281 lines
7.9 KiB
C
281 lines
7.9 KiB
C
/* $NetBSD: dump.c,v 1.17 2018/11/16 08:57:10 ozaki-r Exp $ */
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/* $KAME: dump.c,v 1.34 2004/06/14 05:35:59 itojun 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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#include <net/if_dl.h>
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#ifdef __FreeBSD__
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#include <net/if_var.h>
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#endif
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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 <netdb.h>
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#include "rtadvd.h"
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#include "timer.h"
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#include "logit.h"
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#include "if.h"
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#include "dump.h"
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#include "prog_ops.h"
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static FILE *fp;
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static char *ether_str(struct sockaddr_dl *);
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static void if_dump(void);
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static const 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(struct sockaddr_dl *sdl)
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{
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static char hbuf[NI_MAXHOST];
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if (sdl->sdl_alen) {
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if (getnameinfo((struct sockaddr *)sdl, sdl->sdl_len,
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hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
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snprintf(hbuf, sizeof(hbuf), "<invalid>");
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} else
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snprintf(hbuf, sizeof(hbuf), "NONE");
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return(hbuf);
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}
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static void
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if_dump(void)
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{
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struct rainfo *rai;
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struct prefix *pfx;
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struct rtinfo *rti;
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struct rdnss *rdns;
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struct rdnss_addr *rdnsa;
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struct dnssl *dnsl;
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struct dnssl_domain *dnsd;
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char *p, len;
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char prefixbuf[INET6_ADDRSTRLEN];
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struct timespec now;
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prog_clock_gettime(CLOCK_MONOTONIC, &now); /* XXX: unused in most cases */
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TAILQ_FOREACH(rai, &ralist, next) {
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fprintf(fp, "%s:\n", rai->ifname);
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fprintf(fp, " Status: %s\n",
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(rai->ifflags & IFF_UP) ? "UP" : "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(&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(&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, " statistics: RA(out/in/inconsistent): "
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"%llu/%llu/%llu, ",
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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): %llu\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: %u\n", rai->phymtu);
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/* Router configuration variables */
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fprintf(fp, " DefaultLifetime: %u, MaxAdvInterval: %u, "
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"MinAdvInterval: %u\n", rai->lifetime, rai->maxinterval,
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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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"");
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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: %u\n", rai->linkmtu);
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fprintf(fp, " ReachableTime: %u, RetransTimer: %u, "
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"CurHopLimit: %u\n", rai->reachabletime,
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rai->retranstimer, rai->hoplimit);
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if (rai->clockskew)
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fprintf(fp, " Clock skew: %usec\n",
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rai->clockskew);
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TAILQ_FOREACH(pfx, &rai->prefix, next) {
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if (pfx == TAILQ_FIRST(&rai->prefix))
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fprintf(fp, " Prefixes:\n");
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fprintf(fp, " %s/%d(",
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inet_ntop(AF_INET6, &pfx->prefix, prefixbuf,
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sizeof(prefixbuf)), 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: %u", pfx->validlifetime);
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if (pfx->vltimeexpire != 0)
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fprintf(fp, "(decr,expire %lld), ", (long 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: %u", pfx->preflifetime);
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if (pfx->pltimeexpire != 0)
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fprintf(fp, "(decr,expire %lld), ", (long 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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"");
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if (pfx->timer) {
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struct timespec *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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TAILQ_FOREACH(rti, &rai->route, next) {
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if (rti == TAILQ_FIRST(&rai->route))
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fprintf(fp, " Route Information:\n");
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fprintf(fp, " %s/%d (",
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inet_ntop(AF_INET6, &rti->prefix,
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prefixbuf, sizeof(prefixbuf)),
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rti->prefixlen);
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fprintf(fp, "preference: %s, ",
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rtpref_str[0xff & (rti->rtpref >> 3)]);
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if (rti->ltime == ND6_INFINITE_LIFETIME)
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fprintf(fp, "lifetime: infinity");
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else
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fprintf(fp, "lifetime: %ld", (long)rti->ltime);
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fprintf(fp, ")\n");
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}
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TAILQ_FOREACH(rdns, &rai->rdnss, next) {
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fprintf(fp, " Recursive DNS Servers:\n");
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if (rdns->lifetime == ND6_INFINITE_LIFETIME)
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fprintf(fp, " lifetime: infinity\n");
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else
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fprintf(fp, " lifetime: %ld\n",
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(long)rdns->lifetime);
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TAILQ_FOREACH(rdnsa, &rdns->list, next)
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fprintf(fp, " %s\n",
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inet_ntop(AF_INET6, &rdnsa->addr,
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prefixbuf, sizeof(prefixbuf)));
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}
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TAILQ_FOREACH(dnsl, &rai->dnssl, next) {
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fprintf(fp, " DNS Search List:\n");
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if (dnsl->lifetime == ND6_INFINITE_LIFETIME)
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fprintf(fp, " lifetime: infinity\n");
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else
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fprintf(fp, " lifetime: %ld\n",
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(long)dnsl->lifetime);
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TAILQ_FOREACH(dnsd, &dnsl->list, next) {
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fprintf(fp, " ");
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for (p = dnsd->domain, len = *p++;
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len != 0;
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len = *p++)
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{
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if (p != dnsd->domain)
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fputc('.', fp);
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while(len-- != 0)
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fputc(*p++, fp);
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}
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fputc('\n', fp);
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}
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}
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}
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}
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void
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rtadvd_dump_file(const char *dumpfile)
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{
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logit(LOG_DEBUG, "<%s> dump current status to %s", __func__,
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dumpfile);
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if ((fp = fopen(dumpfile, "w")) == NULL) {
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logit(LOG_WARNING, "<%s> open a dump file(%s): %m",
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__func__, 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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