--- /dev/null
+/** @file
+ EFI ARP Protocol Definition
+
+ The EFI ARP Service Binding Protocol is used to locate EFI
+ ARP Protocol drivers to create and destroy child of the
+ driver to communicate with other host using ARP protocol.
+ The EFI ARP Protocol provides services to map IP network
+ address to hardware address used by a data link protocol.
+
+Copyright (c) 2006 - 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 that 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.
+
+ @par Revision Reference:
+ This Protocol was introduced in UEFI Specification 2.0.
+
+**/
+
+#ifndef __EFI_ARP_PROTOCOL_H__
+#define __EFI_ARP_PROTOCOL_H__
+
+FILE_LICENCE ( BSD3 );
+
+#define EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID \
+ { \
+ 0xf44c00ee, 0x1f2c, 0x4a00, {0xaa, 0x9, 0x1c, 0x9f, 0x3e, 0x8, 0x0, 0xa3 } \
+ }
+
+#define EFI_ARP_PROTOCOL_GUID \
+ { \
+ 0xf4b427bb, 0xba21, 0x4f16, {0xbc, 0x4e, 0x43, 0xe4, 0x16, 0xab, 0x61, 0x9c } \
+ }
+
+typedef struct _EFI_ARP_PROTOCOL EFI_ARP_PROTOCOL;
+
+typedef struct {
+ ///
+ /// Length in bytes of this entry.
+ ///
+ UINT32 Size;
+
+ ///
+ /// Set to TRUE if this entry is a "deny" entry.
+ /// Set to FALSE if this entry is a "normal" entry.
+ ///
+ BOOLEAN DenyFlag;
+
+ ///
+ /// Set to TRUE if this entry will not time out.
+ /// Set to FALSE if this entry will time out.
+ ///
+ BOOLEAN StaticFlag;
+
+ ///
+ /// 16-bit ARP hardware identifier number.
+ ///
+ UINT16 HwAddressType;
+
+ ///
+ /// 16-bit protocol type number.
+ ///
+ UINT16 SwAddressType;
+
+ ///
+ /// The length of the hardware address.
+ ///
+ UINT8 HwAddressLength;
+
+ ///
+ /// The length of the protocol address.
+ ///
+ UINT8 SwAddressLength;
+} EFI_ARP_FIND_DATA;
+
+typedef struct {
+ ///
+ /// 16-bit protocol type number in host byte order.
+ ///
+ UINT16 SwAddressType;
+
+ ///
+ /// The length in bytes of the station's protocol address to register.
+ ///
+ UINT8 SwAddressLength;
+
+ ///
+ /// The pointer to the first byte of the protocol address to register. For
+ /// example, if SwAddressType is 0x0800 (IP), then
+ /// StationAddress points to the first byte of this station's IP
+ /// address stored in network byte order.
+ ///
+ VOID *StationAddress;
+
+ ///
+ /// The timeout value in 100-ns units that is associated with each
+ /// new dynamic ARP cache entry. If it is set to zero, the value is
+ /// implementation-specific.
+ ///
+ UINT32 EntryTimeOut;
+
+ ///
+ /// The number of retries before a MAC address is resolved. If it is
+ /// set to zero, the value is implementation-specific.
+ ///
+ UINT32 RetryCount;
+
+ ///
+ /// The timeout value in 100-ns units that is used to wait for the ARP
+ /// reply packet or the timeout value between two retries. Set to zero
+ /// to use implementation-specific value.
+ ///
+ UINT32 RetryTimeOut;
+} EFI_ARP_CONFIG_DATA;
+
+
+/**
+ This function is used to assign a station address to the ARP cache for this instance
+ of the ARP driver.
+
+ Each ARP instance has one station address. The EFI_ARP_PROTOCOL driver will
+ respond to ARP requests that match this registered station address. A call to
+ this function with the ConfigData field set to NULL will reset this ARP instance.
+
+ Once a protocol type and station address have been assigned to this ARP instance,
+ all the following ARP functions will use this information. Attempting to change
+ the protocol type or station address to a configured ARP instance will result in errors.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+ @param ConfigData The pointer to the EFI_ARP_CONFIG_DATA structure.
+
+ @retval EFI_SUCCESS The new station address was successfully
+ registered.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ * This is NULL.
+ * SwAddressLength is zero when ConfigData is not NULL.
+ * StationAddress is NULL when ConfigData is not NULL.
+ @retval EFI_ACCESS_DENIED The SwAddressType, SwAddressLength, or
+ StationAddress is different from the one that is
+ already registered.
+ @retval EFI_OUT_OF_RESOURCES Storage for the new StationAddress could not be
+ allocated.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_CONFIGURE)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN EFI_ARP_CONFIG_DATA *ConfigData OPTIONAL
+ );
+
+/**
+ This function is used to insert entries into the ARP cache.
+
+ ARP cache entries are typically inserted and updated by network protocol drivers
+ as network traffic is processed. Most ARP cache entries will time out and be
+ deleted if the network traffic stops. ARP cache entries that were inserted
+ by the Add() function may be static (will not time out) or dynamic (will time out).
+ Default ARP cache timeout values are not covered in most network protocol
+ specifications (although RFC 1122 comes pretty close) and will only be
+ discussed in general terms in this specification. The timeout values that are
+ used in the EFI Sample Implementation should be used only as a guideline.
+ Final product implementations of the EFI network stack should be tuned for
+ their expected network environments.
+
+ @param This Pointer to the EFI_ARP_PROTOCOL instance.
+ @param DenyFlag Set to TRUE if this entry is a deny entry. Set to
+ FALSE if this entry is a normal entry.
+ @param TargetSwAddress Pointer to a protocol address to add (or deny).
+ May be set to NULL if DenyFlag is TRUE.
+ @param TargetHwAddress Pointer to a hardware address to add (or deny).
+ May be set to NULL if DenyFlag is TRUE.
+ @param TimeoutValue Time in 100-ns units that this entry will remain
+ in the ARP cache. A value of zero means that the
+ entry is permanent. A nonzero value will override
+ the one given by Configure() if the entry to be
+ added is a dynamic entry.
+ @param Overwrite If TRUE, the matching cache entry will be
+ overwritten with the supplied parameters. If
+ FALSE, EFI_ACCESS_DENIED is returned if the
+ corresponding cache entry already exists.
+
+ @retval EFI_SUCCESS The entry has been added or updated.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ * This is NULL.
+ * DenyFlag is FALSE and TargetHwAddress is NULL.
+ * DenyFlag is FALSE and TargetSwAddress is NULL.
+ * TargetHwAddress is NULL and TargetSwAddress is NULL.
+ * Neither TargetSwAddress nor TargetHwAddress are NULL when DenyFlag is
+ TRUE.
+ @retval EFI_OUT_OF_RESOURCES The new ARP cache entry could not be allocated.
+ @retval EFI_ACCESS_DENIED The ARP cache entry already exists and Overwrite
+ is not true.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_ADD)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN BOOLEAN DenyFlag,
+ IN VOID *TargetSwAddress OPTIONAL,
+ IN VOID *TargetHwAddress OPTIONAL,
+ IN UINT32 TimeoutValue,
+ IN BOOLEAN Overwrite
+ );
+
+/**
+ This function searches the ARP cache for matching entries and allocates a buffer into
+ which those entries are copied.
+
+ The first part of the allocated buffer is EFI_ARP_FIND_DATA, following which
+ are protocol address pairs and hardware address pairs.
+ When finding a specific protocol address (BySwAddress is TRUE and AddressBuffer
+ is not NULL), the ARP cache timeout for the found entry is reset if Refresh is
+ set to TRUE. If the found ARP cache entry is a permanent entry, it is not
+ affected by Refresh.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+ @param BySwAddress Set to TRUE to look for matching software protocol
+ addresses. Set to FALSE to look for matching
+ hardware protocol addresses.
+ @param AddressBuffer The pointer to the address buffer. Set to NULL
+ to match all addresses.
+ @param EntryLength The size of an entry in the entries buffer.
+ @param EntryCount The number of ARP cache entries that are found by
+ the specified criteria.
+ @param Entries The pointer to the buffer that will receive the ARP
+ cache entries.
+ @param Refresh Set to TRUE to refresh the timeout value of the
+ matching ARP cache entry.
+
+ @retval EFI_SUCCESS The requested ARP cache entries were copied into
+ the buffer.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ This is NULL. Both EntryCount and EntryLength are
+ NULL, when Refresh is FALSE.
+ @retval EFI_NOT_FOUND No matching entries were found.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_FIND)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN BOOLEAN BySwAddress,
+ IN VOID *AddressBuffer OPTIONAL,
+ OUT UINT32 *EntryLength OPTIONAL,
+ OUT UINT32 *EntryCount OPTIONAL,
+ OUT EFI_ARP_FIND_DATA **Entries OPTIONAL,
+ IN BOOLEAN Refresh
+ );
+
+
+/**
+ This function removes specified ARP cache entries.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+ @param BySwAddress Set to TRUE to delete matching protocol addresses.
+ Set to FALSE to delete matching hardware
+ addresses.
+ @param AddressBuffer The pointer to the address buffer that is used as a
+ key to look for the cache entry. Set to NULL to
+ delete all entries.
+
+ @retval EFI_SUCCESS The entry was removed from the ARP cache.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_NOT_FOUND The specified deletion key was not found.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_DELETE)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN BOOLEAN BySwAddress,
+ IN VOID *AddressBuffer OPTIONAL
+ );
+
+/**
+ This function delete all dynamic entries from the ARP cache that match the specified
+ software protocol type.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+
+ @retval EFI_SUCCESS The cache has been flushed.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_NOT_FOUND There are no matching dynamic cache entries.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_FLUSH)(
+ IN EFI_ARP_PROTOCOL *This
+ );
+
+/**
+ This function tries to resolve the TargetSwAddress and optionally returns a
+ TargetHwAddress if it already exists in the ARP cache.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+ @param TargetSwAddress The pointer to the protocol address to resolve.
+ @param ResolvedEvent The pointer to the event that will be signaled when
+ the address is resolved or some error occurs.
+ @param TargetHwAddress The pointer to the buffer for the resolved hardware
+ address in network byte order.
+
+ @retval EFI_SUCCESS The data is copied from the ARP cache into the
+ TargetHwAddress buffer.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ This is NULL. TargetHwAddress is NULL.
+ @retval EFI_ACCESS_DENIED The requested address is not present in the normal
+ ARP cache but is present in the deny address list.
+ Outgoing traffic to that address is forbidden.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+ @retval EFI_NOT_READY The request has been started and is not finished.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_REQUEST)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN VOID *TargetSwAddress OPTIONAL,
+ IN EFI_EVENT ResolvedEvent OPTIONAL,
+ OUT VOID *TargetHwAddress
+ );
+
+/**
+ This function aborts the previous ARP request (identified by This, TargetSwAddress
+ and ResolvedEvent) that is issued by EFI_ARP_PROTOCOL.Request().
+
+ If the request is in the internal ARP request queue, the request is aborted
+ immediately and its ResolvedEvent is signaled. Only an asynchronous address
+ request needs to be canceled. If TargeSwAddress and ResolveEvent are both
+ NULL, all the pending asynchronous requests that have been issued by This
+ instance will be cancelled and their corresponding events will be signaled.
+
+ @param This The pointer to the EFI_ARP_PROTOCOL instance.
+ @param TargetSwAddress The pointer to the protocol address in previous
+ request session.
+ @param ResolvedEvent Pointer to the event that is used as the
+ notification event in previous request session.
+
+ @retval EFI_SUCCESS The pending request session(s) is/are aborted and
+ corresponding event(s) is/are signaled.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ This is NULL. TargetSwAddress is not NULL and
+ ResolvedEvent is NULL. TargetSwAddress is NULL and
+ ResolvedEvent is not NULL.
+ @retval EFI_NOT_STARTED The ARP driver instance has not been configured.
+ @retval EFI_NOT_FOUND The request is not issued by
+ EFI_ARP_PROTOCOL.Request().
+
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ARP_CANCEL)(
+ IN EFI_ARP_PROTOCOL *This,
+ IN VOID *TargetSwAddress OPTIONAL,
+ IN EFI_EVENT ResolvedEvent OPTIONAL
+ );
+
+///
+/// ARP is used to resolve local network protocol addresses into
+/// network hardware addresses.
+///
+struct _EFI_ARP_PROTOCOL {
+ EFI_ARP_CONFIGURE Configure;
+ EFI_ARP_ADD Add;
+ EFI_ARP_FIND Find;
+ EFI_ARP_DELETE Delete;
+ EFI_ARP_FLUSH Flush;
+ EFI_ARP_REQUEST Request;
+ EFI_ARP_CANCEL Cancel;
+};
+
+
+extern EFI_GUID gEfiArpServiceBindingProtocolGuid;
+extern EFI_GUID gEfiArpProtocolGuid;
+
+#endif
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