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Add additional delay in DHCP6 InfoRequest interface to wait for link local address DAD to finish.

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Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: qianouyang <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13664 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
sfu5
2012-08-22 08:01:19 +00:00
parent 7fb60a98ca
commit cc65822475
8 changed files with 263 additions and 60 deletions
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102
NetworkPkg/Dhcp6Dxe/Dhcp6Io.c
View File

@@ -1,7 +1,7 @@
/** @file
Dhcp6 internal functions implementation.
Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -1626,6 +1626,106 @@ Dhcp6SendRenewRebindMsg (
return Dhcp6EnqueueRetry (Instance, Packet, Elapsed, NULL);
}
/**
Start the information request process.
@param[in] Instance The pointer to the Dhcp6 instance.
@param[in] SendClientId If TRUE, the client identifier option will be included in
information request message. Otherwise, the client identifier
option will not be included.
@param[in] OptionRequest The pointer to the option request option.
@param[in] OptionCount The number options in the OptionList.
@param[in] OptionList The array pointers to the appended options.
@param[in] Retransmission The pointer to the retransmission control.
@param[in] TimeoutEvent The event of timeout.
@param[in] ReplyCallback The callback function when the reply was received.
@param[in] CallbackContext The pointer to the parameter passed to the callback.
@retval EFI_SUCCESS Start the info-request process successfully.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_NO_MAPPING No source address is available for use.
@retval Others Failed to start the info-request process.
**/
EFI_STATUS
Dhcp6StartInfoRequest (
IN DHCP6_INSTANCE *Instance,
IN BOOLEAN SendClientId,
IN EFI_DHCP6_PACKET_OPTION *OptionRequest,
IN UINT32 OptionCount,
IN EFI_DHCP6_PACKET_OPTION *OptionList[] OPTIONAL,
IN EFI_DHCP6_RETRANSMISSION *Retransmission,
IN EFI_EVENT TimeoutEvent OPTIONAL,
IN EFI_DHCP6_INFO_CALLBACK ReplyCallback,
IN VOID *CallbackContext OPTIONAL
)
{
EFI_STATUS Status;
DHCP6_INF_CB *InfCb;
DHCP6_SERVICE *Service;
EFI_TPL OldTpl;
Service = Instance->Service;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Instance->UdpSts = EFI_ALREADY_STARTED;
//
// Create and initialize the control block for the info-request.
//
InfCb = AllocateZeroPool (sizeof(DHCP6_INF_CB));
if (InfCb == NULL) {
gBS->RestoreTPL (OldTpl);
return EFI_OUT_OF_RESOURCES;
}
InfCb->ReplyCallback = ReplyCallback;
InfCb->CallbackContext = CallbackContext;
InfCb->TimeoutEvent = TimeoutEvent;
InsertTailList (&Instance->InfList, &InfCb->Link);
//
// Send the info-request message to start exchange process.
//
Status = Dhcp6SendInfoRequestMsg (
Instance,
InfCb,
SendClientId,
OptionRequest,
OptionCount,
OptionList,
Retransmission
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Register receive callback for the stateless exchange process.
//
Status = UdpIoRecvDatagram(
Service->UdpIo,
Dhcp6ReceivePacket,
Service,
0
);
if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
goto ON_ERROR;
}
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
ON_ERROR:
gBS->RestoreTPL (OldTpl);
RemoveEntryList (&InfCb->Link);
FreePool (InfCb);
return Status;
}
/**
Create the information request message and send it.