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	1	/*
	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
	29
	30	#ifndef _SYSTEM_DOMAIN_H_
	31	#define _SYSTEM_DOMAIN_H_
	32
	33
	34	#include <sys/appleapiopts.h>
	35	#include <sys/cdefs.h>
	36	#include <sys/types.h>
	37
	38	#ifdef KERNEL_PRIVATE
	39	#include <sys/queue.h>
	40	#include <libkern/locks.h>
	41	#include <sys/kern_control.h>
	42	#endif /* KERNEL_PRIVATE */
	43
	44	/* Kernel Events Protocol */
	45	#define SYSPROTO_EVENT 1 /* kernel events protocol */
	46
	47	/* Kernel Control Protocol */
	48	#define SYSPROTO_CONTROL 2 /* kernel control protocol */
	49	#define AF_SYS_CONTROL 2 /* corresponding sub address type */
	50
	51	/* System family socket address */
	52	struct sockaddr_sys
	53	{
	54	u_char ss_len; /* sizeof(struct sockaddr_sys) */
	55	u_char ss_family; /* AF_SYSTEM */
	56	u_int16_t ss_sysaddr; /* protocol address in AF_SYSTEM */
	57	u_int32_t ss_reserved[7]; /* reserved to the protocol use */
	58	};
	59
	60
	61	#ifdef KERNEL_PRIVATE
	62
	63	/*
	64	* internal structure maintained for each register controller
	65	*/
	66	struct ctl_cb;
	67	struct socket;
	68
	69	struct kctl
	70	{
	71	TAILQ_ENTRY(kctl) next; /* controller chain */
	72
	73	/* controller information provided when registering */
	74	char name[MAX_KCTL_NAME]; /* unique nke identifier, provided by DTS */
	75	u_int32_t id;
	76	u_int32_t reg_unit;
	77
	78	/* misc communication information */
	79	u_int32_t flags; /* support flags */
	80	u_int32_t recvbufsize; /* request more than the default buffer size */
	81	u_int32_t sendbufsize; /* request more than the default buffer size */
	82
	83	/* Dispatch functions */
	84	ctl_connect_func connect; /* Make contact */
	85	ctl_disconnect_func disconnect; /* Break contact */
	86	ctl_send_func send; /* Send data to nke */
	87	ctl_setopt_func setopt; /* set kctl configuration */
	88	ctl_getopt_func getopt; /* get kctl configuration */
	89
	90	TAILQ_HEAD(, ctl_cb) kcb_head;
	91	u_int32_t lastunit;
	92	};
	93
	94	struct ctl_cb {
	95	TAILQ_ENTRY(ctl_cb) next; /* controller chain */
	96	lck_mtx_t *mtx;
	97	struct socket so; / controlling socket */
	98	struct kctl kctl; / back pointer to controller */
	99	void *userdata;
	100	u_int32_t unit;
	101	u_int32_t usecount;
	102	};
	103
	104
	105	extern struct domain systemdomain;
	106
	107	/* built in system domain protocols init function */
	108	__BEGIN_DECLS
	109	int kern_event_init(void) __attribute__((section("__TEXT, initcode")));
	110	int kern_control_init(void) __attribute__((section("__TEXT, initcode")));
	111	__END_DECLS
	112
	113	#endif /* KERNEL_PRIVATE */
	114
	115	#endif /* _SYSTEM_DOMAIN_H_ */
	116
	117