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tun: windows: obsolete 256 packets per exchange buffer limitation

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-06-05 11:55:28 +02:00
parent 625e445b22
commit e4b0ef29a1
1 changed files with 1 additions and 2 deletions
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3
tun/tun_windows.go
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@ -19,7 +19,6 @@ import (
) )
const ( const (
packetExchangeMax uint32 = 256 // Number of packets that may be written at a time
packetExchangeAlignment uint32 = 16 // Number of bytes packets are aligned to in exchange buffers packetExchangeAlignment uint32 = 16 // Number of bytes packets are aligned to in exchange buffers
packetSizeMax uint32 = 0xf000 - packetExchangeAlignment // Maximum packet size packetSizeMax uint32 = 0xf000 - packetExchangeAlignment // Maximum packet size
packetExchangeSize uint32 = 0x100000 // Exchange buffer size (defaults to 1MiB) packetExchangeSize uint32 = 0x100000 // Exchange buffer size (defaults to 1MiB)
@ -339,7 +338,7 @@ func (tun *NativeTun) putTunPacket(buff []byte) error {
} }
pSize := packetAlign(packetExchangeAlignment + size) pSize := packetAlign(packetExchangeAlignment + size)
if tun.wrBuff.packetNum >= packetExchangeMax || tun.wrBuff.offset+pSize >= packetExchangeSize { if tun.wrBuff.offset+pSize >= packetExchangeSize {
// Exchange buffer is full -> flush first. // Exchange buffer is full -> flush first.
err := tun.Flush() err := tun.Flush()
if err != nil { if err != nil {