From daf0d3f6ca3aad6f3f9ab4d762546c6dee78fa57 Mon Sep 17 00:00:00 2001 From: Nayana Bidari Date: Tue, 26 Jan 2021 08:23:49 -0800 Subject: Move SO_SNDBUF to socketops. This CL moves {S,G}etsockopt of SO_SNDBUF from all endpoints to socketops. For unix sockets, we do not support setting of this option. PiperOrigin-RevId: 353871484 --- pkg/tcpip/tcpip.go | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) (limited to 'pkg/tcpip/tcpip.go') diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index 32e4f02ca..4e2c4f906 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -826,10 +826,6 @@ const ( // number of unread bytes in the input buffer should be returned. ReceiveQueueSizeOption - // SendBufferSizeOption is used by SetSockOptInt/GetSockOptInt to - // specify the send buffer size option. - SendBufferSizeOption - // ReceiveBufferSizeOption is used by SetSockOptInt/GetSockOptInt to // specify the receive buffer size option. ReceiveBufferSizeOption @@ -1234,6 +1230,31 @@ type IPPacketInfo struct { DestinationAddr Address } +// SendBufferSizeOption is used by stack.(Stack*).Option/SetOption to +// get/set the default, min and max send buffer sizes. +type SendBufferSizeOption struct { + // Min is the minimum size for send buffer. + Min int + + // Default is the default size for send buffer. + Default int + + // Max is the maximum size for send buffer. + Max int +} + +// GetSendBufferLimits is used to get the send buffer size limits. +type GetSendBufferLimits func(StackHandler) SendBufferSizeOption + +// GetStackSendBufferLimits is used to get default, min and max send buffer size. +func GetStackSendBufferLimits(so StackHandler) SendBufferSizeOption { + var ss SendBufferSizeOption + if err := so.Option(&ss); err != nil { + panic(fmt.Sprintf("s.Option(%#v) = %s", ss, err)) + } + return ss +} + // Route is a row in the routing table. It specifies through which NIC (and // gateway) sets of packets should be routed. A row is considered viable if the // masked target address matches the destination address in the row. -- cgit v1.2.3