Per UEFI spec, FibreEx.WWN, FibreEx.Lun, SasEx.Address, SasEx.Lun
and iSCSI.Lun are all 8-byte array with byte #0 in the left.
It means "0102030405060708" should be converted to:
UINT8[8] = {01, 02, 03, 04, 05, 06, 07, 08}
or UINT64 = {0807060504030201}
Today's implementation wrongly uses the reversed order.
The patch fixes this issue by using StrHexToBytes().
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jie Lin <jie.lin@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
---
.../Library/UefiDevicePathLib/DevicePathFromText.c | 32 ++++++++++++++--------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
index c66b77ba6c..63cbc9449b 100644
--- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
+++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
@@ -1140,11 +1140,14 @@ DevPathFromTextFibreEx (
);
FibreEx->Reserved = 0;
- Strtoi64 (WWNStr, (UINT64 *) (&FibreEx->WWN));
- Strtoi64 (LunStr, (UINT64 *) (&FibreEx->Lun));
-
- *(UINT64 *) (&FibreEx->WWN) = SwapBytes64 (*(UINT64 *) (&FibreEx->WWN));
- *(UINT64 *) (&FibreEx->Lun) = SwapBytes64 (*(UINT64 *) (&FibreEx->Lun));
+ StrHexToBytes (
+ WWNStr, sizeof (FibreEx->WWN) * 2,
+ FibreEx->WWN, sizeof (FibreEx->WWN)
+ );
+ StrHexToBytes (
+ LunStr, sizeof (FibreEx->Lun) * 2,
+ FibreEx->Lun, sizeof (FibreEx->Lun)
+ );
return (EFI_DEVICE_PATH_PROTOCOL *) FibreEx;
}
@@ -1546,8 +1549,6 @@ DevPathFromTextSasEx (
CHAR16 *DriveBayStr;
UINT16 Info;
UINT16 Uint16;
- UINT64 SasAddress;
- UINT64 Lun;
SASEX_DEVICE_PATH *SasEx;
AddressStr = GetNextParamStr (&TextDeviceNode);
@@ -1563,10 +1564,14 @@ DevPathFromTextSasEx (
(UINT16) sizeof (SASEX_DEVICE_PATH)
);
- Strtoi64 (AddressStr, &SasAddress);
- Strtoi64 (LunStr, &Lun);
- WriteUnaligned64 ((UINT64 *) &SasEx->SasAddress, SwapBytes64 (SasAddress));
- WriteUnaligned64 ((UINT64 *) &SasEx->Lun, SwapBytes64 (Lun));
+ StrHexToBytes (
+ AddressStr, sizeof (SasEx->SasAddress) * 2,
+ SasEx->SasAddress, sizeof (SasEx->SasAddress)
+ );
+ StrHexToBytes (
+ LunStr, sizeof (SasEx->Lun) * 2,
+ SasEx->Lun, sizeof (SasEx->Lun)
+ );
SasEx->RelativeTargetPort = (UINT16) Strtoi (RTPStr);
if (StrCmp (SASSATAStr, L"NoTopology") == 0) {
@@ -2560,7 +2565,10 @@ DevPathFromTextiSCSI (
StrToAscii (NameStr, &AsciiStr);
ISCSIDevPath->TargetPortalGroupTag = (UINT16) Strtoi (PortalGroupStr);
- Strtoi64 (LunStr, &ISCSIDevPath->Lun);
+ StrHexToBytes (
+ LunStr, sizeof (ISCSIDevPath->Lun) * 2,
+ (UINT8 *)&ISCSIDevPath->Lun, sizeof (ISCSIDevPath->Lun)
+ );
Options = 0x0000;
if (StrCmp (HeaderDigestStr, L"CRC32C") == 0) {
--
2.16.1.windows.1
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Reviewed-by: Liming Gao <liming.gao@intel.com> > -----Original Message----- > From: Ni, Ruiyu > Sent: Friday, March 2, 2018 7:52 PM > To: edk2-devel@lists.01.org > Cc: Lin, Jie <jie.lin@intel.com>; Gao, Liming <liming.gao@intel.com>; Zhu, Yonghong <yonghong.zhu@intel.com> > Subject: [PATCH 2/2] MdePkg/DevicePathFromText: Fix byte orders when handling 8-byte array > > Per UEFI spec, FibreEx.WWN, FibreEx.Lun, SasEx.Address, SasEx.Lun > and iSCSI.Lun are all 8-byte array with byte #0 in the left. > It means "0102030405060708" should be converted to: > UINT8[8] = {01, 02, 03, 04, 05, 06, 07, 08} > or UINT64 = {0807060504030201} > > Today's implementation wrongly uses the reversed order. > The patch fixes this issue by using StrHexToBytes(). > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> > Cc: Jie Lin <jie.lin@intel.com> > Cc: Liming Gao <liming.gao@intel.com> > Cc: Yonghong Zhu <yonghong.zhu@intel.com> > --- > .../Library/UefiDevicePathLib/DevicePathFromText.c | 32 ++++++++++++++-------- > 1 file changed, 20 insertions(+), 12 deletions(-) > > diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c > index c66b77ba6c..63cbc9449b 100644 > --- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c > +++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c > @@ -1140,11 +1140,14 @@ DevPathFromTextFibreEx ( > ); > > FibreEx->Reserved = 0; > - Strtoi64 (WWNStr, (UINT64 *) (&FibreEx->WWN)); > - Strtoi64 (LunStr, (UINT64 *) (&FibreEx->Lun)); > - > - *(UINT64 *) (&FibreEx->WWN) = SwapBytes64 (*(UINT64 *) (&FibreEx->WWN)); > - *(UINT64 *) (&FibreEx->Lun) = SwapBytes64 (*(UINT64 *) (&FibreEx->Lun)); > + StrHexToBytes ( > + WWNStr, sizeof (FibreEx->WWN) * 2, > + FibreEx->WWN, sizeof (FibreEx->WWN) > + ); > + StrHexToBytes ( > + LunStr, sizeof (FibreEx->Lun) * 2, > + FibreEx->Lun, sizeof (FibreEx->Lun) > + ); > > return (EFI_DEVICE_PATH_PROTOCOL *) FibreEx; > } > @@ -1546,8 +1549,6 @@ DevPathFromTextSasEx ( > CHAR16 *DriveBayStr; > UINT16 Info; > UINT16 Uint16; > - UINT64 SasAddress; > - UINT64 Lun; > SASEX_DEVICE_PATH *SasEx; > > AddressStr = GetNextParamStr (&TextDeviceNode); > @@ -1563,10 +1564,14 @@ DevPathFromTextSasEx ( > (UINT16) sizeof (SASEX_DEVICE_PATH) > ); > > - Strtoi64 (AddressStr, &SasAddress); > - Strtoi64 (LunStr, &Lun); > - WriteUnaligned64 ((UINT64 *) &SasEx->SasAddress, SwapBytes64 (SasAddress)); > - WriteUnaligned64 ((UINT64 *) &SasEx->Lun, SwapBytes64 (Lun)); > + StrHexToBytes ( > + AddressStr, sizeof (SasEx->SasAddress) * 2, > + SasEx->SasAddress, sizeof (SasEx->SasAddress) > + ); > + StrHexToBytes ( > + LunStr, sizeof (SasEx->Lun) * 2, > + SasEx->Lun, sizeof (SasEx->Lun) > + ); > SasEx->RelativeTargetPort = (UINT16) Strtoi (RTPStr); > > if (StrCmp (SASSATAStr, L"NoTopology") == 0) { > @@ -2560,7 +2565,10 @@ DevPathFromTextiSCSI ( > StrToAscii (NameStr, &AsciiStr); > > ISCSIDevPath->TargetPortalGroupTag = (UINT16) Strtoi (PortalGroupStr); > - Strtoi64 (LunStr, &ISCSIDevPath->Lun); > + StrHexToBytes ( > + LunStr, sizeof (ISCSIDevPath->Lun) * 2, > + (UINT8 *)&ISCSIDevPath->Lun, sizeof (ISCSIDevPath->Lun) > + ); > > Options = 0x0000; > if (StrCmp (HeaderDigestStr, L"CRC32C") == 0) { > -- > 2.16.1.windows.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
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