/*
- * refit/config.c
+ * refind/config.c
* Configuration file functions
*
* Copyright (c) 2006 Christoph Pfisterer
*/
/*
- * 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
#include "config.h"
#include "screen.h"
#include "../include/refit_call_wrapper.h"
+#include "../mok/mok.h"
// constants
#define ENCODING_UTF8 (1)
#define ENCODING_UTF16_LE (2)
+#define GetTime ST->RuntimeServices->GetTime
+#define LAST_MINUTE 1439 /* Last minute of a day */
+
static REFIT_MENU_ENTRY MenuEntryReturn = { L"Return to Main Menu", TAG_RETURN, 0, 0, 0, NULL, NULL, NULL };
//
// handle a parameter with a single integer argument
static VOID HandleInt(IN CHAR16 **TokenList, IN UINTN TokenCount, OUT UINTN *Value)
{
- if (TokenCount == 2)
- *Value = Atoi(TokenList[1]);
+ if (TokenCount == 2) {
+ if (StriCmp(TokenList[1], L"-1") == 0)
+ *Value = -1;
+ else
+ *Value = Atoi(TokenList[1]);
+ }
}
// handle a parameter with a single string argument
static VOID HandleString(IN CHAR16 **TokenList, IN UINTN TokenCount, OUT CHAR16 **Target) {
- if (TokenCount == 2) {
- MyFreePool(*Target);
- *Target = StrDuplicate(TokenList[1]);
+ if ((TokenCount == 2) && Target) {
+ if ((StrLen(TokenList[1]) > 1) && (TokenList[1][0] == L'+') &&
+ ((TokenList[1][1] == L',') || (TokenList[1][1] == L' '))) {
+ if (*Target) {
+ MergeStrings(Target, TokenList[1] + 2, L',');
+ } else {
+ *Target = StrDuplicate(TokenList[1] + 2);
+ } // if/else
+ } else {
+ MyFreePool(*Target);
+ *Target = StrDuplicate(TokenList[1]);
+ } // if/else
} // if
} // static VOID HandleString()
-// Handle a parameter with a series of string arguments, to be added to a comma-delimited
-// list. Passes each token through the CleanUpPathNameSlashes() function to ensure
-// consistency in subsequent comparisons of filenames.
+// Handle a parameter with a series of string arguments, to replace or be added to a
+// comma-delimited list. Passes each token through the CleanUpPathNameSlashes() function
+// to ensure consistency in subsequent comparisons of filenames. If the first
+// non-keyword token is "+", the list is added to the existing target string; otherwise,
+// the tokens replace the current string.
static VOID HandleStrings(IN CHAR16 **TokenList, IN UINTN TokenCount, OUT CHAR16 **Target) {
UINTN i;
+ BOOLEAN AddMode = FALSE;
+
+ if ((TokenCount > 2) && (StriCmp(TokenList[1], L"+") == 0)) {
+ AddMode = TRUE;
+ }
- if (*Target != NULL) {
+ if ((*Target != NULL) && !AddMode) {
FreePool(*Target);
*Target = NULL;
} // if
for (i = 1; i < TokenCount; i++) {
- CleanUpPathNameSlashes(TokenList[i]);
- MergeStrings(Target, TokenList[i], L',');
- }
+ if ((i != 1) || !AddMode) {
+ CleanUpPathNameSlashes(TokenList[i]);
+ MergeStrings(Target, TokenList[i], L',');
+ } // if
+ } // for
} // static VOID HandleStrings()
+// Convert TimeString (in "HH:MM" format) to a pure-minute format. Values should be
+// in the range from 0 (for 00:00, or midnight) to 1439 (for 23:59; aka LAST_MINUTE).
+// Any value outside that range denotes an error in the specification. Note that if
+// the input is a number that includes no colon, this function will return the original
+// number in UINTN form.
+static UINTN HandleTime(IN CHAR16 *TimeString) {
+ UINTN Hour = 0, Minute = 0, TimeLength, i = 0;
+
+ TimeLength = StrLen(TimeString);
+ while (i < TimeLength) {
+ if (TimeString[i] == L':') {
+ Hour = Minute;
+ Minute = 0;
+ } // if
+ if ((TimeString[i] >= L'0') && (TimeString[i] <= '9')) {
+ Minute *= 10;
+ Minute += (TimeString[i] - L'0');
+ } // if
+ i++;
+ } // while
+ return (Hour * 60 + Minute);
+} // BOOLEAN HandleTime()
+
+static BOOLEAN HandleBoolean(IN CHAR16 **TokenList, IN UINTN TokenCount) {
+ BOOLEAN TruthValue = TRUE;
+
+ if ((TokenCount >= 2) && ((StriCmp(TokenList[1], L"0") == 0) ||
+ (StriCmp(TokenList[1], L"false") == 0) ||
+ (StriCmp(TokenList[1], L"off") == 0))) {
+ TruthValue = FALSE;
+ } // if
+
+ return TruthValue;
+} // BOOLEAN HandleBoolean
+
+// Sets the default boot loader IF the current time is within the bounds
+// defined by the third and fourth tokens in the TokenList.
+static VOID SetDefaultByTime(IN CHAR16 **TokenList, OUT CHAR16 **Default) {
+ EFI_STATUS Status;
+ EFI_TIME CurrentTime;
+ UINTN StartTime = LAST_MINUTE + 1, EndTime = LAST_MINUTE + 1, Now;
+ BOOLEAN SetIt = FALSE;
+
+ StartTime = HandleTime(TokenList[2]);
+ EndTime = HandleTime(TokenList[3]);
+
+ if ((StartTime <= LAST_MINUTE) && (EndTime <= LAST_MINUTE)) {
+ Status = refit_call2_wrapper(GetTime, &CurrentTime, NULL);
+ if (Status != EFI_SUCCESS)
+ return;
+ Now = CurrentTime.Hour * 60 + CurrentTime.Minute;
+
+ if (Now > LAST_MINUTE) { // Shouldn't happen; just being paranoid
+ Print(L"Warning: Impossible system time: %d:%d\n", CurrentTime.Hour, CurrentTime.Minute);
+ return;
+ } // if impossible time
+
+ if (StartTime < EndTime) { // Time range does NOT cross midnight
+ if ((Now >= StartTime) && (Now <= EndTime))
+ SetIt = TRUE;
+ } else { // Time range DOES cross midnight
+ if ((Now >= StartTime) && (Now <= EndTime))
+ SetIt = TRUE;
+ } // if/else time range crosses midnight
+
+ if (SetIt) {
+ MyFreePool(*Default);
+ *Default = StrDuplicate(TokenList[1]);
+ } // if (SetIt)
+ } // if ((StartTime <= LAST_MINUTE) && (EndTime <= LAST_MINUTE))
+} // VOID SetDefaultByTime()
+
// read config file
VOID ReadConfig(CHAR16 *FileName)
{
REFIT_FILE File;
CHAR16 **TokenList;
CHAR16 *FlagName;
- CHAR16 *SelfPath = NULL;
+ CHAR16 *TempStr = NULL;
UINTN TokenCount, i;
+ EFI_GUID RefindGuid = REFIND_GUID_VALUE;
// Set a few defaults only if we're loading the default file.
- if (StriCmp(FileName, CONFIG_FILE_NAME) == 0) {
+ if (StriCmp(FileName, GlobalConfig.ConfigFilename) == 0) {
MyFreePool(GlobalConfig.AlsoScan);
GlobalConfig.AlsoScan = StrDuplicate(ALSO_SCAN_DIRS);
MyFreePool(GlobalConfig.DontScanDirs);
if (SelfVolume) {
if (SelfVolume->VolName) {
- SelfPath = SelfVolume->VolName ? StrDuplicate(SelfVolume->VolName) : NULL;
+ TempStr = SelfVolume->VolName ? StrDuplicate(SelfVolume->VolName) : NULL;
} else {
- SelfPath = AllocateZeroPool(256 * sizeof(CHAR16));
- if (SelfPath != NULL)
- SPrint(SelfPath, 255, L"fs%d", SelfVolume->VolNumber);
+ TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
+ if (TempStr != NULL)
+ SPrint(TempStr, 255, L"fs%d", SelfVolume->VolNumber);
} // if/else
}
- MergeStrings(&SelfPath, SelfDirPath, L':');
- GlobalConfig.DontScanDirs = SelfPath;
+ MergeStrings(&TempStr, SelfDirPath, L':');
+ MergeStrings(&TempStr, MEMTEST_LOCATIONS, L',');
+ GlobalConfig.DontScanDirs = TempStr;
MyFreePool(GlobalConfig.DontScanFiles);
GlobalConfig.DontScanFiles = StrDuplicate(DONT_SCAN_FILES);
MergeStrings(&(GlobalConfig.DontScanFiles), MOK_NAMES, L',');
MyFreePool(GlobalConfig.DontScanVolumes);
GlobalConfig.DontScanVolumes = StrDuplicate(DONT_SCAN_VOLUMES);
+ GlobalConfig.WindowsRecoveryFiles = StrDuplicate(WINDOWS_RECOVERY_FILES);
+ if (GlobalConfig.DefaultSelection != NULL) {
+ MyFreePool(GlobalConfig.DefaultSelection);
+ GlobalConfig.DefaultSelection = NULL;
+ }
+ Status = EfivarGetRaw(&RefindGuid, L"PreviousBoot", (CHAR8**) &(GlobalConfig.DefaultSelection), &i);
+ if (Status != EFI_SUCCESS)
+ GlobalConfig.DefaultSelection = NULL;
} // if
if (!FileExists(SelfDir, FileName)) {
- Print(L"Configuration file '%s' missing!\n", FileName);
- return;
+ Print(L"Configuration file '%s' missing!\n", FileName);
+ if (!FileExists(SelfDir, L"icons")) {
+ Print(L"Icons directory doesn't exist; setting textonly = TRUE!\n");
+ GlobalConfig.TextOnly = TRUE;
+ }
+ return;
}
Status = ReadFile(SelfDir, FileName, &File, &i);
GlobalConfig.ScanFor[i] = ' ';
}
+ } else if (StriCmp(TokenList[0], L"uefi_deep_legacy_scan") == 0) {
+ GlobalConfig.DeepLegacyScan = HandleBoolean(TokenList, TokenCount);
+
} else if ((StriCmp(TokenList[0], L"scan_delay") == 0) && (TokenCount == 2)) {
HandleInt(TokenList, TokenCount, &(GlobalConfig.ScanDelay));
} else if ((StriCmp(TokenList[0], L"don't_scan_files") == 0) || (StriCmp(TokenList[0], L"dont_scan_files") == 0)) {
HandleStrings(TokenList, TokenCount, &(GlobalConfig.DontScanFiles));
+ } else if (StriCmp(TokenList[0], L"windows_recovery_files") == 0) {
+ HandleStrings(TokenList, TokenCount, &(GlobalConfig.WindowsRecoveryFiles));
+
} else if (StriCmp(TokenList[0], L"scan_driver_dirs") == 0) {
HandleStrings(TokenList, TokenCount, &(GlobalConfig.DriverDirs));
GlobalConfig.ShowTools[i - 1] = TAG_SHELL;
} else if (StriCmp(FlagName, L"gptsync") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_GPTSYNC;
+ } else if (StriCmp(FlagName, L"gdisk") == 0) {
+ GlobalConfig.ShowTools[i - 1] = TAG_GDISK;
} else if (StriCmp(FlagName, L"about") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_ABOUT;
} else if (StriCmp(FlagName, L"exit") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_SHUTDOWN;
} else if (StriCmp(FlagName, L"apple_recovery") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_APPLE_RECOVERY;
+ } else if (StriCmp(FlagName, L"windows_recovery") == 0) {
+ GlobalConfig.ShowTools[i - 1] = TAG_WINDOWS_RECOVERY;
} else if (StriCmp(FlagName, L"mok_tool") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_MOK_TOOL;
} else if (StriCmp(FlagName, L"firmware") == 0) {
GlobalConfig.ShowTools[i - 1] = TAG_FIRMWARE;
+ } else if ((StriCmp(FlagName, L"memtest86") == 0) || (StriCmp(FlagName, L"memtest") == 0)) {
+ GlobalConfig.ShowTools[i - 1] = TAG_MEMTEST;
+ } else if (StriCmp(FlagName, L"netboot") == 0) {
+ GlobalConfig.ShowTools[i - 1] = TAG_NETBOOT;
} else {
Print(L" unknown showtools flag: '%s'\n", FlagName);
}
} else if (StriCmp(TokenList[0], L"banner") == 0) {
HandleString(TokenList, TokenCount, &(GlobalConfig.BannerFileName));
+ } else if ((StriCmp(TokenList[0], L"banner_scale") == 0) && (TokenCount == 2)) {
+ if (StriCmp(TokenList[1], L"noscale") == 0) {
+ GlobalConfig.BannerScale = BANNER_NOSCALE;
+ } else if ((StriCmp(TokenList[1], L"fillscreen") == 0) || (StriCmp(TokenList[1], L"fullscreen") == 0)) {
+ GlobalConfig.BannerScale = BANNER_FILLSCREEN;
+ } else {
+ Print(L" unknown banner_type flag: '%s'\n", TokenList[1]);
+ } // if/else
+
+ } else if ((StriCmp(TokenList[0], L"small_icon_size") == 0) && (TokenCount == 2)) {
+ HandleInt(TokenList, TokenCount, &i);
+ if (i >= 32)
+ GlobalConfig.IconSizes[ICON_SIZE_SMALL] = i;
+
+ } else if ((StriCmp(TokenList[0], L"big_icon_size") == 0) && (TokenCount == 2)) {
+ HandleInt(TokenList, TokenCount, &i);
+ if (i >= 32) {
+ GlobalConfig.IconSizes[ICON_SIZE_BIG] = i;
+ GlobalConfig.IconSizes[ICON_SIZE_BADGE] = i / 4;
+ }
+
} else if (StriCmp(TokenList[0], L"selection_small") == 0) {
HandleString(TokenList, TokenCount, &(GlobalConfig.SelectionSmallFileName));
HandleString(TokenList, TokenCount, &(GlobalConfig.SelectionBigFileName));
} else if (StriCmp(TokenList[0], L"default_selection") == 0) {
- HandleString(TokenList, TokenCount, &(GlobalConfig.DefaultSelection));
-
- } else if (StriCmp(TokenList[0], L"textonly") == 0) {
- if ((TokenCount >= 2) && (StriCmp(TokenList[1], L"0") == 0)) {
- GlobalConfig.TextOnly = FALSE;
+ if (TokenCount == 4) {
+ SetDefaultByTime(TokenList, &(GlobalConfig.DefaultSelection));
} else {
- GlobalConfig.TextOnly = TRUE;
+ HandleString(TokenList, TokenCount, &(GlobalConfig.DefaultSelection));
}
+ } else if (StriCmp(TokenList[0], L"textonly") == 0) {
+ GlobalConfig.TextOnly = HandleBoolean(TokenList, TokenCount);
+
} else if (StriCmp(TokenList[0], L"textmode") == 0) {
HandleInt(TokenList, TokenCount, &(GlobalConfig.RequestedTextMode));
HandleInt(TokenList, TokenCount, &(GlobalConfig.ScreensaverTime));
} else if (StriCmp(TokenList[0], L"use_graphics_for") == 0) {
- GlobalConfig.GraphicsFor = 0;
+ if ((TokenCount == 2) || ((TokenCount > 2) && (StriCmp(TokenList[1], L"+") != 0)))
+ GlobalConfig.GraphicsFor = 0;
for (i = 1; i < TokenCount; i++) {
if (StriCmp(TokenList[i], L"osx") == 0) {
GlobalConfig.GraphicsFor |= GRAPHICS_FOR_OSX;
egLoadFont(TokenList[1]);
} else if (StriCmp(TokenList[0], L"scan_all_linux_kernels") == 0) {
- if ((TokenCount >= 2) && (StriCmp(TokenList[1], L"0") == 0)) {
- GlobalConfig.ScanAllLinux = FALSE;
- } else {
- GlobalConfig.ScanAllLinux = TRUE;
- }
+ GlobalConfig.ScanAllLinux = HandleBoolean(TokenList, TokenCount);
} else if (StriCmp(TokenList[0], L"max_tags") == 0) {
HandleInt(TokenList, TokenCount, &(GlobalConfig.MaxTags));
- } else if ((StriCmp(TokenList[0], L"include") == 0) && (TokenCount == 2) && (StriCmp(FileName, CONFIG_FILE_NAME) == 0)) {
+ } else if (StriCmp(TokenList[0], L"enable_and_lock_vmx") == 0) {
+ GlobalConfig.EnableAndLockVMX = HandleBoolean(TokenList, TokenCount);
+
+ } else if ((StriCmp(TokenList[0], L"include") == 0) && (TokenCount == 2) &&
+ (StriCmp(FileName, GlobalConfig.ConfigFilename) == 0)) {
if (StriCmp(TokenList[1], FileName) != 0) {
ReadConfig(TokenList[1]);
}
FreeTokenLine(&TokenList, &TokenCount);
}
+ if ((GlobalConfig.DontScanFiles) && (GlobalConfig.WindowsRecoveryFiles))
+ MergeStrings(&(GlobalConfig.DontScanFiles), GlobalConfig.WindowsRecoveryFiles, L',');
MyFreePool(File.Buffer);
+
+ if (!FileExists(SelfDir, L"icons") && !FileExists(SelfDir, GlobalConfig.IconsDir)) {
+ Print(L"Icons directory doesn't exist; setting textonly = TRUE!\n");
+ GlobalConfig.TextOnly = TRUE;
+ }
} /* VOID ReadConfig() */
-// Finds a volume with the specified Identifier (a volume label or a number
-// followed by a colon, for the moment). If found, sets *Volume to point to
-// that volume. If not, leaves it unchanged.
+// Finds a volume with the specified Identifier (a filesystem label, a
+// partition name, a partition GUID, or a number followed by a colon). If
+// found, sets *Volume to point to that volume. If not, leaves it unchanged.
// Returns TRUE if a match was found, FALSE if not.
static BOOLEAN FindVolume(REFIT_VOLUME **Volume, CHAR16 *Identifier) {
- UINTN i = 0, CountedVolumes = 0;
+ UINTN i = 0, CountedVolumes = 0, Length;
INTN Number = -1;
- BOOLEAN Found = FALSE;
+ BOOLEAN Found = FALSE, IdIsGuid = FALSE;
+ EFI_GUID VolGuid, NullGuid = NULL_GUID_VALUE;
- if ((StrLen(Identifier) >= 2) && (Identifier[StrLen(Identifier) - 1] == L':') &&
+ VolGuid = StringAsGuid(Identifier);
+ Length = StrLen(Identifier);
+ if ((Length >= 2) && (Identifier[Length - 1] == L':') &&
(Identifier[0] >= L'0') && (Identifier[0] <= L'9')) {
Number = (INTN) Atoi(Identifier);
+ } else if (IsGuid(Identifier)) {
+ IdIsGuid = TRUE;
}
while ((i < VolumesCount) && (!Found)) {
if (Number >= 0) { // User specified a volume by number
}
CountedVolumes++;
} // if
- } else { // User specified a volume by label
- if (StriCmp(Identifier, Volumes[i]->VolName) == 0) {
+ } else { // User specified a volume by label or GUID
+ if ((StriCmp(Identifier, Volumes[i]->VolName) == 0) ||
+ (StriCmp(Identifier, Volumes[i]->PartName) == 0)) {
*Volume = Volumes[i];
Found = TRUE;
} // if
+ if (IdIsGuid && !Found) {
+ if (GuidsAreEqual(&VolGuid, &(Volumes[i]->PartGuid)) && !GuidsAreEqual(&NullGuid, &(Volumes[i]->PartGuid))) {
+ *Volume = Volumes[i];
+ Found = TRUE;
+ } // if
+ } // if
} // if/else
i++;
} // while()
} else if ((StriCmp(TokenList[0], L"icon") == 0) && (TokenCount > 1)) {
MyFreePool(Entry->me.Image);
- Entry->me.Image = egLoadIcon(CurrentVolume->RootDir, TokenList[1], 128);
+ Entry->me.Image = egLoadIcon(CurrentVolume->RootDir, TokenList[1], GlobalConfig.IconSizes[ICON_SIZE_BIG]);
if (Entry->me.Image == NULL) {
- Entry->me.Image = DummyImage(128);
+ Entry->me.Image = DummyImage(GlobalConfig.IconSizes[ICON_SIZE_BIG]);
}
} else if ((StriCmp(TokenList[0], L"initrd") == 0) && (TokenCount > 1)) {
} // if/else
MyFreePool(Title);
- } else if ((StriCmp(TokenList[0], L"include") == 0) && (TokenCount == 2) && (StriCmp(FileName, CONFIG_FILE_NAME) == 0)) {
+ } else if ((StriCmp(TokenList[0], L"include") == 0) && (TokenCount == 2) &&
+ (StriCmp(FileName, GlobalConfig.ConfigFilename) == 0)) {
if (StriCmp(TokenList[1], FileName) != 0) {
ScanUserConfigured(TokenList[1]);
}
} // if()
} // VOID ScanUserConfigured()
+// Create an options file based on /etc/fstab. The resulting file has two options
+// lines, one of which boots the system with "ro root={rootfs}" and the other of
+// which boots the system with "ro root={rootfs} single", where "{rootfs}" is the
+// filesystem identifier associated with the "/" line in /etc/fstab.
+static REFIT_FILE * GenerateOptionsFromEtcFstab(REFIT_VOLUME *Volume) {
+ UINTN TokenCount, i;
+ REFIT_FILE *Options = NULL, *Fstab = NULL;
+ EFI_STATUS Status;
+ CHAR16 **TokenList, *Line, Root[100];
+
+ if (FileExists(Volume->RootDir, L"\\etc\\fstab")) {
+ Options = AllocateZeroPool(sizeof(REFIT_FILE));
+ Fstab = AllocateZeroPool(sizeof(REFIT_FILE));
+ Status = ReadFile(Volume->RootDir, L"\\etc\\fstab", Fstab, &i);
+ if (CheckError(Status, L"while reading /etc/fstab")) {
+ if (Options != NULL)
+ FreePool(Options);
+ if (Fstab != NULL)
+ FreePool(Fstab);
+ Options = NULL;
+ Fstab = NULL;
+ } else { // File read; locate root fs and create entries
+ Options->Encoding = ENCODING_UTF16_LE;
+ while ((TokenCount = ReadTokenLine(Fstab, &TokenList)) > 0) {
+ if (TokenCount > 2) {
+ Root[0] = '\0';
+ if (StriCmp(TokenList[1], L"\\") == 0) {
+ SPrint(Root, 99, L"%s", TokenList[0]);
+ } else if (StriCmp(TokenList[2], L"\\") == 0) {
+ SPrint(Root, 99, L"%s=%s", TokenList[0], TokenList[1]);
+ } // if/elseif/elseif
+ if (Root[0] != L'\0') {
+ for (i = 0; i < StrLen(Root); i++)
+ if (Root[i] == '\\')
+ Root[i] = '/';
+ Line = PoolPrint(L"\"Boot with normal options\" \"ro root=%s\"\n", Root);
+ MergeStrings((CHAR16 **) &(Options->Buffer), Line, 0);
+ MyFreePool(Line);
+ Line = PoolPrint(L"\"Boot into single-user mode\" \"ro root=%s single\"\n", Root);
+ MergeStrings((CHAR16**) &(Options->Buffer), Line, 0);
+ Options->BufferSize = StrLen((CHAR16*) Options->Buffer) * sizeof(CHAR16);
+ } // if
+ } // if
+ FreeTokenLine(&TokenList, &TokenCount);
+ } // while
+
+ Options->Current8Ptr = (CHAR8 *)Options->Buffer;
+ Options->End8Ptr = Options->Current8Ptr + Options->BufferSize;
+ Options->Current16Ptr = (CHAR16 *)Options->Buffer;
+ Options->End16Ptr = Options->Current16Ptr + (Options->BufferSize >> 1);
+
+ MyFreePool(Fstab->Buffer);
+ MyFreePool(Fstab);
+ } // if/else file read error
+ } // if /etc/fstab exists
+ return Options;
+} // GenerateOptionsFromEtcFstab()
+
+
// Read a Linux kernel options file for a Linux boot loader into memory. The LoaderPath
// and Volume variables identify the location of the options file, but not its name --
// you pass this function the filename of the Linux kernel, initial RAM disk, or other
// kernel developers decided to use that name for a similar purpose, but with a
// different file format. Thus, I'm migrating rEFInd to use the name refind_linux.conf,
// but I want a migration period in which both names are used.
+// If a rEFInd options file can't be found, try to generate minimal options from
+// /etc/fstab on the same volume as the kernel. This typically works only if the
+// kernel is being read from the Linux root filesystem.
//
// The return value is a pointer to the REFIT_FILE handle for the file, or NULL if
// it wasn't found.
REFIT_FILE * ReadLinuxOptionsFile(IN CHAR16 *LoaderPath, IN REFIT_VOLUME *Volume) {
CHAR16 *OptionsFilename, *FullFilename;
- BOOLEAN GoOn = TRUE;
+ BOOLEAN GoOn = TRUE, FileFound = FALSE;
UINTN i = 0, size;
REFIT_FILE *File = NULL;
EFI_STATUS Status;
if (FileExists(Volume->RootDir, FullFilename)) {
File = AllocateZeroPool(sizeof(REFIT_FILE));
Status = ReadFile(Volume->RootDir, FullFilename, File, &size);
- GoOn = FALSE;
if (CheckError(Status, L"while loading the Linux options file")) {
if (File != NULL)
FreePool(File);
File = NULL;
- GoOn = TRUE;
- } // if error
+ } else {
+ GoOn = FALSE;
+ FileFound = TRUE;
+ } // if/else error
} // if file exists
} else { // a filename string is NULL
GoOn = FALSE;
} // if/else
+ if (!FileFound)
+ File = GenerateOptionsFromEtcFstab(Volume);
MyFreePool(OptionsFilename);
MyFreePool(FullFilename);
OptionsFilename = FullFilename = NULL;