From 37b80faa2a933ada72c52bf189fce38c8770d21f Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 25 Feb 2019 18:47:03 +0100
Subject: service: introduce base of services

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 service/zsyscall_windows.go | 116 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 service/zsyscall_windows.go

(limited to 'service/zsyscall_windows.go')

diff --git a/service/zsyscall_windows.go b/service/zsyscall_windows.go
new file mode 100644
index 00000000..79d4ccf5
--- /dev/null
+++ b/service/zsyscall_windows.go
@@ -0,0 +1,116 @@
+// Code generated by 'go generate'; DO NOT EDIT.
+
+package service
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
+var (
+	modwtsapi32 = windows.NewLazySystemDLL("wtsapi32.dll")
+	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
+	moduser32   = windows.NewLazySystemDLL("user32.dll")
+
+	procWTSQueryUserToken      = modwtsapi32.NewProc("WTSQueryUserToken")
+	procWTSEnumerateSessionsW  = modwtsapi32.NewProc("WTSEnumerateSessionsW")
+	procWTSFreeMemory          = modwtsapi32.NewProc("WTSFreeMemory")
+	procCreateWellKnownSid     = modadvapi32.NewProc("CreateWellKnownSid")
+	procPostMessageW           = moduser32.NewProc("PostMessageW")
+	procRegisterWindowMessageW = moduser32.NewProc("RegisterWindowMessageW")
+)
+
+func wtfQueryUserToken(session uint32, token *windows.Token) (err error) {
+	r1, _, e1 := syscall.Syscall(procWTSQueryUserToken.Addr(), 2, uintptr(session), uintptr(unsafe.Pointer(token)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func wtsEnumerateSessions(handle windows.Handle, reserved uint32, version uint32, sessions **wtsSessionInfo, count *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procWTSEnumerateSessionsW.Addr(), 5, uintptr(handle), uintptr(reserved), uintptr(version), uintptr(unsafe.Pointer(sessions)), uintptr(unsafe.Pointer(count)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func wtsFreeMemory(ptr uintptr) {
+	syscall.Syscall(procWTSFreeMemory.Addr(), 1, uintptr(ptr), 0, 0)
+	return
+}
+
+func createWellKnownSid(sidType wellKnownSidType, domainSid *windows.SID, sid *windows.SID, sizeSid *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procCreateWellKnownSid.Addr(), 4, uintptr(sidType), uintptr(unsafe.Pointer(domainSid)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(sizeSid)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func postMessage(hwnd windows.Handle, msg uint, wparam uintptr, lparam uintptr) (err error) {
+	r1, _, e1 := syscall.Syscall6(procPostMessageW.Addr(), 4, uintptr(hwnd), uintptr(msg), uintptr(wparam), uintptr(lparam), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func registerWindowMessage(name *uint16) (message uint, err error) {
+	r0, _, e1 := syscall.Syscall(procRegisterWindowMessageW.Addr(), 1, uintptr(unsafe.Pointer(name)), 0, 0)
+	message = uint(r0)
+	if message == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
-- 
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