bsd/kern/kern_xxx.c

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1982, 1986, 1989, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
  56  */
  57
  58 #include <cputypes.h>
  59
  60 #include <sys/param.h>
  61 #include <sys/systm.h>
  62 #include <sys/kernel.h>
  63 #include <sys/proc.h>
  64 #include <sys/reboot.h>
  65 #include <sys/vm.h>
  66 #include <sys/sysctl.h>
  67 #include <sys/buf.h>
  68
  69 #include <bsm/audit_kernel.h>
  70
  71 #include <sys/mount.h>
  72
  73 #if COMPAT_43
  74 /* ARGSUSED */
  75 int
  76 ogethostid(p, uap, retval)
  77 struct proc *p;
  78 void *uap;
  79 register_t *retval;
  80 {
  81
  82         *retval = hostid;
  83         return 0;
  84 }
  85
  86 struct osethostid_args {
  87         long hostid;
  88 };
  89 /* ARGSUSED */
  90 int
  91 osethostid(p, uap, retval)
  92 struct proc *p;
  93 register struct osethostid_args *uap;
  94 register_t *retval;
  95 {
  96         int error;
  97
  98         if (error = suser(p->p_ucred, &p->p_acflag))
  99                 return (error);
 100         hostid = uap->hostid;
 101         return (0);
 102
 103 }
 104
 105 struct ogethostname_args {
 106                 char    *hostname;
 107                 u_int   len;
 108 };
 109 /* ARGSUSED */
 110 int
 111 ogethostname(p, uap, retval)
 112 struct proc *p;
 113 register struct ogethostname_args *uap;
 114 register_t *retval;
 115 {
 116         int name;
 117
 118         name = KERN_HOSTNAME;
 119
 120         return (kern_sysctl(&name, 1, uap->hostname, &uap->len, 0, 0));
 121 }
 122
 123 struct osethostname_args {
 124                 char    *hostname;
 125                 u_int   len;
 126 };
 127 /* ARGSUSED */
 128 int
 129 osethostname(p, uap, retval)
 130 struct proc *p;
 131 register struct osethostname_args *uap;
 132 register_t *retval;
 133 {
 134         int name;
 135         int error;
 136
 137         if (error = suser(p->p_ucred, &p->p_acflag))
 138                 return (error);
 139
 140         name = KERN_HOSTNAME;
 141         return (kern_sysctl(&name, 1, 0, 0, uap->hostname,
 142             uap->len));
 143 }
 144
 145 struct ogetdomainname_args {
 146                 char    *domainname;
 147                 int     len;
 148 };
 149 /* ARGSUSED */
 150 int
 151 ogetdomainname(p, uap, retval)
 152 struct proc *p;
 153 register struct ogetdomainname_args *uap;
 154 register_t *retval;
 155 {
 156         int name;
 157
 158         name = KERN_DOMAINNAME;
 159         return (kern_sysctl(&name, 1, uap->domainname,
 160             &uap->len, 0, 0));
 161 }
 162
 163 struct osetdomainname_args {
 164                 char    *domainname;
 165                 u_int   len;
 166 };
 167 /* ARGSUSED */
 168 int
 169 osetdomainname(p, uap, retval)
 170 struct proc *p;
 171 register struct osetdomainname_args *uap;
 172 register_t *retval;
 173 {
 174         int name;
 175         int error;
 176
 177         if (error = suser(p->p_ucred, &p->p_acflag))
 178                 return (error);
 179         name = KERN_DOMAINNAME;
 180         return (kern_sysctl(&name, 1, 0, 0, uap->domainname,
 181             uap->len));
 182 }
 183 #endif /* COMPAT_43 */
 184
 185 struct reboot_args {
 186                 int     opt;
 187                 char    *command;
 188 };
 189
 190 reboot(p, uap, retval)
 191 struct proc *p;
 192 register struct reboot_args *uap;
 193 register_t *retval;
 194 {
 195         char command[64];
 196         int error;
 197         int dummy=0;
 198
 199         AUDIT_ARG(cmd, uap->opt);
 200         command[0] = '\0';
 201
 202         if (error = suser(p->p_cred->pc_ucred, &p->p_acflag))
 203                 return(error);
 204
 205         if (uap->opt & RB_COMMAND)
 206                 error = copyinstr((void *)uap->command,
 207                                         (void *)command, sizeof(command), (size_t *)&dummy);
 208         if (!error) {
 209                 SET(p->p_flag, P_REBOOT);       /* No more signals for this proc */
 210                 boot(RB_BOOT, uap->opt, command);
 211         }
 212         return(error);
 213 }
 214