| 1 | /* $Id: vboxfs_vnode.h 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VirtualBox File System for Solaris Guests, VNode header.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef GA_INCLUDED_SRC_solaris_SharedFolders_vboxfs_vnode_h
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| 28 | #define GA_INCLUDED_SRC_solaris_SharedFolders_vboxfs_vnode_h
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| 29 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 30 | # pragma once
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| 31 | #endif
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| 32 |
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| 33 | #include <sys/t_lock.h>
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| 34 | #include <sys/avl.h>
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| 35 | #include <vm/seg.h>
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| 36 | #include <vm/seg_vn.h>
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| 37 |
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| 38 | #ifdef __cplusplus
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| 39 | extern "C" {
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| 40 | #endif
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| 41 |
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| 42 | /*
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| 43 | * sfnode is the file system dependent vnode data for vboxsf.
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| 44 | * sfnode's also track all files ever accessed, both open and closed.
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| 45 | * It duplicates some of the information in vnode, since it holds
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| 46 | * information for files that may have been completely closed.
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| 47 | *
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| 48 | * The sfnode_t's are stored in an AVL tree sorted by:
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| 49 | * sf_sffs, sf_path
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| 50 | */
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| 51 | typedef struct sfnode {
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| 52 | avl_node_t sf_linkage; /* AVL tree linkage */
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| 53 | struct sffs_data *sf_sffs; /* containing mounted file system */
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| 54 | char *sf_path; /* full pathname to file or dir */
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| 55 | uint64_t sf_ino; /* assigned unique ID number */
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| 56 | vnode_t *sf_vnode; /* vnode if active */
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| 57 | sfp_file_t *sf_file; /* non NULL if open */
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| 58 | int sf_flag; /* last opened file-mode. */
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| 59 | struct sfnode *sf_parent; /* parent sfnode of this one */
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| 60 | uint16_t sf_children; /* number of children sfnodes */
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| 61 | uint8_t sf_type; /* VDIR or VREG */
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| 62 | uint8_t sf_is_stale; /* this is stale and should be purged */
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| 63 | sffs_stat_t sf_stat; /* cached file attrs for this node */
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| 64 | uint64_t sf_stat_time; /* last-modified time of sf_stat */
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| 65 | sffs_dirents_t *sf_dir_list; /* list of entries for this directory */
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| 66 | } sfnode_t;
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| 67 |
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| 68 | #define VN2SFN(vp) ((sfnode_t *)(vp)->v_data)
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| 69 |
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| 70 | #ifdef _KERNEL
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| 71 | extern int sffs_vnode_init(void);
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| 72 | extern void sffs_vnode_fini(void);
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| 73 | extern sfnode_t *sfnode_make(struct sffs_data *, char *, vtype_t, sfp_file_t *,
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| 74 | sfnode_t *parent, sffs_stat_t *, uint64_t stat_time);
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| 75 | extern vnode_t *sfnode_get_vnode(sfnode_t *);
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| 76 |
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| 77 | /*
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| 78 | * Purge all cached information about a shared file system at unmount
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| 79 | */
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| 80 | extern int sffs_purge(struct sffs_data *);
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| 81 |
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| 82 | extern kmutex_t sffs_lock;
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| 83 | #endif /* _KERNEL */
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| 84 |
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| 85 | #ifdef __cplusplus
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| 86 | }
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| 87 | #endif
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| 88 |
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| 89 | #endif /* !GA_INCLUDED_SRC_solaris_SharedFolders_vboxfs_vnode_h */
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