/* $KAME: dump.c,v 1.13 2003/10/05 00:09:36 itojun Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (C) 1999 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.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/capsicum.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/icmp6.h>
#include <arpa/inet.h>
#include <capsicum_helpers.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include "rtsold.h"
static const char * const ifstatstr[] =
{ "IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE" };
void
rtsold_dump(FILE *fp)
{
struct ifinfo *ifi;
struct rainfo *rai;
struct ra_opt *rao;
struct timespec now;
char ntopbuf[INET6_ADDRSTRLEN];
if (fseek(fp, 0, SEEK_SET) != 0) {
warnmsg(LOG_ERR, __func__, "fseek(): %s", strerror(errno));
return;
}
(void)ftruncate(fileno(fp), 0);
(void)clock_gettime(CLOCK_MONOTONIC_FAST, &now);
TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) {
fprintf(fp, "Interface %s\n", ifi->ifname);
fprintf(fp, " probe interval: ");
if (ifi->probeinterval) {
fprintf(fp, "%d\n", ifi->probeinterval);
fprintf(fp, " probe timer: %d\n", ifi->probetimer);
} else {
fprintf(fp, "infinity\n");
fprintf(fp, " no probe timer\n");
}
fprintf(fp, " interface status: %s\n",
ifi->active > 0 ? "active" : "inactive");
fprintf(fp, " managed config: %s\n",
ifi->managedconfig ? "on" : "off");
fprintf(fp, " other config: %s\n",
ifi->otherconfig ? "on" : "off");
fprintf(fp, " rtsold status: %s\n", ifstatstr[ifi->state]);
fprintf(fp, " carrier detection: %s\n",
ifi->mediareqok ? "available" : "unavailable");
fprintf(fp, " probes: %d, dadcount = %d\n",
ifi->probes, ifi->dadcount);
if (ifi->timer.tv_sec == tm_max.tv_sec &&
ifi->timer.tv_nsec == tm_max.tv_nsec)
fprintf(fp, " no timer\n");
else {
fprintf(fp, " timer: interval=%d:%d, expire=%s\n",
(int)ifi->timer.tv_sec,
(int)ifi->timer.tv_nsec / 1000,
(ifi->expire.tv_sec < now.tv_sec) ? "expired"
: sec2str(&ifi->expire));
}
fprintf(fp, " number of valid RAs: %d\n", ifi->racnt);
TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) {
fprintf(fp, " RA from %s\n",
inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr,
ntopbuf, sizeof(ntopbuf)));
TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) {
fprintf(fp, " option: ");
switch (rao->rao_type) {
case ND_OPT_RDNSS:
fprintf(fp, "RDNSS: %s (expire: %s)\n",
(char *)rao->rao_msg,
sec2str(&rao->rao_expire));
break;
case ND_OPT_DNSSL:
fprintf(fp, "DNSSL: %s (expire: %s)\n",
(char *)rao->rao_msg,
sec2str(&rao->rao_expire));
break;
default:
break;
}
}
fprintf(fp, "\n");
}
}
fflush(fp);
}
FILE *
rtsold_init_dumpfile(const char *dumpfile)
{
cap_rights_t rights;
FILE *fp;
if ((fp = fopen(dumpfile, "w")) == NULL) {
warnmsg(LOG_WARNING, __func__, "opening a dump file(%s): %s",
dumpfile, strerror(errno));
return (NULL);
}
cap_rights_init(&rights, CAP_FSTAT, CAP_FTRUNCATE, CAP_SEEK, CAP_WRITE);
if (caph_rights_limit(fileno(fp), &rights) != 0) {
warnmsg(LOG_WARNING, __func__, "caph_rights_limit(%s): %s",
dumpfile, strerror(errno));
(void)fclose(fp);
return (NULL);
}
return (fp);
}
const char *
sec2str(const struct timespec *total)
{
static char result[256];
int days, hours, mins, secs;
int first = 1;
char *p = result;
char *ep = &result[sizeof(result)];
int n;
struct timespec now;
time_t tsec;
clock_gettime(CLOCK_MONOTONIC_FAST, &now);
tsec = total->tv_sec;
tsec += total->tv_nsec / 1000 / 1000000;
tsec -= now.tv_sec;
tsec -= now.tv_nsec / 1000 / 1000000;
days = tsec / 3600 / 24;
hours = (tsec / 3600) % 24;
mins = (tsec / 60) % 60;
secs = tsec % 60;
if (days) {
first = 0;
n = snprintf(p, ep - p, "%dd", days);
if (n < 0 || n >= ep - p)
return "?";
p += n;
}
if (!first || hours) {
first = 0;
n = snprintf(p, ep - p, "%dh", hours);
if (n < 0 || n >= ep - p)
return "?";
p += n;
}
if (!first || mins) {
first = 0;
n = snprintf(p, ep - p, "%dm", mins);
if (n < 0 || n >= ep - p)
return "?";
p += n;
}
snprintf(p, ep - p, "%ds", secs);
return (result);
}
