freebsd32_ioctl.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 2008 David E. O'Brien
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. Neither the name of the author nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  */
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD: releng/8.2/sys/compat/freebsd32/freebsd32_ioctl.c 190529 2009-03-29 20:09:51Z ed $");
   32 
   33 #include "opt_compat.h"
   34 
   35 #include <sys/param.h>
   36 #include <sys/cdio.h>
   37 #include <sys/fcntl.h>
   38 #include <sys/filio.h>
   39 #include <sys/file.h>
   40 #include <sys/ioccom.h>
   41 #include <sys/mdioctl.h>
   42 #include <sys/proc.h>
   43 #include <sys/syscall.h>
   44 #include <sys/syscallsubr.h>
   45 #include <sys/sysctl.h>
   46 #include <sys/sysent.h>
   47 #include <sys/sysproto.h>
   48 #include <sys/systm.h>
   49 
   50 #include <compat/freebsd32/freebsd32.h>
   51 #include <compat/freebsd32/freebsd32_ioctl.h>
   52 #include <compat/freebsd32/freebsd32_proto.h>
   53 
   54 /* Cannot get exact size in 64-bit due to alignment issue of entire struct. */
   55 CTASSERT((sizeof(struct md_ioctl32)+4) == 436);
   56 CTASSERT(sizeof(struct ioc_read_toc_entry32) == 8);
   57 CTASSERT(sizeof(struct ioc_toc_header32) == 4);
   58 
   59 
   60 static int
   61 freebsd32_ioctl_md(struct thread *td, struct freebsd32_ioctl_args *uap,
   62     struct file *fp)
   63 {
   64         struct md_ioctl mdv;
   65         struct md_ioctl32 md32;
   66         u_long com = 0;
   67         int error;
   68 
   69         if (uap->data == NULL)
   70                 panic("%s: where is my ioctl data??", __func__);
   71         if (uap->com & IOC_IN) {
   72                 if ((error = copyin(uap->data, &md32, sizeof(md32)))) {
   73                         fdrop(fp, td);
   74                         return (error);
   75                 }
   76                 CP(md32, mdv, md_version);
   77                 CP(md32, mdv, md_unit);
   78                 CP(md32, mdv, md_type);
   79                 PTRIN_CP(md32, mdv, md_file);
   80                 CP(md32, mdv, md_mediasize);
   81                 CP(md32, mdv, md_sectorsize);
   82                 CP(md32, mdv, md_options);
   83                 CP(md32, mdv, md_base);
   84                 CP(md32, mdv, md_fwheads);
   85                 CP(md32, mdv, md_fwsectors);
   86         } else if (uap->com & IOC_OUT) {
   87                 /*
   88                  * Zero the buffer so the user always
   89                  * gets back something deterministic.
   90                  */
   91                 bzero(&mdv, sizeof mdv);
   92         }
   93 
   94         switch (uap->com) {
   95         case MDIOCATTACH_32:
   96                 com = MDIOCATTACH;
   97                 break;
   98         case MDIOCDETACH_32:
   99                 com = MDIOCDETACH;
  100                 break;
  101         case MDIOCQUERY_32:
  102                 com = MDIOCQUERY;
  103                 break;
  104         case MDIOCLIST_32:
  105                 com = MDIOCLIST;
  106                 break;
  107         default:
  108                 panic("%s: unknown MDIOC %#x", __func__, uap->com);
  109         }
  110         error = fo_ioctl(fp, com, (caddr_t)&mdv, td->td_ucred, td);
  111         if (error == 0 && (com & IOC_OUT)) {
  112                 CP(mdv, md32, md_version);
  113                 CP(mdv, md32, md_unit);
  114                 CP(mdv, md32, md_type);
  115                 PTROUT_CP(mdv, md32, md_file);
  116                 CP(mdv, md32, md_mediasize);
  117                 CP(mdv, md32, md_sectorsize);
  118                 CP(mdv, md32, md_options);
  119                 CP(mdv, md32, md_base);
  120                 CP(mdv, md32, md_fwheads);
  121                 CP(mdv, md32, md_fwsectors);
  122                 error = copyout(&md32, uap->data, sizeof(md32));
  123         }
  124         fdrop(fp, td);
  125         return error;
  126 }
  127 
  128 
  129 static int
  130 freebsd32_ioctl_ioc_toc_header(struct thread *td,
  131     struct freebsd32_ioctl_args *uap, struct file *fp)
  132 {
  133         struct ioc_toc_header toch;
  134         struct ioc_toc_header32 toch32;
  135         int error;
  136 
  137         if (uap->data == NULL)
  138                 panic("%s: where is my ioctl data??", __func__);
  139 
  140         if ((error = copyin(uap->data, &toch32, sizeof(toch32))))
  141                 return (error);
  142         CP(toch32, toch, len);
  143         CP(toch32, toch, starting_track);
  144         CP(toch32, toch, ending_track);
  145         error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&toch,
  146             td->td_ucred, td);
  147         fdrop(fp, td);
  148         return (error);
  149 }
  150 
  151 
  152 static int
  153 freebsd32_ioctl_ioc_read_toc(struct thread *td,
  154     struct freebsd32_ioctl_args *uap, struct file *fp)
  155 {
  156         struct ioc_read_toc_entry toce;
  157         struct ioc_read_toc_entry32 toce32;
  158         int error;
  159 
  160         if (uap->data == NULL)
  161                 panic("%s: where is my ioctl data??", __func__);
  162 
  163         if ((error = copyin(uap->data, &toce32, sizeof(toce32))))
  164                 return (error);
  165         CP(toce32, toce, address_format);
  166         CP(toce32, toce, starting_track);
  167         CP(toce32, toce, data_len);
  168         PTRIN_CP(toce32, toce, data);
  169 
  170         if ((error = fo_ioctl(fp, CDIOREADTOCENTRYS, (caddr_t)&toce,
  171             td->td_ucred, td))) {
  172                 CP(toce, toce32, address_format);
  173                 CP(toce, toce32, starting_track);
  174                 CP(toce, toce32, data_len);
  175                 PTROUT_CP(toce, toce32, data);
  176                 error = copyout(&toce32, uap->data, sizeof(toce32));
  177         }
  178         fdrop(fp, td);
  179         return error;
  180 }
  181 
  182 static int
  183 freebsd32_ioctl_fiodgname(struct thread *td,
  184     struct freebsd32_ioctl_args *uap, struct file *fp)
  185 {
  186         struct fiodgname_arg fgn;
  187         struct fiodgname_arg32 fgn32;
  188         int error;
  189 
  190         if ((error = copyin(uap->data, &fgn32, sizeof fgn32)) != 0)
  191                 return (error);
  192         CP(fgn32, fgn, len);
  193         PTRIN_CP(fgn32, fgn, buf);
  194         error = fo_ioctl(fp, FIODGNAME, (caddr_t)&fgn, td->td_ucred, td);
  195         fdrop(fp, td);
  196         return (error);
  197 }
  198 
  199 int
  200 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
  201 {
  202         struct ioctl_args ap /*{
  203                 int     fd;
  204                 u_long  com;
  205                 caddr_t data;
  206         }*/ ;
  207         struct file *fp;
  208         int error;
  209 
  210         if ((error = fget(td, uap->fd, &fp)) != 0)
  211                 return (error);
  212         if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
  213                 fdrop(fp, td);
  214                 return (EBADF);
  215         }
  216 
  217         switch (uap->com) {
  218         case MDIOCATTACH_32:    /* FALLTHROUGH */
  219         case MDIOCDETACH_32:    /* FALLTHROUGH */
  220         case MDIOCQUERY_32:     /* FALLTHROUGH */
  221         case MDIOCLIST_32:
  222                 return freebsd32_ioctl_md(td, uap, fp);
  223 
  224         case CDIOREADTOCENTRYS_32:
  225                 return freebsd32_ioctl_ioc_read_toc(td, uap, fp);
  226 
  227         case CDIOREADTOCHEADER_32:
  228                 return freebsd32_ioctl_ioc_toc_header(td, uap, fp);
  229 
  230         case FIODGNAME_32:
  231                 return freebsd32_ioctl_fiodgname(td, uap, fp);
  232 
  233         default:
  234                 fdrop(fp, td);
  235                 ap.fd = uap->fd;
  236                 ap.com = uap->com;
  237                 PTRIN_CP(*uap, ap, data);
  238                 return ioctl(td, &ap);
  239         }
  240 }

Cache object: cdbe696d340e222ce78941924e944f33

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/compat/freebsd32/freebsd32_ioctl.c

FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_ioctl.c