libnftnl 1.2.9
nft-expr_reject-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 <netinet/ip.h>
12#include <linux/netfilter/nf_tables.h>
13#include <linux/netfilter/xt_iprange.h>
14#include <libmnl/libmnl.h>
15#include <libnftnl/rule.h>
16#include <libnftnl/expr.h>
17
18static int test_ok = 1;
19
20static void print_err(const char *msg)
21{
22 test_ok = 0;
23 printf("\033[31mERROR:\e[0m %s\n", msg);
24}
25
26static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
27 struct nftnl_expr *rule_b)
28{
29 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_REJECT_TYPE) !=
30 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_REJECT_TYPE))
31 print_err("Expr NFTNL_EXPR_REJECT_TYPE mismatches");
32 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_REJECT_CODE) !=
33 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_REJECT_CODE))
34 print_err("Expr NFTNL_EXPR_REJECT_CODE mismatches");
35}
36
37int main(int argc, char *argv[])
38{
39 struct nftnl_rule *a, *b;
40 struct nftnl_expr *ex;
41 struct nlmsghdr *nlh;
42 char buf[4096];
43 struct nftnl_expr_iter *iter_a, *iter_b;
44 struct nftnl_expr *rule_a, *rule_b;
45
46 a = nftnl_rule_alloc();
47 b = nftnl_rule_alloc();
48 if (a == NULL || b == NULL)
49 print_err("OOM");
50 ex = nftnl_expr_alloc("reject");
51 if (ex == NULL)
52 print_err("OOM");
53
54 nftnl_expr_set_u32(ex, NFTNL_EXPR_REJECT_TYPE, 0x12345678);
55 nftnl_expr_set_u32(ex, NFTNL_EXPR_REJECT_CODE, 0x45681234);
56
57 nftnl_rule_add_expr(a, ex);
58
59 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
60 nftnl_rule_nlmsg_build_payload(nlh, a);
61
62 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
63 print_err("parsing problems");
64
65 iter_a = nftnl_expr_iter_create(a);
66 iter_b = nftnl_expr_iter_create(b);
67 if (iter_a == NULL || iter_b == NULL)
68 print_err("OOM");
69
70 rule_a = nftnl_expr_iter_next(iter_a);
71 rule_b = nftnl_expr_iter_next(iter_b);
72 if (rule_a == NULL || rule_b == NULL)
73 print_err("OOM");
74
75 cmp_nftnl_expr(rule_a, rule_b);
76
77 if (nftnl_expr_iter_next(iter_a) != NULL ||
78 nftnl_expr_iter_next(iter_b) != NULL)
79 print_err("More 1 expr.");
80
81 nftnl_expr_iter_destroy(iter_a);
82 nftnl_expr_iter_destroy(iter_b);
83 nftnl_rule_free(a);
84 nftnl_rule_free(b);
85
86 if (!test_ok)
87 exit(EXIT_FAILURE);
88
89 printf("%s: \033[32mOK\e[0m\n", argv[0]);
90 return EXIT_SUCCESS;
91}