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freebsd-skq/sys/compat/freebsd32/freebsd32_misc.c
bde 8bff5fd956 Fix the encoding of major and minor numbers in 64-bit dev_t by restoring 
the old encodings for the lower 16 and 32 bits and only using the
higher 32 bits for unusually large major and minor numbers.  This
change breaks compatibility with the previous encoding (which was only
used in -current).

Fix truncation to (essentially) 16-bit dev_t in newnfs v3.

Any encoding of device numbers gives an ABI, so it can't be changed
without translations for compatibility.  Extra bits give the much
larger complication that the translations need to compress into fewer
bits.  Fortunately, more than 32 bits are rarely needed, so
compression is rarely needed except for 16-bit linux dev_t where it
was always needed but never done.

The previous encoding moved the major number into the top 32 bits.
Almost no translation code handled this, so the major number was blindly
truncated away in most 32-bit encodings.  E.g., for ffs, mknod(8) with
major = 1 and minor = 2 gave dev_t = 0x10000002; ffs cannot represent
this and blindly truncated it to 2.  But if this mknod was run on any
released version of FreeBSD, it gives dev_t = 0x102.  ffs can represent
this, but in the previous encoding it was not decoded, giving major = 0,
minor = 0x102.

The presence of bugs was most obvious for exporting dev_t's from an
old system to -current, since bugs in newnfs augment them.  I fixed
oldnfs to support 32-bit dev_t in 1996 (r16634), but this regressed
to 16-bit dev_t in newnfs, first to the old 16-bit encoding and then
further in -current.  E.g., old ad0 with major = 234, minor = 0x10002
had the correct (major, minor) number on the wire, but newnfs truncated
this to (234, 2) and then the previous encoding shifted the major
number into oblivion as seen by ffs or old applications.

I first tried to fix this by translating on every ABI/API boundary, but
there are too many boundaries and too many sloppy translations by blind
truncation.  So use the old encoding for the low 32 bits so that sloppy
translations work no worse than before provided the high 32 bits are
not set.  Add some error checking for when bits are lost.  Keep not
doing any error checking for translations for almost everything in
compat/linux.

compat/freebsd32/freebsd32_misc.c:
Optionally check for losing bits after possibly-truncating assignments as
before.

compat/linux/linux_stats.c:
Depend on the representation being compatible with Linux's (or just with
itself for local use) and spell some of the translations as assignments in
a macro that hides the details.

fs/nfsclient/nfs_clcomsubs.c:
Essentially the same fix as in 1996, except there is now no possible
truncation in makedev() itself.  Also fix nearby style bugs.

kern/vfs_syscalls.c:
As for freebsd32.  Also update the sysctl description to include file
numbers, and change it to describe device ids as device numbers.

sys/types.h:
Use inline functions (wrapped by macros) since the expressions are now
a bit too complicated for plain macros.  Describe the encoding and
some of the reasons for it.  16-bit compatibility didn't leave many
reasonable choices for the 32-bit encoding, and 32-bit compatibility
doesn't leave many reasonable choices for the 64-bit encoding.  My
choice is to put the 8 new minor bits in the low 8 bits of the top 32
bits.  This minimizes discontiguities.

Reviewed by:	kib (except for rewrite of the comment in linux_stats.c)
2018-06-13 12:22:00 +00:00

3490 lines
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2002 Doug Rabson
* 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.
*
* 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_inet.h"
#include "opt_inet6.h"
#include "opt_ktrace.h"
#define __ELF_WORD_SIZE 32
#ifdef COMPAT_FREEBSD11
#define _WANT_FREEBSD11_KEVENT
#endif
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/capsicum.h>
#include <sys/clock.h>
#include <sys/exec.h>
#include <sys/fcntl.h>
#include <sys/filedesc.h>
#include <sys/imgact.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/linker.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/file.h> /* Must come after sys/malloc.h */
#include <sys/imgact.h>
#include <sys/mbuf.h>
#include <sys/mman.h>
#include <sys/module.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/procctl.h>
#include <sys/reboot.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/selinfo.h>
#include <sys/eventvar.h> /* Must come after sys/selinfo.h */
#include <sys/pipe.h> /* Must come after sys/selinfo.h */
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.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 <sys/thr.h>
#include <sys/unistd.h>
#include <sys/ucontext.h>
#include <sys/vnode.h>
#include <sys/wait.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#ifdef KTRACE
#include <sys/ktrace.h>
#endif
#ifdef INET
#include <netinet/in.h>
#endif
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
#include <vm/vm_extern.h>
#include <machine/cpu.h>
#include <machine/elf.h>
#include <security/audit/audit.h>
#include <compat/freebsd32/freebsd32_util.h>
#include <compat/freebsd32/freebsd32.h>
#include <compat/freebsd32/freebsd32_ipc.h>
#include <compat/freebsd32/freebsd32_misc.h>
#include <compat/freebsd32/freebsd32_signal.h>
#include <compat/freebsd32/freebsd32_proto.h>
FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD");
#ifdef __amd64__
CTASSERT(sizeof(struct timeval32) == 8);
CTASSERT(sizeof(struct timespec32) == 8);
CTASSERT(sizeof(struct itimerval32) == 16);
CTASSERT(sizeof(struct bintime32) == 12);
#endif
CTASSERT(sizeof(struct statfs32) == 256);
#ifdef __amd64__
CTASSERT(sizeof(struct rusage32) == 72);
#endif
CTASSERT(sizeof(struct sigaltstack32) == 12);
#ifdef __amd64__
CTASSERT(sizeof(struct kevent32) == 56);
#else
CTASSERT(sizeof(struct kevent32) == 64);
#endif
CTASSERT(sizeof(struct iovec32) == 8);
CTASSERT(sizeof(struct msghdr32) == 28);
#ifdef __amd64__
CTASSERT(sizeof(struct stat32) == 208);
CTASSERT(sizeof(struct freebsd11_stat32) == 96);
#endif
CTASSERT(sizeof(struct sigaction32) == 24);
static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count);
static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp);
void
freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32)
{
TV_CP(*s, *s32, ru_utime);
TV_CP(*s, *s32, ru_stime);
CP(*s, *s32, ru_maxrss);
CP(*s, *s32, ru_ixrss);
CP(*s, *s32, ru_idrss);
CP(*s, *s32, ru_isrss);
CP(*s, *s32, ru_minflt);
CP(*s, *s32, ru_majflt);
CP(*s, *s32, ru_nswap);
CP(*s, *s32, ru_inblock);
CP(*s, *s32, ru_oublock);
CP(*s, *s32, ru_msgsnd);
CP(*s, *s32, ru_msgrcv);
CP(*s, *s32, ru_nsignals);
CP(*s, *s32, ru_nvcsw);
CP(*s, *s32, ru_nivcsw);
}
int
freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap)
{
int error, status;
struct rusage32 ru32;
struct rusage ru, *rup;
if (uap->rusage != NULL)
rup = &ru;
else
rup = NULL;
error = kern_wait(td, uap->pid, &status, uap->options, rup);
if (error)
return (error);
if (uap->status != NULL)
error = copyout(&status, uap->status, sizeof(status));
if (uap->rusage != NULL && error == 0) {
freebsd32_rusage_out(&ru, &ru32);
error = copyout(&ru32, uap->rusage, sizeof(ru32));
}
return (error);
}
int
freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap)
{
struct wrusage32 wru32;
struct __wrusage wru, *wrup;
struct siginfo32 si32;
struct __siginfo si, *sip;
int error, status;
if (uap->wrusage != NULL)
wrup = &wru;
else
wrup = NULL;
if (uap->info != NULL) {
sip = &si;
bzero(sip, sizeof(*sip));
} else
sip = NULL;
error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id),
&status, uap->options, wrup, sip);
if (error != 0)
return (error);
if (uap->status != NULL)
error = copyout(&status, uap->status, sizeof(status));
if (uap->wrusage != NULL && error == 0) {
freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
error = copyout(&wru32, uap->wrusage, sizeof(wru32));
}
if (uap->info != NULL && error == 0) {
siginfo_to_siginfo32 (&si, &si32);
error = copyout(&si32, uap->info, sizeof(si32));
}
return (error);
}
#ifdef COMPAT_FREEBSD4
static void
copy_statfs(struct statfs *in, struct statfs32 *out)
{
statfs_scale_blocks(in, INT32_MAX);
bzero(out, sizeof(*out));
CP(*in, *out, f_bsize);
out->f_iosize = MIN(in->f_iosize, INT32_MAX);
CP(*in, *out, f_blocks);
CP(*in, *out, f_bfree);
CP(*in, *out, f_bavail);
out->f_files = MIN(in->f_files, INT32_MAX);
out->f_ffree = MIN(in->f_ffree, INT32_MAX);
CP(*in, *out, f_fsid);
CP(*in, *out, f_owner);
CP(*in, *out, f_type);
CP(*in, *out, f_flags);
out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX);
out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX);
strlcpy(out->f_fstypename,
in->f_fstypename, MFSNAMELEN);
strlcpy(out->f_mntonname,
in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN));
out->f_syncreads = MIN(in->f_syncreads, INT32_MAX);
out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX);
strlcpy(out->f_mntfromname,
in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN));
}
#endif
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_getfsstat(struct thread *td,
struct freebsd4_freebsd32_getfsstat_args *uap)
{
struct statfs *buf, *sp;
struct statfs32 stat32;
size_t count, size, copycount;
int error;
count = uap->bufsize / sizeof(struct statfs32);
size = count * sizeof(struct statfs);
error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode);
if (size > 0) {
sp = buf;
copycount = count;
while (copycount > 0 && error == 0) {
copy_statfs(sp, &stat32);
error = copyout(&stat32, uap->buf, sizeof(stat32));
sp++;
uap->buf++;
copycount--;
}
free(buf, M_STATFS);
}
if (error == 0)
td->td_retval[0] = count;
return (error);
}
#endif
#ifdef COMPAT_FREEBSD10
int
freebsd10_freebsd32_pipe(struct thread *td,
struct freebsd10_freebsd32_pipe_args *uap) {
return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap));
}
#endif
int
freebsd32_sigaltstack(struct thread *td,
struct freebsd32_sigaltstack_args *uap)
{
struct sigaltstack32 s32;
struct sigaltstack ss, oss, *ssp;
int error;
if (uap->ss != NULL) {
error = copyin(uap->ss, &s32, sizeof(s32));
if (error)
return (error);
PTRIN_CP(s32, ss, ss_sp);
CP(s32, ss, ss_size);
CP(s32, ss, ss_flags);
ssp = &ss;
} else
ssp = NULL;
error = kern_sigaltstack(td, ssp, &oss);
if (error == 0 && uap->oss != NULL) {
PTROUT_CP(oss, s32, ss_sp);
CP(oss, s32, ss_size);
CP(oss, s32, ss_flags);
error = copyout(&s32, uap->oss, sizeof(s32));
}
return (error);
}
/*
* Custom version of exec_copyin_args() so that we can translate
* the pointers.
*/
int
freebsd32_exec_copyin_args(struct image_args *args, char *fname,
enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv)
{
char *argp, *envp;
u_int32_t *p32, arg;
size_t length;
int error;
bzero(args, sizeof(*args));
if (argv == NULL)
return (EFAULT);
/*
* Allocate demand-paged memory for the file name, argument, and
* environment strings.
*/
error = exec_alloc_args(args);
if (error != 0)
return (error);
/*
* Copy the file name.
*/
if (fname != NULL) {
args->fname = args->buf;
error = (segflg == UIO_SYSSPACE) ?
copystr(fname, args->fname, PATH_MAX, &length) :
copyinstr(fname, args->fname, PATH_MAX, &length);
if (error != 0)
goto err_exit;
} else
length = 0;
args->begin_argv = args->buf + length;
args->endp = args->begin_argv;
args->stringspace = ARG_MAX;
/*
* extract arguments first
*/
p32 = argv;
for (;;) {
error = copyin(p32++, &arg, sizeof(arg));
if (error)
goto err_exit;
if (arg == 0)
break;
argp = PTRIN(arg);
error = copyinstr(argp, args->endp, args->stringspace, &length);
if (error) {
if (error == ENAMETOOLONG)
error = E2BIG;
goto err_exit;
}
args->stringspace -= length;
args->endp += length;
args->argc++;
}
args->begin_envv = args->endp;
/*
* extract environment strings
*/
if (envv) {
p32 = envv;
for (;;) {
error = copyin(p32++, &arg, sizeof(arg));
if (error)
goto err_exit;
if (arg == 0)
break;
envp = PTRIN(arg);
error = copyinstr(envp, args->endp, args->stringspace,
&length);
if (error) {
if (error == ENAMETOOLONG)
error = E2BIG;
goto err_exit;
}
args->stringspace -= length;
args->endp += length;
args->envc++;
}
}
return (0);
err_exit:
exec_free_args(args);
return (error);
}
int
freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
{
struct image_args eargs;
struct vmspace *oldvmspace;
int error;
error = pre_execve(td, &oldvmspace);
if (error != 0)
return (error);
error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE,
uap->argv, uap->envv);
if (error == 0)
error = kern_execve(td, &eargs, NULL);
post_execve(td, error, oldvmspace);
return (error);
}
int
freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
{
struct image_args eargs;
struct vmspace *oldvmspace;
int error;
error = pre_execve(td, &oldvmspace);
if (error != 0)
return (error);
error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE,
uap->argv, uap->envv);
if (error == 0) {
eargs.fd = uap->fd;
error = kern_execve(td, &eargs, NULL);
}
post_execve(td, error, oldvmspace);
return (error);
}
#if defined(COMPAT_FREEBSD11)
int
freebsd11_freebsd32_mknod(struct thread *td,
struct freebsd11_freebsd32_mknod_args *uap)
{
return (kern_mknodat(td, AT_FDCWD, uap->path, UIO_USERSPACE, uap->mode,
uap->dev));
}
int
freebsd11_freebsd32_mknodat(struct thread *td,
struct freebsd11_freebsd32_mknodat_args *uap)
{
return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode,
uap->dev));
}
#endif /* COMPAT_FREEBSD11 */
int
freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
{
int prot;
prot = uap->prot;
#if defined(__amd64__)
if (i386_read_exec && (prot & PROT_READ) != 0)
prot |= PROT_EXEC;
#endif
return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len,
prot));
}
int
freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
{
int prot;
prot = uap->prot;
#if defined(__amd64__)
if (i386_read_exec && (prot & PROT_READ))
prot |= PROT_EXEC;
#endif
return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot,
uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos)));
}
#ifdef COMPAT_FREEBSD6
int
freebsd6_freebsd32_mmap(struct thread *td,
struct freebsd6_freebsd32_mmap_args *uap)
{
int prot;
prot = uap->prot;
#if defined(__amd64__)
if (i386_read_exec && (prot & PROT_READ))
prot |= PROT_EXEC;
#endif
return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot,
uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos)));
}
#endif
int
freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
{
struct itimerval itv, oitv, *itvp;
struct itimerval32 i32;
int error;
if (uap->itv != NULL) {
error = copyin(uap->itv, &i32, sizeof(i32));
if (error)
return (error);
TV_CP(i32, itv, it_interval);
TV_CP(i32, itv, it_value);
itvp = &itv;
} else
itvp = NULL;
error = kern_setitimer(td, uap->which, itvp, &oitv);
if (error || uap->oitv == NULL)
return (error);
TV_CP(oitv, i32, it_interval);
TV_CP(oitv, i32, it_value);
return (copyout(&i32, uap->oitv, sizeof(i32)));
}
int
freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
{
struct itimerval itv;
struct itimerval32 i32;
int error;
error = kern_getitimer(td, uap->which, &itv);
if (error || uap->itv == NULL)
return (error);
TV_CP(itv, i32, it_interval);
TV_CP(itv, i32, it_value);
return (copyout(&i32, uap->itv, sizeof(i32)));
}
int
freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
{
struct timeval32 tv32;
struct timeval tv, *tvp;
int error;
if (uap->tv != NULL) {
error = copyin(uap->tv, &tv32, sizeof(tv32));
if (error)
return (error);
CP(tv32, tv, tv_sec);
CP(tv32, tv, tv_usec);
tvp = &tv;
} else
tvp = NULL;
/*
* XXX Do pointers need PTRIN()?
*/
return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
sizeof(int32_t) * 8));
}
int
freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
{
struct timespec32 ts32;
struct timespec ts;
struct timeval tv, *tvp;
sigset_t set, *uset;
int error;
if (uap->ts != NULL) {
error = copyin(uap->ts, &ts32, sizeof(ts32));
if (error != 0)
return (error);
CP(ts32, ts, tv_sec);
CP(ts32, ts, tv_nsec);
TIMESPEC_TO_TIMEVAL(&tv, &ts);
tvp = &tv;
} else
tvp = NULL;
if (uap->sm != NULL) {
error = copyin(uap->sm, &set, sizeof(set));
if (error != 0)
return (error);
uset = &set;
} else
uset = NULL;
/*
* XXX Do pointers need PTRIN()?
*/
error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
uset, sizeof(int32_t) * 8);
return (error);
}
/*
* Copy 'count' items into the destination list pointed to by uap->eventlist.
*/
static int
freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
{
struct freebsd32_kevent_args *uap;
struct kevent32 ks32[KQ_NEVENTS];
uint64_t e;
int i, j, error;
KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
uap = (struct freebsd32_kevent_args *)arg;
for (i = 0; i < count; i++) {
CP(kevp[i], ks32[i], ident);
CP(kevp[i], ks32[i], filter);
CP(kevp[i], ks32[i], flags);
CP(kevp[i], ks32[i], fflags);
#if BYTE_ORDER == LITTLE_ENDIAN
ks32[i].data1 = kevp[i].data;
ks32[i].data2 = kevp[i].data >> 32;
#else
ks32[i].data1 = kevp[i].data >> 32;
ks32[i].data2 = kevp[i].data;
#endif
PTROUT_CP(kevp[i], ks32[i], udata);
for (j = 0; j < nitems(kevp->ext); j++) {
e = kevp[i].ext[j];
#if BYTE_ORDER == LITTLE_ENDIAN
ks32[i].ext64[2 * j] = e;
ks32[i].ext64[2 * j + 1] = e >> 32;
#else
ks32[i].ext64[2 * j] = e >> 32;
ks32[i].ext64[2 * j + 1] = e;
#endif
}
}
error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
if (error == 0)
uap->eventlist += count;
return (error);
}
/*
* Copy 'count' items from the list pointed to by uap->changelist.
*/
static int
freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
{
struct freebsd32_kevent_args *uap;
struct kevent32 ks32[KQ_NEVENTS];
uint64_t e;
int i, j, error;
KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
uap = (struct freebsd32_kevent_args *)arg;
error = copyin(uap->changelist, ks32, count * sizeof *ks32);
if (error)
goto done;
uap->changelist += count;
for (i = 0; i < count; i++) {
CP(ks32[i], kevp[i], ident);
CP(ks32[i], kevp[i], filter);
CP(ks32[i], kevp[i], flags);
CP(ks32[i], kevp[i], fflags);
kevp[i].data = PAIR32TO64(uint64_t, ks32[i].data);
PTRIN_CP(ks32[i], kevp[i], udata);
for (j = 0; j < nitems(kevp->ext); j++) {
#if BYTE_ORDER == LITTLE_ENDIAN
e = ks32[i].ext64[2 * j + 1];
e <<= 32;
e += ks32[i].ext64[2 * j];
#else
e = ks32[i].ext64[2 * j];
e <<= 32;
e += ks32[i].ext64[2 * j + 1];
#endif
kevp[i].ext[j] = e;
}
}
done:
return (error);
}
int
freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
{
struct timespec32 ts32;
struct timespec ts, *tsp;
struct kevent_copyops k_ops = {
.arg = uap,
.k_copyout = freebsd32_kevent_copyout,
.k_copyin = freebsd32_kevent_copyin,
};
#ifdef KTRACE
struct kevent32 *eventlist = uap->eventlist;
#endif
int error;
if (uap->timeout) {
error = copyin(uap->timeout, &ts32, sizeof(ts32));
if (error)
return (error);
CP(ts32, ts, tv_sec);
CP(ts32, ts, tv_nsec);
tsp = &ts;
} else
tsp = NULL;
#ifdef KTRACE
if (KTRPOINT(td, KTR_STRUCT_ARRAY))
ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist,
uap->nchanges, sizeof(struct kevent32));
#endif
error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
&k_ops, tsp);
#ifdef KTRACE
if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
ktrstructarray("kevent32", UIO_USERSPACE, eventlist,
td->td_retval[0], sizeof(struct kevent32));
#endif
return (error);
}
#ifdef COMPAT_FREEBSD11
static int
freebsd32_kevent11_copyout(void *arg, struct kevent *kevp, int count)
{
struct freebsd11_freebsd32_kevent_args *uap;
struct kevent32_freebsd11 ks32[KQ_NEVENTS];
int i, error;
KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
uap = (struct freebsd11_freebsd32_kevent_args *)arg;
for (i = 0; i < count; i++) {
CP(kevp[i], ks32[i], ident);
CP(kevp[i], ks32[i], filter);
CP(kevp[i], ks32[i], flags);
CP(kevp[i], ks32[i], fflags);
CP(kevp[i], ks32[i], data);
PTROUT_CP(kevp[i], ks32[i], udata);
}
error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
if (error == 0)
uap->eventlist += count;
return (error);
}
/*
* Copy 'count' items from the list pointed to by uap->changelist.
*/
static int
freebsd32_kevent11_copyin(void *arg, struct kevent *kevp, int count)
{
struct freebsd11_freebsd32_kevent_args *uap;
struct kevent32_freebsd11 ks32[KQ_NEVENTS];
int i, j, error;
KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
uap = (struct freebsd11_freebsd32_kevent_args *)arg;
error = copyin(uap->changelist, ks32, count * sizeof *ks32);
if (error)
goto done;
uap->changelist += count;
for (i = 0; i < count; i++) {
CP(ks32[i], kevp[i], ident);
CP(ks32[i], kevp[i], filter);
CP(ks32[i], kevp[i], flags);
CP(ks32[i], kevp[i], fflags);
CP(ks32[i], kevp[i], data);
PTRIN_CP(ks32[i], kevp[i], udata);
for (j = 0; j < nitems(kevp->ext); j++)
kevp[i].ext[j] = 0;
}
done:
return (error);
}
int
freebsd11_freebsd32_kevent(struct thread *td,
struct freebsd11_freebsd32_kevent_args *uap)
{
struct timespec32 ts32;
struct timespec ts, *tsp;
struct kevent_copyops k_ops = {
.arg = uap,
.k_copyout = freebsd32_kevent11_copyout,
.k_copyin = freebsd32_kevent11_copyin,
};
#ifdef KTRACE
struct kevent32_freebsd11 *eventlist = uap->eventlist;
#endif
int error;
if (uap->timeout) {
error = copyin(uap->timeout, &ts32, sizeof(ts32));
if (error)
return (error);
CP(ts32, ts, tv_sec);
CP(ts32, ts, tv_nsec);
tsp = &ts;
} else
tsp = NULL;
#ifdef KTRACE
if (KTRPOINT(td, KTR_STRUCT_ARRAY))
ktrstructarray("kevent32_freebsd11", UIO_USERSPACE,
uap->changelist, uap->nchanges,
sizeof(struct kevent32_freebsd11));
#endif
error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
&k_ops, tsp);
#ifdef KTRACE
if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
ktrstructarray("kevent32_freebsd11", UIO_USERSPACE,
eventlist, td->td_retval[0],
sizeof(struct kevent32_freebsd11));
#endif
return (error);
}
#endif
int
freebsd32_gettimeofday(struct thread *td,
struct freebsd32_gettimeofday_args *uap)
{
struct timeval atv;
struct timeval32 atv32;
struct timezone rtz;
int error = 0;
if (uap->tp) {
microtime(&atv);
CP(atv, atv32, tv_sec);
CP(atv, atv32, tv_usec);
error = copyout(&atv32, uap->tp, sizeof (atv32));
}
if (error == 0 && uap->tzp != NULL) {
rtz.tz_minuteswest = tz_minuteswest;
rtz.tz_dsttime = tz_dsttime;
error = copyout(&rtz, uap->tzp, sizeof (rtz));
}
return (error);
}
int
freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
{
struct rusage32 s32;
struct rusage s;
int error;
error = kern_getrusage(td, uap->who, &s);
if (error)
return (error);
if (uap->rusage != NULL) {
freebsd32_rusage_out(&s, &s32);
error = copyout(&s32, uap->rusage, sizeof(s32));
}
return (error);
}
static int
freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
{
struct iovec32 iov32;
struct iovec *iov;
struct uio *uio;
u_int iovlen;
int error, i;
*uiop = NULL;
if (iovcnt > UIO_MAXIOV)
return (EINVAL);
iovlen = iovcnt * sizeof(struct iovec);
uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
iov = (struct iovec *)(uio + 1);
for (i = 0; i < iovcnt; i++) {
error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
if (error) {
free(uio, M_IOV);
return (error);
}
iov[i].iov_base = PTRIN(iov32.iov_base);
iov[i].iov_len = iov32.iov_len;
}
uio->uio_iov = iov;
uio->uio_iovcnt = iovcnt;
uio->uio_segflg = UIO_USERSPACE;
uio->uio_offset = -1;
uio->uio_resid = 0;
for (i = 0; i < iovcnt; i++) {
if (iov->iov_len > INT_MAX - uio->uio_resid) {
free(uio, M_IOV);
return (EINVAL);
}
uio->uio_resid += iov->iov_len;
iov++;
}
*uiop = uio;
return (0);
}
int
freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
{
struct uio *auio;
int error;
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_readv(td, uap->fd, auio);
free(auio, M_IOV);
return (error);
}
int
freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
{
struct uio *auio;
int error;
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_writev(td, uap->fd, auio);
free(auio, M_IOV);
return (error);
}
int
freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
{
struct uio *auio;
int error;
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
free(auio, M_IOV);
return (error);
}
int
freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
{
struct uio *auio;
int error;
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
free(auio, M_IOV);
return (error);
}
int
freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
int error)
{
struct iovec32 iov32;
struct iovec *iov;
u_int iovlen;
int i;
*iovp = NULL;
if (iovcnt > UIO_MAXIOV)
return (error);
iovlen = iovcnt * sizeof(struct iovec);
iov = malloc(iovlen, M_IOV, M_WAITOK);
for (i = 0; i < iovcnt; i++) {
error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
if (error) {
free(iov, M_IOV);
return (error);
}
iov[i].iov_base = PTRIN(iov32.iov_base);
iov[i].iov_len = iov32.iov_len;
}
*iovp = iov;
return (0);
}
static int
freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg)
{
struct msghdr32 m32;
int error;
error = copyin(msg32, &m32, sizeof(m32));
if (error)
return (error);
msg->msg_name = PTRIN(m32.msg_name);
msg->msg_namelen = m32.msg_namelen;
msg->msg_iov = PTRIN(m32.msg_iov);
msg->msg_iovlen = m32.msg_iovlen;
msg->msg_control = PTRIN(m32.msg_control);
msg->msg_controllen = m32.msg_controllen;
msg->msg_flags = m32.msg_flags;
return (0);
}
static int
freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
{
struct msghdr32 m32;
int error;
m32.msg_name = PTROUT(msg->msg_name);
m32.msg_namelen = msg->msg_namelen;
m32.msg_iov = PTROUT(msg->msg_iov);
m32.msg_iovlen = msg->msg_iovlen;
m32.msg_control = PTROUT(msg->msg_control);
m32.msg_controllen = msg->msg_controllen;
m32.msg_flags = msg->msg_flags;
error = copyout(&m32, msg32, sizeof(m32));
return (error);
}
#ifndef __mips__
#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
#else
#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1)
#endif
#define FREEBSD32_ALIGN(p) \
(((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
#define FREEBSD32_CMSG_SPACE(l) \
(FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
static size_t
freebsd32_cmsg_convert(struct cmsghdr *cm, void *data, socklen_t datalen)
{
size_t copylen;
union {
struct timespec32 ts;
struct timeval32 tv;
struct bintime32 bt;
} tmp32;
union {
struct timespec ts;
struct timeval tv;
struct bintime bt;
} *in;
in = data;
copylen = 0;
switch (cm->cmsg_level) {
case SOL_SOCKET:
switch (cm->cmsg_type) {
case SCM_TIMESTAMP:
TV_CP(*in, tmp32, tv);
copylen = sizeof(tmp32.tv);
break;
case SCM_BINTIME:
BT_CP(*in, tmp32, bt);
copylen = sizeof(tmp32.bt);
break;
case SCM_REALTIME:
case SCM_MONOTONIC:
TS_CP(*in, tmp32, ts);
copylen = sizeof(tmp32.ts);
break;
default:
break;
}
default:
break;
}
if (copylen == 0)
return (datalen);
KASSERT((datalen >= copylen), ("corrupted cmsghdr"));
bcopy(&tmp32, data, copylen);
return (copylen);
}
static int
freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
{
struct cmsghdr *cm;
void *data;
socklen_t clen, datalen, datalen_out;
int error;
caddr_t ctlbuf;
int len, maxlen, copylen;
struct mbuf *m;
error = 0;
len = msg->msg_controllen;
maxlen = msg->msg_controllen;
msg->msg_controllen = 0;
m = control;
ctlbuf = msg->msg_control;
while (m && len > 0) {
cm = mtod(m, struct cmsghdr *);
clen = m->m_len;
while (cm != NULL) {
if (sizeof(struct cmsghdr) > clen ||
cm->cmsg_len > clen) {
error = EINVAL;
break;
}
data = CMSG_DATA(cm);
datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
datalen_out = freebsd32_cmsg_convert(cm, data, datalen);
/* Adjust message length */
cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
datalen_out;
/* Copy cmsghdr */
copylen = sizeof(struct cmsghdr);
if (len < copylen) {
msg->msg_flags |= MSG_CTRUNC;
copylen = len;
}
error = copyout(cm, ctlbuf, copylen);
if (error)
goto exit;
ctlbuf += FREEBSD32_ALIGN(copylen);
len -= FREEBSD32_ALIGN(copylen);
if (len <= 0)
break;
/* Copy data */
copylen = datalen_out;
if (len < copylen) {
msg->msg_flags |= MSG_CTRUNC;
copylen = len;
}
error = copyout(data, ctlbuf, copylen);
if (error)
goto exit;
ctlbuf += FREEBSD32_ALIGN(copylen);
len -= FREEBSD32_ALIGN(copylen);
if (CMSG_SPACE(datalen) < clen) {
clen -= CMSG_SPACE(datalen);
cm = (struct cmsghdr *)
((caddr_t)cm + CMSG_SPACE(datalen));
} else {
clen = 0;
cm = NULL;
}
}
m = m->m_next;
}
msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control;
exit:
return (error);
}
int
freebsd32_recvmsg(td, uap)
struct thread *td;
struct freebsd32_recvmsg_args /* {
int s;
struct msghdr32 *msg;
int flags;
} */ *uap;
{
struct msghdr msg;
struct msghdr32 m32;
struct iovec *uiov, *iov;
struct mbuf *control = NULL;
struct mbuf **controlp;
int error;
error = copyin(uap->msg, &m32, sizeof(m32));
if (error)
return (error);
error = freebsd32_copyinmsghdr(uap->msg, &msg);
if (error)
return (error);
error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
EMSGSIZE);
if (error)
return (error);
msg.msg_flags = uap->flags;
uiov = msg.msg_iov;
msg.msg_iov = iov;
controlp = (msg.msg_control != NULL) ? &control : NULL;
error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
if (error == 0) {
msg.msg_iov = uiov;
if (control != NULL)
error = freebsd32_copy_msg_out(&msg, control);
else
msg.msg_controllen = 0;
if (error == 0)
error = freebsd32_copyoutmsghdr(&msg, uap->msg);
}
free(iov, M_IOV);
if (control != NULL)
m_freem(control);
return (error);
}
/*
* Copy-in the array of control messages constructed using alignment
* and padding suitable for a 32-bit environment and construct an
* mbuf using alignment and padding suitable for a 64-bit kernel.
* The alignment and padding are defined indirectly by CMSG_DATA(),
* CMSG_SPACE() and CMSG_LEN().
*/
static int
freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen)
{
struct mbuf *m;
void *md;
u_int idx, len, msglen;
int error;
buflen = FREEBSD32_ALIGN(buflen);
if (buflen > MCLBYTES)
return (EINVAL);
/*
* Iterate over the buffer and get the length of each message
* in there. This has 32-bit alignment and padding. Use it to
* determine the length of these messages when using 64-bit
* alignment and padding.
*/
idx = 0;
len = 0;
while (idx < buflen) {
error = copyin(buf + idx, &msglen, sizeof(msglen));
if (error)
return (error);
if (msglen < sizeof(struct cmsghdr))
return (EINVAL);
msglen = FREEBSD32_ALIGN(msglen);
if (idx + msglen > buflen)
return (EINVAL);
idx += msglen;
msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) -
FREEBSD32_ALIGN(sizeof(struct cmsghdr));
len += CMSG_ALIGN(msglen);
}
if (len > MCLBYTES)
return (EINVAL);
m = m_get(M_WAITOK, MT_CONTROL);
if (len > MLEN)
MCLGET(m, M_WAITOK);
m->m_len = len;
md = mtod(m, void *);
while (buflen > 0) {
error = copyin(buf, md, sizeof(struct cmsghdr));
if (error)
break;
msglen = *(u_int *)md;
msglen = FREEBSD32_ALIGN(msglen);
/* Modify the message length to account for alignment. */
*(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) -
FREEBSD32_ALIGN(sizeof(struct cmsghdr));
md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr));
buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr));
buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr));
msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr));
if (msglen > 0) {
error = copyin(buf, md, msglen);
if (error)
break;
md = (char *)md + CMSG_ALIGN(msglen);
buf += msglen;
buflen -= msglen;
}
}
if (error)
m_free(m);
else
*mp = m;
return (error);
}
int
freebsd32_sendmsg(struct thread *td,
struct freebsd32_sendmsg_args *uap)
{
struct msghdr msg;
struct msghdr32 m32;
struct iovec *iov;
struct mbuf *control = NULL;
struct sockaddr *to = NULL;
int error;
error = copyin(uap->msg, &m32, sizeof(m32));
if (error)
return (error);
error = freebsd32_copyinmsghdr(uap->msg, &msg);
if (error)
return (error);
error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
EMSGSIZE);
if (error)
return (error);
msg.msg_iov = iov;
if (msg.msg_name != NULL) {
error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
if (error) {
to = NULL;
goto out;
}
msg.msg_name = to;
}
if (msg.msg_control) {
if (msg.msg_controllen < sizeof(struct cmsghdr)) {
error = EINVAL;
goto out;
}
error = freebsd32_copyin_control(&control, msg.msg_control,
msg.msg_controllen);
if (error)
goto out;
msg.msg_control = NULL;
msg.msg_controllen = 0;
}
error = kern_sendit(td, uap->s, &msg, uap->flags, control,
UIO_USERSPACE);
out:
free(iov, M_IOV);
if (to)
free(to, M_SONAME);
return (error);
}
int
freebsd32_recvfrom(struct thread *td,
struct freebsd32_recvfrom_args *uap)
{
struct msghdr msg;
struct iovec aiov;
int error;
if (uap->fromlenaddr) {
error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen,
sizeof(msg.msg_namelen));
if (error)
return (error);
} else {
msg.msg_namelen = 0;
}
msg.msg_name = PTRIN(uap->from);
msg.msg_iov = &aiov;
msg.msg_iovlen = 1;
aiov.iov_base = PTRIN(uap->buf);
aiov.iov_len = uap->len;
msg.msg_control = NULL;
msg.msg_flags = uap->flags;
error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL);
if (error == 0 && uap->fromlenaddr)
error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr),
sizeof (msg.msg_namelen));
return (error);
}
int
freebsd32_settimeofday(struct thread *td,
struct freebsd32_settimeofday_args *uap)
{
struct timeval32 tv32;
struct timeval tv, *tvp;
struct timezone tz, *tzp;
int error;
if (uap->tv) {
error = copyin(uap->tv, &tv32, sizeof(tv32));
if (error)
return (error);
CP(tv32, tv, tv_sec);
CP(tv32, tv, tv_usec);
tvp = &tv;
} else
tvp = NULL;
if (uap->tzp) {
error = copyin(uap->tzp, &tz, sizeof(tz));
if (error)
return (error);
tzp = &tz;
} else
tzp = NULL;
return (kern_settimeofday(td, tvp, tzp));
}
int
freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
{
struct timeval32 s32[2];
struct timeval s[2], *sp;
int error;
if (uap->tptr != NULL) {
error = copyin(uap->tptr, s32, sizeof(s32));
if (error)
return (error);
CP(s32[0], s[0], tv_sec);
CP(s32[0], s[0], tv_usec);
CP(s32[1], s[1], tv_sec);
CP(s32[1], s[1], tv_usec);
sp = s;
} else
sp = NULL;
return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE,
sp, UIO_SYSSPACE));
}
int
freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
{
struct timeval32 s32[2];
struct timeval s[2], *sp;
int error;
if (uap->tptr != NULL) {
error = copyin(uap->tptr, s32, sizeof(s32));
if (error)
return (error);
CP(s32[0], s[0], tv_sec);
CP(s32[0], s[0], tv_usec);
CP(s32[1], s[1], tv_sec);
CP(s32[1], s[1], tv_usec);
sp = s;
} else
sp = NULL;
return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
}
int
freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
{
struct timeval32 s32[2];
struct timeval s[2], *sp;
int error;
if (uap->tptr != NULL) {
error = copyin(uap->tptr, s32, sizeof(s32));
if (error)
return (error);
CP(s32[0], s[0], tv_sec);
CP(s32[0], s[0], tv_usec);
CP(s32[1], s[1], tv_sec);
CP(s32[1], s[1], tv_usec);
sp = s;
} else
sp = NULL;
return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
}
int
freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
{
struct timeval32 s32[2];
struct timeval s[2], *sp;
int error;
if (uap->times != NULL) {
error = copyin(uap->times, s32, sizeof(s32));
if (error)
return (error);
CP(s32[0], s[0], tv_sec);
CP(s32[0], s[0], tv_usec);
CP(s32[1], s[1], tv_sec);
CP(s32[1], s[1], tv_usec);
sp = s;
} else
sp = NULL;
return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
sp, UIO_SYSSPACE));
}
int
freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap)
{
struct timespec32 ts32[2];
struct timespec ts[2], *tsp;
int error;
if (uap->times != NULL) {
error = copyin(uap->times, ts32, sizeof(ts32));
if (error)
return (error);
CP(ts32[0], ts[0], tv_sec);
CP(ts32[0], ts[0], tv_nsec);
CP(ts32[1], ts[1], tv_sec);
CP(ts32[1], ts[1], tv_nsec);
tsp = ts;
} else
tsp = NULL;
return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE));
}
int
freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap)
{
struct timespec32 ts32[2];
struct timespec ts[2], *tsp;
int error;
if (uap->times != NULL) {
error = copyin(uap->times, ts32, sizeof(ts32));
if (error)
return (error);
CP(ts32[0], ts[0], tv_sec);
CP(ts32[0], ts[0], tv_nsec);
CP(ts32[1], ts[1], tv_sec);
CP(ts32[1], ts[1], tv_nsec);
tsp = ts;
} else
tsp = NULL;
return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,
tsp, UIO_SYSSPACE, uap->flag));
}
int
freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
{
struct timeval32 tv32;
struct timeval delta, olddelta, *deltap;
int error;
if (uap->delta) {
error = copyin(uap->delta, &tv32, sizeof(tv32));
if (error)
return (error);
CP(tv32, delta, tv_sec);
CP(tv32, delta, tv_usec);
deltap = &delta;
} else
deltap = NULL;
error = kern_adjtime(td, deltap, &olddelta);
if (uap->olddelta && error == 0) {
CP(olddelta, tv32, tv_sec);
CP(olddelta, tv32, tv_usec);
error = copyout(&tv32, uap->olddelta, sizeof(tv32));
}
return (error);
}
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
{
struct statfs32 s32;
struct statfs *sp;
int error;
sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
error = kern_statfs(td, uap->path, UIO_USERSPACE, sp);
if (error == 0) {
copy_statfs(sp, &s32);
error = copyout(&s32, uap->buf, sizeof(s32));
}
free(sp, M_STATFS);
return (error);
}
#endif
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
{
struct statfs32 s32;
struct statfs *sp;
int error;
sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
error = kern_fstatfs(td, uap->fd, sp);
if (error == 0) {
copy_statfs(sp, &s32);
error = copyout(&s32, uap->buf, sizeof(s32));
}
free(sp, M_STATFS);
return (error);
}
#endif
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
{
struct statfs32 s32;
struct statfs *sp;
fhandle_t fh;
int error;
if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
return (error);
sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
error = kern_fhstatfs(td, fh, sp);
if (error == 0) {
copy_statfs(sp, &s32);
error = copyout(&s32, uap->buf, sizeof(s32));
}
free(sp, M_STATFS);
return (error);
}
#endif
int
freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
{
return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
PAIR32TO64(off_t, uap->offset)));
}
int
freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
{
return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
PAIR32TO64(off_t, uap->offset)));
}
#ifdef COMPAT_43
int
ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
{
return (kern_lseek(td, uap->fd, uap->offset, uap->whence));
}
#endif
int
freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
{
int error;
off_t pos;
error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
uap->whence);
/* Expand the quad return into two parts for eax and edx */
pos = td->td_uretoff.tdu_off;
td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
return error;
}
int
freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
{
return (kern_truncate(td, uap->path, UIO_USERSPACE,
PAIR32TO64(off_t, uap->length)));
}
int
freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
{
return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
}
#ifdef COMPAT_43
int
ofreebsd32_getdirentries(struct thread *td,
struct ofreebsd32_getdirentries_args *uap)
{
struct ogetdirentries_args ap;
int error;
long loff;
int32_t loff_cut;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.count = uap->count;
ap.basep = NULL;
error = kern_ogetdirentries(td, &ap, &loff);
if (error == 0) {
loff_cut = loff;
error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
}
return (error);
}
#endif
#if defined(COMPAT_FREEBSD11)
int
freebsd11_freebsd32_getdirentries(struct thread *td,
struct freebsd11_freebsd32_getdirentries_args *uap)
{
long base;
int32_t base32;
int error;
error = freebsd11_kern_getdirentries(td, uap->fd, uap->buf, uap->count,
&base, NULL);
if (error)
return (error);
if (uap->basep != NULL) {
base32 = base;
error = copyout(&base32, uap->basep, sizeof(int32_t));
}
return (error);
}
int
freebsd11_freebsd32_getdents(struct thread *td,
struct freebsd11_freebsd32_getdents_args *uap)
{
struct freebsd11_freebsd32_getdirentries_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.count = uap->count;
ap.basep = NULL;
return (freebsd11_freebsd32_getdirentries(td, &ap));
}
#endif /* COMPAT_FREEBSD11 */
#ifdef COMPAT_FREEBSD6
/* versions with the 'int pad' argument */
int
freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
{
return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
PAIR32TO64(off_t, uap->offset)));
}
int
freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
{
return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
PAIR32TO64(off_t, uap->offset)));
}
int
freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
{
int error;
off_t pos;
error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
uap->whence);
/* Expand the quad return into two parts for eax and edx */
pos = *(off_t *)(td->td_retval);
td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
return error;
}
int
freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
{
return (kern_truncate(td, uap->path, UIO_USERSPACE,
PAIR32TO64(off_t, uap->length)));
}
int
freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
{
return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
}
#endif /* COMPAT_FREEBSD6 */
struct sf_hdtr32 {
uint32_t headers;
int hdr_cnt;
uint32_t trailers;
int trl_cnt;
};
static int
freebsd32_do_sendfile(struct thread *td,
struct freebsd32_sendfile_args *uap, int compat)
{
struct sf_hdtr32 hdtr32;
struct sf_hdtr hdtr;
struct uio *hdr_uio, *trl_uio;
struct file *fp;
cap_rights_t rights;
struct iovec32 *iov32;
off_t offset, sbytes;
int error;
offset = PAIR32TO64(off_t, uap->offset);
if (offset < 0)
return (EINVAL);
hdr_uio = trl_uio = NULL;
if (uap->hdtr != NULL) {
error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
if (error)
goto out;
PTRIN_CP(hdtr32, hdtr, headers);
CP(hdtr32, hdtr, hdr_cnt);
PTRIN_CP(hdtr32, hdtr, trailers);
CP(hdtr32, hdtr, trl_cnt);
if (hdtr.headers != NULL) {
iov32 = PTRIN(hdtr32.headers);
error = freebsd32_copyinuio(iov32,
hdtr32.hdr_cnt, &hdr_uio);
if (error)
goto out;
#ifdef COMPAT_FREEBSD4
/*
* In FreeBSD < 5.0 the nbytes to send also included
* the header. If compat is specified subtract the
* header size from nbytes.
*/
if (compat) {
if (uap->nbytes > hdr_uio->uio_resid)
uap->nbytes -= hdr_uio->uio_resid;
else
uap->nbytes = 0;
}
#endif
}
if (hdtr.trailers != NULL) {
iov32 = PTRIN(hdtr32.trailers);
error = freebsd32_copyinuio(iov32,
hdtr32.trl_cnt, &trl_uio);
if (error)
goto out;
}
}
AUDIT_ARG_FD(uap->fd);
if ((error = fget_read(td, uap->fd,
cap_rights_init(&rights, CAP_PREAD), &fp)) != 0)
goto out;
error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset,
uap->nbytes, &sbytes, uap->flags, td);
fdrop(fp, td);
if (uap->sbytes != NULL)
copyout(&sbytes, uap->sbytes, sizeof(off_t));
out:
if (hdr_uio)
free(hdr_uio, M_IOV);
if (trl_uio)
free(trl_uio, M_IOV);
return (error);
}
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_sendfile(struct thread *td,
struct freebsd4_freebsd32_sendfile_args *uap)
{
return (freebsd32_do_sendfile(td,
(struct freebsd32_sendfile_args *)uap, 1));
}
#endif
int
freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
{
return (freebsd32_do_sendfile(td, uap, 0));
}
static void
copy_stat(struct stat *in, struct stat32 *out)
{
CP(*in, *out, st_dev);
CP(*in, *out, st_ino);
CP(*in, *out, st_mode);
CP(*in, *out, st_nlink);
CP(*in, *out, st_uid);
CP(*in, *out, st_gid);
CP(*in, *out, st_rdev);
TS_CP(*in, *out, st_atim);
TS_CP(*in, *out, st_mtim);
TS_CP(*in, *out, st_ctim);
CP(*in, *out, st_size);
CP(*in, *out, st_blocks);
CP(*in, *out, st_blksize);
CP(*in, *out, st_flags);
CP(*in, *out, st_gen);
TS_CP(*in, *out, st_birthtim);
out->st_padding0 = 0;
out->st_padding1 = 0;
#ifdef __STAT32_TIME_T_EXT
out->st_atim_ext = 0;
out->st_mtim_ext = 0;
out->st_ctim_ext = 0;
out->st_btim_ext = 0;
#endif
bzero(out->st_spare, sizeof(out->st_spare));
}
#ifdef COMPAT_43
static void
copy_ostat(struct stat *in, struct ostat32 *out)
{
bzero(out, sizeof(*out));
CP(*in, *out, st_dev);
CP(*in, *out, st_ino);
CP(*in, *out, st_mode);
CP(*in, *out, st_nlink);
CP(*in, *out, st_uid);
CP(*in, *out, st_gid);
CP(*in, *out, st_rdev);
out->st_size = MIN(in->st_size, INT32_MAX);
TS_CP(*in, *out, st_atim);
TS_CP(*in, *out, st_mtim);
TS_CP(*in, *out, st_ctim);
CP(*in, *out, st_blksize);
CP(*in, *out, st_blocks);
CP(*in, *out, st_flags);
CP(*in, *out, st_gen);
}
#endif
#ifdef COMPAT_43
int
ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
{
struct stat sb;
struct ostat32 sb32;
int error;
error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE,
&sb, NULL);
if (error)
return (error);
copy_ostat(&sb, &sb32);
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
#endif
int
freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
{
struct stat ub;
struct stat32 ub32;
int error;
error = kern_fstat(td, uap->fd, &ub);
if (error)
return (error);
copy_stat(&ub, &ub32);
error = copyout(&ub32, uap->ub, sizeof(ub32));
return (error);
}
#ifdef COMPAT_43
int
ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
{
struct stat ub;
struct ostat32 ub32;
int error;
error = kern_fstat(td, uap->fd, &ub);
if (error)
return (error);
copy_ostat(&ub, &ub32);
error = copyout(&ub32, uap->ub, sizeof(ub32));
return (error);
}
#endif
int
freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
{
struct stat ub;
struct stat32 ub32;
int error;
error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
&ub, NULL);
if (error)
return (error);
copy_stat(&ub, &ub32);
error = copyout(&ub32, uap->buf, sizeof(ub32));
return (error);
}
#ifdef COMPAT_43
int
ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
{
struct stat sb;
struct ostat32 sb32;
int error;
error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
UIO_USERSPACE, &sb, NULL);
if (error)
return (error);
copy_ostat(&sb, &sb32);
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
#endif
int
freebsd32_fhstat(struct thread *td, struct freebsd32_fhstat_args *uap)
{
struct stat sb;
struct stat32 sb32;
struct fhandle fh;
int error;
error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
if (error != 0)
return (error);
error = kern_fhstat(td, fh, &sb);
if (error != 0)
return (error);
copy_stat(&sb, &sb32);
error = copyout(&sb32, uap->sb, sizeof (sb32));
return (error);
}
#if defined(COMPAT_FREEBSD11)
extern int ino64_trunc_error;
static int
freebsd11_cvtstat32(struct stat *in, struct freebsd11_stat32 *out)
{
CP(*in, *out, st_ino);
if (in->st_ino != out->st_ino) {
switch (ino64_trunc_error) {
default:
case 0:
break;
case 1:
return (EOVERFLOW);
case 2:
out->st_ino = UINT32_MAX;
break;
}
}
CP(*in, *out, st_nlink);
if (in->st_nlink != out->st_nlink) {
switch (ino64_trunc_error) {
default:
case 0:
break;
case 1:
return (EOVERFLOW);
case 2:
out->st_nlink = UINT16_MAX;
break;
}
}
out->st_dev = in->st_dev;
if (out->st_dev != in->st_dev) {
switch (ino64_trunc_error) {
default:
break;
case 1:
return (EOVERFLOW);
}
}
CP(*in, *out, st_mode);
CP(*in, *out, st_uid);
CP(*in, *out, st_gid);
out->st_rdev = in->st_rdev;
if (out->st_rdev != in->st_rdev) {
switch (ino64_trunc_error) {
default:
break;
case 1:
return (EOVERFLOW);
}
}
TS_CP(*in, *out, st_atim);
TS_CP(*in, *out, st_mtim);
TS_CP(*in, *out, st_ctim);
CP(*in, *out, st_size);
CP(*in, *out, st_blocks);
CP(*in, *out, st_blksize);
CP(*in, *out, st_flags);
CP(*in, *out, st_gen);
TS_CP(*in, *out, st_birthtim);
out->st_lspare = 0;
bzero((char *)&out->st_birthtim + sizeof(out->st_birthtim),
sizeof(*out) - offsetof(struct freebsd11_stat32,
st_birthtim) - sizeof(out->st_birthtim));
return (0);
}
int
freebsd11_freebsd32_stat(struct thread *td,
struct freebsd11_freebsd32_stat_args *uap)
{
struct stat sb;
struct freebsd11_stat32 sb32;
int error;
error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE,
&sb, NULL);
if (error != 0)
return (error);
error = freebsd11_cvtstat32(&sb, &sb32);
if (error == 0)
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
int
freebsd11_freebsd32_fstat(struct thread *td,
struct freebsd11_freebsd32_fstat_args *uap)
{
struct stat sb;
struct freebsd11_stat32 sb32;
int error;
error = kern_fstat(td, uap->fd, &sb);
if (error != 0)
return (error);
error = freebsd11_cvtstat32(&sb, &sb32);
if (error == 0)
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
int
freebsd11_freebsd32_fstatat(struct thread *td,
struct freebsd11_freebsd32_fstatat_args *uap)
{
struct stat sb;
struct freebsd11_stat32 sb32;
int error;
error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
&sb, NULL);
if (error != 0)
return (error);
error = freebsd11_cvtstat32(&sb, &sb32);
if (error == 0)
error = copyout(&sb32, uap->buf, sizeof (sb32));
return (error);
}
int
freebsd11_freebsd32_lstat(struct thread *td,
struct freebsd11_freebsd32_lstat_args *uap)
{
struct stat sb;
struct freebsd11_stat32 sb32;
int error;
error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
UIO_USERSPACE, &sb, NULL);
if (error != 0)
return (error);
error = freebsd11_cvtstat32(&sb, &sb32);
if (error == 0)
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
int
freebsd11_freebsd32_fhstat(struct thread *td,
struct freebsd11_freebsd32_fhstat_args *uap)
{
struct stat sb;
struct freebsd11_stat32 sb32;
struct fhandle fh;
int error;
error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
if (error != 0)
return (error);
error = kern_fhstat(td, fh, &sb);
if (error != 0)
return (error);
error = freebsd11_cvtstat32(&sb, &sb32);
if (error == 0)
error = copyout(&sb32, uap->sb, sizeof (sb32));
return (error);
}
#endif
int
freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap)
{
int error, name[CTL_MAXNAME];
size_t j, oldlen;
uint32_t tmp;
if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
return (EINVAL);
error = copyin(uap->name, name, uap->namelen * sizeof(int));
if (error)
return (error);
if (uap->oldlenp) {
error = fueword32(uap->oldlenp, &tmp);
oldlen = tmp;
} else {
oldlen = 0;
}
if (error != 0)
return (EFAULT);
error = userland_sysctl(td, name, uap->namelen,
uap->old, &oldlen, 1,
uap->new, uap->newlen, &j, SCTL_MASK32);
if (error)
return (error);
if (uap->oldlenp)
suword32(uap->oldlenp, j);
return (0);
}
int
freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
{
uint32_t version;
int error;
struct jail j;
error = copyin(uap->jail, &version, sizeof(uint32_t));
if (error)
return (error);
switch (version) {
case 0:
{
/* FreeBSD single IPv4 jails. */
struct jail32_v0 j32_v0;
bzero(&j, sizeof(struct jail));
error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
if (error)
return (error);
CP(j32_v0, j, version);
PTRIN_CP(j32_v0, j, path);
PTRIN_CP(j32_v0, j, hostname);
j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */
break;
}
case 1:
/*
* Version 1 was used by multi-IPv4 jail implementations
* that never made it into the official kernel.
*/
return (EINVAL);
case 2: /* JAIL_API_VERSION */
{
/* FreeBSD multi-IPv4/IPv6,noIP jails. */
struct jail32 j32;
error = copyin(uap->jail, &j32, sizeof(struct jail32));
if (error)
return (error);
CP(j32, j, version);
PTRIN_CP(j32, j, path);
PTRIN_CP(j32, j, hostname);
PTRIN_CP(j32, j, jailname);
CP(j32, j, ip4s);
CP(j32, j, ip6s);
PTRIN_CP(j32, j, ip4);
PTRIN_CP(j32, j, ip6);
break;
}
default:
/* Sci-Fi jails are not supported, sorry. */
return (EINVAL);
}
return (kern_jail(td, &j));
}
int
freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
{
struct uio *auio;
int error;
/* Check that we have an even number of iovecs. */
if (uap->iovcnt & 1)
return (EINVAL);
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_jail_set(td, auio, uap->flags);
free(auio, M_IOV);
return (error);
}
int
freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
{
struct iovec32 iov32;
struct uio *auio;
int error, i;
/* Check that we have an even number of iovecs. */
if (uap->iovcnt & 1)
return (EINVAL);
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_jail_get(td, auio, uap->flags);
if (error == 0)
for (i = 0; i < uap->iovcnt; i++) {
PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
CP(auio->uio_iov[i], iov32, iov_len);
error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
if (error != 0)
break;
}
free(auio, M_IOV);
return (error);
}
int
freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
{
struct sigaction32 s32;
struct sigaction sa, osa, *sap;
int error;
if (uap->act) {
error = copyin(uap->act, &s32, sizeof(s32));
if (error)
return (error);
sa.sa_handler = PTRIN(s32.sa_u);
CP(s32, sa, sa_flags);
CP(s32, sa, sa_mask);
sap = &sa;
} else
sap = NULL;
error = kern_sigaction(td, uap->sig, sap, &osa, 0);
if (error == 0 && uap->oact != NULL) {
s32.sa_u = PTROUT(osa.sa_handler);
CP(osa, s32, sa_flags);
CP(osa, s32, sa_mask);
error = copyout(&s32, uap->oact, sizeof(s32));
}
return (error);
}
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_sigaction(struct thread *td,
struct freebsd4_freebsd32_sigaction_args *uap)
{
struct sigaction32 s32;
struct sigaction sa, osa, *sap;
int error;
if (uap->act) {
error = copyin(uap->act, &s32, sizeof(s32));
if (error)
return (error);
sa.sa_handler = PTRIN(s32.sa_u);
CP(s32, sa, sa_flags);
CP(s32, sa, sa_mask);
sap = &sa;
} else
sap = NULL;
error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
if (error == 0 && uap->oact != NULL) {
s32.sa_u = PTROUT(osa.sa_handler);
CP(osa, s32, sa_flags);
CP(osa, s32, sa_mask);
error = copyout(&s32, uap->oact, sizeof(s32));
}
return (error);
}
#endif
#ifdef COMPAT_43
struct osigaction32 {
u_int32_t sa_u;
osigset_t sa_mask;
int sa_flags;
};
#define ONSIG 32
int
ofreebsd32_sigaction(struct thread *td,
struct ofreebsd32_sigaction_args *uap)
{
struct osigaction32 s32;
struct sigaction sa, osa, *sap;
int error;
if (uap->signum <= 0 || uap->signum >= ONSIG)
return (EINVAL);
if (uap->nsa) {
error = copyin(uap->nsa, &s32, sizeof(s32));
if (error)
return (error);
sa.sa_handler = PTRIN(s32.sa_u);
CP(s32, sa, sa_flags);
OSIG2SIG(s32.sa_mask, sa.sa_mask);
sap = &sa;
} else
sap = NULL;
error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
if (error == 0 && uap->osa != NULL) {
s32.sa_u = PTROUT(osa.sa_handler);
CP(osa, s32, sa_flags);
SIG2OSIG(osa.sa_mask, s32.sa_mask);
error = copyout(&s32, uap->osa, sizeof(s32));
}
return (error);
}
int
ofreebsd32_sigprocmask(struct thread *td,
struct ofreebsd32_sigprocmask_args *uap)
{
sigset_t set, oset;
int error;
OSIG2SIG(uap->mask, set);
error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD);
SIG2OSIG(oset, td->td_retval[0]);
return (error);
}
int
ofreebsd32_sigpending(struct thread *td,
struct ofreebsd32_sigpending_args *uap)
{
struct proc *p = td->td_proc;
sigset_t siglist;
PROC_LOCK(p);
siglist = p->p_siglist;
SIGSETOR(siglist, td->td_siglist);
PROC_UNLOCK(p);
SIG2OSIG(siglist, td->td_retval[0]);
return (0);
}
struct sigvec32 {
u_int32_t sv_handler;
int sv_mask;
int sv_flags;
};
int
ofreebsd32_sigvec(struct thread *td,
struct ofreebsd32_sigvec_args *uap)
{
struct sigvec32 vec;
struct sigaction sa, osa, *sap;
int error;
if (uap->signum <= 0 || uap->signum >= ONSIG)
return (EINVAL);
if (uap->nsv) {
error = copyin(uap->nsv, &vec, sizeof(vec));
if (error)
return (error);
sa.sa_handler = PTRIN(vec.sv_handler);
OSIG2SIG(vec.sv_mask, sa.sa_mask);
sa.sa_flags = vec.sv_flags;
sa.sa_flags ^= SA_RESTART;
sap = &sa;
} else
sap = NULL;
error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
if (error == 0 && uap->osv != NULL) {
vec.sv_handler = PTROUT(osa.sa_handler);
SIG2OSIG(osa.sa_mask, vec.sv_mask);
vec.sv_flags = osa.sa_flags;
vec.sv_flags &= ~SA_NOCLDWAIT;
vec.sv_flags ^= SA_RESTART;
error = copyout(&vec, uap->osv, sizeof(vec));
}
return (error);
}
int
ofreebsd32_sigblock(struct thread *td,
struct ofreebsd32_sigblock_args *uap)
{
sigset_t set, oset;
OSIG2SIG(uap->mask, set);
kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0);
SIG2OSIG(oset, td->td_retval[0]);
return (0);
}
int
ofreebsd32_sigsetmask(struct thread *td,
struct ofreebsd32_sigsetmask_args *uap)
{
sigset_t set, oset;
OSIG2SIG(uap->mask, set);
kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0);
SIG2OSIG(oset, td->td_retval[0]);
return (0);
}
int
ofreebsd32_sigsuspend(struct thread *td,
struct ofreebsd32_sigsuspend_args *uap)
{
sigset_t mask;
OSIG2SIG(uap->mask, mask);
return (kern_sigsuspend(td, mask));
}
struct sigstack32 {
u_int32_t ss_sp;
int ss_onstack;
};
int
ofreebsd32_sigstack(struct thread *td,
struct ofreebsd32_sigstack_args *uap)
{
struct sigstack32 s32;
struct sigstack nss, oss;
int error = 0, unss;
if (uap->nss != NULL) {
error = copyin(uap->nss, &s32, sizeof(s32));
if (error)
return (error);
nss.ss_sp = PTRIN(s32.ss_sp);
CP(s32, nss, ss_onstack);
unss = 1;
} else {
unss = 0;
}
oss.ss_sp = td->td_sigstk.ss_sp;
oss.ss_onstack = sigonstack(cpu_getstack(td));
if (unss) {
td->td_sigstk.ss_sp = nss.ss_sp;
td->td_sigstk.ss_size = 0;
td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
td->td_pflags |= TDP_ALTSTACK;
}
if (uap->oss != NULL) {
s32.ss_sp = PTROUT(oss.ss_sp);
CP(oss, s32, ss_onstack);
error = copyout(&s32, uap->oss, sizeof(s32));
}
return (error);
}
#endif
int
freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
{
return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME,
TIMER_RELTIME, uap->rqtp, uap->rmtp));
}
int
freebsd32_clock_nanosleep(struct thread *td,
struct freebsd32_clock_nanosleep_args *uap)
{
int error;
error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags,
uap->rqtp, uap->rmtp);
return (kern_posix_error(td, error));
}
static int
freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp)
{
struct timespec32 rmt32, rqt32;
struct timespec rmt, rqt;
int error;
error = copyin(ua_rqtp, &rqt32, sizeof(rqt32));
if (error)
return (error);
CP(rqt32, rqt, tv_sec);
CP(rqt32, rqt, tv_nsec);
if (ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0 &&
!useracc(ua_rmtp, sizeof(rmt32), VM_PROT_WRITE))
return (EFAULT);
error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) {
int error2;
CP(rmt, rmt32, tv_sec);
CP(rmt, rmt32, tv_nsec);
error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32));
if (error2)
error = error2;
}
return (error);
}
int
freebsd32_clock_gettime(struct thread *td,
struct freebsd32_clock_gettime_args *uap)
{
struct timespec ats;
struct timespec32 ats32;
int error;
error = kern_clock_gettime(td, uap->clock_id, &ats);
if (error == 0) {
CP(ats, ats32, tv_sec);
CP(ats, ats32, tv_nsec);
error = copyout(&ats32, uap->tp, sizeof(ats32));
}
return (error);
}
int
freebsd32_clock_settime(struct thread *td,
struct freebsd32_clock_settime_args *uap)
{
struct timespec ats;
struct timespec32 ats32;
int error;
error = copyin(uap->tp, &ats32, sizeof(ats32));
if (error)
return (error);
CP(ats32, ats, tv_sec);
CP(ats32, ats, tv_nsec);
return (kern_clock_settime(td, uap->clock_id, &ats));
}
int
freebsd32_clock_getres(struct thread *td,
struct freebsd32_clock_getres_args *uap)
{
struct timespec ts;
struct timespec32 ts32;
int error;
if (uap->tp == NULL)
return (0);
error = kern_clock_getres(td, uap->clock_id, &ts);
if (error == 0) {
CP(ts, ts32, tv_sec);
CP(ts, ts32, tv_nsec);
error = copyout(&ts32, uap->tp, sizeof(ts32));
}
return (error);
}
int freebsd32_ktimer_create(struct thread *td,
struct freebsd32_ktimer_create_args *uap)
{
struct sigevent32 ev32;
struct sigevent ev, *evp;
int error, id;
if (uap->evp == NULL) {
evp = NULL;
} else {
evp = &ev;
error = copyin(uap->evp, &ev32, sizeof(ev32));
if (error != 0)
return (error);
error = convert_sigevent32(&ev32, &ev);
if (error != 0)
return (error);
}
error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1);
if (error == 0) {
error = copyout(&id, uap->timerid, sizeof(int));
if (error != 0)
kern_ktimer_delete(td, id);
}
return (error);
}
int
freebsd32_ktimer_settime(struct thread *td,
struct freebsd32_ktimer_settime_args *uap)
{
struct itimerspec32 val32, oval32;
struct itimerspec val, oval, *ovalp;
int error;
error = copyin(uap->value, &val32, sizeof(val32));
if (error != 0)
return (error);
ITS_CP(val32, val);
ovalp = uap->ovalue != NULL ? &oval : NULL;
error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
if (error == 0 && uap->ovalue != NULL) {
ITS_CP(oval, oval32);
error = copyout(&oval32, uap->ovalue, sizeof(oval32));
}
return (error);
}
int
freebsd32_ktimer_gettime(struct thread *td,
struct freebsd32_ktimer_gettime_args *uap)
{
struct itimerspec32 val32;
struct itimerspec val;
int error;
error = kern_ktimer_gettime(td, uap->timerid, &val);
if (error == 0) {
ITS_CP(val, val32);
error = copyout(&val32, uap->value, sizeof(val32));
}
return (error);
}
int
freebsd32_clock_getcpuclockid2(struct thread *td,
struct freebsd32_clock_getcpuclockid2_args *uap)
{
clockid_t clk_id;
int error;
error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id),
uap->which, &clk_id);
if (error == 0)
error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t));
return (error);
}
int
freebsd32_thr_new(struct thread *td,
struct freebsd32_thr_new_args *uap)
{
struct thr_param32 param32;
struct thr_param param;
int error;
if (uap->param_size < 0 ||
uap->param_size > sizeof(struct thr_param32))
return (EINVAL);
bzero(&param, sizeof(struct thr_param));
bzero(&param32, sizeof(struct thr_param32));
error = copyin(uap->param, &param32, uap->param_size);
if (error != 0)
return (error);
param.start_func = PTRIN(param32.start_func);
param.arg = PTRIN(param32.arg);
param.stack_base = PTRIN(param32.stack_base);
param.stack_size = param32.stack_size;
param.tls_base = PTRIN(param32.tls_base);
param.tls_size = param32.tls_size;
param.child_tid = PTRIN(param32.child_tid);
param.parent_tid = PTRIN(param32.parent_tid);
param.flags = param32.flags;
param.rtp = PTRIN(param32.rtp);
param.spare[0] = PTRIN(param32.spare[0]);
param.spare[1] = PTRIN(param32.spare[1]);
param.spare[2] = PTRIN(param32.spare[2]);
return (kern_thr_new(td, &param));
}
int
freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
{
struct timespec32 ts32;
struct timespec ts, *tsp;
int error;
error = 0;
tsp = NULL;
if (uap->timeout != NULL) {
error = copyin((const void *)uap->timeout, (void *)&ts32,
sizeof(struct timespec32));
if (error != 0)
return (error);
ts.tv_sec = ts32.tv_sec;
ts.tv_nsec = ts32.tv_nsec;
tsp = &ts;
}
return (kern_thr_suspend(td, tsp));
}
void
siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst)
{
bzero(dst, sizeof(*dst));
dst->si_signo = src->si_signo;
dst->si_errno = src->si_errno;
dst->si_code = src->si_code;
dst->si_pid = src->si_pid;
dst->si_uid = src->si_uid;
dst->si_status = src->si_status;
dst->si_addr = (uintptr_t)src->si_addr;
dst->si_value.sival_int = src->si_value.sival_int;
dst->si_timerid = src->si_timerid;
dst->si_overrun = src->si_overrun;
}
#ifndef _FREEBSD32_SYSPROTO_H_
struct freebsd32_sigqueue_args {
pid_t pid;
int signum;
/* union sigval32 */ int value;
};
#endif
int
freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap)
{
union sigval sv;
/*
* On 32-bit ABIs, sival_int and sival_ptr are the same.
* On 64-bit little-endian ABIs, the low bits are the same.
* In 64-bit big-endian ABIs, sival_int overlaps with
* sival_ptr's HIGH bits. We choose to support sival_int
* rather than sival_ptr in this case as it seems to be
* more common.
*/
bzero(&sv, sizeof(sv));
sv.sival_int = uap->value;
return (kern_sigqueue(td, uap->pid, uap->signum, &sv));
}
int
freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
{
struct timespec32 ts32;
struct timespec ts;
struct timespec *timeout;
sigset_t set;
ksiginfo_t ksi;
struct siginfo32 si32;
int error;
if (uap->timeout) {
error = copyin(uap->timeout, &ts32, sizeof(ts32));
if (error)
return (error);
ts.tv_sec = ts32.tv_sec;
ts.tv_nsec = ts32.tv_nsec;
timeout = &ts;
} else
timeout = NULL;
error = copyin(uap->set, &set, sizeof(set));
if (error)
return (error);
error = kern_sigtimedwait(td, set, &ksi, timeout);
if (error)
return (error);
if (uap->info) {
siginfo_to_siginfo32(&ksi.ksi_info, &si32);
error = copyout(&si32, uap->info, sizeof(struct siginfo32));
}
if (error == 0)
td->td_retval[0] = ksi.ksi_signo;
return (error);
}
/*
* MPSAFE
*/
int
freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
{
ksiginfo_t ksi;
struct siginfo32 si32;
sigset_t set;
int error;
error = copyin(uap->set, &set, sizeof(set));
if (error)
return (error);
error = kern_sigtimedwait(td, set, &ksi, NULL);
if (error)
return (error);
if (uap->info) {
siginfo_to_siginfo32(&ksi.ksi_info, &si32);
error = copyout(&si32, uap->info, sizeof(struct siginfo32));
}
if (error == 0)
td->td_retval[0] = ksi.ksi_signo;
return (error);
}
int
freebsd32_cpuset_setid(struct thread *td,
struct freebsd32_cpuset_setid_args *uap)
{
return (kern_cpuset_setid(td, uap->which,
PAIR32TO64(id_t, uap->id), uap->setid));
}
int
freebsd32_cpuset_getid(struct thread *td,
struct freebsd32_cpuset_getid_args *uap)
{
return (kern_cpuset_getid(td, uap->level, uap->which,
PAIR32TO64(id_t, uap->id), uap->setid));
}
int
freebsd32_cpuset_getaffinity(struct thread *td,
struct freebsd32_cpuset_getaffinity_args *uap)
{
return (kern_cpuset_getaffinity(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask));
}
int
freebsd32_cpuset_setaffinity(struct thread *td,
struct freebsd32_cpuset_setaffinity_args *uap)
{
return (kern_cpuset_setaffinity(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask));
}
int
freebsd32_cpuset_getdomain(struct thread *td,
struct freebsd32_cpuset_getdomain_args *uap)
{
return (kern_cpuset_getdomain(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy));
}
int
freebsd32_cpuset_setdomain(struct thread *td,
struct freebsd32_cpuset_setdomain_args *uap)
{
return (kern_cpuset_setdomain(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy));
}
int
freebsd32_nmount(struct thread *td,
struct freebsd32_nmount_args /* {
struct iovec *iovp;
unsigned int iovcnt;
int flags;
} */ *uap)
{
struct uio *auio;
uint64_t flags;
int error;
/*
* Mount flags are now 64-bits. On 32-bit archtectures only
* 32-bits are passed in, but from here on everything handles
* 64-bit flags correctly.
*/
flags = uap->flags;
AUDIT_ARG_FFLAGS(flags);
/*
* Filter out MNT_ROOTFS. We do not want clients of nmount() in
* userspace to set this flag, but we must filter it out if we want
* MNT_UPDATE on the root file system to work.
* MNT_ROOTFS should only be set by the kernel when mounting its
* root file system.
*/
flags &= ~MNT_ROOTFS;
/*
* check that we have an even number of iovec's
* and that we have at least two options.
*/
if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
return (EINVAL);
error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = vfs_donmount(td, flags, auio);
free(auio, M_IOV);
return error;
}
#if 0
int
freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
{
struct yyy32 *p32, s32;
struct yyy *p = NULL, s;
struct xxx_arg ap;
int error;
if (uap->zzz) {
error = copyin(uap->zzz, &s32, sizeof(s32));
if (error)
return (error);
/* translate in */
p = &s;
}
error = kern_xxx(td, p);
if (error)
return (error);
if (uap->zzz) {
/* translate out */
error = copyout(&s32, p32, sizeof(s32));
}
return (error);
}
#endif
int
syscall32_module_handler(struct module *mod, int what, void *arg)
{
return (kern_syscall_module_handler(freebsd32_sysent, mod, what, arg));
}
int
syscall32_helper_register(struct syscall_helper_data *sd, int flags)
{
return (kern_syscall_helper_register(freebsd32_sysent, sd, flags));
}
int
syscall32_helper_unregister(struct syscall_helper_data *sd)
{
return (kern_syscall_helper_unregister(freebsd32_sysent, sd));
}
register_t *
freebsd32_copyout_strings(struct image_params *imgp)
{
int argc, envc, i;
u_int32_t *vectp;
char *stringp;
uintptr_t destp;
u_int32_t *stack_base;
struct freebsd32_ps_strings *arginfo;
char canary[sizeof(long) * 8];
int32_t pagesizes32[MAXPAGESIZES];
size_t execpath_len;
int szsigcode;
/*
* Calculate string base and vector table pointers.
* Also deal with signal trampoline code for this exec type.
*/
if (imgp->execpath != NULL && imgp->auxargs != NULL)
execpath_len = strlen(imgp->execpath) + 1;
else
execpath_len = 0;
arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent->
sv_psstrings;
if (imgp->proc->p_sysent->sv_sigcode_base == 0)
szsigcode = *(imgp->proc->p_sysent->sv_szsigcode);
else
szsigcode = 0;
destp = (uintptr_t)arginfo;
/*
* install sigcode
*/
if (szsigcode != 0) {
destp -= szsigcode;
destp = rounddown2(destp, sizeof(uint32_t));
copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp,
szsigcode);
}
/*
* Copy the image path for the rtld.
*/
if (execpath_len != 0) {
destp -= execpath_len;
imgp->execpathp = destp;
copyout(imgp->execpath, (void *)destp, execpath_len);
}
/*
* Prepare the canary for SSP.
*/
arc4rand(canary, sizeof(canary), 0);
destp -= sizeof(canary);
imgp->canary = destp;
copyout(canary, (void *)destp, sizeof(canary));
imgp->canarylen = sizeof(canary);
/*
* Prepare the pagesizes array.
*/
for (i = 0; i < MAXPAGESIZES; i++)
pagesizes32[i] = (uint32_t)pagesizes[i];
destp -= sizeof(pagesizes32);
destp = rounddown2(destp, sizeof(uint32_t));
imgp->pagesizes = destp;
copyout(pagesizes32, (void *)destp, sizeof(pagesizes32));
imgp->pagesizeslen = sizeof(pagesizes32);
destp -= ARG_MAX - imgp->args->stringspace;
destp = rounddown2(destp, sizeof(uint32_t));
vectp = (uint32_t *)destp;
if (imgp->auxargs) {
/*
* Allocate room on the stack for the ELF auxargs
* array. It has up to AT_COUNT entries.
*/
vectp -= howmany(AT_COUNT * sizeof(Elf32_Auxinfo),
sizeof(*vectp));
}
/*
* Allocate room for the argv[] and env vectors including the
* terminating NULL pointers.
*/
vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
/*
* vectp also becomes our initial stack base
*/
stack_base = vectp;
stringp = imgp->args->begin_argv;
argc = imgp->args->argc;
envc = imgp->args->envc;
/*
* Copy out strings - arguments and environment.
*/
copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace);
/*
* Fill in "ps_strings" struct for ps, w, etc.
*/
suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp);
suword32(&arginfo->ps_nargvstr, argc);
/*
* Fill in argument portion of vector table.
*/
for (; argc > 0; --argc) {
suword32(vectp++, (u_int32_t)(intptr_t)destp);
while (*stringp++ != 0)
destp++;
destp++;
}
/* a null vector table pointer separates the argp's from the envp's */
suword32(vectp++, 0);
suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp);
suword32(&arginfo->ps_nenvstr, envc);
/*
* Fill in environment portion of vector table.
*/
for (; envc > 0; --envc) {
suword32(vectp++, (u_int32_t)(intptr_t)destp);
while (*stringp++ != 0)
destp++;
destp++;
}
/* end of vector table is a null pointer */
suword32(vectp, 0);
return ((register_t *)stack_base);
}
int
freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
{
struct kld_file_stat *stat;
struct kld32_file_stat *stat32;
int error, version;
if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
!= 0)
return (error);
if (version != sizeof(struct kld32_file_stat_1) &&
version != sizeof(struct kld32_file_stat))
return (EINVAL);
stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO);
stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO);
error = kern_kldstat(td, uap->fileid, stat);
if (error == 0) {
bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name));
CP(*stat, *stat32, refs);
CP(*stat, *stat32, id);
PTROUT_CP(*stat, *stat32, address);
CP(*stat, *stat32, size);
bcopy(&stat->pathname[0], &stat32->pathname[0],
sizeof(stat->pathname));
stat32->version = version;
error = copyout(stat32, uap->stat, version);
}
free(stat, M_TEMP);
free(stat32, M_TEMP);
return (error);
}
int
freebsd32_posix_fallocate(struct thread *td,
struct freebsd32_posix_fallocate_args *uap)
{
int error;
error = kern_posix_fallocate(td, uap->fd,
PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len));
return (kern_posix_error(td, error));
}
int
freebsd32_posix_fadvise(struct thread *td,
struct freebsd32_posix_fadvise_args *uap)
{
int error;
error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset),
PAIR32TO64(off_t, uap->len), uap->advice);
return (kern_posix_error(td, error));
}
int
convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig)
{
CP(*sig32, *sig, sigev_notify);
switch (sig->sigev_notify) {
case SIGEV_NONE:
break;
case SIGEV_THREAD_ID:
CP(*sig32, *sig, sigev_notify_thread_id);
/* FALLTHROUGH */
case SIGEV_SIGNAL:
CP(*sig32, *sig, sigev_signo);
PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
break;
case SIGEV_KEVENT:
CP(*sig32, *sig, sigev_notify_kqueue);
CP(*sig32, *sig, sigev_notify_kevent_flags);
PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
break;
default:
return (EINVAL);
}
return (0);
}
int
freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap)
{
void *data;
union {
struct procctl_reaper_status rs;
struct procctl_reaper_pids rp;
struct procctl_reaper_kill rk;
} x;
union {
struct procctl_reaper_pids32 rp;
} x32;
int error, error1, flags, signum;
switch (uap->com) {
case PROC_SPROTECT:
case PROC_TRACE_CTL:
case PROC_TRAPCAP_CTL:
error = copyin(PTRIN(uap->data), &flags, sizeof(flags));
if (error != 0)
return (error);
data = &flags;
break;
case PROC_REAP_ACQUIRE:
case PROC_REAP_RELEASE:
if (uap->data != NULL)
return (EINVAL);
data = NULL;
break;
case PROC_REAP_STATUS:
data = &x.rs;
break;
case PROC_REAP_GETPIDS:
error = copyin(uap->data, &x32.rp, sizeof(x32.rp));
if (error != 0)
return (error);
CP(x32.rp, x.rp, rp_count);
PTRIN_CP(x32.rp, x.rp, rp_pids);
data = &x.rp;
break;
case PROC_REAP_KILL:
error = copyin(uap->data, &x.rk, sizeof(x.rk));
if (error != 0)
return (error);
data = &x.rk;
break;
case PROC_TRACE_STATUS:
case PROC_TRAPCAP_STATUS:
data = &flags;
break;
case PROC_PDEATHSIG_CTL:
error = copyin(uap->data, &signum, sizeof(signum));
if (error != 0)
return (error);
data = &signum;
break;
case PROC_PDEATHSIG_STATUS:
data = &signum;
break;
default:
return (EINVAL);
}
error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
uap->com, data);
switch (uap->com) {
case PROC_REAP_STATUS:
if (error == 0)
error = copyout(&x.rs, uap->data, sizeof(x.rs));
break;
case PROC_REAP_KILL:
error1 = copyout(&x.rk, uap->data, sizeof(x.rk));
if (error == 0)
error = error1;
break;
case PROC_TRACE_STATUS:
case PROC_TRAPCAP_STATUS:
if (error == 0)
error = copyout(&flags, uap->data, sizeof(flags));
break;
case PROC_PDEATHSIG_STATUS:
if (error == 0)
error = copyout(&signum, uap->data, sizeof(signum));
break;
}
return (error);
}
int
freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap)
{
long tmp;
switch (uap->cmd) {
/*
* Do unsigned conversion for arg when operation
* interprets it as flags or pointer.
*/
case F_SETLK_REMOTE:
case F_SETLKW:
case F_SETLK:
case F_GETLK:
case F_SETFD:
case F_SETFL:
case F_OGETLK:
case F_OSETLK:
case F_OSETLKW:
tmp = (unsigned int)(uap->arg);
break;
default:
tmp = uap->arg;
break;
}
return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp));
}
int
freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap)
{
struct timespec32 ts32;
struct timespec ts, *tsp;
sigset_t set, *ssp;
int error;
if (uap->ts != NULL) {
error = copyin(uap->ts, &ts32, sizeof(ts32));
if (error != 0)
return (error);
CP(ts32, ts, tv_sec);
CP(ts32, ts, tv_nsec);
tsp = &ts;
} else
tsp = NULL;
if (uap->set != NULL) {
error = copyin(uap->set, &set, sizeof(set));
if (error != 0)
return (error);
ssp = &set;
} else
ssp = NULL;
return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp));
}
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