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Updates the UEFI Shell to produce the new protocol with additional 4 functions. 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>
Reviewed by: Daryl McDaniel <daryl.mcdaniel@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15764 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jaben Carsey 2014-08-06 16:18:38 +00:00 committed by jcarsey
parent 7aae3c355f
commit 09fd5328a4
3 changed files with 179 additions and 35 deletions
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2
ShellPkg/Application/Shell/Shell.h
View File

@ -96,7 +96,7 @@ typedef struct {
typedef struct {
EFI_SHELL_PARAMETERS_PROTOCOL *NewShellParametersProtocol;
EFI_SHELL_PROTOCOL *NewEfiShellProtocol;
EFI_SHELL_PROTOCOL21 *NewEfiShellProtocol;
BOOLEAN PageBreakEnabled;
BOOLEAN RootShellInstance;
SHELL_INIT_SETTINGS ShellInitSettings;

206
ShellPkg/Application/Shell/ShellProtocol.c
View File

@ -1145,12 +1145,39 @@ EfiShellCreateFile(
return (EFI_NOT_FOUND);
}
Status = InternalOpenFileDevicePath(DevicePath, FileHandle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE|EFI_FILE_MODE_CREATE, FileAttribs); // 0 = no specific file attributes
Status = InternalOpenFileDevicePath(DevicePath, FileHandle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE|EFI_FILE_MODE_CREATE, FileAttribs);
FreePool(DevicePath);
return(Status);
}
/**
Register a GUID and a localized human readable name for it.
If Guid is not assigned a name, then assign GuidName to Guid. This list of GUID
names must be used whenever a shell command outputs GUID information.
This function is only available when the major and minor versions in the
EfiShellProtocol are greater than or equal to 2 and 1, respectively.
@param[in] Guid A pointer to the GUID being registered.
@param[in] GuidName A pointer to the localized name for the GUID being registered.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_INVALID_PARAMETER Guid was NULL.
@retval EFI_INVALID_PARAMETER GuidName was NULL.
@retval EFI_ACCESS_DENIED Guid already is assigned a name.
**/
EFI_STATUS
EFIAPI
EfiShellRegisterGuidName(
IN CONST EFI_GUID *Guid,
IN CONST CHAR16 *GuidName
)
{
return (AddNewGuidNameMapping(Guid, GuidName, NULL));
}
/**
Opens a file or a directory by file name.
@ -2027,6 +2054,87 @@ EfiShellFindFilesInDir(
}
SHELL_FREE_NON_NULL(BasePath);
return(Status);
}
/**
Get the GUID value from a human readable name.
If GuidName is a known GUID name, then update Guid to have the correct value for
that GUID.
This function is only available when the major and minor versions in the
EfiShellProtocol are greater than or equal to 2 and 1, respectively.
@param[in] GuidName A pointer to the localized name for the GUID being queried.
@param[out] Guid A pointer to the GUID structure to be filled in.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_INVALID_PARAMETER Guid was NULL.
@retval EFI_INVALID_PARAMETER GuidName was NULL.
@retval EFI_NOT_FOUND GuidName is not a known GUID Name.
**/
EFI_STATUS
EFIAPI
EfiShellGetGuidFromName(
IN CONST CHAR16 *GuidName,
OUT EFI_GUID *Guid
)
{
EFI_GUID *NewGuid;
EFI_STATUS Status;
if (Guid == NULL || GuidName == NULL) {
return (EFI_INVALID_PARAMETER);
}
Status = GetGuidFromStringName(GuidName, NULL, &NewGuid);
if (!EFI_ERROR(Status)) {
CopyGuid(NewGuid, Guid);
}
return (Status);
}
/**
Get the human readable name for a GUID from the value.
If Guid is assigned a name, then update *GuidName to point to the name. The callee
should not modify the value.
This function is only available when the major and minor versions in the
EfiShellProtocol are greater than or equal to 2 and 1, respectively.
@param[in] Guid A pointer to the GUID being queried.
@param[out] GuidName A pointer to a pointer the localized to name for the GUID being requested
@retval EFI_SUCCESS The operation was successful.
@retval EFI_INVALID_PARAMETER Guid was NULL.
@retval EFI_INVALID_PARAMETER GuidName was NULL.
@retval EFI_NOT_FOUND Guid is not assigned a name.
**/
EFI_STATUS
EFIAPI
EfiShellGetGuidName(
IN CONST EFI_GUID *Guid,
OUT CONST CHAR16 **GuidName
)
{
CHAR16 *Name;
if (Guid == NULL || GuidName == NULL) {
return (EFI_INVALID_PARAMETER);
}
Name = GetStringNameFromGuid(Guid, NULL);
if (Name == NULL || StrLen(Name) == 0) {
SHELL_FREE_NON_NULL(Name);
return (EFI_NOT_FOUND);
}
*GuidName = AddBufferToFreeList(Name);
return (EFI_SUCCESS);
}
/**
@ -2461,34 +2569,32 @@ EfiShellOpenFileList(
}
/**
This function updated with errata.
Gets the environment variable and Attributes, or list of environment variables. Can be
used instead of GetEnv().
Gets either a single or list of environment variables.
This function returns the current value of the specified environment variable and
the Attributes. If no variable name was specified, then all of the known
variables will be returned.
If name is not NULL then this function returns the current value of the specified
environment variable.
@param[in] Name A pointer to the environment variable name. If Name is NULL,
then the function will return all of the defined shell
environment variables. In the case where multiple environment
variables are being returned, each variable will be terminated
by a NULL, and the list will be terminated by a double NULL.
@param[out] Attributes If not NULL, a pointer to the returned attributes bitmask for
the environment variable. In the case where Name is NULL, and
multiple environment variables are being returned, Attributes
is undefined.
If Name is NULL, then a list of all environment variable names is returned. Each is a
NULL terminated string with a double NULL terminating the list.
@param Name A pointer to the environment variable name. If
Name is NULL, then the function will return all
of the defined shell environment variables. In
the case where multiple environment variables are
being returned, each variable will be terminated by
a NULL, and the list will be terminated by a double
NULL.
@return !=NULL A pointer to the returned string.
The returned pointer does not need to be freed by the caller.
@retval NULL The environment variable doesn't exist or there are
no environment variables.
@retval NULL The environment variable doesn’t exist.
@return A non-NULL value points to the variable’s value. The returned
pointer does not need to be freed by the caller.
**/
CONST CHAR16 *
EFIAPI
EfiShellGetEnv(
IN CONST CHAR16 *Name
EFIAPI
EfiShellGetEnvEx(
IN CONST CHAR16 *Name,
OUT UINT32 *Attributes OPTIONAL
)
{
EFI_STATUS Status;
@ -2556,14 +2662,14 @@ EfiShellGetEnv(
//
// get the size we need for this EnvVariable
//
Status = SHELL_GET_ENVIRONMENT_VARIABLE(Name, &Size, Buffer);
Status = SHELL_GET_ENVIRONMENT_VARIABLE_AND_ATTRIBUTES(Name, Attributes, &Size, Buffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
//
// Allocate the space and recall the get function
//
Buffer = AllocateZeroPool(Size);
ASSERT(Buffer != NULL);
Status = SHELL_GET_ENVIRONMENT_VARIABLE(Name, &Size, Buffer);
Status = SHELL_GET_ENVIRONMENT_VARIABLE_AND_ATTRIBUTES(Name, Attributes, &Size, Buffer);
}
//
// we didnt get it (might not exist)
@ -2583,6 +2689,38 @@ EfiShellGetEnv(
return (AddBufferToFreeList(Buffer));
}
/**
Gets either a single or list of environment variables.
If name is not NULL then this function returns the current value of the specified
environment variable.
If Name is NULL, then a list of all environment variable names is returned. Each is a
NULL terminated string with a double NULL terminating the list.
@param Name A pointer to the environment variable name. If
Name is NULL, then the function will return all
of the defined shell environment variables. In
the case where multiple environment variables are
being returned, each variable will be terminated by
a NULL, and the list will be terminated by a double
NULL.
@retval !=NULL A pointer to the returned string.
The returned pointer does not need to be freed by the caller.
@retval NULL The environment variable doesn't exist or there are
no environment variables.
**/
CONST CHAR16 *
EFIAPI
EfiShellGetEnv(
IN CONST CHAR16 *Name
)
{
return (EfiShellGetEnvEx(Name, NULL));
}
/**
Internal variable setting function. Allows for setting of the read only variables.
@ -3241,7 +3379,7 @@ EfiShellSetAlias(
// Pure FILE_HANDLE operations are passed to FileHandleLib
// these functions are indicated by the *
EFI_SHELL_PROTOCOL mShellProtocol = {
EFI_SHELL_PROTOCOL21 mShellProtocol = {
EfiShellExecute,
EfiShellGetEnv,
EfiShellSetEnv,
@ -3282,8 +3420,14 @@ EFI_SHELL_PROTOCOL mShellProtocol = {
EfiShellOpenRoot,
EfiShellOpenRootByHandle,
NULL,
SHELL_MAJOR_VERSION,
SHELL_MINOR_VERSION
2, // SHELL_MAJOR_VERSION,
1, // SHELL_MINOR_VERSION,
// New for UEFI Shell 2.1
EfiShellRegisterGuidName,
EfiShellGetGuidName,
EfiShellGetGuidFromName,
EfiShellGetEnvEx
};
/**
@ -3303,7 +3447,7 @@ EFI_SHELL_PROTOCOL mShellProtocol = {
EFI_STATUS
EFIAPI
CreatePopulateInstallShellProtocol (
IN OUT EFI_SHELL_PROTOCOL **NewShell
IN OUT EFI_SHELL_PROTOCOL21 **NewShell
)
{
EFI_STATUS Status;
@ -3430,7 +3574,7 @@ CreatePopulateInstallShellProtocol (
EFI_STATUS
EFIAPI
CleanUpShellProtocol (
IN OUT EFI_SHELL_PROTOCOL *NewShell
IN OUT EFI_SHELL_PROTOCOL21 *NewShell
)
{
EFI_STATUS Status;

6
ShellPkg/Application/Shell/ShellProtocol.h
View File

@ -44,7 +44,7 @@ typedef struct {
EFI_STATUS
EFIAPI
CreatePopulateInstallShellProtocol (
IN OUT EFI_SHELL_PROTOCOL **NewShell
IN OUT EFI_SHELL_PROTOCOL21 **NewShell
);
/**
@ -60,7 +60,7 @@ CreatePopulateInstallShellProtocol (
EFI_STATUS
EFIAPI
CleanUpShellProtocol (
IN OUT EFI_SHELL_PROTOCOL *NewShell
IN OUT EFI_SHELL_PROTOCOL21 *NewShell
);
/**
@ -657,7 +657,7 @@ EfiShellOpenFileList(
@param Name A pointer to the environment variable name
@return !=NULL The environment variable's value. The returned
@retval !=NULL The environment variable's value. The returned
pointer does not need to be freed by the caller.
@retval NULL The environment variable doesn't exist.
**/