| | 1 | /** @file\r |
| | 2 | This file defines the EFI IPv4 (Internet Protocol version 4)\r |
| | 3 | Protocol interface. It is split into the following three main\r |
| | 4 | sections:\r |
| | 5 | - EFI IPv4 Service Binding Protocol\r |
| | 6 | - EFI IPv4 Variable (deprecated in UEFI 2.4B)\r |
| | 7 | - EFI IPv4 Protocol.\r |
| | 8 | The EFI IPv4 Protocol provides basic network IPv4 packet I/O services,\r |
| | 9 | which includes support foR a subset of the Internet Control Message\r |
| | 10 | Protocol (ICMP) and may include support for the Internet Group Management\r |
| | 11 | Protocol (IGMP).\r |
| | 12 | \r |
| | 13 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| | 14 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| | 15 | \r |
| | 16 | @par Revision Reference:\r |
| | 17 | This Protocol is introduced in UEFI Specification 2.0.\r |
| | 18 | \r |
| | 19 | **/\r |
| | 20 | \r |
| | 21 | #ifndef __EFI_IP4_PROTOCOL_H__\r |
| | 22 | #define __EFI_IP4_PROTOCOL_H__\r |
| | 23 | \r |
| | 24 | #include <Protocol/ManagedNetwork.h>\r |
| | 25 | \r |
| | 26 | #define EFI_IP4_SERVICE_BINDING_PROTOCOL_GUID \\r |
| | 27 | { \\r |
| | 28 | 0xc51711e7, 0xb4bf, 0x404a, {0xbf, 0xb8, 0x0a, 0x04, 0x8e, 0xf1, 0xff, 0xe4 } \\r |
| | 29 | }\r |
| | 30 | \r |
| | 31 | #define EFI_IP4_PROTOCOL_GUID \\r |
| | 32 | { \\r |
| | 33 | 0x41d94cd2, 0x35b6, 0x455a, {0x82, 0x58, 0xd4, 0xe5, 0x13, 0x34, 0xaa, 0xdd } \\r |
| | 34 | }\r |
| | 35 | \r |
| | 36 | typedef struct _EFI_IP4_PROTOCOL EFI_IP4_PROTOCOL;\r |
| | 37 | \r |
| | 38 | ///\r |
| | 39 | /// EFI_IP4_ADDRESS_PAIR is deprecated in the UEFI 2.4B and should not be used any more.\r |
| | 40 | /// The definition in here is only present to provide backwards compatability.\r |
| | 41 | ///\r |
| | 42 | typedef struct {\r |
| | 43 | EFI_HANDLE InstanceHandle;\r |
| | 44 | EFI_IPv4_ADDRESS Ip4Address;\r |
| | 45 | EFI_IPv4_ADDRESS SubnetMask;\r |
| | 46 | } EFI_IP4_ADDRESS_PAIR;\r |
| | 47 | \r |
| | 48 | ///\r |
| | 49 | /// EFI_IP4_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more.\r |
| | 50 | /// The definition in here is only present to provide backwards compatability.\r |
| | 51 | ///\r |
| | 52 | typedef struct {\r |
| | 53 | EFI_HANDLE DriverHandle;\r |
| | 54 | UINT32 AddressCount;\r |
| | 55 | EFI_IP4_ADDRESS_PAIR AddressPairs[1];\r |
| | 56 | } EFI_IP4_VARIABLE_DATA;\r |
| | 57 | \r |
| | 58 | typedef struct {\r |
| | 59 | ///\r |
| | 60 | /// The default IPv4 protocol packets to send and receive. Ignored\r |
| | 61 | /// when AcceptPromiscuous is TRUE.\r |
| | 62 | ///\r |
| | 63 | UINT8 DefaultProtocol;\r |
| | 64 | ///\r |
| | 65 | /// Set to TRUE to receive all IPv4 packets that get through the receive filters.\r |
| | 66 | /// Set to FALSE to receive only the DefaultProtocol IPv4\r |
| | 67 | /// packets that get through the receive filters.\r |
| | 68 | ///\r |
| | 69 | BOOLEAN AcceptAnyProtocol;\r |
| | 70 | ///\r |
| | 71 | /// Set to TRUE to receive ICMP error report packets. Ignored when\r |
| | 72 | /// AcceptPromiscuous or AcceptAnyProtocol is TRUE.\r |
| | 73 | ///\r |
| | 74 | BOOLEAN AcceptIcmpErrors;\r |
| | 75 | ///\r |
| | 76 | /// Set to TRUE to receive broadcast IPv4 packets. Ignored when\r |
| | 77 | /// AcceptPromiscuous is TRUE.\r |
| | 78 | /// Set to FALSE to stop receiving broadcast IPv4 packets.\r |
| | 79 | ///\r |
| | 80 | BOOLEAN AcceptBroadcast;\r |
| | 81 | ///\r |
| | 82 | /// Set to TRUE to receive all IPv4 packets that are sent to any\r |
| | 83 | /// hardware address or any protocol address.\r |
| | 84 | /// Set to FALSE to stop receiving all promiscuous IPv4 packets\r |
| | 85 | ///\r |
| | 86 | BOOLEAN AcceptPromiscuous;\r |
| | 87 | ///\r |
| | 88 | /// Set to TRUE to use the default IPv4 address and default routing table.\r |
| | 89 | ///\r |
| | 90 | BOOLEAN UseDefaultAddress;\r |
| | 91 | ///\r |
| | 92 | /// The station IPv4 address that will be assigned to this EFI IPv4Protocol instance.\r |
| | 93 | ///\r |
| | 94 | EFI_IPv4_ADDRESS StationAddress;\r |
| | 95 | ///\r |
| | 96 | /// The subnet address mask that is associated with the station address.\r |
| | 97 | ///\r |
| | 98 | EFI_IPv4_ADDRESS SubnetMask;\r |
| | 99 | ///\r |
| | 100 | /// TypeOfService field in transmitted IPv4 packets.\r |
| | 101 | ///\r |
| | 102 | UINT8 TypeOfService;\r |
| | 103 | ///\r |
| | 104 | /// TimeToLive field in transmitted IPv4 packets.\r |
| | 105 | ///\r |
| | 106 | UINT8 TimeToLive;\r |
| | 107 | ///\r |
| | 108 | /// State of the DoNotFragment bit in transmitted IPv4 packets.\r |
| | 109 | ///\r |
| | 110 | BOOLEAN DoNotFragment;\r |
| | 111 | ///\r |
| | 112 | /// Set to TRUE to send and receive unformatted packets. The other\r |
| | 113 | /// IPv4 receive filters are still applied. Fragmentation is disabled for RawData mode.\r |
| | 114 | ///\r |
| | 115 | BOOLEAN RawData;\r |
| | 116 | ///\r |
| | 117 | /// The timer timeout value (number of microseconds) for the\r |
| | 118 | /// receive timeout event to be associated with each assembled\r |
| | 119 | /// packet. Zero means do not drop assembled packets.\r |
| | 120 | ///\r |
| | 121 | UINT32 ReceiveTimeout;\r |
| | 122 | ///\r |
| | 123 | /// The timer timeout value (number of microseconds) for the\r |
| | 124 | /// transmit timeout event to be associated with each outgoing\r |
| | 125 | /// packet. Zero means do not drop outgoing packets.\r |
| | 126 | ///\r |
| | 127 | UINT32 TransmitTimeout;\r |
| | 128 | } EFI_IP4_CONFIG_DATA;\r |
| | 129 | \r |
| | 130 | \r |
| | 131 | typedef struct {\r |
| | 132 | EFI_IPv4_ADDRESS SubnetAddress;\r |
| | 133 | EFI_IPv4_ADDRESS SubnetMask;\r |
| | 134 | EFI_IPv4_ADDRESS GatewayAddress;\r |
| | 135 | } EFI_IP4_ROUTE_TABLE;\r |
| | 136 | \r |
| | 137 | typedef struct {\r |
| | 138 | UINT8 Type;\r |
| | 139 | UINT8 Code;\r |
| | 140 | } EFI_IP4_ICMP_TYPE;\r |
| | 141 | \r |
| | 142 | typedef struct {\r |
| | 143 | ///\r |
| | 144 | /// Set to TRUE after this EFI IPv4 Protocol instance has been successfully configured.\r |
| | 145 | ///\r |
| | 146 | BOOLEAN IsStarted;\r |
| | 147 | ///\r |
| | 148 | /// The maximum packet size, in bytes, of the packet which the upper layer driver could feed.\r |
| | 149 | ///\r |
| | 150 | UINT32 MaxPacketSize;\r |
| | 151 | ///\r |
| | 152 | /// Current configuration settings.\r |
| | 153 | ///\r |
| | 154 | EFI_IP4_CONFIG_DATA ConfigData;\r |
| | 155 | ///\r |
| | 156 | /// Set to TRUE when the EFI IPv4 Protocol instance has a station address and subnet mask.\r |
| | 157 | ///\r |
| | 158 | BOOLEAN IsConfigured;\r |
| | 159 | ///\r |
| | 160 | /// Number of joined multicast groups.\r |
| | 161 | ///\r |
| | 162 | UINT32 GroupCount;\r |
| | 163 | ///\r |
| | 164 | /// List of joined multicast group addresses.\r |
| | 165 | ///\r |
| | 166 | EFI_IPv4_ADDRESS *GroupTable;\r |
| | 167 | ///\r |
| | 168 | /// Number of entries in the routing table.\r |
| | 169 | ///\r |
| | 170 | UINT32 RouteCount;\r |
| | 171 | ///\r |
| | 172 | /// Routing table entries.\r |
| | 173 | ///\r |
| | 174 | EFI_IP4_ROUTE_TABLE *RouteTable;\r |
| | 175 | ///\r |
| | 176 | /// Number of entries in the supported ICMP types list.\r |
| | 177 | ///\r |
| | 178 | UINT32 IcmpTypeCount;\r |
| | 179 | ///\r |
| | 180 | /// Array of ICMP types and codes that are supported by this EFI IPv4 Protocol driver\r |
| | 181 | ///\r |
| | 182 | EFI_IP4_ICMP_TYPE *IcmpTypeList;\r |
| | 183 | } EFI_IP4_MODE_DATA;\r |
| | 184 | \r |
| | 185 | #pragma pack(1)\r |
| | 186 | \r |
| | 187 | typedef struct {\r |
| | 188 | UINT8 HeaderLength:4;\r |
| | 189 | UINT8 Version:4;\r |
| | 190 | UINT8 TypeOfService;\r |
| | 191 | UINT16 TotalLength;\r |
| | 192 | UINT16 Identification;\r |
| | 193 | UINT16 Fragmentation;\r |
| | 194 | UINT8 TimeToLive;\r |
| | 195 | UINT8 Protocol;\r |
| | 196 | UINT16 Checksum;\r |
| | 197 | EFI_IPv4_ADDRESS SourceAddress;\r |
| | 198 | EFI_IPv4_ADDRESS DestinationAddress;\r |
| | 199 | } EFI_IP4_HEADER;\r |
| | 200 | #pragma pack()\r |
| | 201 | \r |
| | 202 | \r |
| | 203 | typedef struct {\r |
| | 204 | UINT32 FragmentLength;\r |
| | 205 | VOID *FragmentBuffer;\r |
| | 206 | } EFI_IP4_FRAGMENT_DATA;\r |
| | 207 | \r |
| | 208 | \r |
| | 209 | typedef struct {\r |
| | 210 | EFI_TIME TimeStamp;\r |
| | 211 | EFI_EVENT RecycleSignal;\r |
| | 212 | UINT32 HeaderLength;\r |
| | 213 | EFI_IP4_HEADER *Header;\r |
| | 214 | UINT32 OptionsLength;\r |
| | 215 | VOID *Options;\r |
| | 216 | UINT32 DataLength;\r |
| | 217 | UINT32 FragmentCount;\r |
| | 218 | EFI_IP4_FRAGMENT_DATA FragmentTable[1];\r |
| | 219 | } EFI_IP4_RECEIVE_DATA;\r |
| | 220 | \r |
| | 221 | \r |
| | 222 | typedef struct {\r |
| | 223 | EFI_IPv4_ADDRESS SourceAddress;\r |
| | 224 | EFI_IPv4_ADDRESS GatewayAddress;\r |
| | 225 | UINT8 Protocol;\r |
| | 226 | UINT8 TypeOfService;\r |
| | 227 | UINT8 TimeToLive;\r |
| | 228 | BOOLEAN DoNotFragment;\r |
| | 229 | } EFI_IP4_OVERRIDE_DATA;\r |
| | 230 | \r |
| | 231 | typedef struct {\r |
| | 232 | EFI_IPv4_ADDRESS DestinationAddress;\r |
| | 233 | EFI_IP4_OVERRIDE_DATA *OverrideData; //OPTIONAL\r |
| | 234 | UINT32 OptionsLength; //OPTIONAL\r |
| | 235 | VOID *OptionsBuffer; //OPTIONAL\r |
| | 236 | UINT32 TotalDataLength;\r |
| | 237 | UINT32 FragmentCount;\r |
| | 238 | EFI_IP4_FRAGMENT_DATA FragmentTable[1];\r |
| | 239 | } EFI_IP4_TRANSMIT_DATA;\r |
| | 240 | \r |
| | 241 | typedef struct {\r |
| | 242 | ///\r |
| | 243 | /// This Event will be signaled after the Status field is updated\r |
| | 244 | /// by the EFI IPv4 Protocol driver. The type of Event must be\r |
| | 245 | /// EFI_NOTIFY_SIGNAL. The Task Priority Level (TPL) of\r |
| | 246 | /// Event must be lower than or equal to TPL_CALLBACK.\r |
| | 247 | ///\r |
| | 248 | EFI_EVENT Event;\r |
| | 249 | ///\r |
| | 250 | /// The status that is returned to the caller at the end of the operation\r |
| | 251 | /// to indicate whether this operation completed successfully.\r |
| | 252 | ///\r |
| | 253 | EFI_STATUS Status;\r |
| | 254 | union {\r |
| | 255 | ///\r |
| | 256 | /// When this token is used for receiving, RxData is a pointer to the EFI_IP4_RECEIVE_DATA.\r |
| | 257 | ///\r |
| | 258 | EFI_IP4_RECEIVE_DATA *RxData;\r |
| | 259 | ///\r |
| | 260 | /// When this token is used for transmitting, TxData is a pointer to the EFI_IP4_TRANSMIT_DATA.\r |
| | 261 | ///\r |
| | 262 | EFI_IP4_TRANSMIT_DATA *TxData;\r |
| | 263 | } Packet;\r |
| | 264 | } EFI_IP4_COMPLETION_TOKEN;\r |
| | 265 | \r |
| | 266 | /**\r |
| | 267 | Gets the current operational settings for this instance of the EFI IPv4 Protocol driver.\r |
| | 268 | \r |
| | 269 | The GetModeData() function returns the current operational mode data for this\r |
| | 270 | driver instance. The data fields in EFI_IP4_MODE_DATA are read only. This\r |
| | 271 | function is used optionally to retrieve the operational mode data of underlying\r |
| | 272 | networks or drivers.\r |
| | 273 | \r |
| | 274 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 275 | @param Ip4ModeData The pointer to the EFI IPv4 Protocol mode data structure.\r |
| | 276 | @param MnpConfigData The pointer to the managed network configuration data structure.\r |
| | 277 | @param SnpModeData The pointer to the simple network mode data structure.\r |
| | 278 | \r |
| | 279 | @retval EFI_SUCCESS The operation completed successfully.\r |
| | 280 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| | 281 | @retval EFI_OUT_OF_RESOURCES The required mode data could not be allocated.\r |
| | 282 | \r |
| | 283 | **/\r |
| | 284 | typedef\r |
| | 285 | EFI_STATUS\r |
| | 286 | (EFIAPI *EFI_IP4_GET_MODE_DATA)(\r |
| | 287 | IN CONST EFI_IP4_PROTOCOL *This,\r |
| | 288 | OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,\r |
| | 289 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r |
| | 290 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r |
| | 291 | );\r |
| | 292 | \r |
| | 293 | /**\r |
| | 294 | Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.\r |
| | 295 | \r |
| | 296 | The Configure() function is used to set, change, or reset the operational\r |
| | 297 | parameters and filter settings for this EFI IPv4 Protocol instance. Until these\r |
| | 298 | parameters have been set, no network traffic can be sent or received by this\r |
| | 299 | instance. Once the parameters have been reset (by calling this function with\r |
| | 300 | IpConfigData set to NULL), no more traffic can be sent or received until these\r |
| | 301 | parameters have been set again. Each EFI IPv4 Protocol instance can be started\r |
| | 302 | and stopped independently of each other by enabling or disabling their receive\r |
| | 303 | filter settings with the Configure() function.\r |
| | 304 | \r |
| | 305 | When IpConfigData.UseDefaultAddress is set to FALSE, the new station address will\r |
| | 306 | be appended as an alias address into the addresses list in the EFI IPv4 Protocol\r |
| | 307 | driver. While set to TRUE, Configure() will trigger the EFI_IP4_CONFIG_PROTOCOL\r |
| | 308 | to retrieve the default IPv4 address if it is not available yet. Clients could\r |
| | 309 | frequently call GetModeData() to check the status to ensure that the default IPv4\r |
| | 310 | address is ready.\r |
| | 311 | \r |
| | 312 | If operational parameters are reset or changed, any pending transmit and receive\r |
| | 313 | requests will be cancelled. Their completion token status will be set to EFI_ABORTED\r |
| | 314 | and their events will be signaled.\r |
| | 315 | \r |
| | 316 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 317 | @param IpConfigData The pointer to the EFI IPv4 Protocol configuration data structure.\r |
| | 318 | \r |
| | 319 | @retval EFI_SUCCESS The driver instance was successfully opened.\r |
| | 320 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 321 | RARP, etc.) is not finished yet.\r |
| | 322 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 323 | This is NULL.\r |
| | 324 | IpConfigData.StationAddress is not a unicast IPv4 address.\r |
| | 325 | IpConfigData.SubnetMask is not a valid IPv4 subnet\r |
| | 326 | @retval EFI_UNSUPPORTED One or more of the following conditions is TRUE:\r |
| | 327 | A configuration protocol (DHCP, BOOTP, RARP, etc.) could\r |
| | 328 | not be located when clients choose to use the default IPv4\r |
| | 329 | address. This EFI IPv4 Protocol implementation does not\r |
| | 330 | support this requested filter or timeout setting.\r |
| | 331 | @retval EFI_OUT_OF_RESOURCES The EFI IPv4 Protocol driver instance data could not be allocated.\r |
| | 332 | @retval EFI_ALREADY_STARTED The interface is already open and must be stopped before the\r |
| | 333 | IPv4 address or subnet mask can be changed. The interface must\r |
| | 334 | also be stopped when switching to/from raw packet mode.\r |
| | 335 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The EFI IPv4\r |
| | 336 | Protocol driver instance is not opened.\r |
| | 337 | \r |
| | 338 | **/\r |
| | 339 | typedef\r |
| | 340 | EFI_STATUS\r |
| | 341 | (EFIAPI *EFI_IP4_CONFIGURE)(\r |
| | 342 | IN EFI_IP4_PROTOCOL *This,\r |
| | 343 | IN EFI_IP4_CONFIG_DATA *IpConfigData OPTIONAL\r |
| | 344 | );\r |
| | 345 | \r |
| | 346 | /**\r |
| | 347 | Joins and leaves multicast groups.\r |
| | 348 | \r |
| | 349 | The Groups() function is used to join and leave multicast group sessions. Joining\r |
| | 350 | a group will enable reception of matching multicast packets. Leaving a group will\r |
| | 351 | disable the multicast packet reception.\r |
| | 352 | \r |
| | 353 | If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.\r |
| | 354 | \r |
| | 355 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 356 | @param JoinFlag Set to TRUE to join the multicast group session and FALSE to leave.\r |
| | 357 | @param GroupAddress The pointer to the IPv4 multicast address.\r |
| | 358 | \r |
| | 359 | @retval EFI_SUCCESS The operation completed successfully.\r |
| | 360 | @retval EFI_INVALID_PARAMETER One or more of the following is TRUE:\r |
| | 361 | - This is NULL.\r |
| | 362 | - JoinFlag is TRUE and GroupAddress is NULL.\r |
| | 363 | - GroupAddress is not NULL and *GroupAddress is\r |
| | 364 | not a multicast IPv4 address.\r |
| | 365 | @retval EFI_NOT_STARTED This instance has not been started.\r |
| | 366 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 367 | RARP, etc.) is not finished yet.\r |
| | 368 | @retval EFI_OUT_OF_RESOURCES System resources could not be allocated.\r |
| | 369 | @retval EFI_UNSUPPORTED This EFI IPv4 Protocol implementation does not support multicast groups.\r |
| | 370 | @retval EFI_ALREADY_STARTED The group address is already in the group table (when\r |
| | 371 | JoinFlag is TRUE).\r |
| | 372 | @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is FALSE).\r |
| | 373 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| | 374 | \r |
| | 375 | **/\r |
| | 376 | typedef\r |
| | 377 | EFI_STATUS\r |
| | 378 | (EFIAPI *EFI_IP4_GROUPS)(\r |
| | 379 | IN EFI_IP4_PROTOCOL *This,\r |
| | 380 | IN BOOLEAN JoinFlag,\r |
| | 381 | IN EFI_IPv4_ADDRESS *GroupAddress OPTIONAL\r |
| | 382 | );\r |
| | 383 | \r |
| | 384 | /**\r |
| | 385 | Adds and deletes routing table entries.\r |
| | 386 | \r |
| | 387 | The Routes() function adds a route to or deletes a route from the routing table.\r |
| | 388 | \r |
| | 389 | Routes are determined by comparing the SubnetAddress with the destination IPv4\r |
| | 390 | address arithmetically AND-ed with the SubnetMask. The gateway address must be\r |
| | 391 | on the same subnet as the configured station address.\r |
| | 392 | \r |
| | 393 | The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.\r |
| | 394 | The default route matches all destination IPv4 addresses that do not match any\r |
| | 395 | other routes.\r |
| | 396 | \r |
| | 397 | A GatewayAddress that is zero is a nonroute. Packets are sent to the destination\r |
| | 398 | IP address if it can be found in the ARP cache or on the local subnet. One automatic\r |
| | 399 | nonroute entry will be inserted into the routing table for outgoing packets that\r |
| | 400 | are addressed to a local subnet (gateway address of 0.0.0.0).\r |
| | 401 | \r |
| | 402 | Each EFI IPv4 Protocol instance has its own independent routing table. Those EFI\r |
| | 403 | IPv4 Protocol instances that use the default IPv4 address will also have copies\r |
| | 404 | of the routing table that was provided by the EFI_IP4_CONFIG_PROTOCOL, and these\r |
| | 405 | copies will be updated whenever the EIF IPv4 Protocol driver reconfigures its\r |
| | 406 | instances. As a result, client modification to the routing table will be lost.\r |
| | 407 | \r |
| | 408 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 409 | @param DeleteRoute Set to TRUE to delete this route from the routing table. Set to\r |
| | 410 | FALSE to add this route to the routing table. SubnetAddress\r |
| | 411 | and SubnetMask are used as the key to each route entry.\r |
| | 412 | @param SubnetAddress The address of the subnet that needs to be routed.\r |
| | 413 | @param SubnetMask The subnet mask of SubnetAddress.\r |
| | 414 | @param GatewayAddress The unicast gateway IPv4 address for this route.\r |
| | 415 | \r |
| | 416 | @retval EFI_SUCCESS The operation completed successfully.\r |
| | 417 | @retval EFI_NOT_STARTED The driver instance has not been started.\r |
| | 418 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 419 | RARP, etc.) is not finished yet.\r |
| | 420 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 421 | - This is NULL.\r |
| | 422 | - SubnetAddress is NULL.\r |
| | 423 | - SubnetMask is NULL.\r |
| | 424 | - GatewayAddress is NULL.\r |
| | 425 | - *SubnetAddress is not a valid subnet address.\r |
| | 426 | - *SubnetMask is not a valid subnet mask.\r |
| | 427 | - *GatewayAddress is not a valid unicast IPv4 address.\r |
| | 428 | @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.\r |
| | 429 | @retval EFI_NOT_FOUND This route is not in the routing table (when DeleteRoute is TRUE).\r |
| | 430 | @retval EFI_ACCESS_DENIED The route is already defined in the routing table (when\r |
| | 431 | DeleteRoute is FALSE).\r |
| | 432 | \r |
| | 433 | **/\r |
| | 434 | typedef\r |
| | 435 | EFI_STATUS\r |
| | 436 | (EFIAPI *EFI_IP4_ROUTES)(\r |
| | 437 | IN EFI_IP4_PROTOCOL *This,\r |
| | 438 | IN BOOLEAN DeleteRoute,\r |
| | 439 | IN EFI_IPv4_ADDRESS *SubnetAddress,\r |
| | 440 | IN EFI_IPv4_ADDRESS *SubnetMask,\r |
| | 441 | IN EFI_IPv4_ADDRESS *GatewayAddress\r |
| | 442 | );\r |
| | 443 | \r |
| | 444 | /**\r |
| | 445 | Places outgoing data packets into the transmit queue.\r |
| | 446 | \r |
| | 447 | The Transmit() function places a sending request in the transmit queue of this\r |
| | 448 | EFI IPv4 Protocol instance. Whenever the packet in the token is sent out or some\r |
| | 449 | errors occur, the event in the token will be signaled and the status is updated.\r |
| | 450 | \r |
| | 451 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 452 | @param Token The pointer to the transmit token.\r |
| | 453 | \r |
| | 454 | @retval EFI_SUCCESS The data has been queued for transmission.\r |
| | 455 | @retval EFI_NOT_STARTED This instance has not been started.\r |
| | 456 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 457 | RARP, etc.) is not finished yet.\r |
| | 458 | @retval EFI_INVALID_PARAMETER One or more pameters are invalid.\r |
| | 459 | @retval EFI_ACCESS_DENIED The transmit completion token with the same Token.Event\r |
| | 460 | was already in the transmit queue.\r |
| | 461 | @retval EFI_NOT_READY The completion token could not be queued because the transmit\r |
| | 462 | queue is full.\r |
| | 463 | @retval EFI_NOT_FOUND Not route is found to destination address.\r |
| | 464 | @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.\r |
| | 465 | @retval EFI_BUFFER_TOO_SMALL Token.Packet.TxData.TotalDataLength is too\r |
| | 466 | short to transmit.\r |
| | 467 | @retval EFI_BAD_BUFFER_SIZE The length of the IPv4 header + option length + total data length is\r |
| | 468 | greater than MTU (or greater than the maximum packet size if\r |
| | 469 | Token.Packet.TxData.OverrideData.\r |
| | 470 | DoNotFragment is TRUE.)\r |
| | 471 | \r |
| | 472 | **/\r |
| | 473 | typedef\r |
| | 474 | EFI_STATUS\r |
| | 475 | (EFIAPI *EFI_IP4_TRANSMIT)(\r |
| | 476 | IN EFI_IP4_PROTOCOL *This,\r |
| | 477 | IN EFI_IP4_COMPLETION_TOKEN *Token\r |
| | 478 | );\r |
| | 479 | \r |
| | 480 | /**\r |
| | 481 | Places a receiving request into the receiving queue.\r |
| | 482 | \r |
| | 483 | The Receive() function places a completion token into the receive packet queue.\r |
| | 484 | This function is always asynchronous.\r |
| | 485 | \r |
| | 486 | The Token.Event field in the completion token must be filled in by the caller\r |
| | 487 | and cannot be NULL. When the receive operation completes, the EFI IPv4 Protocol\r |
| | 488 | driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event\r |
| | 489 | is signaled.\r |
| | 490 | \r |
| | 491 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 492 | @param Token The pointer to a token that is associated with the receive data descriptor.\r |
| | 493 | \r |
| | 494 | @retval EFI_SUCCESS The receive completion token was cached.\r |
| | 495 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r |
| | 496 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP, RARP, etc.)\r |
| | 497 | is not finished yet.\r |
| | 498 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| | 499 | - This is NULL.\r |
| | 500 | - Token is NULL.\r |
| | 501 | - Token.Event is NULL.\r |
| | 502 | @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system\r |
| | 503 | resources (usually memory).\r |
| | 504 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| | 505 | The EFI IPv4 Protocol instance has been reset to startup defaults.\r |
| | 506 | @retval EFI_ACCESS_DENIED The receive completion token with the same Token.Event was already\r |
| | 507 | in the receive queue.\r |
| | 508 | @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.\r |
| | 509 | @retval EFI_ICMP_ERROR An ICMP error packet was received.\r |
| | 510 | \r |
| | 511 | **/\r |
| | 512 | typedef\r |
| | 513 | EFI_STATUS\r |
| | 514 | (EFIAPI *EFI_IP4_RECEIVE)(\r |
| | 515 | IN EFI_IP4_PROTOCOL *This,\r |
| | 516 | IN EFI_IP4_COMPLETION_TOKEN *Token\r |
| | 517 | );\r |
| | 518 | \r |
| | 519 | /**\r |
| | 520 | Abort an asynchronous transmit or receive request.\r |
| | 521 | \r |
| | 522 | The Cancel() function is used to abort a pending transmit or receive request.\r |
| | 523 | If the token is in the transmit or receive request queues, after calling this\r |
| | 524 | function, Token->Status will be set to EFI_ABORTED and then Token->Event will\r |
| | 525 | be signaled. If the token is not in one of the queues, which usually means the\r |
| | 526 | asynchronous operation has completed, this function will not signal the token\r |
| | 527 | and EFI_NOT_FOUND is returned.\r |
| | 528 | \r |
| | 529 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 530 | @param Token The pointer to a token that has been issued by\r |
| | 531 | EFI_IP4_PROTOCOL.Transmit() or\r |
| | 532 | EFI_IP4_PROTOCOL.Receive(). If NULL, all pending\r |
| | 533 | tokens are aborted. Type EFI_IP4_COMPLETION_TOKEN is\r |
| | 534 | defined in EFI_IP4_PROTOCOL.Transmit().\r |
| | 535 | \r |
| | 536 | @retval EFI_SUCCESS The asynchronous I/O request was aborted and\r |
| | 537 | Token->Event was signaled. When Token is NULL, all\r |
| | 538 | pending requests were aborted and their events were signaled.\r |
| | 539 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| | 540 | @retval EFI_NOT_STARTED This instance has not been started.\r |
| | 541 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 542 | RARP, etc.) is not finished yet.\r |
| | 543 | @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was\r |
| | 544 | not found in the transmit or receive queue. It has either completed\r |
| | 545 | or was not issued by Transmit() and Receive().\r |
| | 546 | \r |
| | 547 | **/\r |
| | 548 | typedef\r |
| | 549 | EFI_STATUS\r |
| | 550 | (EFIAPI *EFI_IP4_CANCEL)(\r |
| | 551 | IN EFI_IP4_PROTOCOL *This,\r |
| | 552 | IN EFI_IP4_COMPLETION_TOKEN *Token OPTIONAL\r |
| | 553 | );\r |
| | 554 | \r |
| | 555 | /**\r |
| | 556 | Polls for incoming data packets and processes outgoing data packets.\r |
| | 557 | \r |
| | 558 | The Poll() function polls for incoming data packets and processes outgoing data\r |
| | 559 | packets. Network drivers and applications can call the EFI_IP4_PROTOCOL.Poll()\r |
| | 560 | function to increase the rate that data packets are moved between the communications\r |
| | 561 | device and the transmit and receive queues.\r |
| | 562 | \r |
| | 563 | In some systems the periodic timer event may not poll the underlying communications\r |
| | 564 | device fast enough to transmit and/or receive all data packets without missing\r |
| | 565 | incoming packets or dropping outgoing packets. Drivers and applications that are\r |
| | 566 | experiencing packet loss should try calling the EFI_IP4_PROTOCOL.Poll() function\r |
| | 567 | more often.\r |
| | 568 | \r |
| | 569 | @param This The pointer to the EFI_IP4_PROTOCOL instance.\r |
| | 570 | \r |
| | 571 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r |
| | 572 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r |
| | 573 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| | 574 | RARP, etc.) is not finished yet.\r |
| | 575 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| | 576 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| | 577 | @retval EFI_NOT_READY No incoming or outgoing data is processed.\r |
| | 578 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue.\r |
| | 579 | Consider increasing the polling rate.\r |
| | 580 | \r |
| | 581 | **/\r |
| | 582 | typedef\r |
| | 583 | EFI_STATUS\r |
| | 584 | (EFIAPI *EFI_IP4_POLL)(\r |
| | 585 | IN EFI_IP4_PROTOCOL *This\r |
| | 586 | );\r |
| | 587 | \r |
| | 588 | ///\r |
| | 589 | /// The EFI IPv4 Protocol implements a simple packet-oriented interface that can be\r |
| | 590 | /// used by drivers, daemons, and applications to transmit and receive network packets.\r |
| | 591 | ///\r |
| | 592 | struct _EFI_IP4_PROTOCOL {\r |
| | 593 | EFI_IP4_GET_MODE_DATA GetModeData;\r |
| | 594 | EFI_IP4_CONFIGURE Configure;\r |
| | 595 | EFI_IP4_GROUPS Groups;\r |
| | 596 | EFI_IP4_ROUTES Routes;\r |
| | 597 | EFI_IP4_TRANSMIT Transmit;\r |
| | 598 | EFI_IP4_RECEIVE Receive;\r |
| | 599 | EFI_IP4_CANCEL Cancel;\r |
| | 600 | EFI_IP4_POLL Poll;\r |
| | 601 | };\r |
| | 602 | \r |
| | 603 | extern EFI_GUID gEfiIp4ServiceBindingProtocolGuid;\r |
| | 604 | extern EFI_GUID gEfiIp4ProtocolGuid;\r |
| | 605 | \r |
| | 606 | #endif\r |
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