diff options
| author | sfu5 <sfu5@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-22 08:01:19 +0000 |
|---|---|---|
| committer | sfu5 <sfu5@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-22 08:01:19 +0000 |
| commit | cc65822475b10d8eb9c01dab251ef1f647efe180 (patch) | |
| tree | 5fd077a770ed9058a83141626820d7e0dd286d51 /NetworkPkg/Dhcp6Dxe/Dhcp6Io.c | |
| parent | 7fb60a98ca3a78cf318703b99e64add9f4262fa5 (diff) | |
| download | edk2-cc65822475b10d8eb9c01dab251ef1f647efe180.tar.gz edk2-cc65822475b10d8eb9c01dab251ef1f647efe180.tar.bz2 edk2-cc65822475b10d8eb9c01dab251ef1f647efe180.zip | |
Add additional delay in DHCP6 InfoRequest interface to wait for link local address DAD to finish.
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
Diffstat (limited to 'NetworkPkg/Dhcp6Dxe/Dhcp6Io.c')
| -rw-r--r-- | NetworkPkg/Dhcp6Dxe/Dhcp6Io.c | 102 |
1 files changed, 101 insertions, 1 deletions
diff --git a/NetworkPkg/Dhcp6Dxe/Dhcp6Io.c b/NetworkPkg/Dhcp6Dxe/Dhcp6Io.c index 7320642edd..656fd83908 100644 --- a/NetworkPkg/Dhcp6Dxe/Dhcp6Io.c +++ b/NetworkPkg/Dhcp6Dxe/Dhcp6Io.c @@ -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.
|