162 lines
5.4 KiB
Diff
162 lines
5.4 KiB
Diff
From 1b807419bd99382cfeb9584ab7e8c10a0e416c5d Mon Sep 17 00:00:00 2001
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From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
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Date: Fri, 27 Mar 2015 08:09:58 -0700
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Subject: [PATCH] shim: add needed data structures
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Upstream-Status: Inappropriate [embedded specific]
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Add the needed data structures for shim to load, parse, relocate and
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execute a binary. This includes file-parsing structures, an identifier for
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the UEFI protocol for image verification under secure boot provided by shim.
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Shim is thin loader developed by Matthew Garret
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(https://github.com/rhinstaller/shim). This code was ported from such project.
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Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
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---
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include/grub/efi/shim.h | 132 ++++++++++++++++++++++++++++++++++++++++
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1 file changed, 132 insertions(+)
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create mode 100644 include/grub/efi/shim.h
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diff --git a/include/grub/efi/shim.h b/include/grub/efi/shim.h
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new file mode 100644
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index 0000000..4b92a00
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--- /dev/null
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+++ b/include/grub/efi/shim.h
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@@ -0,0 +1,132 @@
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+/*
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+ * shim.h - interface to shim: UEFI first-stage bootloader
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+ *
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+ * Copyright 2015 Intel Corporation.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ *
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+ * Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ *
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+ * Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the
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+ * distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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+ * OF THE POSSIBILITY OF SUCH DAMAGE.
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+ *
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+ * Significant portions of this code are derived from Red Hat shim: UEFI
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+ * first-stage bootloader.
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+ * (https://github.com/rhinstaller/shim) and are Copyright 2012 Red Hat, Inc
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+ */
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+
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+#ifndef GRUB_SHIM_HEADER
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+#define GRUB_SHIM_HEADER 1
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+
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+#include <grub/efi/pe32.h>
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+
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+struct grub_nt_headers32
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+{
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+ grub_efi_uint32_t signature;
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+ struct grub_pe32_coff_header file_hdr;
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+ struct grub_pe32_optional_header opt_hdr;
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+};
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+
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+struct grub_nt_headers64
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+{
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+ grub_efi_uint32_t signature;
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+ struct grub_pe32_coff_header file_hdr;
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+ struct grub_pe64_optional_header opt_hdr;
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+};
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+
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+struct grub_image_base_relocation
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+{
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+ grub_efi_uint32_t virtual_address;
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+ grub_efi_uint32_t block_size;
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+};
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+
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+struct grub_shim_pe_coff_loader_image_context {
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+ grub_efi_uint64_t image_address;
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+ grub_efi_uint64_t image_size;
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+ grub_efi_uint64_t entry_point;
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+ grub_efi_uintn_t header_size;
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+ grub_efi_uint16_t image_type;
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+ grub_efi_uint16_t num_sections;
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+ struct grub_pe32_section_table *first_section;
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+ struct grub_pe32_data_directory *reloc_dir;
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+ struct grub_pe32_data_directory *sec_dir;
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+ grub_efi_uint64_t number_of_rva_and_sizes;
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+ union grub_shim_optional_header_union *pe_hdr;
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+};
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+
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+struct grub_shim_lock
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+{
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+ grub_efi_status_t
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+ (*verify) (void *buffer,
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+ grub_uint32_t size);
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+
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+ grub_efi_status_t
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+ (*hash) (grub_int8_t *data,
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+ grub_int32_t datasize,
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+ struct grub_shim_pe_coff_loader_image_context *context,
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+ grub_uint8_t sha256hash,
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+ grub_uint8_t sha1hash);
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+
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+ grub_efi_status_t
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+ (*context) (void *data,
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+ grub_uint32_t datasize,
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+ struct grub_shim_pe_coff_loader_image_context *context);
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+};
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+
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+union grub_shim_optional_header_union
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+{
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+ struct grub_nt_headers32 pe32;
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+ struct grub_nt_headers64 pe32plus;
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+ struct grub_te_header te;
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+};
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+
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+#define GRUB_EFI_SHIM_PROTOCOL_GUID \
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+ { 0x605dab50, 0xe046, 0x4300, \
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+ { 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23 } \
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+ }
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+
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+#define SIGNATURE_16(A, B) ((A) | (B << 8))
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+#define SIGNATURE_32(A, B, C, D) (SIGNATURE_16 (A, B) | (SIGNATURE_16 (C, D) << 16))
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+
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+#define EFI_IMAGE_DOS_SIGNATURE SIGNATURE_16('M', 'Z')
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+#define EFI_IMAGE_NT_SIGNATURE SIGNATURE_32('P', 'E', '\0', '\0')
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+
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+#define EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC 5
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+
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+#define ALIGN_VALUE(Value, Alignment) ((Value) + (((Alignment) - (Value)) & ((Alignment) - 1)))
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+#define ALIGN_POINTER(Pointer, Alignment) ((void *) (ALIGN_VALUE ((grub_efi_uintn_t)(Pointer), (Alignment))))
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+
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+/* Based relocation types. */
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+
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+#define EFI_IMAGE_REL_BASED_ABSOLUTE 0
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+#define EFI_IMAGE_REL_BASED_HIGH 1
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+#define EFI_IMAGE_REL_BASED_LOW 2
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+#define EFI_IMAGE_REL_BASED_HIGHLOW 3
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+#define EFI_IMAGE_REL_BASED_HIGHADJ 4
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+#define EFI_IMAGE_REL_BASED_MIPS_JMPADDR 5
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+#define EFI_IMAGE_REL_BASED_ARM_MOV32A 5
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+#define EFI_IMAGE_REL_BASED_ARM_MOV32T 7
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+#define EFI_IMAGE_REL_BASED_IA64_IMM64 9
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+#define EFI_IMAGE_REL_BASED_MIPS_JMPADDR16 9
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+#define EFI_IMAGE_REL_BASED_DIR64 10
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+
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+
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+#endif /* ! GRUB_SHIM_HEADER */
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--
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2.17.1
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