]>
Commit | Line | Data |
---|---|---|
59546085 | 1 | /* dnsmasq is Copyright (c) 2000-2012 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 | ||
59546085 | 17 | #define COPYRIGHT "Copyright (c) 2000-2012 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" |
b8187c80 | 53 | |
572b41eb SK |
54 | typedef unsigned char u8; |
55 | typedef unsigned short u16; | |
56 | typedef unsigned int u32; | |
57 | ||
58 | #include "dns_protocol.h" | |
59 | #include "dhcp_protocol.h" | |
c72daea8 SK |
60 | #ifdef HAVE_DHCP6 |
61 | #include "dhcp6_protocol.h" | |
62 | #endif | |
572b41eb | 63 | |
b8187c80 | 64 | #define gettext_noop(S) (S) |
824af85b | 65 | #ifndef LOCALEDIR |
b8187c80 SK |
66 | # define _(S) (S) |
67 | #else | |
68 | # include <libintl.h> | |
69 | # include <locale.h> | |
70 | # define _(S) gettext(S) | |
71 | #endif | |
72 | ||
9e4abcb5 SK |
73 | #include <arpa/inet.h> |
74 | #include <sys/stat.h> | |
9e4abcb5 | 75 | #include <sys/ioctl.h> |
824af85b | 76 | #if defined(HAVE_SOLARIS_NETWORK) |
316e2730 | 77 | # include <sys/sockio.h> |
824af85b | 78 | #endif |
9e4abcb5 | 79 | #include <sys/select.h> |
feba5c1d | 80 | #include <sys/wait.h> |
9e4abcb5 | 81 | #include <sys/time.h> |
f2621c7f | 82 | #include <sys/un.h> |
8a911ccc | 83 | #include <limits.h> |
9e4abcb5 | 84 | #include <net/if.h> |
316e2730 SK |
85 | #if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu) |
86 | /* Some solaris net/if./h omit this. */ | |
87 | # define ifr_mtu ifr_ifru.ifru_metric | |
88 | #endif | |
9e4abcb5 SK |
89 | #include <unistd.h> |
90 | #include <stdio.h> | |
91 | #include <string.h> | |
92 | #include <stdlib.h> | |
93 | #include <fcntl.h> | |
94 | #include <ctype.h> | |
95 | #include <signal.h> | |
9e038946 | 96 | #include <stddef.h> |
9e4abcb5 SK |
97 | #include <time.h> |
98 | #include <errno.h> | |
99 | #include <pwd.h> | |
100 | #include <grp.h> | |
f6b7dc47 | 101 | #include <stdarg.h> |
572b41eb | 102 | #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__) |
44a2a316 SK |
103 | # include <netinet/if_ether.h> |
104 | #else | |
105 | # include <net/ethernet.h> | |
106 | #endif | |
9e4abcb5 SK |
107 | #include <net/if_arp.h> |
108 | #include <netinet/in_systm.h> | |
109 | #include <netinet/ip.h> | |
3be34541 | 110 | #include <netinet/ip_icmp.h> |
5e9e0efb | 111 | #include <sys/uio.h> |
849a8357 SK |
112 | #include <syslog.h> |
113 | #include <dirent.h> | |
5e9e0efb | 114 | #ifndef HAVE_LINUX_NETWORK |
44a2a316 | 115 | # include <net/if_dl.h> |
9e4abcb5 | 116 | #endif |
5e9e0efb | 117 | |
824af85b | 118 | #if defined(HAVE_LINUX_NETWORK) |
5e9e0efb SK |
119 | #include <linux/capability.h> |
120 | /* There doesn't seem to be a universally-available | |
9e038946 | 121 | userpace header for these. */ |
5e9e0efb | 122 | extern int capset(cap_user_header_t header, cap_user_data_t data); |
9e038946 SK |
123 | extern int capget(cap_user_header_t header, cap_user_data_t data); |
124 | #define LINUX_CAPABILITY_VERSION_1 0x19980330 | |
125 | #define LINUX_CAPABILITY_VERSION_2 0x20071026 | |
1a6bca81 | 126 | #define LINUX_CAPABILITY_VERSION_3 0x20080522 |
9e038946 | 127 | |
5e9e0efb | 128 | #include <sys/prctl.h> |
7622fc06 | 129 | #elif defined(HAVE_SOLARIS_NETWORK) |
824af85b | 130 | #include <priv.h> |
5e9e0efb | 131 | #endif |
9e4abcb5 | 132 | |
824af85b | 133 | /* daemon is function in the C library.... */ |
5aabfc78 SK |
134 | #define daemon dnsmasq_daemon |
135 | ||
136 | /* Async event queue */ | |
137 | struct event_desc { | |
c72daea8 | 138 | int event, data, msg_sz; |
5aabfc78 SK |
139 | }; |
140 | ||
141 | #define EVENT_RELOAD 1 | |
142 | #define EVENT_DUMP 2 | |
143 | #define EVENT_ALARM 3 | |
144 | #define EVENT_TERM 4 | |
145 | #define EVENT_CHILD 5 | |
146 | #define EVENT_REOPEN 6 | |
147 | #define EVENT_EXITED 7 | |
148 | #define EVENT_KILLED 8 | |
149 | #define EVENT_EXEC_ERR 9 | |
150 | #define EVENT_PIPE_ERR 10 | |
9e038946 | 151 | #define EVENT_USER_ERR 11 |
1a6bca81 SK |
152 | #define EVENT_CAP_ERR 12 |
153 | #define EVENT_PIDFILE 13 | |
154 | #define EVENT_HUSER_ERR 14 | |
155 | #define EVENT_GROUP_ERR 15 | |
156 | #define EVENT_DIE 16 | |
157 | #define EVENT_LOG_ERR 17 | |
7622fc06 | 158 | #define EVENT_FORK_ERR 18 |
c72daea8 | 159 | #define EVENT_LUA_ERR 19 |
5aabfc78 SK |
160 | |
161 | /* Exit codes. */ | |
162 | #define EC_GOOD 0 | |
163 | #define EC_BADCONF 1 | |
164 | #define EC_BADNET 2 | |
165 | #define EC_FILE 3 | |
166 | #define EC_NOMEM 4 | |
167 | #define EC_MISC 5 | |
168 | #define EC_INIT_OFFSET 10 | |
169 | ||
0a852541 SK |
170 | /* Min buffer size: we check after adding each record, so there must be |
171 | memory for the largest packet, and the largest record so the | |
172 | min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000. | |
173 | This might be increased is EDNS packet size if greater than the minimum. | |
cdeda28f SK |
174 | */ |
175 | #define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ | |
44a2a316 | 176 | |
572b41eb | 177 | /* Trust the compiler dead-code eliminator.... */ |
28866e95 SK |
178 | #define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32))) |
179 | ||
180 | #define OPT_BOGUSPRIV 0 | |
181 | #define OPT_FILTER 1 | |
182 | #define OPT_LOG 2 | |
183 | #define OPT_SELFMX 3 | |
184 | #define OPT_NO_HOSTS 4 | |
185 | #define OPT_NO_POLL 5 | |
186 | #define OPT_DEBUG 6 | |
187 | #define OPT_ORDER 7 | |
188 | #define OPT_NO_RESOLV 8 | |
189 | #define OPT_EXPAND 9 | |
190 | #define OPT_LOCALMX 10 | |
191 | #define OPT_NO_NEG 11 | |
192 | #define OPT_NODOTS_LOCAL 12 | |
193 | #define OPT_NOWILD 13 | |
194 | #define OPT_ETHERS 14 | |
195 | #define OPT_RESOLV_DOMAIN 15 | |
196 | #define OPT_NO_FORK 16 | |
197 | #define OPT_AUTHORITATIVE 17 | |
198 | #define OPT_LOCALISE 18 | |
199 | #define OPT_DBUS 19 | |
200 | #define OPT_DHCP_FQDN 20 | |
201 | #define OPT_NO_PING 21 | |
202 | #define OPT_LEASE_RO 22 | |
203 | #define OPT_ALL_SERVERS 23 | |
204 | #define OPT_RELOAD 24 | |
205 | #define OPT_LOCAL_REBIND 25 | |
206 | #define OPT_TFTP_SECURE 26 | |
207 | #define OPT_TFTP_NOBLOCK 27 | |
208 | #define OPT_LOG_OPTS 28 | |
209 | #define OPT_TFTP_APREF 29 | |
210 | #define OPT_NO_OVERRIDE 30 | |
211 | #define OPT_NO_REBIND 31 | |
212 | #define OPT_ADD_MAC 32 | |
213 | #define OPT_DNSSEC 33 | |
7de060b0 SK |
214 | #define OPT_CONSEC_ADDR 34 |
215 | #define OPT_CONNTRACK 35 | |
c72daea8 SK |
216 | #define OPT_FQDN_UPDATE 36 |
217 | #define OPT_LAST 37 | |
9e4abcb5 | 218 | |
7622fc06 SK |
219 | /* extra flags for my_syslog, we use a couple of facilities since they are known |
220 | not to occupy the same bits as priorities, no matter how syslog.h is set up. */ | |
221 | #define MS_TFTP LOG_USER | |
222 | #define MS_DHCP LOG_DAEMON | |
223 | ||
9e4abcb5 SK |
224 | struct all_addr { |
225 | union { | |
226 | struct in_addr addr4; | |
227 | #ifdef HAVE_IPV6 | |
228 | struct in6_addr addr6; | |
229 | #endif | |
230 | } addr; | |
231 | }; | |
232 | ||
233 | struct bogus_addr { | |
234 | struct in_addr addr; | |
235 | struct bogus_addr *next; | |
236 | }; | |
237 | ||
1cff166d SK |
238 | /* dns doctor param */ |
239 | struct doctor { | |
73a08a24 | 240 | struct in_addr in, end, out, mask; |
1cff166d SK |
241 | struct doctor *next; |
242 | }; | |
243 | ||
0a852541 SK |
244 | struct mx_srv_record { |
245 | char *name, *target; | |
3d8df260 SK |
246 | int issrv, srvport, priority, weight; |
247 | unsigned int offset; | |
0a852541 | 248 | struct mx_srv_record *next; |
de37951c SK |
249 | }; |
250 | ||
1a6bca81 SK |
251 | struct naptr { |
252 | char *name, *replace, *regexp, *services, *flags; | |
253 | unsigned int order, pref; | |
254 | struct naptr *next; | |
255 | }; | |
256 | ||
0a852541 | 257 | struct txt_record { |
28866e95 SK |
258 | char *name; |
259 | unsigned char *txt; | |
0a852541 SK |
260 | unsigned short class, len; |
261 | struct txt_record *next; | |
f6b7dc47 SK |
262 | }; |
263 | ||
832af0ba SK |
264 | struct ptr_record { |
265 | char *name, *ptr; | |
266 | struct ptr_record *next; | |
267 | }; | |
268 | ||
9009d746 SK |
269 | struct cname { |
270 | char *alias, *target; | |
271 | struct cname *next; | |
272 | }; | |
273 | ||
f2621c7f SK |
274 | struct interface_name { |
275 | char *name; /* domain name */ | |
276 | char *intr; /* interface name */ | |
277 | struct interface_name *next; | |
278 | }; | |
279 | ||
9e4abcb5 SK |
280 | union bigname { |
281 | char name[MAXDNAME]; | |
282 | union bigname *next; /* freelist */ | |
283 | }; | |
284 | ||
285 | struct crec { | |
286 | struct crec *next, *prev, *hash_next; | |
287 | time_t ttd; /* time to die */ | |
fd9fa481 SK |
288 | int uid; |
289 | union { | |
290 | struct all_addr addr; | |
291 | struct { | |
292 | struct crec *cache; | |
293 | int uid; | |
294 | } cname; | |
295 | } addr; | |
9e4abcb5 SK |
296 | unsigned short flags; |
297 | union { | |
298 | char sname[SMALLDNAME]; | |
299 | union bigname *bname; | |
300 | char *namep; | |
301 | } name; | |
302 | }; | |
303 | ||
28866e95 SK |
304 | #define F_IMMORTAL (1u<<0) |
305 | #define F_NAMEP (1u<<1) | |
306 | #define F_REVERSE (1u<<2) | |
307 | #define F_FORWARD (1u<<3) | |
308 | #define F_DHCP (1u<<4) | |
309 | #define F_NEG (1u<<5) | |
310 | #define F_HOSTS (1u<<6) | |
311 | #define F_IPV4 (1u<<7) | |
312 | #define F_IPV6 (1u<<8) | |
313 | #define F_BIGNAME (1u<<9) | |
314 | #define F_NXDOMAIN (1u<<10) | |
315 | #define F_CNAME (1u<<11) | |
316 | #define F_NOERR (1u<<12) | |
317 | #define F_CONFIG (1u<<13) | |
318 | /* below here are only valid as args to log_query: cache | |
319 | entries are limited to 16 bits */ | |
320 | #define F_UPSTREAM (1u<<16) | |
321 | #define F_RRNAME (1u<<17) | |
322 | #define F_SERVER (1u<<18) | |
323 | #define F_QUERY (1u<<19) | |
28866e95 | 324 | |
9e4abcb5 SK |
325 | |
326 | /* struct sockaddr is not large enough to hold any address, | |
cdeda28f | 327 | and specifically not big enough to hold an IPv6 address. |
9e4abcb5 SK |
328 | Blech. Roll our own. */ |
329 | union mysockaddr { | |
330 | struct sockaddr sa; | |
331 | struct sockaddr_in in; | |
7622fc06 | 332 | #if defined(HAVE_IPV6) |
9e4abcb5 SK |
333 | struct sockaddr_in6 in6; |
334 | #endif | |
335 | }; | |
336 | ||
0a852541 SK |
337 | #define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */ |
338 | #define SERV_NO_ADDR 2 /* no server, this domain is local only */ | |
339 | #define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */ | |
5aabfc78 SK |
340 | #define SERV_HAS_DOMAIN 8 /* server for one domain only */ |
341 | #define SERV_HAS_SOURCE 16 /* source address defined */ | |
0a852541 SK |
342 | #define SERV_FOR_NODOTS 32 /* server for names with no domain part only */ |
343 | #define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */ | |
3d8df260 SK |
344 | #define SERV_FROM_DBUS 128 /* 1 if source is DBus */ |
345 | #define SERV_MARK 256 /* for mark-and-delete */ | |
9e4abcb5 | 346 | #define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS) |
824af85b | 347 | #define SERV_COUNTED 512 /* workspace for log code */ |
8ef5ada2 SK |
348 | #define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */ |
349 | #define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */ | |
9e4abcb5 SK |
350 | |
351 | struct serverfd { | |
352 | int fd; | |
353 | union mysockaddr source_addr; | |
824af85b | 354 | char interface[IF_NAMESIZE+1]; |
9e4abcb5 SK |
355 | struct serverfd *next; |
356 | }; | |
357 | ||
1a6bca81 SK |
358 | struct randfd { |
359 | int fd; | |
360 | unsigned short refcount, family; | |
361 | }; | |
362 | ||
9e4abcb5 SK |
363 | struct server { |
364 | union mysockaddr addr, source_addr; | |
824af85b | 365 | char interface[IF_NAMESIZE+1]; |
1697269c | 366 | struct serverfd *sfd; |
9e4abcb5 | 367 | char *domain; /* set if this server only handles a domain. */ |
feba5c1d | 368 | int flags, tcpfd; |
824af85b | 369 | unsigned int queries, failed_queries; |
9e4abcb5 SK |
370 | struct server *next; |
371 | }; | |
372 | ||
9e4abcb5 SK |
373 | struct irec { |
374 | union mysockaddr addr; | |
f6b7dc47 | 375 | struct in_addr netmask; /* only valid for IPv4 */ |
74c95c25 | 376 | int tftp_ok, mtu, done, dad; |
8ef5ada2 | 377 | char *name; |
9e4abcb5 SK |
378 | struct irec *next; |
379 | }; | |
380 | ||
44a2a316 | 381 | struct listener { |
832af0ba | 382 | int fd, tcpfd, tftpfd, family; |
f6b7dc47 | 383 | struct irec *iface; /* only valid for non-wildcard */ |
44a2a316 SK |
384 | struct listener *next; |
385 | }; | |
386 | ||
9e4abcb5 SK |
387 | /* interface and address parms from command line. */ |
388 | struct iname { | |
389 | char *name; | |
390 | union mysockaddr addr; | |
de37951c | 391 | int isloop, used; |
9e4abcb5 SK |
392 | struct iname *next; |
393 | }; | |
394 | ||
395 | /* resolv-file parms from command-line */ | |
396 | struct resolvc { | |
397 | struct resolvc *next; | |
3d8df260 SK |
398 | int is_default, logged; |
399 | time_t mtime; | |
9e4abcb5 SK |
400 | char *name; |
401 | }; | |
402 | ||
28866e95 | 403 | /* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */ |
7622fc06 SK |
404 | #define AH_DIR 1 |
405 | #define AH_INACTIVE 2 | |
fd9fa481 SK |
406 | struct hostsfile { |
407 | struct hostsfile *next; | |
7622fc06 | 408 | int flags; |
fd9fa481 | 409 | char *fname; |
cdeda28f | 410 | int index; /* matches to cache entries for logging */ |
fd9fa481 SK |
411 | }; |
412 | ||
28866e95 SK |
413 | #define FREC_NOREBIND 1 |
414 | #define FREC_CHECKING_DISABLED 2 | |
415 | ||
9e4abcb5 SK |
416 | struct frec { |
417 | union mysockaddr source; | |
44a2a316 | 418 | struct all_addr dest; |
832af0ba | 419 | struct server *sentto; /* NULL means free */ |
1a6bca81 SK |
420 | struct randfd *rfd4; |
421 | #ifdef HAVE_IPV6 | |
422 | struct randfd *rfd6; | |
423 | #endif | |
dfa666f2 | 424 | unsigned int iface; |
9e4abcb5 | 425 | unsigned short orig_id, new_id; |
28866e95 | 426 | int fd, forwardall, flags; |
fd9fa481 | 427 | unsigned int crc; |
9e4abcb5 SK |
428 | time_t time; |
429 | struct frec *next; | |
430 | }; | |
431 | ||
1697269c SK |
432 | /* actions in the daemon->helper RPC */ |
433 | #define ACTION_DEL 1 | |
434 | #define ACTION_OLD_HOSTNAME 2 | |
435 | #define ACTION_OLD 3 | |
436 | #define ACTION_ADD 4 | |
437 | ||
9e4abcb5 SK |
438 | struct dhcp_lease { |
439 | int clid_len; /* length of client identifier */ | |
440 | unsigned char *clid; /* clientid */ | |
441 | char *hostname, *fqdn; /* name from client-hostname option or config */ | |
1697269c | 442 | char *old_hostname; /* hostname before it moved to another lease */ |
7cebd20f SK |
443 | char auth_name; /* hostname came from config, not from client */ |
444 | char new; /* newly created */ | |
208b65c5 SK |
445 | char changed; /* modified */ |
446 | char aux_changed; /* CLID or expiry changed */ | |
9e4abcb5 | 447 | time_t expires; /* lease expiry */ |
5e9e0efb SK |
448 | #ifdef HAVE_BROKEN_RTC |
449 | unsigned int length; | |
450 | #endif | |
cdeda28f SK |
451 | int hwaddr_len, hwaddr_type; |
452 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
1f15b81d | 453 | struct in_addr addr, override, giaddr; |
316e2730 SK |
454 | unsigned char *extradata; |
455 | unsigned int extradata_len, extradata_size; | |
824af85b | 456 | int last_interface; |
c72daea8 SK |
457 | #ifdef HAVE_DHCP6 |
458 | char is_ipv6; | |
459 | #endif | |
9e4abcb5 SK |
460 | struct dhcp_lease *next; |
461 | }; | |
462 | ||
a222641c SK |
463 | struct dhcp_netid { |
464 | char *net; | |
465 | struct dhcp_netid *next; | |
466 | }; | |
467 | ||
26128d27 SK |
468 | struct dhcp_netid_list { |
469 | struct dhcp_netid *list; | |
470 | struct dhcp_netid_list *next; | |
471 | }; | |
1697269c | 472 | |
8ef5ada2 SK |
473 | struct tag_if { |
474 | struct dhcp_netid_list *set; | |
475 | struct dhcp_netid *tag; | |
476 | struct tag_if *next; | |
477 | }; | |
478 | ||
9009d746 SK |
479 | struct hwaddr_config { |
480 | int hwaddr_len, hwaddr_type; | |
481 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
482 | unsigned int wildcard_mask; | |
483 | struct hwaddr_config *next; | |
484 | }; | |
485 | ||
9e4abcb5 | 486 | struct dhcp_config { |
33820b7e | 487 | unsigned int flags; |
9e4abcb5 SK |
488 | int clid_len; /* length of client identifier */ |
489 | unsigned char *clid; /* clientid */ | |
9009d746 | 490 | char *hostname, *domain; |
8ef5ada2 | 491 | struct dhcp_netid_list *netid; |
9e4abcb5 | 492 | struct in_addr addr; |
849a8357 | 493 | time_t decline_time; |
9009d746 SK |
494 | unsigned int lease_time; |
495 | struct hwaddr_config *hwaddr; | |
9e4abcb5 SK |
496 | struct dhcp_config *next; |
497 | }; | |
498 | ||
0a852541 SK |
499 | #define CONFIG_DISABLE 1 |
500 | #define CONFIG_CLID 2 | |
0a852541 SK |
501 | #define CONFIG_TIME 8 |
502 | #define CONFIG_NAME 16 | |
503 | #define CONFIG_ADDR 32 | |
0a852541 | 504 | #define CONFIG_NOCLID 128 |
849a8357 SK |
505 | #define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */ |
506 | #define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */ | |
507 | #define CONFIG_DECLINED 1024 /* address declined by client */ | |
5aabfc78 | 508 | #define CONFIG_BANK 2048 /* from dhcp hosts file */ |
33820b7e | 509 | |
9e4abcb5 | 510 | struct dhcp_opt { |
cdeda28f | 511 | int opt, len, flags; |
73a08a24 SK |
512 | union { |
513 | int encap; | |
514 | unsigned int wildcard_mask; | |
515 | unsigned char *vendor_class; | |
516 | } u; | |
517 | unsigned char *val; | |
26128d27 | 518 | struct dhcp_netid *netid; |
9e4abcb5 | 519 | struct dhcp_opt *next; |
a84fa1d0 SK |
520 | }; |
521 | ||
cdeda28f SK |
522 | #define DHOPT_ADDR 1 |
523 | #define DHOPT_STRING 2 | |
6b01084f | 524 | #define DHOPT_ENCAPSULATE 4 |
73a08a24 | 525 | #define DHOPT_ENCAP_MATCH 8 |
6b01084f | 526 | #define DHOPT_FORCE 16 |
824af85b | 527 | #define DHOPT_BANK 32 |
73a08a24 SK |
528 | #define DHOPT_ENCAP_DONE 64 |
529 | #define DHOPT_MATCH 128 | |
530 | #define DHOPT_VENDOR 256 | |
531 | #define DHOPT_HEX 512 | |
7622fc06 | 532 | #define DHOPT_VENDOR_MATCH 1024 |
316e2730 | 533 | #define DHOPT_RFC3925 2048 |
7de060b0 | 534 | #define DHOPT_TAGOK 4096 |
cdeda28f | 535 | |
26128d27 | 536 | struct dhcp_boot { |
7de060b0 | 537 | char *file, *sname, *tftp_sname; |
26128d27 SK |
538 | struct in_addr next_server; |
539 | struct dhcp_netid *netid; | |
540 | struct dhcp_boot *next; | |
541 | }; | |
542 | ||
7622fc06 SK |
543 | struct pxe_service { |
544 | unsigned short CSA, type; | |
545 | char *menu, *basename; | |
546 | struct in_addr server; | |
547 | struct dhcp_netid *netid; | |
548 | struct pxe_service *next; | |
549 | }; | |
550 | ||
f2621c7f SK |
551 | #define MATCH_VENDOR 1 |
552 | #define MATCH_USER 2 | |
553 | #define MATCH_CIRCUIT 3 | |
554 | #define MATCH_REMOTE 4 | |
555 | #define MATCH_SUBSCRIBER 5 | |
556 | ||
557 | /* vendorclass, userclass, remote-id or cicuit-id */ | |
a84fa1d0 | 558 | struct dhcp_vendor { |
824af85b | 559 | int len, match_type, option; |
a222641c SK |
560 | char *data; |
561 | struct dhcp_netid netid; | |
a84fa1d0 SK |
562 | struct dhcp_vendor *next; |
563 | }; | |
9e4abcb5 | 564 | |
cdeda28f SK |
565 | struct dhcp_mac { |
566 | unsigned int mask; | |
567 | int hwaddr_len, hwaddr_type; | |
568 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
569 | struct dhcp_netid netid; | |
570 | struct dhcp_mac *next; | |
571 | }; | |
572 | ||
832af0ba SK |
573 | struct dhcp_bridge { |
574 | char iface[IF_NAMESIZE]; | |
575 | struct dhcp_bridge *alias, *next; | |
576 | }; | |
832af0ba | 577 | |
9009d746 SK |
578 | struct cond_domain { |
579 | char *domain; | |
580 | struct in_addr start, end; | |
581 | struct cond_domain *next; | |
582 | }; | |
583 | ||
9e4abcb5 | 584 | struct dhcp_context { |
feba5c1d | 585 | unsigned int lease_time, addr_epoch; |
0a852541 SK |
586 | struct in_addr netmask, broadcast; |
587 | struct in_addr local, router; | |
a84fa1d0 | 588 | struct in_addr start, end; /* range of available addresses */ |
c72daea8 SK |
589 | #ifdef HAVE_DHCP6 |
590 | struct in6_addr start6, end6; /* range of available addresses */ | |
591 | int prefix; | |
592 | #endif | |
0a852541 | 593 | int flags; |
8ef5ada2 | 594 | char *interface; |
cdeda28f | 595 | struct dhcp_netid netid, *filter; |
36717eee | 596 | struct dhcp_context *next, *current; |
9e4abcb5 SK |
597 | }; |
598 | ||
0a852541 | 599 | #define CONTEXT_STATIC 1 |
cdeda28f SK |
600 | #define CONTEXT_NETMASK 2 |
601 | #define CONTEXT_BRDCAST 4 | |
7622fc06 | 602 | #define CONTEXT_PROXY 8 |
c72daea8 | 603 | #define CONTEXT_IPV6 16 |
0a852541 | 604 | |
3d8df260 SK |
605 | struct ping_result { |
606 | struct in_addr addr; | |
607 | time_t time; | |
7de060b0 | 608 | unsigned int hash; |
3d8df260 SK |
609 | struct ping_result *next; |
610 | }; | |
9e4abcb5 | 611 | |
832af0ba SK |
612 | struct tftp_file { |
613 | int refcount, fd; | |
614 | off_t size; | |
5aabfc78 SK |
615 | dev_t dev; |
616 | ino_t inode; | |
832af0ba SK |
617 | char filename[]; |
618 | }; | |
619 | ||
620 | struct tftp_transfer { | |
621 | int sockfd; | |
622 | time_t timeout; | |
623 | int backoff; | |
9e038946 SK |
624 | unsigned int block, blocksize, expansion; |
625 | off_t offset; | |
28866e95 | 626 | union mysockaddr peer; |
9e038946 | 627 | char opt_blocksize, opt_transize, netascii, carrylf; |
832af0ba SK |
628 | struct tftp_file *file; |
629 | struct tftp_transfer *next; | |
630 | }; | |
631 | ||
8ef5ada2 SK |
632 | struct addr_list { |
633 | struct in_addr addr; | |
634 | struct addr_list *next; | |
635 | }; | |
636 | ||
637 | struct interface_list { | |
638 | char *interface; | |
639 | struct interface_list *next; | |
640 | }; | |
641 | ||
642 | struct tftp_prefix { | |
643 | char *interface; | |
644 | char *prefix; | |
645 | struct tftp_prefix *next; | |
646 | }; | |
647 | ||
648 | ||
5aabfc78 | 649 | extern struct daemon { |
3be34541 SK |
650 | /* datastuctures representing the command-line and |
651 | config file arguments. All set (including defaults) | |
652 | in option.c */ | |
653 | ||
28866e95 | 654 | unsigned int options, options2; |
3be34541 | 655 | struct resolvc default_resolv, *resolv_files; |
9009d746 | 656 | time_t last_resolv; |
0a852541 | 657 | struct mx_srv_record *mxnames; |
1a6bca81 | 658 | struct naptr *naptr; |
0a852541 | 659 | struct txt_record *txt; |
832af0ba | 660 | struct ptr_record *ptr; |
9009d746 | 661 | struct cname *cnames; |
f2621c7f | 662 | struct interface_name *int_names; |
3be34541 SK |
663 | char *mxtarget; |
664 | char *lease_file; | |
9e038946 | 665 | char *username, *groupname, *scriptuser; |
c72daea8 | 666 | char *luascript; |
1a6bca81 | 667 | int group_set, osport; |
3be34541 | 668 | char *domain_suffix; |
9009d746 | 669 | struct cond_domain *cond_domain; |
3be34541 | 670 | char *runfile; |
7cebd20f | 671 | char *lease_change_command; |
3d8df260 | 672 | struct iname *if_names, *if_addrs, *if_except, *dhcp_except; |
3be34541 SK |
673 | struct bogus_addr *bogus_addr; |
674 | struct server *servers; | |
849a8357 | 675 | int log_fac; /* log facility */ |
f2621c7f SK |
676 | char *log_file; /* optional log file */ |
677 | int max_logs; /* queue limit */ | |
208b65c5 | 678 | int cachesize, ftabsize; |
1a6bca81 | 679 | int port, query_port, min_port; |
8ef5ada2 | 680 | unsigned long local_ttl, neg_ttl, max_ttl; |
fd9fa481 | 681 | struct hostsfile *addn_hosts; |
c72daea8 | 682 | struct dhcp_context *dhcp, *dhcp6; |
3be34541 | 683 | struct dhcp_config *dhcp_conf; |
73a08a24 | 684 | struct dhcp_opt *dhcp_opts, *dhcp_match; |
3be34541 | 685 | struct dhcp_vendor *dhcp_vendors; |
cdeda28f | 686 | struct dhcp_mac *dhcp_macs; |
26128d27 | 687 | struct dhcp_boot *boot_config; |
7622fc06 | 688 | struct pxe_service *pxe_services; |
8ef5ada2 SK |
689 | struct tag_if *tag_if; |
690 | struct addr_list *override_relays; | |
691 | int override; | |
1f15b81d | 692 | int enable_pxe; |
8ef5ada2 SK |
693 | struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names; |
694 | struct dhcp_netid_list *force_broadcast, *bootp_dynamic; | |
28866e95 | 695 | struct hostsfile *dhcp_hosts_file, *dhcp_opts_file; |
824af85b | 696 | int dhcp_max, tftp_max; |
9e038946 | 697 | int dhcp_server_port, dhcp_client_port; |
824af85b | 698 | int start_tftp_port, end_tftp_port; |
3be34541 SK |
699 | unsigned int min_leasetime; |
700 | struct doctor *doctors; | |
701 | unsigned short edns_pktsz; | |
824af85b | 702 | char *tftp_prefix; |
8ef5ada2 SK |
703 | struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */ |
704 | struct interface_list *tftp_interfaces; /* interfaces for limited TFTP service */ | |
705 | int tftp_unlimited; | |
3be34541 SK |
706 | |
707 | /* globally used stuff for DNS */ | |
708 | char *packet; /* packet buffer */ | |
0a852541 | 709 | int packet_buff_sz; /* size of above */ |
3be34541 | 710 | char *namebuff; /* MAXDNAME size buffer */ |
824af85b | 711 | unsigned int local_answer, queries_forwarded; |
1a6bca81 | 712 | struct frec *frec_list; |
3be34541 | 713 | struct serverfd *sfds; |
3d8df260 | 714 | struct irec *interfaces; |
3be34541 SK |
715 | struct listener *listeners; |
716 | struct server *last_server; | |
1f15b81d SK |
717 | time_t forwardtime; |
718 | int forwardcount; | |
cdeda28f SK |
719 | struct server *srv_save; /* Used for resend on DoD */ |
720 | size_t packet_len; /* " " */ | |
3927da46 | 721 | struct randfd *rfd_save; /* " " */ |
7622fc06 | 722 | pid_t tcp_pids[MAX_PROCS]; |
1a6bca81 | 723 | struct randfd randomsocks[RANDOM_SOCKS]; |
316e2730 | 724 | int v6pktinfo; |
1a6bca81 | 725 | |
3be34541 | 726 | /* DHCP state */ |
316e2730 | 727 | int dhcpfd, helperfd, pxefd; |
7622fc06 | 728 | #if defined(HAVE_LINUX_NETWORK) |
0a852541 | 729 | int netlinkfd; |
7622fc06 | 730 | #elif defined(HAVE_BSD_NETWORK) |
5e9e0efb | 731 | int dhcp_raw_fd, dhcp_icmp_fd; |
0a852541 | 732 | #endif |
5e9e0efb | 733 | struct iovec dhcp_packet; |
8ef5ada2 | 734 | char *dhcp_buff, *dhcp_buff2, *dhcp_buff3; |
3d8df260 | 735 | struct ping_result *ping_results; |
cdeda28f | 736 | FILE *lease_stream; |
832af0ba | 737 | struct dhcp_bridge *bridges; |
c72daea8 SK |
738 | #ifdef HAVE_DHCP6 |
739 | int duid_len; | |
740 | unsigned char *duid; | |
741 | struct iovec outpacket; | |
742 | int dhcp6fd; | |
743 | #endif | |
3d8df260 | 744 | /* DBus stuff */ |
3d8df260 SK |
745 | /* void * here to avoid depending on dbus headers outside dbus.c */ |
746 | void *dbus; | |
832af0ba | 747 | #ifdef HAVE_DBUS |
3d8df260 SK |
748 | struct watch *watches; |
749 | #endif | |
750 | ||
832af0ba SK |
751 | /* TFTP stuff */ |
752 | struct tftp_transfer *tftp_trans; | |
824af85b | 753 | |
c72daea8 SK |
754 | /* utility string buffer, hold max sized IP address as string */ |
755 | char *addrbuff; | |
756 | ||
5aabfc78 | 757 | } *daemon; |
3be34541 | 758 | |
9e4abcb5 | 759 | /* cache.c */ |
5aabfc78 | 760 | void cache_init(void); |
28866e95 | 761 | void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg); |
7622fc06 | 762 | char *record_source(int index); |
1a6bca81 | 763 | void querystr(char *str, unsigned short type); |
9e4abcb5 SK |
764 | struct crec *cache_find_by_addr(struct crec *crecp, |
765 | struct all_addr *addr, time_t now, | |
766 | unsigned short prot); | |
767 | struct crec *cache_find_by_name(struct crec *crecp, | |
768 | char *name, time_t now, unsigned short prot); | |
769 | void cache_end_insert(void); | |
770 | void cache_start_insert(void); | |
fd9fa481 SK |
771 | struct crec *cache_insert(char *name, struct all_addr *addr, |
772 | time_t now, unsigned long ttl, unsigned short flags); | |
7622fc06 | 773 | void cache_reload(void); |
5aabfc78 | 774 | void cache_add_dhcp_entry(char *host_name, struct in_addr *host_address, time_t ttd); |
7de060b0 | 775 | struct in_addr a_record_from_hosts(char *name, time_t now); |
9e4abcb5 | 776 | void cache_unhash_dhcp(void); |
5aabfc78 | 777 | void dump_cache(time_t now); |
9e4abcb5 | 778 | char *cache_get_name(struct crec *crecp); |
7622fc06 | 779 | char *get_domain(struct in_addr addr); |
9e4abcb5 SK |
780 | |
781 | /* rfc1035.c */ | |
572b41eb | 782 | unsigned int extract_request(struct dns_header *header, size_t qlen, |
c1bb8504 | 783 | char *name, unsigned short *typep); |
572b41eb | 784 | size_t setup_reply(struct dns_header *header, size_t qlen, |
28866e95 | 785 | struct all_addr *addrp, unsigned int flags, |
cdeda28f | 786 | unsigned long local_ttl); |
572b41eb | 787 | int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff, |
28866e95 | 788 | time_t now, int is_sign, int checkrebind, int checking_disabled); |
572b41eb | 789 | size_t answer_request(struct dns_header *header, char *limit, size_t qlen, |
f6b7dc47 | 790 | struct in_addr local_addr, struct in_addr local_netmask, time_t now); |
572b41eb | 791 | int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name, |
9e4abcb5 | 792 | struct bogus_addr *addr, time_t now); |
572b41eb | 793 | unsigned char *find_pseudoheader(struct dns_header *header, size_t plen, |
832af0ba | 794 | size_t *len, unsigned char **p, int *is_sign); |
5aabfc78 | 795 | int check_for_local_domain(char *name, time_t now); |
572b41eb SK |
796 | unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff); |
797 | size_t resize_packet(struct dns_header *header, size_t plen, | |
cdeda28f | 798 | unsigned char *pheader, size_t hlen); |
572b41eb | 799 | size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3); |
9e4abcb5 SK |
800 | |
801 | /* util.c */ | |
1a6bca81 | 802 | void rand_init(void); |
9e4abcb5 | 803 | unsigned short rand16(void); |
1f15b81d SK |
804 | int legal_hostname(char *c); |
805 | char *canonicalise(char *s, int *nomem); | |
3d8df260 | 806 | unsigned char *do_rfc1035_name(unsigned char *p, char *sval); |
0a852541 | 807 | void *safe_malloc(size_t size); |
1a6bca81 | 808 | void safe_pipe(int *fd, int read_noblock); |
5aabfc78 | 809 | void *whine_malloc(size_t size); |
9e4abcb5 SK |
810 | int sa_len(union mysockaddr *addr); |
811 | int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2); | |
3d8df260 | 812 | int hostname_isequal(char *a, char *b); |
5e9e0efb | 813 | time_t dnsmasq_time(void); |
a84fa1d0 | 814 | int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask); |
c72daea8 SK |
815 | #ifdef HAVE_IPV6 |
816 | int is_same_net6(struct in6_addr *a, struct in6_addr *b, int prefixlen); | |
817 | #endif | |
fd9fa481 | 818 | int retry_send(void); |
0a852541 | 819 | void prettyprint_time(char *buf, unsigned int t); |
3d8df260 | 820 | int prettyprint_addr(union mysockaddr *addr, char *buf); |
0a852541 | 821 | int parse_hex(char *in, unsigned char *out, int maxlen, |
cdeda28f | 822 | unsigned int *wildcard_mask, int *mac_type); |
5e9e0efb SK |
823 | int memcmp_masked(unsigned char *a, unsigned char *b, int len, |
824 | unsigned int mask); | |
825 | int expand_buf(struct iovec *iov, size_t size); | |
5aabfc78 | 826 | char *print_mac(char *buff, unsigned char *mac, int len); |
1697269c | 827 | void bump_maxfd(int fd, int *max); |
1697269c | 828 | int read_write(int fd, unsigned char *packet, int size, int rw); |
7cebd20f | 829 | |
f2621c7f | 830 | /* log.c */ |
5aabfc78 | 831 | void die(char *message, char *arg1, int exit_code); |
1a6bca81 | 832 | int log_start(struct passwd *ent_pw, int errfd); |
5aabfc78 | 833 | int log_reopen(char *log_file); |
f2621c7f SK |
834 | void my_syslog(int priority, const char *format, ...); |
835 | void set_log_writer(fd_set *set, int *maxfdp); | |
836 | void check_log_writer(fd_set *set); | |
5aabfc78 | 837 | void flush_log(void); |
f2621c7f | 838 | |
9e4abcb5 | 839 | /* option.c */ |
5aabfc78 | 840 | void read_opts (int argc, char **argv, char *compile_opts); |
7622fc06 | 841 | char *option_string(unsigned char opt, int *is_ip, int *is_name); |
824af85b | 842 | void reread_dhcp(void); |
28866e95 SK |
843 | void set_option_bool(unsigned int opt); |
844 | struct hostsfile *expand_filelist(struct hostsfile *list); | |
9e4abcb5 SK |
845 | |
846 | /* forward.c */ | |
1a6bca81 | 847 | void reply_query(int fd, int family, time_t now); |
5aabfc78 SK |
848 | void receive_query(struct listener *listen, time_t now); |
849 | unsigned char *tcp_request(int confd, time_t now, | |
7de060b0 | 850 | union mysockaddr *local_addr, struct in_addr netmask); |
5aabfc78 SK |
851 | void server_gone(struct server *server); |
852 | struct frec *get_new_frec(time_t now, int *wait); | |
c72daea8 SK |
853 | void send_from(int fd, int nowild, char *packet, size_t len, |
854 | union mysockaddr *to, struct all_addr *source, | |
855 | unsigned int iface); | |
3be34541 | 856 | |
9e4abcb5 | 857 | /* network.c */ |
7622fc06 | 858 | int indextoname(int fd, int index, char *name); |
824af85b | 859 | int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp); |
1a6bca81 | 860 | int random_sock(int family); |
824af85b | 861 | void pre_allocate_sfds(void); |
5aabfc78 SK |
862 | int reload_servers(char *fname); |
863 | void check_servers(void); | |
864 | int enumerate_interfaces(); | |
74c95c25 SK |
865 | void create_wildcard_listeners(void); |
866 | void create_bound_listeners(int die); | |
867 | int is_dad_listeners(void); | |
c72daea8 | 868 | int iface_check(int family, struct all_addr *addr, char *name); |
7cebd20f | 869 | int fix_fd(int fd); |
5aabfc78 | 870 | struct in_addr get_ifaddr(char *intr); |
c72daea8 SK |
871 | #ifdef HAVE_IPV6 |
872 | int set_ipv6pktinfo(int fd); | |
873 | #endif | |
3be34541 | 874 | |
9e4abcb5 | 875 | /* dhcp.c */ |
7622fc06 | 876 | #ifdef HAVE_DHCP |
5aabfc78 | 877 | void dhcp_init(void); |
316e2730 | 878 | void dhcp_packet(time_t now, int pxe_fd); |
c72daea8 | 879 | ssize_t recv_dhcp_packet(int fd, struct msghdr *msg); |
824af85b SK |
880 | struct dhcp_context *address_available(struct dhcp_context *context, |
881 | struct in_addr addr, | |
882 | struct dhcp_netid *netids); | |
883 | struct dhcp_context *narrow_context(struct dhcp_context *context, | |
884 | struct in_addr taddr, | |
885 | struct dhcp_netid *netids); | |
8ef5ada2 SK |
886 | int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly); |
887 | int address_allocate(struct dhcp_context *context, | |
cdeda28f | 888 | struct in_addr *addrp, unsigned char *hwaddr, int hw_len, |
3d8df260 | 889 | struct dhcp_netid *netids, time_t now); |
8ef5ada2 | 890 | struct dhcp_netid *run_tag_if(struct dhcp_netid *input); |
9009d746 | 891 | int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type); |
9e4abcb5 SK |
892 | struct dhcp_config *find_config(struct dhcp_config *configs, |
893 | struct dhcp_context *context, | |
894 | unsigned char *clid, int clid_len, | |
cdeda28f SK |
895 | unsigned char *hwaddr, int hw_len, |
896 | int hw_type, char *hostname); | |
44a2a316 | 897 | void dhcp_update_configs(struct dhcp_config *configs); |
5aabfc78 | 898 | void dhcp_read_ethers(void); |
824af85b | 899 | void check_dhcp_hosts(int fatal); |
dfa666f2 | 900 | struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr); |
5aabfc78 SK |
901 | char *strip_hostname(char *hostname); |
902 | char *host_from_dns(struct in_addr addr); | |
9009d746 | 903 | char *get_domain(struct in_addr addr); |
7622fc06 | 904 | #endif |
3be34541 | 905 | |
9e4abcb5 | 906 | /* lease.c */ |
7622fc06 | 907 | #ifdef HAVE_DHCP |
5aabfc78 SK |
908 | void lease_update_file(time_t now); |
909 | void lease_update_dns(); | |
910 | void lease_init(time_t now); | |
c72daea8 SK |
911 | struct dhcp_lease *lease_allocate4(struct in_addr addr); |
912 | #ifdef HAVE_DHCP6 | |
913 | struct dhcp_lease *lease_allocate6(struct in6_addr *addrp); | |
914 | #endif | |
7cebd20f | 915 | void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr, |
cdeda28f | 916 | unsigned char *clid, int hw_len, int hw_type, int clid_len); |
9009d746 | 917 | void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth); |
5e9e0efb | 918 | void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now); |
824af85b | 919 | void lease_set_interface(struct dhcp_lease *lease, int interface); |
cdeda28f | 920 | struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type, |
0a852541 | 921 | unsigned char *clid, int clid_len); |
9e4abcb5 | 922 | struct dhcp_lease *lease_find_by_addr(struct in_addr addr); |
7de060b0 | 923 | struct in_addr lease_find_max_addr(struct dhcp_context *context); |
9e4abcb5 | 924 | void lease_prune(struct dhcp_lease *target, time_t now); |
5aabfc78 SK |
925 | void lease_update_from_configs(void); |
926 | int do_script_run(time_t now); | |
927 | void rerun_scripts(void); | |
7622fc06 | 928 | #endif |
a84fa1d0 | 929 | |
9e4abcb5 | 930 | /* rfc2131.c */ |
7622fc06 | 931 | #ifdef HAVE_DHCP |
824af85b | 932 | size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index, |
7de060b0 | 933 | size_t sz, time_t now, int unicast_dest, int *is_inform, int pxe_fd, struct in_addr fallback); |
9009d746 SK |
934 | unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr, |
935 | int clid_len, unsigned char *clid, int *len_out); | |
7622fc06 | 936 | #endif |
3be34541 SK |
937 | |
938 | /* dnsmasq.c */ | |
7622fc06 | 939 | #ifdef HAVE_DHCP |
5e9e0efb | 940 | int make_icmp_sock(void); |
5aabfc78 | 941 | int icmp_ping(struct in_addr addr); |
7622fc06 | 942 | #endif |
c72daea8 | 943 | void send_event(int fd, int event, int data, char *msg); |
5aabfc78 | 944 | void clear_cache_and_reload(time_t now); |
8ef5ada2 | 945 | void poll_resolv(int force, int do_reload, time_t now); |
44a2a316 | 946 | |
0a852541 | 947 | /* netlink.c */ |
5e9e0efb | 948 | #ifdef HAVE_LINUX_NETWORK |
5aabfc78 | 949 | void netlink_init(void); |
5aabfc78 | 950 | void netlink_multicast(void); |
5e9e0efb SK |
951 | #endif |
952 | ||
953 | /* bpf.c */ | |
824af85b | 954 | #ifdef HAVE_BSD_NETWORK |
5aabfc78 SK |
955 | void init_bpf(void); |
956 | void send_via_bpf(struct dhcp_packet *mess, size_t len, | |
5e9e0efb | 957 | struct in_addr iface_addr, struct ifreq *ifr); |
0a852541 | 958 | #endif |
3d8df260 | 959 | |
824af85b | 960 | /* bpf.c or netlink.c */ |
28866e95 | 961 | int iface_enumerate(int family, void *parm, int (callback)()); |
824af85b | 962 | |
3d8df260 SK |
963 | /* dbus.c */ |
964 | #ifdef HAVE_DBUS | |
5aabfc78 SK |
965 | char *dbus_init(void); |
966 | void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset); | |
967 | void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset); | |
316e2730 | 968 | # ifdef HAVE_DHCP |
1f15b81d | 969 | void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname); |
316e2730 | 970 | # endif |
3d8df260 | 971 | #endif |
1697269c SK |
972 | |
973 | /* helper.c */ | |
7622fc06 | 974 | #if defined(HAVE_DHCP) && !defined(NO_FORK) |
1a6bca81 | 975 | int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd); |
5aabfc78 SK |
976 | void helper_write(void); |
977 | void queue_script(int action, struct dhcp_lease *lease, | |
978 | char *hostname, time_t now); | |
1697269c | 979 | int helper_buf_empty(void); |
5aabfc78 | 980 | #endif |
832af0ba SK |
981 | |
982 | /* tftp.c */ | |
983 | #ifdef HAVE_TFTP | |
5aabfc78 SK |
984 | void tftp_request(struct listener *listen, time_t now); |
985 | void check_tftp_listeners(fd_set *rset, time_t now); | |
832af0ba | 986 | #endif |
7de060b0 SK |
987 | |
988 | /* conntrack.c */ | |
989 | #ifdef HAVE_CONNTRACK | |
990 | int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr, | |
991 | int istcp, unsigned int *markp); | |
992 | #endif | |
c72daea8 SK |
993 | |
994 | /* rfc3315.c */ | |
995 | #ifdef HAVE_DHCP6 | |
996 | void make_duid(time_t now); | |
997 | size_t dhcp6_reply(struct dhcp_context *context, size_t sz); | |
998 | #endif |