108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/* $NetBSD: bio_30.c,v 1.3 2019/03/01 11:06:56 pgoyette Exp $ */
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/* $OpenBSD: bio.c,v 1.9 2007/03/20 02:35:55 marco Exp $ */
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/*
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* Copyright (c) 2002 Niklas Hallqvist. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: bio_30.c,v 1.3 2019/03/01 11:06:56 pgoyette Exp $");
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#if defined(_KERNEL_OPT)
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#include "opt_compat_netbsd.h"
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#endif
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/event.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/systm.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/kauth.h>
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#include <sys/compat_stub.h>
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#include <dev/biovar.h>
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#include <dev/sysmon/sysmonvar.h>
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#include <compat/common/compat_mod.h>
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static int
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compat_30_bio(void *cookie, u_long cmd, void *addr,
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int (*delegate)(void *, u_long, void *))
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{
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int error;
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switch (cmd) {
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case OBIOCDISK: {
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struct bioc_disk *bd =
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malloc(sizeof(*bd), M_DEVBUF, M_WAITOK|M_ZERO);
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(void)memcpy(bd, addr, sizeof(struct obioc_disk));
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error = (*delegate)(cookie, BIOCDISK, bd);
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if (error) {
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free(bd, M_DEVBUF);
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return error;
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}
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(void)memcpy(addr, bd, sizeof(struct obioc_disk));
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free(bd, M_DEVBUF);
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return 0;
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}
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case OBIOCVOL: {
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struct bioc_vol *bv =
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malloc(sizeof(*bv), M_DEVBUF, M_WAITOK|M_ZERO);
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(void)memcpy(bv, addr, sizeof(struct obioc_vol));
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error = (*delegate)(cookie, BIOCVOL, bv);
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if (error) {
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free(bv, M_DEVBUF);
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return error;
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}
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(void)memcpy(addr, bv, sizeof(struct obioc_vol));
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free(bv, M_DEVBUF);
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return 0;
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}
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default:
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return ENOSYS;
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}
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}
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void
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bio_30_init(void)
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{
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MODULE_HOOK_SET(compat_bio_30_hook, "bio_30", compat_30_bio);
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}
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void
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bio_30_fini(void)
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{
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MODULE_HOOK_UNSET(compat_bio_30_hook);
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}
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