diff options
| author | Ruslan Ermilov <ru@FreeBSD.org> | 1999-09-10 15:27:34 +0000 |
|---|---|---|
| committer | Ruslan Ermilov <ru@FreeBSD.org> | 1999-09-10 15:27:34 +0000 |
| commit | 92da29a00df7e198966bfffd678b356e8317ddbd (patch) | |
| tree | 2d61105ce4babaf6a45ce333a930ecd0525d2d1e /sys/netinet | |
| parent | 76e2530cfb099daabe31d736ca0ec8b7416723a7 (diff) | |
| download | src-test2-92da29a00df7e198966bfffd678b356e8317ddbd.tar.gz src-test2-92da29a00df7e198966bfffd678b356e8317ddbd.zip | |
Notes
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/libalias/alias.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/sys/netinet/libalias/alias.c b/sys/netinet/libalias/alias.c index 38089120b5f6..9c072dfcfa20 100644 --- a/sys/netinet/libalias/alias.c +++ b/sys/netinet/libalias/alias.c @@ -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; } |