Home | History | Annotate | Download | only in smp
      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 1999-2012 Broadcom Corporation
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 /******************************************************************************
     20  *
     21  *  This file contains internally used SMP definitions
     22  *
     23  ******************************************************************************/
     24 #ifndef  SMP_INT_H
     25 #define  SMP_INT_H
     26 
     27 #if BLE_INCLUDED == TRUE
     28 
     29 #include "btu.h"
     30 #include "btm_ble_api.h"
     31 #include "btm_api.h"
     32 #include "smp_api.h"
     33 
     34 #define SMP_MODEL_ENCRYPTION_ONLY  0   /* Legacy mode, Just Works model */
     35 #define SMP_MODEL_PASSKEY       1   /* Legacy mode, Passkey Entry model, this side inputs the key */
     36 #define SMP_MODEL_OOB           2   /* Legacy mode, OOB model */
     37 #define SMP_MODEL_KEY_NOTIF     3   /* Legacy mode, Passkey Entry model, this side displays the key */
     38 #define SMP_MODEL_SEC_CONN_JUSTWORKS  4  /* Secure Connections mode, Just Works model */
     39 #define SMP_MODEL_SEC_CONN_NUM_COMP   5  /* Secure Connections mode, Numeric Comparison model */
     40 #define SMP_MODEL_SEC_CONN_PASSKEY_ENT 6 /* Secure Connections mode, Passkey Entry model, */
     41                                     /* this side inputs the key */
     42 #define SMP_MODEL_SEC_CONN_PASSKEY_DISP 7   /* Secure Connections mode, Passkey Entry model, */
     43                                     /* this side displays the key */
     44 #define SMP_MODEL_SEC_CONN_OOB  8   /* Secure Connections mode, OOB model */
     45 #define SMP_MODEL_OUT_OF_RANGE  9
     46 typedef UINT8   tSMP_ASSO_MODEL;
     47 
     48 
     49 #ifndef SMP_MAX_CONN
     50     #define SMP_MAX_CONN    2
     51 #endif
     52 
     53 #define SMP_WAIT_FOR_RSP_TIMEOUT_MS      (30 * 1000)
     54 #define SMP_DELAYED_AUTH_TIMEOUT_MS      500
     55 
     56 #define SMP_OPCODE_INIT                   0x04
     57 
     58 /* SMP events */
     59 #define SMP_PAIRING_REQ_EVT             SMP_OPCODE_PAIRING_REQ
     60 #define SMP_PAIRING_RSP_EVT             SMP_OPCODE_PAIRING_RSP
     61 #define SMP_CONFIRM_EVT                 SMP_OPCODE_CONFIRM
     62 #define SMP_RAND_EVT                    SMP_OPCODE_RAND
     63 #define SMP_PAIRING_FAILED_EVT          SMP_OPCODE_PAIRING_FAILED
     64 #define SMP_ENCRPTION_INFO_EVT          SMP_OPCODE_ENCRYPT_INFO
     65 #define SMP_MASTER_ID_EVT               SMP_OPCODE_MASTER_ID
     66 #define SMP_ID_INFO_EVT                 SMP_OPCODE_IDENTITY_INFO
     67 #define SMP_ID_ADDR_EVT                 SMP_OPCODE_ID_ADDR
     68 #define SMP_SIGN_INFO_EVT               SMP_OPCODE_SIGN_INFO
     69 #define SMP_SECURITY_REQ_EVT            SMP_OPCODE_SEC_REQ
     70 
     71 #define SMP_PAIR_PUBLIC_KEY_EVT         SMP_OPCODE_PAIR_PUBLIC_KEY
     72 #define SMP_PAIR_KEYPRESS_NOTIFICATION_EVT SMP_OPCODE_PAIR_KEYPR_NOTIF
     73 
     74 #define SMP_PAIR_COMMITM_EVT            SMP_OPCODE_PAIR_COMMITM
     75 
     76 #define SMP_SELF_DEF_EVT                (SMP_PAIR_COMMITM_EVT + 1)
     77 #define SMP_KEY_READY_EVT               (SMP_SELF_DEF_EVT)
     78 #define SMP_ENCRYPTED_EVT               (SMP_SELF_DEF_EVT + 1)
     79 #define SMP_L2CAP_CONN_EVT              (SMP_SELF_DEF_EVT + 2)
     80 #define SMP_L2CAP_DISCONN_EVT           (SMP_SELF_DEF_EVT + 3)
     81 #define SMP_IO_RSP_EVT                  (SMP_SELF_DEF_EVT + 4)
     82 #define SMP_API_SEC_GRANT_EVT           (SMP_SELF_DEF_EVT + 5)
     83 #define SMP_TK_REQ_EVT                  (SMP_SELF_DEF_EVT + 6)
     84 #define SMP_AUTH_CMPL_EVT               (SMP_SELF_DEF_EVT + 7)
     85 #define SMP_ENC_REQ_EVT                 (SMP_SELF_DEF_EVT + 8)
     86 #define SMP_BOND_REQ_EVT                (SMP_SELF_DEF_EVT + 9)
     87 #define SMP_DISCARD_SEC_REQ_EVT         (SMP_SELF_DEF_EVT + 10)
     88 
     89 #define SMP_PAIR_DHKEY_CHCK_EVT         SMP_OPCODE_PAIR_DHKEY_CHECK
     90 
     91 #define SMP_PUBL_KEY_EXCH_REQ_EVT       (SMP_SELF_DEF_EVT + 11) /* request to start public */
     92                                                                 /* key exchange */
     93 
     94 #define SMP_LOC_PUBL_KEY_CRTD_EVT       (SMP_SELF_DEF_EVT + 12) /* local public key created */
     95 
     96 #define SMP_BOTH_PUBL_KEYS_RCVD_EVT     (SMP_SELF_DEF_EVT + 13) /* both local and peer public */
     97                                                                 /* keys are saved in cb */
     98 
     99 #define SMP_SC_DHKEY_CMPLT_EVT          (SMP_SELF_DEF_EVT + 14) /* DHKey computation is completed,*/
    100                                                                 /* time to start SC phase1 */
    101 
    102 #define SMP_HAVE_LOC_NONCE_EVT          (SMP_SELF_DEF_EVT + 15) /* new local nonce is generated */
    103                                                                 /*and saved in p_cb->rand */
    104 
    105 #define SMP_SC_PHASE1_CMPLT_EVT         (SMP_SELF_DEF_EVT + 16) /* time to start SC phase2 */
    106 
    107 #define SMP_SC_CALC_NC_EVT              (SMP_SELF_DEF_EVT + 17) /* request to calculate number */
    108                                                              /* for user check. Used only in the */
    109                                                              /* numeric compare protocol */
    110 
    111 /* Request to display the number for user check to the user.*/
    112 /* Used only in the numeric compare protocol */
    113 #define SMP_SC_DSPL_NC_EVT              (SMP_SELF_DEF_EVT + 18)
    114 
    115 #define SMP_SC_NC_OK_EVT                (SMP_SELF_DEF_EVT + 19) /* user confirms 'OK' numeric */
    116                                                                 /*comparison request */
    117 
    118 /* both local and peer DHKey Checks are already present - it is used on slave to prevent race condition */
    119 #define SMP_SC_2_DHCK_CHKS_PRES_EVT     (SMP_SELF_DEF_EVT + 20)
    120 
    121 /* same meaning as SMP_KEY_READY_EVT to separate between SC and legacy actions */
    122 #define SMP_SC_KEY_READY_EVT            (SMP_SELF_DEF_EVT + 21)
    123 #define SMP_KEYPRESS_NOTIFICATION_EVENT (SMP_SELF_DEF_EVT + 22)
    124 
    125 #define SMP_SC_OOB_DATA_EVT             (SMP_SELF_DEF_EVT + 23) /* SC OOB data from some */
    126                                                                 /* repository is provided */
    127 
    128 #define SMP_CR_LOC_SC_OOB_DATA_EVT      (SMP_SELF_DEF_EVT + 24)
    129 #define SMP_MAX_EVT                      SMP_CR_LOC_SC_OOB_DATA_EVT
    130 
    131 typedef UINT8 tSMP_EVENT;
    132 
    133 /* Assumption it's only using the low 8 bits, if bigger than that, need to expand it to 16 bits */
    134 #define SMP_SEC_KEY_MASK                    0x00ff
    135 
    136 /* SMP pairing state */
    137 enum
    138 {
    139     SMP_STATE_IDLE,
    140     SMP_STATE_WAIT_APP_RSP,
    141     SMP_STATE_SEC_REQ_PENDING,
    142     SMP_STATE_PAIR_REQ_RSP,
    143     SMP_STATE_WAIT_CONFIRM,
    144     SMP_STATE_CONFIRM,
    145     SMP_STATE_RAND,
    146     SMP_STATE_PUBLIC_KEY_EXCH,
    147     SMP_STATE_SEC_CONN_PHS1_START,
    148     SMP_STATE_WAIT_COMMITMENT,
    149     SMP_STATE_WAIT_NONCE,
    150     SMP_STATE_SEC_CONN_PHS2_START,
    151     SMP_STATE_WAIT_DHK_CHECK,
    152     SMP_STATE_DHK_CHECK,
    153     SMP_STATE_ENCRYPTION_PENDING,
    154     SMP_STATE_BOND_PENDING,
    155     SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA,
    156     SMP_STATE_MAX
    157 };
    158 typedef UINT8 tSMP_STATE;
    159 
    160 /* SMP over BR/EDR events */
    161 #define SMP_BR_PAIRING_REQ_EVT              SMP_OPCODE_PAIRING_REQ
    162 #define SMP_BR_PAIRING_RSP_EVT              SMP_OPCODE_PAIRING_RSP
    163 #define SMP_BR_CONFIRM_EVT                  SMP_OPCODE_CONFIRM    /* not expected over BR/EDR */
    164 #define SMP_BR_RAND_EVT                     SMP_OPCODE_RAND       /* not expected over BR/EDR */
    165 #define SMP_BR_PAIRING_FAILED_EVT           SMP_OPCODE_PAIRING_FAILED
    166 #define SMP_BR_ENCRPTION_INFO_EVT           SMP_OPCODE_ENCRYPT_INFO /* not expected over BR/EDR */
    167 #define SMP_BR_MASTER_ID_EVT                SMP_OPCODE_MASTER_ID    /* not expected over BR/EDR */
    168 #define SMP_BR_ID_INFO_EVT                  SMP_OPCODE_IDENTITY_INFO
    169 #define SMP_BR_ID_ADDR_EVT                  SMP_OPCODE_ID_ADDR
    170 #define SMP_BR_SIGN_INFO_EVT                SMP_OPCODE_SIGN_INFO
    171 #define SMP_BR_SECURITY_REQ_EVT          SMP_OPCODE_SEC_REQ          /* not expected over BR/EDR */
    172 #define SMP_BR_PAIR_PUBLIC_KEY_EVT       SMP_OPCODE_PAIR_PUBLIC_KEY  /* not expected over BR/EDR */
    173 #define SMP_BR_PAIR_DHKEY_CHCK_EVT       SMP_OPCODE_PAIR_DHKEY_CHECK /* not expected over BR/EDR */
    174 #define SMP_BR_PAIR_KEYPR_NOTIF_EVT      SMP_OPCODE_PAIR_KEYPR_NOTIF /* not expected over BR/EDR */
    175 #define SMP_BR_SELF_DEF_EVT              SMP_BR_PAIR_KEYPR_NOTIF_EVT
    176 #define SMP_BR_KEY_READY_EVT                (SMP_BR_SELF_DEF_EVT + 1)
    177 #define SMP_BR_ENCRYPTED_EVT                (SMP_BR_SELF_DEF_EVT + 2)
    178 #define SMP_BR_L2CAP_CONN_EVT               (SMP_BR_SELF_DEF_EVT + 3)
    179 #define SMP_BR_L2CAP_DISCONN_EVT            (SMP_BR_SELF_DEF_EVT + 4)
    180 #define SMP_BR_KEYS_RSP_EVT                 (SMP_BR_SELF_DEF_EVT + 5)
    181 #define SMP_BR_API_SEC_GRANT_EVT            (SMP_BR_SELF_DEF_EVT + 6)
    182 #define SMP_BR_TK_REQ_EVT                   (SMP_BR_SELF_DEF_EVT + 7)
    183 #define SMP_BR_AUTH_CMPL_EVT                (SMP_BR_SELF_DEF_EVT + 8)
    184 #define SMP_BR_ENC_REQ_EVT                  (SMP_BR_SELF_DEF_EVT + 9)
    185 #define SMP_BR_BOND_REQ_EVT                 (SMP_BR_SELF_DEF_EVT + 10)
    186 #define SMP_BR_DISCARD_SEC_REQ_EVT          (SMP_BR_SELF_DEF_EVT + 11)
    187 #define SMP_BR_MAX_EVT                      (SMP_BR_SELF_DEF_EVT + 12)
    188 typedef UINT8 tSMP_BR_EVENT;
    189 
    190 /* SMP over BR/EDR pairing states */
    191 enum
    192 {
    193     SMP_BR_STATE_IDLE = SMP_STATE_IDLE,
    194     SMP_BR_STATE_WAIT_APP_RSP,
    195     SMP_BR_STATE_PAIR_REQ_RSP,
    196     SMP_BR_STATE_BOND_PENDING,
    197     SMP_BR_STATE_MAX
    198 };
    199 typedef UINT8 tSMP_BR_STATE;
    200 
    201 /* random and encrption activity state */
    202 enum
    203 {
    204     SMP_GEN_COMPARE = 1,
    205     SMP_GEN_CONFIRM,
    206 
    207     SMP_GEN_DIV_LTK,
    208     SMP_GEN_DIV_CSRK,
    209     SMP_GEN_RAND_V,
    210     SMP_GEN_TK,
    211     SMP_GEN_SRAND_MRAND,
    212     SMP_GEN_SRAND_MRAND_CONT,
    213     SMP_GENERATE_PRIVATE_KEY_0_7,
    214     SMP_GENERATE_PRIVATE_KEY_8_15,
    215     SMP_GENERATE_PRIVATE_KEY_16_23,
    216     SMP_GENERATE_PRIVATE_KEY_24_31,
    217     SMP_GEN_NONCE_0_7,
    218     SMP_GEN_NONCE_8_15
    219 };
    220 
    221 enum
    222 {
    223     SMP_KEY_TYPE_TK,
    224     SMP_KEY_TYPE_CFM,
    225     SMP_KEY_TYPE_CMP,
    226     SMP_KEY_TYPE_PEER_DHK_CHCK,
    227     SMP_KEY_TYPE_STK,
    228     SMP_KEY_TYPE_LTK
    229 };
    230 typedef struct
    231 {
    232     UINT8   key_type;
    233     UINT8*  p_data;
    234 }tSMP_KEY;
    235 
    236 typedef union
    237 {
    238     UINT8       *p_data;    /* UINT8 type data pointer */
    239     tSMP_KEY    key;
    240     UINT16      reason;
    241     UINT32      passkey;
    242     tSMP_OOB_DATA_TYPE  req_oob_type;
    243 }tSMP_INT_DATA;
    244 
    245 /* internal status mask */
    246 #define SMP_PAIR_FLAGS_WE_STARTED_DD           (1)
    247 #define SMP_PAIR_FLAGS_PEER_STARTED_DD         (1 << 1)
    248 #define SMP_PAIR_FLAGS_CMD_CONFIRM             (1 << SMP_OPCODE_CONFIRM) /* 1 << 3 */
    249 #define SMP_PAIR_FLAG_ENC_AFTER_PAIR           (1 << 4)
    250 #define SMP_PAIR_FLAG_HAVE_PEER_DHK_CHK   (1 << 5) /* used on slave to resolve race condition */
    251 #define SMP_PAIR_FLAG_HAVE_PEER_PUBL_KEY  (1 << 6) /* used on slave to resolve race condition */
    252 #define SMP_PAIR_FLAG_HAVE_PEER_COMM      (1 << 7) /* used to resolve race condition */
    253 #define SMP_PAIR_FLAG_HAVE_LOCAL_PUBL_KEY (1 << 8) /* used on slave to resolve race condition */
    254 
    255 /* check if authentication requirement need MITM protection */
    256 #define SMP_NO_MITM_REQUIRED(x)  (((x) & SMP_AUTH_YN_BIT) == 0)
    257 
    258 #define SMP_ENCRYT_KEY_SIZE                16
    259 #define SMP_ENCRYT_DATA_SIZE               16
    260 #define SMP_ECNCRPYT_STATUS                HCI_SUCCESS
    261 
    262 typedef struct
    263 {
    264     BD_ADDR bd_addr;
    265     BT_HDR* p_copy;
    266 } tSMP_REQ_Q_ENTRY;
    267 
    268 /* SMP control block */
    269 typedef struct
    270 {
    271     tSMP_CALLBACK   *p_callback;
    272     alarm_t         *smp_rsp_timer_ent;
    273     UINT8           trace_level;
    274     BD_ADDR         pairing_bda;
    275     tSMP_STATE      state;
    276     BOOLEAN         derive_lk;
    277     BOOLEAN         id_addr_rcvd;
    278     tBLE_ADDR_TYPE  id_addr_type;
    279     BD_ADDR         id_addr;
    280     BOOLEAN         smp_over_br;
    281     tSMP_BR_STATE   br_state;           /* if SMP over BR/ERD has priority over SMP */
    282     UINT8           failure;
    283     UINT8           status;
    284     UINT8           role;
    285     UINT16          flags;
    286     UINT8           cb_evt;
    287     tSMP_SEC_LEVEL  sec_level;
    288     BOOLEAN         connect_initialized;
    289     BT_OCTET16      confirm;
    290     BT_OCTET16      rconfirm;
    291     BT_OCTET16      rrand;                      /* for SC this is peer nonce */
    292     BT_OCTET16      rand;                       /* for SC this is local nonce */
    293     BT_OCTET32      private_key;
    294     BT_OCTET32      dhkey;
    295     BT_OCTET16      commitment;
    296     BT_OCTET16      remote_commitment;
    297     BT_OCTET16      local_random;               /* local randomizer - passkey or OOB randomizer */
    298     BT_OCTET16      peer_random;                /* peer randomizer - passkey or OOB randomizer */
    299     BT_OCTET16      dhkey_check;
    300     BT_OCTET16      remote_dhkey_check;
    301     tSMP_PUBLIC_KEY loc_publ_key;
    302     tSMP_PUBLIC_KEY peer_publ_key;
    303     tSMP_OOB_DATA_TYPE  req_oob_type;
    304     tSMP_SC_OOB_DATA    sc_oob_data;
    305     tSMP_IO_CAP     peer_io_caps;
    306     tSMP_IO_CAP     local_io_capability;
    307     tSMP_OOB_FLAG   peer_oob_flag;
    308     tSMP_OOB_FLAG   loc_oob_flag;
    309     tSMP_AUTH_REQ   peer_auth_req;
    310     tSMP_AUTH_REQ   loc_auth_req;
    311     BOOLEAN         secure_connections_only_mode_required;/* TRUE if locally SM is required to operate */
    312                                             /* either in Secure Connections mode or not at all */
    313     tSMP_ASSO_MODEL selected_association_model;
    314     BOOLEAN         le_secure_connections_mode_is_used;
    315     BOOLEAN le_sc_kp_notif_is_used;
    316     tSMP_SC_KEY_TYPE local_keypress_notification;
    317     tSMP_SC_KEY_TYPE peer_keypress_notification;
    318     UINT8           round;       /* authentication stage 1 round for passkey association model */
    319     UINT32          number_to_display;
    320     BT_OCTET16      mac_key;
    321     UINT8           peer_enc_size;
    322     UINT8           loc_enc_size;
    323     UINT8           peer_i_key;
    324     UINT8           peer_r_key;
    325     UINT8           local_i_key;
    326     UINT8           local_r_key;
    327 
    328     BT_OCTET16      tk;
    329     BT_OCTET16      ltk;
    330     UINT16          div;
    331     BT_OCTET16      csrk;  /* storage for local CSRK */
    332     UINT16          ediv;
    333     BT_OCTET8       enc_rand;
    334     UINT8           rand_enc_proc_state;
    335     UINT8           addr_type;
    336     BD_ADDR         local_bda;
    337     BOOLEAN         is_pair_cancel;
    338     BOOLEAN         discard_sec_req;
    339     UINT8           rcvd_cmd_code;
    340     UINT8           rcvd_cmd_len;
    341     UINT16          total_tx_unacked;
    342     BOOLEAN         wait_for_authorization_complete;
    343     UINT8           cert_failure; /*failure case for certification */
    344     alarm_t         *delayed_auth_timer_ent;
    345 }tSMP_CB;
    346 
    347 /* Server Action functions are of this type */
    348 typedef void (*tSMP_ACT)(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    349 
    350 
    351 #ifdef __cplusplus
    352 extern "C"
    353 {
    354 #endif
    355 
    356 #if SMP_DYNAMIC_MEMORY == FALSE
    357 extern tSMP_CB  smp_cb;
    358 #else
    359 extern tSMP_CB *smp_cb_ptr;
    360 #define smp_cb (*smp_cb_ptr)
    361 #endif
    362 
    363 #ifdef __cplusplus
    364 }
    365 #endif
    366 
    367 /* Functions provided by att_main.c */
    368 extern void smp_init (void);
    369 
    370 /* smp main */
    371 extern void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data);
    372 
    373 extern void smp_proc_sec_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    374 extern void  smp_set_fail_nc (BOOLEAN enable);
    375 extern void  smp_set_fail_conf (BOOLEAN enable);
    376 extern void  smp_set_passk_entry_fail(BOOLEAN enable);
    377 extern void  smp_set_oob_fail(BOOLEAN enable);
    378 extern void  smp_set_peer_sc_notif(BOOLEAN enable);
    379 extern void smp_aes_cmac_rfc4493_chk (UINT8 *key, UINT8 *msg, UINT8 msg_len,
    380                                               UINT8 mac_len, UINT8 *mac);
    381 extern void smp_f4_calc_chk (UINT8 *U, UINT8 *V, UINT8 *X, UINT8 *Z, UINT8 *mac);
    382 extern void smp_g2_calc_chk (UINT8 *U, UINT8 *V, UINT8 *X, UINT8 *Y);
    383 extern void smp_h6_calc_chk (UINT8 *key, UINT8 *key_id, UINT8 *mac);
    384 extern void smp_f5_key_calc_chk (UINT8 *w, UINT8 *mac);
    385 extern void smp_f5_mackey_or_ltk_calc_chk(UINT8 *t, UINT8 *counter,
    386                                                   UINT8 *key_id, UINT8 *n1,
    387                                                   UINT8 *n2, UINT8 *a1, UINT8 *a2,
    388                                                   UINT8 *length, UINT8 *mac);
    389 extern void smp_f5_calc_chk (UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
    390                                     UINT8 *mac_key, UINT8 *ltk);
    391 extern void smp_f6_calc_chk (UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *r,
    392                                      UINT8 *iocap, UINT8 *a1, UINT8 *a2, UINT8 *mac);
    393 /* smp_main */
    394 extern void         smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data);
    395 extern tSMP_STATE   smp_get_state(void);
    396 extern void         smp_set_state(tSMP_STATE state);
    397 
    398 /* smp_br_main */
    399 extern void smp_br_state_machine_event(tSMP_CB *p_cb, tSMP_BR_EVENT event, void *p_data);
    400 extern tSMP_BR_STATE    smp_get_br_state(void);
    401 extern void             smp_set_br_state(tSMP_BR_STATE state);
    402 
    403 
    404 /* smp_act.c */
    405 extern void smp_send_pair_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    406 extern void smp_send_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    407 extern void smp_send_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    408 extern void smp_send_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    409 extern void smp_send_pair_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    410 extern void smp_send_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    411 extern void smp_send_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    412 extern void smp_send_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    413 extern void smp_proc_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    414 extern void smp_proc_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    415 extern void smp_proc_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    416 extern void smp_process_pairing_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    417 extern void smp_proc_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    418 extern void smp_proc_master_id(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    419 extern void smp_proc_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    420 extern void smp_proc_id_addr(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    421 extern void smp_proc_sec_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    422 extern void smp_proc_sec_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    423 extern void smp_proc_sl_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    424 extern void smp_start_enc(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    425 extern void smp_enc_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    426 extern void smp_proc_discard(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    427 extern void smp_pairing_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    428 extern void smp_decide_association_model(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    429 extern void smp_send_app_cback(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    430 extern void smp_proc_compare(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    431 extern void smp_check_auth_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    432 extern void smp_process_io_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    433 extern void smp_send_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    434 extern void smp_send_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    435 extern void smp_send_csrk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    436 extern void smp_send_ltk_reply(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    437 extern void smp_proc_pair_cmd(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    438 extern void smp_pair_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    439 extern void smp_idle_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    440 extern void smp_send_pair_rsp(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    441 extern void smp_key_distribution(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    442 extern void smp_proc_srk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    443 extern void smp_generate_csrk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    444 extern void smp_fast_conn_param(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    445 extern void smp_key_pick_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    446 extern void smp_both_have_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    447 extern void smp_start_secure_connection_phase1(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    448 extern void smp_process_local_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    449 extern void smp_process_pairing_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    450 extern void smp_process_peer_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    451 extern void smp_process_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    452 extern void smp_match_dhkey_checks(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    453 extern void smp_process_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    454 extern void smp_move_to_secure_connections_phase2(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    455 extern void smp_phase_2_dhkey_checks_are_present(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    456 extern void smp_wait_for_both_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    457 extern void smp_start_passkey_verification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    458 extern void smp_process_secure_connection_oob_data(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    459 extern void smp_process_secure_connection_long_term_key(void);
    460 extern void smp_set_local_oob_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    461 extern void smp_set_local_oob_random_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    462 extern void smp_set_derive_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    463 extern void smp_derive_link_key_from_long_term_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    464 extern void smp_br_process_pairing_command(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    465 extern void smp_br_process_security_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    466 extern void smp_br_process_slave_keys_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    467 extern void smp_br_send_pair_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    468 extern void smp_br_check_authorization_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    469 extern void smp_br_select_next_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    470 extern void smp_br_process_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    471 extern void smp_key_distribution_by_transport(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    472 extern void smp_br_pairing_complete(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    473 
    474 /* smp_l2c */
    475 extern void smp_l2cap_if_init (void);
    476 extern void smp_data_ind (BD_ADDR bd_addr, BT_HDR *p_buf);
    477 
    478 /* smp_util.c */
    479 extern BOOLEAN smp_send_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
    480 extern void smp_cb_cleanup(tSMP_CB *p_cb);
    481 extern void smp_reset_control_value(tSMP_CB *p_cb);
    482 extern void smp_proc_pairing_cmpl(tSMP_CB *p_cb);
    483 extern void smp_convert_string_to_tk(BT_OCTET16 tk, UINT32 passkey);
    484 extern void smp_mask_enc_key(UINT8 loc_enc_size, UINT8 * p_data);
    485 extern void smp_rsp_timeout(void *data);
    486 extern void smp_delayed_auth_complete_timeout(void *data);
    487 extern void smp_xor_128(BT_OCTET16 a, BT_OCTET16 b);
    488 extern BOOLEAN smp_encrypt_data (UINT8 *key, UINT8 key_len,
    489                                  UINT8 *plain_text, UINT8 pt_len,
    490                                  tSMP_ENC *p_out);
    491 extern BOOLEAN smp_command_has_invalid_parameters(tSMP_CB *p_cb);
    492 extern void smp_reject_unexpected_pairing_command(BD_ADDR bd_addr);
    493 extern tSMP_ASSO_MODEL smp_select_association_model(tSMP_CB *p_cb);
    494 extern void smp_reverse_array(UINT8 *arr, UINT8 len);
    495 extern UINT8 smp_calculate_random_input(UINT8 *random, UINT8 round);
    496 extern void smp_collect_local_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb);
    497 extern void smp_collect_peer_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb);
    498 extern void smp_collect_local_ble_address(UINT8 *le_addr, tSMP_CB *p_cb);
    499 extern void smp_collect_peer_ble_address(UINT8 *le_addr, tSMP_CB *p_cb);
    500 extern BOOLEAN smp_check_commitment(tSMP_CB *p_cb);
    501 extern void smp_save_secure_connections_long_term_key(tSMP_CB *p_cb);
    502 extern BOOLEAN smp_calculate_f5_mackey_and_long_term_key(tSMP_CB *p_cb);
    503 extern void smp_remove_fixed_channel(tSMP_CB *p_cb);
    504 extern BOOLEAN smp_request_oob_data(tSMP_CB *p_cb);
    505 
    506 /* smp_keys.c */
    507 extern void smp_generate_srand_mrand_confirm (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    508 extern void smp_generate_compare (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    509 extern void smp_generate_stk (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    510 extern void smp_generate_ltk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    511 extern void smp_generate_passkey (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    512 extern void smp_generate_rand_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    513 extern void smp_create_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    514 extern void smp_use_oob_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    515 extern void smp_compute_dhkey(tSMP_CB *p_cb);
    516 extern void smp_calculate_local_commitment(tSMP_CB *p_cb);
    517 extern void smp_calculate_peer_commitment(tSMP_CB *p_cb, BT_OCTET16 output_buf);
    518 extern void smp_calculate_numeric_comparison_display_number(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    519 extern void smp_calculate_local_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    520 extern void smp_calculate_peer_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
    521 extern void smp_start_nonce_generation(tSMP_CB *p_cb);
    522 extern BOOLEAN smp_calculate_link_key_from_long_term_key(tSMP_CB *p_cb);
    523 extern BOOLEAN smp_calculate_long_term_key_from_link_key(tSMP_CB *p_cb);
    524 extern void smp_calculate_f4(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 z, UINT8 *c);
    525 extern UINT32 smp_calculate_g2(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 *y);
    526 extern BOOLEAN smp_calculate_f5(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
    527                            UINT8 *mac_key, UINT8 *ltk);
    528 extern BOOLEAN smp_calculate_f5_mackey_or_long_term_key(UINT8 *t, UINT8 *counter,
    529                                          UINT8 *key_id, UINT8 *n1, UINT8 *n2, UINT8 *a1,
    530                                          UINT8 *a2, UINT8 *length, UINT8 *mac);
    531 extern BOOLEAN smp_calculate_f5_key(UINT8 *w, UINT8 *t);
    532 extern BOOLEAN smp_calculate_f6(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *r, UINT8 *iocap,
    533                                UINT8 *a1, UINT8 *a2, UINT8 *f3);
    534 extern BOOLEAN smp_calculate_h6(UINT8 *w, UINT8 *keyid, UINT8 *h2);
    535 #if SMP_DEBUG == TRUE
    536 extern void smp_debug_print_nbyte_little_endian (UINT8 *p, const UINT8 *key_name,
    537                                                  UINT8 len);
    538 #endif
    539 
    540 /* smp_cmac.c */
    541 extern BOOLEAN aes_cipher_msg_auth_code(BT_OCTET16 key, UINT8 *input, UINT16 length,
    542                                                  UINT16 tlen, UINT8 *p_signature);
    543 extern void print128(BT_OCTET16 x, const UINT8 *key_name);
    544 
    545 #endif
    546 
    547 #endif /* SMP_INT_H */
    548