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freebsd-dev/sys/compat/freebsd32/freebsd32_misc.c
Dmitry Chagin cb858340dc linux(4): Add a dedicated statat() implementation 
Get rid of calling Linux stat translation hook and specific to Linux
handling of non-vnode dirfd from kern_statat(),

Reviewed by:		kib, mjg
Differential revision:	https://reviews.freebsd.org/D35474
2023-04-28 11:55:04 +03:00

4112 lines
93 KiB
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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_ffclock.h"
#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/priv.h>
#include <sys/proc.h>
#include <sys/procctl.h>
#include <sys/ptrace.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/timex.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>
#include <sys/timeffc.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>
#ifdef __amd64__
#include <machine/md_var.h>
#endif
#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");
struct ptrace_io_desc32 {
int piod_op;
uint32_t piod_offs;
uint32_t piod_addr;
uint32_t piod_len;
};
struct ptrace_vm_entry32 {
int pve_entry;
int pve_timestamp;
uint32_t pve_start;
uint32_t pve_end;
uint32_t pve_offset;
u_int pve_prot;
u_int pve_pathlen;
int32_t pve_fileid;
u_int pve_fsid;
uint32_t pve_path;
};
#ifdef __amd64__
CTASSERT(sizeof(struct timeval32) == 8);
CTASSERT(sizeof(struct timespec32) == 8);
CTASSERT(sizeof(struct itimerval32) == 16);
CTASSERT(sizeof(struct bintime32) == 12);
#else
CTASSERT(sizeof(struct timeval32) == 16);
CTASSERT(sizeof(struct timespec32) == 16);
CTASSERT(sizeof(struct itimerval32) == 32);
CTASSERT(sizeof(struct bintime32) == 16);
#endif
CTASSERT(sizeof(struct ostatfs32) == 256);
#ifdef __amd64__
CTASSERT(sizeof(struct rusage32) == 72);
#else
CTASSERT(sizeof(struct rusage32) == 88);
#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);
#else
CTASSERT(sizeof(struct stat32) == 224);
CTASSERT(sizeof(struct freebsd11_stat32) == 120);
#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 ostatfs32 *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_OMNAMELEN));
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_OMNAMELEN));
}
#endif
int
freebsd32_getfsstat(struct thread *td, struct freebsd32_getfsstat_args *uap)
{
size_t count;
int error;
if (uap->bufsize < 0 || uap->bufsize > SIZE_MAX)
return (EINVAL);
error = kern_getfsstat(td, &uap->buf, uap->bufsize, &count,
UIO_USERSPACE, uap->mode);
if (error == 0)
td->td_retval[0] = count;
return (error);
}
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_getfsstat(struct thread *td,
struct freebsd4_freebsd32_getfsstat_args *uap)
{
struct statfs *buf, *sp;
struct ostatfs32 stat32;
size_t count, size, copycount;
int error;
count = uap->bufsize / sizeof(struct ostatfs32);
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_FREEBSD11
int
freebsd11_freebsd32_getfsstat(struct thread *td,
struct freebsd11_freebsd32_getfsstat_args *uap)
{
return(kern_freebsd11_getfsstat(td, uap->buf, uap->bufsize,
uap->mode));
}
#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, const char *fname,
enum uio_seg segflg, uint32_t *argv, uint32_t *envv)
{
char *argp, *envp;
uint32_t *p32, arg;
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.
*/
error = exec_args_add_fname(args, fname, segflg);
if (error != 0)
goto err_exit;
/*
* 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 = exec_args_add_arg(args, argp, UIO_USERSPACE);
if (error != 0)
goto err_exit;
}
/*
* 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 = exec_args_add_env(args, envp, UIO_USERSPACE);
if (error != 0)
goto err_exit;
}
}
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, oldvmspace);
post_execve(td, error, oldvmspace);
AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
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, oldvmspace);
}
post_execve(td, error, oldvmspace);
AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
return (error);
}
int
freebsd32_mknodat(struct thread *td, struct freebsd32_mknodat_args *uap)
{
return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE,
uap->mode, PAIR32TO64(dev_t, uap->dev)));
}
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, &(struct mmap_req){
.mr_hint = (uintptr_t)uap->addr,
.mr_len = uap->len,
.mr_prot = prot,
.mr_flags = uap->flags,
.mr_fd = uap->fd,
.mr_pos = 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, &(struct mmap_req){
.mr_hint = (uintptr_t)uap->addr,
.mr_len = uap->len,
.mr_prot = prot,
.mr_flags = uap->flags,
.mr_fd = uap->fd,
.mr_pos = PAIR32TO64(off_t, uap->pos),
}));
}
#endif
#ifdef COMPAT_43
int
ofreebsd32_mmap(struct thread *td, struct ofreebsd32_mmap_args *uap)
{
return (kern_ommap(td, (uintptr_t)uap->addr, uap->len, uap->prot,
uap->flags, uap->fd, 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 freebsd11_kevent32 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 freebsd11_kevent32 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 freebsd11_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("freebsd11_kevent32", UIO_USERSPACE,
uap->changelist, uap->nchanges,
sizeof(struct freebsd11_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("freebsd11_kevent32", UIO_USERSPACE,
eventlist, td->td_retval[0],
sizeof(struct freebsd11_kevent32));
#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 = 0;
rtz.tz_dsttime = 0;
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 == 0) {
freebsd32_rusage_out(&s, &s32);
error = copyout(&s32, uap->rusage, sizeof(s32));
}
return (error);
}
static void
ptrace_lwpinfo_to32(const struct ptrace_lwpinfo *pl,
struct ptrace_lwpinfo32 *pl32)
{
bzero(pl32, sizeof(*pl32));
pl32->pl_lwpid = pl->pl_lwpid;
pl32->pl_event = pl->pl_event;
pl32->pl_flags = pl->pl_flags;
pl32->pl_sigmask = pl->pl_sigmask;
pl32->pl_siglist = pl->pl_siglist;
siginfo_to_siginfo32(&pl->pl_siginfo, &pl32->pl_siginfo);
strcpy(pl32->pl_tdname, pl->pl_tdname);
pl32->pl_child_pid = pl->pl_child_pid;
pl32->pl_syscall_code = pl->pl_syscall_code;
pl32->pl_syscall_narg = pl->pl_syscall_narg;
}
static void
ptrace_sc_ret_to32(const struct ptrace_sc_ret *psr,
struct ptrace_sc_ret32 *psr32)
{
bzero(psr32, sizeof(*psr32));
psr32->sr_retval[0] = psr->sr_retval[0];
psr32->sr_retval[1] = psr->sr_retval[1];
psr32->sr_error = psr->sr_error;
}
int
freebsd32_ptrace(struct thread *td, struct freebsd32_ptrace_args *uap)
{
union {
struct ptrace_io_desc piod;
struct ptrace_lwpinfo pl;
struct ptrace_vm_entry pve;
struct ptrace_coredump pc;
struct ptrace_sc_remote sr;
struct dbreg32 dbreg;
struct fpreg32 fpreg;
struct reg32 reg;
struct iovec vec;
register_t args[nitems(td->td_sa.args)];
struct ptrace_sc_ret psr;
int ptevents;
} r;
union {
struct ptrace_io_desc32 piod;
struct ptrace_lwpinfo32 pl;
struct ptrace_vm_entry32 pve;
struct ptrace_coredump32 pc;
struct ptrace_sc_remote32 sr;
uint32_t args[nitems(td->td_sa.args)];
struct ptrace_sc_ret32 psr;
struct iovec32 vec;
} r32;
syscallarg_t pscr_args[nitems(td->td_sa.args)];
u_int pscr_args32[nitems(td->td_sa.args)];
void *addr;
int data, error, i;
if (!allow_ptrace)
return (ENOSYS);
error = 0;
AUDIT_ARG_PID(uap->pid);
AUDIT_ARG_CMD(uap->req);
AUDIT_ARG_VALUE(uap->data);
addr = &r;
data = uap->data;
switch (uap->req) {
case PT_GET_EVENT_MASK:
case PT_GET_SC_ARGS:
case PT_GET_SC_RET:
break;
case PT_LWPINFO:
if (uap->data > sizeof(r32.pl))
return (EINVAL);
/*
* Pass size of native structure in 'data'. Truncate
* if necessary to avoid siginfo.
*/
data = sizeof(r.pl);
if (uap->data < offsetof(struct ptrace_lwpinfo32, pl_siginfo) +
sizeof(struct siginfo32))
data = offsetof(struct ptrace_lwpinfo, pl_siginfo);
break;
case PT_GETREGS:
bzero(&r.reg, sizeof(r.reg));
break;
case PT_GETFPREGS:
bzero(&r.fpreg, sizeof(r.fpreg));
break;
case PT_GETDBREGS:
bzero(&r.dbreg, sizeof(r.dbreg));
break;
case PT_SETREGS:
error = copyin(uap->addr, &r.reg, sizeof(r.reg));
break;
case PT_SETFPREGS:
error = copyin(uap->addr, &r.fpreg, sizeof(r.fpreg));
break;
case PT_SETDBREGS:
error = copyin(uap->addr, &r.dbreg, sizeof(r.dbreg));
break;
case PT_GETREGSET:
case PT_SETREGSET:
error = copyin(uap->addr, &r32.vec, sizeof(r32.vec));
if (error != 0)
break;
r.vec.iov_len = r32.vec.iov_len;
r.vec.iov_base = PTRIN(r32.vec.iov_base);
break;
case PT_SET_EVENT_MASK:
if (uap->data != sizeof(r.ptevents))
error = EINVAL;
else
error = copyin(uap->addr, &r.ptevents, uap->data);
break;
case PT_IO:
error = copyin(uap->addr, &r32.piod, sizeof(r32.piod));
if (error)
break;
CP(r32.piod, r.piod, piod_op);
PTRIN_CP(r32.piod, r.piod, piod_offs);
PTRIN_CP(r32.piod, r.piod, piod_addr);
CP(r32.piod, r.piod, piod_len);
break;
case PT_VM_ENTRY:
error = copyin(uap->addr, &r32.pve, sizeof(r32.pve));
if (error)
break;
CP(r32.pve, r.pve, pve_entry);
CP(r32.pve, r.pve, pve_timestamp);
CP(r32.pve, r.pve, pve_start);
CP(r32.pve, r.pve, pve_end);
CP(r32.pve, r.pve, pve_offset);
CP(r32.pve, r.pve, pve_prot);
CP(r32.pve, r.pve, pve_pathlen);
CP(r32.pve, r.pve, pve_fileid);
CP(r32.pve, r.pve, pve_fsid);
PTRIN_CP(r32.pve, r.pve, pve_path);
break;
case PT_COREDUMP:
if (uap->data != sizeof(r32.pc))
error = EINVAL;
else
error = copyin(uap->addr, &r32.pc, uap->data);
CP(r32.pc, r.pc, pc_fd);
CP(r32.pc, r.pc, pc_flags);
r.pc.pc_limit = PAIR32TO64(off_t, r32.pc.pc_limit);
data = sizeof(r.pc);
break;
case PT_SC_REMOTE:
if (uap->data != sizeof(r32.sr)) {
error = EINVAL;
break;
}
error = copyin(uap->addr, &r32.sr, uap->data);
if (error != 0)
break;
CP(r32.sr, r.sr, pscr_syscall);
CP(r32.sr, r.sr, pscr_nargs);
if (r.sr.pscr_nargs > nitems(td->td_sa.args)) {
error = EINVAL;
break;
}
error = copyin(PTRIN(r32.sr.pscr_args), pscr_args32,
sizeof(u_int) * r32.sr.pscr_nargs);
if (error != 0)
break;
for (i = 0; i < r32.sr.pscr_nargs; i++)
pscr_args[i] = pscr_args32[i];
r.sr.pscr_args = pscr_args;
break;
default:
addr = uap->addr;
break;
}
if (error)
return (error);
error = kern_ptrace(td, uap->req, uap->pid, addr, data);
if (error)
return (error);
switch (uap->req) {
case PT_VM_ENTRY:
CP(r.pve, r32.pve, pve_entry);
CP(r.pve, r32.pve, pve_timestamp);
CP(r.pve, r32.pve, pve_start);
CP(r.pve, r32.pve, pve_end);
CP(r.pve, r32.pve, pve_offset);
CP(r.pve, r32.pve, pve_prot);
CP(r.pve, r32.pve, pve_pathlen);
CP(r.pve, r32.pve, pve_fileid);
CP(r.pve, r32.pve, pve_fsid);
error = copyout(&r32.pve, uap->addr, sizeof(r32.pve));
break;
case PT_IO:
CP(r.piod, r32.piod, piod_len);
error = copyout(&r32.piod, uap->addr, sizeof(r32.piod));
break;
case PT_GETREGS:
error = copyout(&r.reg, uap->addr, sizeof(r.reg));
break;
case PT_GETFPREGS:
error = copyout(&r.fpreg, uap->addr, sizeof(r.fpreg));
break;
case PT_GETDBREGS:
error = copyout(&r.dbreg, uap->addr, sizeof(r.dbreg));
break;
case PT_GETREGSET:
r32.vec.iov_len = r.vec.iov_len;
error = copyout(&r32.vec, uap->addr, sizeof(r32.vec));
break;
case PT_GET_EVENT_MASK:
/* NB: The size in uap->data is validated in kern_ptrace(). */
error = copyout(&r.ptevents, uap->addr, uap->data);
break;
case PT_LWPINFO:
ptrace_lwpinfo_to32(&r.pl, &r32.pl);
error = copyout(&r32.pl, uap->addr, uap->data);
break;
case PT_GET_SC_ARGS:
for (i = 0; i < nitems(r.args); i++)
r32.args[i] = (uint32_t)r.args[i];
error = copyout(r32.args, uap->addr, MIN(uap->data,
sizeof(r32.args)));
break;
case PT_GET_SC_RET:
ptrace_sc_ret_to32(&r.psr, &r32.psr);
error = copyout(&r32.psr, uap->addr, MIN(uap->data,
sizeof(r32.psr)));
break;
case PT_SC_REMOTE:
ptrace_sc_ret_to32(&r.sr.pscr_ret, &r32.sr.pscr_ret);
error = copyout(&r32.sr.pscr_ret, uap->addr +
offsetof(struct ptrace_sc_remote32, pscr_ret),
sizeof(r32.psr));
break;
}
return (error);
}
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(const 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);
}
#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
#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(const 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, oldclen;
int error;
caddr_t ctlbuf;
int len, copylen;
struct mbuf *m;
error = 0;
len = msg->msg_controllen;
msg->msg_controllen = 0;
ctlbuf = msg->msg_control;
for (m = control; m != NULL && len > 0; m = m->m_next) {
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);
/*
* Copy out the message header. Preserve the native
* message size in case we need to inspect the message
* contents later.
*/
copylen = sizeof(struct cmsghdr);
if (len < copylen) {
msg->msg_flags |= MSG_CTRUNC;
m_dispose_extcontrolm(m);
goto exit;
}
oldclen = cm->cmsg_len;
cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
datalen_out;
error = copyout(cm, ctlbuf, copylen);
cm->cmsg_len = oldclen;
if (error != 0)
goto exit;
ctlbuf += FREEBSD32_ALIGN(copylen);
len -= FREEBSD32_ALIGN(copylen);
copylen = datalen_out;
if (len < copylen) {
msg->msg_flags |= MSG_CTRUNC;
m_dispose_extcontrolm(m);
break;
}
/* Copy out the message data. */
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;
}
msg->msg_controllen +=
FREEBSD32_CMSG_SPACE(datalen_out);
}
}
if (len == 0 && m != NULL) {
msg->msg_flags |= MSG_CTRUNC;
m_dispose_extcontrolm(m);
}
exit:
return (error);
}
int
freebsd32_recvmsg(struct thread *td, struct freebsd32_recvmsg_args *uap)
{
struct msghdr msg;
struct iovec *uiov, *iov;
struct mbuf *control = NULL;
struct mbuf **controlp;
int error;
error = freebsd32_copyinmsghdr(uap->msg, &msg);
if (error)
return (error);
error = freebsd32_copyiniov((void *)msg.msg_iov, msg.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) {
if (error != 0)
m_dispose_extcontrolm(control);
m_freem(control);
}
return (error);
}
#ifdef COMPAT_43
int
ofreebsd32_recvmsg(struct thread *td, struct ofreebsd32_recvmsg_args *uap)
{
return (ENOSYS);
}
#endif
/*
* 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 cmsghdr *cm;
struct mbuf *m;
void *in, *in1, *md;
u_int msglen, outlen;
int error;
/* Enforce the size limit of the native implementation. */
if (buflen > MCLBYTES)
return (EINVAL);
in = malloc(buflen, M_TEMP, M_WAITOK);
error = copyin(buf, in, buflen);
if (error != 0)
goto out;
/*
* Make a pass over the input buffer to determine the amount of space
* required for 64 bit-aligned copies of the control messages.
*/
in1 = in;
outlen = 0;
while (buflen > 0) {
if (buflen < sizeof(*cm)) {
error = EINVAL;
break;
}
cm = (struct cmsghdr *)in1;
if (cm->cmsg_len < FREEBSD32_ALIGN(sizeof(*cm)) ||
cm->cmsg_len > buflen) {
error = EINVAL;
break;
}
msglen = FREEBSD32_ALIGN(cm->cmsg_len);
if (msglen < cm->cmsg_len) {
error = EINVAL;
break;
}
/* The native ABI permits the final padding to be omitted. */
if (msglen > buflen)
msglen = buflen;
buflen -= msglen;
in1 = (char *)in1 + msglen;
outlen += CMSG_ALIGN(sizeof(*cm)) +
CMSG_ALIGN(msglen - FREEBSD32_ALIGN(sizeof(*cm)));
}
if (error != 0)
goto out;
/*
* Allocate up to MJUMPAGESIZE space for the re-aligned and
* re-padded control messages. This allows a full MCLBYTES of
* 32-bit sized and aligned messages to fit and avoids an ABI
* mismatch with the native implementation.
*/
m = m_get2(outlen, M_WAITOK, MT_CONTROL, 0);
if (m == NULL) {
error = EINVAL;
goto out;
}
m->m_len = outlen;
md = mtod(m, void *);
/*
* Make a second pass over input messages, copying them into the output
* buffer.
*/
in1 = in;
while (outlen > 0) {
/* Copy the message header and align the length field. */
cm = md;
memcpy(cm, in1, sizeof(*cm));
msglen = cm->cmsg_len - FREEBSD32_ALIGN(sizeof(*cm));
cm->cmsg_len = CMSG_ALIGN(sizeof(*cm)) + msglen;
/* Copy the message body. */
in1 = (char *)in1 + FREEBSD32_ALIGN(sizeof(*cm));
md = (char *)md + CMSG_ALIGN(sizeof(*cm));
memcpy(md, in1, msglen);
in1 = (char *)in1 + FREEBSD32_ALIGN(msglen);
md = (char *)md + CMSG_ALIGN(msglen);
KASSERT(outlen >= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen),
("outlen %u underflow, msglen %u", outlen, msglen));
outlen -= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen);
}
*mp = m;
out:
free(in, M_TEMP);
return (error);
}
int
freebsd32_sendmsg(struct thread *td, struct freebsd32_sendmsg_args *uap)
{
struct msghdr msg;
struct iovec *iov;
struct mbuf *control = NULL;
struct sockaddr *to = NULL;
int error;
error = freebsd32_copyinmsghdr(uap->msg, &msg);
if (error)
return (error);
error = freebsd32_copyiniov((void *)msg.msg_iov, msg.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);
}
#ifdef COMPAT_43
int
ofreebsd32_sendmsg(struct thread *td, struct ofreebsd32_sendmsg_args *uap)
{
return (ENOSYS);
}
#endif
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 ostatfs32 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 ostatfs32 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 ostatfs32 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)));
}
#ifdef COMPAT_43
int
ofreebsd32_truncate(struct thread *td, struct ofreebsd32_truncate_args *uap)
{
return (kern_truncate(td, uap->path, UIO_USERSPACE, uap->length));
}
#endif
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_ftruncate(struct thread *td, struct ofreebsd32_ftruncate_args *uap)
{
return (kern_ftruncate(td, uap->fd, uap->length));
}
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);
}
#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_one(&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)
{
#ifndef __amd64__
/*
* 32-bit architectures other than i386 have 64-bit time_t. This
* results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
* and 4 bytes of padding. Zero the padding holes in struct stat32.
*/
bzero(&out->st_atim, sizeof(out->st_atim));
bzero(&out->st_mtim, sizeof(out->st_mtim));
bzero(&out->st_ctim, sizeof(out->st_ctim));
bzero(&out->st_birthtim, sizeof(out->st_birthtim));
#endif
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);
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->sb, 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->sb, 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);
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);
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)
{
#ifndef __amd64__
/*
* 32-bit architectures other than i386 have 64-bit time_t. This
* results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
* and 4 bytes of padding. Zero the padding holes in freebsd11_stat32.
*/
bzero(&out->st_atim, sizeof(out->st_atim));
bzero(&out->st_mtim, sizeof(out->st_mtim));
bzero(&out->st_ctim, sizeof(out->st_ctim));
bzero(&out->st_birthtim, sizeof(out->st_birthtim));
#endif
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);
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->sb, 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);
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);
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);
}
static int
freebsd11_cvtnstat32(struct stat *sb, struct nstat32 *nsb32)
{
struct nstat nsb;
int error;
error = freebsd11_cvtnstat(sb, &nsb);
if (error != 0)
return (error);
bzero(nsb32, sizeof(*nsb32));
CP(nsb, *nsb32, st_dev);
CP(nsb, *nsb32, st_ino);
CP(nsb, *nsb32, st_mode);
CP(nsb, *nsb32, st_nlink);
CP(nsb, *nsb32, st_uid);
CP(nsb, *nsb32, st_gid);
CP(nsb, *nsb32, st_rdev);
CP(nsb, *nsb32, st_atim.tv_sec);
CP(nsb, *nsb32, st_atim.tv_nsec);
CP(nsb, *nsb32, st_mtim.tv_sec);
CP(nsb, *nsb32, st_mtim.tv_nsec);
CP(nsb, *nsb32, st_ctim.tv_sec);
CP(nsb, *nsb32, st_ctim.tv_nsec);
CP(nsb, *nsb32, st_size);
CP(nsb, *nsb32, st_blocks);
CP(nsb, *nsb32, st_blksize);
CP(nsb, *nsb32, st_flags);
CP(nsb, *nsb32, st_gen);
CP(nsb, *nsb32, st_birthtim.tv_sec);
CP(nsb, *nsb32, st_birthtim.tv_nsec);
return (0);
}
int
freebsd11_freebsd32_nstat(struct thread *td,
struct freebsd11_freebsd32_nstat_args *uap)
{
struct stat sb;
struct nstat32 nsb;
int error;
error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, &sb);
if (error != 0)
return (error);
error = freebsd11_cvtnstat32(&sb, &nsb);
if (error != 0)
error = copyout(&nsb, uap->ub, sizeof (nsb));
return (error);
}
int
freebsd11_freebsd32_nlstat(struct thread *td,
struct freebsd11_freebsd32_nlstat_args *uap)
{
struct stat sb;
struct nstat32 nsb;
int error;
error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
UIO_USERSPACE, &sb);
if (error != 0)
return (error);
error = freebsd11_cvtnstat32(&sb, &nsb);
if (error == 0)
error = copyout(&nsb, uap->ub, sizeof (nsb));
return (error);
}
int
freebsd11_freebsd32_nfstat(struct thread *td,
struct freebsd11_freebsd32_nfstat_args *uap)
{
struct nstat32 nub;
struct stat ub;
int error;
error = kern_fstat(td, uap->fd, &ub);
if (error != 0)
return (error);
error = freebsd11_cvtnstat32(&ub, &nub);
if (error == 0)
error = copyout(&nub, uap->sb, sizeof(nub));
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___sysctlbyname(struct thread *td,
struct freebsd32___sysctlbyname_args *uap)
{
size_t oldlen, rv;
int error;
uint32_t tmp;
if (uap->oldlenp != NULL) {
error = fueword32(uap->oldlenp, &tmp);
oldlen = tmp;
} else {
error = oldlen = 0;
}
if (error != 0)
return (EFAULT);
error = kern___sysctlbyname(td, uap->name, uap->namelen, uap->old,
&oldlen, uap->new, uap->newlen, &rv, SCTL_MASK32, 1);
if (error != 0)
return (error);
if (uap->oldlenp != NULL)
error = suword32(uap->oldlenp, rv);
return (error);
}
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 {
uint32_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);
}
struct sigvec32 {
uint32_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);
}
struct sigstack32 {
uint32_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, error2;
error = copyin(ua_rqtp, &rqt32, sizeof(rqt32));
if (error)
return (error);
CP(rqt32, rqt, tv_sec);
CP(rqt32, rqt, tv_nsec);
error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) {
CP(rmt, rmt32, tv_sec);
CP(rmt, rmt32, tv_nsec);
error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32));
if (error2 != 0)
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 = (uint32_t)(uint64_t)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));
}
static int
copyin32_set(const void *u, void *k, size_t size)
{
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
int rv;
struct bitset *kb = k;
int *p;
rv = copyin(u, k, size);
if (rv != 0)
return (rv);
p = (int *)kb->__bits;
/* Loop through swapping words.
* `size' is in bytes, we need bits. */
for (int i = 0; i < __bitset_words(size * 8); i++) {
int tmp = p[0];
p[0] = p[1];
p[1] = tmp;
p += 2;
}
return (0);
#else
return (copyin(u, k, size));
#endif
}
static int
copyout32_set(const void *k, void *u, size_t size)
{
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
const struct bitset *kb = k;
struct bitset *ub = u;
const int *kp = (const int *)kb->__bits;
int *up = (int *)ub->__bits;
int rv;
for (int i = 0; i < __bitset_words(CPU_SETSIZE); i++) {
/* `size' is in bytes, we need bits. */
for (int i = 0; i < __bitset_words(size * 8); i++) {
rv = suword32(up, kp[1]);
if (rv == 0)
rv = suword32(up + 1, kp[0]);
if (rv != 0)
return (EFAULT);
}
}
return (0);
#else
return (copyout(k, u, size));
#endif
}
static const struct cpuset_copy_cb cpuset_copy32_cb = {
.cpuset_copyin = copyin32_set,
.cpuset_copyout = copyout32_set
};
int
freebsd32_cpuset_getaffinity(struct thread *td,
struct freebsd32_cpuset_getaffinity_args *uap)
{
return (user_cpuset_getaffinity(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask,
&cpuset_copy32_cb));
}
int
freebsd32_cpuset_setaffinity(struct thread *td,
struct freebsd32_cpuset_setaffinity_args *uap)
{
return (user_cpuset_setaffinity(td, uap->level, uap->which,
PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask,
&cpuset_copy32_cb));
}
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,
&cpuset_copy32_cb));
}
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,
&cpuset_copy32_cb));
}
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));
}
int
freebsd32_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
{
struct sysentvec *sysent;
int argc, envc, i;
uint32_t *vectp;
char *stringp;
uintptr_t destp, ustringp;
struct freebsd32_ps_strings *arginfo;
char canary[sizeof(long) * 8];
int32_t pagesizes32[MAXPAGESIZES];
size_t execpath_len;
int error, szsigcode;
sysent = imgp->sysent;
arginfo = (struct freebsd32_ps_strings *)PROC_PS_STRINGS(imgp->proc);
imgp->ps_strings = arginfo;
destp = (uintptr_t)arginfo;
/*
* Install sigcode.
*/
if (!PROC_HAS_SHP(imgp->proc)) {
szsigcode = *sysent->sv_szsigcode;
destp -= szsigcode;
destp = rounddown2(destp, sizeof(uint32_t));
error = copyout(sysent->sv_sigcode, (void *)destp,
szsigcode);
if (error != 0)
return (error);
}
/*
* Copy the image path for the rtld.
*/
if (imgp->execpath != NULL && imgp->auxargs != NULL) {
execpath_len = strlen(imgp->execpath) + 1;
destp -= execpath_len;
imgp->execpathp = (void *)destp;
error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
if (error != 0)
return (error);
}
/*
* Prepare the canary for SSP.
*/
arc4rand(canary, sizeof(canary), 0);
destp -= sizeof(canary);
imgp->canary = (void *)destp;
error = copyout(canary, imgp->canary, sizeof(canary));
if (error != 0)
return (error);
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 = (void *)destp;
error = copyout(pagesizes32, imgp->pagesizes, sizeof(pagesizes32));
if (error != 0)
return (error);
imgp->pagesizeslen = sizeof(pagesizes32);
/*
* Allocate room for the argument and environment strings.
*/
destp -= ARG_MAX - imgp->args->stringspace;
destp = rounddown2(destp, sizeof(uint32_t));
ustringp = destp;
if (imgp->auxargs) {
/*
* Allocate room on the stack for the ELF auxargs
* array. It has up to AT_COUNT entries.
*/
destp -= AT_COUNT * sizeof(Elf32_Auxinfo);
destp = rounddown2(destp, sizeof(uint32_t));
}
vectp = (uint32_t *)destp;
/*
* 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 = (uintptr_t)vectp;
stringp = imgp->args->begin_argv;
argc = imgp->args->argc;
envc = imgp->args->envc;
/*
* Copy out strings - arguments and environment.
*/
error = copyout(stringp, (void *)ustringp,
ARG_MAX - imgp->args->stringspace);
if (error != 0)
return (error);
/*
* Fill in "ps_strings" struct for ps, w, etc.
*/
imgp->argv = vectp;
if (suword32(&arginfo->ps_argvstr, (uint32_t)(intptr_t)vectp) != 0 ||
suword32(&arginfo->ps_nargvstr, argc) != 0)
return (EFAULT);
/*
* Fill in argument portion of vector table.
*/
for (; argc > 0; --argc) {
if (suword32(vectp++, ustringp) != 0)
return (EFAULT);
while (*stringp++ != 0)
ustringp++;
ustringp++;
}
/* a null vector table pointer separates the argp's from the envp's */
if (suword32(vectp++, 0) != 0)
return (EFAULT);
imgp->envv = vectp;
if (suword32(&arginfo->ps_envstr, (uint32_t)(intptr_t)vectp) != 0 ||
suword32(&arginfo->ps_nenvstr, envc) != 0)
return (EFAULT);
/*
* Fill in environment portion of vector table.
*/
for (; envc > 0; --envc) {
if (suword32(vectp++, ustringp) != 0)
return (EFAULT);
while (*stringp++ != 0)
ustringp++;
ustringp++;
}
/* end of vector table is a null pointer */
if (suword32(vectp, 0) != 0)
return (EFAULT);
if (imgp->auxargs) {
vectp++;
error = imgp->sysent->sv_copyout_auxargs(imgp,
(uintptr_t)vectp);
if (error != 0)
return (error);
}
return (0);
}
int
freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
{
struct kld_file_stat *stat;
struct kld_file_stat32 *stat32;
int error, version;
if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
!= 0)
return (error);
if (version != sizeof(struct kld_file_stat_1_32) &&
version != sizeof(struct kld_file_stat32))
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;
if (uap->com >= PROC_PROCCTL_MD_MIN)
return (cpu_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
uap->com, PTRIN(uap->data)));
switch (uap->com) {
case PROC_ASLR_CTL:
case PROC_PROTMAX_CTL:
case PROC_SPROTECT:
case PROC_STACKGAP_CTL:
case PROC_TRACE_CTL:
case PROC_TRAPCAP_CTL:
case PROC_NO_NEW_PRIVS_CTL:
case PROC_WXMAP_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_ASLR_STATUS:
case PROC_PROTMAX_STATUS:
case PROC_STACKGAP_STATUS:
case PROC_TRACE_STATUS:
case PROC_TRAPCAP_STATUS:
case PROC_NO_NEW_PRIVS_STATUS:
case PROC_WXMAP_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_ASLR_STATUS:
case PROC_PROTMAX_STATUS:
case PROC_STACKGAP_STATUS:
case PROC_TRACE_STATUS:
case PROC_TRAPCAP_STATUS:
case PROC_NO_NEW_PRIVS_STATUS:
case PROC_WXMAP_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:
case F_KINFO:
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));
}
int
freebsd32_sched_rr_get_interval(struct thread *td,
struct freebsd32_sched_rr_get_interval_args *uap)
{
struct timespec ts;
struct timespec32 ts32;
int error;
error = kern_sched_rr_get_interval(td, uap->pid, &ts);
if (error == 0) {
CP(ts, ts32, tv_sec);
CP(ts, ts32, tv_nsec);
error = copyout(&ts32, uap->interval, sizeof(ts32));
}
return (error);
}
static void
timex_to_32(struct timex32 *dst, struct timex *src)
{
CP(*src, *dst, modes);
CP(*src, *dst, offset);
CP(*src, *dst, freq);
CP(*src, *dst, maxerror);
CP(*src, *dst, esterror);
CP(*src, *dst, status);
CP(*src, *dst, constant);
CP(*src, *dst, precision);
CP(*src, *dst, tolerance);
CP(*src, *dst, ppsfreq);
CP(*src, *dst, jitter);
CP(*src, *dst, shift);
CP(*src, *dst, stabil);
CP(*src, *dst, jitcnt);
CP(*src, *dst, calcnt);
CP(*src, *dst, errcnt);
CP(*src, *dst, stbcnt);
}
static void
timex_from_32(struct timex *dst, struct timex32 *src)
{
CP(*src, *dst, modes);
CP(*src, *dst, offset);
CP(*src, *dst, freq);
CP(*src, *dst, maxerror);
CP(*src, *dst, esterror);
CP(*src, *dst, status);
CP(*src, *dst, constant);
CP(*src, *dst, precision);
CP(*src, *dst, tolerance);
CP(*src, *dst, ppsfreq);
CP(*src, *dst, jitter);
CP(*src, *dst, shift);
CP(*src, *dst, stabil);
CP(*src, *dst, jitcnt);
CP(*src, *dst, calcnt);
CP(*src, *dst, errcnt);
CP(*src, *dst, stbcnt);
}
int
freebsd32_ntp_adjtime(struct thread *td, struct freebsd32_ntp_adjtime_args *uap)
{
struct timex tx;
struct timex32 tx32;
int error, retval;
error = copyin(uap->tp, &tx32, sizeof(tx32));
if (error == 0) {
timex_from_32(&tx, &tx32);
error = kern_ntp_adjtime(td, &tx, &retval);
if (error == 0) {
timex_to_32(&tx32, &tx);
error = copyout(&tx32, uap->tp, sizeof(tx32));
if (error == 0)
td->td_retval[0] = retval;
}
}
return (error);
}
#ifdef FFCLOCK
extern struct mtx ffclock_mtx;
extern struct ffclock_estimate ffclock_estimate;
extern int8_t ffclock_updated;
int
freebsd32_ffclock_setestimate(struct thread *td,
struct freebsd32_ffclock_setestimate_args *uap)
{
struct ffclock_estimate cest;
struct ffclock_estimate32 cest32;
int error;
/* Reuse of PRIV_CLOCK_SETTIME. */
if ((error = priv_check(td, PRIV_CLOCK_SETTIME)) != 0)
return (error);
if ((error = copyin(uap->cest, &cest32,
sizeof(struct ffclock_estimate32))) != 0)
return (error);
CP(cest.update_time, cest32.update_time, sec);
memcpy(&cest.update_time.frac, &cest32.update_time.frac, sizeof(uint64_t));
CP(cest, cest32, update_ffcount);
CP(cest, cest32, leapsec_next);
CP(cest, cest32, period);
CP(cest, cest32, errb_abs);
CP(cest, cest32, errb_rate);
CP(cest, cest32, status);
CP(cest, cest32, leapsec_total);
CP(cest, cest32, leapsec);
mtx_lock(&ffclock_mtx);
memcpy(&ffclock_estimate, &cest, sizeof(struct ffclock_estimate));
ffclock_updated++;
mtx_unlock(&ffclock_mtx);
return (error);
}
int
freebsd32_ffclock_getestimate(struct thread *td,
struct freebsd32_ffclock_getestimate_args *uap)
{
struct ffclock_estimate cest;
struct ffclock_estimate32 cest32;
int error;
mtx_lock(&ffclock_mtx);
memcpy(&cest, &ffclock_estimate, sizeof(struct ffclock_estimate));
mtx_unlock(&ffclock_mtx);
CP(cest32.update_time, cest.update_time, sec);
memcpy(&cest32.update_time.frac, &cest.update_time.frac, sizeof(uint64_t));
CP(cest32, cest, update_ffcount);
CP(cest32, cest, leapsec_next);
CP(cest32, cest, period);
CP(cest32, cest, errb_abs);
CP(cest32, cest, errb_rate);
CP(cest32, cest, status);
CP(cest32, cest, leapsec_total);
CP(cest32, cest, leapsec);
error = copyout(&cest32, uap->cest, sizeof(struct ffclock_estimate32));
return (error);
}
#else /* !FFCLOCK */
int
freebsd32_ffclock_setestimate(struct thread *td,
struct freebsd32_ffclock_setestimate_args *uap)
{
return (ENOSYS);
}
int
freebsd32_ffclock_getestimate(struct thread *td,
struct freebsd32_ffclock_getestimate_args *uap)
{
return (ENOSYS);
}
#endif /* FFCLOCK */
#ifdef COMPAT_43
int
ofreebsd32_sethostid(struct thread *td, struct ofreebsd32_sethostid_args *uap)
{
int name[] = { CTL_KERN, KERN_HOSTID };
long hostid;
hostid = uap->hostid;
return (kernel_sysctl(td, name, nitems(name), NULL, NULL, &hostid,
sizeof(hostid), NULL, 0));
}
#endif
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