[mirror_ubuntu-artful-kernel.git] / net / bluetooth / smp.h

/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).

   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;

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
   SOFTWARE IS DISCLAIMED.
*/

#ifndef __SMP_H
#define __SMP_H

struct smp_command_hdr {
	__u8	code;
} __packed;

#define SMP_CMD_PAIRING_REQ	0x01
#define SMP_CMD_PAIRING_RSP	0x02
struct smp_cmd_pairing {
	__u8	io_capability;
	__u8	oob_flag;
	__u8	auth_req;
	__u8	max_key_size;
	__u8	init_key_dist;
	__u8	resp_key_dist;
} __packed;

#define SMP_IO_DISPLAY_ONLY	0x00
#define SMP_IO_DISPLAY_YESNO	0x01
#define SMP_IO_KEYBOARD_ONLY	0x02
#define SMP_IO_NO_INPUT_OUTPUT	0x03
#define SMP_IO_KEYBOARD_DISPLAY	0x04

#define SMP_OOB_NOT_PRESENT	0x00
#define SMP_OOB_PRESENT		0x01

#define SMP_DIST_ENC_KEY	0x01
#define SMP_DIST_ID_KEY		0x02
#define SMP_DIST_SIGN		0x04

#define SMP_AUTH_NONE		0x00
#define SMP_AUTH_BONDING	0x01
#define SMP_AUTH_MITM		0x04

#define SMP_CMD_PAIRING_CONFIRM	0x03
struct smp_cmd_pairing_confirm {
	__u8	confirm_val[16];
} __packed;

#define SMP_CMD_PAIRING_RANDOM	0x04
struct smp_cmd_pairing_random {
	__u8	rand_val[16];
} __packed;

#define SMP_CMD_PAIRING_FAIL	0x05
struct smp_cmd_pairing_fail {
	__u8	reason;
} __packed;

#define SMP_CMD_ENCRYPT_INFO	0x06
struct smp_cmd_encrypt_info {
	__u8	ltk[16];
} __packed;

#define SMP_CMD_MASTER_IDENT	0x07
struct smp_cmd_master_ident {
	__le16	ediv;
	__u8	rand[8];
} __packed;

#define SMP_CMD_IDENT_INFO	0x08
struct smp_cmd_ident_info {
	__u8	irk[16];
} __packed;

#define SMP_CMD_IDENT_ADDR_INFO	0x09
struct smp_cmd_ident_addr_info {
	__u8	addr_type;
	bdaddr_t bdaddr;
} __packed;

#define SMP_CMD_SIGN_INFO	0x0a
struct smp_cmd_sign_info {
	__u8	csrk[16];
} __packed;

#define SMP_CMD_SECURITY_REQ	0x0b
struct smp_cmd_security_req {
	__u8	auth_req;
} __packed;

#define SMP_PASSKEY_ENTRY_FAILED	0x01
#define SMP_OOB_NOT_AVAIL		0x02
#define SMP_AUTH_REQUIREMENTS		0x03
#define SMP_CONFIRM_FAILED		0x04
#define SMP_PAIRING_NOTSUPP		0x05
#define SMP_ENC_KEY_SIZE		0x06
#define SMP_CMD_NOTSUPP			0x07
#define SMP_UNSPECIFIED			0x08
#define SMP_REPEATED_ATTEMPTS		0x09

#define SMP_MIN_ENC_KEY_SIZE		7
#define SMP_MAX_ENC_KEY_SIZE		16

#define SMP_FLAG_TK_VALID	1
#define SMP_FLAG_CFM_PENDING	2
#define SMP_FLAG_MITM_AUTH	3
#define SMP_FLAG_COMPLETE	4

struct smp_chan {
	struct l2cap_conn *conn;
	u8		preq[7]; /* SMP Pairing Request */
	u8		prsp[7]; /* SMP Pairing Response */
	u8		prnd[16]; /* SMP Pairing Random (local) */
	u8		rrnd[16]; /* SMP Pairing Random (remote) */
	u8		pcnf[16]; /* SMP Pairing Confirm */
	u8		tk[16]; /* SMP Temporary Key */
	u8		enc_key_size;
	u8		remote_key_dist;
	bdaddr_t	id_addr;
	u8		id_addr_type;
	u8		irk[16];
	unsigned long	smp_flags;
	struct work_struct confirm;
	struct work_struct random;
};

/* SMP Commands */
bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level);
int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);

void smp_chan_destroy(struct l2cap_conn *conn);

bool smp_irk_matches(struct crypto_blkcipher *tfm, u8 irk[16],
		     bdaddr_t *bdaddr);

#endif /* __SMP_H */
Commit	Line	Data
eb492e01 AB	1	/*
	2	BlueZ - Bluetooth protocol stack for Linux
	3	Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License version 2 as
	7	published by the Free Software Foundation;
	8
	9	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	10	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	11	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	12	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
	13	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	14	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	15	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	16	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	17
	18	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
	19	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
	20	SOFTWARE IS DISCLAIMED.
	21	*/
	22
aff2cae3 VT	23	#ifndef __SMP_H
	24	#define __SMP_H
	25
	26	struct smp_command_hdr {
	27	__u8 code;
	28	} __packed;
	29
	30	#define SMP_CMD_PAIRING_REQ 0x01
	31	#define SMP_CMD_PAIRING_RSP 0x02
	32	struct smp_cmd_pairing {
	33	__u8 io_capability;
	34	__u8 oob_flag;
	35	__u8 auth_req;
	36	__u8 max_key_size;
	37	__u8 init_key_dist;
	38	__u8 resp_key_dist;
	39	} __packed;
	40
88ba43b6 AB	41	#define SMP_IO_DISPLAY_ONLY 0x00
	42	#define SMP_IO_DISPLAY_YESNO 0x01
	43	#define SMP_IO_KEYBOARD_ONLY 0x02
	44	#define SMP_IO_NO_INPUT_OUTPUT 0x03
	45	#define SMP_IO_KEYBOARD_DISPLAY 0x04
	46
	47	#define SMP_OOB_NOT_PRESENT 0x00
	48	#define SMP_OOB_PRESENT 0x01
	49
	50	#define SMP_DIST_ENC_KEY 0x01
	51	#define SMP_DIST_ID_KEY 0x02
	52	#define SMP_DIST_SIGN 0x04
	53
	54	#define SMP_AUTH_NONE 0x00
	55	#define SMP_AUTH_BONDING 0x01
	56	#define SMP_AUTH_MITM 0x04
	57
aff2cae3 VT	58	#define SMP_CMD_PAIRING_CONFIRM 0x03
	59	struct smp_cmd_pairing_confirm {
	60	__u8 confirm_val[16];
	61	} __packed;
	62
	63	#define SMP_CMD_PAIRING_RANDOM 0x04
	64	struct smp_cmd_pairing_random {
	65	__u8 rand_val[16];
	66	} __packed;
	67
	68	#define SMP_CMD_PAIRING_FAIL 0x05
	69	struct smp_cmd_pairing_fail {
	70	__u8 reason;
	71	} __packed;
	72
	73	#define SMP_CMD_ENCRYPT_INFO 0x06
	74	struct smp_cmd_encrypt_info {
	75	__u8 ltk[16];
	76	} __packed;
	77
	78	#define SMP_CMD_MASTER_IDENT 0x07
	79	struct smp_cmd_master_ident {
58115373	80	__le16 ediv;
aff2cae3 VT	81	__u8 rand[8];
	82	} __packed;
	83
	84	#define SMP_CMD_IDENT_INFO 0x08
	85	struct smp_cmd_ident_info {
	86	__u8 irk[16];
	87	} __packed;
	88
	89	#define SMP_CMD_IDENT_ADDR_INFO 0x09
	90	struct smp_cmd_ident_addr_info {
	91	__u8 addr_type;
	92	bdaddr_t bdaddr;
	93	} __packed;
	94
	95	#define SMP_CMD_SIGN_INFO 0x0a
	96	struct smp_cmd_sign_info {
	97	__u8 csrk[16];
	98	} __packed;
	99
	100	#define SMP_CMD_SECURITY_REQ 0x0b
	101	struct smp_cmd_security_req {
	102	__u8 auth_req;
	103	} __packed;
	104
	105	#define SMP_PASSKEY_ENTRY_FAILED 0x01
	106	#define SMP_OOB_NOT_AVAIL 0x02
	107	#define SMP_AUTH_REQUIREMENTS 0x03
	108	#define SMP_CONFIRM_FAILED 0x04
	109	#define SMP_PAIRING_NOTSUPP 0x05
	110	#define SMP_ENC_KEY_SIZE 0x06
b93a6829 AE	111	#define SMP_CMD_NOTSUPP 0x07
b93a6829 AE	112	#define SMP_UNSPECIFIED 0x08
aff2cae3 VT	113	#define SMP_REPEATED_ATTEMPTS 0x09
aff2cae3 VT	114
3158c50c VCG	115	#define SMP_MIN_ENC_KEY_SIZE 7
	116	#define SMP_MAX_ENC_KEY_SIZE 16
	117
2b64d153 BG	118	#define SMP_FLAG_TK_VALID 1
	119	#define SMP_FLAG_CFM_PENDING 2
	120	#define SMP_FLAG_MITM_AUTH 3
f4a407be	121	#define SMP_FLAG_COMPLETE 4
2b64d153	122
1c1def09	123	struct smp_chan {
8aab4757	124	struct l2cap_conn *conn;
1c1def09 VCG	125	u8 preq[7]; /* SMP Pairing Request */
1c1def09 VCG	126	u8 prsp[7]; /* SMP Pairing Response */
b93a6829 AE	127	u8 prnd[16]; /* SMP Pairing Random (local) */
b93a6829 AE	128	u8 rrnd[16]; /* SMP Pairing Random (remote) */
1c1def09 VCG	129	u8 pcnf[16]; /* SMP Pairing Confirm */
1c1def09 VCG	130	u8 tk[16]; /* SMP Temporary Key */
f7aa611a	131	u8 enc_key_size;
fd349c02 JH	132	u8 remote_key_dist;
	133	bdaddr_t id_addr;
	134	u8 id_addr_type;
	135	u8 irk[16];
2b64d153	136	unsigned long smp_flags;
8aab4757 VCG	137	struct work_struct confirm;
8aab4757 VCG	138	struct work_struct random;
1c1def09 VCG	139	};
1c1def09 VCG	140
eb492e01	141	/* SMP Commands */
ad32a2f5	142	bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level);
cc110922	143	int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
eb492e01	144	int smp_sig_channel(struct l2cap_conn conn, struct sk_buff skb);
7034b911	145	int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
2b64d153	146	int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
eb492e01	147
8aab4757 VCG	148	void smp_chan_destroy(struct l2cap_conn *conn);
8aab4757 VCG	149
60478054 JH	150	bool smp_irk_matches(struct crypto_blkcipher *tfm, u8 irk[16],
	151	bdaddr_t *bdaddr);
	152
aff2cae3	153	#endif /* __SMP_H */