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1 office 1 /*
2 * src/nf-ct-list.c List Conntrack Entries
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation version 2.1
7 * of the License.
8 *
9 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
10 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
11 * Copyright (c) 2007 Secure Computing Corporation
12 */
13  
14 #include <netlink/cli/utils.h>
15 #include <netlink/cli/ct.h>
16  
17 static void print_usage(void)
18 {
19 printf(
20 "Usage: nf-ct-list [OPTION]... [CONNTRACK ENTRY]\n"
21 "\n"
22 "Options\n"
23 " -f, --format=TYPE Output format { brief | details | stats }\n"
24 " -h, --help Show this help\n"
25 " -v, --version Show versioning information\n"
26 "\n"
27 "Conntrack Selection\n"
28 " -i, --id=NUM Identifier\n"
29 " -p, --proto=PROTOCOL Protocol\n"
30 " --tcp-state=STATE TCP connection state\n"
31 " --orig-src=ADDR Original source address\n"
32 " --orig-sport=PORT Original source port\n"
33 " --orig-dst=ADDR Original destination address\n"
34 " --orig-dport=PORT Original destination port\n"
35 " --reply-src=ADDR Reply source address\n"
36 " --reply-sport=PORT Reply source port\n"
37 " --reply-dst=ADDR Reply destination address\n"
38 " --reply-dport=PORT Reply destination port\n"
39 " -F, --family=FAMILY Address family\n"
40 " --mark=NUM Mark value\n"
41 " --timeout=NUM Timeout value\n"
42 " --refcnt=NUM Use counter value\n"
43 " --flags Flags\n"
44 );
45 exit(0);
46 }
47  
48 int main(int argc, char *argv[])
49 {
50 struct nl_sock *sock;
51 struct nl_cache *ct_cache;
52 struct nfnl_ct *ct;
53 struct nl_dump_params params = {
54 .dp_type = NL_DUMP_LINE,
55 .dp_fd = stdout,
56 };
57  
58 ct = nl_cli_ct_alloc();
59  
60 for (;;) {
61 int c, optidx = 0;
62 enum {
63 ARG_MARK = 257,
64 ARG_TCP_STATE = 258,
65 ARG_ORIG_SRC,
66 ARG_ORIG_SPORT,
67 ARG_ORIG_DST,
68 ARG_ORIG_DPORT,
69 ARG_REPLY_SRC,
70 ARG_REPLY_SPORT,
71 ARG_REPLY_DST,
72 ARG_REPLY_DPORT,
73 ARG_TIMEOUT,
74 ARG_REFCNT,
75 ARG_FLAGS,
76 };
77 static struct option long_opts[] = {
78 { "format", 1, 0, 'f' },
79 { "help", 0, 0, 'h' },
80 { "version", 0, 0, 'v' },
81 { "id", 1, 0, 'i' },
82 { "proto", 1, 0, 'p' },
83 { "tcp-state", 1, 0, ARG_TCP_STATE },
84 { "orig-src", 1, 0, ARG_ORIG_SRC },
85 { "orig-sport", 1, 0, ARG_ORIG_SPORT },
86 { "orig-dst", 1, 0, ARG_ORIG_DST },
87 { "orig-dport", 1, 0, ARG_ORIG_DPORT },
88 { "reply-src", 1, 0, ARG_REPLY_SRC },
89 { "reply-sport", 1, 0, ARG_REPLY_SPORT },
90 { "reply-dst", 1, 0, ARG_REPLY_DST },
91 { "reply-dport", 1, 0, ARG_REPLY_DPORT },
92 { "family", 1, 0, 'F' },
93 { "mark", 1, 0, ARG_MARK },
94 { "timeout", 1, 0, ARG_TIMEOUT },
95 { "refcnt", 1, 0, ARG_REFCNT },
96 { 0, 0, 0, 0 }
97 };
98  
99 c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
100 if (c == -1)
101 break;
102  
103 switch (c) {
104 case '?': exit(NLE_INVAL);
105 case '4': nfnl_ct_set_family(ct, AF_INET); break;
106 case '6': nfnl_ct_set_family(ct, AF_INET6); break;
107 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
108 case 'h': print_usage(); break;
109 case 'v': nl_cli_print_version(); break;
110 case 'i': nl_cli_ct_parse_id(ct, optarg); break;
111 case 'p': nl_cli_ct_parse_protocol(ct, optarg); break;
112 case ARG_TCP_STATE: nl_cli_ct_parse_tcp_state(ct, optarg); break;
113 case ARG_ORIG_SRC: nl_cli_ct_parse_src(ct, 0, optarg); break;
114 case ARG_ORIG_SPORT: nl_cli_ct_parse_src_port(ct, 0, optarg); break;
115 case ARG_ORIG_DST: nl_cli_ct_parse_dst(ct, 0, optarg); break;
116 case ARG_ORIG_DPORT: nl_cli_ct_parse_dst_port(ct, 0, optarg); break;
117 case ARG_REPLY_SRC: nl_cli_ct_parse_src(ct, 1, optarg); break;
118 case ARG_REPLY_SPORT: nl_cli_ct_parse_src_port(ct, 1, optarg); break;
119 case ARG_REPLY_DST: nl_cli_ct_parse_dst(ct, 1, optarg); break;
120 case ARG_REPLY_DPORT: nl_cli_ct_parse_dst_port(ct, 1, optarg); break;
121 case 'F': nl_cli_ct_parse_family(ct, optarg); break;
122 case ARG_MARK: nl_cli_ct_parse_mark(ct, optarg); break;
123 case ARG_TIMEOUT: nl_cli_ct_parse_timeout(ct, optarg); break;
124 case ARG_REFCNT: nl_cli_ct_parse_use(ct, optarg); break;
125 case ARG_FLAGS: nl_cli_ct_parse_status(ct, optarg); break;
126 }
127 }
128  
129 sock = nl_cli_alloc_socket();
130 nl_cli_connect(sock, NETLINK_NETFILTER);
131 ct_cache = nl_cli_ct_alloc_cache(sock);
132  
133 nl_cache_dump_filter(ct_cache, &params, OBJ_CAST(ct));
134  
135 return 0;
136 }