rtadvd.tproj/dump.c

   1 /*
   2  * Copyright (c) 2009-2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /*      $KAME: dump.c,v 1.32 2003/05/19 09:46:50 keiichi Exp $  */
  30
  31 /*
  32  * Copyright (C) 2000 WIDE Project.
  33  * All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  * 3. Neither the name of the project nor the names of its contributors
  44  *    may be used to endorse or promote products derived from this software
  45  *    without specific prior written permission.
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  57  * SUCH DAMAGE.
  58  */
  59 #include <sys/types.h>
  60 #include <sys/socket.h>
  61 #include <sys/queue.h>
  62
  63 #include <net/if.h>
  64 #include <net/if_var.h>
  65 #include <net/if_dl.h>
  66
  67 #include <netinet/in.h>
  68
  69 /* XXX: the following two are non-standard include files */
  70 #include <netinet6/in6_var.h>
  71 #include <netinet6/nd6.h>
  72
  73 #include <arpa/inet.h>
  74
  75 #include <time.h>
  76 #include <stdio.h>
  77 #include <stdarg.h>
  78 #include <syslog.h>
  79 #include <string.h>
  80 #include <errno.h>
  81
  82 #include "rtadvd.h"
  83 #include "timer.h"
  84 #include "if.h"
  85 #include "dump.h"
  86
  87 static FILE *fp;
  88
  89 extern struct rainfo *ralist;
  90
  91 static char *ether_str(struct sockaddr_dl *);
  92 static void if_dump(void);
  93
  94 static char *rtpref_str[] = {
  95         "medium",               /* 00 */
  96         "high",                 /* 01 */
  97         "rsv",                  /* 10 */
  98         "low"                   /* 11 */
  99 };
 100
 101 static char *
 102 ether_str(sdl)
 103         struct sockaddr_dl *sdl;
 104 {
 105         static char hbuf[32];
 106         u_char *cp;
 107
 108         if (sdl->sdl_alen && sdl->sdl_alen > 5) {
 109                 cp = (u_char *)LLADDR(sdl);
 110                 snprintf(hbuf, sizeof(hbuf), "%x:%x:%x:%x:%x:%x",
 111                         cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
 112         } else
 113                 snprintf(hbuf, sizeof(hbuf), "NONE");
 114
 115         return(hbuf);
 116 }
 117
 118 static void
 119 if_dump()
 120 {
 121         struct rainfo *rai;
 122         struct prefix *pfx;
 123 #ifdef ROUTEINFO
 124         struct rtinfo *rti;
 125 #endif
 126         char prefixbuf[INET6_ADDRSTRLEN];
 127         int first;
 128         struct timeval now;
 129
 130         gettimeofday(&now, NULL); /* XXX: unused in most cases */
 131         for (rai = ralist; rai; rai = rai->next) {
 132                 fprintf(fp, "%s:\n", rai->ifname);
 133
 134                 fprintf(fp, "  Status: %s\n",
 135                         (iflist[rai->ifindex]->ifm_flags & IFF_UP) ? "UP" :
 136                         "DOWN");
 137
 138                 /* control information */
 139                 if (rai->lastsent.tv_sec) {
 140                         /* note that ctime() appends CR by itself */
 141                         fprintf(fp, "  Last RA sent: %s",
 142                             ctime((time_t *)&rai->lastsent.tv_sec));
 143                 }
 144                 if (rai->timer) {
 145                         fprintf(fp, "  Next RA will be sent: %s",
 146                             ctime((time_t *)&rai->timer->tm.tv_sec));
 147                 }
 148                 else
 149                         fprintf(fp, "  RA timer is stopped");
 150                 fprintf(fp, "  waits: %d, initcount: %d\n",
 151                         rai->waiting, rai->initcounter);
 152
 153                 /* statistics */
 154                 fprintf(fp, "  statistics: RA(out/in/inconsistent): "
 155                     "%llu/%llu/%llu, ",
 156                     (unsigned long long)rai->raoutput,
 157                     (unsigned long long)rai->rainput,
 158                     (unsigned long long)rai->rainconsistent);
 159                 fprintf(fp, "RS(input): %llu\n",
 160                     (unsigned long long)rai->rsinput);
 161
 162                 /* interface information */
 163                 if (rai->advlinkopt)
 164                         fprintf(fp, "  Link-layer address: %s\n",
 165                             ether_str(rai->sdl));
 166                 fprintf(fp, "  MTU: %d\n", rai->phymtu);
 167
 168                 /* Router configuration variables */
 169                 fprintf(fp, "  DefaultLifetime: %d, MaxAdvInterval: %d, "
 170                     "MinAdvInterval: %d\n", rai->lifetime, rai->maxinterval,
 171                     rai->mininterval);
 172                 fprintf(fp, "  Flags: %s%s%s, ",
 173                     rai->managedflg ? "M" : "", rai->otherflg ? "O" : "", "");
 174                 fprintf(fp, "Preference: %s, ",
 175                         rtpref_str[(rai->rtpref >> 3) & 0xff]);
 176                 fprintf(fp, "MTU: %d\n", rai->linkmtu);
 177                 fprintf(fp, "  ReachableTime: %d, RetransTimer: %d, "
 178                         "CurHopLimit: %d\n", rai->reachabletime,
 179                         rai->retranstimer, rai->hoplimit);
 180                 if (rai->clockskew)
 181                         fprintf(fp, "  Clock skew: %ldsec\n",
 182                             rai->clockskew);
 183                 for (first = 1, pfx = rai->prefix.next; pfx != &rai->prefix;
 184                      pfx = pfx->next) {
 185                         if (first) {
 186                                 fprintf(fp, "  Prefixes:\n");
 187                                 first = 0;
 188                         }
 189                         fprintf(fp, "    %s/%d(",
 190                             inet_ntop(AF_INET6, &pfx->prefix, prefixbuf,
 191                             sizeof(prefixbuf)), pfx->prefixlen);
 192                         switch (pfx->origin) {
 193                         case PREFIX_FROM_KERNEL:
 194                                 fprintf(fp, "KERNEL, ");
 195                                 break;
 196                         case PREFIX_FROM_CONFIG:
 197                                 fprintf(fp, "CONFIG, ");
 198                                 break;
 199                         case PREFIX_FROM_DYNAMIC:
 200                                 fprintf(fp, "DYNAMIC, ");
 201                                 break;
 202                         }
 203                         if (pfx->validlifetime == ND6_INFINITE_LIFETIME)
 204                                 fprintf(fp, "vltime: infinity");
 205                         else
 206                                 fprintf(fp, "vltime: %ld",
 207                                         (long)pfx->validlifetime);
 208                         if (pfx->vltimeexpire != 0)
 209                                 fprintf(fp, "(decr,expire %ld), ", (long)
 210                                         pfx->vltimeexpire > now.tv_sec ?
 211                                         pfx->vltimeexpire - now.tv_sec : 0);
 212                         else
 213                                 fprintf(fp, ", ");
 214                         if (pfx->preflifetime ==  ND6_INFINITE_LIFETIME)
 215                                 fprintf(fp, "pltime: infinity");
 216                         else
 217                                 fprintf(fp, "pltime: %ld",
 218                                         (long)pfx->preflifetime);
 219                         if (pfx->pltimeexpire != 0)
 220                                 fprintf(fp, "(decr,expire %ld), ", (long)
 221                                         pfx->pltimeexpire > now.tv_sec ?
 222                                         pfx->pltimeexpire - now.tv_sec : 0);
 223                         else
 224                                 fprintf(fp, ", ");
 225                         fprintf(fp, "flags: %s%s%s",
 226                                 pfx->onlinkflg ? "L" : "",
 227                                 pfx->autoconfflg ? "A" : "",
 228                                 "");
 229                         if (pfx->timer) {
 230                                 struct timeval *rest;
 231
 232                                 rest = rtadvd_timer_rest(pfx->timer);
 233                                 if (rest) { /* XXX: what if not? */
 234                                         fprintf(fp, ", expire in: %ld",
 235                                             (long)rest->tv_sec);
 236                                 }
 237                         }
 238                         fprintf(fp, ")\n");
 239                 }
 240 #ifdef ROUTEINFO
 241                 for (first = 1, rti = rai->route.next; rti != &rai->route;
 242                      rti = rti->next) {
 243                         if (first) {
 244                                 fprintf(fp, "  Route Information:\n");
 245                                 first = 0;
 246                         }
 247                         fprintf(fp, "    %s/%d (",
 248                                 inet_ntop(AF_INET6, &rti->prefix,
 249                                           prefixbuf, sizeof(prefixbuf)),
 250                                 rti->prefixlen);
 251                         fprintf(fp, "preference: %s, ",
 252                                 rtpref_str[0xff & (rti->rtpref >> 3)]);
 253                         if (rti->ltime == ND6_INFINITE_LIFETIME)
 254                                 fprintf(fp, "lifetime: infinity");
 255                         else
 256                                 fprintf(fp, "lifetime: %ld", (long)rti->ltime);
 257                         fprintf(fp, ")\n");
 258                 }
 259 #endif
 260         }
 261 }
 262
 263 void
 264 rtadvd_dump_file(dumpfile)
 265         char *dumpfile;
 266 {
 267         syslog(LOG_DEBUG, "<%s> dump current status to %s", __func__,
 268             dumpfile);
 269
 270         if ((fp = fopen(dumpfile, "w")) == NULL) {
 271                 syslog(LOG_WARNING, "<%s> open a dump file(%s)",
 272                     __func__, dumpfile);
 273                 return;
 274         }
 275
 276         if_dump();
 277
 278         fclose(fp);
 279 }