1#ifndef __NF_CONNTRACK_SIP_H__
2#define __NF_CONNTRACK_SIP_H__
3#ifdef __KERNEL__
4
5#define SIP_PORT	5060
6#define SIP_TIMEOUT	3600
7
8enum sip_header_pos {
9	POS_REG_REQ_URI,
10	POS_REQ_URI,
11	POS_FROM,
12	POS_TO,
13	POS_VIA,
14	POS_CONTACT,
15	POS_CONTENT,
16	POS_MEDIA,
17	POS_OWNER_IP4,
18	POS_CONNECTION_IP4,
19	POS_OWNER_IP6,
20	POS_CONNECTION_IP6,
21	POS_SDP_HEADER,
22};
23
24extern unsigned int (*nf_nat_sip_hook)(struct sk_buff **pskb,
25				       enum ip_conntrack_info ctinfo,
26				       struct nf_conn *ct,
27				       const char **dptr);
28extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff **pskb,
29				       enum ip_conntrack_info ctinfo,
30				       struct nf_conntrack_expect *exp,
31				       const char *dptr);
32
33extern int ct_sip_get_info(struct nf_conn *ct, const char *dptr, size_t dlen,
34			   unsigned int *matchoff, unsigned int *matchlen,
35			   enum sip_header_pos pos);
36extern int ct_sip_lnlen(const char *line, const char *limit);
37extern const char *ct_sip_search(const char *needle, const char *haystack,
38				 size_t needle_len, size_t haystack_len,
39				 int case_sensitive);
40#endif /* __KERNEL__ */
41#endif /* __NF_CONNTRACK_SIP_H__ */
42