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/socket.h>
  36 #include <sys/queue.h>
  37
  38 #include <net/if.h>
  39 #include <netinet/in.h>
  40 #include <netinet/icmp6.h>
  41 #include <arpa/inet.h>
  42
  43 #include <syslog.h>
  44 #include <time.h>
  45 #include <stdio.h>
  46 #include <string.h>
  47 #include <errno.h>
  48
  49 #include "rtsold.h"
  50
  51 static FILE *fp;
  52
  53 static void dump_interface_status(void);
  54 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"};
  55
  56 static void
  57 dump_interface_status(void)
  58 {
  59         struct ifinfo *ifi;
  60         struct rainfo *rai;
  61         struct ra_opt *rao;
  62         struct timespec now;
  63         char ntopbuf[INET6_ADDRSTRLEN];
  64
  65         clock_gettime(CLOCK_MONOTONIC_FAST, &now);
  66
  67         TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) {
  68                 fprintf(fp, "Interface %s\n", ifi->ifname);
  69                 fprintf(fp, "  probe interval: ");
  70                 if (ifi->probeinterval) {
  71                         fprintf(fp, "%d\n", ifi->probeinterval);
  72                         fprintf(fp, "  probe timer: %d\n", ifi->probetimer);
  73                 } else {
  74                         fprintf(fp, "infinity\n");
  75                         fprintf(fp, "  no probe timer\n");
  76                 }
  77                 fprintf(fp, "  interface status: %s\n",
  78                     ifi->active > 0 ? "active" : "inactive");
  79                 fprintf(fp, "  other config: %s\n",
  80                     ifi->otherconfig ? "on" : "off");
  81                 fprintf(fp, "  rtsold status: %s\n", ifstatstr[ifi->state]);
  82                 fprintf(fp, "  carrier detection: %s\n",
  83                     ifi->mediareqok ? "available" : "unavailable");
  84                 fprintf(fp, "  probes: %d, dadcount = %d\n",
  85                     ifi->probes, ifi->dadcount);
  86                 if (ifi->timer.tv_sec == tm_max.tv_sec &&
  87                     ifi->timer.tv_nsec == tm_max.tv_nsec)
  88                         fprintf(fp, "  no timer\n");
  89                 else {
  90                         fprintf(fp, "  timer: interval=%d:%d, expire=%s\n",
  91                             (int)ifi->timer.tv_sec,
  92                             (int)ifi->timer.tv_nsec / 1000,
  93                             (ifi->expire.tv_sec < now.tv_sec) ? "expired"
  94                             : sec2str(&ifi->expire));
  95                 }
  96                 fprintf(fp, "  number of valid RAs: %d\n", ifi->racnt);
  97
  98                 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) {
  99                         fprintf(fp, "   RA from %s\n",
 100                             inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr,
 101                                 ntopbuf, sizeof(ntopbuf)));
 102                         TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) {
 103                                 fprintf(fp, "    option: ");
 104                                 switch (rao->rao_type) {
 105                                 case ND_OPT_RDNSS:
 106                                         fprintf(fp, "RDNSS: %s (expire: %s)\n",
 107                                             (char *)rao->rao_msg,
 108                                             sec2str(&rao->rao_expire));
 109                                         break;
 110                                 case ND_OPT_DNSSL:
 111                                         fprintf(fp, "DNSSL: %s (expire: %s)\n",
 112                                             (char *)rao->rao_msg,
 113                                             sec2str(&rao->rao_expire));
 114                                         break;
 115                                 default:
 116                                         break;
 117                                 }
 118                         }
 119                         fprintf(fp, "\n");
 120                 }
 121         }
 122 }
 123
 124 void
 125 rtsold_dump_file(const char *dumpfile)
 126 {
 127         if ((fp = fopen(dumpfile, "w")) == NULL) {
 128                 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s",
 129                     dumpfile, strerror(errno));
 130                 return;
 131         }
 132         dump_interface_status();
 133         fclose(fp);
 134 }
 135
 136 const char *
 137 sec2str(const struct timespec *total)
 138 {
 139         static char result[256];
 140         int days, hours, mins, secs;
 141         int first = 1;
 142         char *p = result;
 143         char *ep = &result[sizeof(result)];
 144         int n;
 145         struct timespec now;
 146         time_t tsec;
 147
 148         clock_gettime(CLOCK_MONOTONIC_FAST, &now);
 149         tsec  = total->tv_sec;
 150         tsec += total->tv_nsec / 1000 / 1000000;
 151         tsec -= now.tv_sec;
 152         tsec -= now.tv_nsec / 1000 / 1000000;
 153
 154         days = tsec / 3600 / 24;
 155         hours = (tsec / 3600) % 24;
 156         mins = (tsec / 60) % 60;
 157         secs = tsec % 60;
 158
 159         if (days) {
 160                 first = 0;
 161                 n = snprintf(p, ep - p, "%dd", days);
 162                 if (n < 0 || n >= ep - p)
 163                         return "?";
 164                 p += n;
 165         }
 166         if (!first || hours) {
 167                 first = 0;
 168                 n = snprintf(p, ep - p, "%dh", hours);
 169                 if (n < 0 || n >= ep - p)
 170                         return "?";
 171                 p += n;
 172         }
 173         if (!first || mins) {
 174                 first = 0;
 175                 n = snprintf(p, ep - p, "%dm", mins);
 176                 if (n < 0 || n >= ep - p)
 177                         return "?";
 178                 p += n;
 179         }
 180         snprintf(p, ep - p, "%ds", secs);
 181
 182         return (result);
 183 }