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28866e95 | 1 | /* dnsmasq is Copyright (c) 2000-2011 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 | ||
28866e95 | 17 | #define COPYRIGHT "Copyright (c) 2000-2011 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__) | |
9e038946 SK |
27 | # define _GNU_SOURCE |
28 | # include <features.h> | |
29 | #endif | |
30 | ||
316e2730 SK |
31 | /* Need these defined early */ |
32 | #if defined(__sun) || defined(__sun__) | |
33 | # define _XPG4_2 | |
34 | # define __EXTENSIONS__ | |
35 | #endif | |
36 | ||
9e4abcb5 | 37 | /* get these before config.h for IPv6 stuff... */ |
44a2a316 | 38 | #include <sys/types.h> |
1f15b81d | 39 | #include <sys/socket.h> |
9e4abcb5 SK |
40 | #include <netinet/in.h> |
41 | ||
f6b7dc47 | 42 | #ifdef __APPLE__ |
3927da46 SK |
43 | # include <nameser.h> |
44 | # include <arpa/nameser_compat.h> | |
45 | #else | |
46 | # include <arpa/nameser.h> | |
f6b7dc47 | 47 | #endif |
9e4abcb5 | 48 | |
59353a6b SK |
49 | /* and this. */ |
50 | #include <getopt.h> | |
51 | ||
9e4abcb5 | 52 | #include "config.h" |
b8187c80 SK |
53 | |
54 | #define gettext_noop(S) (S) | |
824af85b | 55 | #ifndef LOCALEDIR |
b8187c80 SK |
56 | # define _(S) (S) |
57 | #else | |
58 | # include <libintl.h> | |
59 | # include <locale.h> | |
60 | # define _(S) gettext(S) | |
61 | #endif | |
62 | ||
9e4abcb5 SK |
63 | #include <arpa/inet.h> |
64 | #include <sys/stat.h> | |
9e4abcb5 | 65 | #include <sys/ioctl.h> |
824af85b | 66 | #if defined(HAVE_SOLARIS_NETWORK) |
316e2730 | 67 | # include <sys/sockio.h> |
824af85b | 68 | #endif |
9e4abcb5 | 69 | #include <sys/select.h> |
feba5c1d | 70 | #include <sys/wait.h> |
9e4abcb5 | 71 | #include <sys/time.h> |
f2621c7f | 72 | #include <sys/un.h> |
8a911ccc | 73 | #include <limits.h> |
9e4abcb5 | 74 | #include <net/if.h> |
316e2730 SK |
75 | #if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu) |
76 | /* Some solaris net/if./h omit this. */ | |
77 | # define ifr_mtu ifr_ifru.ifru_metric | |
78 | #endif | |
9e4abcb5 SK |
79 | #include <unistd.h> |
80 | #include <stdio.h> | |
81 | #include <string.h> | |
82 | #include <stdlib.h> | |
83 | #include <fcntl.h> | |
84 | #include <ctype.h> | |
85 | #include <signal.h> | |
9e038946 | 86 | #include <stddef.h> |
9e4abcb5 SK |
87 | #include <time.h> |
88 | #include <errno.h> | |
89 | #include <pwd.h> | |
90 | #include <grp.h> | |
f6b7dc47 | 91 | #include <stdarg.h> |
1a6bca81 | 92 | #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) |
44a2a316 SK |
93 | # include <netinet/if_ether.h> |
94 | #else | |
95 | # include <net/ethernet.h> | |
96 | #endif | |
9e4abcb5 SK |
97 | #include <net/if_arp.h> |
98 | #include <netinet/in_systm.h> | |
99 | #include <netinet/ip.h> | |
3be34541 | 100 | #include <netinet/ip_icmp.h> |
5e9e0efb | 101 | #include <sys/uio.h> |
849a8357 SK |
102 | #include <syslog.h> |
103 | #include <dirent.h> | |
5e9e0efb | 104 | #ifndef HAVE_LINUX_NETWORK |
44a2a316 | 105 | # include <net/if_dl.h> |
9e4abcb5 | 106 | #endif |
5e9e0efb | 107 | |
824af85b | 108 | #if defined(HAVE_LINUX_NETWORK) |
5e9e0efb SK |
109 | #include <linux/capability.h> |
110 | /* There doesn't seem to be a universally-available | |
9e038946 | 111 | userpace header for these. */ |
5e9e0efb | 112 | extern int capset(cap_user_header_t header, cap_user_data_t data); |
9e038946 SK |
113 | extern int capget(cap_user_header_t header, cap_user_data_t data); |
114 | #define LINUX_CAPABILITY_VERSION_1 0x19980330 | |
115 | #define LINUX_CAPABILITY_VERSION_2 0x20071026 | |
1a6bca81 | 116 | #define LINUX_CAPABILITY_VERSION_3 0x20080522 |
9e038946 | 117 | |
5e9e0efb | 118 | #include <sys/prctl.h> |
7622fc06 | 119 | #elif defined(HAVE_SOLARIS_NETWORK) |
824af85b | 120 | #include <priv.h> |
5e9e0efb | 121 | #endif |
9e4abcb5 | 122 | |
824af85b | 123 | /* daemon is function in the C library.... */ |
5aabfc78 SK |
124 | #define daemon dnsmasq_daemon |
125 | ||
126 | /* Async event queue */ | |
127 | struct event_desc { | |
128 | int event, data; | |
129 | }; | |
130 | ||
131 | #define EVENT_RELOAD 1 | |
132 | #define EVENT_DUMP 2 | |
133 | #define EVENT_ALARM 3 | |
134 | #define EVENT_TERM 4 | |
135 | #define EVENT_CHILD 5 | |
136 | #define EVENT_REOPEN 6 | |
137 | #define EVENT_EXITED 7 | |
138 | #define EVENT_KILLED 8 | |
139 | #define EVENT_EXEC_ERR 9 | |
140 | #define EVENT_PIPE_ERR 10 | |
9e038946 | 141 | #define EVENT_USER_ERR 11 |
1a6bca81 SK |
142 | #define EVENT_CAP_ERR 12 |
143 | #define EVENT_PIDFILE 13 | |
144 | #define EVENT_HUSER_ERR 14 | |
145 | #define EVENT_GROUP_ERR 15 | |
146 | #define EVENT_DIE 16 | |
147 | #define EVENT_LOG_ERR 17 | |
7622fc06 | 148 | #define EVENT_FORK_ERR 18 |
5aabfc78 SK |
149 | |
150 | /* Exit codes. */ | |
151 | #define EC_GOOD 0 | |
152 | #define EC_BADCONF 1 | |
153 | #define EC_BADNET 2 | |
154 | #define EC_FILE 3 | |
155 | #define EC_NOMEM 4 | |
156 | #define EC_MISC 5 | |
157 | #define EC_INIT_OFFSET 10 | |
158 | ||
0a852541 SK |
159 | /* Min buffer size: we check after adding each record, so there must be |
160 | memory for the largest packet, and the largest record so the | |
161 | min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000. | |
162 | This might be increased is EDNS packet size if greater than the minimum. | |
cdeda28f SK |
163 | */ |
164 | #define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ | |
44a2a316 | 165 | |
28866e95 SK |
166 | /* Trust the compiler dead-code elimator.... */ |
167 | #define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32))) | |
168 | ||
169 | #define OPT_BOGUSPRIV 0 | |
170 | #define OPT_FILTER 1 | |
171 | #define OPT_LOG 2 | |
172 | #define OPT_SELFMX 3 | |
173 | #define OPT_NO_HOSTS 4 | |
174 | #define OPT_NO_POLL 5 | |
175 | #define OPT_DEBUG 6 | |
176 | #define OPT_ORDER 7 | |
177 | #define OPT_NO_RESOLV 8 | |
178 | #define OPT_EXPAND 9 | |
179 | #define OPT_LOCALMX 10 | |
180 | #define OPT_NO_NEG 11 | |
181 | #define OPT_NODOTS_LOCAL 12 | |
182 | #define OPT_NOWILD 13 | |
183 | #define OPT_ETHERS 14 | |
184 | #define OPT_RESOLV_DOMAIN 15 | |
185 | #define OPT_NO_FORK 16 | |
186 | #define OPT_AUTHORITATIVE 17 | |
187 | #define OPT_LOCALISE 18 | |
188 | #define OPT_DBUS 19 | |
189 | #define OPT_DHCP_FQDN 20 | |
190 | #define OPT_NO_PING 21 | |
191 | #define OPT_LEASE_RO 22 | |
192 | #define OPT_ALL_SERVERS 23 | |
193 | #define OPT_RELOAD 24 | |
194 | #define OPT_LOCAL_REBIND 25 | |
195 | #define OPT_TFTP_SECURE 26 | |
196 | #define OPT_TFTP_NOBLOCK 27 | |
197 | #define OPT_LOG_OPTS 28 | |
198 | #define OPT_TFTP_APREF 29 | |
199 | #define OPT_NO_OVERRIDE 30 | |
200 | #define OPT_NO_REBIND 31 | |
201 | #define OPT_ADD_MAC 32 | |
202 | #define OPT_DNSSEC 33 | |
203 | #define OPT_LAST 34 | |
9e4abcb5 | 204 | |
7622fc06 SK |
205 | /* extra flags for my_syslog, we use a couple of facilities since they are known |
206 | not to occupy the same bits as priorities, no matter how syslog.h is set up. */ | |
207 | #define MS_TFTP LOG_USER | |
208 | #define MS_DHCP LOG_DAEMON | |
209 | ||
9e4abcb5 SK |
210 | struct all_addr { |
211 | union { | |
212 | struct in_addr addr4; | |
213 | #ifdef HAVE_IPV6 | |
214 | struct in6_addr addr6; | |
215 | #endif | |
216 | } addr; | |
217 | }; | |
218 | ||
219 | struct bogus_addr { | |
220 | struct in_addr addr; | |
221 | struct bogus_addr *next; | |
222 | }; | |
223 | ||
1cff166d SK |
224 | /* dns doctor param */ |
225 | struct doctor { | |
73a08a24 | 226 | struct in_addr in, end, out, mask; |
1cff166d SK |
227 | struct doctor *next; |
228 | }; | |
229 | ||
0a852541 SK |
230 | struct mx_srv_record { |
231 | char *name, *target; | |
3d8df260 SK |
232 | int issrv, srvport, priority, weight; |
233 | unsigned int offset; | |
0a852541 | 234 | struct mx_srv_record *next; |
de37951c SK |
235 | }; |
236 | ||
1a6bca81 SK |
237 | struct naptr { |
238 | char *name, *replace, *regexp, *services, *flags; | |
239 | unsigned int order, pref; | |
240 | struct naptr *next; | |
241 | }; | |
242 | ||
0a852541 | 243 | struct txt_record { |
28866e95 SK |
244 | char *name; |
245 | unsigned char *txt; | |
0a852541 SK |
246 | unsigned short class, len; |
247 | struct txt_record *next; | |
f6b7dc47 SK |
248 | }; |
249 | ||
832af0ba SK |
250 | struct ptr_record { |
251 | char *name, *ptr; | |
252 | struct ptr_record *next; | |
253 | }; | |
254 | ||
9009d746 SK |
255 | struct cname { |
256 | char *alias, *target; | |
257 | struct cname *next; | |
258 | }; | |
259 | ||
f2621c7f SK |
260 | struct interface_name { |
261 | char *name; /* domain name */ | |
262 | char *intr; /* interface name */ | |
263 | struct interface_name *next; | |
264 | }; | |
265 | ||
9e4abcb5 SK |
266 | union bigname { |
267 | char name[MAXDNAME]; | |
268 | union bigname *next; /* freelist */ | |
269 | }; | |
270 | ||
271 | struct crec { | |
272 | struct crec *next, *prev, *hash_next; | |
273 | time_t ttd; /* time to die */ | |
fd9fa481 SK |
274 | int uid; |
275 | union { | |
276 | struct all_addr addr; | |
277 | struct { | |
278 | struct crec *cache; | |
279 | int uid; | |
280 | } cname; | |
281 | } addr; | |
9e4abcb5 SK |
282 | unsigned short flags; |
283 | union { | |
284 | char sname[SMALLDNAME]; | |
285 | union bigname *bname; | |
286 | char *namep; | |
287 | } name; | |
288 | }; | |
289 | ||
28866e95 SK |
290 | #define F_IMMORTAL (1u<<0) |
291 | #define F_NAMEP (1u<<1) | |
292 | #define F_REVERSE (1u<<2) | |
293 | #define F_FORWARD (1u<<3) | |
294 | #define F_DHCP (1u<<4) | |
295 | #define F_NEG (1u<<5) | |
296 | #define F_HOSTS (1u<<6) | |
297 | #define F_IPV4 (1u<<7) | |
298 | #define F_IPV6 (1u<<8) | |
299 | #define F_BIGNAME (1u<<9) | |
300 | #define F_NXDOMAIN (1u<<10) | |
301 | #define F_CNAME (1u<<11) | |
302 | #define F_NOERR (1u<<12) | |
303 | #define F_CONFIG (1u<<13) | |
304 | /* below here are only valid as args to log_query: cache | |
305 | entries are limited to 16 bits */ | |
306 | #define F_UPSTREAM (1u<<16) | |
307 | #define F_RRNAME (1u<<17) | |
308 | #define F_SERVER (1u<<18) | |
309 | #define F_QUERY (1u<<19) | |
310 | #define F_NSRR (1u<<20) | |
311 | ||
9e4abcb5 SK |
312 | |
313 | /* struct sockaddr is not large enough to hold any address, | |
cdeda28f | 314 | and specifically not big enough to hold an IPv6 address. |
9e4abcb5 SK |
315 | Blech. Roll our own. */ |
316 | union mysockaddr { | |
317 | struct sockaddr sa; | |
318 | struct sockaddr_in in; | |
7622fc06 | 319 | #if defined(HAVE_IPV6) |
9e4abcb5 SK |
320 | struct sockaddr_in6 in6; |
321 | #endif | |
322 | }; | |
323 | ||
0a852541 SK |
324 | #define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */ |
325 | #define SERV_NO_ADDR 2 /* no server, this domain is local only */ | |
326 | #define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */ | |
5aabfc78 SK |
327 | #define SERV_HAS_DOMAIN 8 /* server for one domain only */ |
328 | #define SERV_HAS_SOURCE 16 /* source address defined */ | |
0a852541 SK |
329 | #define SERV_FOR_NODOTS 32 /* server for names with no domain part only */ |
330 | #define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */ | |
3d8df260 SK |
331 | #define SERV_FROM_DBUS 128 /* 1 if source is DBus */ |
332 | #define SERV_MARK 256 /* for mark-and-delete */ | |
9e4abcb5 | 333 | #define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS) |
824af85b | 334 | #define SERV_COUNTED 512 /* workspace for log code */ |
8ef5ada2 SK |
335 | #define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */ |
336 | #define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */ | |
9e4abcb5 SK |
337 | |
338 | struct serverfd { | |
339 | int fd; | |
340 | union mysockaddr source_addr; | |
824af85b | 341 | char interface[IF_NAMESIZE+1]; |
9e4abcb5 SK |
342 | struct serverfd *next; |
343 | }; | |
344 | ||
1a6bca81 SK |
345 | struct randfd { |
346 | int fd; | |
347 | unsigned short refcount, family; | |
348 | }; | |
349 | ||
9e4abcb5 SK |
350 | struct server { |
351 | union mysockaddr addr, source_addr; | |
824af85b | 352 | char interface[IF_NAMESIZE+1]; |
1697269c | 353 | struct serverfd *sfd; |
9e4abcb5 | 354 | char *domain; /* set if this server only handles a domain. */ |
feba5c1d | 355 | int flags, tcpfd; |
824af85b | 356 | unsigned int queries, failed_queries; |
9e4abcb5 SK |
357 | struct server *next; |
358 | }; | |
359 | ||
9e4abcb5 SK |
360 | struct irec { |
361 | union mysockaddr addr; | |
f6b7dc47 | 362 | struct in_addr netmask; /* only valid for IPv4 */ |
8ef5ada2 SK |
363 | int tftp_ok, mtu; |
364 | char *name; | |
9e4abcb5 SK |
365 | struct irec *next; |
366 | }; | |
367 | ||
44a2a316 | 368 | struct listener { |
832af0ba | 369 | int fd, tcpfd, tftpfd, family; |
f6b7dc47 | 370 | struct irec *iface; /* only valid for non-wildcard */ |
44a2a316 SK |
371 | struct listener *next; |
372 | }; | |
373 | ||
9e4abcb5 SK |
374 | /* interface and address parms from command line. */ |
375 | struct iname { | |
376 | char *name; | |
377 | union mysockaddr addr; | |
de37951c | 378 | int isloop, used; |
9e4abcb5 SK |
379 | struct iname *next; |
380 | }; | |
381 | ||
382 | /* resolv-file parms from command-line */ | |
383 | struct resolvc { | |
384 | struct resolvc *next; | |
3d8df260 SK |
385 | int is_default, logged; |
386 | time_t mtime; | |
9e4abcb5 SK |
387 | char *name; |
388 | }; | |
389 | ||
28866e95 | 390 | /* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */ |
7622fc06 SK |
391 | #define AH_DIR 1 |
392 | #define AH_INACTIVE 2 | |
fd9fa481 SK |
393 | struct hostsfile { |
394 | struct hostsfile *next; | |
7622fc06 | 395 | int flags; |
fd9fa481 | 396 | char *fname; |
cdeda28f | 397 | int index; /* matches to cache entries for logging */ |
fd9fa481 SK |
398 | }; |
399 | ||
28866e95 SK |
400 | #define FREC_NOREBIND 1 |
401 | #define FREC_CHECKING_DISABLED 2 | |
402 | ||
9e4abcb5 SK |
403 | struct frec { |
404 | union mysockaddr source; | |
44a2a316 | 405 | struct all_addr dest; |
832af0ba | 406 | struct server *sentto; /* NULL means free */ |
1a6bca81 SK |
407 | struct randfd *rfd4; |
408 | #ifdef HAVE_IPV6 | |
409 | struct randfd *rfd6; | |
410 | #endif | |
dfa666f2 | 411 | unsigned int iface; |
9e4abcb5 | 412 | unsigned short orig_id, new_id; |
28866e95 | 413 | int fd, forwardall, flags; |
fd9fa481 | 414 | unsigned int crc; |
9e4abcb5 SK |
415 | time_t time; |
416 | struct frec *next; | |
417 | }; | |
418 | ||
1697269c SK |
419 | /* actions in the daemon->helper RPC */ |
420 | #define ACTION_DEL 1 | |
421 | #define ACTION_OLD_HOSTNAME 2 | |
422 | #define ACTION_OLD 3 | |
423 | #define ACTION_ADD 4 | |
424 | ||
cdeda28f SK |
425 | #define DHCP_CHADDR_MAX 16 |
426 | ||
9e4abcb5 SK |
427 | struct dhcp_lease { |
428 | int clid_len; /* length of client identifier */ | |
429 | unsigned char *clid; /* clientid */ | |
430 | char *hostname, *fqdn; /* name from client-hostname option or config */ | |
1697269c | 431 | char *old_hostname; /* hostname before it moved to another lease */ |
7cebd20f SK |
432 | char auth_name; /* hostname came from config, not from client */ |
433 | char new; /* newly created */ | |
208b65c5 SK |
434 | char changed; /* modified */ |
435 | char aux_changed; /* CLID or expiry changed */ | |
9e4abcb5 | 436 | time_t expires; /* lease expiry */ |
5e9e0efb SK |
437 | #ifdef HAVE_BROKEN_RTC |
438 | unsigned int length; | |
439 | #endif | |
cdeda28f SK |
440 | int hwaddr_len, hwaddr_type; |
441 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
1f15b81d | 442 | struct in_addr addr, override, giaddr; |
316e2730 SK |
443 | unsigned char *extradata; |
444 | unsigned int extradata_len, extradata_size; | |
824af85b | 445 | int last_interface; |
9e4abcb5 SK |
446 | struct dhcp_lease *next; |
447 | }; | |
448 | ||
a222641c SK |
449 | struct dhcp_netid { |
450 | char *net; | |
451 | struct dhcp_netid *next; | |
452 | }; | |
453 | ||
26128d27 SK |
454 | struct dhcp_netid_list { |
455 | struct dhcp_netid *list; | |
456 | struct dhcp_netid_list *next; | |
457 | }; | |
1697269c | 458 | |
8ef5ada2 SK |
459 | struct tag_if { |
460 | struct dhcp_netid_list *set; | |
461 | struct dhcp_netid *tag; | |
462 | struct tag_if *next; | |
463 | }; | |
464 | ||
9009d746 SK |
465 | struct hwaddr_config { |
466 | int hwaddr_len, hwaddr_type; | |
467 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
468 | unsigned int wildcard_mask; | |
469 | struct hwaddr_config *next; | |
470 | }; | |
471 | ||
9e4abcb5 | 472 | struct dhcp_config { |
33820b7e | 473 | unsigned int flags; |
9e4abcb5 SK |
474 | int clid_len; /* length of client identifier */ |
475 | unsigned char *clid; /* clientid */ | |
9009d746 | 476 | char *hostname, *domain; |
8ef5ada2 | 477 | struct dhcp_netid_list *netid; |
9e4abcb5 | 478 | struct in_addr addr; |
849a8357 | 479 | time_t decline_time; |
9009d746 SK |
480 | unsigned int lease_time; |
481 | struct hwaddr_config *hwaddr; | |
9e4abcb5 SK |
482 | struct dhcp_config *next; |
483 | }; | |
484 | ||
0a852541 SK |
485 | #define CONFIG_DISABLE 1 |
486 | #define CONFIG_CLID 2 | |
0a852541 SK |
487 | #define CONFIG_TIME 8 |
488 | #define CONFIG_NAME 16 | |
489 | #define CONFIG_ADDR 32 | |
0a852541 | 490 | #define CONFIG_NOCLID 128 |
849a8357 SK |
491 | #define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */ |
492 | #define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */ | |
493 | #define CONFIG_DECLINED 1024 /* address declined by client */ | |
5aabfc78 | 494 | #define CONFIG_BANK 2048 /* from dhcp hosts file */ |
33820b7e | 495 | |
9e4abcb5 | 496 | struct dhcp_opt { |
cdeda28f | 497 | int opt, len, flags; |
73a08a24 SK |
498 | union { |
499 | int encap; | |
500 | unsigned int wildcard_mask; | |
501 | unsigned char *vendor_class; | |
502 | } u; | |
503 | unsigned char *val; | |
26128d27 | 504 | struct dhcp_netid *netid; |
9e4abcb5 | 505 | struct dhcp_opt *next; |
a84fa1d0 SK |
506 | }; |
507 | ||
cdeda28f SK |
508 | #define DHOPT_ADDR 1 |
509 | #define DHOPT_STRING 2 | |
6b01084f | 510 | #define DHOPT_ENCAPSULATE 4 |
73a08a24 | 511 | #define DHOPT_ENCAP_MATCH 8 |
6b01084f | 512 | #define DHOPT_FORCE 16 |
824af85b | 513 | #define DHOPT_BANK 32 |
73a08a24 SK |
514 | #define DHOPT_ENCAP_DONE 64 |
515 | #define DHOPT_MATCH 128 | |
516 | #define DHOPT_VENDOR 256 | |
517 | #define DHOPT_HEX 512 | |
7622fc06 | 518 | #define DHOPT_VENDOR_MATCH 1024 |
316e2730 | 519 | #define DHOPT_RFC3925 2048 |
cdeda28f | 520 | |
26128d27 SK |
521 | struct dhcp_boot { |
522 | char *file, *sname; | |
523 | struct in_addr next_server; | |
524 | struct dhcp_netid *netid; | |
525 | struct dhcp_boot *next; | |
526 | }; | |
527 | ||
7622fc06 SK |
528 | struct pxe_service { |
529 | unsigned short CSA, type; | |
530 | char *menu, *basename; | |
531 | struct in_addr server; | |
532 | struct dhcp_netid *netid; | |
533 | struct pxe_service *next; | |
534 | }; | |
535 | ||
f2621c7f SK |
536 | #define MATCH_VENDOR 1 |
537 | #define MATCH_USER 2 | |
538 | #define MATCH_CIRCUIT 3 | |
539 | #define MATCH_REMOTE 4 | |
540 | #define MATCH_SUBSCRIBER 5 | |
541 | ||
542 | /* vendorclass, userclass, remote-id or cicuit-id */ | |
a84fa1d0 | 543 | struct dhcp_vendor { |
824af85b | 544 | int len, match_type, option; |
a222641c SK |
545 | char *data; |
546 | struct dhcp_netid netid; | |
a84fa1d0 SK |
547 | struct dhcp_vendor *next; |
548 | }; | |
9e4abcb5 | 549 | |
cdeda28f SK |
550 | struct dhcp_mac { |
551 | unsigned int mask; | |
552 | int hwaddr_len, hwaddr_type; | |
553 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
554 | struct dhcp_netid netid; | |
555 | struct dhcp_mac *next; | |
556 | }; | |
557 | ||
832af0ba SK |
558 | struct dhcp_bridge { |
559 | char iface[IF_NAMESIZE]; | |
560 | struct dhcp_bridge *alias, *next; | |
561 | }; | |
832af0ba | 562 | |
9009d746 SK |
563 | struct cond_domain { |
564 | char *domain; | |
565 | struct in_addr start, end; | |
566 | struct cond_domain *next; | |
567 | }; | |
568 | ||
9e4abcb5 | 569 | struct dhcp_context { |
feba5c1d | 570 | unsigned int lease_time, addr_epoch; |
0a852541 SK |
571 | struct in_addr netmask, broadcast; |
572 | struct in_addr local, router; | |
a84fa1d0 | 573 | struct in_addr start, end; /* range of available addresses */ |
0a852541 | 574 | int flags; |
8ef5ada2 | 575 | char *interface; |
cdeda28f | 576 | struct dhcp_netid netid, *filter; |
36717eee | 577 | struct dhcp_context *next, *current; |
9e4abcb5 SK |
578 | }; |
579 | ||
0a852541 | 580 | #define CONTEXT_STATIC 1 |
cdeda28f SK |
581 | #define CONTEXT_NETMASK 2 |
582 | #define CONTEXT_BRDCAST 4 | |
7622fc06 | 583 | #define CONTEXT_PROXY 8 |
0a852541 SK |
584 | |
585 | ||
9e4abcb5 SK |
586 | typedef unsigned char u8; |
587 | typedef unsigned short u16; | |
588 | typedef unsigned int u32; | |
589 | ||
590 | ||
5e9e0efb SK |
591 | struct dhcp_packet { |
592 | u8 op, htype, hlen, hops; | |
593 | u32 xid; | |
594 | u16 secs, flags; | |
595 | struct in_addr ciaddr, yiaddr, siaddr, giaddr; | |
596 | u8 chaddr[DHCP_CHADDR_MAX], sname[64], file[128]; | |
597 | u8 options[312]; | |
9e4abcb5 SK |
598 | }; |
599 | ||
3d8df260 SK |
600 | struct ping_result { |
601 | struct in_addr addr; | |
602 | time_t time; | |
603 | struct ping_result *next; | |
604 | }; | |
9e4abcb5 | 605 | |
832af0ba SK |
606 | struct tftp_file { |
607 | int refcount, fd; | |
608 | off_t size; | |
5aabfc78 SK |
609 | dev_t dev; |
610 | ino_t inode; | |
832af0ba SK |
611 | char filename[]; |
612 | }; | |
613 | ||
614 | struct tftp_transfer { | |
615 | int sockfd; | |
616 | time_t timeout; | |
617 | int backoff; | |
9e038946 SK |
618 | unsigned int block, blocksize, expansion; |
619 | off_t offset; | |
28866e95 | 620 | union mysockaddr peer; |
9e038946 | 621 | char opt_blocksize, opt_transize, netascii, carrylf; |
832af0ba SK |
622 | struct tftp_file *file; |
623 | struct tftp_transfer *next; | |
624 | }; | |
625 | ||
8ef5ada2 SK |
626 | struct addr_list { |
627 | struct in_addr addr; | |
628 | struct addr_list *next; | |
629 | }; | |
630 | ||
631 | struct interface_list { | |
632 | char *interface; | |
633 | struct interface_list *next; | |
634 | }; | |
635 | ||
636 | struct tftp_prefix { | |
637 | char *interface; | |
638 | char *prefix; | |
639 | struct tftp_prefix *next; | |
640 | }; | |
641 | ||
642 | ||
5aabfc78 | 643 | extern struct daemon { |
3be34541 SK |
644 | /* datastuctures representing the command-line and |
645 | config file arguments. All set (including defaults) | |
646 | in option.c */ | |
647 | ||
28866e95 | 648 | unsigned int options, options2; |
3be34541 | 649 | struct resolvc default_resolv, *resolv_files; |
9009d746 | 650 | time_t last_resolv; |
0a852541 | 651 | struct mx_srv_record *mxnames; |
1a6bca81 | 652 | struct naptr *naptr; |
0a852541 | 653 | struct txt_record *txt; |
832af0ba | 654 | struct ptr_record *ptr; |
9009d746 | 655 | struct cname *cnames; |
f2621c7f | 656 | struct interface_name *int_names; |
3be34541 SK |
657 | char *mxtarget; |
658 | char *lease_file; | |
9e038946 | 659 | char *username, *groupname, *scriptuser; |
1a6bca81 | 660 | int group_set, osport; |
3be34541 | 661 | char *domain_suffix; |
9009d746 | 662 | struct cond_domain *cond_domain; |
3be34541 | 663 | char *runfile; |
7cebd20f | 664 | char *lease_change_command; |
3d8df260 | 665 | struct iname *if_names, *if_addrs, *if_except, *dhcp_except; |
3be34541 SK |
666 | struct bogus_addr *bogus_addr; |
667 | struct server *servers; | |
849a8357 | 668 | int log_fac; /* log facility */ |
f2621c7f SK |
669 | char *log_file; /* optional log file */ |
670 | int max_logs; /* queue limit */ | |
208b65c5 | 671 | int cachesize, ftabsize; |
1a6bca81 | 672 | int port, query_port, min_port; |
8ef5ada2 | 673 | unsigned long local_ttl, neg_ttl, max_ttl; |
fd9fa481 | 674 | struct hostsfile *addn_hosts; |
3be34541 SK |
675 | struct dhcp_context *dhcp; |
676 | struct dhcp_config *dhcp_conf; | |
73a08a24 | 677 | struct dhcp_opt *dhcp_opts, *dhcp_match; |
3be34541 | 678 | struct dhcp_vendor *dhcp_vendors; |
cdeda28f | 679 | struct dhcp_mac *dhcp_macs; |
26128d27 | 680 | struct dhcp_boot *boot_config; |
7622fc06 | 681 | struct pxe_service *pxe_services; |
8ef5ada2 SK |
682 | struct tag_if *tag_if; |
683 | struct addr_list *override_relays; | |
684 | int override; | |
1f15b81d | 685 | int enable_pxe; |
8ef5ada2 SK |
686 | struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names; |
687 | struct dhcp_netid_list *force_broadcast, *bootp_dynamic; | |
28866e95 | 688 | struct hostsfile *dhcp_hosts_file, *dhcp_opts_file; |
824af85b | 689 | int dhcp_max, tftp_max; |
9e038946 | 690 | int dhcp_server_port, dhcp_client_port; |
824af85b | 691 | int start_tftp_port, end_tftp_port; |
3be34541 SK |
692 | unsigned int min_leasetime; |
693 | struct doctor *doctors; | |
694 | unsigned short edns_pktsz; | |
824af85b | 695 | char *tftp_prefix; |
8ef5ada2 SK |
696 | struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */ |
697 | struct interface_list *tftp_interfaces; /* interfaces for limited TFTP service */ | |
698 | int tftp_unlimited; | |
3be34541 SK |
699 | |
700 | /* globally used stuff for DNS */ | |
701 | char *packet; /* packet buffer */ | |
0a852541 | 702 | int packet_buff_sz; /* size of above */ |
3be34541 | 703 | char *namebuff; /* MAXDNAME size buffer */ |
824af85b | 704 | unsigned int local_answer, queries_forwarded; |
1a6bca81 | 705 | struct frec *frec_list; |
3be34541 | 706 | struct serverfd *sfds; |
3d8df260 | 707 | struct irec *interfaces; |
3be34541 SK |
708 | struct listener *listeners; |
709 | struct server *last_server; | |
1f15b81d SK |
710 | time_t forwardtime; |
711 | int forwardcount; | |
cdeda28f SK |
712 | struct server *srv_save; /* Used for resend on DoD */ |
713 | size_t packet_len; /* " " */ | |
3927da46 | 714 | struct randfd *rfd_save; /* " " */ |
7622fc06 | 715 | pid_t tcp_pids[MAX_PROCS]; |
1a6bca81 | 716 | struct randfd randomsocks[RANDOM_SOCKS]; |
316e2730 | 717 | int v6pktinfo; |
1a6bca81 | 718 | |
3be34541 | 719 | /* DHCP state */ |
316e2730 | 720 | int dhcpfd, helperfd, pxefd; |
7622fc06 | 721 | #if defined(HAVE_LINUX_NETWORK) |
0a852541 | 722 | int netlinkfd; |
7622fc06 | 723 | #elif defined(HAVE_BSD_NETWORK) |
5e9e0efb | 724 | int dhcp_raw_fd, dhcp_icmp_fd; |
0a852541 | 725 | #endif |
5e9e0efb | 726 | struct iovec dhcp_packet; |
8ef5ada2 | 727 | char *dhcp_buff, *dhcp_buff2, *dhcp_buff3; |
3d8df260 | 728 | struct ping_result *ping_results; |
cdeda28f | 729 | FILE *lease_stream; |
832af0ba | 730 | struct dhcp_bridge *bridges; |
3d8df260 SK |
731 | |
732 | /* DBus stuff */ | |
3d8df260 SK |
733 | /* void * here to avoid depending on dbus headers outside dbus.c */ |
734 | void *dbus; | |
832af0ba | 735 | #ifdef HAVE_DBUS |
3d8df260 SK |
736 | struct watch *watches; |
737 | #endif | |
738 | ||
832af0ba SK |
739 | /* TFTP stuff */ |
740 | struct tftp_transfer *tftp_trans; | |
824af85b | 741 | |
5aabfc78 | 742 | } *daemon; |
3be34541 | 743 | |
9e4abcb5 | 744 | /* cache.c */ |
5aabfc78 | 745 | void cache_init(void); |
28866e95 | 746 | void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg); |
7622fc06 | 747 | char *record_source(int index); |
1a6bca81 | 748 | void querystr(char *str, unsigned short type); |
9e4abcb5 SK |
749 | struct crec *cache_find_by_addr(struct crec *crecp, |
750 | struct all_addr *addr, time_t now, | |
751 | unsigned short prot); | |
752 | struct crec *cache_find_by_name(struct crec *crecp, | |
753 | char *name, time_t now, unsigned short prot); | |
754 | void cache_end_insert(void); | |
755 | void cache_start_insert(void); | |
fd9fa481 SK |
756 | struct crec *cache_insert(char *name, struct all_addr *addr, |
757 | time_t now, unsigned long ttl, unsigned short flags); | |
7622fc06 | 758 | void cache_reload(void); |
5aabfc78 | 759 | void cache_add_dhcp_entry(char *host_name, struct in_addr *host_address, time_t ttd); |
9e4abcb5 | 760 | void cache_unhash_dhcp(void); |
5aabfc78 | 761 | void dump_cache(time_t now); |
9e4abcb5 | 762 | char *cache_get_name(struct crec *crecp); |
7622fc06 | 763 | char *get_domain(struct in_addr addr); |
9e4abcb5 SK |
764 | |
765 | /* rfc1035.c */ | |
28866e95 | 766 | unsigned int extract_request(HEADER *header, size_t qlen, |
c1bb8504 | 767 | char *name, unsigned short *typep); |
cdeda28f | 768 | size_t setup_reply(HEADER *header, size_t qlen, |
28866e95 | 769 | struct all_addr *addrp, unsigned int flags, |
cdeda28f | 770 | unsigned long local_ttl); |
8ef5ada2 | 771 | int extract_addresses(HEADER *header, size_t qlen, char *namebuff, |
28866e95 | 772 | time_t now, int is_sign, int checkrebind, int checking_disabled); |
5aabfc78 | 773 | size_t answer_request(HEADER *header, char *limit, size_t qlen, |
f6b7dc47 | 774 | struct in_addr local_addr, struct in_addr local_netmask, time_t now); |
cdeda28f | 775 | int check_for_bogus_wildcard(HEADER *header, size_t qlen, char *name, |
9e4abcb5 | 776 | struct bogus_addr *addr, time_t now); |
cdeda28f | 777 | unsigned char *find_pseudoheader(HEADER *header, size_t plen, |
832af0ba | 778 | size_t *len, unsigned char **p, int *is_sign); |
5aabfc78 | 779 | int check_for_local_domain(char *name, time_t now); |
cdeda28f SK |
780 | unsigned int questions_crc(HEADER *header, size_t plen, char *buff); |
781 | size_t resize_packet(HEADER *header, size_t plen, | |
782 | unsigned char *pheader, size_t hlen); | |
28866e95 | 783 | size_t add_mac(HEADER *header, size_t plen, char *limit, union mysockaddr *l3); |
9e4abcb5 SK |
784 | |
785 | /* util.c */ | |
1a6bca81 | 786 | void rand_init(void); |
9e4abcb5 | 787 | unsigned short rand16(void); |
1f15b81d SK |
788 | int legal_hostname(char *c); |
789 | char *canonicalise(char *s, int *nomem); | |
3d8df260 | 790 | unsigned char *do_rfc1035_name(unsigned char *p, char *sval); |
0a852541 | 791 | void *safe_malloc(size_t size); |
1a6bca81 | 792 | void safe_pipe(int *fd, int read_noblock); |
5aabfc78 | 793 | void *whine_malloc(size_t size); |
9e4abcb5 SK |
794 | int sa_len(union mysockaddr *addr); |
795 | int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2); | |
3d8df260 | 796 | int hostname_isequal(char *a, char *b); |
5e9e0efb | 797 | time_t dnsmasq_time(void); |
a84fa1d0 | 798 | int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask); |
fd9fa481 | 799 | int retry_send(void); |
0a852541 | 800 | void prettyprint_time(char *buf, unsigned int t); |
3d8df260 | 801 | int prettyprint_addr(union mysockaddr *addr, char *buf); |
0a852541 | 802 | int parse_hex(char *in, unsigned char *out, int maxlen, |
cdeda28f | 803 | unsigned int *wildcard_mask, int *mac_type); |
5e9e0efb SK |
804 | int memcmp_masked(unsigned char *a, unsigned char *b, int len, |
805 | unsigned int mask); | |
806 | int expand_buf(struct iovec *iov, size_t size); | |
5aabfc78 | 807 | char *print_mac(char *buff, unsigned char *mac, int len); |
1697269c | 808 | void bump_maxfd(int fd, int *max); |
1697269c | 809 | int read_write(int fd, unsigned char *packet, int size, int rw); |
7cebd20f | 810 | |
f2621c7f | 811 | /* log.c */ |
5aabfc78 | 812 | void die(char *message, char *arg1, int exit_code); |
1a6bca81 | 813 | int log_start(struct passwd *ent_pw, int errfd); |
5aabfc78 | 814 | int log_reopen(char *log_file); |
f2621c7f SK |
815 | void my_syslog(int priority, const char *format, ...); |
816 | void set_log_writer(fd_set *set, int *maxfdp); | |
817 | void check_log_writer(fd_set *set); | |
5aabfc78 | 818 | void flush_log(void); |
f2621c7f | 819 | |
9e4abcb5 | 820 | /* option.c */ |
5aabfc78 | 821 | void read_opts (int argc, char **argv, char *compile_opts); |
7622fc06 | 822 | char *option_string(unsigned char opt, int *is_ip, int *is_name); |
824af85b | 823 | void reread_dhcp(void); |
28866e95 SK |
824 | void set_option_bool(unsigned int opt); |
825 | struct hostsfile *expand_filelist(struct hostsfile *list); | |
9e4abcb5 SK |
826 | |
827 | /* forward.c */ | |
1a6bca81 | 828 | void reply_query(int fd, int family, time_t now); |
5aabfc78 SK |
829 | void receive_query(struct listener *listen, time_t now); |
830 | unsigned char *tcp_request(int confd, time_t now, | |
3d8df260 | 831 | struct in_addr local_addr, struct in_addr netmask); |
5aabfc78 SK |
832 | void server_gone(struct server *server); |
833 | struct frec *get_new_frec(time_t now, int *wait); | |
3be34541 | 834 | |
9e4abcb5 | 835 | /* network.c */ |
7622fc06 | 836 | int indextoname(int fd, int index, char *name); |
824af85b | 837 | int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp); |
1a6bca81 | 838 | int random_sock(int family); |
824af85b | 839 | void pre_allocate_sfds(void); |
5aabfc78 SK |
840 | int reload_servers(char *fname); |
841 | void check_servers(void); | |
842 | int enumerate_interfaces(); | |
843 | struct listener *create_wildcard_listeners(void); | |
844 | struct listener *create_bound_listeners(void); | |
7622fc06 | 845 | int iface_check(int family, struct all_addr *addr, char *name, int *indexp); |
7cebd20f | 846 | int fix_fd(int fd); |
5aabfc78 | 847 | struct in_addr get_ifaddr(char *intr); |
3be34541 | 848 | |
9e4abcb5 | 849 | /* dhcp.c */ |
7622fc06 | 850 | #ifdef HAVE_DHCP |
5aabfc78 | 851 | void dhcp_init(void); |
316e2730 | 852 | void dhcp_packet(time_t now, int pxe_fd); |
824af85b SK |
853 | struct dhcp_context *address_available(struct dhcp_context *context, |
854 | struct in_addr addr, | |
855 | struct dhcp_netid *netids); | |
856 | struct dhcp_context *narrow_context(struct dhcp_context *context, | |
857 | struct in_addr taddr, | |
858 | struct dhcp_netid *netids); | |
8ef5ada2 SK |
859 | int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly); |
860 | int address_allocate(struct dhcp_context *context, | |
cdeda28f | 861 | struct in_addr *addrp, unsigned char *hwaddr, int hw_len, |
3d8df260 | 862 | struct dhcp_netid *netids, time_t now); |
8ef5ada2 | 863 | struct dhcp_netid *run_tag_if(struct dhcp_netid *input); |
9009d746 | 864 | int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type); |
9e4abcb5 SK |
865 | struct dhcp_config *find_config(struct dhcp_config *configs, |
866 | struct dhcp_context *context, | |
867 | unsigned char *clid, int clid_len, | |
cdeda28f SK |
868 | unsigned char *hwaddr, int hw_len, |
869 | int hw_type, char *hostname); | |
44a2a316 | 870 | void dhcp_update_configs(struct dhcp_config *configs); |
5aabfc78 | 871 | void dhcp_read_ethers(void); |
824af85b | 872 | void check_dhcp_hosts(int fatal); |
dfa666f2 | 873 | struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr); |
5aabfc78 SK |
874 | char *strip_hostname(char *hostname); |
875 | char *host_from_dns(struct in_addr addr); | |
9009d746 | 876 | char *get_domain(struct in_addr addr); |
7622fc06 | 877 | #endif |
3be34541 | 878 | |
9e4abcb5 | 879 | /* lease.c */ |
7622fc06 | 880 | #ifdef HAVE_DHCP |
5aabfc78 SK |
881 | void lease_update_file(time_t now); |
882 | void lease_update_dns(); | |
883 | void lease_init(time_t now); | |
7cebd20f SK |
884 | struct dhcp_lease *lease_allocate(struct in_addr addr); |
885 | void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr, | |
cdeda28f | 886 | unsigned char *clid, int hw_len, int hw_type, int clid_len); |
9009d746 | 887 | void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth); |
5e9e0efb | 888 | void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now); |
824af85b | 889 | void lease_set_interface(struct dhcp_lease *lease, int interface); |
cdeda28f | 890 | struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type, |
0a852541 | 891 | unsigned char *clid, int clid_len); |
9e4abcb5 SK |
892 | struct dhcp_lease *lease_find_by_addr(struct in_addr addr); |
893 | void lease_prune(struct dhcp_lease *target, time_t now); | |
5aabfc78 SK |
894 | void lease_update_from_configs(void); |
895 | int do_script_run(time_t now); | |
896 | void rerun_scripts(void); | |
7622fc06 | 897 | #endif |
a84fa1d0 | 898 | |
9e4abcb5 | 899 | /* rfc2131.c */ |
7622fc06 | 900 | #ifdef HAVE_DHCP |
824af85b | 901 | size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index, |
316e2730 | 902 | size_t sz, time_t now, int unicast_dest, int *is_inform, int pxe_fd); |
9009d746 SK |
903 | unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr, |
904 | int clid_len, unsigned char *clid, int *len_out); | |
7622fc06 | 905 | #endif |
3be34541 SK |
906 | |
907 | /* dnsmasq.c */ | |
7622fc06 | 908 | #ifdef HAVE_DHCP |
5e9e0efb | 909 | int make_icmp_sock(void); |
5aabfc78 | 910 | int icmp_ping(struct in_addr addr); |
7622fc06 | 911 | #endif |
5aabfc78 SK |
912 | void send_event(int fd, int event, int data); |
913 | void clear_cache_and_reload(time_t now); | |
8ef5ada2 | 914 | void poll_resolv(int force, int do_reload, time_t now); |
44a2a316 | 915 | |
0a852541 | 916 | /* netlink.c */ |
5e9e0efb | 917 | #ifdef HAVE_LINUX_NETWORK |
5aabfc78 | 918 | void netlink_init(void); |
5aabfc78 | 919 | void netlink_multicast(void); |
5e9e0efb SK |
920 | #endif |
921 | ||
922 | /* bpf.c */ | |
824af85b | 923 | #ifdef HAVE_BSD_NETWORK |
5aabfc78 SK |
924 | void init_bpf(void); |
925 | void send_via_bpf(struct dhcp_packet *mess, size_t len, | |
5e9e0efb | 926 | struct in_addr iface_addr, struct ifreq *ifr); |
0a852541 | 927 | #endif |
3d8df260 | 928 | |
824af85b | 929 | /* bpf.c or netlink.c */ |
28866e95 | 930 | int iface_enumerate(int family, void *parm, int (callback)()); |
824af85b | 931 | |
3d8df260 SK |
932 | /* dbus.c */ |
933 | #ifdef HAVE_DBUS | |
5aabfc78 SK |
934 | char *dbus_init(void); |
935 | void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset); | |
936 | void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset); | |
316e2730 | 937 | # ifdef HAVE_DHCP |
1f15b81d | 938 | void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname); |
316e2730 | 939 | # endif |
3d8df260 | 940 | #endif |
1697269c SK |
941 | |
942 | /* helper.c */ | |
7622fc06 | 943 | #if defined(HAVE_DHCP) && !defined(NO_FORK) |
1a6bca81 | 944 | int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd); |
5aabfc78 SK |
945 | void helper_write(void); |
946 | void queue_script(int action, struct dhcp_lease *lease, | |
947 | char *hostname, time_t now); | |
1697269c | 948 | int helper_buf_empty(void); |
5aabfc78 | 949 | #endif |
832af0ba SK |
950 | |
951 | /* tftp.c */ | |
952 | #ifdef HAVE_TFTP | |
5aabfc78 SK |
953 | void tftp_request(struct listener *listen, time_t now); |
954 | void check_tftp_listeners(fd_set *rset, time_t now); | |
832af0ba | 955 | #endif |