mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-28 15:34:33 +00:00
103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
|
|
This file is part of Fennix Kernel.
|
|
|
|
Fennix Kernel is free software: you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation, either version 3 of
|
|
the License, or (at your option) any later version.
|
|
|
|
Fennix Kernel is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <exec.hpp>
|
|
|
|
#include <msexec.h>
|
|
|
|
#include "../kernel.h"
|
|
#include "../Fex.hpp"
|
|
|
|
namespace Execute
|
|
{
|
|
BinaryType GetBinaryType(void *Image)
|
|
{
|
|
Fex *FexHdr = (Fex *)Image;
|
|
|
|
/* Elf64_Ehdr and Elf32_Ehdr are very similar (Elf64_Half and
|
|
Elf32_Half are the same size type) so we can use directly Elf64_Ehdr. */
|
|
Elf64_Ehdr *ELFHeader = (Elf64_Ehdr *)Image;
|
|
|
|
IMAGE_DOS_HEADER *MZHeader = (IMAGE_DOS_HEADER *)Image;
|
|
|
|
/* Check Fex magic */
|
|
if (FexHdr->Magic[0] == 'F' && FexHdr->Magic[1] == 'E' && FexHdr->Magic[2] == 'X' && FexHdr->Magic[3] == '\0')
|
|
{
|
|
/* If the fex type is driver, we shouldn't return as Fex. */
|
|
if (FexHdr->Type == FexFormatType::FexFormatType_Executable)
|
|
{
|
|
debug("Image - Fex");
|
|
return BinaryType::BinTypeFex;
|
|
}
|
|
else if (FexHdr->Type == FexFormatType::FexFormatType_Driver)
|
|
{
|
|
debug("Fex Driver is not supposed to be executed.");
|
|
}
|
|
}
|
|
/* Check ELF magic. */
|
|
else if (ELFHeader->e_ident[EI_MAG0] == ELFMAG0 &&
|
|
ELFHeader->e_ident[EI_MAG1] == ELFMAG1 &&
|
|
ELFHeader->e_ident[EI_MAG2] == ELFMAG2 &&
|
|
ELFHeader->e_ident[EI_MAG3] == ELFMAG3)
|
|
{
|
|
debug("Image - ELF");
|
|
return BinaryType::BinTypeELF;
|
|
}
|
|
/* Every Windows executable starts with MZ header. */
|
|
else if (MZHeader->e_magic == IMAGE_DOS_SIGNATURE)
|
|
{
|
|
IMAGE_NT_HEADERS *PEHeader = (IMAGE_NT_HEADERS *)(((char *)Image) + MZHeader->e_lfanew);
|
|
IMAGE_OS2_HEADER *NEHeader = (IMAGE_OS2_HEADER *)(((char *)Image) + MZHeader->e_lfanew);
|
|
|
|
/* TODO: LE, EDOS */
|
|
if (PEHeader->Signature == IMAGE_NT_SIGNATURE)
|
|
{
|
|
debug("Image - PE");
|
|
return BinaryType::BinTypePE;
|
|
}
|
|
else if (NEHeader->ne_magic == IMAGE_OS2_SIGNATURE)
|
|
{
|
|
debug("Image - NE");
|
|
return BinaryType::BinTypeNE;
|
|
}
|
|
else
|
|
{
|
|
debug("Image - MZ");
|
|
return BinaryType::BinTypeMZ;
|
|
}
|
|
}
|
|
|
|
/* ... */
|
|
return BinaryType::BinTypeUnknown;
|
|
}
|
|
|
|
BinaryType GetBinaryType(char *Path)
|
|
{
|
|
BinaryType Type = BinaryType::BinTypeInvalid;
|
|
VirtualFileSystem::File ExFile = vfs->Open(Path);
|
|
|
|
if (ExFile.IsOK())
|
|
{
|
|
debug("File opened: %s", Path);
|
|
Type = GetBinaryType((void *)ExFile.node->Address);
|
|
}
|
|
|
|
vfs->Close(ExFile);
|
|
return Type;
|
|
}
|
|
}
|