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9fafcd7b20
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>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef __NF_CONNTRACK_SIP_H__
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#define __NF_CONNTRACK_SIP_H__
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#ifdef __KERNEL__
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#define SIP_PORT 5060
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#define SIP_TIMEOUT 3600
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enum sip_header_pos {
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POS_REG_REQ_URI,
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POS_REQ_URI,
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POS_FROM,
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POS_TO,
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POS_VIA,
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POS_CONTACT,
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POS_CONTENT,
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POS_MEDIA,
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POS_OWNER_IP4,
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POS_CONNECTION_IP4,
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POS_OWNER_IP6,
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POS_CONNECTION_IP6,
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POS_SDP_HEADER,
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};
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extern unsigned int (*nf_nat_sip_hook)(struct sk_buff **pskb,
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enum ip_conntrack_info ctinfo,
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struct nf_conn *ct,
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const char **dptr);
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extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff **pskb,
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enum ip_conntrack_info ctinfo,
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struct nf_conntrack_expect *exp,
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const char *dptr);
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extern int ct_sip_get_info(struct nf_conn *ct, const char *dptr, size_t dlen,
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unsigned int *matchoff, unsigned int *matchlen,
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enum sip_header_pos pos);
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extern int ct_sip_lnlen(const char *line, const char *limit);
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extern const char *ct_sip_search(const char *needle, const char *haystack,
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size_t needle_len, size_t haystack_len,
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int case_sensitive);
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#endif /* __KERNEL__ */
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#endif /* __NF_CONNTRACK_SIP_H__ */
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