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freebsd-dev/sys/compat/freebsd32/freebsd32_misc.c

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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/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/reboot.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/selinfo.h>
#include <sys/eventvar.h> /* Must come after sys/selinfo.h */
#include <sys/pipe.h> /* Must come after sys/selinfo.h */
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
#include <sys/thr.h>
#include <sys/unistd.h>
#include <sys/ucontext.h>
#include <sys/vnode.h>
#include <sys/wait.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#ifdef 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_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);
#if BYTE_ORDER == BIG_ENDIAN
#define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32))
#define RETVAL_HI 0
#define RETVAL_LO 1
#else
#define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32))
#define RETVAL_HI 1
#define RETVAL_LO 0
#endif
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, 0, 0,
&addr, PAGE_SIZE, FALSE, 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, 0, 0,
&start, end - start, FALSE,
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);
}
static int
freebsd32_convert_msg_in(struct mbuf **controlp)
{
struct mbuf *control = *controlp;
struct cmsghdr *cm = mtod(control, struct cmsghdr *);
void *data;
socklen_t clen = control->m_len, datalen;
int error;
error = 0;
*controlp = NULL;
while (cm != NULL) {
if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) {
error = EINVAL;
break;
}
data = FREEBSD32_CMSG_DATA(cm);
datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
*controlp = sbcreatecontrol(data, datalen, cm->cmsg_type,
cm->cmsg_level);
controlp = &(*controlp)->m_next;
if (FREEBSD32_CMSG_SPACE(datalen) < clen) {
clen -= FREEBSD32_CMSG_SPACE(datalen);
cm = (struct cmsghdr *)
((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen));
} else {
clen = 0;
cm = NULL;
}
}
m_freem(control);
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 = sockargs(&control, msg.msg_control,
msg.msg_controllen, MT_CONTROL);
if (error)
goto out;
error = freebsd32_convert_msg_in(&control);
if (error)
goto out;
}
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 = *(off_t *)(td->td_retval);
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;
};
static int
freebsd32_do_sendfile(struct thread *td,
struct freebsd32_sendfile_args *uap, int compat)
{
struct sendfile_args ap;
struct sf_hdtr32 hdtr32;
struct sf_hdtr hdtr;
struct uio *hdr_uio, *trl_uio;
struct iovec32 *iov32;
int error;
hdr_uio = trl_uio = NULL;
ap.fd = uap->fd;
ap.s = uap->s;
ap.offset = PAIR32TO64(off_t,uap->offset);
ap.nbytes = uap->nbytes;
ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */
ap.sbytes = uap->sbytes;
ap.flags = uap->flags;
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;
}
}
error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat);
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 = j32_v0.ip_number;
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_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.sigval_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, *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 = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE -
roundup(execpath_len, sizeof(char *)) -
roundup(sizeof(canary), sizeof(char *)) -
roundup(sizeof(pagesizes32), sizeof(char *)) -
roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *));
/*
* install sigcode
*/
if (szsigcode != 0)
copyout(imgp->proc->p_sysent->sv_sigcode,
((caddr_t)arginfo - szsigcode), szsigcode);
/*
* Copy the image path for the rtld.
*/
if (execpath_len != 0) {
imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len;
copyout(imgp->execpath, (void *)imgp->execpathp,
execpath_len);
}
/*
* Prepare the canary for SSP.
*/
arc4rand(canary, sizeof(canary), 0);
imgp->canary = (uintptr_t)arginfo - szsigcode - execpath_len -
sizeof(canary);
copyout(canary, (void *)imgp->canary, sizeof(canary));
imgp->canarylen = sizeof(canary);
/*
* Prepare the pagesizes array.
*/
for (i = 0; i < MAXPAGESIZES; i++)
pagesizes32[i] = (uint32_t)pagesizes[i];
imgp->pagesizes = (uintptr_t)arginfo - szsigcode - execpath_len -
roundup(sizeof(canary), sizeof(char *)) - sizeof(pagesizes32);
copyout(pagesizes32, (void *)imgp->pagesizes, sizeof(pagesizes32));
imgp->pagesizeslen = sizeof(pagesizes32);
/*
* 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, 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)
{
return (kern_posix_fallocate(td, uap->fd,
PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)));
}
int
freebsd32_posix_fadvise(struct thread *td,
struct freebsd32_posix_fadvise_args *uap)
{
return (kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset),
PAIR32TO64(off_t, uap->len), uap->advice));
}
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