libnftnl 1.2.9
nft-rule-test.c
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * (C) 2013 by Ana Rey Botello <anarey@gmail.com>
4 */
5
6#include <stdio.h>
7#include <stdlib.h>
8#include <string.h>
9
10#include <netinet/in.h>
11#include <linux/netfilter/nf_tables.h>
12#include <libnftnl/rule.h>
13#include <libnftnl/udata.h>
14
15static int test_ok = 1;
16
17static void print_err(const char *msg)
18{
19 test_ok = 0;
20 printf("\033[31mERROR:\e[0m %s\n", msg);
21}
22
23static void cmp_nftnl_rule(struct nftnl_rule *a, struct nftnl_rule *b)
24{
25 const void *udata_a, *udata_b;
26 uint32_t len_a, len_b;
27
28 if (nftnl_rule_get_u32(a, NFTNL_RULE_FAMILY) !=
29 nftnl_rule_get_u32(b, NFTNL_RULE_FAMILY))
30 print_err("Rule family mismatches");
31 if (strcmp(nftnl_rule_get_str(a, NFTNL_RULE_TABLE),
32 nftnl_rule_get_str(b, NFTNL_RULE_TABLE)) != 0)
33 print_err("Rule table mismatches");
34 if (strcmp(nftnl_rule_get_str(a, NFTNL_RULE_CHAIN),
35 nftnl_rule_get_str(b, NFTNL_RULE_CHAIN)) != 0)
36 print_err("Rule table mismatches");
37 if (nftnl_rule_get_u64(a, NFTNL_RULE_HANDLE) !=
38 nftnl_rule_get_u64(b, NFTNL_RULE_HANDLE))
39 print_err("Rule handle mismatches");
40 if (nftnl_rule_get_u32(a, NFTNL_RULE_COMPAT_PROTO) !=
41 nftnl_rule_get_u32(b, NFTNL_RULE_COMPAT_PROTO))
42 print_err("Rule compat_proto mismatches");
43 if (nftnl_rule_get_u32(a, NFTNL_RULE_COMPAT_FLAGS) !=
44 nftnl_rule_get_u32(b, NFTNL_RULE_COMPAT_FLAGS))
45 print_err("Rule compat_flags mismatches");
46 if (nftnl_rule_get_u32(a, NFTNL_RULE_ID) !=
47 nftnl_rule_get_u32(b, NFTNL_RULE_ID))
48 print_err("Rule id mismatches");
49 if (nftnl_rule_get_u32(a, NFTNL_RULE_POSITION_ID) !=
50 nftnl_rule_get_u32(b, NFTNL_RULE_POSITION_ID))
51 print_err("Rule position_id mismatches");
52 if (nftnl_rule_get_u64(a, NFTNL_RULE_POSITION) !=
53 nftnl_rule_get_u64(b, NFTNL_RULE_POSITION))
54 print_err("Rule compat_position mismatches");
55
56 udata_a = nftnl_rule_get_data(a, NFTNL_RULE_USERDATA, &len_a);
57 udata_b = nftnl_rule_get_data(b, NFTNL_RULE_USERDATA, &len_b);
58
59 if (len_a != len_b || memcmp(udata_a, udata_b, len_a) != 0)
60 print_err("Rule userdata mismatches");
61}
62
63int main(int argc, char *argv[])
64{
65 struct nftnl_udata_buf *udata;
66 struct nftnl_rule *a, *b;
67 char buf[4096];
68 struct nlmsghdr *nlh;
69
70 a = nftnl_rule_alloc();
71 b = nftnl_rule_alloc();
72 if (a == NULL || b == NULL)
73 print_err("OOM");
74
75 udata = nftnl_udata_buf_alloc(NFT_USERDATA_MAXLEN);
76 if (!udata)
77 print_err("OOM");
78
79 if (!nftnl_udata_put_strz(udata, 0, "hello world"))
80 print_err("User data too big");
81
82 nftnl_rule_set_u32(a, NFTNL_RULE_FAMILY, AF_INET);
83 nftnl_rule_set_str(a, NFTNL_RULE_TABLE, "table");
84 nftnl_rule_set_str(a, NFTNL_RULE_CHAIN, "chain");
85 nftnl_rule_set_u64(a, NFTNL_RULE_HANDLE, 0x1234567812345678);
86 nftnl_rule_set_u32(a, NFTNL_RULE_COMPAT_PROTO, 0x12345678);
87 nftnl_rule_set_u32(a, NFTNL_RULE_COMPAT_FLAGS, 0x12345678);
88 nftnl_rule_set_u32(a, NFTNL_RULE_ID, 0x12345678);
89 nftnl_rule_set_u32(a, NFTNL_RULE_POSITION_ID, 0x12345678);
90 nftnl_rule_set_u64(a, NFTNL_RULE_POSITION, 0x1234567812345678);
91 nftnl_rule_set_data(a, NFTNL_RULE_USERDATA,
92 nftnl_udata_buf_data(udata),
93 nftnl_udata_buf_len(udata));
94 nftnl_udata_buf_free(udata);
95
96 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
97 nftnl_rule_nlmsg_build_payload(nlh, a);
98
99 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
100 print_err("parsing problems");
101
102 cmp_nftnl_rule(a,b);
103
104 nftnl_rule_free(a);
105 nftnl_rule_free(b);
106 if (!test_ok)
107 exit(EXIT_FAILURE);
108
109 printf("%s: \033[32mOK\e[0m\n", argv[0]);
110 return EXIT_SUCCESS;
111}