tun: windows: serialize write calls
This commit is contained in:
parent
89dd065e53
commit
4fa2ea6a2d
@ -9,6 +9,7 @@ import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
"unsafe"
|
||||
@ -40,6 +41,7 @@ type NativeTun struct {
|
||||
forcedMTU int
|
||||
rate rateJuggler
|
||||
rings *wintun.RingDescriptor
|
||||
writeLock sync.Mutex
|
||||
}
|
||||
|
||||
const WintunPool = wintun.Pool("WireGuard")
|
||||
@ -219,6 +221,9 @@ func (tun *NativeTun) Write(buff []byte, offset int) (int, error) {
|
||||
tun.rate.update(uint64(packetSize))
|
||||
alignedPacketSize := wintun.PacketAlign(uint32(unsafe.Sizeof(wintun.PacketHeader{})) + packetSize)
|
||||
|
||||
tun.writeLock.Lock()
|
||||
defer tun.writeLock.Unlock()
|
||||
|
||||
buffHead := atomic.LoadUint32(&tun.rings.Receive.Ring.Head)
|
||||
if buffHead >= wintun.PacketCapacity {
|
||||
return 0, os.ErrClosed
|
||||
|
Loading…
Reference in New Issue
Block a user