+++ /dev/null
-/** @file\r
- IKE Packet related operation.\r
-\r
- Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r
-\r
- SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include "IpSecDebug.h"\r
-#include "Ikev2/Utility.h"\r
-\r
-/**\r
- Allocate a buffer for the IKE_PACKET and intitalize its Header and payloadlist.\r
-\r
- @return The pointer of the IKE_PACKET.\r
-\r
-**/\r
-IKE_PACKET *\r
-IkePacketAlloc (\r
- VOID\r
- )\r
-{\r
- IKE_PACKET *IkePacket;\r
-\r
- IkePacket = (IKE_PACKET *) AllocateZeroPool (sizeof (IKE_PACKET));\r
- if (IkePacket == NULL) {\r
- return NULL;\r
- }\r
-\r
- IkePacket->RefCount = 1;\r
- InitializeListHead (&IkePacket->PayloadList);\r
-\r
- IkePacket->Header = (IKE_HEADER *) AllocateZeroPool (sizeof (IKE_HEADER));\r
- if (IkePacket->Header == NULL) {\r
- FreePool (IkePacket);\r
- return NULL;\r
- }\r
- return IkePacket;\r
-}\r
-\r
-/**\r
- Free the IkePacket by the specified IKE_PACKET pointer.\r
-\r
- @param[in] IkePacket The pointer of the IKE_PACKET to be freed.\r
-\r
-**/\r
-VOID\r
-IkePacketFree (\r
- IN IKE_PACKET *IkePacket\r
- )\r
-{\r
- LIST_ENTRY *Entry;\r
- IKE_PAYLOAD *IkePayload;\r
-\r
- if (IkePacket == NULL) {\r
- return;\r
- }\r
- //\r
- // Check if the Packet is referred by others.\r
- //\r
- if (--IkePacket->RefCount == 0) {\r
- //\r
- // Free IkePacket header\r
- //\r
- if (!IkePacket->IsHdrExt && IkePacket->Header != NULL) {\r
- FreePool (IkePacket->Header);\r
- }\r
- //\r
- // Free the PayloadsBuff\r
- //\r
- if (!IkePacket->IsPayloadsBufExt && IkePacket->PayloadsBuf != NULL) {\r
- FreePool (IkePacket->PayloadsBuf);\r
- }\r
- //\r
- // Iterate payloadlist and free all payloads\r
- //\r
- for (Entry = (IkePacket)->PayloadList.ForwardLink; Entry != &(IkePacket)->PayloadList;) {\r
- IkePayload = IKE_PAYLOAD_BY_PACKET (Entry);\r
- Entry = Entry->ForwardLink;\r
-\r
- IkePayloadFree (IkePayload);\r
- }\r
-\r
- FreePool (IkePacket);\r
- }\r
-}\r
-\r
-/**\r
- Callback funtion of NetbufFromExt()\r
-\r
- @param[in] Arg The data passed from the NetBufFromExe().\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-IkePacketNetbufFree (\r
- IN VOID *Arg\r
- )\r
-{\r
- //\r
- // TODO: add something if need.\r
- //\r
-}\r
-\r
-/**\r
- Copy the NetBuf into a IKE_PACKET sturcture.\r
-\r
- Create a IKE_PACKET and fill the received IKE header into the header of IKE_PACKET\r
- and copy the recieved packet without IKE HEADER to the PayloadBuf of IKE_PACKET.\r
-\r
- @param[in] Netbuf The pointer of the Netbuf which contains the whole received\r
- IKE packet.\r
-\r
- @return The pointer of the IKE_PACKET which contains the received packet.\r
-\r
-**/\r
-IKE_PACKET *\r
-IkePacketFromNetbuf (\r
- IN NET_BUF *Netbuf\r
- )\r
-{\r
- IKE_PACKET *IkePacket;\r
-\r
- IkePacket = NULL;\r
- if (Netbuf->TotalSize < sizeof (IKE_HEADER)) {\r
- goto Error;\r
- }\r
-\r
- IkePacket = IkePacketAlloc ();\r
- if (IkePacket == NULL) {\r
- return NULL;\r
- }\r
- //\r
- // Copy the IKE header from Netbuf to IkePacket->Hdr\r
- //\r
- NetbufCopy (Netbuf, 0, sizeof (IKE_HEADER), (UINT8 *) IkePacket->Header);\r
- //\r
- // Net order to host order\r
- //\r
- IkeHdrNetToHost (IkePacket->Header);\r
- if (IkePacket->Header->Length < Netbuf->TotalSize) {\r
- goto Error;\r
- }\r
-\r
- IkePacket->PayloadTotalSize = IkePacket->Header->Length - sizeof (IKE_HEADER);\r
- IkePacket->PayloadsBuf = (UINT8 *) AllocateZeroPool (IkePacket->PayloadTotalSize);\r
-\r
- if (IkePacket->PayloadsBuf == NULL) {\r
- goto Error;\r
- }\r
- //\r
- // Copy the IKE packet without the header into the IkePacket->PayloadsBuf.\r
- //\r
- NetbufCopy (Netbuf, sizeof (IKE_HEADER), (UINT32) IkePacket->PayloadTotalSize, IkePacket->PayloadsBuf);\r
- return IkePacket;\r
-\r
-Error:\r
- if (IkePacket != NULL) {\r
- IkePacketFree (IkePacket);\r
- }\r
-\r
- return NULL;\r
-}\r
-\r
-/**\r
- Convert the format from IKE_PACKET to NetBuf.\r
-\r
- @param[in] SessionCommon Pointer of related IKE_COMMON_SESSION\r
- @param[in] IkePacket Pointer of IKE_PACKET to be copy to NetBuf\r
- @param[in] IkeType The IKE type to pointer the packet is for which IKE\r
- phase. Now it supports IKE_SA_TYPE, IKE_CHILDSA_TYPE,\r
- IKE_INFO_TYPE.\r
-\r
- @return a pointer of Netbuff which contains the IKE_PACKE in network order.\r
-\r
-**/\r
-NET_BUF *\r
-IkeNetbufFromPacket (\r
- IN UINT8 *SessionCommon,\r
- IN IKE_PACKET *IkePacket,\r
- IN UINTN IkeType\r
- )\r
-{\r
- NET_BUF *Netbuf;\r
- NET_FRAGMENT *Fragments;\r
- UINTN Index;\r
- UINTN NumPayloads;\r
- LIST_ENTRY *PacketEntry;\r
- LIST_ENTRY *Entry;\r
- IKE_PAYLOAD *IkePayload;\r
- EFI_STATUS RetStatus;\r
-\r
- RetStatus = EFI_SUCCESS;\r
-\r
- if (!IkePacket->IsEncoded) {\r
- IkePacket->IsEncoded = TRUE;\r
- //\r
- // Convert Host order to Network order for IKE_PACKET header and payloads\r
- // Encryption payloads if needed\r
- //\r
- if (((IKEV2_SESSION_COMMON *) SessionCommon)->IkeVer == 2) {\r
- RetStatus = Ikev2EncodePacket ((IKEV2_SESSION_COMMON *) SessionCommon, IkePacket, IkeType);\r
- if (EFI_ERROR (RetStatus)) {\r
- return NULL;\r
- }\r
-\r
- } else {\r
- //\r
- // If IKEv1 support, check it here.\r
- //\r
- return NULL;\r
- }\r
- }\r
-\r
- NumPayloads = 0;\r
- //\r
- // Get the number of the payloads\r
- //\r
- NET_LIST_FOR_EACH (PacketEntry, &(IkePacket)->PayloadList) {\r
-\r
- NumPayloads++;\r
- }\r
- //\r
- // Allocate the Framgents according to the numbers of the IkePayload\r
- //\r
- Fragments = (NET_FRAGMENT *) AllocateZeroPool ((1 + NumPayloads) * sizeof (NET_FRAGMENT));\r
- if (Fragments == NULL) {\r
- return NULL;\r
- }\r
-\r
- Fragments[0].Bulk = (UINT8 *) IkePacket->Header;\r
- Fragments[0].Len = sizeof (IKE_HEADER);\r
- Index = 0;\r
-\r
- //\r
- // Set payloads to the Framgments.\r
- //\r
- NET_LIST_FOR_EACH (Entry, &(IkePacket)->PayloadList) {\r
- IkePayload = IKE_PAYLOAD_BY_PACKET (Entry);\r
-\r
- Fragments[Index + 1].Bulk = IkePayload->PayloadBuf;\r
- Fragments[Index + 1].Len = (UINT32) IkePayload->PayloadSize;\r
- Index++;\r
- }\r
-\r
- Netbuf = NetbufFromExt (\r
- Fragments,\r
- (UINT32) (NumPayloads + 1),\r
- 0,\r
- 0,\r
- IkePacketNetbufFree,\r
- NULL\r
- );\r
-\r
- FreePool (Fragments);\r
- return Netbuf;\r
-}\r
-\r
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