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tun: windows: Attempt to reopen handle on all errors

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-04-03 05:40:35 +02:00
parent ac25702eaf
commit 421c1f9143
1 changed files with 9 additions and 15 deletions
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20
tun/tun_windows.go
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@ -188,13 +188,6 @@ func (tun *NativeTun) getTUN() (read *os.File, write *os.File, err error) {
return
}
func (tun *NativeTun) shouldReopenHandle(err error) bool {
if pe, ok := err.(*os.PathError); ok && pe.Err == windows.ERROR_OPERATION_ABORTED {
return !tun.close
}
return false
}
func (tun *NativeTun) Name() (string, error) {
return tun.wt.GetInterfaceName()
}
@ -267,13 +260,14 @@ func (tun *NativeTun) Read(buff []byte, offset int) (int, error) {
// Fill queue.
n, err := file.Read(tun.rdBuff.data[:])
if err != nil {
tun.rdBuff.offset = 0
tun.rdBuff.avail = 0
if tun.shouldReopenHandle(err) {
if tun.close {
return 0, err
}
tun.closeTUN()
continue
}
return 0, err
}
tun.rdBuff.offset = 0
tun.rdBuff.avail = uint32(n)
}
@ -298,12 +292,12 @@ func (tun *NativeTun) Flush() error {
tun.wrBuff.packetNum = 0
tun.wrBuff.offset = 0
if err != nil {
if tun.shouldReopenHandle(err) {
if tun.close {
return err
}
tun.closeTUN()
continue
}
return err
}
return nil
}
}