libnl: /data/src/libnl/src/nl-route-list.c Source File

libnl 3.12.0

nl-route-list.c
1/* SPDX-License-Identifier: LGPL-2.1-only */
2/*
3 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
4 */
5
6#include "nl-default.h"
7
8#include <linux/netlink.h>
9
10#include <netlink/cli/utils.h>
11#include <netlink/cli/route.h>
12#include <netlink/cli/link.h>
13
14static void print_usage(void)
15{
16 printf(
17 "Usage: nl-route-list [OPTION]... [ROUTE]\n"
18 "\n"
19 "Options\n"
20 " -c, --cache List the contents of the route cache\n"
21 " -f, --format=TYPE Output format { brief | details | stats }\n"
22 " -h, --help Show this help\n"
23 " -v, --version Show versioning information\n"
24 "\n"
25 "Route Options\n"
26 " -d, --dst=ADDR destination prefix, e.g. 10.10.0.0/16\n"
27 " -n, --nexthop=NH nexthop configuration:\n"
28 " dev=DEV route via device\n"
29 " weight=WEIGHT weight of nexthop\n"
30 " flags=FLAGS\n"
31 " via=GATEWAY route via other node\n"
32 " realms=REALMS\n"
33 " e.g. dev=eth0,via=192.168.1.12\n"
34 " -t, --table=TABLE Routing table\n"
35 " --family=FAMILY Address family\n"
36 " --src=ADDR Source prefix\n"
37 " --iif=DEV Incomming interface\n"
38 " --pref-src=ADDR Preferred source address\n"
39 " --metrics=OPTS Metrics configurations\n"
40 " --priority=NUM Priotity\n"
41 " --scope=SCOPE Scope\n"
42 " --protocol=PROTO Protocol\n"
43 " --type=TYPE { unicast | local | broadcast | multicast }\n"
44 );
45 exit(0);
46}
47
48int main(int argc, char *argv[])
49{
50 struct nl_sock *sock;
51 struct nl_cache *link_cache, *route_cache;
52 struct rtnl_route *route;
53 struct nl_dump_params params = {
54 .dp_fd = stdout,
55 .dp_type = NL_DUMP_LINE,
56 };
57 int print_cache = 0;
58
59 sock = nl_cli_alloc_socket();
60 nl_cli_connect(sock, NETLINK_ROUTE);
61 link_cache = nl_cli_link_alloc_cache(sock);
62 route = nl_cli_route_alloc();
63
64 for (;;) {
65 int c, optidx = 0;
66 enum {
67 ARG_FAMILY = 257,
68 ARG_SRC = 258,
69 ARG_IIF,
70 ARG_PREF_SRC,
71 ARG_METRICS,
72 ARG_PRIORITY,
73 ARG_SCOPE,
74 ARG_PROTOCOL,
75 ARG_TYPE,
76 };
77 static struct option long_opts[] = {
78 { "cache", 0, 0, 'c' },
79 { "format", 1, 0, 'f' },
80 { "help", 0, 0, 'h' },
81 { "version", 0, 0, 'v' },
82 { "dst", 1, 0, 'd' },
83 { "nexthop", 1, 0, 'n' },
84 { "table", 1, 0, 't' },
85 { "family", 1, 0, ARG_FAMILY },
86 { "src", 1, 0, ARG_SRC },
87 { "iif", 1, 0, ARG_IIF },
88 { "pref-src", 1, 0, ARG_PREF_SRC },
89 { "metrics", 1, 0, ARG_METRICS },
90 { "priority", 1, 0, ARG_PRIORITY },
91 { "scope", 1, 0, ARG_SCOPE },
92 { "protocol", 1, 0, ARG_PROTOCOL },
93 { "type", 1, 0, ARG_TYPE },
94 { 0, 0, 0, 0 }
95 };
96
97 c = getopt_long(argc, argv, "cf:hvd:n:t:", long_opts, &optidx);
98 if (c == -1)
99 break;
100
101 switch (c) {
102 case 'c': print_cache = 1; break;
103 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
104 case 'h': print_usage(); break;
105 case 'v': nl_cli_print_version(); break;
106 case 'd': nl_cli_route_parse_dst(route, optarg); break;
107 case 'n': nl_cli_route_parse_nexthop(route, optarg, link_cache); break;
108 case 't': nl_cli_route_parse_table(route, optarg); break;
109 case ARG_FAMILY: nl_cli_route_parse_family(route, optarg); break;
110 case ARG_SRC: nl_cli_route_parse_src(route, optarg); break;
111 case ARG_IIF: nl_cli_route_parse_iif(route, optarg, link_cache); break;
112 case ARG_PREF_SRC: nl_cli_route_parse_pref_src(route, optarg); break;
113 case ARG_METRICS: nl_cli_route_parse_metric(route, optarg); break;
114 case ARG_PRIORITY: nl_cli_route_parse_prio(route, optarg); break;
115 case ARG_SCOPE: nl_cli_route_parse_scope(route, optarg); break;
116 case ARG_PROTOCOL: nl_cli_route_parse_protocol(route, optarg); break;
117 case ARG_TYPE: nl_cli_route_parse_type(route, optarg); break;
118 }
119 }
120
121 route_cache = nl_cli_route_alloc_cache(sock,
122 print_cache ? ROUTE_CACHE_CONTENT : 0);
123
124 nl_cache_dump_filter(route_cache, &params, OBJ_CAST(route));
125
126 return 0;
127}
nl_cache_dump_filter
void nl_cache_dump_filter(struct nl_cache *cache, struct nl_dump_params *params, struct nl_object *filter)
Dump all elements of a cache (filtered).
Definition cache.c:1219
ROUTE_CACHE_CONTENT
#define ROUTE_CACHE_CONTENT
When passed to rtnl_route_alloc_cache() the cache will correspond to the contents of the routing cach...
Definition route.h:27
NL_DUMP_LINE
@ NL_DUMP_LINE
Dump object briefly on one line.
Definition types.h:20
nl_dump_params
Dumping parameters.
Definition types.h:32