EFI loader will need to parse and load PE executables. Add functions to
facilitate that. The API is inspired by the already existing ELF API.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
v1 -> v2:
- replace use of pe.h header originating from Wine with <linux/pe.h>
---
common/Kconfig | 3 +
common/Makefile | 1 +
common/pe.c | 379 +++++++++++++++++++++++++++++++
include/linux/pagemap.h | 1 +
include/linux/pe.h | 482 ++++++++++++++++++++++++++++++++++++++++
include/pe.h | 124 +++++++++++
6 files changed, 990 insertions(+)
create mode 100644 common/pe.c
create mode 100644 include/linux/pe.h
create mode 100644 include/pe.h
diff --git a/common/Kconfig b/common/Kconfig
index a7034a166189..33903aa249b7 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -623,6 +623,9 @@ config BOOTM_AIMAGE
help
Support using Android Images.
+config PE
+ bool "PE/COFF Support" if COMPILE_TEST
+
config ELF
bool "ELF Support" if COMPILE_TEST
diff --git a/common/Makefile b/common/Makefile
index 42edb40999b1..2fc4a703c8c4 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -13,6 +13,7 @@ obj-pbl-y += memsize.o
obj-y += resource.o
obj-pbl-y += bootsource.o
obj-$(CONFIG_ELF) += elf.o
+obj-$(CONFIG_PE) += pe.o
obj-y += restart.o
obj-y += poweroff.o
obj-y += slice.o
diff --git a/common/pe.c b/common/pe.c
new file mode 100644
index 000000000000..5c33665dfa74
--- /dev/null
+++ b/common/pe.c
@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * PE image loader
+ *
+ * based partly on wine code
+ *
+ * Copyright (c) 2016 Alexander Graf
+ */
+
+#define pr_fmt(fmt) "pe: " fmt
+
+#include <common.h>
+#include <pe.h>
+#include <linux/sizes.h>
+#include <libfile.h>
+#include <memory.h>
+#include <linux/err.h>
+
+static int machines[] = {
+#if defined(__aarch64__)
+ IMAGE_FILE_MACHINE_ARM64,
+#elif defined(__arm__)
+ IMAGE_FILE_MACHINE_ARM,
+ IMAGE_FILE_MACHINE_THUMB,
+ IMAGE_FILE_MACHINE_ARMNT,
+#endif
+
+#if defined(__x86_64__)
+ IMAGE_FILE_MACHINE_AMD64,
+#elif defined(__i386__)
+ IMAGE_FILE_MACHINE_I386,
+#endif
+
+#if defined(__riscv) && (__riscv_xlen == 32)
+ IMAGE_FILE_MACHINE_RISCV32,
+#endif
+
+#if defined(__riscv) && (__riscv_xlen == 64)
+ IMAGE_FILE_MACHINE_RISCV64,
+#endif
+ 0 };
+
+/**
+ * pe_loader_relocate() - relocate PE binary
+ *
+ * @rel: pointer to the relocation table
+ * @rel_size: size of the relocation table in bytes
+ * @pe_reloc: actual load address of the image
+ * @pref_address: preferred load address of the image
+ * Return: status code
+ */
+static int pe_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
+ unsigned long rel_size, void *pe_reloc,
+ unsigned long pref_address)
+{
+ unsigned long delta = (unsigned long)pe_reloc - pref_address;
+ const IMAGE_BASE_RELOCATION *end;
+ int i;
+
+ if (delta == 0)
+ return 0;
+
+ end = (const IMAGE_BASE_RELOCATION *)((const char *)rel + rel_size);
+ while (rel < end && rel->SizeOfBlock) {
+ const uint16_t *relocs = (const uint16_t *)(rel + 1);
+ i = (rel->SizeOfBlock - sizeof(*rel)) / sizeof(uint16_t);
+ while (i--) {
+ uint32_t offset = (uint32_t)(*relocs & 0xfff) +
+ rel->VirtualAddress;
+ int type = *relocs >> PAGE_SHIFT;
+ uint64_t *x64 = pe_reloc + offset;
+ uint32_t *x32 = pe_reloc + offset;
+ uint16_t *x16 = pe_reloc + offset;
+
+ switch (type) {
+ case IMAGE_REL_BASED_ABSOLUTE:
+ break;
+ case IMAGE_REL_BASED_HIGH:
+ *x16 += ((uint32_t)delta) >> 16;
+ break;
+ case IMAGE_REL_BASED_LOW:
+ *x16 += (uint16_t)delta;
+ break;
+ case IMAGE_REL_BASED_HIGHLOW:
+ *x32 += (uint32_t)delta;
+ break;
+ case IMAGE_REL_BASED_DIR64:
+ *x64 += (uint64_t)delta;
+ break;
+#ifdef __riscv
+ case IMAGE_REL_BASED_RISCV_HI20:
+ *x32 = ((*x32 & 0xfffff000) + (uint32_t)delta) |
+ (*x32 & 0x00000fff);
+ break;
+ case IMAGE_REL_BASED_RISCV_LOW12I:
+ case IMAGE_REL_BASED_RISCV_LOW12S:
+ /* We know that we're 4k aligned */
+ if (delta & 0xfff) {
+ pr_err("Unsupported reloc offset\n");
+ return -ENOEXEC;
+ }
+ break;
+#endif
+ default:
+ pr_err("Unknown Relocation off %x type %x\n",
+ offset, type);
+ return -ENOEXEC;
+ }
+ relocs++;
+ }
+ rel = (const IMAGE_BASE_RELOCATION *)relocs;
+ }
+ return 0;
+}
+
+/**
+ * pe_check_header() - check if a memory buffer contains a PE-COFF image
+ *
+ * @buffer: buffer to check
+ * @size: size of buffer
+ * @nt_header: on return pointer to NT header of PE-COFF image
+ * Return: 0 if the buffer contains a PE-COFF image
+ */
+static int pe_check_header(void *buffer, size_t size, void **nt_header)
+{
+ struct mz_hdr *dos = buffer;
+ IMAGE_NT_HEADERS32 *nt;
+
+ if (size < sizeof(*dos))
+ return -EINVAL;
+
+ /* Check for DOS magix */
+ if (dos->magic != MZ_MAGIC)
+ return -EINVAL;
+
+ /*
+ * Check if the image section header fits into the file. Knowing that at
+ * least one section header follows we only need to check for the length
+ * of the 64bit header which is longer than the 32bit header.
+ */
+ if (size < dos->peaddr + sizeof(IMAGE_NT_HEADERS32))
+ return -EINVAL;
+ nt = (IMAGE_NT_HEADERS32 *)((u8 *)buffer + dos->peaddr);
+
+ /* Check for PE-COFF magic */
+ if (nt->FileHeader.magic != PE_MAGIC)
+ return -EINVAL;
+
+ if (nt_header)
+ *nt_header = nt;
+
+ return 0;
+}
+
+/**
+ * section_size() - determine size of section
+ *
+ * The size of a section in memory if normally given by VirtualSize.
+ * If VirtualSize is not provided, use SizeOfRawData.
+ *
+ * @sec: section header
+ * Return: size of section in memory
+ */
+static u32 section_size(IMAGE_SECTION_HEADER *sec)
+{
+ if (sec->Misc.VirtualSize)
+ return sec->Misc.VirtualSize;
+ else
+ return sec->SizeOfRawData;
+}
+
+struct pe_image *pe_open_buf(void *bin, size_t pe_size)
+{
+ struct pe_image *pe;
+ int i;
+ int supported = 0;
+ int ret;
+
+ pe = calloc(1, sizeof(*pe));
+ if (!pe)
+ return ERR_PTR(-ENOMEM);
+
+ ret = pe_check_header(bin, pe_size, (void **)&pe->nt);
+ if (ret) {
+ pr_err("Not a PE-COFF file\n");
+ ret = -ENOEXEC;
+ goto err;
+ }
+
+ for (i = 0; machines[i]; i++)
+ if (machines[i] == pe->nt->FileHeader.machine) {
+ supported = 1;
+ break;
+ }
+
+ if (!supported) {
+ pr_err("Machine type 0x%04x is not supported\n",
+ pe->nt->FileHeader.machine);
+ ret = -ENOEXEC;
+ goto err;
+ }
+
+ pe->num_sections = pe->nt->FileHeader.sections;
+ pe->sections = (void *)&pe->nt->OptionalHeader +
+ pe->nt->FileHeader.opt_hdr_size;
+
+ if (pe_size < ((void *)pe->sections + sizeof(pe->sections[0]) * pe->num_sections - bin)) {
+ pr_err("Invalid number of sections: %d\n", pe->num_sections);
+ ret = -ENOEXEC;
+ goto err;
+ }
+
+ pe->bin = bin;
+
+ return pe;
+err:
+ return ERR_PTR(ret);
+}
+
+struct pe_image *pe_open(const char *filename)
+{
+ struct pe_image *pe;
+ size_t size;
+ void *bin;
+
+ bin = read_file(filename, &size);
+ if (!bin)
+ return ERR_PTR(-errno);
+
+ pe = pe_open_buf(bin, size);
+ if (IS_ERR(pe))
+ free(bin);
+
+ return pe;
+}
+
+static struct resource *pe_alloc(size_t virt_size)
+{
+ resource_size_t start, end;
+ int ret;
+
+ ret = memory_bank_first_find_space(&start, &end);
+ if (ret)
+ return NULL;
+
+ start = ALIGN(start, SZ_64K);
+
+ if (start + virt_size > end)
+ return NULL;
+
+ return request_sdram_region("pe-code", start, virt_size);
+}
+
+unsigned long pe_get_mem_size(struct pe_image *pe)
+{
+ unsigned long virt_size = 0;
+ int i;
+
+ /* Calculate upper virtual address boundary */
+ for (i = pe->num_sections - 1; i >= 0; i--) {
+ IMAGE_SECTION_HEADER *sec = &pe->sections[i];
+
+ virt_size = max_t(unsigned long, virt_size,
+ sec->VirtualAddress + section_size(sec));
+ }
+
+ /* Read 32/64bit specific header bits */
+ if (pe->nt->OptionalHeader.magic == PE_OPT_MAGIC_PE32PLUS) {
+ IMAGE_NT_HEADERS64 *nt64 = (void *)pe->nt;
+ struct pe32plus_opt_hdr *opt = &nt64->OptionalHeader;
+
+ virt_size = ALIGN(virt_size, opt->section_align);
+ } else if (pe->nt->OptionalHeader.magic == PE_OPT_MAGIC_PE32) {
+ struct pe32_opt_hdr *opt = &pe->nt->OptionalHeader;
+
+ virt_size = ALIGN(virt_size, opt->section_align);
+ } else {
+ pr_err("Invalid optional header magic %x\n",
+ pe->nt->OptionalHeader.magic);
+ return 0;
+ }
+
+ return virt_size;
+}
+
+int pe_load(struct pe_image *pe)
+{
+ int rel_idx = IMAGE_DIRECTORY_ENTRY_BASERELOC;
+ uint64_t image_base;
+ unsigned long virt_size;
+ unsigned long rel_size;
+ const IMAGE_BASE_RELOCATION *rel;
+ struct mz_hdr *dos;
+ struct resource *code;
+ void *pe_reloc;
+ int i;
+
+ virt_size = pe_get_mem_size(pe);
+ if (!virt_size)
+ return -ENOEXEC;
+
+ /* Read 32/64bit specific header bits */
+ if (pe->nt->OptionalHeader.magic == PE_OPT_MAGIC_PE32PLUS) {
+ IMAGE_NT_HEADERS64 *nt64 = (void *)pe->nt;
+ struct pe32plus_opt_hdr *opt = &nt64->OptionalHeader;
+ image_base = opt->image_base;
+ pe->image_type = opt->subsys;
+
+ code = pe_alloc(virt_size);
+ if (!code)
+ return -ENOMEM;
+
+ pe_reloc = (void *)code->start;
+
+ pe->entry = code->start + opt->entry_point;
+ rel_size = nt64->DataDirectory[rel_idx].size;
+ rel = pe_reloc + nt64->DataDirectory[rel_idx].virtual_address;
+ } else if (pe->nt->OptionalHeader.magic == PE_OPT_MAGIC_PE32) {
+ struct pe32_opt_hdr *opt = &pe->nt->OptionalHeader;
+ image_base = opt->image_base;
+ pe->image_type = opt->subsys;
+ virt_size = ALIGN(virt_size, opt->section_align);
+
+ code = pe_alloc(virt_size);
+ if (!code)
+ return -ENOMEM;
+
+ pe_reloc = (void *)code->start;
+
+ pe->entry = code->start + opt->entry_point;
+ rel_size = pe->nt->DataDirectory[rel_idx].size;
+ rel = pe_reloc + pe->nt->DataDirectory[rel_idx].virtual_address;
+ } else {
+ pr_err("Invalid optional header magic %x\n",
+ pe->nt->OptionalHeader.magic);
+ return -ENOEXEC;
+ }
+
+ /* Copy PE headers */
+ memcpy(pe_reloc, pe->bin,
+ sizeof(*dos)
+ + sizeof(*pe->nt)
+ + pe->nt->FileHeader.opt_hdr_size
+ + pe->num_sections * sizeof(IMAGE_SECTION_HEADER));
+
+ /* Load sections into RAM */
+ for (i = pe->num_sections - 1; i >= 0; i--) {
+ IMAGE_SECTION_HEADER *sec = &pe->sections[i];
+ u32 copy_size = section_size(sec);
+
+ if (copy_size > sec->SizeOfRawData) {
+ copy_size = sec->SizeOfRawData;
+ memset(pe_reloc + sec->VirtualAddress, 0,
+ sec->Misc.VirtualSize);
+ }
+
+ memcpy(pe_reloc + sec->VirtualAddress,
+ pe->bin + sec->PointerToRawData,
+ copy_size);
+ }
+
+ /* Run through relocations */
+ if (pe_loader_relocate(rel, rel_size, pe_reloc,
+ (unsigned long)image_base) != 0) {
+ release_sdram_region(code);
+ return -EINVAL;
+ }
+
+ pe->code = code;
+
+ return 0;
+}
+
+void pe_close(struct pe_image *pe)
+{
+ release_sdram_region(pe->code);
+ free(pe->bin);
+ free(pe);
+}
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 01cbfc17c57b..0db192e4d3ab 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -12,6 +12,7 @@
#define PAGE_SIZE 4096
#define PAGE_SHIFT 12
+#define PAGE_MASK (PAGE_SIZE - 1)
#define PAGE_ALIGN(s) ALIGN(s, PAGE_SIZE)
#define PAGE_ALIGN_DOWN(x) ALIGN_DOWN(x, PAGE_SIZE)
diff --git a/include/linux/pe.h b/include/linux/pe.h
new file mode 100644
index 000000000000..fdf9c95709ba
--- /dev/null
+++ b/include/linux/pe.h
@@ -0,0 +1,482 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2011 Red Hat, Inc.
+ * All rights reserved.
+ *
+ * Author(s): Peter Jones <pjones@xxxxxxxxxx>
+ */
+#ifndef __LINUX_PE_H
+#define __LINUX_PE_H
+
+#include <linux/types.h>
+
+/*
+ * Starting from version v3.0, the major version field should be interpreted as
+ * a bit mask of features supported by the kernel's EFI stub:
+ * - 0x1: initrd loading from the LINUX_EFI_INITRD_MEDIA_GUID device path,
+ * - 0x2: initrd loading using the initrd= command line option, where the file
+ * may be specified using device path notation, and is not required to
+ * reside on the same volume as the loaded kernel image.
+ *
+ * The recommended way of loading and starting v1.0 or later kernels is to use
+ * the LoadImage() and StartImage() EFI boot services, and expose the initrd
+ * via the LINUX_EFI_INITRD_MEDIA_GUID device path.
+ *
+ * Versions older than v1.0 may support initrd loading via the image load
+ * options (using initrd=, limited to the volume from which the kernel itself
+ * was loaded), or only via arch specific means (bootparams, DT, etc).
+ *
+ * The minor version field must remain 0x0.
+ * (https://lore.kernel.org/all/efd6f2d4-547c-1378-1faa-53c044dbd297@xxxxxxxxx/)
+ */
+#define LINUX_EFISTUB_MAJOR_VERSION 0x3
+#define LINUX_EFISTUB_MINOR_VERSION 0x0
+
+/*
+ * LINUX_PE_MAGIC appears at offset 0x38 into the MS-DOS header of EFI bootable
+ * Linux kernel images that target the architecture as specified by the PE/COFF
+ * header machine type field.
+ */
+#define LINUX_PE_MAGIC 0x818223cd
+
+#define MZ_MAGIC 0x5a4d /* "MZ" */
+
+#define PE_MAGIC 0x00004550 /* "PE\0\0" */
+#define PE_OPT_MAGIC_PE32 0x010b
+#define PE_OPT_MAGIC_PE32_ROM 0x0107
+#define PE_OPT_MAGIC_PE32PLUS 0x020b
+
+/* machine type */
+#define IMAGE_FILE_MACHINE_UNKNOWN 0x0000
+#define IMAGE_FILE_MACHINE_AM33 0x01d3
+#define IMAGE_FILE_MACHINE_AMD64 0x8664
+#define IMAGE_FILE_MACHINE_ARM 0x01c0
+#define IMAGE_FILE_MACHINE_ARMV7 0x01c4
+#define IMAGE_FILE_MACHINE_ARM64 0xaa64
+#define IMAGE_FILE_MACHINE_EBC 0x0ebc
+#define IMAGE_FILE_MACHINE_I386 0x014c
+#define IMAGE_FILE_MACHINE_IA64 0x0200
+#define IMAGE_FILE_MACHINE_M32R 0x9041
+#define IMAGE_FILE_MACHINE_MIPS16 0x0266
+#define IMAGE_FILE_MACHINE_MIPSFPU 0x0366
+#define IMAGE_FILE_MACHINE_MIPSFPU16 0x0466
+#define IMAGE_FILE_MACHINE_POWERPC 0x01f0
+#define IMAGE_FILE_MACHINE_POWERPCFP 0x01f1
+#define IMAGE_FILE_MACHINE_R4000 0x0166
+#define IMAGE_FILE_MACHINE_RISCV32 0x5032
+#define IMAGE_FILE_MACHINE_RISCV64 0x5064
+#define IMAGE_FILE_MACHINE_RISCV128 0x5128
+#define IMAGE_FILE_MACHINE_SH3 0x01a2
+#define IMAGE_FILE_MACHINE_SH3DSP 0x01a3
+#define IMAGE_FILE_MACHINE_SH3E 0x01a4
+#define IMAGE_FILE_MACHINE_SH4 0x01a6
+#define IMAGE_FILE_MACHINE_SH5 0x01a8
+#define IMAGE_FILE_MACHINE_THUMB 0x01c2
+#define IMAGE_FILE_MACHINE_WCEMIPSV2 0x0169
+#define IMAGE_FILE_MACHINE_LOONGARCH32 0x6232
+#define IMAGE_FILE_MACHINE_LOONGARCH64 0x6264
+
+/* flags */
+#define IMAGE_FILE_RELOCS_STRIPPED 0x0001
+#define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002
+#define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004
+#define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008
+#define IMAGE_FILE_AGGRESSIVE_WS_TRIM 0x0010
+#define IMAGE_FILE_LARGE_ADDRESS_AWARE 0x0020
+#define IMAGE_FILE_16BIT_MACHINE 0x0040
+#define IMAGE_FILE_BYTES_REVERSED_LO 0x0080
+#define IMAGE_FILE_32BIT_MACHINE 0x0100
+#define IMAGE_FILE_DEBUG_STRIPPED 0x0200
+#define IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400
+#define IMAGE_FILE_NET_RUN_FROM_SWAP 0x0800
+#define IMAGE_FILE_SYSTEM 0x1000
+#define IMAGE_FILE_DLL 0x2000
+#define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000
+#define IMAGE_FILE_BYTES_REVERSED_HI 0x8000
+
+#define IMAGE_FILE_OPT_ROM_MAGIC 0x107
+#define IMAGE_FILE_OPT_PE32_MAGIC 0x10b
+#define IMAGE_FILE_OPT_PE32_PLUS_MAGIC 0x20b
+
+#define IMAGE_SUBSYSTEM_UNKNOWN 0
+#define IMAGE_SUBSYSTEM_NATIVE 1
+#define IMAGE_SUBSYSTEM_WINDOWS_GUI 2
+#define IMAGE_SUBSYSTEM_WINDOWS_CUI 3
+#define IMAGE_SUBSYSTEM_POSIX_CUI 7
+#define IMAGE_SUBSYSTEM_WINDOWS_CE_GUI 9
+#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10
+#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11
+#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12
+#define IMAGE_SUBSYSTEM_EFI_ROM_IMAGE 13
+#define IMAGE_SUBSYSTEM_XBOX 14
+
+#define IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE 0x0040
+#define IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY 0x0080
+#define IMAGE_DLL_CHARACTERISTICS_NX_COMPAT 0x0100
+#define IMAGE_DLLCHARACTERISTICS_NO_ISOLATION 0x0200
+#define IMAGE_DLLCHARACTERISTICS_NO_SEH 0x0400
+#define IMAGE_DLLCHARACTERISTICS_NO_BIND 0x0800
+#define IMAGE_DLLCHARACTERISTICS_WDM_DRIVER 0x2000
+#define IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE 0x8000
+
+#define IMAGE_DLLCHARACTERISTICS_EX_CET_COMPAT 0x0001
+#define IMAGE_DLLCHARACTERISTICS_EX_FORWARD_CFI_COMPAT 0x0040
+
+/* they actually defined 0x00000000 as well, but I think we'll skip that one. */
+#define IMAGE_SCN_RESERVED_0 0x00000001
+#define IMAGE_SCN_RESERVED_1 0x00000002
+#define IMAGE_SCN_RESERVED_2 0x00000004
+#define IMAGE_SCN_TYPE_NO_PAD 0x00000008 /* don't pad - obsolete */
+#define IMAGE_SCN_RESERVED_3 0x00000010
+#define IMAGE_SCN_CNT_CODE 0x00000020 /* .text */
+#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 /* .data */
+#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 /* .bss */
+#define IMAGE_SCN_LNK_OTHER 0x00000100 /* reserved */
+#define IMAGE_SCN_LNK_INFO 0x00000200 /* .drectve comments */
+#define IMAGE_SCN_RESERVED_4 0x00000400
+#define IMAGE_SCN_LNK_REMOVE 0x00000800 /* .o only - scn to be rm'd*/
+#define IMAGE_SCN_LNK_COMDAT 0x00001000 /* .o only - COMDAT data */
+#define IMAGE_SCN_RESERVED_5 0x00002000 /* spec omits this */
+#define IMAGE_SCN_RESERVED_6 0x00004000 /* spec omits this */
+#define IMAGE_SCN_GPREL 0x00008000 /* global pointer referenced data */
+/* spec lists 0x20000 twice, I suspect they meant 0x10000 for one of them */
+#define IMAGE_SCN_MEM_PURGEABLE 0x00010000 /* reserved for "future" use */
+#define IMAGE_SCN_16BIT 0x00020000 /* reserved for "future" use */
+#define IMAGE_SCN_LOCKED 0x00040000 /* reserved for "future" use */
+#define IMAGE_SCN_PRELOAD 0x00080000 /* reserved for "future" use */
+/* and here they just stuck a 1-byte integer in the middle of a bitfield */
+#define IMAGE_SCN_ALIGN_1BYTES 0x00100000 /* it does what it says on the box */
+#define IMAGE_SCN_ALIGN_2BYTES 0x00200000
+#define IMAGE_SCN_ALIGN_4BYTES 0x00300000
+#define IMAGE_SCN_ALIGN_8BYTES 0x00400000
+#define IMAGE_SCN_ALIGN_16BYTES 0x00500000
+#define IMAGE_SCN_ALIGN_32BYTES 0x00600000
+#define IMAGE_SCN_ALIGN_64BYTES 0x00700000
+#define IMAGE_SCN_ALIGN_128BYTES 0x00800000
+#define IMAGE_SCN_ALIGN_256BYTES 0x00900000
+#define IMAGE_SCN_ALIGN_512BYTES 0x00a00000
+#define IMAGE_SCN_ALIGN_1024BYTES 0x00b00000
+#define IMAGE_SCN_ALIGN_2048BYTES 0x00c00000
+#define IMAGE_SCN_ALIGN_4096BYTES 0x00d00000
+#define IMAGE_SCN_ALIGN_8192BYTES 0x00e00000
+#define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 /* extended relocations */
+#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 /* scn can be discarded */
+#define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 /* cannot be cached */
+#define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 /* not pageable */
+#define IMAGE_SCN_MEM_SHARED 0x10000000 /* can be shared */
+#define IMAGE_SCN_MEM_EXECUTE 0x20000000 /* can be executed as code */
+#define IMAGE_SCN_MEM_READ 0x40000000 /* readable */
+#define IMAGE_SCN_MEM_WRITE 0x80000000 /* writeable */
+
+#define IMAGE_DEBUG_TYPE_CODEVIEW 2
+#define IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS 20
+
+#ifndef __ASSEMBLY__
+
+struct mz_hdr {
+ uint16_t magic; /* MZ_MAGIC */
+ uint16_t lbsize; /* size of last used block */
+ uint16_t blocks; /* pages in file, 0x3 */
+ uint16_t relocs; /* relocations */
+ uint16_t hdrsize; /* header size in "paragraphs" */
+ uint16_t min_extra_pps; /* .bss */
+ uint16_t max_extra_pps; /* runtime limit for the arena size */
+ uint16_t ss; /* relative stack segment */
+ uint16_t sp; /* initial %sp register */
+ uint16_t checksum; /* word checksum */
+ uint16_t ip; /* initial %ip register */
+ uint16_t cs; /* initial %cs relative to load segment */
+ uint16_t reloc_table_offset; /* offset of the first relocation */
+ uint16_t overlay_num; /* overlay number. set to 0. */
+ uint16_t reserved0[4]; /* reserved */
+ uint16_t oem_id; /* oem identifier */
+ uint16_t oem_info; /* oem specific */
+ uint16_t reserved1[10]; /* reserved */
+ uint32_t peaddr; /* address of pe header */
+ char message[]; /* message to print */
+};
+
+struct mz_reloc {
+ uint16_t offset;
+ uint16_t segment;
+};
+
+struct pe_hdr {
+ uint32_t magic; /* PE magic */
+ uint16_t machine; /* machine type */
+ uint16_t sections; /* number of sections */
+ uint32_t timestamp; /* time_t */
+ uint32_t symbol_table; /* symbol table offset */
+ uint32_t symbols; /* number of symbols */
+ uint16_t opt_hdr_size; /* size of optional header */
+ uint16_t flags; /* flags */
+};
+
+/* the fact that pe32 isn't padded where pe32+ is 64-bit means union won't
+ * work right. vomit. */
+struct pe32_opt_hdr {
+ /* "standard" header */
+ uint16_t magic; /* file type */
+ uint8_t ld_major; /* linker major version */
+ uint8_t ld_minor; /* linker minor version */
+ uint32_t text_size; /* size of text section(s) */
+ uint32_t data_size; /* size of data section(s) */
+ uint32_t bss_size; /* size of bss section(s) */
+ uint32_t entry_point; /* file offset of entry point */
+ uint32_t code_base; /* relative code addr in ram */
+ uint32_t data_base; /* relative data addr in ram */
+ /* "windows" header */
+ uint32_t image_base; /* preferred load address */
+ uint32_t section_align; /* alignment in bytes */
+ uint32_t file_align; /* file alignment in bytes */
+ uint16_t os_major; /* major OS version */
+ uint16_t os_minor; /* minor OS version */
+ uint16_t image_major; /* major image version */
+ uint16_t image_minor; /* minor image version */
+ uint16_t subsys_major; /* major subsystem version */
+ uint16_t subsys_minor; /* minor subsystem version */
+ uint32_t win32_version; /* reserved, must be 0 */
+ uint32_t image_size; /* image size */
+ uint32_t header_size; /* header size rounded up to
+ file_align */
+ uint32_t csum; /* checksum */
+ uint16_t subsys; /* subsystem */
+ uint16_t dll_flags; /* more flags! */
+ uint32_t stack_size_req;/* amt of stack requested */
+ uint32_t stack_size; /* amt of stack required */
+ uint32_t heap_size_req; /* amt of heap requested */
+ uint32_t heap_size; /* amt of heap required */
+ uint32_t loader_flags; /* reserved, must be 0 */
+ uint32_t data_dirs; /* number of data dir entries */
+};
+
+struct pe32plus_opt_hdr {
+ uint16_t magic; /* file type */
+ uint8_t ld_major; /* linker major version */
+ uint8_t ld_minor; /* linker minor version */
+ uint32_t text_size; /* size of text section(s) */
+ uint32_t data_size; /* size of data section(s) */
+ uint32_t bss_size; /* size of bss section(s) */
+ uint32_t entry_point; /* file offset of entry point */
+ uint32_t code_base; /* relative code addr in ram */
+ /* "windows" header */
+ uint64_t image_base; /* preferred load address */
+ uint32_t section_align; /* alignment in bytes */
+ uint32_t file_align; /* file alignment in bytes */
+ uint16_t os_major; /* major OS version */
+ uint16_t os_minor; /* minor OS version */
+ uint16_t image_major; /* major image version */
+ uint16_t image_minor; /* minor image version */
+ uint16_t subsys_major; /* major subsystem version */
+ uint16_t subsys_minor; /* minor subsystem version */
+ uint32_t win32_version; /* reserved, must be 0 */
+ uint32_t image_size; /* image size */
+ uint32_t header_size; /* header size rounded up to
+ file_align */
+ uint32_t csum; /* checksum */
+ uint16_t subsys; /* subsystem */
+ uint16_t dll_flags; /* more flags! */
+ uint64_t stack_size_req;/* amt of stack requested */
+ uint64_t stack_size; /* amt of stack required */
+ uint64_t heap_size_req; /* amt of heap requested */
+ uint64_t heap_size; /* amt of heap required */
+ uint32_t loader_flags; /* reserved, must be 0 */
+ uint32_t data_dirs; /* number of data dir entries */
+};
+
+struct data_dirent {
+ uint32_t virtual_address; /* relative to load address */
+ uint32_t size;
+};
+
+struct data_directory {
+ struct data_dirent exports; /* .edata */
+ struct data_dirent imports; /* .idata */
+ struct data_dirent resources; /* .rsrc */
+ struct data_dirent exceptions; /* .pdata */
+ struct data_dirent certs; /* certs */
+ struct data_dirent base_relocations; /* .reloc */
+ struct data_dirent debug; /* .debug */
+ struct data_dirent arch; /* reservered */
+ struct data_dirent global_ptr; /* global pointer reg. Size=0 */
+ struct data_dirent tls; /* .tls */
+ struct data_dirent load_config; /* load configuration structure */
+ struct data_dirent bound_imports; /* no idea */
+ struct data_dirent import_addrs; /* import address table */
+ struct data_dirent delay_imports; /* delay-load import table */
+ struct data_dirent clr_runtime_hdr; /* .cor (object only) */
+ struct data_dirent reserved;
+};
+
+struct section_header {
+ char name[8]; /* name or "/12\0" string tbl offset */
+ uint32_t virtual_size; /* size of loaded section in ram */
+ uint32_t virtual_address; /* relative virtual address */
+ uint32_t raw_data_size; /* size of the section */
+ uint32_t data_addr; /* file pointer to first page of sec */
+ uint32_t relocs; /* file pointer to relocation entries */
+ uint32_t line_numbers; /* line numbers! */
+ uint16_t num_relocs; /* number of relocations */
+ uint16_t num_lin_numbers; /* srsly. */
+ uint32_t flags;
+};
+
+enum x64_coff_reloc_type {
+ IMAGE_REL_AMD64_ABSOLUTE = 0,
+ IMAGE_REL_AMD64_ADDR64,
+ IMAGE_REL_AMD64_ADDR32,
+ IMAGE_REL_AMD64_ADDR32N,
+ IMAGE_REL_AMD64_REL32,
+ IMAGE_REL_AMD64_REL32_1,
+ IMAGE_REL_AMD64_REL32_2,
+ IMAGE_REL_AMD64_REL32_3,
+ IMAGE_REL_AMD64_REL32_4,
+ IMAGE_REL_AMD64_REL32_5,
+ IMAGE_REL_AMD64_SECTION,
+ IMAGE_REL_AMD64_SECREL,
+ IMAGE_REL_AMD64_SECREL7,
+ IMAGE_REL_AMD64_TOKEN,
+ IMAGE_REL_AMD64_SREL32,
+ IMAGE_REL_AMD64_PAIR,
+ IMAGE_REL_AMD64_SSPAN32,
+};
+
+enum arm_coff_reloc_type {
+ IMAGE_REL_ARM_ABSOLUTE,
+ IMAGE_REL_ARM_ADDR32,
+ IMAGE_REL_ARM_ADDR32N,
+ IMAGE_REL_ARM_BRANCH2,
+ IMAGE_REL_ARM_BRANCH1,
+ IMAGE_REL_ARM_SECTION,
+ IMAGE_REL_ARM_SECREL,
+};
+
+enum sh_coff_reloc_type {
+ IMAGE_REL_SH3_ABSOLUTE,
+ IMAGE_REL_SH3_DIRECT16,
+ IMAGE_REL_SH3_DIRECT32,
+ IMAGE_REL_SH3_DIRECT8,
+ IMAGE_REL_SH3_DIRECT8_WORD,
+ IMAGE_REL_SH3_DIRECT8_LONG,
+ IMAGE_REL_SH3_DIRECT4,
+ IMAGE_REL_SH3_DIRECT4_WORD,
+ IMAGE_REL_SH3_DIRECT4_LONG,
+ IMAGE_REL_SH3_PCREL8_WORD,
+ IMAGE_REL_SH3_PCREL8_LONG,
+ IMAGE_REL_SH3_PCREL12_WORD,
+ IMAGE_REL_SH3_STARTOF_SECTION,
+ IMAGE_REL_SH3_SIZEOF_SECTION,
+ IMAGE_REL_SH3_SECTION,
+ IMAGE_REL_SH3_SECREL,
+ IMAGE_REL_SH3_DIRECT32_NB,
+ IMAGE_REL_SH3_GPREL4_LONG,
+ IMAGE_REL_SH3_TOKEN,
+ IMAGE_REL_SHM_PCRELPT,
+ IMAGE_REL_SHM_REFLO,
+ IMAGE_REL_SHM_REFHALF,
+ IMAGE_REL_SHM_RELLO,
+ IMAGE_REL_SHM_RELHALF,
+ IMAGE_REL_SHM_PAIR,
+ IMAGE_REL_SHM_NOMODE,
+};
+
+enum ppc_coff_reloc_type {
+ IMAGE_REL_PPC_ABSOLUTE,
+ IMAGE_REL_PPC_ADDR64,
+ IMAGE_REL_PPC_ADDR32,
+ IMAGE_REL_PPC_ADDR24,
+ IMAGE_REL_PPC_ADDR16,
+ IMAGE_REL_PPC_ADDR14,
+ IMAGE_REL_PPC_REL24,
+ IMAGE_REL_PPC_REL14,
+ IMAGE_REL_PPC_ADDR32N,
+ IMAGE_REL_PPC_SECREL,
+ IMAGE_REL_PPC_SECTION,
+ IMAGE_REL_PPC_SECREL16,
+ IMAGE_REL_PPC_REFHI,
+ IMAGE_REL_PPC_REFLO,
+ IMAGE_REL_PPC_PAIR,
+ IMAGE_REL_PPC_SECRELLO,
+ IMAGE_REL_PPC_GPREL,
+ IMAGE_REL_PPC_TOKEN,
+};
+
+enum x86_coff_reloc_type {
+ IMAGE_REL_I386_ABSOLUTE,
+ IMAGE_REL_I386_DIR16,
+ IMAGE_REL_I386_REL16,
+ IMAGE_REL_I386_DIR32,
+ IMAGE_REL_I386_DIR32NB,
+ IMAGE_REL_I386_SEG12,
+ IMAGE_REL_I386_SECTION,
+ IMAGE_REL_I386_SECREL,
+ IMAGE_REL_I386_TOKEN,
+ IMAGE_REL_I386_SECREL7,
+ IMAGE_REL_I386_REL32,
+};
+
+enum ia64_coff_reloc_type {
+ IMAGE_REL_IA64_ABSOLUTE,
+ IMAGE_REL_IA64_IMM14,
+ IMAGE_REL_IA64_IMM22,
+ IMAGE_REL_IA64_IMM64,
+ IMAGE_REL_IA64_DIR32,
+ IMAGE_REL_IA64_DIR64,
+ IMAGE_REL_IA64_PCREL21B,
+ IMAGE_REL_IA64_PCREL21M,
+ IMAGE_REL_IA64_PCREL21F,
+ IMAGE_REL_IA64_GPREL22,
+ IMAGE_REL_IA64_LTOFF22,
+ IMAGE_REL_IA64_SECTION,
+ IMAGE_REL_IA64_SECREL22,
+ IMAGE_REL_IA64_SECREL64I,
+ IMAGE_REL_IA64_SECREL32,
+ IMAGE_REL_IA64_DIR32NB,
+ IMAGE_REL_IA64_SREL14,
+ IMAGE_REL_IA64_SREL22,
+ IMAGE_REL_IA64_SREL32,
+ IMAGE_REL_IA64_UREL32,
+ IMAGE_REL_IA64_PCREL60X,
+ IMAGE_REL_IA64_PCREL60B,
+ IMAGE_REL_IA64_PCREL60F,
+ IMAGE_REL_IA64_PCREL60I,
+ IMAGE_REL_IA64_PCREL60M,
+ IMAGE_REL_IA64_IMMGPREL6,
+ IMAGE_REL_IA64_TOKEN,
+ IMAGE_REL_IA64_GPREL32,
+ IMAGE_REL_IA64_ADDEND,
+};
+
+struct coff_reloc {
+ uint32_t virtual_address;
+ uint32_t symbol_table_index;
+ union {
+ enum x64_coff_reloc_type x64_type;
+ enum arm_coff_reloc_type arm_type;
+ enum sh_coff_reloc_type sh_type;
+ enum ppc_coff_reloc_type ppc_type;
+ enum x86_coff_reloc_type x86_type;
+ enum ia64_coff_reloc_type ia64_type;
+ uint16_t data;
+ };
+};
+
+/*
+ * Definitions for the contents of the certs data block
+ */
+#define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002
+#define WIN_CERT_TYPE_EFI_OKCS115 0x0EF0
+#define WIN_CERT_TYPE_EFI_GUID 0x0EF1
+
+#define WIN_CERT_REVISION_1_0 0x0100
+#define WIN_CERT_REVISION_2_0 0x0200
+
+struct win_certificate {
+ uint32_t length;
+ uint16_t revision;
+ uint16_t cert_type;
+};
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __LINUX_PE_H */
diff --git a/include/pe.h b/include/pe.h
new file mode 100644
index 000000000000..742dd8235a24
--- /dev/null
+++ b/include/pe.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Portable Executable binary format structures
+ *
+ * Copyright (c) 2016 Alexander Graf
+ *
+ * Based on wine code, adjusted to use <linux/pe.h> defines
+ */
+
+#ifndef _PE_H
+#define _PE_H
+
+#include <linux/pe.h>
+
+#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
+
+typedef struct _IMAGE_NT_HEADERS64 {
+ struct pe_hdr FileHeader;
+ struct pe32plus_opt_hdr OptionalHeader;
+ struct data_dirent DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
+} IMAGE_NT_HEADERS64;
+
+typedef struct _IMAGE_NT_HEADERS {
+ struct pe_hdr FileHeader;
+ struct pe32_opt_hdr OptionalHeader;
+ struct data_dirent DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
+} IMAGE_NT_HEADERS32;
+
+#define IMAGE_SIZEOF_SHORT_NAME 8
+
+typedef struct _IMAGE_SECTION_HEADER {
+ uint8_t Name[IMAGE_SIZEOF_SHORT_NAME];
+ union {
+ uint32_t PhysicalAddress;
+ uint32_t VirtualSize;
+ } Misc;
+ uint32_t VirtualAddress;
+ uint32_t SizeOfRawData;
+ uint32_t PointerToRawData;
+ uint32_t PointerToRelocations;
+ uint32_t PointerToLinenumbers;
+ uint16_t NumberOfRelocations;
+ uint16_t NumberOfLinenumbers;
+ uint32_t Characteristics;
+} IMAGE_SECTION_HEADER;
+
+/* Indices for Optional Header Data Directories */
+#define IMAGE_DIRECTORY_ENTRY_SECURITY 4
+#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5
+
+typedef struct _IMAGE_BASE_RELOCATION
+{
+ uint32_t VirtualAddress;
+ uint32_t SizeOfBlock;
+ /* WORD TypeOffset[1]; */
+} IMAGE_BASE_RELOCATION;
+
+#define IMAGE_SIZEOF_RELOCATION 10
+
+/* generic relocation types */
+#define IMAGE_REL_BASED_ABSOLUTE 0
+#define IMAGE_REL_BASED_HIGH 1
+#define IMAGE_REL_BASED_LOW 2
+#define IMAGE_REL_BASED_HIGHLOW 3
+#define IMAGE_REL_BASED_HIGHADJ 4
+#define IMAGE_REL_BASED_MIPS_JMPADDR 5
+#define IMAGE_REL_BASED_ARM_MOV32A 5 /* yes, 5 too */
+#define IMAGE_REL_BASED_ARM_MOV32 5 /* yes, 5 too */
+#define IMAGE_REL_BASED_RISCV_HI20 5 /* yes, 5 too */
+#define IMAGE_REL_BASED_SECTION 6
+#define IMAGE_REL_BASED_REL 7
+#define IMAGE_REL_BASED_ARM_MOV32T 7 /* yes, 7 too */
+#define IMAGE_REL_BASED_THUMB_MOV32 7 /* yes, 7 too */
+#define IMAGE_REL_BASED_RISCV_LOW12I 7 /* yes, 7 too */
+#define IMAGE_REL_BASED_RISCV_LOW12S 8
+#define IMAGE_REL_BASED_MIPS_JMPADDR16 9
+#define IMAGE_REL_BASED_IA64_IMM64 9 /* yes, 9 too */
+#define IMAGE_REL_BASED_DIR64 10
+#define IMAGE_REL_BASED_HIGH3ADJ 11
+
+struct pe_image {
+ u64 entry;
+ struct resource *code;
+ void *bin;
+
+ u16 image_type;
+ IMAGE_SECTION_HEADER *sections;
+ IMAGE_NT_HEADERS32 *nt;
+ int num_sections;
+};
+
+#ifdef CONFIG_PE
+struct pe_image *pe_open(const char *filename);
+unsigned long pe_get_mem_size(struct pe_image *pe);
+struct pe_image *pe_open_buf(void *bin, size_t pe_size);
+int pe_load(struct pe_image *pe);
+void pe_close(struct pe_image *pe);
+#else
+static inline struct pe_image *pe_open(const char *filename)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline unsigned long pe_get_mem_size(struct pe_image *pe)
+{
+ return 0;
+}
+
+static inline struct pe_image *pe_open_buf(void *bin, size_t pe_size)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline int pe_load(struct pe_image *pe)
+{
+ return -ENOSYS;
+}
+
+static inline void pe_close(struct pe_image *pe)
+{
+}
+#endif
+
+#endif /* _PE_H */
--
2.39.2
