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esp-idf/components/bt/host/bluedroid/btc/profile/std/dis/dis_profile.c

292 wiersze
10 KiB
C
Czysty Wina Historia

/******************************************************************************
*
* Copyright (C) 1999-2013 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.
*
******************************************************************************/
#include "common/bt_target.h"
//#include "bt_utils.h"
//#include "stack/gatt_api.h"
#define LOG_TAG "bt_srvc"
//#include "osi/include/log.h"
#include "stdio.h"
#include "stdint.h"
#include "string.h"
#include "bta/bta_api.h"
#include "bta/bta_gatt_api.h"
#include "device/controller.h"
#include "gatt_int.h"
#include "common/bt_trace.h"
#include "stack/btm_api.h"
#include "stack/bt_types.h"
#include "dis_api.h"
#if BLE_INCLUDED == TRUE
#define UINT64_TO_STREAM(p, u64) {*(p)++ = (UINT8)(u64); *(p)++ = (UINT8)((u64) >> 8);*(p)++ = (UINT8)((u64) >> 16); *(p)++ = (UINT8)((u64) >> 24); \
*(p)++ = (UINT8)((u64) >> 32); *(p)++ = (UINT8)((u64) >> 40);*(p)++ = (UINT8)((u64) >> 48); *(p)++ = (UINT8)((u64) >> 56);}
#define STREAM_TO_UINT64(u64, p) {u64 = (((UINT64)(*(p))) + ((((UINT64)(*((p) + 1)))) << 8) + ((((UINT64)(*((p) + 2)))) << 16) + ((((UINT64)(*((p) + 3)))) << 24) \
+ ((((UINT64)(*((p) + 4)))) << 32) + ((((UINT64)(*((p) + 5)))) << 40) + ((((UINT64)(*((p) + 6)))) << 48) + ((((UINT64)(*((p) + 7)))) << 56)); (p) += 8;}
esp_bt_uuid_t uuid = {LEN_UUID_16, {UUID_SERVCLASS_DEVICE_INFO}};
UINT16 i = 0;
tDIS_ATTR_MASK dis_mask;
static const UINT16 dis_attr_uuid[DIS_MAX_CHAR_NUM] = {
GATT_UUID_SYSTEM_ID,
GATT_UUID_MODEL_NUMBER_STR,
GATT_UUID_SERIAL_NUMBER_STR,
GATT_UUID_FW_VERSION_STR,
GATT_UUID_HW_VERSION_STR,
GATT_UUID_SW_VERSION_STR,
GATT_UUID_MANU_NAME,
GATT_UUID_IEEE_DATA,
GATT_UUID_PNP_ID
};
tDIS_CB dis_cb;
static tDIS_ATTR_MASK dis_uuid_to_attr(UINT16 uuid)
{
switch (uuid) {
case GATT_UUID_SYSTEM_ID:
return DIS_ATTR_SYS_ID_BIT;
case GATT_UUID_MODEL_NUMBER_STR:
return DIS_ATTR_MODEL_NUM_BIT;
case GATT_UUID_SERIAL_NUMBER_STR:
return DIS_ATTR_SERIAL_NUM_BIT;
case GATT_UUID_FW_VERSION_STR:
return DIS_ATTR_FW_NUM_BIT;
case GATT_UUID_HW_VERSION_STR:
return DIS_ATTR_HW_NUM_BIT;
case GATT_UUID_SW_VERSION_STR:
return DIS_ATTR_SW_NUM_BIT;
case GATT_UUID_MANU_NAME:
return DIS_ATTR_MANU_NAME_BIT;
case GATT_UUID_IEEE_DATA:
return DIS_ATTR_IEEE_DATA_BIT;
case GATT_UUID_PNP_ID:
return DIS_ATTR_PNP_ID_BIT;
default:
return 0;
};
}
/*******************************************************************************
** dis_valid_handle_range
**
** validate a handle to be a DIS attribute handle or not.
*******************************************************************************/
BOOLEAN dis_valid_handle_range(UINT16 handle)
{
if (handle >= dis_cb.service_handle && handle <= dis_cb.max_handle) {
return TRUE;
} else {
return FALSE;
}
}
/*******************************************************************************
** dis_write_attr_value
**
** Process write DIS attribute request.
*******************************************************************************/
UINT8 dis_write_attr_value(tGATT_WRITE_REQ *p_data, esp_gatt_status_t *p_status)
{
UNUSED(p_data);
*p_status = GATT_WRITE_NOT_PERMIT;
return ESP_GATT_OK;
}
/*******************************************************************************
** DIS Attributes Database Server Request callback
*******************************************************************************/
/*******************************************************************************
** dis_s_read_attr_value
**
** Process read DIS attribute request.
*******************************************************************************/
void dis_s_read_attr_value (tGATTS_DATA *p_data, tGATT_VALUE *p_value, UINT32 trans_id, UINT16 conn_id)
{
tDIS_DB_ENTRY *p_db_attr = dis_cb.dis_attr;
UINT8 *p = p_value->value, i, *pp;
UINT16 offset = p_data->read_req.offset;
tGATT_STATUS st = ESP_GATT_NOT_FOUND;
UINT16 handle = p_data->read_req.handle;
bool is_long = p_data->read_req.is_long;
for (i = 0; i < DIS_MAX_CHAR_NUM; i ++, p_db_attr ++) {
if (handle == p_db_attr->handle) {
if ((p_db_attr->uuid == GATT_UUID_PNP_ID || p_db_attr->uuid == GATT_UUID_SYSTEM_ID) &&
is_long == TRUE) {
st = ESP_GATT_NOT_LONG;
break;
}
st = ESP_GATT_NOT_FOUND;
switch (p_db_attr->uuid) {
case GATT_UUID_MANU_NAME:
case GATT_UUID_MODEL_NUMBER_STR:
case GATT_UUID_SERIAL_NUMBER_STR:
case GATT_UUID_FW_VERSION_STR:
case GATT_UUID_HW_VERSION_STR:
case GATT_UUID_SW_VERSION_STR:
case GATT_UUID_IEEE_DATA:
pp = dis_cb.dis_value.data_string[p_db_attr->uuid - GATT_UUID_MODEL_NUMBER_STR];
if (pp != NULL) {
if (strlen ((char *)pp) > GATT_MAX_ATTR_LEN) {
p_value->len = GATT_MAX_ATTR_LEN;
} else {
p_value->len = (UINT16)strlen ((char *)pp);
}
} else {
p_value->len = 0;
}
if (offset > p_value->len) {
st = ESP_GATT_INVALID_OFFSET;
break;
} else {
p_value->len -= offset;
pp += offset;
ARRAY_TO_STREAM(p, pp, p_value->len);
GATT_TRACE_EVENT("GATT_UUID_MANU_NAME len=0x%04x", p_value->len);
}
break;
case GATT_UUID_SYSTEM_ID:
UINT64_TO_STREAM(p, dis_cb.dis_value.system_id); /* int_min */
p_value->len = DIS_SYSTEM_ID_SIZE;
break;
case GATT_UUID_PNP_ID:
UINT8_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id_src);
UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id);
UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_id);
UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_version);
p_value->len = DIS_PNP_ID_SIZE;
break;
}
break;
}
}
tGATTS_RSP rsp;
rsp.attr_value = *p_value;
esp_ble_gatts_send_rsp(conn_id, trans_id, st, &rsp);
}
/*******************************************************************************
**
** Function DIS_Init
**
** Description Initialize the Device Information Service Server.
**
*******************************************************************************/
void DIS_Init (esp_gatts_if_t gatt_if, tDIS_ATTR_MASK dis_attr_mask)
{
tGATT_STATUS status;
dis_mask = dis_attr_mask;
if (dis_cb.enabled) {
GATT_TRACE_ERROR("DIS already initalized");
return;
}
memset(&dis_cb, 0, sizeof(tDIS_CB));
esp_ble_gatts_create_srvc (gatt_if , &uuid, 0, DIS_MAX_ATTR_NUM, TRUE);
}
/*******************************************************************************
**
** Function dis_AddChar
**
** Description add characteristic for dis
**
*******************************************************************************/
void dis_AddChar(UINT16 service_id)
{
//dis_cb.service_handle = service_id;
//dis_cb.max_handle = service_id + DIS_MAX_ATTR_NUM;
tDIS_DB_ENTRY *p_db_attr = &dis_cb.dis_attr[0];
while (dis_mask != 0 && i < DIS_MAX_CHAR_NUM) {
uuid.uu.uuid16 = p_db_attr->uuid = dis_attr_uuid[i];
esp_ble_gatts_add_char(dis_cb.service_handle, &uuid, GATT_PERM_READ,
GATT_CHAR_PROP_BIT_READ);
p_db_attr ++;
i ++;
dis_mask >>= 1;
}
/*start service*/
esp_ble_gatts_start_srvc(dis_cb.service_handle);
dis_cb.enabled = TRUE;
}
/*******************************************************************************
**
** Function DIS_SrUpdate
**
** Description Update the DIS server attribute values
**
*******************************************************************************/
tDIS_STATUS DIS_SrUpdate(tDIS_ATTR_BIT dis_attr_bit, tDIS_ATTR *p_info)
{
UINT8 i = 1;
tDIS_STATUS st = DIS_SUCCESS;
if (dis_attr_bit & DIS_ATTR_SYS_ID_BIT) {
dis_cb.dis_value.system_id = p_info->system_id;
} else if (dis_attr_bit & DIS_ATTR_PNP_ID_BIT) {
dis_cb.dis_value.pnp_id.vendor_id = p_info->pnp_id.vendor_id;
dis_cb.dis_value.pnp_id.vendor_id_src = p_info->pnp_id.vendor_id_src;
dis_cb.dis_value.pnp_id.product_id = p_info->pnp_id.product_id;
dis_cb.dis_value.pnp_id.product_version = p_info->pnp_id.product_version;
} else {
st = DIS_ILLEGAL_PARAM;
while (dis_attr_bit && i < (DIS_MAX_CHAR_NUM - 1 )) {
if (dis_attr_bit & (UINT16)(1 << i)) {
if (dis_cb.dis_value.data_string[i - 1] != NULL) {
osi_free(dis_cb.dis_value.data_string[i - 1]);
}
/* coverity[OVERRUN-STATIC] False-positive : when i = 8, (1 << i) == DIS_ATTR_PNP_ID_BIT, and it will never come down here
CID 49902: Out-of-bounds read (OVERRUN_STATIC)
Overrunning static array "dis_cb.dis_value.data_string", with 7 elements, at position 7 with index variable "i".
*/
if ((dis_cb.dis_value.data_string[i - 1] = (UINT8 *)osi_malloc((UINT16)(p_info->data_str.len + 1))) != NULL) {
memcpy(dis_cb.dis_value.data_string[i - 1], p_info->data_str.p_data, p_info->data_str.len);
dis_cb.dis_value.data_string[i - 1][p_info->data_str.len] = 0; /* make sure null terminate */
st = DIS_SUCCESS;
} else {
st = DIS_NO_RESOURCES;
}
break;
}
i ++;
}
}
return st;
}
#endif /* BLE_INCLUDED */
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