NetworkPkg/Application/Ping6/Ping6.c

   1 /** @file
   2   The implementation for Ping6 application.
   3
   4   Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
   5
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php.
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include <Library/ShellLib.h>
  17 #include <Library/BaseMemoryLib.h>
  18 #include <Library/BaseLib.h>
  19 #include <Library/MemoryAllocationLib.h>
  20 #include <Library/DebugLib.h>
  21 #include <Library/UefiBootServicesTableLib.h>
  22 #include <Library/HiiLib.h>
  23 #include <Library/NetLib.h>
  24
  25 #include <Protocol/Cpu.h>
  26 #include <Protocol/ServiceBinding.h>
  27 #include <Protocol/Ip6.h>
  28 #include <Protocol/Ip6Config.h>
  29
  30 #include "Ping6.h"
  31
  32 SHELL_PARAM_ITEM    Ping6ParamList[] = {
  33   {
  34     L"-l",
  35     TypeValue
  36   },
  37   {
  38     L"-n",
  39     TypeValue
  40   },
  41   {
  42     L"-s",
  43     TypeValue
  44   },
  45   {
  46     L"-?",
  47     TypeFlag
  48   },
  49   {
  50     NULL,
  51     TypeMax
  52   },
  53 };
  54
  55 //
  56 // Global Variables in Ping6 application.
  57 //
  58 EFI_HII_HANDLE    mHiiHandle;
  59 CONST CHAR16      *mIp6DstString;
  60 CONST CHAR16      *mIp6SrcString;
  61 EFI_GUID          mEfiPing6Guid = EFI_PING6_GUID;
  62 UINT64            mFrequency = 0;
  63 /**
  64   Get and caculate the frequency in tick/ms.
  65   The result is saved in the globle variable mFrequency
  66
  67   @retval EFI_SUCCESS    Caculated the frequency successfully.
  68   @retval Others         Failed to caculate the frequency.
  69
  70 **/
  71 EFI_STATUS
  72 Ping6GetFrequency (
  73   VOID
  74   )
  75 {
  76   EFI_STATUS               Status;
  77   EFI_CPU_ARCH_PROTOCOL    *Cpu;
  78   UINT64                   CurrentTick;
  79   UINT64                   TimerPeriod;
  80
  81   Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **) &Cpu);
  82
  83   if (EFI_ERROR (Status)) {
  84     return Status;
  85   }
  86
  87   Status = Cpu->GetTimerValue (Cpu, 0, &CurrentTick, &TimerPeriod);
  88
  89   if (EFI_ERROR (Status)) {
  90     //
  91     // For NT32 Simulator only. 358049 is a similar value to keep timer granularity.
  92     // Set the timer period by ourselves.
  93     //
  94     TimerPeriod = (UINT64) NTTIMERPERIOD;
  95   }
  96   //
  97   // The timer period is in femtosecond (1 femtosecond is 1e-15 second).
  98   // So 1e+12 is divided by timer period to produce the freq in tick/ms.
  99   //
 100   mFrequency = DivU64x64Remainder (1000000000000ULL, TimerPeriod, NULL);
 101
 102   return EFI_SUCCESS;
 103 }
 104
 105 /**
 106   Get and caculate the duration in ms.
 107
 108   @param[in]  Begin    The start point of time.
 109   @param[in]  End      The end point of time.
 110
 111   @return The duration in ms.
 112
 113 **/
 114 UINT64
 115 Ping6CalculateTick (
 116   IN UINT64    Begin,
 117   IN UINT64    End
 118   )
 119 {
 120   ASSERT (End > Begin);
 121   return DivU64x64Remainder (End - Begin, mFrequency, NULL);
 122 }
 123
 124 /**
 125   Destroy IPING6_ICMP6_TX_INFO, and recollect the memory.
 126
 127   @param[in]    TxInfo    The pointer to PING6_ICMP6_TX_INFO.
 128
 129 **/
 130 VOID
 131 Ping6DestroyTxInfo (
 132   IN PING6_ICMP6_TX_INFO    *TxInfo
 133   )
 134 {
 135   EFI_IP6_TRANSMIT_DATA    *TxData;
 136   EFI_IP6_FRAGMENT_DATA    *FragData;
 137   UINTN                    Index;
 138
 139   ASSERT (TxInfo != NULL);
 140
 141   if (TxInfo->Token != NULL) {
 142
 143     if (TxInfo->Token->Event != NULL) {
 144       gBS->CloseEvent (TxInfo->Token->Event);
 145     }
 146
 147     TxData = TxInfo->Token->Packet.TxData;
 148     if (TxData != NULL) {
 149
 150       if (TxData->OverrideData != NULL) {
 151         FreePool (TxData->OverrideData);
 152       }
 153
 154       if (TxData->ExtHdrs != NULL) {
 155         FreePool (TxData->ExtHdrs);
 156       }
 157
 158       for (Index = 0; Index < TxData->FragmentCount; Index++) {
 159         FragData = TxData->FragmentTable[Index].FragmentBuffer;
 160         if (FragData != NULL) {
 161           FreePool (FragData);
 162         }
 163       }
 164     }
 165
 166     FreePool (TxInfo->Token);
 167   }
 168
 169   FreePool (TxInfo);
 170 }
 171
 172 /**
 173   Match the request, and reply with SequenceNum/TimeStamp.
 174
 175   @param[in]    Private    The pointer to PING6_PRIVATE_DATA.
 176   @param[in]    Packet     The pointer to ICMP6_ECHO_REQUEST_REPLY.
 177
 178   @retval EFI_SUCCESS      The match is successful.
 179   @retval EFI_NOT_FOUND    The reply can't be matched with any request.
 180
 181 **/
 182 EFI_STATUS
 183 Ping6MatchEchoReply (
 184   IN PING6_PRIVATE_DATA          *Private,
 185   IN ICMP6_ECHO_REQUEST_REPLY    *Packet
 186   )
 187 {
 188   PING6_ICMP6_TX_INFO    *TxInfo;
 189   LIST_ENTRY             *Entry;
 190   LIST_ENTRY             *NextEntry;
 191
 192   NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
 193     TxInfo = BASE_CR (Entry, PING6_ICMP6_TX_INFO, Link);
 194
 195     if ((TxInfo->SequenceNum == Packet->SequenceNum) && (TxInfo->TimeStamp == Packet->TimeStamp)) {
 196       Private->RxCount++;
 197       RemoveEntryList (&TxInfo->Link);
 198       Ping6DestroyTxInfo (TxInfo);
 199       return EFI_SUCCESS;
 200     }
 201   }
 202
 203   return EFI_NOT_FOUND;
 204 }
 205
 206 /**
 207   The original intention is to send a request.
 208   Currently, the application retransmits an icmp6 echo request packet
 209   per second in sendnumber times that is specified by the user.
 210   Because nothing can be done here, all things move to the timer rountine.
 211
 212   @param[in]    Event      A EFI_EVENT type event.
 213   @param[in]    Context    The pointer to Context.
 214
 215 **/
 216 VOID
 217 EFIAPI
 218 Ping6OnEchoRequestSent (
 219   IN EFI_EVENT    Event,
 220   IN VOID         *Context
 221   )
 222 {
 223 }
 224
 225 /**
 226   receive reply, match and print reply infomation.
 227
 228   @param[in]    Event      A EFI_EVENT type event.
 229   @param[in]    Context    The pointer to context.
 230
 231 **/
 232 VOID
 233 EFIAPI
 234 Ping6OnEchoReplyReceived (
 235   IN EFI_EVENT    Event,
 236   IN VOID         *Context
 237   )
 238 {
 239   EFI_STATUS                  Status;
 240   PING6_PRIVATE_DATA          *Private;
 241   EFI_IP6_COMPLETION_TOKEN    *RxToken;
 242   EFI_IP6_RECEIVE_DATA        *RxData;
 243   ICMP6_ECHO_REQUEST_REPLY    *Reply;
 244   UINT32                      PayLoad;
 245   UINT64                      Rtt;
 246   CHAR8                       Near;
 247
 248   Private = (PING6_PRIVATE_DATA *) Context;
 249
 250   if (Private->Status == EFI_ABORTED) {
 251     return;
 252   }
 253
 254   RxToken = &Private->RxToken;
 255   RxData  = RxToken->Packet.RxData;
 256   Reply   = RxData->FragmentTable[0].FragmentBuffer;
 257   PayLoad = RxData->DataLength;
 258
 259   if (RxData->Header->NextHeader != IP6_ICMP) {
 260     goto ON_EXIT;
 261   }
 262
 263   if (!IP6_IS_MULTICAST (&Private->DstAddress) &&
 264       !EFI_IP6_EQUAL (&RxData->Header->SourceAddress, &Private->DstAddress)) {
 265     goto ON_EXIT;
 266   }
 267
 268   if ((Reply->Type != ICMP_V6_ECHO_REPLY) || (Reply->Code != 0)) {
 269     goto ON_EXIT;
 270   }
 271
 272   if (PayLoad != Private->BufferSize) {
 273     goto ON_EXIT;
 274   }
 275   //
 276   // Check whether the reply matches the sent request before.
 277   //
 278   Status = Ping6MatchEchoReply (Private, Reply);
 279   if (EFI_ERROR(Status)) {
 280     goto ON_EXIT;
 281   }
 282   //
 283   // Display statistics on this icmp6 echo reply packet.
 284   //
 285   Rtt  = Ping6CalculateTick (Reply->TimeStamp, ReadTime ());
 286   if (Rtt != 0) {
 287     Near = (CHAR8) '=';
 288   } else {
 289     Near = (CHAR8) '<';
 290   }
 291
 292   Private->RttSum += Rtt;
 293   Private->RttMin  = Private->RttMin > Rtt ? Rtt : Private->RttMin;
 294   Private->RttMax  = Private->RttMax < Rtt ? Rtt : Private->RttMax;
 295
 296   ShellPrintHiiEx (
 297     -1,
 298     -1,
 299     NULL,
 300     STRING_TOKEN (STR_PING6_REPLY_INFO),
 301     mHiiHandle,
 302     PayLoad,
 303     mIp6DstString,
 304     Reply->SequenceNum,
 305     RxData->Header->HopLimit,
 306     Near,
 307     Rtt
 308     );
 309
 310 ON_EXIT:
 311
 312   if (Private->RxCount < Private->SendNum) {
 313     //
 314     // Continue to receive icmp6 echo reply packets.
 315     //
 316     RxToken->Status = EFI_ABORTED;
 317
 318     Status = Private->Ip6->Receive (Private->Ip6, RxToken);
 319
 320     if (EFI_ERROR (Status)) {
 321       Private->Status = EFI_ABORTED;
 322     }
 323   } else {
 324     //
 325     // All reply have already been received from the dest host.
 326     //
 327     Private->Status = EFI_SUCCESS;
 328   }
 329   //
 330   // Singal to recycle the each rxdata here, not at the end of process.
 331   //
 332   gBS->SignalEvent (RxData->RecycleSignal);
 333 }
 334
 335 /**
 336   Initial EFI_IP6_COMPLETION_TOKEN.
 337
 338   @param[in]    Private        The pointer of PING6_PRIVATE_DATA.
 339   @param[in]    TimeStamp      The TimeStamp of request.
 340   @param[in]    SequenceNum    The SequenceNum of request.
 341
 342   @return The pointer of EFI_IP6_COMPLETION_TOKEN.
 343
 344 **/
 345 EFI_IP6_COMPLETION_TOKEN *
 346 Ping6GenerateToken (
 347   IN PING6_PRIVATE_DATA    *Private,
 348   IN UINT64                TimeStamp,
 349   IN UINT16                SequenceNum
 350   )
 351 {
 352   EFI_STATUS                  Status;
 353   EFI_IP6_COMPLETION_TOKEN    *Token;
 354   EFI_IP6_TRANSMIT_DATA       *TxData;
 355   ICMP6_ECHO_REQUEST_REPLY    *Request;
 356
 357   Request = AllocateZeroPool (Private->BufferSize);
 358
 359   if (Request == NULL) {
 360     return NULL;
 361   }
 362   //
 363   // Assembly icmp6 echo request packet.
 364   //
 365   Request->Type        = ICMP_V6_ECHO_REQUEST;
 366   Request->Code        = 0;
 367   Request->SequenceNum = SequenceNum;
 368   Request->TimeStamp   = TimeStamp;
 369   Request->Identifier  = 0;
 370   //
 371   // Leave check sum to ip6 layer, since it has no idea of source address
 372   // selection.
 373   //
 374   Request->Checksum    = 0;
 375
 376   TxData = AllocateZeroPool (sizeof (EFI_IP6_TRANSMIT_DATA));
 377
 378   if (TxData == NULL) {
 379     FreePool (Request);
 380     return NULL;
 381   }
 382   //
 383   // Assembly ipv6 token for transmit.
 384   //
 385   TxData->OverrideData       = 0;
 386   TxData->ExtHdrsLength      = 0;
 387   TxData->ExtHdrs            = NULL;
 388   TxData->DataLength         = Private->BufferSize;
 389   TxData->FragmentCount      = 1;
 390   TxData->FragmentTable[0].FragmentBuffer = (VOID *) Request;
 391   TxData->FragmentTable[0].FragmentLength = Private->BufferSize;
 392
 393   Token = AllocateZeroPool (sizeof (EFI_IP6_COMPLETION_TOKEN));
 394
 395   if (Token == NULL) {
 396     FreePool (Request);
 397     FreePool (TxData);
 398     return NULL;
 399   }
 400
 401   Token->Status         = EFI_ABORTED;
 402   Token->Packet.TxData  = TxData;
 403
 404   Status = gBS->CreateEvent (
 405                   EVT_NOTIFY_SIGNAL,
 406                   TPL_CALLBACK,
 407                   Ping6OnEchoRequestSent,
 408                   Private,
 409                   &Token->Event
 410                   );
 411
 412   if (EFI_ERROR (Status)) {
 413     FreePool (Request);
 414     FreePool (TxData);
 415     FreePool (Token);
 416     return NULL;
 417   }
 418
 419   return Token;
 420 }
 421
 422 /**
 423   Transmit the EFI_IP6_COMPLETION_TOKEN.
 424
 425   @param[in]    Private    The pointer of PING6_PRIVATE_DATA.
 426
 427   @retval EFI_SUCCESS             Transmitted successfully.
 428   @retval EFI_OUT_OF_RESOURCES    No memory is available on the platform.
 429   @retval others                  Transmitted unsuccessfully.
 430
 431 **/
 432 EFI_STATUS
 433 Ping6SendEchoRequest (
 434   IN PING6_PRIVATE_DATA    *Private
 435   )
 436 {
 437   EFI_STATUS             Status;
 438   PING6_ICMP6_TX_INFO    *TxInfo;
 439
 440   TxInfo = AllocateZeroPool (sizeof (PING6_ICMP6_TX_INFO));
 441
 442   if (TxInfo == NULL) {
 443     return EFI_OUT_OF_RESOURCES;
 444   }
 445
 446   TxInfo->TimeStamp   = ReadTime ();
 447   TxInfo->SequenceNum = (UINT16) (Private->TxCount + 1);
 448
 449   TxInfo->Token       = Ping6GenerateToken (
 450                           Private,
 451                           TxInfo->TimeStamp,
 452                           TxInfo->SequenceNum
 453                           );
 454
 455   if (TxInfo->Token == NULL) {
 456     Ping6DestroyTxInfo (TxInfo);
 457     return EFI_OUT_OF_RESOURCES;
 458   }
 459
 460   Status = Private->Ip6->Transmit (Private->Ip6, TxInfo->Token);
 461
 462   if (EFI_ERROR (Status)) {
 463     Ping6DestroyTxInfo (TxInfo);
 464     return Status;
 465   }
 466
 467   InsertTailList (&Private->TxList, &TxInfo->Link);
 468   Private->TxCount++;
 469
 470   return EFI_SUCCESS;
 471 }
 472
 473 /**
 474   Place a completion token into the receive packet queue to receive the echo reply.
 475
 476   @param[in]    Private    The pointer of PING6_PRIVATE_DATA.
 477
 478   @retval EFI_SUCCESS      Put the token into the receive packet queue successfully.
 479   @retval others           Put the token into the receive packet queue unsuccessfully.
 480
 481 **/
 482 EFI_STATUS
 483 Ping6ReceiveEchoReply (
 484   IN PING6_PRIVATE_DATA    *Private
 485   )
 486 {
 487   EFI_STATUS    Status;
 488
 489   ZeroMem (&Private->RxToken, sizeof (EFI_IP6_COMPLETION_TOKEN));
 490
 491   Status = gBS->CreateEvent (
 492                   EVT_NOTIFY_SIGNAL,
 493                   TPL_CALLBACK,
 494                   Ping6OnEchoReplyReceived,
 495                   Private,
 496                   &Private->RxToken.Event
 497                   );
 498
 499   if (EFI_ERROR (Status)) {
 500     return Status;
 501   }
 502
 503   Private->RxToken.Status = EFI_NOT_READY;
 504
 505   return Private->Ip6->Receive (Private->Ip6, &Private->RxToken);
 506 }
 507
 508 /**
 509   Remove the timeout request from the list.
 510
 511   @param[in]    Event    A EFI_EVENT type event.
 512   @param[in]    Context  The pointer to Context.
 513
 514 **/
 515 VOID
 516 EFIAPI
 517 Ping6OnTimerRoutine (
 518   IN EFI_EVENT    Event,
 519   IN VOID         *Context
 520   )
 521 {
 522   EFI_STATUS             Status;
 523   PING6_PRIVATE_DATA     *Private;
 524   PING6_ICMP6_TX_INFO    *TxInfo;
 525   LIST_ENTRY             *Entry;
 526   LIST_ENTRY             *NextEntry;
 527   UINT64                 Time;
 528
 529   Private = (PING6_PRIVATE_DATA *) Context;
 530
 531   //
 532   // Retransmit icmp6 echo request packets per second in sendnumber times.
 533   //
 534   if (Private->TxCount < Private->SendNum) {
 535
 536     Status = Ping6SendEchoRequest (Private);
 537     if (Private->TxCount != 0){
 538       if (EFI_ERROR (Status)) {
 539         ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_SEND_REQUEST), mHiiHandle, Private->TxCount + 1);
 540       }
 541     }
 542   }
 543   //
 544   // Check whether any icmp6 echo request in the list timeout.
 545   //
 546   NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
 547     TxInfo = BASE_CR (Entry, PING6_ICMP6_TX_INFO, Link);
 548     Time   = Ping6CalculateTick (TxInfo->TimeStamp, ReadTime ());
 549
 550     //
 551     // Remove the timeout echo request from txlist.
 552     //
 553     if (Time > PING6_DEFAULT_TIMEOUT) {
 554
 555       if (EFI_ERROR (TxInfo->Token->Status)) {
 556         Private->Ip6->Cancel (Private->Ip6, TxInfo->Token);
 557       }
 558       //
 559       // Remove the timeout icmp6 echo request from list.
 560       //
 561       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_TIMEOUT), mHiiHandle, TxInfo->SequenceNum);
 562
 563       RemoveEntryList (&TxInfo->Link);
 564       Ping6DestroyTxInfo (TxInfo);
 565
 566       if (IsListEmpty (&Private->TxList) && (Private->TxCount == Private->SendNum)) {
 567         //
 568         // All the left icmp6 echo request in the list timeout.
 569         //
 570         Private->Status = EFI_TIMEOUT;
 571       }
 572     }
 573   }
 574 }
 575
 576 /**
 577   Create a valid IP6 instance.
 578
 579   @param[in]    Private    The pointer of PING6_PRIVATE_DATA.
 580
 581   @retval EFI_SUCCESS              Create a valid IP6 instance successfully.
 582   @retval EFI_ABORTED              Locate handle with ip6 service binding protocol unsuccessfully.
 583   @retval EFI_INVALID_PARAMETER    The source address is unspecified when the destination address is a link -ocal address.
 584   @retval EFI_OUT_OF_RESOURCES     No memory is available on the platform.
 585   @retval EFI_NOT_FOUND            The source address is not found.
 586 **/
 587 EFI_STATUS
 588 Ping6CreateIp6Instance (
 589   IN  PING6_PRIVATE_DATA    *Private
 590   )
 591 {
 592   EFI_STATUS                       Status;
 593   UINTN                            HandleIndex;
 594   UINTN                            HandleNum;
 595   EFI_HANDLE                       *HandleBuffer;
 596   EFI_SERVICE_BINDING_PROTOCOL     *Ip6Sb;
 597   EFI_IP6_CONFIG_PROTOCOL          *Ip6Cfg;
 598   EFI_IP6_CONFIG_DATA              Ip6Config;
 599   EFI_IP6_CONFIG_INTERFACE_INFO    *IfInfo;
 600   UINTN                            IfInfoSize;
 601   EFI_IPv6_ADDRESS                 *Addr;
 602   UINTN                            AddrIndex;
 603
 604   HandleBuffer = NULL;
 605   Ip6Sb        = NULL;
 606   IfInfo       = NULL;
 607   IfInfoSize   = 0;
 608
 609   //
 610   // Locate all the handles with ip6 service binding protocol.
 611   //
 612   Status = gBS->LocateHandleBuffer (
 613                   ByProtocol,
 614                   &gEfiIp6ServiceBindingProtocolGuid,
 615                   NULL,
 616                   &HandleNum,
 617                   &HandleBuffer
 618                   );
 619   if (EFI_ERROR (Status) || (HandleNum == 0)) {
 620     return EFI_ABORTED;
 621   }
 622   //
 623   // Source address is required when pinging a link-local address on multi-
 624   // interfaces host.
 625   //
 626   if (NetIp6IsLinkLocalAddr (&Private->DstAddress) &&
 627       NetIp6IsUnspecifiedAddr (&Private->SrcAddress) &&
 628       (HandleNum > 1)) {
 629     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_SOURCE), mHiiHandle);
 630     Status = EFI_INVALID_PARAMETER;
 631     goto ON_ERROR;
 632   }
 633   //
 634   // For each ip6 protocol, check interface addresses list.
 635   //
 636   for (HandleIndex = 0; HandleIndex < HandleNum; HandleIndex++) {
 637
 638     Ip6Sb      = NULL;
 639     IfInfo     = NULL;
 640     IfInfoSize = 0;
 641
 642     Status = gBS->HandleProtocol (
 643                     HandleBuffer[HandleIndex],
 644                     &gEfiIp6ServiceBindingProtocolGuid,
 645                     (VOID **) &Ip6Sb
 646                     );
 647     if (EFI_ERROR (Status)) {
 648       goto ON_ERROR;
 649     }
 650
 651     if (NetIp6IsUnspecifiedAddr (&Private->SrcAddress)) {
 652       //
 653       // No need to match interface address.
 654       //
 655       break;
 656     } else {
 657       //
 658       // Ip6config protocol and ip6 service binding protocol are installed
 659       // on the same handle.
 660       //
 661       Status = gBS->HandleProtocol (
 662                       HandleBuffer[HandleIndex],
 663                       &gEfiIp6ConfigProtocolGuid,
 664                       (VOID **) &Ip6Cfg
 665                       );
 666
 667       if (EFI_ERROR (Status)) {
 668         goto ON_ERROR;
 669       }
 670       //
 671       // Get the interface information size.
 672       //
 673       Status = Ip6Cfg->GetData (
 674                          Ip6Cfg,
 675                          Ip6ConfigDataTypeInterfaceInfo,
 676                          &IfInfoSize,
 677                          NULL
 678                          );
 679
 680       if (Status != EFI_BUFFER_TOO_SMALL) {
 681         ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_IP6CFG_GETDATA), mHiiHandle, Status);
 682         goto ON_ERROR;
 683       }
 684
 685       IfInfo = AllocateZeroPool (IfInfoSize);
 686
 687       if (IfInfo == NULL) {
 688         Status = EFI_OUT_OF_RESOURCES;
 689         goto ON_ERROR;
 690       }
 691       //
 692       // Get the interface info.
 693       //
 694       Status = Ip6Cfg->GetData (
 695                          Ip6Cfg,
 696                          Ip6ConfigDataTypeInterfaceInfo,
 697                          &IfInfoSize,
 698                          IfInfo
 699                          );
 700
 701       if (EFI_ERROR (Status)) {
 702         ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_IP6CFG_GETDATA), mHiiHandle, Status);
 703         goto ON_ERROR;
 704       }
 705       //
 706       // Check whether the source address is one of the interface addresses.
 707       //
 708       for (AddrIndex = 0; AddrIndex < IfInfo->AddressInfoCount; AddrIndex++) {
 709
 710         Addr = &(IfInfo->AddressInfo[AddrIndex].Address);
 711         if (EFI_IP6_EQUAL (&Private->SrcAddress, Addr)) {
 712           //
 713           // Match a certain interface address.
 714           //
 715           break;
 716         }
 717       }
 718
 719       if (AddrIndex < IfInfo->AddressInfoCount) {
 720         //
 721         // Found a nic handle with right interface address.
 722         //
 723         break;
 724       }
 725     }
 726
 727     FreePool (IfInfo);
 728     IfInfo = NULL;
 729   }
 730   //
 731   // No exact interface address matched.
 732   //
 733
 734   if (HandleIndex == HandleNum) {
 735     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_SOURCE_NOT_FOUND), mHiiHandle, mIp6SrcString);
 736     Status = EFI_NOT_FOUND;
 737     goto ON_ERROR;
 738   }
 739
 740   Private->NicHandle = HandleBuffer[HandleIndex];
 741
 742   ASSERT (Ip6Sb != NULL);
 743   Status = Ip6Sb->CreateChild (Ip6Sb, &Private->Ip6ChildHandle);
 744
 745   if (EFI_ERROR (Status)) {
 746     goto ON_ERROR;
 747   }
 748
 749   Status = gBS->OpenProtocol (
 750                   Private->Ip6ChildHandle,
 751                   &gEfiIp6ProtocolGuid,
 752                   (VOID **) &Private->Ip6,
 753                   Private->ImageHandle,
 754                   Private->Ip6ChildHandle,
 755                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 756                   );
 757   if (EFI_ERROR (Status)) {
 758     goto ON_ERROR;
 759   }
 760
 761   ZeroMem (&Ip6Config, sizeof (EFI_IP6_CONFIG_DATA));
 762
 763   //
 764   // Configure the ip6 instance for icmp6 packet exchange.
 765   //
 766   Ip6Config.DefaultProtocol   = 58;
 767   Ip6Config.AcceptAnyProtocol = FALSE;
 768   Ip6Config.AcceptIcmpErrors  = TRUE;
 769   Ip6Config.AcceptPromiscuous = FALSE;
 770   Ip6Config.TrafficClass      = 0;
 771   Ip6Config.HopLimit          = 128;
 772   Ip6Config.FlowLabel         = 0;
 773   Ip6Config.ReceiveTimeout    = 0;
 774   Ip6Config.TransmitTimeout   = 0;
 775
 776   IP6_COPY_ADDRESS (&Ip6Config.StationAddress, &Private->SrcAddress);
 777
 778   IP6_COPY_ADDRESS (&Ip6Config.DestinationAddress, &Private->DstAddress);
 779
 780   Status = Private->Ip6->Configure (Private->Ip6, &Ip6Config);
 781
 782   if (EFI_ERROR (Status)) {
 783     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_IP6_CONFIG), mHiiHandle, Status);
 784     goto ON_ERROR;
 785   }
 786
 787   return EFI_SUCCESS;
 788
 789 ON_ERROR:
 790   if (HandleBuffer != NULL) {
 791     FreePool (HandleBuffer);
 792   }
 793
 794   if (IfInfo != NULL) {
 795     FreePool (IfInfo);
 796   }
 797
 798   if ((Ip6Sb != NULL) && (Private->Ip6ChildHandle != NULL)) {
 799     Ip6Sb->DestroyChild (Ip6Sb, Private->Ip6ChildHandle);
 800   }
 801
 802   return Status;
 803 }
 804
 805 /**
 806   Destory the IP6 instance.
 807
 808   @param[in]    Private    The pointer of PING6_PRIVATE_DATA.
 809
 810 **/
 811 VOID
 812 Ping6DestoryIp6Instance (
 813   IN PING6_PRIVATE_DATA    *Private
 814   )
 815 {
 816   EFI_STATUS                      Status;
 817   EFI_SERVICE_BINDING_PROTOCOL    *Ip6Sb;
 818
 819   gBS->CloseProtocol (
 820          Private->Ip6ChildHandle,
 821          &gEfiIp6ProtocolGuid,
 822          Private->ImageHandle,
 823          Private->Ip6ChildHandle
 824          );
 825
 826   Status = gBS->HandleProtocol (
 827                   Private->NicHandle,
 828                   &gEfiIp6ServiceBindingProtocolGuid,
 829                   (VOID **) &Ip6Sb
 830                   );
 831
 832   if (!EFI_ERROR(Status)) {
 833     Ip6Sb->DestroyChild (Ip6Sb, Private->Ip6ChildHandle);
 834   }
 835 }
 836
 837 /**
 838   The Ping6 Process.
 839
 840   @param[in]   ImageHandle    The firmware allocated handle for the UEFI image.
 841   @param[in]   SendNumber     The send request count.
 842   @param[in]   BufferSize     The send buffer size.
 843   @param[in]   SrcAddress     The source IPv6 address.
 844   @param[in]   DstAddress     The destination IPv6 address.
 845
 846   @retval EFI_SUCCESS    The ping6 processed successfullly.
 847   @retval others         The ping6 processed unsuccessfully.
 848
 849 **/
 850 EFI_STATUS
 851 Ping6 (
 852   IN EFI_HANDLE          ImageHandle,
 853   IN UINT32              SendNumber,
 854   IN UINT32              BufferSize,
 855   IN EFI_IPv6_ADDRESS    *SrcAddress,
 856   IN EFI_IPv6_ADDRESS    *DstAddress
 857   )
 858 {
 859   EFI_STATUS             Status;
 860   EFI_INPUT_KEY          Key;
 861   PING6_PRIVATE_DATA     *Private;
 862   PING6_ICMP6_TX_INFO    *TxInfo;
 863   LIST_ENTRY             *Entry;
 864   LIST_ENTRY             *NextEntry;
 865
 866   Private = AllocateZeroPool (sizeof (PING6_PRIVATE_DATA));
 867
 868   ASSERT (Private != NULL);
 869
 870   Private->ImageHandle = ImageHandle;
 871   Private->SendNum     = SendNumber;
 872   Private->BufferSize  = BufferSize;
 873   Private->RttMin      = ~((UINT64 )(0x0));
 874   Private->Status      = EFI_NOT_READY;
 875
 876   InitializeListHead (&Private->TxList);
 877
 878   IP6_COPY_ADDRESS (&Private->SrcAddress, SrcAddress);
 879   IP6_COPY_ADDRESS (&Private->DstAddress, DstAddress);
 880
 881   //
 882   // Open and configure a ip6 instance for ping6.
 883   //
 884   Status = Ping6CreateIp6Instance (Private);
 885
 886   if (EFI_ERROR (Status)) {
 887     goto ON_EXIT;
 888   }
 889   //
 890   // Print the command line itself.
 891   //
 892   ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_START), mHiiHandle, mIp6DstString, Private->BufferSize);
 893   //
 894   // Create a ipv6 token to receive the first icmp6 echo reply packet.
 895   //
 896   Status = Ping6ReceiveEchoReply (Private);
 897
 898   if (EFI_ERROR (Status)) {
 899     goto ON_EXIT;
 900   }
 901   //
 902   // Create and start timer to send icmp6 echo request packet per second.
 903   //
 904   Status = gBS->CreateEvent (
 905                   EVT_TIMER | EVT_NOTIFY_SIGNAL,
 906                   TPL_CALLBACK,
 907                   Ping6OnTimerRoutine,
 908                   Private,
 909                   &Private->Timer
 910                   );
 911
 912   if (EFI_ERROR (Status)) {
 913     goto ON_EXIT;
 914   }
 915   //
 916   // Create a ipv6 token to send the first icmp6 echo request packet.
 917   //
 918   Status = Ping6SendEchoRequest (Private);
 919   //
 920   // EFI_NOT_READY for IPsec is enable and IKE is not established.
 921   //
 922   if (EFI_ERROR (Status) && (Status != EFI_NOT_READY)) {
 923     if(Status == EFI_NOT_FOUND) {
 924       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_NOSOURCE_INDOMAIN), mHiiHandle, mIp6DstString);
 925     }
 926
 927     goto ON_EXIT;
 928   }
 929
 930   Status = gBS->SetTimer (
 931                   Private->Timer,
 932                   TimerPeriodic,
 933                   PING6_ONE_SECOND
 934                   );
 935
 936   if (EFI_ERROR (Status)) {
 937     goto ON_EXIT;
 938   }
 939   //
 940   // Control the ping6 process by two factors:
 941   // 1. Hot key
 942   // 2. Private->Status
 943   //   2.1. success means all icmp6 echo request packets get reply packets.
 944   //   2.2. timeout means the last icmp6 echo reply request timeout to get reply.
 945   //   2.3. noready means ping6 process is on-the-go.
 946   //
 947   while (Private->Status == EFI_NOT_READY) {
 948     Private->Ip6->Poll (Private->Ip6);
 949
 950     //
 951     // Terminate the ping6 process by 'esc' or 'ctl-c'.
 952     //
 953     Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
 954
 955     if (!EFI_ERROR(Status)) {
 956       if ((Key.UnicodeChar == 0x1b) || (Key.UnicodeChar == 0x03) ||
 957          ((Key.UnicodeChar == 0) && (Key.ScanCode == SCAN_ESC))) {
 958         goto ON_STAT;
 959       }
 960     }
 961   }
 962
 963 ON_STAT:
 964   //
 965   // Display the statistics in all.
 966   //
 967   gBS->SetTimer (Private->Timer, TimerCancel, 0);
 968
 969   if (Private->TxCount != 0) {
 970     ShellPrintHiiEx (
 971       -1,
 972       -1,
 973       NULL,
 974       STRING_TOKEN (STR_PING6_STAT),
 975       mHiiHandle,
 976       Private->TxCount,
 977       Private->RxCount,
 978       (100 * (Private->TxCount - Private->RxCount)) / Private->TxCount,
 979       Private->RttSum
 980       );
 981   }
 982
 983   if (Private->RxCount != 0) {
 984     ShellPrintHiiEx (
 985       -1,
 986       -1,
 987       NULL,
 988       STRING_TOKEN (STR_PING6_RTT),
 989       mHiiHandle,
 990       Private->RttMin,
 991       Private->RttMax,
 992       DivU64x64Remainder (Private->RttSum, Private->RxCount, NULL)
 993       );
 994   }
 995
 996 ON_EXIT:
 997
 998   if (Private != NULL) {
 999     Private->Status = EFI_ABORTED;
1000
1001     NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
1002       TxInfo = BASE_CR (Entry, PING6_ICMP6_TX_INFO, Link);
1003
1004       Status = Private->Ip6->Cancel (Private->Ip6, TxInfo->Token);
1005
1006       RemoveEntryList (&TxInfo->Link);
1007       Ping6DestroyTxInfo (TxInfo);
1008     }
1009
1010     if (Private->Timer != NULL) {
1011       gBS->CloseEvent (Private->Timer);
1012     }
1013
1014     if (Private->Ip6 != NULL) {
1015       Status = Private->Ip6->Cancel (Private->Ip6, &Private->RxToken);
1016     }
1017
1018     if (Private->RxToken.Event != NULL) {
1019       gBS->CloseEvent (Private->RxToken.Event);
1020     }
1021
1022     if (Private->Ip6ChildHandle != NULL) {
1023       Ping6DestoryIp6Instance (Private);
1024     }
1025
1026     FreePool (Private);
1027   }
1028
1029   return Status;
1030 }
1031
1032 /**
1033   This is the declaration of an EFI image entry point. This entry point is
1034   the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers, including
1035   both device drivers and bus drivers.
1036
1037   The entry point for the Ping6 application that parses the command line input and calls the Ping6 process.
1038
1039   @param[in] ImageHandle    The firmware allocated handle for the UEFI image.
1040   @param[in] SystemTable    A pointer to the EFI System Table.
1041
1042   @retval EFI_SUCCESS               The operation completed successfully.
1043   @retval EFI_INVALID_PARAMETETR    Input parameters combination is invalid.
1044   @retval Others                    Some errors occur.
1045
1046 **/
1047 EFI_STATUS
1048 EFIAPI
1049 InitializePing6 (
1050   IN  EFI_HANDLE          ImageHandle,
1051   IN  EFI_SYSTEM_TABLE    *SystemTable
1052   )
1053 {
1054   EFI_STATUS          Status;
1055   EFI_IPv6_ADDRESS    DstAddress;
1056   EFI_IPv6_ADDRESS    SrcAddress;
1057   UINT64              BufferSize;
1058   UINTN               SendNumber;
1059   LIST_ENTRY          *ParamPackage;
1060   CONST CHAR16        *ValueStr;
1061   CONST CHAR16        *ValueStrPtr;
1062   UINTN               NonOptionCount;
1063
1064   //
1065   // Register our string package with HII and return the handle to it.
1066   //
1067   mHiiHandle = HiiAddPackages (&gEfiCallerIdGuid, ImageHandle, Ping6Strings, NULL);
1068   ASSERT (mHiiHandle != NULL);
1069
1070   Status = ShellCommandLineParseEx (Ping6ParamList, &ParamPackage, NULL, TRUE, FALSE);
1071   if (EFI_ERROR(Status)) {
1072     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_INPUT), mHiiHandle);
1073     goto ON_EXIT;
1074   }
1075
1076   if (ShellCommandLineGetFlag (ParamPackage, L"-?")) {
1077     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_HELP), mHiiHandle);
1078     goto ON_EXIT;
1079   }
1080
1081   SendNumber = 10;
1082   BufferSize = 16;
1083
1084   //
1085   // Parse the paramter of count number.
1086   //
1087   ValueStr = ShellCommandLineGetValue (ParamPackage, L"-n");
1088   ValueStrPtr = ValueStr;
1089   if (ValueStr != NULL) {
1090     SendNumber = ShellStrToUintn (ValueStrPtr);
1091
1092     //
1093     // ShellStrToUintn will return 0 when input is 0 or an invalid input string.
1094     //
1095     if ((SendNumber == 0) || (SendNumber > PING6_MAX_SEND_NUMBER)) {
1096       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_SEND_NUMBER), mHiiHandle, ValueStr);
1097       Status = EFI_INVALID_PARAMETER;
1098       goto ON_EXIT;
1099     }
1100   }
1101   //
1102   // Parse the paramter of buffer size.
1103   //
1104   ValueStr = ShellCommandLineGetValue (ParamPackage, L"-l");
1105   ValueStrPtr = ValueStr;
1106   if (ValueStr != NULL) {
1107     BufferSize = ShellStrToUintn (ValueStrPtr);
1108
1109     //
1110     // ShellStrToUintn will return 0 when input is 0 or an invalid input string.
1111     //
1112     if ((BufferSize < 16) || (BufferSize > PING6_MAX_BUFFER_SIZE)) {
1113       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_BUFFER_SIZE), mHiiHandle, ValueStr);
1114       Status = EFI_INVALID_PARAMETER;
1115       goto ON_EXIT;
1116     }
1117   }
1118
1119   ZeroMem (&SrcAddress, sizeof (EFI_IPv6_ADDRESS));
1120   ZeroMem (&DstAddress, sizeof (EFI_IPv6_ADDRESS));
1121
1122   //
1123   // Parse the paramter of source ip address.
1124   //
1125   ValueStr = ShellCommandLineGetValue (ParamPackage, L"-s");
1126   ValueStrPtr = ValueStr;
1127   if (ValueStr != NULL) {
1128     mIp6SrcString = ValueStr;
1129     Status = NetLibStrToIp6 (ValueStrPtr, &SrcAddress);
1130     if (EFI_ERROR (Status)) {
1131       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_IP), mHiiHandle, ValueStr);
1132       Status = EFI_INVALID_PARAMETER;
1133       goto ON_EXIT;
1134     }
1135   }
1136   //
1137   // Parse the paramter of destination ip address.
1138   //
1139   NonOptionCount = ShellCommandLineGetCount(ParamPackage);
1140   ValueStr = ShellCommandLineGetRawValue (ParamPackage, (UINT32)(NonOptionCount-1));
1141   if (NonOptionCount != 2) {
1142     ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_INPUT), mHiiHandle);
1143     Status = EFI_INVALID_PARAMETER;
1144     goto ON_EXIT;
1145   }
1146   ValueStrPtr = ValueStr;
1147   if (ValueStr != NULL) {
1148     mIp6DstString = ValueStr;
1149     Status = NetLibStrToIp6 (ValueStrPtr, &DstAddress);
1150     if (EFI_ERROR (Status)) {
1151       ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING6_INVALID_IP), mHiiHandle, ValueStr);
1152       Status = EFI_INVALID_PARAMETER;
1153       goto ON_EXIT;
1154     }
1155   }
1156   //
1157   // Get frequency to calculate the time from ticks.
1158   //
1159   Status = Ping6GetFrequency ();
1160
1161   if (EFI_ERROR(Status)) {
1162     goto ON_EXIT;
1163   }
1164   //
1165   // Enter into ping6 process.
1166   //
1167   Status = Ping6 (
1168              ImageHandle,
1169              (UINT32)SendNumber,
1170              (UINT32)BufferSize,
1171              &SrcAddress,
1172              &DstAddress
1173              );
1174
1175 ON_EXIT:
1176   ShellCommandLineFreeVarList (ParamPackage);
1177   HiiRemovePackages (mHiiHandle);
1178   return Status;
1179 }