tun: windows: never retry open on Windows 10
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parent
1f48971a80
commit
c69d026649
6
go.mod
6
go.mod
@ -3,7 +3,7 @@ module golang.zx2c4.com/wireguard
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go 1.12
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require (
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golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f
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golang.org/x/net v0.0.0-20190522155817-f3200d17e092
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golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444
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golang.org/x/crypto v0.0.0-20190617133340-57b3e21c3d56
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golang.org/x/net v0.0.0-20190613194153-d28f0bde5980
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golang.org/x/sys v0.0.0-20190618155005-516e3c20635f
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)
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12
go.sum
12
go.sum
@ -1,11 +1,11 @@
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f h1:R423Cnkcp5JABoeemiGEPlt9tHXFfw5kvc0yqlxRPWo=
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golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/crypto v0.0.0-20190617133340-57b3e21c3d56 h1:ZpKuNIejY8P0ExLOVyKhb0WsgG8UdvHXe6TWjY7eL6k=
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golang.org/x/crypto v0.0.0-20190617133340-57b3e21c3d56/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190522155817-f3200d17e092 h1:4QSRKanuywn15aTZvI/mIDEgPQpswuFndXpOj3rKEco=
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golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
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golang.org/x/net v0.0.0-20190613194153-d28f0bde5980 h1:dfGZHvZk057jK2MCeWus/TowKpJ8y4AmooUzdBSR9GU=
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golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444 h1:/d2cWp6PSamH4jDPFLyO150psQdqvtoNX8Zjg3AQ31g=
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golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20190618155005-516e3c20635f h1:dHNZYIYdq2QuU6w73vZ/DzesPbVlZVYZTtTZmrnsbQ8=
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golang.org/x/sys v0.0.0-20190618155005-516e3c20635f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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@ -55,6 +55,15 @@ func packetAlign(size uint32) uint32 {
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return (size + (packetExchangeAlignment - 1)) &^ (packetExchangeAlignment - 1)
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}
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var shouldRetryOpen = windows.RtlGetVersion().MajorVersion < 10
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func maybeRetry(x int) int {
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if shouldRetryOpen {
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return x
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}
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return 0
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}
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//
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// CreateTUN creates a Wintun adapter with the given name. Should a Wintun
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// adapter with the same name exist, it is reused.
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@ -104,7 +113,7 @@ func CreateTUNWithRequestedGUID(ifname string, requestedGUID *windows.GUID) (Dev
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}
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func (tun *NativeTun) openTUN() error {
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retries := retryTimeout * retryRate
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retries := maybeRetry(retryTimeout * retryRate)
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if tun.close {
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return os.ErrClosed
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}
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@ -238,7 +247,7 @@ func (tun *NativeTun) Read(buff []byte, offset int) (int, error) {
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default:
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}
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retries := 1000
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retries := maybeRetry(1000)
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for {
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if tun.rdBuff.offset+packetExchangeAlignment <= tun.rdBuff.avail {
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// Get packet from the exchange buffer.
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@ -302,7 +311,7 @@ func (tun *NativeTun) Flush() error {
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tun.wrBuff.packetNum = 0
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tun.wrBuff.offset = 0
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}()
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retries := 1000
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retries := maybeRetry(1000)
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for {
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// Get TUN data pipe.
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@ -30,7 +30,7 @@ type Wintun struct {
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var deviceClassNetGUID = windows.GUID{Data1: 0x4d36e972, Data2: 0xe325, Data3: 0x11ce, Data4: [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}}
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const (
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hardwareID = "Wintun"
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hardwareID = "Wintun"
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waitForRegistryTimeout = time.Second * 10
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)
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