kernel/syscall/brandsys.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <sys/brand.h>
  29 #include <sys/systm.h>
  30 #include <sys/types.h>
  31 #include <sys/zone.h>
  32
  33 /*
  34  * brand(2) system call.
  35  */
  36 int64_t
  37 brandsys(int cmd, uintptr_t arg1, uintptr_t arg2, uintptr_t arg3,
  38     uintptr_t arg4, uintptr_t arg5, uintptr_t arg6)
  39 {
  40         struct proc *p = curthread->t_procp;
  41         int64_t rval = 0;
  42         int err;
  43
  44         /*
  45          * The brandsys system call can only be executed from inside a
  46          * branded zone.
  47          */
  48         if (INGLOBALZONE(p) || !ZONE_IS_BRANDED(p->p_zone))
  49                 return (set_errno(ENOSYS));
  50
  51         if ((err = ZBROP(p->p_zone)->b_brandsys(cmd, &rval, arg1, arg2, arg3,
  52             arg4, arg5, arg6)) != 0)
  53                 return (set_errno(err));
  54
  55         return (rval);
  56 }