/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * University Copyright- Copyright (c) 1982, 1986, 1988 * The Regents of the University of California * All Rights Reserved * * University Acknowledgment- Portions of this document are derived from * software developed by the University of California, Berkeley, and its * contributors. */ #ifndef _SYS_VNODE_H #define _SYS_VNODE_H #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #ifdef _KERNEL #include #endif /* _KERNEL */ #ifdef __cplusplus extern "C" { #endif typedef int (*fs_generic_func_p) (); /* * File systems use arrays of fs_operation_def structures to form * name/value pairs of operations. These arrays get passed to: * * - vn_make_ops() to create vnodeops * - vfs_makefsops()/vfs_setfsops() to create vfsops. */ typedef struct fs_operation_def { char *name; /* name of operation (NULL at end) */ fs_generic_func_p func; /* function implementing operation */ } fs_operation_def_t; /* * The operation registration mechanism uses two master tables of operations: * one for vnode operations (vn_ops_table[]) and one for vfs operations * (vfs_ops_table[]). These tables are arrays of fs_operation_trans_def * structures. They contain all of the information necessary for the system * to populate an operations structure (e.g., vnodeops, vfsops). * * File systems call registration routines (vfs_setfsops(), vfs_makefsops(), * and vn_make_ops()) and pass in their operations specification tables * (arrays of fs_operation_def structures). These routines use the master * table(s) of operations to build a vnodeops or vfsops structure. */ typedef struct fs_operation_trans_def { char *name; /* name of operation (NULL at end) */ int offset; /* byte offset within ops vector */ fs_generic_func_p defaultFunc; /* default function */ fs_generic_func_p errorFunc; /* error function */ } fs_operation_trans_def_t; /* * Statistics for all vnode operations. * All operations record number of ops (since boot/mount/zero'ed). * Certain I/O operations (read, write, readdir) also record number * of bytes transferred. * This appears in two places in the system: one is embedded in each * vfs_t. There is also an array of vopstats_t structures allocated * on a per-fstype basis. */ #define VOPSTATS_STR "vopstats_" /* Initial string for vopstat kstats */ typedef struct vopstats { kstat_named_t nopen; /* VOP_OPEN */ kstat_named_t nclose; /* VOP_CLOSE */ kstat_named_t nread; /* VOP_READ */ kstat_named_t read_bytes; kstat_named_t nwrite; /* VOP_WRITE */ kstat_named_t write_bytes; kstat_named_t nioctl; /* VOP_IOCTL */ kstat_named_t nsetfl; /* VOP_SETFL */ kstat_named_t ngetattr; /* VOP_GETATTR */ kstat_named_t nsetattr; /* VOP_SETATTR */ kstat_named_t naccess; /* VOP_ACCESS */ kstat_named_t nlookup; /* VOP_LOOKUP */ kstat_named_t ncreate; /* VOP_CREATE */ kstat_named_t nremove; /* VOP_REMOVE */ kstat_named_t nlink; /* VOP_LINK */ kstat_named_t nrename; /* VOP_RENAME */ kstat_named_t nmkdir; /* VOP_MKDIR */ kstat_named_t nrmdir; /* VOP_RMDIR */ kstat_named_t nreaddir; /* VOP_READDIR */ kstat_named_t readdir_bytes; kstat_named_t nsymlink; /* VOP_SYMLINK */ kstat_named_t nreadlink; /* VOP_READLINK */ kstat_named_t nfsync; /* VOP_FSYNC */ kstat_named_t ninactive; /* VOP_INACTIVE */ kstat_named_t nfid; /* VOP_FID */ kstat_named_t nrwlock; /* VOP_RWLOCK */ kstat_named_t nrwunlock; /* VOP_RWUNLOCK */ kstat_named_t nseek; /* VOP_SEEK */ kstat_named_t ncmp; /* VOP_CMP */ kstat_named_t nfrlock; /* VOP_FRLOCK */ kstat_named_t nspace; /* VOP_SPACE */ kstat_named_t nrealvp; /* VOP_REALVP */ kstat_named_t ngetpage; /* VOP_GETPAGE */ kstat_named_t nputpage; /* VOP_PUTPAGE */ kstat_named_t nmap; /* VOP_MAP */ kstat_named_t naddmap; /* VOP_ADDMAP */ kstat_named_t ndelmap; /* VOP_DELMAP */ kstat_named_t npoll; /* VOP_POLL */ kstat_named_t ndump; /* VOP_DUMP */ kstat_named_t npathconf; /* VOP_PATHCONF */ kstat_named_t npageio; /* VOP_PAGEIO */ kstat_named_t ndumpctl; /* VOP_DUMPCTL */ kstat_named_t ndispose; /* VOP_DISPOSE */ kstat_named_t nsetsecattr; /* VOP_SETSECATTR */ kstat_named_t ngetsecattr; /* VOP_GETSECATTR */ kstat_named_t nshrlock; /* VOP_SHRLOCK */ kstat_named_t nvnevent; /* VOP_VNEVENT */ } vopstats_t; /* * The vnode is the focus of all file activity in UNIX. * A vnode is allocated for each active file, each current * directory, each mounted-on file, and the root. * * Each vnode is usually associated with a file-system-specific node (for * UFS, this is the in-memory inode). Generally, a vnode and an fs-node * should be created and destroyed together as a pair. * * If a vnode is reused for a new file, it should be reinitialized by calling * either vn_reinit() or vn_recycle(). * * vn_reinit() resets the entire vnode as if it was returned by vn_alloc(). * The caller is responsible for setting up the entire vnode after calling * vn_reinit(). This is important when using kmem caching where the vnode is * allocated by a constructor, for instance. * * vn_recycle() is used when the file system keeps some state around in both * the vnode and the associated FS-node. In UFS, for example, the inode of * a deleted file can be reused immediately. The v_data, v_vfsp, v_op, etc. * remains the same but certain fields related to the previous instance need * to be reset. In particular: * v_femhead * v_path * v_rdcnt, v_wrcnt * v_mmap_read, v_mmap_write */ /* * vnode types. VNON means no type. These values are unrelated to * values in on-disk inodes. */ typedef enum vtype { VNON = 0, VREG = 1, VDIR = 2, VBLK = 3, VCHR = 4, VLNK = 5, VFIFO = 6, VDOOR = 7, VPROC = 8, VSOCK = 9, VPORT = 10, VBAD = 11 } vtype_t; /* * Many of the fields in the vnode are read-only once they are initialized * at vnode creation time. Other fields are protected by locks. * * IMPORTANT: vnodes should be created ONLY by calls to vn_alloc(). They * may not be embedded into the file-system specific node (inode). The * size of vnodes may change. * * The v_lock protects: * v_flag * v_stream * v_count * v_shrlocks * v_path * * A special lock (implemented by vn_vfswlock in vnode.c) protects: * v_vfsmountedhere * * The global flock_lock mutex (in flock.c) protects: * v_filocks * * IMPORTANT NOTE: * * The following vnode fields are considered public and may safely be * accessed by file systems or other consumers: * * v_lock * v_flag * v_count * v_data * v_vfsp * v_stream * v_type * v_rdev * * ALL OTHER FIELDS SHOULD BE ACCESSED ONLY BY THE OWNER OF THAT FIELD. * In particular, file systems should not access other fields; they may * change or even be removed. The functionality which was once provided * by these fields is available through vn_* functions. */ struct fem_head; /* from fem.h */ typedef struct vnode { kmutex_t v_lock; /* protects vnode fields */ uint_t v_flag; /* vnode flags (see below) */ uint_t v_count; /* reference count */ void *v_data; /* private data for fs */ struct vfs *v_vfsp; /* ptr to containing VFS */ struct stdata *v_stream; /* associated stream */ enum vtype v_type; /* vnode type */ dev_t v_rdev; /* device (VCHR, VBLK) */ /* PRIVATE FIELDS BELOW - DO NOT USE */ struct vfs *v_vfsmountedhere; /* ptr to vfs mounted here */ struct vnodeops *v_op; /* vnode operations */ struct page *v_pages; /* vnode pages list */ pgcnt_t v_npages; /* # pages on this vnode */ pgcnt_t v_msnpages; /* # pages charged to v_mset */ struct page *v_scanfront; /* scanner front hand */ struct page *v_scanback; /* scanner back hand */ struct filock *v_filocks; /* ptr to filock list */ struct shrlocklist *v_shrlocks; /* ptr to shrlock list */ krwlock_t v_nbllock; /* sync for NBMAND locks */ kcondvar_t v_cv; /* synchronize locking */ void *v_locality; /* hook for locality info */ struct fem_head *v_femhead; /* fs monitoring */ char *v_path; /* cached path */ uint_t v_rdcnt; /* open for read count (VREG only) */ uint_t v_wrcnt; /* open for write count (VREG only) */ u_longlong_t v_mmap_read; /* mmap read count */ u_longlong_t v_mmap_write; /* mmap write count */ void *v_mpssdata; /* info for large page mappings */ hrtime_t v_scantime; /* last time this vnode was scanned */ ushort_t v_mset; /* memory set ID */ uint_t v_msflags; /* memory set flags */ struct vnode *v_msnext; /* list of vnodes on an mset */ struct vnode *v_msprev; /* list of vnodes on an mset */ krwlock_t v_mslock; /* protects v_mset */ } vnode_t; #define IS_DEVVP(vp) \ ((vp)->v_type == VCHR || (vp)->v_type == VBLK || (vp)->v_type == VFIFO) /* * vnode flags. */ #define VROOT 0x01 /* root of its file system */ #define VNOCACHE 0x02 /* don't keep cache pages on vnode */ #define VNOMAP 0x04 /* file cannot be mapped/faulted */ #define VDUP 0x08 /* file should be dup'ed rather then opened */ #define VNOSWAP 0x10 /* file cannot be used as virtual swap device */ #define VNOMOUNT 0x20 /* file cannot be covered by mount */ #define VISSWAP 0x40 /* vnode is being used for swap */ #define VSWAPLIKE 0x80 /* vnode acts like swap (but may not be) */ #define IS_SWAPVP(vp) (((vp)->v_flag & (VISSWAP | VSWAPLIKE)) != 0) typedef struct vn_vfslocks_entry { rwstlock_t ve_lock; void *ve_vpvfs; struct vn_vfslocks_entry *ve_next; uint32_t ve_refcnt; char pad[64 - sizeof (rwstlock_t) - 2 * sizeof (void *) - \ sizeof (uint32_t)]; } vn_vfslocks_entry_t; /* * The following two flags are used to lock the v_vfsmountedhere field */ #define VVFSLOCK 0x100 #define VVFSWAIT 0x200 /* * Used to serialize VM operations on a vnode */ #define VVMLOCK 0x400 /* * Tell vn_open() not to fail a directory open for writing but * to go ahead and call VOP_OPEN() to let the filesystem check. */ #define VDIROPEN 0x800 /* * Flag to let the VM system know that this file is most likely a binary * or shared library since it has been mmap()ed EXEC at some time. */ #define VVMEXEC 0x1000 #define VPXFS 0x2000 /* clustering: global fs proxy vnode */ #define IS_PXFSVP(vp) ((vp)->v_flag & VPXFS) #define V_XATTRDIR 0x4000 /* attribute unnamed directory */ #define V_LOCALITY 0x8000 /* whether locality aware */ /* * Flag that indicates the VM should maintain the v_pages list with all modified * pages on one end and unmodified pages at the other. This makes finding dirty * pages to write back to disk much faster at the expense of taking a minor * fault on the first store instruction which touches a writable page. */ #define VMODSORT (0x10000) #define IS_VMODSORT(vp) \ (pvn_vmodsort_supported != 0 && ((vp)->v_flag & VMODSORT) != 0) #define VISSWAPFS 0x20000 /* vnode is being used for swapfs */ #define IS_SWAPFSVP(vp) (((vp)->v_flag & VISSWAPFS) != 0) /* * Vnode attributes. A bit-mask is supplied as part of the * structure to indicate the attributes the caller wants to * set (setattr) or extract (getattr). */ /* * Note that va_nodeid and va_nblocks are 64bit data type. * We support large files over NFSV3. With Solaris client and * Server that generates 64bit ino's and sizes these fields * will overflow if they are 32 bit sizes. */ typedef struct vattr { uint_t va_mask; /* bit-mask of attributes */ vtype_t va_type; /* vnode type (for create) */ mode_t va_mode; /* file access mode */ uid_t va_uid; /* owner user id */ gid_t va_gid; /* owner group id */ dev_t va_fsid; /* file system id (dev for now) */ u_longlong_t va_nodeid; /* node id */ nlink_t va_nlink; /* number of references to file */ u_offset_t va_size; /* file size in bytes */ timestruc_t va_atime; /* time of last access */ timestruc_t va_mtime; /* time of last modification */ timestruc_t va_ctime; /* time of last status change */ dev_t va_rdev; /* device the file represents */ uint_t va_blksize; /* fundamental block size */ u_longlong_t va_nblocks; /* # of blocks allocated */ uint_t va_seq; /* sequence number */ } vattr_t; #ifdef _SYSCALL32 /* * For bigtypes time_t changed to 64 bit on the 64-bit kernel. * Define an old version for user/kernel interface */ #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 #pragma pack(4) #endif typedef struct vattr32 { uint32_t va_mask; /* bit-mask of attributes */ vtype_t va_type; /* vnode type (for create) */ mode32_t va_mode; /* file access mode */ uid32_t va_uid; /* owner user id */ gid32_t va_gid; /* owner group id */ dev32_t va_fsid; /* file system id (dev for now) */ u_longlong_t va_nodeid; /* node id */ nlink_t va_nlink; /* number of references to file */ u_offset_t va_size; /* file size in bytes */ timestruc32_t va_atime; /* time of last access */ timestruc32_t va_mtime; /* time of last modification */ timestruc32_t va_ctime; /* time of last status change */ dev32_t va_rdev; /* device the file represents */ uint32_t va_blksize; /* fundamental block size */ u_longlong_t va_nblocks; /* # of blocks allocated */ uint32_t va_seq; /* sequence number */ } vattr32_t; #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 #pragma pack() #endif #else /* not _SYSCALL32 */ #define vattr32 vattr typedef vattr_t vattr32_t; #endif /* _SYSCALL32 */ /* * Attributes of interest to the caller of setattr or getattr. */ #define AT_TYPE 0x0001 #define AT_MODE 0x0002 #define AT_UID 0x0004 #define AT_GID 0x0008 #define AT_FSID 0x0010 #define AT_NODEID 0x0020 #define AT_NLINK 0x0040 #define AT_SIZE 0x0080 #define AT_ATIME 0x0100 #define AT_MTIME 0x0200 #define AT_CTIME 0x0400 #define AT_RDEV 0x0800 #define AT_BLKSIZE 0x1000 #define AT_NBLOCKS 0x2000 /* 0x4000 */ /* unused */ #define AT_SEQ 0x8000 #define AT_ALL (AT_TYPE|AT_MODE|AT_UID|AT_GID|AT_FSID|AT_NODEID|\ AT_NLINK|AT_SIZE|AT_ATIME|AT_MTIME|AT_CTIME|\ AT_RDEV|AT_BLKSIZE|AT_NBLOCKS|AT_SEQ) #define AT_STAT (AT_MODE|AT_UID|AT_GID|AT_FSID|AT_NODEID|AT_NLINK|\ AT_SIZE|AT_ATIME|AT_MTIME|AT_CTIME|AT_RDEV|AT_TYPE) #define AT_TIMES (AT_ATIME|AT_MTIME|AT_CTIME) #define AT_NOSET (AT_NLINK|AT_RDEV|AT_FSID|AT_NODEID|AT_TYPE|\ AT_BLKSIZE|AT_NBLOCKS|AT_SEQ) /* * Modes. Some values same as S_xxx entries from stat.h for convenience. */ #define VSUID 04000 /* set user id on execution */ #define VSGID 02000 /* set group id on execution */ #define VSVTX 01000 /* save swapped text even after use */ /* * Permissions. */ #define VREAD 00400 #define VWRITE 00200 #define VEXEC 00100 #define MODEMASK 07777 /* mode bits plus permission bits */ #define PERMMASK 00777 /* permission bits */ /* * Check whether mandatory file locking is enabled. */ #define MANDMODE(mode) (((mode) & (VSGID|(VEXEC>>3))) == VSGID) #define MANDLOCK(vp, mode) ((vp)->v_type == VREG && MANDMODE(mode)) /* * Flags for vnode operations. */ enum rm { RMFILE, RMDIRECTORY }; /* rm or rmdir (remove) */ enum symfollow { NO_FOLLOW, FOLLOW }; /* follow symlinks (or not) */ enum vcexcl { NONEXCL, EXCL }; /* (non)excl create */ enum create { CRCREAT, CRMKNOD, CRMKDIR }; /* reason for create */ typedef enum rm rm_t; typedef enum symfollow symfollow_t; typedef enum vcexcl vcexcl_t; typedef enum create create_t; /* Vnode Events - Used by VOP_VNEVENT */ typedef enum vnevent { VE_SUPPORT = 0, /* Query */ VE_RENAME_SRC = 1, /* Rename, with vnode as source */ VE_RENAME_DEST = 2, /* Rename, with vnode as target/destination */ VE_REMOVE = 3, /* Remove of vnode's name */ VE_RMDIR = 4 /* Remove of directory vnode's name */ } vnevent_t; /* * Values for checking vnode open and map counts */ enum v_mode { V_READ, V_WRITE, V_RDORWR, V_RDANDWR }; typedef enum v_mode v_mode_t; #define V_TRUE 1 #define V_FALSE 0 /* * Structure used on VOP_GETSECATTR and VOP_SETSECATTR operations */ typedef struct vsecattr { uint_t vsa_mask; /* See below */ int vsa_aclcnt; /* ACL entry count */ void *vsa_aclentp; /* pointer to ACL entries */ int vsa_dfaclcnt; /* default ACL entry count */ void *vsa_dfaclentp; /* pointer to default ACL entries */ } vsecattr_t; /* vsa_mask values */ #define VSA_ACL 0x0001 #define VSA_ACLCNT 0x0002 #define VSA_DFACL 0x0004 #define VSA_DFACLCNT 0x0008 #define VSA_ACE 0x0010 #define VSA_ACECNT 0x0020 /* * Structure used by various vnode operations to determine * the context (pid, host, identity) of a caller. * * The cc_caller_id is used to identify one or more callers who invoke * operations, possibly on behalf of others. For example, the NFS * server could have it's own cc_caller_id which can be detected by * vnode/vfs operations or (FEM) monitors on those operations. New * caller IDs are generated by fs_new_caller_id(). */ typedef struct caller_context { pid_t cc_pid; /* Process ID of the caller */ int cc_sysid; /* System ID, used for remote calls */ u_longlong_t cc_caller_id; /* Identifier for (set of) caller(s) */ } caller_context_t; /* * Structure tags for function prototypes, defined elsewhere. */ struct pathname; struct fid; struct flock64; struct flk_callback; struct shrlock; struct page; struct seg; struct as; struct pollhead; /* * Operations on vnodes. Note: File systems should never operate directly * on a 'vnodeops' structure -- it WILL change in future releases! They * should use vn_make_ops() to create the structure. */ typedef struct vnodeops { const char *vnop_name; int (*vop_open)(vnode_t **, int, cred_t *); int (*vop_close)(vnode_t *, int, int, offset_t, cred_t *); int (*vop_read)(vnode_t *, uio_t *, int, cred_t *, caller_context_t *); int (*vop_write)(vnode_t *, uio_t *, int, cred_t *, caller_context_t *); int (*vop_ioctl)(vnode_t *, int, intptr_t, int, cred_t *, int *); int (*vop_setfl)(vnode_t *, int, int, cred_t *); int (*vop_getattr)(vnode_t *, vattr_t *, int, cred_t *); int (*vop_setattr)(vnode_t *, vattr_t *, int, cred_t *, caller_context_t *); int (*vop_access)(vnode_t *, int, int, cred_t *); int (*vop_lookup)(vnode_t *, char *, vnode_t **, struct pathname *, int, vnode_t *, cred_t *); int (*vop_create)(vnode_t *, char *, vattr_t *, vcexcl_t, int, vnode_t **, cred_t *, int); int (*vop_remove)(vnode_t *, char *, cred_t *); int (*vop_link)(vnode_t *, vnode_t *, char *, cred_t *); int (*vop_rename)(vnode_t *, char *, vnode_t *, char *, cred_t *); int (*vop_mkdir)(vnode_t *, char *, vattr_t *, vnode_t **, cred_t *); int (*vop_rmdir)(vnode_t *, char *, vnode_t *, cred_t *); int (*vop_readdir)(vnode_t *, uio_t *, cred_t *, int *); int (*vop_symlink)(vnode_t *, char *, vattr_t *, char *, cred_t *); int (*vop_readlink)(vnode_t *, uio_t *, cred_t *); int (*vop_fsync)(vnode_t *, int, cred_t *); void (*vop_inactive)(vnode_t *, cred_t *); int (*vop_fid)(vnode_t *, struct fid *); int (*vop_rwlock)(vnode_t *, int, caller_context_t *); void (*vop_rwunlock)(vnode_t *, int, caller_context_t *); int (*vop_seek)(vnode_t *, offset_t, offset_t *); int (*vop_cmp)(vnode_t *, vnode_t *); int (*vop_frlock)(vnode_t *, int, struct flock64 *, int, offset_t, struct flk_callback *, cred_t *); int (*vop_space)(vnode_t *, int, struct flock64 *, int, offset_t, cred_t *, caller_context_t *); int (*vop_realvp)(vnode_t *, vnode_t **); int (*vop_getpage)(vnode_t *, offset_t, size_t, uint_t *, struct page **, size_t, struct seg *, caddr_t, enum seg_rw, cred_t *); int (*vop_putpage)(vnode_t *, offset_t, size_t, int, cred_t *); int (*vop_map)(vnode_t *, offset_t, struct as *, caddr_t *, size_t, uchar_t, uchar_t, uint_t, cred_t *); int (*vop_addmap)(vnode_t *, offset_t, struct as *, caddr_t, size_t, uchar_t, uchar_t, uint_t, cred_t *); int (*vop_delmap)(vnode_t *, offset_t, struct as *, caddr_t, size_t, uint_t, uint_t, uint_t, cred_t *); int (*vop_poll)(vnode_t *, short, int, short *, struct pollhead **); int (*vop_dump)(vnode_t *, caddr_t, int, int); int (*vop_pathconf)(vnode_t *, int, ulong_t *, cred_t *); int (*vop_pageio)(vnode_t *, struct page *, u_offset_t, size_t, int, cred_t *); int (*vop_dumpctl)(vnode_t *, int, int *); void (*vop_dispose)(vnode_t *, struct page *, int, int, cred_t *); int (*vop_setsecattr)(vnode_t *, vsecattr_t *, int, cred_t *); int (*vop_getsecattr)(vnode_t *, vsecattr_t *, int, cred_t *); int (*vop_shrlock)(vnode_t *, int, struct shrlock *, int, cred_t *); int (*vop_vnevent)(vnode_t *, vnevent_t); } vnodeops_t; #ifdef _KERNEL extern int fop_open(vnode_t **, int, cred_t *); extern int fop_close(vnode_t *, int, int, offset_t, cred_t *); extern int fop_read(vnode_t *, uio_t *, int, cred_t *, caller_context_t *); extern int fop_write(vnode_t *, uio_t *, int, cred_t *, caller_context_t *); extern int fop_ioctl(vnode_t *, int, intptr_t, int, cred_t *, int *); extern int fop_setfl(vnode_t *, int, int, cred_t *); extern int fop_getattr(vnode_t *, vattr_t *, int, cred_t *); extern int fop_setattr(vnode_t *, vattr_t *, int, cred_t *, caller_context_t *); extern int fop_access(vnode_t *, int, int, cred_t *); extern int fop_lookup(vnode_t *, char *, vnode_t **, struct pathname *, int, vnode_t *, cred_t *); extern int fop_create(vnode_t *, char *, vattr_t *, vcexcl_t, int, vnode_t **, cred_t *, int); extern int fop_remove(vnode_t *vp, char *, cred_t *); extern int fop_link(vnode_t *, vnode_t *, char *, cred_t *); extern int fop_rename(vnode_t *, char *, vnode_t *, char *, cred_t *); extern int fop_mkdir(vnode_t *, char *, vattr_t *, vnode_t **, cred_t *); extern int fop_rmdir(vnode_t *, char *, vnode_t *, cred_t *); extern int fop_readdir(vnode_t *, uio_t *, cred_t *, int *); extern int fop_symlink(vnode_t *, char *, vattr_t *, char *, cred_t *); extern int fop_readlink(vnode_t *, uio_t *, cred_t *); extern int fop_fsync(vnode_t *, int, cred_t *); extern void fop_inactive(vnode_t *, cred_t *); extern int fop_fid(vnode_t *, struct fid *); extern int fop_rwlock(vnode_t *, int, caller_context_t *); extern void fop_rwunlock(vnode_t *, int, caller_context_t *); extern int fop_seek(vnode_t *, offset_t, offset_t *); extern int fop_cmp(vnode_t *, vnode_t *); extern int fop_frlock(vnode_t *, int, struct flock64 *, int, offset_t, struct flk_callback *, cred_t *); extern int fop_space(vnode_t *, int, struct flock64 *, int, offset_t, cred_t *, caller_context_t *); extern int fop_realvp(vnode_t *, vnode_t **); extern int fop_getpage(vnode_t *, offset_t, size_t, uint_t *, struct page **, size_t, struct seg *, caddr_t, enum seg_rw, cred_t *); extern int fop_putpage(vnode_t *, offset_t, size_t, int, cred_t *); extern int fop_map(vnode_t *, offset_t, struct as *, caddr_t *, size_t, uchar_t, uchar_t, uint_t, cred_t *cr); extern int fop_addmap(vnode_t *, offset_t, struct as *, caddr_t, size_t, uchar_t, uchar_t, uint_t, cred_t *); extern int fop_delmap(vnode_t *, offset_t, struct as *, caddr_t, size_t, uint_t, uint_t, uint_t, cred_t *); extern int fop_poll(vnode_t *, short, int, short *, struct pollhead **); extern int fop_dump(vnode_t *, caddr_t, int, int); extern int fop_pathconf(vnode_t *, int, ulong_t *, cred_t *); extern int fop_pageio(vnode_t *, struct page *, u_offset_t, size_t, int, cred_t *); extern int fop_dumpctl(vnode_t *, int, int *); extern void fop_dispose(vnode_t *, struct page *, int, int, cred_t *); extern int fop_setsecattr(vnode_t *, vsecattr_t *, int, cred_t *); extern int fop_getsecattr(vnode_t *, vsecattr_t *, int, cred_t *); extern int fop_shrlock(vnode_t *, int, struct shrlock *, int, cred_t *); extern int fop_vnevent(vnode_t *, vnevent_t); #endif /* _KERNEL */ #define VOP_OPEN(vpp, mode, cr) \ fop_open(vpp, mode, cr) #define VOP_CLOSE(vp, f, c, o, cr) \ fop_close(vp, f, c, o, cr) #define VOP_READ(vp, uiop, iof, cr, ct) \ fop_read(vp, uiop, iof, cr, ct) #define VOP_WRITE(vp, uiop, iof, cr, ct) \ fop_write(vp, uiop, iof, cr, ct) #define VOP_IOCTL(vp, cmd, a, f, cr, rvp) \ fop_ioctl(vp, cmd, a, f, cr, rvp) #define VOP_SETFL(vp, f, a, cr) \ fop_setfl(vp, f, a, cr) #define VOP_GETATTR(vp, vap, f, cr) \ fop_getattr(vp, vap, f, cr) #define VOP_SETATTR(vp, vap, f, cr, ct) \ fop_setattr(vp, vap, f, cr, ct) #define VOP_ACCESS(vp, mode, f, cr) \ fop_access(vp, mode, f, cr) #define VOP_LOOKUP(vp, cp, vpp, pnp, f, rdir, cr) \ fop_lookup(vp, cp, vpp, pnp, f, rdir, cr) #define VOP_CREATE(dvp, p, vap, ex, mode, vpp, cr, flag) \ fop_create(dvp, p, vap, ex, mode, vpp, cr, flag) #define VOP_REMOVE(dvp, p, cr) \ fop_remove(dvp, p, cr) #define VOP_LINK(tdvp, fvp, p, cr) \ fop_link(tdvp, fvp, p, cr) #define VOP_RENAME(fvp, fnm, tdvp, tnm, cr) \ fop_rename(fvp, fnm, tdvp, tnm, cr) #define VOP_MKDIR(dp, p, vap, vpp, cr) \ fop_mkdir(dp, p, vap, vpp, cr) #define VOP_RMDIR(dp, p, cdir, cr) \ fop_rmdir(dp, p, cdir, cr) #define VOP_READDIR(vp, uiop, cr, eofp) \ fop_readdir(vp, uiop, cr, eofp) #define VOP_SYMLINK(dvp, lnm, vap, tnm, cr) \ fop_symlink(dvp, lnm, vap, tnm, cr) #define VOP_READLINK(vp, uiop, cr) \ fop_readlink(vp, uiop, cr) #define VOP_FSYNC(vp, syncflag, cr) \ fop_fsync(vp, syncflag, cr) #define VOP_INACTIVE(vp, cr) \ fop_inactive(vp, cr) #define VOP_FID(vp, fidp) \ fop_fid(vp, fidp) #define VOP_RWLOCK(vp, w, ct) \ fop_rwlock(vp, w, ct) #define VOP_RWUNLOCK(vp, w, ct) \ fop_rwunlock(vp, w, ct) #define VOP_SEEK(vp, ooff, noffp) \ fop_seek(vp, ooff, noffp) #define VOP_CMP(vp1, vp2) \ fop_cmp(vp1, vp2) #define VOP_FRLOCK(vp, cmd, a, f, o, cb, cr) \ fop_frlock(vp, cmd, a, f, o, cb, cr) #define VOP_SPACE(vp, cmd, a, f, o, cr, ct) \ fop_space(vp, cmd, a, f, o, cr, ct) #define VOP_REALVP(vp1, vp2) \ fop_realvp(vp1, vp2) #define VOP_GETPAGE(vp, of, sz, pr, pl, ps, sg, a, rw, cr) \ fop_getpage(vp, of, sz, pr, pl, ps, sg, a, rw, cr) #define VOP_PUTPAGE(vp, of, sz, fl, cr) \ fop_putpage(vp, of, sz, fl, cr) #define VOP_MAP(vp, of, as, a, sz, p, mp, fl, cr) \ fop_map(vp, of, as, a, sz, p, mp, fl, cr) #define VOP_ADDMAP(vp, of, as, a, sz, p, mp, fl, cr) \ fop_addmap(vp, of, as, a, sz, p, mp, fl, cr) #define VOP_DELMAP(vp, of, as, a, sz, p, mp, fl, cr) \ fop_delmap(vp, of, as, a, sz, p, mp, fl, cr) #define VOP_POLL(vp, events, anyyet, reventsp, phpp) \ fop_poll(vp, events, anyyet, reventsp, phpp) #define VOP_DUMP(vp, addr, bn, count) \ fop_dump(vp, addr, bn, count) #define VOP_PATHCONF(vp, cmd, valp, cr) \ fop_pathconf(vp, cmd, valp, cr) #define VOP_PAGEIO(vp, pp, io_off, io_len, flags, cr) \ fop_pageio(vp, pp, io_off, io_len, flags, cr) #define VOP_DUMPCTL(vp, action, blkp) \ fop_dumpctl(vp, action, blkp) #define VOP_DISPOSE(vp, pp, flag, dn, cr) \ fop_dispose(vp, pp, flag, dn, cr) #define VOP_GETSECATTR(vp, vsap, f, cr) \ fop_getsecattr(vp, vsap, f, cr) #define VOP_SETSECATTR(vp, vsap, f, cr) \ fop_setsecattr(vp, vsap, f, cr) #define VOP_SHRLOCK(vp, cmd, shr, f, cr) \ fop_shrlock(vp, cmd, shr, f, cr) #define VOP_VNEVENT(vp, vnevent) \ fop_vnevent(vp, vnevent) #define VOPNAME_OPEN "open" #define VOPNAME_CLOSE "close" #define VOPNAME_READ "read" #define VOPNAME_WRITE "write" #define VOPNAME_IOCTL "ioctl" #define VOPNAME_SETFL "setfl" #define VOPNAME_GETATTR "getattr" #define VOPNAME_SETATTR "setattr" #define VOPNAME_ACCESS "access" #define VOPNAME_LOOKUP "lookup" #define VOPNAME_CREATE "create" #define VOPNAME_REMOVE "remove" #define VOPNAME_LINK "link" #define VOPNAME_RENAME "rename" #define VOPNAME_MKDIR "mkdir" #define VOPNAME_RMDIR "rmdir" #define VOPNAME_READDIR "readdir" #define VOPNAME_SYMLINK "symlink" #define VOPNAME_READLINK "readlink" #define VOPNAME_FSYNC "fsync" #define VOPNAME_INACTIVE "inactive" #define VOPNAME_FID "fid" #define VOPNAME_RWLOCK "rwlock" #define VOPNAME_RWUNLOCK "rwunlock" #define VOPNAME_SEEK "seek" #define VOPNAME_CMP "cmp" #define VOPNAME_FRLOCK "frlock" #define VOPNAME_SPACE "space" #define VOPNAME_REALVP "realvp" #define VOPNAME_GETPAGE "getpage" #define VOPNAME_PUTPAGE "putpage" #define VOPNAME_MAP "map" #define VOPNAME_ADDMAP "addmap" #define VOPNAME_DELMAP "delmap" #define VOPNAME_POLL "poll" #define VOPNAME_DUMP "dump" #define VOPNAME_PATHCONF "pathconf" #define VOPNAME_PAGEIO "pageio" #define VOPNAME_DUMPCTL "dumpctl" #define VOPNAME_DISPOSE "dispose" #define VOPNAME_GETSECATTR "getsecattr" #define VOPNAME_SETSECATTR "setsecattr" #define VOPNAME_SHRLOCK "shrlock" #define VOPNAME_VNEVENT "vnevent" /* * Flags for VOP_LOOKUP */ #define LOOKUP_DIR 0x01 /* want parent dir vp */ #define LOOKUP_XATTR 0x02 /* lookup up extended attr dir */ #define CREATE_XATTR_DIR 0x04 /* Create extended attr dir */ /* * Flags for VOP_RWLOCK/VOP_RWUNLOCK * VOP_RWLOCK will return the flag that was actually set, or -1 if none. */ #define V_WRITELOCK_TRUE (1) /* Request write-lock on the vnode */ #define V_WRITELOCK_FALSE (0) /* Request read-lock on the vnode */ /* * Flags for VOP_DUMPCTL */ #define DUMP_ALLOC 0 #define DUMP_FREE 1 #define DUMP_SCAN 2 /* * Public vnode manipulation functions. */ #ifdef _KERNEL vnode_t *vn_alloc(int); void vn_reinit(vnode_t *); void vn_recycle(vnode_t *); void vn_free(vnode_t *); int vn_is_readonly(vnode_t *); int vn_is_opened(vnode_t *, v_mode_t); int vn_is_mapped(vnode_t *, v_mode_t); int vn_can_change_zones(vnode_t *vp); int vn_has_flocks(vnode_t *); int vn_has_mandatory_locks(vnode_t *, int); int vn_has_cached_data(vnode_t *); void vn_setops(vnode_t *, vnodeops_t *); vnodeops_t *vn_getops(vnode_t *); int vn_matchops(vnode_t *, vnodeops_t *); int vn_matchopval(vnode_t *, char *, fs_generic_func_p); int vn_ismntpt(vnode_t *); struct vfs *vn_mountedvfs(vnode_t *); void vn_create_cache(void); void vn_destroy_cache(void); int vn_make_ops(const char *, const fs_operation_def_t *, vnodeops_t **); void vn_freevnodeops(vnodeops_t *); int vn_open(char *pnamep, enum uio_seg seg, int filemode, int createmode, struct vnode **vpp, enum create crwhy, mode_t umask); int vn_openat(char *pnamep, enum uio_seg seg, int filemode, int createmode, struct vnode **vpp, enum create crwhy, mode_t umask, struct vnode *startvp); int vn_create(char *pnamep, enum uio_seg seg, struct vattr *vap, enum vcexcl excl, int mode, struct vnode **vpp, enum create why, int flag, mode_t umask); int vn_createat(char *pnamep, enum uio_seg seg, struct vattr *vap, enum vcexcl excl, int mode, struct vnode **vpp, enum create why, int flag, mode_t umask, struct vnode *startvp); int vn_rdwr(enum uio_rw rw, struct vnode *vp, caddr_t base, ssize_t len, offset_t offset, enum uio_seg seg, int ioflag, rlim64_t ulimit, cred_t *cr, ssize_t *residp); void vn_rele(struct vnode *vp); void vn_rele_stream(struct vnode *vp); int vn_link(char *from, char *to, enum uio_seg seg); int vn_rename(char *from, char *to, enum uio_seg seg); int vn_renameat(vnode_t *fdvp, char *fname, vnode_t *tdvp, char *tname, enum uio_seg seg); int vn_remove(char *fnamep, enum uio_seg seg, enum rm dirflag); int vn_removeat(vnode_t *startvp, char *fnamep, enum uio_seg seg, enum rm dirflag); int vn_compare(vnode_t *vp1, vnode_t *vp2); int vn_vfswlock(struct vnode *vp); int vn_vfswlock_wait(struct vnode *vp); int vn_vfsrlock(struct vnode *vp); int vn_vfsrlock_wait(struct vnode *vp); void vn_vfsunlock(struct vnode *vp); int vn_vfswlock_held(struct vnode *vp); vnode_t *specvp(struct vnode *vp, dev_t dev, vtype_t type, struct cred *cr); vnode_t *makespecvp(dev_t dev, vtype_t type); vn_vfslocks_entry_t *vn_vfslocks_getlock(void *); void vn_vfslocks_rele(vn_vfslocks_entry_t *); void vn_copypath(struct vnode *src, struct vnode *dst); void vn_setpath_str(struct vnode *vp, const char *str, size_t len); void vn_setpath(vnode_t *rootvp, struct vnode *startvp, struct vnode *vp, const char *path, size_t plen); /* Vnode event notification */ void vnevent_rename_src(vnode_t *); void vnevent_rename_dest(vnode_t *); void vnevent_remove(vnode_t *); void vnevent_rmdir(vnode_t *); int vnevent_support(vnode_t *); /* Context identification */ u_longlong_t fs_new_caller_id(); int vn_vmpss_usepageio(vnode_t *); /* * Needed for use of IS_VMODSORT() in kernel. */ extern uint_t pvn_vmodsort_supported; #define VN_HOLD(vp) { \ mutex_enter(&(vp)->v_lock); \ (vp)->v_count++; \ mutex_exit(&(vp)->v_lock); \ } #define VN_RELE(vp) { \ vn_rele(vp); \ } #define VN_SET_VFS_TYPE_DEV(vp, vfsp, type, dev) { \ (vp)->v_vfsp = (vfsp); \ (vp)->v_type = (type); \ (vp)->v_rdev = (dev); \ } /* * Compare two vnodes for equality. In general this macro should be used * in preference to calling VOP_CMP directly. */ #define VN_CMP(VP1, VP2) ((VP1) == (VP2) ? 1 : \ ((VP1) && (VP2) && (vn_getops(VP1) == vn_getops(VP2)) ? \ VOP_CMP(VP1, VP2) : 0)) #endif /* _KERNEL */ /* * Flags to VOP_SETATTR/VOP_GETATTR. */ #define ATTR_UTIME 0x01 /* non-default utime(2) request */ #define ATTR_EXEC 0x02 /* invocation from exec(2) */ #define ATTR_COMM 0x04 /* yield common vp attributes */ #define ATTR_HINT 0x08 /* information returned will be `hint' */ #define ATTR_REAL 0x10 /* yield attributes of the real vp */ /* * Generally useful macros. */ #define VBSIZE(vp) ((vp)->v_vfsp->vfs_bsize) #define VTOZONE(vp) ((vp)->v_vfsp->vfs_zone) #define NULLVP ((struct vnode *)0) #define NULLVPP ((struct vnode **)0) #ifdef _KERNEL /* * Structure used while handling asynchronous VOP_PUTPAGE operations. */ struct async_reqs { struct async_reqs *a_next; /* pointer to next arg struct */ struct vnode *a_vp; /* vnode pointer */ u_offset_t a_off; /* offset in file */ uint_t a_len; /* size of i/o request */ int a_flags; /* flags to indicate operation type */ struct cred *a_cred; /* cred pointer */ ushort_t a_prealloced; /* set if struct is pre-allocated */ }; /* * VN_DISPOSE() -- given a page pointer, safely invoke VOP_DISPOSE(). */ #define VN_DISPOSE(pp, flag, dn, cr) { \ extern struct vnode kvp; \ if ((pp)->p_vnode != NULL && (pp)->p_vnode != &kvp) \ VOP_DISPOSE((pp)->p_vnode, (pp), (flag), (dn), (cr)); \ else if ((flag) == B_FREE) \ page_free((pp), (dn)); \ else \ page_destroy((pp), (dn)); \ } #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_VNODE_H */