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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