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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package nettest
import "syscall"
func supportsRawSocket() bool {
// From http://msdn.microsoft.com/en-us/library/windows/desktop/ms740548.aspx:
// Note: To use a socket of type SOCK_RAW requires administrative privileges.
// Users running Winsock applications that use raw sockets must be a member of
// the Administrators group on the local computer, otherwise raw socket calls
// will fail with an error code of WSAEACCES. On Windows Vista and later, access
// for raw sockets is enforced at socket creation. In earlier versions of Windows,
// access for raw sockets is enforced during other socket operations.
for _, af := range []int{syscall.AF_INET, syscall.AF_INET6} {
s, err := syscall.Socket(af, syscall.SOCK_RAW, 0)
if err != nil {
continue
}
syscall.Closesocket(s)
return true
}
return false
}
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