/**
Return the best matching command for the passed in command name. The match
does not have to be exact, it just needs to be unique. This enables commands
to be shortened to the smallest set of starting characters that is unique.
@param CommandName Name of command to search for
@return NULL CommandName did not match or was not unique
Other Pointer to EBL_COMMAND_TABLE entry for CommandName
**/
EBL_COMMAND_TABLE *
EblGetCommand (
IN CHAR8 *CommandName
)
{
UINTN Index;
UINTN BestMatchCount;
UINTN Length;
EBL_COMMAND_TABLE *Match;
CHAR8 *Str;
Length = AsciiStrLen (CommandName);
Str = AsciiStrStr (CommandName, ".");
if (Str != NULL) {
// If the command includes a trailing . command extension skip it for the match.
// Example: hexdump.4
Length = (UINTN)(Str - CommandName);
}
for (Index = 0, BestMatchCount = 0, Match = NULL; Index < mCmdTableNextFreeIndex; Index++) {
if (AsciiStriCmp (mCmdTable[Index]->Name, CommandName) == 0) {
// match a command exactly
return mCmdTable[Index];
}
if (AsciiStrniCmp (CommandName, mCmdTable[Index]->Name, Length) == 0) {
// partial match, so keep looking to make sure there is only one partial match
BestMatchCount++;
Match = mCmdTable[Index];
}
}
if (BestMatchCount == 1) {
return Match;
}
//
// We had no matches or too many matches
//
return NULL;
}
/**
Perform a dir on a device. The device must support Simple File System Protocol
or the FV protocol.
Argv[0] - "dir"
Argv[1] - Device Name:path. Path is optional
Argv[2] - Optional filename to match on. A leading * means match substring
Argv[3] - Optional FV file type
dir fs1:\efi ; perform a dir on fs1: device in the efi directory
dir fs1:\efi *.efi; perform a dir on fs1: device in the efi directory but
only print out files that contain the string *.efi
dir fv1:\ ; perform a dir on fv1: device in the efi directory
NOTE: fv devices do not contain subdirs
dir fv1:\ * PEIM ; will match all files of type PEIM
@param Argc Number of command arguments in Argv
@param Argv Array of strings that represent the parsed command line.
Argv[0] is the command name
@return EFI_SUCCESS
**/
EFI_STATUS
EblDirCmd (
IN UINTN Argc,
IN CHAR8 **Argv
)
{
EFI_STATUS Status;
EFI_OPEN_FILE *File;
EFI_FILE_INFO *DirInfo;
UINTN ReadSize;
UINTN CurrentRow;
CHAR16 *MatchSubString;
EFI_STATUS GetNextFileStatus;
UINTN Key;
EFI_FV_FILETYPE SearchType;
EFI_FV_FILETYPE Type;
EFI_FV_FILE_ATTRIBUTES Attributes;
UINTN Size;
EFI_GUID NameGuid;
EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;
UINT32 AuthenticationStatus;
VOID *Section;
UINTN SectionSize;
EFI_FV_FILETYPE Index;
UINTN Length;
UINTN BestMatchCount;
CHAR16 UnicodeFileName[MAX_CMD_LINE];
CHAR8 *Path;
CHAR8 *TypeStr;
UINTN TotalSize;
if (Argc <= 1) {
Path = EfiGetCwd ();
if (Path == NULL) {
return EFI_SUCCESS;
}
} else {
Path = Argv[1];
}
File = EfiOpen (Path, EFI_FILE_MODE_READ, 0);
if (File == NULL) {
return EFI_SUCCESS;
}
if (File->Type == EfiOpenFirmwareVolume) {
// FV Dir
SearchType = EFI_FV_FILETYPE_ALL;
UnicodeFileName[0] = '\0';
MatchSubString = &UnicodeFileName[0];
if (Argc > 2) {
AsciiStrToUnicodeStr (Argv[2], UnicodeFileName);
if (UnicodeFileName[0] == '*') {
// Handle *Name substring matching
MatchSubString = &UnicodeFileName[1];
}
// Handle file type matchs
if (Argc > 3) {
// match a specific file type, always last argument
Length = AsciiStrLen (Argv[3]);
for (Index = 1, BestMatchCount = 0; Index < sizeof (gFvFileType)/sizeof (CHAR8 *); Index++) {
if (AsciiStriCmp (gFvFileType[Index], Argv[3]) == 0) {
// exact match
SearchType = Index;
break;
}
if (AsciiStrniCmp (Argv[3], gFvFileType[Index], Length) == 0) {
// partial match, so keep looking to make sure there is only one partial match
BestMatchCount++;
SearchType = Index;
}
}
if (BestMatchCount > 1) {
SearchType = EFI_FV_FILETYPE_ALL;
}
}
}
TotalSize = 0;
Fv = File->Fv;
Key = 0;
CurrentRow = 0;
do {
Type = SearchType;
GetNextFileStatus = Fv->GetNextFile (
Fv,
&Key,
&Type,
&NameGuid,
&Attributes,
&Size
);
if (!EFI_ERROR (GetNextFileStatus)) {
TotalSize += Size;
// Calculate size of entire file
Section = NULL;
Size = 0;
Status = Fv->ReadFile (
Fv,
&NameGuid,
Section,
&Size,
&Type,
&Attributes,
&AuthenticationStatus
);
if (!((Status == EFI_BUFFER_TOO_SMALL) || !EFI_ERROR (Status))) {
// EFI_SUCCESS or EFI_BUFFER_TOO_SMALL mean size is valid
Size = 0;
}
TypeStr = (Type <= EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) ? gFvFileType[Type] : "UNKNOWN";
// read the UI seciton to do a name match.
Section = NULL;
Status = Fv->ReadSection (
Fv,
&NameGuid,
EFI_SECTION_USER_INTERFACE,
0,
&Section,
&SectionSize,
&AuthenticationStatus
);
if (!EFI_ERROR (Status)) {
if (StrStr (Section, MatchSubString) != NULL) {
AsciiPrint ("%,9d %7a %g %s\n", Size, TypeStr, &NameGuid, Section);
if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {
break;
}
}
FreePool (Section);
} else {
if (*MatchSubString == '\0') {
AsciiPrint ("%,9d %7a %g\n", Size, TypeStr, &NameGuid);
if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {
break;
}
}
}
}
} while (!EFI_ERROR (GetNextFileStatus));
if (SearchType == EFI_FV_FILETYPE_ALL) {
AsciiPrint ("%,20d bytes in files %,d bytes free\n", TotalSize, File->FvSize - File->FvHeaderSize - TotalSize);
}
} else if ((File->Type == EfiOpenFileSystem) || (File->Type == EfiOpenBlockIo)) {
// Simple File System DIR
if (File->FsFileInfo == NULL) {
return EFI_SUCCESS;
}
if (!(File->FsFileInfo->Attribute & EFI_FILE_DIRECTORY)) {
return EFI_SUCCESS;
}
// Handle *Name substring matching
MatchSubString = NULL;
UnicodeFileName[0] = '\0';
if (Argc > 2) {
AsciiStrToUnicodeStr (Argv[2], UnicodeFileName);
if (UnicodeFileName[0] == '*') {
MatchSubString = &UnicodeFileName[1];
}
}
File->FsFileHandle->SetPosition (File->FsFileHandle, 0);
for (CurrentRow = 0;;) {
// First read gets the size
DirInfo = NULL;
ReadSize = 0;
Status = File->FsFileHandle->Read (File->FsFileHandle, &ReadSize, DirInfo);
if (Status == EFI_BUFFER_TOO_SMALL) {
// Allocate the buffer for the real read
DirInfo = AllocatePool (ReadSize);
if (DirInfo == NULL) {
goto Done;
}
// Read the data
Status = File->FsFileHandle->Read (File->FsFileHandle, &ReadSize, DirInfo);
if ((EFI_ERROR (Status)) || (ReadSize == 0)) {
break;
}
} else {
break;
}
if (MatchSubString != NULL) {
if (StrStr (&DirInfo->FileName[0], MatchSubString) == NULL) {
// does not match *name argument, so skip
continue;
}
} else if (UnicodeFileName[0] != '\0') {
// is not an exact match for name argument, so skip
if (StrCmp (&DirInfo->FileName[0], UnicodeFileName) != 0) {
continue;
}
}
if (DirInfo->Attribute & EFI_FILE_DIRECTORY) {
AsciiPrint (" <DIR> %s\n", &DirInfo->FileName[0]);
} else {
AsciiPrint ("%,14ld %s\n", DirInfo->FileSize, &DirInfo->FileName[0]);
}
if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {
break;
}
FreePool (DirInfo);
}
Done:
if (DirInfo != NULL) {
FreePool (DirInfo);
}
}
EfiClose (File);
return EFI_SUCCESS;
}
