/******************************************************************************
*
* Copyright (C) 2009-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* this file contains GATT utility functions
*
******************************************************************************/
#include "bt_target.h"
#include "bt_utils.h"
#include "osi/include/osi.h"
#include <string.h>
#include "bt_common.h"
#include "stdio.h"
#include "btm_int.h"
#include "gatt_api.h"
#include "gatt_int.h"
#include "gattdefs.h"
#include "l2cdefs.h"
#include "sdp_api.h"
/* check if [x, y] and [a, b] have overlapping range */
#define GATT_VALIDATE_HANDLE_RANGE(x, y, a, b) ((y) >= (a) && (x) <= (b))
#define GATT_GET_NEXT_VALID_HANDLE(x) (((x) / 10 + 1) * 10)
const char* const op_code_name[] = {"UNKNOWN",
"ATT_RSP_ERROR",
"ATT_REQ_MTU",
"ATT_RSP_MTU",
"ATT_REQ_READ_INFO",
"ATT_RSP_READ_INFO",
"ATT_REQ_FIND_TYPE_VALUE",
"ATT_RSP_FIND_TYPE_VALUE",
"ATT_REQ_READ_BY_TYPE",
"ATT_RSP_READ_BY_TYPE",
"ATT_REQ_READ",
"ATT_RSP_READ",
"ATT_REQ_READ_BLOB",
"ATT_RSP_READ_BLOB",
"GATT_REQ_READ_MULTI",
"GATT_RSP_READ_MULTI",
"GATT_REQ_READ_BY_GRP_TYPE",
"GATT_RSP_READ_BY_GRP_TYPE",
"ATT_REQ_WRITE",
"ATT_RSP_WRITE",
"ATT_CMD_WRITE",
"ATT_SIGN_CMD_WRITE",
"ATT_REQ_PREPARE_WRITE",
"ATT_RSP_PREPARE_WRITE",
"ATT_REQ_EXEC_WRITE",
"ATT_RSP_EXEC_WRITE",
"Reserved",
"ATT_HANDLE_VALUE_NOTIF",
"Reserved",
"ATT_HANDLE_VALUE_IND",
"ATT_HANDLE_VALUE_CONF",
"ATT_OP_CODE_MAX"};
static const uint8_t base_uuid[LEN_UUID_128] = {
0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
extern fixed_queue_t* btu_general_alarm_queue;
/*******************************************************************************
*
* Function gatt_free_pending_ind
*
* Description Free all pending indications
*
* Returns None
*
******************************************************************************/
void gatt_free_pending_ind(tGATT_TCB* p_tcb) {
GATT_TRACE_DEBUG("%s", __func__);
if (p_tcb->pending_ind_q == NULL) return;
/* release all queued indications */
while (!fixed_queue_is_empty(p_tcb->pending_ind_q))
osi_free(fixed_queue_try_dequeue(p_tcb->pending_ind_q));
fixed_queue_free(p_tcb->pending_ind_q, NULL);
p_tcb->pending_ind_q = NULL;
}
/*******************************************************************************
*
* Function gatt_free_pending_enc_queue
*
* Description Free all buffers in pending encyption queue
*
* Returns None
*
******************************************************************************/
void gatt_free_pending_enc_queue(tGATT_TCB* p_tcb) {
GATT_TRACE_DEBUG("%s", __func__);
if (p_tcb->pending_enc_clcb == NULL) return;
/* release all queued indications */
while (!fixed_queue_is_empty(p_tcb->pending_enc_clcb))
osi_free(fixed_queue_try_dequeue(p_tcb->pending_enc_clcb));
fixed_queue_free(p_tcb->pending_enc_clcb, NULL);
p_tcb->pending_enc_clcb = NULL;
}
/*******************************************************************************
*
* Function gatt_delete_dev_from_srv_chg_clt_list
*
* Description Delete a device from the service changed client lit
*
* Returns None
*
******************************************************************************/
void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr) {
GATT_TRACE_DEBUG("gatt_delete_dev_from_srv_chg_clt_list");
tGATTS_SRV_CHG* p_buf = gatt_is_bda_in_the_srv_chg_clt_list(bd_addr);
if (p_buf != NULL) {
if (gatt_cb.cb_info.p_srv_chg_callback) {
/* delete from NV */
tGATTS_SRV_CHG_REQ req;
memcpy(req.srv_chg.bda, bd_addr, BD_ADDR_LEN);
(*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_REMOVE_CLIENT,
&req, NULL);
}
osi_free(fixed_queue_try_remove_from_queue(gatt_cb.srv_chg_clt_q, p_buf));
}
}
/*******************************************************************************
*
* Function gatt_set_srv_chg
*
* Description Set the service changed flag to true
*
* Returns None
*
******************************************************************************/
void gatt_set_srv_chg(void) {
GATT_TRACE_DEBUG("gatt_set_srv_chg");
if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q)) return;
list_t* list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q);
for (const list_node_t* node = list_begin(list); node != list_end(list);
node = list_next(node)) {
GATT_TRACE_DEBUG("found a srv_chg clt");
tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)list_node(node);
if (!p_buf->srv_changed) {
GATT_TRACE_DEBUG("set srv_changed to true");
p_buf->srv_changed = true;
tGATTS_SRV_CHG_REQ req;
memcpy(&req.srv_chg, p_buf, sizeof(tGATTS_SRV_CHG));
if (gatt_cb.cb_info.p_srv_chg_callback)
(*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_UPDATE_CLIENT,
&req, NULL);
}
}
}
/*******************************************************************************
*
* Function gatt_add_pending_ind
*
* Description Add a pending indication
*
* Returns Pointer to the current pending indication buffer, NULL no buffer
* available
*
******************************************************************************/
tGATT_VALUE* gatt_add_pending_ind(tGATT_TCB* p_tcb, tGATT_VALUE* p_ind) {
tGATT_VALUE* p_buf = (tGATT_VALUE*)osi_malloc(sizeof(tGATT_VALUE));
GATT_TRACE_DEBUG("%s", __func__);
GATT_TRACE_DEBUG("enqueue a pending indication");
memcpy(p_buf, p_ind, sizeof(tGATT_VALUE));
fixed_queue_enqueue(p_tcb->pending_ind_q, p_buf);
return p_buf;
}
/*******************************************************************************
*
* Function gatt_add_srv_chg_clt
*
* Description Add a service chnage client to the service change client queue
*
* Returns Pointer to the service change client buffer; Null no buffer
* available
*
******************************************************************************/
tGATTS_SRV_CHG* gatt_add_srv_chg_clt(tGATTS_SRV_CHG* p_srv_chg) {
tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)osi_malloc(sizeof(tGATTS_SRV_CHG));
GATT_TRACE_DEBUG("%s", __func__);
GATT_TRACE_DEBUG("enqueue a srv chg client");
memcpy(p_buf, p_srv_chg, sizeof(tGATTS_SRV_CHG));
fixed_queue_enqueue(gatt_cb.srv_chg_clt_q, p_buf);
return p_buf;
}
/**
* Returns pointer to the handle range buffer starting at handle |handle|,
* nullptr
* if no buffer available
*/
tGATT_HDL_LIST_ELEM* gatt_find_hdl_buffer_by_handle(uint16_t handle) {
for (auto& elem : *gatt_cb.hdl_list_info) {
if (elem.asgn_range.s_handle == handle) return &elem;
}
return nullptr;
}
/*******************************************************************************
*
* Description Find handle range buffer by app ID, service and service instance
* ID.
*
* Returns Pointer to the buffer, NULL no buffer available
*
******************************************************************************/
std::list<tGATT_HDL_LIST_ELEM>::iterator gatt_find_hdl_buffer_by_app_id(
tBT_UUID* p_app_uuid128, tBT_UUID* p_svc_uuid, uint16_t start_handle) {
auto end_it = gatt_cb.hdl_list_info->end();
auto it = gatt_cb.hdl_list_info->begin();
for (; it != end_it; it++) {
if (gatt_uuid_compare(*p_app_uuid128, it->asgn_range.app_uuid128) &&
gatt_uuid_compare(*p_svc_uuid, it->asgn_range.svc_uuid) &&
(start_handle == it->asgn_range.s_handle)) {
return it;
}
}
return it;
}
/**
* free the service attribute database buffers by the owner of the service app
* ID.
*/
void gatt_free_srvc_db_buffer_app_id(tBT_UUID* p_app_id) {
auto end_it = gatt_cb.hdl_list_info->end();
for (auto it = gatt_cb.hdl_list_info->begin(); it != end_it; it++) {
if (memcmp(p_app_id, &it->asgn_range.app_uuid128, sizeof(tBT_UUID)) == 0) {
it = gatt_cb.hdl_list_info->erase(it);
}
}
}
/*******************************************************************************
*
* Function gatt_find_the_connected_bda
*
* Description This function find the connected bda
*
* Returns true if found
*
******************************************************************************/
bool gatt_find_the_connected_bda(uint8_t start_idx, BD_ADDR bda,
uint8_t* p_found_idx,
tBT_TRANSPORT* p_transport) {
uint8_t i;
bool found = false;
GATT_TRACE_DEBUG("gatt_find_the_connected_bda start_idx=%d", start_idx);
for (i = start_idx; i < GATT_MAX_PHY_CHANNEL; i++) {
if (gatt_cb.tcb[i].in_use && gatt_cb.tcb[i].ch_state == GATT_CH_OPEN) {
memcpy(bda, gatt_cb.tcb[i].peer_bda, BD_ADDR_LEN);
*p_found_idx = i;
*p_transport = gatt_cb.tcb[i].transport;
found = true;
GATT_TRACE_DEBUG(
"gatt_find_the_connected_bda bda :%02x-%02x-%02x-%02x-%02x-%02x",
bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
break;
}
}
GATT_TRACE_DEBUG("gatt_find_the_connected_bda found=%d found_idx=%d", found,
i);
return found;
}
/*******************************************************************************
*
* Function gatt_is_srv_chg_ind_pending
*
* Description Check whether a service chnaged is in the indication pending
* queue or waiting for an Ack already
*
* Returns bool
*
******************************************************************************/
bool gatt_is_srv_chg_ind_pending(tGATT_TCB* p_tcb) {
bool srv_chg_ind_pending = false;
GATT_TRACE_DEBUG("gatt_is_srv_chg_ind_pending is_queue_empty=%d",
fixed_queue_is_empty(p_tcb->pending_ind_q));
if (p_tcb->indicate_handle == gatt_cb.handle_of_h_r) {
srv_chg_ind_pending = true;
} else if (!fixed_queue_is_empty(p_tcb->pending_ind_q)) {
list_t* list = fixed_queue_get_list(p_tcb->pending_ind_q);
for (const list_node_t* node = list_begin(list); node != list_end(list);
node = list_next(node)) {
tGATT_VALUE* p_buf = (tGATT_VALUE*)list_node(node);
if (p_buf->handle == gatt_cb.handle_of_h_r) {
srv_chg_ind_pending = true;
break;
}
}
}
GATT_TRACE_DEBUG("srv_chg_ind_pending = %d", srv_chg_ind_pending);
return srv_chg_ind_pending;
}
/*******************************************************************************
*
* Function gatt_is_bda_in_the_srv_chg_clt_list
*
* Description This function check the specified bda is in the srv chg
* client list or not
*
* Returns pointer to the found elemenet otherwise NULL
*
******************************************************************************/
tGATTS_SRV_CHG* gatt_is_bda_in_the_srv_chg_clt_list(BD_ADDR bda) {
tGATTS_SRV_CHG* p_buf = NULL;
GATT_TRACE_DEBUG(
"gatt_is_bda_in_the_srv_chg_clt_list :%02x-%02x-%02x-%02x-%02x-%02x",
bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q)) return NULL;
list_t* list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q);
for (const list_node_t* node = list_begin(list); node != list_end(list);
node = list_next(node)) {
tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)list_node(node);
if (!memcmp(bda, p_buf->bda, BD_ADDR_LEN)) {
GATT_TRACE_DEBUG("bda is in the srv chg clt list");
break;
}
}
return p_buf;
}
/*******************************************************************************
*
* Function gatt_is_bda_connected
*
* Description
*
* Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
*
******************************************************************************/
bool gatt_is_bda_connected(BD_ADDR bda) {
uint8_t i = 0;
bool connected = false;
for (i = 0; i < GATT_MAX_PHY_CHANNEL; i++) {
if (gatt_cb.tcb[i].in_use &&
!memcmp(gatt_cb.tcb[i].peer_bda, bda, BD_ADDR_LEN)) {
connected = true;
break;
}
}
return connected;
}
/*******************************************************************************
*
* Function gatt_find_i_tcb_by_addr
*
* Description Search for an empty tcb entry, and return the index.
*
* Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
*
******************************************************************************/
uint8_t gatt_find_i_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport) {
uint8_t i = 0;
for (; i < GATT_MAX_PHY_CHANNEL; i++) {
if (!memcmp(gatt_cb.tcb[i].peer_bda, bda, BD_ADDR_LEN) &&
gatt_cb.tcb[i].transport == transport) {
return i;
}
}
return GATT_INDEX_INVALID;
}
/*******************************************************************************
*
* Function gatt_get_tcb_by_idx
*
* Description The function get TCB using the TCB index
*
* Returns NULL if not found. Otherwise index to the tcb.
*
******************************************************************************/
tGATT_TCB* gatt_get_tcb_by_idx(uint8_t tcb_idx) {
tGATT_TCB* p_tcb = NULL;
if ((tcb_idx < GATT_MAX_PHY_CHANNEL) && gatt_cb.tcb[tcb_idx].in_use)
p_tcb = &gatt_cb.tcb[tcb_idx];
return p_tcb;
}
/*******************************************************************************
*
* Function gatt_find_tcb_by_addr
*
* Description Search for an empty tcb entry, and return pointer.
*
* Returns NULL if not found. Otherwise index to the tcb.
*
******************************************************************************/
tGATT_TCB* gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport) {
tGATT_TCB* p_tcb = NULL;
uint8_t i = 0;
i = gatt_find_i_tcb_by_addr(bda, transport);
if (i != GATT_INDEX_INVALID) p_tcb = &gatt_cb.tcb[i];
return p_tcb;
}
/*******************************************************************************
*
* Function gatt_find_i_tcb_free
*
* Description Search for an empty tcb entry, and return the index.
*
* Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
*
******************************************************************************/
uint8_t gatt_find_i_tcb_free(void) {
uint8_t i = 0, j = GATT_INDEX_INVALID;
for (i = 0; i < GATT_MAX_PHY_CHANNEL; i++) {
if (!gatt_cb.tcb[i].in_use) {
j = i;
break;
}
}
return j;
}
/*******************************************************************************
*
* Function gatt_allocate_tcb_by_bdaddr
*
* Description Locate or allocate a new tcb entry for matching bda.
*
* Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
*
******************************************************************************/
tGATT_TCB* gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport) {
uint8_t i = 0;
bool allocated = false;
tGATT_TCB* p_tcb = NULL;
/* search for existing tcb with matching bda */
i = gatt_find_i_tcb_by_addr(bda, transport);
/* find free tcb */
if (i == GATT_INDEX_INVALID) {
i = gatt_find_i_tcb_free();
allocated = true;
}
if (i != GATT_INDEX_INVALID) {
p_tcb = &gatt_cb.tcb[i];
if (allocated) {
memset(p_tcb, 0, sizeof(tGATT_TCB));
p_tcb->pending_enc_clcb = fixed_queue_new(SIZE_MAX);
p_tcb->pending_ind_q = fixed_queue_new(SIZE_MAX);
p_tcb->conf_timer = alarm_new("gatt.conf_timer");
p_tcb->ind_ack_timer = alarm_new("gatt.ind_ack_timer");
p_tcb->in_use = true;
p_tcb->tcb_idx = i;
p_tcb->transport = transport;
}
memcpy(p_tcb->peer_bda, bda, BD_ADDR_LEN);
}
return p_tcb;
}
/*******************************************************************************
*
* Function gatt_convert_uuid16_to_uuid128
*
* Description Convert a 16 bits UUID to be an standard 128 bits one.
*
* Returns true if two uuid match; false otherwise.
*
******************************************************************************/
void gatt_convert_uuid16_to_uuid128(uint8_t uuid_128[LEN_UUID_128],
uint16_t uuid_16) {
uint8_t* p = &uuid_128[LEN_UUID_128 - 4];
memcpy(uuid_128, base_uuid, LEN_UUID_128);
UINT16_TO_STREAM(p, uuid_16);
}
/*******************************************************************************
*
* Function gatt_convert_uuid32_to_uuid128
*
* Description Convert a 32 bits UUID to be an standard 128 bits one.
*
* Returns true if two uuid match; false otherwise.
*
******************************************************************************/
void gatt_convert_uuid32_to_uuid128(uint8_t uuid_128[LEN_UUID_128],
uint32_t uuid_32) {
uint8_t* p = &uuid_128[LEN_UUID_128 - 4];
memcpy(uuid_128, base_uuid, LEN_UUID_128);
UINT32_TO_STREAM(p, uuid_32);
}
/*******************************************************************************
*
* Function gatt_uuid_compare
*
* Description Compare two UUID to see if they are the same.
*
* Returns true if two uuid match; false otherwise.
*
******************************************************************************/
bool gatt_uuid_compare(tBT_UUID src, tBT_UUID tar) {
uint8_t su[LEN_UUID_128], tu[LEN_UUID_128];
uint8_t *ps, *pt;
/* any of the UUID is unspecified */
if (src.len == 0 || tar.len == 0) {
return true;
}
/* If both are 16-bit, we can do a simple compare */
if (src.len == LEN_UUID_16 && tar.len == LEN_UUID_16) {
return src.uu.uuid16 == tar.uu.uuid16;
}
/* If both are 32-bit, we can do a simple compare */
if (src.len == LEN_UUID_32 && tar.len == LEN_UUID_32) {
return src.uu.uuid32 == tar.uu.uuid32;
}
/* One or both of the UUIDs is 128-bit */
if (src.len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
gatt_convert_uuid16_to_uuid128(su, src.uu.uuid16);
ps = su;
} else if (src.len == LEN_UUID_32) {
gatt_convert_uuid32_to_uuid128(su, src.uu.uuid32);
ps = su;
} else
ps = src.uu.uuid128;
if (tar.len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
gatt_convert_uuid16_to_uuid128(tu, tar.uu.uuid16);
pt = tu;
} else if (tar.len == LEN_UUID_32) {
/* convert a 32 bits UUID to 128 bits value */
gatt_convert_uuid32_to_uuid128(tu, tar.uu.uuid32);
pt = tu;
} else
pt = tar.uu.uuid128;
return (memcmp(ps, pt, LEN_UUID_128) == 0);
}
/*******************************************************************************
*
* Function gatt_build_uuid_to_stream
*
* Description Add UUID into stream.
*
* Returns UUID length.
*
******************************************************************************/
uint8_t gatt_build_uuid_to_stream(uint8_t** p_dst, tBT_UUID uuid) {
uint8_t* p = *p_dst;
uint8_t len = 0;
if (uuid.len == LEN_UUID_16) {
UINT16_TO_STREAM(p, uuid.uu.uuid16);
len = LEN_UUID_16;
} else if (uuid.len ==
LEN_UUID_32) /* always convert 32 bits into 128 bits as alwats */
{
gatt_convert_uuid32_to_uuid128(p, uuid.uu.uuid32);
p += LEN_UUID_128;
len = LEN_UUID_128;
} else if (uuid.len == LEN_UUID_128) {
ARRAY_TO_STREAM(p, uuid.uu.uuid128, LEN_UUID_128);
len = LEN_UUID_128;
}
*p_dst = p;
return len;
}
/*******************************************************************************
*
* Function gatt_parse_uuid_from_cmd
*
* Description Convert a 128 bits UUID into a 16 bits UUID.
*
* Returns true if command sent, otherwise false.
*
******************************************************************************/
bool gatt_parse_uuid_from_cmd(tBT_UUID* p_uuid_rec, uint16_t uuid_size,
uint8_t** p_data) {
bool is_base_uuid, ret = true;
uint8_t xx;
uint8_t* p_uuid = *p_data;
memset(p_uuid_rec, 0, sizeof(tBT_UUID));
switch (uuid_size) {
case LEN_UUID_16:
p_uuid_rec->len = uuid_size;
STREAM_TO_UINT16(p_uuid_rec->uu.uuid16, p_uuid);
*p_data += LEN_UUID_16;
break;
case LEN_UUID_128:
/* See if we can compress his UUID down to 16 or 32bit UUIDs */
is_base_uuid = true;
for (xx = 0; xx < LEN_UUID_128 - 4; xx++) {
if (p_uuid[xx] != base_uuid[xx]) {
is_base_uuid = false;
break;
}
}
if (is_base_uuid) {
if ((p_uuid[LEN_UUID_128 - 1] == 0) &&
(p_uuid[LEN_UUID_128 - 2] == 0)) {
p_uuid += (LEN_UUID_128 - 4);
p_uuid_rec->len = LEN_UUID_16;
STREAM_TO_UINT16(p_uuid_rec->uu.uuid16, p_uuid);
} else {
p_uuid += (LEN_UUID_128 - LEN_UUID_32);
p_uuid_rec->len = LEN_UUID_32;
STREAM_TO_UINT32(p_uuid_rec->uu.uuid32, p_uuid);
}
}
if (!is_base_uuid) {
p_uuid_rec->len = LEN_UUID_128;
memcpy(p_uuid_rec->uu.uuid128, p_uuid, LEN_UUID_128);
}
*p_data += LEN_UUID_128;
break;
/* do not allow 32 bits UUID in ATT PDU now */
case LEN_UUID_32:
GATT_TRACE_ERROR("DO NOT ALLOW 32 BITS UUID IN ATT PDU");
return false;
case 0:
default:
if (uuid_size != 0) ret = false;
GATT_TRACE_WARNING("gatt_parse_uuid_from_cmd invalid uuid size");
break;
}
return (ret);
}
/*******************************************************************************
*
* Function gatt_start_rsp_timer
*
* Description Start a wait_for_response timer.
*
* Returns void
*
******************************************************************************/
void gatt_start_rsp_timer(uint16_t clcb_idx) {
tGATT_CLCB* p_clcb = &gatt_cb.clcb[clcb_idx];
period_ms_t timeout_ms = GATT_WAIT_FOR_RSP_TIMEOUT_MS;
if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
p_clcb->op_subtype == GATT_DISC_SRVC_ALL) {
timeout_ms = GATT_WAIT_FOR_DISC_RSP_TIMEOUT_MS;
}
// TODO: The tGATT_CLCB memory and state management needs cleanup,
// and then the timers can be allocated elsewhere.
if (p_clcb->gatt_rsp_timer_ent == NULL) {
p_clcb->gatt_rsp_timer_ent = alarm_new("gatt.gatt_rsp_timer_ent");
}
alarm_set_on_queue(p_clcb->gatt_rsp_timer_ent, timeout_ms, gatt_rsp_timeout,
p_clcb, btu_general_alarm_queue);
}
/*******************************************************************************
*
* Function gatt_start_conf_timer
*
* Description Start a wait_for_confirmation timer.
*
* Returns void
*
******************************************************************************/
void gatt_start_conf_timer(tGATT_TCB* p_tcb) {
alarm_set_on_queue(p_tcb->conf_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS,
gatt_indication_confirmation_timeout, p_tcb,
btu_general_alarm_queue);
}
/*******************************************************************************
*
* Function gatt_start_ind_ack_timer
*
* Description start the application ack timer
*
* Returns void
*
******************************************************************************/
void gatt_start_ind_ack_timer(tGATT_TCB* p_tcb) {
/* start notification cache timer */
alarm_set_on_queue(p_tcb->ind_ack_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS,
gatt_ind_ack_timeout, p_tcb, btu_general_alarm_queue);
}
/*******************************************************************************
*
* Function gatt_rsp_timeout
*
* Description Called when GATT wait for ATT command response timer expires
*
* Returns void
*
******************************************************************************/
void gatt_rsp_timeout(void* data) {
tGATT_CLCB* p_clcb = (tGATT_CLCB*)data;
if (p_clcb == NULL || p_clcb->p_tcb == NULL) {
GATT_TRACE_WARNING("%s clcb is already deleted", __func__);
return;
}
if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
p_clcb->op_subtype == GATT_DISC_SRVC_ALL &&
p_clcb->retry_count < GATT_REQ_RETRY_LIMIT) {
uint8_t rsp_code;
GATT_TRACE_WARNING("%s retry discovery primary service", __func__);
if (p_clcb != gatt_cmd_dequeue(p_clcb->p_tcb, &rsp_code)) {
GATT_TRACE_ERROR("%s command queue out of sync, disconnect", __func__);
} else {
p_clcb->retry_count++;
gatt_act_discovery(p_clcb);
return;
}
}
GATT_TRACE_WARNING("%s disconnecting...", __func__);
gatt_disconnect(p_clcb->p_tcb);
}
/*******************************************************************************
*
* Function gatt_indication_confirmation_timeout
*
* Description Called when the indication confirmation timer expires
*
* Returns void
*
******************************************************************************/
void gatt_indication_confirmation_timeout(void* data) {
tGATT_TCB* p_tcb = (tGATT_TCB*)data;
GATT_TRACE_WARNING("%s disconnecting...", __func__);
gatt_disconnect(p_tcb);
}
/*******************************************************************************
*
* Function gatt_ind_ack_timeout
*
* Description Called when GATT wait for ATT handle confirmation timeout
*
* Returns void
*
******************************************************************************/
void gatt_ind_ack_timeout(void* data) {
tGATT_TCB* p_tcb = (tGATT_TCB*)data;
GATT_TRACE_WARNING("%s send ack now", __func__);
if (p_tcb != NULL) p_tcb->ind_count = 0;
attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, NULL);
}
/*******************************************************************************
*
* Description Search for a service that owns a specific handle.
*
* Returns GATT_MAX_SR_PROFILES if not found. Otherwise the index of
* the service.
*
******************************************************************************/
std::list<tGATT_SRV_LIST_ELEM>::iterator gatt_sr_find_i_rcb_by_handle(
uint16_t handle) {
auto it = gatt_cb.srv_list_info->begin();
for (; it != gatt_cb.srv_list_info->end(); it++) {
if (it->s_hdl <= handle && it->e_hdl >= handle) {
return it;
}
}
return it;
}
/*******************************************************************************
*
* Function gatt_sr_get_sec_info
*
* Description Get the security flag and key size information for the peer
* device.
*
* Returns void
*
******************************************************************************/
void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport,
uint8_t* p_sec_flag, uint8_t* p_key_size) {
uint8_t sec_flag = 0;
BTM_GetSecurityFlagsByTransport(rem_bda, &sec_flag, transport);
sec_flag &= (GATT_SEC_FLAG_LKEY_UNAUTHED | GATT_SEC_FLAG_LKEY_AUTHED |
GATT_SEC_FLAG_ENCRYPTED);
*p_key_size = btm_ble_read_sec_key_size(rem_bda);
*p_sec_flag = sec_flag;
}
/*******************************************************************************
*
* Function gatt_sr_send_req_callback
*
* Description
*
*
* Returns void
*
******************************************************************************/
void gatt_sr_send_req_callback(uint16_t conn_id, uint32_t trans_id,
tGATTS_REQ_TYPE type, tGATTS_DATA* p_data) {
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
if (!p_reg) {
GATT_TRACE_ERROR("p_reg not found discard request");
return;
}
if (p_reg->in_use && p_reg->app_cb.p_req_cb) {
(*p_reg->app_cb.p_req_cb)(conn_id, trans_id, type, p_data);
} else {
GATT_TRACE_WARNING("Call back not found for application conn_id=%d",
conn_id);
}
}
/*******************************************************************************
*
* Function gatt_send_error_rsp
*
* Description This function sends an error response.
*
* Returns void
*
******************************************************************************/
tGATT_STATUS gatt_send_error_rsp(tGATT_TCB* p_tcb, uint8_t err_code,
uint8_t op_code, uint16_t handle, bool deq) {
tGATT_ERROR error;
tGATT_STATUS status;
BT_HDR* p_buf;
error.cmd_code = op_code;
error.reason = err_code;
error.handle = handle;
p_buf = attp_build_sr_msg(p_tcb, GATT_RSP_ERROR, (tGATT_SR_MSG*)&error);
if (p_buf != NULL) {
status = attp_send_sr_msg(p_tcb, p_buf);
} else
status = GATT_INSUF_RESOURCE;
if (deq) gatt_dequeue_sr_cmd(p_tcb);
return status;
}
/*******************************************************************************
*
* Function gatt_add_sdp_record
*
* Description This function add a SDP record for a GATT primary service
*
* Returns 0 if error else sdp handle for the record.
*
******************************************************************************/
uint32_t gatt_add_sdp_record(tBT_UUID* p_uuid, uint16_t start_hdl,
uint16_t end_hdl) {
tSDP_PROTOCOL_ELEM proto_elem_list[2];
uint32_t sdp_handle;
uint16_t list = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
uint8_t buff[60];
uint8_t* p = buff;
GATT_TRACE_DEBUG("gatt_add_sdp_record s_hdl=0x%x s_hdl=0x%x", start_hdl,
end_hdl);
sdp_handle = SDP_CreateRecord();
if (sdp_handle == 0) return 0;
switch (p_uuid->len) {
case LEN_UUID_16:
SDP_AddServiceClassIdList(sdp_handle, 1, &p_uuid->uu.uuid16);
break;
case LEN_UUID_32:
UINT8_TO_BE_STREAM(p, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
UINT32_TO_BE_STREAM(p, p_uuid->uu.uuid32);
SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST,
DATA_ELE_SEQ_DESC_TYPE, (uint32_t)(p - buff), buff);
break;
case LEN_UUID_128:
UINT8_TO_BE_STREAM(p, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
ARRAY_TO_BE_STREAM_REVERSE(p, p_uuid->uu.uuid128, LEN_UUID_128);
SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST,
DATA_ELE_SEQ_DESC_TYPE, (uint32_t)(p - buff), buff);
break;
default:
GATT_TRACE_ERROR("inavlid UUID len=%d", p_uuid->len);
SDP_DeleteRecord(sdp_handle);
return 0;
break;
}
/*** Fill out the protocol element sequence for SDP ***/
proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
proto_elem_list[0].num_params = 1;
proto_elem_list[0].params[0] = BT_PSM_ATT;
proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_ATT;
proto_elem_list[1].num_params = 2;
proto_elem_list[1].params[0] = start_hdl;
proto_elem_list[1].params[1] = end_hdl;
SDP_AddProtocolList(sdp_handle, 2, proto_elem_list);
/* Make the service browseable */
SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &list);
return (sdp_handle);
}
#if GATT_CONFORMANCE_TESTING == TRUE
/*******************************************************************************
*
* Function gatt_set_err_rsp
*
* Description This function is called to set the test confirm value
*
* Returns void
*
******************************************************************************/
void gatt_set_err_rsp(bool enable, uint8_t req_op_code, uint8_t err_status) {
GATT_TRACE_DEBUG("gatt_set_err_rsp enable=%d op_code=%d, err_status=%d",
enable, req_op_code, err_status);
gatt_cb.enable_err_rsp = enable;
gatt_cb.req_op_code = req_op_code;
gatt_cb.err_status = err_status;
}
#endif
/*******************************************************************************
*
* Function gatt_get_regcb
*
* Description The function returns the registration control block.
*
* Returns pointer to the registration control block or NULL
*
******************************************************************************/
tGATT_REG* gatt_get_regcb(tGATT_IF gatt_if) {
uint8_t ii = (uint8_t)gatt_if;
tGATT_REG* p_reg = NULL;
if (ii < 1 || ii > GATT_MAX_APPS) {
GATT_TRACE_WARNING("gatt_if out of range [ = %d]", ii);
return NULL;
}
// Index for cl_rcb is always 1 less than gatt_if.
p_reg = &gatt_cb.cl_rcb[ii - 1];
if (!p_reg->in_use) {
GATT_TRACE_WARNING("gatt_if found but not in use.");
return NULL;
}
return p_reg;
}
/*******************************************************************************
*
* Function gatt_is_clcb_allocated
*
* Description The function check clcb for conn_id is allocated or not
*
* Returns True already allocated
*
******************************************************************************/
bool gatt_is_clcb_allocated(uint16_t conn_id) {
uint8_t i = 0;
bool is_allocated = false;
for (i = 0; i < GATT_CL_MAX_LCB; i++) {
if (gatt_cb.clcb[i].in_use && (gatt_cb.clcb[i].conn_id == conn_id)) {
is_allocated = true;
break;
}
}
return is_allocated;
}
/*******************************************************************************
*
* Function gatt_clcb_alloc
*
* Description The function allocates a GATT connection link control block
*
* Returns NULL if not found. Otherwise pointer to the connection link
* block.
*
******************************************************************************/
tGATT_CLCB* gatt_clcb_alloc(uint16_t conn_id) {
uint8_t i = 0;
tGATT_CLCB* p_clcb = NULL;
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
for (i = 0; i < GATT_CL_MAX_LCB; i++) {
if (!gatt_cb.clcb[i].in_use) {
p_clcb = &gatt_cb.clcb[i];
p_clcb->in_use = true;
p_clcb->conn_id = conn_id;
p_clcb->clcb_idx = i;
p_clcb->p_reg = p_reg;
p_clcb->p_tcb = p_tcb;
break;
}
}
return p_clcb;
}
/*******************************************************************************
*
* Function gatt_clcb_dealloc
*
* Description The function de-allocates a GATT connection link control
* block
*
* Returns None
*
******************************************************************************/
void gatt_clcb_dealloc(tGATT_CLCB* p_clcb) {
if (p_clcb && p_clcb->in_use) {
alarm_free(p_clcb->gatt_rsp_timer_ent);
memset(p_clcb, 0, sizeof(tGATT_CLCB));
}
}
/*******************************************************************************
*
* Function gatt_find_tcb_by_cid
*
* Description The function searches for an empty entry
* in registration info table for GATT client
*
* Returns NULL if not found. Otherwise pointer to the rcb.
*
******************************************************************************/
tGATT_TCB* gatt_find_tcb_by_cid(uint16_t lcid) {
uint16_t xx = 0;
tGATT_TCB* p_tcb = NULL;
for (xx = 0; xx < GATT_MAX_PHY_CHANNEL; xx++) {
if (gatt_cb.tcb[xx].in_use && gatt_cb.tcb[xx].att_lcid == lcid) {
p_tcb = &gatt_cb.tcb[xx];
break;
}
}
return p_tcb;
}
/*******************************************************************************
*
* Function gatt_num_apps_hold_link
*
* Description The function find the number of applcaitions is holding the
* link
*
* Returns total number of applications holding this acl link.
*
******************************************************************************/
uint8_t gatt_num_apps_hold_link(tGATT_TCB* p_tcb) {
uint8_t i, num = 0;
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_tcb->app_hold_link[i]) num++;
}
GATT_TRACE_DEBUG("gatt_num_apps_hold_link num=%d", num);
return num;
}
/*******************************************************************************
*
* Function gatt_num_clcb_by_bd_addr
*
* Description The function searches all LCB with macthing bd address
*
* Returns total number of clcb found.
*
******************************************************************************/
uint8_t gatt_num_clcb_by_bd_addr(BD_ADDR bda) {
uint8_t i, num = 0;
for (i = 0; i < GATT_CL_MAX_LCB; i++) {
if (gatt_cb.clcb[i].in_use &&
memcmp(gatt_cb.clcb[i].p_tcb->peer_bda, bda, BD_ADDR_LEN) == 0)
num++;
}
return num;
}
/*******************************************************************************
*
* Function gatt_sr_update_cback_cnt
*
* Description The function searches all LCB with macthing bd address
*
* Returns total number of clcb found.
*
******************************************************************************/
void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB* p_tcb) {
uint8_t i;
if (p_tcb) {
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_tcb->prep_cnt[i]) {
p_tcb->sr_cmd.cback_cnt[i] = 1;
}
}
}
}
/*******************************************************************************
*
* Function gatt_sr_is_cback_cnt_zero
*
* Description The function searches all LCB with macthing bd address
*
* Returns True if thetotal application callback count is zero
*
******************************************************************************/
bool gatt_sr_is_cback_cnt_zero(tGATT_TCB* p_tcb) {
bool status = true;
uint8_t i;
if (p_tcb) {
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_tcb->sr_cmd.cback_cnt[i]) {
status = false;
break;
}
}
} else {
status = false;
}
return status;
}
/*******************************************************************************
*
* Function gatt_sr_is_prep_cnt_zero
*
* Description Check the prepare write request count is zero or not
*
* Returns True no prepare write request
*
******************************************************************************/
bool gatt_sr_is_prep_cnt_zero(tGATT_TCB* p_tcb) {
bool status = true;
uint8_t i;
if (p_tcb) {
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_tcb->prep_cnt[i]) {
status = false;
break;
}
}
} else {
status = false;
}
return status;
}
/*******************************************************************************
*
* Function gatt_sr_reset_cback_cnt
*
* Description Reset the application callback count to zero
*
* Returns None
*
******************************************************************************/
void gatt_sr_reset_cback_cnt(tGATT_TCB* p_tcb) {
uint8_t i;
if (p_tcb) {
for (i = 0; i < GATT_MAX_APPS; i++) {
p_tcb->sr_cmd.cback_cnt[i] = 0;
}
}
}
/*******************************************************************************
*
* Function gatt_sr_reset_prep_cnt
*
* Description Reset the prep write count to zero
*
* Returns None
*
******************************************************************************/
void gatt_sr_reset_prep_cnt(tGATT_TCB* p_tcb) {
uint8_t i;
if (p_tcb) {
for (i = 0; i < GATT_MAX_APPS; i++) {
p_tcb->prep_cnt[i] = 0;
}
}
}
/*******************************************************************************
*
* Function gatt_sr_update_cback_cnt
*
* Description Update the teh applicaiton callback count
*
* Returns None
*
******************************************************************************/
void gatt_sr_update_cback_cnt(tGATT_TCB* p_tcb, tGATT_IF gatt_if, bool is_inc,
bool is_reset_first) {
uint8_t idx = ((uint8_t)gatt_if) - 1;
if (p_tcb) {
if (is_reset_first) {
gatt_sr_reset_cback_cnt(p_tcb);
}
if (is_inc) {
p_tcb->sr_cmd.cback_cnt[idx]++;
} else {
if (p_tcb->sr_cmd.cback_cnt[idx]) {
p_tcb->sr_cmd.cback_cnt[idx]--;
}
}
}
}
/*******************************************************************************
*
* Function gatt_sr_update_prep_cnt
*
* Description Update the teh prepare write request count
*
* Returns None
*
******************************************************************************/
void gatt_sr_update_prep_cnt(tGATT_TCB* p_tcb, tGATT_IF gatt_if, bool is_inc,
bool is_reset_first) {
uint8_t idx = ((uint8_t)gatt_if) - 1;
GATT_TRACE_DEBUG(
"gatt_sr_update_prep_cnt tcb idx=%d gatt_if=%d is_inc=%d "
"is_reset_first=%d",
p_tcb->tcb_idx, gatt_if, is_inc, is_reset_first);
if (p_tcb) {
if (is_reset_first) {
gatt_sr_reset_prep_cnt(p_tcb);
}
if (is_inc) {
p_tcb->prep_cnt[idx]++;
} else {
if (p_tcb->prep_cnt[idx]) {
p_tcb->prep_cnt[idx]--;
}
}
}
}
/*******************************************************************************
*
* Function gatt_cancel_open
*
* Description Cancel open request
*
* Returns Boolean
*
******************************************************************************/
bool gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda) {
tGATT_TCB* p_tcb = NULL;
bool status = true;
p_tcb = gatt_find_tcb_by_addr(bda, BT_TRANSPORT_LE);
if (p_tcb) {
if (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN) {
GATT_TRACE_ERROR(
"GATT_CancelConnect - link connected Too late to cancel");
status = false;
} else {
gatt_update_app_use_link_flag(gatt_if, p_tcb, false, false);
if (!gatt_num_apps_hold_link(p_tcb)) {
gatt_disconnect(p_tcb);
}
}
}
return status;
}
/*******************************************************************************
*
* Function gatt_find_app_hold_link
*
* Description find the applicaiton that is holding the specified link
*
* Returns Boolean
*
******************************************************************************/
bool gatt_find_app_hold_link(tGATT_TCB* p_tcb, uint8_t start_idx,
uint8_t* p_found_idx, tGATT_IF* p_gatt_if) {
uint8_t i;
bool found = false;
for (i = start_idx; i < GATT_MAX_APPS; i++) {
if (p_tcb->app_hold_link[i]) {
*p_gatt_if = gatt_cb.clcb[i].p_reg->gatt_if;
*p_found_idx = i;
found = true;
break;
}
}
return found;
}
/*******************************************************************************
*
* Function gatt_cmd_enq
*
* Description Enqueue this command.
*
* Returns None.
*
******************************************************************************/
bool gatt_cmd_enq(tGATT_TCB* p_tcb, uint16_t clcb_idx, bool to_send,
uint8_t op_code, BT_HDR* p_buf) {
tGATT_CMD_Q* p_cmd = &p_tcb->cl_cmd_q[p_tcb->next_slot_inq];
p_cmd->to_send = to_send; /* waiting to be sent */
p_cmd->op_code = op_code;
p_cmd->p_cmd = p_buf;
p_cmd->clcb_idx = clcb_idx;
if (!to_send) {
p_tcb->pending_cl_req = p_tcb->next_slot_inq;
}
p_tcb->next_slot_inq++;
p_tcb->next_slot_inq %= GATT_CL_MAX_LCB;
return true;
}
/*******************************************************************************
*
* Function gatt_cmd_dequeue
*
* Description dequeue the command in the client CCB command queue.
*
* Returns total number of clcb found.
*
******************************************************************************/
tGATT_CLCB* gatt_cmd_dequeue(tGATT_TCB* p_tcb, uint8_t* p_op_code) {
tGATT_CMD_Q* p_cmd = &p_tcb->cl_cmd_q[p_tcb->pending_cl_req];
tGATT_CLCB* p_clcb = NULL;
if (p_tcb->pending_cl_req != p_tcb->next_slot_inq) {
p_clcb = &gatt_cb.clcb[p_cmd->clcb_idx];
*p_op_code = p_cmd->op_code;
p_tcb->pending_cl_req++;
p_tcb->pending_cl_req %= GATT_CL_MAX_LCB;
}
return p_clcb;
}
/*******************************************************************************
*
* Function gatt_send_write_msg
*
* Description This real function send out the ATT message for write.
*
* Returns status code
*
******************************************************************************/
uint8_t gatt_send_write_msg(tGATT_TCB* p_tcb, uint16_t clcb_idx,
uint8_t op_code, uint16_t handle, uint16_t len,
uint16_t offset, uint8_t* p_data) {
tGATT_CL_MSG msg;
msg.attr_value.handle = handle;
msg.attr_value.len = len;
msg.attr_value.offset = offset;
memcpy(msg.attr_value.value, p_data, len);
/* write by handle */
return attp_send_cl_msg(p_tcb, clcb_idx, op_code, &msg);
}
/*******************************************************************************
*
* Function gatt_act_send_browse
*
* Description This function ends a browse command request, including read
* information request and read by type request.
*
* Returns status code
*
******************************************************************************/
uint8_t gatt_act_send_browse(tGATT_TCB* p_tcb, uint16_t index, uint8_t op,
uint16_t s_handle, uint16_t e_handle,
tBT_UUID uuid) {
tGATT_CL_MSG msg;
msg.browse.s_handle = s_handle;
msg.browse.e_handle = e_handle;
memcpy(&msg.browse.uuid, &uuid, sizeof(tBT_UUID));
/* write by handle */
return attp_send_cl_msg(p_tcb, index, op, &msg);
}
/*******************************************************************************
*
* Function gatt_end_operation
*
* Description This function ends a discovery, send callback and finalize
* some control value.
*
* Returns 16 bits uuid.
*
******************************************************************************/
void gatt_end_operation(tGATT_CLCB* p_clcb, tGATT_STATUS status, void* p_data) {
tGATT_CL_COMPLETE cb_data;
tGATT_CMPL_CBACK* p_cmpl_cb =
(p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_cmpl_cb : NULL;
uint8_t op = p_clcb->operation, disc_type = GATT_DISC_MAX;
tGATT_DISC_CMPL_CB* p_disc_cmpl_cb =
(p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_disc_cmpl_cb : NULL;
uint16_t conn_id;
uint8_t operation;
GATT_TRACE_DEBUG("gatt_end_operation status=%d op=%d subtype=%d", status,
p_clcb->operation, p_clcb->op_subtype);
memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE));
if (p_cmpl_cb != NULL && p_clcb->operation != 0) {
if (p_clcb->operation == GATTC_OPTYPE_READ) {
cb_data.att_value.handle = p_clcb->s_handle;
cb_data.att_value.len = p_clcb->counter;
if (p_data && p_clcb->counter)
memcpy(cb_data.att_value.value, p_data, cb_data.att_value.len);
}
if (p_clcb->operation == GATTC_OPTYPE_WRITE) {
memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE));
cb_data.handle = cb_data.att_value.handle = p_clcb->s_handle;
if (p_clcb->op_subtype == GATT_WRITE_PREPARE) {
if (p_data) {
cb_data.att_value = *((tGATT_VALUE*)p_data);
} else {
GATT_TRACE_DEBUG("Rcv Prepare write rsp but no data");
}
}
}
if (p_clcb->operation == GATTC_OPTYPE_CONFIG)
cb_data.mtu = p_clcb->p_tcb->payload_size;
if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY) {
disc_type = p_clcb->op_subtype;
}
}
osi_free_and_reset((void**)&p_clcb->p_attr_buf);
operation = p_clcb->operation;
conn_id = p_clcb->conn_id;
alarm_cancel(p_clcb->gatt_rsp_timer_ent);
gatt_clcb_dealloc(p_clcb);
if (p_disc_cmpl_cb && (op == GATTC_OPTYPE_DISCOVERY))
(*p_disc_cmpl_cb)(conn_id, disc_type, status);
else if (p_cmpl_cb && op)
(*p_cmpl_cb)(conn_id, op, status, &cb_data);
else
GATT_TRACE_WARNING(
"gatt_end_operation not sent out op=%d p_disc_cmpl_cb:%p p_cmpl_cb:%p",
operation, p_disc_cmpl_cb, p_cmpl_cb);
}
/*******************************************************************************
*
* Function gatt_cleanup_upon_disc
*
* Description This function cleans up the control blocks when L2CAP
* channel disconnect.
*
* Returns 16 bits uuid.
*
******************************************************************************/
void gatt_cleanup_upon_disc(BD_ADDR bda, uint16_t reason,
tBT_TRANSPORT transport) {
tGATT_TCB* p_tcb = NULL;
tGATT_CLCB* p_clcb;
uint8_t i;
uint16_t conn_id;
tGATT_REG* p_reg = NULL;
GATT_TRACE_DEBUG("gatt_cleanup_upon_disc ");
p_tcb = gatt_find_tcb_by_addr(bda, transport);
if (p_tcb != NULL) {
GATT_TRACE_DEBUG("found p_tcb ");
gatt_set_ch_state(p_tcb, GATT_CH_CLOSE);
for (i = 0; i < GATT_CL_MAX_LCB; i++) {
p_clcb = &gatt_cb.clcb[i];
if (p_clcb->in_use && p_clcb->p_tcb == p_tcb) {
alarm_cancel(p_clcb->gatt_rsp_timer_ent);
GATT_TRACE_DEBUG("found p_clcb conn_id=%d clcb_idx=%d", p_clcb->conn_id,
p_clcb->clcb_idx);
if (p_clcb->operation != GATTC_OPTYPE_NONE)
gatt_end_operation(p_clcb, GATT_ERROR, NULL);
gatt_clcb_dealloc(p_clcb);
}
}
alarm_free(p_tcb->ind_ack_timer);
p_tcb->ind_ack_timer = NULL;
alarm_free(p_tcb->conf_timer);
p_tcb->conf_timer = NULL;
gatt_free_pending_ind(p_tcb);
gatt_free_pending_enc_queue(p_tcb);
fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL);
p_tcb->sr_cmd.multi_rsp_q = NULL;
for (i = 0; i < GATT_MAX_APPS; i++) {
p_reg = &gatt_cb.cl_rcb[i];
if (p_reg->in_use && p_reg->app_cb.p_conn_cb) {
conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
GATT_TRACE_DEBUG("found p_reg tcb_idx=%d gatt_if=%d conn_id=0x%x",
p_tcb->tcb_idx, p_reg->gatt_if, conn_id);
(*p_reg->app_cb.p_conn_cb)(p_reg->gatt_if, bda, conn_id, false, reason,
transport);
}
}
memset(p_tcb, 0, sizeof(tGATT_TCB));
}
GATT_TRACE_DEBUG("exit gatt_cleanup_upon_disc ");
}
/*******************************************************************************
*
* Function gatt_dbg_req_op_name
*
* Description Get op code description name, for debug information.
*
* Returns uint8_t *: name of the operation.
*
******************************************************************************/
uint8_t* gatt_dbg_op_name(uint8_t op_code) {
uint8_t pseduo_op_code_idx = op_code & (~GATT_WRITE_CMD_MASK);
if (op_code == GATT_CMD_WRITE) {
pseduo_op_code_idx = 0x14; /* just an index to op_code_name */
}
if (op_code == GATT_SIGN_CMD_WRITE) {
pseduo_op_code_idx = 0x15; /* just an index to op_code_name */
}
if (pseduo_op_code_idx <= GATT_OP_CODE_MAX)
return (uint8_t*)op_code_name[pseduo_op_code_idx];
else
return (uint8_t*)"Op Code Exceed Max";
}
/*******************************************************************************
*
* Function gatt_dbg_display_uuid
*
* Description Disaplay the UUID
*
* Returns None
*
******************************************************************************/
void gatt_dbg_display_uuid(tBT_UUID bt_uuid) {
char str_buf[50];
if (bt_uuid.len == LEN_UUID_16) {
snprintf(str_buf, sizeof(str_buf), "0x%04x", bt_uuid.uu.uuid16);
} else if (bt_uuid.len == LEN_UUID_32) {
snprintf(str_buf, sizeof(str_buf), "0x%08x",
(unsigned int)bt_uuid.uu.uuid32);
} else if (bt_uuid.len == LEN_UUID_128) {
int x = snprintf(
str_buf, sizeof(str_buf), "0x%02x%02x%02x%02x%02x%02x%02x%02x",
bt_uuid.uu.uuid128[15], bt_uuid.uu.uuid128[14], bt_uuid.uu.uuid128[13],
bt_uuid.uu.uuid128[12], bt_uuid.uu.uuid128[11], bt_uuid.uu.uuid128[10],
bt_uuid.uu.uuid128[9], bt_uuid.uu.uuid128[8]);
snprintf(
&str_buf[x], sizeof(str_buf) - x, "%02x%02x%02x%02x%02x%02x%02x%02x",
bt_uuid.uu.uuid128[7], bt_uuid.uu.uuid128[6], bt_uuid.uu.uuid128[5],
bt_uuid.uu.uuid128[4], bt_uuid.uu.uuid128[3], bt_uuid.uu.uuid128[2],
bt_uuid.uu.uuid128[1], bt_uuid.uu.uuid128[0]);
} else
strlcpy(str_buf, "Unknown UUID 0", sizeof(str_buf));
GATT_TRACE_DEBUG("UUID=[%s]", str_buf);
}
/*******************************************************************************
*
* Function gatt_is_bg_dev_for_app
*
* Description Is this one of the background devices for the application
*
* Returns true if it is, otherwise false
*
******************************************************************************/
bool gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV* p_dev, tGATT_IF gatt_if) {
uint8_t i;
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_dev->in_use && (p_dev->gatt_if[i] == gatt_if)) {
return true;
}
}
return false;
}
/*******************************************************************************
*
* Function gatt_find_bg_dev
*
* Description find background connection device from the list.
*
* Returns pointer to the device record
*
******************************************************************************/
tGATT_BG_CONN_DEV* gatt_find_bg_dev(BD_ADDR remote_bda) {
tGATT_BG_CONN_DEV* p_dev_list = &gatt_cb.bgconn_dev[0];
uint8_t i;
for (i = 0; i < GATT_MAX_BG_CONN_DEV; i++, p_dev_list++) {
if (p_dev_list->in_use &&
!memcmp(p_dev_list->remote_bda, remote_bda, BD_ADDR_LEN)) {
return p_dev_list;
}
}
return NULL;
}
/*******************************************************************************
*
* Function gatt_alloc_bg_dev
*
* Description allocate a background connection device record
*
* Returns pointer to the device record
*
******************************************************************************/
tGATT_BG_CONN_DEV* gatt_alloc_bg_dev(BD_ADDR remote_bda) {
tGATT_BG_CONN_DEV* p_dev_list = &gatt_cb.bgconn_dev[0];
uint8_t i;
for (i = 0; i < GATT_MAX_BG_CONN_DEV; i++, p_dev_list++) {
if (!p_dev_list->in_use) {
p_dev_list->in_use = true;
memcpy(p_dev_list->remote_bda, remote_bda, BD_ADDR_LEN);
return p_dev_list;
}
}
return NULL;
}
/*******************************************************************************
*
* Function gatt_add_bg_dev_list
*
* Description Add/remove a device from the background connection list
*
* Returns true if device added to the list; false failed
*
******************************************************************************/
bool gatt_add_bg_dev_list(tGATT_REG* p_reg, BD_ADDR bd_addr) {
tGATT_IF gatt_if = p_reg->gatt_if;
tGATT_BG_CONN_DEV* p_dev = NULL;
uint8_t i;
bool ret = false;
p_dev = gatt_find_bg_dev(bd_addr);
if (p_dev == NULL) {
p_dev = gatt_alloc_bg_dev(bd_addr);
}
if (p_dev) {
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_dev->gatt_if[i] == gatt_if) {
GATT_TRACE_ERROR("device already in iniator white list");
return true;
} else if (p_dev->gatt_if[i] == 0) {
p_dev->gatt_if[i] = gatt_if;
if (i == 0)
ret = BTM_BleUpdateBgConnDev(true, bd_addr);
else
ret = true;
break;
}
}
} else {
GATT_TRACE_ERROR("no device record available");
}
return ret;
}
/*******************************************************************************
*
* Function gatt_remove_bg_dev_for_app
*
* Description Remove the application interface for the specified
* background device
*
* Returns Boolean
*
******************************************************************************/
bool gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr) {
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
bool status;
if (p_tcb) gatt_update_app_use_link_flag(gatt_if, p_tcb, false, false);
status = gatt_update_auto_connect_dev(gatt_if, false, bd_addr);
return status;
}
/*******************************************************************************
*
* Function gatt_get_num_apps_for_bg_dev
*
* Description Get the number of applciations for the specified background
* device
*
* Returns uint8_t total number fo applications
*
******************************************************************************/
uint8_t gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr) {
tGATT_BG_CONN_DEV* p_dev = NULL;
uint8_t i;
uint8_t cnt = 0;
p_dev = gatt_find_bg_dev(bd_addr);
if (p_dev != NULL) {
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_dev->gatt_if[i]) cnt++;
}
}
return cnt;
}
/*******************************************************************************
*
* Function gatt_find_app_for_bg_dev
*
* Description Find the application interface for the specified background
* device
*
* Returns Boolean
*
******************************************************************************/
bool gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF* p_gatt_if) {
tGATT_BG_CONN_DEV* p_dev = NULL;
uint8_t i;
bool ret = false;
p_dev = gatt_find_bg_dev(bd_addr);
if (p_dev == NULL) {
return ret;
}
for (i = 0; i < GATT_MAX_APPS; i++) {
if (p_dev->gatt_if[i] != 0) {
*p_gatt_if = p_dev->gatt_if[i];
ret = true;
break;
}
}
return ret;
}
/*******************************************************************************
*
* Function gatt_remove_bg_dev_from_list
*
* Description add/remove device from the back ground connection device
* list or listening to advertising list.
*
* Returns pointer to the device record
*
******************************************************************************/
bool gatt_remove_bg_dev_from_list(tGATT_REG* p_reg, BD_ADDR bd_addr) {
tGATT_IF gatt_if = p_reg->gatt_if;
tGATT_BG_CONN_DEV* p_dev = NULL;
uint8_t i, j;
bool ret = false;
p_dev = gatt_find_bg_dev(bd_addr);
if (p_dev == NULL) {
return ret;
}
for (i = 0; i < GATT_MAX_APPS && (p_dev->gatt_if[i] > 0); i++) {
if (p_dev->gatt_if[i] == gatt_if) {
p_dev->gatt_if[i] = 0;
/* move all element behind one forward */
for (j = i + 1; j < GATT_MAX_APPS; j++)
p_dev->gatt_if[j - 1] = p_dev->gatt_if[j];
if (p_dev->gatt_if[0] == 0)
ret = BTM_BleUpdateBgConnDev(false, p_dev->remote_bda);
else
ret = true;
break;
}
}
if (i != GATT_MAX_APPS && p_dev->gatt_if[0] == 0) {
memset(p_dev, 0, sizeof(tGATT_BG_CONN_DEV));
}
return ret;
}
/*******************************************************************************
*
* Function gatt_deregister_bgdev_list
*
* Description deregister all related back ground connetion device.
*
* Returns pointer to the device record
*
******************************************************************************/
void gatt_deregister_bgdev_list(tGATT_IF gatt_if) {
tGATT_BG_CONN_DEV* p_dev_list = &gatt_cb.bgconn_dev[0];
uint8_t i, j, k;
/* update the BG conn device list */
for (i = 0; i < GATT_MAX_BG_CONN_DEV; i++, p_dev_list++) {
if (p_dev_list->in_use) {
for (j = 0; j < GATT_MAX_APPS; j++) {
if (p_dev_list->gatt_if[j] == 0) break;
if (p_dev_list->gatt_if[j] == gatt_if) {
for (k = j + 1; k < GATT_MAX_APPS; k++)
p_dev_list->gatt_if[k - 1] = p_dev_list->gatt_if[k];
if (p_dev_list->gatt_if[0] == 0)
BTM_BleUpdateBgConnDev(false, p_dev_list->remote_bda);
}
}
}
}
}
/*******************************************************************************
*
* Function gatt_reset_bgdev_list
*
* Description reset bg device list
*
* Returns pointer to the device record
*
******************************************************************************/
void gatt_reset_bgdev_list(void) {
memset(&gatt_cb.bgconn_dev, 0,
sizeof(tGATT_BG_CONN_DEV) * GATT_MAX_BG_CONN_DEV);
}
/*******************************************************************************
*
* Function gatt_update_auto_connect_dev
*
* Description This function add or remove a device for background
* connection procedure.
*
* Parameters gatt_if: Application ID.
* add: add peer device
* bd_addr: peer device address.
*
* Returns true if connection started; false otherwise.
*
******************************************************************************/
bool gatt_update_auto_connect_dev(tGATT_IF gatt_if, bool add, BD_ADDR bd_addr) {
bool ret = false;
tGATT_REG* p_reg;
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
GATT_TRACE_API("gatt_update_auto_connect_dev ");
/* Make sure app is registered */
p_reg = gatt_get_regcb(gatt_if);
if (p_reg == NULL) {
GATT_TRACE_ERROR("gatt_update_auto_connect_dev - gatt_if is not registered",
gatt_if);
return (false);
}
if (add) {
ret = gatt_add_bg_dev_list(p_reg, bd_addr);
if (ret && p_tcb != NULL) {
/* if a connected device, update the link holding number */
gatt_update_app_use_link_flag(gatt_if, p_tcb, true, true);
}
} else {
ret = gatt_remove_bg_dev_from_list(p_reg, bd_addr);
}
return ret;
}
/*******************************************************************************
*
* Function gatt_add_pending_new_srv_start
*
* Description Add a pending new srv start to the new service start queue
*
* Returns Pointer to the new service start buffer, NULL no buffer available
*
******************************************************************************/
tGATT_PENDING_ENC_CLCB* gatt_add_pending_enc_channel_clcb(tGATT_TCB* p_tcb,
tGATT_CLCB* p_clcb) {
tGATT_PENDING_ENC_CLCB* p_buf =
(tGATT_PENDING_ENC_CLCB*)osi_malloc(sizeof(tGATT_PENDING_ENC_CLCB));
GATT_TRACE_DEBUG("%s", __func__);
GATT_TRACE_DEBUG("enqueue a new pending encryption channel clcb");
p_buf->p_clcb = p_clcb;
fixed_queue_enqueue(p_tcb->pending_enc_clcb, p_buf);
return p_buf;
}