mirror of
https://github.com/wiidev/usbloadergx.git
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0f17471b27
*Added sources of the custom libs to the branches *Fixed crash when switching from list layout to grid/carousel layout *Removed 1:1 copy option because its meaningless and almost the same as installing all partitions *Fixed install partition selection. This option needs a reset. Go to settings and reselect your option for this. *Fixed schinese and tchinese language modes (filename bugs. has to be schinese.lang and tchinese.lang like on SVN) *Fixed bug in sound buffer circle *Fixed incorrect behaviour of x-flip when selecting system like (thx Cyan for the patch) *Accept ios revision 65535 for Waninkokos IOSes (thx to PPSainity for pointing it out) *Merged the new theming style branch into trunk. Just as a reminder: ALL old themes will not work until the themers did port it to the new style! *Removed old theme style completely Theme example: The example file of the theme is the Default.them file. It can be found in the SVN trunk. Change in loading of themes: When selecting a theme now a list of all .them files in a folder is displayed. The image folder of that theme has to be in the same folder as the .them file. The image path is defined in the head of the .them file in the line with "Image-Folder: Example\n".
314 lines
11 KiB
C
314 lines
11 KiB
C
/*
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* swapfs.c --- swap ext2 filesystem data structures
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*
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* Copyright (C) 1995, 1996, 2002 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include <stdio.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <time.h>
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#include "ext2_fs.h"
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#include "ext2fs.h"
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#include "ext2_ext_attr.h"
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#ifdef WORDS_BIGENDIAN
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void ext2fs_swap_super(struct ext2_super_block * sb)
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{
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int i;
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sb->s_inodes_count = ext2fs_swab32(sb->s_inodes_count);
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sb->s_blocks_count = ext2fs_swab32(sb->s_blocks_count);
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sb->s_r_blocks_count = ext2fs_swab32(sb->s_r_blocks_count);
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sb->s_free_blocks_count = ext2fs_swab32(sb->s_free_blocks_count);
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sb->s_free_inodes_count = ext2fs_swab32(sb->s_free_inodes_count);
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sb->s_first_data_block = ext2fs_swab32(sb->s_first_data_block);
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sb->s_log_block_size = ext2fs_swab32(sb->s_log_block_size);
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sb->s_log_frag_size = ext2fs_swab32(sb->s_log_frag_size);
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sb->s_blocks_per_group = ext2fs_swab32(sb->s_blocks_per_group);
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sb->s_frags_per_group = ext2fs_swab32(sb->s_frags_per_group);
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sb->s_inodes_per_group = ext2fs_swab32(sb->s_inodes_per_group);
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sb->s_mtime = ext2fs_swab32(sb->s_mtime);
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sb->s_wtime = ext2fs_swab32(sb->s_wtime);
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sb->s_mnt_count = ext2fs_swab16(sb->s_mnt_count);
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sb->s_max_mnt_count = ext2fs_swab16(sb->s_max_mnt_count);
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sb->s_magic = ext2fs_swab16(sb->s_magic);
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sb->s_state = ext2fs_swab16(sb->s_state);
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sb->s_errors = ext2fs_swab16(sb->s_errors);
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sb->s_minor_rev_level = ext2fs_swab16(sb->s_minor_rev_level);
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sb->s_lastcheck = ext2fs_swab32(sb->s_lastcheck);
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sb->s_checkinterval = ext2fs_swab32(sb->s_checkinterval);
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sb->s_creator_os = ext2fs_swab32(sb->s_creator_os);
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sb->s_rev_level = ext2fs_swab32(sb->s_rev_level);
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sb->s_def_resuid = ext2fs_swab16(sb->s_def_resuid);
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sb->s_def_resgid = ext2fs_swab16(sb->s_def_resgid);
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sb->s_first_ino = ext2fs_swab32(sb->s_first_ino);
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sb->s_inode_size = ext2fs_swab16(sb->s_inode_size);
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sb->s_block_group_nr = ext2fs_swab16(sb->s_block_group_nr);
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sb->s_feature_compat = ext2fs_swab32(sb->s_feature_compat);
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sb->s_feature_incompat = ext2fs_swab32(sb->s_feature_incompat);
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sb->s_feature_ro_compat = ext2fs_swab32(sb->s_feature_ro_compat);
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sb->s_algorithm_usage_bitmap = ext2fs_swab32(sb->s_algorithm_usage_bitmap);
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sb->s_reserved_gdt_blocks = ext2fs_swab16(sb->s_reserved_gdt_blocks);
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sb->s_journal_inum = ext2fs_swab32(sb->s_journal_inum);
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sb->s_journal_dev = ext2fs_swab32(sb->s_journal_dev);
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sb->s_last_orphan = ext2fs_swab32(sb->s_last_orphan);
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sb->s_desc_size = ext2fs_swab16(sb->s_desc_size);
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sb->s_default_mount_opts = ext2fs_swab32(sb->s_default_mount_opts);
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sb->s_first_meta_bg = ext2fs_swab32(sb->s_first_meta_bg);
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sb->s_mkfs_time = ext2fs_swab32(sb->s_mkfs_time);
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sb->s_blocks_count_hi = ext2fs_swab32(sb->s_blocks_count_hi);
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sb->s_r_blocks_count_hi = ext2fs_swab32(sb->s_r_blocks_count_hi);
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sb->s_free_blocks_hi = ext2fs_swab32(sb->s_free_blocks_hi);
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sb->s_min_extra_isize = ext2fs_swab16(sb->s_min_extra_isize);
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sb->s_want_extra_isize = ext2fs_swab16(sb->s_want_extra_isize);
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sb->s_flags = ext2fs_swab32(sb->s_flags);
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sb->s_kbytes_written = ext2fs_swab64(sb->s_kbytes_written);
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sb->s_snapshot_inum = ext2fs_swab32(sb->s_snapshot_inum);
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sb->s_snapshot_id = ext2fs_swab32(sb->s_snapshot_id);
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sb->s_snapshot_r_blocks_count =
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ext2fs_swab64(sb->s_snapshot_r_blocks_count);
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sb->s_snapshot_list = ext2fs_swab32(sb->s_snapshot_list);
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for (i=0; i < 4; i++)
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sb->s_hash_seed[i] = ext2fs_swab32(sb->s_hash_seed[i]);
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/* if journal backup is for a valid extent-based journal... */
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if (!ext2fs_extent_header_verify(sb->s_jnl_blocks,
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sizeof(sb->s_jnl_blocks))) {
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/* ... swap only the journal i_size */
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sb->s_jnl_blocks[16] = ext2fs_swab32(sb->s_jnl_blocks[16]);
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/* and the extent data is not swapped on read */
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return;
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}
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/* direct/indirect journal: swap it all */
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for (i=0; i < 17; i++)
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sb->s_jnl_blocks[i] = ext2fs_swab32(sb->s_jnl_blocks[i]);
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}
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void ext2fs_swap_group_desc2(ext2_filsys fs, struct ext2_group_desc *gdp)
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{
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/* Do the 32-bit parts first */
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gdp->bg_block_bitmap = ext2fs_swab32(gdp->bg_block_bitmap);
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gdp->bg_inode_bitmap = ext2fs_swab32(gdp->bg_inode_bitmap);
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gdp->bg_inode_table = ext2fs_swab32(gdp->bg_inode_table);
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gdp->bg_free_blocks_count = ext2fs_swab16(gdp->bg_free_blocks_count);
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gdp->bg_free_inodes_count = ext2fs_swab16(gdp->bg_free_inodes_count);
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gdp->bg_used_dirs_count = ext2fs_swab16(gdp->bg_used_dirs_count);
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gdp->bg_flags = ext2fs_swab16(gdp->bg_flags);
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gdp->bg_itable_unused = ext2fs_swab16(gdp->bg_itable_unused);
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gdp->bg_checksum = ext2fs_swab16(gdp->bg_checksum);
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/* If we're 32-bit, we're done */
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if (fs && (!fs->super->s_desc_size ||
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(fs->super->s_desc_size < EXT2_MIN_DESC_SIZE_64BIT)))
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return;
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/* Swap the 64-bit parts */
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struct ext4_group_desc *gdp4 = (struct ext4_group_desc *) gdp;
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gdp4->bg_block_bitmap_hi = ext2fs_swab32(gdp4->bg_block_bitmap_hi);
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gdp4->bg_inode_bitmap_hi = ext2fs_swab32(gdp4->bg_inode_bitmap_hi);
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gdp4->bg_inode_table_hi = ext2fs_swab32(gdp4->bg_inode_table_hi);
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gdp4->bg_free_blocks_count_hi =
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ext2fs_swab16(gdp4->bg_free_blocks_count_hi);
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gdp4->bg_free_inodes_count_hi =
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ext2fs_swab16(gdp4->bg_free_inodes_count_hi);
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gdp4->bg_used_dirs_count_hi =
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ext2fs_swab16(gdp4->bg_used_dirs_count_hi);
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gdp4->bg_itable_unused_hi = ext2fs_swab16(gdp4->bg_itable_unused_hi);
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}
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void ext2fs_swap_group_desc(struct ext2_group_desc *gdp)
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{
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return ext2fs_swap_group_desc2(0, gdp);
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}
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void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
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struct ext2_ext_attr_header *from_header)
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{
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int n;
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to_header->h_magic = ext2fs_swab32(from_header->h_magic);
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to_header->h_blocks = ext2fs_swab32(from_header->h_blocks);
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to_header->h_refcount = ext2fs_swab32(from_header->h_refcount);
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to_header->h_hash = ext2fs_swab32(from_header->h_hash);
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for (n = 0; n < 4; n++)
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to_header->h_reserved[n] =
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ext2fs_swab32(from_header->h_reserved[n]);
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}
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void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
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struct ext2_ext_attr_entry *from_entry)
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{
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to_entry->e_value_offs = ext2fs_swab16(from_entry->e_value_offs);
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to_entry->e_value_block = ext2fs_swab32(from_entry->e_value_block);
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to_entry->e_value_size = ext2fs_swab32(from_entry->e_value_size);
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to_entry->e_hash = ext2fs_swab32(from_entry->e_hash);
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}
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void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, int has_header)
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{
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struct ext2_ext_attr_header *from_header =
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(struct ext2_ext_attr_header *)from;
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struct ext2_ext_attr_header *to_header =
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(struct ext2_ext_attr_header *)to;
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struct ext2_ext_attr_entry *from_entry, *to_entry;
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char *from_end = (char *)from_header + bufsize;
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if (to_header != from_header)
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memcpy(to_header, from_header, bufsize);
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if (has_header) {
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ext2fs_swap_ext_attr_header(to_header, from_header);
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from_entry = (struct ext2_ext_attr_entry *)(from_header+1);
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to_entry = (struct ext2_ext_attr_entry *)(to_header+1);
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} else {
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from_entry = (struct ext2_ext_attr_entry *)from_header;
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to_entry = (struct ext2_ext_attr_entry *)to_header;
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}
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while ((char *)from_entry < from_end && *(__u32 *)from_entry) {
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ext2fs_swap_ext_attr_entry(to_entry, from_entry);
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from_entry = EXT2_EXT_ATTR_NEXT(from_entry);
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to_entry = EXT2_EXT_ATTR_NEXT(to_entry);
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}
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}
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void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
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struct ext2_inode_large *f, int hostorder,
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int bufsize)
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{
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unsigned i, has_data_blocks = 0, extra_isize = 0, attr_magic = 0;
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int has_extents = 0;
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int islnk = 0;
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__u32 *eaf, *eat;
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if (hostorder && LINUX_S_ISLNK(f->i_mode))
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islnk = 1;
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t->i_mode = ext2fs_swab16(f->i_mode);
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if (!hostorder && LINUX_S_ISLNK(t->i_mode))
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islnk = 1;
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t->i_uid = ext2fs_swab16(f->i_uid);
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t->i_size = ext2fs_swab32(f->i_size);
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t->i_atime = ext2fs_swab32(f->i_atime);
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t->i_ctime = ext2fs_swab32(f->i_ctime);
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t->i_mtime = ext2fs_swab32(f->i_mtime);
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t->i_dtime = ext2fs_swab32(f->i_dtime);
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t->i_gid = ext2fs_swab16(f->i_gid);
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t->i_links_count = ext2fs_swab16(f->i_links_count);
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t->i_file_acl = ext2fs_swab32(f->i_file_acl);
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if (hostorder)
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has_data_blocks = ext2fs_inode_data_blocks(fs,
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(struct ext2_inode *) f);
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t->i_blocks = ext2fs_swab32(f->i_blocks);
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if (!hostorder)
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has_data_blocks = ext2fs_inode_data_blocks(fs,
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(struct ext2_inode *) t);
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if (hostorder && (f->i_flags & EXT4_EXTENTS_FL))
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has_extents = 1;
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t->i_flags = ext2fs_swab32(f->i_flags);
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if (!hostorder && (t->i_flags & EXT4_EXTENTS_FL))
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has_extents = 1;
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t->i_dir_acl = ext2fs_swab32(f->i_dir_acl);
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/* extent data are swapped on access, not here */
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if (!has_extents && (!islnk || has_data_blocks)) {
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for (i = 0; i < EXT2_N_BLOCKS; i++)
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t->i_block[i] = ext2fs_swab32(f->i_block[i]);
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} else if (t != f) {
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for (i = 0; i < EXT2_N_BLOCKS; i++)
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t->i_block[i] = f->i_block[i];
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}
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t->i_generation = ext2fs_swab32(f->i_generation);
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t->i_faddr = ext2fs_swab32(f->i_faddr);
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switch (fs->super->s_creator_os) {
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case EXT2_OS_LINUX:
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t->osd1.linux1.l_i_version =
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ext2fs_swab32(f->osd1.linux1.l_i_version);
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t->osd2.linux2.l_i_blocks_hi =
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ext2fs_swab16(f->osd2.linux2.l_i_blocks_hi);
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t->osd2.linux2.l_i_file_acl_high =
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ext2fs_swab16(f->osd2.linux2.l_i_file_acl_high);
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t->osd2.linux2.l_i_uid_high =
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ext2fs_swab16 (f->osd2.linux2.l_i_uid_high);
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t->osd2.linux2.l_i_gid_high =
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ext2fs_swab16 (f->osd2.linux2.l_i_gid_high);
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t->osd2.linux2.l_i_reserved2 =
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ext2fs_swab32(f->osd2.linux2.l_i_reserved2);
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break;
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case EXT2_OS_HURD:
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t->osd1.hurd1.h_i_translator =
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ext2fs_swab32 (f->osd1.hurd1.h_i_translator);
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t->osd2.hurd2.h_i_frag = f->osd2.hurd2.h_i_frag;
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t->osd2.hurd2.h_i_fsize = f->osd2.hurd2.h_i_fsize;
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t->osd2.hurd2.h_i_mode_high =
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ext2fs_swab16 (f->osd2.hurd2.h_i_mode_high);
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t->osd2.hurd2.h_i_uid_high =
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ext2fs_swab16 (f->osd2.hurd2.h_i_uid_high);
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t->osd2.hurd2.h_i_gid_high =
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ext2fs_swab16 (f->osd2.hurd2.h_i_gid_high);
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t->osd2.hurd2.h_i_author =
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ext2fs_swab32 (f->osd2.hurd2.h_i_author);
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break;
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default:
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break;
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}
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if (bufsize < (int) (sizeof(struct ext2_inode) + sizeof(__u16)))
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return; /* no i_extra_isize field */
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if (hostorder)
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extra_isize = f->i_extra_isize;
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t->i_extra_isize = ext2fs_swab16(f->i_extra_isize);
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if (!hostorder)
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extra_isize = t->i_extra_isize;
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if (extra_isize > EXT2_INODE_SIZE(fs->super) -
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sizeof(struct ext2_inode)) {
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/* this is error case: i_extra_size is too large */
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return;
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}
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i = sizeof(struct ext2_inode) + extra_isize + sizeof(__u32);
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if (bufsize < (int) i)
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return; /* no space for EA magic */
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eaf = (__u32 *) (((char *) f) + sizeof(struct ext2_inode) +
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extra_isize);
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attr_magic = *eaf;
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if (!hostorder)
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attr_magic = ext2fs_swab32(attr_magic);
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if (attr_magic != EXT2_EXT_ATTR_MAGIC)
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return; /* it seems no magic here */
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eat = (__u32 *) (((char *) t) + sizeof(struct ext2_inode) +
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extra_isize);
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*eat = ext2fs_swab32(*eaf);
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/* convert EA(s) */
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ext2fs_swap_ext_attr((char *) (eat + 1), (char *) (eaf + 1),
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bufsize - sizeof(struct ext2_inode) -
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extra_isize - sizeof(__u32), 0);
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}
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void ext2fs_swap_inode(ext2_filsys fs, struct ext2_inode *t,
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struct ext2_inode *f, int hostorder)
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{
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ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) t,
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(struct ext2_inode_large *) f, hostorder,
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sizeof(struct ext2_inode));
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}
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#endif
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