1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * src/nf-exp-delete.c Delete an expectation
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation version 2.1
8 * of the License.
9 *
10 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
11 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
12 * Copyright (c) 2007 Secure Computing Corporation
13 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
14 */
15
16 #include <netlink/cli/utils.h>
17 #include <netlink/cli/exp.h>
18
19 #include <linux/rtnetlink.h>
20
21 static int quiet = 0;
22
print_usage(void)23 static void print_usage(void)
24 {
25 printf(
26 "Usage: nf-exp-list [OPTION]... [CONNTRACK ENTRY]\n"
27 "\n"
28 "Options\n"
29 " --replace Replace the address if it exists.\n"
30 " -q, --quiet Do not print informal notifications.\n"
31 " -h, --help Show this help\n"
32 " -v, --version Show versioning information\n"
33 "\n"
34 "Expectation Selection\n"
35 " -i, --id=NUM Identifier\n"
36 " --expect-proto=PROTOCOL Expectation protocol\n"
37 " --expect-src=ADDR Expectation source address\n"
38 " --expect-sport=PORT Expectation source port\n"
39 " --expect-dst=ADDR Expectation destination address\n"
40 " --expect-dport=PORT Expectation destination port\n"
41 " --master-proto=PROTOCOL Master conntrack protocol\n"
42 " --master-src=ADDR Master conntrack source address\n"
43 " --master-sport=PORT Master conntrack source port\n"
44 " --master-dst=ADDR Master conntrack destination address\n"
45 " --master-dport=PORT Master conntrack destination port\n"
46 " --mask-proto=PROTOCOL Mask protocol\n"
47 " --mask-src=ADDR Mask source address\n"
48 " --mask-sport=PORT Mask source port\n"
49 " --mask-dst=ADDR Mask destination address\n"
50 " --mask-dport=PORT Mask destination port\n"
51 " -F, --family=FAMILY Address family\n"
52 " --timeout=NUM Timeout value\n"
53 " --helper=STRING Helper Name\n"
54 " --flags Flags\n"
55 );
56 exit(0);
57 }
58
main(int argc,char * argv[])59 int main(int argc, char *argv[])
60 {
61 struct nl_sock *sock;
62 struct nfnl_exp *exp;
63 struct nl_dump_params params = {
64 .dp_type = NL_DUMP_LINE,
65 .dp_fd = stdout,
66 };
67 int err, nlflags = 0;
68
69 exp = nl_cli_exp_alloc();
70
71 for (;;) {
72 int c, optidx = 0;
73 enum {
74 ARG_MARK = 270,
75 ARG_TCP_STATE = 271,
76 ARG_EXPECT_PROTO,
77 ARG_EXPECT_SRC,
78 ARG_EXPECT_SPORT,
79 ARG_EXPECT_DST,
80 ARG_EXPECT_DPORT,
81 ARG_MASTER_PROTO,
82 ARG_MASTER_SRC,
83 ARG_MASTER_SPORT,
84 ARG_MASTER_DST,
85 ARG_MASTER_DPORT,
86 ARG_MASK_PROTO,
87 ARG_MASK_SRC,
88 ARG_MASK_SPORT,
89 ARG_MASK_DST,
90 ARG_MASK_DPORT,
91 ARG_TIMEOUT,
92 ARG_HELPER_NAME,
93 ARG_FLAGS,
94 };
95 static struct option long_opts[] = {
96 { "quiet", 0, 0, 'q' },
97 { "help", 0, 0, 'h' },
98 { "version", 0, 0, 'v' },
99 { "id", 1, 0, 'i' },
100 { "expect-proto", 1, 0, ARG_EXPECT_PROTO },
101 { "expect-src", 1, 0, ARG_EXPECT_SRC },
102 { "expect-sport", 1, 0, ARG_EXPECT_SPORT },
103 { "expect-dst", 1, 0, ARG_EXPECT_DST },
104 { "expect-dport", 1, 0, ARG_EXPECT_DPORT },
105 { "master-proto", 1, 0, ARG_MASTER_PROTO },
106 { "master-src", 1, 0, ARG_MASTER_SRC },
107 { "master-sport", 1, 0, ARG_MASTER_SPORT },
108 { "master-dst", 1, 0, ARG_MASTER_DST },
109 { "master-dport", 1, 0, ARG_MASTER_DPORT },
110 { "mask-proto", 1, 0, ARG_MASK_PROTO },
111 { "mask-src", 1, 0, ARG_MASK_SRC },
112 { "mask-sport", 1, 0, ARG_MASK_SPORT },
113 { "mask-dst", 1, 0, ARG_MASK_DST },
114 { "mask-dport", 1, 0, ARG_MASK_DPORT },
115 { "family", 1, 0, 'F' },
116 { "timeout", 1, 0, ARG_TIMEOUT },
117 { "helper", 1, 0, ARG_HELPER_NAME },
118 { "flags", 1, 0, ARG_FLAGS},
119 { 0, 0, 0, 0 }
120 };
121
122 c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
123 if (c == -1)
124 break;
125
126 switch (c) {
127 case '?': exit(NLE_INVAL);
128 case 'q': quiet = 1; break;
129 case '4': nfnl_exp_set_family(exp, AF_INET); break;
130 case '6': nfnl_exp_set_family(exp, AF_INET6); break;
131 case 'h': print_usage(); break;
132 case 'v': nl_cli_print_version(); break;
133 case 'i': nl_cli_exp_parse_id(exp, optarg); break;
134 case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
135 case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
136 case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
137 case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
138 case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
139 case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
140 case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
141 case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
142 case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
143 case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
144 case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
145 case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
146 case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
147 case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
148 case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
149 case 'F': nl_cli_exp_parse_family(exp, optarg); break;
150 case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
151 case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
152 case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
153 }
154 }
155
156 sock = nl_cli_alloc_socket();
157 nl_cli_connect(sock, NETLINK_NETFILTER);
158
159 if ((err = nfnl_exp_del(sock, exp, nlflags)) < 0)
160 nl_cli_fatal(err, "Unable to delete expectation: %s", nl_geterror(err));
161
162 if (!quiet) {
163 printf("Deleted ");
164 nl_object_dump(OBJ_CAST(exp), ¶ms);
165 }
166
167 return 0;
168 }
169