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BtrFS support. Written by me (Vladimir) with important bugfixes and

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even more important testing by Colin.

	* Makefile.util.def (libgrubmods.a): Add crc.c and gzio.c
	* grub-core/Makefile.core.def (btrfs): Add crc.c.
	* grub-core/fs/btrfs.c: Stub replaced with real implementation.
	* grub-core/io/gzio.c (grub_gzio): New fields mem_input_size,
	mem_input_off and mem_input. All users updated to accept in-RAM input.
	(gzio_seek): New function.
	(test_zlib_header): Likewise.
	(grub_gzio_read): Likewise.
	(grub_zlib_decompress): Likewise.
	* grub-core/kern/emu/getroot.c (grub_find_root_device_from_mountinfo):
	Accept partial and non-virtual mounts.
	(grub_guess_root_device): Do rescanning after device_from_mountinfo to
	avoid receiving /dev/dm-X as device.
	* grub-core/kern/emu/misc.c (grub_make_system_path_relative_to_its_root):
	Handle bind and partial mounts.
	* grub-core/lib/crc.c: New file.
	* include/grub/deflate.h: Likewise.
	* include/grub/emu/misc.h (grub_find_root_device_from_mountinfo): New
	proto.
	* include/grub/lib/crc.h: New file.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-04-11 23:26:41 +02:00
commit fe6b2cbaa6
11 changed files with 1711 additions and 100 deletions
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26
include/grub/deflate.h Normal file
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@ -0,0 +1,26 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 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_DEFLATE_HEADER
#define GRUB_DEFLATE_HEADER 1
grub_ssize_t
grub_zlib_decompress (char *inbuf, grub_size_t insize, grub_off_t off,
char *outbuf, grub_size_t outsize);
#endif

2
include/grub/emu/misc.h
View file

@ -78,4 +78,6 @@ extern char * canonicalize_file_name (const char *path);
int grub_device_mapper_supported (void);
#endif
char *grub_find_root_device_from_mountinfo (const char *dir, char **relroot);
#endif /* GRUB_EMU_MISC_H */

25
include/grub/lib/crc.h Normal file
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@ -0,0 +1,25 @@
/* crc.h - prototypes for crc */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 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_CRC_H
#define GRUB_CRC_H 1
grub_uint32_t grub_getcrc32c (grub_uint32_t crc, const void *buf, int size);
#endif /* ! GRUB_CRC_H */