usr.sbin/rtadvd/dump.c

   1 /*      $NetBSD: dump.c,v 1.7 2006/03/05 23:47:08 rpaulo Exp $  */
   2 /*      $KAME: dump.c,v 1.34 2004/06/14 05:35:59 itojun Exp $   */
   3
   4 /*
   5  * Copyright (C) 2000 WIDE Project.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the project nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32 #include <sys/types.h>
  33 #include <sys/socket.h>
  34 #include <sys/queue.h>
  35
  36 #include <net/if.h>
  37 #include <net/if_dl.h>
  38
  39 #include <netinet/in.h>
  40
  41 /* XXX: the following two are non-standard include files */
  42 #include <netinet6/in6_var.h>
  43 #include <netinet6/nd6.h>
  44
  45 #include <arpa/inet.h>
  46
  47 #include <time.h>
  48 #include <stdio.h>
  49 #include <stdarg.h>
  50 #include <syslog.h>
  51 #include <string.h>
  52 #include <errno.h>
  53 #include <netdb.h>
  54
  55 #include "rtadvd.h"
  56 #include "timer.h"
  57 #include "if.h"
  58 #include "dump.h"
  59
  60 static FILE *fp;
  61
  62 extern struct rainfo *ralist;
  63
  64 static char *ether_str __P((struct sockaddr_dl *));
  65 static void if_dump __P((void));
  66
  67 static char *rtpref_str[] = {
  68         "medium",               /* 00 */
  69         "high",                 /* 01 */
  70         "rsv",                  /* 10 */
  71         "low"                   /* 11 */
  72 };
  73
  74 static char *
  75 ether_str(sdl)
  76         struct sockaddr_dl *sdl;
  77 {
  78         static char hbuf[NI_MAXHOST];
  79
  80         if (sdl->sdl_alen) {
  81                 if (getnameinfo((struct sockaddr *)sdl, sdl->sdl_len,
  82                     hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
  83                         snprintf(hbuf, sizeof(hbuf), "<invalid>");
  84         } else
  85                 snprintf(hbuf, sizeof(hbuf), "NONE");
  86
  87         return(hbuf);
  88 }
  89
  90 static void
  91 if_dump()
  92 {
  93         struct rainfo *rai;
  94         struct prefix *pfx;
  95 #ifdef ROUTEINFO
  96         struct rtinfo *rti;
  97 #endif
  98         char prefixbuf[INET6_ADDRSTRLEN];
  99         int first;
 100         struct timeval now;
 101
 102         gettimeofday(&now, NULL); /* XXX: unused in most cases */
 103         for (rai = ralist; rai; rai = rai->next) {
 104                 fprintf(fp, "%s:\n", rai->ifname);
 105
 106                 fprintf(fp, "  Status: %s\n",
 107                         (iflist[rai->ifindex]->ifm_flags & IFF_UP) ? "UP" :
 108                         "DOWN");
 109
 110                 /* control information */
 111                 if (rai->lastsent.tv_sec) {
 112                         /* note that ctime() appends CR by itself */
 113                         fprintf(fp, "  Last RA sent: %s",
 114                                 ctime((time_t *)&rai->lastsent.tv_sec));
 115                 }
 116                 if (rai->timer) {
 117                         fprintf(fp, "  Next RA will be sent: %s",
 118                                 ctime((time_t *)&rai->timer->tm.tv_sec));
 119                 }
 120                 else
 121                         fprintf(fp, "  RA timer is stopped");
 122                 fprintf(fp, "  waits: %d, initcount: %d\n",
 123                         rai->waiting, rai->initcounter);
 124
 125                 /* statistics */
 126                 fprintf(fp, "  statistics: RA(out/in/inconsistent): "
 127                     "%llu/%llu/%llu, ",
 128                     (unsigned long long)rai->raoutput,
 129                     (unsigned long long)rai->rainput,
 130                     (unsigned long long)rai->rainconsistent);
 131                 fprintf(fp, "RS(input): %llu\n",
 132                     (unsigned long long)rai->rsinput);
 133
 134                 /* interface information */
 135                 if (rai->advlinkopt)
 136                         fprintf(fp, "  Link-layer address: %s\n",
 137                             ether_str(rai->sdl));
 138                 fprintf(fp, "  MTU: %d\n", rai->phymtu);
 139
 140                 /* Router configuration variables */
 141                 fprintf(fp, "  DefaultLifetime: %d, MaxAdvInterval: %d, "
 142                     "MinAdvInterval: %d\n", rai->lifetime, rai->maxinterval,
 143                     rai->mininterval);
 144                 fprintf(fp, "  Flags: %s%s%s, ",
 145                     rai->managedflg ? "M" : "", rai->otherflg ? "O" : "",
 146                     "");
 147                 fprintf(fp, "Preference: %s, ",
 148                         rtpref_str[(rai->rtpref >> 3) & 0xff]);
 149                 fprintf(fp, "MTU: %d\n", rai->linkmtu);
 150                 fprintf(fp, "  ReachableTime: %d, RetransTimer: %d, "
 151                         "CurHopLimit: %d\n", rai->reachabletime,
 152                         rai->retranstimer, rai->hoplimit);
 153                 if (rai->clockskew)
 154                         fprintf(fp, "  Clock skew: %ldsec\n",
 155                             rai->clockskew);
 156                 for (first = 1, pfx = rai->prefix.next; pfx != &rai->prefix;
 157                      pfx = pfx->next) {
 158                         if (first) {
 159                                 fprintf(fp, "  Prefixes:\n");
 160                                 first = 0;
 161                         }
 162                         fprintf(fp, "    %s/%d(",
 163                             inet_ntop(AF_INET6, &pfx->prefix, prefixbuf,
 164                             sizeof(prefixbuf)), pfx->prefixlen);
 165                         switch (pfx->origin) {
 166                         case PREFIX_FROM_KERNEL:
 167                                 fprintf(fp, "KERNEL, ");
 168                                 break;
 169                         case PREFIX_FROM_CONFIG:
 170                                 fprintf(fp, "CONFIG, ");
 171                                 break;
 172                         case PREFIX_FROM_DYNAMIC:
 173                                 fprintf(fp, "DYNAMIC, ");
 174                                 break;
 175                         }
 176                         if (pfx->validlifetime == ND6_INFINITE_LIFETIME)
 177                                 fprintf(fp, "vltime: infinity");
 178                         else
 179                                 fprintf(fp, "vltime: %ld",
 180                                         (long)pfx->validlifetime);
 181                         if (pfx->vltimeexpire != 0)
 182                                 fprintf(fp, "(decr,expire %lld), ", (long long)
 183                                         (pfx->vltimeexpire > now.tv_sec ?
 184                                         pfx->vltimeexpire - now.tv_sec : 0));
 185                         else
 186                                 fprintf(fp, ", ");
 187                         if (pfx->preflifetime ==  ND6_INFINITE_LIFETIME)
 188                                 fprintf(fp, "pltime: infinity");
 189                         else
 190                                 fprintf(fp, "pltime: %ld",
 191                                         (long)pfx->preflifetime);
 192                         if (pfx->pltimeexpire != 0)
 193                                 fprintf(fp, "(decr,expire %lld), ", (long long)
 194                                         (pfx->pltimeexpire > now.tv_sec ?
 195                                         pfx->pltimeexpire - now.tv_sec : 0));
 196                         else
 197                                 fprintf(fp, ", ");
 198                         fprintf(fp, "flags: %s%s%s",
 199                                 pfx->onlinkflg ? "L" : "",
 200                                 pfx->autoconfflg ? "A" : "",
 201                                 "");
 202                         if (pfx->timer) {
 203                                 struct timeval *rest;
 204
 205                                 rest = rtadvd_timer_rest(pfx->timer);
 206                                 if (rest) { /* XXX: what if not? */
 207                                         fprintf(fp, ", expire in: %ld",
 208                                             (long)rest->tv_sec);
 209                                 }
 210                         }
 211                         fprintf(fp, ")\n");
 212                 }
 213 #ifdef ROUTEINFO
 214                 for (first = 1, rti = rai->route.next; rti != &rai->route;
 215                      rti = rti->next) {
 216                         if (first) {
 217                                 fprintf(fp, "  Route Information:\n");
 218                                 first = 0;
 219                         }
 220                         fprintf(fp, "    %s/%d (",
 221                                 inet_ntop(AF_INET6, &rti->prefix,
 222                                           prefixbuf, sizeof(prefixbuf)),
 223                                 rti->prefixlen);
 224                         fprintf(fp, "preference: %s, ",
 225                                 rtpref_str[0xff & (rti->rtpref >> 3)]);
 226                         if (rti->ltime == ND6_INFINITE_LIFETIME)
 227                                 fprintf(fp, "lifetime: infinity");
 228                         else
 229                                 fprintf(fp, "lifetime: %ld", (long)rti->ltime);
 230                         fprintf(fp, ")\n");
 231                 }
 232 #endif
 233         }
 234 }
 235
 236 void
 237 rtadvd_dump_file(dumpfile)
 238         char *dumpfile;
 239 {
 240         syslog(LOG_DEBUG, "<%s> dump current status to %s", __func__,
 241             dumpfile);
 242
 243         if ((fp = fopen(dumpfile, "w")) == NULL) {
 244                 syslog(LOG_WARNING, "<%s> open a dump file(%s)",
 245                        __func__, dumpfile);
 246                 return;
 247         }
 248
 249         if_dump();
 250
 251         fclose(fp);
 252 }