[deliverable/linux.git] / drivers / staging / lustre / include / linux / libcfs / libcfs_ioctl.h

/*
 * GPL HEADER START
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License version 2 for more details (a copy is included
 * in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; If not, see
 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 * GPL HEADER END
 */
/*
 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 */
/*
 * This file is part of Lustre, http://www.lustre.org/
 * Lustre is a trademark of Sun Microsystems, Inc.
 *
 * libcfs/include/libcfs/libcfs_ioctl.h
 *
 * Low-level ioctl data structures. Kernel ioctl functions declared here,
 * and user space functions are in libcfs/util/ioctl.h.
 *
 */

#ifndef __LIBCFS_IOCTL_H__
#define __LIBCFS_IOCTL_H__

#define LIBCFS_IOCTL_VERSION	0x0001000a
#define LIBCFS_IOCTL_VERSION2	0x0001000b

struct libcfs_ioctl_hdr {
	__u32 ioc_len;
	__u32 ioc_version;
};

/** max size to copy from userspace */
#define LIBCFS_IOC_DATA_MAX	(128 * 1024)

struct libcfs_ioctl_data {
	struct libcfs_ioctl_hdr ioc_hdr;

	__u64 ioc_nid;
	__u64 ioc_u64[1];

	__u32 ioc_flags;
	__u32 ioc_count;
	__u32 ioc_net;
	__u32 ioc_u32[7];

	__u32 ioc_inllen1;
	char *ioc_inlbuf1;
	__u32 ioc_inllen2;
	char *ioc_inlbuf2;

	__u32 ioc_plen1; /* buffers in userspace */
	void __user *ioc_pbuf1;
	__u32 ioc_plen2; /* buffers in userspace */
	void __user *ioc_pbuf2;

	char ioc_bulk[0];
};

#define ioc_priority ioc_u32[0]

struct libcfs_debug_ioctl_data {
	struct libcfs_ioctl_hdr hdr;
	unsigned int subs;
	unsigned int debug;
};

#define LIBCFS_IOC_INIT(data)			   \
do {						    \
	memset(&data, 0, sizeof(data));		 \
	data.ioc_version = LIBCFS_IOCTL_VERSION;	\
	data.ioc_len = sizeof(data);		    \
} while (0)

struct libcfs_ioctl_handler {
	struct list_head item;
	int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
};

#define DECLARE_IOCTL_HANDLER(ident, func)		      \
	struct libcfs_ioctl_handler ident = {		   \
		/* .item = */ LIST_HEAD_INIT(ident.item),   \
		/* .handle_ioctl = */ func		      \
	}

/* FIXME check conflict with lustre_lib.h */
#define LIBCFS_IOC_DEBUG_MASK	     _IOWR('f', 250, long)

#define IOC_LIBCFS_TYPE		   'e'
#define IOC_LIBCFS_MIN_NR		 30
/* libcfs ioctls */
#define IOC_LIBCFS_PANIC		   _IOWR('e', 30, long)
#define IOC_LIBCFS_CLEAR_DEBUG	     _IOWR('e', 31, long)
#define IOC_LIBCFS_MARK_DEBUG	      _IOWR('e', 32, long)
#define IOC_LIBCFS_MEMHOG		  _IOWR('e', 36, long)
/* lnet ioctls */
#define IOC_LIBCFS_GET_NI		  _IOWR('e', 50, long)
#define IOC_LIBCFS_FAIL_NID		_IOWR('e', 51, long)
#define IOC_LIBCFS_NOTIFY_ROUTER	   _IOWR('e', 55, long)
#define IOC_LIBCFS_UNCONFIGURE	     _IOWR('e', 56, long)
/*	#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, long) */
#define IOC_LIBCFS_LNET_DIST	       _IOWR('e', 58, long)
#define IOC_LIBCFS_CONFIGURE	       _IOWR('e', 59, long)
#define IOC_LIBCFS_TESTPROTOCOMPAT	 _IOWR('e', 60, long)
#define IOC_LIBCFS_PING		    _IOWR('e', 61, long)
/*	#define IOC_LIBCFS_DEBUG_PEER	      _IOWR('e', 62, long) */
#define IOC_LIBCFS_LNETST		  _IOWR('e', 63, long)
#define	IOC_LIBCFS_LNET_FAULT		_IOWR('e', 64, long)
/* lnd ioctls */
#define IOC_LIBCFS_REGISTER_MYNID	  _IOWR('e', 70, long)
#define IOC_LIBCFS_CLOSE_CONNECTION	_IOWR('e', 71, long)
#define IOC_LIBCFS_PUSH_CONNECTION	 _IOWR('e', 72, long)
#define IOC_LIBCFS_GET_CONN		_IOWR('e', 73, long)
#define IOC_LIBCFS_DEL_PEER		_IOWR('e', 74, long)
#define IOC_LIBCFS_ADD_PEER		_IOWR('e', 75, long)
#define IOC_LIBCFS_GET_PEER		_IOWR('e', 76, long)
/* ioctl 77 is free for use */
#define IOC_LIBCFS_ADD_INTERFACE	   _IOWR('e', 78, long)
#define IOC_LIBCFS_DEL_INTERFACE	   _IOWR('e', 79, long)
#define IOC_LIBCFS_GET_INTERFACE	   _IOWR('e', 80, long)

/*
 * DLC Specific IOCTL numbers.
 * In order to maintain backward compatibility with any possible external
 * tools which might be accessing the IOCTL numbers, a new group of IOCTL
 * number have been allocated.
 */
#define IOCTL_CONFIG_SIZE		struct lnet_ioctl_config_data
#define IOC_LIBCFS_ADD_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 81, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_DEL_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 82, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_GET_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 83, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_ADD_NET		_IOWR(IOC_LIBCFS_TYPE, 84, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_DEL_NET		_IOWR(IOC_LIBCFS_TYPE, 85, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_GET_NET		_IOWR(IOC_LIBCFS_TYPE, 86, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_CONFIG_RTR		_IOWR(IOC_LIBCFS_TYPE, 87, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_ADD_BUF		_IOWR(IOC_LIBCFS_TYPE, 88, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_GET_BUF		_IOWR(IOC_LIBCFS_TYPE, 89, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_GET_PEER_INFO	_IOWR(IOC_LIBCFS_TYPE, 90, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_GET_LNET_STATS	_IOWR(IOC_LIBCFS_TYPE, 91, IOCTL_CONFIG_SIZE)
#define IOC_LIBCFS_MAX_NR		91

static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
{
	int len = sizeof(*data);

	len += cfs_size_round(data->ioc_inllen1);
	len += cfs_size_round(data->ioc_inllen2);
	return len;
}

static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
{
	if (data->ioc_hdr.ioc_len > (1 << 30)) {
		CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
		return 1;
	}
	if (data->ioc_inllen1 > (1<<30)) {
		CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
		return 1;
	}
	if (data->ioc_inllen2 > (1<<30)) {
		CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
		return 1;
	}
	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
		CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
		return 1;
	}
	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
		CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
		return 1;
	}
	if (data->ioc_pbuf1 && !data->ioc_plen1) {
		CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
		return 1;
	}
	if (data->ioc_pbuf2 && !data->ioc_plen2) {
		CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
		return 1;
	}
	if (data->ioc_plen1 && !data->ioc_pbuf1) {
		CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
		return 1;
	}
	if (data->ioc_plen2 && !data->ioc_pbuf2) {
		CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
		return 1;
	}
	if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) {
		CERROR("LIBCFS ioctl: packlen != ioc_len\n");
		return 1;
	}
	if (data->ioc_inllen1 &&
	    data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
		CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
		return 1;
	}
	if (data->ioc_inllen2 &&
	    data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
			   data->ioc_inllen2 - 1] != '\0') {
		CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
		return 1;
	}
	return 0;
}

int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
			 const struct libcfs_ioctl_hdr __user *uparam);
int libcfs_ioctl_popdata(void __user *arg, void *buf, int size);
int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);

#endif /* __LIBCFS_IOCTL_H__ */
Commit	Line	Data
d7e09d03 PT	1	/*
	2	* GPL HEADER START
	3	*
	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 only,
	8	* as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License version 2 for more details (a copy is included
	14	* in the LICENSE file that accompanied this code).
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* version 2 along with this program; If not, see
	18	* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
	19	*
	20	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
	21	* CA 95054 USA or visit www.sun.com if you need additional information or
	22	* have any questions.
	23	*
	24	* GPL HEADER END
	25	*/
	26	/*
	27	* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
	28	* Use is subject to license terms.
	29	*/
	30	/*
	31	* This file is part of Lustre, http://www.lustre.org/
	32	* Lustre is a trademark of Sun Microsystems, Inc.
	33	*
	34	* libcfs/include/libcfs/libcfs_ioctl.h
	35	*
	36	* Low-level ioctl data structures. Kernel ioctl functions declared here,
4801919d	37	* and user space functions are in libcfs/util/ioctl.h.
d7e09d03 PT	38	*
	39	*/
	40
	41	#ifndef __LIBCFS_IOCTL_H__
	42	#define __LIBCFS_IOCTL_H__
	43
2e9a51bd AS	44	#define LIBCFS_IOCTL_VERSION 0x0001000a
2e9a51bd AS	45	#define LIBCFS_IOCTL_VERSION2 0x0001000b
d7e09d03	46
12909327	47	struct libcfs_ioctl_hdr {
d7e09d03 PT	48	__u32 ioc_len;
d7e09d03 PT	49	__u32 ioc_version;
12909327 AS	50	};
12909327 AS	51
ae664e82 LZ	52	/** max size to copy from userspace */
	53	#define LIBCFS_IOC_DATA_MAX (128 * 1024)
	54
12909327 AS	55	struct libcfs_ioctl_data {
12909327 AS	56	struct libcfs_ioctl_hdr ioc_hdr;
d7e09d03 PT	57
	58	__u64 ioc_nid;
	59	__u64 ioc_u64[1];
	60
	61	__u32 ioc_flags;
	62	__u32 ioc_count;
	63	__u32 ioc_net;
	64	__u32 ioc_u32[7];
	65
	66	__u32 ioc_inllen1;
	67	char *ioc_inlbuf1;
	68	__u32 ioc_inllen2;
	69	char *ioc_inlbuf2;
	70
	71	__u32 ioc_plen1; /* buffers in userspace */
33ab3abc	72	void __user *ioc_pbuf1;
d7e09d03	73	__u32 ioc_plen2; /* buffers in userspace */
33ab3abc	74	void __user *ioc_pbuf2;
d7e09d03 PT	75
	76	char ioc_bulk[0];
	77	};
	78
e75fb87f	79	#define ioc_priority ioc_u32[0]
d7e09d03	80
6606a77f	81	struct libcfs_debug_ioctl_data {
d7e09d03 PT	82	struct libcfs_ioctl_hdr hdr;
	83	unsigned int subs;
	84	unsigned int debug;
	85	};
	86
	87	#define LIBCFS_IOC_INIT(data) \
	88	do { \
	89	memset(&data, 0, sizeof(data)); \
	90	data.ioc_version = LIBCFS_IOCTL_VERSION; \
	91	data.ioc_len = sizeof(data); \
	92	} while (0)
	93
d7e09d03 PT	94	struct libcfs_ioctl_handler {
d7e09d03 PT	95	struct list_head item;
12909327	96	int (handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr hdr);
d7e09d03 PT	97	};
	98
	99	#define DECLARE_IOCTL_HANDLER(ident, func) \
	100	struct libcfs_ioctl_handler ident = { \
	101	/* .item = */ LIST_HEAD_INIT(ident.item), \
	102	/* .handle_ioctl = */ func \
	103	}
	104
d7e09d03 PT	105	/* FIXME check conflict with lustre_lib.h */
	106	#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long)
	107
d7e09d03 PT	108	#define IOC_LIBCFS_TYPE 'e'
	109	#define IOC_LIBCFS_MIN_NR 30
	110	/* libcfs ioctls */
6be96847 PT	111	#define IOC_LIBCFS_PANIC _IOWR('e', 30, long)
	112	#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long)
	113	#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long)
6be96847	114	#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long)
d7e09d03	115	/* lnet ioctls */
6be96847 PT	116	#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long)
6be96847 PT	117	#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long)
6be96847 PT	118	#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long)
6be96847 PT	119	#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long)
ee11f922	120	/* #define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long) */
6be96847 PT	121	#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long)
	122	#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long)
	123	#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long)
	124	#define IOC_LIBCFS_PING _IOWR('e', 61, long)
71c36dd7	125	/* #define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long) */
6be96847	126	#define IOC_LIBCFS_LNETST _IOWR('e', 63, long)
0fbbced2	127	#define IOC_LIBCFS_LNET_FAULT _IOWR('e', 64, long)
d7e09d03	128	/* lnd ioctls */
6be96847 PT	129	#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long)
	130	#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long)
	131	#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long)
	132	#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long)
	133	#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long)
	134	#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long)
	135	#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long)
f57081a5	136	/* ioctl 77 is free for use */
6be96847 PT	137	#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long)
	138	#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long)
	139	#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long)
d7e09d03	140
2e9a51bd AS	141	/*
	142	* DLC Specific IOCTL numbers.
	143	* In order to maintain backward compatibility with any possible external
	144	* tools which might be accessing the IOCTL numbers, a new group of IOCTL
	145	* number have been allocated.
	146	*/
	147	#define IOCTL_CONFIG_SIZE struct lnet_ioctl_config_data
	148	#define IOC_LIBCFS_ADD_ROUTE _IOWR(IOC_LIBCFS_TYPE, 81, IOCTL_CONFIG_SIZE)
	149	#define IOC_LIBCFS_DEL_ROUTE _IOWR(IOC_LIBCFS_TYPE, 82, IOCTL_CONFIG_SIZE)
	150	#define IOC_LIBCFS_GET_ROUTE _IOWR(IOC_LIBCFS_TYPE, 83, IOCTL_CONFIG_SIZE)
	151	#define IOC_LIBCFS_ADD_NET _IOWR(IOC_LIBCFS_TYPE, 84, IOCTL_CONFIG_SIZE)
	152	#define IOC_LIBCFS_DEL_NET _IOWR(IOC_LIBCFS_TYPE, 85, IOCTL_CONFIG_SIZE)
	153	#define IOC_LIBCFS_GET_NET _IOWR(IOC_LIBCFS_TYPE, 86, IOCTL_CONFIG_SIZE)
	154	#define IOC_LIBCFS_CONFIG_RTR _IOWR(IOC_LIBCFS_TYPE, 87, IOCTL_CONFIG_SIZE)
	155	#define IOC_LIBCFS_ADD_BUF _IOWR(IOC_LIBCFS_TYPE, 88, IOCTL_CONFIG_SIZE)
	156	#define IOC_LIBCFS_GET_BUF _IOWR(IOC_LIBCFS_TYPE, 89, IOCTL_CONFIG_SIZE)
	157	#define IOC_LIBCFS_GET_PEER_INFO _IOWR(IOC_LIBCFS_TYPE, 90, IOCTL_CONFIG_SIZE)
	158	#define IOC_LIBCFS_GET_LNET_STATS _IOWR(IOC_LIBCFS_TYPE, 91, IOCTL_CONFIG_SIZE)
	159	#define IOC_LIBCFS_MAX_NR 91
d7e09d03 PT	160
	161	static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
	162	{
	163	int len = sizeof(*data);
a393fd54	164
d7e09d03 PT	165	len += cfs_size_round(data->ioc_inllen1);
	166	len += cfs_size_round(data->ioc_inllen2);
	167	return len;
	168	}
	169
12909327	170	static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
d7e09d03	171	{
12909327	172	if (data->ioc_hdr.ioc_len > (1 << 30)) {
a393fd54	173	CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
d7e09d03 PT	174	return 1;
	175	}
	176	if (data->ioc_inllen1 > (1<<30)) {
a393fd54	177	CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
d7e09d03 PT	178	return 1;
	179	}
	180	if (data->ioc_inllen2 > (1<<30)) {
a393fd54	181	CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
d7e09d03 PT	182	return 1;
	183	}
	184	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
a393fd54	185	CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
d7e09d03 PT	186	return 1;
	187	}
	188	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
a393fd54	189	CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
d7e09d03 PT	190	return 1;
	191	}
	192	if (data->ioc_pbuf1 && !data->ioc_plen1) {
a393fd54	193	CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
d7e09d03 PT	194	return 1;
	195	}
	196	if (data->ioc_pbuf2 && !data->ioc_plen2) {
a393fd54	197	CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
d7e09d03 PT	198	return 1;
	199	}
	200	if (data->ioc_plen1 && !data->ioc_pbuf1) {
a393fd54	201	CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
d7e09d03 PT	202	return 1;
	203	}
	204	if (data->ioc_plen2 && !data->ioc_pbuf2) {
a393fd54	205	CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
d7e09d03 PT	206	return 1;
d7e09d03 PT	207	}
12909327	208	if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) {
a393fd54	209	CERROR("LIBCFS ioctl: packlen != ioc_len\n");
d7e09d03 PT	210	return 1;
	211	}
	212	if (data->ioc_inllen1 &&
	213	data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
a393fd54	214	CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
d7e09d03 PT	215	return 1;
	216	}
	217	if (data->ioc_inllen2 &&
	218	data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
	219	data->ioc_inllen2 - 1] != '\0') {
a393fd54	220	CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
d7e09d03 PT	221	return 1;
	222	}
	223	return 0;
	224	}
	225
c0b37b70 AS	226	int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
c0b37b70 AS	227	int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
e4efb34a LZ	228	int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
e4efb34a LZ	229	const struct libcfs_ioctl_hdr __user *uparam);
e2d52f7b	230	int libcfs_ioctl_popdata(void __user arg, void buf, int size);
12909327	231	int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
d7e09d03	232
d7e09d03	233	#endif /* __LIBCFS_IOCTL_H__ */