libnftnl 1.2.6
nft-expr_limit-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
15#include <netinet/in.h>
16#include <netinet/ip.h>
17#include <linux/netfilter/nf_tables.h>
18
19#include <libmnl/libmnl.h>
20#include <libnftnl/rule.h>
21#include <libnftnl/expr.h>
22
23static int test_ok = 1;
24
25static void print_err(const char *msg)
26{
27 test_ok = 0;
28 printf("\033[31mERROR:\e[0m %s\n", msg);
29}
30
31static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
32 struct nftnl_expr *rule_b)
33{
34 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_RATE) !=
35 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_RATE))
36 print_err("Expr CTR_BYTES mismatches");
37 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_UNIT) !=
38 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_UNIT))
39 print_err("Expr CTR_PACKET mismatches");
40 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_BURST) !=
41 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_BURST))
42 print_err("Expr CTR_PACKET mismatches");
43 if (nftnl_expr_get_u64(rule_a, NFTNL_EXPR_LIMIT_TYPE) !=
44 nftnl_expr_get_u64(rule_b, NFTNL_EXPR_LIMIT_TYPE))
45 print_err("Expr TYPE mismatches");
46 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LIMIT_FLAGS) !=
47 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LIMIT_FLAGS))
48 print_err("Expr FLAGS mismatches");
49}
50
51int main(int argc, char *argv[])
52{
53 struct nftnl_rule *a, *b;
54 struct nftnl_expr *ex;
55 struct nlmsghdr *nlh;
56 char buf[4096];
57 struct nftnl_expr_iter *iter_a, *iter_b;
58 struct nftnl_expr *rule_a, *rule_b;
59
60 a = nftnl_rule_alloc();
61 b = nftnl_rule_alloc();
62 if (a == NULL || b == NULL)
63 print_err("OOM");
64 ex = nftnl_expr_alloc("limit");
65 if (ex == NULL)
66 print_err("OOM");
67
68 nftnl_expr_set_u64(ex, NFTNL_EXPR_LIMIT_RATE, 0x123456789abcdef0);
69 nftnl_expr_set_u64(ex, NFTNL_EXPR_LIMIT_UNIT, 0xf0123456789abcde);
70 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_BURST, 0x89123456);
71 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_TYPE, 0xdef01234);
72 nftnl_expr_set_u32(ex, NFTNL_EXPR_LIMIT_FLAGS, 0x34def012);
73
74 nftnl_rule_add_expr(a, ex);
75
76 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
77 nftnl_rule_nlmsg_build_payload(nlh, a);
78
79 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
80 print_err("parsing problems");
81
82 iter_a = nftnl_expr_iter_create(a);
83 iter_b = nftnl_expr_iter_create(b);
84 if (iter_a == NULL || iter_b == NULL)
85 print_err("OOM");
86
87 rule_a = nftnl_expr_iter_next(iter_a);
88 rule_b = nftnl_expr_iter_next(iter_b);
89 if (rule_a == NULL || rule_b == NULL)
90 print_err("OOM");
91
92 cmp_nftnl_expr(rule_a, rule_b);
93
94 if (nftnl_expr_iter_next(iter_a) != NULL ||
95 nftnl_expr_iter_next(iter_b) != NULL)
96 print_err("More 1 expr.");
97
98 nftnl_expr_iter_destroy(iter_a);
99 nftnl_expr_iter_destroy(iter_b);
100 nftnl_rule_free(a);
101 nftnl_rule_free(b);
102
103 if (!test_ok)
104 exit(EXIT_FAILURE);
105
106 printf("%s: \033[32mOK\e[0m\n", argv[0]);
107 return EXIT_SUCCESS;
108}