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Diffstat (limited to 'usr.sbin/named/ns.h')
| -rw-r--r-- | usr.sbin/named/ns.h | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/usr.sbin/named/ns.h b/usr.sbin/named/ns.h deleted file mode 100644 index 92c5cd34d5b..00000000000 --- a/usr.sbin/named/ns.h +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (c) 1985, 1990 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. - * - * from: @(#)ns.h 4.33 (Berkeley) 8/23/90 - * $Id: ns.h,v 1.1 1995/10/18 08:47:50 deraadt Exp $ - */ - -/* - * Global definitions and variables for the name server. - */ - -#include <arpa/inet.h> -#include <string.h> - -/* - * 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 */ -#define RETRYBASE 4 /* base time between retries */ -#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 */ - /* (prevent "recursive" loops) */ -#define INIT_REFRESH 600 /* retry time for initial secondary */ - /* contact (10 minutes) */ - -#define ALPHA 0.7 /* How much to preserver 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 */ - -struct zoneinfo { - int z_type; /* type of zone */ - int z_auth; /* zone is authoritative */ - char *z_origin; /* root domain name of zone */ - time_t z_time; /* time for next refresh */ - time_t z_lastupdate; /* time of last refresh */ - u_long z_refresh; /* refresh interval */ - u_long z_retry; /* refresh retry interval */ - u_long z_expire; /* expiration time for cached info */ - u_long z_minimum; /* minimum TTL value */ - u_long z_serial; /* changes if zone modified */ - char *z_source; /* source location of data */ - time_t z_ftime; /* modification time of source file */ - int z_addrcnt; /* address count */ - struct in_addr z_addr[NSMAX]; /* list of master servers for zone */ - int z_state; /* state bits; see below */ - u_short z_xferpid; /* xfer child pid */ -#ifdef ALLOW_UPDATES - int hasChanged; /* non-zero if zone has been updated - * since last checkpoint - */ -#endif ALLOW_UPDATES -}; - - /* zone types (z_type) */ -#define Z_PRIMARY 1 -#define Z_SECONDARY 2 -#define Z_CACHE 3 - - /* zone state bits */ -#define Z_AUTH 0x01 /* should replace z_auth */ -#define Z_NEED_XFER 0x02 /* waiting to do xfer */ -#define Z_XFER_RUNNING 0x04 /* asynch. xfer is running */ -#define Z_NEED_RELOAD 0x08 /* waiting to do reload */ -#define Z_SYSLOGGED 0x10 /* have logged timeout */ -#define Z_CHANGED 0x20 /* should replace hasChanged */ -#define Z_FOUND 0x40 /* found in boot file when reloading */ -#define Z_INCLUDE 0x80 /* set if include used in file */ -#define Z_DB_BAD 0x100 /* errors when loading file */ -#define Z_TMP_FILE 0x200 /* backup file for xfer is temporary */ -#ifdef ALLOW_UPDATES -#define Z_DYNAMIC 0x400 /* allow dynamic updates */ -#define Z_DYNADDONLY 0x800 /* dynamic mode: add new data only */ -#endif ALLOW_UPDATES - - /* 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 */ - -/* - * Structure for recording info on forwarded queries. - */ -struct qinfo { - u_short q_id; /* id of query */ - u_short q_nsid; /* id of forwarded query */ - int q_dfd; /* UDP file descriptor */ - struct sockaddr_in q_from; /* requestor's address */ - char *q_msg; /* the message */ - int q_msglen; /* len of message */ - int q_naddr; /* number of addr's in q_addr */ - int q_curaddr; /* last addr sent to */ - struct fwdinfo *q_fwd; /* last forwarder used */ - time_t q_time; /* time to retry */ - struct qinfo *q_next; /* rexmit list (sorted by time) */ - struct qinfo *q_link; /* storage list (random order) */ - struct qserv { - struct sockaddr_in ns_addr; /* addresses of NS's */ - 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 */ - } q_addr[NSMAX]; /* addresses of NS's */ - struct databuf *q_usedns[NSMAX]; /* databuf for NS that we've tried */ - int q_nusedns; - int q_cname; /* # of cnames found */ - int q_nqueries; /* # of queries required */ - char *q_cmsg; /* the cname message */ - int q_cmsglen; /* len of cname message */ - struct qstream *q_stream; /* TCP stream, null if UDP */ - int q_system; /* boolean, system query */ -}; - -#define Q_NEXTADDR(qp,n) \ - (((qp)->q_fwd == (struct fwdinfo *)0) ? \ - &(qp)->q_addr[n].ns_addr : &(qp)->q_fwd->fwdaddr) - -#define PRIMING_CACHE 42 -#define QINFO_NULL ((struct qinfo *)0) - -#ifndef XFER -extern struct qinfo *qfindid(); -extern struct qinfo *qnew(); -extern struct qinfo *retryqp; /* next query to retry */ -#endif /* XFER */ - -/* - * Return codes from ns_forw: - */ -#define FW_OK 0 -#define FW_DUP 1 -#define FW_NOSERVER 2 -#define FW_SERVFAIL 3 - -struct qstream { - int s_rfd; /* stream file descriptor */ - int s_size; /* expected amount of data to recive */ - int s_bufsize; /* amount of data recived in s_buf */ - char *s_buf; /* buffer of recived data */ - char *s_bufp; /* pointer into s_buf of recived data */ - struct qstream *s_next; /* next stream */ - struct sockaddr_in s_from; /* address query came from */ - u_long s_time; /* time stamp of last transaction */ - int s_refcnt; /* number of outstanding queries */ - u_short s_tempsize; /* temporary for size from net */ -}; - -#define QSTREAM_NULL ((struct qstream *)0) -extern struct qstream *streamq; /* stream queue */ - -struct qdatagram { - int dq_dfd; /* datagram file descriptor */ - struct qdatagram *dq_next; /* next datagram */ - struct in_addr dq_addr; /* address of interface */ -}; - -#define QDATAGRAM_NULL ((struct qdatagram *)0) -extern struct qdatagram *datagramq; /* datagram queue */ - -struct netinfo { - struct netinfo *next; - u_long net; - u_long mask; - struct in_addr my_addr; -}; - -struct fwdinfo { - struct fwdinfo *next; - struct sockaddr_in fwdaddr; -}; - -struct nets { - char *name; - long net; - struct nets *next; -}; - -/* - * Statistics Defines - */ -struct stats { - unsigned long cnt; - char *description; -}; - -/* gross count of UDP packets in and out */ -#define S_INPKTS 0 -#define S_OUTPKTS 1 -/* gross count of queries and inverse queries received */ -#define S_QUERIES 2 -#define S_IQUERIES 3 -#define S_DUPQUERIES 4 -#define S_RESPONSES 5 -#define S_DUPRESP 6 -#define S_RESPOK 7 -#define S_RESPFAIL 8 -#define S_RESPFORMERR 9 -#define S_SYSQUERIES 10 -#define S_PRIMECACHE 11 -#define S_CHECKNS 12 -#define S_BADRESPONSES 13 -#define S_MARTIANS 14 -#define S_NSTATS 15 /* Careful! */ -#ifdef STATS -extern struct stats stats[S_NSTATS]; -extern unsigned long typestats[T_ANY+1]; -#endif - -/* - * Attempt to configure for type of function returned by signal-catching - * functions (which signal and sigvec.sv_handler take a pointer to). - * This can guess for BSD; otherwise, define SIG_FN externally. - */ -#ifndef SIG_FN -#ifdef BSD -#if BSD >= 199006 -#define SIG_FN void /* signal-catching functions return void */ -#else -#define SIG_FN int /* signal-catching functions return int */ -#endif -#else /* BSD */ -#define SIG_FN void /* signal-catching functions return void */ -#endif /* BSD */ -#endif - - -#ifdef DEBUG -extern int debug; /* debug flag */ -extern FILE *ddt; /* debug file discriptor */ -#endif -#ifndef XFER -extern int ds; /* datagram socket */ -extern struct qdatagram *dqp; -extern struct timeval tt; /* place to store time */ - -extern struct itimerval ival; /* maintenance interval */ -extern struct zoneinfo *zones; /* zone information */ -extern int nzones; /* number of zones in use */ - -extern int forward_only; /* true on slave server */ -#endif /* XFER */ - -#define MAX_XFER_TIME 60 * 60 * 2 /* max seconds for an xfer */ -#define XFER_TIME_FUDGE 10 /* MAX_XFER_TIME fudge */ - -#ifndef XFER -extern int xfer_running_cnt; /* number of xfers running */ -extern int xfer_deferred_cnt; /* number of deferred xfers */ -#define MAX_XFERS_RUNNING 4 /* max value of xfer_running_cnt */ -#endif /* XFER */ |