2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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;
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.
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.
26 struct smp_command_hdr {
30 #define SMP_CMD_PAIRING_REQ 0x01
31 #define SMP_CMD_PAIRING_RSP 0x02
32 struct smp_cmd_pairing {
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
47 #define SMP_OOB_NOT_PRESENT 0x00
48 #define SMP_OOB_PRESENT 0x01
50 #define SMP_DIST_ENC_KEY 0x01
51 #define SMP_DIST_ID_KEY 0x02
52 #define SMP_DIST_SIGN 0x04
53 #define SMP_DIST_LINK_KEY 0x08
55 #define SMP_AUTH_NONE 0x00
56 #define SMP_AUTH_BONDING 0x01
57 #define SMP_AUTH_MITM 0x04
58 #define SMP_AUTH_SC 0x08
59 #define SMP_AUTH_KEYPRESS 0x10
60 #define SMP_AUTH_CT2 0x20
62 #define SMP_CMD_PAIRING_CONFIRM 0x03
63 struct smp_cmd_pairing_confirm {
67 #define SMP_CMD_PAIRING_RANDOM 0x04
68 struct smp_cmd_pairing_random {
72 #define SMP_CMD_PAIRING_FAIL 0x05
73 struct smp_cmd_pairing_fail {
77 #define SMP_CMD_ENCRYPT_INFO 0x06
78 struct smp_cmd_encrypt_info {
82 #define SMP_CMD_INITIATOR_IDENT 0x07
83 struct smp_cmd_initiator_ident {
88 #define SMP_CMD_IDENT_INFO 0x08
89 struct smp_cmd_ident_info {
93 #define SMP_CMD_IDENT_ADDR_INFO 0x09
94 struct smp_cmd_ident_addr_info {
99 #define SMP_CMD_SIGN_INFO 0x0a
100 struct smp_cmd_sign_info {
104 #define SMP_CMD_SECURITY_REQ 0x0b
105 struct smp_cmd_security_req {
109 #define SMP_CMD_PUBLIC_KEY 0x0c
110 struct smp_cmd_public_key {
115 #define SMP_CMD_DHKEY_CHECK 0x0d
116 struct smp_cmd_dhkey_check {
120 #define SMP_CMD_KEYPRESS_NOTIFY 0x0e
121 struct smp_cmd_keypress_notify {
125 #define SMP_CMD_MAX 0x0e
127 #define SMP_PASSKEY_ENTRY_FAILED 0x01
128 #define SMP_OOB_NOT_AVAIL 0x02
129 #define SMP_AUTH_REQUIREMENTS 0x03
130 #define SMP_CONFIRM_FAILED 0x04
131 #define SMP_PAIRING_NOTSUPP 0x05
132 #define SMP_ENC_KEY_SIZE 0x06
133 #define SMP_CMD_NOTSUPP 0x07
134 #define SMP_UNSPECIFIED 0x08
135 #define SMP_REPEATED_ATTEMPTS 0x09
136 #define SMP_INVALID_PARAMS 0x0a
137 #define SMP_DHKEY_CHECK_FAILED 0x0b
138 #define SMP_NUMERIC_COMP_FAILED 0x0c
139 #define SMP_BREDR_PAIRING_IN_PROGRESS 0x0d
140 #define SMP_CROSS_TRANSP_NOT_ALLOWED 0x0e
142 #define SMP_MIN_ENC_KEY_SIZE 7
143 #define SMP_MAX_ENC_KEY_SIZE 16
145 /* LTK types used in internal storage (struct smp_ltk) */
154 static inline bool smp_ltk_is_sc(struct smp_ltk *key)
158 case SMP_LTK_P256_DEBUG:
165 static inline u8 smp_ltk_sec_level(struct smp_ltk *key)
167 if (key->authenticated) {
168 if (smp_ltk_is_sc(key))
169 return BT_SECURITY_FIPS;
171 return BT_SECURITY_HIGH;
174 return BT_SECURITY_MEDIUM;
177 /* Key preferences for smp_sufficient security */
184 int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr,
186 bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level,
187 enum smp_key_pref key_pref);
188 int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
189 int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
191 bool smp_irk_matches(struct hci_dev *hdev, const u8 irk[16],
192 const bdaddr_t *bdaddr);
193 int smp_generate_rpa(struct hci_dev *hdev, const u8 irk[16], bdaddr_t *rpa);
194 int smp_generate_oob(struct hci_dev *hdev, u8 hash[16], u8 rand[16]);
196 int smp_force_bredr(struct hci_dev *hdev, bool enable);
198 int smp_register(struct hci_dev *hdev);
199 void smp_unregister(struct hci_dev *hdev);
201 #if IS_ENABLED(CONFIG_BT_SELFTEST_SMP)
203 int bt_selftest_smp(void);
207 static inline int bt_selftest_smp(void)