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udf_strat_bootstrap.c revision 1.2 
      1 /* $NetBSD: udf_strat_bootstrap.c,v 1.2 2008/08/29 15:04:18 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 1.2 2008/08/29 15:04:18 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 #include "udf.h"
     66 #include "udf_subr.h"
     67 #include "udf_bswap.h"
     68 
     69 
     70 #define VTOI(vnode) ((struct udf_node *) vnode->v_data)
     71 #define PRIV(ump) ((struct strat_private *) ump->strategy_private)
     72 
     73 /* --------------------------------------------------------------------- */
     74 
     75 static int
     76 udf_create_logvol_dscr_bootstrap(struct udf_strat_args *args)
     77 {
     78 	panic("udf_create_logvol_dscr_bootstrap: not possible\n");
     79 	return 0;
     80 }
     81 
     82 
     83 static void
     84 udf_free_logvol_dscr_bootstrap(struct udf_strat_args *args)
     85 {
     86 	panic("udf_free_logvol_dscr_bootstrap: no node descriptor reading\n");
     87 }
     88 
     89 
     90 static int
     91 udf_read_logvol_dscr_bootstrap(struct udf_strat_args *args)
     92 {
     93 	panic("udf_read_logvol_dscr_bootstrap: no node descriptor reading\n");
     94 	return 0;
     95 }
     96 
     97 
     98 static int
     99 udf_write_logvol_dscr_bootstrap(struct udf_strat_args *args)
    100 {
    101 	panic("udf_write_logvol_dscr_bootstrap: no writing\n");
    102 }
    103 
    104 /* --------------------------------------------------------------------- */
    105 
    106 static void
    107 udf_queuebuf_bootstrap(struct udf_strat_args *args)
    108 {
    109 	struct udf_mount *ump = args->ump;
    110 	struct buf *buf = args->nestbuf;
    111 
    112 	KASSERT(ump);
    113 	KASSERT(buf);
    114 	KASSERT(buf->b_iodone == nestiobuf_iodone);
    115 
    116 	KASSERT(buf->b_flags & B_READ);
    117 	VOP_STRATEGY(ump->devvp, buf);
    118 }
    119 
    120 static void
    121 udf_discstrat_init_bootstrap(struct udf_strat_args *args)
    122 {
    123 	/* empty */
    124 }
    125 
    126 
    127 static void
    128 udf_discstrat_finish_bootstrap(struct udf_strat_args *args)
    129 {
    130 	/* empty */
    131 }
    132 
    133 /* --------------------------------------------------------------------- */
    134 
    135 struct udf_strategy udf_strat_bootstrap =
    136 {
    137 	udf_create_logvol_dscr_bootstrap,
    138 	udf_free_logvol_dscr_bootstrap,
    139 	udf_read_logvol_dscr_bootstrap,
    140 	udf_write_logvol_dscr_bootstrap,
    141 	udf_queuebuf_bootstrap,
    142 	udf_discstrat_init_bootstrap,
    143 	udf_discstrat_finish_bootstrap
    144 };
    145 
    146 
    147