1 /* $OpenBSD: printconf.c,v 1.9 2024/05/17 06:50:14 florian Exp $ */
2
3 /*
4 * Copyright (c) 2018 Florian Obser <florian@openbsd.org>
5 * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #include <sys/types.h>
21 #include <sys/queue.h>
22 #include <sys/socket.h>
23 #include <sys/uio.h>
24
25 #include <netinet/in.h>
26 #include <netinet/icmp6.h>
27 #include <net/if.h>
28
29 #include <arpa/inet.h>
30
31 #include <event.h>
32 #include <imsg.h>
33 #include <stdio.h>
34
35 #include "rad.h"
36
37 const char* yesno(int);
38 const char* rtpref(int);
39 void print_ra_options(const char*, const struct ra_options_conf*);
40 void print_prefix_options(const char*, const struct ra_prefix_conf*);
41
42 const char*
yesno(int flag)43 yesno(int flag)
44 {
45 return flag ? "yes" : "no";
46 }
47
48 const char*
rtpref(int rtpref)49 rtpref(int rtpref)
50 {
51 switch (rtpref & ND_RA_FLAG_RTPREF_MASK) {
52 case ND_RA_FLAG_RTPREF_HIGH:
53 return "high";
54 case ND_RA_FLAG_RTPREF_MEDIUM:
55 return "medium";
56 case ND_RA_FLAG_RTPREF_LOW:
57 return "low";
58 default:
59 return "invalid";
60 }
61
62 }
63
64 void
print_ra_options(const char * indent,const struct ra_options_conf * ra_options)65 print_ra_options(const char *indent, const struct ra_options_conf *ra_options)
66 {
67 struct ra_rdnss_conf *ra_rdnss;
68 struct ra_dnssl_conf *ra_dnssl;
69 struct ra_pref64_conf *pref64;
70 char buf[INET6_ADDRSTRLEN];
71
72 printf("%sdefault router %s\n", indent, yesno(ra_options->dfr));
73 printf("%shop limit %d\n", indent, ra_options->cur_hl);
74 printf("%smanaged address configuration %s\n", indent,
75 yesno(ra_options->m_flag));
76 printf("%sother configuration %s\n", indent, yesno(ra_options->o_flag));
77 printf("%srouter preference %s\n", indent, rtpref(ra_options->rtpref));
78 printf("%srouter lifetime %d\n", indent, ra_options->router_lifetime);
79 printf("%sreachable time %u\n", indent, ra_options->reachable_time);
80 printf("%sretrans timer %u\n", indent, ra_options->retrans_timer);
81 printf("%ssource link-layer address %s\n", indent,
82 yesno(ra_options->source_link_addr));
83 if (ra_options->mtu > 0)
84 printf("%smtu %u\n", indent, ra_options->mtu);
85
86 if (!SIMPLEQ_EMPTY(&ra_options->ra_rdnss_list) ||
87 !SIMPLEQ_EMPTY(&ra_options->ra_dnssl_list)) {
88 printf("%sdns {\n", indent);
89 printf("%s\tlifetime %u\n", indent, ra_options->rdns_lifetime);
90 if (!SIMPLEQ_EMPTY(&ra_options->ra_rdnss_list)) {
91 printf("%s\tnameserver {\n", indent);
92 SIMPLEQ_FOREACH(ra_rdnss,
93 &ra_options->ra_rdnss_list, entry) {
94 inet_ntop(AF_INET6, &ra_rdnss->rdnss,
95 buf, sizeof(buf));
96 printf("%s\t\t%s\n", indent, buf);
97 }
98 printf("%s\t}\n", indent);
99 }
100 if (!SIMPLEQ_EMPTY(&ra_options->ra_dnssl_list)) {
101 printf("%s\tsearch {\n", indent);
102 SIMPLEQ_FOREACH(ra_dnssl,
103 &ra_options->ra_dnssl_list, entry)
104 printf("%s\t\t%s\n", indent, ra_dnssl->search);
105 printf("%s\t}\n", indent);
106 }
107 printf("%s}\n", indent);
108 }
109 SIMPLEQ_FOREACH(pref64, &ra_options->ra_pref64_list, entry) {
110 printf("%snat64 prefix %s/%d {\n", indent, inet_ntop(AF_INET6,
111 &pref64->prefix, buf, sizeof(buf)), pref64->prefixlen);
112 printf("%s\tlifetime %u\n", indent, pref64->ltime);
113 printf("%s}\n", indent);
114 }
115
116 }
117
118 void
print_prefix_options(const char * indent,const struct ra_prefix_conf * ra_prefix_conf)119 print_prefix_options(const char *indent, const struct ra_prefix_conf
120 *ra_prefix_conf)
121 {
122 printf("%svalid lifetime %u\n", indent, ra_prefix_conf->vltime);
123 printf("%spreferred lifetime %u\n", indent, ra_prefix_conf->pltime);
124 printf("%son-link %s\n", indent, yesno(ra_prefix_conf->lflag));
125 printf("%sautonomous address-configuration %s\n", indent,
126 yesno(ra_prefix_conf->aflag));
127 }
128
129 void
print_config(struct rad_conf * conf)130 print_config(struct rad_conf *conf)
131 {
132 struct ra_iface_conf *iface;
133 struct ra_prefix_conf *prefix;
134 char buf[INET6_ADDRSTRLEN];
135
136 print_ra_options("", &conf->ra_options);
137 printf("\n");
138
139 SIMPLEQ_FOREACH(iface, &conf->ra_iface_list, entry) {
140 printf("interface %s {\n", iface->name);
141
142 print_ra_options("\t", &iface->ra_options);
143
144 if (iface->autoprefix) {
145 printf("\tauto prefix {\n");
146 print_prefix_options("\t\t", iface->autoprefix);
147 printf("\t}\n");
148 } else
149 printf("\tno auto prefix\n");
150
151 SIMPLEQ_FOREACH(prefix, &iface->ra_prefix_list, entry) {
152 printf("\tprefix %s/%d {\n", inet_ntop(AF_INET6,
153 &prefix->prefix, buf, sizeof(buf)),
154 prefix->prefixlen);
155 print_prefix_options("\t\t", prefix);
156 printf("\t}\n");
157 }
158
159 printf("}\n");
160 }
161 }
162