPV6 | |
586 | struct randfd *rfd6; | |
587 | #endif | |
dfa666f2 | 588 | unsigned int iface; |
9e4abcb5 | 589 | unsigned short orig_id, new_id; |
28866e95 | 590 | int fd, forwardall, flags; |
9e4abcb5 | 591 | time_t time; |
8a9be9e4 SK |
592 | unsigned char *hash[HASH_SIZE]; |
593 | #ifdef HAVE_DNSSEC | |
7fa836e1 | 594 | int class, work_counter; |
3a237152 SK |
595 | struct blockdata *stash; /* Saved reply, whilst we validate */ |
596 | size_t stash_len; | |
597 | struct frec *dependent; /* Query awaiting internally-generated DNSKEY or DS query */ | |
598 | struct frec *blocking_query; /* Query which is blocking us. */ | |
599 | #endif | |
9e4abcb5 SK |
600 | struct frec *next; |
601 | }; | |
602 | ||
40ef23b5 SK |
603 | /* flags in top of length field for DHCP-option tables */ |
604 | #define OT_ADDR_LIST 0x8000 | |
605 | #define OT_RFC1035_NAME 0x4000 | |
606 | #define OT_INTERNAL 0x2000 | |
607 | #define OT_NAME 0x1000 | |
608 | #define OT_CSTRING 0x0800 | |
609 | #define OT_DEC 0x0400 | |
23245c0c | 610 | #define OT_TIME 0x0200 |
40ef23b5 | 611 | |
1697269c SK |
612 | /* actions in the daemon->helper RPC */ |
613 | #define ACTION_DEL 1 | |
614 | #define ACTION_OLD_HOSTNAME 2 | |
615 | #define ACTION_OLD 3 | |
616 | #define ACTION_ADD 4 | |
a9530964 | 617 | #define ACTION_TFTP 5 |
1697269c | 618 | |
4cb1b320 SK |
619 | #define LEASE_NEW 1 /* newly created */ |
620 | #define LEASE_CHANGED 2 /* modified */ | |
621 | #define LEASE_AUX_CHANGED 4 /* CLID or expiry changed */ | |
622 | #define LEASE_AUTH_NAME 8 /* hostname came from config, not from client */ | |
623 | #define LEASE_USED 16 /* used this DHCPv6 transaction */ | |
624 | #define LEASE_NA 32 /* IPv6 no-temporary lease */ | |
625 | #define LEASE_TA 64 /* IPv6 temporary lease */ | |
353ae4d2 | 626 | #define LEASE_HAVE_HWADDR 128 /* Have set hwaddress */ |
4cb1b320 | 627 | |
9e4abcb5 SK |
628 | struct dhcp_lease { |
629 | int clid_len; /* length of client identifier */ | |
630 | unsigned char *clid; /* clientid */ | |
631 | char *hostname, *fqdn; /* name from client-hostname option or config */ | |
1697269c | 632 | char *old_hostname; /* hostname before it moved to another lease */ |
4cb1b320 | 633 | int flags; |
9e4abcb5 | 634 | time_t expires; /* lease expiry */ |
5e9e0efb SK |
635 | #ifdef HAVE_BROKEN_RTC |
636 | unsigned int length; | |
637 | #endif | |
89500e31 SK |
638 | int hwaddr_len, hwaddr_type; |
639 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
1f15b81d | 640 | struct in_addr addr, override, giaddr; |
316e2730 SK |
641 | unsigned char *extradata; |
642 | unsigned int extradata_len, extradata_size; | |
824af85b | 643 | int last_interface; |
dc8a1b1b LPC |
644 | int new_interface; /* save possible originated interface */ |
645 | int new_prefixlen; /* and its prefix length */ | |
353ae4d2 | 646 | #ifdef HAVE_DHCP6 |
89500e31 SK |
647 | struct in6_addr addr6; |
648 | int iaid; | |
353ae4d2 | 649 | struct slaac_address { |
875b8160 | 650 | struct in6_addr addr; |
353ae4d2 SK |
651 | time_t ping_time; |
652 | int backoff; /* zero -> confirmed */ | |
653 | struct slaac_address *next; | |
654 | } *slaac_address; | |
6f9aaa93 | 655 | int vendorclass_count; |
353ae4d2 | 656 | #endif |
9e4abcb5 SK |
657 | struct dhcp_lease *next; |
658 | }; | |
659 | ||
a222641c SK |
660 | struct dhcp_netid { |
661 | char *net; | |
662 | struct dhcp_netid *next; | |
663 | }; | |
664 | ||
26128d27 SK |
665 | struct dhcp_netid_list { |
666 | struct dhcp_netid *list; | |
667 | struct dhcp_netid_list *next; | |
668 | }; | |
1697269c | 669 | |
8ef5ada2 SK |
670 | struct tag_if { |
671 | struct dhcp_netid_list *set; | |
672 | struct dhcp_netid *tag; | |
673 | struct tag_if *next; | |
674 | }; | |
675 | ||
9009d746 SK |
676 | struct hwaddr_config { |
677 | int hwaddr_len, hwaddr_type; | |
678 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
679 | unsigned int wildcard_mask; | |
680 | struct hwaddr_config *next; | |
681 | }; | |
682 | ||
9e4abcb5 | 683 | struct dhcp_config { |
33820b7e | 684 | unsigned int flags; |
9e4abcb5 SK |
685 | int clid_len; /* length of client identifier */ |
686 | unsigned char *clid; /* clientid */ | |
9009d746 | 687 | char *hostname, *domain; |
8ef5ada2 | 688 | struct dhcp_netid_list *netid; |
52b92f4d SK |
689 | #ifdef HAVE_DHCP6 |
690 | struct in6_addr addr6; | |
691 | #endif | |
9e4abcb5 | 692 | struct in_addr addr; |
849a8357 | 693 | time_t decline_time; |
9009d746 SK |
694 | unsigned int lease_time; |
695 | struct hwaddr_config *hwaddr; | |
9e4abcb5 SK |
696 | struct dhcp_config *next; |
697 | }; | |
698 | ||
4cb1b320 SK |
699 | #define have_config(config, mask) ((config) && ((config)->flags & (mask))) |
700 | ||
0a852541 SK |
701 | #define CONFIG_DISABLE 1 |
702 | #define CONFIG_CLID 2 | |
0a852541 SK |
703 | #define CONFIG_TIME 8 |
704 | #define CONFIG_NAME 16 | |
705 | #define CONFIG_ADDR 32 | |
0a852541 | 706 | #define CONFIG_NOCLID 128 |
849a8357 SK |
707 | #define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */ |
708 | #define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */ | |
709 | #define CONFIG_DECLINED 1024 /* address declined by client */ | |
5aabfc78 | 710 | #define CONFIG_BANK 2048 /* from dhcp hosts file */ |
52b92f4d | 711 | #define CONFIG_ADDR6 4096 |
30393100 | 712 | #define CONFIG_WILDCARD 8192 |
33820b7e | 713 | |
9e4abcb5 | 714 | struct dhcp_opt { |
cdeda28f | 715 | int opt, len, flags; |
73a08a24 SK |
716 | union { |
717 | int encap; | |
718 | unsigned int wildcard_mask; | |
719 | unsigned char *vendor_class; | |
720 | } u; | |
721 | unsigned char *val; | |
26128d27 | 722 | struct dhcp_netid *netid; |
9e4abcb5 | 723 | struct dhcp_opt *next; |
a84fa1d0 SK |
724 | }; |
725 | ||
cdeda28f SK |
726 | #define DHOPT_ADDR 1 |
727 | #define DHOPT_STRING 2 | |
6b01084f | 728 | #define DHOPT_ENCAPSULATE 4 |
73a08a24 | 729 | #define DHOPT_ENCAP_MATCH 8 |
6b01084f | 730 | #define DHOPT_FORCE 16 |
824af85b | 731 | #define DHOPT_BANK 32 |
73a08a24 SK |
732 | #define DHOPT_ENCAP_DONE 64 |
733 | #define DHOPT_MATCH 128 | |
734 | #define DHOPT_VENDOR 256 | |
735 | #define DHOPT_HEX 512 | |
7622fc06 | 736 | #define DHOPT_VENDOR_MATCH 1024 |
316e2730 | 737 | #define DHOPT_RFC3925 2048 |
7de060b0 | 738 | #define DHOPT_TAGOK 4096 |
4cb1b320 | 739 | #define DHOPT_ADDR6 8192 |
cdeda28f | 740 | |
26128d27 | 741 | struct dhcp_boot { |
7de060b0 | 742 | char *file, *sname, *tftp_sname; |
26128d27 SK |
743 | struct in_addr next_server; |
744 | struct dhcp_netid *netid; | |
745 | struct dhcp_boot *next; | |
746 | }; | |
747 | ||
7622fc06 SK |
748 | struct pxe_service { |
749 | unsigned short CSA, type; | |
751d6f4a | 750 | char *menu, *basename, *sname; |
7622fc06 SK |
751 | struct in_addr server; |
752 | struct dhcp_netid *netid; | |
753 | struct pxe_service *next; | |
754 | }; | |
755 | ||
f2621c7f SK |
756 | #define MATCH_VENDOR 1 |
757 | #define MATCH_USER 2 | |
758 | #define MATCH_CIRCUIT 3 | |
759 | #define MATCH_REMOTE 4 | |
760 | #define MATCH_SUBSCRIBER 5 | |
761 | ||
762 | /* vendorclass, userclass, remote-id or cicuit-id */ | |
a84fa1d0 | 763 | struct dhcp_vendor { |
a5c72ab5 SK |
764 | int len, match_type; |
765 | unsigned int enterprise; | |
a222641c SK |
766 | char *data; |
767 | struct dhcp_netid netid; | |
a84fa1d0 SK |
768 | struct dhcp_vendor *next; |
769 | }; | |
9e4abcb5 | 770 | |
cdeda28f SK |
771 | struct dhcp_mac { |
772 | unsigned int mask; | |
773 | int hwaddr_len, hwaddr_type; | |
774 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
775 | struct dhcp_netid netid; | |
776 | struct dhcp_mac *next; | |
777 | }; | |
778 | ||
832af0ba SK |
779 | struct dhcp_bridge { |
780 | char iface[IF_NAMESIZE]; | |
781 | struct dhcp_bridge *alias, *next; | |
782 | }; | |
832af0ba | 783 | |
9009d746 | 784 | struct cond_domain { |
48fd1c4d | 785 | char *domain, *prefix; |
9009d746 | 786 | struct in_addr start, end; |
d74942a0 SK |
787 | #ifdef HAVE_IPV6 |
788 | struct in6_addr start6, end6; | |
789 | #endif | |
790 | int is6; | |
9009d746 | 791 | struct cond_domain *next; |
1f776932 | 792 | }; |
9009d746 | 793 | |
a6ebfacf SK |
794 | #ifdef OPTION6_PREFIX_CLASS |
795 | struct prefix_class { | |
796 | int class; | |
c630924d | 797 | struct dhcp_netid tag; |
a6ebfacf SK |
798 | struct prefix_class *next; |
799 | }; | |
800 | #endif | |
801 | ||
c4cd95df SK |
802 | struct ra_interface { |
803 | char *name; | |
804 | int interval, lifetime, prio; | |
805 | struct ra_interface *next; | |
806 | }; | |
807 | ||
9e4abcb5 | 808 | struct dhcp_context { |
feba5c1d | 809 | unsigned int lease_time, addr_epoch; |
0a852541 SK |
810 | struct in_addr netmask, broadcast; |
811 | struct in_addr local, router; | |
a84fa1d0 | 812 | struct in_addr start, end; /* range of available addresses */ |
c72daea8 SK |
813 | #ifdef HAVE_DHCP6 |
814 | struct in6_addr start6, end6; /* range of available addresses */ | |
e44ddcac | 815 | struct in6_addr local6; |
353ae4d2 | 816 | int prefix, if_index; |
ef1a94ab SK |
817 | unsigned int valid, preferred, saved_valid; |
818 | time_t ra_time, ra_short_period_start, address_lost_time; | |
1f776932 | 819 | char *template_interface; |
c72daea8 | 820 | #endif |
0a852541 | 821 | int flags; |
cdeda28f | 822 | struct dhcp_netid netid, *filter; |
36717eee | 823 | struct dhcp_context *next, *current; |
9e4abcb5 SK |
824 | }; |
825 | ||
89500e31 SK |
826 | #define CONTEXT_STATIC (1u<<0) |
827 | #define CONTEXT_NETMASK (1u<<1) | |
828 | #define CONTEXT_BRDCAST (1u<<2) | |
829 | #define CONTEXT_PROXY (1u<<3) | |
7ea3d3fd | 830 | #define CONTEXT_RA_ROUTER (1u<<4) |
89500e31 SK |
831 | #define CONTEXT_RA_DONE (1u<<5) |
832 | #define CONTEXT_RA_NAME (1u<<6) | |
833 | #define CONTEXT_RA_STATELESS (1u<<7) | |
834 | #define CONTEXT_DHCP (1u<<8) | |
835 | #define CONTEXT_DEPRECATE (1u<<9) | |
836 | #define CONTEXT_TEMPLATE (1u<<10) /* create contexts using addresses */ | |
837 | #define CONTEXT_CONSTRUCTED (1u<<11) | |
838 | #define CONTEXT_GC (1u<<12) | |
839 | #define CONTEXT_RA (1u<<13) | |
840 | #define CONTEXT_CONF_USED (1u<<14) | |
841 | #define CONTEXT_USED (1u<<15) | |
376d48c7 SK |
842 | #define CONTEXT_OLD (1u<<16) |
843 | #define CONTEXT_V6 (1u<<17) | |
ef1a94ab | 844 | |
3d8df260 SK |
845 | struct ping_result { |
846 | struct in_addr addr; | |
847 | time_t time; | |
7de060b0 | 848 | unsigned int hash; |
3d8df260 SK |
849 | struct ping_result *next; |
850 | }; | |
9e4abcb5 | 851 | |
832af0ba SK |
852 | struct tftp_file { |
853 | int refcount, fd; | |
854 | off_t size; | |
5aabfc78 SK |
855 | dev_t dev; |
856 | ino_t inode; | |
832af0ba SK |
857 | char filename[]; |
858 | }; | |
859 | ||
860 | struct tftp_transfer { | |
861 | int sockfd; | |
862 | time_t timeout; | |
863 | int backoff; | |
9e038946 SK |
864 | unsigned int block, blocksize, expansion; |
865 | off_t offset; | |
28866e95 | 866 | union mysockaddr peer; |
9e038946 | 867 | char opt_blocksize, opt_transize, netascii, carrylf; |
832af0ba SK |
868 | struct tftp_file *file; |
869 | struct tftp_transfer *next; | |
870 | }; | |
871 | ||
8ef5ada2 SK |
872 | struct addr_list { |
873 | struct in_addr addr; | |
874 | struct addr_list *next; | |
875 | }; | |
876 | ||
8ef5ada2 SK |
877 | struct tftp_prefix { |
878 | char *interface; | |
879 | char *prefix; | |
880 | struct tftp_prefix *next; | |
881 | }; | |
882 | ||
ff7eea27 SK |
883 | struct dhcp_relay { |
884 | struct all_addr local, server; | |
885 | char *interface; /* Allowable interface for replies from server, and dest for IPv6 multicast */ | |
886 | int iface_index; /* working - interface in which requests arrived, for return */ | |
887 | struct dhcp_relay *current, *next; | |
888 | }; | |
8ef5ada2 | 889 | |
5aabfc78 | 890 | extern struct daemon { |
3be34541 SK |
891 | /* datastuctures representing the command-line and |
892 | config file arguments. All set (including defaults) | |
893 | in option.c */ | |
894 | ||
28866e95 | 895 | unsigned int options, options2; |
3be34541 | 896 | struct resolvc default_resolv, *resolv_files; |
9009d746 | 897 | time_t last_resolv; |
7b1eae4f | 898 | char *servers_file; |
0a852541 | 899 | struct mx_srv_record *mxnames; |
1a6bca81 | 900 | struct naptr *naptr; |
9f7f3b12 | 901 | struct txt_record *txt, *rr; |
832af0ba | 902 | struct ptr_record *ptr; |
e759d426 | 903 | struct host_record *host_records, *host_records_tail; |
9009d746 | 904 | struct cname *cnames; |
4f7b304f | 905 | struct auth_zone *auth_zones; |
f2621c7f | 906 | struct interface_name *int_names; |
3be34541 | 907 | char *mxtarget; |
ed4c0767 SK |
908 | int addr4_netmask; |
909 | int addr6_netmask; | |
3be34541 | 910 | char *lease_file; |
9e038946 | 911 | char *username, *groupname, *scriptuser; |
c72daea8 | 912 | char *luascript; |
429798fd SK |
913 | char *authserver, *hostmaster; |
914 | struct iname *authinterface; | |
e1ff419c | 915 | struct name_list *secondary_forward_server; |
1a6bca81 | 916 | int group_set, osport; |
3be34541 | 917 | char *domain_suffix; |
2bb73af7 | 918 | struct cond_domain *cond_domain, *synth_domains; |
3be34541 | 919 | char *runfile; |
7cebd20f | 920 | char *lease_change_command; |
2937f8a0 | 921 | struct iname *if_names, *if_addrs, *if_except, *dhcp_except, *auth_peers, *tftp_interfaces; |
3be34541 SK |
922 | struct bogus_addr *bogus_addr; |
923 | struct server *servers; | |
13d86c73 | 924 | struct ipsets *ipsets; |
849a8357 | 925 | int log_fac; /* log facility */ |
f2621c7f SK |
926 | char *log_file; /* optional log file */ |
927 | int max_logs; /* queue limit */ | |
208b65c5 | 928 | int cachesize, ftabsize; |
1a6bca81 | 929 | int port, query_port, min_port; |
4f7b304f | 930 | unsigned long local_ttl, neg_ttl, max_ttl, max_cache_ttl, auth_ttl; |
fd9fa481 | 931 | struct hostsfile *addn_hosts; |
1f776932 | 932 | struct dhcp_context *dhcp, *dhcp6; |
c4cd95df | 933 | struct ra_interface *ra_interfaces; |
3be34541 | 934 | struct dhcp_config *dhcp_conf; |
3634c54e | 935 | struct dhcp_opt *dhcp_opts, *dhcp_match, *dhcp_opts6, *dhcp_match6; |
3be34541 | 936 | struct dhcp_vendor *dhcp_vendors; |
cdeda28f | 937 | struct dhcp_mac *dhcp_macs; |
26128d27 | 938 | struct dhcp_boot *boot_config; |
7622fc06 | 939 | struct pxe_service *pxe_services; |
8ef5ada2 SK |
940 | struct tag_if *tag_if; |
941 | struct addr_list *override_relays; | |
ff7eea27 | 942 | struct dhcp_relay *relay4, *relay6; |
8ef5ada2 | 943 | int override; |
1f15b81d | 944 | int enable_pxe; |
1f776932 | 945 | int doing_ra, doing_dhcp6; |
8ef5ada2 SK |
946 | struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names; |
947 | struct dhcp_netid_list *force_broadcast, *bootp_dynamic; | |
28866e95 | 948 | struct hostsfile *dhcp_hosts_file, *dhcp_opts_file; |
824af85b | 949 | int dhcp_max, tftp_max; |
9e038946 | 950 | int dhcp_server_port, dhcp_client_port; |
824af85b | 951 | int start_tftp_port, end_tftp_port; |
3be34541 SK |
952 | unsigned int min_leasetime; |
953 | struct doctor *doctors; | |
954 | unsigned short edns_pktsz; | |
824af85b | 955 | char *tftp_prefix; |
8ef5ada2 | 956 | struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */ |
8b372704 SK |
957 | unsigned int duid_enterprise, duid_config_len; |
958 | unsigned char *duid_config; | |
ad094275 | 959 | char *dbus_name; |
4f7b304f | 960 | unsigned long soa_sn, soa_refresh, soa_retry, soa_expiry; |
c630924d SK |
961 | #ifdef OPTION6_PREFIX_CLASS |
962 | struct prefix_class *prefix_classes; | |
963 | #endif | |
0fc2f313 | 964 | #ifdef HAVE_DNSSEC |
ee415867 | 965 | struct ds_config *ds; |
0fc2f313 | 966 | #endif |
3be34541 SK |
967 | |
968 | /* globally used stuff for DNS */ | |
969 | char *packet; /* packet buffer */ | |
0a852541 | 970 | int packet_buff_sz; /* size of above */ |
3be34541 | 971 | char *namebuff; /* MAXDNAME size buffer */ |
c3e0b9b6 SK |
972 | #ifdef HAVE_DNSSEC |
973 | char *keyname; /* MAXDNAME size buffer */ | |
5107ace1 | 974 | char *workspacename; /* ditto */ |
c3e0b9b6 | 975 | #endif |
b485ed97 | 976 | unsigned int local_answer, queries_forwarded, auth_answer; |
1a6bca81 | 977 | struct frec *frec_list; |
3be34541 | 978 | struct serverfd *sfds; |
3d8df260 | 979 | struct irec *interfaces; |
3be34541 SK |
980 | struct listener *listeners; |
981 | struct server *last_server; | |
1f15b81d SK |
982 | time_t forwardtime; |
983 | int forwardcount; | |
cdeda28f SK |
984 | struct server *srv_save; /* Used for resend on DoD */ |
985 | size_t packet_len; /* " " */ | |
3927da46 | 986 | struct randfd *rfd_save; /* " " */ |
7622fc06 | 987 | pid_t tcp_pids[MAX_PROCS]; |
1a6bca81 | 988 | struct randfd randomsocks[RANDOM_SOCKS]; |
316e2730 | 989 | int v6pktinfo; |
c8a80487 | 990 | struct addrlist *interface_addrs; /* list of all addresses/prefix lengths associated with all local interfaces */ |
1a6bca81 | 991 | |
3be34541 | 992 | /* DHCP state */ |
316e2730 | 993 | int dhcpfd, helperfd, pxefd; |
7622fc06 | 994 | #if defined(HAVE_LINUX_NETWORK) |
0a852541 | 995 | int netlinkfd; |
7622fc06 | 996 | #elif defined(HAVE_BSD_NETWORK) |
1ee9be4c | 997 | int dhcp_raw_fd, dhcp_icmp_fd, routefd; |
0a852541 | 998 | #endif |
5e9e0efb | 999 | struct iovec dhcp_packet; |
8ef5ada2 | 1000 | char *dhcp_buff, *dhcp_buff2, *dhcp_buff3; |
3d8df260 | 1001 | struct ping_result *ping_results; |
cdeda28f | 1002 | FILE *lease_stream; |
832af0ba | 1003 | struct dhcp_bridge *bridges; |
c72daea8 SK |
1004 | #ifdef HAVE_DHCP6 |
1005 | int duid_len; | |
1006 | unsigned char *duid; | |
1007 | struct iovec outpacket; | |
c5ad4e79 | 1008 | int dhcp6fd, icmp6fd; |
c72daea8 | 1009 | #endif |
3d8df260 | 1010 | /* DBus stuff */ |
3d8df260 SK |
1011 | /* void * here to avoid depending on dbus headers outside dbus.c */ |
1012 | void *dbus; | |
832af0ba | 1013 | #ifdef HAVE_DBUS |
3d8df260 SK |
1014 | struct watch *watches; |
1015 | #endif | |
1016 | ||
832af0ba | 1017 | /* TFTP stuff */ |
a9530964 | 1018 | struct tftp_transfer *tftp_trans, *tftp_done_trans; |
824af85b | 1019 | |
c72daea8 SK |
1020 | /* utility string buffer, hold max sized IP address as string */ |
1021 | char *addrbuff; | |
1022 | ||
5aabfc78 | 1023 | } *daemon; |
3be34541 | 1024 | |
9e4abcb5 | 1025 | /* cache.c */ |
5aabfc78 | 1026 | void cache_init(void); |
28866e95 | 1027 | void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg); |
19c51cfa | 1028 | char *record_source(unsigned int index); |
610e782a | 1029 | char *querystr(char *desc, unsigned short type); |
9e4abcb5 SK |
1030 | struct crec *cache_find_by_addr(struct crec *crecp, |
1031 | struct all_addr *addr, time_t now, | |
12fae49f | 1032 | unsigned int prot); |
9e4abcb5 | 1033 | struct crec *cache_find_by_name(struct crec *crecp, |
12fae49f | 1034 | char *name, time_t now, unsigned int prot); |
9e4abcb5 SK |
1035 | void cache_end_insert(void); |
1036 | void cache_start_insert(void); | |
fd9fa481 SK |
1037 | struct crec *cache_insert(char *name, struct all_addr *addr, |
1038 | time_t now, unsigned long ttl, unsigned short flags); | |
7622fc06 | 1039 | void cache_reload(void); |
4cb1b320 | 1040 | void cache_add_dhcp_entry(char *host_name, int prot, struct all_addr *host_address, time_t ttd); |
7de060b0 | 1041 | struct in_addr a_record_from_hosts(char *name, time_t now); |
9e4abcb5 | 1042 | void cache_unhash_dhcp(void); |
5aabfc78 | 1043 | void dump_cache(time_t now); |
fec216df | 1044 | int cache_make_stat(struct txt_record *t); |
9e4abcb5 | 1045 | char *cache_get_name(struct crec *crecp); |
d56a604a | 1046 | char *cache_get_cname_target(struct crec *crecp); |
b75e9363 | 1047 | struct crec *cache_enumerate(int init); |
98c098bf SK |
1048 | |
1049 | /* blockdata.c */ | |
7b4ad2eb | 1050 | #ifdef HAVE_DNSSEC |
82e3f45a | 1051 | void blockdata_init(void); |
c2207688 | 1052 | void blockdata_report(void); |
3a237152 | 1053 | struct blockdata *blockdata_alloc(char *data, size_t len); |
86bec2d3 | 1054 | void *blockdata_retrieve(struct blockdata *block, size_t len, void *data); |
3a237152 | 1055 | void blockdata_free(struct blockdata *blocks); |
7b4ad2eb | 1056 | #endif |
9e4abcb5 | 1057 | |
2bb73af7 SK |
1058 | /* domain.c */ |
1059 | char *get_domain(struct in_addr addr); | |
1060 | #ifdef HAVE_IPV6 | |
1061 | char *get_domain6(struct in6_addr *addr); | |
1062 | #endif | |
1063 | int is_name_synthetic(int flags, char *name, struct all_addr *addr); | |
1064 | int is_rev_synth(int flag, struct all_addr *addr, char *name); | |
1065 | ||
9e4abcb5 | 1066 | /* rfc1035.c */ |
f53c79c0 GB |
1067 | int extract_name(struct dns_header *header, size_t plen, unsigned char **pp, |
1068 | char *name, int isExtract, int extrabytes); | |
32f82c62 | 1069 | unsigned char *skip_name(unsigned char *ansp, struct dns_header *header, size_t plen, int extrabytes); |
f53c79c0 | 1070 | unsigned char *skip_questions(struct dns_header *header, size_t plen); |
5107ace1 | 1071 | unsigned char *skip_section(unsigned char *ansp, int count, struct dns_header *header, size_t plen); |
572b41eb | 1072 | unsigned int extract_request(struct dns_header *header, size_t qlen, |
c1bb8504 | 1073 | char *name, unsigned short *typep); |
572b41eb | 1074 | size_t setup_reply(struct dns_header *header, size_t qlen, |
28866e95 | 1075 | struct all_addr *addrp, unsigned int flags, |
cdeda28f | 1076 | unsigned long local_ttl); |
572b41eb | 1077 | int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff, |
13d86c73 | 1078 | time_t now, char **ipsets, int is_sign, int checkrebind, |
6938f347 | 1079 | int no_cache, int secure, int *doctored); |
572b41eb | 1080 | size_t answer_request(struct dns_header *header, char *limit, size_t qlen, |
83349b8a | 1081 | struct in_addr local_addr, struct in_addr local_netmask, |
613ad15d | 1082 | time_t now, int *ad_reqd, int *do_bit); |
572b41eb | 1083 | int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name, |
9e4abcb5 | 1084 | struct bogus_addr *addr, time_t now); |
572b41eb | 1085 | unsigned char *find_pseudoheader(struct dns_header *header, size_t plen, |
832af0ba | 1086 | size_t *len, unsigned char **p, int *is_sign); |
5aabfc78 | 1087 | int check_for_local_domain(char *name, time_t now); |
572b41eb SK |
1088 | unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff); |
1089 | size_t resize_packet(struct dns_header *header, size_t plen, | |
cdeda28f | 1090 | unsigned char *pheader, size_t hlen); |
572b41eb | 1091 | size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3); |
ed4c0767 | 1092 | size_t add_source_addr(struct dns_header *header, size_t plen, char *limit, union mysockaddr *source); |
3a237152 SK |
1093 | #ifdef HAVE_DNSSEC |
1094 | size_t add_do_bit(struct dns_header *header, size_t plen, char *limit); | |
1095 | #endif | |
ed4c0767 | 1096 | int check_source(struct dns_header *header, size_t plen, unsigned char *pseudoheader, union mysockaddr *peer); |
4f7b304f | 1097 | int add_resource_record(struct dns_header *header, char *limit, int *truncp, |
b75e9363 | 1098 | int nameoffset, unsigned char **pp, unsigned long ttl, |
e1ff419c | 1099 | int *offset, unsigned short type, unsigned short class, char *format, ...); |
4f7b304f SK |
1100 | unsigned char *skip_questions(struct dns_header *header, size_t plen); |
1101 | int extract_name(struct dns_header *header, size_t plen, unsigned char **pp, | |
1102 | char *name, int isExtract, int extrabytes); | |
1103 | int in_arpa_name_2_addr(char *namein, struct all_addr *addrp); | |
dc27e148 | 1104 | int private_net(struct in_addr addr, int ban_localhost); |
4f7b304f SK |
1105 | |
1106 | /* auth.c */ | |
4820dce9 | 1107 | #ifdef HAVE_AUTH |
19b16891 SK |
1108 | size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, |
1109 | time_t now, union mysockaddr *peer_addr, int local_query); | |
b485ed97 | 1110 | int in_zone(struct auth_zone *zone, char *name, char **cut); |
4820dce9 | 1111 | #endif |
9e4abcb5 | 1112 | |
f53c79c0 | 1113 | /* dnssec.c */ |
60b68069 | 1114 | size_t dnssec_generate_query(struct dns_header *header, char *end, char *name, int class, int type, union mysockaddr *addr); |
c3e0b9b6 SK |
1115 | int dnssec_validate_by_ds(time_t now, struct dns_header *header, size_t n, char *name, char *keyname, int class); |
1116 | int dnssec_validate_ds(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int class); | |
00a5b5d4 SK |
1117 | int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int *class, int *neganswer); |
1118 | int dnssec_chase_cname(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname); | |
0fc2f313 | 1119 | int dnskey_keytag(int alg, int flags, unsigned char *rdata, int rdlen); |
613ad15d | 1120 | size_t filter_rrsigs(struct dns_header *header, size_t plen); |
8a9be9e4 | 1121 | unsigned char* hash_questions(struct dns_header *header, size_t plen, char *name); |
f53c79c0 | 1122 | |
9e4abcb5 | 1123 | /* util.c */ |
1a6bca81 | 1124 | void rand_init(void); |
9e4abcb5 | 1125 | unsigned short rand16(void); |
6586e835 | 1126 | u64 rand64(void); |
1f15b81d SK |
1127 | int legal_hostname(char *c); |
1128 | char *canonicalise(char *s, int *nomem); | |
3d8df260 | 1129 | unsigned char *do_rfc1035_name(unsigned char *p, char *sval); |
0a852541 | 1130 | void *safe_malloc(size_t size); |
1a6bca81 | 1131 | void safe_pipe(int *fd, int read_noblock); |
5aabfc78 | 1132 | void *whine_malloc(size_t size); |
9e4abcb5 SK |
1133 | int sa_len(union mysockaddr *addr); |
1134 | int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2); | |
c99df938 | 1135 | int hostname_isequal(const char *a, const char *b); |
5e9e0efb | 1136 | time_t dnsmasq_time(void); |
dc8a1b1b | 1137 | int netmask_length(struct in_addr mask); |
a84fa1d0 | 1138 | int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask); |
c72daea8 SK |
1139 | #ifdef HAVE_IPV6 |
1140 | int is_same_net6(struct in6_addr *a, struct in6_addr *b, int prefixlen); | |
52b92f4d SK |
1141 | u64 addr6part(struct in6_addr *addr); |
1142 | void setaddr6part(struct in6_addr *addr, u64 host); | |
c72daea8 | 1143 | #endif |
fd9fa481 | 1144 | int retry_send(void); |
0a852541 | 1145 | void prettyprint_time(char *buf, unsigned int t); |
3d8df260 | 1146 | int prettyprint_addr(union mysockaddr *addr, char *buf); |
0a852541 | 1147 | int parse_hex(char *in, unsigned char *out, int maxlen, |
cdeda28f | 1148 | unsigned int *wildcard_mask, int *mac_type); |
5e9e0efb SK |
1149 | int memcmp_masked(unsigned char *a, unsigned char *b, int len, |
1150 | unsigned int mask); | |
1151 | int expand_buf(struct iovec *iov, size_t size); | |
5aabfc78 | 1152 | char *print_mac(char *buff, unsigned char *mac, int len); |
1697269c | 1153 | void bump_maxfd(int fd, int *max); |
1697269c | 1154 | int read_write(int fd, unsigned char *packet, int size, int rw); |
7cebd20f | 1155 | |
49333cbd | 1156 | int wildcard_match(const char* wildcard, const char* match); |
70772c90 | 1157 | int wildcard_matchn(const char* wildcard, const char* match, int num); |
49333cbd | 1158 | |
f2621c7f | 1159 | /* log.c */ |
5aabfc78 | 1160 | void die(char *message, char *arg1, int exit_code); |
1a6bca81 | 1161 | int log_start(struct passwd *ent_pw, int errfd); |
5aabfc78 | 1162 | int log_reopen(char *log_file); |
f2621c7f SK |
1163 | void my_syslog(int priority, const char *format, ...); |
1164 | void set_log_writer(fd_set *set, int *maxfdp); | |
1165 | void check_log_writer(fd_set *set); | |
5aabfc78 | 1166 | void flush_log(void); |
f2621c7f | 1167 | |
9e4abcb5 | 1168 | /* option.c */ |
5aabfc78 | 1169 | void read_opts (int argc, char **argv, char *compile_opts); |
4cb1b320 SK |
1170 | char *option_string(int prot, unsigned int opt, unsigned char *val, |
1171 | int opt_len, char *buf, int buf_len); | |
824af85b | 1172 | void reread_dhcp(void); |
7b1eae4f | 1173 | void read_servers_file(void); |
28866e95 | 1174 | void set_option_bool(unsigned int opt); |
2b5bae9a | 1175 | void reset_option_bool(unsigned int opt); |
28866e95 | 1176 | struct hostsfile *expand_filelist(struct hostsfile *list); |
faafb3f7 SK |
1177 | char *parse_server(char *arg, union mysockaddr *addr, |
1178 | union mysockaddr *source_addr, char *interface, int *flags); | |
9e4abcb5 SK |
1179 | |
1180 | /* forward.c */ | |
1a6bca81 | 1181 | void reply_query(int fd, int family, time_t now); |
5aabfc78 SK |
1182 | void receive_query(struct listener *listen, time_t now); |
1183 | unsigned char *tcp_request(int confd, time_t now, | |
4f7b304f | 1184 | union mysockaddr *local_addr, struct in_addr netmask, int auth_dns); |
5aabfc78 | 1185 | void server_gone(struct server *server); |
3a237152 | 1186 | struct frec *get_new_frec(time_t now, int *wait, int force); |
29689cfa | 1187 | int send_from(int fd, int nowild, char *packet, size_t len, |
c72daea8 | 1188 | union mysockaddr *to, struct all_addr *source, |
50303b19 | 1189 | unsigned int iface); |
47a95169 | 1190 | void resend_query(); |
3be34541 | 1191 | |
9e4abcb5 | 1192 | /* network.c */ |
7622fc06 | 1193 | int indextoname(int fd, int index, char *name); |
824af85b | 1194 | int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp); |
1a6bca81 | 1195 | int random_sock(int family); |
824af85b | 1196 | void pre_allocate_sfds(void); |
5aabfc78 | 1197 | int reload_servers(char *fname); |
d68c2ca2 SK |
1198 | void mark_servers(int flag); |
1199 | void cleanup_servers(void); | |
1200 | void add_update_server(int flags, | |
1201 | union mysockaddr *addr, | |
1202 | union mysockaddr *source_addr, | |
1203 | const char *interface, | |
1204 | const char *domain); | |
5aabfc78 | 1205 | void check_servers(void); |
115ac3e4 | 1206 | int enumerate_interfaces(int reset); |
74c95c25 SK |
1207 | void create_wildcard_listeners(void); |
1208 | void create_bound_listeners(int die); | |
dc27e148 | 1209 | void warn_bound_listeners(void); |
f7029f5c | 1210 | void warn_int_names(void); |
74c95c25 | 1211 | int is_dad_listeners(void); |
4f7b304f | 1212 | int iface_check(int family, struct all_addr *addr, char *name, int *auth_dns); |
e25db1f2 | 1213 | int loopback_exception(int fd, int family, struct all_addr *addr, char *name); |
3f2873d4 | 1214 | int label_exception(int index, int family, struct all_addr *addr); |
7cebd20f | 1215 | int fix_fd(int fd); |
22ce550e | 1216 | int tcp_interface(int fd, int af); |
c72daea8 SK |
1217 | #ifdef HAVE_IPV6 |
1218 | int set_ipv6pktinfo(int fd); | |
1219 | #endif | |
5d162f20 SK |
1220 | #ifdef HAVE_DHCP6 |
1221 | void join_multicast(int dienow); | |
1222 | #endif | |
1ee9be4c SK |
1223 | #if defined(HAVE_LINUX_NETWORK) || defined(HAVE_BSD_NETWORK) |
1224 | void newaddress(time_t now); | |
1225 | #endif | |
1226 | ||
3be34541 | 1227 | |
9e4abcb5 | 1228 | /* dhcp.c */ |
7622fc06 | 1229 | #ifdef HAVE_DHCP |
5aabfc78 | 1230 | void dhcp_init(void); |
316e2730 | 1231 | void dhcp_packet(time_t now, int pxe_fd); |
824af85b SK |
1232 | struct dhcp_context *address_available(struct dhcp_context *context, |
1233 | struct in_addr addr, | |
1234 | struct dhcp_netid *netids); | |
1235 | struct dhcp_context *narrow_context(struct dhcp_context *context, | |
1236 | struct in_addr taddr, | |
1237 | struct dhcp_netid *netids); | |
8ef5ada2 | 1238 | int address_allocate(struct dhcp_context *context, |
cdeda28f | 1239 | struct in_addr *addrp, unsigned char *hwaddr, int hw_len, |
3d8df260 | 1240 | struct dhcp_netid *netids, time_t now); |
5aabfc78 | 1241 | void dhcp_read_ethers(void); |
dfa666f2 | 1242 | struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr); |
5aabfc78 | 1243 | char *host_from_dns(struct in_addr addr); |
7622fc06 | 1244 | #endif |
3be34541 | 1245 | |
9e4abcb5 | 1246 | /* lease.c */ |
7622fc06 | 1247 | #ifdef HAVE_DHCP |
5aabfc78 | 1248 | void lease_update_file(time_t now); |
353ae4d2 | 1249 | void lease_update_dns(int force); |
5aabfc78 | 1250 | void lease_init(time_t now); |
52b92f4d | 1251 | struct dhcp_lease *lease4_allocate(struct in_addr addr); |
c72daea8 | 1252 | #ifdef HAVE_DHCP6 |
4cb1b320 SK |
1253 | struct dhcp_lease *lease6_allocate(struct in6_addr *addrp, int lease_type); |
1254 | struct dhcp_lease *lease6_find(unsigned char *clid, int clid_len, | |
1255 | int lease_type, int iaid, struct in6_addr *addr); | |
a6ebfacf SK |
1256 | void lease6_reset(void); |
1257 | struct dhcp_lease *lease6_find_by_client(struct dhcp_lease *first, int lease_type, unsigned char *clid, int clid_len, int iaid); | |
52b92f4d | 1258 | struct dhcp_lease *lease6_find_by_addr(struct in6_addr *net, int prefix, u64 addr); |
0793380b | 1259 | u64 lease_find_max_addr6(struct dhcp_context *context); |
353ae4d2 | 1260 | void lease_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface); |
0c050242 | 1261 | void lease_update_slaac(time_t now); |
89500e31 | 1262 | void lease_set_iaid(struct dhcp_lease *lease, int iaid); |
3511a928 | 1263 | void lease_make_duid(time_t now); |
c72daea8 | 1264 | #endif |
7cebd20f | 1265 | void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr, |
a9ab732e | 1266 | unsigned char *clid, int hw_len, int hw_type, int clid_len, time_t now, int force); |
70c5e3e0 | 1267 | void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth, char *domain, char *config_domain); |
5e9e0efb | 1268 | void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now); |
353ae4d2 | 1269 | void lease_set_interface(struct dhcp_lease *lease, int interface, time_t now); |
cdeda28f | 1270 | struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type, |
0a852541 | 1271 | unsigned char *clid, int clid_len); |
9e4abcb5 | 1272 | struct dhcp_lease *lease_find_by_addr(struct in_addr addr); |
7de060b0 | 1273 | struct in_addr lease_find_max_addr(struct dhcp_context *context); |
9e4abcb5 | 1274 | void lease_prune(struct dhcp_lease *target, time_t now); |
5aabfc78 SK |
1275 | void lease_update_from_configs(void); |
1276 | int do_script_run(time_t now); | |
1277 | void rerun_scripts(void); | |
8b372704 | 1278 | void lease_find_interfaces(time_t now); |
ceae00dd SK |
1279 | #ifdef HAVE_SCRIPT |
1280 | void lease_add_extradata(struct dhcp_lease *lease, unsigned char *data, | |
1281 | unsigned int len, int delim); | |
1282 | #endif | |
7622fc06 | 1283 | #endif |
a84fa1d0 | 1284 | |
9e4abcb5 | 1285 | /* rfc2131.c */ |
7622fc06 | 1286 | #ifdef HAVE_DHCP |
824af85b | 1287 | size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index, |
7de060b0 | 1288 | size_t sz, time_t now, int unicast_dest, int *is_inform, int pxe_fd, struct in_addr fallback); |
9009d746 SK |
1289 | unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr, |
1290 | int clid_len, unsigned char *clid, int *len_out); | |
7622fc06 | 1291 | #endif |
3be34541 SK |
1292 | |
1293 | /* dnsmasq.c */ | |
7622fc06 | 1294 | #ifdef HAVE_DHCP |
5e9e0efb | 1295 | int make_icmp_sock(void); |
5aabfc78 | 1296 | int icmp_ping(struct in_addr addr); |
7622fc06 | 1297 | #endif |
47a95169 | 1298 | void queue_event(int event); |
353ae4d2 | 1299 | void send_alarm(time_t event, time_t now); |
c72daea8 | 1300 | void send_event(int fd, int event, int data, char *msg); |
5aabfc78 | 1301 | void clear_cache_and_reload(time_t now); |
44a2a316 | 1302 | |
0a852541 | 1303 | /* netlink.c */ |
5e9e0efb | 1304 | #ifdef HAVE_LINUX_NETWORK |
5aabfc78 | 1305 | void netlink_init(void); |
a0358e5d | 1306 | void netlink_multicast(void); |
5e9e0efb SK |
1307 | #endif |
1308 | ||
1309 | /* bpf.c */ | |
824af85b | 1310 | #ifdef HAVE_BSD_NETWORK |
5aabfc78 SK |
1311 | void init_bpf(void); |
1312 | void send_via_bpf(struct dhcp_packet *mess, size_t len, | |
5e9e0efb | 1313 | struct in_addr iface_addr, struct ifreq *ifr); |
1ee9be4c | 1314 | void route_init(void); |
a0358e5d | 1315 | void route_sock(void); |
0a852541 | 1316 | #endif |
3d8df260 | 1317 | |
824af85b | 1318 | /* bpf.c or netlink.c */ |
28866e95 | 1319 | int iface_enumerate(int family, void *parm, int (callback)()); |
824af85b | 1320 | |
3d8df260 SK |
1321 | /* dbus.c */ |
1322 | #ifdef HAVE_DBUS | |
5aabfc78 SK |
1323 | char *dbus_init(void); |
1324 | void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset); | |
1325 | void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset); | |
316e2730 | 1326 | # ifdef HAVE_DHCP |
1f15b81d | 1327 | void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname); |
316e2730 | 1328 | # endif |
3d8df260 | 1329 | #endif |
1697269c | 1330 | |
13d86c73 JD |
1331 | /* ipset.c */ |
1332 | #ifdef HAVE_IPSET | |
1333 | void ipset_init(void); | |
1334 | int add_to_ipset(const char *setname, const struct all_addr *ipaddr, int flags, int remove); | |
1335 | #endif | |
1336 | ||
1697269c | 1337 | /* helper.c */ |
0068301d | 1338 | #if defined(HAVE_SCRIPT) |
1a6bca81 | 1339 | int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd); |
5aabfc78 SK |
1340 | void helper_write(void); |
1341 | void queue_script(int action, struct dhcp_lease *lease, | |
1342 | char *hostname, time_t now); | |
a9530964 SK |
1343 | #ifdef HAVE_TFTP |
1344 | void queue_tftp(off_t file_len, char *filename, union mysockaddr *peer); | |
1345 | #endif | |
1697269c | 1346 | int helper_buf_empty(void); |
5aabfc78 | 1347 | #endif |
832af0ba SK |
1348 | |
1349 | /* tftp.c */ | |
1350 | #ifdef HAVE_TFTP | |
5aabfc78 SK |
1351 | void tftp_request(struct listener *listen, time_t now); |
1352 | void check_tftp_listeners(fd_set *rset, time_t now); | |
a9530964 | 1353 | int do_tftp_script_run(void); |
832af0ba | 1354 | #endif |
7de060b0 SK |
1355 | |
1356 | /* conntrack.c */ | |
1357 | #ifdef HAVE_CONNTRACK | |
1358 | int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr, | |
1359 | int istcp, unsigned int *markp); | |
1360 | #endif | |
c72daea8 | 1361 | |
52b92f4d SK |
1362 | /* dhcp6.c */ |
1363 | #ifdef HAVE_DHCP6 | |
1364 | void dhcp6_init(void); | |
1365 | void dhcp6_packet(time_t now); | |
6586e835 | 1366 | struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len, int temp_addr, |
c630924d | 1367 | int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans); |
de92b479 | 1368 | int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr); |
52b92f4d SK |
1369 | struct dhcp_context *address6_available(struct dhcp_context *context, |
1370 | struct in6_addr *taddr, | |
c630924d SK |
1371 | struct dhcp_netid *netids, |
1372 | int plain_range); | |
37c9cceb SK |
1373 | struct dhcp_context *address6_valid(struct dhcp_context *context, |
1374 | struct in6_addr *taddr, | |
c630924d SK |
1375 | struct dhcp_netid *netids, |
1376 | int plain_range); | |
ceae00dd SK |
1377 | struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net, |
1378 | int prefix, u64 addr); | |
4cb1b320 | 1379 | void make_duid(time_t now); |
1f776932 | 1380 | void dhcp_construct_contexts(time_t now); |
8939c95f SK |
1381 | void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac, |
1382 | unsigned int *maclenp, unsigned int *mactypep); | |
52b92f4d | 1383 | #endif |
8939c95f | 1384 | |
c72daea8 SK |
1385 | /* rfc3315.c */ |
1386 | #ifdef HAVE_DHCP6 | |
1d0f91c4 | 1387 | unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name, |
c3a04081 SK |
1388 | struct in6_addr *fallback, struct in6_addr *ll_addr, struct in6_addr *ula_addr, |
1389 | size_t sz, struct in6_addr *client_addr, time_t now); | |
8939c95f | 1390 | void relay_upstream6(struct dhcp_relay *relay, ssize_t sz, struct in6_addr *peer_address, u32 scope_id); |
ff7eea27 SK |
1391 | |
1392 | unsigned short relay_reply6( struct sockaddr_in6 *peer, ssize_t sz, char *arrival_interface); | |
c72daea8 | 1393 | #endif |
4cb1b320 SK |
1394 | |
1395 | /* dhcp-common.c */ | |
ceae00dd | 1396 | #ifdef HAVE_DHCP |
4cb1b320 SK |
1397 | void dhcp_common_init(void); |
1398 | ssize_t recv_dhcp_packet(int fd, struct msghdr *msg); | |
1399 | struct dhcp_netid *run_tag_if(struct dhcp_netid *input); | |
1400 | struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *context_tags, | |
1401 | struct dhcp_opt *opts); | |
1402 | int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly); | |
1403 | char *strip_hostname(char *hostname); | |
1404 | void log_tags(struct dhcp_netid *netid, u32 xid); | |
3634c54e | 1405 | int match_bytes(struct dhcp_opt *o, unsigned char *p, int len); |
ceae00dd | 1406 | void dhcp_update_configs(struct dhcp_config *configs); |
40ef23b5 | 1407 | void display_opts(void); |
bd08ae67 SK |
1408 | int lookup_dhcp_opt(int prot, char *name); |
1409 | int lookup_dhcp_len(int prot, int val); | |
40ef23b5 SK |
1410 | char *option_string(int prot, unsigned int opt, unsigned char *val, |
1411 | int opt_len, char *buf, int buf_len); | |
89500e31 SK |
1412 | struct dhcp_config *find_config(struct dhcp_config *configs, |
1413 | struct dhcp_context *context, | |
1414 | unsigned char *clid, int clid_len, | |
1415 | unsigned char *hwaddr, int hw_len, | |
1416 | int hw_type, char *hostname); | |
1417 | int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type); | |
9380ba70 | 1418 | #ifdef HAVE_LINUX_NETWORK |
3b3f4411 SK |
1419 | char *whichdevice(void); |
1420 | void bindtodevice(char *device, int fd); | |
9380ba70 | 1421 | #endif |
843c96b4 | 1422 | # ifdef HAVE_DHCP6 |
40ef23b5 | 1423 | void display_opts6(void); |
843c96b4 | 1424 | # endif |
1f776932 | 1425 | void log_context(int family, struct dhcp_context *context); |
ff7eea27 | 1426 | void log_relay(int family, struct dhcp_relay *relay); |
c72daea8 | 1427 | #endif |
c5ad4e79 SK |
1428 | |
1429 | /* outpacket.c */ | |
1430 | #ifdef HAVE_DHCP6 | |
1431 | void end_opt6(int container); | |
1432 | int save_counter(int newval); | |
1433 | void *expand(size_t headroom); | |
1434 | int new_opt6(int opt); | |
1435 | void *put_opt6(void *data, size_t len); | |
1436 | void put_opt6_long(unsigned int val); | |
1437 | void put_opt6_short(unsigned int val); | |
1438 | void put_opt6_char(unsigned int val); | |
1439 | void put_opt6_string(char *s); | |
1440 | #endif | |
1441 | ||
1442 | /* radv.c */ | |
1443 | #ifdef HAVE_DHCP6 | |
1444 | void ra_init(time_t now); | |
1f776932 | 1445 | void icmp6_packet(time_t now); |
c5ad4e79 | 1446 | time_t periodic_ra(time_t now); |
353ae4d2 SK |
1447 | void ra_start_unsolicted(time_t now, struct dhcp_context *context); |
1448 | #endif | |
1449 | ||
1450 | /* slaac.c */ | |
1451 | #ifdef HAVE_DHCP6 | |
a9ab732e | 1452 | void slaac_add_addrs(struct dhcp_lease *lease, time_t now, int force); |
353ae4d2 SK |
1453 | time_t periodic_slaac(time_t now, struct dhcp_lease *leases); |
1454 | void slaac_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface, struct dhcp_lease *leases); | |
c5ad4e79 | 1455 | #endif |