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/sysproto.h>
   50 #include <sys/systm.h>
   51 #include <sys/uio.h>
   52 
   53 #include <compat/freebsd32/freebsd32.h>
   54 #include <compat/freebsd32/freebsd32_ioctl.h>
   55 #include <compat/freebsd32/freebsd32_misc.h>
   56 #include <compat/freebsd32/freebsd32_proto.h>
   57 
   58 CTASSERT(sizeof(struct mem_range_op32) == 12);
   59 
   60 static int
   61 freebsd32_ioctl_memrange(struct thread *td,
   62     struct freebsd32_ioctl_args *uap, struct file *fp)
   63 {
   64         struct mem_range_op mro;
   65         struct mem_range_op32 mro32;
   66         int error;
   67         u_long com;
   68 
   69         if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
   70                 return (error);
   71 
   72         PTRIN_CP(mro32, mro, mo_desc);
   73         CP(mro32, mro, mo_arg[0]);
   74         CP(mro32, mro, mo_arg[1]);
   75 
   76         com = _IOC_NEWTYPE(uap->com, struct mem_range_op);
   77 
   78         if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
   79                 return (error);
   80 
   81         if ( (com & IOC_OUT) ) {
   82                 CP(mro, mro32, mo_arg[0]);
   83                 CP(mro, mro32, mo_arg[1]);
   84 
   85                 error = copyout(&mro32, uap->data, sizeof(mro32));
   86         }
   87 
   88         return (error);
   89 }
   90 
   91 static int
   92 freebsd32_ioctl_barmmap(struct thread *td,
   93     struct freebsd32_ioctl_args *uap, struct file *fp)
   94 {
   95         struct pci_bar_mmap32 pbm32;
   96         struct pci_bar_mmap pbm;
   97         int error;
   98 
   99         error = copyin(uap->data, &pbm32, sizeof(pbm32));
  100         if (error != 0)
  101                 return (error);
  102         PTRIN_CP(pbm32, pbm, pbm_map_base);
  103         CP(pbm32, pbm, pbm_sel);
  104         CP(pbm32, pbm, pbm_reg);
  105         CP(pbm32, pbm, pbm_flags);
  106         CP(pbm32, pbm, pbm_memattr);
  107         pbm.pbm_bar_length = PAIR32TO64(uint64_t, pbm32.pbm_bar_length);
  108         error = fo_ioctl(fp, PCIOCBARMMAP, (caddr_t)&pbm, td->td_ucred, td);
  109         if (error == 0) {
  110                 PTROUT_CP(pbm, pbm32, pbm_map_base);
  111                 CP(pbm, pbm32, pbm_map_length);
  112 #if BYTE_ORDER == LITTLE_ENDIAN
  113                 pbm32.pbm_bar_length1 = pbm.pbm_bar_length;
  114                 pbm32.pbm_bar_length2 = pbm.pbm_bar_length >> 32;
  115 #else
  116                 pbm32.pbm_bar_length1 = pbm.pbm_bar_length >> 32;
  117                 pbm32.pbm_bar_length2 = pbm.pbm_bar_length;
  118 #endif
  119                 CP(pbm, pbm32, pbm_bar_off);
  120                 error = copyout(&pbm32, uap->data, sizeof(pbm32));
  121         }
  122         return (error);
  123 }
  124 
  125 static int
  126 freebsd32_ioctl_sg(struct thread *td,
  127     struct freebsd32_ioctl_args *uap, struct file *fp)
  128 {
  129         struct sg_io_hdr io;
  130         struct sg_io_hdr32 io32;
  131         int error;
  132 
  133         if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0)
  134                 return (error);
  135 
  136         CP(io32, io, interface_id);
  137         CP(io32, io, dxfer_direction);
  138         CP(io32, io, cmd_len);
  139         CP(io32, io, mx_sb_len);
  140         CP(io32, io, iovec_count);
  141         CP(io32, io, dxfer_len);
  142         PTRIN_CP(io32, io, dxferp);
  143         PTRIN_CP(io32, io, cmdp);
  144         PTRIN_CP(io32, io, sbp);
  145         CP(io32, io, timeout);
  146         CP(io32, io, flags);
  147         CP(io32, io, pack_id);
  148         PTRIN_CP(io32, io, usr_ptr);
  149         CP(io32, io, status);
  150         CP(io32, io, masked_status);
  151         CP(io32, io, msg_status);
  152         CP(io32, io, sb_len_wr);
  153         CP(io32, io, host_status);
  154         CP(io32, io, driver_status);
  155         CP(io32, io, resid);
  156         CP(io32, io, duration);
  157         CP(io32, io, info);
  158 
  159         if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
  160                 return (error);
  161 
  162         CP(io, io32, interface_id);
  163         CP(io, io32, dxfer_direction);
  164         CP(io, io32, cmd_len);
  165         CP(io, io32, mx_sb_len);
  166         CP(io, io32, iovec_count);
  167         CP(io, io32, dxfer_len);
  168         PTROUT_CP(io, io32, dxferp);
  169         PTROUT_CP(io, io32, cmdp);
  170         PTROUT_CP(io, io32, sbp);
  171         CP(io, io32, timeout);
  172         CP(io, io32, flags);
  173         CP(io, io32, pack_id);
  174         PTROUT_CP(io, io32, usr_ptr);
  175         CP(io, io32, status);
  176         CP(io, io32, masked_status);
  177         CP(io, io32, msg_status);
  178         CP(io, io32, sb_len_wr);
  179         CP(io, io32, host_status);
  180         CP(io, io32, driver_status);
  181         CP(io, io32, resid);
  182         CP(io, io32, duration);
  183         CP(io, io32, info);
  184 
  185         error = copyout(&io32, uap->data, sizeof(io32));
  186 
  187         return (error);
  188 }
  189 
  190 int
  191 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
  192 {
  193         struct ioctl_args ap /*{
  194                 int     fd;
  195                 u_long  com;
  196                 caddr_t data;
  197         }*/ ;
  198         struct file *fp;
  199         cap_rights_t rights;
  200         int error;
  201 
  202         error = fget(td, uap->fd, cap_rights_init_one(&rights, CAP_IOCTL), &fp);
  203         if (error != 0)
  204                 return (error);
  205         if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
  206                 fdrop(fp, td);
  207                 return (EBADF);
  208         }
  209 
  210         switch (uap->com) {
  211         case MEMRANGE_GET32:    /* FALLTHROUGH */
  212         case MEMRANGE_SET32:
  213                 error = freebsd32_ioctl_memrange(td, uap, fp);
  214                 break;
  215 
  216         case SG_IO_32:
  217                 error = freebsd32_ioctl_sg(td, uap, fp);
  218                 break;
  219 
  220         case PCIOCBARMMAP_32:
  221                 error = freebsd32_ioctl_barmmap(td, uap, fp);
  222                 break;
  223 
  224         default:
  225                 fdrop(fp, td);
  226                 ap.fd = uap->fd;
  227                 ap.com = uap->com;
  228                 PTRIN_CP(*uap, ap, data);
  229                 return sys_ioctl(td, &ap);
  230         }
  231 
  232         fdrop(fp, td);
  233         return (error);
  234 }

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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