[deliverable/linux.git] / include / linux / netfilter / nf_conntrack_h323.h

#ifndef _NF_CONNTRACK_H323_H
#define _NF_CONNTRACK_H323_H

#ifdef __KERNEL__

#include <linux/netfilter/nf_conntrack_h323_asn1.h>

#define RAS_PORT 1719
#define Q931_PORT 1720
#define H323_RTP_CHANNEL_MAX 4	/* Audio, video, FAX and other */

/* This structure exists only once per master */
struct nf_ct_h323_master {

	/* Original and NATed Q.931 or H.245 signal ports */
	__be16 sig_port[IP_CT_DIR_MAX];

	/* Original and NATed RTP ports */
	__be16 rtp_port[H323_RTP_CHANNEL_MAX][IP_CT_DIR_MAX];

	union {
		/* RAS connection timeout */
		u_int32_t timeout;

		/* Next TPKT length (for separate TPKT header and data) */
		u_int16_t tpkt_len[IP_CT_DIR_MAX];
	};
};

struct nf_conn;

int get_h225_addr(struct nf_conn *ct, unsigned char *data,
		  TransportAddress *taddr, union nf_inet_addr *addr,
		  __be16 *port);
void nf_conntrack_h245_expect(struct nf_conn *new,
			      struct nf_conntrack_expect *this);
void nf_conntrack_q931_expect(struct nf_conn *new,
			      struct nf_conntrack_expect *this);
extern int (*set_h245_addr_hook) (struct sk_buff *skb, unsigned int protoff,
				  unsigned char **data, int dataoff,
				  H245_TransportAddress *taddr,
				  union nf_inet_addr *addr,
				  __be16 port);
extern int (*set_h225_addr_hook) (struct sk_buff *skb, unsigned int protoff,
				  unsigned char **data, int dataoff,
				  TransportAddress *taddr,
				  union nf_inet_addr *addr,
				  __be16 port);
extern int (*set_sig_addr_hook) (struct sk_buff *skb,
				 struct nf_conn *ct,
				 enum ip_conntrack_info ctinfo,
				 unsigned int protoff, unsigned char **data,
				 TransportAddress *taddr, int count);
extern int (*set_ras_addr_hook) (struct sk_buff *skb,
				 struct nf_conn *ct,
				 enum ip_conntrack_info ctinfo,
				 unsigned int protoff, unsigned char **data,
				 TransportAddress *taddr, int count);
extern int (*nat_rtp_rtcp_hook) (struct sk_buff *skb,
				 struct nf_conn *ct,
				 enum ip_conntrack_info ctinfo,
				 unsigned int protoff, unsigned char **data,
				 int dataoff,
				 H245_TransportAddress *taddr,
				 __be16 port, __be16 rtp_port,
				 struct nf_conntrack_expect *rtp_exp,
				 struct nf_conntrack_expect *rtcp_exp);
extern int (*nat_t120_hook) (struct sk_buff *skb, struct nf_conn *ct,
			     enum ip_conntrack_info ctinfo,
			     unsigned int protoff,
			     unsigned char **data, int dataoff,
			     H245_TransportAddress *taddr, __be16 port,
			     struct nf_conntrack_expect *exp);
extern int (*nat_h245_hook) (struct sk_buff *skb, struct nf_conn *ct,
			     enum ip_conntrack_info ctinfo,
			     unsigned int protoff,
			     unsigned char **data, int dataoff,
			     TransportAddress *taddr, __be16 port,
			     struct nf_conntrack_expect *exp);
extern int (*nat_callforwarding_hook) (struct sk_buff *skb,
				       struct nf_conn *ct,
				       enum ip_conntrack_info ctinfo,
				       unsigned int protoff,
				       unsigned char **data, int dataoff,
				       TransportAddress *taddr,
				       __be16 port,
				       struct nf_conntrack_expect *exp);
extern int (*nat_q931_hook) (struct sk_buff *skb, struct nf_conn *ct,
			     enum ip_conntrack_info ctinfo,
			     unsigned int protoff,
			     unsigned char **data, TransportAddress *taddr,
			     int idx, __be16 port,
			     struct nf_conntrack_expect *exp);

#endif

#endif
Commit	Line	Data
f587de0e PM	1	#ifndef _NF_CONNTRACK_H323_H
	2	#define _NF_CONNTRACK_H323_H
	3
	4	#ifdef __KERNEL__
	5
	6	#include <linux/netfilter/nf_conntrack_h323_asn1.h>
	7
	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 */
	13	struct nf_ct_h323_master {
	14
	15	/* Original and NATed Q.931 or H.245 signal ports */
	16	__be16 sig_port[IP_CT_DIR_MAX];
	17
	18	/* Original and NATed RTP ports */
	19	__be16 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
	30	struct nf_conn;
	31
a0f4ecf3 JP	32	int get_h225_addr(struct nf_conn ct, unsigned char data,
	33	TransportAddress taddr, union nf_inet_addr addr,
	34	__be16 *port);
	35	void nf_conntrack_h245_expect(struct nf_conn *new,
	36	struct nf_conntrack_expect *this);
	37	void nf_conntrack_q931_expect(struct nf_conn *new,
	38	struct nf_conntrack_expect *this);
051966c0	39	extern int (set_h245_addr_hook) (struct sk_buff skb, unsigned int protoff,
f587de0e PM	40	unsigned char **data, int dataoff,
f587de0e PM	41	H245_TransportAddress *taddr,
643a2c15	42	union nf_inet_addr *addr,
f587de0e	43	__be16 port);
051966c0	44	extern int (set_h225_addr_hook) (struct sk_buff skb, unsigned int protoff,
f587de0e PM	45	unsigned char **data, int dataoff,
f587de0e PM	46	TransportAddress *taddr,
643a2c15	47	union nf_inet_addr *addr,
f587de0e	48	__be16 port);
3db05fea	49	extern int (set_sig_addr_hook) (struct sk_buff skb,
f587de0e PM	50	struct nf_conn *ct,
f587de0e PM	51	enum ip_conntrack_info ctinfo,
051966c0	52	unsigned int protoff, unsigned char **data,
f587de0e	53	TransportAddress *taddr, int count);
3db05fea	54	extern int (set_ras_addr_hook) (struct sk_buff skb,
f587de0e PM	55	struct nf_conn *ct,
f587de0e PM	56	enum ip_conntrack_info ctinfo,
051966c0	57	unsigned int protoff, unsigned char **data,
f587de0e	58	TransportAddress *taddr, int count);
3db05fea	59	extern int (nat_rtp_rtcp_hook) (struct sk_buff skb,
f587de0e PM	60	struct nf_conn *ct,
f587de0e PM	61	enum ip_conntrack_info ctinfo,
051966c0 PM	62	unsigned int protoff, unsigned char **data,
051966c0 PM	63	int dataoff,
f587de0e PM	64	H245_TransportAddress *taddr,
	65	__be16 port, __be16 rtp_port,
	66	struct nf_conntrack_expect *rtp_exp,
	67	struct nf_conntrack_expect *rtcp_exp);
3db05fea	68	extern int (nat_t120_hook) (struct sk_buff skb, struct nf_conn *ct,
f587de0e	69	enum ip_conntrack_info ctinfo,
051966c0	70	unsigned int protoff,
f587de0e PM	71	unsigned char **data, int dataoff,
	72	H245_TransportAddress *taddr, __be16 port,
	73	struct nf_conntrack_expect *exp);
3db05fea	74	extern int (nat_h245_hook) (struct sk_buff skb, struct nf_conn *ct,
f587de0e	75	enum ip_conntrack_info ctinfo,
051966c0	76	unsigned int protoff,
f587de0e PM	77	unsigned char **data, int dataoff,
	78	TransportAddress *taddr, __be16 port,
	79	struct nf_conntrack_expect *exp);
3db05fea	80	extern int (nat_callforwarding_hook) (struct sk_buff skb,
f587de0e PM	81	struct nf_conn *ct,
f587de0e PM	82	enum ip_conntrack_info ctinfo,
051966c0	83	unsigned int protoff,
f587de0e PM	84	unsigned char **data, int dataoff,
	85	TransportAddress *taddr,
	86	__be16 port,
	87	struct nf_conntrack_expect *exp);
3db05fea	88	extern int (nat_q931_hook) (struct sk_buff skb, struct nf_conn *ct,
f587de0e	89	enum ip_conntrack_info ctinfo,
051966c0	90	unsigned int protoff,
f587de0e PM	91	unsigned char *data, TransportAddress taddr,
	92	int idx, __be16 port,
	93	struct nf_conntrack_expect *exp);
	94
	95	#endif
	96
	97	#endif