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yaml
---
r: 90349
b: refs/heads/master
c: ea45f12
h: refs/heads/master
i:
  90347: 107f20f
v: v3
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Patrick McHardy authored and David S. Miller committed Mar 26, 2008
1 parent baa3907 commit 7eb246f
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Showing 4 changed files with 152 additions and 169 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ac3677406d4e36e86b1eb5a453997a3b3e0c089a
refs/heads/master: ea45f12a2766dae54e5426a23e8f4bafdbe2782e
30 changes: 15 additions & 15 deletions trunk/include/linux/netfilter/nf_conntrack_sip.h
Original file line number Diff line number Diff line change
Expand Up @@ -5,14 +5,6 @@
#define SIP_PORT 5060
#define SIP_TIMEOUT 3600

enum sip_header_pos {
POS_FROM,
POS_TO,
POS_VIA,
POS_CONTACT,
POS_CONTENT,
};

struct sip_header {
const char *name;
const char *cname;
Expand All @@ -36,9 +28,20 @@ struct sip_header {
.match_len = (__match), \
}

#define SIP_HDR(__name, __cname, __search, __match) \
__SIP_HDR(__name, __cname, __search, __match)

#define SDP_HDR(__name, __search, __match) \
__SIP_HDR(__name, NULL, __search, __match)

enum sip_header_types {
SIP_HDR_FROM,
SIP_HDR_TO,
SIP_HDR_CONTACT,
SIP_HDR_VIA,
SIP_HDR_CONTENT_LENGTH,
};

enum sdp_header_types {
SDP_HDR_UNSPEC,
SDP_HDR_VERSION,
Expand All @@ -60,13 +63,10 @@ extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
extern int ct_sip_parse_request(const struct nf_conn *ct,
const char *dptr, unsigned int datalen,
unsigned int *matchoff, unsigned int *matchlen);
extern int ct_sip_get_info(const 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);
extern int ct_sip_get_header(const struct nf_conn *ct, const char *dptr,
unsigned int dataoff, unsigned int datalen,
enum sip_header_types type,
unsigned int *matchoff, unsigned int *matchlen);

extern int ct_sip_get_sdp_header(const struct nf_conn *ct, const char *dptr,
unsigned int dataoff, unsigned int datalen,
Expand Down
18 changes: 9 additions & 9 deletions trunk/net/ipv4/netfilter/nf_nat_sip.c
Original file line number Diff line number Diff line change
Expand Up @@ -108,14 +108,14 @@ static int map_addr(struct sk_buff *skb,

static int map_sip_addr(struct sk_buff *skb,
const char **dptr, unsigned int *datalen,
enum sip_header_pos pos, struct addr_map *map)
enum sip_header_types type, struct addr_map *map)
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
unsigned int matchlen, matchoff;

if (ct_sip_get_info(ct, *dptr, *datalen, &matchoff, &matchlen,
pos) <= 0)
if (ct_sip_get_header(ct, *dptr, 0, *datalen, type,
&matchoff, &matchlen) <= 0)
return 1;
return map_addr(skb, dptr, datalen, matchoff, matchlen, map);
}
Expand All @@ -141,10 +141,10 @@ static unsigned int ip_nat_sip(struct sk_buff *skb,
return NF_DROP;
}

if (!map_sip_addr(skb, dptr, datalen, POS_FROM, &map) ||
!map_sip_addr(skb, dptr, datalen, POS_TO, &map) ||
!map_sip_addr(skb, dptr, datalen, POS_VIA, &map) ||
!map_sip_addr(skb, dptr, datalen, POS_CONTACT, &map))
if (!map_sip_addr(skb, dptr, datalen, SIP_HDR_FROM, &map) ||
!map_sip_addr(skb, dptr, datalen, SIP_HDR_TO, &map) ||
!map_sip_addr(skb, dptr, datalen, SIP_HDR_VIA, &map) ||
!map_sip_addr(skb, dptr, datalen, SIP_HDR_CONTACT, &map))
return NF_DROP;
return NF_ACCEPT;
}
Expand All @@ -166,8 +166,8 @@ static int mangle_content_len(struct sk_buff *skb,
c_len = *datalen - matchoff + strlen("v=");

/* Now, update SDP length */
if (ct_sip_get_info(ct, *dptr, *datalen, &matchoff, &matchlen,
POS_CONTENT) <= 0)
if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_CONTENT_LENGTH,
&matchoff, &matchlen) <= 0)
return 0;

buflen = sprintf(buffer, "%u", c_len);
Expand Down
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