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 #define POS_VIA         0
   9 #define POS_CONTACT     1
  10 #define POS_CONTENT     2
  11 #define POS_MEDIA       3
  12 #define POS_OWNER       4
  13 #define POS_CONNECTION  5
  14 #define POS_REQ_HEADER  6
  15 #define POS_SDP_HEADER  7
  16
  17 struct sip_header_nfo {
  18         const char      *lname;
  19         const char      *sname;
  20         const char      *ln_str;
  21         size_t          lnlen;
  22         size_t          snlen;
  23         size_t          ln_strlen;
  24         int             (*match_len)(const char *, const char *, int *);
  25 };
  26
  27 extern unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
  28                                        enum ip_conntrack_info ctinfo,
  29                                        struct ip_conntrack *ct,
  30                                        const char **dptr);
  31 extern unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
  32                                        enum ip_conntrack_info ctinfo,
  33                                        struct ip_conntrack_expect *exp,
  34                                        const char *dptr);
  35
  36 extern int ct_sip_get_info(const char *dptr, size_t dlen,
  37                            unsigned int *matchoff,
  38                            unsigned int *matchlen,
  39                            struct sip_header_nfo *hnfo);
  40 extern int ct_sip_lnlen(const char *line, const char *limit);
  41 extern const char *ct_sip_search(const char *needle, const char *haystack,
  42                                  size_t needle_len, size_t haystack_len);
  43 #endif /* __KERNEL__ */
  44 #endif /* __IP_CONNTRACK_SIP_H__ */