/*      $NetBSD: linux32_socketcall.c,v 1.9 2014/06/21 10:23:07 maxv Exp $ */

/*-
* Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Emmanuel Dreyfus
* 4. The name of the author may not be used to endorse or promote
*    products derived from this software without specific prior written
*    permission.
*
* THIS SOFTWARE IS PROVIDED BY THE 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>
__KERNEL_RCSID(0, "$NetBSD: linux32_socketcall.c,v 1.9 2014/06/21 10:23:07 maxv Exp $");

#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/ucred.h>
#include <sys/ktrace.h>

#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>

#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_ipc.h>
#include <compat/linux/common/linux_sem.h>
#include <compat/linux/linux_syscallargs.h>

#include <compat/linux32/common/linux32_types.h>
#include <compat/linux32/common/linux32_signal.h>
#include <compat/linux32/common/linux32_machdep.h>
#include <compat/linux32/common/linux32_sysctl.h>
#include <compat/linux32/common/linux32_socketcall.h>
#include <compat/linux32/linux32_syscallargs.h>

#define sc(emul, fn) { "linux32/" #fn, sizeof (struct emul##_##fn##_args), \
       (int (*)(struct lwp *, const void *, register_t *))emul##_##fn }

static const struct {
       const char *name;
       int argsize;
       int (*syscall)(struct lwp *, const void *, register_t *);
} linux32_socketcall[LINUX32_MAX_SOCKETCALL+1] = {
       {"invalid",     -1, NULL},
       sc(linux32_sys, socket),
       sc(linux32_sys, bind),
       sc(linux32_sys, connect),
       sc(netbsd32, listen),
       sc(linux32_sys, accept),
       sc(linux32_sys, getsockname),
       sc(linux32_sys, getpeername),
       sc(linux32_sys, socketpair),
       sc(linux32_sys, send),
       sc(linux32_sys, recv),
       sc(linux32_sys, sendto),
       sc(linux32_sys, recvfrom),
       sc(netbsd32, shutdown),
       sc(linux32_sys, setsockopt),
       sc(linux32_sys, getsockopt),
       sc(linux32_sys, sendmsg),
       sc(linux32_sys, recvmsg),
};
#undef sc


int
linux32_sys_socketcall(struct lwp *l, const struct linux32_sys_socketcall_args *uap, register_t *retval)
{
       /* {
               syscallarg(int) what;
               syscallarg(netbsd32_voidp) args;
       } */
       union linux32_socketcall_args ua;
       int error;

       if (SCARG(uap, what) <= 0 || SCARG(uap, what) > LINUX32_MAX_SOCKETCALL)
               return ENOSYS;

       if ((error = copyin(SCARG_P32(uap, args), &ua,
           linux32_socketcall[SCARG(uap, what)].argsize)) != 0)
               return error;

       /* Trace the socket-call arguments as 'GIO' on fd -1 */
       ktrkuser(linux32_socketcall[SCARG(uap, what)].name, &ua,
           linux32_socketcall[SCARG(uap, what)].argsize);

       return linux32_socketcall[SCARG(uap, what)].syscall(l, &ua, retval);
}