libnftnl  1.2.9
nft-expr_objref-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 
17 static int test_ok = 1;
18 
19 static void print_err(const char *msg)
20 {
21  test_ok = 0;
22  printf("\033[31mERROR:\e[0m %s\n", msg);
23 }
24 
25 static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
26  struct nftnl_expr *rule_b)
27 {
28  if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_OBJREF_IMM_TYPE) !=
29  nftnl_expr_get_u32(rule_b, NFTNL_EXPR_OBJREF_IMM_TYPE))
30  print_err("Expr NFTNL_EXPR_OBJREF_IMM_TYPE mismatches");
31  if (strcmp(nftnl_expr_get_str(rule_a, NFTNL_EXPR_OBJREF_IMM_NAME),
32  nftnl_expr_get_str(rule_b, NFTNL_EXPR_OBJREF_IMM_NAME)))
33  print_err("Expr NFTNL_EXPR_OBJREF_IMM_NAME mismatches");
34 }
35 
36 int 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  const char *name = "test_set_01243";
45 
46  a = nftnl_rule_alloc();
47  b = nftnl_rule_alloc();
48  if (a == NULL || b == NULL)
49  print_err("OOM");
50  ex = nftnl_expr_alloc("objref");
51  if (ex == NULL)
52  print_err("OOM");
53 
54  nftnl_expr_set_u32(ex, NFTNL_EXPR_OBJREF_IMM_TYPE, 0x78123456);
55  nftnl_expr_set_str(ex, NFTNL_EXPR_OBJREF_IMM_NAME, name);
56 
57  nftnl_rule_add_expr(a, ex);
58 
59  nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
60  nftnl_rule_nlmsg_build_payload(nlh, a);
61 
62  if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
63  print_err("parsing problems");
64 
65  iter_a = nftnl_expr_iter_create(a);
66  iter_b = nftnl_expr_iter_create(b);
67  if (iter_a == NULL || iter_b == NULL)
68  print_err("OOM");
69  rule_a = nftnl_expr_iter_next(iter_a);
70  rule_b = nftnl_expr_iter_next(iter_b);
71  if (rule_a == NULL || rule_b == NULL)
72  print_err("OOM");
73 
74  cmp_nftnl_expr(rule_a, rule_b);
75 
76  if (nftnl_expr_iter_next(iter_a) != NULL ||
77  nftnl_expr_iter_next(iter_b) != NULL)
78  print_err("More 1 expr.");
79 
80  nftnl_expr_iter_destroy(iter_a);
81  nftnl_expr_iter_destroy(iter_b);
82  nftnl_rule_free(a);
83  nftnl_rule_free(b);
84 
85  if (!test_ok)
86  exit(EXIT_FAILURE);
87 
88  printf("%s: \033[32mOK\e[0m\n", argv[0]);
89 
90  return EXIT_SUCCESS;
91 }