src/file_xfs.c: add Frama-C annotations
src/xfs_struct.h: move structure from src/xfs.h
This commit is contained in:
Christophe Grenier
parent
2a20bac9f1
commit
160350774f
4 changed files with 183 additions and 123 deletions
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@ -42,7 +42,7 @@ base_C = $(smallbase_C) autoset.c ewf.c fnctdsk.c hdaccess.c hdcache.c hdwin32
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base_H = $(smallbase_H) alignio.h autoset.h ewf.h fnctdsk.h hdaccess.h hdwin32.h hidden.h guid_cmp.h guid_cpy.h hdcache.h hpa_dco.h intrf.h iso.h iso9660.h lang.h list.h list_sort.h log_part.h types.h io_redir.h msdos.h ntfs_utl.h parti386.h partgpt.h parthumax.h partmac.h partsun.h partxbox.h partauto.h sudo.h unicode.h win32.h
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fs_C = analyse.c bfs.c bsd.c btrfs.c cramfs.c exfat.c ext2.c fat.c fatx.c f2fs.c jfs.c gfs2.c hfs.c hfsp.c hpfs.c luks.c lvm.c md.c netware.c ntfs.c refs.c rfs.c savehdr.c sun.c swap.c sysv.c ufs.c vmfs.c wbfs.c xfs.c zfs.c
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fs_H = analyse.h bfs.h bsd.h btrfs.h cramfs.h exfat.h ext2.h fat.h fatx.h f2fs.h f2fs_fs.h jfs_superblock.h jfs.h gfs2.h hfs.h hfsp.h hpfs.h hfsp_struct.h luks.h luks_struct.h lvm.h md.h netware.h ntfs.h ntfs_struct.h refs.h rfs.h savehdr.h sun.h swap.h sysv.h ufs.h vmfs.h wbfs.h xfs.h zfs.h
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fs_H = analyse.h bfs.h bsd.h btrfs.h cramfs.h exfat.h ext2.h fat.h fatx.h f2fs.h f2fs_fs.h jfs_superblock.h jfs.h gfs2.h hfs.h hfsp.h hpfs.h hfsp_struct.h luks.h luks_struct.h lvm.h md.h netware.h ntfs.h ntfs_struct.h refs.h rfs.h savehdr.h sun.h swap.h sysv.h ufs.h vmfs.h wbfs.h xfs.h xfs_struct.h zfs.h
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testdisk_ncurses_C = addpart.c addpartn.c adv.c askloc.c chgarch.c chgarchn.c chgtype.c chgtypen.c dimage.c dirn.c dirpart.c diskacc.c diskcapa.c edit.c ext2_sb.c ext2_sbn.c fat1x.c fat32.c fat_adv.c fat_cluster.c fatn.c geometry.c geometryn.c godmode.c hiddenn.c intrface.c intrfn.c nodisk.c ntfs_adv.c ntfs_fix.c ntfs_udl.c parti386n.c partgptn.c partmacn.c partsunn.c partxboxn.c tanalyse.c tbanner.c tdelete.c tdiskop.c tdisksel.c testdisk.c texfat.c thfs.c tload.c tlog.c tmbrcode.c tntfs.c toptions.c tpartwr.c
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testdisk_ncurses_H = addpart.h addpartn.h adv.h askloc.h chgarch.h chgarchn.h chgtype.h chgtypen.h dimage.h dirn.h dirpart.h diskacc.h diskcapa.h edit.h ext2_sb.h ext2_sbn.h fat1x.h fat32.h fat_adv.h fat_cluster.h fatn.h geometry.h geometryn.h godmode.h hiddenn.h intrface.h intrfn.h nodisk.h ntfs_adv.h ntfs_fix.h ntfs_udl.h partgptn.h parti386n.h partmacn.h partsunn.h partxboxn.h tanalyse.h tdelete.h tdiskop.h tdisksel.h texfat.h thfs.h tload.h tlog.h tmbrcode.h tntfs.h toptions.h tpartwr.h
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@ -390,7 +390,7 @@ file_C = filegen.c \
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file_zpr.c \
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utfsize.c
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file_H = ext2.h hfsp_struct.h filegen.h file_doc.h file_jpg.h file_gz.h file_riff.h file_sp3.h file_tar.h file_tiff.h luks_struct.h ntfs_struct.h ole.h pe.h suspend.h utfsize.h
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file_H = ext2.h hfsp_struct.h filegen.h file_doc.h file_jpg.h file_gz.h file_riff.h file_sp3.h file_tar.h file_tiff.h luks_struct.h ntfs_struct.h ole.h pe.h suspend.h utfsize.h xfs_struct.h
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photorec_C = photorec.c phcfg.c addpart.c chgarch.c chgtype.c dir.c exfatp.c ext2grp.c ext2_dir.c ext2p.c fat_dir.c fatp.c file_found.c geometry.c ntfs_dir.c ntfsp.c pdisksel.c poptions.c sessionp.c dfxml.c partgptro.c
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103
src/file_xfs.c
103
src/file_xfs.c
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@ -30,55 +30,71 @@
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#include <stdio.h>
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#include "types.h"
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#include "common.h"
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#include "xfs.h"
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#include "xfs_struct.h"
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#include "filegen.h"
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/*@ requires \valid(file_stat); */
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static void register_header_check_xfs(file_stat_t *file_stat);
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static int header_check_xfs_sb(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new);
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const file_hint_t file_hint_xfs= {
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.extension="xfs",
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.description="xfs structure",
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.max_filesize=0,
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.recover=1,
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.enable_by_default=1,
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.register_header_check=®ister_header_check_xfs
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const file_hint_t file_hint_xfs = {
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.extension = "xfs",
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.description = "xfs structure",
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.max_filesize = 0,
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.recover = 1,
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.enable_by_default = 1,
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.register_header_check = ®ister_header_check_xfs
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};
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/*@
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@ requires buffer_size >= sizeof(struct xfs_sb);
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@ requires \valid_read(buffer+(0..buffer_size-1));
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@ requires valid_file_recovery(file_recovery);
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@ requires \valid(file_recovery_new);
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@ requires file_recovery_new->blocksize > 0;
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@ requires separation: \separated(&file_hint_xfs, buffer+(..), file_recovery, file_recovery_new);
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@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
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@ assigns *file_recovery_new;
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@*/
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static int header_check_xfs_sb(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
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{
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const struct xfs_sb *sb=(const struct xfs_sb *)buffer;
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const unsigned int sb_blocksize=be32(sb->sb_blocksize);
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if( sb->sb_sectlog >= 16 ||
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sb->sb_inodelog >= 16 ||
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sb->sb_blocklog >= 16)
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const struct xfs_sb *sb = (const struct xfs_sb *)buffer;
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const unsigned int sb_blocksize = be32(sb->sb_blocksize);
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if(sb->sb_sectlog >= 16 || sb->sb_inodelog >= 16 || sb->sb_blocklog >= 16)
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return 0;
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if(sb->sb_magicnum!=be32(XFS_SB_MAGIC) ||
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be16(sb->sb_sectsize) != (1U << sb->sb_sectlog) ||
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sb_blocksize != (1U << sb->sb_blocklog) ||
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be16(sb->sb_inodesize) != (1U << sb->sb_inodelog))
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if(sb->sb_magicnum != be32(XFS_SB_MAGIC) || be16(sb->sb_sectsize) != (1U << sb->sb_sectlog) || sb_blocksize != (1U << sb->sb_blocklog) || be16(sb->sb_inodesize) != (1U << sb->sb_inodelog))
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return 0;
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reset_file_recovery(file_recovery_new);
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file_recovery_new->extension=file_hint_xfs.extension;
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file_recovery_new->calculated_file_size=sb_blocksize;
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file_recovery_new->data_check=&data_check_size;
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file_recovery_new->file_check=&file_check_size;
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file_recovery_new->extension = file_hint_xfs.extension;
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file_recovery_new->calculated_file_size = sb_blocksize;
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file_recovery_new->data_check = &data_check_size;
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file_recovery_new->file_check = &file_check_size;
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return 1;
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}
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/*@ assigns \nothing; */
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static data_check_t data_check_stopasap(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
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{
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return DC_STOP;
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}
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/*@
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@ requires buffer_size > 0;
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@ requires \valid_read(buffer+(0..buffer_size-1));
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@ requires valid_file_recovery(file_recovery);
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@ requires \valid(file_recovery_new);
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@ requires file_recovery_new->blocksize > 0;
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@ requires separation: \separated(&file_hint_xfs, buffer+(..), file_recovery, file_recovery_new);
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@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
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@ assigns *file_recovery_new;
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@*/
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static int header_save_xfs(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
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{
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if(safe_header_only>0)
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if(safe_header_only > 0)
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return 0;
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reset_file_recovery(file_recovery_new);
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file_recovery_new->extension=file_hint_xfs.extension;
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file_recovery_new->data_check=&data_check_stopasap;
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file_recovery_new->min_filesize=512;
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file_recovery_new->extension = file_hint_xfs.extension;
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file_recovery_new->data_check = &data_check_stopasap;
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file_recovery_new->min_filesize = 512;
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return 1;
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}
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@ -121,31 +137,36 @@ typedef struct xfs_dinode_core
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uint32_t di_gen;
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} xfs_dinode_core_t;
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/*@
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@ requires buffer_size >= sizeof(xfs_dinode_core_t);
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@ requires \valid_read(buffer+(0..buffer_size-1));
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@ requires valid_file_recovery(file_recovery);
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@ requires \valid(file_recovery_new);
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@ requires file_recovery_new->blocksize > 0;
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@ requires separation: \separated(&file_hint_xfs, buffer+(..), file_recovery, file_recovery_new);
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@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
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@ assigns *file_recovery_new;
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@*/
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static int header_check_xfs_inode(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
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{
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const xfs_dinode_core_t *inode=(const xfs_dinode_core_t *)buffer;
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if(safe_header_only>0)
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const xfs_dinode_core_t *inode = (const xfs_dinode_core_t *)buffer;
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if(safe_header_only > 0)
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return 0;
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if(inode->di_version!=2 ||
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inode->di_pad[0]!=0 || inode->di_pad[1]!=0 ||
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inode->di_pad[2]!=0 || inode->di_pad[3]!=0 ||
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inode->di_pad[4]!=0 || inode->di_pad[5]!=0 ||
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inode->di_pad[6]!=0 || inode->di_pad[7]!=0)
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if(inode->di_version != 2 || inode->di_pad[0] != 0 || inode->di_pad[1] != 0 || inode->di_pad[2] != 0 || inode->di_pad[3] != 0 || inode->di_pad[4] != 0 || inode->di_pad[5] != 0 || inode->di_pad[6] != 0 || inode->di_pad[7] != 0)
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return 0;
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reset_file_recovery(file_recovery_new);
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file_recovery_new->extension=file_hint_xfs.extension;
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file_recovery_new->data_check=&data_check_stopasap;
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file_recovery_new->extension = file_hint_xfs.extension;
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file_recovery_new->data_check = &data_check_stopasap;
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return 1;
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}
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static void register_header_check_xfs(file_stat_t *file_stat)
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{
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static const unsigned char xagf[8]={'X','A','G','F', 0,0,0,1};
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static const unsigned char xagi[8]={'X','A','G','I', 0,0,0,1};
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static const unsigned char abtb[8]={'A','B','T','B', 0,0,0,1};
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static const unsigned char abtc[8]={'A','B','T','C', 0,0,0,1};
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static const unsigned char iabt[8]={'I','A','B','T', 0,0,0,1};
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static const unsigned char xagf[8] = { 'X', 'A', 'G', 'F', 0, 0, 0, 1 };
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static const unsigned char xagi[8] = { 'X', 'A', 'G', 'I', 0, 0, 0, 1 };
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static const unsigned char abtb[8] = { 'A', 'B', 'T', 'B', 0, 0, 0, 1 };
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static const unsigned char abtc[8] = { 'A', 'B', 'T', 'C', 0, 0, 0, 1 };
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static const unsigned char iabt[8] = { 'I', 'A', 'B', 'T', 0, 0, 0, 1 };
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register_header_check(0, "XFSB", 4, &header_check_xfs_sb, file_stat);
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register_header_check(0, xagf, 8, &header_save_xfs, file_stat);
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register_header_check(0, xagi, 8, &header_save_xfs, file_stat);
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78
src/xfs.h
78
src/xfs.h
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@ -22,6 +22,7 @@
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*
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*/
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#include "xfs_struct.h"
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/*
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* Super block
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* Fits into a sector-sized buffer at address 0 of each allocation group.
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@ -33,83 +34,6 @@
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extern "C" {
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#endif
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#define XFS_SUPERBLOCK_SIZE 512
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#define XFS_SB_MAGIC 0x58465342 /* 'XFSB' */
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#define XFS_SB_VERSION_1 1 /* 5.3, 6.0.1, 6.1 */
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#define XFS_SB_VERSION_2 2 /* 6.2 - attributes */
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#define XFS_SB_VERSION_3 3 /* 6.2 - new inode version */
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#define XFS_SB_VERSION_4 4 /* 6.2+ - bitmask version */
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#define XFS_SB_VERSION_5 5 /* CRC enabled filesystem */
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#define XFS_SB_VERSION_NUMBITS 0x000f
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typedef uint32_t xfs_extlen_t; /* extent length in blocks */
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typedef uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */
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typedef uint64_t xfs_drtbno_t; /* extent (block) in realtime area */
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typedef uint64_t xfs_ino_t; /* <inode> type */
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typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
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typedef uint32_t xfs_agnumber_t; /* allocation group number */
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typedef uint64_t xfs_dfsbno_t;
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struct xfs_sb
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{
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uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */
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uint32_t sb_blocksize; /* logical block size, bytes */
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xfs_drfsbno_t sb_dblocks; /* number of data blocks */
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xfs_drfsbno_t sb_rblocks; /* number of realtime blocks */
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xfs_drtbno_t sb_rextents; /* number of realtime extents */
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uint8_t sb_uuid[16]; /* file system unique id */
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xfs_dfsbno_t sb_logstart; /* starting block of log if internal */
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xfs_ino_t sb_rootino; /* root inode number */
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xfs_ino_t sb_rbmino; /* bitmap inode for realtime extents */
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xfs_ino_t sb_rsumino; /* summary inode for rt bitmap */
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xfs_agblock_t sb_rextsize; /* realtime extent size, blocks */
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xfs_agblock_t sb_agblocks; /* size of an allocation group */
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xfs_agnumber_t sb_agcount; /* number of allocation groups */
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xfs_extlen_t sb_rbmblocks; /* number of rt bitmap blocks */
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xfs_extlen_t sb_logblocks; /* number of log blocks */
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uint16_t sb_versionnum; /* header version == XFS_SB_VERSION */
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uint16_t sb_sectsize; /* volume sector size, bytes */
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uint16_t sb_inodesize; /* inode size, bytes */
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uint16_t sb_inopblock; /* inodes per block */
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char sb_fname[12]; /* file system name */
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uint8_t sb_blocklog; /* log2 of sb_blocksize */
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uint8_t sb_sectlog; /* log2 of sb_sectsize */
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uint8_t sb_inodelog; /* log2 of sb_inodesize */
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uint8_t sb_inopblog; /* log2 of sb_inopblock */
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uint8_t sb_agblklog; /* log2 of sb_agblocks (rounded up) */
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uint8_t sb_rextslog; /* log2 of sb_rextents */
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uint8_t sb_inprogress; /* mkfs is in progress, don't mount */
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uint8_t sb_imax_pct; /* max % of fs for inode space */
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/* statistics */
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/*
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* These fields must remain contiguous. If you really
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* want to change their layout, make sure you fix the
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* code in xfs_trans_apply_sb_deltas().
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*/
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uint64_t sb_icount; /* allocated inodes */
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uint64_t sb_ifree; /* free inodes */
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uint64_t sb_fdblocks; /* free data blocks */
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uint64_t sb_frextents; /* free realtime extents */
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/*
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* End contiguous fields.
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*/
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xfs_ino_t sb_uquotino; /* user quota inode */
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xfs_ino_t sb_gquotino; /* group quota inode */
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uint16_t sb_qflags; /* quota flags */
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uint8_t sb_flags; /* misc. flags */
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uint8_t sb_shared_vn; /* shared version number */
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xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */
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uint32_t sb_unit; /* stripe or raid unit */
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uint32_t sb_width; /* stripe or raid width */
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uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */
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uint8_t sb_logsectlog; /* log2 of the log sector size */
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uint16_t sb_logsectsize; /* sector size for the log, bytes */
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uint32_t sb_logsunit; /* stripe unit size for the log */
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uint32_t sb_features2; /* additonal feature bits */
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} __attribute__ ((gcc_struct, __packed__));
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/*@
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@ requires \valid(disk_car);
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@ requires \valid(partition);
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115
src/xfs_struct.h
Normal file
115
src/xfs_struct.h
Normal file
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@ -0,0 +1,115 @@
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/*
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* File xfs_struct.h
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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/*
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* Super block
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* Fits into a sector-sized buffer at address 0 of each allocation group.
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* Only the first of these is ever updated except during growfs.
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*/
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#ifndef _XFS_STRUCT_H
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#define _XFS_STRUCT_H
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#ifdef __cplusplus
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extern "C" {
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||||
#endif
|
||||
|
||||
#define XFS_SUPERBLOCK_SIZE 512
|
||||
|
||||
#define XFS_SB_MAGIC 0x58465342 /* 'XFSB' */
|
||||
#define XFS_SB_VERSION_1 1 /* 5.3, 6.0.1, 6.1 */
|
||||
#define XFS_SB_VERSION_2 2 /* 6.2 - attributes */
|
||||
#define XFS_SB_VERSION_3 3 /* 6.2 - new inode version */
|
||||
#define XFS_SB_VERSION_4 4 /* 6.2+ - bitmask version */
|
||||
#define XFS_SB_VERSION_5 5 /* CRC enabled filesystem */
|
||||
#define XFS_SB_VERSION_NUMBITS 0x000f
|
||||
|
||||
typedef uint32_t xfs_extlen_t; /* extent length in blocks */
|
||||
typedef uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */
|
||||
typedef uint64_t xfs_drtbno_t; /* extent (block) in realtime area */
|
||||
typedef uint64_t xfs_ino_t; /* <inode> type */
|
||||
typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
|
||||
typedef uint32_t xfs_agnumber_t; /* allocation group number */
|
||||
typedef uint64_t xfs_dfsbno_t;
|
||||
|
||||
struct xfs_sb
|
||||
{
|
||||
uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */
|
||||
uint32_t sb_blocksize; /* logical block size, bytes */
|
||||
xfs_drfsbno_t sb_dblocks; /* number of data blocks */
|
||||
xfs_drfsbno_t sb_rblocks; /* number of realtime blocks */
|
||||
xfs_drtbno_t sb_rextents; /* number of realtime extents */
|
||||
uint8_t sb_uuid[16]; /* file system unique id */
|
||||
xfs_dfsbno_t sb_logstart; /* starting block of log if internal */
|
||||
xfs_ino_t sb_rootino; /* root inode number */
|
||||
xfs_ino_t sb_rbmino; /* bitmap inode for realtime extents */
|
||||
xfs_ino_t sb_rsumino; /* summary inode for rt bitmap */
|
||||
xfs_agblock_t sb_rextsize; /* realtime extent size, blocks */
|
||||
xfs_agblock_t sb_agblocks; /* size of an allocation group */
|
||||
xfs_agnumber_t sb_agcount; /* number of allocation groups */
|
||||
xfs_extlen_t sb_rbmblocks; /* number of rt bitmap blocks */
|
||||
xfs_extlen_t sb_logblocks; /* number of log blocks */
|
||||
uint16_t sb_versionnum; /* header version == XFS_SB_VERSION */
|
||||
uint16_t sb_sectsize; /* volume sector size, bytes */
|
||||
uint16_t sb_inodesize; /* inode size, bytes */
|
||||
uint16_t sb_inopblock; /* inodes per block */
|
||||
char sb_fname[12]; /* file system name */
|
||||
uint8_t sb_blocklog; /* log2 of sb_blocksize */
|
||||
uint8_t sb_sectlog; /* log2 of sb_sectsize */
|
||||
uint8_t sb_inodelog; /* log2 of sb_inodesize */
|
||||
uint8_t sb_inopblog; /* log2 of sb_inopblock */
|
||||
uint8_t sb_agblklog; /* log2 of sb_agblocks (rounded up) */
|
||||
uint8_t sb_rextslog; /* log2 of sb_rextents */
|
||||
uint8_t sb_inprogress; /* mkfs is in progress, don't mount */
|
||||
uint8_t sb_imax_pct; /* max % of fs for inode space */
|
||||
/* statistics */
|
||||
/*
|
||||
* These fields must remain contiguous. If you really
|
||||
* want to change their layout, make sure you fix the
|
||||
* code in xfs_trans_apply_sb_deltas().
|
||||
*/
|
||||
uint64_t sb_icount; /* allocated inodes */
|
||||
uint64_t sb_ifree; /* free inodes */
|
||||
uint64_t sb_fdblocks; /* free data blocks */
|
||||
uint64_t sb_frextents; /* free realtime extents */
|
||||
/*
|
||||
* End contiguous fields.
|
||||
*/
|
||||
xfs_ino_t sb_uquotino; /* user quota inode */
|
||||
xfs_ino_t sb_gquotino; /* group quota inode */
|
||||
uint16_t sb_qflags; /* quota flags */
|
||||
uint8_t sb_flags; /* misc. flags */
|
||||
uint8_t sb_shared_vn; /* shared version number */
|
||||
xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */
|
||||
uint32_t sb_unit; /* stripe or raid unit */
|
||||
uint32_t sb_width; /* stripe or raid width */
|
||||
uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */
|
||||
uint8_t sb_logsectlog; /* log2 of the log sector size */
|
||||
uint16_t sb_logsectsize; /* sector size for the log, bytes */
|
||||
uint32_t sb_logsunit; /* stripe unit size for the log */
|
||||
uint32_t sb_features2; /* additonal feature bits */
|
||||
} __attribute__ ((gcc_struct, __packed__));
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* closing brace for extern "C" */
|
||||
#endif
|
||||
#endif
|
||||
Loading…
Reference in a new issue