/** @file\r
IP4 input process.\r
\r
-Copyright (c) 2005 - 2007, Intel Corporation.<BR>\r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>\r
+(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
+\r
+This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
NetbufFree (Fragment);\r
}\r
\r
- gBS->FreePool (Assemble);\r
+ FreePool (Assemble);\r
}\r
\r
\r
\r
**/\r
VOID\r
+EFIAPI\r
Ip4OnFreeFragments (\r
IN VOID *Arg\r
)\r
NET_BUF *NewPacket;\r
INTN Index;\r
\r
- IpHead = Packet->Ip;\r
+ IpHead = Packet->Ip.Ip4;\r
This = IP4_GET_CLIP_INFO (Packet);\r
\r
ASSERT (IpHead != NULL);\r
\r
InsertHeadList (&Table->Bucket[Index], &Assemble->Link);\r
}\r
+ //\r
+ // Assemble shouldn't be NULL here\r
+ //\r
+ ASSERT (Assemble != NULL);\r
\r
//\r
// Find the point to insert the packet: before the first\r
// check whether THIS.Start < PREV.End for overlap. If two fragments\r
// overlaps, trim the overlapped part off THIS fragment.\r
//\r
- if ((Prev = Cur->ForwardLink) != Head) {\r
+ if ((Prev = Cur->BackLink) != Head) {\r
Fragment = NET_LIST_USER_STRUCT (Prev, NET_BUF, List);\r
Node = IP4_GET_CLIP_INFO (Fragment);\r
\r
return NULL;\r
}\r
\r
- NewPacket->Ip = Assemble->Head;\r
- CopyMem (IP4_GET_CLIP_INFO (NewPacket), Assemble->Info, sizeof (*IP4_GET_CLIP_INFO (NewPacket)));\r
+ NewPacket->Ip.Ip4 = Assemble->Head;\r
+\r
+ ASSERT (Assemble->Info != NULL);\r
+\r
+ CopyMem (\r
+ IP4_GET_CLIP_INFO (NewPacket),\r
+ Assemble->Info,\r
+ sizeof (*IP4_GET_CLIP_INFO (NewPacket))\r
+ );\r
+\r
return NewPacket;\r
}\r
\r
return NULL;\r
}\r
\r
-\r
/**\r
- The IP4 input routine. It is called by the IP4_INTERFACE when a\r
- IP4 fragment is received from MNP.\r
+ The callback function for the net buffer which wraps the packet processed by \r
+ IPsec. It releases the wrap packet and also signals IPsec to free the resources. \r
\r
- @param[in] Ip4Instance The IP4 child that request the receive, most like\r
- it is NULL.\r
- @param[in] Packet The IP4 packet received.\r
- @param[in] IoStatus The return status of receive request.\r
- @param[in] Flag The link layer flag for the packet received, such\r
- as multicast.\r
- @param[in] Context The IP4 service instance that own the MNP.\r
+ @param[in] Arg The wrap context\r
\r
**/\r
VOID\r
-Ip4AccpetFrame (\r
- IN IP4_PROTOCOL *Ip4Instance,\r
- IN NET_BUF *Packet,\r
- IN EFI_STATUS IoStatus,\r
- IN UINT32 Flag,\r
- IN VOID *Context\r
+EFIAPI\r
+Ip4IpSecFree (\r
+ IN VOID *Arg\r
)\r
{\r
- IP4_SERVICE *IpSb;\r
- IP4_CLIP_INFO *Info;\r
- IP4_HEAD *Head;\r
- UINT32 HeadLen;\r
- UINT32 OptionLen;\r
- UINT32 TotalLen;\r
- UINT16 Checksum;\r
+ IP4_IPSEC_WRAP *Wrap;\r
\r
- IpSb = (IP4_SERVICE *) Context;\r
+ Wrap = (IP4_IPSEC_WRAP *) Arg;\r
\r
- if (EFI_ERROR (IoStatus) || (IpSb->State == IP4_SERVICE_DESTORY)) {\r
- goto DROP;\r
+ if (Wrap->IpSecRecycleSignal != NULL) {\r
+ gBS->SignalEvent (Wrap->IpSecRecycleSignal);\r
+ }\r
+\r
+ NetbufFree (Wrap->Packet);\r
+\r
+ FreePool (Wrap);\r
+\r
+ return;\r
+}\r
+\r
+/**\r
+ The work function to locate IPsec protocol to process the inbound or \r
+ outbound IP packets. The process routine handls the packet with following\r
+ actions: bypass the packet, discard the packet, or protect the packet. \r
+\r
+ @param[in] IpSb The IP4 service instance.\r
+ @param[in, out] Head The The caller supplied IP4 header.\r
+ @param[in, out] Netbuf The IP4 packet to be processed by IPsec.\r
+ @param[in, out] Options The caller supplied options.\r
+ @param[in, out] OptionsLen The length of the option.\r
+ @param[in] Direction The directionality in an SPD entry, \r
+ EfiIPsecInBound or EfiIPsecOutBound.\r
+ @param[in] Context The token's wrap.\r
+\r
+ @retval EFI_SUCCESS The IPsec protocol is not available or disabled.\r
+ @retval EFI_SUCCESS The packet was bypassed and all buffers remain the same.\r
+ @retval EFI_SUCCESS The packet was protected.\r
+ @retval EFI_ACCESS_DENIED The packet was discarded. \r
+ @retval EFI_OUT_OF_RESOURCES There is no suffcient resource to complete the operation.\r
+ @retval EFI_BUFFER_TOO_SMALL The number of non-empty block is bigger than the \r
+ number of input data blocks when build a fragment table.\r
+\r
+**/\r
+EFI_STATUS\r
+Ip4IpSecProcessPacket (\r
+ IN IP4_SERVICE *IpSb,\r
+ IN OUT IP4_HEAD **Head,\r
+ IN OUT NET_BUF **Netbuf,\r
+ IN OUT UINT8 **Options,\r
+ IN OUT UINT32 *OptionsLen,\r
+ IN EFI_IPSEC_TRAFFIC_DIR Direction,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ NET_FRAGMENT *FragmentTable;\r
+ NET_FRAGMENT *OriginalFragmentTable;\r
+ UINT32 FragmentCount;\r
+ UINT32 OriginalFragmentCount;\r
+ EFI_EVENT RecycleEvent;\r
+ NET_BUF *Packet;\r
+ IP4_TXTOKEN_WRAP *TxWrap;\r
+ IP4_IPSEC_WRAP *IpSecWrap;\r
+ EFI_STATUS Status;\r
+ IP4_HEAD ZeroHead;\r
+\r
+ Status = EFI_SUCCESS;\r
+\r
+ if (!mIpSec2Installed) {\r
+ goto ON_EXIT;\r
+ }\r
+ \r
+ Packet = *Netbuf;\r
+ RecycleEvent = NULL;\r
+ IpSecWrap = NULL;\r
+ FragmentTable = NULL;\r
+ TxWrap = (IP4_TXTOKEN_WRAP *) Context; \r
+ FragmentCount = Packet->BlockOpNum;\r
+\r
+ ZeroMem (&ZeroHead, sizeof (IP4_HEAD));\r
+ \r
+ if (mIpSec == NULL) {\r
+ gBS->LocateProtocol (&gEfiIpSec2ProtocolGuid, NULL, (VOID **) &mIpSec);\r
+ if (mIpSec == NULL) {\r
+ goto ON_EXIT;\r
+ }\r
}\r
\r
//\r
- // Check that the IP4 header is correctly formatted\r
+ // Check whether the IPsec enable variable is set.\r
//\r
- if (Packet->TotalSize < IP4_MIN_HEADLEN) {\r
- goto RESTART;\r
+ if (mIpSec->DisabledFlag) {\r
+ //\r
+ // If IPsec is disabled, restore the original MTU\r
+ // \r
+ IpSb->MaxPacketSize = IpSb->OldMaxPacketSize;\r
+ goto ON_EXIT;\r
+ } else {\r
+ //\r
+ // If IPsec is enabled, use the MTU which reduce the IPsec header length. \r
+ //\r
+ IpSb->MaxPacketSize = IpSb->OldMaxPacketSize - IP4_MAX_IPSEC_HEADLEN; \r
+ }\r
+\r
+ //\r
+ // Rebuild fragment table from netbuf to ease IPsec process.\r
+ //\r
+ FragmentTable = AllocateZeroPool (FragmentCount * sizeof (NET_FRAGMENT));\r
+\r
+ if (FragmentTable == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto ON_EXIT;\r
+ }\r
+ \r
+ Status = NetbufBuildExt (Packet, FragmentTable, &FragmentCount);\r
+ \r
+ //\r
+ // Record the original FragmentTable and count.\r
+ //\r
+ OriginalFragmentTable = FragmentTable;\r
+ OriginalFragmentCount = FragmentCount;\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ FreePool (FragmentTable);\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ //\r
+ // Convert host byte order to network byte order\r
+ //\r
+ Ip4NtohHead (*Head);\r
+ \r
+ Status = mIpSec->ProcessExt (\r
+ mIpSec,\r
+ IpSb->Controller,\r
+ IP_VERSION_4,\r
+ (VOID *) (*Head),\r
+ &(*Head)->Protocol,\r
+ (VOID **) Options,\r
+ OptionsLen,\r
+ (EFI_IPSEC_FRAGMENT_DATA **) (&FragmentTable),\r
+ &FragmentCount,\r
+ Direction,\r
+ &RecycleEvent\r
+ );\r
+ //\r
+ // Convert back to host byte order\r
+ //\r
+ Ip4NtohHead (*Head);\r
+ \r
+ if (EFI_ERROR (Status)) {\r
+ FreePool (OriginalFragmentTable);\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ if (OriginalFragmentTable == FragmentTable && OriginalFragmentCount == FragmentCount) {\r
+ //\r
+ // For ByPass Packet\r
+ //\r
+ FreePool (FragmentTable);\r
+ goto ON_EXIT;\r
+ } else {\r
+ //\r
+ // Free the FragmentTable which allocated before calling the IPsec.\r
+ //\r
+ FreePool (OriginalFragmentTable);\r
+ }\r
+\r
+ if (Direction == EfiIPsecOutBound && TxWrap != NULL) {\r
+ \r
+ TxWrap->IpSecRecycleSignal = RecycleEvent;\r
+ TxWrap->Packet = NetbufFromExt (\r
+ FragmentTable,\r
+ FragmentCount,\r
+ IP4_MAX_HEADLEN,\r
+ 0,\r
+ Ip4FreeTxToken,\r
+ TxWrap\r
+ );\r
+ if (TxWrap->Packet == NULL) {\r
+ //\r
+ // Recover the TxWrap->Packet, if meet a error, and the caller will free\r
+ // the TxWrap.\r
+ //\r
+ TxWrap->Packet = *Netbuf;\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ //\r
+ // Free orginal Netbuf.\r
+ //\r
+ NetIpSecNetbufFree (*Netbuf);\r
+ *Netbuf = TxWrap->Packet;\r
+ \r
+ } else {\r
+ \r
+ IpSecWrap = AllocateZeroPool (sizeof (IP4_IPSEC_WRAP));\r
+ \r
+ if (IpSecWrap == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ gBS->SignalEvent (RecycleEvent);\r
+ goto ON_EXIT;\r
+ }\r
+ \r
+ IpSecWrap->IpSecRecycleSignal = RecycleEvent;\r
+ IpSecWrap->Packet = Packet;\r
+ Packet = NetbufFromExt (\r
+ FragmentTable, \r
+ FragmentCount, \r
+ IP4_MAX_HEADLEN, \r
+ 0, \r
+ Ip4IpSecFree, \r
+ IpSecWrap\r
+ );\r
+ \r
+ if (Packet == NULL) {\r
+ Packet = IpSecWrap->Packet;\r
+ gBS->SignalEvent (RecycleEvent);\r
+ FreePool (IpSecWrap);\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ if (Direction == EfiIPsecInBound && 0 != CompareMem (*Head, &ZeroHead, sizeof (IP4_HEAD))) {\r
+ Ip4PrependHead (Packet, *Head, *Options, *OptionsLen);\r
+ Ip4NtohHead (Packet->Ip.Ip4);\r
+ NetbufTrim (Packet, ((*Head)->HeadLen << 2), TRUE);\r
+\r
+ CopyMem (\r
+ IP4_GET_CLIP_INFO (Packet),\r
+ IP4_GET_CLIP_INFO (IpSecWrap->Packet),\r
+ sizeof (IP4_CLIP_INFO)\r
+ );\r
+ }\r
+ *Netbuf = Packet;\r
}\r
\r
- Head = (IP4_HEAD *) NetbufGetByte (Packet, 0, NULL);\r
+ON_EXIT:\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Pre-process the IPv4 packet. First validates the IPv4 packet, and\r
+ then reassembles packet if it is necessary.\r
+ \r
+ @param[in] IpSb Pointer to IP4_SERVICE.\r
+ @param[in, out] Packet Pointer to the Packet to be processed.\r
+ @param[in] Head Pointer to the IP4_HEAD.\r
+ @param[in] Option Pointer to a buffer which contains the IPv4 option.\r
+ @param[in] OptionLen The length of Option in bytes.\r
+ @param[in] Flag The link layer flag for the packet received, such\r
+ as multicast.\r
+\r
+ @retval EFI_SEUCCESS The recieved packet is in well form.\r
+ @retval EFI_INVAILD_PARAMETER The recieved packet is malformed. \r
+\r
+**/\r
+EFI_STATUS\r
+Ip4PreProcessPacket (\r
+ IN IP4_SERVICE *IpSb,\r
+ IN OUT NET_BUF **Packet,\r
+ IN IP4_HEAD *Head,\r
+ IN UINT8 *Option,\r
+ IN UINT32 OptionLen, \r
+ IN UINT32 Flag\r
+ ) \r
+{\r
+ IP4_CLIP_INFO *Info;\r
+ UINT32 HeadLen;\r
+ UINT32 TotalLen;\r
+ UINT16 Checksum;\r
+\r
+ //\r
+ // Check if the IP4 header is correctly formatted.\r
+ //\r
+ if ((*Packet)->TotalSize < IP4_MIN_HEADLEN) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ \r
HeadLen = (Head->HeadLen << 2);\r
TotalLen = NTOHS (Head->TotalLen);\r
\r
//\r
// Mnp may deliver frame trailer sequence up, trim it off.\r
//\r
- if (TotalLen < Packet->TotalSize) {\r
- NetbufTrim (Packet, Packet->TotalSize - TotalLen, FALSE);\r
+ if (TotalLen < (*Packet)->TotalSize) {\r
+ NetbufTrim (*Packet, (*Packet)->TotalSize - TotalLen, FALSE);\r
}\r
\r
if ((Head->Ver != 4) || (HeadLen < IP4_MIN_HEADLEN) ||\r
- (TotalLen < HeadLen) || (TotalLen != Packet->TotalSize)) {\r
- goto RESTART;\r
+ (TotalLen < HeadLen) || (TotalLen != (*Packet)->TotalSize)) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
//\r
Checksum = (UINT16) (~NetblockChecksum ((UINT8 *) Head, HeadLen));\r
\r
if ((Head->Checksum != 0) && (Checksum != 0)) {\r
- goto RESTART;\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
//\r
// Convert the IP header to host byte order, then get the per packet info.\r
//\r
- Packet->Ip = Ip4NtohHead (Head);\r
+ (*Packet)->Ip.Ip4 = Ip4NtohHead (Head);\r
\r
- Info = IP4_GET_CLIP_INFO (Packet);\r
+ Info = IP4_GET_CLIP_INFO (*Packet);\r
Info->LinkFlag = Flag;\r
Info->CastType = Ip4GetHostCast (IpSb, Head->Dst, Head->Src);\r
Info->Start = (Head->Fragment & IP4_HEAD_OFFSET_MASK) << 3;\r
// The packet is destinated to us if the CastType is non-zero.\r
//\r
if ((Info->CastType == 0) || (Info->End > IP4_MAX_PACKET_SIZE)) {\r
- goto RESTART;\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
//\r
// Validate the options. Don't call the Ip4OptionIsValid if\r
// there is no option to save some CPU process.\r
//\r
- OptionLen = HeadLen - IP4_MIN_HEADLEN;\r
-\r
- if ((OptionLen > 0) && !Ip4OptionIsValid ((UINT8 *) (Head + 1), OptionLen, TRUE)) {\r
- goto RESTART;\r
+ \r
+ if ((OptionLen > 0) && !Ip4OptionIsValid (Option, OptionLen, TRUE)) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
//\r
- // Trim the head off, after this point, the packet is headless.\r
+ // Trim the head off, after this point, the packet is headless,\r
// and Packet->TotalLen == Info->Length.\r
//\r
- NetbufTrim (Packet, HeadLen, TRUE);\r
+ NetbufTrim (*Packet, HeadLen, TRUE);\r
\r
//\r
// Reassemble the packet if this is a fragment. The packet is a\r
// fragment if its head has MF (more fragment) set, or it starts\r
// at non-zero byte.\r
//\r
- if ((Head->Fragment & IP4_HEAD_MF_MASK) || (Info->Start != 0)) {\r
+ if (((Head->Fragment & IP4_HEAD_MF_MASK) != 0) || (Info->Start != 0)) {\r
//\r
// Drop the fragment if DF is set but it is fragmented. Gateway\r
// need to send a type 4 destination unreache ICMP message here.\r
//\r
- if (Head->Fragment & IP4_HEAD_DF_MASK) {\r
- goto RESTART;\r
+ if ((Head->Fragment & IP4_HEAD_DF_MASK) != 0) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
//\r
// The length of all but the last fragments is in the unit of 8 bytes.\r
//\r
- if ((Head->Fragment & IP4_HEAD_MF_MASK) && (Info->Length % 8 != 0)) {\r
- goto RESTART;\r
+ if (((Head->Fragment & IP4_HEAD_MF_MASK) != 0) && (Info->Length % 8 != 0)) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
- Packet = Ip4Reassemble (&IpSb->Assemble, Packet);\r
+ *Packet = Ip4Reassemble (&IpSb->Assemble, *Packet);\r
\r
//\r
// Packet assembly isn't complete, start receive more packet.\r
//\r
- if (Packet == NULL) {\r
- goto RESTART;\r
+ if (*Packet == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
}\r
+ \r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ The IP4 input routine. It is called by the IP4_INTERFACE when a\r
+ IP4 fragment is received from MNP.\r
+\r
+ @param[in] Ip4Instance The IP4 child that request the receive, most like\r
+ it is NULL.\r
+ @param[in] Packet The IP4 packet received.\r
+ @param[in] IoStatus The return status of receive request.\r
+ @param[in] Flag The link layer flag for the packet received, such\r
+ as multicast.\r
+ @param[in] Context The IP4 service instance that own the MNP.\r
+\r
+**/\r
+VOID\r
+Ip4AccpetFrame (\r
+ IN IP4_PROTOCOL *Ip4Instance,\r
+ IN NET_BUF *Packet,\r
+ IN EFI_STATUS IoStatus,\r
+ IN UINT32 Flag,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ IP4_SERVICE *IpSb;\r
+ IP4_HEAD *Head;\r
+ EFI_STATUS Status;\r
+ IP4_HEAD ZeroHead;\r
+ UINT8 *Option;\r
+ UINT32 OptionLen;\r
+ \r
+ IpSb = (IP4_SERVICE *) Context;\r
+ Option = NULL;\r
+\r
+ if (EFI_ERROR (IoStatus) || (IpSb->State == IP4_SERVICE_DESTROY)) {\r
+ goto DROP;\r
+ }\r
\r
+ Head = (IP4_HEAD *) NetbufGetByte (Packet, 0, NULL);\r
+ ASSERT (Head != NULL);\r
+ OptionLen = (Head->HeadLen << 2) - IP4_MIN_HEADLEN;\r
+ if (OptionLen > 0) {\r
+ Option = (UINT8 *) (Head + 1);\r
+ }\r
+\r
+ //\r
+ // Validate packet format and reassemble packet if it is necessary.\r
+ //\r
+ Status = Ip4PreProcessPacket (\r
+ IpSb, \r
+ &Packet, \r
+ Head, \r
+ Option,\r
+ OptionLen, \r
+ Flag\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto RESTART;\r
+ }\r
+\r
+ //\r
+ // After trim off, the packet is a esp/ah/udp/tcp/icmp6 net buffer,\r
+ // and no need consider any other ahead ext headers.\r
+ //\r
+ Status = Ip4IpSecProcessPacket (\r
+ IpSb,\r
+ &Head,\r
+ &Packet,\r
+ &Option,\r
+ &OptionLen,\r
+ EfiIPsecInBound,\r
+ NULL\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto RESTART;\r
+ }\r
+ \r
+ //\r
+ // If the packet is protected by tunnel mode, parse the inner Ip Packet.\r
//\r
+ ZeroMem (&ZeroHead, sizeof (IP4_HEAD));\r
+ if (0 == CompareMem (Head, &ZeroHead, sizeof (IP4_HEAD))) {\r
// Packet may have been changed. Head, HeadLen, TotalLen, and\r
// info must be reloaded bofore use. The ownership of the packet\r
// is transfered to the packet process logic.\r
//\r
- Head = Packet->Ip;\r
+ Head = (IP4_HEAD *) NetbufGetByte (Packet, 0, NULL);\r
+ ASSERT (Head != NULL);\r
+ Status = Ip4PreProcessPacket (\r
+ IpSb,\r
+ &Packet,\r
+ Head,\r
+ Option,\r
+ OptionLen,\r
+ Flag\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto RESTART;\r
+ }\r
+ }\r
+ \r
+ ASSERT (Packet != NULL);\r
+ Head = Packet->Ip.Ip4;\r
IP4_GET_CLIP_INFO (Packet)->Status = EFI_SUCCESS;\r
\r
switch (Head->Protocol) {\r
- case IP4_PROTO_ICMP:\r
+ case EFI_IP_PROTO_ICMP:\r
Ip4IcmpHandle (IpSb, Head, Packet);\r
break;\r
\r
break;\r
\r
default:\r
- Ip4Demultiplex (IpSb, Head, Packet);\r
+ Ip4Demultiplex (IpSb, Head, Packet, Option, OptionLen);\r
}\r
\r
Packet = NULL;\r
// Dispatch the DPCs queued by the NotifyFunction of the rx token's events\r
// which are signaled with received data.\r
//\r
- NetLibDispatchDpc ();\r
+ DispatchDpc ();\r
\r
RESTART:\r
Ip4ReceiveFrame (IpSb->DefaultInterface, NULL, Ip4AccpetFrame, IpSb);\r
//\r
// Use protocol from the IP header embedded in the ICMP error\r
// message to filter, instead of ICMP itself. ICMP handle will\r
- // can Ip4Demultiplex to deliver ICMP errors.\r
+ // call Ip4Demultiplex to deliver ICMP errors.\r
//\r
Proto = Head->Protocol;\r
\r
- if (Proto == IP4_PROTO_ICMP) {\r
+ if ((Proto == EFI_IP_PROTO_ICMP) && (!Config->AcceptAnyProtocol) && (Proto != Config->DefaultProtocol)) {\r
NetbufCopy (Packet, 0, sizeof (Icmp.Head), (UINT8 *) &Icmp.Head);\r
\r
if (mIcmpClass[Icmp.Head.Type].IcmpClass == ICMP_ERROR_MESSAGE) {\r
NetbufFree (Wrap->Packet);\r
\r
gBS->CloseEvent (Wrap->RxData.RecycleSignal);\r
- gBS->FreePool (Wrap);\r
+ FreePool (Wrap);\r
}\r
\r
\r
to the upper layer. Upper layer will signal the recycle event in\r
it when it is done with the packet.\r
\r
- @param[in] IpInstance The IP4 child to receive the packet\r
- @param[in] Packet The packet to deliver up.\r
+ @param[in] IpInstance The IP4 child to receive the packet.\r
+ @param[in] Packet The packet to deliver up.\r
\r
@retval Wrap if warp the packet succeed.\r
@retval NULL failed to wrap the packet .\r
IP4_RXDATA_WRAP *Wrap;\r
EFI_IP4_RECEIVE_DATA *RxData;\r
EFI_STATUS Status;\r
+ BOOLEAN RawData;\r
\r
Wrap = AllocatePool (IP4_RXDATA_WRAP_SIZE (Packet->BlockOpNum));\r
\r
Wrap->Packet = Packet;\r
RxData = &Wrap->RxData;\r
\r
- ZeroMem (&RxData->TimeStamp, sizeof (EFI_TIME));\r
+ ZeroMem (RxData, sizeof (EFI_IP4_RECEIVE_DATA));\r
\r
Status = gBS->CreateEvent (\r
EVT_NOTIFY_SIGNAL,\r
);\r
\r
if (EFI_ERROR (Status)) {\r
- gBS->FreePool (Wrap);\r
+ FreePool (Wrap);\r
return NULL;\r
}\r
\r
- ASSERT (Packet->Ip != NULL);\r
+ ASSERT (Packet->Ip.Ip4 != NULL);\r
+\r
+ ASSERT (IpInstance != NULL);\r
+ RawData = IpInstance->ConfigData.RawData;\r
\r
//\r
// The application expects a network byte order header.\r
//\r
- RxData->HeaderLength = (Packet->Ip->HeadLen << 2);\r
- RxData->Header = (EFI_IP4_HEADER *) Ip4NtohHead (Packet->Ip);\r
-\r
- RxData->OptionsLength = RxData->HeaderLength - IP4_MIN_HEADLEN;\r
- RxData->Options = NULL;\r
+ if (!RawData) {\r
+ RxData->HeaderLength = (Packet->Ip.Ip4->HeadLen << 2);\r
+ RxData->Header = (EFI_IP4_HEADER *) Ip4NtohHead (Packet->Ip.Ip4);\r
+ RxData->OptionsLength = RxData->HeaderLength - IP4_MIN_HEADLEN;\r
+ RxData->Options = NULL;\r
\r
- if (RxData->OptionsLength != 0) {\r
- RxData->Options = (VOID *) (RxData->Header + 1);\r
+ if (RxData->OptionsLength != 0) {\r
+ RxData->Options = (VOID *) (RxData->Header + 1);\r
+ }\r
}\r
\r
RxData->DataLength = Packet->TotalSize;\r
NET_BUF *Packet;\r
NET_BUF *Dup;\r
UINT8 *Head;\r
+ UINT32 HeadLen;\r
\r
//\r
// Deliver a packet if there are both a packet and a receive token.\r
//\r
// Create a duplicated packet if this packet is shared\r
//\r
- Dup = NetbufDuplicate (Packet, NULL, IP4_MAX_HEADLEN);\r
+ if (IpInstance->ConfigData.RawData) {\r
+ HeadLen = 0;\r
+ } else {\r
+ HeadLen = IP4_MAX_HEADLEN;\r
+ }\r
+\r
+ Dup = NetbufDuplicate (Packet, NULL, HeadLen);\r
\r
if (Dup == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
\r
- //\r
- // Copy the IP head over. The packet to deliver up is\r
- // headless. Trim the head off after copy. The IP head\r
- // may be not continuous before the data.\r
- //\r
- Head = NetbufAllocSpace (Dup, IP4_MAX_HEADLEN, NET_BUF_HEAD);\r
- Dup->Ip = (IP4_HEAD *) Head;\r
-\r
- CopyMem (Head, Packet->Ip, Packet->Ip->HeadLen << 2);\r
- NetbufTrim (Dup, IP4_MAX_HEADLEN, TRUE);\r
+ if (!IpInstance->ConfigData.RawData) {\r
+ //\r
+ // Copy the IP head over. The packet to deliver up is\r
+ // headless. Trim the head off after copy. The IP head\r
+ // may be not continuous before the data.\r
+ //\r
+ Head = NetbufAllocSpace (Dup, IP4_MAX_HEADLEN, NET_BUF_HEAD);\r
+ ASSERT (Head != NULL);\r
+ \r
+ Dup->Ip.Ip4 = (IP4_HEAD *) Head;\r
+\r
+ CopyMem (Head, Packet->Ip.Ip4, Packet->Ip.Ip4->HeadLen << 2);\r
+ NetbufTrim (Dup, IP4_MAX_HEADLEN, TRUE);\r
+ }\r
\r
Wrap = Ip4WrapRxData (IpInstance, Dup);\r
\r
Enqueue a received packet to all the IP children that share\r
the same interface.\r
\r
- @param[in] IpSb The IP4 service instance that receive the packet\r
- @param[in] Head The header of the received packet\r
- @param[in] Packet The data of the received packet\r
- @param[in] IpIf The interface to enqueue the packet to\r
+ @param[in] IpSb The IP4 service instance that receive the packet.\r
+ @param[in] Head The header of the received packet.\r
+ @param[in] Packet The data of the received packet.\r
+ @param[in] Option Point to the IP4 packet header options.\r
+ @param[in] OptionLen Length of the IP4 packet header options. \r
+ @param[in] IpIf The interface to enqueue the packet to.\r
\r
@return The number of the IP4 children that accepts the packet\r
\r
IN IP4_SERVICE *IpSb,\r
IN IP4_HEAD *Head,\r
IN NET_BUF *Packet,\r
+ IN UINT8 *Option,\r
+ IN UINT32 OptionLen,\r
IN IP4_INTERFACE *IpIf\r
)\r
{\r
IpInstance = NET_LIST_USER_STRUCT (Entry, IP4_PROTOCOL, AddrLink);\r
NET_CHECK_SIGNATURE (IpInstance, IP4_PROTOCOL_SIGNATURE);\r
\r
+ //\r
+ // In RawData mode, add IPv4 headers and options back to packet.\r
+ //\r
+ if ((IpInstance->ConfigData.RawData) && (Option != NULL) && (OptionLen != 0)){\r
+ Ip4PrependHead (Packet, Head, Option, OptionLen);\r
+ }\r
+\r
if (Ip4InstanceEnquePacket (IpInstance, Head, Packet) == EFI_SUCCESS) {\r
Enqueued++;\r
}\r
child wants to consume the packet because each IP child needs\r
its own copy of the packet to make changes.\r
\r
- @param[in] IpSb The IP4 service instance that received the packet\r
- @param[in] Head The header of the received packet\r
- @param[in] Packet The data of the received packet\r
+ @param[in] IpSb The IP4 service instance that received the packet.\r
+ @param[in] Head The header of the received packet.\r
+ @param[in] Packet The data of the received packet.\r
+ @param[in] Option Point to the IP4 packet header options.\r
+ @param[in] OptionLen Length of the IP4 packet header options.\r
\r
- @retval EFI_NOT_FOUND No IP child accepts the packet\r
+ @retval EFI_NOT_FOUND No IP child accepts the packet.\r
@retval EFI_SUCCESS The packet is enqueued or delivered to some IP\r
children.\r
\r
Ip4Demultiplex (\r
IN IP4_SERVICE *IpSb,\r
IN IP4_HEAD *Head,\r
- IN NET_BUF *Packet\r
+ IN NET_BUF *Packet,\r
+ IN UINT8 *Option,\r
+ IN UINT32 OptionLen\r
)\r
{\r
LIST_ENTRY *Entry;\r
IpIf = NET_LIST_USER_STRUCT (Entry, IP4_INTERFACE, Link);\r
\r
if (IpIf->Configured) {\r
- Enqueued += Ip4InterfaceEnquePacket (IpSb, Head, Packet, IpIf);\r
+ Enqueued += Ip4InterfaceEnquePacket (\r
+ IpSb,\r
+ Head,\r
+ Packet,\r
+ Option,\r
+ OptionLen,\r
+ IpIf\r
+ );\r
}\r
}\r
\r
projects / mirror_edk2.git / blobdiff