1 /* 2 * src/nl-link-stats.c Retrieve link statistics 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation version 2.1 7 * of the License. 8 * 9 * Copyright (c) 2003-2009 Thomas Graf <tgraf (at) suug.ch> 10 */ 11 12 #include <netlink/cli/utils.h> 13 #include <netlink/cli/link.h> 14 15 static void print_usage(void) 16 { 17 printf( 18 "Usage: nl-link-stats [OPTION]... [LINK] [ListOfStats]\n" 19 "\n" 20 "Options\n" 21 " -l, --list List available statistic names\n" 22 " -h, --help Show this help\n" 23 " -v, --version Show versioning information\n" 24 "\n" 25 "Link Options\n" 26 " -n, --name=NAME link name\n" 27 " -i, --index=NUM interface index\n" 28 ); 29 exit(0); 30 } 31 32 static void list_stat_names(void) 33 { 34 char buf[64]; 35 int i; 36 37 for (i = 0; i < RTNL_LINK_STATS_MAX; i++) 38 printf("%s\n", rtnl_link_stat2str(i, buf, sizeof(buf))); 39 40 exit(0); 41 } 42 43 static int gargc; 44 45 static void dump_stat(struct rtnl_link *link, int id) 46 { 47 uint64_t st = rtnl_link_get_stat(link, id); 48 char buf[64]; 49 50 printf("%s.%s %" PRIu64 "\n", rtnl_link_get_name(link), 51 rtnl_link_stat2str(id, buf, sizeof(buf)), st); 52 } 53 54 static void dump_stats(struct nl_object *obj, void *arg) 55 { 56 struct rtnl_link *link = (struct rtnl_link *) obj; 57 char **argv = arg; 58 59 if (optind >= gargc) { 60 int i; 61 62 for (i = 0; i < RTNL_LINK_STATS_MAX; i++) 63 dump_stat(link, i); 64 } else { 65 while (optind < gargc) { 66 int id = rtnl_link_str2stat(argv[optind]); 67 68 if (id < 0) 69 fprintf(stderr, "Warning: Unknown statistic " 70 "\"%s\"\n", argv[optind]); 71 else 72 dump_stat(link, id); 73 74 optind++; 75 } 76 } 77 } 78 79 int main(int argc, char *argv[]) 80 { 81 struct nl_sock *sock; 82 struct nl_cache *link_cache; 83 struct rtnl_link *link; 84 85 sock = nl_cli_alloc_socket(); 86 nl_cli_connect(sock, NETLINK_ROUTE); 87 link_cache = nl_cli_link_alloc_cache(sock); 88 link = nl_cli_link_alloc(); 89 90 for (;;) { 91 int c, optidx = 0; 92 static struct option long_opts[] = { 93 { "list", 0, 0, 'l' }, 94 { "help", 0, 0, 'h' }, 95 { "version", 0, 0, 'v' }, 96 { "name", 1, 0, 'n' }, 97 { "index", 1, 0, 'i' }, 98 { 0, 0, 0, 0 } 99 }; 100 101 c = getopt_long(argc, argv, "lhvn:i:", long_opts, &optidx); 102 if (c == -1) 103 break; 104 105 switch (c) { 106 case 'l': list_stat_names(); break; 107 case 'h': print_usage(); break; 108 case 'v': nl_cli_print_version(); break; 109 case 'n': nl_cli_link_parse_name(link, optarg); break; 110 case 'i': nl_cli_link_parse_ifindex(link, optarg); break; 111 } 112 } 113 114 gargc = argc; 115 nl_cache_foreach_filter(link_cache, OBJ_CAST(link), dump_stats, argv); 116 117 return 0; 118 } 119 120
