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Fix a bug in IP4 driver that the broadcast/multicast mac address is overrided by the gateway’s mac address.

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

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14167 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
sfu5 2013-03-11 07:44:10 +00:00
parent a9b4ff8d01
commit 44a97ac647
1 changed files with 31 additions and 37 deletions
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12
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c
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@ -1,7 +1,7 @@
/** @file /** @file
Transmit the IP4 packet. Transmit the IP4 packet.
Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR> Copyright (c) 2005 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -287,12 +287,7 @@ Ip4Output (
return Status; return Status;
} }
//
// Route the packet unless overrided, that is, GateWay isn't zero.
//
if (GateWay == IP4_ALLZERO_ADDRESS) {
Dest = Head->Dst; Dest = Head->Dst;
if (IP4_IS_BROADCAST (Ip4GetNetCast (Dest, IpIf)) || (Dest == IP4_ALLONE_ADDRESS)) { if (IP4_IS_BROADCAST (Ip4GetNetCast (Dest, IpIf)) || (Dest == IP4_ALLONE_ADDRESS)) {
// //
// Set the gateway to local broadcast if the Dest is // Set the gateway to local broadcast if the Dest is
@ -309,9 +304,9 @@ Ip4Output (
// //
GateWay = Head->Dst; GateWay = Head->Dst;
} else { } else if (GateWay == IP4_ALLZERO_ADDRESS) {
// //
// Consult the route table to route the packet // Route the packet unless overrided, that is, GateWay isn't zero.
// //
if (IpInstance == NULL) { if (IpInstance == NULL) {
CacheEntry = Ip4Route (IpSb->DefaultRouteTable, Head->Dst, Head->Src); CacheEntry = Ip4Route (IpSb->DefaultRouteTable, Head->Dst, Head->Src);
@ -326,7 +321,6 @@ Ip4Output (
GateWay = CacheEntry->NextHop; GateWay = CacheEntry->NextHop;
Ip4FreeRouteCacheEntry (CacheEntry); Ip4FreeRouteCacheEntry (CacheEntry);
} }
}
// //
// OK, selected the source and route, fragment the packet then send // OK, selected the source and route, fragment the packet then send