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c17a817769
The Layered Service Provider (LSP) is a deprecated (but still supported) mechanism for inserting user-mode DLLs into a filter chain between the Winsock API surface (ie, ws2_32.dll) and the internal user-mode interface to the networking stack. While their use is becoming more rare due to the aforementioned deprecation, it is still possible for third-party software to install their DLLs into this filter chain and interfere with Winsock API calls. Knowing whether this is happening is useful for troubleshooting. Fixes https://github.com/tailscale/tailscale/issues/8142 Signed-off-by: Aaron Klotz <aaron@tailscale.com>
76 lines
2.8 KiB
Go
76 lines
2.8 KiB
Go
// Code generated by 'go generate'; DO NOT EDIT.
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package osdiag
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import (
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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"golang.org/x/sys/windows/registry"
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)
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var _ unsafe.Pointer
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// Do the interface allocations only once for common
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// Errno values.
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const (
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errnoERROR_IO_PENDING = 997
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)
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var (
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errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
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errERROR_EINVAL error = syscall.EINVAL
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)
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// errnoErr returns common boxed Errno values, to prevent
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// allocations at runtime.
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func errnoErr(e syscall.Errno) error {
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switch e {
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case 0:
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return errERROR_EINVAL
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case errnoERROR_IO_PENDING:
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return errERROR_IO_PENDING
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}
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// TODO: add more here, after collecting data on the common
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// error values see on Windows. (perhaps when running
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// all.bat?)
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return e
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}
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var (
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modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
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modws2_32 = windows.NewLazySystemDLL("ws2_32.dll")
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procRegEnumValueW = modadvapi32.NewProc("RegEnumValueW")
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procWSCEnumProtocols = modws2_32.NewProc("WSCEnumProtocols")
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procWSCGetProviderInfo = modws2_32.NewProc("WSCGetProviderInfo")
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procWSCGetProviderPath = modws2_32.NewProc("WSCGetProviderPath")
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)
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func regEnumValue(key registry.Key, index uint32, valueName *uint16, valueNameLen *uint32, reserved *uint32, valueType *uint32, pData *byte, cbData *uint32) (ret error) {
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r0, _, _ := syscall.Syscall9(procRegEnumValueW.Addr(), 8, uintptr(key), uintptr(index), uintptr(unsafe.Pointer(valueName)), uintptr(unsafe.Pointer(valueNameLen)), uintptr(unsafe.Pointer(reserved)), uintptr(unsafe.Pointer(valueType)), uintptr(unsafe.Pointer(pData)), uintptr(unsafe.Pointer(cbData)), 0)
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if r0 != 0 {
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ret = syscall.Errno(r0)
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}
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return
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}
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func wscEnumProtocols(iProtocols *int32, protocolBuffer *wsaProtocolInfo, bufLen *uint32, errno *int32) (ret int32) {
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r0, _, _ := syscall.Syscall6(procWSCEnumProtocols.Addr(), 4, uintptr(unsafe.Pointer(iProtocols)), uintptr(unsafe.Pointer(protocolBuffer)), uintptr(unsafe.Pointer(bufLen)), uintptr(unsafe.Pointer(errno)), 0, 0)
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ret = int32(r0)
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return
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}
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func wscGetProviderInfo(providerId *windows.GUID, infoType _WSC_PROVIDER_INFO_TYPE, info unsafe.Pointer, infoSize *uintptr, flags uint32, errno *int32) (ret int32) {
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r0, _, _ := syscall.Syscall6(procWSCGetProviderInfo.Addr(), 6, uintptr(unsafe.Pointer(providerId)), uintptr(infoType), uintptr(info), uintptr(unsafe.Pointer(infoSize)), uintptr(flags), uintptr(unsafe.Pointer(errno)))
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ret = int32(r0)
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return
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}
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func wscGetProviderPath(providerId *windows.GUID, providerDllPath *uint16, providerDllPathLen *int32, errno *int32) (ret int32) {
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r0, _, _ := syscall.Syscall6(procWSCGetProviderPath.Addr(), 4, uintptr(unsafe.Pointer(providerId)), uintptr(unsafe.Pointer(providerDllPath)), uintptr(unsafe.Pointer(providerDllPathLen)), uintptr(unsafe.Pointer(errno)), 0, 0)
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ret = int32(r0)
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return
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}
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