From b034613e257c8d2952a994211f1a8842c23ff71f Mon Sep 17 00:00:00 2001
From: Regina König
Date: Thu, 30 Jul 2020 03:52:45 +0200
Subject: Have some progress in search for file system protocol

---
 .../ProtocolInformation/ProtocolInformation.c      | 88 +++++++++++++---------
 1 file changed, 53 insertions(+), 35 deletions(-)

(limited to 'memtestEDK')

diff --git a/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c b/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
index c60fbbd..c256dde 100644
--- a/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
+++ b/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
@@ -15,13 +15,13 @@ UefiMain (
 
   EFI_STATUS efiStatus;
   EFI_BOOT_SERVICES* bs = SystemTable->BootServices;
-  //EFI_GUID sfspGuid = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
+  EFI_GUID sfspGuid = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
   EFI_HANDLE* handleBuffer = NULL;   
   UINTN handleCount = 0;
   UINTN handleIndex;
   EFI_GUID **ProtocolGuidArray;
   UINTN ArrayCount;
-  //UINTN ProtocolIndex;
+  UINTN ProtocolIndex;
   //EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfo;
   //UINTN OpenInfoIndex;
   //UINTN OpenInfoCount;
@@ -34,8 +34,10 @@ UefiMain (
     &handleBuffer
   );
 
-  Print(L"EFI_STATUS after LocateHandleBuffer: %r\n", efiStatus);
-  Print(L"Number of handles found: %d\n", handleCount); // Last time: 182
+  UINT32 sfspData1 = sfspGuid.Data1;
+
+  //Print(L"EFI_STATUS after LocateHandleBuffer: %r\n", efiStatus);
+  //Print(L"Number of handles found: %d\n", handleCount); // Last time: 182
 
   if (!EFI_ERROR (efiStatus)) {
     for (handleIndex = 0; handleIndex < handleCount; handleIndex++) {
@@ -48,46 +50,61 @@ UefiMain (
 		    &ArrayCount
 		  );
 
-      Print(L"EFI_STATUS after ProtocolsPerHandle: %r\n", efiStatus);
-      Print(L"Number of Protocols per Handle: %d\n", ArrayCount);
-
-/*		if (!EFI_ERROR (efiStatus)) {
-*/			/*for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
-				//
-				// Retrieve the protocol instance for each protocol
-				//
-
-				efiStatus = bs->OpenProtocol (
-				handleBuffer[handleIndex],
-				ProtocolGuidArray[ProtocolIndex],
-				NULL,
-				ImageHandle,
-				NULL,
-				EFI_OPEN_PROTOCOL_GET_PROTOCOL
-				);
-				//
-				// Retrieve the list of agents that have opened each protocol
-				//
-				efiStatus = bs->OpenProtocolInformation (
-				handleBuffer[handleIndex],
-				ProtocolGuidArray[ProtocolIndex],
-				&OpenInfo,
-				&OpenInfoCount
-				);*/
-			/*	if (!EFI_ERROR (efiStatus)) {
-					for (OpenInfoIndex=0;OpenInfoIndex<OpenInfoCount;OpenInfoIndex++) {
+      //Print(L"EFI_STATUS after ProtocolsPerHandle: %r\n", efiStatus);
+      //Print(L"Number of Protocols per Handle: %d\n", ArrayCount);
+
+  		if (!EFI_ERROR (efiStatus)) {
+			  for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
+
+          EFI_GUID *guid = ProtocolGuidArray[ProtocolIndex];
+          UINT32 Data1;
+          //UINT16 Data2;
+          //UINT32 Data3;
+          //UINT8 Data4[8];
+          Data1 = guid->Data1;
+
+          if (Data1 == sfspData1) {
+            Print(L"GUID: %x\n", Data1);
+            Print(L"handleIndex: %d\n", handleIndex);
+            Print(L"ProtocolIndex: %d\n", ProtocolIndex);
+          }
+		      //
+				  // Retrieve the protocol instance for each protocol
+				  //
+
+				  /*efiStatus = bs->OpenProtocol (
+				    handleBuffer[handleIndex],
+				    ProtocolGuidArray[ProtocolIndex],
+				    NULL,
+				    ImageHandle,
+				    NULL,
+				    EFI_OPEN_PROTOCOL_GET_PROTOCOL
+				  );*/
+
+				  //
+				  // Retrieve the list of agents that have opened each protocol
+				  //
+				  /*efiStatus = bs->OpenProtocolInformation (
+				    handleBuffer[handleIndex],
+				    ProtocolGuidArray[ProtocolIndex],
+				    &OpenInfo,
+				    &OpenInfoCount
+				  );
+*/		/*	if (!EFI_ERROR (efiStatus)) {
+*/				/*	for (OpenInfoIndex=0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {*/
 						//
 						// HandleBuffer[handleIndex] is the handle
 						// ProtocolGuidArray[ProtocolIndex] is the protocol GUID
 						// Instance is the protocol instance for the protocol
 						// OpenInfo[OpenInfoIndex] is an agent that has opened a protocol
 						//
-					}*/
+/*					}*/
 					/*if (OpenInfo != NULL) {
 						bs->FreePool(OpenInfo);
 					}*/
-			/*	}
- 	 		}*/
+				}
+ 	 		}
+
   		/*	if (ProtocolGuidArray != NULL) {
 				bs->FreePool(ProtocolGuidArray);
   			}*/
@@ -97,6 +114,7 @@ UefiMain (
 		}*/
     }
   }
+  Print(L"sfps: %x\n", sfspData1);
 
  /* efiStatus = bs->LocateHandleBuffer(ByProtocol, 
                                    &sfspGuid, 
-- 
cgit v1.2.3-55-g7522