build: use tap-windows.h as external dependency

tap-windows.h is provided by the tap project

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: Samuli Seppänen <samuli@openvpn.net>
Signed-off-by: David Sommerseth <davids@redhat.com>

6 files changed, 17 insertions, 72 deletions

diff --git a/configure.ac b/configure.ac
index 2b095a3..c6cabee 100644
--- a/configure.ac
+++ b/configure.ac
@@ -666,6 +666,18 @@ PKG_CHECK_MODULES(
 	)]
 )
 
+AC_ARG_VAR([TAP_WINDOWS_CFLAGS], [C compiler flags for TAP-Windows])
+if test "${WIN32}" = "yes"; then
+	old_CFLAGS="${CFLAGS}"
+	CFLAGS="${CFLAGS} ${TAP_WINDOWS_CFLAGS}"
+	AC_CHECK_HEADERS(
+		[tap-windows.h],
+		,
+		[AC_MSG_ERROR([tap-windows.h is required but missing])]
+	)
+	CFLAGS="${old_CFLAGS}"
+fi
+
 if test "${have_openssl_crypto}" = "yes"; then
 	saved_CFLAGS="${CFLAGS}"
 	saved_LIBS="${LIBS}"
diff --git a/include/Makefile.am b/include/Makefile.am
index 36eeb6c..13dee61 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -12,6 +12,4 @@
 MAINTAINERCLEANFILES = \
 	$(srcdir)/Makefile.in
 
-dist_noinst_HEADERS = tap-windows.h
-
 include_HEADERS = openvpn-plugin.h
diff --git a/include/tap-windows.h b/include/tap-windows.h
deleted file mode 100644
index 243a4a2..0000000
--- a/include/tap-windows.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- *  TAP-Windows -- A kernel driver to provide virtual tap
- *                 device functionality on Windows.
- *
- *  This code was inspired by the CIPE-Win32 driver by Damion K. Wilson.
- *
- *  This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc.,
- *  and is released under the GPL version 2 (see below).
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef __TAP_WIN_H
-#define __TAP_WIN_H
-
-//=============
-// TAP IOCTLs
-//=============
-
-#define TAP_WIN_CONTROL_CODE(request,method) \
-  CTL_CODE (FILE_DEVICE_UNKNOWN, request, method, FILE_ANY_ACCESS)
-
-// Present in 8.1
-
-#define TAP_WIN_IOCTL_GET_MAC               TAP_WIN_CONTROL_CODE (1, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_GET_VERSION           TAP_WIN_CONTROL_CODE (2, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_GET_MTU               TAP_WIN_CONTROL_CODE (3, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_GET_INFO              TAP_WIN_CONTROL_CODE (4, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_CONFIG_POINT_TO_POINT TAP_WIN_CONTROL_CODE (5, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_SET_MEDIA_STATUS      TAP_WIN_CONTROL_CODE (6, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_CONFIG_DHCP_MASQ      TAP_WIN_CONTROL_CODE (7, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_GET_LOG_LINE          TAP_WIN_CONTROL_CODE (8, METHOD_BUFFERED)
-#define TAP_WIN_IOCTL_CONFIG_DHCP_SET_OPT   TAP_WIN_CONTROL_CODE (9, METHOD_BUFFERED)
-
-// Added in 8.2
-
-/* obsoletes TAP_WIN_IOCTL_CONFIG_POINT_TO_POINT */
-#define TAP_WIN_IOCTL_CONFIG_TUN            TAP_WIN_CONTROL_CODE (10, METHOD_BUFFERED)
-
-//=================
-// Registry keys
-//=================
-
-#define ADAPTER_KEY "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
-
-#define NETWORK_CONNECTIONS_KEY "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
-
-//======================
-// Filesystem prefixes
-//======================
-
-#define USERMODEDEVICEDIR "\\\\.\\Global\\"
-#define SYSDEVICEDIR      "\\Device\\"
-#define USERDEVICEDIR     "\\DosDevices\\Global\\"
-#define TAP_WIN_SUFFIX    ".tap"
-
-#endif
diff --git a/msvc-env.bat b/msvc-env.bat
index ef9c7bb..e37757b 100644
--- a/msvc-env.bat
+++ b/msvc-env.bat
@@ -23,7 +23,9 @@ if "%OPENVPN_DEPROOT%" == "" set OPENVPN_DEPROOT=c:\Temp\openvpn-deps
 if "%OPENSSL_HOME%" == "" set OPENSSL_HOME=%OPENVPN_DEPROOT%
 if "%LZO_HOME%" == "" set LZO_HOME=%OPENVPN_DEPROOT%
 if "%PKCS11H_HOME%" == "" set PKCS11H_HOME=%OPENVPN_DEPROOT%
+if "%TAP_WINDOWS_HOME%" == "" set TAP_WINDOWS_HOME=%OPENVPN_DEPROOT%
 
 if not exist "%OPENSSL_HOME%" echo WARNING: openssl '%OPENSSL_HOME%' does not exist
 if not exist "%LZO_HOME%" echo WARNING: lzo '%LZO_HOME%' does not exist
 if not exist "%PKCS11H_HOME%" echo WARNING: pkcs11-helper '%PKCS11H_HOME%' does not exist
+if not exist "%TAP_WINDOWS_HOME%" echo WARNING: tap-windows '%TAP_WINDOWS_HOME%' does not exist
diff --git a/src/openvpn/Makefile.am b/src/openvpn/Makefile.am
index 6ba12b8..1410021 100644
--- a/src/openvpn/Makefile.am
+++ b/src/openvpn/Makefile.am
@@ -22,6 +22,7 @@ INCLUDES = \
 	-I$(top_srcdir)/src/compat
 
 AM_CFLAGS = \
+	$(TAP_WINDOWS_CFLAGS) \
 	$(OPTIONAL_CRYPTO_CFLAGS) \
 	$(OPTIONAL_LZO_CFLAGS) \
 	$(OPTIONAL_PKCS11_HELPER_CFLAGS)
diff --git a/src/openvpn/openvpn.vcproj b/src/openvpn/openvpn.vcproj
index 4680e52..c1aa8a0 100644
--- a/src/openvpn/openvpn.vcproj
+++ b/src/openvpn/openvpn.vcproj
@@ -41,7 +41,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="$(SOURCEBASE);$(SOURCEBASE)/src/compat;$(SOURCEBASE)/include;$(OPENSSL_HOME)/include;$(LZO_HOME)/include;$(PKCS11H_HOME)/include"
+				AdditionalIncludeDirectories="$(SOURCEBASE);$(SOURCEBASE)/src/compat;$(SOURCEBASE)/include;$(TAP_WINDOWS_HOME)/include;$(OPENSSL_HOME)/include;$(LZO_HOME)/include;$(PKCS11H_HOME)/include"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;$(CPPFLAGS)"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -118,7 +118,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="2"
 				EnableIntrinsicFunctions="true"
-				AdditionalIncludeDirectories="$(SOURCEBASE);$(SOURCEBASE)/src/compat;$(SOURCEBASE)/include;$(OPENSSL_HOME)/include;$(LZO_HOME)/include;$(PKCS11H_HOME)/include"
+				AdditionalIncludeDirectories="$(SOURCEBASE);$(SOURCEBASE)/src/compat;$(SOURCEBASE)/include;$(TAP_WINDOWS_HOME)/include;$(OPENSSL_HOME)/include;$(LZO_HOME)/include;$(PKCS11H_HOME)/include"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;$(CPPFLAGS)"
 				RuntimeLibrary="2"
 				EnableFunctionLevelLinking="true"