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esp-idf/components/bt/host/bluedroid/stack/gatt/include/gatt_int.h
XieWenxiang 366b036ba5 component/bt: support BLE Authorization
2020-12-02 09:07:24 +08:00

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/******************************************************************************
*
* Copyright (C) 1999-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#ifndef GATT_INT_H
#define GATT_INT_H
#include "common/bt_target.h"
#include "common/bt_trace.h"
#include "stack/gatt_api.h"
#include "stack/btm_ble_api.h"
#include "stack/btu.h"
#include "osi/fixed_queue.h"
#include <string.h>
#define GATT_CREATE_CONN_ID(tcb_idx, gatt_if) ((UINT16) ((((UINT8)(tcb_idx) ) << 8) | ((UINT8) (gatt_if))))
#define GATT_GET_TCB_IDX(conn_id) ((UINT8) (((UINT16) (conn_id)) >> 8))
#define GATT_GET_GATT_IF(conn_id) ((tGATT_IF)((UINT8) (conn_id)))
#define GATT_GET_SR_REG_PTR(index) (&gatt_cb.sr_reg[(UINT8) (index)]);
#define GATT_TRANS_ID_MAX 0x0fffffff /* 4 MSB is reserved */
#define GATT_RSP_BY_APP 0x00
#define GATT_RSP_BY_STACK 0x01
#define GATT_RSP_DEFAULT GATT_RSP_BY_APP //need to rsp by the app.
/* security action for GATT write and read request */
#define GATT_SEC_NONE 0
#define GATT_SEC_OK 1
#define GATT_SEC_SIGN_DATA 2 /* compute the signature for the write cmd */
#define GATT_SEC_ENCRYPT 3 /* encrypt the link with current key */
#define GATT_SEC_ENCRYPT_NO_MITM 4 /* unauthenticated encryption or better */
#define GATT_SEC_ENCRYPT_MITM 5 /* authenticated encryption */
#define GATT_SEC_ENC_PENDING 6 /* wait for link encryption pending */
typedef UINT8 tGATT_SEC_ACTION;
#define GATT_ATTR_OP_SPT_MTU (0x00000001 << 0)
#define GATT_ATTR_OP_SPT_FIND_INFO (0x00000001 << 1)
#define GATT_ATTR_OP_SPT_FIND_BY_TYPE (0x00000001 << 2)
#define GATT_ATTR_OP_SPT_READ_BY_TYPE (0x00000001 << 3)
#define GATT_ATTR_OP_SPT_READ (0x00000001 << 4)
#define GATT_ATTR_OP_SPT_MULT_READ (0x00000001 << 5)
#define GATT_ATTR_OP_SPT_READ_BLOB (0x00000001 << 6)
#define GATT_ATTR_OP_SPT_READ_BY_GRP_TYPE (0x00000001 << 7)
#define GATT_ATTR_OP_SPT_WRITE (0x00000001 << 8)
#define GATT_ATTR_OP_SPT_WRITE_CMD (0x00000001 << 9)
#define GATT_ATTR_OP_SPT_PREP_WRITE (0x00000001 << 10)
#define GATT_ATTR_OP_SPT_EXE_WRITE (0x00000001 << 11)
#define GATT_ATTR_OP_SPT_HDL_VALUE_CONF (0x00000001 << 12)
#define GATT_ATTR_OP_SP_SIGN_WRITE (0x00000001 << 13)
#define GATT_INDEX_INVALID 0xff
#define GATT_PENDING_REQ_NONE 0
#define GATT_WRITE_CMD_MASK 0xc0 /*0x1100-0000*/
#define GATT_AUTH_SIGN_MASK 0x80 /*0x1000-0000*/
#define GATT_AUTH_SIGN_LEN 12
#define GATT_HDR_SIZE 3 /* 1B opcode + 2B handle */
/* wait for ATT cmd response timeout value */
#define GATT_WAIT_FOR_RSP_TOUT 30
#define GATT_WAIT_FOR_DISC_RSP_TOUT 5
#define GATT_REQ_RETRY_LIMIT 2
#define GATT_WAIT_FOR_IND_ACK_TOUT 5
/* characteristic descriptor type */
#define GATT_DESCR_EXT_DSCPTOR 1 /* Characteristic Extended Properties */
#define GATT_DESCR_USER_DSCPTOR 2 /* Characteristic User Description */
#define GATT_DESCR_CLT_CONFIG 3 /* Client Characteristic Configuration */
#define GATT_DESCR_SVR_CONFIG 4 /* Server Characteristic Configuration */
#define GATT_DESCR_PRES_FORMAT 5 /* Characteristic Presentation Format */
#define GATT_DESCR_AGGR_FORMAT 6 /* Characteristic Aggregate Format */
#define GATT_DESCR_VALID_RANGE 7 /* Characteristic Valid Range */
#define GATT_DESCR_UNKNOWN 0xff
#define GATT_SEC_FLAG_LKEY_UNAUTHED BTM_SEC_FLAG_LKEY_KNOWN
#define GATT_SEC_FLAG_LKEY_AUTHED BTM_SEC_FLAG_LKEY_AUTHED
#define GATT_SEC_FLAG_ENCRYPTED BTM_SEC_FLAG_ENCRYPTED
#define GATT_SEC_FLAG_AUTHORIZATION BTM_SEC_FLAG_AUTHORIZED
typedef UINT8 tGATT_SEC_FLAG;
/* Find Information Response Type
*/
#define GATT_INFO_TYPE_PAIR_16 0x01
#define GATT_INFO_TYPE_PAIR_128 0x02
#define GATTS_SEND_SERVICE_CHANGE_AUTO 0
#define GATTS_SEND_SERVICE_CHANGE_MANUAL 1
/* GATT client FIND_TYPE_VALUE_Request data */
typedef struct {
tBT_UUID uuid; /* type of attribute to be found */
UINT16 s_handle; /* starting handle */
UINT16 e_handle; /* ending handle */
UINT16 value_len; /* length of the attribute value */
UINT8 value[GATT_MAX_MTU_SIZE]; /* pointer to the attribute value to be found */
} tGATT_FIND_TYPE_VALUE;
/* client request message to ATT protocol
*/
typedef union {
tGATT_READ_BY_TYPE browse; /* read by type request */
tGATT_FIND_TYPE_VALUE find_type_value;/* find by type value */
tGATT_READ_MULTI read_multi; /* read multiple request */
tGATT_READ_PARTIAL read_blob; /* read blob */
tGATT_VALUE attr_value; /* write request */
/* prepare write */
/* write blob */
UINT16 handle; /* read, handle value confirmation */
UINT16 mtu;
tGATT_EXEC_FLAG exec_write; /* execute write */
} tGATT_CL_MSG;
/* error response strucutre */
typedef struct {
UINT16 handle;
UINT8 cmd_code;
UINT8 reason;
} tGATT_ERROR;
/* Execute write response structure */
typedef struct {
UINT8 op_code;
}__attribute__((packed)) tGATT_EXEC_WRITE_RSP;
/* Write request response structure */
typedef struct {
UINT8 op_code;
}__attribute__((packed)) tGATT_WRITE_REQ_RSP;
/* server response message to ATT protocol
*/
typedef union {
/* data type member event */
tGATT_VALUE attr_value; /* READ, HANDLE_VALUE_IND, PREPARE_WRITE */
/* READ_BLOB, READ_BY_TYPE */
tGATT_ERROR error; /* ERROR_RSP */
UINT16 handle; /* WRITE, WRITE_BLOB */
UINT16 mtu; /* exchange MTU request */
} tGATT_SR_MSG;
/* Characteristic declaration attribute value
*/
typedef struct {
tGATT_CHAR_PROP property;
UINT16 char_val_handle;
} tGATT_CHAR_DECL;
/* attribute value maintained in the server database
*/
typedef union {
tBT_UUID uuid; /* service declaration */
tGATT_CHAR_DECL char_decl; /* characteristic declaration */
tGATT_INCL_SRVC incl_handle; /* included service */
tGATT_ATTR_VAL attr_val;
} tGATT_ATTR_VALUE;
/* Attribute UUID type
*/
#define GATT_ATTR_UUID_TYPE_16 0
#define GATT_ATTR_UUID_TYPE_128 1
#define GATT_ATTR_UUID_TYPE_32 2
typedef UINT8 tGATT_ATTR_UUID_TYPE;
/* 16 bits UUID Attribute in server database
*/
typedef struct {
void *p_next; /* pointer to the next attribute, either tGATT_ATTR16 or tGATT_ATTR128 */
tGATT_ATTR_VALUE *p_value;
tGATT_ATTR_UUID_TYPE uuid_type;
tGATT_PERM permission;
tGATTS_ATTR_CONTROL control;
tGATT_ATTR_MASK mask;
UINT16 handle;
UINT16 uuid;
} tGATT_ATTR16;
/* 32 bits UUID Attribute in server database
*/
typedef struct {
void *p_next; /* pointer to the next attribute, either tGATT_ATTR16, tGATT_ATTR32 or tGATT_ATTR128 */
tGATT_ATTR_VALUE *p_value;
tGATT_ATTR_UUID_TYPE uuid_type;
tGATT_PERM permission;
tGATTS_ATTR_CONTROL control;
tGATT_ATTR_MASK mask;
UINT16 handle;
UINT32 uuid;
} tGATT_ATTR32;
/* 128 bits UUID Attribute in server database
*/
typedef struct {
void *p_next; /* pointer to the next attribute, either tGATT_ATTR16 or tGATT_ATTR128 */
tGATT_ATTR_VALUE *p_value;
tGATT_ATTR_UUID_TYPE uuid_type;
tGATT_PERM permission;
tGATTS_ATTR_CONTROL control;
tGATT_ATTR_MASK mask;
UINT16 handle;
UINT8 uuid[LEN_UUID_128];
} tGATT_ATTR128;
/* Service Database definition
*/
typedef struct {
void *p_attr_list; /* pointer to the first attribute, either tGATT_ATTR16 or tGATT_ATTR128 */
UINT8 *p_free_mem; /* Pointer to free memory */
fixed_queue_t *svc_buffer; /* buffer queue used for service database */
UINT32 mem_free; /* Memory still available */
UINT16 end_handle; /* Last handle number */
UINT16 next_handle; /* Next usable handle value */
} tGATT_SVC_DB;
/* Data Structure used for GATT server */
/* A GATT registration record consists of a handle, and 1 or more attributes */
/* A service registration information record consists of beginning and ending */
/* attribute handle, service UUID and a set of GATT server callback. */
typedef struct {
tGATT_SVC_DB *p_db; /* pointer to the service database */
tBT_UUID app_uuid; /* applicatino UUID */
UINT32 sdp_handle; /* primamry service SDP handle */
UINT16 service_instance; /* service instance number */
UINT16 type; /* service type UUID, primary or secondary */
UINT16 s_hdl; /* service starting handle */
UINT16 e_hdl; /* service ending handle */
tGATT_IF gatt_if; /* this service is belong to which application */
BOOLEAN in_use;
} tGATT_SR_REG;
#define GATT_LISTEN_TO_ALL 0xff
#define GATT_LISTEN_TO_NONE 0
/* Data Structure used for GATT server */
/* An GATT registration record consists of a handle, and 1 or more attributes */
/* A service registration information record consists of beginning and ending */
/* attribute handle, service UUID and a set of GATT server callback. */
typedef struct {
tBT_UUID app_uuid128;
tGATT_CBACK app_cb;
tGATT_IF gatt_if; /* one based */
BOOLEAN in_use;
UINT8 listening; /* if adv for all has been enabled */
} tGATT_REG;
/* command queue for each connection */
typedef struct {
BT_HDR *p_cmd;
UINT16 clcb_idx;
UINT8 op_code;
BOOLEAN to_send;
} tGATT_CMD_Q;
#if GATT_MAX_SR_PROFILES <= 8
typedef UINT8 tGATT_APP_MASK;
#elif GATT_MAX_SR_PROFILES <= 16
typedef UINT16 tGATT_APP_MASK;
#elif GATT_MAX_SR_PROFILES <= 32
typedef UINT32 tGATT_APP_MASK;
#endif
/* command details for each connection */
typedef struct {
BT_HDR *p_rsp_msg;
UINT32 trans_id;
tGATT_READ_MULTI multi_req;
fixed_queue_t *multi_rsp_q;
UINT16 handle;
UINT8 op_code;
UINT8 status;
UINT8 cback_cnt[GATT_MAX_APPS];
} tGATT_SR_CMD;
#define GATT_CH_CLOSE 0
#define GATT_CH_CLOSING 1
#define GATT_CH_CONN 2
#define GATT_CH_CFG 3
#define GATT_CH_OPEN 4
typedef UINT8 tGATT_CH_STATE;
#define GATT_GATT_START_HANDLE 1
#define GATT_GAP_START_HANDLE 20
#define GATT_APP_START_HANDLE 40
typedef struct hdl_cfg {
UINT16 gatt_start_hdl;
UINT16 gap_start_hdl;
UINT16 app_start_hdl;
} tGATT_HDL_CFG;
typedef struct hdl_list_elem {
struct hdl_list_elem *p_next;
struct hdl_list_elem *p_prev;
tGATTS_HNDL_RANGE asgn_range; /* assigned handle range */
tGATT_SVC_DB svc_db;
BOOLEAN in_use;
} tGATT_HDL_LIST_ELEM;
typedef struct {
tGATT_HDL_LIST_ELEM *p_first;
tGATT_HDL_LIST_ELEM *p_last;
UINT16 count;
} tGATT_HDL_LIST_INFO;
typedef struct srv_list_elem {
struct srv_list_elem *p_next;
struct srv_list_elem *p_prev;
UINT16 s_hdl;
UINT8 i_sreg;
BOOLEAN in_use;
BOOLEAN is_primary;
} tGATT_SRV_LIST_ELEM;
typedef struct {
tGATT_SRV_LIST_ELEM *p_last_primary;
tGATT_SRV_LIST_ELEM *p_first;
tGATT_SRV_LIST_ELEM *p_last;
UINT16 count;
} tGATT_SRV_LIST_INFO;
/* prepare write queue data */
typedef struct{
//len: length of value
tGATT_ATTR16 *p_attr;
UINT16 len;
UINT8 op_code;
UINT16 handle;
UINT16 offset;
UINT8 value[2];
}__attribute__((packed)) tGATT_PREPARE_WRITE_QUEUE_DATA;
/* structure to store prepare write packts information */
typedef struct{
//only store prepare write packets which need
//to be responded by stack (not by application)
fixed_queue_t *queue;
//store the total number of prepare write packets
//including that should be responded by stack or by application
UINT16 total_num;
//store application error code for prepare write,
//invalid offset && invalid length
UINT8 error_code_app;
}tGATT_PREPARE_WRITE_RECORD;
typedef struct {
fixed_queue_t *pending_enc_clcb; /* pending encryption channel q */
tGATT_SEC_ACTION sec_act;
BD_ADDR peer_bda;
tBT_TRANSPORT transport;
UINT32 trans_id;
UINT16 att_lcid; /* L2CAP channel ID for ATT */
UINT16 payload_size;
tGATT_CH_STATE ch_state;
UINT8 ch_flags;
tGATT_IF app_hold_link[GATT_MAX_APPS];
/* server needs */
/* server response data */
#if (GATTS_INCLUDED == TRUE)
tGATT_SR_CMD sr_cmd;
#endif ///GATTS_INCLUDED == TRUE
UINT16 indicate_handle;
fixed_queue_t *pending_ind_q;
TIMER_LIST_ENT conf_timer_ent; /* peer confirm to indication timer */
UINT8 prep_cnt[GATT_MAX_APPS];
UINT8 ind_count;
tGATT_CMD_Q cl_cmd_q[GATT_CL_MAX_LCB];
TIMER_LIST_ENT ind_ack_timer_ent; /* local app confirm to indication timer */
UINT8 pending_cl_req;
UINT8 next_slot_inq; /* index of next available slot in queue */
BOOLEAN in_use;
UINT8 tcb_idx;
tGATT_PREPARE_WRITE_RECORD prepare_write_record; /* prepare write packets record */
} tGATT_TCB;
/* logic channel */
typedef struct {
UINT16 next_disc_start_hdl; /* starting handle for the next inc srvv discovery */
tGATT_DISC_RES result;
BOOLEAN wait_for_read_rsp;
} tGATT_READ_INC_UUID128;
typedef struct {
tGATT_TCB *p_tcb; /* associated TCB of this CLCB */
tGATT_REG *p_reg; /* owner of this CLCB */
UINT8 sccb_idx;
UINT8 *p_attr_buf; /* attribute buffer for read multiple, prepare write */
tBT_UUID uuid;
UINT16 conn_id; /* connection handle */
UINT16 clcb_idx;
UINT16 s_handle; /* starting handle of the active request */
UINT16 e_handle; /* ending handle of the active request */
UINT16 counter; /* used as offset, attribute length, num of prepare write */
UINT16 start_offset;
tGATT_AUTH_REQ auth_req; /* authentication requirement */
UINT8 operation; /* one logic channel can have one operation active */
UINT8 op_subtype; /* operation subtype */
UINT8 status; /* operation status */
BOOLEAN first_read_blob_after_read;
tGATT_READ_INC_UUID128 read_uuid128;
BOOLEAN in_use;
TIMER_LIST_ENT rsp_timer_ent; /* peer response timer */
UINT8 retry_count;
} tGATT_CLCB;
typedef struct {
tGATT_CLCB *p_clcb;
} tGATT_PENDING_ENC_CLCB;
#define GATT_SIGN_WRITE 1
#define GATT_VERIFY_SIGN_DATA 2
typedef struct {
BT_HDR hdr;
tGATT_CLCB *p_clcb;
} tGATT_SIGN_WRITE_OP;
typedef struct {
BT_HDR hdr;
tGATT_TCB *p_tcb;
BT_HDR *p_data;
} tGATT_VERIFY_SIGN_OP;
typedef struct {
UINT16 clcb_idx;
BOOLEAN in_use;
} tGATT_SCCB;
typedef struct {
UINT16 handle;
UINT16 uuid;
UINT32 service_change;
} tGATT_SVC_CHG;
typedef struct {
tGATT_IF gatt_if[GATT_MAX_APPS];
tGATT_IF listen_gif[GATT_MAX_APPS];
BD_ADDR remote_bda;
BOOLEAN in_use;
} tGATT_BG_CONN_DEV;
#define GATT_SVC_CHANGED_CONNECTING 1 /* wait for connection */
#define GATT_SVC_CHANGED_SERVICE 2 /* GATT service discovery */
#define GATT_SVC_CHANGED_CHARACTERISTIC 3 /* service change char discovery */
#define GATT_SVC_CHANGED_DESCRIPTOR 4 /* service change CCC discoery */
#define GATT_SVC_CHANGED_CONFIGURE_CCCD 5 /* config CCC */
typedef struct {
UINT16 conn_id;
BOOLEAN in_use;
BOOLEAN connected;
BD_ADDR bda;
tBT_TRANSPORT transport;
/* GATT service change CCC related variables */
UINT8 ccc_stage;
UINT8 ccc_result;
UINT16 s_handle;
UINT16 e_handle;
} tGATT_PROFILE_CLCB;
typedef struct {
list_t *p_tcb_list;
fixed_queue_t *sign_op_queue;
tGATT_SR_REG sr_reg[GATT_MAX_SR_PROFILES];
UINT16 next_handle; /* next available handle */
tGATT_SVC_CHG gattp_attr; /* GATT profile attribute service change */
tGATT_IF gatt_if;
#if (GATTS_INCLUDED == TRUE)
tGATT_HDL_LIST_INFO hdl_list_info;
tGATT_HDL_LIST_ELEM hdl_list[GATT_MAX_SR_PROFILES];
tGATT_SRV_LIST_INFO srv_list_info;
tGATT_SRV_LIST_ELEM srv_list[GATT_MAX_SR_PROFILES];
#endif ///GATTS_INCLUDED == TRUE
fixed_queue_t *srv_chg_clt_q; /* service change clients queue */
fixed_queue_t *pending_new_srv_start_q; /* pending new service start queue */
tGATT_REG cl_rcb[GATT_MAX_APPS];
list_t *p_clcb_list; /* connection link control block*/
tGATT_SCCB sccb[GATT_MAX_SCCB]; /* sign complete callback function GATT_MAX_SCCB <= GATT_CL_MAX_LCB */
UINT8 trace_level;
UINT16 def_mtu_size;
#if GATT_CONFORMANCE_TESTING == TRUE
BOOLEAN enable_err_rsp;
UINT8 req_op_code;
UINT8 err_status;
UINT16 handle;
#endif
#if (GATTS_INCLUDED == TRUE)
tGATT_PROFILE_CLCB profile_clcb[GATT_MAX_APPS];
#endif ///GATTS_INCLUDED == TRUE
UINT16 handle_of_h_r; /* Handle of the handles reused characteristic value */
tGATT_APPL_INFO cb_info;
tGATT_HDL_CFG hdl_cfg;
tGATT_BG_CONN_DEV bgconn_dev[GATT_MAX_BG_CONN_DEV];
} tGATT_CB;
typedef struct{
UINT16 local_mtu;
} tGATT_DEFAULT;
#define GATT_SIZE_OF_SRV_CHG_HNDL_RANGE 4
#ifdef __cplusplus
extern "C" {
#endif
extern tGATT_DEFAULT gatt_default;
/* Global GATT data */
#if GATT_DYNAMIC_MEMORY == FALSE
extern tGATT_CB gatt_cb;
#else
extern tGATT_CB *gatt_cb_ptr;
#define gatt_cb (*gatt_cb_ptr)
#endif
#if GATT_CONFORMANCE_TESTING == TRUE
extern void gatt_set_err_rsp(BOOLEAN enable, UINT8 req_op_code, UINT8 err_status);
#endif
#ifdef __cplusplus
}
#endif
/* internal functions */
extern void gatt_init (void);
extern void gatt_free(void);
/* from gatt_main.c */
extern BOOLEAN gatt_disconnect (tGATT_TCB *p_tcb);
extern BOOLEAN gatt_act_connect (tGATT_REG *p_reg, BD_ADDR bd_addr, tBLE_ADDR_TYPE bd_addr_type, tBT_TRANSPORT transport);
extern BOOLEAN gatt_connect (BD_ADDR rem_bda, tBLE_ADDR_TYPE bd_addr_type, tGATT_TCB *p_tcb, tBT_TRANSPORT transport);
extern void gatt_data_process (tGATT_TCB *p_tcb, BT_HDR *p_buf);
extern void gatt_update_app_use_link_flag ( tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add, BOOLEAN check_acl_link);
extern void gatt_profile_db_init(void);
extern void gatt_set_ch_state(tGATT_TCB *p_tcb, tGATT_CH_STATE ch_state);
extern tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB *p_tcb);
extern void gatt_init_srv_chg(void);
extern void gatt_proc_srv_chg (void);
extern tGATT_STATUS gatt_send_srv_chg_ind (BD_ADDR peer_bda);
extern void gatt_chk_srv_chg(tGATTS_SRV_CHG *p_srv_chg_clt);
extern void gatt_add_a_bonded_dev_for_srv_chg (BD_ADDR bda);
/* from gatt_attr.c */
extern UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR bda);
/* Functions provided by att_protocol.c */
extern tGATT_STATUS attp_send_cl_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, tGATT_CL_MSG *p_msg);
extern BT_HDR *attp_build_sr_msg(tGATT_TCB *p_tcb, UINT8 op_code, tGATT_SR_MSG *p_msg);
extern tGATT_STATUS attp_send_sr_msg (tGATT_TCB *p_tcb, BT_HDR *p_msg);
extern tGATT_STATUS attp_send_msg_to_l2cap(tGATT_TCB *p_tcb, BT_HDR *p_toL2CAP);
/* utility functions */
extern UINT8 *gatt_dbg_op_name(UINT8 op_code);
#if (SDP_INCLUDED == TRUE && CLASSIC_BT_GATT_INCLUDED == TRUE)
extern UINT32 gatt_add_sdp_record (tBT_UUID *p_uuid, UINT16 start_hdl, UINT16 end_hdl);
#endif ///SDP_INCLUDED == TRUE && CLASSIC_BT_GATT_INCLUDED == TRUE
extern BOOLEAN gatt_parse_uuid_from_cmd(tBT_UUID *p_uuid, UINT16 len, UINT8 **p_data);
extern UINT8 gatt_build_uuid_to_stream(UINT8 **p_dst, tBT_UUID uuid);
extern BOOLEAN gatt_uuid_compare(tBT_UUID src, tBT_UUID tar);
extern void gatt_convert_uuid32_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT32 uuid_32);
extern void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport, UINT8 *p_sec_flag, UINT8 *p_key_size);
extern void gatt_start_rsp_timer(UINT16 clcb_idx);
extern void gatt_start_conf_timer(tGATT_TCB *p_tcb);
extern void gatt_rsp_timeout(TIMER_LIST_ENT *p_tle);
extern void gatt_ind_ack_timeout(TIMER_LIST_ENT *p_tle);
extern void gatt_start_ind_ack_timer(tGATT_TCB *p_tcb);
extern tGATT_STATUS gatt_send_error_rsp(tGATT_TCB *p_tcb, UINT8 err_code, UINT8 op_code, UINT16 handle, BOOLEAN deq);
extern void gatt_dbg_display_uuid(tBT_UUID bt_uuid);
extern tGATT_PENDING_ENC_CLCB *gatt_add_pending_enc_channel_clcb(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb );
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);
extern BOOLEAN gatt_is_srv_chg_ind_pending (tGATT_TCB *p_tcb);
extern tGATTS_SRV_CHG *gatt_is_bda_in_the_srv_chg_clt_list (BD_ADDR bda);
extern BOOLEAN gatt_find_the_connected_bda(UINT8 start_idx, BD_ADDR bda, UINT8 *p_found_idx, tBT_TRANSPORT *p_transport);
extern void gatt_set_srv_chg(void);
extern void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr);
extern tGATT_VALUE *gatt_add_pending_ind(tGATT_TCB *p_tcb, tGATT_VALUE *p_ind);
extern tGATTS_PENDING_NEW_SRV_START *gatt_add_pending_new_srv_start( tGATTS_HNDL_RANGE *p_new_srv_start);
extern void gatt_free_srvc_db_buffer_app_id(tBT_UUID *p_app_id);
extern BOOLEAN gatt_update_listen_mode(void);
extern BOOLEAN gatt_cl_send_next_cmd_inq(tGATT_TCB *p_tcb);
/* reserved handle list */
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);
extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_handle(UINT16 handle);
extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_attr_handle(UINT16 attr_handle);
extern tGATT_HDL_LIST_ELEM *gatt_alloc_hdl_buffer(void);
extern void gatt_free_hdl_buffer(tGATT_HDL_LIST_ELEM *p);
extern void gatt_free_attr_value_buffer(tGATT_HDL_LIST_ELEM *p);
extern BOOLEAN gatt_is_last_attribute(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_start, tBT_UUID value);
extern void gatt_update_last_pri_srv_info(tGATT_SRV_LIST_INFO *p_list);
extern BOOLEAN gatt_add_a_srv_to_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_new);
extern BOOLEAN gatt_remove_a_srv_from_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_remove);
extern BOOLEAN gatt_add_an_item_to_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_new);
extern BOOLEAN gatt_remove_an_item_from_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_remove);
extern tGATTS_SRV_CHG *gatt_add_srv_chg_clt(tGATTS_SRV_CHG *p_srv_chg);
/* for background connection */
extern BOOLEAN gatt_update_auto_connect_dev (tGATT_IF gatt_if, BOOLEAN add, BD_ADDR bd_addr, BOOLEAN is_initiator);
extern BOOLEAN gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV *p_dev, tGATT_IF gatt_if);
extern BOOLEAN gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr);
extern UINT8 gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr);
extern BOOLEAN gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF *p_gatt_if);
extern tGATT_BG_CONN_DEV *gatt_find_bg_dev(BD_ADDR remote_bda);
extern void gatt_deregister_bgdev_list(tGATT_IF gatt_if);
extern void gatt_reset_bgdev_list(void);
/* server function */
extern UINT8 gatt_sr_find_i_rcb_by_handle(UINT16 handle);
extern UINT8 gatt_sr_find_i_rcb_by_app_id(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
extern UINT8 gatt_sr_alloc_rcb(tGATT_HDL_LIST_ELEM *p_list);
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);
extern void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
UINT16 len, UINT8 *p_data);
extern void gatt_sr_send_req_callback(UINT16 conn_id, UINT32 trans_id,
UINT8 op_code, tGATTS_DATA *p_req_data);
extern UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle);
extern BOOLEAN gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda);
/* */
extern tGATT_REG *gatt_get_regcb (tGATT_IF gatt_if);
extern BOOLEAN gatt_is_clcb_allocated (UINT16 conn_id);
extern tGATT_CLCB *gatt_clcb_alloc (UINT16 conn_id);
extern void gatt_clcb_dealloc (tGATT_CLCB *p_clcb);
extern tGATT_CLCB *gatt_clcb_find_by_conn_id(UINT16 conn_id);
extern tGATT_CLCB *gatt_clcb_find_by_idx(UINT16 cclcb_idx);
extern void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB *p_tcb );
extern BOOLEAN gatt_sr_is_cback_cnt_zero(tGATT_TCB *p_tcb );
extern BOOLEAN gatt_sr_is_prep_cnt_zero(tGATT_TCB *p_tcb );
extern void gatt_sr_reset_cback_cnt(tGATT_TCB *p_tcb );
extern void gatt_sr_reset_prep_cnt(tGATT_TCB *p_tcb );
extern void gatt_sr_update_cback_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
extern void gatt_sr_update_prep_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
extern BOOLEAN gatt_find_app_hold_link(tGATT_TCB *p_tcb, UINT8 start_idx, UINT8 *p_found_idx, tGATT_IF *p_gatt_if);
extern BOOLEAN gatt_find_specific_app_in_hold_link(tGATT_TCB *p_tcb, tGATT_IF p_gatt_if);
extern UINT8 gatt_num_apps_hold_link(tGATT_TCB *p_tcb);
extern UINT8 gatt_num_clcb_by_bd_addr(BD_ADDR bda);
extern tGATT_TCB *gatt_find_tcb_by_cid(UINT16 lcid);
extern tGATT_TCB *gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport);
extern tGATT_TCB *gatt_get_tcb_by_idx(UINT8 tcb_idx);
extern tGATT_TCB *gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport);
extern BOOLEAN gatt_send_ble_burst_data (BD_ADDR remote_bda, BT_HDR *p_buf);
extern void gatt_tcb_free( tGATT_TCB *p_tcb);
/* GATT client functions */
extern void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb);
extern UINT8 gatt_send_write_msg(tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, UINT16 handle,
UINT16 len, UINT16 offset, UINT8 *p_data);
extern void gatt_cleanup_upon_disc(BD_ADDR bda, UINT16 reason, tBT_TRANSPORT transport);
extern void gatt_end_operation(tGATT_CLCB *p_clcb, tGATT_STATUS status, void *p_data);
extern void gatt_act_discovery(tGATT_CLCB *p_clcb);
extern void gatt_act_read(tGATT_CLCB *p_clcb, UINT16 offset);
extern void gatt_act_write(tGATT_CLCB *p_clcb, UINT8 sec_act);
extern UINT8 gatt_act_send_browse(tGATT_TCB *p_tcb, UINT16 index, UINT8 op, UINT16 s_handle, UINT16 e_handle,
tBT_UUID uuid);
extern tGATT_CLCB *gatt_cmd_dequeue(tGATT_TCB *p_tcb, UINT8 *p_opcode);
extern BOOLEAN gatt_cmd_enq(tGATT_TCB *p_tcb, UINT16 clcb_idx, BOOLEAN to_send, UINT8 op_code, BT_HDR *p_buf);
extern void gatt_client_handle_server_rsp (tGATT_TCB *p_tcb, UINT8 op_code,
UINT16 len, UINT8 *p_data);
extern void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_EXEC_FLAG flag);
/* gatt_auth.c */
extern BOOLEAN gatt_security_check_start(tGATT_CLCB *p_clcb);
extern void gatt_verify_signature(tGATT_TCB *p_tcb, BT_HDR *p_buf);
extern tGATT_SEC_ACTION gatt_determine_sec_act(tGATT_CLCB *p_clcb );
extern tGATT_STATUS gatt_get_link_encrypt_status(tGATT_TCB *p_tcb);
extern tGATT_SEC_ACTION gatt_get_sec_act(tGATT_TCB *p_tcb);
extern void gatt_set_sec_act(tGATT_TCB *p_tcb, tGATT_SEC_ACTION sec_act);
/* gatt_db.c */
extern BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri, UINT16 s_hdl, UINT16 num_handle);
extern UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle, tBT_UUID service);
extern UINT16 gatts_add_characteristic (tGATT_SVC_DB *p_db, tGATT_PERM perm,
tGATT_CHAR_PROP property,
tBT_UUID *p_char_uuid, tGATT_ATTR_VAL *attr_val,
tGATTS_ATTR_CONTROL *control);
extern UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm,
tBT_UUID *p_dscp_uuid, tGATT_ATTR_VAL *attr_val,
tGATTS_ATTR_CONTROL *control);
extern tGATT_STATUS gatts_set_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
UINT16 length, UINT8 *value);
extern tGATT_STATUS gatts_get_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
UINT16 *length, UINT8 **value);
extern BOOLEAN gatts_is_auto_response(UINT16 attr_handle);
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,
UINT16 e_handle, tBT_UUID type, UINT16 *p_len, tGATT_SEC_FLAG sec_flag, UINT8 key_size, UINT32 trans_id, UINT16 *p_cur_handle);
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,
UINT8 *p_value, UINT16 *p_len, UINT16 mtu, tGATT_SEC_FLAG sec_flag, UINT8 key_size, UINT32 trans_id);
extern tGATT_STATUS gatts_write_attr_value_by_handle(tGATT_SVC_DB *p_db,
UINT16 handle, UINT16 offset,
UINT8 *p_value, UINT16 len);
extern tGATT_STATUS gatts_write_attr_perm_check (tGATT_SVC_DB *p_db, UINT8 op_code, UINT16 handle, UINT16 offset, UINT8 *p_data,
UINT16 len, tGATT_SEC_FLAG sec_flag, UINT8 key_size);
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);
extern void gatts_update_srv_list_elem(UINT8 i_sreg, UINT16 handle, BOOLEAN is_primary);
extern tBT_UUID *gatts_get_service_uuid (tGATT_SVC_DB *p_db);
extern void gatt_reset_bgdev_list(void);
extern uint16_t gatt_get_local_mtu(void);
extern void gatt_set_local_mtu(uint16_t mtu);
#endif
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