libnl: /data/src/libnl3/src/nl-route-add.c Source File

libnl 3.7.0

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 <netlink/cli/utils.h>
7 #include <netlink/cli/route.h>
8 #include <netlink/cli/link.h>
9
10 #include <linux/netlink.h>
11
12 static int quiet = 0;
13 static struct nl_cache *link_cache, *route_cache;
14
15 static void print_usage(void)
16 {
17 printf(
18 "Usage: nl-route-add [OPTION]... [ROUTE]\n"
19 "\n"
20 "Options\n"
21 " -q, --quiet Do not print informal notifications\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
48 int main(int argc, char *argv[])
49 {
50 struct nl_sock *sock;
51 struct rtnl_route *route;
52 struct nl_dump_params dp = {
53 .dp_type = NL_DUMP_LINE,
54 .dp_fd = stdout,
55 };
56 int err = 1;
57
58 sock = nl_cli_alloc_socket();
59 nl_cli_connect(sock, NETLINK_ROUTE);
60 link_cache = nl_cli_link_alloc_cache(sock);
61 route_cache = nl_cli_route_alloc_cache(sock, 0);
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 { "quiet", 0, 0, 'q' },
79 { "help", 0, 0, 'h' },
80 { "version", 0, 0, 'v' },
81 { "dst", 1, 0, 'd' },
82 { "nexthop", 1, 0, 'n' },
83 { "table", 1, 0, 't' },
84 { "family", 1, 0, ARG_FAMILY },
85 { "src", 1, 0, ARG_SRC },
86 { "iif", 1, 0, ARG_IIF },
87 { "pref-src", 1, 0, ARG_PREF_SRC },
88 { "metrics", 1, 0, ARG_METRICS },
89 { "priority", 1, 0, ARG_PRIORITY },
90 { "scope", 1, 0, ARG_SCOPE },
91 { "protocol", 1, 0, ARG_PROTOCOL },
92 { "type", 1, 0, ARG_TYPE },
93 { 0, 0, 0, 0 }
94 };
95
96 c = getopt_long(argc, argv, "qhvd:n:t:", long_opts, &optidx);
97 if (c == -1)
98 break;
99
100 switch (c) {
101 case 'q': quiet = 1; break;
102 case 'h': print_usage(); break;
103 case 'v': nl_cli_print_version(); break;
104 case 'd': nl_cli_route_parse_dst(route, optarg); break;
105 case 'n': nl_cli_route_parse_nexthop(route, optarg, link_cache); break;
106 case 't': nl_cli_route_parse_table(route, optarg); break;
107 case ARG_FAMILY: nl_cli_route_parse_family(route, optarg); break;
108 case ARG_SRC: nl_cli_route_parse_src(route, optarg); break;
109 case ARG_IIF: nl_cli_route_parse_iif(route, optarg, link_cache); break;
110 case ARG_PREF_SRC: nl_cli_route_parse_pref_src(route, optarg); break;
111 case ARG_METRICS: nl_cli_route_parse_metric(route, optarg); break;
112 case ARG_PRIORITY: nl_cli_route_parse_prio(route, optarg); break;
113 case ARG_SCOPE: nl_cli_route_parse_scope(route, optarg); break;
114 case ARG_PROTOCOL: nl_cli_route_parse_protocol(route, optarg); break;
115 case ARG_TYPE: nl_cli_route_parse_type(route, optarg); break;
116 }
117 }
118
119 if ((err = rtnl_route_add(sock, route, NLM_F_EXCL)) < 0)
120 nl_cli_fatal(err, "Unable to add route: %s", nl_geterror(err));
121
122 if (!quiet) {
123 printf("Added ");
124 nl_object_dump(OBJ_CAST(route), &dp);
125 }
126
127 return 0;
128 }
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:287
NL_DUMP_LINE
@ NL_DUMP_LINE
Dump object briefly on one line.
Definition: types.h:16
nl_dump_params
Dumping parameters.
Definition: types.h:28
nl_dump_params::dp_type
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:32