sys/vfs/hammer2/hammer2_ioctl.h

   1 /*
   2  * Copyright (c) 2011-2014 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@dragonflybsd.org>
   6  * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the
  17  *    distribution.
  18  * 3. Neither the name of The DragonFly Project nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific, prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  25  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  26  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  28  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  30  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  32  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #ifndef _VFS_HAMMER2_IOCTL_H_
  37 #define _VFS_HAMMER2_IOCTL_H_
  38
  39 #ifndef _SYS_IOCCOM_H_
  40 #include <sys/ioccom.h>
  41 #endif
  42 #ifndef _VFS_HAMMER2_DISK_H_
  43 #include "hammer2_disk.h"
  44 #endif
  45 #ifndef _VFS_HAMMER2_MOUNT_H_
  46 #include "hammer2_mount.h"
  47 #endif
  48
  49 /*
  50  * get_version
  51  */
  52 struct hammer2_ioc_version {
  53         int                     version;
  54         char                    reserved[256 - 4];
  55 };
  56
  57 typedef struct hammer2_ioc_version hammer2_ioc_version_t;
  58
  59 struct hammer2_ioc_recluster {
  60         int                     fd;
  61         char                    reserved[256 - 4];
  62 };
  63
  64 typedef struct hammer2_ioc_recluster hammer2_ioc_recluster_t;
  65
  66 /*
  67  * Ioctls to manage the volume->copyinfo[] array and to associate or
  68  * disassociate sockets
  69  */
  70 struct hammer2_ioc_remote {
  71         int                     copyid;
  72         int                     nextid; /* for iteration (get only) */
  73         int                     fd;     /* socket descriptor if applicable */
  74         int                     reserved03;
  75         int                     reserved04[8];
  76         hammer2_volconf_t       copy1;  /* copy spec */
  77         hammer2_volconf_t       copy2;  /* copy spec (rename ops only) */
  78 };
  79
  80 typedef struct hammer2_ioc_remote hammer2_ioc_remote_t;
  81
  82 /*
  83  * Ioctls to manage PFSs
  84  *
  85  * PFSs can be clustered by matching their pfs_clid, and the PFSs making up
  86  * a cluster can be uniquely identified by combining the vol_id with
  87  * the pfs_clid.
  88  */
  89 struct hammer2_ioc_pfs {
  90         hammer2_key_t           name_key;       /* super-root directory scan */
  91         hammer2_key_t           name_next;      /* (GET only) */
  92         uint8_t                 pfs_type;       /* e.g. MASTER, SLAVE, ... */
  93         uint8_t                 pfs_subtype;    /* e.g. SNAPSHOT */
  94         uint8_t                 reserved0012;
  95         uint8_t                 reserved0013;
  96         uint32_t                pfs_flags;
  97         uint64_t                reserved0018;
  98         uuid_t                  pfs_fsid;       /* identifies PFS instance */
  99         uuid_t                  pfs_clid;       /* identifies PFS cluster */
 100         char                    name[NAME_MAX+1]; /* device@name mtpt */
 101 };
 102
 103 typedef struct hammer2_ioc_pfs hammer2_ioc_pfs_t;
 104
 105 /*
 106  * Ioctls to manage inodes
 107  */
 108 struct hammer2_ioc_inode {
 109         uint32_t                flags;
 110         void                    *kdata;
 111         hammer2_key_t           data_count;
 112         hammer2_key_t           inode_count;
 113         hammer2_inode_data_t    ip_data;
 114 };
 115
 116 typedef struct hammer2_ioc_inode hammer2_ioc_inode_t;
 117
 118 #define HAMMER2IOC_INODE_FLAG_IQUOTA    0x00000001
 119 #define HAMMER2IOC_INODE_FLAG_DQUOTA    0x00000002
 120 #define HAMMER2IOC_INODE_FLAG_COPIES    0x00000004
 121 #define HAMMER2IOC_INODE_FLAG_CHECK     0x00000008
 122 #define HAMMER2IOC_INODE_FLAG_COMP      0x00000010
 123
 124 /*
 125  * Ioctl for bulkfree scan
 126  */
 127 struct hammer2_ioc_bulkfree {
 128         hammer2_off_t           sbase;  /* starting storage offset */
 129         hammer2_off_t           sstop;  /* (set on return) */
 130         size_t                  size;   /* swapable kernel memory to use */
 131         hammer2_off_t           count_allocated;  /* alloc fixups this run */
 132         hammer2_off_t           count_freed;      /* bytes freed this run */
 133         hammer2_off_t           total_fragmented; /* merged result */
 134         hammer2_off_t           total_allocated;  /* merged result */
 135         hammer2_off_t           total_scanned;    /* bytes of storage */
 136 };
 137
 138 typedef struct hammer2_ioc_bulkfree hammer2_ioc_bulkfree_t;
 139
 140 /*
 141  * Unconditionally delete a hammer2 directory entry or inode number
 142  */
 143 struct hammer2_ioc_destroy {
 144         enum { HAMMER2_DELETE_NOP,
 145                HAMMER2_DELETE_FILE,
 146                HAMMER2_DELETE_INUM } cmd;
 147         char                    path[HAMMER2_INODE_MAXNAME];
 148         hammer2_key_t           inum;
 149 };
 150
 151 typedef struct hammer2_ioc_destroy hammer2_ioc_destroy_t;
 152
 153 /*
 154  * Ioctl list
 155  */
 156
 157 #define HAMMER2IOC_VERSION_GET  _IOWR('h', 64, struct hammer2_ioc_version)
 158 #define HAMMER2IOC_RECLUSTER    _IOWR('h', 65, struct hammer2_ioc_recluster)
 159
 160 #define HAMMER2IOC_REMOTE_SCAN  _IOWR('h', 68, struct hammer2_ioc_remote)
 161 #define HAMMER2IOC_REMOTE_ADD   _IOWR('h', 69, struct hammer2_ioc_remote)
 162 #define HAMMER2IOC_REMOTE_DEL   _IOWR('h', 70, struct hammer2_ioc_remote)
 163 #define HAMMER2IOC_REMOTE_REP   _IOWR('h', 71, struct hammer2_ioc_remote)
 164
 165 #define HAMMER2IOC_SOCKET_GET   _IOWR('h', 76, struct hammer2_ioc_remote)
 166 #define HAMMER2IOC_SOCKET_SET   _IOWR('h', 77, struct hammer2_ioc_remote)
 167
 168 #define HAMMER2IOC_PFS_GET      _IOWR('h', 80, struct hammer2_ioc_pfs)
 169 #define HAMMER2IOC_PFS_CREATE   _IOWR('h', 81, struct hammer2_ioc_pfs)
 170 #define HAMMER2IOC_PFS_DELETE   _IOWR('h', 82, struct hammer2_ioc_pfs)
 171 #define HAMMER2IOC_PFS_LOOKUP   _IOWR('h', 83, struct hammer2_ioc_pfs)
 172 #define HAMMER2IOC_PFS_SNAPSHOT _IOWR('h', 84, struct hammer2_ioc_pfs)
 173
 174 #define HAMMER2IOC_INODE_GET    _IOWR('h', 86, struct hammer2_ioc_inode)
 175 #define HAMMER2IOC_INODE_SET    _IOWR('h', 87, struct hammer2_ioc_inode)
 176
 177 /*#define HAMMER2IOC_INODE_COMP_SET     _IOWR('h', 88, struct hammer2_ioc_inode) //set compression mode on inode
 178 #define HAMMER2IOC_INODE_COMP_REC_SET   _IOWR('h', 89, struct hammer2_ioc_inode)
 179 #define HAMMER2IOC_INODE_COMP_REC_SET2  _IOWR('h', 90, struct hammer2_ioc_inode)*/
 180 #define HAMMER2IOC_DEBUG_DUMP   _IOWR('h', 91, int)
 181 #define HAMMER2IOC_BULKFREE_SCAN _IOWR('h', 92, struct hammer2_ioc_bulkfree)
 182 #define HAMMER2IOC_BULKFREE_ASYNC _IOWR('h', 93, struct hammer2_ioc_bulkfree)
 183
 184 /*
 185  * Delete a directory entry or inode number unconditionally.
 186  */
 187 #define HAMMER2IOC_DESTROY      _IOWR('h', 94, struct hammer2_ioc_destroy)
 188
 189 #endif /* !_VFS_HAMMER2_IOCTL_H_ */