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
15static 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
32static 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
43static int gargc;
44
45static 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
54static 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
79int 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