libnftnl 1.2.6
nft-expr_byteorder-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 <libmnl/libmnl.h>
19#include <libnftnl/rule.h>
20#include <libnftnl/expr.h>
21
22static int test_ok = 1;
23
24static void print_err(const char *msg)
25{
26 test_ok = 0;
27 printf("\033[31mERROR:\e[0m %s\n", msg);
28}
29
30static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
31 struct nftnl_expr *rule_b)
32{
33 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_BYTEORDER_DREG) !=
34 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_BYTEORDER_DREG))
35 print_err("Expr NFTNL_EXPR_BYTEORDER_DREG mismatches");
36 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_BYTEORDER_SREG) !=
37 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_BYTEORDER_SREG))
38 print_err("Expr NFTNL_EXPR_BYTEORDER_SREG mismatches");
39 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_BYTEORDER_OP) !=
40 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_BYTEORDER_OP))
41 print_err("Expr NFTNL_EXPR_BYTEORDER_OP mismatches");
42 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_BYTEORDER_LEN) !=
43 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_BYTEORDER_LEN))
44 print_err("Expr NFTNL_EXPR_BYTEORDER_DREG mismatches");
45 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_BYTEORDER_SIZE) !=
46 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_BYTEORDER_SIZE))
47 print_err("Expr NFTNL_EXPR_BITWISE_SIZE mismatches");
48}
49
50int main(int argc, char *argv[])
51{
52 struct nftnl_rule *a, *b;
53 struct nftnl_expr *ex;
54 struct nlmsghdr *nlh;
55 char buf[4096];
56 struct nftnl_expr_iter *iter_a, *iter_b;
57 struct nftnl_expr *rule_a, *rule_b;
58
59 a = nftnl_rule_alloc();
60 b = nftnl_rule_alloc();
61 if (a == NULL || b == NULL)
62 print_err("OOM");
63 ex = nftnl_expr_alloc("byteorder");
64 if (ex == NULL)
65 print_err("OOM");
66
67 nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_SREG, 0x12345678);
68 nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_DREG, 0x12345678);
69 nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_OP, 0x12345678);
70 nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_LEN, 0x12345678);
71 nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_SIZE, 0x12345678);
72
73 nftnl_rule_add_expr(a, ex);
74
75 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
76 nftnl_rule_nlmsg_build_payload(nlh, a);
77
78 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
79 print_err("parsing problems");
80
81 iter_a = nftnl_expr_iter_create(a);
82 iter_b = nftnl_expr_iter_create(b);
83 if (iter_a == NULL || iter_b == NULL)
84 print_err("OOM");
85
86 rule_a = nftnl_expr_iter_next(iter_a);
87 rule_b = nftnl_expr_iter_next(iter_b);
88 if (rule_a == NULL || rule_b == NULL)
89 print_err("OOM");
90
91 cmp_nftnl_expr(rule_a,rule_b);
92
93 if (nftnl_expr_iter_next(iter_a) != NULL ||
94 nftnl_expr_iter_next(iter_b) != NULL)
95 print_err("More 1 expr.");
96
97 nftnl_expr_iter_destroy(iter_a);
98 nftnl_expr_iter_destroy(iter_b);
99 nftnl_rule_free(a);
100 nftnl_rule_free(b);
101
102 if (!test_ok)
103 exit(EXIT_FAILURE);
104
105 printf("%s: \033[32mOK\e[0m\n", argv[0]);
106 return EXIT_SUCCESS;
107}