xnu-4570.41.2.tar.gz

[apple/xnu.git] / bsd / kern / kern_xxx.c

diff --git a/bsd/kern/kern_xxx.c b/bsd/kern/kern_xxx.c
index fd916dbf4e3c0ba421f35c63d2bdf893de79e171..c922c1641894ee97851121a48153fbb060e48531 100644 (file)
--- a/bsd/kern/kern_xxx.c
+++ b/bsd/kern/kern_xxx.c
@@ -1,31 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

- * This file contains Original Code and/or Modifications of Original Code 
- * as defined in and that are subject to the Apple Public Source License 
- * Version 2.0 (the 'License'). You may not use this file except in 
- * compliance with the License.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
- *
- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
- *
- * The Original Code and all software distributed under the License are 
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and

  * limitations under the License.
  * limitations under the License.

- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*


@@ -62,8 +60,12 @@
  *
  *     @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
  */
  *
  *     @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
  */

-
-#include <cputypes.h> 
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */

 
 #include <sys/param.h>
 #include <sys/systm.h>
 
 #include <sys/param.h>
 #include <sys/systm.h>


@@ -75,32 +77,83 @@
 #include <sys/sysctl.h>
 #include <sys/buf.h>
 
 #include <sys/sysctl.h>
 #include <sys/buf.h>
 

-#include <bsm/audit_kernel.h>
+#include <security/audit/audit.h>

 
 #include <sys/mount_internal.h>
 #include <sys/sysproto.h>
 
 #include <sys/mount_internal.h>
 #include <sys/sysproto.h>

+#if CONFIG_MACF
+#include <security/mac_framework.h>
+#endif
+
+int pshm_cache_purge_all(proc_t p);
+int psem_cache_purge_all(proc_t p);

 
 int
 
 int

-reboot(struct proc *p, register struct reboot_args *uap, __unused register_t *retval)
+reboot(struct proc *p, struct reboot_args *uap, __unused int32_t *retval)

 {
 {

-       char command[64];
-       int error;
-       int dummy=0;
+       char message[256];
+       int error=0;
+       size_t dummy=0;
+#if CONFIG_MACF
+       kauth_cred_t my_cred;
+#endif

 
        AUDIT_ARG(cmd, uap->opt);
 
 
        AUDIT_ARG(cmd, uap->opt);
 

-       command[0] = '\0';
+       message[0] = '\0';
+
+       if ((error = suser(kauth_cred_get(), &p->p_acflag))) {
+#if (DEVELOPMENT || DEBUG)
+               /* allow non-root user to call panic on dev/debug kernels */
+               if (!(uap->opt & RB_PANIC))
+                       return error;
+#else
+               return error;
+#endif
+       }

 
 

-       if ((error = suser(kauth_cred_get(), &p->p_acflag)))
-               return(error);  
-       

        if (uap->opt & RB_COMMAND)
        if (uap->opt & RB_COMMAND)

-               error = copyinstr(uap->command,
-                                       (void *)command, sizeof(command), (size_t *)&dummy);
+                return ENOSYS;
+
+        if (uap->opt & RB_PANIC) {
+               error = copyinstr(uap->command, (void *)message, sizeof(message), (size_t *)&dummy);
+        }
+
+#if CONFIG_MACF
+#if (DEVELOPMENT || DEBUG)
+        if (uap->opt & RB_PANIC) {
+               /* on dev/debug kernels: allow anyone to call panic */
+               goto skip_cred_check;
+       }
+#endif
+       if (error)
+               return (error);
+       my_cred = kauth_cred_proc_ref(p);
+       error = mac_system_check_reboot(my_cred, uap->opt);
+       kauth_cred_unref(&my_cred);
+#if (DEVELOPMENT || DEBUG)
+skip_cred_check:
+#endif
+#endif

        if (!error) {
        if (!error) {

-               SET(p->p_flag, P_REBOOT);       /* No more signals for this proc */
-               boot(RB_BOOT, uap->opt, command);
+               OSBitOrAtomic(P_REBOOT, &p->p_flag);  /* No more signals for this proc */
+               error = reboot_kernel(uap->opt, message);

        }
        return(error);
 }
 
        }
        return(error);
 }
 

+int
+usrctl(struct proc *p, __unused struct usrctl_args *uap, __unused int32_t *retval)
+{
+       if (p != initproc) {
+               return EPERM;
+       }
+
+       int error = 0;
+       error = pshm_cache_purge_all(p);
+       if (error)
+               return error;
+
+       error = psem_cache_purge_all(p);
+       return error;
+}