MdePkg/Include/Protocol/Arp.h

   1 /** @file
   2
   3   EFI ARP Protocol Definition
   4
   5   The EFI ARP Service Binding Protocol is used to locate EFI
   6   ARP Protocol drivers to create and destroy child of the
   7   driver to communicate with other host using ARP protocol.
   8
   9   The EFI ARP Protocol provides services to map IP network
  10   address to hardware address used by a data link protocol.
  11
  12   Copyright (c) 2006 - 2008, Intel Corporation
  13   All rights reserved. This program and the accompanying materials
  14   are licensed and made available under the terms and conditions of the BSD License
  15   which accompanies this distribution.  The full text of the license may be found at
  16   http://opensource.org/licenses/bsd-license.php
  17
  18   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  19   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  20
  21 **/
  22
  23 #ifndef __EFI_ARP_PROTOCOL_H__
  24 #define __EFI_ARP_PROTOCOL_H__
  25
  26 #define EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID \
  27   { \
  28     0xf44c00ee, 0x1f2c, 0x4a00, {0xaa, 0x9, 0x1c, 0x9f, 0x3e, 0x8, 0x0, 0xa3 } \
  29   }
  30
  31 #define EFI_ARP_PROTOCOL_GUID \
  32   { \
  33     0xf4b427bb, 0xba21, 0x4f16, {0xbc, 0x4e, 0x43, 0xe4, 0x16, 0xab, 0x61, 0x9c } \
  34   }
  35
  36 typedef struct _EFI_ARP_PROTOCOL EFI_ARP_PROTOCOL;
  37
  38 typedef struct {
  39   ///
  40   /// Length in bytes of this entry.
  41   ///
  42   UINT32                      Size;
  43
  44   ///
  45   /// Set to TRUE if this entry is a "deny" entry.
  46   /// Set to FALSE if this entry is a "normal" entry.
  47   ///
  48   BOOLEAN                     DenyFlag;
  49
  50   ///
  51   /// Set to TRUE if this entry will not time out.
  52   /// Set to FALSE if this entry will time out.
  53   ///
  54   BOOLEAN                     StaticFlag;
  55
  56   ///
  57   /// 16-bit ARP hardware identifier number.
  58   ///
  59   UINT16                      HwAddressType;
  60
  61   ///
  62   /// 16-bit protocol type number.
  63   ///
  64   UINT16                      SwAddressType;
  65
  66   ///
  67   /// Length of the hardware address.
  68   ///
  69   UINT8                       HwAddressLength;
  70
  71   ///
  72   /// Length of the protocol address.
  73   ///
  74   UINT8                       SwAddressLength;
  75 } EFI_ARP_FIND_DATA;
  76
  77 typedef struct {
  78   ///
  79   /// 16-bit protocol type number in host byte order.
  80   ///
  81   UINT16                    SwAddressType;
  82
  83   ///
  84   /// Length in bytes of the station's protocol address to register.
  85   ///
  86   UINT8                     SwAddressLength;
  87
  88   ///
  89   /// Pointer to the first byte of the protocol address to register. For
  90   /// example, if SwAddressType is 0x0800 (IP), then
  91   /// StationAddress points to the first byte of this station's IP
  92   /// address stored in network byte order.
  93   ///
  94   VOID                      *StationAddress;
  95
  96   ///
  97   /// The timeout value in 100-ns units that is associated with each
  98   /// new dynamic ARP cache entry. If it is set to zero, the value is
  99   /// implementation-specific.
 100   ///
 101   UINT32                    EntryTimeOut;
 102
 103   ///
 104   /// The number of retries before a MAC address is resolved. If it is
 105   /// set to zero, the value is implementation-specific.
 106   ///
 107   UINT32                    RetryCount;
 108
 109   ///
 110   /// The timeout value in 100-ns units that is used to wait for the ARP
 111   /// reply packet or the timeout value between two retries. Set to zero
 112   /// to use implementation-specific value.
 113   ///
 114   UINT32                    RetryTimeOut;
 115 } EFI_ARP_CONFIG_DATA;
 116
 117
 118 /**
 119   Assigns a station address (protocol type and network address) to this instance of the ARP cache.
 120
 121   @param  This                  A pointer to the EFI_ARP_PROTOCOL instance.
 122   @param  ConfigData            A pointer to the EFI_ARP_CONFIG_DATA structure.Buffer
 123
 124   @retval EFI_SUCCESS           The new station address was successfully registered.
 125   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 126                                 This is NULL.
 127                                 SwAddressLength is zero when ConfigData is not NULL.
 128                                 StationAddress is NULL when ConfigData is not NULL.
 129   @retval EFI_ACCESS_DENIED     The SwAddressType, SwAddressLength, or
 130                                 StationAddress is different from the one that is already
 131                                 registered.
 132   @retval EFI_OUT_OF_RESOURCES  Storage for the new StationAddress could not be allocated.
 133
 134 **/
 135 typedef
 136 EFI_STATUS
 137 (EFIAPI *EFI_ARP_CONFIGURE)(
 138   IN EFI_ARP_PROTOCOL       *This,
 139   IN EFI_ARP_CONFIG_DATA    *ConfigData   OPTIONAL
 140   );
 141
 142 /**
 143   Inserts an entry to the ARP cache.
 144
 145   @param  This            A pointer to the EFI_ARP_PROTOCOL instance.
 146   @param  DenyFlag        Set to TRUE if this entry is a "deny" entry. Set to FALSE if this
 147                           entry is a "normal" entry.
 148   @param  TargetSwAddress Pointer to a protocol address to add (or deny). May be set to
 149                           NULL if DenyFlag is TRUE.
 150   @param  TargetHwAddress Pointer to a hardware address to add (or deny). May be set to
 151                           NULL if DenyFlag is TRUE.
 152   @param  TimeoutValue    Time in 100-ns units that this entry will remain in the ARP
 153                           cache. A value of zero means that the entry is permanent. A
 154                           nonzero value will override the one given by Configure() if
 155                           the entry to be added is dynamic entry.
 156   @param  Overwrite       If TRUE, the matching cache entry will be overwritten with the
 157                           supplied parameters. If FALSE, EFI_ACCESS_DENIED is returned
 158                           if the corresponding cache entry already exists.
 159
 160   @retval EFI_SUCCESS           The entry has been added or updated.
 161   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 162                                 This is NULL. DenyFlag is FALSE and TargetHwAddress is NULL.
 163                                 DenyFlag is FALSE and TargetSwAddress is NULL. TargetHwAddress is NULL and TargetSwAddress is NULL.
 164                                 Both TargetSwAddress and TargetHwAddress are not NULL when DenyFlag is TRUE.
 165   @retval EFI_OUT_OF_RESOURCES  The new ARP cache entry could not be allocated.
 166   @retval EFI_ACCESS_DENIED     The ARP cache entry already exists and Overwrite is not true.
 167   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 168
 169 **/
 170 typedef
 171 EFI_STATUS
 172 (EFIAPI *EFI_ARP_ADD)(
 173   IN EFI_ARP_PROTOCOL       *This,
 174   IN BOOLEAN                DenyFlag,
 175   IN VOID                   *TargetSwAddress  OPTIONAL,
 176   IN VOID                   *TargetHwAddress  OPTIONAL,
 177   IN UINT32                 TimeoutValue,
 178   IN BOOLEAN                Overwrite
 179   );
 180
 181 /**
 182   Locates one or more entries in the ARP cache.
 183
 184   @param  This            A pointer to the EFI_ARP_PROTOCOL instance.
 185   @param  BySwAddress     Set to TRUE to look for matching software protocol addresses.
 186                           Set to FALSE to look for matching hardware protocol addresses.
 187   @param  AddressBuffer   Pointer to address buffer. Set to NULL to match all addresses.
 188   @param  EntryLength     The size of an entry in the entries buffer. To keep the
 189                           EFI_ARP_FIND_DATA structure properly aligned, this field
 190                           may be longer than sizeof(EFI_ARP_FIND_DATA) plus
 191                           the length of the software and hardware addresses.
 192   @param  EntryCount      The number of ARP cache entries that are found by the specified criteria.
 193   @param  Entries         Pointer to the buffer that will receive the ARP cache entries.
 194   @param  Refresh         Set to TRUE to refresh the timeout value of the matching ARP
 195                           cache entry.
 196
 197   @retval EFI_SUCCESS           The requested ARP cache entries were copied into the buffer.
 198   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 199                                 This is NULL. Both EntryCount and EntryLength are NULL,
 200                                 when Refresh is FALSE.
 201   @retval EFI_NOT_FOUND         No matching entries were found.
 202   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 203
 204 **/
 205 typedef
 206 EFI_STATUS
 207 (EFIAPI *EFI_ARP_FIND)(
 208   IN EFI_ARP_PROTOCOL       *This,
 209   IN BOOLEAN                BySwAddress,
 210   IN VOID                   *AddressBuffer    OPTIONAL,
 211   OUT UINT32                *EntryLength      OPTIONAL,
 212   OUT UINT32                *EntryCount       OPTIONAL,
 213   OUT EFI_ARP_FIND_DATA     **Entries         OPTIONAL,
 214   IN BOOLEAN                Refresh
 215   );
 216
 217
 218 /**
 219   Removes entries from the ARP cache.
 220
 221   @param  This          A pointer to the EFI_ARP_PROTOCOL instance.
 222   @param  BySwAddress   Set to TRUE to delete matching protocol addresses.
 223                         Set to FALSE to delete matching hardware addresses.
 224   @param  AddressBuffer Pointer to the address buffer that is used as a key to look for the
 225                         cache entry. Set to NULL to delete all entries.
 226
 227   @retval EFI_SUCCESS           The entry was removed from the ARP cache.
 228   @retval EFI_INVALID_PARAMETER This is NULL.
 229   @retval EFI_NOT_FOUND         The specified deletion key was not found.
 230   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 231
 232 **/
 233 typedef
 234 EFI_STATUS
 235 (EFIAPI *EFI_ARP_DELETE)(
 236   IN EFI_ARP_PROTOCOL       *This,
 237   IN BOOLEAN                BySwAddress,
 238   IN VOID                   *AddressBuffer   OPTIONAL
 239   );
 240
 241 /**
 242   Removes all dynamic ARP cache entries that were added by this interface.
 243
 244   @param  This                  A pointer to the EFI_ARP_PROTOCOL instance.
 245
 246   @retval EFI_SUCCESS           The cache has been flushed.
 247   @retval EFI_INVALID_PARAMETER This is NULL.
 248   @retval EFI_NOT_FOUND         There are no matching dynamic cache entries.
 249   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 250
 251 **/
 252 typedef
 253 EFI_STATUS
 254 (EFIAPI *EFI_ARP_FLUSH)(
 255   IN EFI_ARP_PROTOCOL       *This
 256   );
 257
 258 /**
 259   Starts an ARP request session.
 260
 261   @param  This            A pointer to the EFI_ARP_PROTOCOL instance.
 262   @param  TargetSwAddress Pointer to the protocol address to resolve.
 263   @param  ResolvedEvent   Pointer to the event that will be signaled when the address is
 264                           resolved or some error occurs.
 265   @param  TargetHwAddress Pointer to the buffer for the resolved hardware address in
 266                           network byte order. The buffer must be large enough to hold the
 267                           resulting hardware address. TargetHwAddress must not be
 268                           NULL.
 269
 270   @retval EFI_SUCCESS           The data was copied from the ARP cache into the
 271                                 TargetHwAddress buffer.
 272   @retval EFI_INVALID_PARAMETER This or TargetHwAddress is NULL.
 273   @retval EFI_ACCESS_DENIED     The requested address is not present in the normal ARP cache but
 274                                 is present in the deny address list. Outgoing traffic to that address is
 275                                 forbidden.
 276   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 277   @retval EFI_NOT_READY         The request has been started and is not finished.
 278   @retval EFI_UNSUPPORTED       The requested conversion is not supported in this implementation or
 279                                 configuration.
 280
 281 **/
 282 typedef
 283 EFI_STATUS
 284 (EFIAPI *EFI_ARP_REQUEST)(
 285   IN EFI_ARP_PROTOCOL       *This,
 286   IN VOID                   *TargetSwAddress  OPTIONAL,
 287   IN EFI_EVENT              ResolvedEvent     OPTIONAL,
 288   OUT VOID                  *TargetHwAddress
 289   );
 290
 291 /**
 292   Cancels an ARP request session.
 293
 294   @param  This            A pointer to the EFI_ARP_PROTOCOL instance.
 295   @param  TargetSwAddress Pointer to the protocol address in previous request session.
 296   @param  ResolvedEvent   Pointer to the event that is used as the notification event in
 297                           previous request session.
 298
 299   @retval EFI_SUCCESS           The pending request session(s) is/are aborted and corresponding
 300                                 event(s) is/are signaled.
 301   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 302                                 This is NULL.
 303                                 TargetSwAddress is not NULL and ResolvedEvent is NULL.
 304                                 TargetSwAddress is NULL and ResolvedEvent is not NULL
 305   @retval EFI_NOT_STARTED       The ARP driver instance has not been configured.
 306   @retval EFI_NOT_FOUND         The request is not issued by
 307                                 EFI_ARP_PROTOCOL.Request().
 308
 309 **/
 310 typedef
 311 EFI_STATUS
 312 (EFIAPI *EFI_ARP_CANCEL)(
 313   IN EFI_ARP_PROTOCOL       *This,
 314   IN VOID                   *TargetSwAddress  OPTIONAL,
 315   IN EFI_EVENT              ResolvedEvent     OPTIONAL
 316   );
 317
 318 ///
 319 /// ARP is used to resolve local network protocol addresses into
 320 /// network hardware addresses.
 321 ///
 322 struct _EFI_ARP_PROTOCOL {
 323   EFI_ARP_CONFIGURE         Configure;
 324   EFI_ARP_ADD               Add;
 325   EFI_ARP_FIND              Find;
 326   EFI_ARP_DELETE            Delete;
 327   EFI_ARP_FLUSH             Flush;
 328   EFI_ARP_REQUEST           Request;
 329   EFI_ARP_CANCEL            Cancel;
 330 };
 331
 332
 333 extern EFI_GUID gEfiArpServiceBindingProtocolGuid;
 334 extern EFI_GUID gEfiArpProtocolGuid;
 335
 336 #endif