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Fixed the bug in transparent TCP proxying with the "encode_ip_hdr"

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option -- TcpAliasOut() did not catch the IP header length change.

Submitted by:	Stepachev Andrey <aka50@mail.ru>
This commit is contained in:
Ruslan Ermilov 2001-12-18 16:13:45 +00:00
parent 60c3e0f72a
commit 4aa5d00e3d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=88132
2 changed files with 6 additions and 2 deletions
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4
lib/libalias/alias.c
View File

@ -1058,12 +1058,14 @@ TcpAliasOut(struct ip *pip, int maxpacketsize)
u_short *sptr;
/* Save original destination address, if this is a proxy packet.
Also modify packet to include destination encoding. */
Also modify packet to include destination encoding. This may
change the size of IP header. */
if (proxy_type != 0)
{
SetProxyPort(link, dest_port);
SetProxyAddress(link, dest_address);
ProxyModify(link, pip, maxpacketsize, proxy_type);
tc = (struct tcphdr *) ((char *) pip + (pip->ip_hl << 2));
}
/* Get alias address and port */

4
sys/netinet/libalias/alias.c
View File

@ -1058,12 +1058,14 @@ TcpAliasOut(struct ip *pip, int maxpacketsize)
u_short *sptr;
/* Save original destination address, if this is a proxy packet.
Also modify packet to include destination encoding. */
Also modify packet to include destination encoding. This may
change the size of IP header. */
if (proxy_type != 0)
{
SetProxyPort(link, dest_port);
SetProxyAddress(link, dest_address);
ProxyModify(link, pip, maxpacketsize, proxy_type);
tc = (struct tcphdr *) ((char *) pip + (pip->ip_hl << 2));
}
/* Get alias address and port */