sys/fs/v7fs/v7fs_extern.c

   1 /*      $NetBSD: v7fs_extern.c,v 1.4 2014/12/29 15:29:38 hannken Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2004, 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: v7fs_extern.c,v 1.4 2014/12/29 15:29:38 hannken Exp $");
  34
  35 #if defined _KERNEL_OPT
  36 #include "opt_v7fs.h"
  37 #endif
  38 #include <sys/resource.h>
  39 #include <sys/param.h>
  40 #include <sys/vnode.h>
  41 #include <sys/mount.h>
  42 #include <sys/module.h>
  43
  44 #include <miscfs/fifofs/fifo.h>
  45 #include <miscfs/genfs/genfs.h>
  46 #include <miscfs/genfs/genfs_node.h>
  47
  48 #include <fs/v7fs/v7fs_extern.h>
  49
  50 MODULE(MODULE_CLASS_VFS, v7fs, NULL);
  51
  52 /* External interfaces */
  53
  54 int (**v7fs_vnodeop_p)(void *); /* filled by getnewvnode (vnode.h) */
  55
  56 const struct vnodeopv_entry_desc v7fs_vnodeop_entries[] = {
  57         { &vop_default_desc, vn_default_error },
  58         { &vop_lookup_desc, v7fs_lookup },              /* lookup */
  59         { &vop_create_desc, v7fs_create },              /* create */
  60         { &vop_mknod_desc, v7fs_mknod },                /* mknod */
  61         { &vop_open_desc, v7fs_open },                  /* open */
  62         { &vop_close_desc, v7fs_close },                /* close */
  63         { &vop_access_desc, v7fs_access },              /* access */
  64         { &vop_getattr_desc, v7fs_getattr },            /* getattr */
  65         { &vop_setattr_desc, v7fs_setattr },            /* setattr */
  66         { &vop_read_desc, v7fs_read },                  /* read */
  67         { &vop_write_desc, v7fs_write },                /* write */
  68         { &vop_fallocate_desc, genfs_eopnotsupp },      /* fallocate */
  69         { &vop_fdiscard_desc, genfs_eopnotsupp },       /* fdiscard */
  70         { &vop_fcntl_desc, genfs_fcntl },               /* fcntl */
  71         { &vop_ioctl_desc, genfs_enoioctl },            /* ioctl */
  72         { &vop_poll_desc, genfs_poll },                 /* poll */
  73         { &vop_kqfilter_desc, genfs_kqfilter },         /* kqfilter */
  74         { &vop_revoke_desc, genfs_revoke },             /* revoke */
  75         { &vop_mmap_desc, genfs_mmap },                 /* mmap */
  76         { &vop_fsync_desc, v7fs_fsync },                /* fsync */
  77         { &vop_seek_desc, genfs_seek },                 /* seek */
  78         { &vop_remove_desc, v7fs_remove },              /* remove */
  79         { &vop_link_desc, v7fs_link },                  /* link */
  80         { &vop_rename_desc, v7fs_rename },              /* rename */
  81         { &vop_mkdir_desc, v7fs_mkdir },                /* mkdir */
  82         { &vop_rmdir_desc, v7fs_rmdir },                /* rmdir */
  83         { &vop_symlink_desc, v7fs_symlink },            /* symlink */
  84         { &vop_readdir_desc, v7fs_readdir },            /* readdir */
  85         { &vop_readlink_desc, v7fs_readlink },          /* readlink */
  86         { &vop_abortop_desc, genfs_abortop },           /* abortop */
  87         { &vop_inactive_desc, v7fs_inactive },          /* inactive */
  88         { &vop_reclaim_desc, v7fs_reclaim },            /* reclaim */
  89         { &vop_lock_desc, genfs_lock },                 /* lock */
  90         { &vop_unlock_desc, genfs_unlock },             /* unlock */
  91         { &vop_bmap_desc, v7fs_bmap },                  /* bmap */
  92         { &vop_strategy_desc, v7fs_strategy },          /* strategy */
  93         { &vop_print_desc, v7fs_print },                /* print */
  94         { &vop_islocked_desc, genfs_islocked },         /* islocked */
  95         { &vop_pathconf_desc, v7fs_pathconf },          /* pathconf */
  96         { &vop_advlock_desc, v7fs_advlock },            /* advlock */
  97         { &vop_bwrite_desc, vn_bwrite },                /* bwrite */
  98         { &vop_getpages_desc, genfs_getpages },         /* getpages */
  99         { &vop_putpages_desc, genfs_putpages },         /* putpages */
 100         { NULL, NULL }
 101 };
 102
 103
 104 int (**v7fs_specop_p)(void *);
 105 const struct vnodeopv_entry_desc v7fs_specop_entries[] = {
 106         { &vop_default_desc, vn_default_error },
 107         { &vop_lookup_desc, spec_lookup },              /* lookup */
 108         { &vop_create_desc, spec_create },              /* create xxx*/
 109         { &vop_mknod_desc, spec_mknod },                /* mknod xxx*/
 110         { &vop_open_desc, spec_open },                  /* open */
 111         { &vop_close_desc, spec_close },                /* close */
 112         { &vop_access_desc, v7fs_access },              /* access */
 113         { &vop_getattr_desc, v7fs_getattr },            /* getattr */
 114         { &vop_setattr_desc, v7fs_setattr },            /* setattr */
 115         { &vop_read_desc, spec_read },                  /* read */
 116         { &vop_write_desc, spec_write },                /* write */
 117         { &vop_fallocate_desc, spec_fallocate },        /* fallocate */
 118         { &vop_fdiscard_desc, spec_fdiscard },          /* fdiscard */
 119         { &vop_ioctl_desc, spec_ioctl },                /* ioctl */
 120         { &vop_fcntl_desc, genfs_fcntl },               /* fcntl */
 121         { &vop_poll_desc, spec_poll },                  /* poll */
 122         { &vop_kqfilter_desc, spec_kqfilter },          /* kqfilter */
 123         { &vop_revoke_desc, spec_revoke },              /* revoke */
 124         { &vop_mmap_desc, spec_mmap },                  /* mmap */
 125         { &vop_fsync_desc, spec_fsync },                /* fsync */
 126         { &vop_seek_desc, spec_seek },                  /* seek */
 127         { &vop_remove_desc, spec_remove },              /* remove */
 128         { &vop_link_desc, spec_link },                  /* link */
 129         { &vop_rename_desc, spec_rename },              /* rename */
 130         { &vop_mkdir_desc, spec_mkdir },                /* mkdir */
 131         { &vop_rmdir_desc, spec_rmdir },                /* rmdir */
 132         { &vop_symlink_desc, spec_symlink },            /* symlink */
 133         { &vop_readdir_desc, spec_readdir },            /* readdir */
 134         { &vop_readlink_desc, spec_readlink },          /* readlink */
 135         { &vop_abortop_desc, spec_abortop },            /* abortop */
 136         { &vop_inactive_desc, v7fs_inactive },          /* inactive */
 137         { &vop_reclaim_desc, v7fs_reclaim },            /* reclaim */
 138         { &vop_lock_desc, genfs_lock },                 /* lock */
 139         { &vop_unlock_desc, genfs_unlock },             /* unlock */
 140         { &vop_bmap_desc, spec_bmap },                  /* bmap */
 141         { &vop_strategy_desc, spec_strategy },          /* strategy */
 142         { &vop_print_desc, spec_print },                /* print */
 143         { &vop_islocked_desc, genfs_islocked },         /* islocked */
 144         { &vop_pathconf_desc, spec_pathconf },          /* pathconf */
 145         { &vop_advlock_desc, spec_advlock },            /* advlock */
 146         { &vop_bwrite_desc, vn_bwrite },                /* bwrite */
 147         { &vop_getpages_desc, spec_getpages },          /* getpages */
 148         { &vop_putpages_desc, spec_putpages },          /* putpages */
 149         { NULL, NULL }
 150 };
 151
 152 int (**v7fs_fifoop_p)(void *);
 153 const struct vnodeopv_entry_desc v7fs_fifoop_entries[] = {
 154         { &vop_default_desc, vn_default_error },
 155         { &vop_lookup_desc, vn_fifo_bypass },           /* lookup */
 156         { &vop_create_desc, vn_fifo_bypass },           /* create */
 157         { &vop_mknod_desc, vn_fifo_bypass },            /* mknod */
 158         { &vop_open_desc, vn_fifo_bypass },             /* open */
 159         { &vop_close_desc, vn_fifo_bypass },            /* close */
 160         { &vop_access_desc, v7fs_access },              /* access */
 161         { &vop_getattr_desc, v7fs_getattr },            /* getattr */
 162         { &vop_setattr_desc, v7fs_setattr },            /* setattr */
 163         { &vop_read_desc, vn_fifo_bypass },             /* read */
 164         { &vop_write_desc, vn_fifo_bypass },            /* write */
 165         { &vop_fallocate_desc, vn_fifo_bypass },        /* fallocate */
 166         { &vop_fdiscard_desc, vn_fifo_bypass },         /* fdiscard */
 167         { &vop_ioctl_desc, vn_fifo_bypass },            /* ioctl */
 168         { &vop_fcntl_desc, genfs_fcntl },               /* fcntl */
 169         { &vop_poll_desc, vn_fifo_bypass },             /* poll */
 170         { &vop_kqfilter_desc, vn_fifo_bypass },         /* kqfilter */
 171         { &vop_revoke_desc, vn_fifo_bypass },           /* revoke */
 172         { &vop_mmap_desc, vn_fifo_bypass },             /* mmap */
 173         { &vop_fsync_desc, vn_fifo_bypass },            /* fsync */
 174         { &vop_seek_desc, vn_fifo_bypass },             /* seek */
 175         { &vop_remove_desc, vn_fifo_bypass },           /* remove */
 176         { &vop_link_desc, vn_fifo_bypass },             /* link */
 177         { &vop_rename_desc, vn_fifo_bypass },           /* rename */
 178         { &vop_mkdir_desc, vn_fifo_bypass },            /* mkdir */
 179         { &vop_rmdir_desc, vn_fifo_bypass },            /* rmdir */
 180         { &vop_symlink_desc, vn_fifo_bypass },          /* symlink */
 181         { &vop_readdir_desc, vn_fifo_bypass },          /* readdir */
 182         { &vop_readlink_desc, vn_fifo_bypass },         /* readlink */
 183         { &vop_abortop_desc, vn_fifo_bypass },          /* abortop */
 184         { &vop_inactive_desc, v7fs_inactive },          /* inactive */
 185         { &vop_reclaim_desc, v7fs_reclaim },            /* reclaim */
 186         { &vop_lock_desc, vn_fifo_bypass },             /* lock */
 187         { &vop_unlock_desc, vn_fifo_bypass },           /* unlock */
 188         { &vop_bmap_desc, vn_fifo_bypass },             /* bmap */
 189         { &vop_strategy_desc, vn_fifo_bypass },         /* strategy */
 190         { &vop_print_desc, vn_fifo_bypass },            /* print */
 191         { &vop_islocked_desc, vn_fifo_bypass },         /* islocked */
 192         { &vop_pathconf_desc, vn_fifo_bypass },         /* pathconf */
 193         { &vop_advlock_desc, vn_fifo_bypass },          /* advlock */
 194         { &vop_bwrite_desc, vn_bwrite },                /* bwrite */
 195         { &vop_putpages_desc, vn_fifo_bypass },         /* putpages */
 196         { NULL, NULL }
 197 };
 198
 199 const struct vnodeopv_desc v7fs_fifoop_opv_desc = {
 200         &v7fs_fifoop_p,
 201         v7fs_fifoop_entries
 202 };
 203
 204 const struct vnodeopv_desc v7fs_vnodeop_opv_desc = {
 205         &v7fs_vnodeop_p,
 206         v7fs_vnodeop_entries
 207 };
 208
 209 const struct vnodeopv_desc v7fs_specop_opv_desc = {
 210         &v7fs_specop_p,
 211         v7fs_specop_entries
 212 };
 213
 214 const struct vnodeopv_desc *v7fs_vnodeopv_descs[] = {
 215         &v7fs_vnodeop_opv_desc,
 216         &v7fs_specop_opv_desc,
 217         &v7fs_fifoop_opv_desc,
 218         NULL,
 219 };
 220
 221 const struct genfs_ops v7fs_genfsops = {
 222         .gop_size = genfs_size,
 223         .gop_alloc = v7fs_gop_alloc,
 224         .gop_write = genfs_gop_write,
 225 };
 226
 227 struct vfsops v7fs_vfsops = {
 228         .vfs_name = MOUNT_V7FS,
 229         .vfs_min_mount_data = sizeof(struct v7fs_args),
 230         .vfs_mount = v7fs_mount,
 231         .vfs_start = v7fs_start,
 232         .vfs_unmount = v7fs_unmount,
 233         .vfs_root = v7fs_root,
 234         .vfs_quotactl = (void *)eopnotsupp,
 235         .vfs_statvfs = v7fs_statvfs,
 236         .vfs_sync = v7fs_sync,
 237         .vfs_vget = v7fs_vget,
 238         .vfs_loadvnode = v7fs_loadvnode,
 239         .vfs_fhtovp = v7fs_fhtovp,
 240         .vfs_vptofh = v7fs_vptofh,
 241         .vfs_init = v7fs_init,
 242         .vfs_reinit = v7fs_reinit,
 243         .vfs_done = v7fs_done,
 244         .vfs_mountroot = v7fs_mountroot,
 245         .vfs_snapshot = (void *)eopnotsupp,
 246         .vfs_extattrctl = vfs_stdextattrctl,
 247         .vfs_suspendctl = (void *)eopnotsupp,
 248         .vfs_renamelock_enter = genfs_renamelock_enter,
 249         .vfs_renamelock_exit = genfs_renamelock_exit,
 250         .vfs_fsync = (void *)eopnotsupp,
 251         .vfs_opv_descs = v7fs_vnodeopv_descs
 252 };
 253
 254 static int
 255 v7fs_modcmd(modcmd_t cmd, void *arg)
 256 {
 257
 258         switch (cmd) {
 259         case MODULE_CMD_INIT:
 260                 return vfs_attach(&v7fs_vfsops);
 261         case MODULE_CMD_FINI:
 262                 return vfs_detach(&v7fs_vfsops);
 263         default:
 264                 return ENOTTY;
 265         }
 266 }