From 0d83f7fc83f77d1cc8395b9e851325d8cc1892e3 Mon Sep 17 00:00:00 2001 From: Krzysztof Błaszkowski Date: Tue, 31 May 2016 08:45:13 +0200 Subject: freevxfs: handle big endian HP-UX file systems MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To support VxFS filesystems from HP-UX on x86 systems we need to implement byte swapping, and to keep support for Unixware filesystems it needs to be the complicated dual-endian kind ala sysvfs. To do this properly we have to split the on disk and in-core inode so that we can keep the in-core one in native endianness. All other structures are byteswapped on demand. Signed-off-by: Krzysztof Błaszkowski [hch: make spare happy] Signed-off-by: Christoph Hellwig --- fs/freevxfs/vxfs_inode.h | 138 ++++++++++++++++++++++++----------------------- 1 file changed, 72 insertions(+), 66 deletions(-) (limited to 'fs/freevxfs/vxfs_inode.h') diff --git a/fs/freevxfs/vxfs_inode.h b/fs/freevxfs/vxfs_inode.h index 240aeb11263f..93d01148e5db 100644 --- a/fs/freevxfs/vxfs_inode.h +++ b/fs/freevxfs/vxfs_inode.h @@ -66,74 +66,74 @@ enum { * Data stored immediately in the inode. */ struct vxfs_immed { - u_int8_t vi_immed[VXFS_NIMMED]; + __u8 vi_immed[VXFS_NIMMED]; }; struct vxfs_ext4 { - u_int32_t ve4_spare; /* ?? */ - u_int32_t ve4_indsize; /* Indirect extent size */ - vx_daddr_t ve4_indir[VXFS_NIADDR]; /* Indirect extents */ + __fs32 ve4_spare; /* ?? */ + __fs32 ve4_indsize; /* Indirect extent size */ + __fs32 ve4_indir[VXFS_NIADDR]; /* Indirect extents */ struct direct { /* Direct extents */ - vx_daddr_t extent; /* Extent number */ - int32_t size; /* Size of extent */ + __fs32 extent; /* Extent number */ + __fs32 size; /* Size of extent */ } ve4_direct[VXFS_NDADDR]; }; struct vxfs_typed { - u_int64_t vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ - vx_daddr_t vt_block; /* Extent block */ - int32_t vt_size; /* Size in blocks */ + __fs64 vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ + __fs32 vt_block; /* Extent block */ + __fs32 vt_size; /* Size in blocks */ }; struct vxfs_typed_dev4 { - u_int64_t vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ - u_int64_t vd4_block; /* Extent block */ - u_int64_t vd4_size; /* Size in blocks */ - int32_t vd4_dev; /* Device ID */ - u_int32_t __pad1; + __fs64 vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ + __fs64 vd4_block; /* Extent block */ + __fs64 vd4_size; /* Size in blocks */ + __fs32 vd4_dev; /* Device ID */ + __u8 __pad1; }; /* * The inode as contained on the physical device. */ struct vxfs_dinode { - int32_t vdi_mode; - u_int32_t vdi_nlink; /* Link count */ - u_int32_t vdi_uid; /* UID */ - u_int32_t vdi_gid; /* GID */ - u_int64_t vdi_size; /* Inode size in bytes */ - u_int32_t vdi_atime; /* Last time accessed - sec */ - u_int32_t vdi_autime; /* Last time accessed - usec */ - u_int32_t vdi_mtime; /* Last modify time - sec */ - u_int32_t vdi_mutime; /* Last modify time - usec */ - u_int32_t vdi_ctime; /* Create time - sec */ - u_int32_t vdi_cutime; /* Create time - usec */ - u_int8_t vdi_aflags; /* Allocation flags */ - u_int8_t vdi_orgtype; /* Organisation type */ - u_int16_t vdi_eopflags; - u_int32_t vdi_eopdata; + __fs32 vdi_mode; + __fs32 vdi_nlink; /* Link count */ + __fs32 vdi_uid; /* UID */ + __fs32 vdi_gid; /* GID */ + __fs64 vdi_size; /* Inode size in bytes */ + __fs32 vdi_atime; /* Last time accessed - sec */ + __fs32 vdi_autime; /* Last time accessed - usec */ + __fs32 vdi_mtime; /* Last modify time - sec */ + __fs32 vdi_mutime; /* Last modify time - usec */ + __fs32 vdi_ctime; /* Create time - sec */ + __fs32 vdi_cutime; /* Create time - usec */ + __u8 vdi_aflags; /* Allocation flags */ + __u8 vdi_orgtype; /* Organisation type */ + __fs16 vdi_eopflags; + __fs32 vdi_eopdata; union { - u_int32_t rdev; - u_int32_t dotdot; + __fs32 rdev; + __fs32 dotdot; struct { - u_int32_t reserved; - u_int32_t fixextsize; + __u32 reserved; + __fs32 fixextsize; } i_regular; struct { - u_int32_t matchino; - u_int32_t fsetindex; + __fs32 matchino; + __fs32 fsetindex; } i_vxspec; - u_int64_t align; + __u64 align; } vdi_ftarea; - u_int32_t vdi_blocks; /* How much blocks does inode occupy */ - u_int32_t vdi_gen; /* Inode generation */ - u_int64_t vdi_version; /* Version */ + __fs32 vdi_blocks; /* How much blocks does inode occupy */ + __fs32 vdi_gen; /* Inode generation */ + __fs64 vdi_version; /* Version */ union { struct vxfs_immed immed; struct vxfs_ext4 ext4; struct vxfs_typed typed[VXFS_NTYPED]; } vdi_org; - u_int32_t vdi_iattrino; + __fs32 vdi_iattrino; }; #define vdi_rdev vdi_ftarea.rdev @@ -149,32 +149,38 @@ struct vxfs_dinode { /* * The inode as represented in the main memory. - * - * TBD: This should become a separate structure... */ -#define vxfs_inode_info vxfs_dinode - -#define vii_mode vdi_mode -#define vii_uid vdi_uid -#define vii_gid vdi_gid -#define vii_nlink vdi_nlink -#define vii_size vdi_size -#define vii_atime vdi_atime -#define vii_ctime vdi_ctime -#define vii_mtime vdi_mtime -#define vii_blocks vdi_blocks -#define vii_org vdi_org -#define vii_orgtype vdi_orgtype -#define vii_gen vdi_gen - -#define vii_rdev vdi_ftarea.rdev -#define vii_dotdot vdi_ftarea.dotdot -#define vii_fixextsize vdi_ftarea.regular.fixextsize -#define vii_matchino vdi_ftarea.vxspec.matchino -#define vii_fsetindex vdi_ftarea.vxspec.fsetindex - -#define vii_immed vdi_org.immed -#define vii_ext4 vdi_org.ext4 -#define vii_typed vdi_org.typed +struct vxfs_inode_info { + __u32 vii_mode; + __u32 vii_nlink; /* Link count */ + __u32 vii_uid; /* UID */ + __u32 vii_gid; /* GID */ + __u64 vii_size; /* Inode size in bytes */ + __u32 vii_atime; /* Last time accessed - sec */ + __u32 vii_autime; /* Last time accessed - usec */ + __u32 vii_mtime; /* Last modify time - sec */ + __u32 vii_mutime; /* Last modify time - usec */ + __u32 vii_ctime; /* Create time - sec */ + __u32 vii_cutime; /* Create time - usec */ + __u8 vii_orgtype; /* Organisation type */ + union { + __u32 rdev; + __u32 dotdot; + } vii_ftarea; + __u32 vii_blocks; /* How much blocks does inode occupy */ + __u32 vii_gen; /* Inode generation */ + union { + struct vxfs_immed immed; + struct vxfs_ext4 ext4; + struct vxfs_typed typed[VXFS_NTYPED]; + } vii_org; +}; + +#define vii_rdev vii_ftarea.rdev +#define vii_dotdot vii_ftarea.dotdot + +#define vii_immed vii_org.immed +#define vii_ext4 vii_org.ext4 +#define vii_typed vii_org.typed #endif /* _VXFS_INODE_H_ */ -- cgit v1.2.3-58-ga151