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/*
Unix SMB/CIFS implementation.
NTVFS structures and defines
Copyright (C) Andrew Tridgell 2003
Copyright (C) Stefan Metzmacher 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* modules can use the following to determine if the interface has changed */
/* version 1 -> 0 - make module stacking easier -- metze */
#define NTVFS_INTERFACE_VERSION 0
struct ntvfs_module_context;
/* each backend has to be one one of the following 3 basic types. In
* earlier versions of Samba backends needed to handle all types, now
* we implement them separately. */
enum ntvfs_type {NTVFS_DISK, NTVFS_PRINT, NTVFS_IPC};
/* the ntvfs operations structure - contains function pointers to
the backend implementations of each operation */
struct ntvfs_ops {
const char *name;
enum ntvfs_type type;
/* initial setup */
NTSTATUS (*connect)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, const char *sharename);
NTSTATUS (*disconnect)(struct ntvfs_module_context *ntvfs,
struct smbsrv_tcon *tcon);
/* path operations */
NTSTATUS (*unlink)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_unlink *unl);
NTSTATUS (*chkpath)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_chkpath *cp);
NTSTATUS (*qpathinfo)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_fileinfo *st);
NTSTATUS (*setpathinfo)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_setfileinfo *st);
NTSTATUS (*open)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_open *oi);
NTSTATUS (*mkdir)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_mkdir *md);
NTSTATUS (*rmdir)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_rmdir *rd);
NTSTATUS (*rename)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_rename *ren);
NTSTATUS (*copy)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_copy *cp);
/* directory search */
NTSTATUS (*search_first)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_search_first *io, void *private,
BOOL (*callback)(void *private, union smb_search_data *file));
NTSTATUS (*search_next)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_search_next *io, void *private,
BOOL (*callback)(void *private, union smb_search_data *file));
NTSTATUS (*search_close)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_search_close *io);
/* operations on open files */
NTSTATUS (*ioctl)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_ioctl *io);
NTSTATUS (*read)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_read *io);
NTSTATUS (*write)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_write *io);
NTSTATUS (*seek)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_seek *io);
NTSTATUS (*flush)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_flush *flush);
NTSTATUS (*close)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_close *io);
NTSTATUS (*exit)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req);
NTSTATUS (*lock)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_lock *lck);
NTSTATUS (*setfileinfo)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_setfileinfo *info);
NTSTATUS (*qfileinfo)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_fileinfo *info);
/* filesystem operations */
NTSTATUS (*fsinfo)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_fsinfo *fs);
/* printing specific operations */
NTSTATUS (*lpq)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, union smb_lpq *lpq);
/* trans2 interface - only used by CIFS backend to prover complete passthru for testing */
NTSTATUS (*trans2)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_trans2 *trans2);
/* trans interface - used by IPC backend for pipes and RAP calls */
NTSTATUS (*trans)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_trans2 *trans);
/* logoff - called when a vuid is closed */
NTSTATUS (*logoff)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req);
/* async_setup - called when a backend is processing a async request */
NTSTATUS (*async_setup)(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, void *private);
};
struct ntvfs_module_context {
struct ntvfs_module_context *prev, *next;
void *private_data;
const struct ntvfs_ops *ops;
int depth;
};
struct ntvfs_context {
enum ntvfs_type type;
/*
* linked list of module contexts
*/
struct ntvfs_module_context *modules;
};
/* this structure is used by backends to determine the size of some critical types */
struct ntvfs_critical_sizes {
int interface_version;
int sizeof_ntvfs_context;
int sizeof_ntvfs_module_context;
int sizeof_ntvfs_ops;
int sizeof_smbsrv_tcon;
int sizeof_smbsrv_request;
};
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