libnftnl 1.2.6
nft-expr_nat-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#include <linux/netfilter/xt_iprange.h>
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_u32(rule_a, NFTNL_EXPR_NAT_TYPE) !=
35 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_TYPE))
36 print_err("Expr NFTNL_EXPR_NAT_TYPE mismatches");
37 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_FAMILY) !=
38 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_FAMILY))
39 print_err("Expr NFTNL_EXPR_NAT_FAMILY mismatches");
40 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_REG_ADDR_MIN) !=
41 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_REG_ADDR_MIN))
42 print_err("Expr NFTNL_EXPR_NAT_REG_ADDR_MIN mismatches");
43 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_REG_ADDR_MAX) !=
44 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_REG_ADDR_MAX))
45 print_err("Expr NFTNL_EXPR_NAT_REG_ADDR_MAX mismatches");
46 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_REG_PROTO_MIN) !=
47 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_REG_PROTO_MIN))
48 print_err("Expr NFTNL_EXPR_NAT_REG_PROTO_MIN mismatches");
49 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_REG_PROTO_MAX) !=
50 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_REG_PROTO_MAX))
51 print_err("Expr NFTNL_EXPR_NAT_REG_PROTO_MAX mismatches");
52 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_NAT_FLAGS) !=
53 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_NAT_FLAGS))
54 print_err("Expr NFTNL_EXPR_NAT_FLAGS mismatches");
55}
56
57int main(int argc, char *argv[])
58{
59 struct nftnl_rule *a, *b;
60 struct nftnl_expr *ex;
61 struct nlmsghdr *nlh;
62 char buf[4096];
63 struct nftnl_expr_iter *iter_a, *iter_b;
64 struct nftnl_expr *rule_a, *rule_b;
65
66 a = nftnl_rule_alloc();
67 b = nftnl_rule_alloc();
68 if (a == NULL || b == NULL)
69 print_err("OOM");
70 ex = nftnl_expr_alloc("nat");
71 if (ex == NULL)
72 print_err("OOM");
73
74 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_TYPE, 0x1234568);
75 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_FAMILY, 0x3456721);
76 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_REG_ADDR_MIN, 0x1452638);
77 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_REG_ADDR_MAX, 0x5134682);
78 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_REG_PROTO_MIN, 0x6124385);
79 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_REG_PROTO_MAX, 0x2153846);
80 nftnl_expr_set_u32(ex, NFTNL_EXPR_NAT_FLAGS, 0x4213683);
81
82 nftnl_rule_add_expr(a, ex);
83
84 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
85 nftnl_rule_nlmsg_build_payload(nlh, a);
86
87 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
88 print_err("parsing problems");
89
90 iter_a = nftnl_expr_iter_create(a);
91 iter_b = nftnl_expr_iter_create(b);
92 if (iter_a == NULL || iter_b == NULL)
93 print_err("OOM");
94
95 rule_a = nftnl_expr_iter_next(iter_a);
96 rule_b = nftnl_expr_iter_next(iter_b);
97 if (rule_a == NULL || rule_b == NULL)
98 print_err("OOM");
99
100 cmp_nftnl_expr(rule_a, rule_b);
101
102 if (nftnl_expr_iter_next(iter_a) != NULL ||
103 nftnl_expr_iter_next(iter_b) != NULL)
104 print_err("More 1 expr.");
105
106 nftnl_expr_iter_destroy(iter_a);
107 nftnl_expr_iter_destroy(iter_b);
108 nftnl_rule_free(a);
109 nftnl_rule_free(b);
110
111 if (!test_ok)
112 exit(EXIT_FAILURE);
113
114 printf("%s: \033[32mOK\e[0m\n", argv[0]);
115 return EXIT_SUCCESS;
116}