summaryrefslogtreecommitdiffstats
path: root/include/grub/macho.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
commit6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch)
tree32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /include/grub/macho.h
parentInitial commit. (diff)
downloadgrub2-3e86199209a10ed6555e30b8b71884cb7cc45ed2.tar.xz
grub2-3e86199209a10ed6555e30b8b71884cb7cc45ed2.zip
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--include/grub/macho.h166
1 files changed, 166 insertions, 0 deletions
diff --git a/include/grub/macho.h b/include/grub/macho.h
new file mode 100644
index 0000000..2dea625
--- /dev/null
+++ b/include/grub/macho.h
@@ -0,0 +1,166 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2009 Free Software Foundation, Inc.
+ *
+ * GRUB 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.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_MACHO_H
+#define GRUB_MACHO_H 1
+#include <grub/types.h>
+
+/* Multi-architecture header. Always in big-endian. */
+struct grub_macho_fat_header
+{
+ grub_uint32_t magic;
+ grub_uint32_t nfat_arch;
+} GRUB_PACKED;
+
+enum
+ {
+ GRUB_MACHO_CPUTYPE_IA32 = 0x00000007,
+ GRUB_MACHO_CPUTYPE_AMD64 = 0x01000007
+ };
+
+#define GRUB_MACHO_FAT_MAGIC 0xcafebabe
+#define GRUB_MACHO_FAT_EFI_MAGIC 0x0ef1fab9U
+
+typedef grub_uint32_t grub_macho_cpu_type_t;
+typedef grub_uint32_t grub_macho_cpu_subtype_t;
+
+/* Architecture descriptor. Always in big-endian. */
+struct grub_macho_fat_arch
+{
+ grub_macho_cpu_type_t cputype;
+ grub_macho_cpu_subtype_t cpusubtype;
+ grub_uint32_t offset;
+ grub_uint32_t size;
+ grub_uint32_t align;
+} GRUB_PACKED;
+
+/* File header for 32-bit. Always in native-endian. */
+struct grub_macho_header32
+{
+#define GRUB_MACHO_MAGIC32 0xfeedface
+ grub_uint32_t magic;
+ grub_macho_cpu_type_t cputype;
+ grub_macho_cpu_subtype_t cpusubtype;
+ grub_uint32_t filetype;
+ grub_uint32_t ncmds;
+ grub_uint32_t sizeofcmds;
+ grub_uint32_t flags;
+} GRUB_PACKED;
+
+/* File header for 64-bit. Always in native-endian. */
+struct grub_macho_header64
+{
+#define GRUB_MACHO_MAGIC64 0xfeedfacf
+ grub_uint32_t magic;
+ grub_macho_cpu_type_t cputype;
+ grub_macho_cpu_subtype_t cpusubtype;
+ grub_uint32_t filetype;
+ grub_uint32_t ncmds;
+ grub_uint32_t sizeofcmds;
+ grub_uint32_t flags;
+ grub_uint32_t reserved;
+} GRUB_PACKED;
+
+/* Common header of Mach-O commands. */
+struct grub_macho_cmd
+{
+ grub_uint32_t cmd;
+ grub_uint32_t cmdsize;
+} GRUB_PACKED;
+
+typedef grub_uint32_t grub_macho_vmprot_t;
+
+/* 32-bit segment command. */
+struct grub_macho_segment32
+{
+#define GRUB_MACHO_CMD_SEGMENT32 1
+ grub_uint32_t cmd;
+ grub_uint32_t cmdsize;
+ grub_uint8_t segname[16];
+ grub_uint32_t vmaddr;
+ grub_uint32_t vmsize;
+ grub_uint32_t fileoff;
+ grub_uint32_t filesize;
+ grub_macho_vmprot_t maxprot;
+ grub_macho_vmprot_t initprot;
+ grub_uint32_t nsects;
+ grub_uint32_t flags;
+} GRUB_PACKED;
+
+/* 64-bit segment command. */
+struct grub_macho_segment64
+{
+#define GRUB_MACHO_CMD_SEGMENT64 0x19
+ grub_uint32_t cmd;
+ grub_uint32_t cmdsize;
+ grub_uint8_t segname[16];
+ grub_uint64_t vmaddr;
+ grub_uint64_t vmsize;
+ grub_uint64_t fileoff;
+ grub_uint64_t filesize;
+ grub_macho_vmprot_t maxprot;
+ grub_macho_vmprot_t initprot;
+ grub_uint32_t nsects;
+ grub_uint32_t flags;
+} GRUB_PACKED;
+
+#define GRUB_MACHO_CMD_THREAD 5
+
+struct grub_macho_lzss_header
+{
+ char magic[8];
+#define GRUB_MACHO_LZSS_MAGIC "complzss"
+ grub_uint32_t unused;
+ grub_uint32_t uncompressed_size;
+ grub_uint32_t compressed_size;
+};
+
+/* Convenience union. What do we need to load to identify the file type. */
+union grub_macho_filestart
+{
+ struct grub_macho_fat_header fat;
+ struct grub_macho_header32 thin32;
+ struct grub_macho_header64 thin64;
+ struct grub_macho_lzss_header lzss;
+} GRUB_PACKED;
+
+struct grub_macho_thread32
+{
+ grub_uint32_t cmd;
+ grub_uint32_t cmdsize;
+ grub_uint8_t unknown1[48];
+ grub_uint32_t entry_point;
+ grub_uint8_t unknown2[20];
+} GRUB_PACKED;
+
+struct grub_macho_thread64
+{
+ grub_uint32_t cmd;
+ grub_uint32_t cmdsize;
+ grub_uint8_t unknown1[0x88];
+ grub_uint64_t entry_point;
+ grub_uint8_t unknown2[0x20];
+} GRUB_PACKED;
+
+#define GRUB_MACHO_LZSS_OFFSET 0x180
+
+grub_size_t
+grub_decompress_lzss (grub_uint8_t *dst, grub_uint8_t *dstend,
+ grub_uint8_t *src, grub_uint8_t *srcend);
+
+#endif