libnl 3.7.0
nf-exp-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 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
7 */
8
9#include <netlink/cli/utils.h>
10#include <netlink/cli/exp.h>
11
12#include <linux/netlink.h>
13
14static int quiet = 0;
15
16static void print_usage(void)
17{
18 printf(
19 "Usage: nf-exp-list [OPTION]... [CONNTRACK ENTRY]\n"
20 "\n"
21 "Options\n"
22 " --replace Replace the address if it exists.\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 "Expectation Selection\n"
28 " -i, --id=NUM Identifier\n"
29 " --expect-proto=PROTOCOL Expectation protocol\n"
30 " --expect-src=ADDR Expectation source address\n"
31 " --expect-sport=PORT Expectation source port\n"
32 " --expect-dst=ADDR Expectation destination address\n"
33 " --expect-dport=PORT Expectation destination port\n"
34 " --master-proto=PROTOCOL Master conntrack protocol\n"
35 " --master-src=ADDR Master conntrack source address\n"
36 " --master-sport=PORT Master conntrack source port\n"
37 " --master-dst=ADDR Master conntrack destination address\n"
38 " --master-dport=PORT Master conntrack destination port\n"
39 " --mask-proto=PROTOCOL Mask protocol\n"
40 " --mask-src=ADDR Mask source address\n"
41 " --mask-sport=PORT Mask source port\n"
42 " --mask-dst=ADDR Mask destination address\n"
43 " --mask-dport=PORT Mask destination port\n"
44 " -F, --family=FAMILY Address family\n"
45 " --timeout=NUM Timeout value\n"
46 " --helper=STRING Helper Name\n"
47 " --flags Flags (Kernel 2.6.37)\n"
48 );
49 exit(0);
50}
51
52int main(int argc, char *argv[])
53{
54 struct nl_sock *sock;
55 struct nfnl_exp *exp;
56 struct nl_dump_params params = {
57 .dp_type = NL_DUMP_LINE,
58 .dp_fd = stdout,
59 };
60 int err, nlflags = NLM_F_CREATE;
61
62 exp = nl_cli_exp_alloc();
63
64 for (;;) {
65 int c, optidx = 0;
66 enum {
67 ARG_MARK = 270,
68 ARG_TCP_STATE = 271,
69 ARG_EXPECT_PROTO,
70 ARG_EXPECT_SRC,
71 ARG_EXPECT_SPORT,
72 ARG_EXPECT_DST,
73 ARG_EXPECT_DPORT,
74 ARG_MASTER_PROTO,
75 ARG_MASTER_SRC,
76 ARG_MASTER_SPORT,
77 ARG_MASTER_DST,
78 ARG_MASTER_DPORT,
79 ARG_MASK_PROTO,
80 ARG_MASK_SRC,
81 ARG_MASK_SPORT,
82 ARG_MASK_DST,
83 ARG_MASK_DPORT,
84 ARG_NAT_PROTO,
85 ARG_NAT_SRC,
86 ARG_NAT_SPORT,
87 ARG_NAT_DST,
88 ARG_NAT_DPORT,
89 ARG_NAT_DIR,
90 ARG_TIMEOUT,
91 ARG_HELPER_NAME,
92 ARG_REPLACE,
93 ARG_FLAGS,
94 };
95 static struct option long_opts[] = {
96 { "replace", 1, 0, ARG_REPLACE },
97 { "quiet", 0, 0, 'q' },
98 { "help", 0, 0, 'h' },
99 { "version", 0, 0, 'v' },
100 { "id", 1, 0, 'i' },
101 { "expect-proto", 1, 0, ARG_EXPECT_PROTO },
102 { "expect-src", 1, 0, ARG_EXPECT_SRC },
103 { "expect-sport", 1, 0, ARG_EXPECT_SPORT },
104 { "expect-dst", 1, 0, ARG_EXPECT_DST },
105 { "expect-dport", 1, 0, ARG_EXPECT_DPORT },
106 { "master-proto", 1, 0, ARG_MASTER_PROTO },
107 { "master-src", 1, 0, ARG_MASTER_SRC },
108 { "master-sport", 1, 0, ARG_MASTER_SPORT },
109 { "master-dst", 1, 0, ARG_MASTER_DST },
110 { "master-dport", 1, 0, ARG_MASTER_DPORT },
111 { "mask-proto", 1, 0, ARG_MASK_PROTO },
112 { "mask-src", 1, 0, ARG_MASK_SRC },
113 { "mask-sport", 1, 0, ARG_MASK_SPORT },
114 { "mask-dst", 1, 0, ARG_MASK_DST },
115 { "mask-dport", 1, 0, ARG_MASK_DPORT },
116 { "nat-proto", 1, 0, ARG_NAT_PROTO },
117 { "nat-src", 1, 0, ARG_NAT_SRC },
118 { "nat-sport", 1, 0, ARG_NAT_SPORT },
119 { "nat-dst", 1, 0, ARG_NAT_DST },
120 { "nat-dport", 1, 0, ARG_NAT_DPORT },
121 { "nat-dir", 1, 0, ARG_NAT_DIR },
122 { "family", 1, 0, 'F' },
123 { "timeout", 1, 0, ARG_TIMEOUT },
124 { "helper", 1, 0, ARG_HELPER_NAME },
125 { "flags", 1, 0, ARG_FLAGS},
126 { 0, 0, 0, 0 }
127 };
128
129 c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
130 if (c == -1)
131 break;
132
133 switch (c) {
134 case '?': exit(NLE_INVAL);
135 case ARG_REPLACE: nlflags |= NLM_F_REPLACE; break;
136 case 'q': quiet = 1; break;
137 case '4': nfnl_exp_set_family(exp, AF_INET); break;
138 case '6': nfnl_exp_set_family(exp, AF_INET6); break;
139 case 'h': print_usage(); break;
140 case 'v': nl_cli_print_version(); break;
141 case 'i': nl_cli_exp_parse_id(exp, optarg); break;
142 case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
143 case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
144 case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
145 case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
146 case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
147 case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
148 case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
149 case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
150 case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
151 case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
152 case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
153 case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
154 case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
155 case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
156 case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
157 case ARG_NAT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_NAT, optarg); break;
158 case ARG_NAT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_NAT, optarg); break;
159 case ARG_NAT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_NAT, optarg); break;
160 case ARG_NAT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_NAT, optarg); break;
161 case ARG_NAT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_NAT, optarg); break;
162 case ARG_NAT_DIR: nl_cli_exp_parse_nat_dir(exp, optarg); break;
163 case 'F': nl_cli_exp_parse_family(exp, optarg); break;
164 case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
165 case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
166 case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
167 }
168 }
169
170 sock = nl_cli_alloc_socket();
171 nl_cli_connect(sock, NETLINK_NETFILTER);
172
173 if ((err = nfnl_exp_add(sock, exp, nlflags)) < 0)
174 nl_cli_fatal(err, "Unable to add expectation: %s", nl_geterror(err));
175
176 if (!quiet) {
177 printf("Added ");
178 nl_object_dump(OBJ_CAST(exp), &params);
179 }
180
181 return 0;
182}
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