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@suug.ch>
10 */
11
12 #include <netlink/cli/utils.h>
13 #include <netlink/cli/link.h>
14
print_usage(void)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
list_stat_names(void)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
dump_stat(struct rtnl_link * link,int id)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
dump_stats(struct nl_object * obj,void * arg)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
main(int argc,char * argv[])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