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      1 /*
      2  * src/nf-exp-list.c     List Expectation 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 (at) suug.ch>
     10  * Copyright (c) 2007 Philip Craig <philipc (at) snapgear.com>
     11  * Copyright (c) 2007 Secure Computing Corporation
     12  * Copyright (c) 2012 Rich Fought <rich.fought (at) watchguard.com>
     13  */
     14 
     15 #include <netlink/cli/utils.h>
     16 #include <netlink/cli/exp.h>
     17 
     18 static void print_usage(void)
     19 {
     20 	printf(
     21 	"Usage: nf-exp-list [OPTION]... [EXPECTATION ENTRY]\n"
     22 	"\n"
     23 	"Options\n"
     24 	" -f, --format=TYPE     Output format { brief | details }\n"
     25 	" -h, --help            Show this help\n"
     26 	" -v, --version         Show versioning information\n"
     27 	"\n"
     28 	"Expectation Selection\n"
     29 	" -i, --id=NUM                Identifier\n"
     30 	"     --expect-proto=PROTOCOL Expectation protocol\n"
     31 	"     --expect-src=ADDR       Expectation source address\n"
     32 	"     --expect-sport=PORT     Expectation source port\n"
     33 	"     --expect-dst=ADDR       Expectation destination address\n"
     34 	"     --expect-dport=PORT     Expectation destination port\n"
     35 	"     --master-proto=PROTOCOL Master conntrack protocol\n"
     36 	"     --master-src=ADDR       Master conntrack source address\n"
     37 	"     --master-sport=PORT     Master conntrack source port\n"
     38 	"     --master-dst=ADDR       Master conntrack destination address\n"
     39 	"     --master-dport=PORT     Master conntrack destination port\n"
     40 	" -F, --family=FAMILY         Address family\n"
     41 	"     --timeout=NUM           Timeout value\n"
     42 	"     --helper=STRING         Helper Name\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 *exp_cache;
     52 	struct nfnl_exp *exp;
     53 	struct nl_dump_params params = {
     54 		.dp_type = NL_DUMP_LINE,
     55 		.dp_fd = stdout,
     56 	};
     57 
     58  	exp = nl_cli_exp_alloc();
     59 
     60 	for (;;) {
     61 		int c, optidx = 0;
     62 		enum {
     63 			ARG_MARK = 270,
     64 			ARG_TCP_STATE = 271,
     65 			ARG_EXPECT_PROTO,
     66 			ARG_EXPECT_SRC,
     67 			ARG_EXPECT_SPORT,
     68 			ARG_EXPECT_DST,
     69 			ARG_EXPECT_DPORT,
     70 			ARG_MASTER_PROTO,
     71 			ARG_MASTER_SRC,
     72 			ARG_MASTER_SPORT,
     73 			ARG_MASTER_DST,
     74 			ARG_MASTER_DPORT,
     75 			ARG_TIMEOUT,
     76  			ARG_HELPER_NAME,
     77 			ARG_FLAGS,
     78 		};
     79 		static struct option long_opts[] = {
     80 			{ "format", 1, 0, 'f' },
     81 			{ "help", 0, 0, 'h' },
     82 			{ "version", 0, 0, 'v' },
     83 			{ "id", 1, 0, 'i' },
     84 			{ "expect-proto", 1, 0, ARG_EXPECT_PROTO },
     85 			{ "expect-src", 1, 0, ARG_EXPECT_SRC },
     86 			{ "expect-sport", 1, 0, ARG_EXPECT_SPORT },
     87 			{ "expect-dst", 1, 0, ARG_EXPECT_DST },
     88 			{ "expect-dport", 1, 0, ARG_EXPECT_DPORT },
     89 			{ "master-proto", 1, 0, ARG_MASTER_PROTO },
     90 			{ "master-src", 1, 0, ARG_MASTER_SRC },
     91 			{ "master-sport", 1, 0, ARG_MASTER_SPORT },
     92 			{ "master-dst", 1, 0, ARG_MASTER_DST },
     93 			{ "master-dport", 1, 0, ARG_MASTER_DPORT },
     94 			{ "family", 1, 0, 'F' },
     95 			{ "timeout", 1, 0, ARG_TIMEOUT },
     96 			{ "helper", 1, 0, ARG_HELPER_NAME },
     97 			{ "flags", 1, 0, ARG_FLAGS},
     98 			{ 0, 0, 0, 0 }
     99 		};
    100 
    101 		c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
    102 		if (c == -1)
    103 			break;
    104 
    105 		switch (c) {
    106 		case '?': exit(NLE_INVAL);
    107 		case '4': nfnl_exp_set_family(exp, AF_INET); break;
    108 		case '6': nfnl_exp_set_family(exp, AF_INET6); break;
    109 		case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
    110 		case 'h': print_usage(); break;
    111 		case 'v': nl_cli_print_version(); break;
    112 		case 'i': nl_cli_exp_parse_id(exp, optarg); break;
    113 		case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
    114 		case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
    115 		case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
    116 		case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
    117 		case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
    118 		case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
    119 		case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
    120 		case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
    121 		case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
    122 		case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
    123 		case 'F': nl_cli_exp_parse_family(exp, optarg); break;
    124 		case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
    125 		case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
    126 		case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
    127 		}
    128  	}
    129 
    130 	sock = nl_cli_alloc_socket();
    131 	nl_cli_connect(sock, NETLINK_NETFILTER);
    132 	exp_cache = nl_cli_exp_alloc_cache(sock);
    133 
    134 	nl_cache_dump_filter(exp_cache, &params, OBJ_CAST(exp));
    135 
    136 	return 0;
    137 }
    138