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7dd76c3411
This is implemented via GetBestInterfaceEx. Should we encounter errors or fail to resolve a valid, non-Tailscale interface, we fall back to returning the index for the default interface instead. Fixes #12551 Signed-off-by: Aaron Klotz <aaron@tailscale.com>
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
// Code generated by 'go generate'; DO NOT EDIT.
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package netns
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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.zx2c4.com/wireguard/windows/tunnel/winipcfg"
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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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modiphlpapi = windows.NewLazySystemDLL("iphlpapi.dll")
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procGetBestInterfaceEx = modiphlpapi.NewProc("GetBestInterfaceEx")
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)
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func getBestInterfaceEx(sockaddr *winipcfg.RawSockaddrInet, bestIfaceIndex *uint32) (ret error) {
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r0, _, _ := syscall.Syscall(procGetBestInterfaceEx.Addr(), 2, uintptr(unsafe.Pointer(sockaddr)), uintptr(unsafe.Pointer(bestIfaceIndex)), 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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