Annotation of embedaddon/dnsmasq/src/dnsmasq.h, revision 1.1
1.1 ! misho 1: /* dnsmasq is Copyright (c) 2000-2013 Simon Kelley
! 2:
! 3: This program is free software; you can redistribute it and/or modify
! 4: it under the terms of the GNU General Public License as published by
! 5: the Free Software Foundation; version 2 dated June, 1991, or
! 6: (at your option) version 3 dated 29 June, 2007.
! 7:
! 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.
! 12:
! 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/>.
! 15: */
! 16:
! 17: #define COPYRIGHT "Copyright (c) 2000-2013 Simon Kelley"
! 18:
! 19: #ifndef NO_LARGEFILE
! 20: /* Ensure we can use files >2GB (log files may grow this big) */
! 21: # define _LARGEFILE_SOURCE 1
! 22: # define _FILE_OFFSET_BITS 64
! 23: #endif
! 24:
! 25: /* Get linux C library versions and define _GNU_SOURCE for kFreeBSD. */
! 26: #if defined(__linux__) || defined(__GLIBC__)
! 27: # ifndef __ANDROID__
! 28: # define _GNU_SOURCE
! 29: # endif
! 30: # include <features.h>
! 31: #endif
! 32:
! 33: /* Need these defined early */
! 34: #if defined(__sun) || defined(__sun__)
! 35: # define _XPG4_2
! 36: # define __EXTENSIONS__
! 37: #endif
! 38:
! 39: /* get these before config.h for IPv6 stuff... */
! 40: #include <sys/types.h>
! 41: #include <sys/socket.h>
! 42:
! 43: #ifdef __APPLE__
! 44: /* Define before netinet/in.h to select API. OSX Lion onwards. */
! 45: # define __APPLE_USE_RFC_3542
! 46: #endif
! 47: #include <netinet/in.h>
! 48:
! 49: /* Also needed before config.h. */
! 50: #include <getopt.h>
! 51:
! 52: #include "config.h"
! 53:
! 54: typedef unsigned char u8;
! 55: typedef unsigned short u16;
! 56: typedef unsigned int u32;
! 57: typedef unsigned long long u64;
! 58:
! 59: #include "dns-protocol.h"
! 60: #include "dhcp-protocol.h"
! 61: #ifdef HAVE_DHCP6
! 62: #include "dhcp6-protocol.h"
! 63: #include "radv-protocol.h"
! 64: #endif
! 65:
! 66: #define gettext_noop(S) (S)
! 67: #ifndef LOCALEDIR
! 68: # define _(S) (S)
! 69: #else
! 70: # include <libintl.h>
! 71: # include <locale.h>
! 72: # define _(S) gettext(S)
! 73: #endif
! 74:
! 75: #include <arpa/inet.h>
! 76: #include <sys/stat.h>
! 77: #include <sys/ioctl.h>
! 78: #if defined(HAVE_SOLARIS_NETWORK)
! 79: # include <sys/sockio.h>
! 80: #endif
! 81: #include <sys/select.h>
! 82: #include <sys/wait.h>
! 83: #include <sys/time.h>
! 84: #include <sys/un.h>
! 85: #include <limits.h>
! 86: #include <net/if.h>
! 87: #if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu)
! 88: /* Some solaris net/if./h omit this. */
! 89: # define ifr_mtu ifr_ifru.ifru_metric
! 90: #endif
! 91: #include <unistd.h>
! 92: #include <stdio.h>
! 93: #include <string.h>
! 94: #include <stdlib.h>
! 95: #include <fcntl.h>
! 96: #include <ctype.h>
! 97: #include <signal.h>
! 98: #include <stddef.h>
! 99: #include <time.h>
! 100: #include <errno.h>
! 101: #include <pwd.h>
! 102: #include <grp.h>
! 103: #include <stdarg.h>
! 104: #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__)
! 105: # include <netinet/if_ether.h>
! 106: #else
! 107: # include <net/ethernet.h>
! 108: #endif
! 109: #include <net/if_arp.h>
! 110: #include <netinet/in_systm.h>
! 111: #include <netinet/ip.h>
! 112: #include <netinet/ip_icmp.h>
! 113: #include <sys/uio.h>
! 114: #include <syslog.h>
! 115: #include <dirent.h>
! 116: #ifndef HAVE_LINUX_NETWORK
! 117: # include <net/if_dl.h>
! 118: #endif
! 119:
! 120: #if defined(HAVE_LINUX_NETWORK)
! 121: #include <linux/capability.h>
! 122: /* There doesn't seem to be a universally-available
! 123: userpace header for these. */
! 124: extern int capset(cap_user_header_t header, cap_user_data_t data);
! 125: extern int capget(cap_user_header_t header, cap_user_data_t data);
! 126: #define LINUX_CAPABILITY_VERSION_1 0x19980330
! 127: #define LINUX_CAPABILITY_VERSION_2 0x20071026
! 128: #define LINUX_CAPABILITY_VERSION_3 0x20080522
! 129:
! 130: #include <sys/prctl.h>
! 131: #elif defined(HAVE_SOLARIS_NETWORK)
! 132: #include <priv.h>
! 133: #endif
! 134:
! 135: /* daemon is function in the C library.... */
! 136: #define daemon dnsmasq_daemon
! 137:
! 138: /* Async event queue */
! 139: struct event_desc {
! 140: int event, data, msg_sz;
! 141: };
! 142:
! 143: #define EVENT_RELOAD 1
! 144: #define EVENT_DUMP 2
! 145: #define EVENT_ALARM 3
! 146: #define EVENT_TERM 4
! 147: #define EVENT_CHILD 5
! 148: #define EVENT_REOPEN 6
! 149: #define EVENT_EXITED 7
! 150: #define EVENT_KILLED 8
! 151: #define EVENT_EXEC_ERR 9
! 152: #define EVENT_PIPE_ERR 10
! 153: #define EVENT_USER_ERR 11
! 154: #define EVENT_CAP_ERR 12
! 155: #define EVENT_PIDFILE 13
! 156: #define EVENT_HUSER_ERR 14
! 157: #define EVENT_GROUP_ERR 15
! 158: #define EVENT_DIE 16
! 159: #define EVENT_LOG_ERR 17
! 160: #define EVENT_FORK_ERR 18
! 161: #define EVENT_LUA_ERR 19
! 162: #define EVENT_TFTP_ERR 20
! 163:
! 164: /* Exit codes. */
! 165: #define EC_GOOD 0
! 166: #define EC_BADCONF 1
! 167: #define EC_BADNET 2
! 168: #define EC_FILE 3
! 169: #define EC_NOMEM 4
! 170: #define EC_MISC 5
! 171: #define EC_INIT_OFFSET 10
! 172:
! 173: /* Min buffer size: we check after adding each record, so there must be
! 174: memory for the largest packet, and the largest record so the
! 175: min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000.
! 176: This might be increased is EDNS packet size if greater than the minimum.
! 177: */
! 178: #define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ
! 179:
! 180: /* Trust the compiler dead-code eliminator.... */
! 181: #define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32)))
! 182:
! 183: #define OPT_BOGUSPRIV 0
! 184: #define OPT_FILTER 1
! 185: #define OPT_LOG 2
! 186: #define OPT_SELFMX 3
! 187: #define OPT_NO_HOSTS 4
! 188: #define OPT_NO_POLL 5
! 189: #define OPT_DEBUG 6
! 190: #define OPT_ORDER 7
! 191: #define OPT_NO_RESOLV 8
! 192: #define OPT_EXPAND 9
! 193: #define OPT_LOCALMX 10
! 194: #define OPT_NO_NEG 11
! 195: #define OPT_NODOTS_LOCAL 12
! 196: #define OPT_NOWILD 13
! 197: #define OPT_ETHERS 14
! 198: #define OPT_RESOLV_DOMAIN 15
! 199: #define OPT_NO_FORK 16
! 200: #define OPT_AUTHORITATIVE 17
! 201: #define OPT_LOCALISE 18
! 202: #define OPT_DBUS 19
! 203: #define OPT_DHCP_FQDN 20
! 204: #define OPT_NO_PING 21
! 205: #define OPT_LEASE_RO 22
! 206: #define OPT_ALL_SERVERS 23
! 207: #define OPT_RELOAD 24
! 208: #define OPT_LOCAL_REBIND 25
! 209: #define OPT_TFTP_SECURE 26
! 210: #define OPT_TFTP_NOBLOCK 27
! 211: #define OPT_LOG_OPTS 28
! 212: #define OPT_TFTP_APREF 29
! 213: #define OPT_NO_OVERRIDE 30
! 214: #define OPT_NO_REBIND 31
! 215: #define OPT_ADD_MAC 32
! 216: #define OPT_DNSSEC 33
! 217: #define OPT_CONSEC_ADDR 34
! 218: #define OPT_CONNTRACK 35
! 219: #define OPT_FQDN_UPDATE 36
! 220: #define OPT_RA 37
! 221: #define OPT_TFTP_LC 38
! 222: #define OPT_CLEVERBIND 39
! 223: #define OPT_TFTP 40
! 224: #define OPT_LAST 41
! 225:
! 226: /* extra flags for my_syslog, we use a couple of facilities since they are known
! 227: not to occupy the same bits as priorities, no matter how syslog.h is set up. */
! 228: #define MS_TFTP LOG_USER
! 229: #define MS_DHCP LOG_DAEMON
! 230:
! 231: struct all_addr {
! 232: union {
! 233: struct in_addr addr4;
! 234: #ifdef HAVE_IPV6
! 235: struct in6_addr addr6;
! 236: #endif
! 237: } addr;
! 238: };
! 239:
! 240: struct bogus_addr {
! 241: struct in_addr addr;
! 242: struct bogus_addr *next;
! 243: };
! 244:
! 245: /* dns doctor param */
! 246: struct doctor {
! 247: struct in_addr in, end, out, mask;
! 248: struct doctor *next;
! 249: };
! 250:
! 251: struct mx_srv_record {
! 252: char *name, *target;
! 253: int issrv, srvport, priority, weight;
! 254: unsigned int offset;
! 255: struct mx_srv_record *next;
! 256: };
! 257:
! 258: struct naptr {
! 259: char *name, *replace, *regexp, *services, *flags;
! 260: unsigned int order, pref;
! 261: struct naptr *next;
! 262: };
! 263:
! 264: struct txt_record {
! 265: char *name;
! 266: unsigned char *txt;
! 267: unsigned short class, len;
! 268: struct txt_record *next;
! 269: };
! 270:
! 271: struct ptr_record {
! 272: char *name, *ptr;
! 273: struct ptr_record *next;
! 274: };
! 275:
! 276: struct cname {
! 277: char *alias, *target;
! 278: struct cname *next;
! 279: };
! 280:
! 281: struct auth_zone {
! 282: char *domain;
! 283: struct subnet {
! 284: int is6, prefixlen;
! 285: struct in_addr addr4;
! 286: #ifdef HAVE_IPV6
! 287: struct in6_addr addr6;
! 288: #endif
! 289: struct subnet *next;
! 290: } *subnet;
! 291: struct auth_zone *next;
! 292: };
! 293:
! 294:
! 295: struct host_record {
! 296: struct name_list {
! 297: char *name;
! 298: struct name_list *next;
! 299: } *names;
! 300: struct in_addr addr;
! 301: #ifdef HAVE_IPV6
! 302: struct in6_addr addr6;
! 303: #endif
! 304: struct host_record *next;
! 305: };
! 306:
! 307: struct interface_name {
! 308: char *name; /* domain name */
! 309: char *intr; /* interface name */
! 310: struct interface_name *next;
! 311: };
! 312:
! 313: union bigname {
! 314: char name[MAXDNAME];
! 315: union bigname *next; /* freelist */
! 316: };
! 317:
! 318: struct keydata {
! 319: struct keydata *next;
! 320: unsigned char key[KEYBLOCK_LEN];
! 321: };
! 322:
! 323: struct crec {
! 324: struct crec *next, *prev, *hash_next;
! 325: /* union is 16 bytes when doing IPv6, 8 bytes on 32 bit machines without IPv6 */
! 326: union {
! 327: struct all_addr addr;
! 328: struct {
! 329: struct crec *cache;
! 330: int uid;
! 331: } cname;
! 332: struct {
! 333: struct keydata *keydata;
! 334: unsigned char algo;
! 335: unsigned char digest; /* DS only */
! 336: unsigned short flags_or_keyid; /* flags for DNSKEY, keyid for DS */
! 337: } key;
! 338: } addr;
! 339: time_t ttd; /* time to die */
! 340: /* used as keylen if F_DS or F_DNSKEY, index to source for F_HOSTS */
! 341: int uid;
! 342: unsigned short flags;
! 343: union {
! 344: char sname[SMALLDNAME];
! 345: union bigname *bname;
! 346: char *namep;
! 347: } name;
! 348: };
! 349:
! 350: #define F_IMMORTAL (1u<<0)
! 351: #define F_NAMEP (1u<<1)
! 352: #define F_REVERSE (1u<<2)
! 353: #define F_FORWARD (1u<<3)
! 354: #define F_DHCP (1u<<4)
! 355: #define F_NEG (1u<<5)
! 356: #define F_HOSTS (1u<<6)
! 357: #define F_IPV4 (1u<<7)
! 358: #define F_IPV6 (1u<<8)
! 359: #define F_BIGNAME (1u<<9)
! 360: #define F_NXDOMAIN (1u<<10)
! 361: #define F_CNAME (1u<<11)
! 362: #define F_DNSKEY (1u<<12)
! 363: #define F_CONFIG (1u<<13)
! 364: #define F_DS (1u<<14)
! 365: #define F_DNSSECOK (1u<<15)
! 366:
! 367: /* below here are only valid as args to log_query: cache
! 368: entries are limited to 16 bits */
! 369: #define F_UPSTREAM (1u<<16)
! 370: #define F_RRNAME (1u<<17)
! 371: #define F_SERVER (1u<<18)
! 372: #define F_QUERY (1u<<19)
! 373: #define F_NOERR (1u<<20)
! 374: #define F_AUTH (1u<<21)
! 375:
! 376: /* composites */
! 377: #define F_TYPE (F_IPV4 | F_IPV6 | F_DNSKEY | F_DS) /* Only one may be set */
! 378:
! 379:
! 380:
! 381: /* struct sockaddr is not large enough to hold any address,
! 382: and specifically not big enough to hold an IPv6 address.
! 383: Blech. Roll our own. */
! 384: union mysockaddr {
! 385: struct sockaddr sa;
! 386: struct sockaddr_in in;
! 387: #if defined(HAVE_IPV6)
! 388: struct sockaddr_in6 in6;
! 389: #endif
! 390: };
! 391:
! 392: /* bits in flag param to IPv6 callbacks from iface_enumerate() */
! 393: #define IFACE_TENTATIVE 1
! 394: #define IFACE_DEPRECATED 2
! 395:
! 396:
! 397: #define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */
! 398: #define SERV_NO_ADDR 2 /* no server, this domain is local only */
! 399: #define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */
! 400: #define SERV_HAS_DOMAIN 8 /* server for one domain only */
! 401: #define SERV_HAS_SOURCE 16 /* source address defined */
! 402: #define SERV_FOR_NODOTS 32 /* server for names with no domain part only */
! 403: #define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */
! 404: #define SERV_FROM_DBUS 128 /* 1 if source is DBus */
! 405: #define SERV_MARK 256 /* for mark-and-delete */
! 406: #define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS)
! 407: #define SERV_COUNTED 512 /* workspace for log code */
! 408: #define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */
! 409: #define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */
! 410:
! 411: struct serverfd {
! 412: int fd;
! 413: union mysockaddr source_addr;
! 414: char interface[IF_NAMESIZE+1];
! 415: struct serverfd *next;
! 416: };
! 417:
! 418: struct randfd {
! 419: int fd;
! 420: unsigned short refcount, family;
! 421: };
! 422:
! 423: struct server {
! 424: union mysockaddr addr, source_addr;
! 425: char interface[IF_NAMESIZE+1];
! 426: struct serverfd *sfd;
! 427: char *domain; /* set if this server only handles a domain. */
! 428: int flags, tcpfd;
! 429: unsigned int queries, failed_queries;
! 430: struct server *next;
! 431: };
! 432:
! 433: struct ipsets {
! 434: char **sets;
! 435: char *domain;
! 436: struct ipsets *next;
! 437: };
! 438:
! 439: struct irec {
! 440: union mysockaddr addr;
! 441: struct in_addr netmask; /* only valid for IPv4 */
! 442: int tftp_ok, dhcp_ok, mtu, done, dad, dns_auth, index, multicast_done;
! 443: char *name;
! 444: struct irec *next;
! 445: };
! 446:
! 447: struct listener {
! 448: int fd, tcpfd, tftpfd, family;
! 449: struct irec *iface; /* only sometimes valid for non-wildcard */
! 450: struct listener *next;
! 451: };
! 452:
! 453: /* interface and address parms from command line. */
! 454: struct iname {
! 455: char *name;
! 456: union mysockaddr addr;
! 457: int used;
! 458: struct iname *next;
! 459: };
! 460:
! 461: /* resolv-file parms from command-line */
! 462: struct resolvc {
! 463: struct resolvc *next;
! 464: int is_default, logged;
! 465: time_t mtime;
! 466: char *name;
! 467: };
! 468:
! 469: /* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */
! 470: #define AH_DIR 1
! 471: #define AH_INACTIVE 2
! 472: struct hostsfile {
! 473: struct hostsfile *next;
! 474: int flags;
! 475: char *fname;
! 476: int index; /* matches to cache entries for logging */
! 477: };
! 478:
! 479: #define FREC_NOREBIND 1
! 480: #define FREC_CHECKING_DISABLED 2
! 481:
! 482: struct frec {
! 483: union mysockaddr source;
! 484: struct all_addr dest;
! 485: struct server *sentto; /* NULL means free */
! 486: struct randfd *rfd4;
! 487: #ifdef HAVE_IPV6
! 488: struct randfd *rfd6;
! 489: #endif
! 490: unsigned int iface;
! 491: unsigned short orig_id, new_id;
! 492: int fd, forwardall, flags;
! 493: unsigned int crc;
! 494: time_t time;
! 495: struct frec *next;
! 496: };
! 497:
! 498: /* flags in top of length field for DHCP-option tables */
! 499: #define OT_ADDR_LIST 0x8000
! 500: #define OT_RFC1035_NAME 0x4000
! 501: #define OT_INTERNAL 0x2000
! 502: #define OT_NAME 0x1000
! 503: #define OT_CSTRING 0x0800
! 504: #define OT_DEC 0x0400
! 505: #define OT_TIME 0x0200
! 506:
! 507: /* actions in the daemon->helper RPC */
! 508: #define ACTION_DEL 1
! 509: #define ACTION_OLD_HOSTNAME 2
! 510: #define ACTION_OLD 3
! 511: #define ACTION_ADD 4
! 512: #define ACTION_TFTP 5
! 513:
! 514: #define LEASE_NEW 1 /* newly created */
! 515: #define LEASE_CHANGED 2 /* modified */
! 516: #define LEASE_AUX_CHANGED 4 /* CLID or expiry changed */
! 517: #define LEASE_AUTH_NAME 8 /* hostname came from config, not from client */
! 518: #define LEASE_USED 16 /* used this DHCPv6 transaction */
! 519: #define LEASE_NA 32 /* IPv6 no-temporary lease */
! 520: #define LEASE_TA 64 /* IPv6 temporary lease */
! 521: #define LEASE_HAVE_HWADDR 128 /* Have set hwaddress */
! 522:
! 523: struct dhcp_lease {
! 524: int clid_len; /* length of client identifier */
! 525: unsigned char *clid; /* clientid */
! 526: char *hostname, *fqdn; /* name from client-hostname option or config */
! 527: char *old_hostname; /* hostname before it moved to another lease */
! 528: int flags;
! 529: time_t expires; /* lease expiry */
! 530: #ifdef HAVE_BROKEN_RTC
! 531: unsigned int length;
! 532: #endif
! 533: int hwaddr_len, hwaddr_type; /* hw_type used for iaid in v6 */
! 534: unsigned char hwaddr[DHCP_CHADDR_MAX]; /* also IPv6 address */
! 535: struct in_addr addr, override, giaddr;
! 536: unsigned char *extradata;
! 537: unsigned int extradata_len, extradata_size;
! 538: int last_interface;
! 539: #ifdef HAVE_DHCP6
! 540: struct slaac_address {
! 541: struct in6_addr addr, local;
! 542: time_t ping_time;
! 543: int backoff; /* zero -> confirmed */
! 544: struct slaac_address *next;
! 545: } *slaac_address;
! 546: int vendorclass_count;
! 547: #endif
! 548: struct dhcp_lease *next;
! 549: };
! 550:
! 551: struct dhcp_netid {
! 552: char *net;
! 553: struct dhcp_netid *next;
! 554: };
! 555:
! 556: struct dhcp_netid_list {
! 557: struct dhcp_netid *list;
! 558: struct dhcp_netid_list *next;
! 559: };
! 560:
! 561: struct tag_if {
! 562: struct dhcp_netid_list *set;
! 563: struct dhcp_netid *tag;
! 564: struct tag_if *next;
! 565: };
! 566:
! 567: struct hwaddr_config {
! 568: int hwaddr_len, hwaddr_type;
! 569: unsigned char hwaddr[DHCP_CHADDR_MAX];
! 570: unsigned int wildcard_mask;
! 571: struct hwaddr_config *next;
! 572: };
! 573:
! 574: struct dhcp_config {
! 575: unsigned int flags;
! 576: int clid_len; /* length of client identifier */
! 577: unsigned char *clid; /* clientid */
! 578: char *hostname, *domain;
! 579: struct dhcp_netid_list *netid;
! 580: #ifdef HAVE_DHCP6
! 581: struct in6_addr addr6;
! 582: #endif
! 583: struct in_addr addr;
! 584: time_t decline_time;
! 585: unsigned int lease_time;
! 586: struct hwaddr_config *hwaddr;
! 587: struct dhcp_config *next;
! 588: };
! 589:
! 590: #define have_config(config, mask) ((config) && ((config)->flags & (mask)))
! 591:
! 592: #define CONFIG_DISABLE 1
! 593: #define CONFIG_CLID 2
! 594: #define CONFIG_TIME 8
! 595: #define CONFIG_NAME 16
! 596: #define CONFIG_ADDR 32
! 597: #define CONFIG_NOCLID 128
! 598: #define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */
! 599: #define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */
! 600: #define CONFIG_DECLINED 1024 /* address declined by client */
! 601: #define CONFIG_BANK 2048 /* from dhcp hosts file */
! 602: #define CONFIG_ADDR6 4096
! 603: #define CONFIG_WILDCARD 8192
! 604:
! 605: struct dhcp_opt {
! 606: int opt, len, flags;
! 607: union {
! 608: int encap;
! 609: unsigned int wildcard_mask;
! 610: unsigned char *vendor_class;
! 611: } u;
! 612: unsigned char *val;
! 613: struct dhcp_netid *netid;
! 614: struct dhcp_opt *next;
! 615: };
! 616:
! 617: #define DHOPT_ADDR 1
! 618: #define DHOPT_STRING 2
! 619: #define DHOPT_ENCAPSULATE 4
! 620: #define DHOPT_ENCAP_MATCH 8
! 621: #define DHOPT_FORCE 16
! 622: #define DHOPT_BANK 32
! 623: #define DHOPT_ENCAP_DONE 64
! 624: #define DHOPT_MATCH 128
! 625: #define DHOPT_VENDOR 256
! 626: #define DHOPT_HEX 512
! 627: #define DHOPT_VENDOR_MATCH 1024
! 628: #define DHOPT_RFC3925 2048
! 629: #define DHOPT_TAGOK 4096
! 630: #define DHOPT_ADDR6 8192
! 631:
! 632: struct dhcp_boot {
! 633: char *file, *sname, *tftp_sname;
! 634: struct in_addr next_server;
! 635: struct dhcp_netid *netid;
! 636: struct dhcp_boot *next;
! 637: };
! 638:
! 639: struct pxe_service {
! 640: unsigned short CSA, type;
! 641: char *menu, *basename, *sname;
! 642: struct in_addr server;
! 643: struct dhcp_netid *netid;
! 644: struct pxe_service *next;
! 645: };
! 646:
! 647: #define MATCH_VENDOR 1
! 648: #define MATCH_USER 2
! 649: #define MATCH_CIRCUIT 3
! 650: #define MATCH_REMOTE 4
! 651: #define MATCH_SUBSCRIBER 5
! 652:
! 653: /* vendorclass, userclass, remote-id or cicuit-id */
! 654: struct dhcp_vendor {
! 655: int len, match_type;
! 656: unsigned int enterprise;
! 657: char *data;
! 658: struct dhcp_netid netid;
! 659: struct dhcp_vendor *next;
! 660: };
! 661:
! 662: struct dhcp_mac {
! 663: unsigned int mask;
! 664: int hwaddr_len, hwaddr_type;
! 665: unsigned char hwaddr[DHCP_CHADDR_MAX];
! 666: struct dhcp_netid netid;
! 667: struct dhcp_mac *next;
! 668: };
! 669:
! 670: struct dhcp_bridge {
! 671: char iface[IF_NAMESIZE];
! 672: struct dhcp_bridge *alias, *next;
! 673: };
! 674:
! 675: struct cond_domain {
! 676: char *domain;
! 677: struct in_addr start, end;
! 678: #ifdef HAVE_IPV6
! 679: struct in6_addr start6, end6;
! 680: #endif
! 681: int is6;
! 682: struct cond_domain *next;
! 683: };
! 684:
! 685: #ifdef OPTION6_PREFIX_CLASS
! 686: struct prefix_class {
! 687: int class;
! 688: struct dhcp_netid tag;
! 689: struct prefix_class *next;
! 690: };
! 691: #endif
! 692:
! 693: struct dhcp_context {
! 694: unsigned int lease_time, addr_epoch;
! 695: struct in_addr netmask, broadcast;
! 696: struct in_addr local, router;
! 697: struct in_addr start, end; /* range of available addresses */
! 698: #ifdef HAVE_DHCP6
! 699: struct in6_addr start6, end6; /* range of available addresses */
! 700: struct in6_addr local6;
! 701: int prefix, if_index;
! 702: unsigned int valid, preferred;
! 703: time_t ra_time, ra_short_period_start;
! 704: char *template_interface;
! 705: #endif
! 706: int flags;
! 707: struct dhcp_netid netid, *filter;
! 708: struct dhcp_context *next, *current;
! 709: };
! 710:
! 711: #define CONTEXT_STATIC 1
! 712: #define CONTEXT_NETMASK 2
! 713: #define CONTEXT_BRDCAST 4
! 714: #define CONTEXT_PROXY 8
! 715: #define CONTEXT_RA_ONLY 16
! 716: #define CONTEXT_RA_DONE 32
! 717: #define CONTEXT_RA_NAME 64
! 718: #define CONTEXT_RA_STATELESS 128
! 719: #define CONTEXT_DHCP 256
! 720: #define CONTEXT_DEPRECATE 512
! 721: #define CONTEXT_TEMPLATE 1024 /* create contexts using addresses */
! 722: #define CONTEXT_CONSTRUCTED 2048
! 723: #define CONTEXT_GC 4096
! 724: #define CONTEXT_RA 8192
! 725: #define CONTEXT_CONF_USED 16384
! 726: #define CONTEXT_USED 32768
! 727:
! 728: struct ping_result {
! 729: struct in_addr addr;
! 730: time_t time;
! 731: unsigned int hash;
! 732: struct ping_result *next;
! 733: };
! 734:
! 735: struct tftp_file {
! 736: int refcount, fd;
! 737: off_t size;
! 738: dev_t dev;
! 739: ino_t inode;
! 740: char filename[];
! 741: };
! 742:
! 743: struct tftp_transfer {
! 744: int sockfd;
! 745: time_t timeout;
! 746: int backoff;
! 747: unsigned int block, blocksize, expansion;
! 748: off_t offset;
! 749: union mysockaddr peer;
! 750: char opt_blocksize, opt_transize, netascii, carrylf;
! 751: struct tftp_file *file;
! 752: struct tftp_transfer *next;
! 753: };
! 754:
! 755: struct addr_list {
! 756: struct in_addr addr;
! 757: struct addr_list *next;
! 758: };
! 759:
! 760: struct tftp_prefix {
! 761: char *interface;
! 762: char *prefix;
! 763: struct tftp_prefix *next;
! 764: };
! 765:
! 766:
! 767: extern struct daemon {
! 768: /* datastuctures representing the command-line and
! 769: config file arguments. All set (including defaults)
! 770: in option.c */
! 771:
! 772: unsigned int options, options2;
! 773: struct resolvc default_resolv, *resolv_files;
! 774: time_t last_resolv;
! 775: struct mx_srv_record *mxnames;
! 776: struct naptr *naptr;
! 777: struct txt_record *txt, *rr;
! 778: struct ptr_record *ptr;
! 779: struct host_record *host_records, *host_records_tail;
! 780: struct cname *cnames;
! 781: struct auth_zone *auth_zones;
! 782: struct interface_name *int_names;
! 783: char *mxtarget;
! 784: char *lease_file;
! 785: char *username, *groupname, *scriptuser;
! 786: char *luascript;
! 787: char *authserver, *hostmaster;
! 788: struct iname *authinterface;
! 789: struct name_list *secondary_forward_server;
! 790: int group_set, osport;
! 791: char *domain_suffix;
! 792: struct cond_domain *cond_domain;
! 793: char *runfile;
! 794: char *lease_change_command;
! 795: struct iname *if_names, *if_addrs, *if_except, *dhcp_except, *auth_peers;
! 796: struct bogus_addr *bogus_addr;
! 797: struct server *servers;
! 798: struct ipsets *ipsets;
! 799: int log_fac; /* log facility */
! 800: char *log_file; /* optional log file */
! 801: int max_logs; /* queue limit */
! 802: int cachesize, ftabsize;
! 803: int port, query_port, min_port;
! 804: unsigned long local_ttl, neg_ttl, max_ttl, max_cache_ttl, auth_ttl;
! 805: struct hostsfile *addn_hosts;
! 806: struct dhcp_context *dhcp, *dhcp6;
! 807: struct dhcp_config *dhcp_conf;
! 808: struct dhcp_opt *dhcp_opts, *dhcp_match, *dhcp_opts6, *dhcp_match6;
! 809: struct dhcp_vendor *dhcp_vendors;
! 810: struct dhcp_mac *dhcp_macs;
! 811: struct dhcp_boot *boot_config;
! 812: struct pxe_service *pxe_services;
! 813: struct tag_if *tag_if;
! 814: struct addr_list *override_relays;
! 815: int override;
! 816: int enable_pxe;
! 817: int doing_ra, doing_dhcp6;
! 818: struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names;
! 819: struct dhcp_netid_list *force_broadcast, *bootp_dynamic;
! 820: struct hostsfile *dhcp_hosts_file, *dhcp_opts_file;
! 821: int dhcp_max, tftp_max;
! 822: int dhcp_server_port, dhcp_client_port;
! 823: int start_tftp_port, end_tftp_port;
! 824: unsigned int min_leasetime;
! 825: struct doctor *doctors;
! 826: unsigned short edns_pktsz;
! 827: char *tftp_prefix;
! 828: struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */
! 829: unsigned int duid_enterprise, duid_config_len;
! 830: unsigned char *duid_config;
! 831: char *dbus_name;
! 832: unsigned long soa_sn, soa_refresh, soa_retry, soa_expiry;
! 833: #ifdef OPTION6_PREFIX_CLASS
! 834: struct prefix_class *prefix_classes;
! 835: #endif
! 836:
! 837: /* globally used stuff for DNS */
! 838: char *packet; /* packet buffer */
! 839: int packet_buff_sz; /* size of above */
! 840: char *namebuff; /* MAXDNAME size buffer */
! 841: unsigned int local_answer, queries_forwarded;
! 842: struct frec *frec_list;
! 843: struct serverfd *sfds;
! 844: struct irec *interfaces;
! 845: struct listener *listeners;
! 846: struct server *last_server;
! 847: time_t forwardtime;
! 848: int forwardcount;
! 849: struct server *srv_save; /* Used for resend on DoD */
! 850: size_t packet_len; /* " " */
! 851: struct randfd *rfd_save; /* " " */
! 852: pid_t tcp_pids[MAX_PROCS];
! 853: struct randfd randomsocks[RANDOM_SOCKS];
! 854: int v6pktinfo;
! 855:
! 856: /* DHCP state */
! 857: int dhcpfd, helperfd, pxefd;
! 858: #if defined(HAVE_LINUX_NETWORK)
! 859: int netlinkfd;
! 860: #elif defined(HAVE_BSD_NETWORK)
! 861: int dhcp_raw_fd, dhcp_icmp_fd;
! 862: #endif
! 863: struct iovec dhcp_packet;
! 864: char *dhcp_buff, *dhcp_buff2, *dhcp_buff3;
! 865: struct ping_result *ping_results;
! 866: FILE *lease_stream;
! 867: struct dhcp_bridge *bridges;
! 868: #ifdef HAVE_DHCP6
! 869: int duid_len;
! 870: unsigned char *duid;
! 871: struct iovec outpacket;
! 872: int dhcp6fd, icmp6fd;
! 873: #endif
! 874: /* DBus stuff */
! 875: /* void * here to avoid depending on dbus headers outside dbus.c */
! 876: void *dbus;
! 877: #ifdef HAVE_DBUS
! 878: struct watch *watches;
! 879: #endif
! 880:
! 881: /* TFTP stuff */
! 882: struct tftp_transfer *tftp_trans, *tftp_done_trans;
! 883:
! 884: /* utility string buffer, hold max sized IP address as string */
! 885: char *addrbuff;
! 886:
! 887: } *daemon;
! 888:
! 889: /* cache.c */
! 890: void cache_init(void);
! 891: void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg);
! 892: char *record_source(int index);
! 893: void querystr(char *desc, char *str, unsigned short type);
! 894: struct crec *cache_find_by_addr(struct crec *crecp,
! 895: struct all_addr *addr, time_t now,
! 896: unsigned short prot);
! 897: struct crec *cache_find_by_name(struct crec *crecp,
! 898: char *name, time_t now, unsigned short prot);
! 899: void cache_end_insert(void);
! 900: void cache_start_insert(void);
! 901: struct crec *cache_insert(char *name, struct all_addr *addr,
! 902: time_t now, unsigned long ttl, unsigned short flags);
! 903: void cache_reload(void);
! 904: void cache_add_dhcp_entry(char *host_name, int prot, struct all_addr *host_address, time_t ttd);
! 905: struct in_addr a_record_from_hosts(char *name, time_t now);
! 906: void cache_unhash_dhcp(void);
! 907: void dump_cache(time_t now);
! 908: char *cache_get_name(struct crec *crecp);
! 909: struct crec *cache_enumerate(int init);
! 910: char *get_domain(struct in_addr addr);
! 911: #ifdef HAVE_IPV6
! 912: char *get_domain6(struct in6_addr *addr);
! 913: #endif
! 914: #ifdef HAVE_DNSSEC
! 915: struct keydata *keydata_alloc(char *data, size_t len);
! 916: void keydata_free(struct keydata *blocks);
! 917: #endif
! 918:
! 919: /* rfc1035.c */
! 920: unsigned int extract_request(struct dns_header *header, size_t qlen,
! 921: char *name, unsigned short *typep);
! 922: size_t setup_reply(struct dns_header *header, size_t qlen,
! 923: struct all_addr *addrp, unsigned int flags,
! 924: unsigned long local_ttl);
! 925: int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff,
! 926: time_t now, char **ipsets, int is_sign, int checkrebind,
! 927: int checking_disabled);
! 928: size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
! 929: struct in_addr local_addr, struct in_addr local_netmask, time_t now);
! 930: int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name,
! 931: struct bogus_addr *addr, time_t now);
! 932: unsigned char *find_pseudoheader(struct dns_header *header, size_t plen,
! 933: size_t *len, unsigned char **p, int *is_sign);
! 934: int check_for_local_domain(char *name, time_t now);
! 935: unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff);
! 936: size_t resize_packet(struct dns_header *header, size_t plen,
! 937: unsigned char *pheader, size_t hlen);
! 938: size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3);
! 939: int add_resource_record(struct dns_header *header, char *limit, int *truncp,
! 940: int nameoffset, unsigned char **pp, unsigned long ttl,
! 941: int *offset, unsigned short type, unsigned short class, char *format, ...);
! 942: unsigned char *skip_questions(struct dns_header *header, size_t plen);
! 943: int extract_name(struct dns_header *header, size_t plen, unsigned char **pp,
! 944: char *name, int isExtract, int extrabytes);
! 945: int in_arpa_name_2_addr(char *namein, struct all_addr *addrp);
! 946:
! 947: /* auth.c */
! 948: #ifdef HAVE_AUTH
! 949: size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t now, union mysockaddr *peer_addr);
! 950: #endif
! 951:
! 952: /* util.c */
! 953: void rand_init(void);
! 954: unsigned short rand16(void);
! 955: int legal_hostname(char *c);
! 956: char *canonicalise(char *s, int *nomem);
! 957: unsigned char *do_rfc1035_name(unsigned char *p, char *sval);
! 958: void *safe_malloc(size_t size);
! 959: void safe_pipe(int *fd, int read_noblock);
! 960: void *whine_malloc(size_t size);
! 961: int sa_len(union mysockaddr *addr);
! 962: int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2);
! 963: int hostname_isequal(const char *a, const char *b);
! 964: time_t dnsmasq_time(void);
! 965: int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask);
! 966: #ifdef HAVE_IPV6
! 967: int is_same_net6(struct in6_addr *a, struct in6_addr *b, int prefixlen);
! 968: u64 addr6part(struct in6_addr *addr);
! 969: void setaddr6part(struct in6_addr *addr, u64 host);
! 970: #endif
! 971: int retry_send(void);
! 972: void prettyprint_time(char *buf, unsigned int t);
! 973: int prettyprint_addr(union mysockaddr *addr, char *buf);
! 974: int parse_hex(char *in, unsigned char *out, int maxlen,
! 975: unsigned int *wildcard_mask, int *mac_type);
! 976: int memcmp_masked(unsigned char *a, unsigned char *b, int len,
! 977: unsigned int mask);
! 978: int expand_buf(struct iovec *iov, size_t size);
! 979: char *print_mac(char *buff, unsigned char *mac, int len);
! 980: void bump_maxfd(int fd, int *max);
! 981: int read_write(int fd, unsigned char *packet, int size, int rw);
! 982:
! 983: int wildcard_match(const char* wildcard, const char* match);
! 984:
! 985: /* log.c */
! 986: void die(char *message, char *arg1, int exit_code);
! 987: int log_start(struct passwd *ent_pw, int errfd);
! 988: int log_reopen(char *log_file);
! 989: void my_syslog(int priority, const char *format, ...);
! 990: void set_log_writer(fd_set *set, int *maxfdp);
! 991: void check_log_writer(fd_set *set);
! 992: void flush_log(void);
! 993:
! 994: /* option.c */
! 995: void read_opts (int argc, char **argv, char *compile_opts);
! 996: char *option_string(int prot, unsigned int opt, unsigned char *val,
! 997: int opt_len, char *buf, int buf_len);
! 998: void reread_dhcp(void);
! 999: void set_option_bool(unsigned int opt);
! 1000: void reset_option_bool(unsigned int opt);
! 1001: struct hostsfile *expand_filelist(struct hostsfile *list);
! 1002: char *parse_server(char *arg, union mysockaddr *addr,
! 1003: union mysockaddr *source_addr, char *interface, int *flags);
! 1004:
! 1005: /* forward.c */
! 1006: void reply_query(int fd, int family, time_t now);
! 1007: void receive_query(struct listener *listen, time_t now);
! 1008: unsigned char *tcp_request(int confd, time_t now,
! 1009: union mysockaddr *local_addr, struct in_addr netmask, int auth_dns);
! 1010: void server_gone(struct server *server);
! 1011: struct frec *get_new_frec(time_t now, int *wait);
! 1012: int send_from(int fd, int nowild, char *packet, size_t len,
! 1013: union mysockaddr *to, struct all_addr *source,
! 1014: unsigned int iface);
! 1015:
! 1016: /* network.c */
! 1017: int indextoname(int fd, int index, char *name);
! 1018: int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp);
! 1019: int random_sock(int family);
! 1020: void pre_allocate_sfds(void);
! 1021: int reload_servers(char *fname);
! 1022: void check_servers(void);
! 1023: int enumerate_interfaces();
! 1024: void create_wildcard_listeners(void);
! 1025: void create_bound_listeners(int die);
! 1026: int is_dad_listeners(void);
! 1027: int iface_check(int family, struct all_addr *addr, char *name, int *auth_dns);
! 1028: int loopback_exception(int fd, int family, struct all_addr *addr, char *name);
! 1029: int fix_fd(int fd);
! 1030: int tcp_interface(int fd, int af);
! 1031: struct in_addr get_ifaddr(char *intr);
! 1032: #ifdef HAVE_IPV6
! 1033: int set_ipv6pktinfo(int fd);
! 1034: #endif
! 1035: #ifdef HAVE_DHCP6
! 1036: void join_multicast(int dienow);
! 1037: #endif
! 1038:
! 1039: /* dhcp.c */
! 1040: #ifdef HAVE_DHCP
! 1041: void dhcp_init(void);
! 1042: void dhcp_packet(time_t now, int pxe_fd);
! 1043: struct dhcp_context *address_available(struct dhcp_context *context,
! 1044: struct in_addr addr,
! 1045: struct dhcp_netid *netids);
! 1046: struct dhcp_context *narrow_context(struct dhcp_context *context,
! 1047: struct in_addr taddr,
! 1048: struct dhcp_netid *netids);
! 1049: int address_allocate(struct dhcp_context *context,
! 1050: struct in_addr *addrp, unsigned char *hwaddr, int hw_len,
! 1051: struct dhcp_netid *netids, time_t now);
! 1052: int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type);
! 1053: struct dhcp_config *find_config(struct dhcp_config *configs,
! 1054: struct dhcp_context *context,
! 1055: unsigned char *clid, int clid_len,
! 1056: unsigned char *hwaddr, int hw_len,
! 1057: int hw_type, char *hostname);
! 1058: void dhcp_read_ethers(void);
! 1059: struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr);
! 1060: char *host_from_dns(struct in_addr addr);
! 1061: #endif
! 1062:
! 1063: /* lease.c */
! 1064: #ifdef HAVE_DHCP
! 1065: void lease_update_file(time_t now);
! 1066: void lease_update_dns(int force);
! 1067: void lease_init(time_t now);
! 1068: struct dhcp_lease *lease4_allocate(struct in_addr addr);
! 1069: #ifdef HAVE_DHCP6
! 1070: struct dhcp_lease *lease6_allocate(struct in6_addr *addrp, int lease_type);
! 1071: struct dhcp_lease *lease6_find(unsigned char *clid, int clid_len,
! 1072: int lease_type, int iaid, struct in6_addr *addr);
! 1073: void lease6_reset(void);
! 1074: struct dhcp_lease *lease6_find_by_client(struct dhcp_lease *first, int lease_type, unsigned char *clid, int clid_len, int iaid);
! 1075: struct dhcp_lease *lease6_find_by_addr(struct in6_addr *net, int prefix, u64 addr);
! 1076: u64 lease_find_max_addr6(struct dhcp_context *context);
! 1077: void lease_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface);
! 1078: void lease_update_slaac(time_t now);
! 1079: #endif
! 1080: void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
! 1081: unsigned char *clid, int hw_len, int hw_type, int clid_len, time_t now, int force);
! 1082: void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth, char *domain, char *config_domain);
! 1083: void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now);
! 1084: void lease_set_interface(struct dhcp_lease *lease, int interface, time_t now);
! 1085: struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type,
! 1086: unsigned char *clid, int clid_len);
! 1087: struct dhcp_lease *lease_find_by_addr(struct in_addr addr);
! 1088: struct in_addr lease_find_max_addr(struct dhcp_context *context);
! 1089: void lease_prune(struct dhcp_lease *target, time_t now);
! 1090: void lease_update_from_configs(void);
! 1091: int do_script_run(time_t now);
! 1092: void rerun_scripts(void);
! 1093: void lease_find_interfaces(time_t now);
! 1094: #ifdef HAVE_SCRIPT
! 1095: void lease_add_extradata(struct dhcp_lease *lease, unsigned char *data,
! 1096: unsigned int len, int delim);
! 1097: #endif
! 1098: #endif
! 1099:
! 1100: /* rfc2131.c */
! 1101: #ifdef HAVE_DHCP
! 1102: size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
! 1103: size_t sz, time_t now, int unicast_dest, int *is_inform, int pxe_fd, struct in_addr fallback);
! 1104: unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr,
! 1105: int clid_len, unsigned char *clid, int *len_out);
! 1106: #endif
! 1107:
! 1108: /* dnsmasq.c */
! 1109: #ifdef HAVE_DHCP
! 1110: int make_icmp_sock(void);
! 1111: int icmp_ping(struct in_addr addr);
! 1112: #endif
! 1113: void send_alarm(time_t event, time_t now);
! 1114: void send_event(int fd, int event, int data, char *msg);
! 1115: void clear_cache_and_reload(time_t now);
! 1116: void poll_resolv(int force, int do_reload, time_t now);
! 1117:
! 1118: /* netlink.c */
! 1119: #ifdef HAVE_LINUX_NETWORK
! 1120: void netlink_init(void);
! 1121: void netlink_multicast(time_t now);
! 1122: #endif
! 1123:
! 1124: /* bpf.c */
! 1125: #ifdef HAVE_BSD_NETWORK
! 1126: void init_bpf(void);
! 1127: void send_via_bpf(struct dhcp_packet *mess, size_t len,
! 1128: struct in_addr iface_addr, struct ifreq *ifr);
! 1129: #endif
! 1130:
! 1131: /* bpf.c or netlink.c */
! 1132: int iface_enumerate(int family, void *parm, int (callback)());
! 1133:
! 1134: /* dbus.c */
! 1135: #ifdef HAVE_DBUS
! 1136: char *dbus_init(void);
! 1137: void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset);
! 1138: void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset);
! 1139: # ifdef HAVE_DHCP
! 1140: void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname);
! 1141: # endif
! 1142: #endif
! 1143:
! 1144: /* ipset.c */
! 1145: #ifdef HAVE_IPSET
! 1146: void ipset_init(void);
! 1147: int add_to_ipset(const char *setname, const struct all_addr *ipaddr, int flags, int remove);
! 1148: #endif
! 1149:
! 1150: /* helper.c */
! 1151: #if defined(HAVE_SCRIPT)
! 1152: int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd);
! 1153: void helper_write(void);
! 1154: void queue_script(int action, struct dhcp_lease *lease,
! 1155: char *hostname, time_t now);
! 1156: #ifdef HAVE_TFTP
! 1157: void queue_tftp(off_t file_len, char *filename, union mysockaddr *peer);
! 1158: #endif
! 1159: int helper_buf_empty(void);
! 1160: #endif
! 1161:
! 1162: /* tftp.c */
! 1163: #ifdef HAVE_TFTP
! 1164: void tftp_request(struct listener *listen, time_t now);
! 1165: void check_tftp_listeners(fd_set *rset, time_t now);
! 1166: int do_tftp_script_run(void);
! 1167: #endif
! 1168:
! 1169: /* conntrack.c */
! 1170: #ifdef HAVE_CONNTRACK
! 1171: int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr,
! 1172: int istcp, unsigned int *markp);
! 1173: #endif
! 1174:
! 1175: /* dhcp6.c */
! 1176: #ifdef HAVE_DHCP6
! 1177: void dhcp6_init(void);
! 1178: void dhcp6_packet(time_t now);
! 1179: struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len,
! 1180: int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans);
! 1181: int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr);
! 1182: struct dhcp_context *address6_available(struct dhcp_context *context,
! 1183: struct in6_addr *taddr,
! 1184: struct dhcp_netid *netids,
! 1185: int plain_range);
! 1186: struct dhcp_context *address6_valid(struct dhcp_context *context,
! 1187: struct in6_addr *taddr,
! 1188: struct dhcp_netid *netids,
! 1189: int plain_range);
! 1190: struct dhcp_config *find_config6(struct dhcp_config *configs,
! 1191: struct dhcp_context *context,
! 1192: unsigned char *duid, int duid_len,
! 1193: char *hostname);
! 1194: struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net,
! 1195: int prefix, u64 addr);
! 1196: void make_duid(time_t now);
! 1197: void dhcp_construct_contexts(time_t now);
! 1198: #endif
! 1199:
! 1200: /* rfc3315.c */
! 1201: #ifdef HAVE_DHCP6
! 1202: unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name,
! 1203: struct in6_addr *fallback, size_t sz, int is_multicast, time_t now);
! 1204: #endif
! 1205:
! 1206: /* dhcp-common.c */
! 1207: #ifdef HAVE_DHCP
! 1208: void dhcp_common_init(void);
! 1209: ssize_t recv_dhcp_packet(int fd, struct msghdr *msg);
! 1210: struct dhcp_netid *run_tag_if(struct dhcp_netid *input);
! 1211: struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *context_tags,
! 1212: struct dhcp_opt *opts);
! 1213: int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly);
! 1214: char *strip_hostname(char *hostname);
! 1215: void log_tags(struct dhcp_netid *netid, u32 xid);
! 1216: int match_bytes(struct dhcp_opt *o, unsigned char *p, int len);
! 1217: void dhcp_update_configs(struct dhcp_config *configs);
! 1218: void display_opts(void);
! 1219: u16 lookup_dhcp_opt(int prot, char *name);
! 1220: u16 lookup_dhcp_len(int prot, u16 val);
! 1221: char *option_string(int prot, unsigned int opt, unsigned char *val,
! 1222: int opt_len, char *buf, int buf_len);
! 1223: #ifdef HAVE_LINUX_NETWORK
! 1224: void bindtodevice(int fd);
! 1225: #endif
! 1226: # ifdef HAVE_DHCP6
! 1227: void display_opts6(void);
! 1228: # endif
! 1229: void log_context(int family, struct dhcp_context *context);
! 1230: #endif
! 1231:
! 1232: /* outpacket.c */
! 1233: #ifdef HAVE_DHCP6
! 1234: void end_opt6(int container);
! 1235: int save_counter(int newval);
! 1236: void *expand(size_t headroom);
! 1237: int new_opt6(int opt);
! 1238: void *put_opt6(void *data, size_t len);
! 1239: void put_opt6_long(unsigned int val);
! 1240: void put_opt6_short(unsigned int val);
! 1241: void put_opt6_char(unsigned int val);
! 1242: void put_opt6_string(char *s);
! 1243: #endif
! 1244:
! 1245: /* radv.c */
! 1246: #ifdef HAVE_DHCP6
! 1247: void ra_init(time_t now);
! 1248: void icmp6_packet(time_t now);
! 1249: time_t periodic_ra(time_t now);
! 1250: void ra_start_unsolicted(time_t now, struct dhcp_context *context);
! 1251: #endif
! 1252:
! 1253: /* slaac.c */
! 1254: #ifdef HAVE_DHCP6
! 1255: void slaac_add_addrs(struct dhcp_lease *lease, time_t now, int force);
! 1256: time_t periodic_slaac(time_t now, struct dhcp_lease *leases);
! 1257: void slaac_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface, struct dhcp_lease *leases);
! 1258: #endif
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