/*
- * refit/lib.c
+ * refind/lib.c
* General library functions
*
* Copyright (c) 2006-2009 Christoph Pfisterer
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
- * Modifications copyright (c) 2012 Roderick W. Smith
- *
+ * Modifications copyright (c) 2012-2014 Roderick W. Smith
+ *
* Modifications distributed under the terms of the GNU General Public
* License (GPL) version 3 (GPLv3), a copy of which must be distributed
* with this source code or binaries made from it.
- *
+ *
*/
#include "global.h"
#include "screen.h"
#include "../include/refit_call_wrapper.h"
#include "../include/RemovableMedia.h"
+#include "gpt.h"
#ifdef __MAKEWITH_GNUEFI
#define EfiReallocatePool ReallocatePool
//#define EndDevicePath DevicePath
#endif
+// "Magic" signatures for various filesystems
+#define FAT_MAGIC 0xAA55
+#define EXT2_SUPER_MAGIC 0xEF53
+#define HFSPLUS_MAGIC1 0x2B48
+#define HFSPLUS_MAGIC2 0x5848
+#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
+#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
+#define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs"
+#define BTRFS_SIGNATURE "_BHRfS_M"
+
// variables
EFI_HANDLE SelfImageHandle;
REFIT_VOLUME *SelfVolume = NULL;
REFIT_VOLUME **Volumes = NULL;
UINTN VolumesCount = 0;
+extern GPT_DATA *gPartitions;
// Maximum size for disk sectors
#define SECTOR_SIZE 4096
-// Default names for volume badges (mini-icon to define disk type) and icons
-#define VOLUME_BADGE_NAME L".VolumeBadge.icns"
-#define VOLUME_ICON_NAME L".VolumeIcon.icns"
+// Number of bytes to read from a partition to determine its filesystem type
+// and identify its boot loader, and hence probable BIOS-mode OS installation
+#define SAMPLE_SIZE 69632 /* 68 KiB -- ReiserFS superblock begins at 64 KiB */
+
// functions
// isn't present.
VOID CleanUpPathNameSlashes(IN OUT CHAR16 *PathName) {
CHAR16 *NewName;
- UINTN i, FinalChar = 0;
+ UINTN i, Length, FinalChar = 0;
BOOLEAN LastWasSlash = FALSE;
- NewName = AllocateZeroPool(sizeof(CHAR16) * (StrLen(PathName) + 2));
+ Length = StrLen(PathName);
+ NewName = AllocateZeroPool(sizeof(CHAR16) * (Length + 2));
if (NewName != NULL) {
for (i = 0; i < StrLen(PathName); i++) {
if ((PathName[i] == L'/') || (PathName[i] == L'\\')) {
} // if allocation OK
} // CleanUpPathNameSlashes()
-// VOID CleanUpPathNameSlashes(IN OUT CHAR16 *PathName) {
-// CHAR16 *NewName;
-// UINTN i, FinalChar = 0;
-// BOOLEAN LastWasSlash = FALSE;
-//
-// NewName = AllocateZeroPool(sizeof(CHAR16) * (StrLen(PathName) + 4));
-// if (NewName != NULL) {
-// for (i = 0; i < StrLen(PathName); i++) {
-// if ((PathName[i] == L'/') || (PathName[i] == L'\\')) {
-// if ((!LastWasSlash) /* && (FinalChar != 0) */)
-// NewName[FinalChar++] = L'\\';
-// LastWasSlash = TRUE;
-// } else {
-// if (FinalChar == 0) {
-// NewName[FinalChar++] = L'\\';
-// }
-// NewName[FinalChar++] = PathName[i];
-// LastWasSlash = FALSE;
-// } // if/else
-// } // for
-// NewName[FinalChar] = 0;
-// if ((FinalChar > 1) && (NewName[FinalChar - 1] == L'\\'))
-// NewName[--FinalChar] = 0;
-// if (FinalChar == 0) {
-// NewName[0] = L'\\';
-// NewName[1] = 0;
-// }
-// // Copy the transformed name back....
-// StrCpy(PathName, NewName);
-// FreePool(NewName);
-// } // if allocation OK
-// } // CleanUpPathNameSlashes()
-
// Splits an EFI device path into device and filename components. For instance, if InString is
// PciRoot(0x0)/Pci(0x1f,0x2)/Ata(Secondary,Master,0x0)/HD(2,GPT,8314ae90-ada3-48e9-9c3b-09a88f80d921,0x96028,0xfa000)/\bzImage-3.5.1.efi,
// this function will truncate that input to
// after that string (after some cleanup) as the return value, and truncating the original
// input value.
// If InString contains no ")" character, this function leaves the original input string
-// unmodified and also returns that string.
+// unmodified and also returns that string. If InString is NULL, this function returns NULL.
static CHAR16* SplitDeviceString(IN OUT CHAR16 *InString) {
INTN i;
CHAR16 *FileName = NULL;
BOOLEAN Found = FALSE;
- i = StrLen(InString) - 1;
- while ((i >= 0) && (!Found)) {
- if (InString[i] == L')') {
- Found = TRUE;
- FileName = StrDuplicate(&InString[i + 1]);
- CleanUpPathNameSlashes(FileName);
- InString[i + 1] = '\0';
- } // if
- i--;
- } // while
- if (FileName == NULL)
- FileName = StrDuplicate(InString);
+ if (InString != NULL) {
+ i = StrLen(InString) - 1;
+ while ((i >= 0) && (!Found)) {
+ if (InString[i] == L')') {
+ Found = TRUE;
+ FileName = StrDuplicate(&InString[i + 1]);
+ CleanUpPathNameSlashes(FileName);
+ InString[i + 1] = '\0';
+ } // if
+ i--;
+ } // while
+ if (FileName == NULL)
+ FileName = StrDuplicate(InString);
+ } // if
return FileName;
} // static CHAR16* SplitDeviceString()
// called before running external programs to close open file handles
VOID UninitRefitLib(VOID)
{
+ // This piece of code was made to correspond to weirdness in ReinitRefitLib().
+ // See the comment on it there.
+ if(SelfRootDir == SelfVolume->RootDir)
+ SelfRootDir=0;
+
UninitVolumes();
if (SelfDir != NULL) {
return EFI_SUCCESS;
}
+//
+// EFI variable read and write functions
+//
+
+// From gummiboot: Retrieve a raw EFI variable.
+// Returns EFI status
+EFI_STATUS EfivarGetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size) {
+ CHAR8 *buf;
+ UINTN l;
+ EFI_STATUS err;
+
+ l = sizeof(CHAR16 *) * EFI_MAXIMUM_VARIABLE_SIZE;
+ buf = AllocatePool(l);
+ if (!buf)
+ return EFI_OUT_OF_RESOURCES;
+
+ err = refit_call5_wrapper(RT->GetVariable, name, vendor, NULL, &l, buf);
+ if (EFI_ERROR(err) == EFI_SUCCESS) {
+ *buffer = buf;
+ if (size)
+ *size = l;
+ } else
+ MyFreePool(buf);
+ return err;
+} // EFI_STATUS EfivarGetRaw()
+
+// From gummiboot: Set an EFI variable
+EFI_STATUS EfivarSetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent) {
+ UINT32 flags;
+
+ flags = EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS;
+ if (persistent)
+ flags |= EFI_VARIABLE_NON_VOLATILE;
+
+ return refit_call5_wrapper(RT->SetVariable, name, vendor, flags, size, buf);
+} // EFI_STATUS EfivarSetRaw()
+
//
// list functions
//
// volume functions
//
-static VOID ScanVolumeBootcode(IN OUT REFIT_VOLUME *Volume, OUT BOOLEAN *Bootable)
+// Return a pointer to a string containing a filesystem type name. If the
+// filesystem type is unknown, a blank (but non-null) string is returned.
+// The returned variable is a constant that should NOT be freed.
+static CHAR16 *FSTypeName(IN UINT32 TypeCode) {
+ CHAR16 *retval = NULL;
+
+ switch (TypeCode) {
+ case FS_TYPE_FAT:
+ retval = L" FAT";
+ break;
+ case FS_TYPE_HFSPLUS:
+ retval = L" HFS+";
+ break;
+ case FS_TYPE_EXT2:
+ retval = L" ext2";
+ break;
+ case FS_TYPE_EXT3:
+ retval = L" ext3";
+ break;
+ case FS_TYPE_EXT4:
+ retval = L" ext4";
+ break;
+ case FS_TYPE_REISERFS:
+ retval = L" ReiserFS";
+ break;
+ case FS_TYPE_BTRFS:
+ retval = L" Btrfs";
+ break;
+ case FS_TYPE_ISO9660:
+ retval = L" ISO-9660";
+ break;
+ default:
+ retval = L"";
+ break;
+ } // switch
+ return retval;
+} // CHAR16 *FSTypeName()
+
+// Identify the filesystem type and record the filesystem's UUID/serial number,
+// if possible. Expects a Buffer containing the first few (normally 4096) bytes
+// of the filesystem. Sets the filesystem type code in Volume->FSType and the
+// UUID/serial number in Volume->VolUuid. Note that the UUID value is recognized
+// differently for each filesystem, and is currently supported only for
+// ext2/3/4fs and ReiserFS. If the UUID can't be determined, it's set to 0. Also, the UUID
+// is just read directly into memory; it is *NOT* valid when displayed by
+// GuidAsString() or used in other GUID/UUID-manipulating functions. (As I
+// write, it's being used merely to detect partitions that are part of a
+// RAID 1 array.)
+static VOID SetFilesystemData(IN UINT8 *Buffer, IN UINTN BufferSize, IN OUT REFIT_VOLUME *Volume) {
+ UINT32 *Ext2Incompat, *Ext2Compat;
+ UINT16 *Magic16;
+ char *MagicString;
+
+ if ((Buffer != NULL) && (Volume != NULL)) {
+ SetMem(&(Volume->VolUuid), sizeof(EFI_GUID), 0);
+ Volume->FSType = FS_TYPE_UNKNOWN;
+
+ if (BufferSize >= 512) {
+ Magic16 = (UINT16*) (Buffer + 510);
+ if (*Magic16 == FAT_MAGIC) {
+ Volume->FSType = FS_TYPE_FAT;
+ return;
+ } // if
+ } // search for FAT magic
+
+ if (BufferSize >= (1024 + 100)) {
+ Magic16 = (UINT16*) (Buffer + 1024 + 56);
+ if (*Magic16 == EXT2_SUPER_MAGIC) { // ext2/3/4
+ Ext2Compat = (UINT32*) (Buffer + 1024 + 92);
+ Ext2Incompat = (UINT32*) (Buffer + 1024 + 96);
+ if ((*Ext2Incompat & 0x0040) || (*Ext2Incompat & 0x0200)) { // check for extents or flex_bg
+ Volume->FSType = FS_TYPE_EXT4;
+ } else if (*Ext2Compat & 0x0004) { // check for journal
+ Volume->FSType = FS_TYPE_EXT3;
+ } else { // none of these features; presume it's ext2...
+ Volume->FSType = FS_TYPE_EXT2;
+ }
+ CopyMem(&(Volume->VolUuid), Buffer + 1024 + 104, sizeof(EFI_GUID));
+ return;
+ }
+ } // search for ext2/3/4 magic
+
+ if (BufferSize >= (65536 + 100)) {
+ MagicString = (char*) (Buffer + 65536 + 52);
+ if ((CompareMem(MagicString, REISERFS_SUPER_MAGIC_STRING, 8) == 0) ||
+ (CompareMem(MagicString, REISER2FS_SUPER_MAGIC_STRING, 9) == 0) ||
+ (CompareMem(MagicString, REISER2FS_JR_SUPER_MAGIC_STRING, 9) == 0)) {
+ Volume->FSType = FS_TYPE_REISERFS;
+ CopyMem(&(Volume->VolUuid), Buffer + 65536 + 84, sizeof(EFI_GUID));
+ return;
+ } // if
+ } // search for ReiserFS magic
+
+ if (BufferSize >= (65536 + 64 + 8)) {
+ MagicString = (char*) (Buffer + 65536 + 64);
+ if (CompareMem(MagicString, BTRFS_SIGNATURE, 8) == 0) {
+ Volume->FSType = FS_TYPE_BTRFS;
+ return;
+ } // if
+ } // search for Btrfs magic
+
+ if (BufferSize >= (1024 + 2)) {
+ Magic16 = (UINT16*) (Buffer + 1024);
+ if ((*Magic16 == HFSPLUS_MAGIC1) || (*Magic16 == HFSPLUS_MAGIC2)) {
+ Volume->FSType = FS_TYPE_HFSPLUS;
+ return;
+ }
+ } // search for HFS+ magic
+ } // if (Buffer != NULL)
+
+} // UINT32 SetFilesystemData()
+
+static VOID ScanVolumeBootcode(REFIT_VOLUME *Volume, BOOLEAN *Bootable)
{
EFI_STATUS Status;
- UINT8 SectorBuffer[SECTOR_SIZE];
+ UINT8 Buffer[SAMPLE_SIZE];
UINTN i;
MBR_PARTITION_INFO *MbrTable;
- BOOLEAN MbrTableFound;
+ BOOLEAN MbrTableFound = FALSE;
Volume->HasBootCode = FALSE;
Volume->OSIconName = NULL;
if (Volume->BlockIO == NULL)
return;
- if (Volume->BlockIO->Media->BlockSize > SECTOR_SIZE)
+ if (Volume->BlockIO->Media->BlockSize > SAMPLE_SIZE)
return; // our buffer is too small...
// look at the boot sector (this is used for both hard disks and El Torito images!)
Status = refit_call5_wrapper(Volume->BlockIO->ReadBlocks,
Volume->BlockIO, Volume->BlockIO->Media->MediaId,
- Volume->BlockIOOffset, SECTOR_SIZE, SectorBuffer);
+ Volume->BlockIOOffset, SAMPLE_SIZE, Buffer);
if (!EFI_ERROR(Status)) {
- if (*((UINT16 *)(SectorBuffer + 510)) == 0xaa55 && SectorBuffer[0] != 0) {
+ SetFilesystemData(Buffer, SAMPLE_SIZE, Volume);
+ if ((*((UINT16 *)(Buffer + 510)) == 0xaa55 && Buffer[0] != 0) && (FindMem(Buffer, 512, "EXFAT", 5) == -1)) {
*Bootable = TRUE;
Volume->HasBootCode = TRUE;
}
// detect specific boot codes
- if (CompareMem(SectorBuffer + 2, "LILO", 4) == 0 ||
- CompareMem(SectorBuffer + 6, "LILO", 4) == 0 ||
- CompareMem(SectorBuffer + 3, "SYSLINUX", 8) == 0 ||
- FindMem(SectorBuffer, SECTOR_SIZE, "ISOLINUX", 8) >= 0) {
+ if (CompareMem(Buffer + 2, "LILO", 4) == 0 ||
+ CompareMem(Buffer + 6, "LILO", 4) == 0 ||
+ CompareMem(Buffer + 3, "SYSLINUX", 8) == 0 ||
+ FindMem(Buffer, SECTOR_SIZE, "ISOLINUX", 8) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"linux";
Volume->OSName = L"Linux";
- } else if (FindMem(SectorBuffer, 512, "Geom\0Hard Disk\0Read\0 Error", 26) >= 0) { // GRUB
+ } else if (FindMem(Buffer, 512, "Geom\0Hard Disk\0Read\0 Error", 26) >= 0) { // GRUB
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"grub,linux";
Volume->OSName = L"Linux";
// // Below doesn't produce a bootable entry, so commented out for the moment....
// // GRUB in BIOS boot partition:
-// } else if (FindMem(SectorBuffer, 512, "Geom\0Read\0 Error", 16) >= 0) {
+// } else if (FindMem(Buffer, 512, "Geom\0Read\0 Error", 16) >= 0) {
// Volume->HasBootCode = TRUE;
// Volume->OSIconName = L"grub,linux";
// Volume->OSName = L"Linux";
// Volume->VolName = L"BIOS Boot Partition";
// *Bootable = TRUE;
- } else if ((*((UINT32 *)(SectorBuffer + 502)) == 0 &&
- *((UINT32 *)(SectorBuffer + 506)) == 50000 &&
- *((UINT16 *)(SectorBuffer + 510)) == 0xaa55) ||
- FindMem(SectorBuffer, SECTOR_SIZE, "Starting the BTX loader", 23) >= 0) {
+ } else if ((*((UINT32 *)(Buffer + 502)) == 0 &&
+ *((UINT32 *)(Buffer + 506)) == 50000 &&
+ *((UINT16 *)(Buffer + 510)) == 0xaa55) ||
+ FindMem(Buffer, SECTOR_SIZE, "Starting the BTX loader", 23) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"freebsd";
Volume->OSName = L"FreeBSD";
- } else if (FindMem(SectorBuffer, 512, "!Loading", 8) >= 0 ||
- FindMem(SectorBuffer, SECTOR_SIZE, "/cdboot\0/CDBOOT\0", 16) >= 0) {
+ } else if (FindMem(Buffer, 512, "!Loading", 8) >= 0 ||
+ FindMem(Buffer, SECTOR_SIZE, "/cdboot\0/CDBOOT\0", 16) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"openbsd";
Volume->OSName = L"OpenBSD";
- } else if (FindMem(SectorBuffer, 512, "Not a bootxx image", 18) >= 0 ||
- *((UINT32 *)(SectorBuffer + 1028)) == 0x7886b6d1) {
+ } else if (FindMem(Buffer, 512, "Not a bootxx image", 18) >= 0 ||
+ *((UINT32 *)(Buffer + 1028)) == 0x7886b6d1) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"netbsd";
Volume->OSName = L"NetBSD";
- } else if (FindMem(SectorBuffer, SECTOR_SIZE, "NTLDR", 5) >= 0) {
+ } else if (FindMem(Buffer, SECTOR_SIZE, "NTLDR", 5) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"win";
Volume->OSName = L"Windows";
- } else if (FindMem(SectorBuffer, SECTOR_SIZE, "BOOTMGR", 7) >= 0) {
+ } else if (FindMem(Buffer, SECTOR_SIZE, "BOOTMGR", 7) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"winvista,win";
Volume->OSName = L"Windows";
- } else if (FindMem(SectorBuffer, 512, "CPUBOOT SYS", 11) >= 0 ||
- FindMem(SectorBuffer, 512, "KERNEL SYS", 11) >= 0) {
+ } else if (FindMem(Buffer, 512, "CPUBOOT SYS", 11) >= 0 ||
+ FindMem(Buffer, 512, "KERNEL SYS", 11) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"freedos";
Volume->OSName = L"FreeDOS";
- } else if (FindMem(SectorBuffer, 512, "OS2LDR", 6) >= 0 ||
- FindMem(SectorBuffer, 512, "OS2BOOT", 7) >= 0) {
+ } else if (FindMem(Buffer, 512, "OS2LDR", 6) >= 0 ||
+ FindMem(Buffer, 512, "OS2BOOT", 7) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"ecomstation";
Volume->OSName = L"eComStation";
- } else if (FindMem(SectorBuffer, 512, "Be Boot Loader", 14) >= 0) {
+ } else if (FindMem(Buffer, 512, "Be Boot Loader", 14) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"beos";
Volume->OSName = L"BeOS";
- } else if (FindMem(SectorBuffer, 512, "yT Boot Loader", 14) >= 0) {
+ } else if (FindMem(Buffer, 512, "yT Boot Loader", 14) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"zeta,beos";
Volume->OSName = L"ZETA";
- } else if (FindMem(SectorBuffer, 512, "\x04" "beos\x06" "system\x05" "zbeos", 18) >= 0 ||
- FindMem(SectorBuffer, 512, "\x06" "system\x0c" "haiku_loader", 20) >= 0) {
+ } else if (FindMem(Buffer, 512, "\x04" "beos\x06" "system\x05" "zbeos", 18) >= 0 ||
+ FindMem(Buffer, 512, "\x06" "system\x0c" "haiku_loader", 20) >= 0) {
Volume->HasBootCode = TRUE;
Volume->OSIconName = L"haiku,beos";
Volume->OSName = L"Haiku";
#endif
// dummy FAT boot sector (created by OS X's newfs_msdos)
- if (FindMem(SectorBuffer, 512, "Non-system disk", 15) >= 0)
+ if (FindMem(Buffer, 512, "Non-system disk", 15) >= 0)
Volume->HasBootCode = FALSE;
// dummy FAT boot sector (created by Linux's mkdosfs)
- if (FindMem(SectorBuffer, 512, "This is not a bootable disk", 27) >= 0)
+ if (FindMem(Buffer, 512, "This is not a bootable disk", 27) >= 0)
Volume->HasBootCode = FALSE;
// dummy FAT boot sector (created by Windows)
- if (FindMem(SectorBuffer, 512, "Press any key to restart", 24) >= 0)
+ if (FindMem(Buffer, 512, "Press any key to restart", 24) >= 0)
Volume->HasBootCode = FALSE;
// check for MBR partition table
- if (*((UINT16 *)(SectorBuffer + 510)) == 0xaa55) {
- MbrTableFound = FALSE;
- MbrTable = (MBR_PARTITION_INFO *)(SectorBuffer + 446);
+ if (*((UINT16 *)(Buffer + 510)) == 0xaa55) {
+ MbrTable = (MBR_PARTITION_INFO *)(Buffer + 446);
for (i = 0; i < 4; i++)
if (MbrTable[i].StartLBA && MbrTable[i].Size)
MbrTableFound = TRUE;
CheckError(Status, L"while reading boot sector");
#endif
}
-}
+} /* VOID ScanVolumeBootcode() */
-// default volume badge icon based on disk kind
-static VOID ScanVolumeDefaultIcon(IN OUT REFIT_VOLUME *Volume)
+// Set default volume badge icon based on /.VolumeBadge.{icns|png} file or disk kind
+VOID SetVolumeBadgeIcon(REFIT_VOLUME *Volume)
{
- switch (Volume->DiskKind) {
- case DISK_KIND_INTERNAL:
- Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_INTERNAL);
- break;
- case DISK_KIND_EXTERNAL:
- Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_EXTERNAL);
- break;
- case DISK_KIND_OPTICAL:
- Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_OPTICAL);
- break;
- } // switch()
-}
+ if (Volume->VolBadgeImage == NULL) {
+ Volume->VolBadgeImage = egLoadIconAnyType(Volume->RootDir, L"", L".VolumeBadge", GlobalConfig.IconSizes[ICON_SIZE_BADGE]);
+ }
+
+ if (Volume->VolBadgeImage == NULL) {
+ switch (Volume->DiskKind) {
+ case DISK_KIND_INTERNAL:
+ Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_INTERNAL);
+ break;
+ case DISK_KIND_EXTERNAL:
+ Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_EXTERNAL);
+ break;
+ case DISK_KIND_OPTICAL:
+ Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_OPTICAL);
+ break;
+ case DISK_KIND_NET:
+ Volume->VolBadgeImage = BuiltinIcon(BUILTIN_ICON_VOL_NET);
+ break;
+ } // switch()
+ }
+} // VOID SetVolumeBadgeIcon()
+
+// Return a string representing the input size in IEEE-1541 units.
+// The calling function is responsible for freeing the allocated memory.
+static CHAR16 *SizeInIEEEUnits(UINT64 SizeInBytes) {
+ UINT64 SizeInIeee;
+ UINTN Index = 0, NumPrefixes;
+ CHAR16 *Units, *Prefixes = L" KMGTPEZ";
+ CHAR16 *TheValue;
+
+ TheValue = AllocateZeroPool(sizeof(CHAR16) * 256);
+ if (TheValue != NULL) {
+ NumPrefixes = StrLen(Prefixes);
+ SizeInIeee = SizeInBytes;
+ while ((SizeInIeee > 1024) && (Index < (NumPrefixes - 1))) {
+ Index++;
+ SizeInIeee /= 1024;
+ } // while
+ if (Prefixes[Index] == ' ') {
+ Units = StrDuplicate(L"-byte");
+ } else {
+ Units = StrDuplicate(L" iB");
+ Units[1] = Prefixes[Index];
+ } // if/else
+ SPrint(TheValue, 255, L"%ld%s", SizeInIeee, Units);
+ } // if
+ return TheValue;
+} // CHAR16 *SizeInIEEEUnits()
+
+// Return a name for the volume. Ideally this should be the label for the
+// filesystem it contains, but this function falls back to describing the
+// filesystem by size (200 MiB, etc.) and/or type (ext2, HFS+, etc.), if
+// this information can be extracted.
+// The calling function is responsible for freeing the memory allocated
+// for the name string.
+static CHAR16 *GetVolumeName(REFIT_VOLUME *Volume) {
+ EFI_FILE_SYSTEM_INFO *FileSystemInfoPtr = NULL;
+ CHAR16 *FoundName = NULL;
+ CHAR16 *SISize, *TypeName;
+
+ if (Volume->RootDir != NULL) {
+ FileSystemInfoPtr = LibFileSystemInfo(Volume->RootDir);
+ }
+
+ if ((FileSystemInfoPtr != NULL) && (FileSystemInfoPtr->VolumeLabel != NULL) &&
+ (StrLen(FileSystemInfoPtr->VolumeLabel) > 0)) {
+ FoundName = StrDuplicate(FileSystemInfoPtr->VolumeLabel);
+ }
-VOID ScanVolume(IN OUT REFIT_VOLUME *Volume)
+ // Special case: Old versions of the rEFInd HFS+ driver always returns label of "HFS+ volume", so wipe
+ // this so that we can build a new name that includes the size....
+ if ((FoundName != NULL) && (StrCmp(FoundName, L"HFS+ volume") == 0) && (Volume->FSType == FS_TYPE_HFSPLUS)) {
+ MyFreePool(FoundName);
+ FoundName = NULL;
+ } // if rEFInd HFS+ driver suspected
+
+ // If no filesystem name, try to use the partition name....
+ if ((FoundName == NULL) && (Volume->PartName != NULL) && (StrLen(Volume->PartName) > 0) &&
+ !IsIn(Volume->PartName, IGNORE_PARTITION_NAMES)) {
+ FoundName = StrDuplicate(Volume->PartName);
+ } // if use partition name
+
+ // No filesystem or acceptable partition name, so use fs type and size
+ if ((FoundName == NULL) && (FileSystemInfoPtr != NULL)) {
+ FoundName = AllocateZeroPool(sizeof(CHAR16) * 256);
+ if (FoundName != NULL) {
+ SISize = SizeInIEEEUnits(FileSystemInfoPtr->VolumeSize);
+ SPrint(FoundName, 255, L"%s%s volume", SISize, FSTypeName(Volume->FSType));
+ MyFreePool(SISize);
+ } // if allocated memory OK
+ } // if (FoundName == NULL)
+
+ MyFreePool(FileSystemInfoPtr);
+
+ if (FoundName == NULL) {
+ FoundName = AllocateZeroPool(sizeof(CHAR16) * 256);
+ if (FoundName != NULL) {
+ TypeName = FSTypeName(Volume->FSType); // NOTE: Don't free TypeName; function returns constant
+ if (StrLen(TypeName) > 0)
+ SPrint(FoundName, 255, L"%s volume", TypeName);
+ else
+ SPrint(FoundName, 255, L"unknown volume");
+ } // if allocated memory OK
+ } // if
+
+ // TODO: Above could be improved/extended, in case filesystem name is not found,
+ // such as:
+ // - use or add disk/partition number (e.g., "(hd0,2)")
+
+ // Desperate fallback name....
+ if (FoundName == NULL) {
+ FoundName = StrDuplicate(L"unknown volume");
+ }
+ return FoundName;
+} // static CHAR16 *GetVolumeName()
+
+// Determine the unique GUID of the volume and store it.
+static VOID SetPartGuidAndName(REFIT_VOLUME *Volume, EFI_DEVICE_PATH_PROTOCOL *DevicePath) {
+ HARDDRIVE_DEVICE_PATH *HdDevicePath;
+
+ if (Volume == NULL)
+ return;
+
+ if ((DevicePath->Type == MEDIA_DEVICE_PATH) && (DevicePath->SubType == MEDIA_HARDDRIVE_DP)) {
+ HdDevicePath = (HARDDRIVE_DEVICE_PATH*) DevicePath;
+ if (HdDevicePath->SignatureType == SIGNATURE_TYPE_GUID) {
+ Volume->PartGuid = *((EFI_GUID*) HdDevicePath->Signature);
+ Volume->PartName = PartNameFromGuid(&(Volume->PartGuid));
+ } // if
+ } // if
+} // VOID SetPartGuid()
+
+VOID ScanVolume(REFIT_VOLUME *Volume)
{
EFI_STATUS Status;
EFI_DEVICE_PATH *DevicePath, *NextDevicePath;
EFI_DEVICE_PATH *DiskDevicePath, *RemainingDevicePath;
EFI_HANDLE WholeDiskHandle;
UINTN PartialLength;
- EFI_FILE_SYSTEM_INFO *FileSystemInfoPtr;
BOOLEAN Bootable;
// get device path
while (DevicePath != NULL && !IsDevicePathEndType(DevicePath)) {
NextDevicePath = NextDevicePathNode(DevicePath);
+ if (DevicePathType(DevicePath) == MEDIA_DEVICE_PATH) {
+ SetPartGuidAndName(Volume, DevicePath);
+ }
if (DevicePathType(DevicePath) == MESSAGING_DEVICE_PATH &&
(DevicePathSubType(DevicePath) == MSG_USB_DP ||
DevicePathSubType(DevicePath) == MSG_USB_CLASS_DP ||
}
// look at the BlockIO protocol
- Status = refit_call3_wrapper(BS->HandleProtocol, WholeDiskHandle, &BlockIoProtocol, (VOID **) &Volume->WholeDiskBlockIO);
+ Status = refit_call3_wrapper(BS->HandleProtocol, WholeDiskHandle, &BlockIoProtocol,
+ (VOID **) &Volume->WholeDiskBlockIO);
if (!EFI_ERROR(Status)) {
// check the media block size
Volume->HasBootCode = FALSE;
}
- // default volume icon based on disk kind
- ScanVolumeDefaultIcon(Volume);
-
// open the root directory of the volume
Volume->RootDir = LibOpenRoot(Volume->DeviceHandle);
+
+ // Set volume icon based on .VolumeBadge icon or disk kind
+ SetVolumeBadgeIcon(Volume);
+
+ Volume->VolName = GetVolumeName(Volume);
+
if (Volume->RootDir == NULL) {
Volume->IsReadable = FALSE;
return;
Volume->IsReadable = TRUE;
}
- // get volume name
- FileSystemInfoPtr = LibFileSystemInfo(Volume->RootDir);
- if (FileSystemInfoPtr != NULL) {
- Volume->VolName = StrDuplicate(FileSystemInfoPtr->VolumeLabel);
- FreePool(FileSystemInfoPtr);
- }
-
- if (Volume->VolName == NULL) {
- Volume->VolName = StrDuplicate(L"Unknown");
- }
- // TODO: if no official volume name is found or it is empty, use something else, e.g.:
- // - name from bytes 3 to 10 of the boot sector
- // - partition number
- // - name derived from file system type or partition type
-
- // get custom volume icon if present
- if (FileExists(Volume->RootDir, VOLUME_BADGE_NAME))
- Volume->VolBadgeImage = LoadIcns(Volume->RootDir, VOLUME_BADGE_NAME, 32);
- if (FileExists(Volume->RootDir, VOLUME_ICON_NAME)) {
- Volume->VolIconImage = LoadIcns(Volume->RootDir, VOLUME_ICON_NAME, 128);
- }
+ // get custom volume icons if present
+ if (!Volume->VolIconImage)
+ Volume->VolIconImage = egLoadIconAnyType(Volume->RootDir, L"", L".VolumeIcon", GlobalConfig.IconSizes[ICON_SIZE_BIG]);
} // ScanVolume()
static VOID ScanExtendedPartition(REFIT_VOLUME *WholeDiskVolume, MBR_PARTITION_INFO *MbrEntry)
if (!Bootable)
Volume->HasBootCode = FALSE;
- ScanVolumeDefaultIcon(Volume);
+ SetVolumeBadgeIcon(Volume);
AddListElement((VOID ***) &Volumes, &VolumesCount, Volume);
}
}
}
-}
+} /* VOID ScanExtendedPartition() */
VOID ScanVolumes(VOID)
{
EFI_STATUS Status;
- UINTN HandleCount = 0;
- UINTN HandleIndex;
EFI_HANDLE *Handles;
REFIT_VOLUME *Volume, *WholeDiskVolume;
- UINTN VolumeIndex, VolumeIndex2;
MBR_PARTITION_INFO *MbrTable;
+ UINTN HandleCount = 0;
+ UINTN HandleIndex;
+ UINTN VolumeIndex, VolumeIndex2;
UINTN PartitionIndex;
+ UINTN SectorSum, i, VolNumber = 0;
UINT8 *SectorBuffer1, *SectorBuffer2;
- UINTN SectorSum, i;
+ EFI_GUID *UuidList;
+ EFI_GUID NullUuid = NULL_GUID_VALUE;
MyFreePool(Volumes);
Volumes = NULL;
VolumesCount = 0;
+ ForgetPartitionTables();
// get all filesystem handles
Status = LibLocateHandle(ByProtocol, &BlockIoProtocol, NULL, &HandleCount, &Handles);
- // was: &FileSystemProtocol
+ UuidList = AllocateZeroPool(sizeof(EFI_GUID) * HandleCount);
if (Status == EFI_NOT_FOUND) {
return; // no filesystems. strange, but true...
}
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
Volume = AllocateZeroPool(sizeof(REFIT_VOLUME));
Volume->DeviceHandle = Handles[HandleIndex];
+ AddPartitionTable(Volume);
ScanVolume(Volume);
+ if (UuidList) {
+ UuidList[HandleIndex] = Volume->VolUuid;
+ for (i = 0; i < HandleIndex; i++) {
+ if ((CompareMem(&(Volume->VolUuid), &(UuidList[i]), sizeof(EFI_GUID)) == 0) &&
+ (CompareMem(&(Volume->VolUuid), &NullUuid, sizeof(EFI_GUID)) != 0)) { // Duplicate filesystem UUID
+ Volume->IsReadable = FALSE;
+ } // if
+ } // for
+ } // if
+ if (Volume->IsReadable)
+ Volume->VolNumber = VolNumber++;
+ else
+ Volume->VolNumber = VOL_UNREADABLE;
AddListElement((VOID ***) &Volumes, &VolumesCount, Volume);
Volume->BlockIO != Volume->WholeDiskBlockIO) {
for (VolumeIndex2 = 0; VolumeIndex2 < VolumesCount; VolumeIndex2++) {
if (Volumes[VolumeIndex2]->BlockIO == Volume->WholeDiskBlockIO &&
- Volumes[VolumeIndex2]->BlockIOOffset == 0)
+ Volumes[VolumeIndex2]->BlockIOOffset == 0) {
WholeDiskVolume = Volumes[VolumeIndex2];
+ }
}
}
MyFreePool(SectorBuffer1);
MyFreePool(SectorBuffer2);
}
-
- }
+ } // for
} /* VOID ScanVolumes() */
static VOID UninitVolumes(VOID)
if (!EFI_ERROR(Status)) {
// get the BlockIO protocol
- Status = refit_call3_wrapper(BS->HandleProtocol, WholeDiskHandle, &BlockIoProtocol, (VOID **) &Volume->WholeDiskBlockIO);
+ Status = refit_call3_wrapper(BS->HandleProtocol, WholeDiskHandle, &BlockIoProtocol,
+ (VOID **) &Volume->WholeDiskBlockIO);
if (EFI_ERROR(Status)) {
Volume->WholeDiskBlockIO = NULL;
CheckError(Status, L"from HandleProtocol");
LastBufferSize = BufferSize;
}
if (EFI_ERROR(Status)) {
- FreePool(Buffer);
+ MyFreePool(Buffer);
+ Buffer = NULL;
break;
}
// check for end of listing
if (BufferSize == 0) { // end of directory listing
- FreePool(Buffer);
+ MyFreePool(Buffer);
+ Buffer = NULL;
break;
}
// else continue loop
} else
break;
- } while (KeepGoing);
+ } while (KeepGoing && FilePattern);
*DirEntry = DirIter->LastFileInfo;
return TRUE;
return FileName;
}
-// Replaces a filename extension of ".efi" with the specified string
-// (Extension). If the input Path doesn't end in ".efi", Extension
-// is added to the existing filename.
-VOID ReplaceEfiExtension(IN OUT CHAR16 *Path, IN CHAR16 *Extension)
-{
- UINTN PathLen;
-
- PathLen = StrLen(Path);
- // Note: Do StriCmp() twice to work around Gigabyte Hybrid EFI case-sensitivity bug....
- if ((PathLen >= 4) && ((StriCmp(&Path[PathLen - 4], L".efi") == 0) || (StriCmp(&Path[PathLen - 4], L".EFI") == 0))) {
- Path[PathLen - 4] = 0;
- } // if
- StrCat(Path, Extension);
-} // VOID ReplaceEfiExtension()
+// Remove the .efi extension from FileName -- for instance, if FileName is
+// "fred.efi", returns "fred". If the filename contains no .efi extension,
+// returns a copy of the original input.
+CHAR16 * StripEfiExtension(CHAR16 *FileName) {
+ UINTN Length;
+ CHAR16 *Copy = NULL;
+
+ if ((FileName != NULL) && ((Copy = StrDuplicate(FileName)) != NULL)) {
+ Length = StrLen(Copy);
+ // Note: Do StriCmp() twice to work around Gigabyte Hybrid EFI case-sensitivity bug....
+ if ((Length >= 4) && ((StriCmp(&Copy[Length - 4], L".efi") == 0) || (StriCmp(&Copy[Length - 4], L".EFI") == 0))) {
+ Copy[Length - 4] = 0;
+ } // if
+ } // if
+ return Copy;
+} // CHAR16 * StripExtension()
//
// memory string search
// Merges two strings, creating a new one and returning a pointer to it.
// If AddChar != 0, the specified character is placed between the two original
-// strings (unless the first string is NULL). The original input string
-// *First is de-allocated and replaced by the new merged string.
+// strings (unless the first string is NULL or empty). The original input
+// string *First is de-allocated and replaced by the new merged string.
// This is similar to StrCat, but safer and more flexible because
// MergeStrings allocates memory that's the correct size for the
// new merged string, so it can take a NULL *First and it cleans
Length2 = StrLen(Second);
NewString = AllocatePool(sizeof(CHAR16) * (Length1 + Length2 + 2));
if (NewString != NULL) {
+ if ((*First != NULL) && (StrLen(*First) == 0)) {
+ MyFreePool(*First);
+ *First = NULL;
+ }
NewString[0] = L'\0';
if (*First != NULL) {
StrCat(NewString, *First);
CHAR16 *FindExtension(IN CHAR16 *Path) {
CHAR16 *Extension;
BOOLEAN Found = FALSE, FoundSlash = FALSE;
- UINTN i;
+ INTN i;
Extension = AllocateZeroPool(sizeof(CHAR16));
if (Path) {
UINTN i, StartOfElement = 0, EndOfElement = 0, PathLength, CopyLength;
CHAR16 *Found = NULL;
+ if (Path == NULL)
+ return NULL;
+
PathLength = StrLen(Path);
// Find start & end of target element
for (i = 0; i < PathLength; i++) {
// freeing the returned string's memory.
CHAR16 *FindPath(IN CHAR16* FullPath) {
UINTN i, LastBackslash = 0;
- CHAR16 *PathOnly;
+ CHAR16 *PathOnly = NULL;
- for (i = 0; i < StrLen(FullPath); i++) {
- if (FullPath[i] == '\\')
- LastBackslash = i;
- } // for
- PathOnly = StrDuplicate(FullPath);
- PathOnly[LastBackslash] = 0;
+ if (FullPath != NULL) {
+ for (i = 0; i < StrLen(FullPath); i++) {
+ if (FullPath[i] == '\\')
+ LastBackslash = i;
+ } // for
+ PathOnly = StrDuplicate(FullPath);
+ if (PathOnly != NULL)
+ PathOnly[LastBackslash] = 0;
+ } // if
return (PathOnly);
}
+/*++
+ *
+ * Routine Description:
+ *
+ * Find a substring.
+ *
+ * Arguments:
+ *
+ * String - Null-terminated string to search.
+ * StrCharSet - Null-terminated string to search for.
+ *
+ * Returns:
+ * The address of the first occurrence of the matching substring if successful, or NULL otherwise.
+ * --*/
+CHAR16* MyStrStr (CHAR16 *String, CHAR16 *StrCharSet)
+{
+ CHAR16 *Src;
+ CHAR16 *Sub;
+
+ if ((String == NULL) || (StrCharSet == NULL))
+ return NULL;
+
+ Src = String;
+ Sub = StrCharSet;
+
+ while ((*String != L'\0') && (*StrCharSet != L'\0')) {
+ if (*String++ != *StrCharSet) {
+ String = ++Src;
+ StrCharSet = Sub;
+ } else {
+ StrCharSet++;
+ }
+ }
+ if (*StrCharSet == L'\0') {
+ return Src;
+ } else {
+ return NULL;
+ }
+} // CHAR16 *MyStrStr()
+
+// Restrict TheString to at most Limit characters.
+// Does this in two ways:
+// - Locates stretches of two or more spaces and compresses
+// them down to one space.
+// - Truncates TheString
+// Returns TRUE if changes were made, FALSE otherwise
+BOOLEAN LimitStringLength(CHAR16 *TheString, UINTN Limit) {
+ CHAR16 *SubString, *TempString;
+ UINTN i;
+ BOOLEAN HasChanged = FALSE;
+
+ // SubString will be NULL or point WITHIN TheString
+ SubString = MyStrStr(TheString, L" ");
+ while (SubString != NULL) {
+ i = 0;
+ while (SubString[i] == L' ')
+ i++;
+ if (i >= StrLen(SubString)) {
+ SubString[0] = '\0';
+ HasChanged = TRUE;
+ } else {
+ TempString = StrDuplicate(&SubString[i]);
+ if (TempString != NULL) {
+ StrCpy(&SubString[1], TempString);
+ MyFreePool(TempString);
+ HasChanged = TRUE;
+ } else {
+ // memory allocation problem; abort to avoid potentially infinite loop!
+ break;
+ } // if/else
+ } // if/else
+ SubString = MyStrStr(TheString, L" ");
+ } // while
+
+ // If the string is still too long, truncate it....
+ if (StrLen(TheString) > Limit) {
+ TheString[Limit] = '\0';
+ HasChanged = TRUE;
+ } // if
+
+ return HasChanged;
+} // BOOLEAN LimitStringLength()
+
// Takes an input loadpath, splits it into disk and filename components, finds a matching
// DeviceVolume, and returns that and the filename (*loader).
VOID FindVolumeAndFilename(IN EFI_DEVICE_PATH *loadpath, OUT REFIT_VOLUME **DeviceVolume, OUT CHAR16 **loader) {
MyFreePool(DeviceString);
} // VOID FindVolumeAndFilename()
+// Splits a volume/filename string (e.g., "fs0:\EFI\BOOT") into separate
+// volume and filename components (e.g., "fs0" and "\EFI\BOOT"), returning
+// the filename component in the original *Path variable and the split-off
+// volume component in the *VolName variable.
+// Returns TRUE if both components are found, FALSE otherwise.
+BOOLEAN SplitVolumeAndFilename(IN OUT CHAR16 **Path, OUT CHAR16 **VolName) {
+ UINTN i = 0, Length;
+ CHAR16 *Filename;
+
+ if (*Path == NULL)
+ return FALSE;
+
+ if (*VolName != NULL) {
+ MyFreePool(*VolName);
+ *VolName = NULL;
+ }
+
+ Length = StrLen(*Path);
+ while ((i < Length) && ((*Path)[i] != L':')) {
+ i++;
+ } // while
+
+ if (i < Length) {
+ Filename = StrDuplicate((*Path) + i + 1);
+ (*Path)[i] = 0;
+ *VolName = *Path;
+ *Path = Filename;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+} // BOOLEAN SplitVolumeAndFilename()
+
// Returns all the digits in the input string, including intervening
// non-digit characters. For instance, if InString is "foo-3.3.4-7.img",
// this function returns "3.3.4-7". If InString contains no digits,
UINTN i, StartOfElement, EndOfElement = 0, InLength, CopyLength;
CHAR16 *Found = NULL;
+ if (InString == NULL)
+ return NULL;
+
InLength = StartOfElement = StrLen(InString);
// Find start & end of target element
for (i = 0; i < InLength; i++) {
return (FoundString);
} // CHAR16 *FindCommaDelimited()
+// Return the position of SmallString within BigString, or -1 if
+// not found.
+INTN FindSubString(IN CHAR16 *SmallString, IN CHAR16 *BigString) {
+ INTN Position = -1;
+ UINTN i = 0, SmallSize, BigSize;
+ BOOLEAN Found = FALSE;
+
+ if ((SmallString == NULL) || (BigString == NULL))
+ return -1;
+
+ SmallSize = StrLen(SmallString);
+ BigSize = StrLen(BigString);
+ if ((SmallSize > BigSize) || (SmallSize == 0) || (BigSize == 0))
+ return -1;
+
+ while ((i <= (BigSize - SmallSize) && !Found)) {
+ if (CompareMem(BigString + i, SmallString, SmallSize) == 0) {
+ Found = TRUE;
+ Position = i;
+ } // if
+ i++;
+ } // while()
+ return Position;
+} // INTN FindSubString()
+
+// Take an input path name, which may include a volume specification and/or
+// a path, and return separate volume, path, and file names. For instance,
+// "BIGVOL:\EFI\ubuntu\grubx64.efi" will return a VolName of "BIGVOL", a Path
+// of "EFI\ubuntu", and a Filename of "grubx64.efi". If an element is missing,
+// the returned pointer is NULL. The calling function is responsible for
+// freeing the allocated memory.
+VOID SplitPathName(CHAR16 *InPath, CHAR16 **VolName, CHAR16 **Path, CHAR16 **Filename) {
+ CHAR16 *Temp = NULL;
+
+ MyFreePool(*VolName);
+ MyFreePool(*Path);
+ MyFreePool(*Filename);
+ *VolName = *Path = *Filename = NULL;
+ Temp = StrDuplicate(InPath);
+ SplitVolumeAndFilename(&Temp, VolName); // VolName is NULL or has volume; Temp has rest of path
+ CleanUpPathNameSlashes(Temp);
+ *Path = FindPath(Temp); // *Path has path (may be 0-length); Temp unchanged.
+ *Filename = StrDuplicate(Temp + StrLen(*Path));
+ CleanUpPathNameSlashes(*Filename);
+ if (StrLen(*Path) == 0) {
+ MyFreePool(*Path);
+ *Path = NULL;
+ }
+ if (StrLen(*Filename) == 0) {
+ MyFreePool(*Filename);
+ *Filename = NULL;
+ }
+ MyFreePool(Temp);
+} // VOID SplitPathName
+
// Returns TRUE if SmallString is an element in the comma-delimited List,
// FALSE otherwise. Performs comparison case-insensitively (except on
// buggy EFIs with case-sensitive StriCmp() functions).
return Found;
} // BOOLEAN IsIn()
+// Returns TRUE if any element of List can be found as a substring of
+// BigString, FALSE otherwise. Performs comparisons case-insensitively.
+BOOLEAN IsInSubstring(IN CHAR16 *BigString, IN CHAR16 *List) {
+ UINTN i = 0, ElementLength;
+ BOOLEAN Found = FALSE;
+ CHAR16 *OneElement;
+
+ if (BigString && List) {
+ while (!Found && (OneElement = FindCommaDelimited(List, i++))) {
+ ElementLength = StrLen(OneElement);
+ if ((ElementLength <= StrLen(BigString)) && (StriSubCmp(OneElement, BigString)))
+ Found = TRUE;
+ } // while
+ } // if
+ return Found;
+} // BOOLEAN IsSubstringIn()
+
+// Returns TRUE if specified Volume, Directory, and Filename correspond to an
+// element in the comma-delimited List, FALSE otherwise. Note that Directory and
+// Filename must *NOT* include a volume or path specification (that's part of
+// the Volume variable), but the List elements may. Performs comparison
+// case-insensitively (except on buggy EFIs with case-sensitive StriCmp()
+// functions).
+BOOLEAN FilenameIn(REFIT_VOLUME *Volume, CHAR16 *Directory, CHAR16 *Filename, CHAR16 *List) {
+ UINTN i = 0;
+ BOOLEAN Found = FALSE;
+ CHAR16 *OneElement;
+ CHAR16 *TargetVolName = NULL, *TargetPath = NULL, *TargetFilename = NULL;
+
+ if (Filename && List) {
+ while (!Found && (OneElement = FindCommaDelimited(List, i++))) {
+ Found = TRUE;
+ SplitPathName(OneElement, &TargetVolName, &TargetPath, &TargetFilename);
+ VolumeNumberToName(Volume, &TargetVolName);
+ if (((TargetVolName != NULL) && ((Volume == NULL) || (StriCmp(TargetVolName, Volume->VolName) != 0))) ||
+ ((TargetPath != NULL) && (StriCmp(TargetPath, Directory) != 0)) ||
+ ((TargetFilename != NULL) && (StriCmp(TargetFilename, Filename) != 0))) {
+ Found = FALSE;
+ } // if
+ MyFreePool(OneElement);
+ } // while
+ } // if
+
+ MyFreePool(TargetVolName);
+ MyFreePool(TargetPath);
+ MyFreePool(TargetFilename);
+ return Found;
+} // BOOLEAN FilenameIn()
+
+// If *VolName is of the form "fs#", where "#" is a number, and if Volume points
+// to this volume number, returns with *VolName changed to the volume name, as
+// stored in the Volume data structure.
+// Returns TRUE if this substitution was made, FALSE otherwise.
+BOOLEAN VolumeNumberToName(REFIT_VOLUME *Volume, CHAR16 **VolName) {
+ BOOLEAN MadeSubstitution = FALSE;
+ UINTN VolNum;
+
+ if ((VolName == NULL) || (*VolName == NULL))
+ return FALSE;
+
+ if ((StrLen(*VolName) > 2) && (*VolName[0] == L'f') && (*VolName[1] == L's') && (*VolName[2] >= L'0') && (*VolName[2] <= L'9')) {
+ VolNum = Atoi(*VolName + 2);
+ if (VolNum == Volume->VolNumber) {
+ MyFreePool(*VolName);
+ *VolName = StrDuplicate(Volume->VolName);
+ MadeSubstitution = TRUE;
+ } // if
+ } // if
+ return MadeSubstitution;
+} // BOOLEAN VolumeMatchesNumber()
+
// Implement FreePool the way it should have been done to begin with, so that
// it doesn't throw an ASSERT message if fed a NULL pointer....
-VOID MyFreePool(IN OUT VOID *Pointer) {
+VOID MyFreePool(IN VOID *Pointer) {
if (Pointer != NULL)
FreePool(Pointer);
}
return (Ejected > 0);
} // VOID EjectMedia()
+// Converts consecutive characters in the input string into a
+// number, interpreting the string as a hexadecimal number, starting
+// at the specified position and continuing for the specified number
+// of characters or until the end of the string, whichever is first.
+// NumChars must be between 1 and 16. Ignores invalid characters.
+UINT64 StrToHex(CHAR16 *Input, UINTN Pos, UINTN NumChars) {
+ UINT64 retval = 0x00;
+ UINTN NumDone = 0;
+ CHAR16 a;
+
+ if ((Input == NULL) || (StrLen(Input) < Pos) || (NumChars == 0) || (NumChars > 16)) {
+ return 0;
+ }
+
+ while ((StrLen(Input) >= Pos) && (NumDone < NumChars)) {
+ a = Input[Pos];
+ if ((a >= '0') && (a <= '9')) {
+ retval *= 0x10;
+ retval += (a - '0');
+ NumDone++;
+ }
+ if ((a >= 'a') && (a <= 'f')) {
+ retval *= 0x10;
+ retval += (a - 'a' + 0x0a);
+ NumDone++;
+ }
+ if ((a >= 'A') && (a <= 'F')) {
+ retval *= 0x10;
+ retval += (a - 'A' + 0x0a);
+ NumDone++;
+ }
+ Pos++;
+ } // while()
+ return retval;
+} // StrToHex()
+
+// Returns TRUE if UnknownString can be interpreted as a GUID, FALSE otherwise.
+// Note that the input string must have no extraneous spaces and must be
+// conventionally formatted as a 36-character GUID, complete with dashes in
+// appropriate places.
+BOOLEAN IsGuid(CHAR16 *UnknownString) {
+ UINTN Length, i;
+ BOOLEAN retval = TRUE;
+ CHAR16 a;
+
+ if (UnknownString == NULL)
+ return FALSE;
+
+ Length = StrLen(UnknownString);
+ if (Length != 36)
+ return FALSE;
+
+ for (i = 0; i < Length; i++) {
+ a = UnknownString[i];
+ if ((i == 8) || (i == 13) || (i == 18) || (i == 23)) {
+ if (a != '-')
+ retval = FALSE;
+ } else if (((a < 'a') || (a > 'f')) && ((a < 'A') || (a > 'F')) && ((a < '0') && (a > '9'))) {
+ retval = FALSE;
+ } // if/else if
+ } // for
+ return retval;
+} // BOOLEAN IsGuid()
+
+// Return the GUID as a string, suitable for display to the user. Note that the calling
+// function is responsible for freeing the allocated memory.
+CHAR16 * GuidAsString(EFI_GUID *GuidData) {
+ CHAR16 *TheString;
+
+ TheString = AllocateZeroPool(42 * sizeof(CHAR16));
+ if (TheString != 0) {
+ SPrint (TheString, 82, L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ (UINTN)GuidData->Data1, (UINTN)GuidData->Data2, (UINTN)GuidData->Data3,
+ (UINTN)GuidData->Data4[0], (UINTN)GuidData->Data4[1], (UINTN)GuidData->Data4[2],
+ (UINTN)GuidData->Data4[3], (UINTN)GuidData->Data4[4], (UINTN)GuidData->Data4[5],
+ (UINTN)GuidData->Data4[6], (UINTN)GuidData->Data4[7]);
+ }
+ return TheString;
+} // GuidAsString(EFI_GUID *GuidData)
+
+EFI_GUID StringAsGuid(CHAR16 * InString) {
+ EFI_GUID Guid = NULL_GUID_VALUE;
+
+ if (!IsGuid(InString)) {
+ return Guid;
+ }
+
+ Guid.Data1 = (UINT32) StrToHex(InString, 0, 8);
+ Guid.Data2 = (UINT16) StrToHex(InString, 9, 4);
+ Guid.Data3 = (UINT16) StrToHex(InString, 14, 4);
+ Guid.Data4[0] = (UINT8) StrToHex(InString, 19, 2);
+ Guid.Data4[1] = (UINT8) StrToHex(InString, 21, 2);
+ Guid.Data4[2] = (UINT8) StrToHex(InString, 23, 2);
+ Guid.Data4[3] = (UINT8) StrToHex(InString, 26, 2);
+ Guid.Data4[4] = (UINT8) StrToHex(InString, 28, 2);
+ Guid.Data4[5] = (UINT8) StrToHex(InString, 30, 2);
+ Guid.Data4[6] = (UINT8) StrToHex(InString, 32, 2);
+ Guid.Data4[7] = (UINT8) StrToHex(InString, 34, 2);
+
+ return Guid;
+} // EFI_GUID StringAsGuid()
+
+// Returns TRUE if the two GUIDs are equal, FALSE otherwise
+BOOLEAN GuidsAreEqual(EFI_GUID *Guid1, EFI_GUID *Guid2) {
+ return (CompareMem(Guid1, Guid2, 16) == 0);
+} // BOOLEAN CompareGuids()
-// // Return the GUID as a string, suitable for display to the user. Note that the calling
-// // function is responsible for freeing the allocated memory.
-// CHAR16 * GuidAsString(EFI_GUID *GuidData) {
-// CHAR16 *TheString;
-//
-// TheString = AllocateZeroPool(42 * sizeof(CHAR16));
-// if (TheString != 0) {
-// SPrint (TheString, 82, L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
-// (UINTN)GuidData->Data1, (UINTN)GuidData->Data2, (UINTN)GuidData->Data3,
-// (UINTN)GuidData->Data4[0], (UINTN)GuidData->Data4[1], (UINTN)GuidData->Data4[2],
-// (UINTN)GuidData->Data4[3], (UINTN)GuidData->Data4[4], (UINTN)GuidData->Data4[5],
-// (UINTN)GuidData->Data4[6], (UINTN)GuidData->Data4[7]);
-// }
-// return TheString;
-// } // GuidAsString(EFI_GUID *GuidData)