/* * Copyright (c) 2004 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Matthew Dillon <dillon@backplane.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * This module serves as a focal point for virtually all filesystem and * device related calls. It is or will be responsible for all high level * kernel management for filesystem and device operations, including but * limited to: * * Function Status * ---------------- ----- * Journaling TODO * Range Locking TODO * Cache Coherency TODO * VNode Operations Dispatch TODO * Mount Point Operations TODO * FileOps Operations TODO */ #ifndef _SYS_VFSCACHE_H_ #define _SYS_VFSCACHE_H_ #ifndef _SYS_TYPES_H_ #include <sys/types.h> #endif #ifndef _SYS_TIME_H_ #include <sys/time.h> #endif #ifndef _SYS_VFSOPS_H_ #include <sys/vfsops.h> #endif #ifndef _SYS_UUID_H_ #include <sys/uuid.h> #endif /* * Vnode types. VNON means no type or transitory type. VINT is used * for internal types. Note that VNON is skipped by the vnode scan. */ enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD, VDATABASE, VINT }; /* * Vnode tag types. * These are for the benefit of external programs only (e.g., pstat) * and should NEVER be inspected by the kernel. */ enum vtagtype { VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_UNUSED4, VT_UNUSED5, VT_UNUSED6, VT_UNUSED7, VT_UNUSED8, VT_NULL, VT_UNUSED10, VT_UNUSED11, VT_PROCFS, VT_UNUSED13, VT_ISOFS, VT_UNUSED15, VT_MSDOSFS, VT_UNUSED17, VT_VFS, VT_UNUSED19, VT_NTFS, VT_HPFS, VT_SMBFS, VT_UDF, VT_EXT2FS, VT_SYNTH, VT_HAMMER, VT_HAMMER2, VT_DEVFS, VT_TMPFS, VT_AUTOFS, VT_FUSE }; /* * Vnode attributes. A field value of VNOVAL represents a field whose value * is unavailable (getattr) or which is not to be changed (setattr). * * Some vattr fields may be wider then what is reported to userland. */ struct vattr { enum vtype va_type; /* vnode type (for create) */ u_int64_t va_nlink; /* number of references to file */ u_short va_mode; /* files access mode and type */ uid_t va_uid; /* owner user id */ gid_t va_gid; /* owner group id */ dev_t va_fsid; /* file system id */ ino_t va_fileid; /* file id */ u_quad_t va_size; /* file size in bytes */ long va_blocksize; /* blocksize preferred for i/o */ struct timespec va_atime; /* time of last access */ struct timespec va_mtime; /* time of last modification */ struct timespec va_ctime; /* time file changed */ u_int64_t va_gen; /* generation number of file */ u_long va_flags; /* flags defined for file */ int va_rmajor; /* device the special file represents */ int va_rminor; u_quad_t va_bytes; /* bytes of disk space held by file */ u_quad_t va_filerev; /* file modification number */ u_int va_vaflags; /* operations flags, see below */ long va_spare; /* remain quad aligned */ uint32_t va_fuseflags; /* used by FUSE */ uint32_t va_unused01; uuid_t va_uid_uuid; /* native uuids if available */ uuid_t va_gid_uuid; uuid_t va_fsid_uuid; }; /* * A light version of vattr used by the fast-path GETATTR_LITE() * * NOTE: If adjusting fields in this structure, also adjust in * vop_stdgetattr_lite() and kern_futimes(). */ struct vattr_lite { enum vtype va_type; /* vnode type (for create) */ u_int64_t va_nlink; /* number of references to file */ u_short va_mode; /* files access mode and type */ uid_t va_uid; /* owner user id */ gid_t va_gid; /* owner group id */ u_quad_t va_size; /* file size in bytes */ u_long va_flags; /* flags defined for file */ }; /* * Flags for va_vaflags. * * NOTE: The short versions for the uid, gid, and fsid are always populated * even when the uuid versions are available. */ #define VA_UTIMES_NULL 0x0001 /* utimes argument was NULL */ #define VA_EXCLUSIVE 0x0002 /* exclusive create request */ #define VA_UID_UUID_VALID 0x0004 /* uuid fields also populated */ #define VA_GID_UUID_VALID 0x0008 /* uuid fields also populated */ #define VA_FSID_UUID_VALID 0x0010 /* uuid fields also populated */ #endif
