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udf_strat_bootstrap.c revision 1.1 
      1 /* $NetBSD: udf_strat_bootstrap.c,v 1.1 2008/05/14 16:49:48 reinoud 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 1.1 2008/05/14 16:49:48 reinoud Exp $");
     32 #endif /* not lint */
     33 
     34 
     35 #if defined(_KERNEL_OPT)
     36 #include "opt_quota.h"
     37 #include "opt_compat_netbsd.h"
     38 #endif
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/sysctl.h>
     43 #include <sys/namei.h>
     44 #include <sys/proc.h>
     45 #include <sys/kernel.h>
     46 #include <sys/vnode.h>
     47 #include <miscfs/genfs/genfs_node.h>
     48 #include <sys/mount.h>
     49 #include <sys/buf.h>
     50 #include <sys/file.h>
     51 #include <sys/device.h>
     52 #include <sys/disklabel.h>
     53 #include <sys/ioctl.h>
     54 #include <sys/malloc.h>
     55 #include <sys/dirent.h>
     56 #include <sys/stat.h>
     57 #include <sys/conf.h>
     58 #include <sys/kauth.h>
     59 #include <sys/kthread.h>
     60 #include <dev/clock_subr.h>
     61 
     62 #include <fs/udf/ecma167-udf.h>
     63 #include <fs/udf/udf_mount.h>
     64 
     65 #if defined(_KERNEL_OPT)
     66 #include "opt_udf.h"
     67 #endif
     68 
     69 #include "udf.h"
     70 #include "udf_subr.h"
     71 #include "udf_bswap.h"
     72 
     73 
     74 #define VTOI(vnode) ((struct udf_node *) vnode->v_data)
     75 #define PRIV(ump) ((struct strat_private *) ump->strategy_private)
     76 
     77 /* --------------------------------------------------------------------- */
     78 
     79 static int
     80 udf_create_logvol_dscr_bootstrap(struct udf_strat_args *args)
     81 {
     82 	panic("udf_create_logvol_dscr_bootstrap: not possible\n");
     83 	return 0;
     84 }
     85 
     86 
     87 static void
     88 udf_free_logvol_dscr_bootstrap(struct udf_strat_args *args)
     89 {
     90 	panic("udf_free_logvol_dscr_bootstrap: no node descriptor reading\n");
     91 }
     92 
     93 
     94 static int
     95 udf_read_logvol_dscr_bootstrap(struct udf_strat_args *args)
     96 {
     97 	panic("udf_read_logvol_dscr_bootstrap: no node descriptor reading\n");
     98 	return 0;
     99 }
    100 
    101 
    102 static int
    103 udf_write_logvol_dscr_bootstrap(struct udf_strat_args *args)
    104 {
    105 	panic("udf_write_logvol_dscr_bootstrap: no writing\n");
    106 }
    107 
    108 /* --------------------------------------------------------------------- */
    109 
    110 static void
    111 udf_queuebuf_bootstrap(struct udf_strat_args *args)
    112 {
    113 	struct udf_mount *ump = args->ump;
    114 	struct buf *buf = args->nestbuf;
    115 
    116 	KASSERT(ump);
    117 	KASSERT(buf);
    118 	KASSERT(buf->b_iodone == nestiobuf_iodone);
    119 
    120 	KASSERT(buf->b_flags & B_READ);
    121 	VOP_STRATEGY(ump->devvp, buf);
    122 }
    123 
    124 static void
    125 udf_discstrat_init_bootstrap(struct udf_strat_args *args)
    126 {
    127 	/* empty */
    128 }
    129 
    130 
    131 static void
    132 udf_discstrat_finish_bootstrap(struct udf_strat_args *args)
    133 {
    134 	/* empty */
    135 }
    136 
    137 /* --------------------------------------------------------------------- */
    138 
    139 struct udf_strategy udf_strat_bootstrap =
    140 {
    141 	udf_create_logvol_dscr_bootstrap,
    142 	udf_free_logvol_dscr_bootstrap,
    143 	udf_read_logvol_dscr_bootstrap,
    144 	udf_write_logvol_dscr_bootstrap,
    145 	udf_queuebuf_bootstrap,
    146 	udf_discstrat_init_bootstrap,
    147 	udf_discstrat_finish_bootstrap
    148 };
    149 
    150 
    151