summaryrefslogtreecommitdiffstats
path: root/utils/expect_create.c
blob: cf379e991f64447458b64f19ce38be2a97ca6c5b (plain)
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <arpa/inet.h>

#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>

/*
 * WARNING: This test file creates an expectation for the FTP helper.
 * Therefore, make sure you have load nf_conntrack_ftp before executing it. 
 */

int main(void)
{
	int ret;
	struct nfct_handle *h;
	struct nf_conntrack *master, *expected, *mask;
	struct nf_expect *exp;

	/*
	 * Step 1: Setup master conntrack
	 */

	master = nfct_new();
	if (!master) {
		perror("nfct_new");
		exit(EXIT_FAILURE);
	}

	nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET);
	nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
	nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("2.2.2.2"));

	nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP);
	nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(1025));
	nfct_set_attr_u16(master, ATTR_PORT_DST, htons(21));

	nfct_setobjopt(master, NFCT_SOPT_SETUP_REPLY);

	nfct_set_attr_u8(master, ATTR_TCP_STATE, TCP_CONNTRACK_ESTABLISHED);
	nfct_set_attr_u32(master, ATTR_TIMEOUT, 200);
	nfct_set_attr(master, ATTR_HELPER_NAME, "ftp");

	h = nfct_open(CONNTRACK, 0);
	if (!h) {
		perror("nfct_open");
		nfct_destroy(master);
		return -1;
	}

	ret = nfct_query(h, NFCT_Q_CREATE, master);

	printf("TEST: add master conntrack ");
	if (ret == -1)
		printf("(%d)(%s)\n", ret, strerror(errno));
	else
		printf("(OK)\n");

	nfct_close(h);

	expected = nfct_new();
	if (!expected) {
		perror("nfct_new");
		exit(EXIT_FAILURE);
	}

	nfct_set_attr_u8(expected, ATTR_L3PROTO, AF_INET);
	nfct_set_attr_u32(expected, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
	nfct_set_attr_u32(expected, ATTR_IPV4_DST, inet_addr("2.2.2.2"));

	nfct_set_attr_u8(expected, ATTR_L4PROTO, IPPROTO_TCP);
	nfct_set_attr_u16(expected, ATTR_PORT_SRC, 0);
	nfct_set_attr_u16(expected, ATTR_PORT_DST, htons(10241));

	mask = nfct_new();
	if (!mask) {
		perror("nfct_new");
		nfct_destroy(master);
		nfct_destroy(expected);
		exit(EXIT_FAILURE);
	}

	nfct_set_attr_u8(mask, ATTR_L3PROTO, AF_INET);
	nfct_set_attr_u32(mask, ATTR_IPV4_SRC, 0xffffffff);
	nfct_set_attr_u32(mask, ATTR_IPV4_DST, 0xffffffff);

	nfct_set_attr_u8(mask, ATTR_L4PROTO, IPPROTO_TCP);
	nfct_set_attr_u16(mask, ATTR_PORT_SRC, 0x0000);
	nfct_set_attr_u16(mask, ATTR_PORT_DST, 0xffff);

	/*
	 * Step 2: Setup expectation
	 */
	
	exp = nfexp_new();
	if (!exp) {
		perror("nfexp_new");
		nfct_destroy(master);
		nfct_destroy(expected);
		nfct_destroy(mask);
		exit(EXIT_FAILURE);
	}

	nfexp_set_attr(exp, ATTR_EXP_MASTER, master);
	nfexp_set_attr(exp, ATTR_EXP_EXPECTED, expected);
	nfexp_set_attr(exp, ATTR_EXP_MASK, mask);
	nfexp_set_attr_u32(exp, ATTR_EXP_TIMEOUT, 200);

	nfct_destroy(master);
	nfct_destroy(expected);
	nfct_destroy(mask);

	h = nfct_open(EXPECT, 0);
	if (!h) {
		perror("nfct_open");
		return -1;
	}

	ret = nfexp_query(h, NFCT_Q_CREATE, exp);

	printf("TEST: create expectation ");
	if (ret == -1)
		printf("(%d)(%s)\n", ret, strerror(errno));
	else
		printf("(OK)\n");

	nfct_close(h);

	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
}