757 lines
25 KiB
C
757 lines
25 KiB
C
/*
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* from ns.h 4.33 (Berkeley) 8/23/90
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* $Id: ns_defs.h,v 8.39 1998/04/14 00:35:09 halley Exp $
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*/
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/*
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* Copyright (c) 1986
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Portions Copyright (c) 1996, 1997 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Global definitions for the name server.
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*/
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/*
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* Effort has been expended here to make all structure members 32 bits or
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* larger land on 32-bit boundaries; smaller structure members have been
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* deliberately shuffled and smaller integer sizes chosen where possible
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* to make sure this happens. This is all meant to avoid structure member
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* padding which can cost a _lot_ of memory when you have hundreds of
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* thousands of entries in your cache.
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*/
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/*
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* Timeout time should be around 1 minute or so. Using the
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* the current simplistic backoff strategy, the sequence
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* retrys after 4, 8, and 16 seconds. With 3 servers, this
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* dies out in a little more than a minute.
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* (sequence RETRYBASE, 2*RETRYBASE, 4*RETRYBASE... for MAXRETRY)
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*/
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#define MINROOTS 2 /* min number of root hints */
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#define NSMAX 16 /* max number of NS addrs to try ([0..255]) */
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#define RETRYBASE 4 /* base time between retries */
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#define MAXCLASS 255 /* XXX - may belong elsewhere */
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#define MAXRETRY 3 /* max number of retries per addr */
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#define MAXCNAMES 8 /* max # of CNAMES tried per addr */
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#define MAXQUERIES 20 /* max # of queries to be made */
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#define MAXQSERIAL 4 /* max # of outstanding QSERIAL's */
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/* (prevent "recursive" loops) */
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#define INIT_REFRESH 600 /* retry time for initial secondary */
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/* contact (10 minutes) */
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#define MIN_REFRESH 2 /* never refresh more frequently than once */
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/* every MIN_REFRESH seconds */
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#define MIN_RETRY 1 /* never retry more frequently than once */
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/* every MIN_RETRY seconds */
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#define NADDRECS 20 /* max addt'l rr's per resp */
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#define XFER_TIMER 120 /* named-xfer's connect timeout */
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#define MAX_XFER_TIME 60*60*2 /* default max seconds for an xfer */
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#define XFER_TIME_FUDGE 10 /* MAX_XFER_TIME fudge */
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#define MAX_XFERS_RUNNING 20 /* max value of transfers_in */
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#define DEFAULT_XFERS_RUNNING 10 /* default value of transfers_in */
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#define DEFAULT_XFERS_PER_NS 2 /* default # of xfers per peer nameserver */
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#define XFER_BUFSIZE (16*1024) /* arbitrary but bigger than most MTU's */
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#define ALPHA 0.7 /* How much to preserve of old response time */
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#define BETA 1.2 /* How much to penalize response time on failure */
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#define GAMMA 0.98 /* How much to decay unused response times */
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/* What maintainance operations need to be performed sometime soon? */
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#define MAIN_NEED_RELOAD 0x0001 /* db_reload() needed. */
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#define MAIN_NEED_MAINT 0x0002 /* ns_maint() needed. */
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#define MAIN_NEED_ENDXFER 0x0004 /* endxfer() needed. */
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#define MAIN_NEED_ZONELOAD 0x0008 /* loadxfer() needed. */
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#define MAIN_NEED_DUMP 0x0010 /* doadump() needed. */
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#define MAIN_NEED_STATSDUMP 0x0020 /* ns_stats() needed. */
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#define MAIN_NEED_EXIT 0x0040 /* exit() needed. */
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#define MAIN_NEED_QRYLOG 0x0080 /* toggle_qrylog() needed. */
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#define MAIN_NEED_DEBUG 0x0100 /* use_desired_debug() needed. */
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#define MAIN_NEED_NOTIFY 0x0200 /* do_notify_after_load() needed */
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/* What global options are set? */
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#define OPTION_NORECURSE 0x0001 /* Don't recurse even if asked. */
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#define OPTION_NOFETCHGLUE 0x0002 /* Don't fetch missing glue. */
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#define OPTION_FORWARD_ONLY 0x0004 /* Don't use NS RR's, just forward. */
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#define OPTION_FAKE_IQUERY 0x0008 /* Fake up bogus response to IQUERY. */
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#define OPTION_NONOTIFY 0x0010 /* Turn off notify */
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#define OPTION_NONAUTH_NXDOMAIN 0x0020 /* Generate non-auth NXDOMAINs? */
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#define OPTION_MULTIPLE_CNAMES 0x0040 /* Allow a name to have multiple
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* CNAME RRs */
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#define OPTION_HOSTSTATS 0x0080 /* Maintain per-host statistics? */
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#define OPTION_DEALLOC_ON_EXIT 0x0100 /* Deallocate everything on exit? */
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#define DEFAULT_OPTION_FLAGS 0
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#ifdef BIND_UPDATE
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#define SOAINCRINTVL 300 /* default value for the time after which
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* the zone serial number must be incremented
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* after a successful update has occurred */
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#define DUMPINTVL 3600 /* default interval at which to dump changed zones
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* randomized, not exact */
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#define DEFERUPDCNT 100 /* default number of updates that can happen
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* before the zone serial number will be
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* incremented */
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#define UPDATE_TIMER XFER_TIMER
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#endif /* BIND_UPDATE */
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#define USE_MINIMUM 0xffffffff
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#define MAXIMUM_TTL 0x7fffffff
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#define CLEAN_TIMER 0x01
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#define INTERFACE_TIMER 0x02
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#define STATS_TIMER 0x04
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/* IP address accessor, network byte order. */
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#define ina_ulong(ina) (ina.s_addr)
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/* IP address accessor, host byte order, read only. */
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#define ina_hlong(ina) ntohl(ina.s_addr)
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/* IP address equality. */
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/* XXX: assumes that network byte order won't affect equality. */
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#define ina_equal(a, b) (ina_ulong(a) == ina_ulong(b))
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/* IP address equality with a mask. */
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#define ina_onnet(h, n, m) ((ina_ulong(h) & ina_ulong(m)) == ina_ulong(n))
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/* Sequence space arithmetic. */
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#define SEQ_GT(a,b) ((int32_t)((a)-(b)) > 0)
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#define NS_OPTION_P(option) ((server_options == NULL) ? \
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(panic(panic_msg_no_options, NULL), 0) : \
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((server_options->flags & option) != 0))
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#define NS_INCRSTAT(addr, which) \
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do { \
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if ((int)which >= (int)nssLast) \
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ns_panic(ns_log_insist, 1, panic_msg_bad_which, \
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__FILE__, __LINE__, #which); \
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else { \
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if (NS_OPTION_P(OPTION_HOSTSTATS)) { \
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struct nameser *ns = \
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nameserFind(addr, NS_F_INSERT); \
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if (ns != NULL) \
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ns->stats[(int)which]++; \
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} \
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globalStats[(int)which]++; \
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} \
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} while (0)
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enum severity { ignore, warn, fail, not_set };
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enum znotify { znotify_use_default=0, znotify_yes, znotify_no };
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enum axfr_format { axfr_use_default=0, axfr_one_answer, axfr_many_answers };
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struct ip_match_direct {
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struct in_addr address;
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struct in_addr mask;
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};
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struct ip_match_indirect {
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struct ip_match_list *list;
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};
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typedef enum { ip_match_pattern, ip_match_indirect, ip_match_localhost,
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ip_match_localnets } ip_match_type;
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typedef struct ip_match_element {
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ip_match_type type;
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u_int flags;
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union {
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struct ip_match_direct direct;
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struct ip_match_indirect indirect;
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} u;
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struct ip_match_element *next;
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} *ip_match_element;
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/* Flags for ip_match_element */
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#define IP_MATCH_NEGATE 0x01 /* match means deny access */
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typedef struct ip_match_list {
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ip_match_element first;
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ip_match_element last;
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} *ip_match_list;
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typedef struct ztimer_info {
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char *name;
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int class;
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int type;
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} *ztimer_info;
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/* these fields are ordered to maintain word-alignment;
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* be careful about changing them.
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*/
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struct zoneinfo {
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char *z_origin; /* root domain name of zone */
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time_t z_time; /* time for next refresh */
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time_t z_lastupdate; /* time of last soa serial increment */
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u_int32_t z_refresh; /* refresh interval */
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u_int32_t z_retry; /* refresh retry interval */
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u_int32_t z_expire; /* expiration time for cached info */
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u_int32_t z_minimum; /* minimum TTL value */
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u_int32_t z_serial; /* changes if zone modified */
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char *z_source; /* source location of data */
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time_t z_ftime; /* modification time of source file */
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struct in_addr z_axfr_src; /* bind() the axfr socket to this */
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struct in_addr z_xaddr; /* override server for next xfer */
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struct in_addr z_addr[NSMAX]; /* list of master servers for zone */
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u_char z_addrcnt; /* number of entries in z_addr[] */
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u_char z_type; /* type of zone; see below */
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u_int16_t z_flags; /* state bits; see below */
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pid_t z_xferpid; /* xfer child pid */
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int z_class; /* class of zone */
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int z_numxfrs; /* Ref count of concurrent xfrs. */
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enum severity z_checknames; /* How to handle non-RFC-compliant names */
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#ifdef BIND_UPDATE
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time_t z_dumptime; /* randomized time for next zone dump
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* if Z_NEED_DUMP is set */
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u_int32_t z_dumpintvl; /* time interval between zone dumps */
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time_t z_soaincrintvl; /* interval for updating soa serial */
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time_t z_soaincrtime; /* time for soa increment */
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u_int32_t z_deferupdcnt; /* max number of updates before SOA
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* serial number incremented */
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u_int32_t z_updatecnt; /* number of update requests processed
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* since the last SOA serial update */
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char *z_updatelog; /* log file for updates */
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#endif
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ip_match_list z_update_acl; /* list of who can issue dynamic
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updates */
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ip_match_list z_query_acl; /* sites we'll answer questions for */
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ip_match_list z_transfer_acl; /* sites that may get a zone transfer
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from us */
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long z_max_transfer_time_in; /* max num seconds for AXFR */
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enum znotify z_notify; /* Notify mode */
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struct in_addr z_also_notify[NSMAX]; /* More nameservers to notify */
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int z_notify_count;
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evTimerID z_timer; /* maintenance timer */
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ztimer_info z_timerinfo; /* UAP associated with timer */
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time_t z_nextmaint; /* time of next maintenance */
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};
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/* zone types (z_type) */
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enum zonetype { z_nil, z_master, z_slave, z_hint, z_stub, z_any };
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#define Z_NIL z_nil /* XXX */
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#define Z_MASTER z_master /* XXX */
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#define Z_PRIMARY z_master /* XXX */
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#define Z_SLAVE z_slave /* XXX */
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#define Z_SECONDARY z_slave /* XXX */
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#define Z_HINT z_hint /* XXX */
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#define Z_CACHE z_hint /* XXX */
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#define Z_STUB z_stub /* XXX */
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#define Z_ANY z_any /* XXX*2 */
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/* zone state bits (16 bits) */
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#define Z_AUTH 0x0001 /* zone is authoritative */
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#define Z_NEED_XFER 0x0002 /* waiting to do xfer */
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#define Z_XFER_RUNNING 0x0004 /* asynch. xfer is running */
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#define Z_NEED_RELOAD 0x0008 /* waiting to do reload */
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#define Z_SYSLOGGED 0x0010 /* have logged timeout */
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#define Z_QSERIAL 0x0020 /* sysquery()'ing for serial number */
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#define Z_FOUND 0x0040 /* found in boot file when reloading */
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#define Z_INCLUDE 0x0080 /* set if include used in file */
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#define Z_DB_BAD 0x0100 /* errors when loading file */
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#define Z_TMP_FILE 0x0200 /* backup file for xfer is temporary */
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#ifdef BIND_UPDATE
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#define Z_DYNAMIC 0x0400 /* allow dynamic updates */
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#define Z_NEED_DUMP 0x0800 /* zone has changed, needs a dump */
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#define Z_NEED_SOAUPDATE 0x1000 /* soa serial number needs increment */
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#endif /* BIND_UPDATE */
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#define Z_XFER_ABORTED 0x2000 /* zone transfer has been aborted */
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#define Z_XFER_GONE 0x4000 /* zone transfer process is gone */
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#define Z_TIMER_SET 0x8000 /* z_timer contains a valid id */
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/* named_xfer exit codes */
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#define XFER_UPTODATE 0 /* zone is up-to-date */
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#define XFER_SUCCESS 1 /* performed transfer successfully */
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#define XFER_TIMEOUT 2 /* no server reachable/xfer timeout */
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#define XFER_FAIL 3 /* other failure, has been logged */
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/* XXX - "struct qserv" is deprecated in favor of "struct nameser" */
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struct qserv {
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struct sockaddr_in
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ns_addr; /* address of NS */
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struct databuf *ns; /* databuf for NS record */
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struct databuf *nsdata; /* databuf for server address */
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struct timeval stime; /* time first query started */
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int nretry; /* # of times addr retried */
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};
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/*
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* Structure for recording info on forwarded or generated queries.
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*/
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struct qinfo {
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u_int16_t q_id; /* id of query */
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u_int16_t q_nsid; /* id of forwarded query */
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struct sockaddr_in
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q_from; /* requestor's address */
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u_char *q_msg, /* the message */
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*q_cmsg; /* the cname message */
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int16_t q_msglen, /* len of message */
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q_msgsize, /* allocated size of message */
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q_cmsglen, /* len of cname message */
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q_cmsgsize; /* allocated size of cname message */
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int16_t q_dfd; /* UDP file descriptor */
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struct fwdinfo *q_fwd; /* last forwarder used */
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time_t q_time; /* time to retry */
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time_t q_expire; /* time to expire */
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struct qinfo *q_next; /* rexmit list (sorted by time) */
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struct qinfo *q_link; /* storage list (random order) */
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struct databuf *q_usedns[NSMAX]; /* databuf for NS that we've tried */
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struct qserv q_addr[NSMAX]; /* addresses of NS's */
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#ifdef notyet
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struct nameser *q_ns[NSMAX]; /* name servers */
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#endif
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u_char q_naddr; /* number of addr's in q_addr */
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u_char q_curaddr; /* last addr sent to */
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u_char q_nusedns; /* number of elements in q_usedns[] */
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u_int8_t q_flags; /* see below */
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int16_t q_cname; /* # of cnames found */
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int16_t q_nqueries; /* # of queries required */
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struct qstream *q_stream; /* TCP stream, null if UDP */
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struct zoneinfo *q_zquery; /* Zone query is about (Q_ZSERIAL) */
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char *q_domain; /* domain of most enclosing zone cut */
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char *q_name; /* domain of query */
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u_int16_t q_class; /* class of query */
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u_int16_t q_type; /* type of query */
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#ifdef BIND_NOTIFY
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int q_notifyzone; /* zone which needs a sysnotify()
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* when the reply to this comes in.
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*/
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#endif
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};
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/* q_flags bits (8 bits) */
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#define Q_SYSTEM 0x01 /* is a system query */
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#define Q_PRIMING 0x02 /* generated during priming phase */
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#define Q_ZSERIAL 0x04 /* getting zone serial for xfer test */
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#define Q_USEVC 0x08 /* forward using tcp not udp */
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#define Q_NEXTADDR(qp,n) \
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(((qp)->q_fwd == (struct fwdinfo *)0) ? \
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&(qp)->q_addr[n].ns_addr : &(qp)->q_fwd->fwdaddr)
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#define RETRY_TIMEOUT 45
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/*
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* Return codes from ns_forw:
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*/
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#define FW_OK 0
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#define FW_DUP 1
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#define FW_NOSERVER 2
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#define FW_SERVFAIL 3
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typedef void (*sq_closure)(struct qstream *qs);
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#ifdef BIND_UPDATE
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struct fdlist {
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int fd;
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struct fdlist *next;
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};
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#endif
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typedef struct _interface {
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int dfd, /* Datagram file descriptor */
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sfd; /* Stream file descriptor. */
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time_t gen; /* Generation number. */
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struct in_addr addr; /* Interface address. */
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u_int16_t port; /* Interface port. */
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u_int16_t flags; /* Valid bits for evXXXXID. */
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evFileID evID_d; /* Datagram read-event. */
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evConnID evID_s; /* Stream listen-event. */
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LINK(struct _interface) link;
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} interface;
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#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
|