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
dump_interface_status(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
rtsold_dump_file(const char * dumpfile)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 *
sec2str(const struct timespec * total)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