wmi-1.3.16 from opsview.com
This commit is contained in:
Are Casilla
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/*
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Unix SMB/CIFS implementation.
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POSIX NTVFS backend - structure definitions
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Copyright (C) Andrew Tridgell 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _VFS_POSIX_H_
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#define _VFS_POSIX_H_
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#include "librpc/gen_ndr/xattr.h"
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#include "system/filesys.h"
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#include "ntvfs/ntvfs.h"
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#include "ntvfs/common/proto.h"
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#include "dsdb/samdb/samdb.h"
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/* this is the private structure for the posix vfs backend. It is used
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to hold per-connection (per tree connect) state information */
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struct pvfs_state {
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struct ntvfs_module_context *ntvfs;
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const char *base_directory;
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struct GUID *base_fs_uuid;
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const char *share_name;
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uint_t flags;
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struct pvfs_mangle_context *mangle_ctx;
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struct brl_context *brl_context;
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struct odb_context *odb_context;
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struct notify_context *notify_context;
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struct sidmap_context *sidmap;
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/* a list of pending async requests. Needed to support
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ntcancel */
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struct pvfs_wait *wait_list;
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/* the sharing violation timeout */
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uint_t sharing_violation_delay;
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/* filesystem attributes (see FS_ATTR_*) */
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uint32_t fs_attribs;
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/* if posix:eadb is set, then this gets setup */
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struct tdb_wrap *ea_db;
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/* the allocation size rounding */
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uint32_t alloc_size_rounding;
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struct {
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/* the open files as DLINKLIST */
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struct pvfs_file *list;
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} files;
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struct {
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/* an id tree mapping open search ID to a pvfs_search_state structure */
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struct idr_context *idtree;
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/* the open searches as DLINKLIST */
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struct pvfs_search_state *list;
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/* how long to keep inactive searches around for */
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uint_t inactivity_time;
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} search;
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/* used to accelerate acl mapping */
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struct {
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const struct dom_sid *creator_owner;
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const struct dom_sid *creator_group;
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} sid_cache;
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/* the acl backend */
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const struct pvfs_acl_ops *acl_ops;
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};
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/* this is the basic information needed about a file from the filesystem */
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struct pvfs_dos_fileinfo {
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NTTIME create_time;
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NTTIME access_time;
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NTTIME write_time;
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NTTIME change_time;
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uint32_t attrib;
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uint64_t alloc_size;
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uint32_t nlink;
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uint32_t ea_size;
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uint64_t file_id;
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uint32_t flags;
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};
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/*
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this is the structure returned by pvfs_resolve_name(). It holds the posix details of
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a filename passed by the client to any function
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*/
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struct pvfs_filename {
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const char *original_name;
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char *full_name;
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const char *stream_name; /* does not include :$DATA suffix */
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uint32_t stream_id; /* this uses a hash, so is probabilistic */
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BOOL has_wildcard;
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BOOL exists; /* true if the base filename exists */
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BOOL stream_exists; /* true if the stream exists */
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struct stat st;
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struct pvfs_dos_fileinfo dos;
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};
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/* open file handle state - encapsulates the posix fd
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Note that this is separated from the pvfs_file structure in order
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to cope with the openx DENY_DOS semantics where a 2nd DENY_DOS open
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on the same connection gets the same low level filesystem handle,
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rather than a new handle
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*/
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struct pvfs_file_handle {
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int fd;
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struct pvfs_filename *name;
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/* a unique file key to be used for open file locking */
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DATA_BLOB odb_locking_key;
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uint32_t create_options;
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/* this is set by the mode_information level. What does it do? */
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uint32_t mode;
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/* yes, we need 2 independent positions ... */
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uint64_t seek_offset;
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uint64_t position;
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BOOL have_opendb_entry;
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/* we need this hook back to our parent for lock destruction */
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struct pvfs_state *pvfs;
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/* have we set a sticky write time that we should remove on close */
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BOOL sticky_write_time;
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};
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/* open file state */
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struct pvfs_file {
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struct pvfs_file *next, *prev;
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struct pvfs_file_handle *handle;
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struct ntvfs_handle *ntvfs;
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struct pvfs_state *pvfs;
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uint32_t impersonation;
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uint32_t share_access;
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uint32_t access_mask;
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/* a list of pending locks - used for locking cancel operations */
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struct pvfs_pending_lock *pending_list;
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/* a file handle to be used for byte range locking */
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struct brl_handle *brl_handle;
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/* a count of active locks - used to avoid calling brl_close on
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file close */
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uint64_t lock_count;
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/* for directories, a buffer of pending notify events */
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struct pvfs_notify_buffer *notify_buffer;
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/* for directories, the state of an incomplete SMB2 Find */
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struct pvfs_search_state *search;
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};
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/* the state of a search started with pvfs_search_first() */
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struct pvfs_search_state {
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struct pvfs_search_state *prev, *next;
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struct pvfs_state *pvfs;
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uint16_t handle;
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off_t current_index;
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uint16_t search_attrib;
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uint16_t must_attrib;
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struct pvfs_dir *dir;
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time_t last_used;
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uint_t num_ea_names;
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struct ea_name *ea_names;
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struct timed_event *te;
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};
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/* flags to pvfs_resolve_name() */
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#define PVFS_RESOLVE_WILDCARD (1<<0)
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#define PVFS_RESOLVE_STREAMS (1<<1)
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/* flags in pvfs->flags */
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#define PVFS_FLAG_CI_FILESYSTEM (1<<0) /* the filesystem is case insensitive */
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#define PVFS_FLAG_MAP_ARCHIVE (1<<1)
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#define PVFS_FLAG_MAP_SYSTEM (1<<2)
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#define PVFS_FLAG_MAP_HIDDEN (1<<3)
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#define PVFS_FLAG_READONLY (1<<4)
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#define PVFS_FLAG_STRICT_SYNC (1<<5)
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#define PVFS_FLAG_STRICT_LOCKING (1<<6)
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#define PVFS_FLAG_XATTR_ENABLE (1<<7)
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#define PVFS_FLAG_FAKE_OPLOCKS (1<<8)
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/* forward declare some anonymous structures */
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struct pvfs_dir;
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/* types of notification for pvfs wait events */
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enum pvfs_wait_notice {PVFS_WAIT_EVENT, PVFS_WAIT_TIMEOUT, PVFS_WAIT_CANCEL};
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#define PVFS_EADB "posix:eadb"
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#define PVFS_XATTR "posix:xattr"
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#define PVFS_FAKE_OPLOCKS "posix:fakeoplocks"
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#define PVFS_SHARE_DELAY "posix:sharedelay"
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#define PVFS_ALLOCATION_ROUNDING "posix:allocationrounding"
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#define PVFS_SEARCH_INACTIVITY "posix:searchinactivity"
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#define PVFS_ACL "posix:acl"
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#define PVFS_XATTR_DEFAULT True
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#define PVFS_FAKE_OPLOCKS_DEFAULT False
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#define PVFS_SHARE_DELAY_DEFAULT 1000000
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#define PVFS_ALLOCATION_ROUNDING_DEFAULT 512
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#define PVFS_SEARCH_INACTIVITY_DEFAULT 300
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struct pvfs_acl_ops {
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const char *name;
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NTSTATUS (*acl_load)(struct pvfs_state *, struct pvfs_filename *, int , TALLOC_CTX *,
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struct security_descriptor **);
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NTSTATUS (*acl_save)(struct pvfs_state *, struct pvfs_filename *, int , struct security_descriptor *);
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};
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#include "ntvfs/posix/vfs_posix_proto.h"
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#endif /* _VFS_POSIX_H_ */
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