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 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 extern struct ifinfo *iflist; 54 55 static void dump_interface_status(void); 56 static const char *sec2str(time_t); 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 timeval now; 64 65 gettimeofday(&now, NULL); 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_usec == tm_max.tv_usec) 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_usec, 93 (ifi->expire.tv_sec < now.tv_sec) ? "expired" 94 : sec2str(ifi->expire.tv_sec - now.tv_sec)); 95 } 96 fprintf(fp, " number of valid RAs: %d\n", ifi->racnt); 97 } 98 } 99 100 void 101 rtsold_dump_file(const char *dumpfile) 102 { 103 if ((fp = fopen(dumpfile, "w")) == NULL) { 104 warnmsg(LOG_WARNING, __func__, "open a dump file(%s): %s", 105 dumpfile, strerror(errno)); 106 return; 107 } 108 dump_interface_status(); 109 fclose(fp); 110 } 111 112 static const char * 113 sec2str(time_t total) 114 { 115 static char result[256]; 116 int days, hours, mins, secs; 117 int first = 1; 118 char *p = result; 119 char *ep = &result[sizeof(result)]; 120 int n; 121 122 days = total / 3600 / 24; 123 hours = (total / 3600) % 24; 124 mins = (total / 60) % 60; 125 secs = total % 60; 126 127 if (days) { 128 first = 0; 129 n = snprintf(p, ep - p, "%dd", days); 130 if (n < 0 || n >= ep - p) 131 return "?"; 132 p += n; 133 } 134 if (!first || hours) { 135 first = 0; 136 n = snprintf(p, ep - p, "%dh", hours); 137 if (n < 0 || n >= ep - p) 138 return "?"; 139 p += n; 140 } 141 if (!first || mins) { 142 first = 0; 143 n = snprintf(p, ep - p, "%dm", mins); 144 if (n < 0 || n >= ep - p) 145 return "?"; 146 p += n; 147 } 148 snprintf(p, ep - p, "%ds", secs); 149 150 return (result); 151 } 152