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NetworkPkg: Fix the issue cannot boot to UEFI Network after reset

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DHCP4 service allows only one of its children to be configured
in the active state,If the DHCP4 D.O.R.A started by IP4 auto
configuration and has not been completed, the Dhcp4 state machine
will not be in the right state for the PXE to start a new round D.O.R.A.
so we need to switch it's policy to static.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18104 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Zhang Lubo
2015-07-29 04:10:09 +00:00
committed by luobozhang
parent 15c9b25e5d
commit ac99793b73
6 changed files with 88 additions and 1 deletions
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46
NetworkPkg/UefiPxeBcDxe/PxeBcDhcp4.c
View File

@@ -1506,6 +1506,52 @@ PxeBcDhcp4Discover (
return Status;
}
/**
Switch the Ip4 policy to static.
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
@retval EFI_SUCCESS The policy is already configured to static.
@retval Others Other error as indicated..
**/
EFI_STATUS
PxeBcSetIp4Policy (
IN PXEBC_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;
EFI_IP4_CONFIG2_POLICY Policy;
UINTN DataSize;
Ip4Config2 = Private->Ip4Config2;
DataSize = sizeof (EFI_IP4_CONFIG2_POLICY);
Status = Ip4Config2->GetData (
Ip4Config2,
Ip4Config2DataTypePolicy,
&DataSize,
&Policy
);
if (EFI_ERROR (Status)) {
return Status;
}
if (Policy != Ip4Config2PolicyStatic) {
Policy = Ip4Config2PolicyStatic;
Status= Ip4Config2->SetData (
Ip4Config2,
Ip4Config2DataTypePolicy,
sizeof (EFI_IP4_CONFIG2_POLICY),
&Policy
);
if (EFI_ERROR (Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
Start the D.O.R.A DHCPv4 process to acquire the IPv4 address and other PXE boot information.