libnftnl  1.1.5
nft-expr_queue-test.c
1 /*
2  * (C) 2013 by Eric Leblond <eric@regit.org>
3  *
4  * Based on test framework by Ana Rey Botello <anarey@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  */
12 
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 
17 #include <netinet/in.h>
18 #include <netinet/ip.h>
19 #include <linux/netfilter/nf_tables.h>
20 #include <linux/netfilter/xt_iprange.h>
21 #include <libmnl/libmnl.h>
22 #include <libnftnl/rule.h>
23 #include <libnftnl/expr.h>
24 
25 static int test_ok = 1;
26 
27 static void print_err(const char *msg)
28 {
29  test_ok = 0;
30  printf("\033[31mERROR:\e[0m %s\n", msg);
31 }
32 
33 static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
34  struct nftnl_expr *rule_b)
35 {
36  if (nftnl_expr_get_u16(rule_a, NFTNL_EXPR_QUEUE_NUM) !=
37  nftnl_expr_get_u16(rule_b, NFTNL_EXPR_QUEUE_NUM))
38  print_err("Expr NFTNL_EXPR_QUEUE_NUM mismatches");
39  if (nftnl_expr_get_u16(rule_a, NFTNL_EXPR_QUEUE_TOTAL) !=
40  nftnl_expr_get_u16(rule_b, NFTNL_EXPR_QUEUE_TOTAL))
41  print_err("Expr NFTNL_EXPR_QUEUE_TOTAL mismatches");
42  if (nftnl_expr_get_u16(rule_a, NFTNL_EXPR_QUEUE_FLAGS) !=
43  nftnl_expr_get_u16(rule_b, NFTNL_EXPR_QUEUE_FLAGS))
44  print_err("Expr NFTNL_EXPR_QUEUE_FLAGS mismatches");
45 }
46 
47 int main(int argc, char *argv[])
48 {
49  struct nftnl_rule *a, *b;
50  struct nftnl_expr *ex;
51  struct nlmsghdr *nlh;
52  char buf[4096];
53  struct nftnl_expr_iter *iter_a, *iter_b;
54  struct nftnl_expr *rule_a, *rule_b;
55 
56  a = nftnl_rule_alloc();
57  b = nftnl_rule_alloc();
58  if (a == NULL || b == NULL)
59  print_err("OOM");
60  ex = nftnl_expr_alloc("queue");
61  if (ex == NULL)
62  print_err("OOM");
63 
64  nftnl_expr_set_u16(ex, NFTNL_EXPR_QUEUE_NUM, 0x01010);
65  nftnl_expr_set_u16(ex, NFTNL_EXPR_QUEUE_TOTAL, 0x1234);
66  nftnl_expr_set_u16(ex, NFTNL_EXPR_QUEUE_FLAGS, 0x4321);
67 
68  nftnl_rule_add_expr(a, ex);
69 
70  nlh = nftnl_rule_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
71  nftnl_rule_nlmsg_build_payload(nlh, a);
72 
73  if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
74  print_err("parsing problems");
75 
76  iter_a = nftnl_expr_iter_create(a);
77  iter_b = nftnl_expr_iter_create(b);
78  if (iter_a == NULL || iter_b == NULL)
79  print_err("OOM");
80 
81  rule_a = nftnl_expr_iter_next(iter_a);
82  rule_b = nftnl_expr_iter_next(iter_b);
83  if (rule_a == NULL || rule_b == NULL)
84  print_err("OOM");
85 
86  cmp_nftnl_expr(rule_a, rule_b);
87 
88  if (nftnl_expr_iter_next(iter_a) != NULL ||
89  nftnl_expr_iter_next(iter_b) != NULL)
90  print_err("More 1 expr.");
91 
92  nftnl_expr_iter_destroy(iter_a);
93  nftnl_expr_iter_destroy(iter_b);
94  nftnl_rule_free(a);
95  nftnl_rule_free(b);
96 
97  if (!test_ok)
98  exit(EXIT_FAILURE);
99 
100  printf("%s: \033[32mOK\e[0m\n", argv[0]);
101  return EXIT_SUCCESS;
102 }