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audk/ShellPkg/Library/UefiShellDriver1CommandsLib/Connect.c

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/** @file
Main file for connect shell Driver1 function.
Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiShellDriver1CommandsLib.h"
/**
Create all handles associate with every device path node.
@param DevicePathToConnect The device path which will be connected.
@retval EFI_SUCCESS All handles associate with every device path node
have been created.
@retval EFI_INVALID_PARAMETER DevicePathToConnect is NULL.
@retval EFI_NOT_FOUND Create the handle associate with one device path
node failed
**/
EFI_STATUS
ShellConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect
)
{
EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath;
EFI_STATUS Status;
EFI_HANDLE Handle;
EFI_HANDLE PreviousHandle;
if (DevicePathToConnect == NULL) {
return EFI_INVALID_PARAMETER;
}
PreviousHandle = NULL;
do{
RemainingDevicePath = DevicePathToConnect;
Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &RemainingDevicePath, &Handle);
if (!EFI_ERROR (Status) && (Handle != NULL)) {
if (PreviousHandle == Handle) {
Status = EFI_NOT_FOUND;
} else {
PreviousHandle = Handle;
Status = gBS->ConnectController (Handle, NULL, RemainingDevicePath, FALSE);
}
}
} while (!EFI_ERROR (Status) && !IsDevicePathEnd (RemainingDevicePath) );
return Status;
}
/**
Connect drivers for PCI root bridge.
@retval EFI_SUCCESS Connect drivers successfully.
@retval EFI_NOT_FOUND Cannot find PCI root bridge device.
**/
EFI_STATUS
ShellConnectPciRootBridge (
VOID
)
{
UINTN RootBridgeHandleCount;
EFI_HANDLE *RootBridgeHandleBuffer;
UINTN RootBridgeIndex;
EFI_STATUS Status;
RootBridgeHandleCount = 0;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiPciRootBridgeIoProtocolGuid,
NULL,
&RootBridgeHandleCount,
&RootBridgeHandleBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
for (RootBridgeIndex = 0; RootBridgeIndex < RootBridgeHandleCount; RootBridgeIndex++) {
gBS->ConnectController (RootBridgeHandleBuffer[RootBridgeIndex], NULL, NULL, FALSE);
}
return EFI_SUCCESS;
}
/**
Connect controller(s) and driver(s).
@param[in] ControllerHandle The handle to the controller. Should have driver binding on it.
@param[in] DriverHandle The handle to the driver. Should have driver binding.
@param[in] Recursive TRUE to connect recursively, FALSE otherwise.
@param[in] Output TRUE to have info on the screen, FALSE otherwise.
@param[in] AlwaysOutput Override Output for errors.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
ConnectControllers (
IN CONST EFI_HANDLE ControllerHandle OPTIONAL,
IN CONST EFI_HANDLE DriverHandle OPTIONAL,
IN CONST BOOLEAN Recursive,
IN CONST BOOLEAN Output,
IN CONST BOOLEAN AlwaysOutput
)
{
EFI_STATUS Status;
EFI_STATUS Status2;
EFI_HANDLE *ControllerHandleList;
EFI_HANDLE *DriverHandleList;
EFI_HANDLE *HandleWalker;
ControllerHandleList = NULL;
Status = EFI_NOT_FOUND;
Status2 = EFI_NOT_FOUND;
//
// If we have a single handle to connect make that a 'list'
//
if (DriverHandle == NULL) {
DriverHandleList = NULL;
} else {
DriverHandleList = AllocateZeroPool(2*sizeof(EFI_HANDLE));
if (DriverHandleList == NULL) {
return (EFI_OUT_OF_RESOURCES);
}
DriverHandleList[0] = DriverHandle;
DriverHandleList[1] = NULL;
}
//
// do we connect all controllers (with a loop) or a single one...
// This is where we call the gBS->ConnectController function.
//
if (ControllerHandle == NULL) {
ControllerHandleList = GetHandleListByProtocol(&gEfiDevicePathProtocolGuid);
for (HandleWalker = ControllerHandleList
; HandleWalker != NULL && *HandleWalker != NULL
; HandleWalker++
){
Status = gBS->ConnectController(*HandleWalker, DriverHandleList, NULL, Recursive);
if (!EFI_ERROR(Status)) {
Status2 = EFI_SUCCESS;
}
if ((Output && !EFI_ERROR(Status)) || AlwaysOutput) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_HANDLE_RESULT), gShellDriver1HiiHandle, L"Connect", ConvertHandleToHandleIndex(*HandleWalker), Status);
}
}
} else {
Status = gBS->ConnectController(ControllerHandle, DriverHandleList, NULL, Recursive);
if (!EFI_ERROR(Status)) {
Status2 = EFI_SUCCESS;
}
if ((Output && !EFI_ERROR(Status)) || AlwaysOutput) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_HANDLE_RESULT), gShellDriver1HiiHandle, L"Connect", ConvertHandleToHandleIndex(ControllerHandle), Status);
}
}
//
// Free any memory we allocated.
//
if (ControllerHandleList != NULL) {
FreePool(ControllerHandleList);
}
if (DriverHandleList != NULL) {
FreePool(DriverHandleList);
}
return (Status2);
}
/**
Do a connect from an EFI variable via it's key name.
@param[in] Key The name of the EFI Variable.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
ConnectFromDevPaths (
IN CONST CHAR16 *Key
)
{
EFI_DEVICE_PATH_PROTOCOL *DevPath;
EFI_DEVICE_PATH_PROTOCOL *CopyOfDevPath;
EFI_DEVICE_PATH_PROTOCOL *Instance;
EFI_DEVICE_PATH_PROTOCOL *Next;
UINTN Length;
UINTN Index;
UINTN HandleArrayCount;
UINTN Size;
EFI_HANDLE *HandleArray;
EFI_STATUS Status;
BOOLEAN AtLeastOneConnected;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT8 Class[3];
DevPath = NULL;
Length = 0;
AtLeastOneConnected = FALSE;
//
// Get the DevicePath buffer from the variable...
//
Status = gRT->GetVariable((CHAR16*)Key, (EFI_GUID*)&gEfiGlobalVariableGuid, NULL, &Length, DevPath);
if (Status == EFI_BUFFER_TOO_SMALL) {
DevPath = AllocateZeroPool(Length);
if (DevPath == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = gRT->GetVariable((CHAR16*)Key, (EFI_GUID*)&gEfiGlobalVariableGuid, NULL, &Length, DevPath);
if (EFI_ERROR (Status)) {
if (DevPath != NULL) {
FreePool (DevPath);
}
return Status;
}
} else if (EFI_ERROR (Status)) {
return Status;
}
Status = EFI_NOT_FOUND;
CopyOfDevPath = DevPath;
//
// walk the list of devices and connect them
//
do {
//
// Check every instance of the console variable
//
Instance = GetNextDevicePathInstance (&CopyOfDevPath, &Size);
if (Instance == NULL) {
if (DevPath != NULL) {
FreePool (DevPath);
}
return EFI_UNSUPPORTED;
}
Next = Instance;
while (!IsDevicePathEndType (Next)) {
Next = NextDevicePathNode (Next);
}
SetDevicePathEndNode (Next);
//
// connect short form device path
//
if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
|| (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
)) {
Status = ShellConnectPciRootBridge ();
if (EFI_ERROR(Status)) {
FreePool(Instance);
FreePool(DevPath);
return Status;
}
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiPciIoProtocolGuid,
NULL,
&HandleArrayCount,
&HandleArray
);
if (!EFI_ERROR (Status)) {
for (Index = 0; Index < HandleArrayCount; Index++) {
Status = gBS->HandleProtocol (
HandleArray[Index],
&gEfiPciIoProtocolGuid,
(VOID **)&PciIo
);
if (!EFI_ERROR (Status)) {
Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0x09, 3, &Class);
if (!EFI_ERROR (Status)) {
if ((PCI_CLASS_SERIAL == Class[2]) &&
(PCI_CLASS_SERIAL_USB == Class[1])) {
Status = gBS->ConnectController (
HandleArray[Index],
NULL,
Instance,
FALSE
);
if (!EFI_ERROR(Status)) {
AtLeastOneConnected = TRUE;
}
}
}
}
}
}
if (HandleArray != NULL) {
FreePool (HandleArray);
}
} else {
//
// connect the entire device path
//
Status = ShellConnectDevicePath (Instance);
if (!EFI_ERROR (Status)) {
AtLeastOneConnected = TRUE;
}
}
FreePool (Instance);
} while (CopyOfDevPath != NULL);
if (DevPath != NULL) {
FreePool(DevPath);
}
if (AtLeastOneConnected) {
return EFI_SUCCESS;
} else {
return EFI_NOT_FOUND;
}
}
/**
Convert the handle identifiers from strings and then connect them.
One of them should have driver binding and either can be NULL.
@param[in] Handle1 The first handle.
@param[in] Handle2 The second handle.
@param[in] Recursive TRUE to do connect recursively. FALSE otherwise.
@param[in] Output TRUE to have output to screen. FALSE otherwise.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
ConvertAndConnectControllers (
IN EFI_HANDLE *Handle1 OPTIONAL,
IN EFI_HANDLE *Handle2 OPTIONAL,
IN CONST BOOLEAN Recursive,
IN CONST BOOLEAN Output
)
{
//
// if only one is NULL verify it's the proper one...
//
if ( (Handle1 == NULL && Handle2 != NULL)
|| (Handle1 != NULL && Handle2 == NULL)
){
//
// Figure out which one should be NULL and move the handle to the right place.
// If Handle1 is NULL then test Handle2 and vise versa.
// The one that DOES has driver binding must be Handle2
//
if (Handle1 == NULL) {
if (EFI_ERROR(gBS->OpenProtocol(Handle2, &gEfiDriverBindingProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
// swap
Handle1 = Handle2;
Handle2 = NULL;
} else {
// We're all good...
}
} else {
if (EFI_ERROR(gBS->OpenProtocol(Handle1, &gEfiDriverBindingProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
// We're all good...
} else {
// swap
Handle2 = Handle1;
Handle1 = NULL;
}
}
}
return (ConnectControllers(Handle1, Handle2, Recursive, Output, (BOOLEAN)(Handle2 != NULL && Handle1 != NULL)));
}
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-c", TypeFlag},
{L"-r", TypeFlag},
{NULL, TypeMax}
};
/**
Function for 'connect' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunConnect (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *Param1;
CONST CHAR16 *Param2;
UINTN Count;
EFI_HANDLE Handle1;
EFI_HANDLE Handle2;
UINT64 Intermediate;
ShellStatus = SHELL_SUCCESS;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize();
ASSERT_EFI_ERROR(Status);
Status = CommandInit();
ASSERT_EFI_ERROR(Status);
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDriver1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
//
// if more than 2 'value' parameters (plus the name one) or either -r or -c with any value parameters we have too many parameters
//
Count = (gInReconnect?0x4:0x3);
if ((ShellCommandLineGetCount(Package) > Count)
||((ShellCommandLineGetFlag(Package, L"-r") || ShellCommandLineGetFlag(Package, L"-c")) && ShellCommandLineGetCount(Package)>1)
||(ShellCommandLineGetFlag(Package, L"-r") && ShellCommandLineGetFlag(Package, L"-c") )
){
//
// error for too many parameters
//
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDriver1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetFlag(Package, L"-c")) {
//
// do the conin and conout from EFI variables
// if the first fails dont 'loose' the error
//
Status = ConnectFromDevPaths(L"ConInDev");
if (EFI_ERROR(Status)) {
ConnectFromDevPaths(L"ConOutDev");
} else {
Status = ConnectFromDevPaths(L"ConOutDev");
}
if (EFI_ERROR(Status)) {
ConnectFromDevPaths(L"ErrOutDev");
} else {
Status = ConnectFromDevPaths(L"ErrOutDev");
}
if (EFI_ERROR(Status)) {
ConnectFromDevPaths(L"ErrOut");
} else {
Status = ConnectFromDevPaths(L"ErrOut");
}
if (EFI_ERROR(Status)) {
ConnectFromDevPaths(L"ConIn");
} else {
Status = ConnectFromDevPaths(L"ConIn");
}
if (EFI_ERROR(Status)) {
ConnectFromDevPaths(L"ConOut");
} else {
Status = ConnectFromDevPaths(L"ConOut");
}
if (EFI_ERROR(Status)) {
ShellStatus = SHELL_DEVICE_ERROR;
}
} else {
//
// 0, 1, or 2 specific handles and possibly recursive
//
Param1 = ShellCommandLineGetRawValue(Package, 1);
Param2 = ShellCommandLineGetRawValue(Package, 2);
Count = ShellCommandLineGetCount(Package);
if (Param1 != NULL) {
Status = ShellConvertStringToUint64(Param1, &Intermediate, TRUE, FALSE);
Handle1 = ConvertHandleIndexToHandle((UINTN)Intermediate);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, Param1);
ShellStatus = SHELL_INVALID_PARAMETER;
}
} else {
Handle1 = NULL;
}
if (Param2 != NULL) {
Status = ShellConvertStringToUint64(Param2, &Intermediate, TRUE, FALSE);
Handle2 = ConvertHandleIndexToHandle((UINTN)Intermediate);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, Param2);
ShellStatus = SHELL_INVALID_PARAMETER;
}
} else {
Handle2 = NULL;
}
if (ShellStatus == SHELL_SUCCESS) {
if (Param1 != NULL && Handle1 == NULL){
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, Param1);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (Param2 != NULL && Handle2 == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, Param2);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (Handle2 != NULL && Handle1 != NULL && EFI_ERROR(gBS->OpenProtocol(Handle2, &gEfiDriverBindingProtocolGuid, NULL, gImageHandle, NULL, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, Param2);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = ConvertAndConnectControllers(Handle1, Handle2, ShellCommandLineGetFlag(Package, L"-r"), (BOOLEAN)(Count!=0));
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CONNECT_NONE), gShellDriver1HiiHandle);
ShellStatus = SHELL_DEVICE_ERROR;
}
}
}
}
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}
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