libnftnl 1.2.9
nft-expr_counter-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 <libmnl/libmnl.h>
14#include <libnftnl/rule.h>
15#include <libnftnl/expr.h>
16
17static int test_ok = 1;
18
19static void print_err(const char *msg)
20{
21 test_ok = 0;
22 printf("\033[31mERROR:\e[0m %s\n", msg);
23}
24
25static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
26 struct nftnl_expr *rule_b)
27{
28 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_CTR_BYTES) !=
29 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_CTR_BYTES))
30 print_err("Expr NFTNL_EXPR_CTR_BYTES mismatches");
31 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_CTR_PACKETS) !=
32 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_CTR_PACKETS))
33 print_err("Expr NFTNL_EXPR_CTR_PACKETS mismatches");
34}
35
36int main(int argc, char *argv[])
37{
38 struct nftnl_rule *a, *b;
39 struct nftnl_expr *ex;
40 struct nlmsghdr *nlh;
41 char buf[4096];
42 struct nftnl_expr_iter *iter_a, *iter_b;
43 struct nftnl_expr *rule_a, *rule_b;
44
45 a = nftnl_rule_alloc();
46 b = nftnl_rule_alloc();
47 if (a == NULL || b == NULL)
48 print_err("OOM");
49
50 ex = nftnl_expr_alloc("counter");
51 if (ex == NULL)
52 print_err("OOM");
53
54 nftnl_expr_set_u64(ex, NFTNL_EXPR_CTR_BYTES, 0x123456789abcdef0);
55 nftnl_expr_set_u64(ex, NFTNL_EXPR_CTR_PACKETS, 0xf0123456789abcde);
56 nftnl_rule_add_expr(a, ex);
57
58 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
59 nftnl_rule_nlmsg_build_payload(nlh, a);
60
61 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
62 print_err("parsing problems");
63
64 iter_a = nftnl_expr_iter_create(a);
65 iter_b = nftnl_expr_iter_create(b);
66 if (iter_a == NULL || iter_b == NULL)
67 print_err("OOM");
68 rule_a = nftnl_expr_iter_next(iter_a);
69 rule_b = nftnl_expr_iter_next(iter_b);
70 if (rule_a == NULL || rule_b == NULL)
71 print_err("OOM");
72
73 cmp_nftnl_expr(rule_a, rule_b);
74
75 if (nftnl_expr_iter_next(iter_a) != NULL ||
76 nftnl_expr_iter_next(iter_b) != NULL)
77 print_err("More 1 expr.");
78
79 nftnl_expr_iter_destroy(iter_a);
80 nftnl_expr_iter_destroy(iter_b);
81 nftnl_rule_free(a);
82 nftnl_rule_free(b);
83
84 if (!test_ok)
85 exit(EXIT_FAILURE);
86 printf("%s: \033[32mOK\e[0m\n", argv[0]);
87 return EXIT_SUCCESS;
88}