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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 #include "osi/include/fixed_queue.h"
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_TIMEOUT_MS      (30 * 1000)
79 #define GATT_WAIT_FOR_DISC_RSP_TIMEOUT_MS (5 * 1000)
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     fixed_queue_t   *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     fixed_queue_t   *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 
300 typedef UINT8 tGATT_CH_STATE;
301 
302 #define GATT_GATT_START_HANDLE  1
303 #define GATT_GAP_START_HANDLE   20
304 #define GATT_APP_START_HANDLE   40
305 
306 typedef struct hdl_cfg
307 {
308     UINT16               gatt_start_hdl;
309     UINT16               gap_start_hdl;
310     UINT16               app_start_hdl;
311 }tGATT_HDL_CFG;
312 
313 typedef struct hdl_list_elem
314 {
315     struct              hdl_list_elem *p_next;
316     struct              hdl_list_elem *p_prev;
317     tGATTS_HNDL_RANGE   asgn_range; /* assigned handle range */
318     tGATT_SVC_DB        svc_db;
319     BOOLEAN             in_use;
320 }tGATT_HDL_LIST_ELEM;
321 
322 typedef struct
323 {
324     tGATT_HDL_LIST_ELEM  *p_first;
325     tGATT_HDL_LIST_ELEM  *p_last;
326     UINT16               count;
327 }tGATT_HDL_LIST_INFO;
328 
329 
330 typedef struct srv_list_elem
331 {
332     struct              srv_list_elem *p_next;
333     struct              srv_list_elem *p_prev;
334     UINT16              s_hdl;
335     UINT8               i_sreg;
336     BOOLEAN             in_use;
337     BOOLEAN             is_primary;
338 }tGATT_SRV_LIST_ELEM;
339 
340 
341 typedef struct
342 {
343     tGATT_SRV_LIST_ELEM  *p_last_primary;
344     tGATT_SRV_LIST_ELEM  *p_first;
345     tGATT_SRV_LIST_ELEM  *p_last;
346     UINT16               count;
347 }tGATT_SRV_LIST_INFO;
348 
349 typedef struct
350 {
351     fixed_queue_t   *pending_enc_clcb;   /* pending encryption channel q */
352     tGATT_SEC_ACTION sec_act;
353     BD_ADDR         peer_bda;
354     tBT_TRANSPORT   transport;
355     UINT32          trans_id;
356 
357     UINT16          att_lcid;           /* L2CAP channel ID for ATT */
358     UINT16          payload_size;
359 
360     tGATT_CH_STATE  ch_state;
361     UINT8           ch_flags;
362 
363     tGATT_IF        app_hold_link[GATT_MAX_APPS];
364 
365     /* server needs */
366     /* server response data */
367     tGATT_SR_CMD    sr_cmd;
368     UINT16          indicate_handle;
369     fixed_queue_t   *pending_ind_q;
370 
371     alarm_t         *conf_timer;         /* peer confirm to indication timer */
372 
373     UINT8           prep_cnt[GATT_MAX_APPS];
374     UINT8           ind_count;
375 
376     tGATT_CMD_Q     cl_cmd_q[GATT_CL_MAX_LCB];
377     alarm_t         *ind_ack_timer;   /* local app confirm to indication timer */
378     UINT8           pending_cl_req;
379     UINT8           next_slot_inq;    /* index of next available slot in queue */
380 
381     BOOLEAN         in_use;
382     UINT8           tcb_idx;
383 } tGATT_TCB;
384 
385 
386 /* logic channel */
387 typedef struct
388 {
389     UINT16                  next_disc_start_hdl;   /* starting handle for the next inc srvv discovery */
390     tGATT_DISC_RES          result;
391     BOOLEAN                 wait_for_read_rsp;
392 } tGATT_READ_INC_UUID128;
393 typedef struct
394 {
395     tGATT_TCB               *p_tcb;         /* associated TCB of this CLCB */
396     tGATT_REG               *p_reg;        /* owner of this CLCB */
397     UINT8                   sccb_idx;
398     UINT8                   *p_attr_buf;    /* attribute buffer for read multiple, prepare write */
399     tBT_UUID                uuid;
400     UINT16                  conn_id;        /* connection handle */
401     UINT16                  clcb_idx;
402     UINT16                  s_handle;       /* starting handle of the active request */
403     UINT16                  e_handle;       /* ending handle of the active request */
404     UINT16                  counter;        /* used as offset, attribute length, num of prepare write */
405     UINT16                  start_offset;
406     tGATT_AUTH_REQ          auth_req;       /* authentication requirement */
407     UINT8                   operation;      /* one logic channel can have one operation active */
408     UINT8                   op_subtype;     /* operation subtype */
409     UINT8                   status;         /* operation status */
410     BOOLEAN                 first_read_blob_after_read;
411     tGATT_READ_INC_UUID128  read_uuid128;
412     BOOLEAN                 in_use;
413     alarm_t                 *gatt_rsp_timer_ent;  /* peer response timer */
414     UINT8                   retry_count;
415 
416 } tGATT_CLCB;
417 
418 typedef struct
419 {
420     tGATT_CLCB  *p_clcb;
421 }tGATT_PENDING_ENC_CLCB;
422 
423 typedef struct
424 {
425     UINT16                  clcb_idx;
426     BOOLEAN                 in_use;
427 } tGATT_SCCB;
428 
429 typedef struct
430 {
431     UINT16      handle;
432     UINT16      uuid;
433     UINT32      service_change;
434 }tGATT_SVC_CHG;
435 
436 typedef struct
437 {
438     tGATT_IF        gatt_if[GATT_MAX_APPS];
439     tGATT_IF        listen_gif[GATT_MAX_APPS];
440     BD_ADDR         remote_bda;
441     BOOLEAN         in_use;
442 }tGATT_BG_CONN_DEV;
443 
444 #define GATT_SVC_CHANGED_CONNECTING        1   /* wait for connection */
445 #define GATT_SVC_CHANGED_SERVICE           2   /* GATT service discovery */
446 #define GATT_SVC_CHANGED_CHARACTERISTIC    3   /* service change char discovery */
447 #define GATT_SVC_CHANGED_DESCRIPTOR        4   /* service change CCC discoery */
448 #define GATT_SVC_CHANGED_CONFIGURE_CCCD    5   /* config CCC */
449 
450 typedef struct
451 {
452     UINT16  conn_id;
453     BOOLEAN in_use;
454     BOOLEAN connected;
455     BD_ADDR bda;
456     tBT_TRANSPORT   transport;
457 
458     /* GATT service change CCC related variables */
459     UINT8       ccc_stage;
460     UINT8       ccc_result;
461     UINT16      s_handle;
462     UINT16      e_handle;
463 }tGATT_PROFILE_CLCB;
464 
465 typedef struct
466 {
467     tGATT_TCB           tcb[GATT_MAX_PHY_CHANNEL];
468     fixed_queue_t       *sign_op_queue;
469 
470     tGATT_SR_REG        sr_reg[GATT_MAX_SR_PROFILES];
471     UINT16              next_handle;    /* next available handle */
472     tGATT_SVC_CHG       gattp_attr;     /* GATT profile attribute service change */
473     tGATT_IF            gatt_if;
474     tGATT_HDL_LIST_INFO hdl_list_info;
475     tGATT_HDL_LIST_ELEM hdl_list[GATT_MAX_SR_PROFILES];
476     tGATT_SRV_LIST_INFO srv_list_info;
477     tGATT_SRV_LIST_ELEM srv_list[GATT_MAX_SR_PROFILES];
478 
479     fixed_queue_t       *srv_chg_clt_q; /* service change clients queue */
480     fixed_queue_t       *pending_new_srv_start_q; /* pending new service start queue */
481     tGATT_REG           cl_rcb[GATT_MAX_APPS];
482     tGATT_CLCB          clcb[GATT_CL_MAX_LCB];  /* connection link control block*/
483     tGATT_SCCB          sccb[GATT_MAX_SCCB];    /* sign complete callback function GATT_MAX_SCCB <= GATT_CL_MAX_LCB */
484     UINT8               trace_level;
485     UINT16              def_mtu_size;
486 
487 #if GATT_CONFORMANCE_TESTING == TRUE
488     BOOLEAN             enable_err_rsp;
489     UINT8               req_op_code;
490     UINT8               err_status;
491     UINT16              handle;
492 #endif
493 
494     tGATT_PROFILE_CLCB  profile_clcb[GATT_MAX_APPS];
495     UINT16              handle_of_h_r;          /* Handle of the handles reused characteristic value */
496 
497     tGATT_APPL_INFO       cb_info;
498 
499 
500 
501     tGATT_HDL_CFG           hdl_cfg;
502     tGATT_BG_CONN_DEV       bgconn_dev[GATT_MAX_BG_CONN_DEV];
503 
504 } tGATT_CB;
505 
506 
507 #define GATT_SIZE_OF_SRV_CHG_HNDL_RANGE 4
508 
509 #ifdef __cplusplus
510 extern "C" {
511 #endif
512 
513 /* Global GATT data */
514 #if GATT_DYNAMIC_MEMORY == FALSE
515 extern tGATT_CB  gatt_cb;
516 #else
517 extern tGATT_CB *gatt_cb_ptr;
518 #define gatt_cb (*gatt_cb_ptr)
519 #endif
520 
521 #if GATT_CONFORMANCE_TESTING == TRUE
522 extern void gatt_set_err_rsp(BOOLEAN enable, UINT8 req_op_code, UINT8 err_status);
523 #endif
524 
525 #ifdef __cplusplus
526 }
527 #endif
528 
529 /* internal functions */
530 extern void gatt_init (void);
531 extern void gatt_free(void);
532 
533 /* from gatt_main.c */
534 extern BOOLEAN gatt_disconnect (tGATT_TCB *p_tcb);
535 extern BOOLEAN gatt_act_connect (tGATT_REG *p_reg, BD_ADDR bd_addr, tBT_TRANSPORT transport);
536 extern BOOLEAN gatt_connect (BD_ADDR rem_bda,  tGATT_TCB *p_tcb, tBT_TRANSPORT transport);
537 extern void gatt_data_process (tGATT_TCB *p_tcb, BT_HDR *p_buf);
538 extern void gatt_update_app_use_link_flag ( tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add, BOOLEAN check_acl_link);
539 
540 extern void gatt_profile_db_init(void);
541 extern void gatt_set_ch_state(tGATT_TCB *p_tcb, tGATT_CH_STATE ch_state);
542 extern tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB *p_tcb);
543 extern void gatt_init_srv_chg(void);
544 extern void gatt_proc_srv_chg (void);
545 extern void gatt_send_srv_chg_ind (BD_ADDR peer_bda);
546 extern void gatt_chk_srv_chg(tGATTS_SRV_CHG *p_srv_chg_clt);
547 extern void gatt_add_a_bonded_dev_for_srv_chg (BD_ADDR bda);
548 
549 /* from gatt_attr.c */
550 extern UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR bda);
551 
552 
553 /* Functions provided by att_protocol.c */
554 extern tGATT_STATUS attp_send_cl_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, tGATT_CL_MSG *p_msg);
555 extern BT_HDR *attp_build_sr_msg(tGATT_TCB *p_tcb, UINT8 op_code, tGATT_SR_MSG *p_msg);
556 extern tGATT_STATUS attp_send_sr_msg (tGATT_TCB *p_tcb, BT_HDR *p_msg);
557 extern tGATT_STATUS attp_send_msg_to_l2cap(tGATT_TCB *p_tcb, BT_HDR *p_toL2CAP);
558 
559 /* utility functions */
560 extern UINT8 * gatt_dbg_op_name(UINT8 op_code);
561 extern UINT32 gatt_add_sdp_record (tBT_UUID *p_uuid, UINT16 start_hdl, UINT16 end_hdl);
562 extern BOOLEAN gatt_parse_uuid_from_cmd(tBT_UUID *p_uuid, UINT16 len, UINT8 **p_data);
563 extern UINT8 gatt_build_uuid_to_stream(UINT8 **p_dst, tBT_UUID uuid);
564 extern BOOLEAN gatt_uuid_compare(tBT_UUID src, tBT_UUID tar);
565 extern void gatt_convert_uuid32_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT32 uuid_32);
566 extern void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport, UINT8 *p_sec_flag, UINT8 *p_key_size);
567 extern void gatt_start_rsp_timer(UINT16 clcb_idx);
568 extern void gatt_start_conf_timer(tGATT_TCB    *p_tcb);
569 extern void gatt_rsp_timeout(void *data);
570 extern void gatt_indication_confirmation_timeout(void *data);
571 extern void gatt_ind_ack_timeout(void *data);
572 extern void gatt_start_ind_ack_timer(tGATT_TCB *p_tcb);
573 extern tGATT_STATUS gatt_send_error_rsp(tGATT_TCB *p_tcb, UINT8 err_code, UINT8 op_code, UINT16 handle, BOOLEAN deq);
574 extern void gatt_dbg_display_uuid(tBT_UUID bt_uuid);
575 extern tGATT_PENDING_ENC_CLCB* gatt_add_pending_enc_channel_clcb(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb );
576 
577 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);
578 
579 extern BOOLEAN gatt_is_srv_chg_ind_pending (tGATT_TCB *p_tcb);
580 extern tGATTS_SRV_CHG *gatt_is_bda_in_the_srv_chg_clt_list (BD_ADDR bda);
581 
582 extern BOOLEAN gatt_find_the_connected_bda(UINT8 start_idx, BD_ADDR bda, UINT8 *p_found_idx, tBT_TRANSPORT *p_transport);
583 extern void gatt_set_srv_chg(void);
584 extern void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr);
585 extern tGATT_VALUE *gatt_add_pending_ind(tGATT_TCB  *p_tcb, tGATT_VALUE *p_ind);
586 extern tGATTS_PENDING_NEW_SRV_START *gatt_add_pending_new_srv_start( tGATTS_HNDL_RANGE *p_new_srv_start);
587 extern void gatt_free_srvc_db_buffer_app_id(tBT_UUID *p_app_id);
588 extern BOOLEAN gatt_update_listen_mode(void);
589 extern BOOLEAN gatt_cl_send_next_cmd_inq(tGATT_TCB *p_tcb);
590 
591 /* reserved handle list */
592 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);
593 extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_handle(UINT16 handle);
594 extern tGATT_HDL_LIST_ELEM *gatt_alloc_hdl_buffer(void);
595 extern void gatt_free_hdl_buffer(tGATT_HDL_LIST_ELEM *p);
596 extern BOOLEAN gatt_is_last_attribute(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_start, tBT_UUID value);
597 extern void gatt_update_last_pri_srv_info(tGATT_SRV_LIST_INFO *p_list);
598 extern BOOLEAN gatt_add_a_srv_to_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_new);
599 extern BOOLEAN gatt_remove_a_srv_from_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_remove);
600 extern BOOLEAN gatt_add_an_item_to_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_new);
601 extern BOOLEAN gatt_remove_an_item_from_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_remove);
602 extern tGATTS_SRV_CHG *gatt_add_srv_chg_clt(tGATTS_SRV_CHG *p_srv_chg);
603 
604 /* for background connection */
605 extern BOOLEAN gatt_update_auto_connect_dev (tGATT_IF gatt_if, BOOLEAN add, BD_ADDR bd_addr, BOOLEAN is_initiator);
606 extern BOOLEAN gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV *p_dev, tGATT_IF gatt_if);
607 extern BOOLEAN gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr);
608 extern UINT8 gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr);
609 extern BOOLEAN gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF *p_gatt_if);
610 extern tGATT_BG_CONN_DEV * gatt_find_bg_dev(BD_ADDR remote_bda);
611 extern void gatt_deregister_bgdev_list(tGATT_IF gatt_if);
612 extern void gatt_reset_bgdev_list(void);
613 
614 /* server function */
615 extern UINT8 gatt_sr_find_i_rcb_by_handle(UINT16 handle);
616 extern UINT8 gatt_sr_find_i_rcb_by_app_id(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
617 extern UINT8 gatt_sr_alloc_rcb(tGATT_HDL_LIST_ELEM *p_list);
618 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);
619 extern void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
620                                            UINT16 len, UINT8 *p_data);
621 extern void gatt_sr_send_req_callback(UINT16 conn_id,  UINT32 trans_id,
622                                       UINT8 op_code, tGATTS_DATA *p_req_data);
623 extern UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle);
624 extern BOOLEAN gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda);
625 
626 /*   */
627 
628 extern tGATT_REG *gatt_get_regcb (tGATT_IF gatt_if);
629 extern BOOLEAN gatt_is_clcb_allocated (UINT16 conn_id);
630 extern tGATT_CLCB *gatt_clcb_alloc (UINT16 conn_id);
631 extern void gatt_clcb_dealloc (tGATT_CLCB *p_clcb);
632 
633 extern void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB *p_tcb );
634 extern BOOLEAN gatt_sr_is_cback_cnt_zero(tGATT_TCB *p_tcb );
635 extern BOOLEAN gatt_sr_is_prep_cnt_zero(tGATT_TCB *p_tcb );
636 extern void gatt_sr_reset_cback_cnt(tGATT_TCB *p_tcb );
637 extern void gatt_sr_reset_prep_cnt(tGATT_TCB *p_tcb );
638 extern void gatt_sr_update_cback_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
639 extern void gatt_sr_update_prep_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
640 
641 extern BOOLEAN gatt_find_app_hold_link(tGATT_TCB *p_tcb, UINT8 start_idx, UINT8 *p_found_idx, tGATT_IF *p_gatt_if);
642 extern UINT8 gatt_num_apps_hold_link(tGATT_TCB *p_tcb);
643 extern UINT8 gatt_num_clcb_by_bd_addr(BD_ADDR bda);
644 extern tGATT_TCB * gatt_find_tcb_by_cid(UINT16 lcid);
645 extern tGATT_TCB * gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport);
646 extern tGATT_TCB * gatt_get_tcb_by_idx(UINT8 tcb_idx);
647 extern tGATT_TCB * gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport);
648 extern BOOLEAN gatt_send_ble_burst_data (BD_ADDR remote_bda,  BT_HDR *p_buf);
649 
650 /* GATT client functions */
651 extern void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb);
652 extern UINT8 gatt_send_write_msg(tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, UINT16 handle,
653                                  UINT16 len, UINT16 offset, UINT8 *p_data);
654 extern void gatt_cleanup_upon_disc(BD_ADDR bda, UINT16 reason, tBT_TRANSPORT transport);
655 extern void gatt_end_operation(tGATT_CLCB *p_clcb, tGATT_STATUS status, void *p_data);
656 
657 extern void gatt_act_discovery(tGATT_CLCB *p_clcb);
658 extern void gatt_act_read(tGATT_CLCB *p_clcb, UINT16 offset);
659 extern void gatt_act_write(tGATT_CLCB *p_clcb, UINT8 sec_act);
660 extern UINT8 gatt_act_send_browse(tGATT_TCB *p_tcb, UINT16 index, UINT8 op, UINT16 s_handle, UINT16 e_handle,
661                                   tBT_UUID uuid);
662 extern tGATT_CLCB *gatt_cmd_dequeue(tGATT_TCB *p_tcb, UINT8 *p_opcode);
663 extern BOOLEAN gatt_cmd_enq(tGATT_TCB *p_tcb, UINT16 clcb_idx, BOOLEAN to_send, UINT8 op_code, BT_HDR *p_buf);
664 extern void gatt_client_handle_server_rsp (tGATT_TCB *p_tcb, UINT8 op_code,
665                                            UINT16 len, UINT8 *p_data);
666 extern void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_EXEC_FLAG flag);
667 
668 /* gatt_auth.c */
669 extern BOOLEAN gatt_security_check_start(tGATT_CLCB *p_clcb);
670 extern void gatt_verify_signature(tGATT_TCB *p_tcb, BT_HDR *p_buf);
671 extern tGATT_SEC_ACTION gatt_determine_sec_act(tGATT_CLCB *p_clcb );
672 extern tGATT_STATUS gatt_get_link_encrypt_status(tGATT_TCB *p_tcb);
673 extern tGATT_SEC_ACTION gatt_get_sec_act(tGATT_TCB *p_tcb);
674 extern void gatt_set_sec_act(tGATT_TCB *p_tcb, tGATT_SEC_ACTION sec_act);
675 
676 /* gatt_db.c */
677 extern BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri, UINT16 s_hdl, UINT16 num_handle);
678 extern UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle, tBT_UUID service);
679 extern UINT16 gatts_add_characteristic (tGATT_SVC_DB *p_db, tGATT_PERM perm, tGATT_CHAR_PROP property, tBT_UUID *p_char_uuid);
680 extern UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm, tBT_UUID *p_dscp_uuid);
681 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,
682                                                       UINT16 e_handle, tBT_UUID type, UINT16 *p_len, tGATT_SEC_FLAG sec_flag, UINT8 key_size,UINT32 trans_id, UINT16 *p_cur_handle);
683 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,
684                                                     UINT8 *p_value, UINT16 *p_len, UINT16 mtu,tGATT_SEC_FLAG sec_flag,UINT8 key_size,UINT32 trans_id);
685 extern tGATT_STATUS gatts_write_attr_perm_check (tGATT_SVC_DB *p_db, UINT8 op_code,UINT16 handle, UINT16 offset, UINT8 *p_data,
686                                                  UINT16 len, tGATT_SEC_FLAG sec_flag, UINT8 key_size);
687 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);
688 extern void gatts_update_srv_list_elem(UINT8 i_sreg, UINT16 handle, BOOLEAN is_primary);
689 extern tBT_UUID * gatts_get_service_uuid (tGATT_SVC_DB *p_db);
690 
691 extern void gatt_reset_bgdev_list(void);
692 #endif
693