diff options
Diffstat (limited to 'net/bluetooth/smp.h')
| -rw-r--r-- | net/bluetooth/smp.h | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h new file mode 100644 index 000000000..5fe68e255 --- /dev/null +++ b/net/bluetooth/smp.h @@ -0,0 +1,212 @@ +/* + 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_INITIATOR_IDENT 0x07 +struct smp_cmd_initiator_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_RESPONDER, + 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 */ +int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 addr_type); +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 */ |