| | 1 | /** @file\r |
| | 2 | EFI Address Resolution Protocol (ARP) Protocol interface header file.\r |
| | 3 | \r |
| | 4 | Copyright (c) 2006 - 2008, Intel Corporation.<BR>\r |
| | 5 | All rights reserved. This program and the accompanying materials\r |
| | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| | 7 | which accompanies this distribution. The full text of the license may be found at<BR>\r |
| | 8 | http://opensource.org/licenses/bsd-license.php\r |
| | 9 | \r |
| | 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| | 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| | 12 | \r |
| | 13 | **/\r |
| | 14 | \r |
| | 15 | #ifndef _ARP_IMPL_H_\r |
| | 16 | #define _ARP_IMPL_H_\r |
| | 17 | \r |
| | 18 | \r |
| | 19 | #include <Uefi.h>\r |
| | 20 | \r |
| | 21 | #include <Protocol/Arp.h>\r |
| | 22 | #include <Protocol/ManagedNetwork.h>\r |
| | 23 | #include <Protocol/ServiceBinding.h>\r |
| | 24 | \r |
| | 25 | #include <Library/DebugLib.h>\r |
| | 26 | #include <Library/UefiDriverEntryPoint.h>\r |
| | 27 | #include <Library/UefiBootServicesTableLib.h>\r |
| | 28 | #include <Library/UefiLib.h>\r |
| | 29 | #include <Library/NetLib.h>\r |
| | 30 | #include <Library/BaseLib.h>\r |
| | 31 | #include <Library/BaseMemoryLib.h>\r |
| | 32 | #include <Library/MemoryAllocationLib.h>\r |
| | 33 | #include <Library/DpcLib.h>\r |
| | 34 | \r |
| | 35 | //\r |
| | 36 | // Ethernet protocol type definitions.\r |
| | 37 | //\r |
| | 38 | #define ARP_ETHER_PROTO_TYPE 0x0806\r |
| | 39 | #define IPV4_ETHER_PROTO_TYPE 0x0800\r |
| | 40 | #define IPV6_ETHER_PROTO_TYPE 0x86DD\r |
| | 41 | \r |
| | 42 | //\r |
| | 43 | // ARP opcode definitions.\r |
| | 44 | //\r |
| | 45 | #define ARP_OPCODE_REQUEST 0x0001\r |
| | 46 | #define ARP_OPCODE_REPLY 0x0002\r |
| | 47 | \r |
| | 48 | //\r |
| | 49 | // ARP timeout, retry count and interval definitions.\r |
| | 50 | //\r |
| | 51 | #define ARP_DEFAULT_TIMEOUT_VALUE (400 * TICKS_PER_SECOND)\r |
| | 52 | #define ARP_DEFAULT_RETRY_COUNT 2\r |
| | 53 | #define ARP_DEFAULT_RETRY_INTERVAL (5 * TICKS_PER_MS)\r |
| | 54 | #define ARP_PERIODIC_TIMER_INTERVAL (500 * TICKS_PER_MS)\r |
| | 55 | \r |
| | 56 | //\r |
| | 57 | // ARP packet head definition.\r |
| | 58 | //\r |
| | 59 | #pragma pack(1)\r |
| | 60 | typedef struct {\r |
| | 61 | UINT16 HwType;\r |
| | 62 | UINT16 ProtoType;\r |
| | 63 | UINT8 HwAddrLen;\r |
| | 64 | UINT8 ProtoAddrLen;\r |
| | 65 | UINT16 OpCode;\r |
| | 66 | } ARP_HEAD;\r |
| | 67 | #pragma pack()\r |
| | 68 | \r |
| | 69 | //\r |
| | 70 | // ARP Address definition for internal use.\r |
| | 71 | //\r |
| | 72 | typedef struct {\r |
| | 73 | UINT8 *SenderHwAddr;\r |
| | 74 | UINT8 *SenderProtoAddr;\r |
| | 75 | UINT8 *TargetHwAddr;\r |
| | 76 | UINT8 *TargetProtoAddr;\r |
| | 77 | } ARP_ADDRESS;\r |
| | 78 | \r |
| | 79 | #define MATCH_SW_ADDRESS 0x1\r |
| | 80 | #define MATCH_HW_ADDRESS 0x2\r |
| | 81 | \r |
| | 82 | //\r |
| | 83 | // Enumeration for the search type. A search type is specified as the keyword to find\r |
| | 84 | // a cache entry in the cache table.\r |
| | 85 | //\r |
| | 86 | typedef enum {\r |
| | 87 | ByNone = 0,\r |
| | 88 | ByProtoAddress = MATCH_SW_ADDRESS,\r |
| | 89 | ByHwAddress = MATCH_HW_ADDRESS,\r |
| | 90 | ByBoth = MATCH_SW_ADDRESS | MATCH_HW_ADDRESS\r |
| | 91 | } FIND_OPTYPE;\r |
| | 92 | \r |
| | 93 | #define ARP_INSTANCE_DATA_SIGNATURE SIGNATURE_32('A', 'R', 'P', 'I')\r |
| | 94 | \r |
| | 95 | /**\r |
| | 96 | Returns a pointer to the ARP_INSTANCE_DATA structure from the input a.\r |
| | 97 | \r |
| | 98 | If the signatures matches, then a pointer to the data structure that contains \r |
| | 99 | a specified field of that data structure is returned.\r |
| | 100 | \r |
| | 101 | @param a Pointer to the field specified by ArpProto within a data \r |
| | 102 | structure of type ARP_INSTANCE_DATA.\r |
| | 103 | \r |
| | 104 | **/\r |
| | 105 | #define ARP_INSTANCE_DATA_FROM_THIS(a) \\r |
| | 106 | CR ( \\r |
| | 107 | (a), \\r |
| | 108 | ARP_INSTANCE_DATA, \\r |
| | 109 | ArpProto, \\r |
| | 110 | ARP_INSTANCE_DATA_SIGNATURE \\r |
| | 111 | )\r |
| | 112 | \r |
| | 113 | typedef struct _ARP_SERVICE_DATA ARP_SERVICE_DATA;\r |
| | 114 | \r |
| | 115 | //\r |
| | 116 | // ARP instance context data structure.\r |
| | 117 | //\r |
| | 118 | typedef struct {\r |
| | 119 | UINT32 Signature;\r |
| | 120 | ARP_SERVICE_DATA *ArpService;\r |
| | 121 | EFI_HANDLE Handle;\r |
| | 122 | EFI_ARP_PROTOCOL ArpProto;\r |
| | 123 | LIST_ENTRY List;\r |
| | 124 | EFI_ARP_CONFIG_DATA ConfigData;\r |
| | 125 | BOOLEAN Configured;\r |
| | 126 | BOOLEAN Destroyed;\r |
| | 127 | } ARP_INSTANCE_DATA;\r |
| | 128 | \r |
| | 129 | #define ARP_SERVICE_DATA_SIGNATURE SIGNATURE_32('A', 'R', 'P', 'S')\r |
| | 130 | \r |
| | 131 | /**\r |
| | 132 | Returns a pointer to the ARP_SERVICE_DATA structure from the input a.\r |
| | 133 | \r |
| | 134 | If the signatures matches, then a pointer to the data structure that contains \r |
| | 135 | a specified field of that data structure is returned.\r |
| | 136 | \r |
| | 137 | @param a Pointer to the field specified by ServiceBinding within \r |
| | 138 | a data structure of type ARP_SERVICE_DATA.\r |
| | 139 | \r |
| | 140 | **/\r |
| | 141 | #define ARP_SERVICE_DATA_FROM_THIS(a) \\r |
| | 142 | CR ( \\r |
| | 143 | (a), \\r |
| | 144 | ARP_SERVICE_DATA, \\r |
| | 145 | ServiceBinding, \\r |
| | 146 | ARP_SERVICE_DATA_SIGNATURE \\r |
| | 147 | )\r |
| | 148 | \r |
| | 149 | //\r |
| | 150 | // ARP service data structure.\r |
| | 151 | //\r |
| | 152 | struct _ARP_SERVICE_DATA {\r |
| | 153 | UINT32 Signature;\r |
| | 154 | EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r |
| | 155 | \r |
| | 156 | EFI_HANDLE MnpChildHandle;\r |
| | 157 | EFI_HANDLE ImageHandle;\r |
| | 158 | EFI_HANDLE ControllerHandle;\r |
| | 159 | \r |
| | 160 | EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r |
| | 161 | EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData;\r |
| | 162 | EFI_MANAGED_NETWORK_COMPLETION_TOKEN RxToken;\r |
| | 163 | \r |
| | 164 | EFI_SIMPLE_NETWORK_MODE SnpMode;\r |
| | 165 | \r |
| | 166 | UINTN ChildrenNumber;\r |
| | 167 | LIST_ENTRY ChildrenList;\r |
| | 168 | \r |
| | 169 | LIST_ENTRY PendingRequestTable;\r |
| | 170 | LIST_ENTRY DeniedCacheTable;\r |
| | 171 | LIST_ENTRY ResolvedCacheTable;\r |
| | 172 | \r |
| | 173 | EFI_EVENT PeriodicTimer;\r |
| | 174 | };\r |
| | 175 | \r |
| | 176 | //\r |
| | 177 | // User request context structure.\r |
| | 178 | //\r |
| | 179 | typedef struct {\r |
| | 180 | LIST_ENTRY List;\r |
| | 181 | ARP_INSTANCE_DATA *Instance;\r |
| | 182 | EFI_EVENT UserRequestEvent;\r |
| | 183 | VOID *UserHwAddrBuffer;\r |
| | 184 | } USER_REQUEST_CONTEXT;\r |
| | 185 | \r |
| | 186 | #define ARP_MAX_PROTOCOL_ADDRESS_LEN sizeof(EFI_IP_ADDRESS)\r |
| | 187 | #define ARP_MAX_HARDWARE_ADDRESS_LEN sizeof(EFI_MAC_ADDRESS)\r |
| | 188 | \r |
| | 189 | //\r |
| | 190 | // ARP address structure in an ARP packet.\r |
| | 191 | //\r |
| | 192 | typedef struct {\r |
| | 193 | UINT16 Type;\r |
| | 194 | UINT8 Length;\r |
| | 195 | UINT8 *AddressPtr;\r |
| | 196 | union {\r |
| | 197 | UINT8 ProtoAddress[ARP_MAX_PROTOCOL_ADDRESS_LEN];\r |
| | 198 | UINT8 HwAddress[ARP_MAX_HARDWARE_ADDRESS_LEN];\r |
| | 199 | } Buffer;\r |
| | 200 | } NET_ARP_ADDRESS;\r |
| | 201 | \r |
| | 202 | //\r |
| | 203 | // Enumeration for ARP address type.\r |
| | 204 | //\r |
| | 205 | typedef enum {\r |
| | 206 | Hardware,\r |
| | 207 | Protocol\r |
| | 208 | } ARP_ADDRESS_TYPE;\r |
| | 209 | \r |
| | 210 | //\r |
| | 211 | // ARP cache entry definition.\r |
| | 212 | //\r |
| | 213 | typedef struct {\r |
| | 214 | LIST_ENTRY List;\r |
| | 215 | \r |
| | 216 | UINT32 RetryCount;\r |
| | 217 | UINT32 DefaultDecayTime;\r |
| | 218 | UINT32 DecayTime;\r |
| | 219 | UINT32 NextRetryTime;\r |
| | 220 | \r |
| | 221 | NET_ARP_ADDRESS Addresses[2];\r |
| | 222 | \r |
| | 223 | LIST_ENTRY UserRequestList;\r |
| | 224 | } ARP_CACHE_ENTRY;\r |
| | 225 | \r |
| | 226 | /**\r |
| | 227 | This function is used to assign a station address to the ARP cache for this instance\r |
| | 228 | of the ARP driver.\r |
| | 229 | \r |
| | 230 | Each ARP instance has one station address. The EFI_ARP_PROTOCOL driver will \r |
| | 231 | respond to ARP requests that match this registered station address. A call to \r |
| | 232 | this function with the ConfigData field set to NULL will reset this ARP instance.\r |
| | 233 | \r |
| | 234 | Once a protocol type and station address have been assigned to this ARP instance, \r |
| | 235 | all the following ARP functions will use this information. Attempting to change \r |
| | 236 | the protocol type or station address to a configured ARP instance will result in errors.\r |
| | 237 | \r |
| | 238 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 239 | @param ConfigData Pointer to the EFI_ARP_CONFIG_DATA structure.\r |
| | 240 | \r |
| | 241 | @retval EFI_SUCCESS The new station address was successfully\r |
| | 242 | registered.\r |
| | 243 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 244 | This is NULL. SwAddressLength is zero when\r |
| | 245 | ConfigData is not NULL. StationAddress is NULL\r |
| | 246 | when ConfigData is not NULL.\r |
| | 247 | @retval EFI_ACCESS_DENIED The SwAddressType, SwAddressLength, or\r |
| | 248 | StationAddress is different from the one that is\r |
| | 249 | already registered.\r |
| | 250 | @retval EFI_OUT_OF_RESOURCES Storage for the new StationAddress could not be\r |
| | 251 | allocated.\r |
| | 252 | \r |
| | 253 | **/\r |
| | 254 | EFI_STATUS\r |
| | 255 | EFIAPI\r |
| | 256 | ArpConfigure (\r |
| | 257 | IN EFI_ARP_PROTOCOL *This,\r |
| | 258 | IN EFI_ARP_CONFIG_DATA *ConfigData OPTIONAL\r |
| | 259 | );\r |
| | 260 | \r |
| | 261 | /**\r |
| | 262 | This function is used to insert entries into the ARP cache.\r |
| | 263 | \r |
| | 264 | ARP cache entries are typically inserted and updated by network protocol drivers \r |
| | 265 | as network traffic is processed. Most ARP cache entries will time out and be \r |
| | 266 | deleted if the network traffic stops. ARP cache entries that were inserted \r |
| | 267 | by the Add() function may be static (will not time out) or dynamic (will time out).\r |
| | 268 | Default ARP cache timeout values are not covered in most network protocol \r |
| | 269 | specifications (although RFC 1122 comes pretty close) and will only be \r |
| | 270 | discussed in general in this specification. The timeout values that are \r |
| | 271 | used in the EFI Sample Implementation should be used only as a guideline. \r |
| | 272 | Final product implementations of the EFI network stack should be tuned for \r |
| | 273 | their expected network environments.\r |
| | 274 | \r |
| | 275 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 276 | @param DenyFlag Set to TRUE if this entry is a deny entry. Set to\r |
| | 277 | FALSE if this entry is a normal entry.\r |
| | 278 | @param TargetSwAddress Pointer to a protocol address to add (or deny).\r |
| | 279 | May be set to NULL if DenyFlag is TRUE.\r |
| | 280 | @param TargetHwAddress Pointer to a hardware address to add (or deny).\r |
| | 281 | May be set to NULL if DenyFlag is TRUE.\r |
| | 282 | @param TimeoutValue Time in 100-ns units that this entry will remain\r |
| | 283 | in the ARP cache. A value of zero means that the\r |
| | 284 | entry is permanent. A nonzero value will override\r |
| | 285 | the one given by Configure() if the entry to be\r |
| | 286 | added is a dynamic entry.\r |
| | 287 | @param Overwrite If TRUE, the matching cache entry will be\r |
| | 288 | overwritten with the supplied parameters. If\r |
| | 289 | FALSE, EFI_ACCESS_DENIED is returned if the\r |
| | 290 | corresponding cache entry already exists.\r |
| | 291 | \r |
| | 292 | @retval EFI_SUCCESS The entry has been added or updated.\r |
| | 293 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 294 | This is NULL. DenyFlag is FALSE and\r |
| | 295 | TargetHwAddress is NULL. DenyFlag is FALSE and\r |
| | 296 | TargetSwAddress is NULL. TargetHwAddress is NULL\r |
| | 297 | and TargetSwAddress is NULL. Both TargetSwAddress\r |
| | 298 | and TargetHwAddress are not NULL when DenyFlag is\r |
| | 299 | TRUE.\r |
| | 300 | @retval EFI_OUT_OF_RESOURCES The new ARP cache entry could not be allocated.\r |
| | 301 | @retval EFI_ACCESS_DENIED The ARP cache entry already exists and Overwrite\r |
| | 302 | is not true.\r |
| | 303 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 304 | \r |
| | 305 | **/\r |
| | 306 | EFI_STATUS\r |
| | 307 | EFIAPI\r |
| | 308 | ArpAdd (\r |
| | 309 | IN EFI_ARP_PROTOCOL *This,\r |
| | 310 | IN BOOLEAN DenyFlag,\r |
| | 311 | IN VOID *TargetSwAddress OPTIONAL,\r |
| | 312 | IN VOID *TargetHwAddress OPTIONAL,\r |
| | 313 | IN UINT32 TimeoutValue,\r |
| | 314 | IN BOOLEAN Overwrite\r |
| | 315 | );\r |
| | 316 | \r |
| | 317 | /**\r |
| | 318 | This function searches the ARP cache for matching entries and allocates a buffer into\r |
| | 319 | which those entries are copied.\r |
| | 320 | \r |
| | 321 | The first part of the allocated buffer is EFI_ARP_FIND_DATA, following which \r |
| | 322 | are protocol address pairs and hardware address pairs.\r |
| | 323 | When finding a specific protocol address (BySwAddress is TRUE and AddressBuffer \r |
| | 324 | is not NULL), the ARP cache timeout for the found entry is reset if Refresh is \r |
| | 325 | set to TRUE. If the found ARP cache entry is a permanent entry, it is not \r |
| | 326 | affected by Refresh.\r |
| | 327 | \r |
| | 328 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 329 | @param BySwAddress Set to TRUE to look for matching software protocol\r |
| | 330 | addresses. Set to FALSE to look for matching\r |
| | 331 | hardware protocol addresses.\r |
| | 332 | @param AddressBuffer Pointer to address buffer. Set to NULL to match\r |
| | 333 | all addresses.\r |
| | 334 | @param EntryLength The size of an entry in the entries buffer.\r |
| | 335 | @param EntryCount The number of ARP cache entries that are found by\r |
| | 336 | the specified criteria.\r |
| | 337 | @param Entries Pointer to the buffer that will receive the ARP\r |
| | 338 | cache entries.\r |
| | 339 | @param Refresh Set to TRUE to refresh the timeout value of the\r |
| | 340 | matching ARP cache entry.\r |
| | 341 | \r |
| | 342 | @retval EFI_SUCCESS The requested ARP cache entries were copied into\r |
| | 343 | the buffer.\r |
| | 344 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 345 | This is NULL. Both EntryCount and EntryLength are\r |
| | 346 | NULL, when Refresh is FALSE.\r |
| | 347 | @retval EFI_NOT_FOUND No matching entries were found.\r |
| | 348 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 349 | \r |
| | 350 | **/\r |
| | 351 | EFI_STATUS\r |
| | 352 | EFIAPI\r |
| | 353 | ArpFind (\r |
| | 354 | IN EFI_ARP_PROTOCOL *This,\r |
| | 355 | IN BOOLEAN BySwAddress,\r |
| | 356 | IN VOID *AddressBuffer OPTIONAL,\r |
| | 357 | OUT UINT32 *EntryLength OPTIONAL,\r |
| | 358 | OUT UINT32 *EntryCount OPTIONAL,\r |
| | 359 | OUT EFI_ARP_FIND_DATA **Entries OPTIONAL,\r |
| | 360 | IN BOOLEAN Refresh\r |
| | 361 | );\r |
| | 362 | \r |
| | 363 | /**\r |
| | 364 | This function removes specified ARP cache entries.\r |
| | 365 | \r |
| | 366 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 367 | @param BySwAddress Set to TRUE to delete matching protocol addresses.\r |
| | 368 | Set to FALSE to delete matching hardware\r |
| | 369 | addresses.\r |
| | 370 | @param AddressBuffer Pointer to the address buffer that is used as a\r |
| | 371 | key to look for the cache entry. Set to NULL to\r |
| | 372 | delete all entries.\r |
| | 373 | \r |
| | 374 | @retval EFI_SUCCESS The entry was removed from the ARP cache.\r |
| | 375 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| | 376 | @retval EFI_NOT_FOUND The specified deletion key was not found.\r |
| | 377 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 378 | \r |
| | 379 | **/\r |
| | 380 | EFI_STATUS\r |
| | 381 | EFIAPI\r |
| | 382 | ArpDelete (\r |
| | 383 | IN EFI_ARP_PROTOCOL *This,\r |
| | 384 | IN BOOLEAN BySwAddress,\r |
| | 385 | IN VOID *AddressBuffer OPTIONAL\r |
| | 386 | );\r |
| | 387 | \r |
| | 388 | /**\r |
| | 389 | This function delete all dynamic entries from the ARP cache that match the specified\r |
| | 390 | software protocol type.\r |
| | 391 | \r |
| | 392 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 393 | \r |
| | 394 | @retval EFI_SUCCESS The cache has been flushed.\r |
| | 395 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| | 396 | @retval EFI_NOT_FOUND There are no matching dynamic cache entries.\r |
| | 397 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 398 | \r |
| | 399 | **/\r |
| | 400 | EFI_STATUS\r |
| | 401 | EFIAPI\r |
| | 402 | ArpFlush (\r |
| | 403 | IN EFI_ARP_PROTOCOL *This\r |
| | 404 | );\r |
| | 405 | \r |
| | 406 | /**\r |
| | 407 | This function tries to resolve the TargetSwAddress and optionally returns a\r |
| | 408 | TargetHwAddress if it already exists in the ARP cache.\r |
| | 409 | \r |
| | 410 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 411 | @param TargetSwAddress Pointer to the protocol address to resolve.\r |
| | 412 | @param ResolvedEvent Pointer to the event that will be signaled when\r |
| | 413 | the address is resolved or some error occurs.\r |
| | 414 | @param TargetHwAddress Pointer to the buffer for the resolved hardware\r |
| | 415 | address in network byte order.\r |
| | 416 | \r |
| | 417 | @retval EFI_SUCCESS The data is copied from the ARP cache into the\r |
| | 418 | TargetHwAddress buffer.\r |
| | 419 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 420 | This is NULL. TargetHwAddress is NULL.\r |
| | 421 | @retval EFI_ACCESS_DENIED The requested address is not present in the normal\r |
| | 422 | ARP cache but is present in the deny address list.\r |
| | 423 | Outgoing traffic to that address is forbidden.\r |
| | 424 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 425 | @retval EFI_NOT_READY The request has been started and is not finished.\r |
| | 426 | \r |
| | 427 | **/\r |
| | 428 | EFI_STATUS\r |
| | 429 | EFIAPI\r |
| | 430 | ArpRequest (\r |
| | 431 | IN EFI_ARP_PROTOCOL *This,\r |
| | 432 | IN VOID *TargetSwAddress OPTIONAL,\r |
| | 433 | IN EFI_EVENT ResolvedEvent OPTIONAL,\r |
| | 434 | OUT VOID *TargetHwAddress\r |
| | 435 | );\r |
| | 436 | \r |
| | 437 | /**\r |
| | 438 | This function aborts the previous ARP request (identified by This, TargetSwAddress\r |
| | 439 | and ResolvedEvent) that is issued by EFI_ARP_PROTOCOL.Request().\r |
| | 440 | \r |
| | 441 | If the request is in the internal ARP request queue, the request is aborted \r |
| | 442 | immediately and its ResolvedEvent is signaled. Only an asynchronous address \r |
| | 443 | request needs to be canceled. If TargeSwAddress and ResolveEvent are both \r |
| | 444 | NULL, all the pending asynchronous requests that have been issued by This \r |
| | 445 | instance will be cancelled and their corresponding events will be signaled.\r |
| | 446 | \r |
| | 447 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r |
| | 448 | @param TargetSwAddress Pointer to the protocol address in previous\r |
| | 449 | request session.\r |
| | 450 | @param ResolvedEvent Pointer to the event that is used as the\r |
| | 451 | notification event in previous request session.\r |
| | 452 | \r |
| | 453 | @retval EFI_SUCCESS The pending request session(s) is/are aborted and\r |
| | 454 | corresponding event(s) is/are signaled.\r |
| | 455 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 456 | This is NULL. TargetSwAddress is not NULL and\r |
| | 457 | ResolvedEvent is NULL. TargetSwAddress is NULL and\r |
| | 458 | ResolvedEvent is not NULL.\r |
| | 459 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r |
| | 460 | @retval EFI_NOT_FOUND The request is not issued by\r |
| | 461 | EFI_ARP_PROTOCOL.Request().\r |
| | 462 | \r |
| | 463 | **/\r |
| | 464 | EFI_STATUS\r |
| | 465 | EFIAPI\r |
| | 466 | ArpCancel (\r |
| | 467 | IN EFI_ARP_PROTOCOL *This,\r |
| | 468 | IN VOID *TargetSwAddress OPTIONAL,\r |
| | 469 | IN EFI_EVENT ResolvedEvent OPTIONAL\r |
| | 470 | );\r |
| | 471 | \r |
| | 472 | /**\r |
| | 473 | Configure the instance using the ConfigData. ConfigData is already validated.\r |
| | 474 | \r |
| | 475 | @param[in] Instance Pointer to the instance context data to be\r |
| | 476 | configured.\r |
| | 477 | @param[in] ConfigData Pointer to the configuration data used to\r |
| | 478 | configure the instance.\r |
| | 479 | \r |
| | 480 | @retval EFI_SUCCESS The instance is configured with the ConfigData.\r |
| | 481 | @retval EFI_ACCESS_DENIED The instance is already configured and the\r |
| | 482 | ConfigData tries to reset some unchangeable\r |
| | 483 | fields.\r |
| | 484 | @retval EFI_INVALID_PARAMETER The ConfigData provides a non-unicast IPv4 address\r |
| | 485 | when the SwAddressType is IPv4.\r |
| | 486 | @retval EFI_OUT_OF_RESOURCES The instance fails to configure due to memory\r |
| | 487 | limitation.\r |
| | 488 | \r |
| | 489 | **/\r |
| | 490 | EFI_STATUS\r |
| | 491 | ArpConfigureInstance (\r |
| | 492 | IN ARP_INSTANCE_DATA *Instance,\r |
| | 493 | IN EFI_ARP_CONFIG_DATA *ConfigData OPTIONAL\r |
| | 494 | );\r |
| | 495 | \r |
| | 496 | /**\r |
| | 497 | Find the CacheEntry, using ProtocolAddress or HardwareAddress or both, as the keyword,\r |
| | 498 | in the DeniedCacheTable.\r |
| | 499 | \r |
| | 500 | @param[in] ArpService Pointer to the arp service context data.\r |
| | 501 | @param[in] ProtocolAddress Pointer to the protocol address.\r |
| | 502 | @param[in] HardwareAddress Pointer to the hardware address.\r |
| | 503 | \r |
| | 504 | @return Pointer to the matched cache entry, if NULL no match is found.\r |
| | 505 | \r |
| | 506 | **/\r |
| | 507 | ARP_CACHE_ENTRY *\r |
| | 508 | ArpFindDeniedCacheEntry (\r |
| | 509 | IN ARP_SERVICE_DATA *ArpService,\r |
| | 510 | IN NET_ARP_ADDRESS *ProtocolAddress OPTIONAL,\r |
| | 511 | IN NET_ARP_ADDRESS *HardwareAddress OPTIONAL\r |
| | 512 | );\r |
| | 513 | \r |
| | 514 | /**\r |
| | 515 | Find the CacheEntry which matches the requirements in the specified CacheTable.\r |
| | 516 | \r |
| | 517 | @param[in] CacheTable Pointer to the arp cache table.\r |
| | 518 | @param[in] StartEntry Pointer to the start entry this search begins with\r |
| | 519 | in the cache table.\r |
| | 520 | @param[in] FindOpType The search type.\r |
| | 521 | @param[in] ProtocolAddress Pointer to the protocol address to match.\r |
| | 522 | @param[in] HardwareAddress Pointer to the hardware address to match.\r |
| | 523 | \r |
| | 524 | @return Pointer to the matched arp cache entry, if NULL, no match is found.\r |
| | 525 | \r |
| | 526 | **/\r |
| | 527 | ARP_CACHE_ENTRY *\r |
| | 528 | ArpFindNextCacheEntryInTable (\r |
| | 529 | IN LIST_ENTRY *CacheTable,\r |
| | 530 | IN LIST_ENTRY *StartEntry,\r |
| | 531 | IN FIND_OPTYPE FindOpType,\r |
| | 532 | IN NET_ARP_ADDRESS *ProtocolAddress OPTIONAL,\r |
| | 533 | IN NET_ARP_ADDRESS *HardwareAddress OPTIONAL\r |
| | 534 | );\r |
| | 535 | \r |
| | 536 | /**\r |
| | 537 | Allocate a cache entry and initialize it.\r |
| | 538 | \r |
| | 539 | @param[in] Instance Pointer to the instance context data.\r |
| | 540 | \r |
| | 541 | @return Pointer to the new created cache entry.\r |
| | 542 | \r |
| | 543 | **/\r |
| | 544 | ARP_CACHE_ENTRY *\r |
| | 545 | ArpAllocCacheEntry (\r |
| | 546 | IN ARP_INSTANCE_DATA *Instance\r |
| | 547 | );\r |
| | 548 | \r |
| | 549 | /**\r |
| | 550 | Fill the addresses in the CacheEntry using the information passed in by\r |
| | 551 | HwAddr and SwAddr.\r |
| | 552 | \r |
| | 553 | @param[in] CacheEntry Pointer to the cache entry.\r |
| | 554 | @param[in] HwAddr Pointer to the software address.\r |
| | 555 | @param[in] SwAddr Pointer to the hardware address.\r |
| | 556 | \r |
| | 557 | @return None.\r |
| | 558 | \r |
| | 559 | **/\r |
| | 560 | VOID\r |
| | 561 | ArpFillAddressInCacheEntry (\r |
| | 562 | IN ARP_CACHE_ENTRY *CacheEntry,\r |
| | 563 | IN NET_ARP_ADDRESS *HwAddr OPTIONAL,\r |
| | 564 | IN NET_ARP_ADDRESS *SwAddr OPTIONAL\r |
| | 565 | );\r |
| | 566 | \r |
| | 567 | /**\r |
| | 568 | Turn the CacheEntry into the resolved status.\r |
| | 569 | \r |
| | 570 | @param[in] CacheEntry Pointer to the resolved cache entry.\r |
| | 571 | @param[in] Instance Pointer to the instance context data.\r |
| | 572 | @param[in] UserEvent Pointer to the UserEvent to notify.\r |
| | 573 | \r |
| | 574 | @return The count of notifications sent to the instance.\r |
| | 575 | \r |
| | 576 | **/\r |
| | 577 | UINTN\r |
| | 578 | ArpAddressResolved (\r |
| | 579 | IN ARP_CACHE_ENTRY *CacheEntry,\r |
| | 580 | IN ARP_INSTANCE_DATA *Instance OPTIONAL,\r |
| | 581 | IN EFI_EVENT UserEvent OPTIONAL\r |
| | 582 | );\r |
| | 583 | \r |
| | 584 | /**\r |
| | 585 | Delete cache entries in all the cache tables.\r |
| | 586 | \r |
| | 587 | @param[in] Instance Pointer to the instance context data.\r |
| | 588 | @param[in] BySwAddress Delete the cache entry by software address or by\r |
| | 589 | hardware address.\r |
| | 590 | @param[in] AddressBuffer Pointer to the buffer containing the address to\r |
| | 591 | match for the deletion.\r |
| | 592 | @param[in] Force This deletion is forced or not.\r |
| | 593 | \r |
| | 594 | @return The count of the deleted cache entries.\r |
| | 595 | \r |
| | 596 | **/\r |
| | 597 | UINTN\r |
| | 598 | ArpDeleteCacheEntry (\r |
| | 599 | IN ARP_INSTANCE_DATA *Instance,\r |
| | 600 | IN BOOLEAN BySwAddress,\r |
| | 601 | IN UINT8 *AddressBuffer OPTIONAL,\r |
| | 602 | IN BOOLEAN Force\r |
| | 603 | );\r |
| | 604 | \r |
| | 605 | /**\r |
| | 606 | Send out an arp frame using the CachEntry and the ArpOpCode.\r |
| | 607 | \r |
| | 608 | @param[in] Instance Pointer to the instance context data.\r |
| | 609 | @param[in] CacheEntry Pointer to the configuration data used to\r |
| | 610 | configure the instance.\r |
| | 611 | @param[in] ArpOpCode The opcode used to send out this Arp frame, either\r |
| | 612 | request or reply.\r |
| | 613 | \r |
| | 614 | @return None.\r |
| | 615 | \r |
| | 616 | **/\r |
| | 617 | VOID\r |
| | 618 | ArpSendFrame (\r |
| | 619 | IN ARP_INSTANCE_DATA *Instance,\r |
| | 620 | IN ARP_CACHE_ENTRY *CacheEntry,\r |
| | 621 | IN UINT16 ArpOpCode\r |
| | 622 | );\r |
| | 623 | \r |
| | 624 | /**\r |
| | 625 | Initialize the instance context data.\r |
| | 626 | \r |
| | 627 | @param[in] ArpService Pointer to the arp service context data this\r |
| | 628 | instance belongs to.\r |
| | 629 | @param[out] Instance Pointer to the instance context data.\r |
| | 630 | \r |
| | 631 | @return None.\r |
| | 632 | \r |
| | 633 | **/\r |
| | 634 | VOID\r |
| | 635 | ArpInitInstance (\r |
| | 636 | IN ARP_SERVICE_DATA *ArpService,\r |
| | 637 | OUT ARP_INSTANCE_DATA *Instance\r |
| | 638 | );\r |
| | 639 | \r |
| | 640 | /**\r |
| | 641 | Process the Arp packets received from Mnp, the procedure conforms to RFC826.\r |
| | 642 | \r |
| | 643 | @param[in] Context Pointer to the context data registerd to the\r |
| | 644 | Event.\r |
| | 645 | \r |
| | 646 | @return None.\r |
| | 647 | \r |
| | 648 | **/\r |
| | 649 | VOID\r |
| | 650 | EFIAPI\r |
| | 651 | ArpOnFrameRcvdDpc (\r |
| | 652 | IN VOID *Context\r |
| | 653 | );\r |
| | 654 | \r |
| | 655 | /**\r |
| | 656 | Queue ArpOnFrameRcvdDpc as a DPC at TPL_CALLBACK.\r |
| | 657 | \r |
| | 658 | @param[in] Event The Event this notify function registered to.\r |
| | 659 | @param[in] Context Pointer to the context data registerd to the\r |
| | 660 | Event.\r |
| | 661 | \r |
| | 662 | @return None.\r |
| | 663 | \r |
| | 664 | **/\r |
| | 665 | VOID\r |
| | 666 | EFIAPI\r |
| | 667 | ArpOnFrameRcvd (\r |
| | 668 | IN EFI_EVENT Event,\r |
| | 669 | IN VOID *Context\r |
| | 670 | );\r |
| | 671 | \r |
| | 672 | /**\r |
| | 673 | Process the already sent arp packets.\r |
| | 674 | \r |
| | 675 | @param[in] Context Pointer to the context data registerd to the\r |
| | 676 | Event.\r |
| | 677 | \r |
| | 678 | @return None.\r |
| | 679 | \r |
| | 680 | **/\r |
| | 681 | VOID\r |
| | 682 | EFIAPI\r |
| | 683 | ArpOnFrameSentDpc (\r |
| | 684 | IN VOID *Context\r |
| | 685 | );\r |
| | 686 | \r |
| | 687 | /**\r |
| | 688 | Request ArpOnFrameSentDpc as a DPC at TPL_CALLBACK.\r |
| | 689 | \r |
| | 690 | @param[in] Event The Event this notify function registered to.\r |
| | 691 | @param[in] Context Pointer to the context data registerd to the\r |
| | 692 | Event.\r |
| | 693 | \r |
| | 694 | @return None.\r |
| | 695 | \r |
| | 696 | **/\r |
| | 697 | VOID\r |
| | 698 | EFIAPI\r |
| | 699 | ArpOnFrameSent (\r |
| | 700 | IN EFI_EVENT Event,\r |
| | 701 | IN VOID *Context\r |
| | 702 | );\r |
| | 703 | \r |
| | 704 | /**\r |
| | 705 | Process the arp cache olding and drive the retrying arp requests.\r |
| | 706 | \r |
| | 707 | @param[in] Event The Event this notify function registered to.\r |
| | 708 | @param[in] Context Pointer to the context data registerd to the\r |
| | 709 | Event.\r |
| | 710 | \r |
| | 711 | @return None.\r |
| | 712 | \r |
| | 713 | **/\r |
| | 714 | VOID\r |
| | 715 | EFIAPI\r |
| | 716 | ArpTimerHandler (\r |
| | 717 | IN EFI_EVENT Event,\r |
| | 718 | IN VOID *Context\r |
| | 719 | );\r |
| | 720 | \r |
| | 721 | /**\r |
| | 722 | Cancel the arp request.\r |
| | 723 | \r |
| | 724 | @param[in] Instance Pointer to the instance context data.\r |
| | 725 | @param[in] TargetSwAddress Pointer to the buffer containing the target\r |
| | 726 | software address to match the arp request.\r |
| | 727 | @param[in] UserEvent The user event used to notify this request\r |
| | 728 | cancellation.\r |
| | 729 | \r |
| | 730 | @return The count of the cancelled requests.\r |
| | 731 | \r |
| | 732 | **/\r |
| | 733 | UINTN\r |
| | 734 | ArpCancelRequest (\r |
| | 735 | IN ARP_INSTANCE_DATA *Instance,\r |
| | 736 | IN VOID *TargetSwAddress OPTIONAL,\r |
| | 737 | IN EFI_EVENT UserEvent OPTIONAL\r |
| | 738 | );\r |
| | 739 | \r |
| | 740 | /**\r |
| | 741 | Find the cache entry in the cache table.\r |
| | 742 | \r |
| | 743 | @param[in] Instance Pointer to the instance context data.\r |
| | 744 | @param[in] BySwAddress Set to TRUE to look for matching software protocol\r |
| | 745 | addresses. Set to FALSE to look for matching\r |
| | 746 | hardware protocol addresses.\r |
| | 747 | @param[in] AddressBuffer Pointer to address buffer. Set to NULL to match\r |
| | 748 | all addresses.\r |
| | 749 | @param[out] EntryLength The size of an entry in the entries buffer.\r |
| | 750 | @param[out] EntryCount The number of ARP cache entries that are found by\r |
| | 751 | the specified criteria.\r |
| | 752 | @param[out] Entries Pointer to the buffer that will receive the ARP\r |
| | 753 | cache entries.\r |
| | 754 | @param[in] Refresh Set to TRUE to refresh the timeout value of the\r |
| | 755 | matching ARP cache entry.\r |
| | 756 | \r |
| | 757 | @retval EFI_SUCCESS The requested ARP cache entries are copied into\r |
| | 758 | the buffer.\r |
| | 759 | @retval EFI_NOT_FOUND No matching entries found.\r |
| | 760 | @retval EFI_OUT_OF_RESOURCE There is a memory allocation failure.\r |
| | 761 | \r |
| | 762 | **/\r |
| | 763 | EFI_STATUS\r |
| | 764 | ArpFindCacheEntry (\r |
| | 765 | IN ARP_INSTANCE_DATA *Instance,\r |
| | 766 | IN BOOLEAN BySwAddress,\r |
| | 767 | IN VOID *AddressBuffer OPTIONAL,\r |
| | 768 | OUT UINT32 *EntryLength OPTIONAL,\r |
| | 769 | OUT UINT32 *EntryCount OPTIONAL,\r |
| | 770 | OUT EFI_ARP_FIND_DATA **Entries OPTIONAL,\r |
| | 771 | IN BOOLEAN Refresh\r |
| | 772 | );\r |
| | 773 | \r |
| | 774 | #endif\r |
projects / mirror_edk2.git / blame_incremental