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/socket.h> 36 #include <sys/queue.h> 37 38 #include <net/if.h> 39 #include <netinet/in.h> 40 #include <netinet/icmp6.h> 41 #include <arpa/inet.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 static void dump_interface_status(void); 54 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"}; 55 56 static void 57 dump_interface_status(void) 58 { 59 struct ifinfo *ifi; 60 struct rainfo *rai; 61 struct ra_opt *rao; 62 struct timespec now; 63 char ntopbuf[INET6_ADDRSTRLEN]; 64 65 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 66 67 TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) { 68 fprintf(fp, "Interface %s\n", ifi->ifname); 69 fprintf(fp, " probe interval: "); 70 if (ifi->probeinterval) { 71 fprintf(fp, "%d\n", ifi->probeinterval); 72 fprintf(fp, " probe timer: %d\n", ifi->probetimer); 73 } else { 74 fprintf(fp, "infinity\n"); 75 fprintf(fp, " no probe timer\n"); 76 } 77 fprintf(fp, " interface status: %s\n", 78 ifi->active > 0 ? "active" : "inactive"); 79 fprintf(fp, " other config: %s\n", 80 ifi->otherconfig ? "on" : "off"); 81 fprintf(fp, " rtsold status: %s\n", ifstatstr[ifi->state]); 82 fprintf(fp, " carrier detection: %s\n", 83 ifi->mediareqok ? "available" : "unavailable"); 84 fprintf(fp, " probes: %d, dadcount = %d\n", 85 ifi->probes, ifi->dadcount); 86 if (ifi->timer.tv_sec == tm_max.tv_sec && 87 ifi->timer.tv_nsec == tm_max.tv_nsec) 88 fprintf(fp, " no timer\n"); 89 else { 90 fprintf(fp, " timer: interval=%d:%d, expire=%s\n", 91 (int)ifi->timer.tv_sec, 92 (int)ifi->timer.tv_nsec / 1000, 93 (ifi->expire.tv_sec < now.tv_sec) ? "expired" 94 : sec2str(&ifi->expire)); 95 } 96 fprintf(fp, " number of valid RAs: %d\n", ifi->racnt); 97 98 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) { 99 fprintf(fp, " RA from %s\n", 100 inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr, 101 ntopbuf, sizeof(ntopbuf))); 102 TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) { 103 fprintf(fp, " option: "); 104 switch (rao->rao_type) { 105 case ND_OPT_RDNSS: 106 fprintf(fp, "RDNSS: %s (expire: %s)\n", 107 (char *)rao->rao_msg, 108 sec2str(&rao->rao_expire)); 109 break; 110 case ND_OPT_DNSSL: 111 fprintf(fp, "DNSSL: %s (expire: %s)\n", 112 (char *)rao->rao_msg, 113 sec2str(&rao->rao_expire)); 114 break; 115 default: 116 break; 117 } 118 } 119 fprintf(fp, "\n"); 120 } 121 } 122 } 123 124 void 125 rtsold_dump_file(const char *dumpfile) 126 { 127 if ((fp = fopen(dumpfile, "w")) == NULL) { 128 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s", 129 dumpfile, strerror(errno)); 130 return; 131 } 132 dump_interface_status(); 133 fclose(fp); 134 } 135 136 const char * 137 sec2str(const struct timespec *total) 138 { 139 static char result[256]; 140 int days, hours, mins, secs; 141 int first = 1; 142 char *p = result; 143 char *ep = &result[sizeof(result)]; 144 int n; 145 struct timespec now; 146 time_t tsec; 147 148 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 149 tsec = total->tv_sec; 150 tsec += total->tv_nsec / 1000 / 1000000; 151 tsec -= now.tv_sec; 152 tsec -= now.tv_nsec / 1000 / 1000000; 153 154 days = tsec / 3600 / 24; 155 hours = (tsec / 3600) % 24; 156 mins = (tsec / 60) % 60; 157 secs = tsec % 60; 158 159 if (days) { 160 first = 0; 161 n = snprintf(p, ep - p, "%dd", days); 162 if (n < 0 || n >= ep - p) 163 return "?"; 164 p += n; 165 } 166 if (!first || hours) { 167 first = 0; 168 n = snprintf(p, ep - p, "%dh", hours); 169 if (n < 0 || n >= ep - p) 170 return "?"; 171 p += n; 172 } 173 if (!first || mins) { 174 first = 0; 175 n = snprintf(p, ep - p, "%dm", mins); 176 if (n < 0 || n >= ep - p) 177 return "?"; 178 p += n; 179 } 180 snprintf(p, ep - p, "%ds", secs); 181 182 return (result); 183 } 184