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[NETFILTER]: sip conntrack: minor cleanup

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- Use enum for header field enumeration
- Use numerical value instead of pointer to header info structure to
  identify headers, unexport ct_sip_hdrs
- group SIP and SDP entries in header info structure
- remove double forward declaration of ct_sip_get_info

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy 2006-11-29 02:35:26 +01:00 • committed by David S. Miller
commit 9d5b8baa4e
3 changed files with 55 additions and 63 deletions
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28
include/linux/netfilter_ipv4/ip_conntrack_sip.h
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@ -5,23 +5,15 @@
#define SIP_PORT 5060
#define SIP_TIMEOUT 3600
#define POS_VIA 0
#define POS_CONTACT 1
#define POS_CONTENT 2
#define POS_MEDIA 3
#define POS_OWNER 4
#define POS_CONNECTION 5
#define POS_REQ_HEADER 6
#define POS_SDP_HEADER 7
struct sip_header_nfo {
const char *lname;
const char *sname;
const char *ln_str;
size_t lnlen;
size_t snlen;
size_t ln_strlen;
int (*match_len)(const char *, const char *, int *);
enum sip_header_pos {
POS_REQ_HEADER,
POS_VIA,
POS_CONTACT,
POS_CONTENT,
POS_MEDIA,
POS_OWNER,
POS_CONNECTION,
POS_SDP_HEADER,
};
extern unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
@ -36,7 +28,7 @@ extern unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
extern int ct_sip_get_info(const char *dptr, size_t dlen,
unsigned int *matchoff,
unsigned int *matchlen,
struct sip_header_nfo *hnfo);
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);