diff options
Diffstat (limited to 'e2fsprogs/old_e2fsprogs/ext2fs/swapfs.c')
| -rw-r--r-- | e2fsprogs/old_e2fsprogs/ext2fs/swapfs.c | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/swapfs.c b/e2fsprogs/old_e2fsprogs/ext2fs/swapfs.c deleted file mode 100644 index 07b757abd..000000000 --- a/e2fsprogs/old_e2fsprogs/ext2fs/swapfs.c +++ /dev/null @@ -1,234 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * swapfs.c --- swap ext2 filesystem data structures - * - * Copyright (C) 1995, 1996, 2002 Theodore Ts'o. - * - * %Begin-Header% - * This file may be redistributed under the terms of the GNU Public - * License. - * %End-Header% - */ - -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <time.h> - -#include "ext2_fs.h" -#include "ext2fs.h" -#include "ext2_ext_attr.h" - -#if BB_BIG_ENDIAN -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_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); - 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_group_desc(struct ext2_group_desc *gdp) -{ - gdp->bg_block_bitmap = ext2fs_swab32(gdp->bg_block_bitmap); - gdp->bg_inode_bitmap = ext2fs_swab32(gdp->bg_inode_bitmap); - gdp->bg_inode_table = ext2fs_swab32(gdp->bg_inode_table); - gdp->bg_free_blocks_count = ext2fs_swab16(gdp->bg_free_blocks_count); - gdp->bg_free_inodes_count = ext2fs_swab16(gdp->bg_free_inodes_count); - gdp->bg_used_dirs_count = ext2fs_swab16(gdp->bg_used_dirs_count); -} - -void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, int has_header) -{ - struct ext2_ext_attr_header *from_header = - (struct ext2_ext_attr_header *)from; - struct ext2_ext_attr_header *to_header = - (struct ext2_ext_attr_header *)to; - struct ext2_ext_attr_entry *from_entry, *to_entry; - char *from_end = (char *)from_header + bufsize; - int n; - - if (to_header != from_header) - memcpy(to_header, from_header, bufsize); - - from_entry = (struct ext2_ext_attr_entry *)from_header; - to_entry = (struct ext2_ext_attr_entry *)to_header; - - if (has_header) { - to_header->h_magic = ext2fs_swab32(from_header->h_magic); - to_header->h_blocks = ext2fs_swab32(from_header->h_blocks); - to_header->h_refcount = ext2fs_swab32(from_header->h_refcount); - for (n=0; n<4; n++) - to_header->h_reserved[n] = - ext2fs_swab32(from_header->h_reserved[n]); - from_entry = (struct ext2_ext_attr_entry *)(from_header+1); - to_entry = (struct ext2_ext_attr_entry *)(to_header+1); - } - - while ((char *)from_entry < from_end && *(__u32 *)from_entry) { - to_entry->e_value_offs = - ext2fs_swab16(from_entry->e_value_offs); - to_entry->e_value_block = - ext2fs_swab32(from_entry->e_value_block); - to_entry->e_value_size = - ext2fs_swab32(from_entry->e_value_size); - from_entry = EXT2_EXT_ATTR_NEXT(from_entry); - to_entry = EXT2_EXT_ATTR_NEXT(to_entry); - } -} - -void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t, - struct ext2_inode_large *f, int hostorder, - int bufsize) -{ - unsigned i; - int islnk = 0; - __u32 *eaf, *eat; - - if (hostorder && LINUX_S_ISLNK(f->i_mode)) - islnk = 1; - t->i_mode = ext2fs_swab16(f->i_mode); - if (!hostorder && LINUX_S_ISLNK(t->i_mode)) - islnk = 1; - t->i_uid = ext2fs_swab16(f->i_uid); - t->i_size = ext2fs_swab32(f->i_size); - t->i_atime = ext2fs_swab32(f->i_atime); - t->i_ctime = ext2fs_swab32(f->i_ctime); - t->i_mtime = ext2fs_swab32(f->i_mtime); - t->i_dtime = ext2fs_swab32(f->i_dtime); - t->i_gid = ext2fs_swab16(f->i_gid); - t->i_links_count = ext2fs_swab16(f->i_links_count); - t->i_blocks = ext2fs_swab32(f->i_blocks); - t->i_flags = ext2fs_swab32(f->i_flags); - t->i_file_acl = ext2fs_swab32(f->i_file_acl); - t->i_dir_acl = ext2fs_swab32(f->i_dir_acl); - if (!islnk || ext2fs_inode_data_blocks(fs, (struct ext2_inode *)t)) { - for (i = 0; i < EXT2_N_BLOCKS; i++) - t->i_block[i] = ext2fs_swab32(f->i_block[i]); - } else if (t != f) { - for (i = 0; i < EXT2_N_BLOCKS; i++) - t->i_block[i] = f->i_block[i]; - } - t->i_generation = ext2fs_swab32(f->i_generation); - t->i_faddr = ext2fs_swab32(f->i_faddr); - - switch (fs->super->s_creator_os) { - case EXT2_OS_LINUX: - t->osd1.linux1.l_i_reserved1 = - ext2fs_swab32(f->osd1.linux1.l_i_reserved1); - t->osd2.linux2.l_i_frag = f->osd2.linux2.l_i_frag; - t->osd2.linux2.l_i_fsize = f->osd2.linux2.l_i_fsize; - t->osd2.linux2.i_pad1 = ext2fs_swab16(f->osd2.linux2.i_pad1); - t->osd2.linux2.l_i_uid_high = - ext2fs_swab16 (f->osd2.linux2.l_i_uid_high); - t->osd2.linux2.l_i_gid_high = - ext2fs_swab16 (f->osd2.linux2.l_i_gid_high); - t->osd2.linux2.l_i_reserved2 = - ext2fs_swab32(f->osd2.linux2.l_i_reserved2); - break; - case EXT2_OS_HURD: - t->osd1.hurd1.h_i_translator = - ext2fs_swab32 (f->osd1.hurd1.h_i_translator); - t->osd2.hurd2.h_i_frag = f->osd2.hurd2.h_i_frag; - t->osd2.hurd2.h_i_fsize = f->osd2.hurd2.h_i_fsize; - t->osd2.hurd2.h_i_mode_high = - ext2fs_swab16 (f->osd2.hurd2.h_i_mode_high); - t->osd2.hurd2.h_i_uid_high = - ext2fs_swab16 (f->osd2.hurd2.h_i_uid_high); - t->osd2.hurd2.h_i_gid_high = - ext2fs_swab16 (f->osd2.hurd2.h_i_gid_high); - t->osd2.hurd2.h_i_author = - ext2fs_swab32 (f->osd2.hurd2.h_i_author); - break; - case EXT2_OS_MASIX: - t->osd1.masix1.m_i_reserved1 = - ext2fs_swab32(f->osd1.masix1.m_i_reserved1); - t->osd2.masix2.m_i_frag = f->osd2.masix2.m_i_frag; - t->osd2.masix2.m_i_fsize = f->osd2.masix2.m_i_fsize; - t->osd2.masix2.m_pad1 = ext2fs_swab16(f->osd2.masix2.m_pad1); - t->osd2.masix2.m_i_reserved2[0] = - ext2fs_swab32(f->osd2.masix2.m_i_reserved2[0]); - t->osd2.masix2.m_i_reserved2[1] = - ext2fs_swab32(f->osd2.masix2.m_i_reserved2[1]); - break; - } - - if (bufsize < (int) (sizeof(struct ext2_inode) + sizeof(__u16))) - return; /* no i_extra_isize field */ - - t->i_extra_isize = ext2fs_swab16(f->i_extra_isize); - if (t->i_extra_isize > EXT2_INODE_SIZE(fs->super) - - sizeof(struct ext2_inode)) { - /* this is error case: i_extra_size is too large */ - return; - } - - i = sizeof(struct ext2_inode) + t->i_extra_isize + sizeof(__u32); - if (bufsize < (int) i) - return; /* no space for EA magic */ - - eaf = (__u32 *) (((char *) f) + sizeof(struct ext2_inode) + - f->i_extra_isize); - - if (ext2fs_swab32(*eaf) != EXT2_EXT_ATTR_MAGIC) - return; /* it seems no magic here */ - - eat = (__u32 *) (((char *) t) + sizeof(struct ext2_inode) + - f->i_extra_isize); - *eat = ext2fs_swab32(*eaf); - - /* convert EA(s) */ - ext2fs_swap_ext_attr((char *) (eat + 1), (char *) (eaf + 1), - bufsize - sizeof(struct ext2_inode) - - t->i_extra_isize - sizeof(__u32), 0); -} - -void ext2fs_swap_inode(ext2_filsys fs, struct ext2_inode *t, - struct ext2_inode *f, int hostorder) -{ - ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) t, - (struct ext2_inode_large *) f, hostorder, - sizeof(struct ext2_inode)); -} - -#endif |