From 2d2831e3541c8ae3c84f17cfd1bf0a26f2027044 Mon Sep 17 00:00:00 2001 From: Rahat Mahmood Date: Thu, 6 Jun 2019 15:03:44 -0700 Subject: Track and export socket state. This is necessary for implementing network diagnostic interfaces like /proc/net/{tcp,udp,unix} and sock_diag(7). For pass-through endpoints such as hostinet, we obtain the socket state from the backend. For netstack, we add explicit tracking of TCP states. PiperOrigin-RevId: 251934850 --- pkg/tcpip/tcpip.go | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'pkg/tcpip/tcpip.go') diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index f9886c6e4..85ef014d0 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -377,6 +377,10 @@ type Endpoint interface { // GetSockOpt gets a socket option. opt should be a pointer to one of the // *Option types. GetSockOpt(opt interface{}) *Error + + // State returns a socket's lifecycle state. The returned value is + // protocol-specific and is primarily used for diagnostics. + State() uint32 } // WriteOptions contains options for Endpoint.Write. -- cgit v1.2.3