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 
18 static int test_ok = 1;
19 
20 static void print_err(const char *msg)
21 {
22  test_ok = 0;
23  printf("\033[31mERROR:\e[0m %s\n", msg);
24 }
25 
26 static 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 
46 int 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 }