libnl  3.6.0
nf-exp-delete.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/rtnetlink.h>
13 
14 static int quiet = 0;
15 
16 static 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\n"
48  );
49  exit(0);
50 }
51 
52 int main(int argc, char *argv[])
53 {
54  struct nl_sock *sock;
55  struct nfnl_exp *exp;
56  struct nl_dump_params params = {
58  .dp_fd = stdout,
59  };
60  int err, nlflags = 0;
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_TIMEOUT,
85  ARG_HELPER_NAME,
86  ARG_FLAGS,
87  };
88  static struct option long_opts[] = {
89  { "quiet", 0, 0, 'q' },
90  { "help", 0, 0, 'h' },
91  { "version", 0, 0, 'v' },
92  { "id", 1, 0, 'i' },
93  { "expect-proto", 1, 0, ARG_EXPECT_PROTO },
94  { "expect-src", 1, 0, ARG_EXPECT_SRC },
95  { "expect-sport", 1, 0, ARG_EXPECT_SPORT },
96  { "expect-dst", 1, 0, ARG_EXPECT_DST },
97  { "expect-dport", 1, 0, ARG_EXPECT_DPORT },
98  { "master-proto", 1, 0, ARG_MASTER_PROTO },
99  { "master-src", 1, 0, ARG_MASTER_SRC },
100  { "master-sport", 1, 0, ARG_MASTER_SPORT },
101  { "master-dst", 1, 0, ARG_MASTER_DST },
102  { "master-dport", 1, 0, ARG_MASTER_DPORT },
103  { "mask-proto", 1, 0, ARG_MASK_PROTO },
104  { "mask-src", 1, 0, ARG_MASK_SRC },
105  { "mask-sport", 1, 0, ARG_MASK_SPORT },
106  { "mask-dst", 1, 0, ARG_MASK_DST },
107  { "mask-dport", 1, 0, ARG_MASK_DPORT },
108  { "family", 1, 0, 'F' },
109  { "timeout", 1, 0, ARG_TIMEOUT },
110  { "helper", 1, 0, ARG_HELPER_NAME },
111  { "flags", 1, 0, ARG_FLAGS},
112  { 0, 0, 0, 0 }
113  };
114 
115  c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
116  if (c == -1)
117  break;
118 
119  switch (c) {
120  case '?': exit(NLE_INVAL);
121  case 'q': quiet = 1; break;
122  case '4': nfnl_exp_set_family(exp, AF_INET); break;
123  case '6': nfnl_exp_set_family(exp, AF_INET6); break;
124  case 'h': print_usage(); break;
125  case 'v': nl_cli_print_version(); break;
126  case 'i': nl_cli_exp_parse_id(exp, optarg); break;
127  case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
128  case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
129  case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
130  case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
131  case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
132  case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
133  case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
134  case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
135  case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
136  case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
137  case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
138  case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
139  case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
140  case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
141  case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
142  case 'F': nl_cli_exp_parse_family(exp, optarg); break;
143  case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
144  case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
145  case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
146  }
147  }
148 
149  sock = nl_cli_alloc_socket();
150  nl_cli_connect(sock, NETLINK_NETFILTER);
151 
152  if ((err = nfnl_exp_del(sock, exp, nlflags)) < 0)
153  nl_cli_fatal(err, "Unable to delete expectation: %s", nl_geterror(err));
154 
155  if (!quiet) {
156  printf("Deleted ");
157  nl_object_dump(OBJ_CAST(exp), &params);
158  }
159 
160  return 0;
161 }
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition: utils.c:71
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
Dump object briefly on one line.
Definition: types.h:16
Dumping parameters.
Definition: types.h:28
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:32