fsal_types.h

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/*
 *
 *
 * Copyright CEA/DAM/DIF  (2008)
 * contributeur : Philippe DENIEL   philippe.deniel@cea.fr
 *                Thomas LEIBOVICI  thomas.leibovici@cea.fr
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * ---------------------------------------
 */

#ifndef _FSAL_TYPES_SPECIFIC_H
#define _FSAL_TYPES_SPECIFIC_H

/* >> write here the includes your need for your filesystem << */

  /* Change bellow the label of your filesystem configuration
   * section in the GANESHA's configuration file.
   */
# define CONF_LABEL_FS_SPECIFIC   "ZFS"

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/param.h>
#include <inttypes.h>
#include "config_parsing.h"
#include "err_fsal.h"

#include <libzfswrap.h>



  /* In this section, you must define your own FSAL internal types.
   * Here are some template types :
   */

#include "fsal_glue_const.h"

#define fsal_handle_t zfsfsal_handle_t
#define fsal_op_context_t zfsfsal_op_context_t
#define fsal_file_t zfsfsal_file_t
#define fsal_dir_t zfsfsal_dir_t
#define fsal_export_context_t zfsfsal_export_context_t
#define fsal_lockdesc_t zfsfsal_lockdesc_t
#define fsal_cookie_t zfsfsal_cookie_t
#define fs_specific_initinfo_t zfsfs_specific_initinfo_t
#define fsal_cred_t zfsfsal_cred_t

typedef union
{
  struct
  {
    inogen_t zfs_handle;
    fsal_nodetype_t type;
    char i_snap;
  } data;
  char pad[FSAL_HANDLE_T_SIZE];
} zfsfsal_handle_t;

typedef struct
{
  fsal_staticfsinfo_t * fe_static_fs_info;     /* Must be the first entry in this structure */

  zfsfsal_handle_t root_handle;
  libzfswrap_vfs_t *p_vfs;

} zfsfsal_export_context_t;

#define FSAL_EXPORT_CONTEXT_SPECIFIC( pexport_context ) (uint64_t)(FSAL_Handle_to_RBTIndex( &(pexport_context->root_handle), 0 ) )

typedef struct
{
  zfsfsal_export_context_t *export_context; /* Must be the first member of this structure */
  struct user_credentials credential;
  int thread_connect_array[32];

} zfsfsal_op_context_t;

#define FSAL_OP_CONTEXT_TO_UID( pcontext ) ( pcontext->credential.user )
#define FSAL_OP_CONTEXT_TO_GID( pcontext ) ( pcontext->credential.group )

typedef struct
{
  creden_t cred;
  libzfswrap_vnode_t *p_vnode;
  zfsfsal_handle_t handle;

} zfsfsal_dir_t;

typedef struct
{
  creden_t cred;
  zfsfsal_handle_t handle;
  off_t current_offset;
  int flags;
  libzfswrap_vnode_t *p_vnode;
  int is_closed;

} zfsfsal_file_t;

typedef union
{
  struct
  {
    off_t cookie;
  } data;
  char pad[FSAL_COOKIE_T_SIZE];
} zfsfsal_cookie_t;

#define FSAL_SET_PCOOKIE_BY_OFFSET( __pfsal_cookie, __cookie )           \
do                                                                       \
{                                                                        \
   ((zfsfsal_cookie_t *)__pfsal_cookie)->data.cookie = (off_t)__cookie ; \
} while( 0 )

#define FSAL_SET_OFFSET_BY_PCOOKIE( __pfsal_cookie, __cookie )           \
do                                                                       \
{                                                                        \
   __cookie =  ((zfsfsal_cookie_t *)__pfsal_cookie)->data.cookie ;       \
} while( 0 )

//#define FSAL_READDIR_FROM_BEGINNING 0

typedef struct
{
  char psz_zpool[FSAL_MAX_NAME_LEN];

  int auto_snapshots;

  char psz_snap_hourly_prefix[FSAL_MAX_NAME_LEN];
  int snap_hourly_time;
  int snap_hourly_number;

  char psz_snap_daily_prefix[FSAL_MAX_NAME_LEN];
  int snap_daily_time;
  int snap_daily_number;

} zfsfs_specific_initinfo_t;

#endif                          /* _FSAL_TYPES_SPECIFIC_H */