[efi] Add TLS authentication header and GUID definitions

Add the TlsAuthentication.h header from EDK2's NetworkPkg, along with
a GUID definition for EFI_TLS_CA_CERTIFICATE_GUID.

It is unclear whether or not the TlsCaCertificate variable is intended
to be a UEFI standard.  Its presence in NetworkPkg (rather than
MdePkg) suggests not, but the choice of EFI_TLS_CA_CERTIFICATE_GUID
(rather than e.g. EDKII_TLS_CA_CERTIFICATE_GUID) suggests that it is
intended to be included in future versions of the standard.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/ipxe/efi/Guid/TlsAuthentication.h

@@ -0,0 +1,25 @@
+/** @file
+  This file defines TlsCaCertificate variable.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __TLS_AUTHENTICATION_H__
+#define __TLS_AUTHENTICATION_H__
+
+FILE_LICENCE ( BSD2_PATENT );
+
+// Private variable for CA Certificate configuration
+//
+#define EFI_TLS_CA_CERTIFICATE_GUID \
+  { \
+    0xfd2340D0, 0x3dab, 0x4349, { 0xa6, 0xc7, 0x3b, 0x4f, 0x12, 0xb4, 0x8e, 0xae } \
+  }
+
+#define EFI_TLS_CA_CERTIFICATE_VARIABLE  L"TlsCaCertificate"
+
+extern EFI_GUID  gEfiTlsCaCertificateGuid;
+
+#endif

src/include/ipxe/efi/efi.h

@@ -249,6 +249,7 @@ extern EFI_GUID efi_cert_x509_guid;
 extern EFI_GUID efi_file_info_id;
 extern EFI_GUID efi_file_system_info_id;
 extern EFI_GUID efi_global_variable;
+extern EFI_GUID efi_tls_ca_certificate_guid;
 
 extern EFI_HANDLE efi_image_handle;
 extern EFI_LOADED_IMAGE_PROTOCOL *efi_loaded_image;

src/include/ipxe/efi/import.pl

@@ -118,7 +118,8 @@ pod2usage ( 1 ) unless @ARGV == 1;
 my $edktop = shift;
 
 # Identify edk import directories
-my $edkdirs = [ "MdePkg/Include", "MdeModulePkg/Include" ];
+my $edkdirs = [ "MdePkg/Include", "MdeModulePkg/Include",
+		"NetworkPkg/Include" ];
 foreach my $edkdir ( @$edkdirs ) {
   die "Directory \"$edktop\" does not appear to contain the EFI EDK2 "
       ."(missing \"$edkdir\")\n" unless -d catdir ( $edktop, $edkdir );