/*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <sys/param.h>
/* prototypes not exported by osfmk/console. */
extern void panic_dialog_test( void );
+extern void noroot_icon_test(void);
extern int panic_dialog_set_image( const unsigned char * ptr, unsigned int size );
extern void panic_dialog_get_image( unsigned char ** ptr, unsigned int * size );
/* make the compiler happy */
-extern int sysctl_dopanicinfo(int *, u_int, user_addr_t, size_t *, user_addr_t, size_t, struct proc *);
+static int sysctl_dopanicinfo SYSCTL_HANDLER_ARGS;
#define PANIC_IMAGE_SIZE_LIMIT (32 * 4096) /* 128K - Maximum amount of memory consumed for the panic UI */
-#define KERN_PANICINFO_TEST (KERN_PANICINFO_IMAGE+2) /* Allow the panic UI to be tested by root without causing a panic */
/* Local data */
static int image_size_limit = PANIC_IMAGE_SIZE_LIMIT;
-__private_extern__ int
-sysctl_dopanicinfo(name, namelen, oldp, oldlenp, newp, newlen, p)
- int *name;
- u_int namelen;
- user_addr_t oldp;
- size_t *oldlenp;
- user_addr_t newp;
- size_t newlen;
- struct proc *p;
+/* XXX Should be STATIC for dtrace debugging.. */
+static int
+sysctl_dopanicinfo SYSCTL_HANDLER_ARGS
{
+ __unused int cmd = oidp->oid_arg2; /* subcommand*/
+ int *name = arg1; /* oid element argument vector */
+ int namelen = arg2; /* number of oid element arguments */
+ user_addr_t oldp = req->oldptr; /* user buffer copy out address */
+ size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
+ user_addr_t newp = req->newptr; /* user buffer copy in address */
+ size_t newlen = req->newlen; /* user buffer copy in size */
int error = 0;
+ proc_t p = current_proc();
+
vm_offset_t newimage = (vm_offset_t )NULL;
kern_return_t kret;
unsigned char * prev_image_ptr;
unsigned int prev_image_size;
-
/* all sysctl names at this level are terminal */
if (namelen != 1)
return (ENOTDIR); /* overloaded */
- if ( (error = proc_suser(p)) ) /* must be super user to muck with image */
+ /* must be super user to muck with image */
+ if ( (error = proc_suser(p)) )
return (error);
switch (name[0]) {
case KERN_PANICINFO_TEST:
panic_dialog_test();
- return (0);
+ break;
+
+ case KERN_PANICINFO_NOROOT_TEST:
+ printf("Testing noroot icon \n");
+
+ noroot_icon_test();
+ break;
case KERN_PANICINFO_MAXSIZE:
error = sysctl_int(oldp, oldlenp, newp, newlen, &image_size_limit);
- return (error);
+ break;
case KERN_PANICINFO_IMAGE:
if ( newp != USER_ADDR_NULL ) {
/* check the length of the incoming image before allocating space for it. */
- if ( newlen > (size_t)image_size_limit )
- return (ENOMEM);
+ if ( newlen > (size_t)image_size_limit ) {
+ error = ENOMEM;
+ break;
+ }
/* allocate some kernel wired memory for the new image */
- kret = kmem_alloc(kernel_map, &newimage, (vm_size_t)round_page_32(newlen));
+ kret = kmem_alloc(kernel_map, &newimage, (vm_size_t)round_page(newlen));
if (kret != KERN_SUCCESS) {
switch (kret) {
error = EPERM;
break;
}
-
- return (error);
+ break;
}
/* copy the image in from user space */
/* free the wired memory used by the previous image */
if ( prev_image_ptr != NULL ) {
- (void)kmem_free(kernel_map, (vm_offset_t) prev_image_ptr, (vm_size_t)round_page_32(prev_image_size));
- printf("Panic UI memory freed (%d)\n", round_page_32(prev_image_size));
+ (void)kmem_free(kernel_map, (vm_offset_t) prev_image_ptr, (vm_size_t)round_page(prev_image_size));
+ printf("Panic UI memory freed (%p)\n", (void *)round_page(prev_image_size));
}
}
- return (0);
+ break;
errout:
if ( newimage != (vm_offset_t )NULL )
- (void)kmem_free(kernel_map, newimage, (vm_size_t)round_page_32(newlen));
+ (void)kmem_free(kernel_map, newimage, (vm_size_t)round_page(newlen));
- return (error);
+ break;
}
+
+ /* adjust index so we return the right required/consumed amount */
+ if (!error)
+ req->oldidx += req->oldlen;
+
+ return (error);
}
+SYSCTL_PROC(_kern, KERN_PANICINFO, panicinfo, CTLTYPE_NODE|CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
+ 0, /* Pointer argument (arg1) */
+ 0, /* Integer argument (arg2) */
+ sysctl_dopanicinfo, /* Handler function */
+ NULL, /* Data pointer */
+ "");
projects / apple / xnu.git / blobdiff