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hotfix: use 64k buffer to read tun device packet for windows tun device mtu 65535 (#404)

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This commit is contained in:
naison
2024-12-17 11:46:09 +08:00
committed by GitHub
parent 51166477c2
commit 68d550a80d
8 changed files with 43 additions and 43 deletions
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16
pkg/core/tunhandlerclient.go
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@@ -87,7 +87,7 @@ func transportTunClient(ctx context.Context, tunInbound <-chan *DataElem, tunOut
continue
}
_, err := packetConn.WriteTo(e.data[:e.length], remoteAddr)
config.SPool.Put(e.data[:])
config.LPool.Put(e.data[:])
if err != nil {
util.SafeWrite(errChan, errors.Wrap(err, fmt.Sprintf("failed to write packet to remote %s", remoteAddr)))
return
@@ -97,10 +97,10 @@ func transportTunClient(ctx context.Context, tunInbound <-chan *DataElem, tunOut
go func() {
for {
buf := config.SPool.Get().([]byte)[:]
buf := config.LPool.Get().([]byte)[:]
n, _, err := packetConn.ReadFrom(buf[:])
if err != nil {
config.SPool.Put(buf[:])
config.LPool.Put(buf[:])
util.SafeWrite(errChan, errors.Wrap(err, fmt.Sprintf("failed to read packet from remote %s", remoteAddr)))
return
}
@@ -146,15 +146,15 @@ func (d *ClientDevice) SetTunInboundHandler(handler func(tunInbound <-chan *Data
func (d *ClientDevice) readFromTun() {
for {
buf := config.SPool.Get().([]byte)[:]
buf := config.LPool.Get().([]byte)[:]
n, err := d.tun.Read(buf[:])
if err != nil {
util.SafeWrite(d.chExit, err)
config.SPool.Put(buf[:])
config.LPool.Put(buf[:])
return
}
if n == 0 {
config.SPool.Put(buf[:])
config.LPool.Put(buf[:])
continue
}
@@ -163,7 +163,7 @@ func (d *ClientDevice) readFromTun() {
src, dst, err = util.ParseIP(buf[:n])
if err != nil {
log.Debugf("[TUN-GVISOR] Unknown packet: %v", err)
config.SPool.Put(buf[:])
config.LPool.Put(buf[:])
continue
}
log.Tracef("[TUN-RAW] SRC: %s, DST: %s, Length: %d", src.String(), dst, n)
@@ -174,7 +174,7 @@ func (d *ClientDevice) readFromTun() {
func (d *ClientDevice) writeToTun() {
for e := range d.tunOutbound {
_, err := d.tun.Write(e.data[:e.length])
config.SPool.Put(e.data[:])
config.LPool.Put(e.data[:])
if err != nil {
util.SafeWrite(d.chExit, err)
return