void ext2fs_swap_mmp(struct mmp_struct *mmp)
{
mmp->mmp_magic = ext2fs_swab32(mmp->mmp_magic);
mmp->mmp_seq = ext2fs_swab32(mmp->mmp_seq);
mmp->mmp_time = ext2fs_swab64(mmp->mmp_time);
mmp->mmp_check_interval = ext2fs_swab16(mmp->mmp_check_interval);
}
void ext2fs_swap_super(struct ext2_super_block * sb)
{
int i;
sb->s_inodes_count = ext2fs_swab32(sb->s_inodes_count);
sb->s_blocks_count = ext2fs_swab32(sb->s_blocks_count);
sb->s_r_blocks_count = ext2fs_swab32(sb->s_r_blocks_count);
sb->s_free_blocks_count = ext2fs_swab32(sb->s_free_blocks_count);
sb->s_free_inodes_count = ext2fs_swab32(sb->s_free_inodes_count);
sb->s_first_data_block = ext2fs_swab32(sb->s_first_data_block);
sb->s_log_block_size = ext2fs_swab32(sb->s_log_block_size);
sb->s_log_frag_size = ext2fs_swab32(sb->s_log_frag_size);
sb->s_blocks_per_group = ext2fs_swab32(sb->s_blocks_per_group);
sb->s_frags_per_group = ext2fs_swab32(sb->s_frags_per_group);
sb->s_inodes_per_group = ext2fs_swab32(sb->s_inodes_per_group);
sb->s_mtime = ext2fs_swab32(sb->s_mtime);
sb->s_wtime = ext2fs_swab32(sb->s_wtime);
sb->s_mnt_count = ext2fs_swab16(sb->s_mnt_count);
sb->s_max_mnt_count = ext2fs_swab16(sb->s_max_mnt_count);
sb->s_magic = ext2fs_swab16(sb->s_magic);
sb->s_state = ext2fs_swab16(sb->s_state);
sb->s_errors = ext2fs_swab16(sb->s_errors);
sb->s_minor_rev_level = ext2fs_swab16(sb->s_minor_rev_level);
sb->s_lastcheck = ext2fs_swab32(sb->s_lastcheck);
sb->s_checkinterval = ext2fs_swab32(sb->s_checkinterval);
sb->s_creator_os = ext2fs_swab32(sb->s_creator_os);
sb->s_rev_level = ext2fs_swab32(sb->s_rev_level);
sb->s_def_resuid = ext2fs_swab16(sb->s_def_resuid);
sb->s_def_resgid = ext2fs_swab16(sb->s_def_resgid);
sb->s_first_ino = ext2fs_swab32(sb->s_first_ino);
sb->s_inode_size = ext2fs_swab16(sb->s_inode_size);
sb->s_block_group_nr = ext2fs_swab16(sb->s_block_group_nr);
sb->s_feature_compat = ext2fs_swab32(sb->s_feature_compat);
sb->s_feature_incompat = ext2fs_swab32(sb->s_feature_incompat);
sb->s_feature_ro_compat = ext2fs_swab32(sb->s_feature_ro_compat);
sb->s_algorithm_usage_bitmap = ext2fs_swab32(sb->s_algorithm_usage_bitmap);
sb->s_reserved_gdt_blocks = ext2fs_swab16(sb->s_reserved_gdt_blocks);
sb->s_journal_inum = ext2fs_swab32(sb->s_journal_inum);
sb->s_journal_dev = ext2fs_swab32(sb->s_journal_dev);
sb->s_last_orphan = ext2fs_swab32(sb->s_last_orphan);
sb->s_desc_size = ext2fs_swab16(sb->s_desc_size);
sb->s_default_mount_opts = ext2fs_swab32(sb->s_default_mount_opts);
sb->s_first_meta_bg = ext2fs_swab32(sb->s_first_meta_bg);
sb->s_mkfs_time = ext2fs_swab32(sb->s_mkfs_time);
sb->s_blocks_count_hi = ext2fs_swab32(sb->s_blocks_count_hi);
sb->s_r_blocks_count_hi = ext2fs_swab32(sb->s_r_blocks_count_hi);
sb->s_free_blocks_hi = ext2fs_swab32(sb->s_free_blocks_hi);
sb->s_min_extra_isize = ext2fs_swab16(sb->s_min_extra_isize);
sb->s_want_extra_isize = ext2fs_swab16(sb->s_want_extra_isize);
sb->s_flags = ext2fs_swab32(sb->s_flags);
sb->s_kbytes_written = ext2fs_swab64(sb->s_kbytes_written);
for (i=0; i < 4; i++)
sb->s_hash_seed[i] = ext2fs_swab32(sb->s_hash_seed[i]);
for (i=0; i < 17; i++)
sb->s_jnl_blocks[i] = ext2fs_swab32(sb->s_jnl_blocks[i]);
}
void ext2fs_swap_super(struct ext2_super_block * sb)
{
int i;
sb->s_inodes_count = ext2fs_swab32(sb->s_inodes_count);
sb->s_blocks_count = ext2fs_swab32(sb->s_blocks_count);
sb->s_r_blocks_count = ext2fs_swab32(sb->s_r_blocks_count);
sb->s_free_blocks_count = ext2fs_swab32(sb->s_free_blocks_count);
sb->s_free_inodes_count = ext2fs_swab32(sb->s_free_inodes_count);
sb->s_first_data_block = ext2fs_swab32(sb->s_first_data_block);
sb->s_log_block_size = ext2fs_swab32(sb->s_log_block_size);
sb->s_log_frag_size = ext2fs_swab32(sb->s_log_frag_size);
sb->s_blocks_per_group = ext2fs_swab32(sb->s_blocks_per_group);
sb->s_frags_per_group = ext2fs_swab32(sb->s_frags_per_group);
sb->s_inodes_per_group = ext2fs_swab32(sb->s_inodes_per_group);
sb->s_mtime = ext2fs_swab32(sb->s_mtime);
sb->s_wtime = ext2fs_swab32(sb->s_wtime);
sb->s_mnt_count = ext2fs_swab16(sb->s_mnt_count);
sb->s_max_mnt_count = ext2fs_swab16(sb->s_max_mnt_count);
sb->s_magic = ext2fs_swab16(sb->s_magic);
sb->s_state = ext2fs_swab16(sb->s_state);
sb->s_errors = ext2fs_swab16(sb->s_errors);
sb->s_minor_rev_level = ext2fs_swab16(sb->s_minor_rev_level);
sb->s_lastcheck = ext2fs_swab32(sb->s_lastcheck);
sb->s_checkinterval = ext2fs_swab32(sb->s_checkinterval);
sb->s_creator_os = ext2fs_swab32(sb->s_creator_os);
sb->s_rev_level = ext2fs_swab32(sb->s_rev_level);
sb->s_def_resuid = ext2fs_swab16(sb->s_def_resuid);
sb->s_def_resgid = ext2fs_swab16(sb->s_def_resgid);
sb->s_first_ino = ext2fs_swab32(sb->s_first_ino);
sb->s_inode_size = ext2fs_swab16(sb->s_inode_size);
sb->s_block_group_nr = ext2fs_swab16(sb->s_block_group_nr);
sb->s_feature_compat = ext2fs_swab32(sb->s_feature_compat);
sb->s_feature_incompat = ext2fs_swab32(sb->s_feature_incompat);
sb->s_feature_ro_compat = ext2fs_swab32(sb->s_feature_ro_compat);
sb->s_algorithm_usage_bitmap = ext2fs_swab32(sb->s_algorithm_usage_bitmap);
sb->s_reserved_gdt_blocks = ext2fs_swab16(sb->s_reserved_gdt_blocks);
sb->s_journal_inum = ext2fs_swab32(sb->s_journal_inum);
sb->s_journal_dev = ext2fs_swab32(sb->s_journal_dev);
sb->s_last_orphan = ext2fs_swab32(sb->s_last_orphan);
sb->s_desc_size = ext2fs_swab16(sb->s_desc_size);
sb->s_default_mount_opts = ext2fs_swab32(sb->s_default_mount_opts);
sb->s_first_meta_bg = ext2fs_swab32(sb->s_first_meta_bg);
sb->s_mkfs_time = ext2fs_swab32(sb->s_mkfs_time);
sb->s_blocks_count_hi = ext2fs_swab32(sb->s_blocks_count_hi);
sb->s_r_blocks_count_hi = ext2fs_swab32(sb->s_r_blocks_count_hi);
sb->s_free_blocks_hi = ext2fs_swab32(sb->s_free_blocks_hi);
sb->s_min_extra_isize = ext2fs_swab16(sb->s_min_extra_isize);
sb->s_want_extra_isize = ext2fs_swab16(sb->s_want_extra_isize);
sb->s_flags = ext2fs_swab32(sb->s_flags);
sb->s_kbytes_written = ext2fs_swab64(sb->s_kbytes_written);
for (i=0; i < 4; i++)
sb->s_hash_seed[i] = ext2fs_swab32(sb->s_hash_seed[i]);
/* if journal backup is for a valid extent-based journal... */
if (!ext2fs_extent_header_verify(sb->s_jnl_blocks,
sizeof(sb->s_jnl_blocks))) {
/* ... swap only the journal i_size */
sb->s_jnl_blocks[16] = ext2fs_swab32(sb->s_jnl_blocks[16]);
/* and the extent data is not swapped on read */
return;
}
/* direct/indirect journal: swap it all */
for (i=0; i < 17; i++)
sb->s_jnl_blocks[i] = ext2fs_swab32(sb->s_jnl_blocks[i]);
}