root/compat/linux/linux_hdio.c

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DEFINITIONS

This source file includes following definitions.
  1. linux_ioctl_hdio

    1 /*      $OpenBSD: linux_hdio.c,v 1.6 2007/06/05 00:38:20 deraadt Exp $  */
    2 /*      $NetBSD: linux_hdio.c,v 1.1 2000/12/10 14:12:17 fvdl Exp $      */
    3 
    4 /*
    5  * Copyright (c) 2000 Wasabi Systems, Inc.
    6  * All rights reserved.
    7  *
    8  * Written by Frank van der Linden for Wasabi Systems, Inc.
    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  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed for the NetBSD Project by
   21  *      Wasabi Systems, Inc.
   22  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   23  *    or promote products derived from this software without specific prior
   24  *    written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
   27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #include <sys/param.h>
   40 #include <sys/systm.h>
   41 #include <sys/ioctl.h>
   42 #include <sys/file.h>
   43 #include <sys/filedesc.h>
   44 #include <sys/mount.h>
   45 #include <sys/proc.h>
   46 #include <sys/disklabel.h>
   47 
   48 #include <dev/ata/atareg.h>
   49 #include <dev/ic/wdcreg.h>
   50 #include <sys/ataio.h>
   51 
   52 #include <sys/syscallargs.h>
   53 
   54 #include <compat/linux/linux_types.h>
   55 #include <compat/linux/linux_ioctl.h>
   56 #include <compat/linux/linux_signal.h>
   57 #include <compat/linux/linux_util.h>
   58 #include <compat/linux/linux_hdio.h>
   59 
   60 #include <compat/linux/linux_syscallargs.h>
   61 
   62 int
   63 linux_ioctl_hdio(struct proc *p, struct linux_sys_ioctl_args *uap,
   64                  register_t *retval)
   65 {
   66         u_long com;
   67         int error, error1;
   68         caddr_t sg;
   69         struct filedesc *fdp;
   70         struct file *fp;
   71         int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
   72         struct ataparams *atap, ata;
   73         struct atareq req;
   74         struct disklabel label, *labp;
   75         struct partinfo partp;
   76         struct linux_hd_geometry hdg;
   77         struct linux_hd_big_geometry hdg_big;
   78 
   79         fdp = p->p_fd;
   80         if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
   81                 return (EBADF);
   82 
   83         FREF(fp);
   84         com = SCARG(uap, com);
   85         ioctlf = fp->f_ops->fo_ioctl;
   86         retval[0] = error = 0;
   87 
   88         com = SCARG(uap, com);
   89 
   90         switch (com) {
   91         case LINUX_HDIO_OBSOLETE_IDENTITY:
   92         case LINUX_HDIO_GET_IDENTITY:
   93                 sg = stackgap_init(p->p_emul);
   94                 atap = stackgap_alloc(&sg, DEV_BSIZE);
   95                 if (atap == NULL) {
   96                         error = ENOMEM;
   97                         break;
   98                 }
   99 
  100                 req.flags = ATACMD_READ;
  101                 req.command = WDCC_IDENTIFY;
  102                 req.databuf = (caddr_t)atap;
  103                 req.datalen = DEV_BSIZE;
  104                 req.timeout = 1000;
  105                 error = ioctlf(fp, ATAIOCCOMMAND, (caddr_t)&req, p);
  106                 if (error != 0)
  107                         break;
  108                 if (req.retsts != ATACMD_OK) {
  109                         error = EIO;
  110                         break;
  111                 }
  112                 error = copyin(atap, &ata, sizeof ata);
  113                 if (error != 0)
  114                         break;
  115                 /*
  116                  * 142 is the size of the old structure used by Linux,
  117                  * which doesn't seem to be defined anywhere anymore.
  118                  */
  119                 error = copyout(&ata, SCARG(uap, data),
  120                     com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142);
  121                 break;
  122         case LINUX_HDIO_GETGEO:
  123                 error = linux_machdepioctl(p, uap, retval);
  124                 if (error == 0)
  125                         break;
  126                 error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
  127                 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
  128                 if (error != 0 && error1 != 0) {
  129                         error = error1;
  130                         break;
  131                 }
  132                 labp = error != 0 ? &label : partp.disklab;
  133                 hdg.start = error1 != 0 ? DL_GETPOFFSET(partp.part) & 0x7fffffff: 0;
  134                 hdg.heads = labp->d_ntracks;
  135                 hdg.cylinders = labp->d_ncylinders;
  136                 hdg.sectors = labp->d_nsectors;
  137                 error = copyout(&hdg, SCARG(uap, data), sizeof hdg);
  138                 break;
  139         case LINUX_HDIO_GETGEO_BIG:
  140                 error = linux_machdepioctl(p, uap, retval);
  141                 if (error == 0)
  142                         break;
  143         case LINUX_HDIO_GETGEO_BIG_RAW:
  144                 error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
  145                 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
  146                 if (error != 0 && error1 != 0) {
  147                         error = error1;
  148                         break;
  149                 }
  150                 labp = error != 0 ? &label : partp.disklab;
  151                 hdg_big.start = error1 != 0 ? DL_GETPOFFSET(partp.part) & 0x7fffffff : 0;
  152                 hdg_big.heads = labp->d_ntracks;
  153                 hdg_big.cylinders = labp->d_ncylinders;
  154                 hdg_big.sectors = labp->d_nsectors;
  155                 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big);
  156                 break;
  157         case LINUX_HDIO_GET_UNMASKINTR:
  158         case LINUX_HDIO_GET_MULTCOUNT:
  159         case LINUX_HDIO_GET_KEEPSETTINGS:
  160         case LINUX_HDIO_GET_32BIT:
  161         case LINUX_HDIO_GET_NOWERR:
  162         case LINUX_HDIO_GET_DMA:
  163         case LINUX_HDIO_GET_NICE:
  164         case LINUX_HDIO_DRIVE_RESET:
  165         case LINUX_HDIO_TRISTATE_HWIF:
  166         case LINUX_HDIO_DRIVE_TASK:
  167         case LINUX_HDIO_DRIVE_CMD:
  168         case LINUX_HDIO_SET_MULTCOUNT:
  169         case LINUX_HDIO_SET_UNMASKINTR:
  170         case LINUX_HDIO_SET_KEEPSETTINGS:
  171         case LINUX_HDIO_SET_32BIT:
  172         case LINUX_HDIO_SET_NOWERR:
  173         case LINUX_HDIO_SET_DMA:
  174         case LINUX_HDIO_SET_PIO_MODE:
  175         case LINUX_HDIO_SCAN_HWIF:
  176         case LINUX_HDIO_SET_NICE:
  177         case LINUX_HDIO_UNREGISTER_HWIF:
  178                 error = EINVAL;
  179         }
  180 
  181         FRELE(fp);
  182         return error;
  183 }

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