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

libnl 3.12.0

nl-route-add.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 int quiet = 0;
15static struct nl_cache *link_cache, *route_cache;
16
17static void print_usage(void)
18{
19 printf(
20 "Usage: nl-route-add [OPTION]... [ROUTE]\n"
21 "\n"
22 "Options\n"
23 " -q, --quiet Do not print informal notifications\n"
24 " -h, --help Show this help\n"
25 " -v, --version Show versioning information\n"
26 "\n"
27 "Route Options\n"
28 " -d, --dst=ADDR destination prefix, e.g. 10.10.0.0/16\n"
29 " -n, --nexthop=NH nexthop configuration:\n"
30 " dev=DEV route via device\n"
31 " weight=WEIGHT weight of nexthop\n"
32 " flags=FLAGS\n"
33 " via=GATEWAY route via other node\n"
34 " realms=REALMS\n"
35 " e.g. dev=eth0,via=192.168.1.12\n"
36 " -t, --table=TABLE Routing table\n"
37 " --family=FAMILY Address family\n"
38 " --src=ADDR Source prefix\n"
39 " --iif=DEV Incomming interface\n"
40 " --pref-src=ADDR Preferred source address\n"
41 " --metrics=OPTS Metrics configurations\n"
42 " --priority=NUM Priotity\n"
43 " --scope=SCOPE Scope\n"
44 " --protocol=PROTO Protocol\n"
45 " --type=TYPE { unicast | local | broadcast | multicast }\n"
46 );
47 exit(0);
48}
49
50int main(int argc, char *argv[])
51{
52 struct nl_sock *sock;
53 struct rtnl_route *route;
54 struct nl_dump_params dp = {
55 .dp_type = NL_DUMP_LINE,
56 .dp_fd = stdout,
57 };
58 int err = 1;
59
60 sock = nl_cli_alloc_socket();
61 nl_cli_connect(sock, NETLINK_ROUTE);
62 link_cache = nl_cli_link_alloc_cache(sock);
63 route_cache = nl_cli_route_alloc_cache(sock, 0);
64 route = nl_cli_route_alloc();
65
66 for (;;) {
67 int c, optidx = 0;
68 enum {
69 ARG_FAMILY = 257,
70 ARG_SRC = 258,
71 ARG_IIF,
72 ARG_PREF_SRC,
73 ARG_METRICS,
74 ARG_PRIORITY,
75 ARG_SCOPE,
76 ARG_PROTOCOL,
77 ARG_TYPE,
78 };
79 static struct option long_opts[] = {
80 { "quiet", 0, 0, 'q' },
81 { "help", 0, 0, 'h' },
82 { "version", 0, 0, 'v' },
83 { "dst", 1, 0, 'd' },
84 { "nexthop", 1, 0, 'n' },
85 { "table", 1, 0, 't' },
86 { "family", 1, 0, ARG_FAMILY },
87 { "src", 1, 0, ARG_SRC },
88 { "iif", 1, 0, ARG_IIF },
89 { "pref-src", 1, 0, ARG_PREF_SRC },
90 { "metrics", 1, 0, ARG_METRICS },
91 { "priority", 1, 0, ARG_PRIORITY },
92 { "scope", 1, 0, ARG_SCOPE },
93 { "protocol", 1, 0, ARG_PROTOCOL },
94 { "type", 1, 0, ARG_TYPE },
95 { 0, 0, 0, 0 }
96 };
97
98 c = getopt_long(argc, argv, "qhvd:n:t:", long_opts, &optidx);
99 if (c == -1)
100 break;
101
102 switch (c) {
103 case 'q': quiet = 1; 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 if ((err = rtnl_route_add(sock, route, NLM_F_EXCL)) < 0)
122 nl_cli_fatal(err, "Unable to add route: %s", nl_geterror(err));
123
124 if (!quiet) {
125 printf("Added ");
126 nl_object_dump(OBJ_CAST(route), &dp);
127 }
128
129 return 0;
130}
nl_cli_fatal
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition utils.c:71
nl_object_dump
void nl_object_dump(struct nl_object *obj, struct nl_dump_params *params)
Dump this object according to the specified parameters.
Definition object.c:294
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