diff options
| author | Patrick McHardy <kaber@trash.net> | 2008-03-25 20:25:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-25 20:25:13 -0700 |
| commit | 0f32a40fc91a9ebbbf66e826ac2a829ab37d9cf8 (patch) | |
| tree | 0c221d19a91fa5ab4d746480438ea0f47031062d /include/linux/netfilter/nf_conntrack_sip.h | |
| parent | c978cd3a937141deaf7995b849824af6dacdeae7 (diff) | |
[NETFILTER]: nf_conntrack_sip: create signalling expectations
Create expectations for incoming signalling connections when seeing
a REGISTER request. This is needed when the registrar uses a
different source port number for signalling messages and for receiving
incoming calls from other endpoints than the registrar.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter/nf_conntrack_sip.h')
| -rw-r--r-- | include/linux/netfilter/nf_conntrack_sip.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h index 87e402825db..7cc84ed0c5d 100644 --- a/include/linux/netfilter/nf_conntrack_sip.h +++ b/include/linux/netfilter/nf_conntrack_sip.h @@ -5,6 +5,17 @@ #define SIP_PORT 5060 #define SIP_TIMEOUT 3600 +struct nf_ct_sip_master { + unsigned int register_cseq; +}; + +enum sip_expectation_classes { + SIP_EXPECT_SIGNALLING, + SIP_EXPECT_AUDIO, + __SIP_EXPECT_MAX +}; +#define SIP_EXPECT_MAX (__SIP_EXPECT_MAX - 1) + struct sip_handler { const char *method; unsigned int len; @@ -59,6 +70,7 @@ enum sip_header_types { SIP_HDR_TO, SIP_HDR_CONTACT, SIP_HDR_VIA, + SIP_HDR_EXPIRES, SIP_HDR_CONTENT_LENGTH, }; @@ -75,6 +87,12 @@ enum sdp_header_types { extern unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb, const char **dptr, unsigned int *datalen); +extern unsigned int (*nf_nat_sip_expect_hook)(struct sk_buff *skb, + 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, |