1 /* $KAME: dump.c,v 1.13 2003/10/05 00:09:36 itojun Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (C) 1999 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 36 #include <sys/types.h> 37 #include <sys/socket.h> 38 #include <sys/queue.h> 39 40 #include <net/if.h> 41 #include <netinet/in.h> 42 #include <netinet/icmp6.h> 43 #include <arpa/inet.h> 44 45 #include <syslog.h> 46 #include <time.h> 47 #include <stdio.h> 48 #include <string.h> 49 #include <errno.h> 50 51 #include "rtsold.h" 52 53 static FILE *fp; 54 55 static void dump_interface_status(void); 56 static const char * const ifstatstr[] = {"IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE"}; 57 58 static void 59 dump_interface_status(void) 60 { 61 struct ifinfo *ifi; 62 struct rainfo *rai; 63 struct ra_opt *rao; 64 struct timespec now; 65 char ntopbuf[INET6_ADDRSTRLEN]; 66 67 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 68 69 TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) { 70 fprintf(fp, "Interface %s\n", ifi->ifname); 71 fprintf(fp, " probe interval: "); 72 if (ifi->probeinterval) { 73 fprintf(fp, "%d\n", ifi->probeinterval); 74 fprintf(fp, " probe timer: %d\n", ifi->probetimer); 75 } else { 76 fprintf(fp, "infinity\n"); 77 fprintf(fp, " no probe timer\n"); 78 } 79 fprintf(fp, " interface status: %s\n", 80 ifi->active > 0 ? "active" : "inactive"); 81 fprintf(fp, " other config: %s\n", 82 ifi->otherconfig ? "on" : "off"); 83 fprintf(fp, " rtsold status: %s\n", ifstatstr[ifi->state]); 84 fprintf(fp, " carrier detection: %s\n", 85 ifi->mediareqok ? "available" : "unavailable"); 86 fprintf(fp, " probes: %d, dadcount = %d\n", 87 ifi->probes, ifi->dadcount); 88 if (ifi->timer.tv_sec == tm_max.tv_sec && 89 ifi->timer.tv_nsec == tm_max.tv_nsec) 90 fprintf(fp, " no timer\n"); 91 else { 92 fprintf(fp, " timer: interval=%d:%d, expire=%s\n", 93 (int)ifi->timer.tv_sec, 94 (int)ifi->timer.tv_nsec / 1000, 95 (ifi->expire.tv_sec < now.tv_sec) ? "expired" 96 : sec2str(&ifi->expire)); 97 } 98 fprintf(fp, " number of valid RAs: %d\n", ifi->racnt); 99 100 TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) { 101 fprintf(fp, " RA from %s\n", 102 inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr, 103 ntopbuf, sizeof(ntopbuf))); 104 TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) { 105 fprintf(fp, " option: "); 106 switch (rao->rao_type) { 107 case ND_OPT_RDNSS: 108 fprintf(fp, "RDNSS: %s (expire: %s)\n", 109 (char *)rao->rao_msg, 110 sec2str(&rao->rao_expire)); 111 break; 112 case ND_OPT_DNSSL: 113 fprintf(fp, "DNSSL: %s (expire: %s)\n", 114 (char *)rao->rao_msg, 115 sec2str(&rao->rao_expire)); 116 break; 117 default: 118 break; 119 } 120 } 121 fprintf(fp, "\n"); 122 } 123 } 124 } 125 126 void 127 rtsold_dump_file(const char *dumpfile) 128 { 129 if ((fp = fopen(dumpfile, "w")) == NULL) { 130 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s", 131 dumpfile, strerror(errno)); 132 return; 133 } 134 dump_interface_status(); 135 fclose(fp); 136 } 137 138 const char * 139 sec2str(const struct timespec *total) 140 { 141 static char result[256]; 142 int days, hours, mins, secs; 143 int first = 1; 144 char *p = result; 145 char *ep = &result[sizeof(result)]; 146 int n; 147 struct timespec now; 148 time_t tsec; 149 150 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 151 tsec = total->tv_sec; 152 tsec += total->tv_nsec / 1000 / 1000000; 153 tsec -= now.tv_sec; 154 tsec -= now.tv_nsec / 1000 / 1000000; 155 156 days = tsec / 3600 / 24; 157 hours = (tsec / 3600) % 24; 158 mins = (tsec / 60) % 60; 159 secs = tsec % 60; 160 161 if (days) { 162 first = 0; 163 n = snprintf(p, ep - p, "%dd", days); 164 if (n < 0 || n >= ep - p) 165 return "?"; 166 p += n; 167 } 168 if (!first || hours) { 169 first = 0; 170 n = snprintf(p, ep - p, "%dh", hours); 171 if (n < 0 || n >= ep - p) 172 return "?"; 173 p += n; 174 } 175 if (!first || mins) { 176 first = 0; 177 n = snprintf(p, ep - p, "%dm", mins); 178 if (n < 0 || n >= ep - p) 179 return "?"; 180 p += n; 181 } 182 snprintf(p, ep - p, "%ds", secs); 183 184 return (result); 185 } 186