| #ifndef _IP_CONNTRACK_H323_H |
| #define _IP_CONNTRACK_H323_H |
| |
| #ifdef __KERNEL__ |
| |
| #include <linux/netfilter_ipv4/ip_conntrack_helper_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 ip_ct_h323_master { |
| |
| /* Original and NATed Q.931 or H.245 signal ports */ |
| u_int16_t sig_port[IP_CT_DIR_MAX]; |
| |
| /* Original and NATed RTP ports */ |
| u_int16_t 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 ip_conntrack_expect; |
| |
| extern int get_h225_addr(unsigned char *data, TransportAddress * addr, |
| __be32 * ip, u_int16_t * port); |
| extern void ip_conntrack_h245_expect(struct ip_conntrack *new, |
| struct ip_conntrack_expect *this); |
| extern void ip_conntrack_q931_expect(struct ip_conntrack *new, |
| struct ip_conntrack_expect *this); |
| extern int (*set_h245_addr_hook) (struct sk_buff ** pskb, |
| unsigned char **data, int dataoff, |
| H245_TransportAddress * addr, |
| __be32 ip, u_int16_t port); |
| extern int (*set_h225_addr_hook) (struct sk_buff ** pskb, |
| unsigned char **data, int dataoff, |
| TransportAddress * addr, |
| __be32 ip, u_int16_t port); |
| extern int (*set_sig_addr_hook) (struct sk_buff ** pskb, |
| struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, |
| TransportAddress * addr, int count); |
| extern int (*set_ras_addr_hook) (struct sk_buff ** pskb, |
| struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, |
| TransportAddress * addr, int count); |
| extern int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb, |
| struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, int dataoff, |
| H245_TransportAddress * addr, |
| u_int16_t port, u_int16_t rtp_port, |
| struct ip_conntrack_expect * rtp_exp, |
| struct ip_conntrack_expect * rtcp_exp); |
| extern int (*nat_t120_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, int dataoff, |
| H245_TransportAddress * addr, u_int16_t port, |
| struct ip_conntrack_expect * exp); |
| extern int (*nat_h245_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, int dataoff, |
| TransportAddress * addr, u_int16_t port, |
| struct ip_conntrack_expect * exp); |
| extern int (*nat_callforwarding_hook) (struct sk_buff ** pskb, |
| struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, int dataoff, |
| TransportAddress * addr, |
| u_int16_t port, |
| struct ip_conntrack_expect * exp); |
| extern int (*nat_q931_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct, |
| enum ip_conntrack_info ctinfo, |
| unsigned char **data, TransportAddress * addr, |
| int idx, u_int16_t port, |
| struct ip_conntrack_expect * exp); |
| |
| #endif |
| |
| #endif |