struct nf_ct_sip_master {
unsigned int register_cseq;
+ unsigned int invite_cseq;
};
enum sip_expectation_classes {
SIP_EXPECT_SIGNALLING,
SIP_EXPECT_AUDIO,
+ SIP_EXPECT_VIDEO,
__SIP_EXPECT_MAX
};
#define SIP_EXPECT_MAX (__SIP_EXPECT_MAX - 1)
+struct sdp_media_type {
+ const char *name;
+ unsigned int len;
+ enum sip_expectation_classes class;
+};
+
+#define SDP_MEDIA_TYPE(__name, __class) \
+{ \
+ .name = (__name), \
+ .len = sizeof(__name) - 1, \
+ .class = (__class), \
+}
+
struct sip_handler {
const char *method;
unsigned int len;
- int (*request)(struct sk_buff *skb,
+ int (*request)(struct sk_buff *skb, unsigned int dataoff,
const char **dptr, unsigned int *datalen,
unsigned int cseq);
- int (*response)(struct sk_buff *skb,
+ int (*response)(struct sk_buff *skb, unsigned int dataoff,
const char **dptr, unsigned int *datalen,
unsigned int cseq, unsigned int code);
};
};
extern unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
const char **dptr,
unsigned int *datalen);
extern unsigned int (*nf_nat_sip_expect_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
const char **dptr,
unsigned int *datalen,
struct nf_conntrack_expect *exp,
unsigned int matchoff,
unsigned int matchlen);
-extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
- const char **dptr,
- unsigned int *datalen,
- struct nf_conntrack_expect *exp);
+extern unsigned int (*nf_nat_sdp_addr_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
+ const char **dptr,
+ unsigned int *datalen,
+ unsigned int sdpoff,
+ enum sdp_header_types type,
+ enum sdp_header_types term,
+ const union nf_inet_addr *addr);
+extern unsigned int (*nf_nat_sdp_port_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
+ const char **dptr,
+ unsigned int *datalen,
+ unsigned int matchoff,
+ unsigned int matchlen,
+ u_int16_t port);
+extern unsigned int (*nf_nat_sdp_session_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
+ const char **dptr,
+ unsigned int *datalen,
+ unsigned int sdpoff,
+ const union nf_inet_addr *addr);
+extern unsigned int (*nf_nat_sdp_media_hook)(struct sk_buff *skb,
+ unsigned int dataoff,
+ const char **dptr,
+ unsigned int *datalen,
+ struct nf_conntrack_expect *rtp_exp,
+ struct nf_conntrack_expect *rtcp_exp,
+ unsigned int mediaoff,
+ unsigned int medialen,
+ union nf_inet_addr *rtp_addr);
extern int ct_sip_parse_request(const struct nf_conn *ct,
const char *dptr, unsigned int datalen,