sockopts

Documentation

Overview

Package sockopts contains logic for applying socket options.

Index

• func SetBufferSize(pconn nettype.PacketConn, direction BufferDirection, size int) (errForce error, errPortable error)
• func SetICMPErrImmunity(pconn nettype.PacketConn) error
• type BufferDirection

Functions

func SetBufferSize

func SetBufferSize(pconn nettype.PacketConn, direction BufferDirection, size int) (errForce error, errPortable error)

SetBufferSize sets pconn's buffer to size for direction. It attempts (errForce) to set SO_SNDBUFFORCE or SO_RECVBUFFORCE which can overcome the limit of net.core.{r,w}mem_max, but require CAP_NET_ADMIN. It falls back to the portable implementation (errPortable) if that fails, which may be silently capped to net.core.{r,w}mem_max.

If pconn is not a *net.UDPConn, then SetBufferSize is no-op.

func SetICMPErrImmunity

func SetICMPErrImmunity(pconn nettype.PacketConn) error

SetICMPErrImmunity is no-op on non-Windows.

Types

type BufferDirection

type BufferDirection string

BufferDirection represents either the read/receive or write/send direction of a socket buffer.

const (
	ReadDirection  BufferDirection = "read"
	WriteDirection BufferDirection = "write"
)