mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
a62da6f14d
Bluetooth 5.0 introduces a new H7 key generation function that's used when both sides of the pairing set the CT2 authentication flag to 1. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
211 lines
5 KiB
C
211 lines
5 KiB
C
/*
|
|
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_DIST_LINK_KEY 0x08
|
|
|
|
#define SMP_AUTH_NONE 0x00
|
|
#define SMP_AUTH_BONDING 0x01
|
|
#define SMP_AUTH_MITM 0x04
|
|
#define SMP_AUTH_SC 0x08
|
|
#define SMP_AUTH_KEYPRESS 0x10
|
|
#define SMP_AUTH_CT2 0x20
|
|
|
|
#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;
|
|
__le64 rand;
|
|
} __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_CMD_PUBLIC_KEY 0x0c
|
|
struct smp_cmd_public_key {
|
|
__u8 x[32];
|
|
__u8 y[32];
|
|
} __packed;
|
|
|
|
#define SMP_CMD_DHKEY_CHECK 0x0d
|
|
struct smp_cmd_dhkey_check {
|
|
__u8 e[16];
|
|
} __packed;
|
|
|
|
#define SMP_CMD_KEYPRESS_NOTIFY 0x0e
|
|
struct smp_cmd_keypress_notify {
|
|
__u8 value;
|
|
} __packed;
|
|
|
|
#define SMP_CMD_MAX 0x0e
|
|
|
|
#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_INVALID_PARAMS 0x0a
|
|
#define SMP_DHKEY_CHECK_FAILED 0x0b
|
|
#define SMP_NUMERIC_COMP_FAILED 0x0c
|
|
#define SMP_BREDR_PAIRING_IN_PROGRESS 0x0d
|
|
#define SMP_CROSS_TRANSP_NOT_ALLOWED 0x0e
|
|
|
|
#define SMP_MIN_ENC_KEY_SIZE 7
|
|
#define SMP_MAX_ENC_KEY_SIZE 16
|
|
|
|
/* LTK types used in internal storage (struct smp_ltk) */
|
|
enum {
|
|
SMP_STK,
|
|
SMP_LTK,
|
|
SMP_LTK_SLAVE,
|
|
SMP_LTK_P256,
|
|
SMP_LTK_P256_DEBUG,
|
|
};
|
|
|
|
static inline bool smp_ltk_is_sc(struct smp_ltk *key)
|
|
{
|
|
switch (key->type) {
|
|
case SMP_LTK_P256:
|
|
case SMP_LTK_P256_DEBUG:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline u8 smp_ltk_sec_level(struct smp_ltk *key)
|
|
{
|
|
if (key->authenticated) {
|
|
if (smp_ltk_is_sc(key))
|
|
return BT_SECURITY_FIPS;
|
|
else
|
|
return BT_SECURITY_HIGH;
|
|
}
|
|
|
|
return BT_SECURITY_MEDIUM;
|
|
}
|
|
|
|
/* Key preferences for smp_sufficient security */
|
|
enum smp_key_pref {
|
|
SMP_ALLOW_STK,
|
|
SMP_USE_LTK,
|
|
};
|
|
|
|
/* SMP Commands */
|
|
void smp_cancel_pairing(struct hci_conn *hcon);
|
|
bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level,
|
|
enum smp_key_pref key_pref);
|
|
int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
|
|
int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
|
|
|
|
bool smp_irk_matches(struct hci_dev *hdev, const u8 irk[16],
|
|
const bdaddr_t *bdaddr);
|
|
int smp_generate_rpa(struct hci_dev *hdev, const u8 irk[16], bdaddr_t *rpa);
|
|
int smp_generate_oob(struct hci_dev *hdev, u8 hash[16], u8 rand[16]);
|
|
|
|
int smp_register(struct hci_dev *hdev);
|
|
void smp_unregister(struct hci_dev *hdev);
|
|
|
|
#if IS_ENABLED(CONFIG_BT_SELFTEST_SMP)
|
|
|
|
int bt_selftest_smp(void);
|
|
|
|
#else
|
|
|
|
static inline int bt_selftest_smp(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __SMP_H */
|