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/* $OpenBSD: dump.c,v 1.15 2013/04/21 19:46:31 deraadt Exp $ */
/* $KAME: dump.c,v 1.10 2002/05/31 10:10:03 itojun Exp $ */
/*
* 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.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/icmp6.h>
#include <syslog.h>
#include <time.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "rtsold.h"
static FILE *fp;
extern struct ifinfo *iflist;
static void dump_interface_status(void);
static char *sec2str(time_t);
char *ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"};
static void
dump_interface_status(void)
{
struct ifinfo *ifinfo;
struct timeval now;
gettimeofday(&now, NULL);
for (ifinfo = iflist; ifinfo; ifinfo = ifinfo->next) {
fprintf(fp, "Interface %s\n", ifinfo->ifname);
fprintf(fp, " probe interval: ");
if (ifinfo->probeinterval) {
fprintf(fp, "%d\n", ifinfo->probeinterval);
fprintf(fp, " probe timer: %d\n", ifinfo->probetimer);
} else {
fprintf(fp, "infinity\n");
fprintf(fp, " no probe timer\n");
}
fprintf(fp, " interface status: %s\n",
ifinfo->active > 0 ? "active" : "inactive");
#ifndef SMALL
fprintf(fp, " other config: %s\n",
ifinfo->otherconfig ? "on" : "off");
#endif
fprintf(fp, " rtsold status: %s\n", ifstatstr[ifinfo->state]);
fprintf(fp, " carrier detection: %s\n",
ifinfo->mediareqok ? "available" : "unavailable");
fprintf(fp, " probes: %d, dadcount = %d\n",
ifinfo->probes, ifinfo->dadcount);
if (ifinfo->stoptimer)
fprintf(fp, " no timer\n");
else {
fprintf(fp, " timer: interval=%lld:%ld, expire=%s\n",
(long long)ifinfo->timer.tv_sec,
ifinfo->timer.tv_usec,
(ifinfo->expire.tv_sec < now.tv_sec) ? "expired"
: sec2str(ifinfo->expire.tv_sec - now.tv_sec));
}
fprintf(fp, " number of valid RAs: %d\n", ifinfo->racnt);
}
}
void
rtsold_dump_file(char *dumpfile)
{
if ((fp = fopen(dumpfile, "w")) == NULL) {
warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s",
dumpfile, strerror(errno));
return;
}
dump_interface_status();
fclose(fp);
}
static char *
sec2str(time_t total)
{
static char result[256];
time_t days;
int hours, mins, secs;
int first = 1;
char *p = result;
char *ep = &result[sizeof(result)];
int n;
days = total / 3600 / 24;
hours = (total / 3600) % 24;
mins = (total / 60) % 60;
secs = total % 60;
if (days) {
first = 0;
n = snprintf(p, ep - p, "%lldd", (long long)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);
}
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