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Diffstat (limited to 'contrib/bind/bin/named/ns_defs.h')
| -rw-r--r-- | contrib/bind/bin/named/ns_defs.h | 935 |
1 files changed, 0 insertions, 935 deletions
diff --git a/contrib/bind/bin/named/ns_defs.h b/contrib/bind/bin/named/ns_defs.h deleted file mode 100644 index 7c00a1f..0000000 --- a/contrib/bind/bin/named/ns_defs.h +++ /dev/null @@ -1,935 +0,0 @@ -/* - * from ns.h 4.33 (Berkeley) 8/23/90 - * $Id: ns_defs.h,v 8.124.6.1 2003/06/02 09:56:34 marka Exp $ - */ - -/* - * Copyright (c) 1986 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996-2000 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1999 by Check Point Software Technologies, Inc. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Check Point Software Technologies Incorporated not be used - * in advertising or publicity pertaining to distribution of the document - * or software without specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND CHECK POINT SOFTWARE TECHNOLOGIES - * INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. - * IN NO EVENT SHALL CHECK POINT SOFTWARE TECHNOLOGIES INCORPRATED - * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER - * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT - * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -/* - * Global definitions for the name server. - */ - -/* - * Effort has been expended here to make all structure members 32 bits or - * larger land on 32-bit boundaries; smaller structure members have been - * deliberately shuffled and smaller integer sizes chosen where possible - * to make sure this happens. This is all meant to avoid structure member - * padding which can cost a _lot_ of memory when you have hundreds of - * thousands of entries in your cache. - */ - -/* - * Timeout time should be around 1 minute or so. Using the - * the current simplistic backoff strategy, the sequence - * retrys after 4, 8, and 16 seconds. With 3 servers, this - * dies out in a little more than a minute. - * (sequence RETRYBASE, 2*RETRYBASE, 4*RETRYBASE... for MAXRETRY) - */ -#define NEWZONES 64 /* how many zones to grow the zone table by */ -#define INITIALZONES NEWZONES /* how many zones are allocated initially */ -#define MINROOTS 2 /* min number of root hints */ -#define NSMAX 16 /* max number of NS addrs to try ([0..255]) */ -#define RETRYBASE 4 /* base time between retries */ -#define MAXCLASS 255 /* XXX - may belong elsewhere */ -#define MAXRETRY 3 /* max number of retries per addr */ -#define MAXCNAMES 8 /* max # of CNAMES tried per addr */ -#define MAXQUERIES 20 /* max # of queries to be made */ -#define MAXQSERIAL 4 /* max # of outstanding QSERIAL's */ - /* (prevent "recursive" loops) */ -#define INIT_REFRESH 600 /* retry time for initial slave */ - /* contact (10 minutes) */ -#define MIN_REFRESH 2 /* never refresh more frequently than once */ - /* every MIN_REFRESH seconds */ -#define MIN_RETRY 1 /* never retry more frequently than once */ - /* every MIN_RETRY seconds */ -#define MAX_REFRESH 2419200 /* perform a refresh query at least */ - /* every 4 weeks*/ -#define MAX_RETRY 1209600 /* perform a retry after no more than 2 weeks */ -#define MAX_EXPIRE 31536000 /* expire a zone if we have not talked to */ - /* the primary in 1 year */ -#define NADDRECS 20 /* max addt'l rr's per resp */ - -#define XFER_TIMER 120 /* named-xfer's connect timeout */ -#define MAX_XFER_TIME 60*60*2 /* default max seconds for an xfer */ -#define XFER_TIME_FUDGE 10 /* MAX_XFER_TIME fudge */ -#define MAX_XFERS_RUNNING 20 /* max value of transfers_in */ -#define DEFAULT_XFERS_RUNNING 10 /* default value of transfers_in */ -#define DEFAULT_XFERS_PER_NS 2 /* default # of xfers per peer nameserver */ -#define XFER_BUFSIZE (16*1024) /* arbitrary but bigger than most MTU's */ -#define MAX_SYNCDELAY 3 /* Presumed timeout in use by our clients. */ -#define MAX_SYNCDRAIN 100000 /* How long we'll spin in drain_all_rcvbuf. */ -#define MAX_SYNCSTORE 500 -#define NS_MAX_DISTANCE 3 /* maximum nameserver chaining before failure */ - - /* maximum time to cache negative answers */ -#define DEFAULT_MAX_NCACHE_TTL (3*60*60) - -#define ALPHA 0.7 /* How much to preserve of old response time */ -#define BETA 1.2 /* How much to penalize response time on failure */ -#define GAMMA 0.98 /* How much to decay unused response times */ - - /* What maintainance operations need to be performed sometime soon? */ -typedef enum need { - main_need_zreload = 0, /* ns_zreload() needed. */ - main_need_reload, /* ns_reload() needed. */ - main_need_reconfig, /* ns_reconfig() needed. */ - main_need_endxfer, /* endxfer() needed. */ - main_need_zoneload, /* loadxfer() needed. */ - main_need_dump, /* doadump() needed. */ - main_need_statsdump, /* ns_stats() needed. */ - main_need_statsdumpandclear, /* ns_stats() needed. */ - main_need_exit, /* exit() needed. */ - main_need_qrylog, /* toggle_qrylog() needed. */ - main_need_debug, /* use_desired_debug() needed. */ - main_need_restart, /* exec() needed. */ - main_need_reap, /* need to reap dead children. */ - main_need_noexpired, /* ns_reconfig() needed w/ noexpired set. */ - main_need_tryxfer, /* attemt to start a zone transfer. */ - main_need_num /* MUST BE LAST. */ -} main_need; - - /* What global options are set? */ -#define OPTION_NORECURSE 0x00000001 /* Don't recurse even if asked. */ -#define OPTION_NOFETCHGLUE 0x00000002 /* Don't fetch missing glue. */ -#define OPTION_FORWARD_ONLY 0x00000004 /* Don't use NS RR's, just forward. */ -#define OPTION_FAKE_IQUERY 0x00000008 /* Fake up bogus response to IQUERY. */ -#ifdef BIND_NOTIFY -/* #define OPTION_NONOTIFY 0x00000010 */ /* Turn off notify */ -#define OPTION_SUPNOTIFY_INITIAL 0x00000020 /* Supress initial notify */ -#endif -#define OPTION_NONAUTH_NXDOMAIN 0x00000040 /* Generate non-auth NXDOMAINs? */ -#define OPTION_MULTIPLE_CNAMES 0x00000080 /* Allow a name to have multiple - * CNAME RRs */ -#define OPTION_HOSTSTATS 0x00000100 /* Maintain per-host statistics? */ -#define OPTION_DEALLOC_ON_EXIT 0x00000200 /* Deallocate everything on exit? */ -#define OPTION_NODIALUP 0x00000400 /* Turn off dialup support */ -#define OPTION_NORFC2308_TYPE1 0x00000800 /* Prevent type1 respones (RFC 2308) - * to cached negative respones */ -#define OPTION_USE_ID_POOL 0x00001000 /* Use the memory hogging query ID */ -#define OPTION_TREAT_CR_AS_SPACE 0x00002000 /* Treat CR in zone files as - * space */ -#define OPTION_USE_IXFR 0x00004000 /* Use by default ixfr in zone - * transfer */ -#define OPTION_MAINTAIN_IXFR_BASE 0x00008000 /* Part of IXFR file name logic. */ -#define OPTION_HITCOUNT 0x00010000 /* Keep track of each time an - * RR gets hit in the database */ - -#define DEFAULT_OPTION_FLAGS (OPTION_NODIALUP|OPTION_NONAUTH_NXDOMAIN|\ - OPTION_USE_ID_POOL|OPTION_NORFC2308_TYPE1) - -#ifdef BIND_UPDATE -#define SOAINCRINTVL 300 /* default value for the time after which - * the zone serial number must be incremented - * after a successful update has occurred */ -#define DUMPINTVL 3600 /* default interval at which to dump changed zones - * randomized, not exact */ -#define DEFERUPDCNT 100 /* default number of updates that can happen - * before the zone serial number will be - * incremented */ -#define UPDATE_TIMER XFER_TIMER -#endif /* BIND_UPDATE */ - -#define USE_MINIMUM 0xffffffff -#define MAXIMUM_TTL 0x7fffffff - -#define CLEAN_TIMER 0x01 -#define INTERFACE_TIMER 0x02 -#define STATS_TIMER 0x04 -#define HEARTBEAT_TIMER 0x08 - - /* IP address accessor, network byte order. */ -#define ina_ulong(ina) (ina.s_addr) - - /* IP address accessor, host byte order, read only. */ -#define ina_hlong(ina) ntohl(ina.s_addr) - - /* IP address equality. */ - /* XXX: assumes that network byte order won't affect equality. */ -#define ina_equal(a, b) (ina_ulong(a) == ina_ulong(b)) - - /* IP address equality with a mask. */ -#define ina_onnet(h, n, m) ((ina_ulong(h) & ina_ulong(m)) == ina_ulong(n)) - - /* Sequence space arithmetic. */ -#define SEQ_GT(a,b) ((int32_t)((a)-(b)) > 0) -#define SEQ_LT(a,b) ((int32_t)((a)-(b)) < 0) - -#define NS_OPTION_P(option) ((server_options == NULL) ? \ - (panic(panic_msg_no_options, NULL), 0) : \ - ((server_options->flags & option) != 0)) - -#define NS_ZOPTION_P(zp, option) \ - (((zp) != NULL && (((zp)->z_optset & option) != 0)) ? \ - (((zp)->z_options & option) != 0) : NS_OPTION_P(option)) - -#define NS_ZFWDTAB(zp) (((zp) == NULL) ? \ - server_options->fwdtab : (zp)->z_fwdtab) - -#define NS_INCRSTAT(addr, which) \ - do { \ - if ((int)which >= (int)nssLast) \ - ns_panic(ns_log_insist, 1, panic_msg_bad_which, \ - __FILE__, __LINE__, #which); \ - else { \ - if (NS_OPTION_P(OPTION_HOSTSTATS)) { \ - struct nameser *ns = \ - nameserFind(addr, NS_F_INSERT); \ - if (ns != NULL) \ - ns->stats[(int)which]++; \ - } \ - globalStats[(int)which]++; \ - } \ - } while (0) - -enum severity { ignore, warn, fail, not_set }; - -#ifdef BIND_NOTIFY -enum notify { notify_use_default=0, notify_yes, notify_no, notify_explicit }; -#endif - -enum zdialup { zdialup_use_default=0, zdialup_yes, zdialup_no }; - -enum axfr_format { axfr_use_default=0, axfr_one_answer, axfr_many_answers }; - -struct ip_match_direct { - struct in_addr address; - struct in_addr mask; -}; - -struct ip_match_indirect { - struct ip_match_list *list; -}; - -struct ip_match_key { - struct dst_key *key; -}; - -typedef enum { ip_match_pattern, ip_match_indirect, ip_match_localhost, - ip_match_localnets, ip_match_key } ip_match_type; - -typedef struct ip_match_element { - ip_match_type type; - u_int flags; - union { - struct ip_match_direct direct; - struct ip_match_indirect indirect; - struct ip_match_key key; - } u; - struct ip_match_element *next; -} *ip_match_element; - -/* Flags for ip_match_element */ -#define IP_MATCH_NEGATE 0x01 /* match means deny access */ - -typedef struct ip_match_list { - ip_match_element first; - ip_match_element last; -} *ip_match_list; - -typedef struct ztimer_info { - char *name; - int class; - int type; -} *ztimer_info; - -/* - * These fields are ordered to maintain word-alignment; - * be careful about changing them. - */ -struct zoneinfo { - char *z_origin; /* root domain name of zone */ - time_t z_time; /* time for next refresh */ - time_t z_lastupdate; /* time of last soa serial increment */ - u_int32_t z_refresh; /* refresh interval */ - u_int32_t z_retry; /* refresh retry interval */ - u_int32_t z_expire; /* expiration time for cached info */ - u_int32_t z_minimum; /* minimum TTL value */ - u_int32_t z_serial; /* changes if zone modified */ - char *z_source; /* source location of data */ - time_t z_ftime; /* modification time of source file */ - struct in_addr z_axfr_src; /* bind() the axfr socket to this */ - struct in_addr z_addr[NSMAX]; /* list of master servers for zone */ - struct dst_key * z_keys[NSMAX]; /* tsig key associated with master */ - u_char z_addrcnt; /* number of entries in z_addr[] */ - struct in_addr z_xaddr[NSMAX]; /* list of master servers for xfer */ - u_char z_xaddrcnt; /* number of entries in z_xaddr[] */ - u_char z_type; /* type of zone; see below */ - u_int32_t z_flags; /* state bits; see below */ - pid_t z_xferpid; /* xfer child pid */ - u_int z_options; /* options set specific to this zone */ - u_int z_optset; /* which opts override global opts */ - int z_class; /* class of zone */ - int z_numxfrs; /* Ref count of concurrent xfrs. */ - enum severity z_checknames; /* How to handle non-RFC-compliant names */ -#ifdef BIND_UPDATE - time_t z_dumptime; /* randomized time for next zone dump - * if Z_NEED_DUMP is set */ - u_int32_t z_dumpintvl; /* time interval between zone dumps */ - time_t z_soaincrintvl; /* interval for updating soa serial */ - time_t z_soaincrtime; /* time for soa increment */ - u_int32_t z_deferupdcnt; /* max number of updates before SOA - * serial number incremented */ - u_int32_t z_updatecnt; /* number of update requests processed - * since the last SOA serial update */ - char *z_updatelog; /* log file for updates */ -#endif - ip_match_list z_update_acl; /* list of who can issue dynamic - updates */ - ip_match_list z_query_acl; /* sites we'll answer questions for */ - ip_match_list z_transfer_acl; /* sites that may get a zone transfer - from us */ - long z_max_transfer_time_in; /* max num seconds for AXFR */ -#ifdef BIND_NOTIFY - enum notify z_notify; /* Notify mode */ - struct in_addr *z_also_notify; /* More nameservers to notify */ - int z_notify_count; -#endif - enum zdialup z_dialup; /* secondaries over a dialup link */ - char *z_ixfr_base; /* where to find the history of the zone */ - char *z_ixfr_tmp; /* tmp file for the ixfr */ - int z_maintain_ixfr_base; - long z_max_log_size_ixfr; - u_int32_t z_serial_ixfr_start; - evTimerID z_timer; /* maintenance timer */ - ztimer_info z_timerinfo; /* UAP associated with timer */ - time_t z_nextmaint; /* time of next maintenance */ - u_int16_t z_port; /* perform AXFR to this port */ - struct fwdinfo *z_fwdtab; /* zone-specific forwarders */ - LINK(struct zoneinfo) z_freelink; /* if it's on the free list. */ - LINK(struct zoneinfo) z_reloadlink; /* if it's on the reload list. */ -}; - - /* zone types (z_type) */ -enum zonetype { z_nil, z_master, z_slave, z_hint, z_stub, z_forward, - z_cache, z_any }; -#define Z_NIL z_nil /* XXX */ -#define Z_MASTER z_master /* XXX */ -#define Z_PRIMARY z_master /* XXX */ -#define Z_SLAVE z_slave /* XXX */ -#define Z_SECONDARY z_slave /* XXX */ -#define Z_HINT z_hint /* XXX */ -#define Z_CACHE z_cache /* XXX */ -#define Z_STUB z_stub /* XXX */ -#define Z_FORWARD z_forward /* XXX */ -#define Z_ANY z_any /* XXX*2 */ - - /* zone state bits (32 bits) */ -#define Z_AUTH 0x00000001 /* zone is authoritative */ -#define Z_NEED_XFER 0x00000002 /* waiting to do xfer */ -#define Z_XFER_RUNNING 0x00000004 /* asynch. xfer is running */ -#define Z_NEED_RELOAD 0x00000008 /* waiting to do reload */ -#define Z_SYSLOGGED 0x00000010 /* have logged timeout */ -#define Z_QSERIAL 0x00000020 /* sysquery()'ing for serial number */ -#define Z_FOUND 0x00000040 /* found in boot file when reloading */ -#define Z_INCLUDE 0x00000080 /* set if include used in file */ -#define Z_DB_BAD 0x00000100 /* errors when loading file */ -#define Z_TMP_FILE 0x00000200 /* backup file for xfer is temporary */ -#ifdef BIND_UPDATE -#define Z_DYNAMIC 0x00000400 /* allow dynamic updates */ -#define Z_NEED_DUMP 0x00000800 /* zone has changed, needs a dump */ -#define Z_NEED_SOAUPDATE 0x00001000 /* soa serial number needs increment */ -#endif /* BIND_UPDATE */ -#define Z_XFER_ABORTED 0x00002000 /* zone transfer has been aborted */ -#define Z_XFER_GONE 0x00004000 /* zone transfer process is gone */ -#define Z_TIMER_SET 0x00008000 /* z_timer contains a valid id */ -#ifdef BIND_NOTIFY -#define Z_NOTIFY 0x00010000 /* has an outbound notify executing */ -#endif -#define Z_NEED_QSERIAL 0x00020000 /* we need to re-call qserial() */ -#define Z_PARENT_RELOAD 0x00040000 /* we need to reload this as parent */ -#define Z_FORWARD_SET 0x00080000 /* has forwarders been set */ -#define Z_EXPIRED 0x00100000 /* expire timer has gone off */ -#define Z_NEEDREFRESH 0x00200000 /* need to perform a refresh check */ - - /* named_xfer exit codes */ -#define XFER_UPTODATE 0 /* zone is up-to-date */ -#define XFER_SUCCESS 1 /* performed transfer successfully */ -#define XFER_TIMEOUT 2 /* no server reachable/xfer timeout */ -#define XFER_FAIL 3 /* other failure, has been logged */ -#define XFER_SUCCESSAXFR 4 /* named-xfr recived a xfr */ -#define XFER_SUCCESSIXFR 5 /* named-xfr recived a ixfr */ -#define XFER_SUCCESSAXFRIXFRFILE 6 /* named-xfr received AXFR for IXFR */ -#define XFER_REFUSED 7 /* one master returned REFUSED */ -#define XFER_ISAXFR -1 /* the last XFR is AXFR */ -#define XFER_ISIXFR -2 /* the last XFR is IXFR */ -#define XFER_ISAXFRIXFR -3 /* the last XFR is AXFR but we must create IXFR base */ - -struct qserv { - struct sockaddr_in - ns_addr; /* address of NS */ - struct databuf *ns; /* databuf for NS record */ - struct databuf *nsdata; /* databuf for server address */ - struct timeval stime; /* time first query started */ - unsigned int forwarder:1; /* this entry is for a forwarder */ - unsigned int noedns:1; /* don't try edns */ - unsigned int lame:1; /* this server was lame, try it last */ - unsigned int nretry:29; /* # of times addr retried */ - u_int32_t serial; /* valid if Q_ZSERIAL */ -}; - -/* - * Structure for recording info on forwarded or generated queries. - */ -struct qinfo { - u_int16_t q_id; /* id of query */ - u_int16_t q_nsid; /* id of forwarded query */ - struct sockaddr_in - q_from; /* requestor's address */ - u_char *q_msg, /* the message */ - *q_cmsg; /* the cname message */ - int16_t q_msglen, /* len of message */ - q_msgsize, /* allocated size of message */ - q_cmsglen, /* len of cname message */ - q_cmsgsize; /* allocated size of cname message */ - int16_t q_dfd; /* UDP file descriptor */ - u_int16_t q_udpsize; /* UDP message size */ - int q_distance; /* distance this query is from the - * original query that the server - * received. */ - time_t q_time; /* time to retry */ - time_t q_expire; /* time to expire */ - struct qinfo *q_next; /* rexmit list (sorted by time) */ - struct qinfo *q_link; /* storage list (random order) */ - struct databuf *q_usedns[NSMAX]; /* databuf for NS that we've tried */ - struct qserv q_addr[NSMAX]; /* addresses of NS's */ -#ifdef notyet - struct nameser *q_ns[NSMAX]; /* name servers */ -#endif - struct dst_key *q_keys[NSMAX]; /* keys to use with this address */ - u_char q_naddr; /* number of addr's in q_addr */ - u_char q_curaddr; /* last addr sent to */ - u_char q_nusedns; /* number of elements in q_usedns[] */ - u_int8_t q_flags; /* see below */ - int16_t q_cname; /* # of cnames found */ - int16_t q_nqueries; /* # of queries required */ - struct qstream *q_stream; /* TCP stream, null if UDP */ - struct zoneinfo *q_zquery; /* Zone query is about (Q_ZSERIAL) */ - struct zoneinfo *q_fzone; /* Forwarding zone, if any */ - char *q_domain; /* domain of most enclosing zone cut */ - char *q_name; /* domain of query */ - u_int16_t q_class; /* class of query */ - u_int16_t q_type; /* type of query */ -#ifdef BIND_NOTIFY - int q_notifyzone; /* zone which needs another notify() - * when the reply to this comes in. - */ -#endif - struct tsig_record *q_tsig; /* forwarded query's TSIG record */ - struct tsig_record *q_nstsig; /* forwarded query's TSIG record */ -}; - - /* q_flags bits (8 bits) */ -#define Q_SYSTEM 0x01 /* is a system query */ -#define Q_PRIMING 0x02 /* generated during priming phase */ -#define Q_ZSERIAL 0x04 /* getting zone serial for xfer test */ -#define Q_USEVC 0x08 /* forward using tcp not udp */ -#define Q_EDNS 0x10 /* add edns opt record to answer */ - -#define Q_NEXTADDR(qp,n) (&(qp)->q_addr[n].ns_addr) - -#define RETRY_TIMEOUT 45 - -/* - * Return codes from ns_forw: - */ -#define FW_OK 0 -#define FW_DUP 1 -#define FW_NOSERVER 2 -#define FW_SERVFAIL 3 - -typedef void (*sq_closure)(struct qstream *qs); - -#ifdef BIND_UPDATE -struct fdlist { - int fd; - struct fdlist *next; -}; -#endif - - -typedef struct ns_delta { - LINK(struct ns_delta) d_link; - ns_updque d_changes; -} ns_delta; - -typedef LIST(ns_delta) ns_deltalist; - -typedef struct _interface { - int dfd, /* Datagram file descriptor */ - sfd; /* Stream file descriptor. */ - time_t gen; /* Generation number. */ - struct in_addr addr; /* Interface address. */ - u_int16_t port; /* Interface port. */ - u_int16_t flags; /* Valid bits for evXXXXID. */ - evFileID evID_d; /* Datagram read-event. */ - evConnID evID_s; /* Stream listen-event. */ - LINK(struct _interface) link; -} interface; - -#define INTERFACE_FILE_VALID 0x01 -#define INTERFACE_CONN_VALID 0x02 -#define INTERFACE_FORWARDING 0x04 - -struct qstream { - int s_rfd; /* stream file descriptor */ - int s_size; /* expected amount of data to rcv */ - int s_bufsize; /* amount of data received in s_buf */ - u_char *s_buf; /* buffer of received data */ - u_char *s_wbuf; /* send buffer */ - u_char *s_wbuf_send; /* next sendable byte of send buffer */ - u_char *s_wbuf_free; /* next free byte of send buffer */ - u_char *s_wbuf_end; /* byte after end of send buffer */ - sq_closure s_wbuf_closure; /* callback for writable descriptor */ - struct qstream *s_next; /* next stream */ - struct sockaddr_in - s_from; /* address query came from */ - interface *s_ifp; /* interface query came from */ - time_t s_time; /* time stamp of last transaction */ - int s_refcnt; /* number of outstanding queries */ - u_char s_temp[HFIXEDSZ]; -#ifdef BIND_UPDATE - int s_opcode; /* type of request */ - int s_linkcnt; /* number of client connections using - * this connection to forward updates - * to the primary */ - struct fdlist *s_fds; /* linked list of connections to the - * primaries that have been used by - * the server to forward this client's - * update requests */ -#endif - evStreamID evID_r; /* read event. */ - evFileID evID_w; /* writable event handle. */ - evConnID evID_c; /* connect event handle */ - u_int flags; /* see below */ - struct qstream_xfr { - enum { s_x_base, s_x_firstsoa, s_x_zone, - s_x_lastsoa, s_x_done, s_x_adding, - s_x_deleting, s_x_addsoa, s_x_deletesoa } - state; /* state of transfer. */ - u_char *msg, /* current assembly message. */ - *cp, /* where are we in msg? */ - *eom, /* end of msg. */ - *ptrs[128]; /* ptrs for dn_comp(). */ - int class, /* class of an XFR. */ - type, /* type of XFR. */ - id, /* id of an XFR. */ - opcode; /* opcode of an XFR. */ - u_int zone; /* zone being XFR'd. */ - union { - struct namebuf *axfr; /* top np of an AXFR. */ - ns_deltalist *ixfr; /* top udp of an IXFR. */ - } top; - int ixfr_zone; - u_int32_t serial; /* serial number requested in IXFR */ - ns_tcp_tsig_state *tsig_state; /* used by ns_sign_tcp */ - int tsig_skip; /* skip calling ns_sign_tcp - * during the next flush */ - int tsig_size; /* need to reserve this space - * for the tsig. */ - struct qs_x_lev { /* decompose the recursion. */ - enum {sxl_ns, sxl_all, sxl_sub} - state; /* what's this level doing? */ - int flags; /* see below (SXL_*). */ - char dname[MAXDNAME]; - struct namebuf *np, /* this node. */ - *nnp, /* next node to process. */ - **npp, /* subs. */ - **npe; /* end of subs. */ - struct databuf *dp; /* current rr. */ - struct qs_x_lev *next; /* link. */ - } *lev; /* LIFO. */ - enum axfr_format transfer_format; - } xfr; -}; -#define SXL_GLUING 0x01 -#define SXL_ZONECUT 0x02 - - /* flags */ -#define STREAM_MALLOC 0x01 -#define STREAM_WRITE_EV 0x02 -#define STREAM_READ_EV 0x04 -#define STREAM_CONNECT_EV 0x08 -#define STREAM_DONE_CLOSE 0x10 -#define STREAM_AXFR 0x20 -#define STREAM_AXFRIXFR 0x40 - -#define ALLOW_NETS 0x0001 -#define ALLOW_HOSTS 0x0002 -#define ALLOW_ALL (ALLOW_NETS | ALLOW_HOSTS) - -struct fwddata { - struct sockaddr_in - fwdaddr; /* address of NS */ - struct databuf *ns; /* databuf for NS record */ - struct databuf *nsdata; /* databuf for server address */ - int ref_count; /* how many users of this */ -}; - -struct fwdinfo { - struct fwdinfo *next; - struct fwddata *fwddata; -}; - -enum nameserStats { nssRcvdR, /* sent us an answer */ - nssRcvdNXD, /* sent us a negative response */ - nssRcvdFwdR, /* sent us a response we had to fwd */ - nssRcvdDupR, /* sent us an extra answer */ - nssRcvdFail, /* sent us a SERVFAIL */ - nssRcvdFErr, /* sent us a FORMERR */ - nssRcvdErr, /* sent us some other error */ - nssRcvdAXFR, /* sent us an AXFR */ - nssRcvdLDel, /* sent us a lame delegation */ - nssRcvdOpts, /* sent us some IP options */ - nssSentSysQ, /* sent them a sysquery */ - nssSentAns, /* sent them an answer */ - nssSentFwdQ, /* fwdd a query to them */ - nssSentDupQ, /* sent them a retry */ - nssSendtoErr, /* error in sendto */ - nssRcvdQ, /* sent us a query */ - nssRcvdIQ, /* sent us an inverse query */ - nssRcvdFwdQ, /* sent us a query we had to fwd */ - nssRcvdDupQ, /* sent us a retry */ - nssRcvdTCP, /* sent us a query using TCP */ - nssSentFwdR, /* fwdd a response to them */ - nssSentFail, /* sent them a SERVFAIL */ - nssSentFErr, /* sent them a FORMERR */ - nssSentNaAns, /* sent them a non autoritative answer */ - nssSentNXD, /* sent them a negative response */ - nssRcvdUQ, /* sent us an unapproved query */ - nssRcvdURQ, /* sent us an unapproved recursive query */ - nssRcvdUXFR, /* sent us an unapproved AXFR or IXFR */ - nssRcvdUUpd, /* sent us an unapproved update */ - nssLast }; - -struct nameser { - struct in_addr addr; /* key */ - u_long stats[nssLast]; /* statistics */ -#ifdef notyet - u_int32_t rtt; /* round trip time */ - /* XXX - need to add more stuff from "struct qserv", and use our rtt */ - u_int16_t flags; /* see below */ - u_int8_t xfers; /* #/xfers running right now */ -#endif -}; - -enum transport { primary_trans, secondary_trans, response_trans, update_trans, - num_trans }; - -/* types used by the parser or config routines */ - -typedef struct zone_config { - void *opaque; -} zone_config; - -typedef struct listen_info { - u_short port; - ip_match_list list; - struct listen_info *next; -} *listen_info; - -typedef struct listen_info_list { - listen_info first; - listen_info last; -} *listen_info_list; - -#ifndef RLIMIT_TYPE -#define RLIMIT_TYPE u_long -#endif -typedef RLIMIT_TYPE rlimit_type; - -struct control; -typedef struct control *control; -typedef LIST(struct control) controls; - -enum ordering { unknown_order, fixed_order, cyclic_order, random_order }; - -#define DEFAULT_ORDERING cyclic_order - -typedef struct rrset_order_element { - int class; - int type; - char *name; - enum ordering order; - struct rrset_order_element *next; -} *rrset_order_element ; - -typedef struct rrset_order_list { - rrset_order_element first; - rrset_order_element last; -} *rrset_order_list; - - -typedef struct options { - u_int32_t flags; - char *hostname; - char *version; - char *directory; - char *dump_filename; - char *pid_filename; - char *stats_filename; - char *memstats_filename; - char *named_xfer; - int transfers_in; - int transfers_per_ns; - int transfers_out; - int serial_queries; - int max_log_size_ixfr; - enum axfr_format transfer_format; - long max_transfer_time_in; - struct sockaddr_in query_source; - struct in_addr axfr_src; -#ifdef BIND_NOTIFY - int notify_count; - struct in_addr *also_notify; -#endif - ip_match_list query_acl; - ip_match_list recursion_acl; - ip_match_list transfer_acl; - ip_match_list blackhole_acl; - ip_match_list topology; - ip_match_list sortlist; - enum severity check_names[num_trans]; - u_long data_size; - u_long stack_size; - u_long core_size; - u_long files; - listen_info_list listen_list; - struct fwdinfo *fwdtab; - /* XXX need to add forward option */ - int clean_interval; - int interface_interval; - int stats_interval; - rrset_order_list ordering; - int heartbeat_interval; - u_int max_ncache_ttl; - u_int max_host_stats; - u_int lame_ttl; - int minroots; - u_int16_t preferred_glue; - u_int16_t edns_udp_size; - enum notify notify; -} *options; - -typedef struct key_list_element { - struct dst_key *key; - struct key_list_element *next; -} *key_list_element; - -typedef struct key_info_list { - key_list_element first; - key_list_element last; -} *key_info_list; - -typedef struct topology_config { - void *opaque; -} topology_config; - -#define UNKNOWN_TOPOLOGY_DISTANCE 9998 -#define MAX_TOPOLOGY_DISTANCE 9999 - -typedef struct topology_distance { - ip_match_list patterns; - struct topology_distance *next; -} *topology_distance; - -typedef struct topology_context { - topology_distance first; - topology_distance last; -} *topology_context; - -typedef struct acl_table_entry { - char *name; - ip_match_list list; - struct acl_table_entry *next; -} *acl_table_entry; - -typedef struct server_config { - void *opaque; -} server_config; - -#define SERVER_INFO_BOGUS 0x01 -#define SERVER_INFO_SUPPORT_IXFR 0x02 -#define SERVER_INFO_EDNS 0x04 - -typedef struct server_info { - struct in_addr address; - u_int flags; - int transfers; - enum axfr_format transfer_format; - key_info_list key_list; - /* could move statistics to here, too */ - struct server_info *next; -} *server_info; - -/* - * enum <--> name translation - */ - -struct ns_sym { - int number; /* Identifying number, like ns_log_default */ - const char * name; /* Its symbolic name, like "default" */ -}; - -/* - * Logging options - */ - -typedef enum ns_logging_categories { - ns_log_default = 0, - ns_log_config, - ns_log_parser, - ns_log_queries, - ns_log_lame_servers, - ns_log_statistics, - ns_log_panic, - ns_log_update, - ns_log_ncache, - ns_log_xfer_in, - ns_log_xfer_out, - ns_log_db, - ns_log_eventlib, - ns_log_packet, -#ifdef BIND_NOTIFY - ns_log_notify, -#endif - ns_log_cname, - ns_log_security, - ns_log_os, - ns_log_insist, - ns_log_maint, - ns_log_load, - ns_log_resp_checks, - ns_log_control, - ns_log_update_security, - ns_log_max_category -} ns_logging_categories; - -typedef struct log_config { - log_context log_ctx; - log_channel eventlib_channel; - log_channel packet_channel; - int default_debug_active; -} *log_config; - -struct map { - const char * token; - int val; -}; - -#define NOERROR_NODATA 15 /* only used internally by the server, used for - * -ve $ing non-existence of records. 15 is not - * a code used as yet anyway. - */ - -#define NTTL 600 /* ttl for negative data: 10 minutes? */ - -#define VQEXPIRY 900 /* a VQ entry expires in 15*60 = 900 seconds */ - -#ifdef BIND_UPDATE -enum req_action { Finish, Refuse, Return }; -#endif - -#ifdef INIT - error "INIT already defined, check system include files" -#endif -#ifdef DECL - error "DECL already defined, check system include files" -#endif - -#ifdef MAIN_PROGRAM -#define INIT(x) = x -#define DECL -#else -#define INIT(x) -#define DECL extern -#endif - -#define EDNS_MESSAGE_SZ 4096 |
