freebsd32_ioctl.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2008 David E. O'Brien
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the author nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD$");
   34 
   35 #include <sys/param.h>
   36 #include <sys/capsicum.h>
   37 #include <sys/cdio.h>
   38 #include <sys/fcntl.h>
   39 #include <sys/filio.h>
   40 #include <sys/file.h>
   41 #include <sys/ioccom.h>
   42 #include <sys/malloc.h>
   43 #include <sys/memrange.h>
   44 #include <sys/pciio.h>
   45 #include <sys/proc.h>
   46 #include <sys/syscall.h>
   47 #include <sys/syscallsubr.h>
   48 #include <sys/sysctl.h>
   49 #include <sys/sysent.h>
   50 #include <sys/sysproto.h>
   51 #include <sys/systm.h>
   52 #include <sys/uio.h>
   53 
   54 #include <compat/freebsd32/freebsd32.h>
   55 #include <compat/freebsd32/freebsd32_ioctl.h>
   56 #include <compat/freebsd32/freebsd32_misc.h>
   57 #include <compat/freebsd32/freebsd32_proto.h>
   58 
   59 CTASSERT(sizeof(struct mem_range_op32) == 12);
   60 
   61 static int
   62 freebsd32_ioctl_fiodgname(struct thread *td,
   63     struct freebsd32_ioctl_args *uap, struct file *fp)
   64 {
   65         struct fiodgname_arg fgn;
   66         struct fiodgname_arg32 fgn32;
   67         int error;
   68 
   69         if ((error = copyin(uap->data, &fgn32, sizeof fgn32)) != 0)
   70                 return (error);
   71         CP(fgn32, fgn, len);
   72         PTRIN_CP(fgn32, fgn, buf);
   73         error = fo_ioctl(fp, FIODGNAME, (caddr_t)&fgn, td->td_ucred, td);
   74         return (error);
   75 }
   76 
   77 static int
   78 freebsd32_ioctl_memrange(struct thread *td,
   79     struct freebsd32_ioctl_args *uap, struct file *fp)
   80 {
   81         struct mem_range_op mro;
   82         struct mem_range_op32 mro32;
   83         int error;
   84         u_long com;
   85 
   86         if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
   87                 return (error);
   88 
   89         PTRIN_CP(mro32, mro, mo_desc);
   90         CP(mro32, mro, mo_arg[0]);
   91         CP(mro32, mro, mo_arg[1]);
   92 
   93         com = 0;
   94         switch (uap->com) {
   95         case MEMRANGE_GET32:
   96                 com = MEMRANGE_GET;
   97                 break;
   98 
   99         case MEMRANGE_SET32:
  100                 com = MEMRANGE_SET;
  101                 break;
  102 
  103         default:
  104                 panic("%s: unknown MEMRANGE %#x", __func__, uap->com);
  105         }
  106 
  107         if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
  108                 return (error);
  109 
  110         if ( (com & IOC_OUT) ) {
  111                 CP(mro, mro32, mo_arg[0]);
  112                 CP(mro, mro32, mo_arg[1]);
  113 
  114                 error = copyout(&mro32, uap->data, sizeof(mro32));
  115         }
  116 
  117         return (error);
  118 }
  119 
  120 static int
  121 freebsd32_ioctl_barmmap(struct thread *td,
  122     struct freebsd32_ioctl_args *uap, struct file *fp)
  123 {
  124         struct pci_bar_mmap32 pbm32;
  125         struct pci_bar_mmap pbm;
  126         int error;
  127 
  128         error = copyin(uap->data, &pbm32, sizeof(pbm32));
  129         if (error != 0)
  130                 return (error);
  131         PTRIN_CP(pbm32, pbm, pbm_map_base);
  132         CP(pbm32, pbm, pbm_sel);
  133         CP(pbm32, pbm, pbm_reg);
  134         CP(pbm32, pbm, pbm_flags);
  135         CP(pbm32, pbm, pbm_memattr);
  136         pbm.pbm_bar_length = PAIR32TO64(uint64_t, pbm32.pbm_bar_length);
  137         error = fo_ioctl(fp, PCIOCBARMMAP, (caddr_t)&pbm, td->td_ucred, td);
  138         if (error == 0) {
  139                 PTROUT_CP(pbm, pbm32, pbm_map_base);
  140                 CP(pbm, pbm32, pbm_map_length);
  141 #if BYTE_ORDER == LITTLE_ENDIAN
  142                 pbm32.pbm_bar_length1 = pbm.pbm_bar_length;
  143                 pbm32.pbm_bar_length2 = pbm.pbm_bar_length >> 32;
  144 #else
  145                 pbm32.pbm_bar_length1 = pbm.pbm_bar_length >> 32;
  146                 pbm32.pbm_bar_length2 = pbm.pbm_bar_length;
  147 #endif
  148                 CP(pbm, pbm32, pbm_bar_off);
  149                 error = copyout(&pbm32, uap->data, sizeof(pbm32));
  150         }
  151         return (error);
  152 }
  153 
  154 static int
  155 freebsd32_ioctl_sg(struct thread *td,
  156     struct freebsd32_ioctl_args *uap, struct file *fp)
  157 {
  158         struct sg_io_hdr io;
  159         struct sg_io_hdr32 io32;
  160         int error;
  161 
  162         if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0)
  163                 return (error);
  164 
  165         CP(io32, io, interface_id);
  166         CP(io32, io, dxfer_direction);
  167         CP(io32, io, cmd_len);
  168         CP(io32, io, mx_sb_len);
  169         CP(io32, io, iovec_count);
  170         CP(io32, io, dxfer_len);
  171         PTRIN_CP(io32, io, dxferp);
  172         PTRIN_CP(io32, io, cmdp);
  173         PTRIN_CP(io32, io, sbp);
  174         CP(io32, io, timeout);
  175         CP(io32, io, flags);
  176         CP(io32, io, pack_id);
  177         PTRIN_CP(io32, io, usr_ptr);
  178         CP(io32, io, status);
  179         CP(io32, io, masked_status);
  180         CP(io32, io, msg_status);
  181         CP(io32, io, sb_len_wr);
  182         CP(io32, io, host_status);
  183         CP(io32, io, driver_status);
  184         CP(io32, io, resid);
  185         CP(io32, io, duration);
  186         CP(io32, io, info);
  187 
  188         if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
  189                 return (error);
  190 
  191         CP(io, io32, interface_id);
  192         CP(io, io32, dxfer_direction);
  193         CP(io, io32, cmd_len);
  194         CP(io, io32, mx_sb_len);
  195         CP(io, io32, iovec_count);
  196         CP(io, io32, dxfer_len);
  197         PTROUT_CP(io, io32, dxferp);
  198         PTROUT_CP(io, io32, cmdp);
  199         PTROUT_CP(io, io32, sbp);
  200         CP(io, io32, timeout);
  201         CP(io, io32, flags);
  202         CP(io, io32, pack_id);
  203         PTROUT_CP(io, io32, usr_ptr);
  204         CP(io, io32, status);
  205         CP(io, io32, masked_status);
  206         CP(io, io32, msg_status);
  207         CP(io, io32, sb_len_wr);
  208         CP(io, io32, host_status);
  209         CP(io, io32, driver_status);
  210         CP(io, io32, resid);
  211         CP(io, io32, duration);
  212         CP(io, io32, info);
  213 
  214         error = copyout(&io32, uap->data, sizeof(io32));
  215 
  216         return (error);
  217 }
  218 
  219 int
  220 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
  221 {
  222         struct ioctl_args ap /*{
  223                 int     fd;
  224                 u_long  com;
  225                 caddr_t data;
  226         }*/ ;
  227         struct file *fp;
  228         cap_rights_t rights;
  229         int error;
  230 
  231         error = fget(td, uap->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
  232         if (error != 0)
  233                 return (error);
  234         if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
  235                 fdrop(fp, td);
  236                 return (EBADF);
  237         }
  238 
  239         switch (uap->com) {
  240         case FIODGNAME_32:
  241                 error = freebsd32_ioctl_fiodgname(td, uap, fp);
  242                 break;
  243 
  244         case MEMRANGE_GET32:    /* FALLTHROUGH */
  245         case MEMRANGE_SET32:
  246                 error = freebsd32_ioctl_memrange(td, uap, fp);
  247                 break;
  248 
  249         case SG_IO_32:
  250                 error = freebsd32_ioctl_sg(td, uap, fp);
  251                 break;
  252 
  253         case PCIOCBARMMAP_32:
  254                 error = freebsd32_ioctl_barmmap(td, uap, fp);
  255                 break;
  256 
  257         default:
  258                 fdrop(fp, td);
  259                 ap.fd = uap->fd;
  260                 ap.com = uap->com;
  261                 PTRIN_CP(*uap, ap, data);
  262                 return sys_ioctl(td, &ap);
  263         }
  264 
  265         fdrop(fp, td);
  266         return (error);
  267 }

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

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