libnftnl 1.2.9
nft-expr_limit-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
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_u64(rule_a, NFTNL_EXPR_LIMIT_RATE) !=
30 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_RATE))
31 print_err("Expr CTR_BYTES mismatches");
32 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_UNIT) !=
33 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_UNIT))
34 print_err("Expr CTR_PACKET mismatches");
35 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_BURST) !=
36 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_BURST))
37 print_err("Expr CTR_PACKET mismatches");
38 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_TYPE) !=
39 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_TYPE))
40 print_err("Expr TYPE mismatches");
41 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LIMIT_FLAGS) !=
42 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LIMIT_FLAGS))
43 print_err("Expr FLAGS mismatches");
44}
45
46int main(int argc, char *argv[])
47{
48 struct nftnl_rule *a, *b;
49 struct nftnl_expr *ex;
50 struct nlmsghdr *nlh;
51 char buf[4096];
52 struct nftnl_expr_iter *iter_a, *iter_b;
53 struct nftnl_expr *rule_a, *rule_b;
54
55 a = nftnl_rule_alloc();
56 b = nftnl_rule_alloc();
57 if (a == NULL || b == NULL)
58 print_err("OOM");
59 ex = nftnl_expr_alloc("limit");
60 if (ex == NULL)
61 print_err("OOM");
62
63 nftnl_expr_set_u64(ex, NFTNL_EXPR_LIMIT_RATE, 0x123456789abcdef0);
64 nftnl_expr_set_u64(ex, NFTNL_EXPR_LIMIT_UNIT, 0xf0123456789abcde);
65 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_BURST, 0x89123456);
66 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_TYPE, 0xdef01234);
67 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_FLAGS, 0x34def012);
68
69 nftnl_rule_add_expr(a, ex);
70
71 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
72 nftnl_rule_nlmsg_build_payload(nlh, a);
73
74 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
75 print_err("parsing problems");
76
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}