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gerrit-public.fairphone.software / kernel / msm-4.9 / 3145012c1c34a3504a2234bd2034ca6ea4767bc5 / . / include / linux / netfilter_ipv4 / ip_conntrack_h323.h
blob: eace86bd2adbe0462abe44d5c1d6b7d5fc2523b0 [file] [log] [blame]
Jing Min Zhao5e35941d2006-03-20 23:41:17 -0800[diff] [blame]1#ifndef _IP_CONNTRACK_H323_H
2#define _IP_CONNTRACK_H323_H
3
4#ifdef __KERNEL__
5
Jing Min Zhao48bfee52006-04-06 14:13:42 -0700[diff] [blame]6#include <linux/netfilter_ipv4/ip_conntrack_helper_h323_asn1.h>
7
Jing Min Zhao5e35941d2006-03-20 23:41:17 -0800[diff] [blame]8#define RAS_PORT 1719
9#define Q931_PORT 1720
10#define H323_RTP_CHANNEL_MAX 4 /* Audio, video, FAX and other */
11
12/* This structure exists only once per master */
13struct ip_ct_h323_master {
14
15 /* Original and NATed Q.931 or H.245 signal ports */
16 u_int16_t sig_port[IP_CT_DIR_MAX];
17
18 /* Original and NATed RTP ports */
19 u_int16_t rtp_port[H323_RTP_CHANNEL_MAX][IP_CT_DIR_MAX];
20
21 union {
22 /* RAS connection timeout */
23 u_int32_t timeout;
24
25 /* Next TPKT length (for separate TPKT header and data) */
26 u_int16_t tpkt_len[IP_CT_DIR_MAX];
27 };
28};
29
Jing Min Zhao48bfee52006-04-06 14:13:42 -0700[diff] [blame]30struct ip_conntrack_expect;
31
32extern int get_h225_addr(unsigned char *data, TransportAddress * addr,
33 u_int32_t * ip, u_int16_t * port);
34extern void ip_conntrack_h245_expect(struct ip_conntrack *new,
35 struct ip_conntrack_expect *this);
36extern void ip_conntrack_q931_expect(struct ip_conntrack *new,
37 struct ip_conntrack_expect *this);
38extern int (*set_h245_addr_hook) (struct sk_buff ** pskb,
39 unsigned char **data, int dataoff,
40 H245_TransportAddress * addr,
41 u_int32_t ip, u_int16_t port);
42extern int (*set_h225_addr_hook) (struct sk_buff ** pskb,
43 unsigned char **data, int dataoff,
44 TransportAddress * addr,
45 u_int32_t ip, u_int16_t port);
46extern int (*set_sig_addr_hook) (struct sk_buff ** pskb,
47 struct ip_conntrack * ct,
48 enum ip_conntrack_info ctinfo,
49 unsigned char **data,
50 TransportAddress * addr, int count);
51extern int (*set_ras_addr_hook) (struct sk_buff ** pskb,
52 struct ip_conntrack * ct,
53 enum ip_conntrack_info ctinfo,
54 unsigned char **data,
55 TransportAddress * addr, int count);
56extern int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
57 struct ip_conntrack * ct,
58 enum ip_conntrack_info ctinfo,
59 unsigned char **data, int dataoff,
60 H245_TransportAddress * addr,
61 u_int16_t port, u_int16_t rtp_port,
62 struct ip_conntrack_expect * rtp_exp,
63 struct ip_conntrack_expect * rtcp_exp);
64extern int (*nat_t120_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
65 enum ip_conntrack_info ctinfo,
66 unsigned char **data, int dataoff,
67 H245_TransportAddress * addr, u_int16_t port,
68 struct ip_conntrack_expect * exp);
69extern int (*nat_h245_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
70 enum ip_conntrack_info ctinfo,
71 unsigned char **data, int dataoff,
72 TransportAddress * addr, u_int16_t port,
73 struct ip_conntrack_expect * exp);
74extern int (*nat_q931_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
75 enum ip_conntrack_info ctinfo,
76 unsigned char **data, TransportAddress * addr,
77 int idx, u_int16_t port,
78 struct ip_conntrack_expect * exp);
79
Jing Min Zhao5e35941d2006-03-20 23:41:17 -0800[diff] [blame]80#endif
81
82#endif