diff options
| author | lzeng14 <lzeng14@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-11 01:37:23 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-11 01:37:23 +0000 |
| commit | 240bc4ee8fdd73054b6dd58547ef416b9d9e2a7f (patch) | |
| tree | 2c019eb490e5a65ce082c76df814b5df6fe363a9 /MdeModulePkg | |
| parent | 4694dd1ba8ad0242a7cf7467568ce001619d3fde (diff) | |
| download | edk2-240bc4ee8fdd73054b6dd58547ef416b9d9e2a7f.zip edk2-240bc4ee8fdd73054b6dd58547ef416b9d9e2a7f.tar.gz edk2-240bc4ee8fdd73054b6dd58547ef416b9d9e2a7f.tar.bz2 | |
Make sure CapsuleImage size is equal or less than DataBlock Size. And when copy the Capsule data from DataBlock to the continuous memory, CapsuleImage size should be used instead of DataBlock.
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13304 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Universal/CapsulePei/Common/CapsuleCoalesce.c | 76 |
1 files changed, 28 insertions, 48 deletions
diff --git a/MdeModulePkg/Universal/CapsulePei/Common/CapsuleCoalesce.c b/MdeModulePkg/Universal/CapsulePei/Common/CapsuleCoalesce.c index a95b472..ec6b86f 100644 --- a/MdeModulePkg/Universal/CapsulePei/Common/CapsuleCoalesce.c +++ b/MdeModulePkg/Universal/CapsulePei/Common/CapsuleCoalesce.c @@ -300,13 +300,14 @@ ValidateCapsuleIntegrity ( }
CapsuleCount ++;
CapsuleSize = CapsuleHeader->CapsuleImageSize;
+ }
+
+ if (CapsuleSize >= Ptr->Length) {
+ CapsuleSize = CapsuleSize - Ptr->Length;
} else {
- if (CapsuleSize >= Ptr->Length) {
- CapsuleSize = CapsuleSize - Ptr->Length;
- } else {
- CapsuleSize = 0;
- }
+ CapsuleSize = 0;
}
+
//
// Move to next BLOCK descriptor
//
@@ -314,9 +315,9 @@ ValidateCapsuleIntegrity ( }
}
- if (CapsuleCount == 0) {
+ if ((CapsuleCount == 0) || (CapsuleSize != 0)) {
//
- // No any capsule is found in BlockList.
+ // No any capsule is found in BlockList or capsule data is corrupted.
//
return NULL;
}
@@ -1017,58 +1018,37 @@ CapsuleDataCoalesce ( //
IsCorrupted = FALSE;
CapsuleImageSize += SizeLeft;
- CopyMem ((VOID *) DestPtr, (VOID *) (UINTN) CurrentBlockDesc->Union.DataBlock, (UINTN) CurrentBlockDesc->Length);
- DEBUG ((EFI_D_INFO, "Capsule coalesce block no.0x%8X from 0x%8lX to 0x%8lX with size 0x%8X\n",CapsuleTimes,
- (UINTN)CurrentBlockDesc->Union.DataBlock, (UINTN)DestPtr, (UINTN)CurrentBlockDesc->Length));
//
// Cache the begin offset of this capsule
//
CapsuleOffset[CapsuleIndex++] = (UINT32) (UINTN) DestPtr - (UINT32)(UINTN)NewCapsuleBase - (UINT32)sizeof(EFI_CAPSULE_PEIM_PRIVATE_DATA);
+ }
+ }
+
+ if (CurrentBlockDesc->Length < SizeLeft) {
+ if (!IsCorrupted) {
+ CopyMem ((VOID *) DestPtr, (VOID *) (UINTN) (CurrentBlockDesc->Union.DataBlock), (UINTN)CurrentBlockDesc->Length);
+ DEBUG ((EFI_D_INFO, "Capsule coalesce block no.0x%8X from 0x%8lX to 0x%8lX with size 0x%8X\n",CapsuleTimes,
+ (UINTN)CurrentBlockDesc->Union.DataBlock, (UINTN)DestPtr, (UINTN)CurrentBlockDesc->Length));
DestPtr += CurrentBlockDesc->Length;
}
+ SizeLeft -= CurrentBlockDesc->Length;
+ } else {
//
- // If the current block length is greater than or equal to SizeLeft, this is the
- // start of the next capsule
+ //Here is the end of the current capsule image.
//
- if (CurrentBlockDesc->Length < SizeLeft) {
- SizeLeft -= CurrentBlockDesc->Length;
- } else {
- //
- // Start the next cycle
- //
- SizeLeft = 0;
- IsCorrupted = TRUE;
- CapsuleBeginFlag = TRUE;
+ if (!IsCorrupted) {
+ CopyMem ((VOID *) DestPtr, (VOID *)(UINTN)(CurrentBlockDesc->Union.DataBlock), (UINTN) SizeLeft);
+ DEBUG ((EFI_D_INFO, "Capsule coalesce block no.0x%8X from 0x%8lX to 0x%8lX with size 0x%8X\n",CapsuleTimes,
+ (UINTN)CurrentBlockDesc->Union.DataBlock, (UINTN)DestPtr, (UINTN) SizeLeft));
+ DestPtr += SizeLeft;
}
- } else {
//
- //Go on relocating the current capule image.
+ // Start the next cycle
//
- if (CurrentBlockDesc->Length < SizeLeft) {
- if (!IsCorrupted) {
- CopyMem ((VOID *) DestPtr, (VOID *) (UINTN) (CurrentBlockDesc->Union.DataBlock), (UINTN)CurrentBlockDesc->Length);
- DEBUG ((EFI_D_INFO, "Capsule coalesce block no.0x%8X from 0x%8lX to 0x%8lX with size 0x%8X\n",CapsuleTimes,
- (UINTN)CurrentBlockDesc->Union.DataBlock, (UINTN)DestPtr, (UINTN)CurrentBlockDesc->Length));
- DestPtr += CurrentBlockDesc->Length;
- }
- SizeLeft -= CurrentBlockDesc->Length;
- } else {
- //
- //Here is the end of the current capsule image.
- //
- if (!IsCorrupted) {
- CopyMem ((VOID *) DestPtr, (VOID *)(UINTN)(CurrentBlockDesc->Union.DataBlock), (UINTN)CurrentBlockDesc->Length);
- DEBUG ((EFI_D_INFO, "Capsule coalesce block no.0x%8X from 0x%8lX to 0x%8lX with size 0x%8X\n",CapsuleTimes,
- (UINTN)CurrentBlockDesc->Union.DataBlock, (UINTN)DestPtr, (UINTN)CurrentBlockDesc->Length));
- DestPtr += CurrentBlockDesc->Length;
- }
- //
- // Start the next cycle
- //
- SizeLeft = 0;
- IsCorrupted = TRUE;
- CapsuleBeginFlag = TRUE;
- }
+ SizeLeft = 0;
+ IsCorrupted = TRUE;
+ CapsuleBeginFlag = TRUE;
}
} else {
//
|