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vnd_50.c revision 1.2 
      1 /*	$NetBSD: vnd_50.c,v 1.2 2019/01/27 02:08:39 pgoyette Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996, 1997, 1998, 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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 /*
     33  * Copyright (c) 1988 University of Utah.
     34  * Copyright (c) 1990, 1993
     35  *	The Regents of the University of California.  All rights reserved.
     36  *
     37  * This code is derived from software contributed to Berkeley by
     38  * the Systems Programming Group of the University of Utah Computer
     39  * Science Department.
     40  *
     41  * Redistribution and use in source and binary forms, with or without
     42  * modification, are permitted provided that the following conditions
     43  * are met:
     44  * 1. Redistributions of source code must retain the above copyright
     45  *    notice, this list of conditions and the following disclaimer.
     46  * 2. Redistributions in binary form must reproduce the above copyright
     47  *    notice, this list of conditions and the following disclaimer in the
     48  *    documentation and/or other materials provided with the distribution.
     49  * 3. Neither the name of the University nor the names of its contributors
     50  *    may be used to endorse or promote products derived from this software
     51  *    without specific prior written permission.
     52  *
     53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     63  * SUCH DAMAGE.
     64  *
     65  * from: Utah $Hdr: vn.c 1.13 94/04/02$
     66  *
     67  *	@(#)vn.c	8.9 (Berkeley) 5/14/95
     68  */
     69 
     70 #include <sys/cdefs.h>
     71 __KERNEL_RCSID(0, "$NetBSD: vnd_50.c,v 1.2 2019/01/27 02:08:39 pgoyette Exp $");
     72 
     73 #if defined(_KERNEL_OPT)
     74 #include "opt_compat_netbsd.h"
     75 #endif
     76 
     77 #include <sys/param.h>
     78 #include <sys/systm.h>
     79 #include <sys/proc.h>
     80 #include <sys/errno.h>
     81 #include <sys/malloc.h>
     82 #include <sys/ioctl.h>
     83 #include <sys/device.h>
     84 #include <sys/disk.h>
     85 #include <sys/stat.h>
     86 #include <sys/vnode.h>
     87 #include <sys/file.h>
     88 #include <sys/uio.h>
     89 #include <sys/conf.h>
     90 #include <sys/vnode.h>
     91 #include <sys/compat_stub.h>
     92 
     93 #include <net/zlib.h>
     94 
     95 #include <dev/vndvar.h>
     96 
     97 #include <compat/common/compat_mod.h>
     98 
     99 static int compat_50_vndioctl(u_long, struct lwp *, void *, int, struct vattr *,
    100     int (*)(struct lwp *, void *, int, struct vattr *));
    101 
    102 static int
    103 compat_50_vndioctl(u_long cmd, struct lwp *l, void *data, int unit,
    104     struct vattr *vattr_p,
    105     int (*get)(struct lwp *, void *, int, struct vattr *))
    106 {
    107 	struct vnd_user50 *vnu = data;
    108 	int error;
    109 
    110 	if (cmd != VNDIOCGET50)
    111 		return EPASSTHROUGH;
    112 
    113 	error = (*get)(l, data, unit, vattr_p);
    114 	if (error != 0)
    115 		return error;
    116 
    117 	vnu->vnu_dev = vattr_p->va_fsid;
    118 	vnu->vnu_ino = vattr_p->va_fileid;
    119 	return 0;
    120 }
    121 
    122 void
    123 vnd_50_init(void)
    124 {
    125 
    126 	MODULE_SET_HOOK(compat_vndioctl_50_hook, "vnd_50", compat_50_vndioctl);
    127 }
    128 
    129 void
    130 vnd_50_fini(void)
    131 {
    132 
    133 	MODULE_UNSET_HOOK(compat_vndioctl_50_hook);
    134 }
    135