* Re: loader/efi/appleloader.c
2010-01-04 12:23 ` loader/efi/appleloader.c Vladimir 'φ-coder/phcoder' Serbinenko
@ 2010-01-04 13:10 ` Vladimir 'φ-coder/phcoder' Serbinenko
2010-01-07 19:35 ` loader/efi/appleloader.c Robert Millan
0 siblings, 1 reply; 4+ messages in thread
From: Vladimir 'φ-coder/phcoder' Serbinenko @ 2010-01-04 13:10 UTC (permalink / raw)
To: The development of GNU GRUB
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Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Robert Millan wrote:
>
>> Hi,
>>
>> I've removed loader/efi/appleloader.c, because it contained blobs of
>> binary data. If someone can provide a satisfactory explanation for
>> them, it can be added back. However, this command seems to be seldom
>> needed.
>>
>> Please keep in mind binary blobs or other kind of obfuscated data is not
>> acceptable in GRUB. If it's machine code, we need its source code. If
>> it's a magic signature, we need a comment and/or macro explaining that,
>> etc.
>>
>>
>>
> They are device identifiers in EFI format. E.g. This
> static grub_uint8_t devpath_5[] = {
> 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
> 0x00, 0x40, 0xCB, 0xFF, 0x00, 0x00, 0x00, 0x00,
> 0xFF, 0xBF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
> 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
> 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
> 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
> };
>
> Means MMIO(EfiMemoryMappedIO,
> 0xffcb4000-0xffffbfff)/PIWGVolume(2B0585EB-D8B8-49A9-8B8CE21B01AEF2B7)
> I can add necessary prototypes and structures
>
>
Deblobing patch attached. Binary is the same (checked)
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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=== modified file 'include/grub/efi/api.h'
--- include/grub/efi/api.h 2009-09-03 17:19:59 +0000
+++ include/grub/efi/api.h 2010-01-04 13:07:45 +0000
@@ -584,6 +584,16 @@
};
typedef struct grub_efi_protocol_device_path grub_efi_protocol_device_path_t;
+#define GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE 6
+
+struct grub_efi_piwg_device_path
+{
+ grub_efi_device_path_t header;
+ grub_efi_guid_t guid __attribute__ ((packed));
+};
+typedef struct grub_efi_piwg_device_path grub_efi_piwg_device_path_t;
+
+
/* BIOS Boot Specification Device Path. */
#define GRUB_EFI_BIOS_DEVICE_PATH_TYPE 5
=== modified file 'loader/efi/appleloader.c'
--- loader/efi/appleloader.c 2009-12-25 23:50:59 +0000
+++ loader/efi/appleloader.c 2010-01-04 13:07:45 +0000
@@ -59,58 +59,171 @@
return grub_errno;
}
+struct piwg_full_device_path
+{
+ struct grub_efi_memory_mapped_device_path comp1;
+ struct grub_efi_piwg_device_path comp2;
+ struct grub_efi_device_path end;
+};
+
/* early 2006 Core Duo / Core Solo models */
-static grub_uint8_t devpath_1[] =
+static struct piwg_full_device_path devpath_1 =
{
- 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xFF, 0xF9, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
- 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
- 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
+ .comp1 =
+ {
+ .header = {
+ .type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_memory_mapped_device_path), 0}
+ },
+ .memory_type = GRUB_EFI_MEMORY_MAPPED_IO,
+ .start_address = 0xffe00000,
+ .end_address = 0xfff9ffff
+ },
+ .comp2 =
+ {
+ .header = {
+ .type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_piwg_device_path), 0}
+ },
+ .guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B,
+ 0x01, 0xAE, 0xF2, 0xB7}}
+ },
+ .end =
+ {
+ .type = GRUB_EFI_END_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_device_path), 0}
+ }
};
/* mid-2006 Mac Pro (and probably other Core 2 models) */
-static grub_uint8_t devpath_2[] =
+static struct piwg_full_device_path devpath_2 =
{
- 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xFF, 0xF7, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
- 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
- 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
+ .comp1 =
+ {
+ .header = {
+ .type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_memory_mapped_device_path), 0}
+ },
+ .memory_type = GRUB_EFI_MEMORY_MAPPED_IO,
+ .start_address = 0xffe00000,
+ .end_address = 0xfff7ffff
+ },
+ .comp2 =
+ {
+ .header = {
+ .type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_piwg_device_path), 0}
+ },
+ .guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B,
+ 0x01, 0xAE, 0xF2, 0xB7}}
+ },
+ .end =
+ {
+ .type = GRUB_EFI_END_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_device_path), 0}
+ }
};
/* mid-2007 MBP ("Santa Rosa" based models) */
-static grub_uint8_t devpath_3[] =
+static struct piwg_full_device_path devpath_3 =
{
- 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xFF, 0xF8, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
- 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
- 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
+ .comp1 =
+ {
+ .header = {
+ .type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_memory_mapped_device_path), 0}
+ },
+ .memory_type = GRUB_EFI_MEMORY_MAPPED_IO,
+ .start_address = 0xffe00000,
+ .end_address = 0xfff8ffff
+ },
+ .comp2 =
+ {
+ .header = {
+ .type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_piwg_device_path), 0}
+ },
+ .guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B,
+ 0x01, 0xAE, 0xF2, 0xB7}}
+ },
+ .end =
+ {
+ .type = GRUB_EFI_END_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_device_path), 0}
+ }
};
/* early-2008 MBA */
-static grub_uint8_t devpath_4[] =
+static struct piwg_full_device_path devpath_4 =
{
- 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0xC0, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xFF, 0xF8, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
- 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
- 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
+ .comp1 =
+ {
+ .header = {
+ .type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_memory_mapped_device_path), 0}
+ },
+ .memory_type = GRUB_EFI_MEMORY_MAPPED_IO,
+ .start_address = 0xffc00000,
+ .end_address = 0xfff8ffff
+ },
+ .comp2 =
+ {
+ .header = {
+ .type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_piwg_device_path), 0}
+ },
+ .guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B,
+ 0x01, 0xAE, 0xF2, 0xB7}}
+ },
+ .end =
+ {
+ .type = GRUB_EFI_END_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_device_path), 0}
+ }
};
/* late-2008 MB/MBP (NVidia chipset) */
-static grub_uint8_t devpath_5[] = {
- 0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
- 0x00, 0x40, 0xCB, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xBF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
- 0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
- 0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
- 0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
+static struct piwg_full_device_path devpath_5 =
+{
+ .comp1 =
+ {
+ .header = {
+ .type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_memory_mapped_device_path), 0}
+ },
+ .memory_type = GRUB_EFI_MEMORY_MAPPED_IO,
+ .start_address = 0xffcb4000,
+ .end_address = 0xffffbfff
+ },
+ .comp2 =
+ {
+ .header = {
+ .type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_piwg_device_path), 0}
+ },
+ .guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B,
+ 0x01, 0xAE, 0xF2, 0xB7}}
+ },
+ .end =
+ {
+ .type = GRUB_EFI_END_DEVICE_PATH_TYPE,
+ .subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ .length = {sizeof (struct grub_efi_device_path), 0}
+ }
};
struct devdata
@@ -121,11 +234,11 @@
struct devdata devs[] =
{
- {"Core Duo/Solo", (grub_efi_device_path_t *) devpath_1},
- {"Mac Pro", (grub_efi_device_path_t *) devpath_2},
- {"MBP", (grub_efi_device_path_t *) devpath_3},
- {"MBA", (grub_efi_device_path_t *) devpath_4},
- {"MB NV", (grub_efi_device_path_t *) devpath_5},
+ {"Core Duo/Solo", (grub_efi_device_path_t *) &devpath_1},
+ {"Mac Pro", (grub_efi_device_path_t *) &devpath_2},
+ {"MBP", (grub_efi_device_path_t *) &devpath_3},
+ {"MBA", (grub_efi_device_path_t *) &devpath_4},
+ {"MB NV", (grub_efi_device_path_t *) &devpath_5},
{NULL, NULL},
};
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