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- Optimization to the previous (rev 1.15) commit.

Browse Source 
Requested by:	eivind
Discussed with:	eivind
Reviewed by:	brian, eivind
This commit is contained in:
Ruslan Ermilov 1999-09-10 15:27:34 +00:00
parent 76e2530cfb
commit 92da29a00d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=51125
2 changed files with 22 additions and 18 deletions
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20
lib/libalias/alias.c
View File

@ -118,7 +118,7 @@
TcpMonitorIn() -- These routines monitor TCP connections, and
TcpMonitorOut() delete a link when a connection is closed.
These routines look for SYN, ACK and RST flags to determine when TCP
These routines look for SYN, FIN and RST flags to determine when TCP
connections open and close. When a TCP connection closes, the data
structure containing packet aliasing information is deleted after
a timeout period.
@ -140,12 +140,13 @@ TcpMonitorIn(struct ip *pip, struct alias_link *link)
switch (GetStateIn(link))
{
case ALIAS_TCP_STATE_NOT_CONNECTED:
if (tc->th_flags & TH_SYN)
if (tc->th_flags & TH_RST)
SetStateIn(link, ALIAS_TCP_STATE_DISCONNECTED);
else if (tc->th_flags & TH_SYN)
SetStateIn(link, ALIAS_TCP_STATE_CONNECTED);
/*FALLTHROUGH*/
break;
case ALIAS_TCP_STATE_CONNECTED:
if (tc->th_flags & TH_FIN
|| tc->th_flags & TH_RST)
if (tc->th_flags & (TH_FIN | TH_RST))
SetStateIn(link, ALIAS_TCP_STATE_DISCONNECTED);
break;
}
@ -161,12 +162,13 @@ TcpMonitorOut(struct ip *pip, struct alias_link *link)
switch (GetStateOut(link))
{
case ALIAS_TCP_STATE_NOT_CONNECTED:
if (tc->th_flags & TH_SYN)
if (tc->th_flags & TH_RST)
SetStateOut(link, ALIAS_TCP_STATE_DISCONNECTED);
else if (tc->th_flags & TH_SYN)
SetStateOut(link, ALIAS_TCP_STATE_CONNECTED);
/*FALLTHROUGH*/
break;
case ALIAS_TCP_STATE_CONNECTED:
if (tc->th_flags & TH_FIN
|| tc->th_flags & TH_RST)
if (tc->th_flags & (TH_FIN | TH_RST))
SetStateOut(link, ALIAS_TCP_STATE_DISCONNECTED);
break;
}

20
sys/netinet/libalias/alias.c
View File

@ -118,7 +118,7 @@
TcpMonitorIn() -- These routines monitor TCP connections, and
TcpMonitorOut() delete a link when a connection is closed.
These routines look for SYN, ACK and RST flags to determine when TCP
These routines look for SYN, FIN and RST flags to determine when TCP
connections open and close. When a TCP connection closes, the data
structure containing packet aliasing information is deleted after
a timeout period.
@ -140,12 +140,13 @@ TcpMonitorIn(struct ip *pip, struct alias_link *link)
switch (GetStateIn(link))
{
case ALIAS_TCP_STATE_NOT_CONNECTED:
if (tc->th_flags & TH_SYN)
if (tc->th_flags & TH_RST)
SetStateIn(link, ALIAS_TCP_STATE_DISCONNECTED);
else if (tc->th_flags & TH_SYN)
SetStateIn(link, ALIAS_TCP_STATE_CONNECTED);
/*FALLTHROUGH*/
break;
case ALIAS_TCP_STATE_CONNECTED:
if (tc->th_flags & TH_FIN
|| tc->th_flags & TH_RST)
if (tc->th_flags & (TH_FIN | TH_RST))
SetStateIn(link, ALIAS_TCP_STATE_DISCONNECTED);
break;
}
@ -161,12 +162,13 @@ TcpMonitorOut(struct ip *pip, struct alias_link *link)
switch (GetStateOut(link))
{
case ALIAS_TCP_STATE_NOT_CONNECTED:
if (tc->th_flags & TH_SYN)
if (tc->th_flags & TH_RST)
SetStateOut(link, ALIAS_TCP_STATE_DISCONNECTED);
else if (tc->th_flags & TH_SYN)
SetStateOut(link, ALIAS_TCP_STATE_CONNECTED);
/*FALLTHROUGH*/
break;
case ALIAS_TCP_STATE_CONNECTED:
if (tc->th_flags & TH_FIN
|| tc->th_flags & TH_RST)
if (tc->th_flags & (TH_FIN | TH_RST))
SetStateOut(link, ALIAS_TCP_STATE_DISCONNECTED);
break;
}