usr.sbin/rtsold/dump.c

   1 /*      $KAME: dump.c,v 1.8 2000/10/05 22:20:39 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: src/usr.sbin/rtsold/dump.c,v 1.1.2.3 2001/07/03 11:02:16 ume Exp $
  32  * $DragonFly: src/usr.sbin/rtsold/dump.c,v 1.6 2005/12/05 00:56:37 swildner Exp $
  33  */
  34
  35 #include <sys/types.h>
  36 #include <sys/time.h>
  37 #include <sys/socket.h>
  38
  39 #include <net/if.h>
  40 #include <netinet/in.h>
  41 #include <netinet/icmp6.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 extern struct ifinfo *iflist;
  54
  55 static void dump_interface_status(void);
  56 static char *sec2str(time_t);
  57 const char *ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"};
  58
  59 static void
  60 dump_interface_status(void)
  61 {
  62         struct ifinfo *ifinfo;
  63         struct timeval now;
  64
  65         gettimeofday(&now, NULL);
  66
  67         for (ifinfo = iflist; ifinfo; ifinfo = ifinfo->next) {
  68                 fprintf(fp, "Interface %s\n", ifinfo->ifname);
  69                 fprintf(fp, "  probe interval: ");
  70                 if (ifinfo->probeinterval) {
  71                         fprintf(fp, "%d\n", ifinfo->probeinterval);
  72                         fprintf(fp, "  probe timer: %d\n", ifinfo->probetimer);
  73                 }
  74                 else {
  75                         fprintf(fp, "infinity\n");
  76                         fprintf(fp, "  no probe timer\n");
  77                 }
  78                 fprintf(fp, "  interface status: %s\n",
  79                         ifinfo->active > 0 ? "active" : "inactive");
  80                 fprintf(fp, "  rtsold status: %s\n", ifstatstr[ifinfo->state]);
  81                 fprintf(fp, "  carrier detection: %s\n",
  82                         ifinfo->mediareqok ? "available" : "unavailable");
  83                 fprintf(fp, "  probes: %d, dadcount = %d\n",
  84                         ifinfo->probes, ifinfo->dadcount);
  85                 if (ifinfo->timer.tv_sec == tm_max.tv_sec &&
  86                     ifinfo->timer.tv_usec == tm_max.tv_usec)
  87                         fprintf(fp, "  no timer\n");
  88                 else {
  89                         fprintf(fp, "  timer: interval=%d:%d, expire=%s\n",
  90                                 (int)ifinfo->timer.tv_sec,
  91                                 (int)ifinfo->timer.tv_usec,
  92                                 (ifinfo->expire.tv_sec < now.tv_sec) ? "expired"
  93                                 : sec2str(ifinfo->expire.tv_sec - now.tv_sec));
  94                 }
  95                 fprintf(fp, "  number of valid RAs: %d\n", ifinfo->racnt);
  96         }
  97 }
  98
  99 void
 100 rtsold_dump_file(const char *dumpfile)
 101 {
 102         if ((fp = fopen(dumpfile, "w")) == NULL) {
 103                 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s",
 104                         dumpfile, strerror(errno));
 105                 return;
 106         }
 107
 108         dump_interface_status();
 109
 110         fclose(fp);
 111 }
 112
 113 static char *
 114 sec2str(time_t total)
 115 {
 116         static char result[256];
 117         int days, hours, mins, secs;
 118         int first = 1;
 119         char *p = result;
 120
 121         days = total / 3600 / 24;
 122         hours = (total / 3600) % 24;
 123         mins = (total / 60) % 60;
 124         secs = total % 60;
 125
 126         if (days) {
 127                 first = 0;
 128                 p += sprintf(p, "%dd", days);
 129         }
 130         if (!first || hours) {
 131                 first = 0;
 132                 p += sprintf(p, "%dh", hours);
 133         }
 134         if (!first || mins) {
 135                 first = 0;
 136                 p += sprintf(p, "%dm", mins);
 137         }
 138         sprintf(p, "%ds", secs);
 139
 140         return(result);
 141 }