libnl: /data/src/libnl3/src/nf-ct-add.c Source File

libnl 3.10.0

nf-ct-add.c
1/* SPDX-License-Identifier: LGPL-2.1-only */
2/*
3 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
4 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
5 * Copyright (c) 2007 Secure Computing Corporation
6 */
7
8#include "nl-default.h"
9
10#include <linux/rtnetlink.h>
11
12#include <netlink/cli/utils.h>
13#include <netlink/cli/ct.h>
14
15static int quiet = 0;
16
17static void print_usage(void)
18{
19 printf(
20 "Usage: nf-ct-add [OPTION]... [CONNTRACK ENTRY]\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 "Conntrack Selection\n"
28 " -p, --proto=PROTOCOL Protocol\n"
29 " --orig-src=ADDR Original source address\n"
30 " --orig-sport=PORT Original source port\n"
31 " --orig-dst=ADDR Original destination address\n"
32 " --orig-dport=PORT Original destination port\n"
33 " --reply-src=ADDR Reply source address\n"
34 " --reply-sport=PORT Reply source port\n"
35 " --reply-dst=ADDR Reply destination address\n"
36 " --reply-dport=PORT Reply destination port\n"
37 " -F, --family=FAMILY Address family\n"
38 " --mark=NUM Mark value\n"
39 " --timeout=NUM Timeout value\n"
40 " --status Bitset representing status of connection.\n"
41 " --zone=NUM Zone value\n"
42 );
43 exit(0);
44}
45
46int main(int argc, char *argv[])
47{
48 struct nl_sock *sock;
49 struct nfnl_ct *ct;
50 struct nl_dump_params params = {
51 .dp_type = NL_DUMP_LINE,
52 .dp_fd = stdout,
53 };
54 int err, nlflags = NLM_F_CREATE;
55
56 ct = nl_cli_ct_alloc();
57
58 for (;;) {
59 int c, optidx = 0;
60 enum {
61 ARG_ORIG_SRC = 257,
62 ARG_ORIG_SPORT = 258,
63 ARG_ORIG_DST,
64 ARG_ORIG_DPORT,
65 ARG_REPLY_SRC,
66 ARG_REPLY_SPORT,
67 ARG_REPLY_DST,
68 ARG_REPLY_DPORT,
69 ARG_MARK,
70 ARG_TIMEOUT,
71 ARG_STATUS,
72 ARG_ZONE,
73 };
74 static struct option long_opts[] = {
75 { "quiet", 0, 0, 'q' },
76 { "help", 0, 0, 'h' },
77 { "version", 0, 0, 'v' },
78 { "proto", 1, 0, 'p' },
79 { "orig-src", 1, 0, ARG_ORIG_SRC },
80 { "orig-sport", 1, 0, ARG_ORIG_SPORT },
81 { "orig-dst", 1, 0, ARG_ORIG_DST },
82 { "orig-dport", 1, 0, ARG_ORIG_DPORT },
83 { "reply-src", 1, 0, ARG_REPLY_SRC },
84 { "reply-sport", 1, 0, ARG_REPLY_SPORT },
85 { "reply-dst", 1, 0, ARG_REPLY_DST },
86 { "reply-dport", 1, 0, ARG_REPLY_DPORT },
87 { "family", 1, 0, 'F' },
88 { "mark", 1, 0, ARG_MARK },
89 { "timeout", 1, 0, ARG_TIMEOUT },
90 { "status", 1, 0, ARG_STATUS },
91 { "zone", 1, 0, ARG_ZONE },
92 { 0, 0, 0, 0 }
93 };
94
95 c = getopt_long(argc, argv, "46q:hv:p:F:", long_opts, &optidx);
96 if (c == -1)
97 break;
98
99 switch (c) {
100 case '?': exit(NLE_INVAL);
101 case 'q': quiet = 1; break;
102 case '4': nfnl_ct_set_family(ct, AF_INET); break;
103 case '6': nfnl_ct_set_family(ct, AF_INET6); break;
104 case 'h': print_usage(); break;
105 case 'v': nl_cli_print_version(); break;
106 case 'p': nl_cli_ct_parse_protocol(ct, optarg); break;
107 case ARG_ORIG_SRC: nl_cli_ct_parse_src(ct, 0, optarg); break;
108 case ARG_ORIG_SPORT: nl_cli_ct_parse_src_port(ct, 0, optarg); break;
109 case ARG_ORIG_DST: nl_cli_ct_parse_dst(ct, 0, optarg); break;
110 case ARG_ORIG_DPORT: nl_cli_ct_parse_dst_port(ct, 0, optarg); break;
111 case ARG_REPLY_SRC: nl_cli_ct_parse_src(ct, 1, optarg); break;
112 case ARG_REPLY_SPORT: nl_cli_ct_parse_src_port(ct, 1, optarg); break;
113 case ARG_REPLY_DST: nl_cli_ct_parse_dst(ct, 1, optarg); break;
114 case ARG_REPLY_DPORT: nl_cli_ct_parse_dst_port(ct, 1, optarg); break;
115 case 'F': nl_cli_ct_parse_family(ct, optarg); break;
116 case ARG_MARK: nl_cli_ct_parse_mark(ct, optarg); break;
117 case ARG_TIMEOUT: nl_cli_ct_parse_timeout(ct, optarg); break;
118 case ARG_STATUS: nl_cli_ct_parse_status(ct, optarg); break;
119 case ARG_ZONE: nl_cli_ct_parse_zone(ct, optarg); break;
120 }
121 }
122
123 if (!quiet) {
124 printf("Adding ");
125 nl_object_dump(OBJ_CAST(ct), &params);
126 }
127
128 sock = nl_cli_alloc_socket();
129 nl_cli_connect(sock, NETLINK_NETFILTER);
130
131 if ((err = nfnl_ct_add(sock, ct, nlflags)) < 0)
132 nl_cli_fatal(err, "Unable to add conntrack: %s", nl_geterror(err));
133
134 if (!quiet) {
135 printf("Added ");
136 nl_object_dump(OBJ_CAST(ct), &params);
137 }
138
139 return 0;
140}
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
nfnl_ct
Definition nl-netfilter.h:40
nl_dump_params
Dumping parameters.
Definition types.h:32
nl_dump_params::dp_type
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition types.h:36