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Add routine for looking up account names

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Signed-off-by: John Starks <jostarks@microsoft.com>
This commit is contained in:
John Starks
2016-01-31 16:08:10 -08:00
parent fe517a5118
commit 89bdf52a5b
5 changed files with 183 additions and 26 deletions
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pipe.go
+27 -21
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@@ -10,11 +10,15 @@ import (
)
//sys connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) = ConnectNamedPipe
//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateNamedPipeW
//sys createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateFileW
//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *securityAttributes) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateNamedPipeW
//sys createFile(name string, access uint32, mode uint32, sa *securityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateFileW
//sys waitNamedPipe(name string, timeout uint32) (err error) = WaitNamedPipeW
//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
//sys localFree(mem uintptr) = LocalFree
type securityAttributes struct {
Length uint32
SecurityDescriptor *byte
InheritHandle uint32
}
const (
cERROR_PIPE_BUSY = syscall.Errno(231)
@@ -127,31 +131,23 @@ type acceptResponse struct {
type win32PipeListener struct {
firstHandle syscall.Handle
path string
securityDescriptor string
securityDescriptor []byte
acceptCh chan (chan acceptResponse)
closeCh chan int
doneCh chan int
}
func makeServerPipeHandle(path, securityDescriptor string, first bool) (syscall.Handle, error) {
func makeServerPipeHandle(path string, securityDescriptor []byte, first bool) (syscall.Handle, error) {
var flags uint32 = cPIPE_ACCESS_DUPLEX | syscall.FILE_FLAG_OVERLAPPED
if first {
flags |= cFILE_FLAG_FIRST_PIPE_INSTANCE
}
var sd uintptr
if securityDescriptor != "" {
err := convertStringSecurityDescriptorToSecurityDescriptor(securityDescriptor, 1, &sd, nil)
if err != nil {
return 0, err
}
}
var sa syscall.SecurityAttributes
var sa securityAttributes
sa.Length = uint32(unsafe.Sizeof(sa))
sa.SecurityDescriptor = sd
h, err := createNamedPipe(path, flags, cPIPE_REJECT_REMOTE_CLIENTS, cPIPE_UNLIMITED_INSTANCES, 4096, 4096, 0, &sa)
if sd != 0 {
localFree(sd)
if securityDescriptor != nil {
sa.SecurityDescriptor = &securityDescriptor[0]
}
h, err := createNamedPipe(path, flags, cPIPE_REJECT_REMOTE_CLIENTS, cPIPE_UNLIMITED_INSTANCES, 4096, 4096, 0, &sa)
if err != nil {
return 0, &os.PathError{"open", path, err}
}
@@ -211,8 +207,18 @@ func (l *win32PipeListener) listenerRoutine() {
close(l.doneCh)
}
func ListenPipe(path, securityDescriptor string) (net.Listener, error) {
h, err := makeServerPipeHandle(path, securityDescriptor, true)
func ListenPipe(path, sddl string) (net.Listener, error) {
var (
sd []byte
err error
)
if sddl != "" {
sd, err = sddlToSecurityDescriptor(sddl)
if err != nil {
return nil, err
}
}
h, err := makeServerPipeHandle(path, sd, true)
if err != nil {
return nil, err
}
@@ -227,7 +233,7 @@ func ListenPipe(path, securityDescriptor string) (net.Listener, error) {
l := &win32PipeListener{
firstHandle: h,
path: path,
securityDescriptor: securityDescriptor,
securityDescriptor: sd,
acceptCh: make(chan (chan acceptResponse)),
closeCh: make(chan int),
doneCh: make(chan int),