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

libnl 3.10.0

nf-ct-list.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/netlink.h>
11
12#include <netlink/cli/utils.h>
13#include <netlink/cli/ct.h>
14
15static void print_usage(void)
16{
17 printf(
18 "Usage: nf-ct-list [OPTION]... [CONNTRACK ENTRY]\n"
19 "\n"
20 "Options\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 "Conntrack Selection\n"
26 " -i, --id=NUM Identifier\n"
27 " -p, --proto=PROTOCOL Protocol\n"
28 " --tcp-state=STATE TCP connection state\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 " --refcnt=NUM Use counter value\n"
41 " --flags Flags\n"
42 );
43 exit(0);
44}
45
46int main(int argc, char *argv[])
47{
48 struct nl_sock *sock;
49 struct nl_cache *ct_cache;
50 struct nfnl_ct *ct;
51 struct nl_dump_params params = {
52 .dp_type = NL_DUMP_LINE,
53 .dp_fd = stdout,
54 };
55
56 ct = nl_cli_ct_alloc();
57
58 for (;;) {
59 int c, optidx = 0;
60 enum {
61 ARG_MARK = 257,
62 ARG_TCP_STATE = 258,
63 ARG_ORIG_SRC,
64 ARG_ORIG_SPORT,
65 ARG_ORIG_DST,
66 ARG_ORIG_DPORT,
67 ARG_REPLY_SRC,
68 ARG_REPLY_SPORT,
69 ARG_REPLY_DST,
70 ARG_REPLY_DPORT,
71 ARG_TIMEOUT,
72 ARG_REFCNT,
73 ARG_FLAGS,
74 };
75 static struct option long_opts[] = {
76 { "format", 1, 0, 'f' },
77 { "help", 0, 0, 'h' },
78 { "version", 0, 0, 'v' },
79 { "id", 1, 0, 'i' },
80 { "proto", 1, 0, 'p' },
81 { "tcp-state", 1, 0, ARG_TCP_STATE },
82 { "orig-src", 1, 0, ARG_ORIG_SRC },
83 { "orig-sport", 1, 0, ARG_ORIG_SPORT },
84 { "orig-dst", 1, 0, ARG_ORIG_DST },
85 { "orig-dport", 1, 0, ARG_ORIG_DPORT },
86 { "reply-src", 1, 0, ARG_REPLY_SRC },
87 { "reply-sport", 1, 0, ARG_REPLY_SPORT },
88 { "reply-dst", 1, 0, ARG_REPLY_DST },
89 { "reply-dport", 1, 0, ARG_REPLY_DPORT },
90 { "family", 1, 0, 'F' },
91 { "mark", 1, 0, ARG_MARK },
92 { "timeout", 1, 0, ARG_TIMEOUT },
93 { "refcnt", 1, 0, ARG_REFCNT },
94 { 0, 0, 0, 0 }
95 };
96
97 c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
98 if (c == -1)
99 break;
100
101 switch (c) {
102 case '?': exit(NLE_INVAL);
103 case '4': nfnl_ct_set_family(ct, AF_INET); break;
104 case '6': nfnl_ct_set_family(ct, AF_INET6); break;
105 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
106 case 'h': print_usage(); break;
107 case 'v': nl_cli_print_version(); break;
108 case 'i': nl_cli_ct_parse_id(ct, optarg); break;
109 case 'p': nl_cli_ct_parse_protocol(ct, optarg); break;
110 case ARG_TCP_STATE: nl_cli_ct_parse_tcp_state(ct, optarg); break;
111 case ARG_ORIG_SRC: nl_cli_ct_parse_src(ct, 0, optarg); break;
112 case ARG_ORIG_SPORT: nl_cli_ct_parse_src_port(ct, 0, optarg); break;
113 case ARG_ORIG_DST: nl_cli_ct_parse_dst(ct, 0, optarg); break;
114 case ARG_ORIG_DPORT: nl_cli_ct_parse_dst_port(ct, 0, optarg); break;
115 case ARG_REPLY_SRC: nl_cli_ct_parse_src(ct, 1, optarg); break;
116 case ARG_REPLY_SPORT: nl_cli_ct_parse_src_port(ct, 1, optarg); break;
117 case ARG_REPLY_DST: nl_cli_ct_parse_dst(ct, 1, optarg); break;
118 case ARG_REPLY_DPORT: nl_cli_ct_parse_dst_port(ct, 1, optarg); break;
119 case 'F': nl_cli_ct_parse_family(ct, optarg); break;
120 case ARG_MARK: nl_cli_ct_parse_mark(ct, optarg); break;
121 case ARG_TIMEOUT: nl_cli_ct_parse_timeout(ct, optarg); break;
122 case ARG_REFCNT: nl_cli_ct_parse_use(ct, optarg); break;
123 case ARG_FLAGS: nl_cli_ct_parse_status(ct, optarg); break;
124 }
125 }
126
127 sock = nl_cli_alloc_socket();
128 nl_cli_connect(sock, NETLINK_NETFILTER);
129 ct_cache = nl_cli_ct_alloc_cache(sock);
130
131 nl_cache_dump_filter(ct_cache, &params, OBJ_CAST(ct));
132
133 return 0;
134}
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:1217
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