usr.sbin/rtsold/dump.c

   1 /*      $KAME: dump.c,v 1.13 2003/10/05 00:09:36 itojun Exp $   */
   2
   3 /*
   4  * Copyright (C) 1999 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * $FreeBSD$
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/time.h>
  36 #include <sys/socket.h>
  37 #include <sys/queue.h>
  38
  39 #include <net/if.h>
  40 #include <netinet/in.h>
  41 #include <netinet/icmp6.h>
  42 #include <arpa/inet.h>
  43
  44 #include <syslog.h>
  45 #include <time.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <errno.h>
  49
  50 #include "rtsold.h"
  51
  52 static FILE *fp;
  53
  54 extern struct ifinfo *iflist;
  55
  56 static void dump_interface_status(void);
  57 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"};
  58
  59 static void
  60 dump_interface_status(void)
  61 {
  62         struct ifinfo *ifi;
  63         struct rainfo *rai;
  64         struct ra_opt *rao;
  65         struct timeval now;
  66         char ntopbuf[INET6_ADDRSTRLEN];
  67
  68         gettimeofday(&now, NULL);
  69
  70         TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) {
  71                 fprintf(fp, "Interface %s\n", ifi->ifname);
  72                 fprintf(fp, "  probe interval: ");
  73                 if (ifi->probeinterval) {
  74                         fprintf(fp, "%d\n", ifi->probeinterval);
  75                         fprintf(fp, "  probe timer: %d\n", ifi->probetimer);
  76                 } else {
  77                         fprintf(fp, "infinity\n");
  78                         fprintf(fp, "  no probe timer\n");
  79                 }
  80                 fprintf(fp, "  interface status: %s\n",
  81                     ifi->active > 0 ? "active" : "inactive");
  82                 fprintf(fp, "  other config: %s\n",
  83                     ifi->otherconfig ? "on" : "off");
  84                 fprintf(fp, "  rtsold status: %s\n", ifstatstr[ifi->state]);
  85                 fprintf(fp, "  carrier detection: %s\n",
  86                     ifi->mediareqok ? "available" : "unavailable");
  87                 fprintf(fp, "  probes: %d, dadcount = %d\n",
  88                     ifi->probes, ifi->dadcount);
  89                 if (ifi->timer.tv_sec == tm_max.tv_sec &&
  90                     ifi->timer.tv_usec == tm_max.tv_usec)
  91                         fprintf(fp, "  no timer\n");
  92                 else {
  93                         fprintf(fp, "  timer: interval=%d:%d, expire=%s\n",
  94                             (int)ifi->timer.tv_sec,
  95                             (int)ifi->timer.tv_usec,
  96                             (ifi->expire.tv_sec < now.tv_sec) ? "expired"
  97                             : sec2str(&ifi->expire));
  98                 }
  99                 fprintf(fp, "  number of valid RAs: %d\n", ifi->racnt);
 100
 101                 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) {
 102                         fprintf(fp, "   RA from %s\n",
 103                             inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr,
 104                                 ntopbuf, sizeof(ntopbuf)));
 105                         TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) {
 106                                 fprintf(fp, "    option: ");
 107                                 switch (rao->rao_type) {
 108                                 case ND_OPT_RDNSS:
 109                                         fprintf(fp, "RDNSS: %s (expire: %s)\n",
 110                                             (char *)rao->rao_msg,
 111                                             sec2str(&rao->rao_expire));
 112                                         break;
 113                                 case ND_OPT_DNSSL:
 114                                         fprintf(fp, "DNSSL: %s (expire: %s)\n",
 115                                             (char *)rao->rao_msg,
 116                                             sec2str(&rao->rao_expire));
 117                                         break;
 118                                 default:
 119                                         break;
 120                                 }
 121                         }
 122                         fprintf(fp, "\n");
 123                 }
 124         }
 125 }
 126
 127 void
 128 rtsold_dump_file(const char *dumpfile)
 129 {
 130         if ((fp = fopen(dumpfile, "w")) == NULL) {
 131                 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s",
 132                     dumpfile, strerror(errno));
 133                 return;
 134         }
 135         dump_interface_status();
 136         fclose(fp);
 137 }
 138
 139 const char *
 140 sec2str(const struct timeval *total)
 141 {
 142         static char result[256];
 143         int days, hours, mins, secs;
 144         int first = 1;
 145         char *p = result;
 146         char *ep = &result[sizeof(result)];
 147         int n;
 148         struct timeval now;
 149         time_t tsec;
 150
 151         gettimeofday(&now, NULL);
 152         tsec  = total->tv_sec;
 153         tsec += total->tv_usec / 1000000;
 154         tsec -= now.tv_sec;
 155         tsec -= now.tv_usec / 1000000;
 156
 157         days = tsec / 3600 / 24;
 158         hours = (tsec / 3600) % 24;
 159         mins = (tsec / 60) % 60;
 160         secs = tsec % 60;
 161
 162         if (days) {
 163                 first = 0;
 164                 n = snprintf(p, ep - p, "%dd", days);
 165                 if (n < 0 || n >= ep - p)
 166                         return "?";
 167                 p += n;
 168         }
 169         if (!first || hours) {
 170                 first = 0;
 171                 n = snprintf(p, ep - p, "%dh", hours);
 172                 if (n < 0 || n >= ep - p)
 173                         return "?";
 174                 p += n;
 175         }
 176         if (!first || mins) {
 177                 first = 0;
 178                 n = snprintf(p, ep - p, "%dm", mins);
 179                 if (n < 0 || n >= ep - p)
 180                         return "?";
 181                 p += n;
 182         }
 183         snprintf(p, ep - p, "%ds", secs);
 184
 185         return (result);
 186 }