* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+/*
+ * The x86 Linux Boot Protocol is explained at:
+ * https://www.kernel.org/doc/Documentation/x86/boot.txt
+ */
+
#ifndef _M_ARM
#ifdef _M_IX86
/* INCLUDES *******************************************************************/
#include <freeldr.h>
-#include <debug.h>
+#include <debug.h>
DBG_DEFAULT_CHANNEL(LINUX);
/* GLOBALS ********************************************************************/
BOOLEAN NewStyleLinuxKernel = FALSE;
ULONG LinuxKernelSize = 0;
ULONG LinuxInitrdSize = 0;
-CHAR LinuxKernelName[260];
-CHAR LinuxInitrdName[260];
-BOOLEAN LinuxHasInitrd = FALSE;
-CHAR LinuxCommandLine[260] = "";
+PCSTR LinuxKernelName = NULL;
+PCSTR LinuxInitrdName = NULL;
+PSTR LinuxCommandLine = NULL;
ULONG LinuxCommandLineSize = 0;
PVOID LinuxKernelLoadAddress = NULL;
PVOID LinuxInitrdLoadAddress = NULL;
CHAR LinuxBootDescription[80];
-CHAR LinuxBootPath[260] = "";
/* FUNCTIONS ******************************************************************/
-BOOLEAN RemoveQuotes(PCHAR QuotedString)
+static BOOLEAN LinuxReadBootSector(ULONG LinuxKernelFile);
+static BOOLEAN LinuxReadSetupSector(ULONG LinuxKernelFile);
+static BOOLEAN LinuxReadKernel(ULONG LinuxKernelFile);
+static BOOLEAN LinuxCheckKernelVersion(VOID);
+static BOOLEAN LinuxReadInitrd(ULONG LinuxInitrdFile);
+
+static VOID
+RemoveQuotes(
+ IN OUT PSTR QuotedString)
{
- CHAR TempString[200];
- PCHAR p;
- PSTR Start;
+ PCHAR p;
+ PSTR Start;
+ SIZE_T Size;
/* Skip spaces up to " */
p = QuotedString;
- while (*p == ' ' || *p == '"')
- p++;
+ while (*p == ' ' || *p == '\t' || *p == '"')
+ ++p;
Start = p;
/* Go up to next " */
- while (*p != '"' && *p != ANSI_NULL)
- p++;
+ while (*p != ANSI_NULL && *p != '"')
+ ++p;
+ /* NULL-terminate */
*p = ANSI_NULL;
- /* Copy result */
- strcpy(TempString, Start);
- strcpy(QuotedString, TempString);
-
- return TRUE;
+ /* Move the NULL-terminated string back into 'QuotedString' in place */
+ Size = (strlen(Start) + 1) * sizeof(CHAR);
+ memmove(QuotedString, Start, Size);
}
-VOID
-LoadAndBootLinux(IN OperatingSystemItem* OperatingSystem,
- IN USHORT OperatingSystemVersion)
+ARC_STATUS
+LoadAndBootLinux(
+ IN ULONG Argc,
+ IN PCHAR Argv[],
+ IN PCHAR Envp[])
{
- PCSTR SectionName = OperatingSystem->SystemPartition;
- PCSTR Description = OperatingSystem->LoadIdentifier;
- PFILE LinuxKernel = 0;
- PFILE LinuxInitrdFile = 0;
-
- UiDrawBackdrop();
-
- if (Description)
- sprintf(LinuxBootDescription, "Loading %s...", Description);
+ ARC_STATUS Status;
+ PCSTR Description;
+ PCSTR ArgValue;
+ PCSTR BootPath;
+ UCHAR DriveNumber = 0;
+ ULONG PartitionNumber = 0;
+ ULONG LinuxKernel = 0;
+ ULONG LinuxInitrdFile = 0;
+ FILEINFORMATION FileInfo;
+ CHAR ArcPath[MAX_PATH];
+
+ Description = GetArgumentValue(Argc, Argv, "LoadIdentifier");
+ if (Description && *Description)
+ RtlStringCbPrintfA(LinuxBootDescription, sizeof(LinuxBootDescription), "Loading %s...", Description);
else
strcpy(LinuxBootDescription, "Loading Linux...");
+ UiDrawBackdrop();
UiDrawStatusText(LinuxBootDescription);
UiDrawProgressBarCenter(0, 100, LinuxBootDescription);
- /* Parse the .ini file section */
- if (!LinuxParseIniSection(SectionName))
+ /* Find all the message box settings and run them */
+ UiShowMessageBoxesInArgv(Argc, Argv);
+
+ /*
+ * Check whether we have a "BootPath" value (takes precedence
+ * over both "BootDrive" and "BootPartition").
+ */
+ BootPath = GetArgumentValue(Argc, Argv, "BootPath");
+ if (!BootPath || !*BootPath)
+ {
+ /* We don't have one, check whether we use "BootDrive" and "BootPartition" */
+
+ /* Retrieve the boot drive (optional, fall back to using default path otherwise) */
+ ArgValue = GetArgumentValue(Argc, Argv, "BootDrive");
+ if (ArgValue && *ArgValue)
+ {
+ DriveNumber = DriveMapGetBiosDriveNumber(ArgValue);
+
+ /* Retrieve the boot partition (not optional and cannot be zero) */
+ PartitionNumber = 0;
+ ArgValue = GetArgumentValue(Argc, Argv, "BootPartition");
+ if (ArgValue && *ArgValue)
+ PartitionNumber = atoi(ArgValue);
+ if (PartitionNumber == 0)
+ {
+ UiMessageBox("Boot partition cannot be 0!");
+ goto LinuxBootFailed;
+ // return EINVAL;
+ }
+
+ /* Construct the corresponding ARC path */
+ ConstructArcPath(ArcPath, "", DriveNumber, PartitionNumber);
+ *strrchr(ArcPath, '\\') = ANSI_NULL; // Trim the trailing path separator.
+
+ BootPath = ArcPath;
+ }
+ else
+ {
+ /* Fall back to using the system partition as default path */
+ BootPath = GetArgumentValue(Argc, Argv, "SystemPartition");
+ }
+ }
+
+ /* Get the kernel name */
+ LinuxKernelName = GetArgumentValue(Argc, Argv, "Kernel");
+ if (!LinuxKernelName || !*LinuxKernelName)
+ {
+ UiMessageBox("Linux kernel filename not specified for selected OS!");
goto LinuxBootFailed;
+ }
+
+ /* Get the initrd name (optional) */
+ LinuxInitrdName = GetArgumentValue(Argc, Argv, "Initrd");
+
+ /* Get the command line (optional) */
+ LinuxCommandLineSize = 0;
+ LinuxCommandLine = GetArgumentValue(Argc, Argv, "CommandLine");
+ if (LinuxCommandLine && *LinuxCommandLine)
+ {
+ RemoveQuotes(LinuxCommandLine);
+ LinuxCommandLineSize = (ULONG)strlen(LinuxCommandLine) + 1;
+ LinuxCommandLineSize = min(LinuxCommandLineSize, 260);
+ }
/* Open the kernel */
- LinuxKernel = FsOpenFile(LinuxKernelName);
- if (!LinuxKernel)
+ Status = FsOpenFile(LinuxKernelName, BootPath, OpenReadOnly, &LinuxKernel);
+ if (Status != ESUCCESS)
{
- UiMessageBox("Linux kernel \'%s\' not found.", LinuxKernelName);
+ UiMessageBox("Linux kernel '%s' not found.", LinuxKernelName);
goto LinuxBootFailed;
}
/* Open the initrd file image (if necessary) */
- if (LinuxHasInitrd)
+ if (LinuxInitrdName)
{
- LinuxInitrdFile = FsOpenFile(LinuxInitrdName);
- if (!LinuxInitrdFile)
+ Status = FsOpenFile(LinuxInitrdName, BootPath, OpenReadOnly, &LinuxInitrdFile);
+ if (Status != ESUCCESS)
{
- UiMessageBox("Linux initrd image \'%s\' not found.", LinuxInitrdName);
+ UiMessageBox("Linux initrd image '%s' not found.", LinuxInitrdName);
goto LinuxBootFailed;
}
}
- /* Read the boot sector */
+ /* Load the boot sector */
if (!LinuxReadBootSector(LinuxKernel))
goto LinuxBootFailed;
- /* Read the setup sector */
+ /* Load the setup sector */
if (!LinuxReadSetupSector(LinuxKernel))
goto LinuxBootFailed;
/* Calc kernel size */
- LinuxKernelSize = FsGetFileSize(LinuxKernel) - (512 + SetupSectorSize);
+ Status = ArcGetFileInformation(LinuxKernel, &FileInfo);
+ if (Status != ESUCCESS || FileInfo.EndingAddress.HighPart != 0)
+ LinuxKernelSize = 0;
+ else
+ LinuxKernelSize = FileInfo.EndingAddress.LowPart - (512 + SetupSectorSize);
- /* Get the file size */
- LinuxInitrdSize = FsGetFileSize(LinuxInitrdFile);
+ /* Get the initrd file image (if necessary) */
+ LinuxInitrdSize = 0;
+ if (LinuxInitrdName)
+ {
+ Status = ArcGetFileInformation(LinuxInitrdFile, &FileInfo);
+ if (Status != ESUCCESS || FileInfo.EndingAddress.HighPart != 0)
+ LinuxInitrdSize = 0;
+ else
+ LinuxInitrdSize = FileInfo.EndingAddress.LowPart;
+ }
- /* Read the kernel */
+ /* Load the kernel */
if (!LinuxReadKernel(LinuxKernel))
goto LinuxBootFailed;
- /* Read the initrd (if necessary) */
- if (LinuxHasInitrd)
+ /* Load the initrd (if necessary) */
+ if (LinuxInitrdName)
{
if (!LinuxReadInitrd(LinuxInitrdFile))
goto LinuxBootFailed;
RtlCopyMemory((PVOID)0x90000, LinuxBootSector, 512);
RtlCopyMemory((PVOID)0x90200, LinuxSetupSector, SetupSectorSize);
- RtlCopyMemory((PVOID)0x99000, LinuxCommandLine, LinuxCommandLineSize);
+ RtlCopyMemory((PVOID)0x99000,
+ LinuxCommandLine ? LinuxCommandLine : "",
+ LinuxCommandLine ? LinuxCommandLineSize : sizeof(ANSI_NULL));
UiUnInitialize("Booting Linux...");
-
- DiskStopFloppyMotor();
+ IniCleanup();
if (LinuxSetupSector->LoadFlags & LINUX_FLAG_LOAD_HIGH)
BootNewLinuxKernel();
LinuxBootFailed:
if (LinuxKernel)
- FsCloseFile(LinuxKernel);
+ ArcClose(LinuxKernel);
if (LinuxInitrdFile)
- FsCloseFile(LinuxInitrdFile);
+ ArcClose(LinuxInitrdFile);
if (LinuxBootSector != NULL)
MmFreeMemory(LinuxBootSector);
LinuxBootSector = NULL;
LinuxSetupSector = NULL;
- LinuxKernelLoadAddress = NULL;
- LinuxInitrdLoadAddress = NULL;
SetupSectorSize = 0;
NewStyleLinuxKernel = FALSE;
LinuxKernelSize = 0;
- LinuxHasInitrd = FALSE;
- strcpy(LinuxCommandLine, "");
+ LinuxInitrdSize = 0;
+ LinuxKernelName = NULL;
+ LinuxInitrdName = NULL;
+ LinuxCommandLine = NULL;
LinuxCommandLineSize = 0;
-}
-
-BOOLEAN LinuxParseIniSection(PCSTR SectionName)
-{
- ULONG_PTR SectionId;
-
- /* Find all the message box settings and run them */
- UiShowMessageBoxesInSection(SectionName);
-
- /* Try to open the operating system section in the .ini file */
- if (!IniOpenSection(SectionName, &SectionId))
- {
- UiMessageBox("Section [%s] not found in freeldr.ini.", SectionName);
- return FALSE;
- }
-
- if (!IniReadSettingByName(SectionId, "BootPath", LinuxBootPath, sizeof(LinuxBootPath)))
- {
- UiMessageBox("Boot path not specified for selected OS!");
- return FALSE;
- }
-
- /* Get the kernel name */
- if (!IniReadSettingByName(SectionId, "Kernel", LinuxKernelName, sizeof(LinuxKernelName)))
- {
- UiMessageBox("Linux kernel filename not specified for selected OS!");
- return FALSE;
- }
-
- /* Get the initrd name */
- if (IniReadSettingByName(SectionId, "Initrd", LinuxInitrdName, sizeof(LinuxInitrdName)))
- {
- LinuxHasInitrd = TRUE;
- }
-
- /* Get the command line */
- if (IniReadSettingByName(SectionId, "CommandLine", LinuxCommandLine, sizeof(LinuxCommandLine)))
- {
- RemoveQuotes(LinuxCommandLine);
- LinuxCommandLineSize = strlen(LinuxCommandLine) + 1;
- }
+ LinuxKernelLoadAddress = NULL;
+ LinuxInitrdLoadAddress = NULL;
+ *LinuxBootDescription = ANSI_NULL;
- return TRUE;
+ return ENOEXEC;
}
-BOOLEAN LinuxReadBootSector(PFILE LinuxKernelFile)
+static BOOLEAN LinuxReadBootSector(ULONG LinuxKernelFile)
{
+ LARGE_INTEGER Position;
+
/* Allocate memory for boot sector */
LinuxBootSector = MmAllocateMemoryWithType(512, LoaderSystemCode);
if (LinuxBootSector == NULL)
return FALSE;
- /* Read linux boot sector */
- FsSetFilePointer(LinuxKernelFile, 0);
- if (!FsReadFile(LinuxKernelFile, 512, NULL, LinuxBootSector))
+ /* Load the linux boot sector */
+ Position.QuadPart = 0;
+ if (ArcSeek(LinuxKernelFile, &Position, SeekAbsolute) != ESUCCESS)
+ return FALSE;
+ if (ArcRead(LinuxKernelFile, LinuxBootSector, 512, NULL) != ESUCCESS)
return FALSE;
/* Check for validity */
// DbgDumpBuffer(DPRINT_LINUX, LinuxBootSector, 512);
- TRACE("SetupSectors: %d\n", LinuxBootSector->SetupSectors);
- TRACE("RootFlags: 0x%x\n", LinuxBootSector->RootFlags);
- TRACE("SystemSize: 0x%x\n", LinuxBootSector->SystemSize);
- TRACE("SwapDevice: 0x%x\n", LinuxBootSector->SwapDevice);
- TRACE("RamSize: 0x%x\n", LinuxBootSector->RamSize);
- TRACE("VideoMode: 0x%x\n", LinuxBootSector->VideoMode);
- TRACE("RootDevice: 0x%x\n", LinuxBootSector->RootDevice);
- TRACE("BootFlag: 0x%x\n", LinuxBootSector->BootFlag);
+ TRACE("SetupSectors: %d\n" , LinuxBootSector->SetupSectors);
+ TRACE("RootFlags: 0x%x\n", LinuxBootSector->RootFlags);
+ TRACE("SystemSize: 0x%x\n", LinuxBootSector->SystemSize);
+ TRACE("SwapDevice: 0x%x\n", LinuxBootSector->SwapDevice);
+ TRACE("RamSize: 0x%x\n", LinuxBootSector->RamSize);
+ TRACE("VideoMode: 0x%x\n", LinuxBootSector->VideoMode);
+ TRACE("RootDevice: 0x%x\n", LinuxBootSector->RootDevice);
+ TRACE("BootFlag: 0x%x\n", LinuxBootSector->BootFlag);
return TRUE;
}
-BOOLEAN LinuxReadSetupSector(PFILE LinuxKernelFile)
+static BOOLEAN LinuxReadSetupSector(ULONG LinuxKernelFile)
{
+ LARGE_INTEGER Position;
UCHAR TempLinuxSetupSector[512];
- LinuxSetupSector = (PLINUX_SETUPSECTOR)TempLinuxSetupSector;
-
- /* Read first linux setup sector */
- FsSetFilePointer(LinuxKernelFile, 512);
- if (!FsReadFile(LinuxKernelFile, 512, NULL, TempLinuxSetupSector))
+ /* Load the first linux setup sector */
+ Position.QuadPart = 512;
+ if (ArcSeek(LinuxKernelFile, &Position, SeekAbsolute) != ESUCCESS)
+ return FALSE;
+ if (ArcRead(LinuxKernelFile, TempLinuxSetupSector, 512, NULL) != ESUCCESS)
return FALSE;
/* Check the kernel version */
+ LinuxSetupSector = (PLINUX_SETUPSECTOR)TempLinuxSetupSector;
if (!LinuxCheckKernelVersion())
return FALSE;
/* Copy over first setup sector */
RtlCopyMemory(LinuxSetupSector, TempLinuxSetupSector, 512);
- /* Read in the rest of the linux setup sectors */
- FsSetFilePointer(LinuxKernelFile, 1024);
- if (!FsReadFile(LinuxKernelFile, SetupSectorSize - 512, NULL, (PVOID)((ULONG_PTR)LinuxSetupSector + 512)))
+ /* Load the rest of the linux setup sectors */
+ Position.QuadPart = 1024;
+ if (ArcSeek(LinuxKernelFile, &Position, SeekAbsolute) != ESUCCESS)
+ return FALSE;
+ if (ArcRead(LinuxKernelFile, (PVOID)((ULONG_PTR)LinuxSetupSector + 512), SetupSectorSize - 512, NULL) != ESUCCESS)
return FALSE;
// DbgDumpBuffer(DPRINT_LINUX, LinuxSetupSector, SetupSectorSize);
TRACE("SetupHeaderSignature: 0x%x (HdrS)\n", LinuxSetupSector->SetupHeaderSignature);
- TRACE("Version: 0x%x\n", LinuxSetupSector->Version);
+ TRACE("Version: 0x%x\n", LinuxSetupSector->Version);
TRACE("RealModeSwitch: 0x%x\n", LinuxSetupSector->RealModeSwitch);
- TRACE("SetupSeg: 0x%x\n", LinuxSetupSector->SetupSeg);
+ TRACE("SetupSeg: 0x%x\n", LinuxSetupSector->SetupSeg);
TRACE("StartSystemSeg: 0x%x\n", LinuxSetupSector->StartSystemSeg);
- TRACE("KernelVersion: 0x%x\n", LinuxSetupSector->KernelVersion);
- TRACE("TypeOfLoader: 0x%x\n", LinuxSetupSector->TypeOfLoader);
- TRACE("LoadFlags: 0x%x\n", LinuxSetupSector->LoadFlags);
- TRACE("SetupMoveSize: 0x%x\n", LinuxSetupSector->SetupMoveSize);
- TRACE("Code32Start: 0x%x\n", LinuxSetupSector->Code32Start);
+ TRACE("KernelVersion: 0x%x\n", LinuxSetupSector->KernelVersion);
+ TRACE("TypeOfLoader: 0x%x\n", LinuxSetupSector->TypeOfLoader);
+ TRACE("LoadFlags: 0x%x\n", LinuxSetupSector->LoadFlags);
+ TRACE("SetupMoveSize: 0x%x\n", LinuxSetupSector->SetupMoveSize);
+ TRACE("Code32Start: 0x%x\n", LinuxSetupSector->Code32Start);
TRACE("RamdiskAddress: 0x%x\n", LinuxSetupSector->RamdiskAddress);
- TRACE("RamdiskSize: 0x%x\n", LinuxSetupSector->RamdiskSize);
- TRACE("BootSectKludgeOffset: 0x%x\n", LinuxSetupSector->BootSectKludgeOffset);
+ TRACE("RamdiskSize: 0x%x\n", LinuxSetupSector->RamdiskSize);
+ TRACE("BootSectKludgeOffset: 0x%x\n", LinuxSetupSector->BootSectKludgeOffset);
TRACE("BootSectKludgeSegment: 0x%x\n", LinuxSetupSector->BootSectKludgeSegment);
TRACE("HeapEnd: 0x%x\n", LinuxSetupSector->HeapEnd);
return TRUE;
}
-BOOLEAN LinuxReadKernel(PFILE LinuxKernelFile)
+static BOOLEAN LinuxReadKernel(ULONG LinuxKernelFile)
{
+ PVOID LoadAddress;
+ LARGE_INTEGER Position;
ULONG BytesLoaded;
CHAR StatusText[260];
- PVOID LoadAddress;
- sprintf(StatusText, "Loading %s", LinuxKernelName);
+ RtlStringCbPrintfA(StatusText, sizeof(StatusText), "Loading %s", LinuxKernelName);
UiDrawStatusText(StatusText);
/* Allocate memory for Linux kernel */
LoadAddress = LinuxKernelLoadAddress;
- /* Read linux kernel to 0x100000 (1mb) */
- FsSetFilePointer(LinuxKernelFile, 512 + SetupSectorSize);
+ /* Load the linux kernel at 0x100000 (1mb) */
+ Position.QuadPart = 512 + SetupSectorSize;
+ if (ArcSeek(LinuxKernelFile, &Position, SeekAbsolute) != ESUCCESS)
+ return FALSE;
for (BytesLoaded=0; BytesLoaded<LinuxKernelSize; )
{
- if (!FsReadFile(LinuxKernelFile, LINUX_READ_CHUNK_SIZE, NULL, LoadAddress))
+ if (ArcRead(LinuxKernelFile, LoadAddress, LINUX_READ_CHUNK_SIZE, NULL) != ESUCCESS)
return FALSE;
BytesLoaded += LINUX_READ_CHUNK_SIZE;
return TRUE;
}
-BOOLEAN LinuxCheckKernelVersion(VOID)
+static BOOLEAN LinuxCheckKernelVersion(VOID)
{
/* Just assume old kernel until we find otherwise */
NewStyleLinuxKernel = FALSE;
LinuxSetupSector->LoadFlags |= LINUX_FLAG_CAN_USE_HEAP;
}
- if ((NewStyleLinuxKernel == FALSE) && (LinuxHasInitrd))
+ if ((NewStyleLinuxKernel == FALSE) && (LinuxInitrdName))
{
UiMessageBox("Error: Cannot load a ramdisk (initrd) with an old kernel image.");
return FALSE;
return TRUE;
}
-BOOLEAN LinuxReadInitrd(PFILE LinuxInitrdFile)
+static BOOLEAN LinuxReadInitrd(ULONG LinuxInitrdFile)
{
ULONG BytesLoaded;
CHAR StatusText[260];
- sprintf(StatusText, "Loading %s", LinuxInitrdName);
+ RtlStringCbPrintfA(StatusText, sizeof(StatusText), "Loading %s", LinuxInitrdName);
UiDrawStatusText(StatusText);
// Allocate memory for the ramdisk
LinuxSetupSector->RamdiskSize = LinuxInitrdSize;
TRACE("RamdiskAddress: 0x%x\n", LinuxSetupSector->RamdiskAddress);
- TRACE("RamdiskSize: 0x%x\n", LinuxSetupSector->RamdiskSize);
+ TRACE("RamdiskSize: 0x%x\n", LinuxSetupSector->RamdiskSize);
if (LinuxSetupSector->Version >= 0x0203)
{
TRACE("InitrdAddressMax: 0x%x\n", LinuxSetupSector->InitrdAddressMax);
}
- /* Read in the ramdisk */
+ /* Load the ramdisk */
for (BytesLoaded=0; BytesLoaded<LinuxInitrdSize; )
{
- if (!FsReadFile(LinuxInitrdFile, LINUX_READ_CHUNK_SIZE, NULL, (PVOID)LinuxInitrdLoadAddress))
+ if (ArcRead(LinuxInitrdFile, (PVOID)LinuxInitrdLoadAddress, LINUX_READ_CHUNK_SIZE, NULL) != ESUCCESS)
return FALSE;
BytesLoaded += LINUX_READ_CHUNK_SIZE;
projects / reactos.git / blobdiff