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
133
134
|
/* libnfqnetlink.h: Header file for the Netfilter Queue library.
*
* (C) 2005 by Harald Welte <laforge@gnumonks.org>
*
*
* Changelog :
* (2005/08/11) added parsing function (Eric Leblond <regit@inl.fr>)
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*/
#ifndef __LIBCTNETLINK_H
#define __LIBCTNETLINK_H
#include <libnfnetlink/libnfnetlink.h>
// #include <libnfnetlink/liunx_nfnetlink.h>
#include <libnetfilter_queue/linux_nfnetlink_queue.h>
#ifdef __cplusplus
extern "C" {
#endif
struct nfq_handle;
struct nfq_q_handle;
struct nfq_data;
extern int nfq_errno;
extern struct nfnl_handle *nfq_nfnlh(struct nfq_handle *h);
extern int nfq_fd(struct nfq_handle *h);
typedef int nfq_callback(struct nfq_q_handle *gh, struct nfgenmsg *nfmsg,
struct nfq_data *nfad, void *data);
extern struct nfq_handle *nfq_open(void);
extern struct nfq_handle *nfq_open_nfnl(struct nfnl_handle *nfnlh);
extern int nfq_close(struct nfq_handle *h);
extern int nfq_bind_pf(struct nfq_handle *h, u_int16_t pf);
extern int nfq_unbind_pf(struct nfq_handle *h, u_int16_t pf);
extern struct nfq_q_handle *nfq_create_queue(struct nfq_handle *h,
u_int16_t num,
nfq_callback *cb,
void *data);
extern int nfq_destroy_queue(struct nfq_q_handle *qh);
extern int nfq_handle_packet(struct nfq_handle *h, char *buf, int len);
extern int nfq_set_mode(struct nfq_q_handle *qh,
u_int8_t mode, unsigned int len);
int nfq_set_queue_maxlen(struct nfq_q_handle *qh,
u_int32_t queuelen);
extern int nfq_set_verdict(struct nfq_q_handle *qh,
u_int32_t id,
u_int32_t verdict,
u_int32_t data_len,
const unsigned char *buf);
extern int nfq_set_verdict2(struct nfq_q_handle *qh,
u_int32_t id,
u_int32_t verdict,
u_int32_t mark,
u_int32_t datalen,
const unsigned char *buf);
extern int nfq_set_verdict_batch(struct nfq_q_handle *qh,
u_int32_t id,
u_int32_t verdict);
extern int nfq_set_verdict_batch2(struct nfq_q_handle *qh,
u_int32_t id,
u_int32_t verdict,
u_int32_t mark);
extern __attribute__((deprecated))
int nfq_set_verdict_mark(struct nfq_q_handle *qh,
u_int32_t id,
u_int32_t verdict,
u_int32_t mark,
u_int32_t datalen,
const unsigned char *buf);
/* message parsing function */
extern struct nfqnl_msg_packet_hdr *
nfq_get_msg_packet_hdr(struct nfq_data *nfad);
extern u_int32_t nfq_get_nfmark(struct nfq_data *nfad);
extern int nfq_get_timestamp(struct nfq_data *nfad, struct timeval *tv);
/* return 0 if not set */
extern u_int32_t nfq_get_indev(struct nfq_data *nfad);
extern u_int32_t nfq_get_physindev(struct nfq_data *nfad);
extern u_int32_t nfq_get_outdev(struct nfq_data *nfad);
extern u_int32_t nfq_get_physoutdev(struct nfq_data *nfad);
extern int nfq_get_indev_name(struct nlif_handle *nlif_handle,
struct nfq_data *nfad, char *name);
extern int nfq_get_physindev_name(struct nlif_handle *nlif_handle,
struct nfq_data *nfad, char *name);
extern int nfq_get_outdev_name(struct nlif_handle *nlif_handle,
struct nfq_data *nfad, char *name);
extern int nfq_get_physoutdev_name(struct nlif_handle *nlif_handle,
struct nfq_data *nfad, char *name);
extern struct nfqnl_msg_packet_hw *nfq_get_packet_hw(struct nfq_data *nfad);
/* return -1 if problem, length otherwise */
extern int nfq_get_payload(struct nfq_data *nfad, unsigned char **data);
enum {
NFQ_XML_HW = (1 << 0),
NFQ_XML_MARK = (1 << 1),
NFQ_XML_DEV = (1 << 2),
NFQ_XML_PHYSDEV = (1 << 3),
NFQ_XML_PAYLOAD = (1 << 4),
NFQ_XML_TIME = (1 << 5),
NFQ_XML_ALL = ~0U,
};
extern int nfq_snprintf_xml(char *buf, size_t len, struct nfq_data *tb, int flags);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __LIBNFQNETLINK_H */
|
