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authorPatrick McHardy <kaber@trash.net>2006-12-02 22:09:57 -0800
committerDavid S. Miller <davem@davemloft.net>2006-12-02 22:09:57 -0800
commit9fafcd7b203229c3f3893a475741afc27e276306 (patch)
treecc1c5051142c35dee2c584c97892624cb701bf20 /include/linux/netfilter
parentf09943fefe6b702e40893d35b4f10fd1064037fe (diff)
[NETFILTER]: nf_conntrack/nf_nat: add SIP helper port
Add IPv4 and IPv6 capable nf_conntrack port of the SIP conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter')
-rw-r--r--include/linux/netfilter/nf_conntrack_sip.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
new file mode 100644
index 000000000000..bb7f2041db74
--- /dev/null
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -0,0 +1,41 @@
+#ifndef __NF_CONNTRACK_SIP_H__
+#define __NF_CONNTRACK_SIP_H__
+#ifdef __KERNEL__
+
+#define SIP_PORT 5060
+#define SIP_TIMEOUT 3600
+
+enum sip_header_pos {
+ POS_REG_REQ_URI,
+ POS_REQ_URI,
+ POS_FROM,
+ POS_TO,
+ POS_VIA,
+ POS_CONTACT,
+ POS_CONTENT,
+ POS_MEDIA,
+ POS_OWNER_IP4,
+ POS_CONNECTION_IP4,
+ POS_OWNER_IP6,
+ POS_CONNECTION_IP6,
+ POS_SDP_HEADER,
+};
+
+extern unsigned int (*nf_nat_sip_hook)(struct sk_buff **pskb,
+ enum ip_conntrack_info ctinfo,
+ struct nf_conn *ct,
+ const char **dptr);
+extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff **pskb,
+ enum ip_conntrack_info ctinfo,
+ struct nf_conntrack_expect *exp,
+ const char *dptr);
+
+extern int ct_sip_get_info(struct nf_conn *ct, const char *dptr, size_t dlen,
+ unsigned int *matchoff, unsigned int *matchlen,
+ enum sip_header_pos pos);
+extern int ct_sip_lnlen(const char *line, const char *limit);
+extern const char *ct_sip_search(const char *needle, const char *haystack,
+ size_t needle_len, size_t haystack_len,
+ int case_sensitive);
+#endif /* __KERNEL__ */
+#endif /* __NF_CONNTRACK_SIP_H__ */