1/*
2 * src/nl-cls-list.c     	List classifiers
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) 2008 Thomas Graf <tgraf@suug.ch>
10 */
11
12#include "cls/utils.h"
13
14static struct nl_sock *sock;
15static struct rtnl_cls *cls;
16static struct nl_dump_params params = {
17	.dp_type = NL_DUMP_LINE,
18};
19
20static void print_usage(void)
21{
22	printf(
23	"Usage: nl-cls-list [OPTION]... [CLASSIFIER]\n"
24	"\n"
25	"Options\n"
26	" -f, --format=TYPE     Output format { brief | details | stats }\n"
27	" -h, --help            Show this help text.\n"
28	" -v, --version         Show versioning information.\n"
29	"\n"
30	"Classifier Options\n"
31	" -d, --dev=DEV         Device the classifier should be assigned to.\n"
32	" -p, --parent=HANDLE   Parent qdisc/class\n"
33	"     --proto=PROTO     Protocol\n"
34	"     --prio=NUM        Priority\n"
35	"     --id=NUM          Identifier\n"
36	);
37	exit(0);
38}
39
40static void print_cls(struct nl_object *obj, void *arg)
41{
42	struct nl_cache *cls_cache;
43	int err, ifindex;
44
45	if (obj)
46		ifindex = rtnl_link_get_ifindex((struct rtnl_link *) obj);
47	else
48		ifindex = rtnl_cls_get_ifindex(cls);
49
50	err = rtnl_cls_alloc_cache(sock, ifindex, rtnl_cls_get_parent(cls),
51				   &cls_cache);
52	if (err < 0)
53		fatal(err, "Unable to allocate classifier cache: %s",
54		      nl_geterror(err));
55
56	nl_cache_dump_filter(cls_cache, &params, OBJ_CAST(cls));
57	nl_cache_free(cls_cache);
58}
59
60int main(int argc, char *argv[])
61{
62	struct nl_cache *link_cache;
63	int dev = 0;
64
65	params.dp_fd = stdout;
66	sock = nlt_alloc_socket();
67	nlt_connect(sock, NETLINK_ROUTE);
68	link_cache = nlt_alloc_link_cache(sock);
69	cls = nlt_alloc_cls();
70
71	for (;;) {
72		int c, optidx = 0;
73		enum {
74			ARG_PROTO = 257,
75			ARG_PRIO = 258,
76			ARG_ID,
77		};
78		static struct option long_opts[] = {
79			{ "format", 1, 0, 'f' },
80			{ "help", 0, 0, 'h' },
81			{ "version", 0, 0, 'v' },
82			{ "dev", 1, 0, 'd' },
83			{ "parent", 1, 0, 'p' },
84			{ "proto", 1, 0, ARG_PROTO },
85			{ "prio", 1, 0, ARG_PRIO },
86			{ "id", 1, 0, ARG_ID },
87			{ 0, 0, 0, 0 }
88		};
89
90		c = getopt_long(argc, argv, "+f:qhva:d:", long_opts, &optidx);
91		if (c == -1)
92			break;
93
94		switch (c) {
95		case '?': exit(NLE_INVAL);
96		case 'f': params.dp_type = nlt_parse_dumptype(optarg); break;
97		case 'h': print_usage(); break;
98		case 'v': nlt_print_version(); break;
99		case 'd': dev = 1; parse_dev(cls, link_cache, optarg); break;
100		case 'p': parse_parent(cls, optarg); break;
101		case ARG_PRIO: parse_prio(cls, optarg); break;
102		case ARG_ID: parse_handle(cls, optarg); break;
103		case ARG_PROTO: parse_proto(cls, optarg); break;
104		}
105 	}
106
107	if (!dev)
108		nl_cache_foreach(link_cache, print_cls, NULL);
109	else
110		print_cls(NULL, NULL);
111
112	return 0;
113}
114