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Diffstat (limited to 'NetworkPkg/IpSecDxe/IpSecImpl.h')
| -rw-r--r-- | NetworkPkg/IpSecDxe/IpSecImpl.h | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/NetworkPkg/IpSecDxe/IpSecImpl.h b/NetworkPkg/IpSecDxe/IpSecImpl.h new file mode 100644 index 000000000..644c65808 --- /dev/null +++ b/NetworkPkg/IpSecDxe/IpSecImpl.h @@ -0,0 +1,313 @@ +/** @file
+ The definitions related to IPsec protocol implementation.
+
+ Copyright (c) 2009 - 2010, 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
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _IP_SEC_IMPL_H_
+#define _IP_SEC_IMPL_H_
+
+#include <Uefi.h>
+#include <Library/UefiLib.h>
+#include <Library/NetLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Protocol/IpSec.h>
+#include <Protocol/IpSecConfig.h>
+#include <Protocol/Dpc.h>
+#include <Protocol/ComponentName.h>
+#include <Protocol/ComponentName2.h>
+
+typedef struct _IPSEC_PRIVATE_DATA IPSEC_PRIVATE_DATA;
+typedef struct _IPSEC_SPD_ENTRY IPSEC_SPD_ENTRY;
+typedef struct _IPSEC_PAD_ENTRY IPSEC_PAD_ENTRY;
+typedef struct _IPSEC_SPD_DATA IPSEC_SPD_DATA;
+
+#define IPSEC_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('I', 'P', 'S', 'E')
+
+#define IPSEC_PRIVATE_DATA_FROM_IPSEC(a) CR (a, IPSEC_PRIVATE_DATA, IpSec, IPSEC_PRIVATE_DATA_SIGNATURE)
+#define IPSEC_PRIVATE_DATA_FROM_UDP4LIST(a) CR (a, IPSEC_PRIVATE_DATA, Udp4List, IPSEC_PRIVATE_DATA_SIGNATURE)
+#define IPSEC_PRIVATE_DATA_FROM_UDP6LIST(a) CR (a, IPSEC_PRIVATE_DATA, Udp6List, IPSEC_PRIVATE_DATA_SIGNATURE)
+#define IPSEC_UDP_SERVICE_FROM_LIST(a) BASE_CR (a, IKE_UDP_SERVICE, List)
+#define IPSEC_SPD_ENTRY_FROM_LIST(a) BASE_CR (a, IPSEC_SPD_ENTRY, List)
+#define IPSEC_SAD_ENTRY_FROM_LIST(a) BASE_CR (a, IPSEC_SAD_ENTRY, List)
+#define IPSEC_PAD_ENTRY_FROM_LIST(a) BASE_CR (a, IPSEC_PAD_ENTRY, List)
+#define IPSEC_SAD_ENTRY_FROM_SPD(a) BASE_CR (a, IPSEC_SAD_ENTRY, BySpd)
+
+#define IPSEC_STATUS_DISABLED 0
+#define IPSEC_STATUS_ENABLED 1
+#define IPSEC_ESP_PROTOCOL 50
+#define IPSEC_AH_PROTOCOL 51
+#define IPSEC_DEFAULT_VARIABLE_SIZE 0x100
+
+//
+// Internal Structure Definition
+//
+#pragma pack(1)
+typedef struct _EFI_AH_HEADER {
+ UINT8 NextHeader;
+ UINT8 PayloadLen;
+ UINT16 Reserved;
+ UINT32 Spi;
+ UINT32 SequenceNumber;
+} EFI_AH_HEADER;
+
+typedef struct _EFI_ESP_HEADER {
+ UINT32 Spi;
+ UINT32 SequenceNumber;
+} EFI_ESP_HEADER;
+
+typedef struct _EFI_ESP_TAIL {
+ UINT8 PaddingLength;
+ UINT8 NextHeader;
+} EFI_ESP_TAIL;
+#pragma pack()
+
+struct _IPSEC_SPD_DATA {
+ CHAR16 Name[100];
+ UINT32 PackageFlag;
+ EFI_IPSEC_ACTION Action;
+ EFI_IPSEC_PROCESS_POLICY *ProcessingPolicy;
+ LIST_ENTRY Sas;
+};
+
+struct _IPSEC_SPD_ENTRY {
+ EFI_IPSEC_SPD_SELECTOR *Selector;
+ IPSEC_SPD_DATA *Data;
+ LIST_ENTRY List;
+};
+
+typedef struct _IPSEC_SAD_DATA {
+ EFI_IPSEC_MODE Mode;
+ UINT64 SequenceNumber;
+ UINT8 AntiReplayWindowSize;
+ UINT64 AntiReplayBitmap[4]; // bitmap for received packet
+ EFI_IPSEC_ALGO_INFO AlgoInfo;
+ EFI_IPSEC_SA_LIFETIME SaLifetime;
+ UINT32 PathMTU;
+ IPSEC_SPD_ENTRY *SpdEntry;
+ BOOLEAN ESNEnabled; // Extended (64-bit) SN enabled
+ BOOLEAN ManualSet;
+} IPSEC_SAD_DATA;
+
+typedef struct _IPSEC_SAD_ENTRY {
+ EFI_IPSEC_SA_ID *Id;
+ IPSEC_SAD_DATA *Data;
+ LIST_ENTRY List;
+ LIST_ENTRY BySpd; // Linked on IPSEC_SPD_DATA.Sas
+} IPSEC_SAD_ENTRY;
+
+struct _IPSEC_PAD_ENTRY {
+ EFI_IPSEC_PAD_ID *Id;
+ EFI_IPSEC_PAD_DATA *Data;
+ LIST_ENTRY List;
+};
+
+typedef struct _IPSEC_RECYCLE_CONTEXT {
+ EFI_IPSEC_FRAGMENT_DATA *FragmentTable;
+ UINT8 *PayloadBuffer;
+} IPSEC_RECYCLE_CONTEXT;
+
+struct _IPSEC_PRIVATE_DATA {
+ UINT32 Signature;
+ EFI_HANDLE Handle; // Virtual handle to install private prtocol
+ EFI_HANDLE ImageHandle;
+ EFI_IPSEC_PROTOCOL IpSec;
+ EFI_IPSEC_CONFIG_PROTOCOL IpSecConfig;
+ BOOLEAN SetBySelf;
+ LIST_ENTRY Udp4List;
+ UINTN Udp4Num;
+ LIST_ENTRY Udp6List;
+ UINTN Udp6Num;
+ LIST_ENTRY Ikev1SessionList;
+ LIST_ENTRY Ikev1EstablishedList;
+ LIST_ENTRY Ikev2SessionList;
+ LIST_ENTRY Ikev2EstablishedList;
+ BOOLEAN IsIPsecDisabling;
+};
+
+/**
+ This function processes the inbound traffic with IPsec.
+
+ It checks the received packet security property, trims the ESP/AH header, and then
+ returns without an IPsec protected IP Header and FragmentTable.
+
+ @param[in] IpVersion The version of IP.
+ @param[in, out] IpHead Points to IP header containing the ESP/AH header
+ to be trimed on input, and without ESP/AH header
+ on return.
+ @param[in] LastHead The Last Header in IP header on return.
+ @param[in] OptionsBuffer Pointer to the options buffer. It is optional.
+ @param[in] OptionsLength Length of the options buffer. It is optional.
+ @param[in, out] FragmentTable Pointer to a list of fragments in the form of IPsec
+ protected on input, and without IPsec protected
+ on return.
+ @param[in] FragmentCount Number of fragments.
+ @param[out] SpdEntry Pointer to contain the address of SPD entry on return.
+ @param[out] RecycleEvent Event for recycling of resources.
+
+ @retval EFI_SUCCESS The operation is successful.
+ @retval EFI_UNSUPPORTED If the IPSEC protocol is not supported.
+
+**/
+EFI_STATUS
+IpSecProtectInboundPacket (
+ IN UINT8 IpVersion,
+ IN OUT VOID *IpHead,
+ IN UINT8 *LastHead,
+ IN VOID *OptionsBuffer, OPTIONAL
+ IN UINT32 OptionsLength, OPTIONAL
+ IN OUT EFI_IPSEC_FRAGMENT_DATA **FragmentTable,
+ IN UINT32 *FragmentCount,
+ OUT IPSEC_SPD_ENTRY **SpdEntry,
+ OUT EFI_EVENT *RecycleEvent
+ );
+
+
+/**
+ This fucntion processes the output traffic with IPsec.
+
+ It protected the sending packet by encrypting it payload and inserting ESP/AH header
+ in the orginal IP header, then return the IpHeader and IPsec protected Fragmentable.
+
+ @param[in] IpVersion The version of IP.
+ @param[in, out] IpHead Point to IP header containing the orginal IP header
+ to be processed on input, and inserted ESP/AH header
+ on return.
+ @param[in] LastHead The Last Header in IP header.
+ @param[in] OptionsBuffer Pointer to the options buffer. It is optional.
+ @param[in] OptionsLength Length of the options buffer. It is optional.
+ @param[in, out] FragmentTable Pointer to a list of fragments to be protected by
+ IPsec on input, and with IPsec protected
+ on return.
+ @param[in] FragmentCount Number of fragments.
+ @param[in] SadEntry Related SAD entry.
+ @param[out] RecycleEvent Event for recycling of resources.
+
+ @retval EFI_SUCCESS The operation is successful.
+ @retval EFI_UNSUPPORTED If the IPSEC protocol is not supported.
+
+**/
+EFI_STATUS
+IpSecProtectOutboundPacket (
+ IN UINT8 IpVersion,
+ IN OUT VOID *IpHead,
+ IN UINT8 *LastHead,
+ IN VOID *OptionsBuffer, OPTIONAL
+ IN UINT32 OptionsLength, OPTIONAL
+ IN OUT EFI_IPSEC_FRAGMENT_DATA **FragmentTable,
+ IN UINT32 *FragmentCount,
+ IN IPSEC_SAD_ENTRY *SadEntry,
+ OUT EFI_EVENT *RecycleEvent
+ );
+
+/**
+ Check if the IP Address in the address range of AddressInfos specified.
+
+ @param[in] IpVersion The IP version.
+ @param[in] IpAddr Points to EFI_IP_ADDRESS to be check.
+ @param[in] AddressInfo A list of EFI_IP_ADDRESS_INFO that is used to check
+ the IP Address is matched.
+ @param[in] AddressCount The total numbers of the AddressInfo.
+
+ @retval TRUE If the Specified IP Address is in the range of the AddressInfos specified.
+ @retval FALSE If the Specified IP Address is not in the range of the AddressInfos specified.
+
+**/
+BOOLEAN
+IpSecMatchIpAddress (
+ IN UINT8 IpVersion,
+ IN EFI_IP_ADDRESS *IpAddr,
+ IN EFI_IP_ADDRESS_INFO *AddressInfo,
+ IN UINT32 AddressCount
+ );
+
+/**
+ Find a PAD entry according to remote IP address.
+
+ @param[in] IpVersion The version of IP.
+ @param[in] IpAddr Point to remote IP address.
+
+ @return The pointer of related PAD entry.
+
+**/
+IPSEC_PAD_ENTRY *
+IpSecLookupPadEntry (
+ IN UINT8 IpVersion,
+ IN EFI_IP_ADDRESS *IpAddr
+ );
+
+/**
+ Find the SAD through whole SAD list.
+
+ @param[in] Spi The SPI used to search the SAD entry.
+ @param[in] DestAddress The destination used to search the SAD entry.
+
+ @return The pointer to a certain SAD entry.
+
+**/
+IPSEC_SAD_ENTRY *
+IpSecLookupSadBySpi (
+ IN UINT32 Spi,
+ IN EFI_IP_ADDRESS *DestAddress
+ )
+;
+
+/**
+ Handles IPsec packet processing for inbound and outbound IP packets.
+
+ The EFI_IPSEC_PROCESS process routine handles each inbound or outbound packet.
+ The behavior is that it can perform one of the following actions:
+ bypass the packet, discard the packet, or protect the packet.
+
+ @param[in] This Pointer to the EFI_IPSEC_PROTOCOL instance.
+ @param[in] NicHandle Instance of the network interface.
+ @param[in] IpVersion IPV4 or IPV6.
+ @param[in, out] IpHead Pointer to the IP Header.
+ @param[in] LastHead The protocol of the next layer to be processed by IPsec.
+ @param[in] OptionsBuffer Pointer to the options buffer.
+ @param[in] OptionsLength Length of the options buffer.
+ @param[in, out] FragmentTable Pointer to a list of fragments.
+ @param[in] FragmentCount Number of fragments.
+ @param[in] TrafficDirection Traffic direction.
+ @param[out] RecycleSignal Event for recycling of resources.
+
+ @retval EFI_SUCCESS The packet was bypassed and all buffers remain the same.
+ @retval EFI_SUCCESS The packet was protected.
+ @retval EFI_ACCESS_DENIED The packet was discarded.
+
+**/
+EFI_STATUS
+EFIAPI
+IpSecProcess (
+ IN EFI_IPSEC_PROTOCOL *This,
+ IN EFI_HANDLE NicHandle,
+ IN UINT8 IpVersion,
+ IN OUT VOID *IpHead,
+ IN UINT8 *LastHead,
+ IN VOID *OptionsBuffer,
+ IN UINT32 OptionsLength,
+ IN OUT EFI_IPSEC_FRAGMENT_DATA **FragmentTable,
+ IN UINT32 *FragmentCount,
+ IN EFI_IPSEC_TRAFFIC_DIR TrafficDirection,
+ OUT EFI_EVENT *RecycleSignal
+ );
+
+extern EFI_DPC_PROTOCOL *mDpc;
+extern EFI_IPSEC_PROTOCOL mIpSecInstance;
+
+extern EFI_COMPONENT_NAME2_PROTOCOL gIpSecComponentName2;
+extern EFI_COMPONENT_NAME_PROTOCOL gIpSecComponentName;
+
+
+#endif
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