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      1 /*
      2  * src/idiag-socket-details.c     List socket details
      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) 2013 Sassano Systems LLC <joe (at) sassanosystems.com>
      9  */
     10 
     11 #include <netlink/cli/utils.h>
     12 #include <netlink/idiag/idiagnl.h>
     13 #include <netlink/idiag/msg.h>
     14 #include <linux/netlink.h>
     15 
     16 static void print_usage(void)
     17 {
     18 	printf(
     19 "Usage: idiag-socket-details [OPTION]\n"
     20 "\n"
     21 "Options\n"
     22 "     --summary		    Show socket detail summary.\n"
     23 "     --details             Show socket details on multiple lines.\n"
     24 "     --stats               Show full socket statistics.\n"
     25 " -h, --help                Show this help.\n"
     26 " -v, --version             Show versioning information.\n"
     27 	);
     28 	exit(0);
     29 }
     30 
     31 int main(int argc, char *argv[])
     32 {
     33 	struct nl_sock *sock;
     34 	struct nl_cache *idiag_cache;
     35 	struct nl_dump_params params = {
     36 		.dp_type = NL_DUMP_LINE,
     37 		.dp_nl_cb = NULL,
     38 		.dp_fd = stdout,
     39 	};
     40 	int err = 0;
     41 
     42 	sock = nl_cli_alloc_socket();
     43 	nl_cli_connect(sock, NETLINK_INET_DIAG);
     44 	for (;;) {
     45 		int c, optidx = 0;
     46 		enum {
     47 			ARG_SUMMARY = 257,
     48 			ARG_DETAILS = 258,
     49 			ARG_STATS = 259,
     50 			ARG_FAMILY,
     51 		};
     52 		static struct option long_opts[] = {
     53 			{ "details", 0, 0, ARG_DETAILS },
     54 			{ "summary", 0, 0, ARG_SUMMARY },
     55 			{ "stats", 0, 0, ARG_STATS},
     56 			{ "help", 0, 0, 'h' },
     57 			{ "version", 0, 0, 'v' },
     58 			{ 0, 0, 0, 0 }
     59 		};
     60 
     61 		c = getopt_long(argc, argv, "hv", long_opts, &optidx);
     62 		if (c == -1)
     63 			break;
     64 
     65 		switch (c) {
     66 		case '?': exit(NLE_INVAL);
     67 		case ARG_SUMMARY: params.dp_type = NL_DUMP_LINE; break;
     68 		case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break;
     69 		case ARG_STATS:   params.dp_type = NL_DUMP_STATS; break;
     70 		case 'h': print_usage(); break;
     71 		case 'v': nl_cli_print_version(); break;
     72 		}
     73 	}
     74 
     75 	if ((err = idiagnl_msg_alloc_cache(sock, AF_INET, IDIAG_SS_ALL,
     76 					&idiag_cache))) {
     77 		nl_cli_fatal(err, "Unable to allocate idiag msg cache: %s",
     78 				nl_geterror(err));
     79 	}
     80 
     81 	nl_cache_mngt_provide(idiag_cache);
     82 
     83 	nl_cache_dump_filter(idiag_cache, &params, NULL);
     84 
     85 	nl_cache_mngt_unprovide(idiag_cache);
     86 	nl_cache_free(idiag_cache);
     87 	nl_socket_free(sock);
     88 
     89 	return 0;
     90 }
     91