OpenVPN continue work with invalid socket

[Aleksey Vasenev]

Windows 7

OpenVPN must close socket (and possible recreate it) if some socket functions (WSARecvFrom, WSARecv, WSASendTo, WSASend, WSAGetOverlappedResult) return WSAECONNRESET.

I see in source code that socket_connection_reset return true for TCP sockets only, but this error may occure for UDP also:
​http://msdn.microsoft.com/en-us/library/ms741686(v=vs.85).aspx
"The application should close the socket as it is no longer usable. For a UPD datagram socket, this error would indicate that a previous send operation resulted in an ICMP "Port Unreachable" message."

Server config:
dev tap
ifconfig 10.7.34.1 255.255.255.0
secret secret.key
comp-lzo
ping 10

Client config:
dev tap
ifconfig 10.7.34.2 255.255.255.0
secret secret.key
remote xxx.homeip.net
comp-lzo
ping 10
ping-restart 60

Server has dynamic IP address. Client behind NAT.

When server change IP address, in client log I see WSAECONNRESET error. Using verb 11 I found that WSAGetOverlappedResult (only one call in sources) return this error.

After client restart all works ok. I think OpenVPN must restart connection if see WSAECONNRESET error.

[Aleksey Vasenev]

I choose invalid component, but can't change.

[Samuli Seppänen]

Can this be reproduced on Git "master" or latest official release (currently 2.3.2)?

[Samuli Seppänen]

This bug has been reported against a really old version of OpenVPN and nobody has reproduced it on a recent OpenVPN release. Closing.