/* $NetBSD: dump.c,v 1.18 2021/03/23 18:16:53 christos Exp $ */
/* $KAME: dump.c,v 1.34 2004/06/14 05:35:59 itojun Exp $ */
/*
* Copyright (C) 2000 WIDE Project.
* 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/if_dl.h>
#ifdef __FreeBSD__
#include <net/if_var.h>
#endif
#include <netinet/in.h>
/* XXX: the following two are non-standard include files */
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#include <arpa/inet.h>
#include <time.h>
#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>
#include <string.h>
#include <errno.h>
#include <netdb.h>
#include "rtadvd.h"
#include "timer.h"
#include "logit.h"
#include "if.h"
#include "dump.h"
#include "prog_ops.h"
static FILE *fp;
static char *ether_str(struct sockaddr_dl *);
static void if_dump(void);
static const char *rtpref_str[] = {
"medium", /* 00 */
"high", /* 01 */
"rsv", /* 10 */
"low" /* 11 */
};
static char *
ether_str(struct sockaddr_dl *sdl)
{
static char hbuf[NI_MAXHOST];
if (sdl->sdl_alen) {
if (getnameinfo((struct sockaddr *)sdl, sdl->sdl_len,
hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
snprintf(hbuf, sizeof(hbuf), "<invalid>");
} else
snprintf(hbuf, sizeof(hbuf), "NONE");
return(hbuf);
}
static void
if_dump(void)
{
struct rainfo *rai;
struct prefix *pfx;
struct rtinfo *rti;
struct rdnss *rdns;
struct rdnss_addr *rdnsa;
struct dnssl *dnsl;
struct dnssl_domain *dnsd;
char *p, len;
char prefixbuf[INET6_ADDRSTRLEN];
struct timespec now;
prog_clock_gettime(CLOCK_MONOTONIC, &now); /* XXX: unused in most cases */
TAILQ_FOREACH(rai, &ralist, next) {
fprintf(fp, "%s:\n", rai->ifname);
fprintf(fp, " Status: %s\n",
(rai->ifflags & IFF_UP) ? "UP" : "DOWN");
/* control information */
if (rai->lastsent.tv_sec) {
/* note that ctime() appends CR by itself */
fprintf(fp, " Last RA sent: %s",
ctime(&rai->lastsent.tv_sec));
}
if (rai->timer) {
fprintf(fp, " Next RA will be sent: %s",
ctime(&rai->timer->tm.tv_sec));
}
else
fprintf(fp, " RA timer is stopped");
fprintf(fp, " waits: %d, initcount: %d\n",
rai->waiting, rai->initcounter);
/* statistics */
fprintf(fp, " statistics: RA(out/in/inconsistent): "
"%llu/%llu/%llu, ",
(unsigned long long)rai->raoutput,
(unsigned long long)rai->rainput,
(unsigned long long)rai->rainconsistent);
fprintf(fp, "RS(input): %llu\n",
(unsigned long long)rai->rsinput);
/* interface information */
if (rai->advlinkopt)
fprintf(fp, " Link-layer address: %s\n",
ether_str(rai->sdl));
fprintf(fp, " MTU: %u\n", rai->phymtu);
/* Router configuration variables */
fprintf(fp, " DefaultLifetime: %u, MaxAdvInterval: %u, "
"MinAdvInterval: %u\n", rai->lifetime, rai->maxinterval,
rai->mininterval);
fprintf(fp, " Flags: %s%s%s, ",
rai->managedflg ? "M" : "", rai->otherflg ? "O" : "",
"");
fprintf(fp, "Preference: %s, ",
rtpref_str[(rai->rtpref >> 3) & 0xff]);
fprintf(fp, "MTU: %u\n", rai->linkmtu);
fprintf(fp, " ReachableTime: %u, RetransTimer: %u, "
"CurHopLimit: %u\n", rai->reachabletime,
rai->retranstimer, rai->hoplimit);
if (rai->clockskew)
fprintf(fp, " Clock skew: %usec\n",
rai->clockskew);
TAILQ_FOREACH(pfx, &rai->prefix, next) {
if (pfx == TAILQ_FIRST(&rai->prefix))
fprintf(fp, " Prefixes:\n");
fprintf(fp, " %s/%d(",
inet_ntop(AF_INET6, &pfx->prefix, prefixbuf,
sizeof(prefixbuf)), pfx->prefixlen);
switch (pfx->origin) {
case PREFIX_FROM_KERNEL:
fprintf(fp, "KERNEL, ");
break;
case PREFIX_FROM_CONFIG:
fprintf(fp, "CONFIG, ");
break;
case PREFIX_FROM_DYNAMIC:
fprintf(fp, "DYNAMIC, ");
break;
}
if (pfx->validlifetime == ND6_INFINITE_LIFETIME)
fprintf(fp, "vltime: infinity");
else
fprintf(fp, "vltime: %u", pfx->validlifetime);
if (pfx->vltimeexpire != 0)
fprintf(fp, "(decr,expire %lld), ", (long long)
(pfx->vltimeexpire > now.tv_sec ?
pfx->vltimeexpire - now.tv_sec : 0));
else
fprintf(fp, ", ");
if (pfx->preflifetime == ND6_INFINITE_LIFETIME)
fprintf(fp, "pltime: infinity");
else
fprintf(fp, "pltime: %u", pfx->preflifetime);
if (pfx->pltimeexpire != 0)
fprintf(fp, "(decr,expire %lld), ", (long long)
(pfx->pltimeexpire > now.tv_sec ?
pfx->pltimeexpire - now.tv_sec : 0));
else
fprintf(fp, ", ");
fprintf(fp, "flags: %s%s%s",
pfx->onlinkflg ? "L" : "",
pfx->autoconfflg ? "A" : "",
"");
if (pfx->timer) {
struct timespec *rest;
rest = rtadvd_timer_rest(pfx->timer);
if (rest) { /* XXX: what if not? */
fprintf(fp, ", expire in: %ld",
(long)rest->tv_sec);
}
}
fprintf(fp, ")\n");
}
TAILQ_FOREACH(rti, &rai->route, next) {
if (rti == TAILQ_FIRST(&rai->route))
fprintf(fp, " Route Information:\n");
fprintf(fp, " %s/%d (",
inet_ntop(AF_INET6, &rti->prefix,
prefixbuf, sizeof(prefixbuf)),
rti->prefixlen);
fprintf(fp, "preference: %s, ",
rtpref_str[0xff & (rti->rtpref >> 3)]);
if (rti->ltime == ND6_INFINITE_LIFETIME)
fprintf(fp, "lifetime: infinity");
else
fprintf(fp, "lifetime: %ld", (long)rti->ltime);
fprintf(fp, ")\n");
}
TAILQ_FOREACH(rdns, &rai->rdnss, next) {
fprintf(fp, " Recursive DNS Servers:\n");
if (rdns->lifetime == ND6_INFINITE_LIFETIME)
fprintf(fp, " lifetime: infinity\n");
else
fprintf(fp, " lifetime: %ld\n",
(long)rdns->lifetime);
TAILQ_FOREACH(rdnsa, &rdns->list, next)
fprintf(fp, " %s\n",
inet_ntop(AF_INET6, &rdnsa->addr,
prefixbuf, sizeof(prefixbuf)));
}
TAILQ_FOREACH(dnsl, &rai->dnssl, next) {
fprintf(fp, " DNS Search List:\n");
if (dnsl->lifetime == ND6_INFINITE_LIFETIME)
fprintf(fp, " lifetime: infinity\n");
else
fprintf(fp, " lifetime: %ld\n",
(long)dnsl->lifetime);
TAILQ_FOREACH(dnsd, &dnsl->list, next) {
fprintf(fp, " ");
for (p = dnsd->domain, len = *p++;
len != 0;
len = *p++)
{
if (p != dnsd->domain)
fputc('.', fp);
while(len-- != 0)
fputc(*p++, fp);
}
fputc('\n', fp);
}
}
}
}
void
rtadvd_dump_file(const char *dumpfile)
{
logit(LOG_DEBUG, "%s: dump current status to %s", __func__,
dumpfile);
if ((fp = fopen(dumpfile, "w")) == NULL) {
logit(LOG_WARNING, "%s: open a dump file(%s): %m",
__func__, dumpfile);
return;
}
if_dump();
fclose(fp);
}
