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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__) | |
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> |
9e4abcb5 SK |
42 | #include <netinet/in.h> |
43 | ||
59353a6b SK |
44 | /* and this. */ |
45 | #include <getopt.h> | |
46 | ||
9e4abcb5 | 47 | #include "config.h" |
b8187c80 | 48 | |
572b41eb SK |
49 | typedef unsigned char u8; |
50 | typedef unsigned short u16; | |
51 | typedef unsigned int u32; | |
52 | ||
53 | #include "dns_protocol.h" | |
54 | #include "dhcp_protocol.h" | |
55 | ||
b8187c80 | 56 | #define gettext_noop(S) (S) |
824af85b | 57 | #ifndef LOCALEDIR |
b8187c80 SK |
58 | # define _(S) (S) |
59 | #else | |
60 | # include <libintl.h> | |
61 | # include <locale.h> | |
62 | # define _(S) gettext(S) | |
63 | #endif | |
64 | ||
9e4abcb5 SK |
65 | #include <arpa/inet.h> |
66 | #include <sys/stat.h> | |
9e4abcb5 | 67 | #include <sys/ioctl.h> |
824af85b | 68 | #if defined(HAVE_SOLARIS_NETWORK) |
316e2730 | 69 | # include <sys/sockio.h> |
824af85b | 70 | #endif |
9e4abcb5 | 71 | #include <sys/select.h> |
feba5c1d | 72 | #include <sys/wait.h> |
9e4abcb5 | 73 | #include <sys/time.h> |
f2621c7f | 74 | #include <sys/un.h> |
8a911ccc | 75 | #include <limits.h> |
9e4abcb5 | 76 | #include <net/if.h> |
316e2730 SK |
77 | #if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu) |
78 | /* Some solaris net/if./h omit this. */ | |
79 | # define ifr_mtu ifr_ifru.ifru_metric | |
80 | #endif | |
9e4abcb5 SK |
81 | #include <unistd.h> |
82 | #include <stdio.h> | |
83 | #include <string.h> | |
84 | #include <stdlib.h> | |
85 | #include <fcntl.h> | |
86 | #include <ctype.h> | |
87 | #include <signal.h> | |
9e038946 | 88 | #include <stddef.h> |
9e4abcb5 SK |
89 | #include <time.h> |
90 | #include <errno.h> | |
91 | #include <pwd.h> | |
92 | #include <grp.h> | |
f6b7dc47 | 93 | #include <stdarg.h> |
572b41eb | 94 | #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__) |
44a2a316 SK |
95 | # include <netinet/if_ether.h> |
96 | #else | |
97 | # include <net/ethernet.h> | |
98 | #endif | |
9e4abcb5 SK |
99 | #include <net/if_arp.h> |
100 | #include <netinet/in_systm.h> | |
101 | #include <netinet/ip.h> | |
3be34541 | 102 | #include <netinet/ip_icmp.h> |
5e9e0efb | 103 | #include <sys/uio.h> |
849a8357 SK |
104 | #include <syslog.h> |
105 | #include <dirent.h> | |
5e9e0efb | 106 | #ifndef HAVE_LINUX_NETWORK |
44a2a316 | 107 | # include <net/if_dl.h> |
9e4abcb5 | 108 | #endif |
5e9e0efb | 109 | |
824af85b | 110 | #if defined(HAVE_LINUX_NETWORK) |
5e9e0efb SK |
111 | #include <linux/capability.h> |
112 | /* There doesn't seem to be a universally-available | |
9e038946 | 113 | userpace header for these. */ |
5e9e0efb | 114 | extern int capset(cap_user_header_t header, cap_user_data_t data); |
9e038946 SK |
115 | extern int capget(cap_user_header_t header, cap_user_data_t data); |
116 | #define LINUX_CAPABILITY_VERSION_1 0x19980330 | |
117 | #define LINUX_CAPABILITY_VERSION_2 0x20071026 | |
1a6bca81 | 118 | #define LINUX_CAPABILITY_VERSION_3 0x20080522 |
9e038946 | 119 | |
5e9e0efb | 120 | #include <sys/prctl.h> |
7622fc06 | 121 | #elif defined(HAVE_SOLARIS_NETWORK) |
824af85b | 122 | #include <priv.h> |
5e9e0efb | 123 | #endif |
9e4abcb5 | 124 | |
824af85b | 125 | /* daemon is function in the C library.... */ |
5aabfc78 SK |
126 | #define daemon dnsmasq_daemon |
127 | ||
128 | /* Async event queue */ | |
129 | struct event_desc { | |
130 | int event, data; | |
131 | }; | |
132 | ||
133 | #define EVENT_RELOAD 1 | |
134 | #define EVENT_DUMP 2 | |
135 | #define EVENT_ALARM 3 | |
136 | #define EVENT_TERM 4 | |
137 | #define EVENT_CHILD 5 | |
138 | #define EVENT_REOPEN 6 | |
139 | #define EVENT_EXITED 7 | |
140 | #define EVENT_KILLED 8 | |
141 | #define EVENT_EXEC_ERR 9 | |
142 | #define EVENT_PIPE_ERR 10 | |
9e038946 | 143 | #define EVENT_USER_ERR 11 |
1a6bca81 SK |
144 | #define EVENT_CAP_ERR 12 |
145 | #define EVENT_PIDFILE 13 | |
146 | #define EVENT_HUSER_ERR 14 | |
147 | #define EVENT_GROUP_ERR 15 | |
148 | #define EVENT_DIE 16 | |
149 | #define EVENT_LOG_ERR 17 | |
7622fc06 | 150 | #define EVENT_FORK_ERR 18 |
5aabfc78 SK |
151 | |
152 | /* Exit codes. */ | |
153 | #define EC_GOOD 0 | |
154 | #define EC_BADCONF 1 | |
155 | #define EC_BADNET 2 | |
156 | #define EC_FILE 3 | |
157 | #define EC_NOMEM 4 | |
158 | #define EC_MISC 5 | |
159 | #define EC_INIT_OFFSET 10 | |
160 | ||
0a852541 SK |
161 | /* Min buffer size: we check after adding each record, so there must be |
162 | memory for the largest packet, and the largest record so the | |
163 | min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000. | |
164 | This might be increased is EDNS packet size if greater than the minimum. | |
cdeda28f SK |
165 | */ |
166 | #define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ | |
44a2a316 | 167 | |
572b41eb | 168 | /* Trust the compiler dead-code eliminator.... */ |
28866e95 SK |
169 | #define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32))) |
170 | ||
171 | #define OPT_BOGUSPRIV 0 | |
172 | #define OPT_FILTER 1 | |
173 | #define OPT_LOG 2 | |
174 | #define OPT_SELFMX 3 | |
175 | #define OPT_NO_HOSTS 4 | |
176 | #define OPT_NO_POLL 5 | |
177 | #define OPT_DEBUG 6 | |
178 | #define OPT_ORDER 7 | |
179 | #define OPT_NO_RESOLV 8 | |
180 | #define OPT_EXPAND 9 | |
181 | #define OPT_LOCALMX 10 | |
182 | #define OPT_NO_NEG 11 | |
183 | #define OPT_NODOTS_LOCAL 12 | |
184 | #define OPT_NOWILD 13 | |
185 | #define OPT_ETHERS 14 | |
186 | #define OPT_RESOLV_DOMAIN 15 | |
187 | #define OPT_NO_FORK 16 | |
188 | #define OPT_AUTHORITATIVE 17 | |
189 | #define OPT_LOCALISE 18 | |
190 | #define OPT_DBUS 19 | |
191 | #define OPT_DHCP_FQDN 20 | |
192 | #define OPT_NO_PING 21 | |
193 | #define OPT_LEASE_RO 22 | |
194 | #define OPT_ALL_SERVERS 23 | |
195 | #define OPT_RELOAD 24 | |
196 | #define OPT_LOCAL_REBIND 25 | |
197 | #define OPT_TFTP_SECURE 26 | |
198 | #define OPT_TFTP_NOBLOCK 27 | |
199 | #define OPT_LOG_OPTS 28 | |
200 | #define OPT_TFTP_APREF 29 | |
201 | #define OPT_NO_OVERRIDE 30 | |
202 | #define OPT_NO_REBIND 31 | |
203 | #define OPT_ADD_MAC 32 | |
204 | #define OPT_DNSSEC 33 | |
7de060b0 SK |
205 | #define OPT_CONSEC_ADDR 34 |
206 | #define OPT_CONNTRACK 35 | |
207 | #define OPT_LAST 36 | |
9e4abcb5 | 208 | |
7622fc06 SK |
209 | /* extra flags for my_syslog, we use a couple of facilities since they are known |
210 | not to occupy the same bits as priorities, no matter how syslog.h is set up. */ | |
211 | #define MS_TFTP LOG_USER | |
212 | #define MS_DHCP LOG_DAEMON | |
213 | ||
9e4abcb5 SK |
214 | struct all_addr { |
215 | union { | |
216 | struct in_addr addr4; | |
217 | #ifdef HAVE_IPV6 | |
218 | struct in6_addr addr6; | |
219 | #endif | |
220 | } addr; | |
221 | }; | |
222 | ||
223 | struct bogus_addr { | |
224 | struct in_addr addr; | |
225 | struct bogus_addr *next; | |
226 | }; | |
227 | ||
1cff166d SK |
228 | /* dns doctor param */ |
229 | struct doctor { | |
73a08a24 | 230 | struct in_addr in, end, out, mask; |
1cff166d SK |
231 | struct doctor *next; |
232 | }; | |
233 | ||
0a852541 SK |
234 | struct mx_srv_record { |
235 | char *name, *target; | |
3d8df260 SK |
236 | int issrv, srvport, priority, weight; |
237 | unsigned int offset; | |
0a852541 | 238 | struct mx_srv_record *next; |
de37951c SK |
239 | }; |
240 | ||
1a6bca81 SK |
241 | struct naptr { |
242 | char *name, *replace, *regexp, *services, *flags; | |
243 | unsigned int order, pref; | |
244 | struct naptr *next; | |
245 | }; | |
246 | ||
0a852541 | 247 | struct txt_record { |
28866e95 SK |
248 | char *name; |
249 | unsigned char *txt; | |
0a852541 SK |
250 | unsigned short class, len; |
251 | struct txt_record *next; | |
f6b7dc47 SK |
252 | }; |
253 | ||
832af0ba SK |
254 | struct ptr_record { |
255 | char *name, *ptr; | |
256 | struct ptr_record *next; | |
257 | }; | |
258 | ||
9009d746 SK |
259 | struct cname { |
260 | char *alias, *target; | |
261 | struct cname *next; | |
262 | }; | |
263 | ||
f2621c7f SK |
264 | struct interface_name { |
265 | char *name; /* domain name */ | |
266 | char *intr; /* interface name */ | |
267 | struct interface_name *next; | |
268 | }; | |
269 | ||
9e4abcb5 SK |
270 | union bigname { |
271 | char name[MAXDNAME]; | |
272 | union bigname *next; /* freelist */ | |
273 | }; | |
274 | ||
275 | struct crec { | |
276 | struct crec *next, *prev, *hash_next; | |
277 | time_t ttd; /* time to die */ | |
fd9fa481 SK |
278 | int uid; |
279 | union { | |
280 | struct all_addr addr; | |
281 | struct { | |
282 | struct crec *cache; | |
283 | int uid; | |
284 | } cname; | |
285 | } addr; | |
9e4abcb5 SK |
286 | unsigned short flags; |
287 | union { | |
288 | char sname[SMALLDNAME]; | |
289 | union bigname *bname; | |
290 | char *namep; | |
291 | } name; | |
292 | }; | |
293 | ||
28866e95 SK |
294 | #define F_IMMORTAL (1u<<0) |
295 | #define F_NAMEP (1u<<1) | |
296 | #define F_REVERSE (1u<<2) | |
297 | #define F_FORWARD (1u<<3) | |
298 | #define F_DHCP (1u<<4) | |
299 | #define F_NEG (1u<<5) | |
300 | #define F_HOSTS (1u<<6) | |
301 | #define F_IPV4 (1u<<7) | |
302 | #define F_IPV6 (1u<<8) | |
303 | #define F_BIGNAME (1u<<9) | |
304 | #define F_NXDOMAIN (1u<<10) | |
305 | #define F_CNAME (1u<<11) | |
306 | #define F_NOERR (1u<<12) | |
307 | #define F_CONFIG (1u<<13) | |
308 | /* below here are only valid as args to log_query: cache | |
309 | entries are limited to 16 bits */ | |
310 | #define F_UPSTREAM (1u<<16) | |
311 | #define F_RRNAME (1u<<17) | |
312 | #define F_SERVER (1u<<18) | |
313 | #define F_QUERY (1u<<19) | |
28866e95 | 314 | |
9e4abcb5 SK |
315 | |
316 | /* struct sockaddr is not large enough to hold any address, | |
cdeda28f | 317 | and specifically not big enough to hold an IPv6 address. |
9e4abcb5 SK |
318 | Blech. Roll our own. */ |
319 | union mysockaddr { | |
320 | struct sockaddr sa; | |
321 | struct sockaddr_in in; | |
7622fc06 | 322 | #if defined(HAVE_IPV6) |
9e4abcb5 SK |
323 | struct sockaddr_in6 in6; |
324 | #endif | |
325 | }; | |
326 | ||
0a852541 SK |
327 | #define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */ |
328 | #define SERV_NO_ADDR 2 /* no server, this domain is local only */ | |
329 | #define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */ | |
5aabfc78 SK |
330 | #define SERV_HAS_DOMAIN 8 /* server for one domain only */ |
331 | #define SERV_HAS_SOURCE 16 /* source address defined */ | |
0a852541 SK |
332 | #define SERV_FOR_NODOTS 32 /* server for names with no domain part only */ |
333 | #define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */ | |
3d8df260 SK |
334 | #define SERV_FROM_DBUS 128 /* 1 if source is DBus */ |
335 | #define SERV_MARK 256 /* for mark-and-delete */ | |
9e4abcb5 | 336 | #define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS) |
824af85b | 337 | #define SERV_COUNTED 512 /* workspace for log code */ |
8ef5ada2 SK |
338 | #define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */ |
339 | #define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */ | |
9e4abcb5 SK |
340 | |
341 | struct serverfd { | |
342 | int fd; | |
343 | union mysockaddr source_addr; | |
824af85b | 344 | char interface[IF_NAMESIZE+1]; |
9e4abcb5 SK |
345 | struct serverfd *next; |
346 | }; | |
347 | ||
1a6bca81 SK |
348 | struct randfd { |
349 | int fd; | |
350 | unsigned short refcount, family; | |
351 | }; | |
352 | ||
9e4abcb5 SK |
353 | struct server { |
354 | union mysockaddr addr, source_addr; | |
824af85b | 355 | char interface[IF_NAMESIZE+1]; |
1697269c | 356 | struct serverfd *sfd; |
9e4abcb5 | 357 | char *domain; /* set if this server only handles a domain. */ |
feba5c1d | 358 | int flags, tcpfd; |
824af85b | 359 | unsigned int queries, failed_queries; |
9e4abcb5 SK |
360 | struct server *next; |
361 | }; | |
362 | ||
9e4abcb5 SK |
363 | struct irec { |
364 | union mysockaddr addr; | |
f6b7dc47 | 365 | struct in_addr netmask; /* only valid for IPv4 */ |
74c95c25 | 366 | int tftp_ok, mtu, done, dad; |
8ef5ada2 | 367 | char *name; |
9e4abcb5 SK |
368 | struct irec *next; |
369 | }; | |
370 | ||
44a2a316 | 371 | struct listener { |
832af0ba | 372 | int fd, tcpfd, tftpfd, family; |
f6b7dc47 | 373 | struct irec *iface; /* only valid for non-wildcard */ |
44a2a316 SK |
374 | struct listener *next; |
375 | }; | |
376 | ||
9e4abcb5 SK |
377 | /* interface and address parms from command line. */ |
378 | struct iname { | |
379 | char *name; | |
380 | union mysockaddr addr; | |
de37951c | 381 | int isloop, used; |
9e4abcb5 SK |
382 | struct iname *next; |
383 | }; | |
384 | ||
385 | /* resolv-file parms from command-line */ | |
386 | struct resolvc { | |
387 | struct resolvc *next; | |
3d8df260 SK |
388 | int is_default, logged; |
389 | time_t mtime; | |
9e4abcb5 SK |
390 | char *name; |
391 | }; | |
392 | ||
28866e95 | 393 | /* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */ |
7622fc06 SK |
394 | #define AH_DIR 1 |
395 | #define AH_INACTIVE 2 | |
fd9fa481 SK |
396 | struct hostsfile { |
397 | struct hostsfile *next; | |
7622fc06 | 398 | int flags; |
fd9fa481 | 399 | char *fname; |
cdeda28f | 400 | int index; /* matches to cache entries for logging */ |
fd9fa481 SK |
401 | }; |
402 | ||
28866e95 SK |
403 | #define FREC_NOREBIND 1 |
404 | #define FREC_CHECKING_DISABLED 2 | |
405 | ||
9e4abcb5 SK |
406 | struct frec { |
407 | union mysockaddr source; | |
44a2a316 | 408 | struct all_addr dest; |
832af0ba | 409 | struct server *sentto; /* NULL means free */ |
1a6bca81 SK |
410 | struct randfd *rfd4; |
411 | #ifdef HAVE_IPV6 | |
412 | struct randfd *rfd6; | |
413 | #endif | |
dfa666f2 | 414 | unsigned int iface; |
9e4abcb5 | 415 | unsigned short orig_id, new_id; |
28866e95 | 416 | int fd, forwardall, flags; |
fd9fa481 | 417 | unsigned int crc; |
9e4abcb5 SK |
418 | time_t time; |
419 | struct frec *next; | |
420 | }; | |
421 | ||
1697269c SK |
422 | /* actions in the daemon->helper RPC */ |
423 | #define ACTION_DEL 1 | |
424 | #define ACTION_OLD_HOSTNAME 2 | |
425 | #define ACTION_OLD 3 | |
426 | #define ACTION_ADD 4 | |
427 | ||
9e4abcb5 SK |
428 | struct dhcp_lease { |
429 | int clid_len; /* length of client identifier */ | |
430 | unsigned char *clid; /* clientid */ | |
431 | char *hostname, *fqdn; /* name from client-hostname option or config */ | |
1697269c | 432 | char *old_hostname; /* hostname before it moved to another lease */ |
7cebd20f SK |
433 | char auth_name; /* hostname came from config, not from client */ |
434 | char new; /* newly created */ | |
208b65c5 SK |
435 | char changed; /* modified */ |
436 | char aux_changed; /* CLID or expiry changed */ | |
9e4abcb5 | 437 | time_t expires; /* lease expiry */ |
5e9e0efb SK |
438 | #ifdef HAVE_BROKEN_RTC |
439 | unsigned int length; | |
440 | #endif | |
cdeda28f SK |
441 | int hwaddr_len, hwaddr_type; |
442 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
1f15b81d | 443 | struct in_addr addr, override, giaddr; |
316e2730 SK |
444 | unsigned char *extradata; |
445 | unsigned int extradata_len, extradata_size; | |
824af85b | 446 | int last_interface; |
9e4abcb5 SK |
447 | struct dhcp_lease *next; |
448 | }; | |
449 | ||
a222641c SK |
450 | struct dhcp_netid { |
451 | char *net; | |
452 | struct dhcp_netid *next; | |
453 | }; | |
454 | ||
26128d27 SK |
455 | struct dhcp_netid_list { |
456 | struct dhcp_netid *list; | |
457 | struct dhcp_netid_list *next; | |
458 | }; | |
1697269c | 459 | |
8ef5ada2 SK |
460 | struct tag_if { |
461 | struct dhcp_netid_list *set; | |
462 | struct dhcp_netid *tag; | |
463 | struct tag_if *next; | |
464 | }; | |
465 | ||
9009d746 SK |
466 | struct hwaddr_config { |
467 | int hwaddr_len, hwaddr_type; | |
468 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
469 | unsigned int wildcard_mask; | |
470 | struct hwaddr_config *next; | |
471 | }; | |
472 | ||
9e4abcb5 | 473 | struct dhcp_config { |
33820b7e | 474 | unsigned int flags; |
9e4abcb5 SK |
475 | int clid_len; /* length of client identifier */ |
476 | unsigned char *clid; /* clientid */ | |
9009d746 | 477 | char *hostname, *domain; |
8ef5ada2 | 478 | struct dhcp_netid_list *netid; |
9e4abcb5 | 479 | struct in_addr addr; |
849a8357 | 480 | time_t decline_time; |
9009d746 SK |
481 | unsigned int lease_time; |
482 | struct hwaddr_config *hwaddr; | |
9e4abcb5 SK |
483 | struct dhcp_config *next; |
484 | }; | |
485 | ||
0a852541 SK |
486 | #define CONFIG_DISABLE 1 |
487 | #define CONFIG_CLID 2 | |
0a852541 SK |
488 | #define CONFIG_TIME 8 |
489 | #define CONFIG_NAME 16 | |
490 | #define CONFIG_ADDR 32 | |
0a852541 | 491 | #define CONFIG_NOCLID 128 |
849a8357 SK |
492 | #define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */ |
493 | #define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */ | |
494 | #define CONFIG_DECLINED 1024 /* address declined by client */ | |
5aabfc78 | 495 | #define CONFIG_BANK 2048 /* from dhcp hosts file */ |
33820b7e | 496 | |
9e4abcb5 | 497 | struct dhcp_opt { |
cdeda28f | 498 | int opt, len, flags; |
73a08a24 SK |
499 | union { |
500 | int encap; | |
501 | unsigned int wildcard_mask; | |
502 | unsigned char *vendor_class; | |
503 | } u; | |
504 | unsigned char *val; | |
26128d27 | 505 | struct dhcp_netid *netid; |
9e4abcb5 | 506 | struct dhcp_opt *next; |
a84fa1d0 SK |
507 | }; |
508 | ||
cdeda28f SK |
509 | #define DHOPT_ADDR 1 |
510 | #define DHOPT_STRING 2 | |
6b01084f | 511 | #define DHOPT_ENCAPSULATE 4 |
73a08a24 | 512 | #define DHOPT_ENCAP_MATCH 8 |
6b01084f | 513 | #define DHOPT_FORCE 16 |
824af85b | 514 | #define DHOPT_BANK 32 |
73a08a24 SK |
515 | #define DHOPT_ENCAP_DONE 64 |
516 | #define DHOPT_MATCH 128 | |
517 | #define DHOPT_VENDOR 256 | |
518 | #define DHOPT_HEX 512 | |
7622fc06 | 519 | #define DHOPT_VENDOR_MATCH 1024 |
316e2730 | 520 | #define DHOPT_RFC3925 2048 |
7de060b0 | 521 | #define DHOPT_TAGOK 4096 |
cdeda28f | 522 | |
26128d27 | 523 | struct dhcp_boot { |
7de060b0 | 524 | char *file, *sname, *tftp_sname; |
26128d27 SK |
525 | struct in_addr next_server; |
526 | struct dhcp_netid *netid; | |
527 | struct dhcp_boot *next; | |
528 | }; | |
529 | ||
7622fc06 SK |
530 | struct pxe_service { |
531 | unsigned short CSA, type; | |
532 | char *menu, *basename; | |
533 | struct in_addr server; | |
534 | struct dhcp_netid *netid; | |
535 | struct pxe_service *next; | |
536 | }; | |
537 | ||
f2621c7f SK |
538 | #define MATCH_VENDOR 1 |
539 | #define MATCH_USER 2 | |
540 | #define MATCH_CIRCUIT 3 | |
541 | #define MATCH_REMOTE 4 | |
542 | #define MATCH_SUBSCRIBER 5 | |
543 | ||
544 | /* vendorclass, userclass, remote-id or cicuit-id */ | |
a84fa1d0 | 545 | struct dhcp_vendor { |
824af85b | 546 | int len, match_type, option; |
a222641c SK |
547 | char *data; |
548 | struct dhcp_netid netid; | |
a84fa1d0 SK |
549 | struct dhcp_vendor *next; |
550 | }; | |
9e4abcb5 | 551 | |
cdeda28f SK |
552 | struct dhcp_mac { |
553 | unsigned int mask; | |
554 | int hwaddr_len, hwaddr_type; | |
555 | unsigned char hwaddr[DHCP_CHADDR_MAX]; | |
556 | struct dhcp_netid netid; | |
557 | struct dhcp_mac *next; | |
558 | }; | |
559 | ||
832af0ba SK |
560 | struct dhcp_bridge { |
561 | char iface[IF_NAMESIZE]; | |
562 | struct dhcp_bridge *alias, *next; | |
563 | }; | |
832af0ba | 564 | |
9009d746 SK |
565 | struct cond_domain { |
566 | char *domain; | |
567 | struct in_addr start, end; | |
568 | struct cond_domain *next; | |
569 | }; | |
570 | ||
9e4abcb5 | 571 | struct dhcp_context { |
feba5c1d | 572 | unsigned int lease_time, addr_epoch; |
0a852541 SK |
573 | struct in_addr netmask, broadcast; |
574 | struct in_addr local, router; | |
a84fa1d0 | 575 | struct in_addr start, end; /* range of available addresses */ |
0a852541 | 576 | int flags; |
8ef5ada2 | 577 | char *interface; |
cdeda28f | 578 | struct dhcp_netid netid, *filter; |
36717eee | 579 | struct dhcp_context *next, *current; |
9e4abcb5 SK |
580 | }; |
581 | ||
0a852541 | 582 | #define CONTEXT_STATIC 1 |
cdeda28f SK |
583 | #define CONTEXT_NETMASK 2 |
584 | #define CONTEXT_BRDCAST 4 | |
7622fc06 | 585 | #define CONTEXT_PROXY 8 |
0a852541 | 586 | |
3d8df260 SK |
587 | struct ping_result { |
588 | struct in_addr addr; | |
589 | time_t time; | |
7de060b0 | 590 | unsigned int hash; |
3d8df260 SK |
591 | struct ping_result *next; |
592 | }; | |
9e4abcb5 | 593 | |
832af0ba SK |
594 | struct tftp_file { |
595 | int refcount, fd; | |
596 | off_t size; | |
5aabfc78 SK |
597 | dev_t dev; |
598 | ino_t inode; | |
832af0ba SK |
599 | char filename[]; |
600 | }; | |
601 | ||
602 | struct tftp_transfer { | |
603 | int sockfd; | |
604 | time_t timeout; | |
605 | int backoff; | |
9e038946 SK |
606 | unsigned int block, blocksize, expansion; |
607 | off_t offset; | |
28866e95 | 608 | union mysockaddr peer; |
9e038946 | 609 | char opt_blocksize, opt_transize, netascii, carrylf; |
832af0ba SK |
610 | struct tftp_file *file; |
611 | struct tftp_transfer *next; | |
612 | }; | |
613 | ||
8ef5ada2 SK |
614 | struct addr_list { |
615 | struct in_addr addr; | |
616 | struct addr_list *next; | |
617 | }; | |
618 | ||
619 | struct interface_list { | |
620 | char *interface; | |
621 | struct interface_list *next; | |
622 | }; | |
623 | ||
624 | struct tftp_prefix { | |
625 | char *interface; | |
626 | char *prefix; | |
627 | struct tftp_prefix *next; | |
628 | }; | |
629 | ||
630 | ||
5aabfc78 | 631 | extern struct daemon { |
3be34541 SK |
632 | /* datastuctures representing the command-line and |
633 | config file arguments. All set (including defaults) | |
634 | in option.c */ | |
635 | ||
28866e95 | 636 | unsigned int options, options2; |
3be34541 | 637 | struct resolvc default_resolv, *resolv_files; |
9009d746 | 638 | time_t last_resolv; |
0a852541 | 639 | struct mx_srv_record *mxnames; |
1a6bca81 | 640 | struct naptr *naptr; |
0a852541 | 641 | struct txt_record *txt; |
832af0ba | 642 | struct ptr_record *ptr; |
9009d746 | 643 | struct cname *cnames; |
f2621c7f | 644 | struct interface_name *int_names; |
3be34541 SK |
645 | char *mxtarget; |
646 | char *lease_file; | |
9e038946 | 647 | char *username, *groupname, *scriptuser; |
1a6bca81 | 648 | int group_set, osport; |
3be34541 | 649 | char *domain_suffix; |
9009d746 | 650 | struct cond_domain *cond_domain; |
3be34541 | 651 | char *runfile; |
7cebd20f | 652 | char *lease_change_command; |
3d8df260 | 653 | struct iname *if_names, *if_addrs, *if_except, *dhcp_except; |
3be34541 SK |
654 | struct bogus_addr *bogus_addr; |
655 | struct server *servers; | |
849a8357 | 656 | int log_fac; /* log facility */ |
f2621c7f SK |
657 | char *log_file; /* optional log file */ |
658 | int max_logs; /* queue limit */ | |
208b65c5 | 659 | int cachesize, ftabsize; |
1a6bca81 | 660 | int port, query_port, min_port; |
8ef5ada2 | 661 | unsigned long local_ttl, neg_ttl, max_ttl; |
fd9fa481 | 662 | struct hostsfile *addn_hosts; |
3be34541 SK |
663 | struct dhcp_context *dhcp; |
664 | struct dhcp_config *dhcp_conf; | |
73a08a24 | 665 | struct dhcp_opt *dhcp_opts, *dhcp_match; |
3be34541 | 666 | struct dhcp_vendor *dhcp_vendors; |
cdeda28f | 667 | struct dhcp_mac *dhcp_macs; |
26128d27 | 668 | struct dhcp_boot *boot_config; |
7622fc06 | 669 | struct pxe_service *pxe_services; |
8ef5ada2 SK |
670 | struct tag_if *tag_if; |
671 | struct addr_list *override_relays; | |
672 | int override; | |
1f15b81d | 673 | int enable_pxe; |
8ef5ada2 SK |
674 | struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names; |
675 | struct dhcp_netid_list *force_broadcast, *bootp_dynamic; | |
28866e95 | 676 | struct hostsfile *dhcp_hosts_file, *dhcp_opts_file; |
824af85b | 677 | int dhcp_max, tftp_max; |
9e038946 | 678 | int dhcp_server_port, dhcp_client_port; |
824af85b | 679 | int start_tftp_port, end_tftp_port; |
3be34541 SK |
680 | unsigned int min_leasetime; |
681 | struct doctor *doctors; | |
682 | unsigned short edns_pktsz; | |
824af85b | 683 | char *tftp_prefix; |
8ef5ada2 SK |
684 | struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */ |
685 | struct interface_list *tftp_interfaces; /* interfaces for limited TFTP service */ | |
686 | int tftp_unlimited; | |
3be34541 SK |
687 | |
688 | /* globally used stuff for DNS */ | |
689 | char *packet; /* packet buffer */ | |
0a852541 | 690 | int packet_buff_sz; /* size of above */ |
3be34541 | 691 | char *namebuff; /* MAXDNAME size buffer */ |
824af85b | 692 | unsigned int local_answer, queries_forwarded; |
1a6bca81 | 693 | struct frec *frec_list; |
3be34541 | 694 | struct serverfd *sfds; |
3d8df260 | 695 | struct irec *interfaces; |
3be34541 SK |
696 | struct listener *listeners; |
697 | struct server *last_server; | |
1f15b81d SK |
698 | time_t forwardtime; |
699 | int forwardcount; | |
cdeda28f SK |
700 | struct server *srv_save; /* Used for resend on DoD */ |
701 | size_t packet_len; /* " " */ | |
3927da46 | 702 | struct randfd *rfd_save; /* " " */ |
7622fc06 | 703 | pid_t tcp_pids[MAX_PROCS]; |
1a6bca81 | 704 | struct randfd randomsocks[RANDOM_SOCKS]; |
316e2730 | 705 | int v6pktinfo; |
1a6bca81 | 706 | |
3be34541 | 707 | /* DHCP state */ |
316e2730 | 708 | int dhcpfd, helperfd, pxefd; |
7622fc06 | 709 | #if defined(HAVE_LINUX_NETWORK) |
0a852541 | 710 | int netlinkfd; |
7622fc06 | 711 | #elif defined(HAVE_BSD_NETWORK) |
5e9e0efb | 712 | int dhcp_raw_fd, dhcp_icmp_fd; |
0a852541 | 713 | #endif |
5e9e0efb | 714 | struct iovec dhcp_packet; |
8ef5ada2 | 715 | char *dhcp_buff, *dhcp_buff2, *dhcp_buff3; |
3d8df260 | 716 | struct ping_result *ping_results; |
cdeda28f | 717 | FILE *lease_stream; |
832af0ba | 718 | struct dhcp_bridge *bridges; |
3d8df260 SK |
719 | |
720 | /* DBus stuff */ | |
3d8df260 SK |
721 | /* void * here to avoid depending on dbus headers outside dbus.c */ |
722 | void *dbus; | |
832af0ba | 723 | #ifdef HAVE_DBUS |
3d8df260 SK |
724 | struct watch *watches; |
725 | #endif | |
726 | ||
832af0ba SK |
727 | /* TFTP stuff */ |
728 | struct tftp_transfer *tftp_trans; | |
824af85b | 729 | |
5aabfc78 | 730 | } *daemon; |
3be34541 | 731 | |
9e4abcb5 | 732 | /* cache.c */ |
5aabfc78 | 733 | void cache_init(void); |
28866e95 | 734 | void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg); |
7622fc06 | 735 | char *record_source(int index); |
1a6bca81 | 736 | void querystr(char *str, unsigned short type); |
9e4abcb5 SK |
737 | struct crec *cache_find_by_addr(struct crec *crecp, |
738 | struct all_addr *addr, time_t now, | |
739 | unsigned short prot); | |
740 | struct crec *cache_find_by_name(struct crec *crecp, | |
741 | char *name, time_t now, unsigned short prot); | |
742 | void cache_end_insert(void); | |
743 | void cache_start_insert(void); | |
fd9fa481 SK |
744 | struct crec *cache_insert(char *name, struct all_addr *addr, |
745 | time_t now, unsigned long ttl, unsigned short flags); | |
7622fc06 | 746 | void cache_reload(void); |
5aabfc78 | 747 | void cache_add_dhcp_entry(char *host_name, struct in_addr *host_address, time_t ttd); |
7de060b0 | 748 | struct in_addr a_record_from_hosts(char *name, time_t now); |
9e4abcb5 | 749 | void cache_unhash_dhcp(void); |
5aabfc78 | 750 | void dump_cache(time_t now); |
9e4abcb5 | 751 | char *cache_get_name(struct crec *crecp); |
7622fc06 | 752 | char *get_domain(struct in_addr addr); |
9e4abcb5 SK |
753 | |
754 | /* rfc1035.c */ | |
572b41eb | 755 | unsigned int extract_request(struct dns_header *header, size_t qlen, |
c1bb8504 | 756 | char *name, unsigned short *typep); |
572b41eb | 757 | size_t setup_reply(struct dns_header *header, size_t qlen, |
28866e95 | 758 | struct all_addr *addrp, unsigned int flags, |
cdeda28f | 759 | unsigned long local_ttl); |
572b41eb | 760 | int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff, |
28866e95 | 761 | time_t now, int is_sign, int checkrebind, int checking_disabled); |
572b41eb | 762 | size_t answer_request(struct dns_header *header, char *limit, size_t qlen, |
f6b7dc47 | 763 | struct in_addr local_addr, struct in_addr local_netmask, time_t now); |
572b41eb | 764 | int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name, |
9e4abcb5 | 765 | struct bogus_addr *addr, time_t now); |
572b41eb | 766 | unsigned char *find_pseudoheader(struct dns_header *header, size_t plen, |
832af0ba | 767 | size_t *len, unsigned char **p, int *is_sign); |
5aabfc78 | 768 | int check_for_local_domain(char *name, time_t now); |
572b41eb SK |
769 | unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff); |
770 | size_t resize_packet(struct dns_header *header, size_t plen, | |
cdeda28f | 771 | unsigned char *pheader, size_t hlen); |
572b41eb | 772 | size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3); |
9e4abcb5 SK |
773 | |
774 | /* util.c */ | |
1a6bca81 | 775 | void rand_init(void); |
9e4abcb5 | 776 | unsigned short rand16(void); |
1f15b81d SK |
777 | int legal_hostname(char *c); |
778 | char *canonicalise(char *s, int *nomem); | |
3d8df260 | 779 | unsigned char *do_rfc1035_name(unsigned char *p, char *sval); |
0a852541 | 780 | void *safe_malloc(size_t size); |
1a6bca81 | 781 | void safe_pipe(int *fd, int read_noblock); |
5aabfc78 | 782 | void *whine_malloc(size_t size); |
9e4abcb5 SK |
783 | int sa_len(union mysockaddr *addr); |
784 | int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2); | |
3d8df260 | 785 | int hostname_isequal(char *a, char *b); |
5e9e0efb | 786 | time_t dnsmasq_time(void); |
a84fa1d0 | 787 | int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask); |
fd9fa481 | 788 | int retry_send(void); |
0a852541 | 789 | void prettyprint_time(char *buf, unsigned int t); |
3d8df260 | 790 | int prettyprint_addr(union mysockaddr *addr, char *buf); |
0a852541 | 791 | int parse_hex(char *in, unsigned char *out, int maxlen, |
cdeda28f | 792 | unsigned int *wildcard_mask, int *mac_type); |
5e9e0efb SK |
793 | int memcmp_masked(unsigned char *a, unsigned char *b, int len, |
794 | unsigned int mask); | |
795 | int expand_buf(struct iovec *iov, size_t size); | |
5aabfc78 | 796 | char *print_mac(char *buff, unsigned char *mac, int len); |
1697269c | 797 | void bump_maxfd(int fd, int *max); |
1697269c | 798 | int read_write(int fd, unsigned char *packet, int size, int rw); |
7cebd20f | 799 | |
f2621c7f | 800 | /* log.c */ |
5aabfc78 | 801 | void die(char *message, char *arg1, int exit_code); |
1a6bca81 | 802 | int log_start(struct passwd *ent_pw, int errfd); |
5aabfc78 | 803 | int log_reopen(char *log_file); |
f2621c7f SK |
804 | void my_syslog(int priority, const char *format, ...); |
805 | void set_log_writer(fd_set *set, int *maxfdp); | |
806 | void check_log_writer(fd_set *set); | |
5aabfc78 | 807 | void flush_log(void); |
f2621c7f | 808 | |
9e4abcb5 | 809 | /* option.c */ |
5aabfc78 | 810 | void read_opts (int argc, char **argv, char *compile_opts); |
7622fc06 | 811 | char *option_string(unsigned char opt, int *is_ip, int *is_name); |
824af85b | 812 | void reread_dhcp(void); |
28866e95 SK |
813 | void set_option_bool(unsigned int opt); |
814 | struct hostsfile *expand_filelist(struct hostsfile *list); | |
9e4abcb5 SK |
815 | |
816 | /* forward.c */ | |
1a6bca81 | 817 | void reply_query(int fd, int family, time_t now); |
5aabfc78 SK |
818 | void receive_query(struct listener *listen, time_t now); |
819 | unsigned char *tcp_request(int confd, time_t now, | |
7de060b0 | 820 | union mysockaddr *local_addr, struct in_addr netmask); |
5aabfc78 SK |
821 | void server_gone(struct server *server); |
822 | struct frec *get_new_frec(time_t now, int *wait); | |
3be34541 | 823 | |
9e4abcb5 | 824 | /* network.c */ |
7622fc06 | 825 | int indextoname(int fd, int index, char *name); |
824af85b | 826 | int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp); |
1a6bca81 | 827 | int random_sock(int family); |
824af85b | 828 | void pre_allocate_sfds(void); |
5aabfc78 SK |
829 | int reload_servers(char *fname); |
830 | void check_servers(void); | |
831 | int enumerate_interfaces(); | |
74c95c25 SK |
832 | void create_wildcard_listeners(void); |
833 | void create_bound_listeners(int die); | |
834 | int is_dad_listeners(void); | |
7622fc06 | 835 | int iface_check(int family, struct all_addr *addr, char *name, int *indexp); |
7cebd20f | 836 | int fix_fd(int fd); |
5aabfc78 | 837 | struct in_addr get_ifaddr(char *intr); |
3be34541 | 838 | |
9e4abcb5 | 839 | /* dhcp.c */ |
7622fc06 | 840 | #ifdef HAVE_DHCP |
5aabfc78 | 841 | void dhcp_init(void); |
316e2730 | 842 | void dhcp_packet(time_t now, int pxe_fd); |
824af85b SK |
843 | struct dhcp_context *address_available(struct dhcp_context *context, |
844 | struct in_addr addr, | |
845 | struct dhcp_netid *netids); | |
846 | struct dhcp_context *narrow_context(struct dhcp_context *context, | |
847 | struct in_addr taddr, | |
848 | struct dhcp_netid *netids); | |
8ef5ada2 SK |
849 | int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly); |
850 | int address_allocate(struct dhcp_context *context, | |
cdeda28f | 851 | struct in_addr *addrp, unsigned char *hwaddr, int hw_len, |
3d8df260 | 852 | struct dhcp_netid *netids, time_t now); |
8ef5ada2 | 853 | struct dhcp_netid *run_tag_if(struct dhcp_netid *input); |
9009d746 | 854 | int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type); |
9e4abcb5 SK |
855 | struct dhcp_config *find_config(struct dhcp_config *configs, |
856 | struct dhcp_context *context, | |
857 | unsigned char *clid, int clid_len, | |
cdeda28f SK |
858 | unsigned char *hwaddr, int hw_len, |
859 | int hw_type, char *hostname); | |
44a2a316 | 860 | void dhcp_update_configs(struct dhcp_config *configs); |
5aabfc78 | 861 | void dhcp_read_ethers(void); |
824af85b | 862 | void check_dhcp_hosts(int fatal); |
dfa666f2 | 863 | struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr); |
5aabfc78 SK |
864 | char *strip_hostname(char *hostname); |
865 | char *host_from_dns(struct in_addr addr); | |
9009d746 | 866 | char *get_domain(struct in_addr addr); |
7622fc06 | 867 | #endif |
3be34541 | 868 | |
9e4abcb5 | 869 | /* lease.c */ |
7622fc06 | 870 | #ifdef HAVE_DHCP |
5aabfc78 SK |
871 | void lease_update_file(time_t now); |
872 | void lease_update_dns(); | |
873 | void lease_init(time_t now); | |
7cebd20f SK |
874 | struct dhcp_lease *lease_allocate(struct in_addr addr); |
875 | void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr, | |
cdeda28f | 876 | unsigned char *clid, int hw_len, int hw_type, int clid_len); |
9009d746 | 877 | void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth); |
5e9e0efb | 878 | void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now); |
824af85b | 879 | void lease_set_interface(struct dhcp_lease *lease, int interface); |
cdeda28f | 880 | struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type, |
0a852541 | 881 | unsigned char *clid, int clid_len); |
9e4abcb5 | 882 | struct dhcp_lease *lease_find_by_addr(struct in_addr addr); |
7de060b0 | 883 | struct in_addr lease_find_max_addr(struct dhcp_context *context); |
9e4abcb5 | 884 | void lease_prune(struct dhcp_lease *target, time_t now); |
5aabfc78 SK |
885 | void lease_update_from_configs(void); |
886 | int do_script_run(time_t now); | |
887 | void rerun_scripts(void); | |
7622fc06 | 888 | #endif |
a84fa1d0 | 889 | |
9e4abcb5 | 890 | /* rfc2131.c */ |
7622fc06 | 891 | #ifdef HAVE_DHCP |
824af85b | 892 | size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index, |
7de060b0 | 893 | size_t sz, time_t now, int unicast_dest, int *is_inform, int pxe_fd, struct in_addr fallback); |
9009d746 SK |
894 | unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr, |
895 | int clid_len, unsigned char *clid, int *len_out); | |
7622fc06 | 896 | #endif |
3be34541 SK |
897 | |
898 | /* dnsmasq.c */ | |
7622fc06 | 899 | #ifdef HAVE_DHCP |
5e9e0efb | 900 | int make_icmp_sock(void); |
5aabfc78 | 901 | int icmp_ping(struct in_addr addr); |
7622fc06 | 902 | #endif |
5aabfc78 SK |
903 | void send_event(int fd, int event, int data); |
904 | void clear_cache_and_reload(time_t now); | |
8ef5ada2 | 905 | void poll_resolv(int force, int do_reload, time_t now); |
44a2a316 | 906 | |
0a852541 | 907 | /* netlink.c */ |
5e9e0efb | 908 | #ifdef HAVE_LINUX_NETWORK |
5aabfc78 | 909 | void netlink_init(void); |
5aabfc78 | 910 | void netlink_multicast(void); |
5e9e0efb SK |
911 | #endif |
912 | ||
913 | /* bpf.c */ | |
824af85b | 914 | #ifdef HAVE_BSD_NETWORK |
5aabfc78 SK |
915 | void init_bpf(void); |
916 | void send_via_bpf(struct dhcp_packet *mess, size_t len, | |
5e9e0efb | 917 | struct in_addr iface_addr, struct ifreq *ifr); |
0a852541 | 918 | #endif |
3d8df260 | 919 | |
824af85b | 920 | /* bpf.c or netlink.c */ |
28866e95 | 921 | int iface_enumerate(int family, void *parm, int (callback)()); |
824af85b | 922 | |
3d8df260 SK |
923 | /* dbus.c */ |
924 | #ifdef HAVE_DBUS | |
5aabfc78 SK |
925 | char *dbus_init(void); |
926 | void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset); | |
927 | void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset); | |
316e2730 | 928 | # ifdef HAVE_DHCP |
1f15b81d | 929 | void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname); |
316e2730 | 930 | # endif |
3d8df260 | 931 | #endif |
1697269c SK |
932 | |
933 | /* helper.c */ | |
7622fc06 | 934 | #if defined(HAVE_DHCP) && !defined(NO_FORK) |
1a6bca81 | 935 | int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd); |
5aabfc78 SK |
936 | void helper_write(void); |
937 | void queue_script(int action, struct dhcp_lease *lease, | |
938 | char *hostname, time_t now); | |
1697269c | 939 | int helper_buf_empty(void); |
5aabfc78 | 940 | #endif |
832af0ba SK |
941 | |
942 | /* tftp.c */ | |
943 | #ifdef HAVE_TFTP | |
5aabfc78 SK |
944 | void tftp_request(struct listener *listen, time_t now); |
945 | void check_tftp_listeners(fd_set *rset, time_t now); | |
832af0ba | 946 | #endif |
7de060b0 SK |
947 | |
948 | /* conntrack.c */ | |
949 | #ifdef HAVE_CONNTRACK | |
950 | int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr, | |
951 | int istcp, unsigned int *markp); | |
952 | #endif |