0a5f3ef410
was removed from the kernel; Advertise the prefix with zero lifetimes rather than to remove the prefix from the prefix list to be advertised. This will help renumber a receiving host by deprecating the address derived from the old prefix. Obtained from: KAME MFC after: 2 weeks
252 lines
6.6 KiB
C
252 lines
6.6 KiB
C
/* $FreeBSD$ */
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/* $KAME: dump.c,v 1.16 2001/03/21 17:41:13 jinmei Exp $ */
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/*
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* Copyright (C) 2000 WIDE Project.
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* 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. Neither the name of the project 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 PROJECT 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 PROJECT 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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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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#include <net/if_var.h>
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#endif /* __FreeBSD__ >= 3 */
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#include <net/if_dl.h>
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#include <netinet/in.h>
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/* XXX: the following two are non-standard include files */
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#include <netinet6/in6_var.h>
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#include <netinet6/nd6.h>
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#include <arpa/inet.h>
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#include <time.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <syslog.h>
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#include <string.h>
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#include <errno.h>
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#include "rtadvd.h"
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#include "timer.h"
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#include "if.h"
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#include "dump.h"
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static FILE *fp;
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extern struct rainfo *ralist;
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static char *ether_str __P((struct sockaddr_dl *));
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static void if_dump __P((void));
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#ifdef __FreeBSD__ /* XXX: see PORTABILITY */
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#define LONGLONG "%qu"
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#else
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#define LONGLONG "%llu"
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#endif
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static char *rtpref_str[] = {
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"medium", /* 00 */
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"high", /* 01 */
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"rsv", /* 10 */
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"low" /* 11 */
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};
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static char *
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ether_str(sdl)
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struct sockaddr_dl *sdl;
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{
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static char ebuf[32];
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u_char *cp;
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if (sdl->sdl_alen && sdl->sdl_alen > 5) {
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cp = (u_char *)LLADDR(sdl);
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sprintf(ebuf, "%x:%x:%x:%x:%x:%x",
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cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
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}
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else {
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sprintf(ebuf, "NONE");
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}
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return(ebuf);
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}
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static void
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if_dump()
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{
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struct rainfo *rai;
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struct prefix *pfx;
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char prefixbuf[INET6_ADDRSTRLEN];
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int first;
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struct timeval now;
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gettimeofday(&now, NULL); /* XXX: unused in most cases */
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for (rai = ralist; rai; rai = rai->next) {
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fprintf(fp, "%s:\n", rai->ifname);
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fprintf(fp, " Status: %s\n",
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(iflist[rai->ifindex]->ifm_flags & IFF_UP) ? "UP" :
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"DOWN");
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/* control information */
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if (rai->lastsent.tv_sec) {
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/* note that ctime() appends CR by itself */
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fprintf(fp, " Last RA sent: %s",
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ctime((time_t *)&rai->lastsent.tv_sec));
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}
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if (rai->timer) {
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fprintf(fp, " Next RA will be sent: %s",
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ctime((time_t *)&rai->timer->tm.tv_sec));
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}
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else
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fprintf(fp, " RA timer is stopped");
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fprintf(fp, " waits: %d, initcount: %d\n",
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rai->waiting, rai->initcounter);
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/* statistics */
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fprintf(fp,
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" statistics: RA(out/in/inconsistent): "
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LONGLONG "/" LONGLONG "/" LONGLONG ", ",
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(unsigned long long)rai->raoutput,
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(unsigned long long)rai->rainput,
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(unsigned long long)rai->rainconsistent);
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fprintf(fp, "RS(input): " LONGLONG "\n",
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(unsigned long long)rai->rsinput);
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/* interface information */
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if (rai->advlinkopt)
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fprintf(fp, " Link-layer address: %s\n",
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ether_str(rai->sdl));
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fprintf(fp, " MTU: %d\n", rai->phymtu);
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/* Router configuration variables */
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fprintf(fp,
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" DefaultLifetime: %d, MaxAdvInterval: %d, "
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"MinAdvInterval: %d\n",
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rai->lifetime, rai->maxinterval, rai->mininterval);
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fprintf(fp, " Flags: %s%s%s, ",
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rai->managedflg ? "M" : "", rai->otherflg ? "O" : "",
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#ifdef MIP6
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rai->haflg ? "H" :
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#endif
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"");
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fprintf(fp, "Preference: %s, ",
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rtpref_str[(rai->rtpref >> 3) & 0xff]);
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fprintf(fp, "MTU: %d\n", rai->linkmtu);
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fprintf(fp, " ReachableTime: %d, RetransTimer: %d, "
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"CurHopLimit: %d\n", rai->reachabletime,
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rai->retranstimer, rai->hoplimit);
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#ifdef MIP6
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fprintf(fp, " HAPreference: %d, HALifetime: %d\n",
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rai->hapref, rai->hatime);
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#endif
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if (rai->clockskew)
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fprintf(fp, " Clock skew: %ldsec\n",
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rai->clockskew);
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for (first = 1, pfx = rai->prefix.next; pfx != &rai->prefix;
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pfx = pfx->next) {
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if (first) {
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fprintf(fp, " Prefixes:\n");
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first = 0;
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}
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fprintf(fp, " %s/%d(",
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inet_ntop(AF_INET6, &pfx->prefix,
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prefixbuf, sizeof(prefixbuf)),
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pfx->prefixlen);
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switch(pfx->origin) {
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case PREFIX_FROM_KERNEL:
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fprintf(fp, "KERNEL, ");
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break;
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case PREFIX_FROM_CONFIG:
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fprintf(fp, "CONFIG, ");
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break;
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case PREFIX_FROM_DYNAMIC:
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fprintf(fp, "DYNAMIC, ");
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break;
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}
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if (pfx->validlifetime == ND6_INFINITE_LIFETIME)
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fprintf(fp, "vltime: infinity");
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else
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fprintf(fp, "vltime: %ld",
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(long)pfx->validlifetime);
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if (pfx->vltimeexpire != 0)
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fprintf(fp, "(decr,expire %ld), ", (long)
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pfx->vltimeexpire > now.tv_sec ?
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pfx->vltimeexpire - now.tv_sec : 0);
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else
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fprintf(fp, ", ");
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if (pfx->preflifetime == ND6_INFINITE_LIFETIME)
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fprintf(fp, "pltime: infinity");
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else
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fprintf(fp, "pltime: %ld",
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(long)pfx->preflifetime);
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if (pfx->pltimeexpire != 0)
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fprintf(fp, "(decr,expire %ld), ", (long)
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pfx->pltimeexpire > now.tv_sec ?
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pfx->pltimeexpire - now.tv_sec : 0);
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else
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fprintf(fp, ", ");
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fprintf(fp, "flags: %s%s%s",
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pfx->onlinkflg ? "L" : "",
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pfx->autoconfflg ? "A" : "",
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#ifdef MIP6
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pfx->routeraddr ? "R" :
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#endif
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"");
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if (pfx->timer) {
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struct timeval *rest;
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rest = rtadvd_timer_rest(pfx->timer);
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if (rest) { /* XXX: what if not? */
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fprintf(fp, ", expire in: %ld",
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(long)rest->tv_sec);
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}
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}
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fprintf(fp, ")\n");
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}
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}
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}
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void
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rtadvd_dump_file(dumpfile)
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char *dumpfile;
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{
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if ((fp = fopen(dumpfile, "w")) == NULL) {
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syslog(LOG_WARNING, "<%s> open a dump file(%s)",
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__FUNCTION__, dumpfile);
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return;
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}
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if_dump();
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fclose(fp);
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}
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