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NetBSD/sys/compat/mach/mach_clock.h

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Enforce good santity checks with Mach messages sizes: 1) make sure Mach servers will not work on data beyond the end of the request message buffer. 2) make sure that on copying out the reply message buffer, we will not leak kernel data located after the buffer. 3) make sure that the server will not overwrite memory beyond the end of the reply message buffer. That check is the responsability of the server, there is just a DIAGNOSTIC test to check everything is in good shape. All currently implemented servers in NetBSD have been modified to check for this condition While we are here, build the mach services table (formerly in mach_namemap.c) and the services prototypes automatically from mach_services.master, just as this is done for system calls. The next step would be to fold the message formats in the mach_services.master file, but this tends to be difficult, as some messages are quite long and complex.
2003-11-13 16:40:39 +03:00
/* $NetBSD: mach_clock.h,v 1.6 2003/11/13 13:40:39 manu Exp $ */
Add thread_policy and clock_get_time mach traps. Implement mach_sys_clock_sleep_trap. This makes sleep(3) emulation working.
2002-11-26 11:10:14 +03:00
/*-
Enforce good santity checks with Mach messages sizes: 1) make sure Mach servers will not work on data beyond the end of the request message buffer. 2) make sure that on copying out the reply message buffer, we will not leak kernel data located after the buffer. 3) make sure that the server will not overwrite memory beyond the end of the reply message buffer. That check is the responsability of the server, there is just a DIAGNOSTIC test to check everything is in good shape. All currently implemented servers in NetBSD have been modified to check for this condition While we are here, build the mach services table (formerly in mach_namemap.c) and the services prototypes automatically from mach_services.master, just as this is done for system calls. The next step would be to fold the message formats in the mach_services.master file, but this tends to be difficult, as some messages are quite long and complex.
2003-11-13 16:40:39 +03:00
* Copyright (c) 2002-2003 The NetBSD Foundation, Inc.
Add thread_policy and clock_get_time mach traps. Implement mach_sys_clock_sleep_trap. This makes sleep(3) emulation working.
2002-11-26 11:10:14 +03:00
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACH_CLOCK_H_
#define _MACH_CLOCK_H_
#include <sys/types.h>
#include <sys/param.h>
#include <sys/signal.h>
#include <sys/proc.h>
#include <compat/mach/mach_types.h>
#include <compat/mach/mach_message.h>
/* clock_get_time */
#define MACH_TIME_ABSOLUTE 0x00
#define MACH_TIME_RELATIVE 0x01
typedef struct {
unsigned int tv_sec;
int tv_nsec;
} mach_timespec_t;
typedef struct {
mach_msg_header_t req_msgh;
} mach_clock_get_time_request_t;
typedef struct {
mach_msg_header_t rep_msgh;
mach_ndr_record_t rep_ndr;
mach_kern_return_t rep_retval;
mach_timespec_t rep_cur_time;
mach_msg_trailer_t rep_trailer;
} mach_clock_get_time_reply_t;
#endif /* _MACH_CLOCK_H_ */