libnl 3.5.0

nl-route-add.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * src/nl-route-add.c Route addition utility
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation version 2.1
8 * of the License.
9 *
10 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
11 */
12
13 #include <netlink/cli/utils.h>
14 #include <netlink/cli/route.h>
15 #include <netlink/cli/link.h>
16
17 #include <linux/netlink.h>
18
19 static int quiet = 0;
20 static struct nl_cache *link_cache, *route_cache;
21
22 static void print_usage(void)
23 {
24 printf(
25 "Usage: nl-route-add [OPTION]... [ROUTE]\n"
26 "\n"
27 "Options\n"
28 " -q, --quiet Do not print informal notifications\n"
29 " -h, --help Show this help\n"
30 " -v, --version Show versioning information\n"
31 "\n"
32 "Route Options\n"
33 " -d, --dst=ADDR destination prefix, e.g. 10.10.0.0/16\n"
34 " -n, --nexthop=NH nexthop configuration:\n"
35 " dev=DEV route via device\n"
36 " weight=WEIGHT weight of nexthop\n"
37 " flags=FLAGS\n"
38 " via=GATEWAY route via other node\n"
39 " realms=REALMS\n"
40 " e.g. dev=eth0,via=192.168.1.12\n"
41 " -t, --table=TABLE Routing table\n"
42 " --family=FAMILY Address family\n"
43 " --src=ADDR Source prefix\n"
44 " --iif=DEV Incomming interface\n"
45 " --pref-src=ADDR Preferred source address\n"
46 " --metrics=OPTS Metrics configurations\n"
47 " --priority=NUM Priotity\n"
48 " --scope=SCOPE Scope\n"
49 " --protocol=PROTO Protocol\n"
50 " --type=TYPE { unicast | local | broadcast | multicast }\n"
51 );
52 exit(0);
53 }
54
55 int main(int argc, char *argv[])
56 {
57 struct nl_sock *sock;
58 struct rtnl_route *route;
59 struct nl_dump_params dp = {
60 .dp_type = NL_DUMP_LINE,
61 .dp_fd = stdout,
62 };
63 int err = 1;
64
65 sock = nl_cli_alloc_socket();
66 nl_cli_connect(sock, NETLINK_ROUTE);
67 link_cache = nl_cli_link_alloc_cache(sock);
68 route_cache = nl_cli_route_alloc_cache(sock, 0);
69 route = nl_cli_route_alloc();
70
71 for (;;) {
72 int c, optidx = 0;
73 enum {
74 ARG_FAMILY = 257,
75 ARG_SRC = 258,
76 ARG_IIF,
77 ARG_PREF_SRC,
78 ARG_METRICS,
79 ARG_PRIORITY,
80 ARG_SCOPE,
81 ARG_PROTOCOL,
82 ARG_TYPE,
83 };
84 static struct option long_opts[] = {
85 { "quiet", 0, 0, 'q' },
86 { "help", 0, 0, 'h' },
87 { "version", 0, 0, 'v' },
88 { "dst", 1, 0, 'd' },
89 { "nexthop", 1, 0, 'n' },
90 { "table", 1, 0, 't' },
91 { "family", 1, 0, ARG_FAMILY },
92 { "src", 1, 0, ARG_SRC },
93 { "iif", 1, 0, ARG_IIF },
94 { "pref-src", 1, 0, ARG_PREF_SRC },
95 { "metrics", 1, 0, ARG_METRICS },
96 { "priority", 1, 0, ARG_PRIORITY },
97 { "scope", 1, 0, ARG_SCOPE },
98 { "protocol", 1, 0, ARG_PROTOCOL },
99 { "type", 1, 0, ARG_TYPE },
100 { 0, 0, 0, 0 }
101 };
102
103 c = getopt_long(argc, argv, "qhvd:n:t:", long_opts, &optidx);
104 if (c == -1)
105 break;
106
107 switch (c) {
108 case 'q': quiet = 1; break;
109 case 'h': print_usage(); break;
110 case 'v': nl_cli_print_version(); break;
111 case 'd': nl_cli_route_parse_dst(route, optarg); break;
112 case 'n': nl_cli_route_parse_nexthop(route, optarg, link_cache); break;
113 case 't': nl_cli_route_parse_table(route, optarg); break;
114 case ARG_FAMILY: nl_cli_route_parse_family(route, optarg); break;
115 case ARG_SRC: nl_cli_route_parse_src(route, optarg); break;
116 case ARG_IIF: nl_cli_route_parse_iif(route, optarg, link_cache); break;
117 case ARG_PREF_SRC: nl_cli_route_parse_pref_src(route, optarg); break;
118 case ARG_METRICS: nl_cli_route_parse_metric(route, optarg); break;
119 case ARG_PRIORITY: nl_cli_route_parse_prio(route, optarg); break;
120 case ARG_SCOPE: nl_cli_route_parse_scope(route, optarg); break;
121 case ARG_PROTOCOL: nl_cli_route_parse_protocol(route, optarg); break;
122 case ARG_TYPE: nl_cli_route_parse_type(route, optarg); break;
123 }
124 }
125
126 if ((err = rtnl_route_add(sock, route, NLM_F_EXCL)) < 0)
127 nl_cli_fatal(err, "Unable to add route: %s", nl_geterror(err));
128
129 if (!quiet) {
130 printf("Added ");
131 nl_object_dump(OBJ_CAST(route), &dp);
132 }
133
134 return 0;
135 }
NL_DUMP_LINE
Dump object briefly on one line.
Definition: types.h:22
nl_dump_params::dp_type
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:38
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:289
nl_cli_fatal
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition: utils.c:78
nl_dump_params
Dumping parameters.
Definition: types.h:33