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      1 /*
      2  * src/nl-addr-list.c     List addresses
      3  *
      4  *	This library is free software; you can redistribute it and/or
      5  *	modify it under the terms of the GNU General Public License as
      6  *	published by the Free Software Foundation version 2 of the License.
      7  *
      8  * Copyright (c) 2003-2009 Thomas Graf <tgraf (at) suug.ch>
      9  */
     10 
     11 #include <netlink/cli/utils.h>
     12 #include <netlink/cli/addr.h>
     13 #include <netlink/cli/link.h>
     14 
     15 static void print_usage(void)
     16 {
     17 	printf(
     18 "Usage: nl-addr-list [OPTION]... [ADDRESS]\n"
     19 "\n"
     20 "Options\n"
     21 "     --details             Show details on multiple lines.\n"
     22 "     --env                 Print address details in sh env variable syntax.\n"
     23 "     --prefix=STRING       Prefix each printed line.\n"
     24 " -h, --help                Show this help.\n"
     25 " -v, --version             Show versioning information.\n"
     26 "\n"
     27 "Address Selection\n"
     28 " -a, --local=ADDR          Local address.\n"
     29 " -d, --dev=DEV             Associated network device.\n"
     30 "     --family=FAMILY       Family of local address.\n"
     31 "     --label=STRING        Address label (IPv4).\n"
     32 "     --peer=ADDR           Peer address (IPv4).\n"
     33 "     --scope=SCOPE         Address scope (IPv4).\n"
     34 "     --broadcast=ADDR      Broadcast address of network (IPv4).\n"
     35 "     --valid-lifetime=TS   Valid lifetime before route expires (IPv6).\n"
     36 "     --preferred=TIME      Preferred lifetime (IPv6).\n"
     37 "     --valid=TIME          Valid lifetime (IPv6).\n"
     38 	);
     39 	exit(0);
     40 }
     41 
     42 static char *prefix;
     43 
     44 void print_prefix(struct nl_dump_params *p, int line)
     45 {
     46 	if (prefix)
     47 		nl_dump(p, "%s", prefix);
     48 }
     49 
     50 static void env_dump(struct nl_object *obj, void *arg)
     51 {
     52 	struct nl_dump_params *p = arg;
     53 	struct rtnl_addr *addr = (struct rtnl_addr *) obj;
     54 	struct nl_cache *link_cache;
     55 	struct nl_addr *a;
     56 	static int index = 0;
     57 	char buf[128], pfx[32], *s;
     58 
     59 	snprintf(pfx, sizeof(pfx), "ADDR%d", index++);
     60 
     61 	nl_dump_line(p, "%s_FAMILY=%s\n", pfx,
     62 		     nl_af2str(rtnl_addr_get_family(addr), buf, sizeof(buf)));
     63 
     64 	nl_dump_line(p, "%s_LOCAL=%s\n", pfx,
     65 		     nl_addr2str(rtnl_addr_get_local(addr), buf, sizeof(buf)));
     66 
     67 	nl_dump_line(p, "%s_IFINDEX=%u\n", pfx, rtnl_addr_get_ifindex(addr));
     68 	link_cache = nl_cache_mngt_require("route/link");
     69 	if (link_cache)
     70 		nl_dump_line(p, "%s_IFNAME=%s\n", pfx,
     71 			     rtnl_link_i2name(link_cache,
     72 			     		      rtnl_addr_get_ifindex(addr),
     73 			     		      buf, sizeof(buf)));
     74 
     75 	if ((a = rtnl_addr_get_peer(addr)))
     76 		nl_dump_line(p, "%s_PEER=%s\n", pfx,
     77 			     nl_addr2str(a, buf, sizeof(buf)));
     78 
     79 	if ((a = rtnl_addr_get_broadcast(addr)))
     80 		nl_dump_line(p, "%s_BROADCAST=%s\n", pfx,
     81 			     nl_addr2str(a, buf, sizeof(buf)));
     82 
     83 	nl_dump_line(p, "%s_SCOPE=%s\n", pfx,
     84 		     rtnl_scope2str(rtnl_addr_get_scope(addr),
     85 				    buf, sizeof(buf)));
     86 
     87 	if ((s = rtnl_addr_get_label(addr)))
     88 		nl_dump_line(p, "%s_LABEL=%s\n", pfx, s);
     89 
     90 	rtnl_addr_flags2str(rtnl_addr_get_flags(addr), buf, sizeof(buf));
     91 	if (buf[0])
     92 		nl_dump_line(p, "%s_FLAGS=%s\n", pfx, buf);
     93 
     94 	nl_dump_line(p, "%s_CACHEINFO_VALID=%u\n", pfx,
     95 		     rtnl_addr_get_valid_lifetime(addr));
     96 
     97 #if 0
     98 	if (addr->ce_mask & ADDR_ATTR_CACHEINFO) {
     99 		struct rtnl_addr_cacheinfo *ci = &addr->a_cacheinfo;
    100 
    101 		nl_dump_line(p, "ADDR_CACHEINFO_PREFERRED=%u\n",
    102 			     ci->aci_prefered);
    103 
    104 		nl_dump_line(p, "ADDR_CACHEINFO_CREATED=%u\n", ci->aci_cstamp);
    105 		nl_dump_line(p, "ADDR_CACHEINFO_LASTUPDATE=%u\n",
    106 			     ci->aci_tstamp);
    107 	}
    108 #endif
    109 }
    110 
    111 int main(int argc, char *argv[])
    112 {
    113 	struct nl_sock *sock;
    114 	struct rtnl_addr *addr;
    115 	struct nl_cache *link_cache, *addr_cache;
    116 	struct nl_dump_params params = {
    117 		.dp_type = NL_DUMP_LINE,
    118 		.dp_nl_cb = print_prefix,
    119 		.dp_fd = stdout,
    120 	};
    121 	int dump_env = 0;
    122 
    123 	sock = nl_cli_alloc_socket();
    124 	nl_cli_connect(sock, NETLINK_ROUTE);
    125 	link_cache = nl_cli_link_alloc_cache(sock);
    126 	addr_cache = nl_cli_addr_alloc_cache(sock);
    127 	addr = nl_cli_addr_alloc();
    128 
    129 	for (;;) {
    130 		int c, optidx = 0;
    131 		enum {
    132 			ARG_FAMILY = 257,
    133 			ARG_LABEL = 258,
    134 			ARG_PEER,
    135 			ARG_SCOPE,
    136 			ARG_BROADCAST,
    137 			ARG_DETAILS,
    138 			ARG_ENV,
    139 			ARG_PREFIX,
    140 			ARG_PREFERRED,
    141 			ARG_VALID,
    142 		};
    143 		static struct option long_opts[] = {
    144 			{ "details", 0, 0, ARG_DETAILS },
    145 			{ "env", 0, 0, ARG_ENV },
    146 			{ "prefix", 1, 0, ARG_PREFIX },
    147 			{ "help", 0, 0, 'h' },
    148 			{ "version", 0, 0, 'v' },
    149 			{ "local", 1, 0, 'a' },
    150 			{ "dev", 1, 0, 'd' },
    151 			{ "family", 1, 0, ARG_FAMILY },
    152 			{ "label", 1, 0, ARG_LABEL },
    153 			{ "peer", 1, 0, ARG_PEER },
    154 			{ "scope", 1, 0, ARG_SCOPE },
    155 			{ "broadcast", 1, 0, ARG_BROADCAST },
    156 			{ "preferred", 1, 0, ARG_PREFERRED },
    157 			{ "valid", 1, 0, ARG_VALID },
    158 			{ 0, 0, 0, 0 }
    159 		};
    160 
    161 		c = getopt_long(argc, argv, "46hva:d:", long_opts, &optidx);
    162 		if (c == -1)
    163 			break;
    164 
    165 		switch (c) {
    166 		case '?': exit(NLE_INVAL);
    167 		case '4': rtnl_addr_set_family(addr, AF_INET); break;
    168 		case '6': rtnl_addr_set_family(addr, AF_INET6); break;
    169 		case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break;
    170 		case ARG_ENV: dump_env = 1; break;
    171 		case ARG_PREFIX: prefix = strdup(optarg); break;
    172 		case 'h': print_usage(); break;
    173 		case 'v': nl_cli_print_version(); break;
    174 		case 'a': nl_cli_addr_parse_local(addr, optarg); break;
    175 		case 'd': nl_cli_addr_parse_dev(addr, link_cache, optarg); break;
    176 		case ARG_FAMILY: nl_cli_addr_parse_family(addr, optarg); break;
    177 		case ARG_LABEL: nl_cli_addr_parse_label(addr, optarg); break;
    178 		case ARG_PEER: nl_cli_addr_parse_peer(addr, optarg); break;
    179 		case ARG_SCOPE: nl_cli_addr_parse_scope(addr, optarg); break;
    180 		case ARG_BROADCAST: nl_cli_addr_parse_broadcast(addr, optarg); break;
    181 		case ARG_PREFERRED: nl_cli_addr_parse_preferred(addr, optarg); break;
    182 		case ARG_VALID: nl_cli_addr_parse_valid(addr, optarg); break;
    183 		}
    184 	}
    185 
    186 	if (dump_env)
    187 		nl_cache_foreach_filter(addr_cache, OBJ_CAST(addr), env_dump,
    188 					&params);
    189 	else
    190 		nl_cache_dump_filter(addr_cache, &params, OBJ_CAST(addr));
    191 
    192 	return 0;
    193 }
    194