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system76-edk2/ShellPkg/Library/UefiShellNetwork1CommandsLib/Ping.c
Rehan, MohammedX 8a57673316 ShellPkg: Fix Ping GetTimerPeriod API failure 
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3819

Ping GetTimerPeriod API returns sometime zero value when
StallCounter has smaller value than RttTimerTick (divide by zero)
which results some failure at ping UEFI shell command

Signed-off-by: MohammedX Rehan <mohammedx.rehan@intel.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2022-02-16 08:09:46 +00:00

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/** @file
The implementation for Ping shell command.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellNetwork1CommandsLib.h"
#define PING_IP4_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv4_ADDRESS)))
UINT64 mCurrentTick = 0;
//
// Function templates to match the IPv4 and IPv6 commands that we use.
//
typedef
EFI_STATUS
(EFIAPI *PING_IPX_POLL)(
IN VOID *This
);
typedef
EFI_STATUS
(EFIAPI *PING_IPX_TRANSMIT)(
IN VOID *This,
IN VOID *Token
);
typedef
EFI_STATUS
(EFIAPI *PING_IPX_RECEIVE)(
IN VOID *This,
IN VOID *Token
);
typedef
EFI_STATUS
(EFIAPI *PING_IPX_CANCEL)(
IN VOID *This,
IN VOID *Token OPTIONAL
);
///
/// A set of pointers to either IPv6 or IPv4 functions.
/// Unknown which one to the ping command.
///
typedef struct {
PING_IPX_TRANSMIT Transmit;
PING_IPX_RECEIVE Receive;
PING_IPX_CANCEL Cancel;
PING_IPX_POLL Poll;
} PING_IPX_PROTOCOL;
typedef union {
VOID *RxData;
VOID *TxData;
} PING_PACKET;
//
// PING_IPX_COMPLETION_TOKEN
// structures are used for both transmit and receive operations.
// This version is IP-unaware.
//
typedef struct {
EFI_EVENT Event;
EFI_STATUS Status;
PING_PACKET Packet;
} PING_IPX_COMPLETION_TOKEN;
#pragma pack(1)
typedef struct _ICMPX_ECHO_REQUEST_REPLY {
UINT8 Type;
UINT8 Code;
UINT16 Checksum;
UINT16 Identifier;
UINT16 SequenceNum;
UINT32 TimeStamp;
UINT8 Data[1];
} ICMPX_ECHO_REQUEST_REPLY;
#pragma pack()
typedef struct _PING_ICMP_TX_INFO {
LIST_ENTRY Link;
UINT16 SequenceNum;
UINT32 TimeStamp;
PING_IPX_COMPLETION_TOKEN *Token;
} PING_ICMPX_TX_INFO;
#define DEFAULT_TIMEOUT 5000
#define MAX_SEND_NUMBER 10000
#define MAX_BUFFER_SIZE 32768
#define DEFAULT_TIMER_PERIOD 358049
#define ONE_SECOND 10000000
#define PING_IP_CHOICE_IP4 1
#define PING_IP_CHOICE_IP6 2
#define DEFAULT_SEND_COUNT 10
#define DEFAULT_BUFFER_SIZE 16
#define ICMP_V4_ECHO_REQUEST 0x8
#define ICMP_V4_ECHO_REPLY 0x0
#define STALL_1_MILLI_SECOND 1000
#define PING_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('P', 'i', 'n', 'g')
typedef struct _PING_PRIVATE_DATA {
UINT32 Signature;
EFI_HANDLE NicHandle;
EFI_HANDLE IpChildHandle;
EFI_EVENT Timer;
UINT32 TimerPeriod;
UINT32 RttTimerTick;
EFI_EVENT RttTimer;
EFI_STATUS Status;
LIST_ENTRY TxList;
UINT16 RxCount;
UINT16 TxCount;
UINT64 RttSum;
UINT64 RttMin;
UINT64 RttMax;
UINT32 SequenceNum;
UINT32 SendNum;
UINT32 BufferSize;
UINT32 IpChoice;
PING_IPX_PROTOCOL ProtocolPointers;
VOID *IpProtocol;
UINT8 SrcAddress[MAX (sizeof (EFI_IPv6_ADDRESS), sizeof (EFI_IPv4_ADDRESS))];
UINT8 DstAddress[MAX (sizeof (EFI_IPv6_ADDRESS), sizeof (EFI_IPv4_ADDRESS))];
PING_IPX_COMPLETION_TOKEN RxToken;
UINT16 FailedCount;
} PING_PRIVATE_DATA;
/**
Calculate the internet checksum (see RFC 1071).
@param[in] Packet Buffer which contains the data to be checksummed.
@param[in] Length Length to be checksummed.
@retval Checksum Returns the 16 bit ones complement of
ones complement sum of 16 bit words
**/
UINT16
NetChecksum (
IN UINT8 *Buffer,
IN UINT32 Length
)
{
UINT32 Sum;
UINT8 Odd;
UINT16 *Packet;
Packet = (UINT16 *)Buffer;
Sum = 0;
Odd = (UINT8)(Length & 1);
Length >>= 1;
while ((Length--) != 0) {
Sum += *Packet++;
}
if (Odd != 0) {
Sum += *(UINT8 *)Packet;
}
Sum = (Sum & 0xffff) + (Sum >> 16);
//
// in case above carried
//
Sum += Sum >> 16;
return (UINT16)Sum;
}
/**
Reads and returns the current value of register.
In IA64, the register is the Interval Timer Vector (ITV).
In X86(IA32/X64), the register is the Time Stamp Counter (TSC)
@return The current value of the register.
**/
STATIC CONST SHELL_PARAM_ITEM PingParamList[] = {
{
L"-l",
TypeValue
},
{
L"-n",
TypeValue
},
{
L"-s",
TypeValue
},
{
L"-_s",
TypeValue
},
{
L"-_ip6",
TypeFlag
},
{
NULL,
TypeMax
},
};
//
// Global Variables in Ping command.
//
STATIC CONST CHAR16 *mDstString;
STATIC CONST CHAR16 *mSrcString;
/**
RTT timer tick routine.
@param[in] Event A EFI_EVENT type event.
@param[in] Context The pointer to Context.
**/
VOID
EFIAPI
RttTimerTickRoutine (
IN EFI_EVENT Event,
IN VOID *Context
)
{
UINT32 *RttTimerTick;
RttTimerTick = (UINT32 *)Context;
(*RttTimerTick)++;
}
/**
Get the timer period of the system.
This function tries to get the system timer period by creating
an 1ms period timer.
@return System timer period in MS, or 0 if operation failed.
**/
UINT32
GetTimerPeriod (
VOID
)
{
EFI_STATUS Status;
UINT32 RttTimerTick;
EFI_EVENT TimerEvent;
UINT32 StallCounter;
EFI_TPL OldTpl;
UINT32 TimerPeriod;
RttTimerTick = 0;
StallCounter = 0;
TimerPeriod = 0;
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
RttTimerTickRoutine,
&RttTimerTick,
&TimerEvent
);
if (EFI_ERROR (Status)) {
return 0;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Status = gBS->SetTimer (
TimerEvent,
TimerPeriodic,
TICKS_PER_MS
);
if (EFI_ERROR (Status)) {
gBS->CloseEvent (TimerEvent);
return 0;
}
while (RttTimerTick < 10) {
gBS->Stall (STALL_1_MILLI_SECOND);
++StallCounter;
}
gBS->RestoreTPL (OldTpl);
gBS->SetTimer (TimerEvent, TimerCancel, 0);
gBS->CloseEvent (TimerEvent);
TimerPeriod = StallCounter / RttTimerTick;
if (TimerPeriod != 0) {
return TimerPeriod;
} else {
return 1;
}
}
/**
Initialize the timer event for RTT (round trip time).
@param[in] Private The pointer to PING_PRIVATE_DATA.
@retval EFI_SUCCESS RTT timer is started.
@retval Others Failed to start the RTT timer.
**/
EFI_STATUS
PingInitRttTimer (
PING_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
Private->TimerPeriod = GetTimerPeriod ();
if (Private->TimerPeriod == 0) {
return EFI_ABORTED;
}
Private->RttTimerTick = 0;
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
RttTimerTickRoutine,
&Private->RttTimerTick,
&Private->RttTimer
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->SetTimer (
Private->RttTimer,
TimerPeriodic,
TICKS_PER_MS
);
if (EFI_ERROR (Status)) {
gBS->CloseEvent (Private->RttTimer);
return Status;
}
return EFI_SUCCESS;
}
/**
Free RTT timer event resource.
@param[in] Private The pointer to PING_PRIVATE_DATA.
**/
VOID
PingFreeRttTimer (
PING_PRIVATE_DATA *Private
)
{
if (Private->RttTimer != NULL) {
gBS->SetTimer (Private->RttTimer, TimerCancel, 0);
gBS->CloseEvent (Private->RttTimer);
}
}
/**
Read the current time.
@param[in] Private The pointer to PING_PRIVATE_DATA.
@retval the current tick value.
**/
UINT32
ReadTime (
PING_PRIVATE_DATA *Private
)
{
return Private->RttTimerTick;
}
/**
Calculate a duration in ms.
@param[in] Private The pointer to PING_PRIVATE_DATA.
@param[in] Begin The start point of time.
@param[in] End The end point of time.
@return The duration in ms.
@retval 0 The parameters were not valid.
**/
UINT32
CalculateTick (
PING_PRIVATE_DATA *Private,
IN UINT32 Begin,
IN UINT32 End
)
{
if (End < Begin) {
return (0);
}
return (End - Begin) * Private->TimerPeriod;
}
/**
Destroy PING_ICMPX_TX_INFO, and recollect the memory.
@param[in] TxInfo The pointer to PING_ICMPX_TX_INFO.
@param[in] IpChoice Whether the token is IPv4 or IPv6
**/
VOID
PingDestroyTxInfo (
IN PING_ICMPX_TX_INFO *TxInfo,
IN UINT32 IpChoice
)
{
EFI_IP6_TRANSMIT_DATA *Ip6TxData;
EFI_IP4_TRANSMIT_DATA *Ip4TxData;
EFI_IP6_FRAGMENT_DATA *FragData;
UINTN Index;
if (TxInfo == NULL) {
return;
}
if (TxInfo->Token != NULL) {
if (TxInfo->Token->Event != NULL) {
gBS->CloseEvent (TxInfo->Token->Event);
}
if (TxInfo->Token->Packet.TxData != NULL) {
if (IpChoice == PING_IP_CHOICE_IP6) {
Ip6TxData = TxInfo->Token->Packet.TxData;
if (Ip6TxData->OverrideData != NULL) {
FreePool (Ip6TxData->OverrideData);
}
if (Ip6TxData->ExtHdrs != NULL) {
FreePool (Ip6TxData->ExtHdrs);
}
for (Index = 0; Index < Ip6TxData->FragmentCount; Index++) {
FragData = Ip6TxData->FragmentTable[Index].FragmentBuffer;
if (FragData != NULL) {
FreePool (FragData);
}
}
} else {
Ip4TxData = TxInfo->Token->Packet.TxData;
if (Ip4TxData->OverrideData != NULL) {
FreePool (Ip4TxData->OverrideData);
}
for (Index = 0; Index < Ip4TxData->FragmentCount; Index++) {
FragData = Ip4TxData->FragmentTable[Index].FragmentBuffer;
if (FragData != NULL) {
FreePool (FragData);
}
}
}
}
FreePool (TxInfo->Token);
}
FreePool (TxInfo);
}
/**
Match the request, and reply with SequenceNum/TimeStamp.
@param[in] Private The pointer to PING_PRIVATE_DATA.
@param[in] Packet The pointer to ICMPX_ECHO_REQUEST_REPLY.
@retval EFI_SUCCESS The match is successful.
@retval EFI_NOT_FOUND The reply can't be matched with any request.
**/
EFI_STATUS
Ping6MatchEchoReply (
IN PING_PRIVATE_DATA *Private,
IN ICMPX_ECHO_REQUEST_REPLY *Packet
)
{
PING_ICMPX_TX_INFO *TxInfo;
LIST_ENTRY *Entry;
LIST_ENTRY *NextEntry;
NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
TxInfo = BASE_CR (Entry, PING_ICMPX_TX_INFO, Link);
if ((TxInfo->SequenceNum == Packet->SequenceNum) && (TxInfo->TimeStamp == Packet->TimeStamp)) {
Private->RxCount++;
RemoveEntryList (&TxInfo->Link);
PingDestroyTxInfo (TxInfo, Private->IpChoice);
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
The original intention is to send a request.
Currently, the application retransmits an icmp6 echo request packet
per second in sendnumber times that is specified by the user.
Because nothing can be done here, all things move to the timer rountine.
@param[in] Event A EFI_EVENT type event.
@param[in] Context The pointer to Context.
**/
VOID
EFIAPI
Ping6OnEchoRequestSent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
}
/**
receive reply, match and print reply infomation.
@param[in] Event A EFI_EVENT type event.
@param[in] Context The pointer to context.
**/
VOID
EFIAPI
Ping6OnEchoReplyReceived (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
PING_PRIVATE_DATA *Private;
ICMPX_ECHO_REQUEST_REPLY *Reply;
UINT32 PayLoad;
UINT32 Rtt;
Private = (PING_PRIVATE_DATA *)Context;
if ((Private == NULL) || (Private->Status == EFI_ABORTED) || (Private->Signature != PING_PRIVATE_DATA_SIGNATURE)) {
return;
}
if (Private->RxToken.Packet.RxData == NULL) {
return;
}
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
Reply = ((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->FragmentTable[0].FragmentBuffer;
PayLoad = ((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->DataLength;
if (((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->Header->NextHeader != IP6_ICMP) {
goto ON_EXIT;
}
if (!IP6_IS_MULTICAST ((EFI_IPv6_ADDRESS *)&Private->DstAddress) &&
!EFI_IP6_EQUAL (&((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->Header->SourceAddress, (EFI_IPv6_ADDRESS *)&Private->DstAddress))
{
goto ON_EXIT;
}
if ((Reply->Type != ICMP_V6_ECHO_REPLY) || (Reply->Code != 0)) {
goto ON_EXIT;
}
} else {
Reply = ((EFI_IP4_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->FragmentTable[0].FragmentBuffer;
PayLoad = ((EFI_IP4_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->DataLength;
if (!IP4_IS_MULTICAST (EFI_IP4 (*(EFI_IPv4_ADDRESS *)Private->DstAddress)) &&
!EFI_IP4_EQUAL (&((EFI_IP4_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->Header->SourceAddress, (EFI_IPv4_ADDRESS *)&Private->DstAddress))
{
goto ON_EXIT;
}
if ((Reply->Type != ICMP_V4_ECHO_REPLY) || (Reply->Code != 0)) {
goto ON_EXIT;
}
}
if (PayLoad != Private->BufferSize) {
goto ON_EXIT;
}
//
// Check whether the reply matches the sent request before.
//
Status = Ping6MatchEchoReply (Private, Reply);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Display statistics on this icmp6 echo reply packet.
//
Rtt = CalculateTick (Private, Reply->TimeStamp, ReadTime (Private));
Private->RttSum += Rtt;
Private->RttMin = Private->RttMin > Rtt ? Rtt : Private->RttMin;
Private->RttMax = Private->RttMax < Rtt ? Rtt : Private->RttMax;
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_PING_REPLY_INFO),
gShellNetwork1HiiHandle,
PayLoad,
mDstString,
Reply->SequenceNum,
Private->IpChoice == PING_IP_CHOICE_IP6 ? ((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->Header->HopLimit : 0,
Rtt,
Rtt + Private->TimerPeriod
);
ON_EXIT:
//
// Recycle the packet before reusing RxToken
//
gBS->SignalEvent (Private->IpChoice == PING_IP_CHOICE_IP6 ? ((EFI_IP6_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->RecycleSignal : ((EFI_IP4_RECEIVE_DATA *)Private->RxToken.Packet.RxData)->RecycleSignal);
if (Private->RxCount < Private->SendNum) {
//
// Continue to receive icmp echo reply packets.
//
Private->RxToken.Status = EFI_ABORTED;
Status = Private->ProtocolPointers.Receive (Private->IpProtocol, &Private->RxToken);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_RECEIVE), gShellNetwork1HiiHandle, Status);
Private->Status = EFI_ABORTED;
}
} else {
//
// All reply have already been received from the dest host.
//
Private->Status = EFI_SUCCESS;
}
}
/**
Create a PING_IPX_COMPLETION_TOKEN.
@param[in] Private The pointer of PING_PRIVATE_DATA.
@param[in] TimeStamp The TimeStamp of request.
@param[in] SequenceNum The SequenceNum of request.
@return The pointer of PING_IPX_COMPLETION_TOKEN.
**/
PING_IPX_COMPLETION_TOKEN *
PingGenerateToken (
IN PING_PRIVATE_DATA *Private,
IN UINT32 TimeStamp,
IN UINT16 SequenceNum
)
{
EFI_STATUS Status;
PING_IPX_COMPLETION_TOKEN *Token;
VOID *TxData;
ICMPX_ECHO_REQUEST_REPLY *Request;
UINT16 HeadSum;
UINT16 TempChecksum;
Request = AllocateZeroPool (Private->BufferSize);
if (Request == NULL) {
return NULL;
}
TxData = AllocateZeroPool (Private->IpChoice == PING_IP_CHOICE_IP6 ? sizeof (EFI_IP6_TRANSMIT_DATA) : sizeof (EFI_IP4_TRANSMIT_DATA));
if (TxData == NULL) {
FreePool (Request);
return NULL;
}
Token = AllocateZeroPool (sizeof (PING_IPX_COMPLETION_TOKEN));
if (Token == NULL) {
FreePool (Request);
FreePool (TxData);
return NULL;
}
//
// Assembly echo request packet.
//
Request->Type = (UINT8)(Private->IpChoice == PING_IP_CHOICE_IP6 ? ICMP_V6_ECHO_REQUEST : ICMP_V4_ECHO_REQUEST);
Request->Code = 0;
Request->SequenceNum = SequenceNum;
Request->Identifier = 0;
Request->Checksum = 0;
//
// Assembly token for transmit.
//
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
Request->TimeStamp = TimeStamp;
((EFI_IP6_TRANSMIT_DATA *)TxData)->ExtHdrsLength = 0;
((EFI_IP6_TRANSMIT_DATA *)TxData)->ExtHdrs = NULL;
((EFI_IP6_TRANSMIT_DATA *)TxData)->OverrideData = 0;
((EFI_IP6_TRANSMIT_DATA *)TxData)->DataLength = Private->BufferSize;
((EFI_IP6_TRANSMIT_DATA *)TxData)->FragmentCount = 1;
((EFI_IP6_TRANSMIT_DATA *)TxData)->FragmentTable[0].FragmentBuffer = (VOID *)Request;
((EFI_IP6_TRANSMIT_DATA *)TxData)->FragmentTable[0].FragmentLength = Private->BufferSize;
} else {
((EFI_IP4_TRANSMIT_DATA *)TxData)->OptionsLength = 0;
((EFI_IP4_TRANSMIT_DATA *)TxData)->OptionsBuffer = NULL;
((EFI_IP4_TRANSMIT_DATA *)TxData)->OverrideData = 0;
((EFI_IP4_TRANSMIT_DATA *)TxData)->TotalDataLength = Private->BufferSize;
((EFI_IP4_TRANSMIT_DATA *)TxData)->FragmentCount = 1;
((EFI_IP4_TRANSMIT_DATA *)TxData)->FragmentTable[0].FragmentBuffer = (VOID *)Request;
((EFI_IP4_TRANSMIT_DATA *)TxData)->FragmentTable[0].FragmentLength = Private->BufferSize;
((EFI_IP4_TRANSMIT_DATA *)TxData)->DestinationAddress.Addr[0] = Private->DstAddress[0];
((EFI_IP4_TRANSMIT_DATA *)TxData)->DestinationAddress.Addr[1] = Private->DstAddress[1];
((EFI_IP4_TRANSMIT_DATA *)TxData)->DestinationAddress.Addr[2] = Private->DstAddress[2];
((EFI_IP4_TRANSMIT_DATA *)TxData)->DestinationAddress.Addr[3] = Private->DstAddress[3];
HeadSum = NetChecksum ((UINT8 *)Request, Private->BufferSize);
Request->TimeStamp = TimeStamp;
TempChecksum = NetChecksum ((UINT8 *)&Request->TimeStamp, sizeof (UINT64));
Request->Checksum = (UINT16)(~NetAddChecksum (HeadSum, TempChecksum));
}
Token->Status = EFI_ABORTED;
Token->Packet.TxData = TxData;
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
Ping6OnEchoRequestSent,
Private,
&Token->Event
);
if (EFI_ERROR (Status)) {
FreePool (Request);
FreePool (TxData);
FreePool (Token);
return NULL;
}
return Token;
}
/**
Transmit the PING_IPX_COMPLETION_TOKEN.
@param[in] Private The pointer of PING_PRIVATE_DATA.
@retval EFI_SUCCESS Transmitted successfully.
@retval EFI_OUT_OF_RESOURCES No memory is available on the platform.
@retval others Transmitted unsuccessfully.
**/
EFI_STATUS
PingSendEchoRequest (
IN PING_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
PING_ICMPX_TX_INFO *TxInfo;
TxInfo = AllocateZeroPool (sizeof (PING_ICMPX_TX_INFO));
if (TxInfo == NULL) {
return EFI_OUT_OF_RESOURCES;
}
TxInfo->TimeStamp = ReadTime (Private);
TxInfo->SequenceNum = (UINT16)(Private->TxCount + 1);
TxInfo->Token = PingGenerateToken (
Private,
TxInfo->TimeStamp,
TxInfo->SequenceNum
);
if (TxInfo->Token == NULL) {
PingDestroyTxInfo (TxInfo, Private->IpChoice);
return EFI_OUT_OF_RESOURCES;
}
ASSERT (Private->ProtocolPointers.Transmit != NULL);
InsertTailList (&Private->TxList, &TxInfo->Link);
Status = Private->ProtocolPointers.Transmit (Private->IpProtocol, TxInfo->Token);
if (EFI_ERROR (Status)) {
RemoveEntryList (&TxInfo->Link);
PingDestroyTxInfo (TxInfo, Private->IpChoice);
return Status;
}
Private->TxCount++;
return EFI_SUCCESS;
}
/**
Place a completion token into the receive packet queue to receive the echo reply.
@param[in] Private The pointer of PING_PRIVATE_DATA.
@retval EFI_SUCCESS Put the token into the receive packet queue successfully.
@retval others Put the token into the receive packet queue unsuccessfully.
**/
EFI_STATUS
Ping6ReceiveEchoReply (
IN PING_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
ZeroMem (&Private->RxToken, sizeof (PING_IPX_COMPLETION_TOKEN));
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
Ping6OnEchoReplyReceived,
Private,
&Private->RxToken.Event
);
if (EFI_ERROR (Status)) {
return Status;
}
Private->RxToken.Status = EFI_NOT_READY;
Status = Private->ProtocolPointers.Receive (Private->IpProtocol, &Private->RxToken);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_RECEIVE), gShellNetwork1HiiHandle, Status);
}
return Status;
}
/**
Remove the timeout request from the list.
@param[in] Event A EFI_EVENT type event.
@param[in] Context The pointer to Context.
**/
VOID
EFIAPI
Ping6OnTimerRoutine (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
PING_PRIVATE_DATA *Private;
PING_ICMPX_TX_INFO *TxInfo;
LIST_ENTRY *Entry;
LIST_ENTRY *NextEntry;
UINT64 Time;
Private = (PING_PRIVATE_DATA *)Context;
if (Private->Signature != PING_PRIVATE_DATA_SIGNATURE) {
Private->Status = EFI_NOT_FOUND;
return;
}
//
// Retransmit icmp6 echo request packets per second in sendnumber times.
//
if (Private->TxCount < Private->SendNum) {
Status = PingSendEchoRequest (Private);
if (Private->TxCount != 0) {
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_SEND_REQUEST), gShellNetwork1HiiHandle, Private->TxCount + 1);
}
}
}
//
// Check whether any icmp6 echo request in the list timeout.
//
NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
TxInfo = BASE_CR (Entry, PING_ICMPX_TX_INFO, Link);
Time = CalculateTick (Private, TxInfo->TimeStamp, ReadTime (Private));
//
// Remove the timeout echo request from txlist.
//
if (Time > DEFAULT_TIMEOUT) {
if (EFI_ERROR (TxInfo->Token->Status)) {
Private->ProtocolPointers.Cancel (Private->IpProtocol, TxInfo->Token);
}
//
// Remove the timeout icmp6 echo request from list.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_TIMEOUT), gShellNetwork1HiiHandle, TxInfo->SequenceNum);
RemoveEntryList (&TxInfo->Link);
PingDestroyTxInfo (TxInfo, Private->IpChoice);
Private->RxCount++;
Private->FailedCount++;
if (IsListEmpty (&Private->TxList) && (Private->TxCount == Private->SendNum)) {
//
// All the left icmp6 echo request in the list timeout.
//
Private->Status = EFI_TIMEOUT;
}
}
}
}
/**
Determine if a IP4 address is Link Local.
169.254.1.0 through 169.254.254.255 is link local.
@param[in] Address The address to test.
@retval TRUE It is.
@retval FALSE It is not.
**/
BOOLEAN
PingNetIp4IsLinkLocalAddr (
IN CONST EFI_IPv4_ADDRESS *Address
)
{
return ((BOOLEAN)(Address->Addr[0] == 169 && Address->Addr[1] == 254 && Address->Addr[2] >= 1 && Address->Addr[2] <= 254));
}
/**
Determine if a IP4 address is unspecified.
@param[in] Address The address to test.
@retval TRUE It is.
@retval FALSE It is not.
**/
BOOLEAN
PingNetIp4IsUnspecifiedAddr (
IN CONST EFI_IPv4_ADDRESS *Address
)
{
return ((BOOLEAN)((ReadUnaligned32 ((UINT32 *)&Address->Addr[0])) == 0x00000000));
}
/**
Create a valid IP instance.
@param[in] Private The pointer of PING_PRIVATE_DATA.
@retval EFI_SUCCESS Create a valid IPx instance successfully.
@retval EFI_ABORTED Locate handle with ipx service binding protocol unsuccessfully.
@retval EFI_INVALID_PARAMETER The source address is unspecified when the destination address is a link-local address.
@retval EFI_OUT_OF_RESOURCES No memory is available on the platform.
@retval EFI_NOT_FOUND The source address is not found.
**/
EFI_STATUS
PingCreateIpInstance (
IN PING_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
UINTN HandleIndex;
UINTN HandleNum;
EFI_HANDLE *HandleBuffer;
BOOLEAN UnspecifiedSrc;
EFI_STATUS MediaStatus;
EFI_SERVICE_BINDING_PROTOCOL *EfiSb;
VOID *IpXCfg;
EFI_IP6_CONFIG_DATA Ip6Config;
EFI_IP4_CONFIG_DATA Ip4Config;
VOID *IpXInterfaceInfo;
UINTN IfInfoSize;
EFI_IPv6_ADDRESS *Addr;
UINTN AddrIndex;
HandleBuffer = NULL;
UnspecifiedSrc = FALSE;
MediaStatus = EFI_SUCCESS;
EfiSb = NULL;
IpXInterfaceInfo = NULL;
IfInfoSize = 0;
//
// Locate all the handles with ip6 service binding protocol.
//
Status = gBS->LocateHandleBuffer (
ByProtocol,
Private->IpChoice == PING_IP_CHOICE_IP6 ? &gEfiIp6ServiceBindingProtocolGuid : &gEfiIp4ServiceBindingProtocolGuid,
NULL,
&HandleNum,
&HandleBuffer
);
if (EFI_ERROR (Status) || (HandleNum == 0) || (HandleBuffer == NULL)) {
return EFI_ABORTED;
}
if ((Private->IpChoice == PING_IP_CHOICE_IP6) ? NetIp6IsUnspecifiedAddr ((EFI_IPv6_ADDRESS *)&Private->SrcAddress) : \
PingNetIp4IsUnspecifiedAddr ((EFI_IPv4_ADDRESS *)&Private->SrcAddress))
{
//
// SrcAddress is unspecified. So, both connected and configured interface will be automatic selected.
//
UnspecifiedSrc = TRUE;
}
//
// Source address is required when pinging a link-local address.
//
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
if (NetIp6IsLinkLocalAddr ((EFI_IPv6_ADDRESS *)&Private->DstAddress) && UnspecifiedSrc) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_INVALID_SOURCE), gShellNetwork1HiiHandle);
Status = EFI_INVALID_PARAMETER;
goto ON_ERROR;
}
} else {
ASSERT (Private->IpChoice == PING_IP_CHOICE_IP4);
if (PingNetIp4IsLinkLocalAddr ((EFI_IPv4_ADDRESS *)&Private->DstAddress) && UnspecifiedSrc) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_INVALID_SOURCE), gShellNetwork1HiiHandle);
Status = EFI_INVALID_PARAMETER;
goto ON_ERROR;
}
}
//
// For each ip6 protocol, check interface addresses list.
//
for (HandleIndex = 0; HandleIndex < HandleNum; HandleIndex++) {
EfiSb = NULL;
IpXInterfaceInfo = NULL;
IfInfoSize = 0;
if (UnspecifiedSrc) {
//
// Check media.
//
NetLibDetectMediaWaitTimeout (HandleBuffer[HandleIndex], 0, &MediaStatus);
if (MediaStatus != EFI_SUCCESS) {
//
// Skip this one.
//
continue;
}
}
Status = gBS->HandleProtocol (
HandleBuffer[HandleIndex],
Private->IpChoice == PING_IP_CHOICE_IP6 ? &gEfiIp6ServiceBindingProtocolGuid : &gEfiIp4ServiceBindingProtocolGuid,
(VOID **)&EfiSb
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Ip6config protocol and ip6 service binding protocol are installed
// on the same handle.
//
Status = gBS->HandleProtocol (
HandleBuffer[HandleIndex],
Private->IpChoice == PING_IP_CHOICE_IP6 ? &gEfiIp6ConfigProtocolGuid : &gEfiIp4Config2ProtocolGuid,
(VOID **)&IpXCfg
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Get the interface information size.
//
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
Status = ((EFI_IP6_CONFIG_PROTOCOL *)IpXCfg)->GetData (
IpXCfg,
Ip6ConfigDataTypeInterfaceInfo,
&IfInfoSize,
NULL
);
} else {
Status = ((EFI_IP4_CONFIG2_PROTOCOL *)IpXCfg)->GetData (
IpXCfg,
Ip4Config2DataTypeInterfaceInfo,
&IfInfoSize,
NULL
);
}
//
// Skip the ones not in current use.
//
if (Status == EFI_NOT_STARTED) {
continue;
}
if (Status != EFI_BUFFER_TOO_SMALL) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_GETDATA), gShellNetwork1HiiHandle, Status);
goto ON_ERROR;
}
IpXInterfaceInfo = AllocateZeroPool (IfInfoSize);
if (IpXInterfaceInfo == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_ERROR;
}
//
// Get the interface info.
//
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
Status = ((EFI_IP6_CONFIG_PROTOCOL *)IpXCfg)->GetData (
IpXCfg,
Ip6ConfigDataTypeInterfaceInfo,
&IfInfoSize,
IpXInterfaceInfo
);
} else {
Status = ((EFI_IP4_CONFIG2_PROTOCOL *)IpXCfg)->GetData (
IpXCfg,
Ip4Config2DataTypeInterfaceInfo,
&IfInfoSize,
IpXInterfaceInfo
);
}
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_GETDATA), gShellNetwork1HiiHandle, Status);
goto ON_ERROR;
}
//
// Check whether the source address is one of the interface addresses.
//
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
for (AddrIndex = 0; AddrIndex < ((EFI_IP6_CONFIG_INTERFACE_INFO *)IpXInterfaceInfo)->AddressInfoCount; AddrIndex++) {
Addr = &(((EFI_IP6_CONFIG_INTERFACE_INFO *)IpXInterfaceInfo)->AddressInfo[AddrIndex].Address);
if (UnspecifiedSrc) {
if (!NetIp6IsUnspecifiedAddr (Addr) && !NetIp6IsLinkLocalAddr (Addr)) {
//
// Select the interface automatically.
//
CopyMem (&Private->SrcAddress, Addr, sizeof (Private->SrcAddress));
break;
}
} else if (EFI_IP6_EQUAL (&Private->SrcAddress, Addr)) {
//
// Match a certain interface address.
//
break;
}
}
if (AddrIndex < ((EFI_IP6_CONFIG_INTERFACE_INFO *)IpXInterfaceInfo)->AddressInfoCount) {
//
// Found a nic handle with right interface address.
//
break;
}
} else {
if (UnspecifiedSrc) {
if (!PingNetIp4IsUnspecifiedAddr (&((EFI_IP4_CONFIG2_INTERFACE_INFO *)IpXInterfaceInfo)->StationAddress) &&
!PingNetIp4IsLinkLocalAddr (&((EFI_IP4_CONFIG2_INTERFACE_INFO *)IpXInterfaceInfo)->StationAddress))
{
//
// Select the interface automatically.
//
break;
}
} else if (EFI_IP4_EQUAL (&Private->SrcAddress, &((EFI_IP4_CONFIG2_INTERFACE_INFO *)IpXInterfaceInfo)->StationAddress)) {
//
// Match a certain interface address.
//
break;
}
}
FreePool (IpXInterfaceInfo);
IpXInterfaceInfo = NULL;
}
//
// No exact interface address matched.
//
if (HandleIndex == HandleNum) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_CONFIGD_NIC_NF), gShellNetwork1HiiHandle, L"ping");
Status = EFI_NOT_FOUND;
goto ON_ERROR;
}
Private->NicHandle = HandleBuffer[HandleIndex];
ASSERT (EfiSb != NULL);
Status = EfiSb->CreateChild (EfiSb, &Private->IpChildHandle);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
if (Private->IpChoice == PING_IP_CHOICE_IP6) {
Status = gBS->OpenProtocol (
Private->IpChildHandle,
&gEfiIp6ProtocolGuid,
&Private->IpProtocol,
gImageHandle,
Private->IpChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
ZeroMem (&Ip6Config, sizeof (EFI_IP6_CONFIG_DATA));
//
// Configure the ip6 instance for icmp6 packet exchange.
//
Ip6Config.DefaultProtocol = 58;
Ip6Config.AcceptAnyProtocol = FALSE;
Ip6Config.AcceptIcmpErrors = TRUE;
Ip6Config.AcceptPromiscuous = FALSE;
Ip6Config.TrafficClass = 0;
Ip6Config.HopLimit = 128;
Ip6Config.FlowLabel = 0;
Ip6Config.ReceiveTimeout = 0;
Ip6Config.TransmitTimeout = 0;
IP6_COPY_ADDRESS (&Ip6Config.StationAddress, &Private->SrcAddress);
IP6_COPY_ADDRESS (&Ip6Config.DestinationAddress, &Private->DstAddress);
Status = ((EFI_IP6_PROTOCOL *)(Private->IpProtocol))->Configure (Private->IpProtocol, &Ip6Config);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_CONFIG), gShellNetwork1HiiHandle, Status);
goto ON_ERROR;
}
Private->ProtocolPointers.Transmit = (PING_IPX_TRANSMIT)((EFI_IP6_PROTOCOL *)Private->IpProtocol)->Transmit;
Private->ProtocolPointers.Receive = (PING_IPX_RECEIVE)((EFI_IP6_PROTOCOL *)Private->IpProtocol)->Receive;
Private->ProtocolPointers.Cancel = (PING_IPX_CANCEL)((EFI_IP6_PROTOCOL *)Private->IpProtocol)->Cancel;
Private->ProtocolPointers.Poll = (PING_IPX_POLL)((EFI_IP6_PROTOCOL *)Private->IpProtocol)->Poll;
} else {
Status = gBS->OpenProtocol (
Private->IpChildHandle,
&gEfiIp4ProtocolGuid,
&Private->IpProtocol,
gImageHandle,
Private->IpChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
ZeroMem (&Ip4Config, sizeof (EFI_IP4_CONFIG_DATA));
//
// Configure the ip4 instance for icmp4 packet exchange.
//
Ip4Config.DefaultProtocol = 1;
Ip4Config.AcceptAnyProtocol = FALSE;
Ip4Config.AcceptBroadcast = FALSE;
Ip4Config.AcceptIcmpErrors = TRUE;
Ip4Config.AcceptPromiscuous = FALSE;
Ip4Config.DoNotFragment = FALSE;
Ip4Config.RawData = FALSE;
Ip4Config.ReceiveTimeout = 0;
Ip4Config.TransmitTimeout = 0;
Ip4Config.UseDefaultAddress = TRUE;
Ip4Config.TimeToLive = 128;
Ip4Config.TypeOfService = 0;
Status = ((EFI_IP4_PROTOCOL *)(Private->IpProtocol))->Configure (Private->IpProtocol, &Ip4Config);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_CONFIG), gShellNetwork1HiiHandle, Status);
goto ON_ERROR;
}
Private->ProtocolPointers.Transmit = (PING_IPX_TRANSMIT)((EFI_IP4_PROTOCOL *)Private->IpProtocol)->Transmit;
Private->ProtocolPointers.Receive = (PING_IPX_RECEIVE)((EFI_IP4_PROTOCOL *)Private->IpProtocol)->Receive;
Private->ProtocolPointers.Cancel = (PING_IPX_CANCEL)((EFI_IP4_PROTOCOL *)Private->IpProtocol)->Cancel;
Private->ProtocolPointers.Poll = (PING_IPX_POLL)((EFI_IP4_PROTOCOL *)Private->IpProtocol)->Poll;
}
if (HandleBuffer != NULL) {
FreePool (HandleBuffer);
}
return EFI_SUCCESS;
ON_ERROR:
if (HandleBuffer != NULL) {
FreePool (HandleBuffer);
}
if (IpXInterfaceInfo != NULL) {
FreePool (IpXInterfaceInfo);
}
if ((EfiSb != NULL) && (Private->IpChildHandle != NULL)) {
EfiSb->DestroyChild (EfiSb, Private->IpChildHandle);
}
return Status;
}
/**
Destroy the IP instance.
@param[in] Private The pointer of PING_PRIVATE_DATA.
**/
VOID
Ping6DestroyIp6Instance (
IN PING_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
EFI_SERVICE_BINDING_PROTOCOL *IpSb;
gBS->CloseProtocol (
Private->IpChildHandle,
Private->IpChoice == PING_IP_CHOICE_IP6 ? &gEfiIp6ProtocolGuid : &gEfiIp4ProtocolGuid,
gImageHandle,
Private->IpChildHandle
);
Status = gBS->HandleProtocol (
Private->NicHandle,
Private->IpChoice == PING_IP_CHOICE_IP6 ? &gEfiIp6ServiceBindingProtocolGuid : &gEfiIp4ServiceBindingProtocolGuid,
(VOID **)&IpSb
);
if (!EFI_ERROR (Status)) {
IpSb->DestroyChild (IpSb, Private->IpChildHandle);
}
}
/**
The Ping Process.
@param[in] SendNumber The send request count.
@param[in] BufferSize The send buffer size.
@param[in] SrcAddress The source address.
@param[in] DstAddress The destination address.
@param[in] IpChoice The choice between IPv4 and IPv6.
@retval SHELL_SUCCESS The ping processed successfullly.
@retval others The ping processed unsuccessfully.
**/
SHELL_STATUS
ShellPing (
IN UINT32 SendNumber,
IN UINT32 BufferSize,
IN EFI_IPv6_ADDRESS *SrcAddress,
IN EFI_IPv6_ADDRESS *DstAddress,
IN UINT32 IpChoice
)
{
EFI_STATUS Status;
PING_PRIVATE_DATA *Private;
PING_ICMPX_TX_INFO *TxInfo;
LIST_ENTRY *Entry;
LIST_ENTRY *NextEntry;
SHELL_STATUS ShellStatus;
ShellStatus = SHELL_SUCCESS;
Private = AllocateZeroPool (sizeof (PING_PRIVATE_DATA));
if (Private == NULL) {
return (SHELL_OUT_OF_RESOURCES);
}
Private->IpChoice = IpChoice;
Private->Signature = PING_PRIVATE_DATA_SIGNATURE;
Private->SendNum = SendNumber;
Private->BufferSize = BufferSize;
Private->RttMin = ~((UINT64)(0x0));
Private->Status = EFI_NOT_READY;
CopyMem (&Private->SrcAddress, SrcAddress, sizeof (Private->SrcAddress));
CopyMem (&Private->DstAddress, DstAddress, sizeof (Private->DstAddress));
InitializeListHead (&Private->TxList);
//
// Open and configure a ip instance for us.
//
Status = PingCreateIpInstance (Private);
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Print the command line itself.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_START), gShellNetwork1HiiHandle, mDstString, Private->BufferSize);
//
// Create a ipv6 token to receive the first icmp6 echo reply packet.
//
Status = Ping6ReceiveEchoReply (Private);
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Create and start timer to send icmp6 echo request packet per second.
//
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
Ping6OnTimerRoutine,
Private,
&Private->Timer
);
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Start a timer to calculate the RTT.
//
Status = PingInitRttTimer (Private);
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Create a ipv6 token to send the first icmp6 echo request packet.
//
Status = PingSendEchoRequest (Private);
//
// EFI_NOT_READY for IPsec is enable and IKE is not established.
//
if (EFI_ERROR (Status) && (Status != EFI_NOT_READY)) {
ShellStatus = SHELL_ACCESS_DENIED;
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_NOSOURCE_INDO), gShellNetwork1HiiHandle, mDstString);
} else if (Status == RETURN_NO_MAPPING) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_NOROUTE_FOUND), gShellNetwork1HiiHandle, mDstString, mSrcString);
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PING_NETWORK_ERROR), gShellNetwork1HiiHandle, L"ping", Status);
}
goto ON_EXIT;
}
Status = gBS->SetTimer (
Private->Timer,
TimerPeriodic,
ONE_SECOND
);
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Control the ping6 process by two factors:
// 1. Hot key
// 2. Private->Status
// 2.1. success means all icmp6 echo request packets get reply packets.
// 2.2. timeout means the last icmp6 echo reply request timeout to get reply.
// 2.3. noready means ping6 process is on-the-go.
//
while (Private->Status == EFI_NOT_READY) {
Status = Private->ProtocolPointers.Poll (Private->IpProtocol);
if (ShellGetExecutionBreakFlag ()) {
Private->Status = EFI_ABORTED;
goto ON_STAT;
}
}
ON_STAT:
//
// Display the statistics in all.
//
gBS->SetTimer (Private->Timer, TimerCancel, 0);
if (Private->TxCount != 0) {
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_PING_STAT),
gShellNetwork1HiiHandle,
Private->TxCount,
(Private->RxCount - Private->FailedCount),
(100 - ((100 * (Private->RxCount - Private->FailedCount)) / Private->TxCount)),
Private->RttSum
);
}
if (Private->RxCount > Private->FailedCount) {
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_PING_RTT),
gShellNetwork1HiiHandle,
Private->RttMin,
Private->RttMin + Private->TimerPeriod,
Private->RttMax,
Private->RttMax + Private->TimerPeriod,
DivU64x64Remainder (Private->RttSum, (Private->RxCount - Private->FailedCount), NULL),
DivU64x64Remainder (Private->RttSum, (Private->RxCount - Private->FailedCount), NULL) + Private->TimerPeriod
);
}
ON_EXIT:
if (Private != NULL) {
NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->TxList) {
TxInfo = BASE_CR (Entry, PING_ICMPX_TX_INFO, Link);
if ((Private->IpProtocol != NULL) && (Private->ProtocolPointers.Cancel != NULL)) {
Status = Private->ProtocolPointers.Cancel (Private->IpProtocol, TxInfo->Token);
}
RemoveEntryList (&TxInfo->Link);
PingDestroyTxInfo (TxInfo, Private->IpChoice);
}
PingFreeRttTimer (Private);
if (Private->Timer != NULL) {
gBS->CloseEvent (Private->Timer);
}
if ((Private->IpProtocol != NULL) && (Private->ProtocolPointers.Cancel != NULL)) {
Status = Private->ProtocolPointers.Cancel (Private->IpProtocol, &Private->RxToken);
}
if (Private->RxToken.Event != NULL) {
gBS->CloseEvent (Private->RxToken.Event);
}
if (Private->IpChildHandle != NULL) {
Ping6DestroyIp6Instance (Private);
}
FreePool (Private);
}
return ShellStatus;
}
/**
Function for 'ping' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
@retval SHELL_SUCCESS The ping processed successfullly.
@retval others The ping processed unsuccessfully.
**/
SHELL_STATUS
EFIAPI
ShellCommandRunPing (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
EFI_IPv6_ADDRESS DstAddress;
EFI_IPv6_ADDRESS SrcAddress;
UINT64 BufferSize;
UINTN SendNumber;
LIST_ENTRY *ParamPackage;
CONST CHAR16 *ValueStr;
UINTN NonOptionCount;
UINT32 IpChoice;
CHAR16 *ProblemParam;
//
// we use IPv6 buffers to hold items...
// make sure this is enough space!
//
ASSERT (sizeof (EFI_IPv4_ADDRESS) <= sizeof (EFI_IPv6_ADDRESS));
ASSERT (sizeof (EFI_IP4_COMPLETION_TOKEN) <= sizeof (EFI_IP6_COMPLETION_TOKEN));
IpChoice = PING_IP_CHOICE_IP4;
ShellStatus = SHELL_SUCCESS;
ProblemParam = NULL;
Status = ShellCommandLineParseEx (PingParamList, &ParamPackage, &ProblemParam, TRUE, FALSE);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellNetwork1HiiHandle, L"ping", ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
if (ShellCommandLineGetFlag (ParamPackage, L"-_ip6")) {
IpChoice = PING_IP_CHOICE_IP6;
}
//
// Parse the parameter of count number.
//
ValueStr = ShellCommandLineGetValue (ParamPackage, L"-n");
if (ValueStr != NULL) {
SendNumber = ShellStrToUintn (ValueStr);
//
// ShellStrToUintn will return 0 when input is 0 or an invalid input string.
//
if ((SendNumber == 0) || (SendNumber > MAX_SEND_NUMBER)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellNetwork1HiiHandle, L"ping", ValueStr);
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
} else {
SendNumber = DEFAULT_SEND_COUNT;
}
//
// Parse the parameter of buffer size.
//
ValueStr = ShellCommandLineGetValue (ParamPackage, L"-l");
if (ValueStr != NULL) {
BufferSize = ShellStrToUintn (ValueStr);
//
// ShellStrToUintn will return 0 when input is 0 or an invalid input string.
//
if ((BufferSize < 16) || (BufferSize > MAX_BUFFER_SIZE)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellNetwork1HiiHandle, L"ping", ValueStr);
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
} else {
BufferSize = DEFAULT_BUFFER_SIZE;
}
ZeroMem (&SrcAddress, sizeof (EFI_IPv6_ADDRESS));
ZeroMem (&DstAddress, sizeof (EFI_IPv6_ADDRESS));
//
// Parse the parameter of source ip address.
//
ValueStr = ShellCommandLineGetValue (ParamPackage, L"-s");
if (ValueStr == NULL) {
ValueStr = ShellCommandLineGetValue (ParamPackage, L"-_s");
}
if (ValueStr != NULL) {
mSrcString = ValueStr;
if (IpChoice == PING_IP_CHOICE_IP6) {
Status = NetLibStrToIp6 (ValueStr, &SrcAddress);
} else {
Status = NetLibStrToIp4 (ValueStr, (EFI_IPv4_ADDRESS *)&SrcAddress);
}
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellNetwork1HiiHandle, L"ping", ValueStr);
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
}
//
// Parse the parameter of destination ip address.
//
NonOptionCount = ShellCommandLineGetCount (ParamPackage);
if (NonOptionCount < 2) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellNetwork1HiiHandle, L"ping");
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
if (NonOptionCount > 2) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellNetwork1HiiHandle, L"ping");
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
ValueStr = ShellCommandLineGetRawValue (ParamPackage, 1);
if (ValueStr != NULL) {
mDstString = ValueStr;
if (IpChoice == PING_IP_CHOICE_IP6) {
Status = NetLibStrToIp6 (ValueStr, &DstAddress);
} else {
Status = NetLibStrToIp4 (ValueStr, (EFI_IPv4_ADDRESS *)&DstAddress);
}
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellNetwork1HiiHandle, L"ping", ValueStr);
ShellStatus = SHELL_INVALID_PARAMETER;
goto ON_EXIT;
}
}
//
// Enter into ping process.
//
ShellStatus = ShellPing (
(UINT32)SendNumber,
(UINT32)BufferSize,
&SrcAddress,
&DstAddress,
IpChoice
);
ON_EXIT:
ShellCommandLineFreeVarList (ParamPackage);
return ShellStatus;
}
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