usr.sbin/rtsold/dump.c

   1 /*      $KAME: dump.c,v 1.13 2003/10/05 00:09:36 itojun Exp $   */
   2
   3 /*-
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  *
   6  * Copyright (C) 1999 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * $FreeBSD$
  34  */
  35
  36 #include <sys/types.h>
  37 #include <sys/socket.h>
  38 #include <sys/queue.h>
  39
  40 #include <net/if.h>
  41 #include <netinet/in.h>
  42 #include <netinet/icmp6.h>
  43 #include <arpa/inet.h>
  44
  45 #include <syslog.h>
  46 #include <time.h>
  47 #include <stdio.h>
  48 #include <string.h>
  49 #include <errno.h>
  50
  51 #include "rtsold.h"
  52
  53 static FILE *fp;
  54
  55 static void dump_interface_status(void);
  56 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"};
  57
  58 static void
  59 dump_interface_status(void)
  60 {
  61         struct ifinfo *ifi;
  62         struct rainfo *rai;
  63         struct ra_opt *rao;
  64         struct timespec now;
  65         char ntopbuf[INET6_ADDRSTRLEN];
  66
  67         clock_gettime(CLOCK_MONOTONIC_FAST, &now);
  68
  69         TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) {
  70                 fprintf(fp, "Interface %s\n", ifi->ifname);
  71                 fprintf(fp, "  probe interval: ");
  72                 if (ifi->probeinterval) {
  73                         fprintf(fp, "%d\n", ifi->probeinterval);
  74                         fprintf(fp, "  probe timer: %d\n", ifi->probetimer);
  75                 } else {
  76                         fprintf(fp, "infinity\n");
  77                         fprintf(fp, "  no probe timer\n");
  78                 }
  79                 fprintf(fp, "  interface status: %s\n",
  80                     ifi->active > 0 ? "active" : "inactive");
  81                 fprintf(fp, "  other config: %s\n",
  82                     ifi->otherconfig ? "on" : "off");
  83                 fprintf(fp, "  rtsold status: %s\n", ifstatstr[ifi->state]);
  84                 fprintf(fp, "  carrier detection: %s\n",
  85                     ifi->mediareqok ? "available" : "unavailable");
  86                 fprintf(fp, "  probes: %d, dadcount = %d\n",
  87                     ifi->probes, ifi->dadcount);
  88                 if (ifi->timer.tv_sec == tm_max.tv_sec &&
  89                     ifi->timer.tv_nsec == tm_max.tv_nsec)
  90                         fprintf(fp, "  no timer\n");
  91                 else {
  92                         fprintf(fp, "  timer: interval=%d:%d, expire=%s\n",
  93                             (int)ifi->timer.tv_sec,
  94                             (int)ifi->timer.tv_nsec / 1000,
  95                             (ifi->expire.tv_sec < now.tv_sec) ? "expired"
  96                             : sec2str(&ifi->expire));
  97                 }
  98                 fprintf(fp, "  number of valid RAs: %d\n", ifi->racnt);
  99
 100                 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) {
 101                         fprintf(fp, "   RA from %s\n",
 102                             inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr,
 103                                 ntopbuf, sizeof(ntopbuf)));
 104                         TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) {
 105                                 fprintf(fp, "    option: ");
 106                                 switch (rao->rao_type) {
 107                                 case ND_OPT_RDNSS:
 108                                         fprintf(fp, "RDNSS: %s (expire: %s)\n",
 109                                             (char *)rao->rao_msg,
 110                                             sec2str(&rao->rao_expire));
 111                                         break;
 112                                 case ND_OPT_DNSSL:
 113                                         fprintf(fp, "DNSSL: %s (expire: %s)\n",
 114                                             (char *)rao->rao_msg,
 115                                             sec2str(&rao->rao_expire));
 116                                         break;
 117                                 default:
 118                                         break;
 119                                 }
 120                         }
 121                         fprintf(fp, "\n");
 122                 }
 123         }
 124 }
 125
 126 void
 127 rtsold_dump_file(const char *dumpfile)
 128 {
 129         if ((fp = fopen(dumpfile, "w")) == NULL) {
 130                 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s",
 131                     dumpfile, strerror(errno));
 132                 return;
 133         }
 134         dump_interface_status();
 135         fclose(fp);
 136 }
 137
 138 const char *
 139 sec2str(const struct timespec *total)
 140 {
 141         static char result[256];
 142         int days, hours, mins, secs;
 143         int first = 1;
 144         char *p = result;
 145         char *ep = &result[sizeof(result)];
 146         int n;
 147         struct timespec now;
 148         time_t tsec;
 149
 150         clock_gettime(CLOCK_MONOTONIC_FAST, &now);
 151         tsec  = total->tv_sec;
 152         tsec += total->tv_nsec / 1000 / 1000000;
 153         tsec -= now.tv_sec;
 154         tsec -= now.tv_nsec / 1000 / 1000000;
 155
 156         days = tsec / 3600 / 24;
 157         hours = (tsec / 3600) % 24;
 158         mins = (tsec / 60) % 60;
 159         secs = tsec % 60;
 160
 161         if (days) {
 162                 first = 0;
 163                 n = snprintf(p, ep - p, "%dd", days);
 164                 if (n < 0 || n >= ep - p)
 165                         return "?";
 166                 p += n;
 167         }
 168         if (!first || hours) {
 169                 first = 0;
 170                 n = snprintf(p, ep - p, "%dh", hours);
 171                 if (n < 0 || n >= ep - p)
 172                         return "?";
 173                 p += n;
 174         }
 175         if (!first || mins) {
 176                 first = 0;
 177                 n = snprintf(p, ep - p, "%dm", mins);
 178                 if (n < 0 || n >= ep - p)
 179                         return "?";
 180                 p += n;
 181         }
 182         snprintf(p, ep - p, "%ds", secs);
 183
 184         return (result);
 185 }