sys/fs/udf/udf_strat_bootstrap.c

   1 /* $NetBSD: udf_strat_bootstrap.c,v 1.4 2014/11/10 18:46:33 maxv Exp $ */
   2
   3 /*
   4  * Copyright (c) 2006, 2008 Reinoud Zandijk
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 #include <sys/cdefs.h>
  30 #ifndef lint
  31 __KERNEL_RCSID(0, "$NetBSD: udf_strat_bootstrap.c,v 1.4 2014/11/10 18:46:33 maxv Exp $");
  32 #endif /* not lint */
  33
  34
  35 #if defined(_KERNEL_OPT)
  36 #include "opt_compat_netbsd.h"
  37 #endif
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/sysctl.h>
  42 #include <sys/namei.h>
  43 #include <sys/proc.h>
  44 #include <sys/kernel.h>
  45 #include <sys/vnode.h>
  46 #include <miscfs/genfs/genfs_node.h>
  47 #include <sys/mount.h>
  48 #include <sys/buf.h>
  49 #include <sys/file.h>
  50 #include <sys/device.h>
  51 #include <sys/disklabel.h>
  52 #include <sys/ioctl.h>
  53 #include <sys/dirent.h>
  54 #include <sys/stat.h>
  55 #include <sys/conf.h>
  56 #include <sys/kauth.h>
  57 #include <sys/kthread.h>
  58 #include <dev/clock_subr.h>
  59
  60 #include <fs/udf/ecma167-udf.h>
  61 #include <fs/udf/udf_mount.h>
  62
  63 #include "udf.h"
  64 #include "udf_subr.h"
  65 #include "udf_bswap.h"
  66
  67
  68 #define VTOI(vnode) ((struct udf_node *) vnode->v_data)
  69 #define PRIV(ump) ((struct strat_private *) ump->strategy_private)
  70
  71 /* --------------------------------------------------------------------- */
  72
  73 static int
  74 udf_create_logvol_dscr_bootstrap(struct udf_strat_args *args)
  75 {
  76         panic("udf_create_logvol_dscr_bootstrap: not possible\n");
  77         return 0;
  78 }
  79
  80
  81 static void
  82 udf_free_logvol_dscr_bootstrap(struct udf_strat_args *args)
  83 {
  84         panic("udf_free_logvol_dscr_bootstrap: no node descriptor reading\n");
  85 }
  86
  87
  88 static int
  89 udf_read_logvol_dscr_bootstrap(struct udf_strat_args *args)
  90 {
  91         panic("udf_read_logvol_dscr_bootstrap: no node descriptor reading\n");
  92         return 0;
  93 }
  94
  95
  96 static int
  97 udf_write_logvol_dscr_bootstrap(struct udf_strat_args *args)
  98 {
  99         panic("udf_write_logvol_dscr_bootstrap: no writing\n");
 100 }
 101
 102 /* --------------------------------------------------------------------- */
 103
 104 static void
 105 udf_queuebuf_bootstrap(struct udf_strat_args *args)
 106 {
 107         struct udf_mount *ump = args->ump;
 108         struct buf *buf = args->nestbuf;
 109
 110         KASSERT(ump);
 111         KASSERT(buf);
 112         KASSERT(buf->b_iodone == nestiobuf_iodone);
 113
 114         KASSERT(buf->b_flags & B_READ);
 115         VOP_STRATEGY(ump->devvp, buf);
 116 }
 117
 118 static void
 119 udf_discstrat_init_bootstrap(struct udf_strat_args *args)
 120 {
 121         /* empty */
 122 }
 123
 124
 125 static void
 126 udf_discstrat_finish_bootstrap(struct udf_strat_args *args)
 127 {
 128         /* empty */
 129 }
 130
 131 /* --------------------------------------------------------------------- */
 132
 133 struct udf_strategy udf_strat_bootstrap =
 134 {
 135         udf_create_logvol_dscr_bootstrap,
 136         udf_free_logvol_dscr_bootstrap,
 137         udf_read_logvol_dscr_bootstrap,
 138         udf_write_logvol_dscr_bootstrap,
 139         udf_queuebuf_bootstrap,
 140         udf_discstrat_init_bootstrap,
 141         udf_discstrat_finish_bootstrap
 142 };
 143
 144