libnftnl 1.2.9
nft-expr_match-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 <arpa/inet.h>
11#include <netinet/in.h>
12#include <netinet/ip.h>
13#include <linux/netfilter/nf_tables.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 print_err2(const char *msg, uint32_t a, uint32_t b)
27{
28 test_ok = 0;
29 printf("\033[31mERROR:\e[0m %s size a: %d b: %d \n", msg, a, b);
30}
31
32static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
33 struct nftnl_expr *rule_b)
34{
35 uint32_t lena, lenb;
36
37 if (strcmp(nftnl_expr_get_str(rule_a, NFTNL_EXPR_MT_NAME),
38 nftnl_expr_get_str(rule_b, NFTNL_EXPR_MT_NAME)) != 0)
39 print_err("Expr NFTNL_EXPR_MT_NAME mismatches");
40 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_MT_REV) !=
41 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_MT_REV))
42 print_err("Expr NFTNL_EXPR_MT_REV mismatches");
43 nftnl_expr_get(rule_a, NFTNL_EXPR_MT_INFO, &lena);
44 nftnl_expr_get(rule_b, NFTNL_EXPR_MT_INFO, &lenb);
45 if (lena != lenb)
46 print_err2("Expr NFTNL_EXPR_MT_INFO size mismatches", lena, lenb);
47}
48
49int main(int argc, char *argv[])
50{
51 struct nftnl_rule *a, *b;
52 struct nftnl_expr *ex;
53 struct nlmsghdr *nlh;
54 char buf[4096];
55 struct nftnl_expr_iter *iter_a, *iter_b;
56 struct nftnl_expr *rule_a, *rule_b;
57 char data[] = "0123456789abcdef";
58
59 a = nftnl_rule_alloc();
60 b = nftnl_rule_alloc();
61 if (a == NULL || b == NULL)
62 print_err("OOM");
63 ex = nftnl_expr_alloc("match");
64 if (ex == NULL)
65 print_err("OOM");
66
67 nftnl_expr_set_str(ex, NFTNL_EXPR_MT_NAME, "Tests");
68 nftnl_expr_set_u32(ex, NFTNL_EXPR_MT_REV, 0x12345678);
69 nftnl_expr_set(ex, NFTNL_EXPR_MT_INFO, strdup(data), sizeof(data));
70 nftnl_rule_add_expr(a, ex);
71
72 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
73 nftnl_rule_nlmsg_build_payload(nlh, a);
74
75 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
76 print_err("parsing problems");
77 iter_a = nftnl_expr_iter_create(a);
78 iter_b = nftnl_expr_iter_create(b);
79 if (iter_a == NULL || iter_b == NULL)
80 print_err("OOM");
81
82 rule_a = nftnl_expr_iter_next(iter_a);
83 rule_b = nftnl_expr_iter_next(iter_b);
84 if (rule_a == NULL || rule_b == NULL)
85 print_err("OOM");
86
87 cmp_nftnl_expr(rule_a, rule_b);
88
89 if (nftnl_expr_iter_next(iter_a) != NULL ||
90 nftnl_expr_iter_next(iter_b) != NULL)
91 print_err("More 1 expr.");
92
93 nftnl_expr_iter_destroy(iter_a);
94 nftnl_expr_iter_destroy(iter_b);
95 nftnl_rule_free(a);
96 nftnl_rule_free(b);
97
98 if (!test_ok)
99 exit(EXIT_FAILURE);
100
101 printf("%s: \033[32mOK\e[0m\n", argv[0]);
102 return EXIT_SUCCESS;
103}