[deliverable/linux.git] / include / linux / ieee802154.h

/*
 * IEEE802.15.4-2003 specification
 *
 * Copyright (C) 2007, 2008 Siemens AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * 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 for more details.
 *
 * Written by:
 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
 * Maxim Osipov <maxim.osipov@siemens.com>
 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
 */

#ifndef LINUX_IEEE802154_H
#define LINUX_IEEE802154_H

#include <linux/types.h>
#include <linux/random.h>
#include <asm/byteorder.h>

#define IEEE802154_MTU			127
#define IEEE802154_ACK_PSDU_LEN		5
#define IEEE802154_MIN_PSDU_LEN		9

#define IEEE802154_PAN_ID_BROADCAST	0xffff
#define IEEE802154_ADDR_SHORT_BROADCAST	0xffff
#define IEEE802154_ADDR_SHORT_UNSPEC	0xfffe

#define IEEE802154_EXTENDED_ADDR_LEN	8

#define IEEE802154_LIFS_PERIOD		40
#define IEEE802154_SIFS_PERIOD		12

#define IEEE802154_MAX_CHANNEL		26
#define IEEE802154_MAX_PAGE		31

#define IEEE802154_FC_TYPE_BEACON	0x0	/* Frame is beacon */
#define	IEEE802154_FC_TYPE_DATA		0x1	/* Frame is data */
#define IEEE802154_FC_TYPE_ACK		0x2	/* Frame is acknowledgment */
#define IEEE802154_FC_TYPE_MAC_CMD	0x3	/* Frame is MAC command */

#define IEEE802154_FC_TYPE_SHIFT		0
#define IEEE802154_FC_TYPE_MASK		((1 << 3) - 1)
#define IEEE802154_FC_TYPE(x)		((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT)
#define IEEE802154_FC_SET_TYPE(v, x)	do {	\
	v = (((v) & ~IEEE802154_FC_TYPE_MASK) | \
	    (((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \
	} while (0)

#define IEEE802154_FC_SECEN_SHIFT	3
#define IEEE802154_FC_SECEN		(1 << IEEE802154_FC_SECEN_SHIFT)
#define IEEE802154_FC_FRPEND_SHIFT	4
#define IEEE802154_FC_FRPEND		(1 << IEEE802154_FC_FRPEND_SHIFT)
#define IEEE802154_FC_ACK_REQ_SHIFT	5
#define IEEE802154_FC_ACK_REQ		(1 << IEEE802154_FC_ACK_REQ_SHIFT)
#define IEEE802154_FC_INTRA_PAN_SHIFT	6
#define IEEE802154_FC_INTRA_PAN		(1 << IEEE802154_FC_INTRA_PAN_SHIFT)

#define IEEE802154_FC_SAMODE_SHIFT	14
#define IEEE802154_FC_SAMODE_MASK	(3 << IEEE802154_FC_SAMODE_SHIFT)
#define IEEE802154_FC_DAMODE_SHIFT	10
#define IEEE802154_FC_DAMODE_MASK	(3 << IEEE802154_FC_DAMODE_SHIFT)

#define IEEE802154_FC_VERSION_SHIFT	12
#define IEEE802154_FC_VERSION_MASK	(3 << IEEE802154_FC_VERSION_SHIFT)
#define IEEE802154_FC_VERSION(x)	((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT)

#define IEEE802154_FC_SAMODE(x)		\
	(((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT)

#define IEEE802154_FC_DAMODE(x)		\
	(((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT)

#define IEEE802154_SCF_SECLEVEL_MASK		7
#define IEEE802154_SCF_SECLEVEL_SHIFT		0
#define IEEE802154_SCF_SECLEVEL(x)		(x & IEEE802154_SCF_SECLEVEL_MASK)
#define IEEE802154_SCF_KEY_ID_MODE_SHIFT	3
#define IEEE802154_SCF_KEY_ID_MODE_MASK		(3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT)
#define IEEE802154_SCF_KEY_ID_MODE(x)		\
	((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT)

#define IEEE802154_SCF_KEY_IMPLICIT		0
#define IEEE802154_SCF_KEY_INDEX		1
#define IEEE802154_SCF_KEY_SHORT_INDEX		2
#define IEEE802154_SCF_KEY_HW_INDEX		3

#define IEEE802154_SCF_SECLEVEL_NONE		0
#define IEEE802154_SCF_SECLEVEL_MIC32		1
#define IEEE802154_SCF_SECLEVEL_MIC64		2
#define IEEE802154_SCF_SECLEVEL_MIC128		3
#define IEEE802154_SCF_SECLEVEL_ENC		4
#define IEEE802154_SCF_SECLEVEL_ENC_MIC32	5
#define IEEE802154_SCF_SECLEVEL_ENC_MIC64	6
#define IEEE802154_SCF_SECLEVEL_ENC_MIC128	7

/* MAC footer size */
#define IEEE802154_MFR_SIZE	2 /* 2 octets */

/* MAC's Command Frames Identifiers */
#define IEEE802154_CMD_ASSOCIATION_REQ		0x01
#define IEEE802154_CMD_ASSOCIATION_RESP		0x02
#define IEEE802154_CMD_DISASSOCIATION_NOTIFY	0x03
#define IEEE802154_CMD_DATA_REQ			0x04
#define IEEE802154_CMD_PANID_CONFLICT_NOTIFY	0x05
#define IEEE802154_CMD_ORPHAN_NOTIFY		0x06
#define IEEE802154_CMD_BEACON_REQ		0x07
#define IEEE802154_CMD_COORD_REALIGN_NOTIFY	0x08
#define IEEE802154_CMD_GTS_REQ			0x09

/*
 * The return values of MAC operations
 */
enum {
	/*
	 * The requested operation was completed successfully.
	 * For a transmission request, this value indicates
	 * a successful transmission.
	 */
	IEEE802154_SUCCESS = 0x0,

	/* The beacon was lost following a synchronization request. */
	IEEE802154_BEACON_LOSS = 0xe0,
	/*
	 * A transmission could not take place due to activity on the
	 * channel, i.e., the CSMA-CA mechanism has failed.
	 */
	IEEE802154_CHNL_ACCESS_FAIL = 0xe1,
	/* The GTS request has been denied by the PAN coordinator. */
	IEEE802154_DENINED = 0xe2,
	/* The attempt to disable the transceiver has failed. */
	IEEE802154_DISABLE_TRX_FAIL = 0xe3,
	/*
	 * The received frame induces a failed security check according to
	 * the security suite.
	 */
	IEEE802154_FAILED_SECURITY_CHECK = 0xe4,
	/*
	 * The frame resulting from secure processing has a length that is
	 * greater than aMACMaxFrameSize.
	 */
	IEEE802154_FRAME_TOO_LONG = 0xe5,
	/*
	 * The requested GTS transmission failed because the specified GTS
	 * either did not have a transmit GTS direction or was not defined.
	 */
	IEEE802154_INVALID_GTS = 0xe6,
	/*
	 * A request to purge an MSDU from the transaction queue was made using
	 * an MSDU handle that was not found in the transaction table.
	 */
	IEEE802154_INVALID_HANDLE = 0xe7,
	/* A parameter in the primitive is out of the valid range.*/
	IEEE802154_INVALID_PARAMETER = 0xe8,
	/* No acknowledgment was received after aMaxFrameRetries. */
	IEEE802154_NO_ACK = 0xe9,
	/* A scan operation failed to find any network beacons.*/
	IEEE802154_NO_BEACON = 0xea,
	/* No response data were available following a request. */
	IEEE802154_NO_DATA = 0xeb,
	/* The operation failed because a short address was not allocated. */
	IEEE802154_NO_SHORT_ADDRESS = 0xec,
	/*
	 * A receiver enable request was unsuccessful because it could not be
	 * completed within the CAP.
	 */
	IEEE802154_OUT_OF_CAP = 0xed,
	/*
	 * A PAN identifier conflict has been detected and communicated to the
	 * PAN coordinator.
	 */
	IEEE802154_PANID_CONFLICT = 0xee,
	/* A coordinator realignment command has been received. */
	IEEE802154_REALIGMENT = 0xef,
	/* The transaction has expired and its information discarded. */
	IEEE802154_TRANSACTION_EXPIRED = 0xf0,
	/* There is no capacity to store the transaction. */
	IEEE802154_TRANSACTION_OVERFLOW = 0xf1,
	/*
	 * The transceiver was in the transmitter enabled state when the
	 * receiver was requested to be enabled.
	 */
	IEEE802154_TX_ACTIVE = 0xf2,
	/* The appropriate key is not available in the ACL. */
	IEEE802154_UNAVAILABLE_KEY = 0xf3,
	/*
	 * A SET/GET request was issued with the identifier of a PIB attribute
	 * that is not supported.
	 */
	IEEE802154_UNSUPPORTED_ATTR = 0xf4,
	/*
	 * A request to perform a scan operation failed because the MLME was
	 * in the process of performing a previously initiated scan operation.
	 */
	IEEE802154_SCAN_IN_PROGRESS = 0xfc,
};

/**
 * ieee802154_is_valid_psdu_len - check if psdu len is valid
 * available lengths:
 *	0-4	Reserved
 *	5	MPDU (Acknowledgment)
 *	6-8	Reserved
 *	9-127	MPDU
 *
 * @len: psdu len with (MHR + payload + MFR)
 */
static inline bool ieee802154_is_valid_psdu_len(const u8 len)
{
	return (len == IEEE802154_ACK_PSDU_LEN ||
		(len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU));
}

/**
 * ieee802154_is_valid_psdu_len - check if extended addr is valid
 * @addr: extended addr to check
 */
static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
{
	/* These EUI-64 addresses are reserved by IEEE. 0xffffffffffffffff
	 * is used internally as extended to short address broadcast mapping.
	 * This is currently a workaround because neighbor discovery can't
	 * deal with short addresses types right now.
	 */
	return ((addr != cpu_to_le64(0x0000000000000000ULL)) &&
		(addr != cpu_to_le64(0xffffffffffffffffULL)));
}

/**
 * ieee802154_random_extended_addr - generates a random extended address
 * @addr: extended addr pointer to place the random address
 */
static inline void ieee802154_random_extended_addr(__le64 *addr)
{
	get_random_bytes(addr, IEEE802154_EXTENDED_ADDR_LEN);

	/* toggle some bit if we hit an invalid extended addr */
	if (!ieee802154_is_valid_extended_addr(*addr))
		((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] ^= 0x01;
}

#endif /* LINUX_IEEE802154_H */
Commit	Line	Data
9ec76716 SL	1	/*
	2	* IEEE802.15.4-2003 specification
	3	*
	4	* Copyright (C) 2007, 2008 Siemens AG
	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
	8	* as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
9ec76716 SL	15	* Written by:
	16	* Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
	17	* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
	18	* Maxim Osipov <maxim.osipov@siemens.com>
	19	* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
719269af	20	* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
9ec76716 SL	21	*/
9ec76716 SL	22
4ca24aca AA	23	#ifndef LINUX_IEEE802154_H
4ca24aca AA	24	#define LINUX_IEEE802154_H
9ec76716	25
fa491001	26	#include <linux/types.h>
35d5a374	27	#include <linux/random.h>
c28bee84	28	#include <asm/byteorder.h>
fa491001	29
719269af	30	#define IEEE802154_MTU 127
306f7aa1 AA	31	#define IEEE802154_ACK_PSDU_LEN 5
306f7aa1 AA	32	#define IEEE802154_MIN_PSDU_LEN 9
719269af	33
702bf371	34	#define IEEE802154_PAN_ID_BROADCAST 0xffff
9830c62a AA	35	#define IEEE802154_ADDR_SHORT_BROADCAST 0xffff
9830c62a AA	36	#define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe
702bf371	37
1906bbbd AA	38	#define IEEE802154_EXTENDED_ADDR_LEN 8
1906bbbd AA	39
61f2dcba AA	40	#define IEEE802154_LIFS_PERIOD 40
	41	#define IEEE802154_SIFS_PERIOD 12
	42
cb41c8dd AA	43	#define IEEE802154_MAX_CHANNEL 26
	44	#define IEEE802154_MAX_PAGE 31
	45
9ec76716 SL	46	#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
	47	#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
	48	#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
	49	#define IEEE802154_FC_TYPE_MAC_CMD 0x3 /* Frame is MAC command */
	50
	51	#define IEEE802154_FC_TYPE_SHIFT 0
	52	#define IEEE802154_FC_TYPE_MASK ((1 << 3) - 1)
	53	#define IEEE802154_FC_TYPE(x) ((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT)
	54	#define IEEE802154_FC_SET_TYPE(v, x) do { \
	55	v = (((v) & ~IEEE802154_FC_TYPE_MASK) \| \
	56	(((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \
	57	} while (0)
	58
94b4f6c2 PB	59	#define IEEE802154_FC_SECEN_SHIFT 3
	60	#define IEEE802154_FC_SECEN (1 << IEEE802154_FC_SECEN_SHIFT)
	61	#define IEEE802154_FC_FRPEND_SHIFT 4
	62	#define IEEE802154_FC_FRPEND (1 << IEEE802154_FC_FRPEND_SHIFT)
	63	#define IEEE802154_FC_ACK_REQ_SHIFT 5
	64	#define IEEE802154_FC_ACK_REQ (1 << IEEE802154_FC_ACK_REQ_SHIFT)
	65	#define IEEE802154_FC_INTRA_PAN_SHIFT 6
	66	#define IEEE802154_FC_INTRA_PAN (1 << IEEE802154_FC_INTRA_PAN_SHIFT)
9ec76716 SL	67
	68	#define IEEE802154_FC_SAMODE_SHIFT 14
	69	#define IEEE802154_FC_SAMODE_MASK (3 << IEEE802154_FC_SAMODE_SHIFT)
	70	#define IEEE802154_FC_DAMODE_SHIFT 10
	71	#define IEEE802154_FC_DAMODE_MASK (3 << IEEE802154_FC_DAMODE_SHIFT)
	72
94b4f6c2 PB	73	#define IEEE802154_FC_VERSION_SHIFT 12
	74	#define IEEE802154_FC_VERSION_MASK (3 << IEEE802154_FC_VERSION_SHIFT)
	75	#define IEEE802154_FC_VERSION(x) ((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT)
	76
9ec76716 SL	77	#define IEEE802154_FC_SAMODE(x) \
	78	(((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT)
	79
	80	#define IEEE802154_FC_DAMODE(x) \
	81	(((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT)
	82
94b4f6c2 PB	83	#define IEEE802154_SCF_SECLEVEL_MASK 7
	84	#define IEEE802154_SCF_SECLEVEL_SHIFT 0
	85	#define IEEE802154_SCF_SECLEVEL(x) (x & IEEE802154_SCF_SECLEVEL_MASK)
	86	#define IEEE802154_SCF_KEY_ID_MODE_SHIFT 3
	87	#define IEEE802154_SCF_KEY_ID_MODE_MASK (3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT)
	88	#define IEEE802154_SCF_KEY_ID_MODE(x) \
	89	((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT)
	90
	91	#define IEEE802154_SCF_KEY_IMPLICIT 0
	92	#define IEEE802154_SCF_KEY_INDEX 1
	93	#define IEEE802154_SCF_KEY_SHORT_INDEX 2
	94	#define IEEE802154_SCF_KEY_HW_INDEX 3
9ec76716	95
c3a6114f PB	96	#define IEEE802154_SCF_SECLEVEL_NONE 0
	97	#define IEEE802154_SCF_SECLEVEL_MIC32 1
	98	#define IEEE802154_SCF_SECLEVEL_MIC64 2
	99	#define IEEE802154_SCF_SECLEVEL_MIC128 3
	100	#define IEEE802154_SCF_SECLEVEL_ENC 4
	101	#define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5
	102	#define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6
	103	#define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7
	104
719269af	105	/* MAC footer size */
	106	#define IEEE802154_MFR_SIZE 2 /* 2 octets */
	107
9ec76716 SL	108	/* MAC's Command Frames Identifiers */
	109	#define IEEE802154_CMD_ASSOCIATION_REQ 0x01
	110	#define IEEE802154_CMD_ASSOCIATION_RESP 0x02
	111	#define IEEE802154_CMD_DISASSOCIATION_NOTIFY 0x03
	112	#define IEEE802154_CMD_DATA_REQ 0x04
	113	#define IEEE802154_CMD_PANID_CONFLICT_NOTIFY 0x05
	114	#define IEEE802154_CMD_ORPHAN_NOTIFY 0x06
	115	#define IEEE802154_CMD_BEACON_REQ 0x07
	116	#define IEEE802154_CMD_COORD_REALIGN_NOTIFY 0x08
	117	#define IEEE802154_CMD_GTS_REQ 0x09
	118
	119	/*
	120	* The return values of MAC operations
	121	*/
	122	enum {
	123	/*
	124	* The requested operation was completed successfully.
	125	* For a transmission request, this value indicates
	126	* a successful transmission.
	127	*/
	128	IEEE802154_SUCCESS = 0x0,
	129
	130	/* The beacon was lost following a synchronization request. */
	131	IEEE802154_BEACON_LOSS = 0xe0,
	132	/*
	133	* A transmission could not take place due to activity on the
	134	* channel, i.e., the CSMA-CA mechanism has failed.
	135	*/
	136	IEEE802154_CHNL_ACCESS_FAIL = 0xe1,
	137	/* The GTS request has been denied by the PAN coordinator. */
	138	IEEE802154_DENINED = 0xe2,
	139	/* The attempt to disable the transceiver has failed. */
	140	IEEE802154_DISABLE_TRX_FAIL = 0xe3,
	141	/*
	142	* The received frame induces a failed security check according to
	143	* the security suite.
	144	*/
	145	IEEE802154_FAILED_SECURITY_CHECK = 0xe4,
	146	/*
	147	* The frame resulting from secure processing has a length that is
	148	* greater than aMACMaxFrameSize.
	149	*/
	150	IEEE802154_FRAME_TOO_LONG = 0xe5,
	151	/*
	152	* The requested GTS transmission failed because the specified GTS
	153	* either did not have a transmit GTS direction or was not defined.
	154	*/
	155	IEEE802154_INVALID_GTS = 0xe6,
	156	/*
	157	* A request to purge an MSDU from the transaction queue was made using
	158	* an MSDU handle that was not found in the transaction table.
	159	*/
	160	IEEE802154_INVALID_HANDLE = 0xe7,
	161	/* A parameter in the primitive is out of the valid range.*/
	162	IEEE802154_INVALID_PARAMETER = 0xe8,
	163	/* No acknowledgment was received after aMaxFrameRetries. */
	164	IEEE802154_NO_ACK = 0xe9,
	165	/* A scan operation failed to find any network beacons.*/
	166	IEEE802154_NO_BEACON = 0xea,
	167	/* No response data were available following a request. */
	168	IEEE802154_NO_DATA = 0xeb,
	169	/* The operation failed because a short address was not allocated. */
	170	IEEE802154_NO_SHORT_ADDRESS = 0xec,
	171	/*
172	* A receiver enable request was unsuccessful because it could not be
173	* completed within the CAP.
174	*/
175	IEEE802154_OUT_OF_CAP = 0xed,
176	/*
177	* A PAN identifier conflict has been detected and communicated to the
178	* PAN coordinator.
179	*/
180	IEEE802154_PANID_CONFLICT = 0xee,
181	/* A coordinator realignment command has been received. */
182	IEEE802154_REALIGMENT = 0xef,
183	/* The transaction has expired and its information discarded. */
184	IEEE802154_TRANSACTION_EXPIRED = 0xf0,
185	/* There is no capacity to store the transaction. */
186	IEEE802154_TRANSACTION_OVERFLOW = 0xf1,
187	/*
188	* The transceiver was in the transmitter enabled state when the
189	* receiver was requested to be enabled.
190	*/
191	IEEE802154_TX_ACTIVE = 0xf2,
192	/* The appropriate key is not available in the ACL. */
193	IEEE802154_UNAVAILABLE_KEY = 0xf3,
194	/*
195	* A SET/GET request was issued with the identifier of a PIB attribute
196	* that is not supported.
197	*/
198	IEEE802154_UNSUPPORTED_ATTR = 0xf4,
199	/*
200	* A request to perform a scan operation failed because the MLME was
201	* in the process of performing a previously initiated scan operation.
202	*/
203	IEEE802154_SCAN_IN_PROGRESS = 0xfc,
204	};
205
fa491001 AA	206	/**
fa491001 AA	207	* ieee802154_is_valid_psdu_len - check if psdu len is valid
306f7aa1 AA	208	* available lengths:
	209	* 0-4 Reserved
	210	* 5 MPDU (Acknowledgment)
	211	* 6-8 Reserved
	212	* 9-127 MPDU
	213	*
fa491001 AA	214	* @len: psdu len with (MHR + payload + MFR)
	215	*/
	216	static inline bool ieee802154_is_valid_psdu_len(const u8 len)
	217	{
306f7aa1 AA	218	return (len == IEEE802154_ACK_PSDU_LEN \|\|
306f7aa1 AA	219	(len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU));
fa491001	220	}
9ec76716	221
cb904b0a AA	222	/**
	223	* ieee802154_is_valid_psdu_len - check if extended addr is valid
	224	* @addr: extended addr to check
	225	*/
	226	static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
	227	{
	228	/* These EUI-64 addresses are reserved by IEEE. 0xffffffffffffffff
	229	* is used internally as extended to short address broadcast mapping.
	230	* This is currently a workaround because neighbor discovery can't
	231	* deal with short addresses types right now.
	232	*/
0d8a52f9	233	return ((addr != cpu_to_le64(0x0000000000000000ULL)) &&
c28bee84	234	(addr != cpu_to_le64(0xffffffffffffffffULL)));
cb904b0a AA	235	}
cb904b0a AA	236
35d5a374 AA	237	/**
	238	* ieee802154_random_extended_addr - generates a random extended address
	239	* @addr: extended addr pointer to place the random address
	240	*/
	241	static inline void ieee802154_random_extended_addr(__le64 *addr)
	242	{
	243	get_random_bytes(addr, IEEE802154_EXTENDED_ADDR_LEN);
	244
	245	/* toggle some bit if we hit an invalid extended addr */
	246	if (!ieee802154_is_valid_extended_addr(*addr))
	247	((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] ^= 0x01;
	248	}
	249
4ca24aca	250	#endif /* LINUX_IEEE802154_H */