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freebsd-dev/sys/compat/freebsd32/freebsd32_ioctl.c
Pedro F. Giffuni 51369649b0 sys: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:43:44 +00:00

455 lines
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C
Raw Blame History

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2008 David E. O'Brien
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/capsicum.h>
#include <sys/cdio.h>
#include <sys/fcntl.h>
#include <sys/filio.h>
#include <sys/file.h>
#include <sys/ioccom.h>
#include <sys/malloc.h>
#include <sys/mdioctl.h>
#include <sys/memrange.h>
#include <sys/pciio.h>
#include <sys/proc.h>
#include <sys/syscall.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
#include <compat/freebsd32/freebsd32.h>
#include <compat/freebsd32/freebsd32_ioctl.h>
#include <compat/freebsd32/freebsd32_proto.h>
CTASSERT((sizeof(struct md_ioctl32)) == 436);
CTASSERT(sizeof(struct ioc_read_toc_entry32) == 8);
CTASSERT(sizeof(struct mem_range_op32) == 12);
CTASSERT(sizeof(struct pci_conf_io32) == 36);
CTASSERT(sizeof(struct pci_match_conf32) == 44);
CTASSERT(sizeof(struct pci_conf32) == 44);
static int
freebsd32_ioctl_md(struct thread *td, struct freebsd32_ioctl_args *uap,
struct file *fp)
{
struct md_ioctl mdv;
struct md_ioctl32 md32;
u_long com = 0;
int i, error;
if (uap->com & IOC_IN) {
if ((error = copyin(uap->data, &md32, sizeof(md32)))) {
return (error);
}
CP(md32, mdv, md_version);
CP(md32, mdv, md_unit);
CP(md32, mdv, md_type);
PTRIN_CP(md32, mdv, md_file);
CP(md32, mdv, md_mediasize);
CP(md32, mdv, md_sectorsize);
CP(md32, mdv, md_options);
CP(md32, mdv, md_base);
CP(md32, mdv, md_fwheads);
CP(md32, mdv, md_fwsectors);
PTRIN_CP(md32, mdv, md_label);
} else if (uap->com & IOC_OUT) {
/*
* Zero the buffer so the user always
* gets back something deterministic.
*/
bzero(&mdv, sizeof mdv);
}
switch (uap->com) {
case MDIOCATTACH_32:
com = MDIOCATTACH;
break;
case MDIOCDETACH_32:
com = MDIOCDETACH;
break;
case MDIOCQUERY_32:
com = MDIOCQUERY;
break;
case MDIOCLIST_32:
com = MDIOCLIST;
break;
default:
panic("%s: unknown MDIOC %#x", __func__, uap->com);
}
error = fo_ioctl(fp, com, (caddr_t)&mdv, td->td_ucred, td);
if (error == 0 && (com & IOC_OUT)) {
CP(mdv, md32, md_version);
CP(mdv, md32, md_unit);
CP(mdv, md32, md_type);
PTROUT_CP(mdv, md32, md_file);
CP(mdv, md32, md_mediasize);
CP(mdv, md32, md_sectorsize);
CP(mdv, md32, md_options);
CP(mdv, md32, md_base);
CP(mdv, md32, md_fwheads);
CP(mdv, md32, md_fwsectors);
PTROUT_CP(mdv, md32, md_label);
if (com == MDIOCLIST) {
/*
* Use MDNPAD, and not MDNPAD32. Padding is
* allocated and used by compat32 ABI.
*/
for (i = 0; i < MDNPAD; i++)
CP(mdv, md32, md_pad[i]);
}
error = copyout(&md32, uap->data, sizeof(md32));
}
return error;
}
static int
freebsd32_ioctl_ioc_read_toc(struct thread *td,
struct freebsd32_ioctl_args *uap, struct file *fp)
{
struct ioc_read_toc_entry toce;
struct ioc_read_toc_entry32 toce32;
int error;
if ((error = copyin(uap->data, &toce32, sizeof(toce32))))
return (error);
CP(toce32, toce, address_format);
CP(toce32, toce, starting_track);
CP(toce32, toce, data_len);
PTRIN_CP(toce32, toce, data);
if ((error = fo_ioctl(fp, CDIOREADTOCENTRYS, (caddr_t)&toce,
td->td_ucred, td))) {
CP(toce, toce32, address_format);
CP(toce, toce32, starting_track);
CP(toce, toce32, data_len);
PTROUT_CP(toce, toce32, data);
error = copyout(&toce32, uap->data, sizeof(toce32));
}
return error;
}
static int
freebsd32_ioctl_fiodgname(struct thread *td,
struct freebsd32_ioctl_args *uap, struct file *fp)
{
struct fiodgname_arg fgn;
struct fiodgname_arg32 fgn32;
int error;
if ((error = copyin(uap->data, &fgn32, sizeof fgn32)) != 0)
return (error);
CP(fgn32, fgn, len);
PTRIN_CP(fgn32, fgn, buf);
error = fo_ioctl(fp, FIODGNAME, (caddr_t)&fgn, td->td_ucred, td);
return (error);
}
static int
freebsd32_ioctl_memrange(struct thread *td,
struct freebsd32_ioctl_args *uap, struct file *fp)
{
struct mem_range_op mro;
struct mem_range_op32 mro32;
int error;
u_long com;
if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
return (error);
PTRIN_CP(mro32, mro, mo_desc);
CP(mro32, mro, mo_arg[0]);
CP(mro32, mro, mo_arg[1]);
com = 0;
switch (uap->com) {
case MEMRANGE_GET32:
com = MEMRANGE_GET;
break;
case MEMRANGE_SET32:
com = MEMRANGE_SET;
break;
default:
panic("%s: unknown MEMRANGE %#x", __func__, uap->com);
}
if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
return (error);
if ( (com & IOC_OUT) ) {
CP(mro, mro32, mo_arg[0]);
CP(mro, mro32, mo_arg[1]);
error = copyout(&mro32, uap->data, sizeof(mro32));
}
return (error);
}
static int
freebsd32_ioctl_pciocgetconf(struct thread *td,
struct freebsd32_ioctl_args *uap, struct file *fp)
{
struct pci_conf_io pci;
struct pci_conf_io32 pci32;
struct pci_match_conf32 pmc32;
struct pci_match_conf32 *pmc32p;
struct pci_match_conf pmc;
struct pci_match_conf *pmcp;
struct pci_conf32 pc32;
struct pci_conf32 *pc32p;
struct pci_conf pc;
struct pci_conf *pcp;
u_int32_t i;
u_int32_t npat_to_convert;
u_int32_t nmatch_to_convert;
vm_offset_t addr;
int error;
if ((error = copyin(uap->data, &pci32, sizeof(pci32))) != 0)
return (error);
CP(pci32, pci, num_patterns);
CP(pci32, pci, offset);
CP(pci32, pci, generation);
npat_to_convert = pci32.pat_buf_len / sizeof(struct pci_match_conf32);
pci.pat_buf_len = npat_to_convert * sizeof(struct pci_match_conf);
pci.patterns = NULL;
nmatch_to_convert = pci32.match_buf_len / sizeof(struct pci_conf32);
pci.match_buf_len = nmatch_to_convert * sizeof(struct pci_conf);
pci.matches = NULL;
if ((error = copyout_map(td, &addr, pci.pat_buf_len)) != 0)
goto cleanup;
pci.patterns = (struct pci_match_conf *)addr;
if ((error = copyout_map(td, &addr, pci.match_buf_len)) != 0)
goto cleanup;
pci.matches = (struct pci_conf *)addr;
npat_to_convert = min(npat_to_convert, pci.num_patterns);
for (i = 0, pmc32p = (struct pci_match_conf32 *)PTRIN(pci32.patterns),
pmcp = pci.patterns;
i < npat_to_convert; i++, pmc32p++, pmcp++) {
if ((error = copyin(pmc32p, &pmc32, sizeof(pmc32))) != 0)
goto cleanup;
CP(pmc32,pmc,pc_sel);
strlcpy(pmc.pd_name, pmc32.pd_name, sizeof(pmc.pd_name));
CP(pmc32,pmc,pd_unit);
CP(pmc32,pmc,pc_vendor);
CP(pmc32,pmc,pc_device);
CP(pmc32,pmc,pc_class);
CP(pmc32,pmc,flags);
if ((error = copyout(&pmc, pmcp, sizeof(pmc))) != 0)
goto cleanup;
}
if ((error = fo_ioctl(fp, PCIOCGETCONF, (caddr_t)&pci,
td->td_ucred, td)) != 0)
goto cleanup;
nmatch_to_convert = min(nmatch_to_convert, pci.num_matches);
for (i = 0, pcp = pci.matches,
pc32p = (struct pci_conf32 *)PTRIN(pci32.matches);
i < nmatch_to_convert; i++, pcp++, pc32p++) {
if ((error = copyin(pcp, &pc, sizeof(pc))) != 0)
goto cleanup;
CP(pc,pc32,pc_sel);
CP(pc,pc32,pc_hdr);
CP(pc,pc32,pc_subvendor);
CP(pc,pc32,pc_subdevice);
CP(pc,pc32,pc_vendor);
CP(pc,pc32,pc_device);
CP(pc,pc32,pc_class);
CP(pc,pc32,pc_subclass);
CP(pc,pc32,pc_progif);
CP(pc,pc32,pc_revid);
strlcpy(pc32.pd_name, pc.pd_name, sizeof(pc32.pd_name));
CP(pc,pc32,pd_unit);
if ((error = copyout(&pc32, pc32p, sizeof(pc32))) != 0)
goto cleanup;
}
CP(pci, pci32, num_matches);
CP(pci, pci32, offset);
CP(pci, pci32, generation);
CP(pci, pci32, status);
error = copyout(&pci32, uap->data, sizeof(pci32));
cleanup:
if (pci.patterns)
copyout_unmap(td, (vm_offset_t)pci.patterns, pci.pat_buf_len);
if (pci.matches)
copyout_unmap(td, (vm_offset_t)pci.matches, pci.match_buf_len);
return (error);
}
static int
freebsd32_ioctl_sg(struct thread *td,
struct freebsd32_ioctl_args *uap, struct file *fp)
{
struct sg_io_hdr io;
struct sg_io_hdr32 io32;
int error;
if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0)
return (error);
CP(io32, io, interface_id);
CP(io32, io, dxfer_direction);
CP(io32, io, cmd_len);
CP(io32, io, mx_sb_len);
CP(io32, io, iovec_count);
CP(io32, io, dxfer_len);
PTRIN_CP(io32, io, dxferp);
PTRIN_CP(io32, io, cmdp);
PTRIN_CP(io32, io, sbp);
CP(io32, io, timeout);
CP(io32, io, flags);
CP(io32, io, pack_id);
PTRIN_CP(io32, io, usr_ptr);
CP(io32, io, status);
CP(io32, io, masked_status);
CP(io32, io, msg_status);
CP(io32, io, sb_len_wr);
CP(io32, io, host_status);
CP(io32, io, driver_status);
CP(io32, io, resid);
CP(io32, io, duration);
CP(io32, io, info);
if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
return (error);
CP(io, io32, interface_id);
CP(io, io32, dxfer_direction);
CP(io, io32, cmd_len);
CP(io, io32, mx_sb_len);
CP(io, io32, iovec_count);
CP(io, io32, dxfer_len);
PTROUT_CP(io, io32, dxferp);
PTROUT_CP(io, io32, cmdp);
PTROUT_CP(io, io32, sbp);
CP(io, io32, timeout);
CP(io, io32, flags);
CP(io, io32, pack_id);
PTROUT_CP(io, io32, usr_ptr);
CP(io, io32, status);
CP(io, io32, masked_status);
CP(io, io32, msg_status);
CP(io, io32, sb_len_wr);
CP(io, io32, host_status);
CP(io, io32, driver_status);
CP(io, io32, resid);
CP(io, io32, duration);
CP(io, io32, info);
error = copyout(&io32, uap->data, sizeof(io32));
return (error);
}
int
freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
{
struct ioctl_args ap /*{
int fd;
u_long com;
caddr_t data;
}*/ ;
struct file *fp;
cap_rights_t rights;
int error;
error = fget(td, uap->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
if (error != 0)
return (error);
if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
fdrop(fp, td);
return (EBADF);
}
switch (uap->com) {
case MDIOCATTACH_32: /* FALLTHROUGH */
case MDIOCDETACH_32: /* FALLTHROUGH */
case MDIOCQUERY_32: /* FALLTHROUGH */
case MDIOCLIST_32:
error = freebsd32_ioctl_md(td, uap, fp);
break;
case CDIOREADTOCENTRYS_32:
error = freebsd32_ioctl_ioc_read_toc(td, uap, fp);
break;
case FIODGNAME_32:
error = freebsd32_ioctl_fiodgname(td, uap, fp);
break;
case MEMRANGE_GET32: /* FALLTHROUGH */
case MEMRANGE_SET32:
error = freebsd32_ioctl_memrange(td, uap, fp);
break;
case PCIOCGETCONF_32:
error = freebsd32_ioctl_pciocgetconf(td, uap, fp);
break;
case SG_IO_32:
error = freebsd32_ioctl_sg(td, uap, fp);
break;
default:
fdrop(fp, td);
ap.fd = uap->fd;
ap.com = uap->com;
PTRIN_CP(*uap, ap, data);
return sys_ioctl(td, &ap);
}
fdrop(fp, td);
return error;
}
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