131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/* $NetBSD: linux_mtio.c,v 1.2 2005/12/11 12:20:19 christos Exp $ */
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/*
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* Copyright (c) 2005 Soren S. Jorvang. 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: linux_mtio.c,v 1.2 2005/12/11 12:20:19 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ioctl.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/mtio.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <compat/linux/common/linux_types.h>
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#include <compat/linux/common/linux_ioctl.h>
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#include <compat/linux/common/linux_signal.h>
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#include <compat/linux/common/linux_mtio.h>
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#include <compat/linux/linux_syscallargs.h>
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static const struct mtop_mapping {
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short lop;
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short op;
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} mtop_map[] = {
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{ LINUX_MTFSF, MTFSF },
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{ LINUX_MTBSF, MTBSF },
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{ LINUX_MTFSR, MTFSR },
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{ LINUX_MTBSR, MTBSR },
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{ LINUX_MTWEOF, MTWEOF },
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{ LINUX_MTREW, MTREW },
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{ LINUX_MTOFFL, MTOFFL },
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{ LINUX_MTNOP, MTNOP },
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{ LINUX_MTRETEN, MTRETEN },
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{ LINUX_MTEOM, MTEOM },
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{ LINUX_MTERASE, MTERASE },
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{ LINUX_MTSETBLK, MTSETBSIZ },
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{ LINUX_MTSETDENSITY, MTSETDNSTY },
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{ LINUX_MTCOMPRESSION, MTCMPRESS },
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{ -1, -1 }
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};
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int
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linux_ioctl_mtio(struct lwp *l, struct linux_sys_ioctl_args *uap,
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register_t *retval)
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{
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struct file *fp;
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struct filedesc *fdp;
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u_long com = SCARG(uap, com);
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int i, error = 0;
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int (*ioctlf)(struct file *, u_long, void *, struct lwp *);
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struct linux_mtop lmtop;
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struct linux_mtget lmtget;
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struct mtop mt;
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fdp = l->l_proc->p_fd;
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if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
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return EBADF;
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FILE_USE(fp);
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ioctlf = fp->f_ops->fo_ioctl;
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*retval = 0;
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switch (com) {
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case LINUX_MTIOCTOP:
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error = copyin(SCARG(uap, data), &lmtop, sizeof lmtop);
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for (i = 0; mtop_map[i].lop >= 0; i++) {
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if (mtop_map[i].lop == lmtop.mt_op)
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break;
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}
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if (mtop_map[i].lop == -1) {
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error = EINVAL;
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break;
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}
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mt.mt_op = mtop_map[i].op;
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mt.mt_count = lmtop.mt_count;
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error = ioctlf(fp, MTIOCTOP, (caddr_t)&mt, l);
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break;
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case LINUX_MTIOCGET:
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lmtget.mt_type = LINUX_MT_ISUNKNOWN;
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lmtget.mt_resid = 0;
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lmtget.mt_dsreg = 0;
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lmtget.mt_gstat = 0;
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lmtget.mt_erreg = 0;
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lmtget.mt_fileno = 0;
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lmtget.mt_blkno = 0;
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error = copyout(&lmtget, SCARG(uap, data), sizeof lmtget);
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break;
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case LINUX_MTIOCPOS:
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default:
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printf("linux_mtio unsupported ioctl 0x%lx\n", com);
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error = ENODEV;
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break;
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}
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FILE_UNUSE(fp, l);
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return error;
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}
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