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MdeModulePkg/Ip4Dxe: Add wrong/invalid subnet check

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v2:
* Separate out the return status fix.
* Replace IP4_MASK_MAX with IP4_MASK_NUM.
* Remove the ON_EXIT label.

This patch is used to add the wrong/invalid subnet check.

Cc: Santhapur Naveen <naveens@amiindia.co.in>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Jiaxin Wu
2016-11-11 12:47:01 +08:00
parent ad13d7d2d4
commit 818ba0ef81
2 changed files with 12 additions and 6 deletions
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10
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.c
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@@ -1255,6 +1255,13 @@ Ip4Config2SetMaunualAddress (
NewAddress = *((EFI_IP4_CONFIG2_MANUAL_ADDRESS *) Data);
StationAddress = EFI_NTOHL (NewAddress.Address);
SubnetMask = EFI_NTOHL (NewAddress.SubnetMask);
if (NetGetMaskLength (SubnetMask) == IP4_MASK_NUM) {
return EFI_INVALID_PARAMETER;
}
//
// Store the new data, and init the DataItem status to EFI_NOT_READY because
// we may have an asynchronous configuration process.
@@ -1273,9 +1280,6 @@ Ip4Config2SetMaunualAddress (
DataItem->DataSize = DataSize;
DataItem->Status = EFI_NOT_READY;
StationAddress = EFI_NTOHL (NewAddress.Address);
SubnetMask = EFI_NTOHL (NewAddress.SubnetMask);
IpSb->Reconfig = TRUE;
Status = Ip4Config2SetDefaultAddr (IpSb, StationAddress, SubnetMask);
if (EFI_ERROR (Status)) {