| 1 | /** @file\r |
| 2 | Udp6 driver's whole implementation.\r |
| 3 | \r |
| 4 | Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r |
| 5 | \r |
| 6 | This program and the accompanying materials\r |
| 7 | are licensed and made available under the terms and conditions of the BSD License\r |
| 8 | which accompanies this distribution. The full text of the license may be found at\r |
| 9 | http://opensource.org/licenses/bsd-license.php.\r |
| 10 | \r |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 13 | \r |
| 14 | **/\r |
| 15 | \r |
| 16 | #include "Udp6Impl.h"\r |
| 17 | \r |
| 18 | UINT16 mUdp6RandomPort;\r |
| 19 | \r |
| 20 | /**\r |
| 21 | This function checks and timeouts the I/O datagrams holding by the corresponding\r |
| 22 | service context.\r |
| 23 | \r |
| 24 | @param[in] Event The event this function is registered to.\r |
| 25 | @param[in] Context The context data registered during the creation of\r |
| 26 | the Event.\r |
| 27 | \r |
| 28 | **/\r |
| 29 | VOID\r |
| 30 | EFIAPI\r |
| 31 | Udp6CheckTimeout (\r |
| 32 | IN EFI_EVENT Event,\r |
| 33 | IN VOID *Context\r |
| 34 | );\r |
| 35 | \r |
| 36 | /**\r |
| 37 | This function finds the udp instance by the specified <Address, Port> pair.\r |
| 38 | \r |
| 39 | @param[in] InstanceList Pointer to the head of the list linking the udp\r |
| 40 | instances.\r |
| 41 | @param[in] Address Pointer to the specified IPv6 address.\r |
| 42 | @param[in] Port The udp port number.\r |
| 43 | \r |
| 44 | @retval TRUE The specified <Address, Port> pair is found.\r |
| 45 | @retval FALSE Otherwise.\r |
| 46 | \r |
| 47 | **/\r |
| 48 | BOOLEAN\r |
| 49 | Udp6FindInstanceByPort (\r |
| 50 | IN LIST_ENTRY *InstanceList,\r |
| 51 | IN EFI_IPv6_ADDRESS *Address,\r |
| 52 | IN UINT16 Port\r |
| 53 | );\r |
| 54 | \r |
| 55 | /**\r |
| 56 | This function is the packet transmitting notify function registered to the IpIo\r |
| 57 | interface. It's called to signal the udp TxToken when the IpIo layer completes\r |
| 58 | transmitting of the udp datagram.\r |
| 59 | \r |
| 60 | @param[in] Status The completion status of the output udp datagram.\r |
| 61 | @param[in] Context Pointer to the context data.\r |
| 62 | @param[in] Sender Specify a EFI_IP6_PROTOCOL for sending.\r |
| 63 | @param[in] NotifyData Pointer to the notify data.\r |
| 64 | \r |
| 65 | **/\r |
| 66 | VOID\r |
| 67 | EFIAPI\r |
| 68 | Udp6DgramSent (\r |
| 69 | IN EFI_STATUS Status,\r |
| 70 | IN VOID *Context,\r |
| 71 | IN IP_IO_IP_PROTOCOL Sender,\r |
| 72 | IN VOID *NotifyData\r |
| 73 | );\r |
| 74 | \r |
| 75 | /**\r |
| 76 | This function processes the received datagram passed up by the IpIo layer.\r |
| 77 | \r |
| 78 | @param[in] Status The status of this udp datagram.\r |
| 79 | @param[in] IcmpError The IcmpError code, only available when Status is\r |
| 80 | EFI_ICMP_ERROR.\r |
| 81 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA.\r |
| 82 | @param[in] Packet Pointer to the NET_BUF containing the received udp\r |
| 83 | datagram.\r |
| 84 | @param[in] Context Pointer to the context data.\r |
| 85 | \r |
| 86 | **/\r |
| 87 | VOID\r |
| 88 | EFIAPI\r |
| 89 | Udp6DgramRcvd (\r |
| 90 | IN EFI_STATUS Status,\r |
| 91 | IN UINT8 IcmpError,\r |
| 92 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 93 | IN NET_BUF *Packet,\r |
| 94 | IN VOID *Context\r |
| 95 | );\r |
| 96 | \r |
| 97 | /**\r |
| 98 | This function cancle the token specified by Arg in the Map.\r |
| 99 | \r |
| 100 | @param[in] Map Pointer to the NET_MAP.\r |
| 101 | @param[in] Item Pointer to the NET_MAP_ITEM.\r |
| 102 | @param[in] Arg Pointer to the token to be cancelled, if NULL, all\r |
| 103 | the tokens in this Map will be cancelled.\r |
| 104 | This parameter is optional and may be NULL.\r |
| 105 | \r |
| 106 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL or the token\r |
| 107 | is not the same as that in the Item if Arg is not\r |
| 108 | NULL.\r |
| 109 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r |
| 110 | cancelled.\r |
| 111 | \r |
| 112 | **/\r |
| 113 | EFI_STATUS\r |
| 114 | EFIAPI\r |
| 115 | Udp6CancelTokens (\r |
| 116 | IN NET_MAP *Map,\r |
| 117 | IN NET_MAP_ITEM *Item,\r |
| 118 | IN VOID *Arg OPTIONAL\r |
| 119 | );\r |
| 120 | \r |
| 121 | /**\r |
| 122 | This function check if the received udp datagram matches with the Instance.\r |
| 123 | \r |
| 124 | @param[in] Instance Pointer to the udp instance context data.\r |
| 125 | @param[in] Udp6Session Pointer to the EFI_UDP6_SESSION_DATA abstracted\r |
| 126 | from the received udp datagram.\r |
| 127 | \r |
| 128 | @retval TRUE The udp datagram matches the receiving requirements of the Instance.\r |
| 129 | @retval FALSE The udp datagram doe not match the receiving requirements of the Instance.\r |
| 130 | \r |
| 131 | **/\r |
| 132 | BOOLEAN\r |
| 133 | Udp6MatchDgram (\r |
| 134 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 135 | IN EFI_UDP6_SESSION_DATA *Udp6Session\r |
| 136 | );\r |
| 137 | \r |
| 138 | /**\r |
| 139 | This function removes the Wrap specified by Context and releases relevant resources.\r |
| 140 | \r |
| 141 | @param[in] Event The Event this notify function is registered to.\r |
| 142 | @param[in] Context Pointer to the context data.\r |
| 143 | \r |
| 144 | **/\r |
| 145 | VOID\r |
| 146 | EFIAPI\r |
| 147 | Udp6RecycleRxDataWrap (\r |
| 148 | IN EFI_EVENT Event,\r |
| 149 | IN VOID *Context\r |
| 150 | );\r |
| 151 | \r |
| 152 | /**\r |
| 153 | This function wraps the Packet into RxData.\r |
| 154 | \r |
| 155 | @param[in] Instance Pointer to the instance context data.\r |
| 156 | @param[in] Packet Pointer to the buffer containing the received\r |
| 157 | datagram.\r |
| 158 | @param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r |
| 159 | datagram.\r |
| 160 | \r |
| 161 | @return Pointer to the structure wrapping the RxData and the Packet.\r |
| 162 | \r |
| 163 | **/\r |
| 164 | UDP6_RXDATA_WRAP *\r |
| 165 | Udp6WrapRxData (\r |
| 166 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 167 | IN NET_BUF *Packet,\r |
| 168 | IN EFI_UDP6_RECEIVE_DATA *RxData\r |
| 169 | );\r |
| 170 | \r |
| 171 | /**\r |
| 172 | This function enqueues the received datagram into the instances' receiving queues.\r |
| 173 | \r |
| 174 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 175 | @param[in] Packet Pointer to the buffer containing the received\r |
| 176 | datagram.\r |
| 177 | @param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r |
| 178 | datagram.\r |
| 179 | \r |
| 180 | @return The times this datagram is enqueued.\r |
| 181 | \r |
| 182 | **/\r |
| 183 | UINTN\r |
| 184 | Udp6EnqueueDgram (\r |
| 185 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 186 | IN NET_BUF *Packet,\r |
| 187 | IN EFI_UDP6_RECEIVE_DATA *RxData\r |
| 188 | );\r |
| 189 | \r |
| 190 | /**\r |
| 191 | This function delivers the datagrams enqueued in the instances.\r |
| 192 | \r |
| 193 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 194 | \r |
| 195 | **/\r |
| 196 | VOID\r |
| 197 | Udp6DeliverDgram (\r |
| 198 | IN UDP6_SERVICE_DATA *Udp6Service\r |
| 199 | );\r |
| 200 | \r |
| 201 | /**\r |
| 202 | This function demultiplexes the received udp datagram to the apropriate instances.\r |
| 203 | \r |
| 204 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 205 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstrated from\r |
| 206 | the received datagram.\r |
| 207 | @param[in] Packet Pointer to the buffer containing the received udp\r |
| 208 | datagram.\r |
| 209 | \r |
| 210 | **/\r |
| 211 | VOID\r |
| 212 | Udp6Demultiplex (\r |
| 213 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 214 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 215 | IN NET_BUF *Packet\r |
| 216 | );\r |
| 217 | \r |
| 218 | /**\r |
| 219 | This function handles the received Icmp Error message and demultiplexes it to the\r |
| 220 | instance.\r |
| 221 | \r |
| 222 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 223 | @param[in] IcmpError The icmp error code.\r |
| 224 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstracted\r |
| 225 | from the received Icmp Error packet.\r |
| 226 | @param[in, out] Packet Pointer to the Icmp Error packet.\r |
| 227 | \r |
| 228 | **/\r |
| 229 | VOID\r |
| 230 | Udp6IcmpHandler (\r |
| 231 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 232 | IN UINT8 IcmpError,\r |
| 233 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 234 | IN OUT NET_BUF *Packet\r |
| 235 | );\r |
| 236 | \r |
| 237 | /**\r |
| 238 | This function builds and sends out a icmp port unreachable message.\r |
| 239 | \r |
| 240 | @param[in] IpIo Pointer to the IP_IO instance.\r |
| 241 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA of the packet\r |
| 242 | causes this icmp error message.\r |
| 243 | @param[in] Udp6Header Pointer to the udp header of the datagram causes\r |
| 244 | this icmp error message.\r |
| 245 | \r |
| 246 | **/\r |
| 247 | VOID\r |
| 248 | Udp6SendPortUnreach (\r |
| 249 | IN IP_IO *IpIo,\r |
| 250 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 251 | IN VOID *Udp6Header\r |
| 252 | );\r |
| 253 | \r |
| 254 | /**\r |
| 255 | Find the key in the netmap\r |
| 256 | \r |
| 257 | @param[in] Map The netmap to search within.\r |
| 258 | @param[in] Key The key to search.\r |
| 259 | \r |
| 260 | @return The point to the item contains the Key, or NULL if Key isn't in the map.\r |
| 261 | \r |
| 262 | **/\r |
| 263 | NET_MAP_ITEM *\r |
| 264 | Udp6MapMultiCastAddr (\r |
| 265 | IN NET_MAP *Map,\r |
| 266 | IN VOID *Key\r |
| 267 | );\r |
| 268 | \r |
| 269 | /**\r |
| 270 | Create the Udp service context data.\r |
| 271 | \r |
| 272 | @param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.\r |
| 273 | @param[in] ImageHandle The image handle of this udp6 driver.\r |
| 274 | @param[in] ControllerHandle The controller handle this udp6 driver binds on.\r |
| 275 | \r |
| 276 | @retval EFI_SUCCESS The udp6 service context data was created and\r |
| 277 | initialized.\r |
| 278 | @retval EFI_OUT_OF_RESOURCES Cannot allocate memory.\r |
| 279 | @retval Others An error condition occurred.\r |
| 280 | \r |
| 281 | **/\r |
| 282 | EFI_STATUS\r |
| 283 | Udp6CreateService (\r |
| 284 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 285 | IN EFI_HANDLE ImageHandle,\r |
| 286 | IN EFI_HANDLE ControllerHandle\r |
| 287 | )\r |
| 288 | {\r |
| 289 | EFI_STATUS Status;\r |
| 290 | IP_IO_OPEN_DATA OpenData;\r |
| 291 | \r |
| 292 | ZeroMem (Udp6Service, sizeof (UDP6_SERVICE_DATA));\r |
| 293 | \r |
| 294 | Udp6Service->Signature = UDP6_SERVICE_DATA_SIGNATURE;\r |
| 295 | Udp6Service->ServiceBinding = mUdp6ServiceBinding;\r |
| 296 | Udp6Service->ImageHandle = ImageHandle;\r |
| 297 | Udp6Service->ControllerHandle = ControllerHandle;\r |
| 298 | Udp6Service->ChildrenNumber = 0;\r |
| 299 | \r |
| 300 | InitializeListHead (&Udp6Service->ChildrenList);\r |
| 301 | \r |
| 302 | //\r |
| 303 | // Create the IpIo for this service context.\r |
| 304 | //\r |
| 305 | Udp6Service->IpIo = IpIoCreate (ImageHandle, ControllerHandle, IP_VERSION_6);\r |
| 306 | if (Udp6Service->IpIo == NULL) {\r |
| 307 | return EFI_OUT_OF_RESOURCES;\r |
| 308 | }\r |
| 309 | \r |
| 310 | //\r |
| 311 | // Set the OpenData used to open the IpIo.\r |
| 312 | //\r |
| 313 | CopyMem (\r |
| 314 | &OpenData.IpConfigData.Ip6CfgData,\r |
| 315 | &mIp6IoDefaultIpConfigData,\r |
| 316 | sizeof (EFI_IP6_CONFIG_DATA)\r |
| 317 | );\r |
| 318 | OpenData.RcvdContext = (VOID *) Udp6Service;\r |
| 319 | OpenData.SndContext = NULL;\r |
| 320 | OpenData.PktRcvdNotify = Udp6DgramRcvd;\r |
| 321 | OpenData.PktSentNotify = Udp6DgramSent;\r |
| 322 | \r |
| 323 | //\r |
| 324 | // Configure and start the IpIo.\r |
| 325 | //\r |
| 326 | Status = IpIoOpen (Udp6Service->IpIo, &OpenData);\r |
| 327 | if (EFI_ERROR (Status)) {\r |
| 328 | goto ON_ERROR;\r |
| 329 | }\r |
| 330 | \r |
| 331 | //\r |
| 332 | // Create the event for Udp timeout checking.\r |
| 333 | //\r |
| 334 | Status = gBS->CreateEvent (\r |
| 335 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r |
| 336 | TPL_CALLBACK,\r |
| 337 | Udp6CheckTimeout,\r |
| 338 | Udp6Service,\r |
| 339 | &Udp6Service->TimeoutEvent\r |
| 340 | );\r |
| 341 | if (EFI_ERROR (Status)) {\r |
| 342 | goto ON_ERROR;\r |
| 343 | }\r |
| 344 | \r |
| 345 | //\r |
| 346 | // Start the timeout timer event.\r |
| 347 | //\r |
| 348 | Status = gBS->SetTimer (\r |
| 349 | Udp6Service->TimeoutEvent,\r |
| 350 | TimerPeriodic,\r |
| 351 | UDP6_TIMEOUT_INTERVAL\r |
| 352 | );\r |
| 353 | if (EFI_ERROR (Status)) {\r |
| 354 | goto ON_ERROR;\r |
| 355 | }\r |
| 356 | \r |
| 357 | return EFI_SUCCESS;\r |
| 358 | \r |
| 359 | ON_ERROR:\r |
| 360 | \r |
| 361 | if (Udp6Service->TimeoutEvent != NULL) {\r |
| 362 | gBS->CloseEvent (Udp6Service->TimeoutEvent);\r |
| 363 | }\r |
| 364 | \r |
| 365 | IpIoDestroy (Udp6Service->IpIo);\r |
| 366 | Udp6Service->IpIo = NULL;\r |
| 367 | \r |
| 368 | return Status;\r |
| 369 | }\r |
| 370 | \r |
| 371 | \r |
| 372 | /**\r |
| 373 | Clean the Udp service context data.\r |
| 374 | \r |
| 375 | @param[in, out] Udp6Service Pointer to the UDP6_SERVICE_DATA.\r |
| 376 | \r |
| 377 | **/\r |
| 378 | VOID\r |
| 379 | Udp6CleanService (\r |
| 380 | IN OUT UDP6_SERVICE_DATA *Udp6Service\r |
| 381 | )\r |
| 382 | {\r |
| 383 | //\r |
| 384 | // Close the TimeoutEvent timer.\r |
| 385 | //\r |
| 386 | gBS->CloseEvent (Udp6Service->TimeoutEvent);\r |
| 387 | \r |
| 388 | //\r |
| 389 | // Destroy the IpIo.\r |
| 390 | //\r |
| 391 | IpIoDestroy (Udp6Service->IpIo);\r |
| 392 | Udp6Service->IpIo = NULL;\r |
| 393 | \r |
| 394 | ZeroMem (Udp6Service, sizeof (UDP6_SERVICE_DATA));\r |
| 395 | }\r |
| 396 | \r |
| 397 | \r |
| 398 | /**\r |
| 399 | This function checks and times out the I/O datagrams listed in the\r |
| 400 | UDP6_SERVICE_DATA which is specified by the input parameter Context.\r |
| 401 | \r |
| 402 | \r |
| 403 | @param[in] Event The event this function registered to.\r |
| 404 | @param[in] Context The context data registered during the creation of\r |
| 405 | the Event.\r |
| 406 | \r |
| 407 | **/\r |
| 408 | VOID\r |
| 409 | EFIAPI\r |
| 410 | Udp6CheckTimeout (\r |
| 411 | IN EFI_EVENT Event,\r |
| 412 | IN VOID *Context\r |
| 413 | )\r |
| 414 | {\r |
| 415 | UDP6_SERVICE_DATA *Udp6Service;\r |
| 416 | LIST_ENTRY *Entry;\r |
| 417 | UDP6_INSTANCE_DATA *Instance;\r |
| 418 | LIST_ENTRY *WrapEntry;\r |
| 419 | LIST_ENTRY *NextEntry;\r |
| 420 | UDP6_RXDATA_WRAP *Wrap;\r |
| 421 | \r |
| 422 | Udp6Service = (UDP6_SERVICE_DATA *) Context;\r |
| 423 | NET_CHECK_SIGNATURE (Udp6Service, UDP6_SERVICE_DATA_SIGNATURE);\r |
| 424 | \r |
| 425 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 426 | //\r |
| 427 | // Iterate all the instances belonging to this service context.\r |
| 428 | //\r |
| 429 | Instance = NET_LIST_USER_STRUCT (Entry, UDP6_INSTANCE_DATA, Link);\r |
| 430 | NET_CHECK_SIGNATURE (Instance, UDP6_INSTANCE_DATA_SIGNATURE);\r |
| 431 | \r |
| 432 | if (!Instance->Configured || (Instance->ConfigData.ReceiveTimeout == 0)) {\r |
| 433 | //\r |
| 434 | // Skip this instance if it's not configured or no receive timeout.\r |
| 435 | //\r |
| 436 | continue;\r |
| 437 | }\r |
| 438 | \r |
| 439 | NET_LIST_FOR_EACH_SAFE (WrapEntry, NextEntry, &Instance->RcvdDgramQue) {\r |
| 440 | //\r |
| 441 | // Iterate all the rxdatas belonging to this udp instance.\r |
| 442 | //\r |
| 443 | Wrap = NET_LIST_USER_STRUCT (WrapEntry, UDP6_RXDATA_WRAP, Link);\r |
| 444 | \r |
| 445 | if (Wrap->TimeoutTick < UDP6_TIMEOUT_INTERVAL / 10) {\r |
| 446 | //\r |
| 447 | // Remove this RxData if it timeouts.\r |
| 448 | //\r |
| 449 | Udp6RecycleRxDataWrap (NULL, (VOID *) Wrap);\r |
| 450 | } else {\r |
| 451 | Wrap->TimeoutTick -= UDP6_TIMEOUT_INTERVAL / 10;\r |
| 452 | }\r |
| 453 | }\r |
| 454 | }\r |
| 455 | }\r |
| 456 | \r |
| 457 | \r |
| 458 | /**\r |
| 459 | This function intializes the new created udp instance.\r |
| 460 | \r |
| 461 | @param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.\r |
| 462 | @param[in, out] Instance Pointer to the un-initialized UDP6_INSTANCE_DATA.\r |
| 463 | \r |
| 464 | **/\r |
| 465 | VOID\r |
| 466 | Udp6InitInstance (\r |
| 467 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 468 | IN OUT UDP6_INSTANCE_DATA *Instance\r |
| 469 | )\r |
| 470 | {\r |
| 471 | //\r |
| 472 | // Set the signature.\r |
| 473 | //\r |
| 474 | Instance->Signature = UDP6_INSTANCE_DATA_SIGNATURE;\r |
| 475 | \r |
| 476 | //\r |
| 477 | // Init the lists.\r |
| 478 | //\r |
| 479 | InitializeListHead (&Instance->Link);\r |
| 480 | InitializeListHead (&Instance->RcvdDgramQue);\r |
| 481 | InitializeListHead (&Instance->DeliveredDgramQue);\r |
| 482 | \r |
| 483 | //\r |
| 484 | // Init the NET_MAPs.\r |
| 485 | //\r |
| 486 | NetMapInit (&Instance->TxTokens);\r |
| 487 | NetMapInit (&Instance->RxTokens);\r |
| 488 | NetMapInit (&Instance->McastIps);\r |
| 489 | \r |
| 490 | //\r |
| 491 | // Save the pointer to the UDP6_SERVICE_DATA, and initialize other members.\r |
| 492 | //\r |
| 493 | Instance->Udp6Service = Udp6Service;\r |
| 494 | CopyMem (&Instance->Udp6Proto, &mUdp6Protocol, sizeof (EFI_UDP6_PROTOCOL));\r |
| 495 | Instance->IcmpError = EFI_SUCCESS;\r |
| 496 | Instance->Configured = FALSE;\r |
| 497 | Instance->IsNoMapping = FALSE;\r |
| 498 | Instance->InDestroy = FALSE;\r |
| 499 | }\r |
| 500 | \r |
| 501 | \r |
| 502 | /**\r |
| 503 | This function cleans the udp instance.\r |
| 504 | \r |
| 505 | @param[in, out] Instance Pointer to the UDP6_INSTANCE_DATA to clean.\r |
| 506 | \r |
| 507 | **/\r |
| 508 | VOID\r |
| 509 | Udp6CleanInstance (\r |
| 510 | IN OUT UDP6_INSTANCE_DATA *Instance\r |
| 511 | )\r |
| 512 | {\r |
| 513 | NetMapClean (&Instance->McastIps);\r |
| 514 | NetMapClean (&Instance->RxTokens);\r |
| 515 | NetMapClean (&Instance->TxTokens);\r |
| 516 | }\r |
| 517 | \r |
| 518 | \r |
| 519 | /**\r |
| 520 | This function finds the udp instance by the specified <Address, Port> pair.\r |
| 521 | \r |
| 522 | @param[in] InstanceList Pointer to the head of the list linking the udp\r |
| 523 | instances.\r |
| 524 | @param[in] Address Pointer to the specified IPv6 address.\r |
| 525 | @param[in] Port The udp port number.\r |
| 526 | \r |
| 527 | @retval TRUE The specified <Address, Port> pair is found.\r |
| 528 | @retval FALSE Otherwise.\r |
| 529 | \r |
| 530 | **/\r |
| 531 | BOOLEAN\r |
| 532 | Udp6FindInstanceByPort (\r |
| 533 | IN LIST_ENTRY *InstanceList,\r |
| 534 | IN EFI_IPv6_ADDRESS *Address,\r |
| 535 | IN UINT16 Port\r |
| 536 | )\r |
| 537 | {\r |
| 538 | LIST_ENTRY *Entry;\r |
| 539 | UDP6_INSTANCE_DATA *Instance;\r |
| 540 | EFI_UDP6_CONFIG_DATA *ConfigData;\r |
| 541 | \r |
| 542 | NET_LIST_FOR_EACH (Entry, InstanceList) {\r |
| 543 | //\r |
| 544 | // Iterate all the udp instances.\r |
| 545 | //\r |
| 546 | Instance = NET_LIST_USER_STRUCT (Entry, UDP6_INSTANCE_DATA, Link);\r |
| 547 | ConfigData = &Instance->ConfigData;\r |
| 548 | \r |
| 549 | if (!Instance->Configured || ConfigData->AcceptAnyPort) {\r |
| 550 | //\r |
| 551 | // If the instance is not configured, or the configdata of the instance indicates\r |
| 552 | // this instance accepts any port, skip it.\r |
| 553 | //\r |
| 554 | continue;\r |
| 555 | }\r |
| 556 | \r |
| 557 | if (EFI_IP6_EQUAL (&ConfigData->StationAddress, Address) &&\r |
| 558 | (ConfigData->StationPort == Port)\r |
| 559 | ) {\r |
| 560 | //\r |
| 561 | // If both the address and the port are the same, return TRUE.\r |
| 562 | //\r |
| 563 | return TRUE;\r |
| 564 | }\r |
| 565 | }\r |
| 566 | \r |
| 567 | //\r |
| 568 | // Return FALSE when matching fails.\r |
| 569 | //\r |
| 570 | return FALSE;\r |
| 571 | }\r |
| 572 | \r |
| 573 | \r |
| 574 | /**\r |
| 575 | This function tries to bind the udp instance according to the configured port\r |
| 576 | allocation stragety.\r |
| 577 | \r |
| 578 | @param[in] InstanceList Pointer to the head of the list linking the udp\r |
| 579 | instances.\r |
| 580 | @param[in] ConfigData Pointer to the ConfigData of the instance to be\r |
| 581 | bound.\r |
| 582 | \r |
| 583 | @retval EFI_SUCCESS The bound operation completed successfully.\r |
| 584 | @retval EFI_ACCESS_DENIED The <Address, Port> specified by the ConfigData is\r |
| 585 | already used by other instance.\r |
| 586 | @retval EFI_OUT_OF_RESOURCES No available port resources.\r |
| 587 | \r |
| 588 | **/\r |
| 589 | EFI_STATUS\r |
| 590 | Udp6Bind (\r |
| 591 | IN LIST_ENTRY *InstanceList,\r |
| 592 | IN EFI_UDP6_CONFIG_DATA *ConfigData\r |
| 593 | )\r |
| 594 | {\r |
| 595 | EFI_IPv6_ADDRESS *StationAddress;\r |
| 596 | UINT16 StartPort;\r |
| 597 | \r |
| 598 | if (ConfigData->AcceptAnyPort) {\r |
| 599 | return EFI_SUCCESS;\r |
| 600 | }\r |
| 601 | \r |
| 602 | StationAddress = &ConfigData->StationAddress;\r |
| 603 | \r |
| 604 | if (ConfigData->StationPort != 0) {\r |
| 605 | \r |
| 606 | if (!ConfigData->AllowDuplicatePort &&\r |
| 607 | Udp6FindInstanceByPort (InstanceList, StationAddress, ConfigData->StationPort)\r |
| 608 | ) {\r |
| 609 | //\r |
| 610 | // Do not allow duplicate ports and the port is already used by other instance.\r |
| 611 | //\r |
| 612 | return EFI_ACCESS_DENIED;\r |
| 613 | }\r |
| 614 | } else {\r |
| 615 | //\r |
| 616 | // Select a random port for this instance.\r |
| 617 | //\r |
| 618 | if (ConfigData->AllowDuplicatePort) {\r |
| 619 | //\r |
| 620 | // Just pick up the random port if the instance allows duplicate port.\r |
| 621 | //\r |
| 622 | ConfigData->StationPort = mUdp6RandomPort;\r |
| 623 | } else {\r |
| 624 | \r |
| 625 | StartPort = mUdp6RandomPort;\r |
| 626 | \r |
| 627 | while (Udp6FindInstanceByPort (InstanceList, StationAddress, mUdp6RandomPort)) {\r |
| 628 | \r |
| 629 | mUdp6RandomPort++;\r |
| 630 | if (mUdp6RandomPort == 0) {\r |
| 631 | mUdp6RandomPort = UDP6_PORT_KNOWN;\r |
| 632 | }\r |
| 633 | \r |
| 634 | if (mUdp6RandomPort == StartPort) {\r |
| 635 | //\r |
| 636 | // No available port.\r |
| 637 | //\r |
| 638 | return EFI_OUT_OF_RESOURCES;\r |
| 639 | }\r |
| 640 | }\r |
| 641 | \r |
| 642 | ConfigData->StationPort = mUdp6RandomPort;\r |
| 643 | }\r |
| 644 | \r |
| 645 | mUdp6RandomPort++;\r |
| 646 | if (mUdp6RandomPort == 0) {\r |
| 647 | mUdp6RandomPort = UDP6_PORT_KNOWN;\r |
| 648 | }\r |
| 649 | }\r |
| 650 | return EFI_SUCCESS;\r |
| 651 | }\r |
| 652 | \r |
| 653 | \r |
| 654 | /**\r |
| 655 | This function is used to check whether the NewConfigData has any un-reconfigurable\r |
| 656 | parameters changed compared to the OldConfigData.\r |
| 657 | \r |
| 658 | @param[in] OldConfigData Pointer to the current ConfigData the udp instance\r |
| 659 | uses.\r |
| 660 | @param[in] NewConfigData Pointer to the new ConfigData.\r |
| 661 | \r |
| 662 | @retval TRUE The instance is reconfigurable according to the NewConfigData.\r |
| 663 | @retval FALSE Otherwise.\r |
| 664 | \r |
| 665 | **/\r |
| 666 | BOOLEAN\r |
| 667 | Udp6IsReconfigurable (\r |
| 668 | IN EFI_UDP6_CONFIG_DATA *OldConfigData,\r |
| 669 | IN EFI_UDP6_CONFIG_DATA *NewConfigData\r |
| 670 | )\r |
| 671 | {\r |
| 672 | if ((NewConfigData->AcceptAnyPort != OldConfigData->AcceptAnyPort) ||\r |
| 673 | (NewConfigData->AcceptPromiscuous != OldConfigData->AcceptPromiscuous) ||\r |
| 674 | (NewConfigData->AllowDuplicatePort != OldConfigData->AllowDuplicatePort)\r |
| 675 | ) {\r |
| 676 | //\r |
| 677 | // The receiving filter parameters cannot be changed.\r |
| 678 | //\r |
| 679 | return FALSE;\r |
| 680 | }\r |
| 681 | \r |
| 682 | if ((!NewConfigData->AcceptAnyPort) &&\r |
| 683 | (NewConfigData->StationPort != OldConfigData->StationPort)\r |
| 684 | ) {\r |
| 685 | //\r |
| 686 | // The port is not changeable.\r |
| 687 | //\r |
| 688 | return FALSE;\r |
| 689 | }\r |
| 690 | \r |
| 691 | if (!EFI_IP6_EQUAL (&NewConfigData->StationAddress, &OldConfigData->StationAddress)) {\r |
| 692 | //\r |
| 693 | // The StationAddress is not the same.\r |
| 694 | //\r |
| 695 | return FALSE;\r |
| 696 | }\r |
| 697 | \r |
| 698 | \r |
| 699 | if (!EFI_IP6_EQUAL (&NewConfigData->RemoteAddress, &OldConfigData->RemoteAddress)) {\r |
| 700 | //\r |
| 701 | // The remoteaddress is not the same.\r |
| 702 | //\r |
| 703 | return FALSE;\r |
| 704 | }\r |
| 705 | \r |
| 706 | if (!NetIp6IsUnspecifiedAddr (&NewConfigData->RemoteAddress) &&\r |
| 707 | (NewConfigData->RemotePort != OldConfigData->RemotePort)\r |
| 708 | ) {\r |
| 709 | //\r |
| 710 | // The RemotePort differs if it's designated in the configdata.\r |
| 711 | //\r |
| 712 | return FALSE;\r |
| 713 | }\r |
| 714 | \r |
| 715 | //\r |
| 716 | // All checks pass, return TRUE.\r |
| 717 | //\r |
| 718 | return TRUE;\r |
| 719 | }\r |
| 720 | \r |
| 721 | \r |
| 722 | /**\r |
| 723 | This function builds the Ip6 configdata from the Udp6ConfigData.\r |
| 724 | \r |
| 725 | @param[in] Udp6ConfigData Pointer to the EFI_UDP6_CONFIG_DATA.\r |
| 726 | @param[in, out] Ip6ConfigData Pointer to the EFI_IP6_CONFIG_DATA.\r |
| 727 | \r |
| 728 | **/\r |
| 729 | VOID\r |
| 730 | Udp6BuildIp6ConfigData (\r |
| 731 | IN EFI_UDP6_CONFIG_DATA *Udp6ConfigData,\r |
| 732 | IN OUT EFI_IP6_CONFIG_DATA *Ip6ConfigData\r |
| 733 | )\r |
| 734 | {\r |
| 735 | CopyMem (\r |
| 736 | Ip6ConfigData,\r |
| 737 | &mIp6IoDefaultIpConfigData,\r |
| 738 | sizeof (EFI_IP6_CONFIG_DATA)\r |
| 739 | );\r |
| 740 | Ip6ConfigData->DefaultProtocol = EFI_IP_PROTO_UDP;\r |
| 741 | Ip6ConfigData->AcceptPromiscuous = Udp6ConfigData->AcceptPromiscuous;\r |
| 742 | IP6_COPY_ADDRESS (&Ip6ConfigData->StationAddress, &Udp6ConfigData->StationAddress);\r |
| 743 | IP6_COPY_ADDRESS (&Ip6ConfigData->DestinationAddress, &Udp6ConfigData->RemoteAddress);\r |
| 744 | //\r |
| 745 | // Use the -1 magic number to disable the receiving process of the ip instance.\r |
| 746 | //\r |
| 747 | Ip6ConfigData->ReceiveTimeout = (UINT32) (-1);\r |
| 748 | }\r |
| 749 | \r |
| 750 | \r |
| 751 | /**\r |
| 752 | This function validates the TxToken. It returns the error code according to the spec.\r |
| 753 | \r |
| 754 | @param[in] Instance Pointer to the udp instance context data.\r |
| 755 | @param[in] TxToken Pointer to the token to be checked.\r |
| 756 | \r |
| 757 | @retval EFI_SUCCESS The TxToken is valid.\r |
| 758 | @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:\r |
| 759 | Token.Event is NULL;\r |
| 760 | Token.Packet.TxData is NULL;\r |
| 761 | Token.Packet.TxData.FragmentCount is zero;\r |
| 762 | Token.Packet.TxData.DataLength is not equal to the\r |
| 763 | sum of fragment lengths;\r |
| 764 | One or more of the\r |
| 765 | Token.Packet.TxData.FragmentTable[].FragmentLength\r |
| 766 | fields is zero;\r |
| 767 | One or more of the\r |
| 768 | Token.Packet.TxData.FragmentTable[].FragmentBuffer\r |
| 769 | fields is NULL;\r |
| 770 | UdpSessionData.DestinationAddress are not valid\r |
| 771 | unicast IPv6 addresses if the UdpSessionData is\r |
| 772 | not NULL;\r |
| 773 | UdpSessionData.DestinationPort and\r |
| 774 | ConfigData.RemotePort are all zero if the\r |
| 775 | UdpSessionData is not NULL.\r |
| 776 | @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP\r |
| 777 | packet size.\r |
| 778 | \r |
| 779 | **/\r |
| 780 | EFI_STATUS\r |
| 781 | Udp6ValidateTxToken (\r |
| 782 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 783 | IN EFI_UDP6_COMPLETION_TOKEN *TxToken\r |
| 784 | )\r |
| 785 | {\r |
| 786 | EFI_UDP6_TRANSMIT_DATA *TxData;\r |
| 787 | UINT32 Index;\r |
| 788 | UINT32 TotalLen;\r |
| 789 | EFI_UDP6_CONFIG_DATA *ConfigData;\r |
| 790 | EFI_UDP6_SESSION_DATA *UdpSessionData;\r |
| 791 | \r |
| 792 | \r |
| 793 | if (TxToken->Event == NULL) {\r |
| 794 | return EFI_INVALID_PARAMETER;\r |
| 795 | }\r |
| 796 | \r |
| 797 | TxData = TxToken->Packet.TxData;\r |
| 798 | \r |
| 799 | if ((TxData == NULL) || (TxData->FragmentCount == 0)) {\r |
| 800 | return EFI_INVALID_PARAMETER;\r |
| 801 | }\r |
| 802 | \r |
| 803 | TotalLen = 0;\r |
| 804 | for (Index = 0; Index < TxData->FragmentCount; Index++) {\r |
| 805 | \r |
| 806 | if ((TxData->FragmentTable[Index].FragmentBuffer == NULL) ||\r |
| 807 | (TxData->FragmentTable[Index].FragmentLength == 0)\r |
| 808 | ) {\r |
| 809 | //\r |
| 810 | // If the FragmentBuffer is NULL, or the FragmentLeng is zero.\r |
| 811 | //\r |
| 812 | return EFI_INVALID_PARAMETER;\r |
| 813 | }\r |
| 814 | \r |
| 815 | TotalLen += TxData->FragmentTable[Index].FragmentLength;\r |
| 816 | }\r |
| 817 | \r |
| 818 | if (TotalLen != TxData->DataLength) {\r |
| 819 | //\r |
| 820 | // The TotalLen calculated by adding all the FragmentLeng doesn't equal to the\r |
| 821 | // DataLength.\r |
| 822 | //\r |
| 823 | return EFI_INVALID_PARAMETER;\r |
| 824 | }\r |
| 825 | \r |
| 826 | ConfigData = &Instance->ConfigData;\r |
| 827 | UdpSessionData = TxData->UdpSessionData;\r |
| 828 | \r |
| 829 | if (UdpSessionData != NULL) {\r |
| 830 | \r |
| 831 | if ((UdpSessionData->DestinationPort == 0) && (ConfigData->RemotePort == 0)) {\r |
| 832 | //\r |
| 833 | // Ambiguous; no avalaible DestinationPort for this token.\r |
| 834 | //\r |
| 835 | return EFI_INVALID_PARAMETER;\r |
| 836 | }\r |
| 837 | \r |
| 838 | if (NetIp6IsUnspecifiedAddr (&UdpSessionData->DestinationAddress) &&\r |
| 839 | NetIp6IsUnspecifiedAddr (&ConfigData->RemoteAddress)\r |
| 840 | ) {\r |
| 841 | //\r |
| 842 | // The DestinationAddress is not specificed.\r |
| 843 | //\r |
| 844 | return EFI_INVALID_PARAMETER;\r |
| 845 | }\r |
| 846 | \r |
| 847 | if (!NetIp6IsUnspecifiedAddr (&UdpSessionData->DestinationAddress) &&\r |
| 848 | !NetIp6IsUnspecifiedAddr (&ConfigData->RemoteAddress)\r |
| 849 | ) {\r |
| 850 | //\r |
| 851 | // The ConfigData.RemoteAddress is not zero and the UdpSessionData.DestinationAddress\r |
| 852 | // is not zero too.\r |
| 853 | //\r |
| 854 | return EFI_INVALID_PARAMETER;\r |
| 855 | }\r |
| 856 | } else if (NetIp6IsUnspecifiedAddr (&ConfigData->RemoteAddress)) {\r |
| 857 | //\r |
| 858 | // The configured RemoteAddress is all zero, and the user doesn't override the\r |
| 859 | // destination address.\r |
| 860 | //\r |
| 861 | return EFI_INVALID_PARAMETER;\r |
| 862 | }\r |
| 863 | \r |
| 864 | if (TxData->DataLength > UDP6_MAX_DATA_SIZE) {\r |
| 865 | return EFI_BAD_BUFFER_SIZE;\r |
| 866 | }\r |
| 867 | \r |
| 868 | return EFI_SUCCESS;\r |
| 869 | }\r |
| 870 | \r |
| 871 | \r |
| 872 | /**\r |
| 873 | This function checks whether the specified Token duplicates the one in the Map.\r |
| 874 | \r |
| 875 | @param[in] Map Pointer to the NET_MAP.\r |
| 876 | @param[in] Item Pointer to the NET_MAP_ITEM contain the pointer to\r |
| 877 | the Token.\r |
| 878 | @param[in] Context Pointer to the Token to be checked.\r |
| 879 | \r |
| 880 | @retval EFI_SUCCESS The Token specified by Context differs from the\r |
| 881 | one in the Item.\r |
| 882 | @retval EFI_ACCESS_DENIED The Token duplicates with the one in the Item.\r |
| 883 | \r |
| 884 | **/\r |
| 885 | EFI_STATUS\r |
| 886 | EFIAPI\r |
| 887 | Udp6TokenExist (\r |
| 888 | IN NET_MAP *Map,\r |
| 889 | IN NET_MAP_ITEM *Item,\r |
| 890 | IN VOID *Context\r |
| 891 | )\r |
| 892 | {\r |
| 893 | EFI_UDP6_COMPLETION_TOKEN *Token;\r |
| 894 | EFI_UDP6_COMPLETION_TOKEN *TokenInItem;\r |
| 895 | \r |
| 896 | Token = (EFI_UDP6_COMPLETION_TOKEN *) Context;\r |
| 897 | TokenInItem = (EFI_UDP6_COMPLETION_TOKEN *) Item->Key;\r |
| 898 | \r |
| 899 | if ((Token == TokenInItem) || (Token->Event == TokenInItem->Event)) {\r |
| 900 | //\r |
| 901 | // The Token duplicates with the TokenInItem in case either the two pointers are the\r |
| 902 | // same, or the Events of these two tokens are the same.\r |
| 903 | //\r |
| 904 | return EFI_ACCESS_DENIED;\r |
| 905 | }\r |
| 906 | \r |
| 907 | return EFI_SUCCESS;\r |
| 908 | }\r |
| 909 | \r |
| 910 | \r |
| 911 | /**\r |
| 912 | This function calculates the checksum for the Packet, utilizing the pre-calculated\r |
| 913 | pseudo HeadSum to reduce some overhead.\r |
| 914 | \r |
| 915 | @param[in] Packet Pointer to the NET_BUF contains the udp datagram.\r |
| 916 | @param[in] HeadSum Checksum of the pseudo header, execpt the length\r |
| 917 | field.\r |
| 918 | \r |
| 919 | @return The 16-bit checksum of this udp datagram.\r |
| 920 | \r |
| 921 | **/\r |
| 922 | UINT16\r |
| 923 | Udp6Checksum (\r |
| 924 | IN NET_BUF *Packet,\r |
| 925 | IN UINT16 HeadSum\r |
| 926 | )\r |
| 927 | {\r |
| 928 | UINT16 Checksum;\r |
| 929 | \r |
| 930 | Checksum = NetbufChecksum (Packet);\r |
| 931 | Checksum = NetAddChecksum (Checksum, HeadSum);\r |
| 932 | \r |
| 933 | Checksum = NetAddChecksum (Checksum, HTONS ((UINT16) Packet->TotalSize));\r |
| 934 | Checksum = (UINT16) (~Checksum);\r |
| 935 | return Checksum;\r |
| 936 | }\r |
| 937 | \r |
| 938 | \r |
| 939 | /**\r |
| 940 | This function removes the specified Token from the TokenMap.\r |
| 941 | \r |
| 942 | @param[in] TokenMap Pointer to the NET_MAP containing the tokens.\r |
| 943 | @param[in] Token Pointer to the Token to be removed.\r |
| 944 | \r |
| 945 | @retval EFI_SUCCESS The specified Token is removed from the TokenMap.\r |
| 946 | @retval EFI_NOT_FOUND The specified Token is not found in the TokenMap.\r |
| 947 | \r |
| 948 | **/\r |
| 949 | EFI_STATUS\r |
| 950 | Udp6RemoveToken (\r |
| 951 | IN NET_MAP *TokenMap,\r |
| 952 | IN EFI_UDP6_COMPLETION_TOKEN *Token\r |
| 953 | )\r |
| 954 | {\r |
| 955 | NET_MAP_ITEM *Item;\r |
| 956 | \r |
| 957 | //\r |
| 958 | // Find the Token first.\r |
| 959 | //\r |
| 960 | Item = NetMapFindKey (TokenMap, (VOID *) Token);\r |
| 961 | \r |
| 962 | if (Item != NULL) {\r |
| 963 | //\r |
| 964 | // Remove the token if it's found in the map.\r |
| 965 | //\r |
| 966 | NetMapRemoveItem (TokenMap, Item, NULL);\r |
| 967 | \r |
| 968 | return EFI_SUCCESS;\r |
| 969 | }\r |
| 970 | return EFI_NOT_FOUND;\r |
| 971 | }\r |
| 972 | \r |
| 973 | \r |
| 974 | /**\r |
| 975 | This function is the packet transmitting notify function registered to the IpIo\r |
| 976 | interface. It's called to signal the udp TxToken when IpIo layer completes the\r |
| 977 | transmitting of the udp datagram.\r |
| 978 | \r |
| 979 | @param[in] Status The completion status of the output udp datagram.\r |
| 980 | @param[in] Context Pointer to the context data.\r |
| 981 | @param[in] Sender Specify a EFI_IP6_PROTOCOL for sending.\r |
| 982 | @param[in] NotifyData Pointer to the notify data.\r |
| 983 | \r |
| 984 | **/\r |
| 985 | VOID\r |
| 986 | EFIAPI\r |
| 987 | Udp6DgramSent (\r |
| 988 | IN EFI_STATUS Status,\r |
| 989 | IN VOID *Context,\r |
| 990 | IN IP_IO_IP_PROTOCOL Sender,\r |
| 991 | IN VOID *NotifyData\r |
| 992 | )\r |
| 993 | {\r |
| 994 | UDP6_INSTANCE_DATA *Instance;\r |
| 995 | EFI_UDP6_COMPLETION_TOKEN *Token;\r |
| 996 | \r |
| 997 | Instance = (UDP6_INSTANCE_DATA *) Context;\r |
| 998 | Token = (EFI_UDP6_COMPLETION_TOKEN *) NotifyData;\r |
| 999 | \r |
| 1000 | if (Udp6RemoveToken (&Instance->TxTokens, Token) == EFI_SUCCESS) {\r |
| 1001 | //\r |
| 1002 | // The token may be cancelled. Only signal it if the remove operation succeeds.\r |
| 1003 | //\r |
| 1004 | Token->Status = Status;\r |
| 1005 | gBS->SignalEvent (Token->Event);\r |
| 1006 | DispatchDpc ();\r |
| 1007 | }\r |
| 1008 | }\r |
| 1009 | \r |
| 1010 | \r |
| 1011 | /**\r |
| 1012 | This function processes the received datagram passed up by the IpIo layer.\r |
| 1013 | \r |
| 1014 | @param[in] Status The status of this udp datagram.\r |
| 1015 | @param[in] IcmpError The IcmpError code, only available when Status is\r |
| 1016 | EFI_ICMP_ERROR.\r |
| 1017 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA.\r |
| 1018 | @param[in] Packet Pointer to the NET_BUF containing the received udp\r |
| 1019 | datagram.\r |
| 1020 | @param[in] Context Pointer to the context data.\r |
| 1021 | \r |
| 1022 | **/\r |
| 1023 | VOID\r |
| 1024 | EFIAPI\r |
| 1025 | Udp6DgramRcvd (\r |
| 1026 | IN EFI_STATUS Status,\r |
| 1027 | IN UINT8 IcmpError,\r |
| 1028 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 1029 | IN NET_BUF *Packet,\r |
| 1030 | IN VOID *Context\r |
| 1031 | )\r |
| 1032 | {\r |
| 1033 | NET_CHECK_SIGNATURE (Packet, NET_BUF_SIGNATURE);\r |
| 1034 | \r |
| 1035 | //\r |
| 1036 | // IpIo only passes received packets with Status EFI_SUCCESS or EFI_ICMP_ERROR.\r |
| 1037 | //\r |
| 1038 | if (Status == EFI_SUCCESS) {\r |
| 1039 | \r |
| 1040 | //\r |
| 1041 | // Demultiplex the received datagram.\r |
| 1042 | //\r |
| 1043 | Udp6Demultiplex ((UDP6_SERVICE_DATA *) Context, NetSession, Packet);\r |
| 1044 | } else {\r |
| 1045 | //\r |
| 1046 | // Handle the ICMP6 Error packet.\r |
| 1047 | //\r |
| 1048 | Udp6IcmpHandler ((UDP6_SERVICE_DATA *) Context, IcmpError, NetSession, Packet);\r |
| 1049 | }\r |
| 1050 | \r |
| 1051 | //\r |
| 1052 | // Dispatch the DPC queued by the NotifyFunction of the rx token's events\r |
| 1053 | // that are signaled with received data.\r |
| 1054 | //\r |
| 1055 | DispatchDpc ();\r |
| 1056 | }\r |
| 1057 | \r |
| 1058 | \r |
| 1059 | /**\r |
| 1060 | This function removes the multicast group specified by Arg from the Map.\r |
| 1061 | \r |
| 1062 | @param[in] Map Pointer to the NET_MAP.\r |
| 1063 | @param[in] Item Pointer to the NET_MAP_ITEM.\r |
| 1064 | @param[in] Arg Pointer to the Arg, it's the pointer to a\r |
| 1065 | multicast IPv6 Address. This parameter is\r |
| 1066 | optional and may be NULL.\r |
| 1067 | \r |
| 1068 | @retval EFI_SUCCESS The multicast address is removed.\r |
| 1069 | @retval EFI_ABORTED The specified multicast address is removed, and the\r |
| 1070 | Arg is not NULL.\r |
| 1071 | \r |
| 1072 | **/\r |
| 1073 | EFI_STATUS\r |
| 1074 | EFIAPI\r |
| 1075 | Udp6LeaveGroup (\r |
| 1076 | IN NET_MAP *Map,\r |
| 1077 | IN NET_MAP_ITEM *Item,\r |
| 1078 | IN VOID *Arg OPTIONAL\r |
| 1079 | )\r |
| 1080 | {\r |
| 1081 | EFI_IPv6_ADDRESS *McastIp;\r |
| 1082 | \r |
| 1083 | McastIp = Arg;\r |
| 1084 | \r |
| 1085 | if ((McastIp != NULL) &&\r |
| 1086 | !EFI_IP6_EQUAL (McastIp, ((EFI_IPv6_ADDRESS *)Item->Key))\r |
| 1087 | ) {\r |
| 1088 | //\r |
| 1089 | // McastIp is not NULL and the multicast address contained in the Item\r |
| 1090 | // is not the same as McastIp.\r |
| 1091 | //\r |
| 1092 | return EFI_SUCCESS;\r |
| 1093 | }\r |
| 1094 | \r |
| 1095 | FreePool (Item->Key);\r |
| 1096 | \r |
| 1097 | //\r |
| 1098 | // Remove this Item.\r |
| 1099 | //\r |
| 1100 | NetMapRemoveItem (Map, Item, NULL);\r |
| 1101 | \r |
| 1102 | if (McastIp != NULL) {\r |
| 1103 | //\r |
| 1104 | // Return EFI_ABORTED in case McastIp is not NULL to terminate the iteration.\r |
| 1105 | //\r |
| 1106 | return EFI_ABORTED;\r |
| 1107 | }\r |
| 1108 | \r |
| 1109 | return EFI_SUCCESS;\r |
| 1110 | }\r |
| 1111 | \r |
| 1112 | \r |
| 1113 | /**\r |
| 1114 | This function cancle the token specified by Arg in the Map.\r |
| 1115 | \r |
| 1116 | @param[in] Map Pointer to the NET_MAP.\r |
| 1117 | @param[in] Item Pointer to the NET_MAP_ITEM.\r |
| 1118 | @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r |
| 1119 | the tokens in this Map will be cancelled.\r |
| 1120 | This parameter is optional and may be NULL.\r |
| 1121 | \r |
| 1122 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r |
| 1123 | is not the same as that in the Item, if Arg is not\r |
| 1124 | NULL.\r |
| 1125 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r |
| 1126 | cancelled.\r |
| 1127 | \r |
| 1128 | **/\r |
| 1129 | EFI_STATUS\r |
| 1130 | EFIAPI\r |
| 1131 | Udp6CancelTokens (\r |
| 1132 | IN NET_MAP *Map,\r |
| 1133 | IN NET_MAP_ITEM *Item,\r |
| 1134 | IN VOID *Arg OPTIONAL\r |
| 1135 | )\r |
| 1136 | {\r |
| 1137 | EFI_UDP6_COMPLETION_TOKEN *TokenToCancel;\r |
| 1138 | NET_BUF *Packet;\r |
| 1139 | IP_IO *IpIo;\r |
| 1140 | \r |
| 1141 | if ((Arg != NULL) && (Item->Key != Arg)) {\r |
| 1142 | return EFI_SUCCESS;\r |
| 1143 | }\r |
| 1144 | \r |
| 1145 | if (Item->Value != NULL) {\r |
| 1146 | //\r |
| 1147 | // If the token is a transmit token, the corresponding Packet is recorded in\r |
| 1148 | // Item->Value, invoke IpIo to cancel this packet first. The IpIoCancelTxToken\r |
| 1149 | // will invoke Udp6DgramSent, the token will be signaled and this Item will\r |
| 1150 | // be removed from the Map there.\r |
| 1151 | //\r |
| 1152 | Packet = (NET_BUF *) (Item->Value);\r |
| 1153 | IpIo = (IP_IO *) (*((UINTN *) &Packet->ProtoData[0]));\r |
| 1154 | \r |
| 1155 | IpIoCancelTxToken (IpIo, Packet);\r |
| 1156 | } else {\r |
| 1157 | //\r |
| 1158 | // The token is a receive token. Abort it and remove it from the Map.\r |
| 1159 | //\r |
| 1160 | TokenToCancel = (EFI_UDP6_COMPLETION_TOKEN *) Item->Key;\r |
| 1161 | NetMapRemoveItem (Map, Item, NULL);\r |
| 1162 | \r |
| 1163 | TokenToCancel->Status = EFI_ABORTED;\r |
| 1164 | gBS->SignalEvent (TokenToCancel->Event);\r |
| 1165 | }\r |
| 1166 | \r |
| 1167 | if (Arg != NULL) {\r |
| 1168 | return EFI_ABORTED;\r |
| 1169 | }\r |
| 1170 | \r |
| 1171 | return EFI_SUCCESS;\r |
| 1172 | }\r |
| 1173 | \r |
| 1174 | \r |
| 1175 | /**\r |
| 1176 | This function removes all the Wrap datas in the RcvdDgramQue.\r |
| 1177 | \r |
| 1178 | @param[in] Instance Pointer to the Udp6 Instance.\r |
| 1179 | \r |
| 1180 | **/\r |
| 1181 | VOID\r |
| 1182 | Udp6FlushRcvdDgram (\r |
| 1183 | IN UDP6_INSTANCE_DATA *Instance\r |
| 1184 | )\r |
| 1185 | {\r |
| 1186 | UDP6_RXDATA_WRAP *Wrap;\r |
| 1187 | \r |
| 1188 | while (!IsListEmpty (&Instance->RcvdDgramQue)) {\r |
| 1189 | //\r |
| 1190 | // Iterate all the Wraps in the RcvdDgramQue.\r |
| 1191 | //\r |
| 1192 | Wrap = NET_LIST_HEAD (&Instance->RcvdDgramQue, UDP6_RXDATA_WRAP, Link);\r |
| 1193 | \r |
| 1194 | //\r |
| 1195 | // The Wrap will be removed from the RcvdDgramQue by this function call.\r |
| 1196 | //\r |
| 1197 | Udp6RecycleRxDataWrap (NULL, (VOID *) Wrap);\r |
| 1198 | }\r |
| 1199 | }\r |
| 1200 | \r |
| 1201 | \r |
| 1202 | \r |
| 1203 | /**\r |
| 1204 | Cancel Udp6 tokens from the Udp6 instance.\r |
| 1205 | \r |
| 1206 | @param[in] Instance Pointer to the udp instance context data.\r |
| 1207 | @param[in] Token Pointer to the token to be canceled. If NULL, all\r |
| 1208 | tokens in this instance will be cancelled.\r |
| 1209 | This parameter is optional and may be NULL.\r |
| 1210 | \r |
| 1211 | @retval EFI_SUCCESS The Token is cancelled.\r |
| 1212 | @retval EFI_NOT_FOUND The Token is not found.\r |
| 1213 | \r |
| 1214 | **/\r |
| 1215 | EFI_STATUS\r |
| 1216 | Udp6InstanceCancelToken (\r |
| 1217 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 1218 | IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL\r |
| 1219 | )\r |
| 1220 | {\r |
| 1221 | EFI_STATUS Status;\r |
| 1222 | \r |
| 1223 | //\r |
| 1224 | // Cancel this token from the TxTokens map.\r |
| 1225 | //\r |
| 1226 | Status = NetMapIterate (&Instance->TxTokens, Udp6CancelTokens, Token);\r |
| 1227 | \r |
| 1228 | if ((Token != NULL) && (Status == EFI_ABORTED)) {\r |
| 1229 | //\r |
| 1230 | // If Token isn't NULL and Status is EFI_ABORTED, the token is cancelled from\r |
| 1231 | // the TxTokens and returns success.\r |
| 1232 | //\r |
| 1233 | return EFI_SUCCESS;\r |
| 1234 | }\r |
| 1235 | \r |
| 1236 | //\r |
| 1237 | // Try to cancel this token from the RxTokens map in condition either the Token\r |
| 1238 | // is NULL or the specified Token is not in TxTokens.\r |
| 1239 | //\r |
| 1240 | Status = NetMapIterate (&Instance->RxTokens, Udp6CancelTokens, Token);\r |
| 1241 | \r |
| 1242 | if ((Token != NULL) && (Status == EFI_SUCCESS)) {\r |
| 1243 | //\r |
| 1244 | // If Token isn't NULL and Status is EFI_SUCCESS, the token is neither in the\r |
| 1245 | // TxTokens nor the RxTokens, or say, it's not found.\r |
| 1246 | //\r |
| 1247 | return EFI_NOT_FOUND;\r |
| 1248 | }\r |
| 1249 | \r |
| 1250 | ASSERT ((Token != NULL) ||\r |
| 1251 | ((0 == NetMapGetCount (&Instance->TxTokens)) &&\r |
| 1252 | (0 == NetMapGetCount (&Instance->RxTokens)))\r |
| 1253 | );\r |
| 1254 | \r |
| 1255 | return EFI_SUCCESS;\r |
| 1256 | }\r |
| 1257 | \r |
| 1258 | \r |
| 1259 | /**\r |
| 1260 | This function checks if the received udp datagram matches with the Instance.\r |
| 1261 | \r |
| 1262 | @param[in] Instance Pointer to the udp instance context data.\r |
| 1263 | @param[in] Udp6Session Pointer to the EFI_UDP6_SESSION_DATA abstracted\r |
| 1264 | from the received udp datagram.\r |
| 1265 | \r |
| 1266 | @retval TRUE The udp datagram matches the receiving requirements of the Instance.\r |
| 1267 | @retval FALSE The udp datagram does not matche the receiving requirements of the Instance.\r |
| 1268 | \r |
| 1269 | **/\r |
| 1270 | BOOLEAN\r |
| 1271 | Udp6MatchDgram (\r |
| 1272 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 1273 | IN EFI_UDP6_SESSION_DATA *Udp6Session\r |
| 1274 | )\r |
| 1275 | {\r |
| 1276 | EFI_UDP6_CONFIG_DATA *ConfigData;\r |
| 1277 | EFI_IPv6_ADDRESS Destination;\r |
| 1278 | \r |
| 1279 | ConfigData = &Instance->ConfigData;\r |
| 1280 | \r |
| 1281 | if (ConfigData->AcceptPromiscuous) {\r |
| 1282 | //\r |
| 1283 | // Always matches if this instance is in the promiscuous state.\r |
| 1284 | //\r |
| 1285 | return TRUE;\r |
| 1286 | }\r |
| 1287 | \r |
| 1288 | if ((!ConfigData->AcceptAnyPort && (Udp6Session->DestinationPort != ConfigData->StationPort)) ||\r |
| 1289 | ((ConfigData->RemotePort != 0) && (Udp6Session->SourcePort != ConfigData->RemotePort))\r |
| 1290 | ) {\r |
| 1291 | //\r |
| 1292 | // The local port or the remote port doesn't match.\r |
| 1293 | //\r |
| 1294 | return FALSE;\r |
| 1295 | }\r |
| 1296 | \r |
| 1297 | if (!NetIp6IsUnspecifiedAddr (&ConfigData->RemoteAddress) &&\r |
| 1298 | !EFI_IP6_EQUAL (&ConfigData->RemoteAddress, &Udp6Session->SourceAddress)\r |
| 1299 | ) {\r |
| 1300 | //\r |
| 1301 | // This datagram doesn't come from the instance's specified sender.\r |
| 1302 | //\r |
| 1303 | return FALSE;\r |
| 1304 | }\r |
| 1305 | \r |
| 1306 | if (NetIp6IsUnspecifiedAddr (&ConfigData->StationAddress) ||\r |
| 1307 | EFI_IP6_EQUAL (&Udp6Session->DestinationAddress, &ConfigData->StationAddress)\r |
| 1308 | ) {\r |
| 1309 | //\r |
| 1310 | // The instance is configured to receive datagrams destinated to any station IP or\r |
| 1311 | // the destination address of this datagram matches the configured station IP.\r |
| 1312 | //\r |
| 1313 | return TRUE;\r |
| 1314 | }\r |
| 1315 | \r |
| 1316 | IP6_COPY_ADDRESS (&Destination, &Udp6Session->DestinationAddress);\r |
| 1317 | \r |
| 1318 | if (IP6_IS_MULTICAST (&Destination) &&\r |
| 1319 | (NULL != Udp6MapMultiCastAddr (&Instance->McastIps, &Destination))\r |
| 1320 | ) {\r |
| 1321 | //\r |
| 1322 | // It's a multicast packet and the multicast address is accepted by this instance.\r |
| 1323 | //\r |
| 1324 | return TRUE;\r |
| 1325 | }\r |
| 1326 | \r |
| 1327 | return FALSE;\r |
| 1328 | }\r |
| 1329 | \r |
| 1330 | \r |
| 1331 | /**\r |
| 1332 | This function removes the Wrap specified by Context and release relevant resources.\r |
| 1333 | \r |
| 1334 | @param[in] Event The Event this notify function registered to.\r |
| 1335 | @param[in] Context Pointer to the context data.\r |
| 1336 | \r |
| 1337 | **/\r |
| 1338 | VOID\r |
| 1339 | EFIAPI\r |
| 1340 | Udp6RecycleRxDataWrap (\r |
| 1341 | IN EFI_EVENT Event,\r |
| 1342 | IN VOID *Context\r |
| 1343 | )\r |
| 1344 | {\r |
| 1345 | UDP6_RXDATA_WRAP *Wrap;\r |
| 1346 | \r |
| 1347 | Wrap = (UDP6_RXDATA_WRAP *) Context;\r |
| 1348 | \r |
| 1349 | //\r |
| 1350 | // Remove the Wrap from the list it belongs to.\r |
| 1351 | //\r |
| 1352 | RemoveEntryList (&Wrap->Link);\r |
| 1353 | \r |
| 1354 | //\r |
| 1355 | // Free the Packet associated with this Wrap.\r |
| 1356 | //\r |
| 1357 | NetbufFree (Wrap->Packet);\r |
| 1358 | \r |
| 1359 | //\r |
| 1360 | // Close the event.\r |
| 1361 | //\r |
| 1362 | gBS->CloseEvent (Wrap->RxData.RecycleSignal);\r |
| 1363 | \r |
| 1364 | FreePool (Wrap);\r |
| 1365 | }\r |
| 1366 | \r |
| 1367 | \r |
| 1368 | /**\r |
| 1369 | This function wraps the Packet into RxData.\r |
| 1370 | \r |
| 1371 | @param[in] Instance Pointer to the instance context data.\r |
| 1372 | @param[in] Packet Pointer to the buffer containing the received\r |
| 1373 | datagram.\r |
| 1374 | @param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r |
| 1375 | datagram.\r |
| 1376 | \r |
| 1377 | @return Pointer to the structure wrapping the RxData and the Packet.\r |
| 1378 | \r |
| 1379 | **/\r |
| 1380 | UDP6_RXDATA_WRAP *\r |
| 1381 | Udp6WrapRxData (\r |
| 1382 | IN UDP6_INSTANCE_DATA *Instance,\r |
| 1383 | IN NET_BUF *Packet,\r |
| 1384 | IN EFI_UDP6_RECEIVE_DATA *RxData\r |
| 1385 | )\r |
| 1386 | {\r |
| 1387 | EFI_STATUS Status;\r |
| 1388 | UDP6_RXDATA_WRAP *Wrap;\r |
| 1389 | \r |
| 1390 | //\r |
| 1391 | // Allocate buffer for the Wrap.\r |
| 1392 | //\r |
| 1393 | Wrap = AllocateZeroPool (sizeof (UDP6_RXDATA_WRAP) +\r |
| 1394 | (Packet->BlockOpNum - 1) * sizeof (EFI_UDP6_FRAGMENT_DATA));\r |
| 1395 | if (Wrap == NULL) {\r |
| 1396 | return NULL;\r |
| 1397 | }\r |
| 1398 | \r |
| 1399 | InitializeListHead (&Wrap->Link);\r |
| 1400 | \r |
| 1401 | CopyMem (&Wrap->RxData, RxData, sizeof(EFI_UDP6_RECEIVE_DATA));\r |
| 1402 | //\r |
| 1403 | // Create the Recycle event.\r |
| 1404 | //\r |
| 1405 | Status = gBS->CreateEvent (\r |
| 1406 | EVT_NOTIFY_SIGNAL,\r |
| 1407 | TPL_NOTIFY,\r |
| 1408 | Udp6RecycleRxDataWrap,\r |
| 1409 | Wrap,\r |
| 1410 | &Wrap->RxData.RecycleSignal\r |
| 1411 | );\r |
| 1412 | if (EFI_ERROR (Status)) {\r |
| 1413 | FreePool (Wrap);\r |
| 1414 | return NULL;\r |
| 1415 | }\r |
| 1416 | \r |
| 1417 | Wrap->Packet = Packet;\r |
| 1418 | Wrap->TimeoutTick = Instance->ConfigData.ReceiveTimeout;\r |
| 1419 | \r |
| 1420 | return Wrap;\r |
| 1421 | }\r |
| 1422 | \r |
| 1423 | \r |
| 1424 | /**\r |
| 1425 | This function enqueues the received datagram into the instances' receiving queues.\r |
| 1426 | \r |
| 1427 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 1428 | @param[in] Packet Pointer to the buffer containing the received\r |
| 1429 | datagram.\r |
| 1430 | @param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r |
| 1431 | datagram.\r |
| 1432 | \r |
| 1433 | @return The times this datagram is enqueued.\r |
| 1434 | \r |
| 1435 | **/\r |
| 1436 | UINTN\r |
| 1437 | Udp6EnqueueDgram (\r |
| 1438 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 1439 | IN NET_BUF *Packet,\r |
| 1440 | IN EFI_UDP6_RECEIVE_DATA *RxData\r |
| 1441 | )\r |
| 1442 | {\r |
| 1443 | LIST_ENTRY *Entry;\r |
| 1444 | UDP6_INSTANCE_DATA *Instance;\r |
| 1445 | UDP6_RXDATA_WRAP *Wrap;\r |
| 1446 | UINTN Enqueued;\r |
| 1447 | \r |
| 1448 | Enqueued = 0;\r |
| 1449 | \r |
| 1450 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 1451 | //\r |
| 1452 | // Iterate the instances.\r |
| 1453 | //\r |
| 1454 | Instance = NET_LIST_USER_STRUCT (Entry, UDP6_INSTANCE_DATA, Link);\r |
| 1455 | \r |
| 1456 | if (!Instance->Configured) {\r |
| 1457 | continue;\r |
| 1458 | }\r |
| 1459 | \r |
| 1460 | if (Udp6MatchDgram (Instance, &RxData->UdpSession)) {\r |
| 1461 | //\r |
| 1462 | // Wrap the RxData and put this Wrap into the instances RcvdDgramQue.\r |
| 1463 | //\r |
| 1464 | Wrap = Udp6WrapRxData (Instance, Packet, RxData);\r |
| 1465 | if (Wrap == NULL) {\r |
| 1466 | continue;\r |
| 1467 | }\r |
| 1468 | \r |
| 1469 | NET_GET_REF (Packet);\r |
| 1470 | \r |
| 1471 | InsertTailList (&Instance->RcvdDgramQue, &Wrap->Link);\r |
| 1472 | \r |
| 1473 | Enqueued++;\r |
| 1474 | }\r |
| 1475 | }\r |
| 1476 | \r |
| 1477 | return Enqueued;\r |
| 1478 | }\r |
| 1479 | \r |
| 1480 | \r |
| 1481 | /**\r |
| 1482 | This function delivers the received datagrams to the specified instance.\r |
| 1483 | \r |
| 1484 | @param[in] Instance Pointer to the instance context data.\r |
| 1485 | \r |
| 1486 | **/\r |
| 1487 | VOID\r |
| 1488 | Udp6InstanceDeliverDgram (\r |
| 1489 | IN UDP6_INSTANCE_DATA *Instance\r |
| 1490 | )\r |
| 1491 | {\r |
| 1492 | UDP6_RXDATA_WRAP *Wrap;\r |
| 1493 | EFI_UDP6_COMPLETION_TOKEN *Token;\r |
| 1494 | NET_BUF *Dup;\r |
| 1495 | EFI_UDP6_RECEIVE_DATA *RxData;\r |
| 1496 | EFI_TPL OldTpl;\r |
| 1497 | \r |
| 1498 | if (!IsListEmpty (&Instance->RcvdDgramQue) &&\r |
| 1499 | !NetMapIsEmpty (&Instance->RxTokens)\r |
| 1500 | ) {\r |
| 1501 | \r |
| 1502 | Wrap = NET_LIST_HEAD (&Instance->RcvdDgramQue, UDP6_RXDATA_WRAP, Link);\r |
| 1503 | \r |
| 1504 | if (NET_BUF_SHARED (Wrap->Packet)) {\r |
| 1505 | //\r |
| 1506 | // Duplicate the Packet if it is shared between instances.\r |
| 1507 | //\r |
| 1508 | Dup = NetbufDuplicate (Wrap->Packet, NULL, 0);\r |
| 1509 | if (Dup == NULL) {\r |
| 1510 | return;\r |
| 1511 | }\r |
| 1512 | \r |
| 1513 | NetbufFree (Wrap->Packet);\r |
| 1514 | \r |
| 1515 | Wrap->Packet = Dup;\r |
| 1516 | }\r |
| 1517 | \r |
| 1518 | NetListRemoveHead (&Instance->RcvdDgramQue);\r |
| 1519 | \r |
| 1520 | Token = (EFI_UDP6_COMPLETION_TOKEN *) NetMapRemoveHead (&Instance->RxTokens, NULL);\r |
| 1521 | \r |
| 1522 | //\r |
| 1523 | // Build the FragmentTable and set the FragmentCount in RxData.\r |
| 1524 | //\r |
| 1525 | RxData = &Wrap->RxData;\r |
| 1526 | RxData->FragmentCount = Wrap->Packet->BlockOpNum;\r |
| 1527 | \r |
| 1528 | NetbufBuildExt (\r |
| 1529 | Wrap->Packet,\r |
| 1530 | (NET_FRAGMENT *) RxData->FragmentTable,\r |
| 1531 | &RxData->FragmentCount\r |
| 1532 | );\r |
| 1533 | \r |
| 1534 | Token->Status = EFI_SUCCESS;\r |
| 1535 | Token->Packet.RxData = &Wrap->RxData;\r |
| 1536 | \r |
| 1537 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r |
| 1538 | InsertTailList (&Instance->DeliveredDgramQue, &Wrap->Link);\r |
| 1539 | gBS->RestoreTPL (OldTpl);\r |
| 1540 | \r |
| 1541 | gBS->SignalEvent (Token->Event);\r |
| 1542 | }\r |
| 1543 | }\r |
| 1544 | \r |
| 1545 | \r |
| 1546 | /**\r |
| 1547 | This function delivers the datagrams enqueued in the instances.\r |
| 1548 | \r |
| 1549 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 1550 | \r |
| 1551 | **/\r |
| 1552 | VOID\r |
| 1553 | Udp6DeliverDgram (\r |
| 1554 | IN UDP6_SERVICE_DATA *Udp6Service\r |
| 1555 | )\r |
| 1556 | {\r |
| 1557 | LIST_ENTRY *Entry;\r |
| 1558 | UDP6_INSTANCE_DATA *Instance;\r |
| 1559 | \r |
| 1560 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 1561 | //\r |
| 1562 | // Iterate the instances.\r |
| 1563 | //\r |
| 1564 | Instance = NET_LIST_USER_STRUCT (Entry, UDP6_INSTANCE_DATA, Link);\r |
| 1565 | \r |
| 1566 | if (!Instance->Configured) {\r |
| 1567 | continue;\r |
| 1568 | }\r |
| 1569 | \r |
| 1570 | //\r |
| 1571 | // Deliver the datagrams of this instance.\r |
| 1572 | //\r |
| 1573 | Udp6InstanceDeliverDgram (Instance);\r |
| 1574 | }\r |
| 1575 | }\r |
| 1576 | \r |
| 1577 | \r |
| 1578 | /**\r |
| 1579 | This function demultiplexes the received udp datagram to the appropriate instances.\r |
| 1580 | \r |
| 1581 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 1582 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstrated from\r |
| 1583 | the received datagram.\r |
| 1584 | @param[in] Packet Pointer to the buffer containing the received udp\r |
| 1585 | datagram.\r |
| 1586 | \r |
| 1587 | **/\r |
| 1588 | VOID\r |
| 1589 | Udp6Demultiplex (\r |
| 1590 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 1591 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 1592 | IN NET_BUF *Packet\r |
| 1593 | )\r |
| 1594 | {\r |
| 1595 | EFI_UDP_HEADER *Udp6Header;\r |
| 1596 | UINT16 HeadSum;\r |
| 1597 | EFI_UDP6_RECEIVE_DATA RxData;\r |
| 1598 | EFI_UDP6_SESSION_DATA *Udp6Session;\r |
| 1599 | UINTN Enqueued;\r |
| 1600 | \r |
| 1601 | //\r |
| 1602 | // Get the datagram header from the packet buffer.\r |
| 1603 | //\r |
| 1604 | Udp6Header = (EFI_UDP_HEADER *) NetbufGetByte (Packet, 0, NULL);\r |
| 1605 | ASSERT (Udp6Header != NULL);\r |
| 1606 | \r |
| 1607 | if (Udp6Header->Checksum != 0) {\r |
| 1608 | //\r |
| 1609 | // check the checksum.\r |
| 1610 | //\r |
| 1611 | HeadSum = NetIp6PseudoHeadChecksum (\r |
| 1612 | &NetSession->Source.v6,\r |
| 1613 | &NetSession->Dest.v6,\r |
| 1614 | EFI_IP_PROTO_UDP,\r |
| 1615 | 0\r |
| 1616 | );\r |
| 1617 | \r |
| 1618 | if (Udp6Checksum (Packet, HeadSum) != 0) {\r |
| 1619 | //\r |
| 1620 | // Wrong checksum.\r |
| 1621 | //\r |
| 1622 | return;\r |
| 1623 | }\r |
| 1624 | }\r |
| 1625 | \r |
| 1626 | gRT->GetTime (&RxData.TimeStamp, NULL);\r |
| 1627 | \r |
| 1628 | Udp6Session = &RxData.UdpSession;\r |
| 1629 | Udp6Session->SourcePort = NTOHS (Udp6Header->SrcPort);\r |
| 1630 | Udp6Session->DestinationPort = NTOHS (Udp6Header->DstPort);\r |
| 1631 | \r |
| 1632 | IP6_COPY_ADDRESS (&Udp6Session->SourceAddress, &NetSession->Source);\r |
| 1633 | IP6_COPY_ADDRESS (&Udp6Session->DestinationAddress, &NetSession->Dest);\r |
| 1634 | \r |
| 1635 | //\r |
| 1636 | // Trim the UDP header.\r |
| 1637 | //\r |
| 1638 | NetbufTrim (Packet, UDP6_HEADER_SIZE, TRUE);\r |
| 1639 | \r |
| 1640 | RxData.DataLength = (UINT32) Packet->TotalSize;\r |
| 1641 | \r |
| 1642 | //\r |
| 1643 | // Try to enqueue this datagram into the instances.\r |
| 1644 | //\r |
| 1645 | Enqueued = Udp6EnqueueDgram (Udp6Service, Packet, &RxData);\r |
| 1646 | \r |
| 1647 | if (Enqueued == 0) {\r |
| 1648 | //\r |
| 1649 | // Send the port unreachable ICMP packet before we free this NET_BUF\r |
| 1650 | //\r |
| 1651 | Udp6SendPortUnreach (Udp6Service->IpIo, NetSession, Udp6Header);\r |
| 1652 | }\r |
| 1653 | \r |
| 1654 | //\r |
| 1655 | // Try to free the packet before deliver it.\r |
| 1656 | //\r |
| 1657 | NetbufFree (Packet);\r |
| 1658 | \r |
| 1659 | if (Enqueued > 0) {\r |
| 1660 | //\r |
| 1661 | // Deliver the datagram.\r |
| 1662 | //\r |
| 1663 | Udp6DeliverDgram (Udp6Service);\r |
| 1664 | }\r |
| 1665 | }\r |
| 1666 | \r |
| 1667 | \r |
| 1668 | /**\r |
| 1669 | This function builds and sends out a icmp port unreachable message.\r |
| 1670 | \r |
| 1671 | @param[in] IpIo Pointer to the IP_IO instance.\r |
| 1672 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA of the packet\r |
| 1673 | causes this icmp error message.\r |
| 1674 | @param[in] Udp6Header Pointer to the udp header of the datagram causes\r |
| 1675 | this icmp error message.\r |
| 1676 | \r |
| 1677 | **/\r |
| 1678 | VOID\r |
| 1679 | Udp6SendPortUnreach (\r |
| 1680 | IN IP_IO *IpIo,\r |
| 1681 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 1682 | IN VOID *Udp6Header\r |
| 1683 | )\r |
| 1684 | {\r |
| 1685 | NET_BUF *Packet;\r |
| 1686 | UINT32 Len;\r |
| 1687 | IP6_ICMP_ERROR_HEAD *IcmpErrHdr;\r |
| 1688 | UINT8 *Ptr;\r |
| 1689 | IP_IO_OVERRIDE Override;\r |
| 1690 | IP_IO_IP_INFO *IpSender;\r |
| 1691 | EFI_IP6_MODE_DATA *Ip6ModeData;\r |
| 1692 | EFI_STATUS Status;\r |
| 1693 | EFI_IP6_PROTOCOL *Ip6Protocol;\r |
| 1694 | \r |
| 1695 | Ip6ModeData = NULL;\r |
| 1696 | \r |
| 1697 | //\r |
| 1698 | // An ICMPv6 error message MUST NOT be originated as A packet destined to\r |
| 1699 | // 1) an IPv6 multicast address 2) The IPv6 Unspecified Address\r |
| 1700 | //\r |
| 1701 | if (NetSession->IpVersion == IP_VERSION_6) {\r |
| 1702 | if (NetIp6IsUnspecifiedAddr (&NetSession->Dest.v6) ||\r |
| 1703 | IP6_IS_MULTICAST (&NetSession->Dest.v6)\r |
| 1704 | ) {\r |
| 1705 | goto EXIT;\r |
| 1706 | }\r |
| 1707 | }\r |
| 1708 | \r |
| 1709 | \r |
| 1710 | IpSender = IpIoFindSender (&IpIo, NetSession->IpVersion, &NetSession->Dest);\r |
| 1711 | \r |
| 1712 | //\r |
| 1713 | // Get the Ipv6 Mode Data.\r |
| 1714 | //\r |
| 1715 | Ip6ModeData = AllocateZeroPool (sizeof (EFI_IP6_MODE_DATA));\r |
| 1716 | ASSERT (Ip6ModeData != NULL);\r |
| 1717 | \r |
| 1718 | //\r |
| 1719 | // If not finding the related IpSender use the default IpIo to send out\r |
| 1720 | // the port unreachable ICMP message.\r |
| 1721 | //\r |
| 1722 | if (IpSender == NULL) {\r |
| 1723 | Ip6Protocol = IpIo->Ip.Ip6;\r |
| 1724 | } else {\r |
| 1725 | Ip6Protocol = IpSender->Ip.Ip6;\r |
| 1726 | }\r |
| 1727 | \r |
| 1728 | Status = Ip6Protocol->GetModeData (\r |
| 1729 | Ip6Protocol,\r |
| 1730 | Ip6ModeData,\r |
| 1731 | NULL,\r |
| 1732 | NULL\r |
| 1733 | );\r |
| 1734 | \r |
| 1735 | if (EFI_ERROR (Status)) {\r |
| 1736 | goto EXIT;\r |
| 1737 | }\r |
| 1738 | //\r |
| 1739 | // The ICMP6 packet length, includes whole invoking packet and ICMP6 error header.\r |
| 1740 | //\r |
| 1741 | Len = NetSession->IpHdrLen +\r |
| 1742 | NTOHS(((EFI_UDP_HEADER *) Udp6Header)->Length) +\r |
| 1743 | sizeof (IP6_ICMP_ERROR_HEAD);\r |
| 1744 | \r |
| 1745 | //\r |
| 1746 | // If the ICMP6 packet length larger than IP MTU, adjust its length to MTU.\r |
| 1747 | //\r |
| 1748 | if (Ip6ModeData->MaxPacketSize < Len) {\r |
| 1749 | Len = Ip6ModeData->MaxPacketSize;\r |
| 1750 | }\r |
| 1751 | \r |
| 1752 | //\r |
| 1753 | // Allocate buffer for the icmp error message.\r |
| 1754 | //\r |
| 1755 | Packet = NetbufAlloc (Len);\r |
| 1756 | if (Packet == NULL) {\r |
| 1757 | goto EXIT;\r |
| 1758 | }\r |
| 1759 | \r |
| 1760 | //\r |
| 1761 | // Allocate space for the IP6_ICMP_ERROR_HEAD.\r |
| 1762 | //\r |
| 1763 | IcmpErrHdr = (IP6_ICMP_ERROR_HEAD *) NetbufAllocSpace (Packet, Len, FALSE);\r |
| 1764 | ASSERT (IcmpErrHdr != NULL);\r |
| 1765 | \r |
| 1766 | //\r |
| 1767 | // Set the required fields for the icmp port unreachable message.\r |
| 1768 | //\r |
| 1769 | IcmpErrHdr->Head.Type = ICMP_V6_DEST_UNREACHABLE;\r |
| 1770 | IcmpErrHdr->Head.Code = ICMP_V6_PORT_UNREACHABLE;\r |
| 1771 | IcmpErrHdr->Head.Checksum = 0;\r |
| 1772 | IcmpErrHdr->Fourth = 0;\r |
| 1773 | \r |
| 1774 | //\r |
| 1775 | // Copy as much of invoking Packet as possible without the ICMPv6 packet\r |
| 1776 | // exceeding the minimum Ipv6 MTU. The length of IP6_ICMP_ERROR_HEAD contains\r |
| 1777 | // the length of EFI_IP6_HEADER, so when using the length of IP6_ICMP_ERROR_HEAD\r |
| 1778 | // for pointer movement that fact should be considered.\r |
| 1779 | //\r |
| 1780 | Ptr = (VOID *) &IcmpErrHdr->Head;\r |
| 1781 | Ptr = (UINT8 *) (UINTN) ((UINTN) Ptr + sizeof (IP6_ICMP_ERROR_HEAD) - sizeof (EFI_IP6_HEADER));\r |
| 1782 | CopyMem (Ptr, NetSession->IpHdr.Ip6Hdr, NetSession->IpHdrLen);\r |
| 1783 | CopyMem (\r |
| 1784 | Ptr + NetSession->IpHdrLen,\r |
| 1785 | Udp6Header,\r |
| 1786 | Len - NetSession->IpHdrLen - sizeof (IP6_ICMP_ERROR_HEAD) + sizeof (EFI_IP6_HEADER)\r |
| 1787 | );\r |
| 1788 | \r |
| 1789 | //\r |
| 1790 | // Set the checksum as zero, and IP6 driver will calcuate it with pseudo header.\r |
| 1791 | //\r |
| 1792 | IcmpErrHdr->Head.Checksum = 0;\r |
| 1793 | \r |
| 1794 | //\r |
| 1795 | // Fill the override data.\r |
| 1796 | //\r |
| 1797 | Override.Ip6OverrideData.FlowLabel = 0;\r |
| 1798 | Override.Ip6OverrideData.HopLimit = 255;\r |
| 1799 | Override.Ip6OverrideData.Protocol = IP6_ICMP;\r |
| 1800 | \r |
| 1801 | //\r |
| 1802 | // Send out this icmp packet.\r |
| 1803 | //\r |
| 1804 | IpIoSend (IpIo, Packet, IpSender, NULL, NULL, &NetSession->Source, &Override);\r |
| 1805 | \r |
| 1806 | NetbufFree (Packet);\r |
| 1807 | \r |
| 1808 | EXIT:\r |
| 1809 | if (Ip6ModeData != NULL) {\r |
| 1810 | FreePool (Ip6ModeData);\r |
| 1811 | }\r |
| 1812 | }\r |
| 1813 | \r |
| 1814 | \r |
| 1815 | /**\r |
| 1816 | This function handles the received Icmp Error message and de-multiplexes it to the\r |
| 1817 | instance.\r |
| 1818 | \r |
| 1819 | @param[in] Udp6Service Pointer to the udp service context data.\r |
| 1820 | @param[in] IcmpError The icmp error code.\r |
| 1821 | @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstracted\r |
| 1822 | from the received Icmp Error packet.\r |
| 1823 | @param[in, out] Packet Pointer to the Icmp Error packet.\r |
| 1824 | \r |
| 1825 | **/\r |
| 1826 | VOID\r |
| 1827 | Udp6IcmpHandler (\r |
| 1828 | IN UDP6_SERVICE_DATA *Udp6Service,\r |
| 1829 | IN UINT8 IcmpError,\r |
| 1830 | IN EFI_NET_SESSION_DATA *NetSession,\r |
| 1831 | IN OUT NET_BUF *Packet\r |
| 1832 | )\r |
| 1833 | {\r |
| 1834 | EFI_UDP_HEADER *Udp6Header;\r |
| 1835 | EFI_UDP6_SESSION_DATA Udp6Session;\r |
| 1836 | LIST_ENTRY *Entry;\r |
| 1837 | UDP6_INSTANCE_DATA *Instance;\r |
| 1838 | \r |
| 1839 | Udp6Header = (EFI_UDP_HEADER *) NetbufGetByte (Packet, 0, NULL);\r |
| 1840 | ASSERT (Udp6Header != NULL);\r |
| 1841 | \r |
| 1842 | IP6_COPY_ADDRESS (&Udp6Session.SourceAddress, &NetSession->Source);\r |
| 1843 | IP6_COPY_ADDRESS (&Udp6Session.DestinationAddress, &NetSession->Dest);\r |
| 1844 | \r |
| 1845 | Udp6Session.SourcePort = NTOHS (Udp6Header->DstPort);\r |
| 1846 | Udp6Session.DestinationPort = NTOHS (Udp6Header->SrcPort);\r |
| 1847 | \r |
| 1848 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 1849 | //\r |
| 1850 | // Iterate all the instances.\r |
| 1851 | //\r |
| 1852 | Instance = NET_LIST_USER_STRUCT (Entry, UDP6_INSTANCE_DATA, Link);\r |
| 1853 | \r |
| 1854 | if (!Instance->Configured) {\r |
| 1855 | continue;\r |
| 1856 | }\r |
| 1857 | \r |
| 1858 | if (Udp6MatchDgram (Instance, &Udp6Session)) {\r |
| 1859 | //\r |
| 1860 | // Translate the Icmp Error code according to the udp spec.\r |
| 1861 | //\r |
| 1862 | Instance->IcmpError = IpIoGetIcmpErrStatus (IcmpError, IP_VERSION_6, NULL, NULL);\r |
| 1863 | \r |
| 1864 | if (IcmpError > ICMP_ERR_UNREACH_PORT) {\r |
| 1865 | Instance->IcmpError = EFI_ICMP_ERROR;\r |
| 1866 | }\r |
| 1867 | \r |
| 1868 | //\r |
| 1869 | // Notify the instance with the received Icmp Error.\r |
| 1870 | //\r |
| 1871 | Udp6ReportIcmpError (Instance);\r |
| 1872 | \r |
| 1873 | break;\r |
| 1874 | }\r |
| 1875 | }\r |
| 1876 | \r |
| 1877 | NetbufFree (Packet);\r |
| 1878 | }\r |
| 1879 | \r |
| 1880 | \r |
| 1881 | /**\r |
| 1882 | This function reports the received ICMP error.\r |
| 1883 | \r |
| 1884 | @param[in] Instance Pointer to the udp instance context data.\r |
| 1885 | \r |
| 1886 | **/\r |
| 1887 | VOID\r |
| 1888 | Udp6ReportIcmpError (\r |
| 1889 | IN UDP6_INSTANCE_DATA *Instance\r |
| 1890 | )\r |
| 1891 | {\r |
| 1892 | EFI_UDP6_COMPLETION_TOKEN *Token;\r |
| 1893 | \r |
| 1894 | if (NetMapIsEmpty (&Instance->RxTokens)) {\r |
| 1895 | //\r |
| 1896 | // There are no receive tokens to deliver the ICMP error.\r |
| 1897 | //\r |
| 1898 | return;\r |
| 1899 | }\r |
| 1900 | \r |
| 1901 | if (EFI_ERROR (Instance->IcmpError)) {\r |
| 1902 | //\r |
| 1903 | // Try to get a RxToken from the RxTokens map.\r |
| 1904 | //\r |
| 1905 | Token = (EFI_UDP6_COMPLETION_TOKEN *) NetMapRemoveHead (&Instance->RxTokens, NULL);\r |
| 1906 | \r |
| 1907 | if (Token != NULL) {\r |
| 1908 | //\r |
| 1909 | // Report the error through the Token.\r |
| 1910 | //\r |
| 1911 | Token->Status = Instance->IcmpError;\r |
| 1912 | gBS->SignalEvent (Token->Event);\r |
| 1913 | \r |
| 1914 | //\r |
| 1915 | // Clear the IcmpError.\r |
| 1916 | //\r |
| 1917 | Instance->IcmpError = EFI_SUCCESS;\r |
| 1918 | }\r |
| 1919 | }\r |
| 1920 | }\r |
| 1921 | \r |
| 1922 | \r |
| 1923 | /**\r |
| 1924 | This function is a dummy ext-free function for the NET_BUF created for the output\r |
| 1925 | udp datagram.\r |
| 1926 | \r |
| 1927 | @param[in] Context Pointer to the context data.\r |
| 1928 | \r |
| 1929 | **/\r |
| 1930 | VOID\r |
| 1931 | EFIAPI\r |
| 1932 | Udp6NetVectorExtFree (\r |
| 1933 | IN VOID *Context\r |
| 1934 | )\r |
| 1935 | {\r |
| 1936 | }\r |
| 1937 | \r |
| 1938 | \r |
| 1939 | /**\r |
| 1940 | Set the Udp6 variable data.\r |
| 1941 | \r |
| 1942 | @param[in] Udp6Service Udp6 service data.\r |
| 1943 | \r |
| 1944 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to set the\r |
| 1945 | variable.\r |
| 1946 | @retval other Set variable failed.\r |
| 1947 | \r |
| 1948 | **/\r |
| 1949 | EFI_STATUS\r |
| 1950 | Udp6SetVariableData (\r |
| 1951 | IN UDP6_SERVICE_DATA *Udp6Service\r |
| 1952 | )\r |
| 1953 | {\r |
| 1954 | UINT32 NumConfiguredInstance;\r |
| 1955 | LIST_ENTRY *Entry;\r |
| 1956 | UINTN VariableDataSize;\r |
| 1957 | EFI_UDP6_VARIABLE_DATA *Udp6VariableData;\r |
| 1958 | EFI_UDP6_SERVICE_POINT *Udp6ServicePoint;\r |
| 1959 | UDP6_INSTANCE_DATA *Udp6Instance;\r |
| 1960 | CHAR16 *NewMacString;\r |
| 1961 | EFI_STATUS Status;\r |
| 1962 | \r |
| 1963 | NumConfiguredInstance = 0;\r |
| 1964 | \r |
| 1965 | //\r |
| 1966 | // Go through the children list to count the configured children.\r |
| 1967 | //\r |
| 1968 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 1969 | Udp6Instance = NET_LIST_USER_STRUCT_S (\r |
| 1970 | Entry,\r |
| 1971 | UDP6_INSTANCE_DATA,\r |
| 1972 | Link,\r |
| 1973 | UDP6_INSTANCE_DATA_SIGNATURE\r |
| 1974 | );\r |
| 1975 | \r |
| 1976 | if (Udp6Instance->Configured) {\r |
| 1977 | NumConfiguredInstance++;\r |
| 1978 | }\r |
| 1979 | }\r |
| 1980 | \r |
| 1981 | //\r |
| 1982 | // Calculate the size of the Udp6VariableData. As there may be no Udp6 child,\r |
| 1983 | // we should add extra buffer for the service points only if the number of configured\r |
| 1984 | // children is more than 1.\r |
| 1985 | //\r |
| 1986 | VariableDataSize = sizeof (EFI_UDP6_VARIABLE_DATA);\r |
| 1987 | \r |
| 1988 | if (NumConfiguredInstance > 1) {\r |
| 1989 | VariableDataSize += sizeof (EFI_UDP6_SERVICE_POINT) * (NumConfiguredInstance - 1);\r |
| 1990 | }\r |
| 1991 | \r |
| 1992 | Udp6VariableData = AllocateZeroPool (VariableDataSize);\r |
| 1993 | if (Udp6VariableData == NULL) {\r |
| 1994 | return EFI_OUT_OF_RESOURCES;\r |
| 1995 | }\r |
| 1996 | \r |
| 1997 | Udp6VariableData->DriverHandle = Udp6Service->ImageHandle;\r |
| 1998 | Udp6VariableData->ServiceCount = NumConfiguredInstance;\r |
| 1999 | \r |
| 2000 | Udp6ServicePoint = &Udp6VariableData->Services[0];\r |
| 2001 | \r |
| 2002 | //\r |
| 2003 | // Go through the children list to fill the configured children's address pairs.\r |
| 2004 | //\r |
| 2005 | NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r |
| 2006 | Udp6Instance = NET_LIST_USER_STRUCT_S (\r |
| 2007 | Entry,\r |
| 2008 | UDP6_INSTANCE_DATA,\r |
| 2009 | Link,\r |
| 2010 | UDP6_INSTANCE_DATA_SIGNATURE\r |
| 2011 | );\r |
| 2012 | \r |
| 2013 | if (Udp6Instance->Configured) {\r |
| 2014 | Udp6ServicePoint->InstanceHandle = Udp6Instance->ChildHandle;\r |
| 2015 | Udp6ServicePoint->LocalPort = Udp6Instance->ConfigData.StationPort;\r |
| 2016 | Udp6ServicePoint->RemotePort = Udp6Instance->ConfigData.RemotePort;\r |
| 2017 | \r |
| 2018 | IP6_COPY_ADDRESS (\r |
| 2019 | &Udp6ServicePoint->LocalAddress,\r |
| 2020 | &Udp6Instance->ConfigData.StationAddress\r |
| 2021 | );\r |
| 2022 | IP6_COPY_ADDRESS (\r |
| 2023 | &Udp6ServicePoint->RemoteAddress,\r |
| 2024 | &Udp6Instance->ConfigData.RemoteAddress\r |
| 2025 | );\r |
| 2026 | Udp6ServicePoint++;\r |
| 2027 | }\r |
| 2028 | }\r |
| 2029 | \r |
| 2030 | //\r |
| 2031 | // Get the MAC string.\r |
| 2032 | //\r |
| 2033 | Status = NetLibGetMacString (\r |
| 2034 | Udp6Service->ControllerHandle,\r |
| 2035 | Udp6Service->ImageHandle,\r |
| 2036 | &NewMacString\r |
| 2037 | );\r |
| 2038 | if (EFI_ERROR (Status)) {\r |
| 2039 | goto EXIT;\r |
| 2040 | }\r |
| 2041 | \r |
| 2042 | if (Udp6Service->MacString != NULL) {\r |
| 2043 | //\r |
| 2044 | // The variable is set already, we're going to update it.\r |
| 2045 | //\r |
| 2046 | if (StrCmp (Udp6Service->MacString, NewMacString) != 0) {\r |
| 2047 | //\r |
| 2048 | // The MAC address is changed, delete the previous variable first.\r |
| 2049 | //\r |
| 2050 | gRT->SetVariable (\r |
| 2051 | Udp6Service->MacString,\r |
| 2052 | &gEfiUdp6ServiceBindingProtocolGuid,\r |
| 2053 | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r |
| 2054 | 0,\r |
| 2055 | NULL\r |
| 2056 | );\r |
| 2057 | }\r |
| 2058 | \r |
| 2059 | FreePool (Udp6Service->MacString);\r |
| 2060 | }\r |
| 2061 | \r |
| 2062 | Udp6Service->MacString = NewMacString;\r |
| 2063 | \r |
| 2064 | Status = gRT->SetVariable (\r |
| 2065 | Udp6Service->MacString,\r |
| 2066 | &gEfiUdp6ServiceBindingProtocolGuid,\r |
| 2067 | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r |
| 2068 | VariableDataSize,\r |
| 2069 | (VOID *) Udp6VariableData\r |
| 2070 | );\r |
| 2071 | \r |
| 2072 | EXIT:\r |
| 2073 | \r |
| 2074 | FreePool (Udp6VariableData);\r |
| 2075 | \r |
| 2076 | return Status;\r |
| 2077 | }\r |
| 2078 | \r |
| 2079 | \r |
| 2080 | /**\r |
| 2081 | Clear the variable and free the resource.\r |
| 2082 | \r |
| 2083 | @param[in, out] Udp6Service Udp6 service data.\r |
| 2084 | \r |
| 2085 | **/\r |
| 2086 | VOID\r |
| 2087 | Udp6ClearVariableData (\r |
| 2088 | IN OUT UDP6_SERVICE_DATA *Udp6Service\r |
| 2089 | )\r |
| 2090 | {\r |
| 2091 | ASSERT (Udp6Service->MacString != NULL);\r |
| 2092 | \r |
| 2093 | gRT->SetVariable (\r |
| 2094 | Udp6Service->MacString,\r |
| 2095 | &gEfiUdp6ServiceBindingProtocolGuid,\r |
| 2096 | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r |
| 2097 | 0,\r |
| 2098 | NULL\r |
| 2099 | );\r |
| 2100 | \r |
| 2101 | FreePool (Udp6Service->MacString);\r |
| 2102 | Udp6Service->MacString = NULL;\r |
| 2103 | }\r |
| 2104 | \r |
| 2105 | \r |
| 2106 | /**\r |
| 2107 | Find the key in the netmap.\r |
| 2108 | \r |
| 2109 | @param[in] Map The netmap to search within.\r |
| 2110 | @param[in] Key The key to search.\r |
| 2111 | \r |
| 2112 | @return The point to the item contains the Key, or NULL, if Key isn't in the map.\r |
| 2113 | \r |
| 2114 | **/\r |
| 2115 | NET_MAP_ITEM *\r |
| 2116 | Udp6MapMultiCastAddr (\r |
| 2117 | IN NET_MAP *Map,\r |
| 2118 | IN VOID *Key\r |
| 2119 | )\r |
| 2120 | {\r |
| 2121 | LIST_ENTRY *Entry;\r |
| 2122 | NET_MAP_ITEM *Item;\r |
| 2123 | EFI_IPv6_ADDRESS *Addr;\r |
| 2124 | \r |
| 2125 | ASSERT (Map != NULL);\r |
| 2126 | NET_LIST_FOR_EACH (Entry, &Map->Used) {\r |
| 2127 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r |
| 2128 | Addr = (EFI_IPv6_ADDRESS *) Item->Key;\r |
| 2129 | if (EFI_IP6_EQUAL (Addr, Key)) {\r |
| 2130 | return Item;\r |
| 2131 | }\r |
| 2132 | }\r |
| 2133 | return NULL;\r |
| 2134 | }\r |
| 2135 | \r |