From: Ruiyu Ni <ruiyu.ni@intel.com>
To: edk2-devel@lists.01.org
Cc: Jie Lin <jie.lin@intel.com>, Liming Gao <liming.gao@intel.com>,
Yonghong Zhu <yonghong.zhu@intel.com>
Subject: [PATCH v2] MdePkg/DevicePathFromText: Fix byte orders of iSCSI.Lun
Date: Sat, 3 Mar 2018 13:10:39 +0800 [thread overview]
Message-ID: <20180303051039.158176-1-ruiyu.ni@intel.com> (raw)
Per UEFI spec, iSCSI.Lun is a 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.
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>
---
MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
index c66b77ba6c..35a73e83ff 100644
--- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
+++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
@@ -2542,6 +2542,7 @@ DevPathFromTextiSCSI (
CHAR16 *ProtocolStr;
CHAR8 *AsciiStr;
ISCSI_DEVICE_PATH_WITH_NAME *ISCSIDevPath;
+ UINT64 Lun;
NameStr = GetNextParamStr (&TextDeviceNode);
PortalGroupStr = GetNextParamStr (&TextDeviceNode);
@@ -2560,7 +2561,8 @@ DevPathFromTextiSCSI (
StrToAscii (NameStr, &AsciiStr);
ISCSIDevPath->TargetPortalGroupTag = (UINT16) Strtoi (PortalGroupStr);
- Strtoi64 (LunStr, &ISCSIDevPath->Lun);
+ Strtoi64 (LunStr, &Lun);
+ WriteUnaligned64 ((UINT64 *) &ISCSIDevPath->Lun, SwapBytes64 (Lun));
Options = 0x0000;
if (StrCmp (HeaderDigestStr, L"CRC32C") == 0) {
--
2.16.1.windows.1
next reply other threads:[~2018-03-03 5:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-03 5:10 Ruiyu Ni [this message]
2018-03-03 5:20 ` [PATCH v2] MdePkg/DevicePathFromText: Fix byte orders of iSCSI.Lun Gao, Liming
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