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* 43 yesno(int flag) 44 { 45 return flag ? "yes" : "no"; 46 } 47 48 const char* 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 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 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 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