1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* (C) 2013 by Ana Rey Botello <anarey@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <linux/netfilter/nf_tables.h>
#include <libmnl/libmnl.h>
#include <libnftnl/rule.h>
#include <libnftnl/expr.h>
static int test_ok = 1;
static void print_err(const char *msg)
{
test_ok = 0;
printf("\033[31mERROR:\e[0m %s\n", msg);
}
static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
struct nftnl_expr *rule_b)
{
if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_SREG) !=
nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_SREG))
print_err("Expr NFTNL_EXPR_LOOKUP_SREG mismatches");
if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_DREG) !=
nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_DREG))
print_err("Expr NFTNL_EXPR_LOOKUP_DREG mismatches");
if (strcmp(nftnl_expr_get_str(rule_a, NFTNL_EXPR_LOOKUP_SET),
nftnl_expr_get_str(rule_b, NFTNL_EXPR_LOOKUP_SET)))
print_err("Expr NFTNL_EXPR_LOOKUP_SET mismatches");
if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_SET_ID) !=
nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_SET_ID))
print_err("Expr NFTNL_EXPR_LOOKUP_SET_ID mismatches");
if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_FLAGS) !=
nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_FLAGS)) {
print_err("Expr NFTNL_EXPR_LOOKUP_FLAGS mismatches");
printf("%X %X\n",
nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_FLAGS),
nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_FLAGS));
}
}
int main(int argc, char *argv[])
{
struct nftnl_rule *a, *b;
struct nftnl_expr *ex;
struct nlmsghdr *nlh;
char buf[4096];
struct nftnl_expr_iter *iter_a, *iter_b;
struct nftnl_expr *rule_a, *rule_b;
const char *lookup_set = "test_set_01243";
a = nftnl_rule_alloc();
b = nftnl_rule_alloc();
if (a == NULL || b == NULL)
print_err("OOM");
ex = nftnl_expr_alloc("lookup");
if (ex == NULL)
print_err("OOM");
nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_SREG, 0x12345678);
nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_DREG, 0x78123456);
nftnl_expr_set_str(ex, NFTNL_EXPR_LOOKUP_SET, lookup_set);
nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_FLAGS, 0x12345678);
nftnl_rule_add_expr(a, ex);
nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
nftnl_rule_nlmsg_build_payload(nlh, a);
if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
print_err("parsing problems");
iter_a = nftnl_expr_iter_create(a);
iter_b = nftnl_expr_iter_create(b);
if (iter_a == NULL || iter_b == NULL)
print_err("OOM");
rule_a = nftnl_expr_iter_next(iter_a);
rule_b = nftnl_expr_iter_next(iter_b);
if (rule_a == NULL || rule_b == NULL)
print_err("OOM");
cmp_nftnl_expr(rule_a, rule_b);
if (nftnl_expr_iter_next(iter_a) != NULL ||
nftnl_expr_iter_next(iter_b) != NULL)
print_err("More 1 expr.");
nftnl_expr_iter_destroy(iter_a);
nftnl_expr_iter_destroy(iter_b);
nftnl_rule_free(a);
nftnl_rule_free(b);
if (!test_ok)
exit(EXIT_FAILURE);
printf("%s: \033[32mOK\e[0m\n", argv[0]);
return EXIT_SUCCESS;
}
|
