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/time.h> 36 #include <sys/socket.h> 37 #include <sys/queue.h> 38 39 #include <net/if.h> 40 #include <netinet/in.h> 41 #include <netinet/icmp6.h> 42 #include <arpa/inet.h> 43 44 #include <syslog.h> 45 #include <time.h> 46 #include <stdio.h> 47 #include <string.h> 48 #include <errno.h> 49 50 #include "rtsold.h" 51 52 static FILE *fp; 53 54 extern struct ifinfo *iflist; 55 56 static void dump_interface_status(void); 57 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"}; 58 59 static void 60 dump_interface_status(void) 61 { 62 struct ifinfo *ifi; 63 struct rainfo *rai; 64 struct ra_opt *rao; 65 struct timeval now; 66 char ntopbuf[INET6_ADDRSTRLEN]; 67 68 gettimeofday(&now, NULL); 69 70 TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) { 71 fprintf(fp, "Interface %s\n", ifi->ifname); 72 fprintf(fp, " probe interval: "); 73 if (ifi->probeinterval) { 74 fprintf(fp, "%d\n", ifi->probeinterval); 75 fprintf(fp, " probe timer: %d\n", ifi->probetimer); 76 } else { 77 fprintf(fp, "infinity\n"); 78 fprintf(fp, " no probe timer\n"); 79 } 80 fprintf(fp, " interface status: %s\n", 81 ifi->active > 0 ? "active" : "inactive"); 82 fprintf(fp, " other config: %s\n", 83 ifi->otherconfig ? "on" : "off"); 84 fprintf(fp, " rtsold status: %s\n", ifstatstr[ifi->state]); 85 fprintf(fp, " carrier detection: %s\n", 86 ifi->mediareqok ? "available" : "unavailable"); 87 fprintf(fp, " probes: %d, dadcount = %d\n", 88 ifi->probes, ifi->dadcount); 89 if (ifi->timer.tv_sec == tm_max.tv_sec && 90 ifi->timer.tv_usec == tm_max.tv_usec) 91 fprintf(fp, " no timer\n"); 92 else { 93 fprintf(fp, " timer: interval=%d:%d, expire=%s\n", 94 (int)ifi->timer.tv_sec, 95 (int)ifi->timer.tv_usec, 96 (ifi->expire.tv_sec < now.tv_sec) ? "expired" 97 : sec2str(&ifi->expire)); 98 } 99 fprintf(fp, " number of valid RAs: %d\n", ifi->racnt); 100 101 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) { 102 fprintf(fp, " RA from %s\n", 103 inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr, 104 ntopbuf, sizeof(ntopbuf))); 105 TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) { 106 fprintf(fp, " option: "); 107 switch (rao->rao_type) { 108 case ND_OPT_RDNSS: 109 fprintf(fp, "RDNSS: %s (expire: %s)\n", 110 (char *)rao->rao_msg, 111 sec2str(&rao->rao_expire)); 112 break; 113 case ND_OPT_DNSSL: 114 fprintf(fp, "DNSSL: %s (expire: %s)\n", 115 (char *)rao->rao_msg, 116 sec2str(&rao->rao_expire)); 117 break; 118 default: 119 break; 120 } 121 } 122 fprintf(fp, "\n"); 123 } 124 } 125 } 126 127 void 128 rtsold_dump_file(const char *dumpfile) 129 { 130 if ((fp = fopen(dumpfile, "w")) == NULL) { 131 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s", 132 dumpfile, strerror(errno)); 133 return; 134 } 135 dump_interface_status(); 136 fclose(fp); 137 } 138 139 const char * 140 sec2str(const struct timeval *total) 141 { 142 static char result[256]; 143 int days, hours, mins, secs; 144 int first = 1; 145 char *p = result; 146 char *ep = &result[sizeof(result)]; 147 int n; 148 struct timeval now; 149 time_t tsec; 150 151 gettimeofday(&now, NULL); 152 tsec = total->tv_sec; 153 tsec += total->tv_usec / 1000000; 154 tsec -= now.tv_sec; 155 tsec -= now.tv_usec / 1000000; 156 157 days = tsec / 3600 / 24; 158 hours = (tsec / 3600) % 24; 159 mins = (tsec / 60) % 60; 160 secs = tsec % 60; 161 162 if (days) { 163 first = 0; 164 n = snprintf(p, ep - p, "%dd", days); 165 if (n < 0 || n >= ep - p) 166 return "?"; 167 p += n; 168 } 169 if (!first || hours) { 170 first = 0; 171 n = snprintf(p, ep - p, "%dh", hours); 172 if (n < 0 || n >= ep - p) 173 return "?"; 174 p += n; 175 } 176 if (!first || mins) { 177 first = 0; 178 n = snprintf(p, ep - p, "%dm", mins); 179 if (n < 0 || n >= ep - p) 180 return "?"; 181 p += n; 182 } 183 snprintf(p, ep - p, "%ds", secs); 184 185 return (result); 186 } 187