/* * from ns.h 4.33 (Berkeley) 8/23/90 * $Id: ns_defs.h,v 8.38 1998/03/17 03:22:27 halley 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, 1997 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. */ /* * 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 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 secondary */ /* 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 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 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? */ #define MAIN_NEED_RELOAD 0x0001 /* db_reload() needed. */ #define MAIN_NEED_MAINT 0x0002 /* ns_maint() needed. */ #define MAIN_NEED_ENDXFER 0x0004 /* endxfer() needed. */ #define MAIN_NEED_ZONELOAD 0x0008 /* loadxfer() needed. */ #define MAIN_NEED_DUMP 0x0010 /* doadump() needed. */ #define MAIN_NEED_STATSDUMP 0x0020 /* ns_stats() needed. */ #define MAIN_NEED_EXIT 0x0040 /* exit() needed. */ #define MAIN_NEED_QRYLOG 0x0080 /* toggle_qrylog() needed. */ #define MAIN_NEED_DEBUG 0x0100 /* use_desired_debug() needed. */ #define MAIN_NEED_NOTIFY 0x0200 /* do_notify_after_load() needed */ /* What global options are set? */ #define OPTION_NORECURSE 0x0001 /* Don't recurse even if asked. */ #define OPTION_NOFETCHGLUE 0x0002 /* Don't fetch missing glue. */ #define OPTION_FORWARD_ONLY 0x0004 /* Don't use NS RR's, just forward. */ #define OPTION_FAKE_IQUERY 0x0008 /* Fake up bogus response to IQUERY. */ #define OPTION_NONOTIFY 0x0010 /* Turn off notify */ #define OPTION_NONAUTH_NXDOMAIN 0x0020 /* Generate non-auth NXDOMAINs? */ #define OPTION_MULTIPLE_CNAMES 0x0040 /* Allow a name to have multiple * CNAME RRs */ #define OPTION_HOSTSTATS 0x0080 /* Maintain per-host statistics? */ #define OPTION_DEALLOC_ON_EXIT 0x0100 /* Deallocate everything on exit? */ #define DEFAULT_OPTION_FLAGS (OPTION_HOSTSTATS) #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 /* 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 NS_OPTION_P(option) ((server_options == NULL) ? \ (panic(panic_msg_no_options, NULL), 0) : \ ((server_options->flags & option) != 0)) #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 }; enum znotify { znotify_use_default=0, znotify_yes, znotify_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; }; typedef enum { ip_match_pattern, ip_match_indirect, ip_match_localhost, ip_match_localnets } 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; } 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_xaddr; /* override server for next xfer */ struct in_addr z_addr[NSMAX]; /* list of master servers for zone */ u_char z_addrcnt; /* number of entries in z_addr[] */ u_char z_type; /* type of zone; see below */ u_int16_t z_flags; /* state bits; see below */ pid_t z_xferpid; /* xfer child pid */ 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 */ enum znotify z_notify; /* Notify mode */ struct in_addr z_also_notify[NSMAX]; /* More nameservers to notify */ int z_notify_count; evTimerID z_timer; /* maintenance timer */ ztimer_info z_timerinfo; /* UAP associated with timer */ time_t z_nextmaint; /* time of next maintenance */ }; /* zone types (z_type) */ enum zonetype { z_nil, z_master, z_slave, z_hint, z_stub, 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_hint /* XXX */ #define Z_STUB z_stub /* XXX */ #define Z_ANY z_any /* XXX*2 */ /* zone state bits (16 bits) */ #define Z_AUTH 0x0001 /* zone is authoritative */ #define Z_NEED_XFER 0x0002 /* waiting to do xfer */ #define Z_XFER_RUNNING 0x0004 /* asynch. xfer is running */ #define Z_NEED_RELOAD 0x0008 /* waiting to do reload */ #define Z_SYSLOGGED 0x0010 /* have logged timeout */ #define Z_QSERIAL 0x0020 /* sysquery()'ing for serial number */ #define Z_FOUND 0x0040 /* found in boot file when reloading */ #define Z_INCLUDE 0x0080 /* set if include used in file */ #define Z_DB_BAD 0x0100 /* errors when loading file */ #define Z_TMP_FILE 0x0200 /* backup file for xfer is temporary */ #ifdef BIND_UPDATE #define Z_DYNAMIC 0x0400 /* allow dynamic updates */ #define Z_NEED_DUMP 0x0800 /* zone has changed, needs a dump */ #define Z_NEED_SOAUPDATE 0x1000 /* soa serial number needs increment */ #endif /* BIND_UPDATE */ #define Z_XFER_ABORTED 0x2000 /* zone transfer has been aborted */ #define Z_XFER_GONE 0x4000 /* zone transfer process is gone */ #define Z_TIMER_SET 0x8000 /* z_timer contains a valid id */ /* 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 */ /* XXX - "struct qserv" is deprecated in favor of "struct nameser" */ 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 */ int nretry; /* # of times addr retried */ }; /* * 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 */ struct fwdinfo *q_fwd; /* last forwarder used */ 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 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) */ 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 a sysnotify() * when the reply to this comes in. */ #endif }; /* 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_NEXTADDR(qp,n) \ (((qp)->q_fwd == (struct fwdinfo *)0) ? \ &(qp)->q_addr[n].ns_addr : &(qp)->q_fwd->fwdaddr) #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 _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 } 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. */ id, /* id of an XFR. */ opcode; /* opcode of an XFR. */ u_int zone; /* zone being XFR'd. */ struct namebuf *top; /* top np of an XFR. */ 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 ALLOW_NETS 0x0001 #define ALLOW_HOSTS 0x0002 #define ALLOW_ALL (ALLOW_NETS | ALLOW_HOSTS) struct fwdinfo { struct fwdinfo *next; struct sockaddr_in fwdaddr; }; 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 */ 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 */ #endif u_int8_t xfers; /* #/xfers running right now */ }; enum transport { primary_trans, secondary_trans, response_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; typedef struct options { u_int flags; 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; enum axfr_format transfer_format; long max_transfer_time_in; struct sockaddr_in query_source; ip_match_list query_acl; ip_match_list transfer_acl; ip_match_list topology; 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; } *options; typedef struct key_info { char *name; char *algorithm; char *secret; /* XXX should be u_char? */ } *key_info; typedef struct key_list_element { key_info info; 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 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 */ 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, ns_log_notify, ns_log_cname, ns_log_security, ns_log_os, ns_log_insist, ns_log_maint, ns_log_load, ns_log_resp_checks, 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 { char * token; int val; }; #define NOERROR_NODATA 6 /* only used internally by the server, used for * -ve $ing non-existence of records. 6 is not * a code used as yet anyway. anant@isi.edu */ #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 BIND_NOTIFY typedef enum { notify_info_waitfor, notify_info_delay, notify_info_error, notify_info_done } notify_info_state; typedef struct notify_info { char *name; int class; notify_info_state state; evWaitID wait_id; evTimerID timer_id; LINK(struct notify_info) link; } *notify_info; typedef LIST(struct notify_info) notify_info_list; #endif /* BIND_NOTIFY */ #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