usr/src/lib/libc/port/sys/sidsys.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 /*
  23  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*
  28  * UID/SID mapping system call entries.
  29  */
  30
  31 #include "lint.h"
  32 #include <sys/sid.h>
  33 #include <sys/syscall.h>
  34
  35
  36 int
  37 allocids(int flag, int nuids, uid_t *suid, int ngids, gid_t *sgid)
  38 {
  39         sysret_t rv;
  40         int e;
  41
  42         e = __systemcall(&rv, SYS_sidsys, SIDSYS_ALLOC_IDS, flag, nuids, ngids);
  43
  44         if (e != 0) {
  45                 (void) __set_errno(e);
  46                 return (-1);
  47         }
  48
  49         if (suid != NULL)
  50                 *suid = (uid_t)rv.sys_rval1;
  51         if (sgid != NULL)
  52                 *sgid = (gid_t)rv.sys_rval2;
  53
  54         return (0);
  55 }
  56
  57 int
  58 __idmap_reg(int fd)
  59 {
  60         return (syscall(SYS_sidsys, SIDSYS_IDMAP_REG, fd));
  61 }
  62
  63 int
  64 __idmap_unreg(int fd)
  65 {
  66         return (syscall(SYS_sidsys, SIDSYS_IDMAP_UNREG, fd));
  67 }
  68
  69 int
  70 __idmap_flush_kcache(void)
  71 {
  72         return (syscall(SYS_sidsys, SIDSYS_IDMAP_FLUSH_KCACHE));
  73 }