1 #ifndef __NF_CONNTRACK_SIP_H__
2 #define __NF_CONNTRACK_SIP_H__
6 #define SIP_TIMEOUT 3600
11 int (*request)(struct sk_buff *skb,
12 const char **dptr, unsigned int *datalen,
14 int (*response)(struct sk_buff *skb,
15 const char **dptr, unsigned int *datalen,
16 unsigned int cseq, unsigned int code);
19 #define SIP_HANDLER(__method, __request, __response) \
21 .method = (__method), \
22 .len = sizeof(__method) - 1, \
23 .request = (__request), \
24 .response = (__response), \
34 int (*match_len)(const struct nf_conn *ct,
35 const char *dptr, const char *limit,
39 #define __SIP_HDR(__name, __cname, __search, __match) \
42 .len = sizeof(__name) - 1, \
44 .clen = (__cname) ? sizeof(__cname) - 1 : 0, \
45 .search = (__search), \
46 .slen = (__search) ? sizeof(__search) - 1 : 0, \
47 .match_len = (__match), \
50 #define SIP_HDR(__name, __cname, __search, __match) \
51 __SIP_HDR(__name, __cname, __search, __match)
53 #define SDP_HDR(__name, __search, __match) \
54 __SIP_HDR(__name, NULL, __search, __match)
56 enum sip_header_types {
62 SIP_HDR_CONTENT_LENGTH,
65 enum sdp_header_types {
69 SDP_HDR_CONNECTION_IP4,
71 SDP_HDR_CONNECTION_IP6,
75 extern unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb,
77 unsigned int *datalen);
78 extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
80 unsigned int *datalen,
81 struct nf_conntrack_expect *exp);
83 extern int ct_sip_parse_request(const struct nf_conn *ct,
84 const char *dptr, unsigned int datalen,
85 unsigned int *matchoff, unsigned int *matchlen,
86 union nf_inet_addr *addr, __be16 *port);
87 extern int ct_sip_get_header(const struct nf_conn *ct, const char *dptr,
88 unsigned int dataoff, unsigned int datalen,
89 enum sip_header_types type,
90 unsigned int *matchoff, unsigned int *matchlen);
91 extern int ct_sip_parse_header_uri(const struct nf_conn *ct, const char *dptr,
92 unsigned int *dataoff, unsigned int datalen,
93 enum sip_header_types type, int *in_header,
94 unsigned int *matchoff, unsigned int *matchlen,
95 union nf_inet_addr *addr, __be16 *port);
96 extern int ct_sip_parse_address_param(const struct nf_conn *ct, const char *dptr,
97 unsigned int dataoff, unsigned int datalen,
99 unsigned int *matchoff, unsigned int *matchlen,
100 union nf_inet_addr *addr);
101 extern int ct_sip_parse_numerical_param(const struct nf_conn *ct, const char *dptr,
102 unsigned int off, unsigned int datalen,
104 unsigned int *matchoff, unsigned int *matchen,
107 extern int ct_sip_get_sdp_header(const struct nf_conn *ct, const char *dptr,
108 unsigned int dataoff, unsigned int datalen,
109 enum sdp_header_types type,
110 enum sdp_header_types term,
111 unsigned int *matchoff, unsigned int *matchlen);
113 #endif /* __KERNEL__ */
114 #endif /* __NF_CONNTRACK_SIP_H__ */