include/linux/netfilter_ipv4/ip_conntrack_sip.h

   1 #ifndef __IP_CONNTRACK_SIP_H__
   2 #define __IP_CONNTRACK_SIP_H__
   3 #ifdef __KERNEL__
   4
   5 #define SIP_PORT        5060
   6 #define SIP_TIMEOUT     3600
   7
   8 enum sip_header_pos {
   9         POS_REQ_HEADER,
  10         POS_VIA,
  11         POS_CONTACT,
  12         POS_CONTENT,
  13         POS_MEDIA,
  14         POS_OWNER,
  15         POS_CONNECTION,
  16         POS_SDP_HEADER,
  17 };
  18
  19 extern unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
  20                                        enum ip_conntrack_info ctinfo,
  21                                        struct ip_conntrack *ct,
  22                                        const char **dptr);
  23 extern unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
  24                                        enum ip_conntrack_info ctinfo,
  25                                        struct ip_conntrack_expect *exp,
  26                                        const char *dptr);
  27
  28 extern int ct_sip_get_info(const char *dptr, size_t dlen,
  29                            unsigned int *matchoff,
  30                            unsigned int *matchlen,
  31                            enum sip_header_pos pos);
  32 extern int ct_sip_lnlen(const char *line, const char *limit);
  33 extern const char *ct_sip_search(const char *needle, const char *haystack,
  34                                  size_t needle_len, size_t haystack_len);
  35 #endif /* __KERNEL__ */
  36 #endif /* __IP_CONNTRACK_SIP_H__ */