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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 #ifndef  GATT_INT_H
20 #define  GATT_INT_H
21 
22 #include "bt_target.h"
23 
24 
25 #include "bt_trace.h"
26 #include "gatt_api.h"
27 #include "btm_ble_api.h"
28 #include "btu.h"
29 
30 #include <string.h>
31 
32 
33 #define GATT_CREATE_CONN_ID(tcb_idx, gatt_if)  ((UINT16) ((((UINT8)(tcb_idx) ) << 8) | ((UINT8) (gatt_if))))
34 #define GATT_GET_TCB_IDX(conn_id)  ((UINT8) (((UINT16) (conn_id)) >> 8))
35 #define GATT_GET_GATT_IF(conn_id)  ((tGATT_IF)((UINT8) (conn_id)))
36 
37 #define GATT_GET_SR_REG_PTR(index) (&gatt_cb.sr_reg[(UINT8) (index)]);
38 #define GATT_TRANS_ID_MAX                   0x0fffffff      /* 4 MSB is reserved */
39 
40 /* security action for GATT write and read request */
41 #define GATT_SEC_NONE              0
42 #define GATT_SEC_OK                1
43 #define GATT_SEC_SIGN_DATA         2   /* compute the signature for the write cmd */
44 #define GATT_SEC_ENCRYPT           3    /* encrypt the link with current key */
45 #define GATT_SEC_ENCRYPT_NO_MITM   4    /* unauthenticated encryption or better */
46 #define GATT_SEC_ENCRYPT_MITM      5    /* authenticated encryption */
47 #define GATT_SEC_ENC_PENDING       6   /* wait for link encryption pending */
48 typedef UINT8 tGATT_SEC_ACTION;
49 
50 
51 #define GATT_ATTR_OP_SPT_MTU               (0x00000001 << 0)
52 #define GATT_ATTR_OP_SPT_FIND_INFO         (0x00000001 << 1)
53 #define GATT_ATTR_OP_SPT_FIND_BY_TYPE      (0x00000001 << 2)
54 #define GATT_ATTR_OP_SPT_READ_BY_TYPE      (0x00000001 << 3)
55 #define GATT_ATTR_OP_SPT_READ              (0x00000001 << 4)
56 #define GATT_ATTR_OP_SPT_MULT_READ         (0x00000001 << 5)
57 #define GATT_ATTR_OP_SPT_READ_BLOB         (0x00000001 << 6)
58 #define GATT_ATTR_OP_SPT_READ_BY_GRP_TYPE  (0x00000001 << 7)
59 #define GATT_ATTR_OP_SPT_WRITE             (0x00000001 << 8)
60 #define GATT_ATTR_OP_SPT_WRITE_CMD         (0x00000001 << 9)
61 #define GATT_ATTR_OP_SPT_PREP_WRITE        (0x00000001 << 10)
62 #define GATT_ATTR_OP_SPT_EXE_WRITE         (0x00000001 << 11)
63 #define GATT_ATTR_OP_SPT_HDL_VALUE_CONF    (0x00000001 << 12)
64 #define GATT_ATTR_OP_SP_SIGN_WRITE        (0x00000001 << 13)
65 
66 #define GATT_INDEX_INVALID  0xff
67 
68 #define GATT_PENDING_REQ_NONE    0
69 
70 
71 #define GATT_WRITE_CMD_MASK  0xc0  /*0x1100-0000*/
72 #define GATT_AUTH_SIGN_MASK  0x80  /*0x1000-0000*/
73 #define GATT_AUTH_SIGN_LEN   12
74 
75 #define GATT_HDR_SIZE           3 /* 1B opcode + 2B handle */
76 
77 /* wait for ATT cmd response timeout value */
78 #define GATT_WAIT_FOR_RSP_TOUT       30
79 #define GATT_WAIT_FOR_DISC_RSP_TOUT  5
80 #define GATT_REQ_RETRY_LIMIT         2
81 
82 /* characteristic descriptor type */
83 #define GATT_DESCR_EXT_DSCPTOR   1    /* Characteristic Extended Properties */
84 #define GATT_DESCR_USER_DSCPTOR  2    /* Characteristic User Description    */
85 #define GATT_DESCR_CLT_CONFIG    3    /* Client Characteristic Configuration */
86 #define GATT_DESCR_SVR_CONFIG    4    /* Server Characteristic Configuration */
87 #define GATT_DESCR_PRES_FORMAT   5    /* Characteristic Presentation Format */
88 #define GATT_DESCR_AGGR_FORMAT   6    /* Characteristic Aggregate Format */
89 #define GATT_DESCR_VALID_RANGE   7    /* Characteristic Valid Range */
90 #define GATT_DESCR_UNKNOWN       0xff
91 
92 #define GATT_SEC_FLAG_LKEY_UNAUTHED     BTM_SEC_FLAG_LKEY_KNOWN
93 #define GATT_SEC_FLAG_LKEY_AUTHED       BTM_SEC_FLAG_LKEY_AUTHED
94 #define GATT_SEC_FLAG_ENCRYPTED         BTM_SEC_FLAG_ENCRYPTED
95 typedef UINT8 tGATT_SEC_FLAG;
96 
97 /* Find Information Response Type
98 */
99 #define GATT_INFO_TYPE_PAIR_16      0x01
100 #define GATT_INFO_TYPE_PAIR_128     0x02
101 
102 /*  GATT client FIND_TYPE_VALUE_Request data */
103 typedef struct
104 {
105     tBT_UUID        uuid;           /* type of attribute to be found */
106     UINT16          s_handle;       /* starting handle */
107     UINT16          e_handle;       /* ending handle */
108     UINT16          value_len;      /* length of the attribute value */
109     UINT8           value[GATT_MAX_MTU_SIZE];       /* pointer to the attribute value to be found */
110 } tGATT_FIND_TYPE_VALUE;
111 
112 /* client request message to ATT protocol
113 */
114 typedef union
115 {
116     tGATT_READ_BY_TYPE      browse;     /* read by type request */
117     tGATT_FIND_TYPE_VALUE   find_type_value;/* find by type value */
118     tGATT_READ_MULTI        read_multi;   /* read multiple request */
119     tGATT_READ_PARTIAL      read_blob;    /* read blob */
120     tGATT_VALUE             attr_value;   /* write request */
121                                           /* prepare write */
122     /* write blob */
123     UINT16                  handle;        /* read,  handle value confirmation */
124     UINT16                  mtu;
125     tGATT_EXEC_FLAG         exec_write;    /* execute write */
126 }tGATT_CL_MSG;
127 
128 /* error response strucutre */
129 typedef struct
130 {
131     UINT16  handle;
132     UINT8   cmd_code;
133     UINT8   reason;
134 }tGATT_ERROR;
135 
136 /* server response message to ATT protocol
137 */
138 typedef union
139 {
140     /* data type            member          event   */
141     tGATT_VALUE             attr_value;     /* READ, HANDLE_VALUE_IND, PREPARE_WRITE */
142                                             /* READ_BLOB, READ_BY_TYPE */
143     tGATT_ERROR             error;          /* ERROR_RSP */
144     UINT16                  handle;         /* WRITE, WRITE_BLOB */
145     UINT16                  mtu;            /* exchange MTU request */
146 } tGATT_SR_MSG;
147 
148 /* Characteristic declaration attribute value
149 */
150 typedef struct
151 {
152     tGATT_CHAR_PROP             property;
153     UINT16                      char_val_handle;
154 } tGATT_CHAR_DECL;
155 
156 /* attribute value maintained in the server database
157 */
158 typedef union
159 {
160     tBT_UUID                uuid;               /* service declaration */
161     tGATT_CHAR_DECL         char_decl;          /* characteristic declaration */
162     tGATT_INCL_SRVC         incl_handle;        /* included service */
163 
164 } tGATT_ATTR_VALUE;
165 
166 /* Attribute UUID type
167 */
168 #define GATT_ATTR_UUID_TYPE_16      0
169 #define GATT_ATTR_UUID_TYPE_128     1
170 #define GATT_ATTR_UUID_TYPE_32      2
171 typedef UINT8   tGATT_ATTR_UUID_TYPE;
172 
173 /* 16 bits UUID Attribute in server database
174 */
175 typedef struct
176 {
177     void                                *p_next;  /* pointer to the next attribute,
178                                                     either tGATT_ATTR16 or tGATT_ATTR128 */
179     tGATT_ATTR_VALUE                    *p_value;
180     tGATT_ATTR_UUID_TYPE                uuid_type;
181     tGATT_PERM                          permission;
182     UINT16                              handle;
183     UINT16                              uuid;
184 } tGATT_ATTR16;
185 
186 /* 32 bits UUID Attribute in server database
187 */
188 typedef struct
189 {
190     void                                *p_next;  /* pointer to the next attribute,
191                                                     either tGATT_ATTR16, tGATT_ATTR32 or tGATT_ATTR128 */
192     tGATT_ATTR_VALUE                    *p_value;
193     tGATT_ATTR_UUID_TYPE                uuid_type;
194     tGATT_PERM                          permission;
195     UINT16                              handle;
196     UINT32                              uuid;
197 } tGATT_ATTR32;
198 
199 
200 /* 128 bits UUID Attribute in server database
201 */
202 typedef struct
203 {
204     void                                *p_next;  /* pointer to the next attribute,
205                                                     either tGATT_ATTR16 or tGATT_ATTR128 */
206     tGATT_ATTR_VALUE                    *p_value;
207     tGATT_ATTR_UUID_TYPE                uuid_type;
208     tGATT_PERM                          permission;
209     UINT16                              handle;
210     UINT8                               uuid[LEN_UUID_128];
211 } tGATT_ATTR128;
212 
213 /* Service Database definition
214 */
215 typedef struct
216 {
217     void            *p_attr_list;               /* pointer to the first attribute,
218                                                   either tGATT_ATTR16 or tGATT_ATTR128 */
219     UINT8           *p_free_mem;                /* Pointer to free memory       */
220     BUFFER_Q        svc_buffer;                 /* buffer queue used for service database */
221     UINT32          mem_free;                   /* Memory still available       */
222     UINT16          end_handle;                 /* Last handle number           */
223     UINT16          next_handle;                /* Next usable handle value     */
224 } tGATT_SVC_DB;
225 
226 /* Data Structure used for GATT server                                        */
227 /* A GATT registration record consists of a handle, and 1 or more attributes  */
228 /* A service registration information record consists of beginning and ending */
229 /* attribute handle, service UUID and a set of GATT server callback.          */
230 typedef struct
231 {
232     tGATT_SVC_DB    *p_db;      /* pointer to the service database */
233     tBT_UUID        app_uuid;           /* applicatino UUID */
234     UINT32          sdp_handle; /* primamry service SDP handle */
235     UINT16          service_instance;   /* service instance number */
236     UINT16          type;       /* service type UUID, primary or secondary */
237     UINT16          s_hdl;      /* service starting handle */
238     UINT16          e_hdl;      /* service ending handle */
239     tGATT_IF        gatt_if;    /* this service is belong to which application */
240     BOOLEAN         in_use;
241 } tGATT_SR_REG;
242 
243 #define GATT_LISTEN_TO_ALL  0xff
244 #define GATT_LISTEN_TO_NONE 0
245 
246 /* Data Structure used for GATT server */
247 /* An GATT registration record consists of a handle, and 1 or more attributes */
248 /* A service registration information record consists of beginning and ending */
249 /* attribute handle, service UUID and a set of GATT server callback.          */
250 
251 typedef struct
252 {
253     tBT_UUID     app_uuid128;
254     tGATT_CBACK  app_cb;
255     tGATT_IF     gatt_if; /* one based */
256     BOOLEAN      in_use;
257     UINT8        listening; /* if adv for all has been enabled */
258 } tGATT_REG;
259 
260 
261 
262 
263 /* command queue for each connection */
264 typedef struct
265 {
266     BT_HDR      *p_cmd;
267     UINT16      clcb_idx;
268     UINT8       op_code;
269     BOOLEAN     to_send;
270 }tGATT_CMD_Q;
271 
272 
273 #if GATT_MAX_SR_PROFILES <= 8
274 typedef UINT8 tGATT_APP_MASK;
275 #elif GATT_MAX_SR_PROFILES <= 16
276 typedef UINT16 tGATT_APP_MASK;
277 #elif GATT_MAX_SR_PROFILES <= 32
278 typedef UINT32 tGATT_APP_MASK;
279 #endif
280 
281 /* command details for each connection */
282 typedef struct
283 {
284     BT_HDR          *p_rsp_msg;
285     UINT32           trans_id;
286     tGATT_READ_MULTI multi_req;
287     BUFFER_Q         multi_rsp_q;
288     UINT16           handle;
289     UINT8            op_code;
290     UINT8            status;
291     UINT8            cback_cnt[GATT_MAX_APPS];
292 } tGATT_SR_CMD;
293 
294 #define     GATT_CH_CLOSE               0
295 #define     GATT_CH_CLOSING             1
296 #define     GATT_CH_CONN                2
297 #define     GATT_CH_CFG                 3
298 #define     GATT_CH_OPEN                4
299 #define     GATT_CH_W4_SEC_COMP         5
300 #define     GATT_CH_W4_DATA_SIGN_COMP   6
301 
302 typedef UINT8 tGATT_CH_STATE;
303 
304 #define GATT_GATT_START_HANDLE  1
305 #define GATT_GAP_START_HANDLE   20
306 #define GATT_APP_START_HANDLE   40
307 
308 typedef struct hdl_cfg
309 {
310     UINT16               gatt_start_hdl;
311     UINT16               gap_start_hdl;
312     UINT16               app_start_hdl;
313 }tGATT_HDL_CFG;
314 
315 typedef struct hdl_list_elem
316 {
317     struct              hdl_list_elem *p_next;
318     struct              hdl_list_elem *p_prev;
319     tGATTS_HNDL_RANGE   asgn_range; /* assigned handle range */
320     tGATT_SVC_DB        svc_db;
321     BOOLEAN             in_use;
322 }tGATT_HDL_LIST_ELEM;
323 
324 typedef struct
325 {
326     tGATT_HDL_LIST_ELEM  *p_first;
327     tGATT_HDL_LIST_ELEM  *p_last;
328     UINT16               count;
329 }tGATT_HDL_LIST_INFO;
330 
331 
332 typedef struct srv_list_elem
333 {
334     struct              srv_list_elem *p_next;
335     struct              srv_list_elem *p_prev;
336     UINT16              s_hdl;
337     UINT8               i_sreg;
338     BOOLEAN             in_use;
339     BOOLEAN             is_primary;
340 }tGATT_SRV_LIST_ELEM;
341 
342 
343 typedef struct
344 {
345     tGATT_SRV_LIST_ELEM  *p_last_primary;
346     tGATT_SRV_LIST_ELEM  *p_first;
347     tGATT_SRV_LIST_ELEM  *p_last;
348     UINT16               count;
349 }tGATT_SRV_LIST_INFO;
350 
351 typedef struct
352 {
353     BUFFER_Q        pending_enc_clcb;   /* pending encryption channel q */
354     tGATT_SEC_ACTION sec_act;
355     BD_ADDR         peer_bda;
356     tBT_TRANSPORT   transport;
357     UINT32          trans_id;
358 
359     UINT16          att_lcid;           /* L2CAP channel ID for ATT */
360     UINT16          payload_size;
361 
362     tGATT_CH_STATE  ch_state;
363     UINT8           ch_flags;
364 
365     tGATT_IF         app_hold_link[GATT_MAX_APPS];
366 
367     /* server needs */
368     /* server response data */
369     tGATT_SR_CMD    sr_cmd;
370     UINT16          indicate_handle;
371     BUFFER_Q        pending_ind_q;
372 
373     TIMER_LIST_ENT  conf_timer_ent;     /* peer confirm to indication timer */
374 
375     UINT8            prep_cnt[GATT_MAX_APPS];
376     UINT8            ind_count;
377 
378     tGATT_CMD_Q       cl_cmd_q[GATT_CL_MAX_LCB];
379     TIMER_LIST_ENT    ind_ack_timer_ent;    /* local app confirm to indication timer */
380     UINT8             pending_cl_req;
381     UINT8             next_slot_inq;    /* index of next available slot in queue */
382 
383     BOOLEAN         in_use;
384     UINT8           tcb_idx;
385 } tGATT_TCB;
386 
387 
388 /* logic channel */
389 typedef struct
390 {
391     UINT16                  next_disc_start_hdl;   /* starting handle for the next inc srvv discovery */
392     tGATT_DISC_RES          result;
393     BOOLEAN                 wait_for_read_rsp;
394 } tGATT_READ_INC_UUID128;
395 typedef struct
396 {
397     tGATT_TCB               *p_tcb;         /* associated TCB of this CLCB */
398     tGATT_REG               *p_reg;        /* owner of this CLCB */
399     UINT8                   sccb_idx;
400     UINT8                   *p_attr_buf;    /* attribute buffer for read multiple, prepare write */
401     tBT_UUID                uuid;
402     UINT16                  conn_id;        /* connection handle */
403     UINT16                  clcb_idx;
404     UINT16                  s_handle;       /* starting handle of the active request */
405     UINT16                  e_handle;       /* ending handle of the active request */
406     UINT16                  counter;        /* used as offset, attribute length, num of prepare write */
407     UINT16                  start_offset;
408     tGATT_AUTH_REQ          auth_req;       /* authentication requirement */
409     UINT8                   operation;      /* one logic channel can have one operation active */
410     UINT8                   op_subtype;     /* operation subtype */
411     UINT8                   status;         /* operation status */
412     BOOLEAN                 first_read_blob_after_read;
413     tGATT_READ_INC_UUID128  read_uuid128;
414     BOOLEAN                 in_use;
415     TIMER_LIST_ENT          rsp_timer_ent;  /* peer response timer */
416     UINT8                   retry_count;
417 
418 } tGATT_CLCB;
419 
420 typedef struct
421 {
422     tGATT_CLCB  *p_clcb;
423 }tGATT_PENDING_ENC_CLCB;
424 
425 
426 #define GATT_SIGN_WRITE             1
427 #define GATT_VERIFY_SIGN_DATA       2
428 
429 typedef struct
430 {
431     BT_HDR      hdr;
432     tGATT_CLCB  *p_clcb;
433 }tGATT_SIGN_WRITE_OP;
434 
435 typedef struct
436 {
437     BT_HDR      hdr;
438     tGATT_TCB   *p_tcb;
439     BT_HDR      *p_data;
440 
441 }tGATT_VERIFY_SIGN_OP;
442 
443 
444 typedef struct
445 {
446     UINT16                  clcb_idx;
447     BOOLEAN                 in_use;
448 } tGATT_SCCB;
449 
450 typedef struct
451 {
452     UINT16      handle;
453     UINT16      uuid;
454     UINT32      service_change;
455 }tGATT_SVC_CHG;
456 
457 typedef struct
458 {
459     tGATT_IF        gatt_if[GATT_MAX_APPS];
460     tGATT_IF        listen_gif[GATT_MAX_APPS];
461     BD_ADDR         remote_bda;
462     BOOLEAN         in_use;
463 }tGATT_BG_CONN_DEV;
464 
465 #define GATT_SVC_CHANGED_CONNECTING        1   /* wait for connection */
466 #define GATT_SVC_CHANGED_SERVICE           2   /* GATT service discovery */
467 #define GATT_SVC_CHANGED_CHARACTERISTIC    3   /* service change char discovery */
468 #define GATT_SVC_CHANGED_DESCRIPTOR        4   /* service change CCC discoery */
469 #define GATT_SVC_CHANGED_CONFIGURE_CCCD    5   /* config CCC */
470 
471 typedef struct
472 {
473     UINT16  conn_id;
474     BOOLEAN in_use;
475     BOOLEAN connected;
476     BD_ADDR bda;
477     tBT_TRANSPORT   transport;
478 
479     /* GATT service change CCC related variables */
480     UINT8       ccc_stage;
481     UINT8       ccc_result;
482     UINT16      s_handle;
483     UINT16      e_handle;
484 }tGATT_PROFILE_CLCB;
485 
486 typedef struct
487 {
488     tGATT_TCB           tcb[GATT_MAX_PHY_CHANNEL];
489     BUFFER_Q            sign_op_queue;
490 
491     tGATT_SR_REG        sr_reg[GATT_MAX_SR_PROFILES];
492     UINT16              next_handle;    /* next available handle */
493     tGATT_SVC_CHG       gattp_attr;     /* GATT profile attribute service change */
494     tGATT_IF            gatt_if;
495     tGATT_HDL_LIST_INFO hdl_list_info;
496     tGATT_HDL_LIST_ELEM hdl_list[GATT_MAX_SR_PROFILES];
497     tGATT_SRV_LIST_INFO srv_list_info;
498     tGATT_SRV_LIST_ELEM srv_list[GATT_MAX_SR_PROFILES];
499 
500     BUFFER_Q            srv_chg_clt_q;   /* service change clients queue */
501     BUFFER_Q            pending_new_srv_start_q; /* pending new service start queue */
502     tGATT_REG           cl_rcb[GATT_MAX_APPS];
503     tGATT_CLCB          clcb[GATT_CL_MAX_LCB];  /* connection link control block*/
504     tGATT_SCCB          sccb[GATT_MAX_SCCB];    /* sign complete callback function GATT_MAX_SCCB <= GATT_CL_MAX_LCB */
505     UINT8               trace_level;
506     UINT16              def_mtu_size;
507 
508 #if GATT_CONFORMANCE_TESTING == TRUE
509     BOOLEAN             enable_err_rsp;
510     UINT8               req_op_code;
511     UINT8               err_status;
512     UINT16              handle;
513 #endif
514 
515     tGATT_PROFILE_CLCB  profile_clcb[GATT_MAX_APPS];
516     UINT16              handle_of_h_r;          /* Handle of the handles reused characteristic value */
517 
518     tGATT_APPL_INFO       cb_info;
519 
520 
521 
522     tGATT_HDL_CFG           hdl_cfg;
523     tGATT_BG_CONN_DEV       bgconn_dev[GATT_MAX_BG_CONN_DEV];
524 
525 } tGATT_CB;
526 
527 
528 #define GATT_SIZE_OF_SRV_CHG_HNDL_RANGE 4
529 
530 #ifdef __cplusplus
531 extern "C" {
532 #endif
533 
534 /* Global GATT data */
535 #if GATT_DYNAMIC_MEMORY == FALSE
536 GATT_API extern tGATT_CB  gatt_cb;
537 #else
538 GATT_API extern tGATT_CB *gatt_cb_ptr;
539 #define gatt_cb (*gatt_cb_ptr)
540 #endif
541 
542 #if GATT_CONFORMANCE_TESTING == TRUE
543 GATT_API extern void gatt_set_err_rsp(BOOLEAN enable, UINT8 req_op_code, UINT8 err_status);
544 #endif
545 
546 #ifdef __cplusplus
547 }
548 #endif
549 
550 /* internal functions */
551 extern void gatt_init (void);
552 
553 /* from gatt_main.c */
554 extern BOOLEAN gatt_disconnect (tGATT_TCB *p_tcb);
555 extern BOOLEAN gatt_act_connect (tGATT_REG *p_reg, BD_ADDR bd_addr, tBT_TRANSPORT transport);
556 extern BOOLEAN gatt_connect (BD_ADDR rem_bda,  tGATT_TCB *p_tcb, tBT_TRANSPORT transport);
557 extern void gatt_data_process (tGATT_TCB *p_tcb, BT_HDR *p_buf);
558 extern void gatt_update_app_use_link_flag ( tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add, BOOLEAN check_acl_link);
559 
560 extern void gatt_profile_db_init(void);
561 extern void gatt_set_ch_state(tGATT_TCB *p_tcb, tGATT_CH_STATE ch_state);
562 extern tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB *p_tcb);
563 extern void gatt_init_srv_chg(void);
564 extern void gatt_proc_srv_chg (void);
565 extern void gatt_send_srv_chg_ind (BD_ADDR peer_bda);
566 extern void gatt_chk_srv_chg(tGATTS_SRV_CHG *p_srv_chg_clt);
567 extern void gatt_add_a_bonded_dev_for_srv_chg (BD_ADDR bda);
568 
569 /* from gatt_attr.c */
570 extern UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR bda);
571 
572 
573 /* Functions provided by att_protocol.c */
574 extern tGATT_STATUS attp_send_cl_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, tGATT_CL_MSG *p_msg);
575 extern BT_HDR *attp_build_sr_msg(tGATT_TCB *p_tcb, UINT8 op_code, tGATT_SR_MSG *p_msg);
576 extern tGATT_STATUS attp_send_sr_msg (tGATT_TCB *p_tcb, BT_HDR *p_msg);
577 extern tGATT_STATUS attp_send_msg_to_l2cap(tGATT_TCB *p_tcb, BT_HDR *p_toL2CAP);
578 
579 /* utility functions */
580 extern UINT8 * gatt_dbg_op_name(UINT8 op_code);
581 extern UINT32 gatt_add_sdp_record (tBT_UUID *p_uuid, UINT16 start_hdl, UINT16 end_hdl);
582 extern BOOLEAN gatt_parse_uuid_from_cmd(tBT_UUID *p_uuid, UINT16 len, UINT8 **p_data);
583 extern UINT8 gatt_build_uuid_to_stream(UINT8 **p_dst, tBT_UUID uuid);
584 extern BOOLEAN gatt_uuid_compare(tBT_UUID src, tBT_UUID tar);
585 extern void gatt_convert_uuid32_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT32 uuid_32);
586 extern void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport, UINT8 *p_sec_flag, UINT8 *p_key_size);
587 extern void gatt_start_rsp_timer(UINT16 clcb_idx);
588 extern void gatt_start_conf_timer(tGATT_TCB    *p_tcb);
589 extern void gatt_rsp_timeout(TIMER_LIST_ENT *p_tle);
590 extern void gatt_ind_ack_timeout(TIMER_LIST_ENT *p_tle);
591 extern void gatt_start_ind_ack_timer(tGATT_TCB *p_tcb);
592 extern tGATT_STATUS gatt_send_error_rsp(tGATT_TCB *p_tcb, UINT8 err_code, UINT8 op_code, UINT16 handle, BOOLEAN deq);
593 extern void gatt_dbg_display_uuid(tBT_UUID bt_uuid);
594 extern tGATT_PENDING_ENC_CLCB* gatt_add_pending_enc_channel_clcb(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb );
595 
596 extern tGATTS_PENDING_NEW_SRV_START *gatt_sr_is_new_srv_chg(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
597 
598 extern BOOLEAN gatt_is_srv_chg_ind_pending (tGATT_TCB *p_tcb);
599 extern tGATTS_SRV_CHG *gatt_is_bda_in_the_srv_chg_clt_list (BD_ADDR bda);
600 
601 extern BOOLEAN gatt_find_the_connected_bda(UINT8 start_idx, BD_ADDR bda, UINT8 *p_found_idx, tBT_TRANSPORT *p_transport);
602 extern void gatt_set_srv_chg(void);
603 extern void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr);
604 extern tGATT_VALUE *gatt_add_pending_ind(tGATT_TCB  *p_tcb, tGATT_VALUE *p_ind);
605 extern tGATTS_PENDING_NEW_SRV_START *gatt_add_pending_new_srv_start( tGATTS_HNDL_RANGE *p_new_srv_start);
606 extern void gatt_free_srvc_db_buffer_app_id(tBT_UUID *p_app_id);
607 extern BOOLEAN gatt_update_listen_mode(void);
608 extern BOOLEAN gatt_cl_send_next_cmd_inq(tGATT_TCB *p_tcb);
609 
610 /* reserved handle list */
611 extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_app_id (tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
612 extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_handle(UINT16 handle);
613 extern tGATT_HDL_LIST_ELEM *gatt_alloc_hdl_buffer(void);
614 extern void gatt_free_hdl_buffer(tGATT_HDL_LIST_ELEM *p);
615 extern BOOLEAN gatt_is_last_attribute(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_start, tBT_UUID value);
616 extern void gatt_update_last_pri_srv_info(tGATT_SRV_LIST_INFO *p_list);
617 extern BOOLEAN gatt_add_a_srv_to_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_new);
618 extern BOOLEAN gatt_remove_a_srv_from_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_remove);
619 extern BOOLEAN gatt_add_an_item_to_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_new);
620 extern BOOLEAN gatt_remove_an_item_from_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_remove);
621 extern tGATTS_SRV_CHG *gatt_add_srv_chg_clt(tGATTS_SRV_CHG *p_srv_chg);
622 
623 /* for background connection */
624 extern BOOLEAN gatt_update_auto_connect_dev (tGATT_IF gatt_if, BOOLEAN add, BD_ADDR bd_addr, BOOLEAN is_initiator);
625 extern BOOLEAN gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV *p_dev, tGATT_IF gatt_if);
626 extern BOOLEAN gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr);
627 extern UINT8 gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr);
628 extern BOOLEAN gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF *p_gatt_if);
629 extern tGATT_BG_CONN_DEV * gatt_find_bg_dev(BD_ADDR remote_bda);
630 extern void gatt_deregister_bgdev_list(tGATT_IF gatt_if);
631 extern void gatt_reset_bgdev_list(void);
632 
633 /* server function */
634 extern UINT8 gatt_sr_find_i_rcb_by_handle(UINT16 handle);
635 extern UINT8 gatt_sr_find_i_rcb_by_app_id(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
636 extern UINT8 gatt_sr_alloc_rcb(tGATT_HDL_LIST_ELEM *p_list);
637 extern tGATT_STATUS gatt_sr_process_app_rsp (tGATT_TCB *p_tcb, tGATT_IF gatt_if, UINT32 trans_id, UINT8 op_code, tGATT_STATUS status, tGATTS_RSP *p_msg);
638 extern void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
639                                            UINT16 len, UINT8 *p_data);
640 extern void gatt_sr_send_req_callback(UINT16 conn_id,  UINT32 trans_id,
641                                       UINT8 op_code, tGATTS_DATA *p_req_data);
642 extern UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle);
643 extern BOOLEAN gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda);
644 
645 /*   */
646 
647 extern tGATT_REG *gatt_get_regcb (tGATT_IF gatt_if);
648 extern BOOLEAN gatt_is_clcb_allocated (UINT16 conn_id);
649 extern tGATT_CLCB *gatt_clcb_alloc (UINT16 conn_id);
650 extern void gatt_clcb_dealloc (tGATT_CLCB *p_clcb);
651 
652 extern void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB *p_tcb );
653 extern BOOLEAN gatt_sr_is_cback_cnt_zero(tGATT_TCB *p_tcb );
654 extern BOOLEAN gatt_sr_is_prep_cnt_zero(tGATT_TCB *p_tcb );
655 extern void gatt_sr_reset_cback_cnt(tGATT_TCB *p_tcb );
656 extern void gatt_sr_reset_prep_cnt(tGATT_TCB *p_tcb );
657 extern void gatt_sr_update_cback_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
658 extern void gatt_sr_update_prep_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
659 
660 extern BOOLEAN gatt_find_app_hold_link(tGATT_TCB *p_tcb, UINT8 start_idx, UINT8 *p_found_idx, tGATT_IF *p_gatt_if);
661 extern UINT8 gatt_num_apps_hold_link(tGATT_TCB *p_tcb);
662 extern UINT8 gatt_num_clcb_by_bd_addr(BD_ADDR bda);
663 extern tGATT_TCB * gatt_find_tcb_by_cid(UINT16 lcid);
664 extern tGATT_TCB * gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport);
665 extern tGATT_TCB * gatt_get_tcb_by_idx(UINT8 tcb_idx);
666 extern tGATT_TCB * gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport);
667 extern BOOLEAN gatt_send_ble_burst_data (BD_ADDR remote_bda,  BT_HDR *p_buf);
668 
669 /* GATT client functions */
670 extern void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb);
671 extern UINT8 gatt_send_write_msg(tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, UINT16 handle,
672                                  UINT16 len, UINT16 offset, UINT8 *p_data);
673 extern void gatt_cleanup_upon_disc(BD_ADDR bda, UINT16 reason, tBT_TRANSPORT transport);
674 extern void gatt_end_operation(tGATT_CLCB *p_clcb, tGATT_STATUS status, void *p_data);
675 
676 extern void gatt_act_discovery(tGATT_CLCB *p_clcb);
677 extern void gatt_act_read(tGATT_CLCB *p_clcb, UINT16 offset);
678 extern void gatt_act_write(tGATT_CLCB *p_clcb, UINT8 sec_act);
679 extern UINT8 gatt_act_send_browse(tGATT_TCB *p_tcb, UINT16 index, UINT8 op, UINT16 s_handle, UINT16 e_handle,
680                                   tBT_UUID uuid);
681 extern tGATT_CLCB *gatt_cmd_dequeue(tGATT_TCB *p_tcb, UINT8 *p_opcode);
682 extern BOOLEAN gatt_cmd_enq(tGATT_TCB *p_tcb, UINT16 clcb_idx, BOOLEAN to_send, UINT8 op_code, BT_HDR *p_buf);
683 extern void gatt_client_handle_server_rsp (tGATT_TCB *p_tcb, UINT8 op_code,
684                                            UINT16 len, UINT8 *p_data);
685 extern void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_EXEC_FLAG flag);
686 
687 /* gatt_auth.c */
688 extern BOOLEAN gatt_security_check_start(tGATT_CLCB *p_clcb);
689 extern void gatt_verify_signature(tGATT_TCB *p_tcb, BT_HDR *p_buf);
690 extern tGATT_SEC_ACTION gatt_determine_sec_act(tGATT_CLCB *p_clcb );
691 extern tGATT_STATUS gatt_get_link_encrypt_status(tGATT_TCB *p_tcb);
692 extern tGATT_SEC_ACTION gatt_get_sec_act(tGATT_TCB *p_tcb);
693 extern void gatt_set_sec_act(tGATT_TCB *p_tcb, tGATT_SEC_ACTION sec_act);
694 
695 /* gatt_db.c */
696 extern BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri, UINT16 s_hdl, UINT16 num_handle);
697 extern UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle, tBT_UUID service);
698 extern UINT16 gatts_add_characteristic (tGATT_SVC_DB *p_db, tGATT_PERM perm, tGATT_CHAR_PROP property, tBT_UUID *p_char_uuid);
699 extern UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm, tBT_UUID *p_dscp_uuid);
700 extern tGATT_STATUS gatts_db_read_attr_value_by_type (tGATT_TCB *p_tcb, tGATT_SVC_DB *p_db, UINT8 op_code, BT_HDR *p_rsp, UINT16 s_handle,
701                                                       UINT16 e_handle, tBT_UUID type, UINT16 *p_len, tGATT_SEC_FLAG sec_flag, UINT8 key_size,UINT32 trans_id, UINT16 *p_cur_handle);
702 extern tGATT_STATUS gatts_read_attr_value_by_handle(tGATT_TCB *p_tcb,tGATT_SVC_DB *p_db, UINT8 op_code, UINT16 handle, UINT16 offset,
703                                                     UINT8 *p_value, UINT16 *p_len, UINT16 mtu,tGATT_SEC_FLAG sec_flag,UINT8 key_size,UINT32 trans_id);
704 extern tGATT_STATUS gatts_write_attr_perm_check (tGATT_SVC_DB *p_db, UINT8 op_code,UINT16 handle, UINT16 offset, UINT8 *p_data,
705                                                  UINT16 len, tGATT_SEC_FLAG sec_flag, UINT8 key_size);
706 extern tGATT_STATUS gatts_read_attr_perm_check(tGATT_SVC_DB *p_db, BOOLEAN is_long, UINT16 handle, tGATT_SEC_FLAG sec_flag,UINT8 key_size);
707 extern void gatts_update_srv_list_elem(UINT8 i_sreg, UINT16 handle, BOOLEAN is_primary);
708 extern tBT_UUID * gatts_get_service_uuid (tGATT_SVC_DB *p_db);
709 
710 extern void gatt_reset_bgdev_list(void);
711 #endif
712 
713 
714