diff options
Diffstat (limited to 'MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c')
| -rw-r--r-- | MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c index 264598f49a..ae157c5e0a 100644 --- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c +++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c @@ -1,7 +1,7 @@ /** @file
Routines to process Rrq (download).
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 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
which accompanies this distribution. The full text of the license may be found at
@@ -486,6 +486,7 @@ Mtftp4RrqHandleOack ( MTFTP4_OPTION Reply;
EFI_STATUS Status;
INTN Expected;
+ EFI_UDP4_PROTOCOL *Udp4;
*Completed = FALSE;
@@ -548,13 +549,31 @@ Mtftp4RrqHandleOack ( //
Instance->McastIp = Reply.McastIp;
Instance->McastPort = Reply.McastPort;
- Instance->McastUdpPort = UdpIoCreateIo (
- Instance->Service->Controller,
- Instance->Service->Image,
- Mtftp4RrqConfigMcastPort,
- UDP_IO_UDP4_VERSION,
- Instance
- );
+ if (Instance->McastUdpPort == NULL) {
+ Instance->McastUdpPort = UdpIoCreateIo (
+ Instance->Service->Controller,
+ Instance->Service->Image,
+ Mtftp4RrqConfigMcastPort,
+ UDP_IO_UDP4_VERSION,
+ Instance
+ );
+ if (Instance->McastUdpPort != NULL) {
+ Status = gBS->OpenProtocol (
+ Instance->McastUdpPort->UdpHandle,
+ &gEfiUdp4ProtocolGuid,
+ (VOID **) &Udp4,
+ Instance->Service->Image,
+ Instance->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+ if (EFI_ERROR (Status)) {
+ UdpIoFreeIo (Instance->McastUdpPort);
+ Instance->McastUdpPort = NULL;
+ return EFI_DEVICE_ERROR;
+ }
+ }
+ }
+
if (Instance->McastUdpPort == NULL) {
return EFI_DEVICE_ERROR;
|