5a27a66a81
illumos-gate revision 13742:b6bbdd77139c
174 lines
5.9 KiB
C
174 lines
5.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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/*
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* These are Consolidation Private interfaces and are subject to change.
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*/
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#ifndef _SYS_GFS_H
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#define _SYS_GFS_H
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#include <sys/types.h>
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#include <sys/vnode.h>
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#include <sys/vfs_opreg.h>
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#include <sys/mutex.h>
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#include <sys/dirent.h>
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#include <sys/extdirent.h>
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#include <sys/uio.h>
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#include <sys/list.h>
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#include <sys/pathname.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct gfs_opsvec {
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const char *gfsv_name; /* vnode description */
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const fs_operation_def_t *gfsv_template; /* ops template */
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vnodeops_t **gfsv_ops; /* ptr to result */
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} gfs_opsvec_t;
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int gfs_make_opsvec(gfs_opsvec_t *);
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#define GFS_CACHE_VNODE 0x1
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typedef struct gfs_dirent {
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char *gfse_name; /* entry name */
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vnode_t *(*gfse_ctor)(vnode_t *); /* constructor */
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int gfse_flags; /* flags */
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list_node_t gfse_link; /* dynamic list */
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vnode_t *gfse_vnode; /* cached vnode */
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} gfs_dirent_t;
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typedef enum gfs_type {
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GFS_DIR,
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GFS_FILE
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} gfs_type_t;
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typedef struct gfs_file {
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vnode_t *gfs_vnode; /* current vnode */
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vnode_t *gfs_parent; /* parent vnode */
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size_t gfs_size; /* size of private data structure */
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gfs_type_t gfs_type; /* type of vnode */
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int gfs_index; /* index in parent dir */
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ino64_t gfs_ino; /* inode for this vnode */
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} gfs_file_t;
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typedef int (*gfs_readdir_cb)(vnode_t *, void *, int *, offset_t *,
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offset_t *, void *, int);
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typedef int (*gfs_lookup_cb)(vnode_t *, const char *, vnode_t **, ino64_t *,
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cred_t *, int, int *, pathname_t *);
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typedef ino64_t (*gfs_inode_cb)(vnode_t *, int);
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typedef struct gfs_dir {
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gfs_file_t gfsd_file; /* generic file attributes */
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gfs_dirent_t *gfsd_static; /* statically defined entries */
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int gfsd_nstatic; /* # static entries */
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kmutex_t gfsd_lock; /* protects entries */
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int gfsd_maxlen; /* maximum name length */
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gfs_readdir_cb gfsd_readdir; /* readdir() callback */
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gfs_lookup_cb gfsd_lookup; /* lookup() callback */
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gfs_inode_cb gfsd_inode; /* get an inode number */
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} gfs_dir_t;
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struct vfs;
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extern vnode_t *gfs_file_create(size_t, vnode_t *, vnodeops_t *);
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extern vnode_t *gfs_dir_create(size_t, vnode_t *, vnodeops_t *,
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gfs_dirent_t *, gfs_inode_cb, int, gfs_readdir_cb, gfs_lookup_cb);
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extern vnode_t *gfs_root_create(size_t, struct vfs *, vnodeops_t *, ino64_t,
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gfs_dirent_t *, gfs_inode_cb, int, gfs_readdir_cb, gfs_lookup_cb);
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extern vnode_t *gfs_root_create_file(size_t, struct vfs *, vnodeops_t *,
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ino64_t);
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extern void *gfs_file_inactive(vnode_t *);
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extern void *gfs_dir_inactive(vnode_t *);
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extern int gfs_dir_case_lookup(vnode_t *, const char *, vnode_t **, cred_t *,
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int, int *, pathname_t *);
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extern int gfs_dir_lookup(vnode_t *, const char *, vnode_t **, cred_t *,
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int, int *, pathname_t *);
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extern int gfs_dir_readdir(vnode_t *, uio_t *, int *, void *, cred_t *,
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caller_context_t *, int flags);
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#define gfs_dir_lock(gd) mutex_enter(&(gd)->gfsd_lock)
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#define gfs_dir_unlock(gd) mutex_exit(&(gd)->gfsd_lock)
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#define GFS_DIR_LOCKED(gd) MUTEX_HELD(&(gd)->gfsd_lock)
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#define gfs_file_parent(vp) (((gfs_file_t *)(vp)->v_data)->gfs_parent)
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#define gfs_file_index(vp) (((gfs_file_t *)(vp)->v_data)->gfs_index)
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#define gfs_file_set_index(vp, idx) \
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(((gfs_file_t *)(vp)->v_data)->gfs_index = (idx))
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#define gfs_file_inode(vp) (((gfs_file_t *)(vp)->v_data)->gfs_ino)
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#define gfs_file_set_inode(vp, ino) \
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(((gfs_file_t *)(vp)->v_data)->gfs_ino = (ino))
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typedef struct gfs_readdir_state {
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void *grd_dirent; /* directory entry buffer */
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size_t grd_namlen; /* max file name length */
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size_t grd_ureclen; /* exported record size */
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ssize_t grd_oresid; /* original uio_resid */
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ino64_t grd_parent; /* inode of parent */
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ino64_t grd_self; /* inode of self */
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int grd_flags; /* flags from VOP_READDIR */
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} gfs_readdir_state_t;
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extern int gfs_readdir_init(gfs_readdir_state_t *, int, int, uio_t *, ino64_t,
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ino64_t, int);
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extern int gfs_readdir_emit(gfs_readdir_state_t *, uio_t *, offset_t, ino64_t,
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const char *, int);
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extern int gfs_readdir_emitn(gfs_readdir_state_t *, uio_t *, offset_t, ino64_t,
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unsigned long);
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extern int gfs_readdir_pred(gfs_readdir_state_t *, uio_t *, offset_t *);
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extern int gfs_readdir_fini(gfs_readdir_state_t *, int, int *, int);
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extern int gfs_get_parent_ino(vnode_t *, cred_t *, caller_context_t *,
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ino64_t *, ino64_t *);
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/*
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* Objects with real extended attributes will get their . and ..
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* readdir entries from the real xattr directory. GFS_STATIC_ENTRY_OFFSET
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* lets us skip right to the static entries in the GFS directory.
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*/
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#define GFS_STATIC_ENTRY_OFFSET ((offset_t)2)
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extern int gfs_lookup_dot(vnode_t **, vnode_t *, vnode_t *, const char *);
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extern int gfs_vop_lookup(vnode_t *, char *, vnode_t **, pathname_t *,
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int, vnode_t *, cred_t *, caller_context_t *, int *, pathname_t *);
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extern int gfs_vop_readdir(vnode_t *, uio_t *, cred_t *, int *,
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caller_context_t *, int);
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extern int gfs_vop_map(vnode_t *, offset_t, struct as *, caddr_t *,
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size_t, uchar_t, uchar_t, uint_t, cred_t *, caller_context_t *);
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extern void gfs_vop_inactive(vnode_t *, cred_t *, caller_context_t *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_GFS_H */
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