diff options
Diffstat (limited to 'MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c')
| -rw-r--r-- | MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c index 85dffe0643..7ff17b6637 100644 --- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c +++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Output.c @@ -1,7 +1,7 @@ /** @file
Transmit the IP4 packet.
-Copyright (c) 2005 - 2009, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2005 - 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
@@ -204,6 +204,10 @@ Ip4SysPacketSent ( @retval EFI_NO_MAPPING There is no interface to the destination.
@retval EFI_NOT_FOUND There is no route to the destination
@retval EFI_SUCCESS The packet is successfully transmitted.
+ @retval EFI_BAD_BUFFER_SIZE The length of the IPv4 header + option length +
+ total data length is greater than MTU (or greater
+ than the maximum packet size if Token.Packet.TxData.
+ OverrideData.DoNotFragment is TRUE.)
@retval Others Failed to transmit the packet.
**/
@@ -231,6 +235,7 @@ Ip4Output ( UINT32 Offset;
UINT32 Mtu;
UINT32 Num;
+ BOOLEAN RawData;
//
// Select an interface/source for system packet, application
@@ -252,11 +257,18 @@ Ip4Output ( //
// Before IPsec process, prepared the IP head.
+ // If Ip4Output is transmitting RawData, don't update IPv4 header.
//
- HeadLen = sizeof (IP4_HEAD) + ((OptLen + 3) & (~0x03));
- Head->HeadLen = (UINT8) (HeadLen >> 2);
- Head->Id = mIp4Id++;
- Head->Ver = 4;
+ HeadLen = sizeof (IP4_HEAD) + ((OptLen + 3) & (~0x03));
+
+ if ((IpInstance != NULL) && IpInstance->ConfigData.RawData) {
+ RawData = TRUE;
+ } else {
+ Head->HeadLen = (UINT8) (HeadLen >> 2);
+ Head->Id = mIp4Id++;
+ Head->Ver = 4;
+ RawData = FALSE;
+ }
//
// Call IPsec process.
@@ -324,6 +336,13 @@ Ip4Output ( if (Packet->TotalSize + HeadLen > Mtu) {
//
+ // Fragmentation is diabled for RawData mode.
+ //
+ if (RawData) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ //
// Packet is fragmented from the tail to the head, that is, the
// first frame sent is the last fragment of the packet. The first
// fragment is NOT sent in this loop. First compute how many
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