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0fa211be96
freebsd-skq/sys/compat/freebsd32/freebsd32_misc.c
Marcel Moolenaar 0fa211be96 In freebsd32_sendmsg(), replace the call to sockargs() followed by a 
call to freebsd32_convert_msg_in() with freebsd32_copyin_control() to
readin and convert in a single step. This makes it simpler to put all
the control messages in a single mbuf or mbuf cluster as per the
limitations imposed upon us by ip6_setpktopts().

The logic is as follows:
1.  Go over the array of control messages to determine overall size
    and include extra padding for proper alignment as we go.
2.  Get a mbuf or mbuf cluster as needed or fail if the overall
    (adjusted) size is larger than a cluster.
3.  Go over the array of control messages again, but now copy them
    into kernel space and into aligned offsets.
4.  Update the length of the control message to take padding between
    the header and the data into account (but not for padding added
    between one control message and the next).

Obtained from:	Juniper Networks, Inc.
MFC after:	1 week
2014-04-05 18:56:01 +00:00

3103 lines
68 KiB
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/*-
* 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_compat.h"
#include "opt_inet.h"
#include "opt_inet6.h"
#define __ELF_WORD_SIZE 32
#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>
#include <sys/condvar.h>
#include <sys/sf_buf.h>
#include <sys/sf_sync.h>
#include <sys/sf_base.h>
#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");
#ifndef __mips__
CTASSERT(sizeof(struct timeval32) == 8);
CTASSERT(sizeof(struct timespec32) == 8);
CTASSERT(sizeof(struct itimerval32) == 16);
#endif
CTASSERT(sizeof(struct statfs32) == 256);
#ifndef __mips__
CTASSERT(sizeof(struct rusage32) == 72);
#endif
CTASSERT(sizeof(struct sigaltstack32) == 12);
CTASSERT(sizeof(struct kevent32) == 20);
CTASSERT(sizeof(struct iovec32) == 8);
CTASSERT(sizeof(struct msghdr32) == 28);
#ifndef __mips__
CTASSERT(sizeof(struct 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);
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;
int error;
count = uap->bufsize / sizeof(struct statfs32);
size = count * sizeof(struct statfs);
error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags);
if (size > 0) {
count = td->td_retval[0];
sp = buf;
while (count > 0 && error == 0) {
copy_statfs(sp, &stat32);
error = copyout(&stat32, uap->buf, sizeof(stat32));
sp++;
uap->buf++;
count--;
}
free(buf, M_TEMP);
}
return (error);
}
#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;
int error;
error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE,
uap->argv, uap->envv);
if (error == 0)
error = kern_execve(td, &eargs, NULL);
return (error);
}
int
freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
{
struct image_args eargs;
int 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);
}
return (error);
}
#ifdef __ia64__
static int
freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end,
int prot, int fd, off_t pos)
{
vm_map_t map;
vm_map_entry_t entry;
int rv;
map = &td->td_proc->p_vmspace->vm_map;
if (fd != -1)
prot |= VM_PROT_WRITE;
if (vm_map_lookup_entry(map, start, &entry)) {
if ((entry->protection & prot) != prot) {
rv = vm_map_protect(map,
trunc_page(start),
round_page(end),
entry->protection | prot,
FALSE);
if (rv != KERN_SUCCESS)
return (EINVAL);
}
} else {
vm_offset_t addr = trunc_page(start);
rv = vm_map_find(map, NULL, 0, &addr, PAGE_SIZE, 0,
VMFS_NO_SPACE, prot, VM_PROT_ALL, 0);
if (rv != KERN_SUCCESS)
return (EINVAL);
}
if (fd != -1) {
struct pread_args r;
r.fd = fd;
r.buf = (void *) start;
r.nbyte = end - start;
r.offset = pos;
return (sys_pread(td, &r));
} else {
while (start < end) {
subyte((void *) start, 0);
start++;
}
return (0);
}
}
#endif
int
freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
{
struct mprotect_args ap;
ap.addr = PTRIN(uap->addr);
ap.len = uap->len;
ap.prot = uap->prot;
#if defined(__amd64__) || defined(__ia64__)
if (i386_read_exec && (ap.prot & PROT_READ) != 0)
ap.prot |= PROT_EXEC;
#endif
return (sys_mprotect(td, &ap));
}
int
freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
{
struct mmap_args ap;
vm_offset_t addr = (vm_offset_t) uap->addr;
vm_size_t len = uap->len;
int prot = uap->prot;
int flags = uap->flags;
int fd = uap->fd;
off_t pos = PAIR32TO64(off_t,uap->pos);
#ifdef __ia64__
vm_size_t pageoff;
int error;
/*
* Attempt to handle page size hassles.
*/
pageoff = (pos & PAGE_MASK);
if (flags & MAP_FIXED) {
vm_offset_t start, end;
start = addr;
end = addr + len;
if (start != trunc_page(start)) {
error = freebsd32_mmap_partial(td, start,
round_page(start), prot,
fd, pos);
if (fd != -1)
pos += round_page(start) - start;
start = round_page(start);
}
if (end != round_page(end)) {
vm_offset_t t = trunc_page(end);
error = freebsd32_mmap_partial(td, t, end,
prot, fd,
pos + t - start);
end = trunc_page(end);
}
if (end > start && fd != -1 && (pos & PAGE_MASK)) {
/*
* We can't map this region at all. The specified
* address doesn't have the same alignment as the file
* position. Fake the mapping by simply reading the
* entire region into memory. First we need to make
* sure the region exists.
*/
vm_map_t map;
struct pread_args r;
int rv;
prot |= VM_PROT_WRITE;
map = &td->td_proc->p_vmspace->vm_map;
rv = vm_map_remove(map, start, end);
if (rv != KERN_SUCCESS)
return (EINVAL);
rv = vm_map_find(map, NULL, 0, &start, end - start,
0, VMFS_NO_SPACE, prot, VM_PROT_ALL, 0);
if (rv != KERN_SUCCESS)
return (EINVAL);
r.fd = fd;
r.buf = (void *) start;
r.nbyte = end - start;
r.offset = pos;
error = sys_pread(td, &r);
if (error)
return (error);
td->td_retval[0] = addr;
return (0);
}
if (end == start) {
/*
* After dealing with the ragged ends, there
* might be none left.
*/
td->td_retval[0] = addr;
return (0);
}
addr = start;
len = end - start;
}
#endif
#if defined(__amd64__) || defined(__ia64__)
if (i386_read_exec && (prot & PROT_READ))
prot |= PROT_EXEC;
#endif
ap.addr = (void *) addr;
ap.len = len;
ap.prot = prot;
ap.flags = flags;
ap.fd = fd;
ap.pos = pos;
return (sys_mmap(td, &ap));
}
#ifdef COMPAT_FREEBSD6
int
freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap)
{
struct freebsd32_mmap_args ap;
ap.addr = uap->addr;
ap.len = uap->len;
ap.prot = uap->prot;
ap.flags = uap->flags;
ap.fd = uap->fd;
ap.pos1 = uap->pos1;
ap.pos2 = uap->pos2;
return (freebsd32_mmap(td, &ap));
}
#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];
int i, error = 0;
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);
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_kevent_copyin(void *arg, struct kevent *kevp, int count)
{
struct freebsd32_kevent_args *uap;
struct kevent32 ks32[KQ_NEVENTS];
int i, error = 0;
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);
CP(ks32[i], kevp[i], data);
PTRIN_CP(ks32[i], kevp[i], udata);
}
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 = { uap,
freebsd32_kevent_copyout,
freebsd32_kevent_copyin};
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;
error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
&k_ops, tsp);
return (error);
}
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 int
freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
{
struct cmsghdr *cm;
void *data;
socklen_t clen, datalen;
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;
/* Adjust message length */
cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
datalen;
/* 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;
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_utimes(td, 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_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 s;
int error;
error = kern_statfs(td, uap->path, UIO_USERSPACE, &s);
if (error)
return (error);
copy_statfs(&s, &s32);
return (copyout(&s32, uap->buf, sizeof(s32)));
}
#endif
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
{
struct statfs32 s32;
struct statfs s;
int error;
error = kern_fstatfs(td, uap->fd, &s);
if (error)
return (error);
copy_statfs(&s, &s32);
return (copyout(&s32, uap->buf, sizeof(s32)));
}
#endif
#ifdef COMPAT_FREEBSD4
int
freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
{
struct statfs32 s32;
struct statfs s;
fhandle_t fh;
int error;
if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
return (error);
error = kern_fhstatfs(td, fh, &s);
if (error)
return (error);
copy_statfs(&s, &s32);
return (copyout(&s32, uap->buf, sizeof(s32)));
}
#endif
int
freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
{
struct pread_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = PAIR32TO64(off_t,uap->offset);
return (sys_pread(td, &ap));
}
int
freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
{
struct pwrite_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = PAIR32TO64(off_t,uap->offset);
return (sys_pwrite(td, &ap));
}
#ifdef COMPAT_43
int
ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
{
struct lseek_args nuap;
nuap.fd = uap->fd;
nuap.offset = uap->offset;
nuap.whence = uap->whence;
return (sys_lseek(td, &nuap));
}
#endif
int
freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
{
int error;
struct lseek_args ap;
off_t pos;
ap.fd = uap->fd;
ap.offset = PAIR32TO64(off_t,uap->offset);
ap.whence = uap->whence;
error = sys_lseek(td, &ap);
/* 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)
{
struct truncate_args ap;
ap.path = uap->path;
ap.length = PAIR32TO64(off_t,uap->length);
return (sys_truncate(td, &ap));
}
int
freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
{
struct ftruncate_args ap;
ap.fd = uap->fd;
ap.length = PAIR32TO64(off_t,uap->length);
return (sys_ftruncate(td, &ap));
}
#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
int
freebsd32_getdirentries(struct thread *td,
struct freebsd32_getdirentries_args *uap)
{
long base;
int32_t base32;
int error;
error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base,
NULL, UIO_USERSPACE);
if (error)
return (error);
if (uap->basep != NULL) {
base32 = base;
error = copyout(&base32, uap->basep, sizeof(int32_t));
}
return (error);
}
#ifdef COMPAT_FREEBSD6
/* versions with the 'int pad' argument */
int
freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
{
struct pread_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = PAIR32TO64(off_t,uap->offset);
return (sys_pread(td, &ap));
}
int
freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
{
struct pwrite_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = PAIR32TO64(off_t,uap->offset);
return (sys_pwrite(td, &ap));
}
int
freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
{
int error;
struct lseek_args ap;
off_t pos;
ap.fd = uap->fd;
ap.offset = PAIR32TO64(off_t,uap->offset);
ap.whence = uap->whence;
error = sys_lseek(td, &ap);
/* 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)
{
struct truncate_args ap;
ap.path = uap->path;
ap.length = PAIR32TO64(off_t,uap->length);
return (sys_truncate(td, &ap));
}
int
freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
{
struct ftruncate_args ap;
ap.fd = uap->fd;
ap.length = PAIR32TO64(off_t,uap->length);
return (sys_ftruncate(td, &ap));
}
#endif /* COMPAT_FREEBSD6 */
struct sf_hdtr32 {
uint32_t headers;
int hdr_cnt;
uint32_t trailers;
int trl_cnt;
};
struct sf_hdtr_kq32 {
int kq_fd;
uint32_t kq_flags;
uint32_t kq_udata; /* 32-bit void ptr */
uint32_t kq_ident; /* 32-bit uintptr_t */
};
static int
freebsd32_do_sendfile(struct thread *td,
struct freebsd32_sendfile_args *uap, int compat)
{
struct sf_hdtr32 hdtr32;
struct sf_hdtr hdtr;
struct sf_hdtr_kq32 hdtr_kq32;
struct sf_hdtr_kq hdtr_kq;
struct uio *hdr_uio, *trl_uio;
struct iovec32 *iov32;
off_t offset;
int error;
off_t sbytes;
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;
}
if (hdtr.trailers != NULL) {
iov32 = PTRIN(hdtr32.trailers);
error = freebsd32_copyinuio(iov32,
hdtr32.trl_cnt, &trl_uio);
if (error)
goto out;
}
/*
* If SF_KQUEUE is set, then we need to also copy in
* the kqueue data after the normal hdtr set and set do_kqueue=1.
*/
if (uap->flags & SF_KQUEUE) {
error = copyin(((char *) uap->hdtr) + sizeof(hdtr32),
&hdtr_kq32,
sizeof(hdtr_kq32));
if (error != 0)
goto out;
/* 32->64 bit fields */
CP(hdtr_kq32, hdtr_kq, kq_fd);
CP(hdtr_kq32, hdtr_kq, kq_flags);
PTRIN_CP(hdtr_kq32, hdtr_kq, kq_udata);
CP(hdtr_kq32, hdtr_kq, kq_ident);
}
}
/* Call sendfile */
/* XXX stack depth! */
error = _do_sendfile(td, uap->fd, uap->s, uap->flags, compat,
offset, uap->nbytes, &sbytes, hdr_uio, trl_uio, &hdtr_kq);
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);
}
#ifdef COMPAT_43
static void
copy_ostat(struct stat *in, struct ostat32 *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);
CP(*in, *out, st_size);
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
int
freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap)
{
struct stat sb;
struct stat32 sb32;
int error;
error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
if (error)
return (error);
copy_stat(&sb, &sb32);
error = copyout(&sb32, uap->ub, sizeof (sb32));
return (error);
}
#ifdef COMPAT_43
int
ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
{
struct stat sb;
struct ostat32 sb32;
int error;
error = kern_stat(td, 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->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);
if (error)
return (error);
copy_stat(&ub, &ub32);
error = copyout(&ub32, uap->buf, sizeof(ub32));
return (error);
}
int
freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap)
{
struct stat sb;
struct stat32 sb32;
int error;
error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
if (error)
return (error);
copy_stat(&sb, &sb32);
error = copyout(&sb32, uap->ub, sizeof (sb32));
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_lstat(td, 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_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap)
{
int error, name[CTL_MAXNAME];
size_t j, oldlen;
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)
oldlen = fuword32(uap->oldlenp);
else
oldlen = 0;
error = userland_sysctl(td, name, uap->namelen,
uap->old, &oldlen, 1,
uap->new, uap->newlen, &j, SCTL_MASK32);
if (error && error != ENOMEM)
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)
{
struct timespec32 rmt32, rqt32;
struct timespec rmt, rqt;
int error;
error = copyin(uap->rqtp, &rqt32, sizeof(rqt32));
if (error)
return (error);
CP(rqt32, rqt, tv_sec);
CP(rqt32, rqt, tv_nsec);
if (uap->rmtp &&
!useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE))
return (EFAULT);
error = kern_nanosleep(td, &rqt, &rmt);
if (error && uap->rmtp) {
int error2;
CP(rmt, rmt32, tv_sec);
CP(rmt, rmt32, tv_nsec);
error2 = copyout(&rmt32, uap->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;
}
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)
{
struct cpuset_setid_args ap;
ap.which = uap->which;
ap.id = PAIR32TO64(id_t,uap->id);
ap.setid = uap->setid;
return (sys_cpuset_setid(td, &ap));
}
int
freebsd32_cpuset_getid(struct thread *td,
struct freebsd32_cpuset_getid_args *uap)
{
struct cpuset_getid_args ap;
ap.level = uap->level;
ap.which = uap->which;
ap.id = PAIR32TO64(id_t,uap->id);
ap.setid = uap->setid;
return (sys_cpuset_getid(td, &ap));
}
int
freebsd32_cpuset_getaffinity(struct thread *td,
struct freebsd32_cpuset_getaffinity_args *uap)
{
struct cpuset_getaffinity_args ap;
ap.level = uap->level;
ap.which = uap->which;
ap.id = PAIR32TO64(id_t,uap->id);
ap.cpusetsize = uap->cpusetsize;
ap.mask = uap->mask;
return (sys_cpuset_getaffinity(td, &ap));
}
int
freebsd32_cpuset_setaffinity(struct thread *td,
struct freebsd32_cpuset_setaffinity_args *uap)
{
struct cpuset_setaffinity_args ap;
ap.level = uap->level;
ap.which = uap->which;
ap.id = PAIR32TO64(id_t,uap->id);
ap.cpusetsize = uap->cpusetsize;
ap.mask = uap->mask;
return (sys_cpuset_setaffinity(td, &ap));
}
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_register(int *offset, struct sysent *new_sysent,
struct sysent *old_sysent)
{
if (*offset == NO_SYSCALL) {
int i;
for (i = 1; i < SYS_MAXSYSCALL; ++i)
if (freebsd32_sysent[i].sy_call ==
(sy_call_t *)lkmnosys)
break;
if (i == SYS_MAXSYSCALL)
return (ENFILE);
*offset = i;
} else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
return (EINVAL);
else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys)
return (EEXIST);
*old_sysent = freebsd32_sysent[*offset];
freebsd32_sysent[*offset] = *new_sysent;
return 0;
}
int
syscall32_deregister(int *offset, struct sysent *old_sysent)
{
if (*offset)
freebsd32_sysent[*offset] = *old_sysent;
return 0;
}
int
syscall32_module_handler(struct module *mod, int what, void *arg)
{
struct syscall_module_data *data = (struct syscall_module_data*)arg;
modspecific_t ms;
int error;
switch (what) {
case MOD_LOAD:
error = syscall32_register(data->offset, data->new_sysent,
&data->old_sysent);
if (error) {
/* Leave a mark so we know to safely unload below. */
data->offset = NULL;
return error;
}
ms.intval = *data->offset;
MOD_XLOCK;
module_setspecific(mod, &ms);
MOD_XUNLOCK;
if (data->chainevh)
error = data->chainevh(mod, what, data->chainarg);
return (error);
case MOD_UNLOAD:
/*
* MOD_LOAD failed, so just return without calling the
* chained handler since we didn't pass along the MOD_LOAD
* event.
*/
if (data->offset == NULL)
return (0);
if (data->chainevh) {
error = data->chainevh(mod, what, data->chainarg);
if (error)
return (error);
}
error = syscall32_deregister(data->offset, &data->old_sysent);
return (error);
default:
error = EOPNOTSUPP;
if (data->chainevh)
error = data->chainevh(mod, what, data->chainarg);
return (error);
}
}
int
syscall32_helper_register(struct syscall_helper_data *sd)
{
struct syscall_helper_data *sd1;
int error;
for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) {
error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent,
&sd1->old_sysent);
if (error != 0) {
syscall32_helper_unregister(sd);
return (error);
}
sd1->registered = 1;
}
return (0);
}
int
syscall32_helper_unregister(struct syscall_helper_data *sd)
{
struct syscall_helper_data *sd1;
for (sd1 = sd; sd1->registered != 0; sd1++) {
syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent);
sd1->registered = 0;
}
return (0);
}
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));
/*
* If we have a valid auxargs ptr, prepare some room
* on the stack.
*/
if (imgp->auxargs) {
/*
* 'AT_COUNT*2' is size for the ELF Auxargs data. This is for
* lower compatibility.
*/
imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size
: (AT_COUNT * 2);
/*
* The '+ 2' is for the null pointers at the end of each of
* the arg and env vector sets,and imgp->auxarg_size is room
* for argument of Runtime loader.
*/
vectp = (u_int32_t *) (destp - (imgp->args->argc +
imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) *
sizeof(u_int32_t));
} else {
/*
* The '+ 2' is for the null pointers at the end of each of
* the arg and env vector sets
*/
vectp = (u_int32_t *)(destp - (imgp->args->argc +
imgp->args->envc + 2) * sizeof(u_int32_t));
}
/*
* 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);
error = kern_kldstat(td, uap->fileid, &stat);
if (error != 0)
return (error);
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));
return (copyout(&stat32, uap->stat, version));
}
int
freebsd32_posix_fallocate(struct thread *td,
struct freebsd32_posix_fallocate_args *uap)
{
td->td_retval[0] = kern_posix_fallocate(td, uap->fd,
PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len));
return (0);
}
int
freebsd32_posix_fadvise(struct thread *td,
struct freebsd32_posix_fadvise_args *uap)
{
td->td_retval[0] = kern_posix_fadvise(td, uap->fd,
PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len),
uap->advice);
return (0);
}
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;
int error, flags;
switch (uap->com) {
case PROC_SPROTECT:
error = copyin(PTRIN(uap->data), &flags, sizeof(flags));
if (error)
return (error);
data = &flags;
break;
default:
return (EINVAL);
}
return (kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
uap->com, data));
}
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