libnftnl 1.2.6
nft-expr_ct-test.c
1/*
2 * (C) 2013 by Ana Rey Botello <anarey@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 */
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <netinet/in.h>
15#include <netinet/ip.h>
16
17#include <linux/netfilter/nf_tables.h>
18#include <libmnl/libmnl.h>
19#include <libnftnl/rule.h>
20#include <libnftnl/expr.h>
21
22static int test_ok = 1;
23static void print_err(const char *msg)
24{
25 test_ok = 0;
26 printf("\033[31mERROR:\e[0m %s\n", msg);
27}
28
29static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
30 struct nftnl_expr *rule_b)
31{
32 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CT_KEY) !=
33 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CT_KEY))
34 print_err("Expr CT_KEY mismatches");
35 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CT_DIR) !=
36 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CT_DIR))
37 print_err("Expr CT_DIR mismatches");
38 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CT_DREG) !=
39 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CT_DREG))
40 print_err("Expr CT_DREG mismatches");
41}
42int main(int argc, char *argv[])
43{
44 struct nftnl_rule *a, *b;
45 struct nftnl_expr *ex;
46 struct nlmsghdr *nlh;
47 char buf[4096];
48 struct nftnl_expr_iter *iter_a, *iter_b;
49 struct nftnl_expr *rule_a, *rule_b;
50
51 a = nftnl_rule_alloc();
52 b = nftnl_rule_alloc();
53 if (a == NULL || b == NULL)
54 print_err("OOM");
55 ex = nftnl_expr_alloc("ct");
56 if (ex == NULL)
57 print_err("OOM");
58
59 nftnl_expr_set_u32(ex, NFTNL_EXPR_CT_KEY, 0x1234568);
60 nftnl_expr_set_u32(ex, NFTNL_EXPR_CT_DIR, 0x12);
61 nftnl_expr_set_u32(ex, NFTNL_EXPR_CT_DREG, 0x78123456);
62
63 nftnl_rule_add_expr(a, ex);
64
65 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
66 nftnl_rule_nlmsg_build_payload(nlh, a);
67
68 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
69 print_err("parsing problems");
70
71 iter_a = nftnl_expr_iter_create(a);
72 iter_b = nftnl_expr_iter_create(b);
73 if (iter_a == NULL || iter_b == NULL)
74 print_err("OOM");
75
76 rule_a = nftnl_expr_iter_next(iter_a);
77 rule_b = nftnl_expr_iter_next(iter_b);
78 if (rule_a == NULL || rule_b == NULL)
79 print_err("OOM");
80
81 cmp_nftnl_expr(rule_a, rule_b);
82
83 if (nftnl_expr_iter_next(iter_a) != NULL ||
84 nftnl_expr_iter_next(iter_b) != NULL)
85 print_err("More 1 expr.");
86
87 nftnl_expr_iter_destroy(iter_a);
88 nftnl_expr_iter_destroy(iter_b);
89 nftnl_rule_free(a);
90 nftnl_rule_free(b);
91
92 if (!test_ok)
93 exit(EXIT_FAILURE);
94
95 printf("%s: \033[32mOK\e[0m\n", argv[0]);
96 return EXIT_SUCCESS;
97}