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380 lines
16 KiB
C
380 lines
16 KiB
C
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/** @file
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EFI ARP Protocol Definition
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The EFI ARP Service Binding Protocol is used to locate EFI
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ARP Protocol drivers to create and destroy child of the
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driver to communicate with other host using ARP protocol.
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The EFI ARP Protocol provides services to map IP network
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address to hardware address used by a data link protocol.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This Protocol was introduced in UEFI Specification 2.0.
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**/
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#ifndef __EFI_ARP_PROTOCOL_H__
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#define __EFI_ARP_PROTOCOL_H__
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#define EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID \
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{ \
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0xf44c00ee, 0x1f2c, 0x4a00, {0xaa, 0x9, 0x1c, 0x9f, 0x3e, 0x8, 0x0, 0xa3 } \
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}
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#define EFI_ARP_PROTOCOL_GUID \
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{ \
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0xf4b427bb, 0xba21, 0x4f16, {0xbc, 0x4e, 0x43, 0xe4, 0x16, 0xab, 0x61, 0x9c } \
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}
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typedef struct _EFI_ARP_PROTOCOL EFI_ARP_PROTOCOL;
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typedef struct {
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///
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/// Length in bytes of this entry.
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///
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UINT32 Size;
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///
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/// Set to TRUE if this entry is a "deny" entry.
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/// Set to FALSE if this entry is a "normal" entry.
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///
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BOOLEAN DenyFlag;
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///
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/// Set to TRUE if this entry will not time out.
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/// Set to FALSE if this entry will time out.
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///
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BOOLEAN StaticFlag;
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///
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/// 16-bit ARP hardware identifier number.
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///
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UINT16 HwAddressType;
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///
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/// 16-bit protocol type number.
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///
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UINT16 SwAddressType;
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///
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/// The length of the hardware address.
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///
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UINT8 HwAddressLength;
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///
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/// The length of the protocol address.
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///
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UINT8 SwAddressLength;
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} EFI_ARP_FIND_DATA;
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typedef struct {
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///
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/// 16-bit protocol type number in host byte order.
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///
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UINT16 SwAddressType;
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///
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/// The length in bytes of the station's protocol address to register.
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///
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UINT8 SwAddressLength;
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///
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/// The pointer to the first byte of the protocol address to register. For
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/// example, if SwAddressType is 0x0800 (IP), then
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/// StationAddress points to the first byte of this station's IP
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/// address stored in network byte order.
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///
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VOID *StationAddress;
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///
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/// The timeout value in 100-ns units that is associated with each
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/// new dynamic ARP cache entry. If it is set to zero, the value is
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/// implementation-specific.
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///
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UINT32 EntryTimeOut;
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///
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/// The number of retries before a MAC address is resolved. If it is
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/// set to zero, the value is implementation-specific.
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///
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UINT32 RetryCount;
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///
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/// The timeout value in 100-ns units that is used to wait for the ARP
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/// reply packet or the timeout value between two retries. Set to zero
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/// to use implementation-specific value.
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///
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UINT32 RetryTimeOut;
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} EFI_ARP_CONFIG_DATA;
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/**
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This function is used to assign a station address to the ARP cache for this instance
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of the ARP driver.
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Each ARP instance has one station address. The EFI_ARP_PROTOCOL driver will
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respond to ARP requests that match this registered station address. A call to
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this function with the ConfigData field set to NULL will reset this ARP instance.
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Once a protocol type and station address have been assigned to this ARP instance,
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all the following ARP functions will use this information. Attempting to change
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the protocol type or station address to a configured ARP instance will result in errors.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@param ConfigData The pointer to the EFI_ARP_CONFIG_DATA structure.
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@retval EFI_SUCCESS The new station address was successfully
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registered.
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@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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* This is NULL.
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* SwAddressLength is zero when ConfigData is not NULL.
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* StationAddress is NULL when ConfigData is not NULL.
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@retval EFI_ACCESS_DENIED The SwAddressType, SwAddressLength, or
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StationAddress is different from the one that is
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already registered.
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@retval EFI_OUT_OF_RESOURCES Storage for the new StationAddress could not be
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allocated.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_CONFIGURE)(
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IN EFI_ARP_PROTOCOL *This,
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IN EFI_ARP_CONFIG_DATA *ConfigData OPTIONAL
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);
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/**
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This function is used to insert entries into the ARP cache.
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ARP cache entries are typically inserted and updated by network protocol drivers
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as network traffic is processed. Most ARP cache entries will time out and be
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deleted if the network traffic stops. ARP cache entries that were inserted
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by the Add() function may be static (will not time out) or dynamic (will time out).
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Default ARP cache timeout values are not covered in most network protocol
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specifications (although RFC 1122 comes pretty close) and will only be
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discussed in general terms in this specification. The timeout values that are
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used in the EFI Sample Implementation should be used only as a guideline.
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Final product implementations of the EFI network stack should be tuned for
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their expected network environments.
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@param This Pointer to the EFI_ARP_PROTOCOL instance.
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@param DenyFlag Set to TRUE if this entry is a deny entry. Set to
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FALSE if this entry is a normal entry.
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@param TargetSwAddress Pointer to a protocol address to add (or deny).
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May be set to NULL if DenyFlag is TRUE.
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@param TargetHwAddress Pointer to a hardware address to add (or deny).
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May be set to NULL if DenyFlag is TRUE.
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@param TimeoutValue Time in 100-ns units that this entry will remain
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in the ARP cache. A value of zero means that the
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entry is permanent. A nonzero value will override
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the one given by Configure() if the entry to be
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added is a dynamic entry.
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@param Overwrite If TRUE, the matching cache entry will be
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overwritten with the supplied parameters. If
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FALSE, EFI_ACCESS_DENIED is returned if the
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corresponding cache entry already exists.
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@retval EFI_SUCCESS The entry has been added or updated.
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@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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* This is NULL.
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* DenyFlag is FALSE and TargetHwAddress is NULL.
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* DenyFlag is FALSE and TargetSwAddress is NULL.
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* TargetHwAddress is NULL and TargetSwAddress is NULL.
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* Neither TargetSwAddress nor TargetHwAddress are NULL when DenyFlag is
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TRUE.
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@retval EFI_OUT_OF_RESOURCES The new ARP cache entry could not be allocated.
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@retval EFI_ACCESS_DENIED The ARP cache entry already exists and Overwrite
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is not true.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_ADD)(
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IN EFI_ARP_PROTOCOL *This,
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IN BOOLEAN DenyFlag,
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IN VOID *TargetSwAddress OPTIONAL,
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IN VOID *TargetHwAddress OPTIONAL,
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IN UINT32 TimeoutValue,
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IN BOOLEAN Overwrite
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);
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/**
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This function searches the ARP cache for matching entries and allocates a buffer into
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which those entries are copied.
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The first part of the allocated buffer is EFI_ARP_FIND_DATA, following which
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are protocol address pairs and hardware address pairs.
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When finding a specific protocol address (BySwAddress is TRUE and AddressBuffer
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is not NULL), the ARP cache timeout for the found entry is reset if Refresh is
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set to TRUE. If the found ARP cache entry is a permanent entry, it is not
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affected by Refresh.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@param BySwAddress Set to TRUE to look for matching software protocol
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addresses. Set to FALSE to look for matching
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hardware protocol addresses.
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@param AddressBuffer The pointer to the address buffer. Set to NULL
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to match all addresses.
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@param EntryLength The size of an entry in the entries buffer.
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@param EntryCount The number of ARP cache entries that are found by
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the specified criteria.
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@param Entries The pointer to the buffer that will receive the ARP
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cache entries.
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@param Refresh Set to TRUE to refresh the timeout value of the
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matching ARP cache entry.
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@retval EFI_SUCCESS The requested ARP cache entries were copied into
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the buffer.
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@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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This is NULL. Both EntryCount and EntryLength are
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NULL, when Refresh is FALSE.
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@retval EFI_NOT_FOUND No matching entries were found.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_FIND)(
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IN EFI_ARP_PROTOCOL *This,
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IN BOOLEAN BySwAddress,
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IN VOID *AddressBuffer OPTIONAL,
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OUT UINT32 *EntryLength OPTIONAL,
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OUT UINT32 *EntryCount OPTIONAL,
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OUT EFI_ARP_FIND_DATA **Entries OPTIONAL,
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IN BOOLEAN Refresh
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);
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/**
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This function removes specified ARP cache entries.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@param BySwAddress Set to TRUE to delete matching protocol addresses.
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Set to FALSE to delete matching hardware
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addresses.
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@param AddressBuffer The pointer to the address buffer that is used as a
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key to look for the cache entry. Set to NULL to
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delete all entries.
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@retval EFI_SUCCESS The entry was removed from the ARP cache.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_NOT_FOUND The specified deletion key was not found.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_DELETE)(
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IN EFI_ARP_PROTOCOL *This,
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IN BOOLEAN BySwAddress,
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IN VOID *AddressBuffer OPTIONAL
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);
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/**
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This function delete all dynamic entries from the ARP cache that match the specified
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software protocol type.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@retval EFI_SUCCESS The cache has been flushed.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_NOT_FOUND There are no matching dynamic cache entries.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_FLUSH)(
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IN EFI_ARP_PROTOCOL *This
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);
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/**
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This function tries to resolve the TargetSwAddress and optionally returns a
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TargetHwAddress if it already exists in the ARP cache.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@param TargetSwAddress The pointer to the protocol address to resolve.
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@param ResolvedEvent The pointer to the event that will be signaled when
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the address is resolved or some error occurs.
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@param TargetHwAddress The pointer to the buffer for the resolved hardware
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address in network byte order.
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@retval EFI_SUCCESS The data is copied from the ARP cache into the
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TargetHwAddress buffer.
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@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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This is NULL. TargetHwAddress is NULL.
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@retval EFI_ACCESS_DENIED The requested address is not present in the normal
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ARP cache but is present in the deny address list.
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Outgoing traffic to that address is forbidden.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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@retval EFI_NOT_READY The request has been started and is not finished.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_REQUEST)(
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IN EFI_ARP_PROTOCOL *This,
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IN VOID *TargetSwAddress OPTIONAL,
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IN EFI_EVENT ResolvedEvent OPTIONAL,
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OUT VOID *TargetHwAddress
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);
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/**
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This function aborts the previous ARP request (identified by This, TargetSwAddress
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and ResolvedEvent) that is issued by EFI_ARP_PROTOCOL.Request().
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If the request is in the internal ARP request queue, the request is aborted
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immediately and its ResolvedEvent is signaled. Only an asynchronous address
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request needs to be canceled. If TargeSwAddress and ResolveEvent are both
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NULL, all the pending asynchronous requests that have been issued by This
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instance will be cancelled and their corresponding events will be signaled.
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@param This The pointer to the EFI_ARP_PROTOCOL instance.
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@param TargetSwAddress The pointer to the protocol address in previous
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request session.
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@param ResolvedEvent Pointer to the event that is used as the
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notification event in previous request session.
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@retval EFI_SUCCESS The pending request session(s) is/are aborted and
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corresponding event(s) is/are signaled.
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@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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This is NULL. TargetSwAddress is not NULL and
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ResolvedEvent is NULL. TargetSwAddress is NULL and
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ResolvedEvent is not NULL.
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@retval EFI_NOT_STARTED The ARP driver instance has not been configured.
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@retval EFI_NOT_FOUND The request is not issued by
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EFI_ARP_PROTOCOL.Request().
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ARP_CANCEL)(
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IN EFI_ARP_PROTOCOL *This,
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IN VOID *TargetSwAddress OPTIONAL,
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IN EFI_EVENT ResolvedEvent OPTIONAL
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);
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///
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/// ARP is used to resolve local network protocol addresses into
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/// network hardware addresses.
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///
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struct _EFI_ARP_PROTOCOL {
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EFI_ARP_CONFIGURE Configure;
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EFI_ARP_ADD Add;
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|
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
|