| 83cbd279 |
1 | /** @file\r |
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2 | EFI UDPv4 protocol implementation.\r |
| 3 | \r |
| d551cc64 |
4 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r |
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5 | This program and the accompanying materials\r |
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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\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 |
| 83cbd279 |
13 | **/\r |
| 14 | \r |
| 15 | #ifndef _UDP4_IMPL_H_\r |
| 16 | #define _UDP4_IMPL_H_\r |
| 17 | \r |
| 2517435c |
18 | #include <Uefi.h>\r |
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19 | \r |
| eaf343ff |
20 | #include <Protocol/Ip4.h>\r |
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21 | #include <Protocol/Udp4.h>\r |
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22 | \r |
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23 | #include <Library/IpIoLib.h>\r |
| 24 | #include <Library/DebugLib.h>\r |
| 25 | #include <Library/UefiRuntimeServicesTableLib.h>\r |
| 26 | #include <Library/UefiDriverEntryPoint.h>\r |
| 27 | #include <Library/UefiBootServicesTableLib.h>\r |
| 28 | #include <Library/BaseLib.h>\r |
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29 | #include <Library/UefiLib.h>\r |
| 30 | #include <Library/BaseMemoryLib.h>\r |
| 31 | #include <Library/MemoryAllocationLib.h>\r |
| 19873973 |
32 | #include <Library/TimerLib.h>\r |
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33 | #include <Library/DpcLib.h>\r |
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34 | #include <Library/PrintLib.h>\r |
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35 | \r |
| 36 | #include "Udp4Driver.h"\r |
| 37 | \r |
| 38 | \r |
| 39 | extern EFI_COMPONENT_NAME_PROTOCOL gUdp4ComponentName;\r |
| 40 | extern EFI_COMPONENT_NAME2_PROTOCOL gUdp4ComponentName2;\r |
| 216f7970 |
41 | extern EFI_UNICODE_STRING_TABLE *gUdpControllerNameTable;\r |
| 83cbd279 |
42 | extern EFI_SERVICE_BINDING_PROTOCOL mUdp4ServiceBinding;\r |
| 43 | extern EFI_UDP4_PROTOCOL mUdp4Protocol;\r |
| 44 | extern UINT16 mUdp4RandomPort;\r |
| 45 | \r |
| 46 | #define ICMP_ERROR_PACKET_LENGTH 8\r |
| 47 | \r |
| aeddd425 |
48 | #define UDP4_TIMEOUT_INTERVAL (50 * TICKS_PER_MS) // 50 milliseconds\r |
| 83cbd279 |
49 | \r |
| fb115c61 |
50 | #define UDP4_HEADER_SIZE sizeof (EFI_UDP_HEADER)\r |
| 83cbd279 |
51 | #define UDP4_MAX_DATA_SIZE 65507\r |
| 52 | \r |
| 53 | #define UDP4_PORT_KNOWN 1024\r |
| 54 | \r |
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55 | #define UDP4_SERVICE_DATA_SIGNATURE SIGNATURE_32('U', 'd', 'p', '4')\r |
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56 | \r |
| 57 | #define UDP4_SERVICE_DATA_FROM_THIS(a) \\r |
| 58 | CR ( \\r |
| 59 | (a), \\r |
| 60 | UDP4_SERVICE_DATA, \\r |
| 61 | ServiceBinding, \\r |
| 62 | UDP4_SERVICE_DATA_SIGNATURE \\r |
| 63 | )\r |
| 64 | \r |
| 65 | typedef struct _UDP4_SERVICE_DATA_ {\r |
| 66 | UINT32 Signature;\r |
| 67 | EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r |
| 68 | EFI_HANDLE ImageHandle;\r |
| 69 | EFI_HANDLE ControllerHandle;\r |
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70 | LIST_ENTRY ChildrenList;\r |
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71 | UINTN ChildrenNumber;\r |
| 72 | IP_IO *IpIo;\r |
| 73 | \r |
| 74 | EFI_EVENT TimeoutEvent;\r |
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75 | } UDP4_SERVICE_DATA;\r |
| 76 | \r |
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77 | #define UDP4_INSTANCE_DATA_SIGNATURE SIGNATURE_32('U', 'd', 'p', 'I')\r |
| 83cbd279 |
78 | \r |
| 79 | #define UDP4_INSTANCE_DATA_FROM_THIS(a) \\r |
| 80 | CR ( \\r |
| 81 | (a), \\r |
| 82 | UDP4_INSTANCE_DATA, \\r |
| 83 | Udp4Proto, \\r |
| 84 | UDP4_INSTANCE_DATA_SIGNATURE \\r |
| 85 | )\r |
| 86 | \r |
| 87 | typedef struct _UDP4_INSTANCE_DATA_ {\r |
| 88 | UINT32 Signature;\r |
| e48e37fc |
89 | LIST_ENTRY Link;\r |
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90 | \r |
| 91 | UDP4_SERVICE_DATA *Udp4Service;\r |
| 92 | EFI_UDP4_PROTOCOL Udp4Proto;\r |
| 93 | EFI_UDP4_CONFIG_DATA ConfigData;\r |
| 94 | EFI_HANDLE ChildHandle;\r |
| 95 | BOOLEAN Configured;\r |
| 96 | BOOLEAN IsNoMapping;\r |
| 97 | \r |
| 98 | NET_MAP TxTokens;\r |
| 99 | NET_MAP RxTokens;\r |
| 100 | \r |
| 101 | NET_MAP McastIps;\r |
| 102 | \r |
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103 | LIST_ENTRY RcvdDgramQue;\r |
| 104 | LIST_ENTRY DeliveredDgramQue;\r |
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105 | \r |
| 106 | UINT16 HeadSum;\r |
| 107 | \r |
| 108 | EFI_STATUS IcmpError;\r |
| 109 | \r |
| 110 | IP_IO_IP_INFO *IpInfo;\r |
| 111 | \r |
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112 | BOOLEAN InDestroy;\r |
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113 | } UDP4_INSTANCE_DATA;\r |
| 114 | \r |
| 115 | typedef struct _UDP4_RXDATA_WRAP_ {\r |
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116 | LIST_ENTRY Link;\r |
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117 | NET_BUF *Packet;\r |
| 118 | UINT32 TimeoutTick;\r |
| 119 | EFI_UDP4_RECEIVE_DATA RxData;\r |
| 120 | } UDP4_RXDATA_WRAP;\r |
| 121 | \r |
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122 | typedef struct {\r |
| 123 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r |
| 124 | UINTN NumberOfChildren;\r |
| 125 | EFI_HANDLE *ChildHandleBuffer;\r |
| 126 | } UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;\r |
| 127 | \r |
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128 | /**\r |
| 129 | Reads the current operational settings.\r |
| 130 | \r |
| 131 | The GetModeData() function copies the current operational settings of this EFI\r |
| 132 | UDPv4 Protocol instance into user-supplied buffers. This function is used\r |
| 133 | optionally to retrieve the operational mode data of underlying networks or\r |
| 134 | drivers.\r |
| 135 | \r |
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136 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 137 | @param[out] Udp4ConfigData Pointer to the buffer to receive the current configuration data.\r |
| 138 | @param[out] Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.\r |
| 139 | @param[out] MnpConfigData Pointer to the managed network configuration data structure.\r |
| 140 | @param[out] SnpModeData Pointer to the simple network mode data structure.\r |
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141 | \r |
| 142 | @retval EFI_SUCCESS The mode data was read.\r |
| 143 | @retval EFI_NOT_STARTED When Udp4ConfigData is queried, no configuration data is\r |
| 144 | available because this instance has not been started.\r |
| 145 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| 146 | \r |
| 147 | **/\r |
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148 | EFI_STATUS\r |
| 149 | EFIAPI\r |
| 150 | Udp4GetModeData (\r |
| 151 | IN EFI_UDP4_PROTOCOL *This,\r |
| 152 | OUT EFI_UDP4_CONFIG_DATA *Udp4ConfigData OPTIONAL,\r |
| 153 | OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,\r |
| 154 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r |
| 155 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r |
| 156 | );\r |
| 157 | \r |
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158 | /**\r |
| 159 | Initializes, changes, or resets the operational parameters for this instance of the EFI UDPv4\r |
| 160 | Protocol.\r |
| 161 | \r |
| 162 | The Configure() function is used to do the following:\r |
| 163 | * Initialize and start this instance of the EFI UDPv4 Protocol.\r |
| 164 | * Change the filtering rules and operational parameters.\r |
| 165 | * Reset this instance of the EFI UDPv4 Protocol.\r |
| 166 | Until these parameters are initialized, no network traffic can be sent or\r |
| 167 | received by this instance. This instance can be also reset by calling Configure()\r |
| 168 | with UdpConfigData set to NULL. Once reset, the receiving queue and transmitting\r |
| 169 | queue are flushed and no traffic is allowed through this instance.\r |
| 170 | With different parameters in UdpConfigData, Configure() can be used to bind\r |
| 171 | this instance to specified port.\r |
| 172 | \r |
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173 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 174 | @param[in] UdpConfigData Pointer to the buffer to receive the current configuration data.\r |
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175 | \r |
| 176 | @retval EFI_SUCCESS The configuration settings were set, changed, or reset successfully.\r |
| 177 | @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,\r |
| 178 | RARP, etc.) is not finished yet.\r |
| 179 | @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:\r |
| 180 | @retval EFI_ALREADY_STARTED The EFI UDPv4 Protocol instance is already started/configured\r |
| 181 | and must be stopped/reset before it can be reconfigured.\r |
| 182 | @retval EFI_ACCESS_DENIED UdpConfigData. AllowDuplicatePort is FALSE\r |
| 183 | and UdpConfigData.StationPort is already used by\r |
| 184 | other instance.\r |
| 185 | @retval EFI_OUT_OF_RESOURCES The EFI UDPv4 Protocol driver cannot allocate memory for this\r |
| 186 | EFI UDPv4 Protocol instance.\r |
| 187 | @retval EFI_DEVICE_ERROR An unexpected network or system error occurred and this instance\r |
| 188 | was not opened. \r |
| 189 | \r |
| 190 | **/\r |
| 83cbd279 |
191 | EFI_STATUS\r |
| 192 | EFIAPI\r |
| 193 | Udp4Configure (\r |
| 194 | IN EFI_UDP4_PROTOCOL *This,\r |
| 195 | IN EFI_UDP4_CONFIG_DATA *UdpConfigData OPTIONAL\r |
| 196 | );\r |
| 197 | \r |
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198 | /**\r |
| 199 | Joins and leaves multicast groups.\r |
| 200 | \r |
| 201 | The Groups() function is used to enable and disable the multicast group\r |
| 202 | filtering. If the JoinFlag is FALSE and the MulticastAddress is NULL, then all\r |
| 203 | currently joined groups are left.\r |
| 204 | \r |
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205 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 206 | @param[in] JoinFlag Set to TRUE to join a multicast group. Set to FALSE to leave one\r |
| 207 | or all multicast groups.\r |
| 208 | @param[in] MulticastAddress Pointer to multicast group address to join or leave.\r |
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209 | \r |
| 210 | @retval EFI_SUCCESS The operation completed successfully.\r |
| 211 | @retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.\r |
| 212 | @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,\r |
| 213 | RARP, etc.) is not finished yet.\r |
| 214 | @retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.\r |
| 215 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| 216 | - This is NULL.\r |
| 217 | - JoinFlag is TRUE and MulticastAddress is NULL.\r |
| 218 | - JoinFlag is TRUE and *MulticastAddress is not\r |
| 219 | a valid multicast address.\r |
| 220 | @retval EFI_ALREADY_STARTED The group address is already in the group table (when\r |
| 221 | JoinFlag is TRUE).\r |
| 222 | @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is\r |
| 223 | FALSE).\r |
| 224 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| 225 | \r |
| 226 | **/\r |
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227 | EFI_STATUS\r |
| 228 | EFIAPI\r |
| 229 | Udp4Groups (\r |
| 230 | IN EFI_UDP4_PROTOCOL *This,\r |
| 231 | IN BOOLEAN JoinFlag,\r |
| 232 | IN EFI_IPv4_ADDRESS *MulticastAddress OPTIONAL\r |
| 233 | );\r |
| 234 | \r |
| ce904bae |
235 | /**\r |
| 236 | Adds and deletes routing table entries.\r |
| 237 | \r |
| 238 | The Routes() function adds a route to or deletes a route from the routing table.\r |
| 239 | Routes are determined by comparing the SubnetAddress with the destination IP\r |
| 240 | address and arithmetically AND-ing it with the SubnetMask. The gateway address\r |
| 241 | must be on the same subnet as the configured station address.\r |
| 242 | The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.\r |
| 243 | The default route matches all destination IP addresses that do not match any\r |
| 244 | other routes.\r |
| 245 | A zero GatewayAddress is a nonroute. Packets are sent to the destination IP\r |
| 246 | address if it can be found in the Address Resolution Protocol (ARP) cache or\r |
| 247 | on the local subnet. One automatic nonroute entry will be inserted into the\r |
| 248 | routing table for outgoing packets that are addressed to a local subnet\r |
| 249 | (gateway address of 0.0.0.0).\r |
| 250 | Each instance of the EFI UDPv4 Protocol has its own independent routing table.\r |
| 251 | Instances of the EFI UDPv4 Protocol that use the default IP address will also\r |
| 252 | have copies of the routing table provided by the EFI_IP4_CONFIG_PROTOCOL. These\r |
| 253 | copies will be updated automatically whenever the IP driver reconfigures its\r |
| 254 | instances; as a result, the previous modification to these copies will be lost.\r |
| 255 | \r |
| 3e8c18da |
256 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 257 | @param[in] DeleteRoute Set to TRUE to delete this route from the routing table.\r |
| 258 | Set to FALSE to add this route to the routing table.\r |
| 259 | @param[in] SubnetAddress The destination network address that needs to be routed.\r |
| 260 | @param[in] SubnetMask The subnet mask of SubnetAddress.\r |
| 261 | @param[in] GatewayAddress The gateway IP address for this route.\r |
| ce904bae |
262 | \r |
| 263 | @retval EFI_SUCCESS The operation completed successfully.\r |
| 264 | @retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.\r |
| 265 | @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,\r |
| 266 | - RARP, etc.) is not finished yet.\r |
| 267 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r |
| 268 | @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.\r |
| 269 | @retval EFI_NOT_FOUND This route is not in the routing table.\r |
| 270 | @retval EFI_ACCESS_DENIED The route is already defined in the routing table.\r |
| 271 | \r |
| 272 | **/\r |
| 83cbd279 |
273 | EFI_STATUS\r |
| 274 | EFIAPI\r |
| 275 | Udp4Routes (\r |
| 276 | IN EFI_UDP4_PROTOCOL *This,\r |
| 277 | IN BOOLEAN DeleteRoute,\r |
| 278 | IN EFI_IPv4_ADDRESS *SubnetAddress,\r |
| 279 | IN EFI_IPv4_ADDRESS *SubnetMask,\r |
| 280 | IN EFI_IPv4_ADDRESS *GatewayAddress\r |
| 281 | );\r |
| 282 | \r |
| ce904bae |
283 | /**\r |
| 284 | Queues outgoing data packets into the transmit queue.\r |
| 285 | \r |
| 286 | The Transmit() function places a sending request to this instance of the EFI\r |
| 287 | UDPv4 Protocol, alongside the transmit data that was filled by the user. Whenever\r |
| 288 | the packet in the token is sent out or some errors occur, the Token.Event will\r |
| 289 | be signaled and Token.Status is updated. Providing a proper notification function\r |
| 290 | and context for the event will enable the user to receive the notification and\r |
| 291 | transmitting status.\r |
| 292 | \r |
| 3e8c18da |
293 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 294 | @param[in] Token Pointer to the completion token that will be placed into the\r |
| 295 | transmit queue.\r |
| ce904bae |
296 | \r |
| 297 | @retval EFI_SUCCESS The data has been queued for transmission.\r |
| 298 | @retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.\r |
| 299 | @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,\r |
| 300 | RARP, etc.) is not finished yet.\r |
| 301 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r |
| 302 | @retval EFI_ACCESS_DENIED The transmit completion token with the same\r |
| 303 | Token.Event was already in the transmit queue.\r |
| 304 | @retval EFI_NOT_READY The completion token could not be queued because the\r |
| 305 | transmit queue is full.\r |
| 306 | @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.\r |
| 307 | @retval EFI_NOT_FOUND There is no route to the destination network or address.\r |
| 308 | @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP packet\r |
| 309 | size. Or the length of the IP header + UDP header + data\r |
| 310 | length is greater than MTU if DoNotFragment is TRUE.\r |
| 311 | \r |
| 312 | **/\r |
| 83cbd279 |
313 | EFI_STATUS\r |
| 314 | EFIAPI\r |
| 315 | Udp4Transmit (\r |
| 316 | IN EFI_UDP4_PROTOCOL *This,\r |
| 317 | IN EFI_UDP4_COMPLETION_TOKEN *Token\r |
| 318 | );\r |
| 319 | \r |
| ce904bae |
320 | /**\r |
| 321 | Places an asynchronous receive request into the receiving queue.\r |
| 322 | \r |
| 323 | The Receive() function places a completion token into the receive packet queue.\r |
| 324 | This function is always asynchronous.\r |
| 325 | The caller must fill in the Token.Event field in the completion token, and this\r |
| 326 | field cannot be NULL. When the receive operation completes, the EFI UDPv4 Protocol\r |
| 327 | driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event\r |
| 328 | is signaled. Providing a proper notification function and context for the event\r |
| 329 | will enable the user to receive the notification and receiving status. That\r |
| 330 | notification function is guaranteed to not be re-entered.\r |
| 331 | \r |
| 3e8c18da |
332 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 333 | @param[in] Token Pointer to a token that is associated with\r |
| 334 | the receive data descriptor.\r |
| ce904bae |
335 | \r |
| 336 | @retval EFI_SUCCESS The receive completion token was cached.\r |
| 337 | @retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.\r |
| 338 | @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, RARP, etc.)\r |
| 339 | is not finished yet.\r |
| 340 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
| 341 | @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system\r |
| 342 | resources (usually memory).\r |
| 343 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| 344 | @retval EFI_ACCESS_DENIED A receive completion token with the same Token.Event was already in\r |
| 345 | the receive queue.\r |
| 346 | @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.\r |
| 347 | \r |
| 348 | **/\r |
| 83cbd279 |
349 | EFI_STATUS\r |
| 350 | EFIAPI\r |
| 351 | Udp4Receive (\r |
| 352 | IN EFI_UDP4_PROTOCOL *This,\r |
| 353 | IN EFI_UDP4_COMPLETION_TOKEN *Token\r |
| 354 | );\r |
| 355 | \r |
| ce904bae |
356 | /**\r |
| 357 | Aborts an asynchronous transmit or receive request.\r |
| 358 | \r |
| 359 | The Cancel() function is used to abort a pending transmit or receive request.\r |
| 360 | If the token is in the transmit or receive request queues, after calling this\r |
| 361 | function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r |
| 362 | signaled. If the token is not in one of the queues, which usually means that\r |
| 363 | the asynchronous operation has completed, this function will not signal the\r |
| 364 | token and EFI_NOT_FOUND is returned.\r |
| 365 | \r |
| 3e8c18da |
366 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| 367 | @param[in] Token Pointer to a token that has been issued by\r |
| 368 | EFI_UDP4_PROTOCOL.Transmit() or\r |
| 369 | EFI_UDP4_PROTOCOL.Receive().If NULL, all pending\r |
| 370 | tokens are aborted.\r |
| ce904bae |
371 | \r |
| 372 | @retval EFI_SUCCESS The asynchronous I/O request was aborted and Token.Event\r |
| 373 | was signaled. When Token is NULL, all pending requests are\r |
| 374 | aborted and their events are signaled.\r |
| 375 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| 376 | @retval EFI_NOT_STARTED This instance has not been started.\r |
| 377 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r |
| 378 | RARP, etc.) is not finished yet.\r |
| 379 | @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was\r |
| 380 | not found in the transmit or receive queue. It has either completed\r |
| 381 | or was not issued by Transmit() and Receive().\r |
| 382 | \r |
| 383 | **/\r |
| 83cbd279 |
384 | EFI_STATUS\r |
| 385 | EFIAPI\r |
| 386 | Udp4Cancel (\r |
| 387 | IN EFI_UDP4_PROTOCOL *This,\r |
| 388 | IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL\r |
| 389 | );\r |
| 390 | \r |
| ce904bae |
391 | /**\r |
| 392 | Polls for incoming data packets and processes outgoing data packets.\r |
| 393 | \r |
| 394 | The Poll() function can be used by network drivers and applications to increase\r |
| 395 | the rate that data packets are moved between the communications device and the\r |
| 396 | transmit and receive queues.\r |
| 397 | In some systems, the periodic timer event in the managed network driver may not\r |
| 398 | poll the underlying communications device fast enough to transmit and/or receive\r |
| 399 | all data packets without missing incoming packets or dropping outgoing packets.\r |
| 400 | Drivers and applications that are experiencing packet loss should try calling\r |
| 401 | the Poll() function more often.\r |
| 402 | \r |
| 3e8c18da |
403 | @param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.\r |
| ce904bae |
404 | \r |
| 405 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r |
| 406 | @retval EFI_INVALID_PARAMETER This is NULL.\r |
| 407 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
| 408 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue.\r |
| 409 | \r |
| 410 | **/\r |
| 83cbd279 |
411 | EFI_STATUS\r |
| 412 | EFIAPI\r |
| 413 | Udp4Poll (\r |
| 414 | IN EFI_UDP4_PROTOCOL *This\r |
| 415 | );\r |
| 416 | \r |
| ce904bae |
417 | /**\r |
| 418 | Create the Udp service context data.\r |
| 419 | \r |
| 47c75f64 |
420 | @param[in, out] Udp4Service Pointer to the UDP4_SERVICE_DATA.\r |
| 421 | @param[in] ImageHandle The image handle of this udp4 driver.\r |
| 422 | @param[in] ControllerHandle The controller handle this udp4 driver binds on.\r |
| ce904bae |
423 | \r |
| 47c75f64 |
424 | @retval EFI_SUCCESS The udp4 service context data is created and\r |
| 425 | initialized.\r |
| 426 | @retval EFI_OUT_OF_RESOURCES Cannot allocate memory.\r |
| 427 | @retval other Other error occurs.\r |
| ce904bae |
428 | \r |
| 429 | **/\r |
| 83cbd279 |
430 | EFI_STATUS\r |
| 431 | Udp4CreateService (\r |
| ce904bae |
432 | IN OUT UDP4_SERVICE_DATA *Udp4Service,\r |
| 433 | IN EFI_HANDLE ImageHandle,\r |
| 434 | IN EFI_HANDLE ControllerHandle\r |
| 83cbd279 |
435 | );\r |
| 436 | \r |
| ce904bae |
437 | /**\r |
| 438 | Clean the Udp service context data.\r |
| 439 | \r |
| 3e8c18da |
440 | @param[in] Udp4Service Pointer to the UDP4_SERVICE_DATA.\r |
| ce904bae |
441 | \r |
| 442 | **/\r |
| 83cbd279 |
443 | VOID\r |
| 444 | Udp4CleanService (\r |
| 445 | IN UDP4_SERVICE_DATA *Udp4Service\r |
| 446 | );\r |
| 447 | \r |
| ce904bae |
448 | /**\r |
| 449 | This function intializes the new created udp instance.\r |
| 450 | \r |
| 47c75f64 |
451 | @param[in] Udp4Service Pointer to the UDP4_SERVICE_DATA.\r |
| 452 | @param[in, out] Instance Pointer to the un-initialized UDP4_INSTANCE_DATA.\r |
| ce904bae |
453 | \r |
| ce904bae |
454 | **/\r |
| 83cbd279 |
455 | VOID\r |
| 456 | Udp4InitInstance (\r |
| ce904bae |
457 | IN UDP4_SERVICE_DATA *Udp4Service,\r |
| 458 | IN OUT UDP4_INSTANCE_DATA *Instance\r |
| 83cbd279 |
459 | );\r |
| 460 | \r |
| ce904bae |
461 | /**\r |
| 462 | This function cleans the udp instance.\r |
| 463 | \r |
| 3e8c18da |
464 | @param[in] Instance Pointer to the UDP4_INSTANCE_DATA to clean.\r |
| ce904bae |
465 | \r |
| 466 | **/\r |
| 83cbd279 |
467 | VOID\r |
| 468 | Udp4CleanInstance (\r |
| 469 | IN UDP4_INSTANCE_DATA *Instance\r |
| 470 | );\r |
| 471 | \r |
| ce904bae |
472 | /**\r |
| 473 | This function tries to bind the udp instance according to the configured port\r |
| 474 | allocation strategy.\r |
| 475 | \r |
| 47c75f64 |
476 | @param[in] InstanceList Pointer to the head of the list linking the udp\r |
| ce904bae |
477 | instances.\r |
| 47c75f64 |
478 | @param[in, out] ConfigData Pointer to the ConfigData of the instance to be\r |
| ce904bae |
479 | bound. ConfigData->StationPort will be assigned\r |
| 480 | with an available port value on success.\r |
| 481 | \r |
| 482 | @retval EFI_SUCCESS The bound operation is completed successfully.\r |
| 483 | @retval EFI_ACCESS_DENIED The <Address, Port> specified by the ConfigData is\r |
| 484 | already used by other instance.\r |
| 485 | @retval EFI_OUT_OF_RESOURCES No available port resources.\r |
| 486 | \r |
| 487 | **/\r |
| 83cbd279 |
488 | EFI_STATUS\r |
| 489 | Udp4Bind (\r |
| ce904bae |
490 | IN LIST_ENTRY *InstanceList,\r |
| 491 | IN OUT EFI_UDP4_CONFIG_DATA *ConfigData\r |
| 83cbd279 |
492 | );\r |
| 493 | \r |
| ce904bae |
494 | /**\r |
| 495 | This function is used to check whether the NewConfigData has any un-reconfigurable\r |
| 496 | parameters changed compared to the OldConfigData.\r |
| 497 | \r |
| 3e8c18da |
498 | @param[in] OldConfigData Pointer to the current ConfigData the udp instance\r |
| ce904bae |
499 | uses.\r |
| 3e8c18da |
500 | @param[in] NewConfigData Pointer to the new ConfigData.\r |
| ce904bae |
501 | \r |
| 502 | @retval TRUE The instance is reconfigurable.\r |
| 503 | @retval FALSE Otherwise.\r |
| 504 | \r |
| 505 | **/\r |
| 83cbd279 |
506 | BOOLEAN\r |
| 507 | Udp4IsReconfigurable (\r |
| 508 | IN EFI_UDP4_CONFIG_DATA *OldConfigData,\r |
| 509 | IN EFI_UDP4_CONFIG_DATA *NewConfigData\r |
| 510 | );\r |
| 511 | \r |
| ce904bae |
512 | /**\r |
| 513 | This function builds the Ip4 configdata from the Udp4ConfigData.\r |
| 514 | \r |
| 3e8c18da |
515 | @param[in] Udp4ConfigData Pointer to the EFI_UDP4_CONFIG_DATA.\r |
| 516 | @param[in, out] Ip4ConfigData Pointer to the EFI_IP4_CONFIG_DATA.\r |
| ce904bae |
517 | \r |
| 518 | **/\r |
| 83cbd279 |
519 | VOID\r |
| 520 | Udp4BuildIp4ConfigData (\r |
| ce904bae |
521 | IN EFI_UDP4_CONFIG_DATA *Udp4ConfigData,\r |
| 522 | IN OUT EFI_IP4_CONFIG_DATA *Ip4ConfigData\r |
| 83cbd279 |
523 | );\r |
| 524 | \r |
| ce904bae |
525 | /**\r |
| 526 | This function validates the TxToken, it returns the error code according to the spec.\r |
| 527 | \r |
| 3e8c18da |
528 | @param[in] Instance Pointer to the udp instance context data.\r |
| 529 | @param[in] TxToken Pointer to the token to be checked.\r |
| ce904bae |
530 | \r |
| 531 | @retval EFI_SUCCESS The TxToken is valid.\r |
| 532 | @retval EFI_INVALID_PARAMETER One or more of the following are TRUE: This is\r |
| 533 | NULL. Token is NULL. Token.Event is NULL.\r |
| 534 | Token.Packet.TxData is NULL.\r |
| 535 | Token.Packet.TxData.FragmentCount is zero.\r |
| 536 | Token.Packet.TxData.DataLength is not equal to the\r |
| 537 | sum of fragment lengths. One or more of the\r |
| 538 | Token.Packet.TxData.FragmentTable[].\r |
| 539 | FragmentLength fields is zero. One or more of the\r |
| 540 | Token.Packet.TxData.FragmentTable[].\r |
| 541 | FragmentBuffer fields is NULL.\r |
| 542 | Token.Packet.TxData. GatewayAddress is not a\r |
| 543 | unicast IPv4 address if it is not NULL. One or\r |
| 544 | more IPv4 addresses in Token.Packet.TxData.\r |
| 545 | UdpSessionData are not valid unicast IPv4\r |
| 546 | addresses if the UdpSessionData is not NULL.\r |
| 547 | @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP\r |
| 548 | packet size.\r |
| 549 | \r |
| 550 | **/\r |
| 83cbd279 |
551 | EFI_STATUS\r |
| 552 | Udp4ValidateTxToken (\r |
| 553 | IN UDP4_INSTANCE_DATA *Instance,\r |
| 554 | IN EFI_UDP4_COMPLETION_TOKEN *TxToken\r |
| 555 | );\r |
| 556 | \r |
| ce904bae |
557 | /**\r |
| 558 | This function checks whether the specified Token duplicates with the one in the Map.\r |
| 559 | \r |
| 3e8c18da |
560 | @param[in] Map Pointer to the NET_MAP.\r |
| 561 | @param[in] Item Pointer to the NET_MAP_ITEM contain the pointer to\r |
| ce904bae |
562 | the Token.\r |
| 3e8c18da |
563 | @param[in] Context Pointer to the Token to be checked.\r |
| ce904bae |
564 | \r |
| 565 | @retval EFI_SUCCESS The Token specified by Context differs from the\r |
| 566 | one in the Item.\r |
| 567 | @retval EFI_ACCESS_DENIED The Token duplicates with the one in the Item.\r |
| 568 | \r |
| 569 | **/\r |
| 83cbd279 |
570 | EFI_STATUS\r |
| e798cd87 |
571 | EFIAPI\r |
| 83cbd279 |
572 | Udp4TokenExist (\r |
| 573 | IN NET_MAP *Map,\r |
| 574 | IN NET_MAP_ITEM *Item,\r |
| 575 | IN VOID *Context\r |
| 576 | );\r |
| 577 | \r |
| ce904bae |
578 | /**\r |
| 579 | This function calculates the checksum for the Packet, utilizing the pre-calculated\r |
| 580 | pseudo HeadSum to reduce some overhead.\r |
| 581 | \r |
| 3e8c18da |
582 | @param[in] Packet Pointer to the NET_BUF contains the udp datagram.\r |
| 583 | @param[in] HeadSum Checksum of the pseudo header execpt the length\r |
| ce904bae |
584 | field.\r |
| 585 | \r |
| 3e8c18da |
586 | @retval The 16-bit checksum of this udp datagram.\r |
| ce904bae |
587 | \r |
| 588 | **/\r |
| 83cbd279 |
589 | UINT16\r |
| 590 | Udp4Checksum (\r |
| 591 | IN NET_BUF *Packet,\r |
| 592 | IN UINT16 HeadSum\r |
| 593 | );\r |
| 594 | \r |
| ce904bae |
595 | /**\r |
| 596 | This function removes the specified Token from the TokenMap.\r |
| 597 | \r |
| 47c75f64 |
598 | @param[in, out] TokenMap Pointer to the NET_MAP containing the tokens.\r |
| 599 | @param[in] Token Pointer to the Token to be removed.\r |
| ce904bae |
600 | \r |
| 601 | @retval EFI_SUCCESS The specified Token is removed from the TokenMap.\r |
| 602 | @retval EFI_NOT_FOUND The specified Token is not found in the TokenMap.\r |
| 603 | \r |
| 604 | **/\r |
| 83cbd279 |
605 | EFI_STATUS\r |
| 606 | Udp4RemoveToken (\r |
| ce904bae |
607 | IN OUT NET_MAP *TokenMap,\r |
| 608 | IN EFI_UDP4_COMPLETION_TOKEN *Token\r |
| 83cbd279 |
609 | );\r |
| 610 | \r |
| ce904bae |
611 | /**\r |
| 612 | This function removes the multicast group specified by Arg from the Map.\r |
| 613 | \r |
| 47c75f64 |
614 | @param[in, out] Map Pointer to the NET_MAP.\r |
| 615 | @param[in] Item Pointer to the NET_MAP_ITEM.\r |
| 616 | @param[in] Arg Pointer to the Arg, it's the pointer to a\r |
| ce904bae |
617 | multicast IPv4 Address.\r |
| 618 | \r |
| 619 | @retval EFI_SUCCESS The multicast address is removed.\r |
| 620 | @retval EFI_ABORTED The specified multicast address is removed and the\r |
| 621 | Arg is not NULL.\r |
| 622 | \r |
| 623 | **/\r |
| 83cbd279 |
624 | EFI_STATUS\r |
| e798cd87 |
625 | EFIAPI\r |
| 83cbd279 |
626 | Udp4LeaveGroup (\r |
| ce904bae |
627 | IN OUT NET_MAP *Map,\r |
| 628 | IN NET_MAP_ITEM *Item,\r |
| 629 | IN VOID *Arg OPTIONAL\r |
| 83cbd279 |
630 | );\r |
| 631 | \r |
| ce904bae |
632 | /**\r |
| 633 | This function removes all the Wrap datas in the RcvdDgramQue.\r |
| 634 | \r |
| 3e8c18da |
635 | @param[in] Instance Pointer to the udp instance context data.\r |
| ce904bae |
636 | \r |
| 637 | **/\r |
| 83cbd279 |
638 | VOID\r |
| 36ee91ca |
639 | Udp4FlushRcvdDgram (\r |
| 640 | IN UDP4_INSTANCE_DATA *Instance\r |
| 83cbd279 |
641 | );\r |
| 642 | \r |
| ce904bae |
643 | /**\r |
| 644 | Cancel Udp4 tokens from the Udp4 instance.\r |
| 645 | \r |
| 3e8c18da |
646 | @param[in] Instance Pointer to the udp instance context data.\r |
| 647 | @param[in] Token Pointer to the token to be canceled, if NULL, all\r |
| ce904bae |
648 | tokens in this instance will be cancelled.\r |
| 649 | \r |
| 650 | @retval EFI_SUCCESS The Token is cancelled.\r |
| 651 | @retval EFI_NOT_FOUND The Token is not found.\r |
| 652 | \r |
| 653 | **/\r |
| 83cbd279 |
654 | EFI_STATUS\r |
| 655 | Udp4InstanceCancelToken (\r |
| 656 | IN UDP4_INSTANCE_DATA *Instance,\r |
| 657 | IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL\r |
| 658 | );\r |
| 659 | \r |
| ce904bae |
660 | /**\r |
| 661 | This function delivers the received datagrams for the specified instance.\r |
| 662 | \r |
| 3e8c18da |
663 | @param[in] Instance Pointer to the instance context data.\r |
| ce904bae |
664 | \r |
| 665 | **/\r |
| 83cbd279 |
666 | VOID\r |
| 667 | Udp4InstanceDeliverDgram (\r |
| 668 | IN UDP4_INSTANCE_DATA *Instance\r |
| 669 | );\r |
| 670 | \r |
| ce904bae |
671 | /**\r |
| 672 | This function reports the received ICMP error.\r |
| 673 | \r |
| 3e8c18da |
674 | @param[in] Instance Pointer to the udp instance context data.\r |
| ce904bae |
675 | \r |
| 676 | **/\r |
| 83cbd279 |
677 | VOID\r |
| 678 | Udp4ReportIcmpError (\r |
| 679 | IN UDP4_INSTANCE_DATA *Instance\r |
| 680 | );\r |
| 681 | \r |
| ce904bae |
682 | /**\r |
| 683 | This function is a dummy ext-free function for the NET_BUF created for the output\r |
| 684 | udp datagram.\r |
| 685 | \r |
| 3e8c18da |
686 | @param[in] Context Pointer to the context data.\r |
| ce904bae |
687 | \r |
| 688 | **/\r |
| 83cbd279 |
689 | VOID\r |
| e798cd87 |
690 | EFIAPI\r |
| 83cbd279 |
691 | Udp4NetVectorExtFree (\r |
| 692 | VOID *Context\r |
| 693 | );\r |
| d551cc64 |
694 | \r |
| 83cbd279 |
695 | #endif\r |
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