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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 | ||
32 | extern int get_h225_addr(struct nf_conn *ct, unsigned char *data, | |
33 | TransportAddress *taddr, | |
643a2c15 | 34 | union nf_inet_addr *addr, __be16 *port); |
f587de0e PM |
35 | extern void nf_conntrack_h245_expect(struct nf_conn *new, |
36 | struct nf_conntrack_expect *this); | |
37 | extern void nf_conntrack_q931_expect(struct nf_conn *new, | |
38 | struct nf_conntrack_expect *this); | |
3db05fea | 39 | extern int (*set_h245_addr_hook) (struct sk_buff *skb, |
f587de0e PM |
40 | unsigned char **data, int dataoff, |
41 | H245_TransportAddress *taddr, | |
643a2c15 | 42 | union nf_inet_addr *addr, |
f587de0e | 43 | __be16 port); |
3db05fea | 44 | extern int (*set_h225_addr_hook) (struct sk_buff *skb, |
f587de0e PM |
45 | unsigned char **data, int dataoff, |
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, |
51 | enum ip_conntrack_info ctinfo, | |
52 | unsigned char **data, | |
53 | TransportAddress *taddr, int count); | |
3db05fea | 54 | extern int (*set_ras_addr_hook) (struct sk_buff *skb, |
f587de0e PM |
55 | struct nf_conn *ct, |
56 | enum ip_conntrack_info ctinfo, | |
57 | unsigned char **data, | |
58 | TransportAddress *taddr, int count); | |
3db05fea | 59 | extern int (*nat_rtp_rtcp_hook) (struct sk_buff *skb, |
f587de0e PM |
60 | struct nf_conn *ct, |
61 | enum ip_conntrack_info ctinfo, | |
62 | unsigned char **data, int dataoff, | |
63 | H245_TransportAddress *taddr, | |
64 | __be16 port, __be16 rtp_port, | |
65 | struct nf_conntrack_expect *rtp_exp, | |
66 | struct nf_conntrack_expect *rtcp_exp); | |
3db05fea | 67 | extern int (*nat_t120_hook) (struct sk_buff *skb, struct nf_conn *ct, |
f587de0e PM |
68 | enum ip_conntrack_info ctinfo, |
69 | unsigned char **data, int dataoff, | |
70 | H245_TransportAddress *taddr, __be16 port, | |
71 | struct nf_conntrack_expect *exp); | |
3db05fea | 72 | extern int (*nat_h245_hook) (struct sk_buff *skb, struct nf_conn *ct, |
f587de0e PM |
73 | enum ip_conntrack_info ctinfo, |
74 | unsigned char **data, int dataoff, | |
75 | TransportAddress *taddr, __be16 port, | |
76 | struct nf_conntrack_expect *exp); | |
3db05fea | 77 | extern int (*nat_callforwarding_hook) (struct sk_buff *skb, |
f587de0e PM |
78 | struct nf_conn *ct, |
79 | enum ip_conntrack_info ctinfo, | |
80 | unsigned char **data, int dataoff, | |
81 | TransportAddress *taddr, | |
82 | __be16 port, | |
83 | struct nf_conntrack_expect *exp); | |
3db05fea | 84 | extern int (*nat_q931_hook) (struct sk_buff *skb, struct nf_conn *ct, |
f587de0e PM |
85 | enum ip_conntrack_info ctinfo, |
86 | unsigned char **data, TransportAddress *taddr, | |
87 | int idx, __be16 port, | |
88 | struct nf_conntrack_expect *exp); | |
89 | ||
90 | #endif | |
91 | ||
92 | #endif |