4fd437d466
1. add feature of remove bonded devices. 2. fix SMP key size bug 3. fix privacy bug 4. fix gatt set value bug 5. add gatt security client demo 6. change gatt server/gatt client demo
1491 lines
56 KiB
C
1491 lines
56 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2009-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* this file contains GATT database building and query functions
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*
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******************************************************************************/
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#include "bt_target.h"
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#if BLE_INCLUDED == TRUE && GATTS_INCLUDED == TRUE
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#include "bt_trace.h"
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//#include "bt_utils.h"
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//#include <stdio.h>
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#include <string.h>
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#include "gatt_int.h"
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#include "l2c_api.h"
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#include "btm_int.h"
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/********************************************************************************
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** L O C A L F U N C T I O N P R O T O T Y P E S *
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*********************************************************************************/
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static BOOLEAN allocate_svc_db_buf(tGATT_SVC_DB *p_db);
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static void *allocate_attr_in_db(tGATT_SVC_DB *p_db, tBT_UUID *p_uuid, tGATT_PERM perm);
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static BOOLEAN deallocate_attr_in_db(tGATT_SVC_DB *p_db, void *p_attr);
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static BOOLEAN copy_extra_byte_in_db(tGATT_SVC_DB *p_db, void **p_dst, UINT16 len);
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static BOOLEAN gatts_db_add_service_declaration(tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri);
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static tGATT_STATUS gatts_send_app_read_request(tGATT_TCB *p_tcb, UINT8 op_code,
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UINT16 handle, UINT16 offset, UINT32 trans_id, BOOLEAN need_rsp);
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static BOOLEAN gatts_add_char_desc_value_check (tGATT_ATTR_VAL *attr_val, tGATTS_ATTR_CONTROL *control);
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/*******************************************************************************
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**
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** Function gatts_init_service_db
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**
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** Description This function initialize a memory space to be a service database.
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**
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** Parameter p_db: database pointer.
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** len: size of the memory space.
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**
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** Returns Status of te operation.
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**
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*******************************************************************************/
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BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri,
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UINT16 s_hdl, UINT16 num_handle)
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{
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GKI_init_q(&p_db->svc_buffer);
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if (!allocate_svc_db_buf(p_db)) {
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GATT_TRACE_ERROR("gatts_init_service_db failed, no resources\n");
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return FALSE;
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}
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GATT_TRACE_DEBUG("gatts_init_service_db\n");
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GATT_TRACE_DEBUG("s_hdl = %d num_handle = %d\n", s_hdl, num_handle );
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/* update service database information */
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p_db->next_handle = s_hdl;
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p_db->end_handle = s_hdl + num_handle;
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return gatts_db_add_service_declaration(p_db, p_service, is_pri);
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}
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/*******************************************************************************
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**
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** Function gatts_init_service_db
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**
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** Description This function initialize a memory space to be a service database.
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**
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** Parameter p_db: database pointer.
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** len: size of the memory space.
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**
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** Returns Status of te operation.
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**
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*******************************************************************************/
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tBT_UUID *gatts_get_service_uuid (tGATT_SVC_DB *p_db)
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{
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if (!p_db || !p_db->p_attr_list) {
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GATT_TRACE_ERROR("service DB empty\n");
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return NULL;
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} else {
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return &((tGATT_ATTR16 *)p_db->p_attr_list)->p_value->uuid;
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}
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}
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/*******************************************************************************
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**
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** Function gatts_check_attr_readability
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**
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** Description check attribute readability
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**
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** Returns status of operation.
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**
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*******************************************************************************/
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static tGATT_STATUS gatts_check_attr_readability(tGATT_ATTR16 *p_attr,
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UINT16 offset,
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BOOLEAN read_long,
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tGATT_SEC_FLAG sec_flag,
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UINT8 key_size)
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{
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UINT16 min_key_size;
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tGATT_PERM perm = p_attr->permission;
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UNUSED(offset);
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min_key_size = (((perm & GATT_ENCRYPT_KEY_SIZE_MASK) >> 12));
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if (min_key_size != 0 ) {
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min_key_size += 6;
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}
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if (!(perm & GATT_READ_ALLOWED)) {
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GATT_TRACE_ERROR( "GATT_READ_NOT_PERMIT\n");
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return GATT_READ_NOT_PERMIT;
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}
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if ((perm & GATT_READ_AUTH_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_UNAUTHED) &&
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!(sec_flag & BTM_SEC_FLAG_ENCRYPTED)) {
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GATT_TRACE_ERROR( "GATT_INSUF_AUTHENTICATION\n");
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return GATT_INSUF_AUTHENTICATION;
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}
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if ((perm & GATT_READ_MITM_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_AUTHED)) {
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GATT_TRACE_ERROR( "GATT_INSUF_AUTHENTICATION: MITM Required\n");
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return GATT_INSUF_AUTHENTICATION;
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}
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if ((perm & GATT_READ_ENCRYPTED_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED)) {
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GATT_TRACE_ERROR( "GATT_INSUF_ENCRYPTION\n");
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return GATT_INSUF_ENCRYPTION;
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}
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if ( (perm & GATT_READ_ENCRYPTED_REQUIRED) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED) && (key_size < min_key_size)) {
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GATT_TRACE_ERROR( "GATT_INSUF_KEY_SIZE\n");
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return GATT_INSUF_KEY_SIZE;
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}
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if (read_long) {
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switch (p_attr->uuid) {
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case GATT_UUID_PRI_SERVICE:
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case GATT_UUID_SEC_SERVICE:
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case GATT_UUID_CHAR_DECLARE:
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case GATT_UUID_INCLUDE_SERVICE:
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case GATT_UUID_CHAR_EXT_PROP:
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case GATT_UUID_CHAR_CLIENT_CONFIG:
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case GATT_UUID_CHAR_SRVR_CONFIG:
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case GATT_UUID_CHAR_PRESENT_FORMAT:
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GATT_TRACE_ERROR("GATT_NOT_LONG\n");
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return GATT_NOT_LONG;
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default:
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break;
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}
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}
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return GATT_SUCCESS;
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}
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/*******************************************************************************
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**
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** Function read_attr_value
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**
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** Description Utility function to read an attribute value.
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**
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** Parameter p_attr: pointer to the attribute to read.
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** offset: read offset.
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** p_value: output parameter to carry out the attribute value.
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** p_len: output parameter to carry out the attribute length.
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** read_long: this is a read blob request.
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** mtu: MTU
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** sec_flag: current link security status.
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** key_size: encryption key size.
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**
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** Returns status of operation.
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**
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*******************************************************************************/
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static tGATT_STATUS read_attr_value (void *p_attr,
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UINT16 offset,
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UINT8 **p_data,
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BOOLEAN read_long,
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UINT16 mtu,
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UINT16 *p_len,
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tGATT_SEC_FLAG sec_flag,
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UINT8 key_size)
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{
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UINT16 len = 0, uuid16 = 0;
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UINT8 *p = *p_data;
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tGATT_STATUS status;
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tGATT_ATTR16 *p_attr16 = (tGATT_ATTR16 *)p_attr;
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GATT_TRACE_DEBUG("read_attr_value uuid=0x%04x perm=0x%0x sec_flag=0x%x offset=%d read_long=%d\n",
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p_attr16->uuid,
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p_attr16->permission,
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sec_flag,
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offset,
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read_long);
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status = gatts_check_attr_readability((tGATT_ATTR16 *)p_attr, offset, read_long, sec_flag, key_size);
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if (status != GATT_SUCCESS) {
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return status;
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}
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if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_16) {
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uuid16 = p_attr16->uuid;
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}
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status = GATT_NO_RESOURCES;
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if (uuid16 == GATT_UUID_PRI_SERVICE || uuid16 == GATT_UUID_SEC_SERVICE) {
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len = p_attr16->p_value->uuid.len;
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if (mtu >= p_attr16->p_value->uuid.len) {
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gatt_build_uuid_to_stream(&p, p_attr16->p_value->uuid);
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status = GATT_SUCCESS;
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}
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} else if (uuid16 == GATT_UUID_CHAR_DECLARE) {
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len = (((tGATT_ATTR16 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_16) ? 5 : 19;
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if (mtu >= len) {
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UINT8_TO_STREAM(p, p_attr16->p_value->char_decl.property);
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UINT16_TO_STREAM(p, p_attr16->p_value->char_decl.char_val_handle);
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if (((tGATT_ATTR16 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_16) {
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UINT16_TO_STREAM(p, ((tGATT_ATTR16 *)(p_attr16->p_next))->uuid);
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}
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/* convert a 32bits UUID to 128 bits */
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else if (((tGATT_ATTR32 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_32) {
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gatt_convert_uuid32_to_uuid128 (p, ((tGATT_ATTR32 *)(p_attr16->p_next))->uuid);
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p += LEN_UUID_128;
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} else {
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ARRAY_TO_STREAM (p, ((tGATT_ATTR128 *)(p_attr16->p_next))->uuid, LEN_UUID_128);
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}
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status = GATT_SUCCESS;
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}
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} else if (uuid16 == GATT_UUID_INCLUDE_SERVICE) {
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if (p_attr16->p_value->incl_handle.service_type.len == LEN_UUID_16) {
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len = 6;
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} else {
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len = 4;
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}
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if (mtu >= len) {
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UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.s_handle);
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UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.e_handle);
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if (p_attr16->p_value->incl_handle.service_type.len == LEN_UUID_16) {
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UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.service_type.uu.uuid16);
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}
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status = GATT_SUCCESS;
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}
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} else { /* characteristic description or characteristic value */
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if (p_attr16->control.auto_rsp == GATT_RSP_BY_STACK) {
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if (p_attr16->p_value == NULL || p_attr16->p_value->attr_val.attr_val == NULL) {
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status = GATT_UNKNOWN_ERROR;
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}
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else if (offset > p_attr16->p_value->attr_val.attr_len){
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/*if offset equal to max_len, should respond with zero byte value
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//if offset is greater than max_len, should respond with an error*/
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status = GATT_INVALID_OFFSET;
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} else {
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UINT8 *value = (UINT8 *)(p_attr16->p_value->attr_val.attr_val) + offset;
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UINT16 len_left = p_attr16->p_value->attr_val.attr_len - offset;
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len = (mtu >= len_left) ? (len_left) : mtu;
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ARRAY_TO_STREAM(p, value, len);
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status = GATT_STACK_RSP;
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}
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} else {
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status = GATT_PENDING;
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}
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}
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*p_len = len;
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*p_data = p;
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return status;
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}
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/*******************************************************************************
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**
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** Function gatts_db_read_attr_value_by_type
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**
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** Description Query attribute value by attribute type.
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**
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** Parameter p_db: pointer to the attribute database.
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** p_rsp: Read By type response data.
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** s_handle: starting handle of the range we are looking for.
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** e_handle: ending handle of the range we are looking for.
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** type: Attribute type.
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** mtu: MTU.
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** sec_flag: current link security status.
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** key_size: encryption key size.
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**
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** Returns Status of the operation.
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**
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*******************************************************************************/
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tGATT_STATUS gatts_db_read_attr_value_by_type (tGATT_TCB *p_tcb,
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tGATT_SVC_DB *p_db,
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UINT8 op_code,
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BT_HDR *p_rsp,
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UINT16 s_handle,
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UINT16 e_handle,
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tBT_UUID type,
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UINT16 *p_len,
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tGATT_SEC_FLAG sec_flag,
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UINT8 key_size,
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UINT32 trans_id,
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UINT16 *p_cur_handle)
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{
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tGATT_STATUS status = GATT_NOT_FOUND;
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tGATT_ATTR16 *p_attr;
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UINT16 len = 0;
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UINT8 *p = (UINT8 *)(p_rsp + 1) + p_rsp->len + L2CAP_MIN_OFFSET;
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tBT_UUID attr_uuid;
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#if (defined(BLE_DELAY_REQUEST_ENC) && (BLE_DELAY_REQUEST_ENC == TRUE))
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UINT8 flag;
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#endif
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if (p_db && p_db->p_attr_list) {
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p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
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while (p_attr && p_attr->handle <= e_handle) {
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if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) {
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attr_uuid.len = LEN_UUID_16;
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attr_uuid.uu.uuid16 = p_attr->uuid;
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} else if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32) {
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attr_uuid.len = LEN_UUID_32;
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attr_uuid.uu.uuid32 = ((tGATT_ATTR32 *)p_attr)->uuid;
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} else {
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attr_uuid.len = LEN_UUID_128;
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memcpy(attr_uuid.uu.uuid128, ((tGATT_ATTR128 *)p_attr)->uuid, LEN_UUID_128);
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}
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if (p_attr->handle >= s_handle && gatt_uuid_compare(type, attr_uuid)) {
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if (*p_len <= 2) {
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status = GATT_NO_RESOURCES;
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break;
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}
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UINT16_TO_STREAM (p, p_attr->handle);
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status = read_attr_value ((void *)p_attr, 0, &p, FALSE, (UINT16)(*p_len - 2), &len, sec_flag, key_size);
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if (status == GATT_PENDING || status == GATT_STACK_RSP) {
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BOOLEAN need_rsp = (status != GATT_STACK_RSP);
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status = gatts_send_app_read_request(p_tcb, op_code, p_attr->handle, 0, trans_id, need_rsp);
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/* one callback at a time */
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break;
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} else if (status == GATT_SUCCESS) {
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if (p_rsp->offset == 0) {
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p_rsp->offset = len + 2;
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}
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if (p_rsp->offset == len + 2) {
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p_rsp->len += (len + 2);
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*p_len -= (len + 2);
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} else {
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GATT_TRACE_ERROR("format mismatch");
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status = GATT_NO_RESOURCES;
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break;
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}
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} else {
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*p_cur_handle = p_attr->handle;
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break;
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}
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}
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p_attr = (tGATT_ATTR16 *)p_attr->p_next;
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}
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}
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#if (defined(BLE_DELAY_REQUEST_ENC) && (BLE_DELAY_REQUEST_ENC == TRUE))
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if (BTM_GetSecurityFlags(p_tcb->peer_bda, &flag)) {
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if ((p_tcb->att_lcid == L2CAP_ATT_CID) && (status == GATT_PENDING) &&
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(type.uu.uuid16 == GATT_UUID_GAP_DEVICE_NAME)) {
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if ((flag & (BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_FLAG_ENCRYPTED)) ==
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BTM_SEC_LINK_KEY_KNOWN) {
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tACL_CONN *p;
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p = btm_bda_to_acl(p_tcb->peer_bda, BT_TRANSPORT_LE);
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if ((p != NULL) && (p->link_role == BTM_ROLE_MASTER)) {
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tBTM_BLE_SEC_ACT sec_act = BTM_BLE_SEC_ENCRYPT;
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btm_ble_set_encryption(p_tcb->peer_bda, &sec_act, p->link_role);
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}
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}
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}
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}
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#endif
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return status;
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}
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/*******************************************************************************
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**
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** Function gatts_add_included_service
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**
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** Description This function adds an included service into a database.
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**
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** Parameter p_db: database pointer.
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** inc_srvc_type: included service type.
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**
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** Returns Status of the operation.
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**
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*******************************************************************************/
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UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle,
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tBT_UUID service)
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{
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tGATT_ATTR16 *p_attr;
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tBT_UUID uuid = {LEN_UUID_16, {GATT_UUID_INCLUDE_SERVICE}};
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GATT_TRACE_DEBUG("gatts_add_included_service: s_hdl = 0x%04x e_hdl = 0x%04x uuid = 0x%04x",
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s_handle, e_handle, service.uu.uuid16);
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if (service.len == 0 || s_handle == 0 || e_handle == 0) {
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GATT_TRACE_ERROR("gatts_add_included_service Illegal Params.");
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return 0;
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}
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if ((p_attr = (tGATT_ATTR16 *) allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ)) != NULL) {
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if (copy_extra_byte_in_db(p_db, (void **)&p_attr->p_value, sizeof(tGATT_INCL_SRVC))) {
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p_attr->p_value->incl_handle.s_handle = s_handle;
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p_attr->p_value->incl_handle.e_handle = e_handle;
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memcpy(&p_attr->p_value->incl_handle.service_type, &service, sizeof(tBT_UUID));
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return p_attr->handle;
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} else {
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deallocate_attr_in_db(p_db, p_attr);
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}
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}
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return 0;
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}
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|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_add_characteristic
|
|
**
|
|
** Description This function add a characteristics and its descriptor into
|
|
** a servce identified by the service database pointer.
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** perm: permission (authentication and key size requirements)
|
|
** property: property of the characteristic.
|
|
** p_char: characteristic value information.
|
|
**
|
|
** Returns Status of te operation.
|
|
**
|
|
*******************************************************************************/
|
|
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)
|
|
{
|
|
tGATT_ATTR16 *p_char_decl, *p_char_val;
|
|
tBT_UUID uuid = {LEN_UUID_16, {GATT_UUID_CHAR_DECLARE}};
|
|
BOOLEAN status;
|
|
|
|
GATT_TRACE_DEBUG("gatts_add_characteristic perm=0x%0x property=0x%0x\n", perm, property);
|
|
/* parameter validation check */
|
|
status = gatts_add_char_desc_value_check(attr_val, control);
|
|
if (status == FALSE){
|
|
return 0;
|
|
}
|
|
|
|
|
|
if ((p_char_decl = (tGATT_ATTR16 *)allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ)) != NULL) {
|
|
if (!copy_extra_byte_in_db(p_db, (void **)&p_char_decl->p_value, sizeof(tGATT_CHAR_DECL))) {
|
|
deallocate_attr_in_db(p_db, p_char_decl);
|
|
return 0;
|
|
}
|
|
|
|
p_char_val = (tGATT_ATTR16 *)allocate_attr_in_db(p_db, p_char_uuid, perm);
|
|
|
|
if (p_char_val == NULL) {
|
|
deallocate_attr_in_db(p_db, p_char_decl);
|
|
return 0;
|
|
}
|
|
|
|
p_char_decl->p_value->char_decl.property = property;
|
|
p_char_decl->p_value->char_decl.char_val_handle = p_char_val->handle;
|
|
if (control != NULL) {
|
|
p_char_val->control.auto_rsp = control->auto_rsp;
|
|
} else {
|
|
p_char_val->control.auto_rsp = GATT_RSP_DEFAULT;
|
|
}
|
|
|
|
if (attr_val != NULL) {
|
|
if (!copy_extra_byte_in_db(p_db, (void **)&p_char_val->p_value, sizeof(tGATT_ATTR_VAL))) {
|
|
deallocate_attr_in_db(p_db, p_char_val);
|
|
return 0;
|
|
}
|
|
GATT_TRACE_DEBUG("attr_val->attr_len = %x, attr_val->attr_max_len = %x\n", attr_val->attr_len, attr_val->attr_max_len);
|
|
GATT_TRACE_DEBUG("attribute handle = %x\n", p_char_val->handle);
|
|
p_char_val->p_value->attr_val.attr_len = attr_val->attr_len;
|
|
p_char_val->p_value->attr_val.attr_max_len = attr_val->attr_max_len;
|
|
p_char_val->p_value->attr_val.attr_val = GKI_getbuf(attr_val->attr_max_len);
|
|
if (p_char_val->p_value->attr_val.attr_val == NULL) {
|
|
deallocate_attr_in_db(p_db, p_char_decl);
|
|
deallocate_attr_in_db(p_db, p_char_val);
|
|
GATT_TRACE_WARNING("Warning in %s, line=%d, insufficient resource to allocate for attribute value\n", __func__, __LINE__);
|
|
return 0;
|
|
}
|
|
else {
|
|
//add mask to indicate that p_value->attr_val.attr_val is dynamic allocated
|
|
p_char_val->mask |= GATT_ATTR_VALUE_ALLOCATED;
|
|
}
|
|
|
|
//initiate characteristic attribute value part
|
|
memset(p_char_val->p_value->attr_val.attr_val, 0, attr_val->attr_max_len);
|
|
if (attr_val->attr_val != NULL) {
|
|
if (attr_val->attr_max_len < attr_val->attr_len){
|
|
GATT_TRACE_ERROR("Error in %s, Line=%d, attribute actual length (%d) should not larger than max size (%d)\n",
|
|
__func__, __LINE__, attr_val->attr_len, attr_val->attr_max_len);
|
|
}
|
|
UINT16 actual_len = (attr_val->attr_max_len < attr_val->attr_len) ? (attr_val->attr_max_len) : (attr_val->attr_len);
|
|
memcpy(p_char_val->p_value->attr_val.attr_val, attr_val->attr_val, actual_len);
|
|
}
|
|
}
|
|
|
|
return p_char_val->handle;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatt_convertchar_descr_type
|
|
**
|
|
** Description This function convert a char descript UUID into descriptor type.
|
|
**
|
|
** Returns descriptor type.
|
|
**
|
|
*******************************************************************************/
|
|
UINT8 gatt_convertchar_descr_type(tBT_UUID *p_descr_uuid)
|
|
{
|
|
tBT_UUID std_descr = {LEN_UUID_16, {GATT_UUID_CHAR_EXT_PROP}};
|
|
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_EXT_DSCPTOR;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_USER_DSCPTOR;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_CLT_CONFIG;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_SVR_CONFIG;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_PRES_FORMAT;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_AGGR_FORMAT;
|
|
}
|
|
|
|
std_descr.uu.uuid16 ++;
|
|
if (gatt_uuid_compare(std_descr, * p_descr_uuid)) {
|
|
return GATT_DESCR_VALID_RANGE;
|
|
}
|
|
|
|
|
|
return GATT_DESCR_UNKNOWN;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_add_char_descr
|
|
**
|
|
** Description This function add a characteristics descriptor.
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** perm: characteristic descriptor permission type.
|
|
** char_dscp_tpye: the characteristic descriptor masks.
|
|
** p_dscp_params: characteristic descriptors values.
|
|
**
|
|
** Returns Status of the operation.
|
|
**
|
|
*******************************************************************************/
|
|
UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm,
|
|
tBT_UUID *p_descr_uuid, tGATT_ATTR_VAL *attr_val, tGATTS_ATTR_CONTROL *control)
|
|
{
|
|
tGATT_ATTR16 *p_char_dscptr;
|
|
BOOLEAN status;
|
|
|
|
GATT_TRACE_DEBUG("gatts_add_char_descr uuid=0x%04x\n", p_descr_uuid->uu.uuid16);
|
|
|
|
/* parameter validation check */
|
|
status = gatts_add_char_desc_value_check(attr_val, control);
|
|
if (status == FALSE){
|
|
return 0;
|
|
}
|
|
|
|
/* Add characteristic descriptors */
|
|
if ((p_char_dscptr = (tGATT_ATTR16 *)allocate_attr_in_db(p_db, p_descr_uuid, perm)) == NULL) {
|
|
deallocate_attr_in_db(p_db, p_char_dscptr);
|
|
GATT_TRACE_DEBUG("gatts_add_char_descr Fail for adding char descriptors.");
|
|
return 0;
|
|
} else {
|
|
p_char_dscptr->control.auto_rsp = (control == NULL) ? GATT_RSP_DEFAULT : (control->auto_rsp);
|
|
if (attr_val != NULL) {
|
|
if (!copy_extra_byte_in_db(p_db, (void **)&p_char_dscptr->p_value, sizeof(tGATT_ATTR_VAL))) {
|
|
deallocate_attr_in_db(p_db, p_char_dscptr);
|
|
return 0;
|
|
}
|
|
p_char_dscptr->p_value->attr_val.attr_len = attr_val->attr_len;
|
|
p_char_dscptr->p_value->attr_val.attr_max_len = attr_val->attr_max_len;
|
|
if (attr_val->attr_max_len != 0) {
|
|
p_char_dscptr->p_value->attr_val.attr_val = GKI_getbuf(attr_val->attr_max_len);
|
|
if (p_char_dscptr->p_value->attr_val.attr_val == NULL) {
|
|
deallocate_attr_in_db(p_db, p_char_dscptr);
|
|
GATT_TRACE_WARNING("Warning in %s, line=%d, insufficient resource to allocate for descriptor value\n", __func__, __LINE__);
|
|
return 0;
|
|
}
|
|
else {
|
|
//add mask to indicate that p_value->attr_val.attr_val is dynamic allocated
|
|
p_char_dscptr->mask |= GATT_ATTR_VALUE_ALLOCATED;
|
|
}
|
|
|
|
//initiate characteristic attribute value part
|
|
memset(p_char_dscptr->p_value->attr_val.attr_val, 0, attr_val->attr_max_len);
|
|
if(attr_val->attr_val != NULL) {
|
|
memcpy(p_char_dscptr->p_value->attr_val.attr_val, attr_val->attr_val, attr_val->attr_len);
|
|
}
|
|
}
|
|
}
|
|
return p_char_dscptr->handle;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_set_attribute_value
|
|
**
|
|
** Description This function add the attribute value in the database
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** attr_handle: the attribute handle
|
|
** length: the attribute value length
|
|
** value: the pointer to the data to be set to the attribute value in the database
|
|
**
|
|
** Returns Status of the operation.
|
|
**
|
|
*******************************************************************************/
|
|
tGATT_STATUS gatts_set_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
|
|
UINT16 length, UINT8 *value)
|
|
{
|
|
tGATT_ATTR16 *p_cur;
|
|
|
|
if (p_db == NULL) {
|
|
GATT_TRACE_DEBUG("gatts_set_attribute_value Fail:p_db is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
if (p_db->p_attr_list == NULL) {
|
|
GATT_TRACE_DEBUG("gatts_set_attribute_value Fail:p_db->p_attr_list is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
if ((length > 0) && (value == NULL)){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, value should not be NULL here\n",__func__, __LINE__);
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
|
|
p_cur = (tGATT_ATTR16 *) p_db->p_attr_list;
|
|
|
|
while (p_cur != NULL) {
|
|
if (p_cur->handle == attr_handle) {
|
|
/* for characteristic should not be set, return GATT_NOT_FOUND */
|
|
if (p_cur->uuid_type == GATT_ATTR_UUID_TYPE_16) {
|
|
switch (p_cur->uuid) {
|
|
case GATT_UUID_PRI_SERVICE:
|
|
case GATT_UUID_SEC_SERVICE:
|
|
case GATT_UUID_CHAR_DECLARE:
|
|
return GATT_NOT_FOUND;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* in other cases, value can be set*/
|
|
if ((p_cur->p_value == NULL) || (p_cur->p_value->attr_val.attr_val == NULL) \
|
|
|| (p_cur->p_value->attr_val.attr_max_len == 0)){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, attribute value should not be NULL here\n", __func__, __LINE__);
|
|
return GATT_NOT_FOUND;
|
|
} else if (p_cur->p_value->attr_val.attr_max_len < length) {
|
|
GATT_TRACE_ERROR("gatts_set_attribute_value failed:Invalid value length");
|
|
return GATT_INVALID_ATTR_LEN;
|
|
} else{
|
|
memcpy(p_cur->p_value->attr_val.attr_val, value, length);
|
|
p_cur->p_value->attr_val.attr_len = length;
|
|
}
|
|
break;
|
|
}
|
|
p_cur = p_cur->p_next;
|
|
}
|
|
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_get_attribute_value
|
|
**
|
|
** Description This function get the attribute value in the database
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** attr_handle: the attribute handle
|
|
** length: the attribute value length
|
|
** value: the pointer to the data to be get to the attribute value in the database
|
|
**
|
|
** Returns Status of the operation.
|
|
**
|
|
*******************************************************************************/
|
|
tGATT_STATUS gatts_get_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
|
|
UINT16 *length, UINT8 **value)
|
|
{
|
|
tGATT_ATTR16 *p_cur;
|
|
|
|
GATT_TRACE_DEBUG("attr_handle = %x\n", attr_handle);
|
|
|
|
if (p_db == NULL) {
|
|
GATT_TRACE_ERROR("gatts_get_attribute_value Fail:p_db is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
if (p_db->p_attr_list == NULL) {
|
|
GATT_TRACE_ERROR("gatts_get_attribute_value Fail:p_db->p_attr_list is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
if (length == NULL){
|
|
GATT_TRACE_ERROR("gatts_get_attribute_value Fail:length is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
if (value == NULL){
|
|
GATT_TRACE_ERROR("gatts_get_attribute_value Fail:value is NULL.\n");
|
|
return GATT_INVALID_PDU;
|
|
}
|
|
|
|
p_cur = (tGATT_ATTR16 *) p_db->p_attr_list;
|
|
|
|
while (p_cur != NULL) {
|
|
if (p_cur->handle == attr_handle) {
|
|
|
|
if (p_cur->uuid_type == GATT_ATTR_UUID_TYPE_16) {
|
|
switch (p_cur->uuid) {
|
|
case GATT_UUID_CHAR_DECLARE:
|
|
case GATT_UUID_INCLUDE_SERVICE:
|
|
break;
|
|
default:
|
|
if (p_cur->p_value && p_cur->p_value->attr_val.attr_len != 0) {
|
|
*length = p_cur->p_value->attr_val.attr_len;
|
|
*value = p_cur->p_value->attr_val.attr_val;
|
|
return GATT_SUCCESS;
|
|
} else {
|
|
GATT_TRACE_ERROR("gatts_get_attribute_vaule failt:the value length is 0");
|
|
return GATT_INVALID_ATTR_LEN;
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
if (p_cur->p_value->attr_val.attr_len != 0) {
|
|
*length = p_cur->p_value->attr_val.attr_len;
|
|
*value = p_cur->p_value->attr_val.attr_val;
|
|
return GATT_SUCCESS;
|
|
} else {
|
|
GATT_TRACE_ERROR("gatts_get_attribute_vaule failed:the value length is 0");
|
|
return GATT_INVALID_ATTR_LEN;
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
p_cur = p_cur->p_next;
|
|
}
|
|
|
|
return GATT_NOT_FOUND;
|
|
}
|
|
|
|
BOOLEAN gatts_is_auto_response(UINT16 attr_handle)
|
|
{
|
|
tGATT_HDL_LIST_ELEM *p_decl = NULL;
|
|
BOOLEAN rsp = FALSE;
|
|
tGATT_SVC_DB *p_db = NULL;
|
|
if ((p_decl = gatt_find_hdl_buffer_by_attr_handle(attr_handle)) == NULL) {
|
|
GATT_TRACE_DEBUG("Service not created\n");
|
|
return rsp;
|
|
}
|
|
|
|
p_db = &p_decl->svc_db;
|
|
|
|
tGATT_ATTR16 *p_cur, *p_next;
|
|
|
|
if (p_db == NULL) {
|
|
GATT_TRACE_DEBUG("gatts_get_attribute_value Fail:p_db is NULL.\n");
|
|
return rsp;
|
|
}
|
|
if (p_db->p_attr_list == NULL) {
|
|
GATT_TRACE_DEBUG("gatts_get_attribute_value Fail:p_db->p_attr_list is NULL.\n");
|
|
return rsp;
|
|
}
|
|
|
|
p_cur = (tGATT_ATTR16 *) p_db->p_attr_list;
|
|
p_next = (tGATT_ATTR16 *) p_cur->p_next;
|
|
|
|
for (; p_cur != NULL && p_next != NULL;
|
|
p_cur = p_next, p_next = (tGATT_ATTR16 *)p_next->p_next) {
|
|
if (p_cur->handle == attr_handle) {
|
|
if (p_cur->p_value != NULL && p_cur->control.auto_rsp == GATT_RSP_BY_STACK) {
|
|
rsp = true;
|
|
return rsp;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return rsp;
|
|
|
|
}
|
|
|
|
/*******************************************************************************/
|
|
/* Service Attribute Database Query Utility Functions */
|
|
/*******************************************************************************/
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_read_attr_value_by_handle
|
|
**
|
|
** Description Query attribute value by attribute handle.
|
|
**
|
|
** Parameter p_db: pointer to the attribute database.
|
|
** handle: Attribute handle to read.
|
|
** offset: Read offset.
|
|
** p_value: output parameter to carry out the attribute value.
|
|
** p_len: output parameter as attribute length read.
|
|
** read_long: this is a read blob request.
|
|
** mtu: MTU.
|
|
** sec_flag: current link security status.
|
|
** key_size: encryption key size
|
|
**
|
|
** Returns Status of operation.
|
|
**
|
|
*******************************************************************************/
|
|
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)
|
|
{
|
|
tGATT_STATUS status = GATT_NOT_FOUND;
|
|
tGATT_ATTR16 *p_attr;
|
|
UINT8 *pp = p_value;
|
|
|
|
if (p_db && p_db->p_attr_list) {
|
|
p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
|
|
|
|
while (p_attr && handle >= p_attr->handle) {
|
|
if (p_attr->handle == handle) {
|
|
status = read_attr_value (p_attr, offset, &pp,
|
|
(BOOLEAN)(op_code == GATT_REQ_READ_BLOB),
|
|
mtu, p_len, sec_flag, key_size);
|
|
|
|
if ((status == GATT_PENDING) || (status == GATT_STACK_RSP)) {
|
|
BOOLEAN need_rsp = (status != GATT_STACK_RSP);
|
|
status = gatts_send_app_read_request(p_tcb, op_code, p_attr->handle, offset, trans_id, need_rsp);
|
|
}
|
|
break;
|
|
}
|
|
p_attr = (tGATT_ATTR16 *)p_attr->p_next;
|
|
}
|
|
}
|
|
|
|
|
|
return status;
|
|
}
|
|
|
|
tGATT_STATUS gatts_write_attr_value_by_handle(tGATT_SVC_DB *p_db,
|
|
UINT16 handle, UINT16 offset,
|
|
UINT8 *p_value, UINT16 len)
|
|
{
|
|
tGATT_STATUS status = GATT_NOT_FOUND;
|
|
tGATT_ATTR16 *p_attr;
|
|
|
|
if (p_db && p_db->p_attr_list) {
|
|
p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
|
|
|
|
while (p_attr && handle >= p_attr->handle) {
|
|
if (p_attr->handle == handle ) {
|
|
if (p_attr->control.auto_rsp == GATT_RSP_BY_APP) {
|
|
return GATT_APP_RSP;
|
|
}
|
|
|
|
if ((p_attr->p_value != NULL) &&
|
|
(p_attr->p_value->attr_val.attr_max_len >= offset + len) &&
|
|
p_attr->p_value->attr_val.attr_val != NULL) {
|
|
memcpy(p_attr->p_value->attr_val.attr_val + offset, p_value, len);
|
|
p_attr->p_value->attr_val.attr_len = len + offset;
|
|
return GATT_SUCCESS;
|
|
} else if (p_attr->p_value->attr_val.attr_max_len < offset + len){
|
|
GATT_TRACE_DEBUG("Remote device try to write with a length larger then attribute's max length\n");
|
|
return GATT_INVALID_ATTR_LEN;
|
|
} else if ((p_attr->p_value == NULL) || (p_attr->p_value->attr_val.attr_val == NULL)){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, %s should not be NULL here\n", __func__, __LINE__, \
|
|
(p_attr->p_value == NULL) ? "p_value" : "attr_val.attr_val");
|
|
return GATT_UNKNOWN_ERROR;
|
|
}
|
|
}
|
|
|
|
p_attr = (tGATT_ATTR16 *)p_attr->p_next;
|
|
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_read_attr_perm_check
|
|
**
|
|
** Description Check attribute readability.
|
|
**
|
|
** Parameter p_db: pointer to the attribute database.
|
|
** handle: Attribute handle to read.
|
|
** offset: Read offset.
|
|
** p_value: output parameter to carry out the attribute value.
|
|
** p_len: output parameter as attribute length read.
|
|
** read_long: this is a read blob request.
|
|
** mtu: MTU.
|
|
** sec_flag: current link security status.
|
|
** key_size: encryption key size
|
|
**
|
|
** Returns Status of operation.
|
|
**
|
|
*******************************************************************************/
|
|
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)
|
|
{
|
|
tGATT_STATUS status = GATT_NOT_FOUND;
|
|
tGATT_ATTR16 *p_attr;
|
|
|
|
if (p_db && p_db->p_attr_list) {
|
|
p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
|
|
|
|
while (p_attr && handle >= p_attr->handle) {
|
|
if (p_attr->handle == handle) {
|
|
status = gatts_check_attr_readability (p_attr, 0,
|
|
is_long,
|
|
sec_flag, key_size);
|
|
break;
|
|
}
|
|
p_attr = (tGATT_ATTR16 *) p_attr->p_next;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_write_attr_perm_check
|
|
**
|
|
** Description Write attribute value into database.
|
|
**
|
|
** Parameter p_db: pointer to the attribute database.
|
|
** op_code:op code of this write.
|
|
** handle: handle of the attribute to write.
|
|
** offset: Write offset if write op code is write blob.
|
|
** p_data: Attribute value to write.
|
|
** len: attribute data length.
|
|
** sec_flag: current link security status.
|
|
** key_size: encryption key size
|
|
**
|
|
** Returns Status of the operation.
|
|
**
|
|
*******************************************************************************/
|
|
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)
|
|
{
|
|
tGATT_STATUS status = GATT_NOT_FOUND;
|
|
tGATT_ATTR16 *p_attr;
|
|
UINT16 max_size = 0;
|
|
tGATT_PERM perm;
|
|
UINT16 min_key_size;
|
|
|
|
GATT_TRACE_DEBUG( "gatts_write_attr_perm_check op_code=0x%0x handle=0x%04x offset=%d len=%d sec_flag=0x%0x key_size=%d",
|
|
op_code, handle, offset, len, sec_flag, key_size);
|
|
|
|
if (p_db != NULL) {
|
|
p_attr = (tGATT_ATTR16 *) p_db->p_attr_list;
|
|
|
|
while (p_attr != NULL) {
|
|
if (p_attr->handle == handle) {
|
|
perm = p_attr->permission;
|
|
min_key_size = (((perm & GATT_ENCRYPT_KEY_SIZE_MASK) >> 12));
|
|
if (min_key_size != 0 ) {
|
|
min_key_size += 6;
|
|
}
|
|
GATT_TRACE_DEBUG( "gatts_write_attr_perm_check p_attr->permission =0x%04x min_key_size==0x%04x",
|
|
p_attr->permission,
|
|
min_key_size);
|
|
|
|
if ((op_code == GATT_CMD_WRITE || op_code == GATT_REQ_WRITE)
|
|
&& (perm & GATT_WRITE_SIGNED_PERM)) {
|
|
/* use the rules for the mixed security see section 10.2.3*/
|
|
/* use security mode 1 level 2 when the following condition follows */
|
|
/* LE security mode 2 level 1 and LE security mode 1 level 2 */
|
|
if ((perm & GATT_PERM_WRITE_SIGNED) && (perm & GATT_PERM_WRITE_ENCRYPTED)) {
|
|
perm = GATT_PERM_WRITE_ENCRYPTED;
|
|
}
|
|
/* use security mode 1 level 3 when the following condition follows */
|
|
/* LE security mode 2 level 2 and security mode 1 and LE */
|
|
else if (((perm & GATT_PERM_WRITE_SIGNED_MITM) && (perm & GATT_PERM_WRITE_ENCRYPTED)) ||
|
|
/* LE security mode 2 and security mode 1 level 3 */
|
|
((perm & GATT_WRITE_SIGNED_PERM) && (perm & GATT_PERM_WRITE_ENC_MITM))) {
|
|
perm = GATT_PERM_WRITE_ENC_MITM;
|
|
}
|
|
}
|
|
|
|
if ((op_code == GATT_SIGN_CMD_WRITE) && !(perm & GATT_WRITE_SIGNED_PERM)) {
|
|
status = GATT_WRITE_NOT_PERMIT;
|
|
GATT_TRACE_DEBUG( "gatts_write_attr_perm_check - sign cmd write not allowed");
|
|
}
|
|
if ((op_code == GATT_SIGN_CMD_WRITE) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED)) {
|
|
status = GATT_INVALID_PDU;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - Error!! sign cmd write sent on a encypted link");
|
|
} else if (!(perm & GATT_WRITE_ALLOWED)) {
|
|
status = GATT_WRITE_NOT_PERMIT;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_WRITE_NOT_PERMIT");
|
|
}
|
|
/* require authentication, but not been authenticated */
|
|
else if ((perm & GATT_WRITE_AUTH_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_UNAUTHED)) {
|
|
status = GATT_INSUF_AUTHENTICATION;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION");
|
|
} else if ((perm & GATT_WRITE_MITM_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_AUTHED)) {
|
|
status = GATT_INSUF_AUTHENTICATION;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION: MITM required");
|
|
} else if ((perm & GATT_WRITE_ENCRYPTED_PERM ) && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED)) {
|
|
status = GATT_INSUF_ENCRYPTION;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_ENCRYPTION");
|
|
} else if ((perm & GATT_WRITE_ENCRYPTED_PERM ) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED) && (key_size < min_key_size)) {
|
|
status = GATT_INSUF_KEY_SIZE;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_KEY_SIZE");
|
|
}
|
|
/* LE security mode 2 attribute */
|
|
else if (perm & GATT_WRITE_SIGNED_PERM && op_code != GATT_SIGN_CMD_WRITE && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED)
|
|
&& (perm & GATT_WRITE_ALLOWED) == 0) {
|
|
status = GATT_INSUF_AUTHENTICATION;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION: LE security mode 2 required");
|
|
} else { /* writable: must be char value declaration or char descritpors */
|
|
if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) {
|
|
switch (p_attr->uuid) {
|
|
case GATT_UUID_CHAR_PRESENT_FORMAT:/* should be readable only */
|
|
case GATT_UUID_CHAR_EXT_PROP:/* should be readable only */
|
|
case GATT_UUID_CHAR_AGG_FORMAT: /* should be readable only */
|
|
case GATT_UUID_CHAR_VALID_RANGE:
|
|
status = GATT_WRITE_NOT_PERMIT;
|
|
break;
|
|
|
|
case GATT_UUID_CHAR_CLIENT_CONFIG:
|
|
/* coverity[MISSING_BREAK] */
|
|
/* intnended fall through, ignored */
|
|
/* fall through */
|
|
case GATT_UUID_CHAR_SRVR_CONFIG:
|
|
max_size = 2;
|
|
case GATT_UUID_CHAR_DESCRIPTION:
|
|
default: /* any other must be character value declaration */
|
|
status = GATT_SUCCESS;
|
|
break;
|
|
}
|
|
} else if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_128 ||
|
|
p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32) {
|
|
status = GATT_SUCCESS;
|
|
} else {
|
|
status = GATT_INVALID_PDU;
|
|
}
|
|
|
|
if (p_data == NULL && len > 0) {
|
|
status = GATT_INVALID_PDU;
|
|
}
|
|
/* these attribute does not allow write blob */
|
|
// btla-specific ++
|
|
else if ( (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) &&
|
|
(p_attr->uuid == GATT_UUID_CHAR_CLIENT_CONFIG ||
|
|
p_attr->uuid == GATT_UUID_CHAR_SRVR_CONFIG) )
|
|
// btla-specific --
|
|
{
|
|
if (op_code == GATT_REQ_PREPARE_WRITE && offset != 0) { /* does not allow write blob */
|
|
status = GATT_NOT_LONG;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_NOT_LONG");
|
|
} else if (len != max_size) { /* data does not match the required format */
|
|
status = GATT_INVALID_ATTR_LEN;
|
|
GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INVALID_PDU");
|
|
} else {
|
|
status = GATT_SUCCESS;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
} else {
|
|
p_attr = (tGATT_ATTR16 *)p_attr->p_next;
|
|
}
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function allocate_attr_in_db
|
|
**
|
|
** Description Allocate a memory space for a new attribute, and link this
|
|
** attribute into the database attribute list.
|
|
**
|
|
**
|
|
** Parameter p_db : database pointer.
|
|
** p_uuid: pointer to attribute UUID
|
|
** service : type of attribute to be added.
|
|
**
|
|
** Returns pointer to the newly allocated attribute.
|
|
**
|
|
*******************************************************************************/
|
|
static void *allocate_attr_in_db(tGATT_SVC_DB *p_db, tBT_UUID *p_uuid, tGATT_PERM perm)
|
|
{
|
|
tGATT_ATTR16 *p_attr16 = NULL, *p_last;
|
|
tGATT_ATTR32 *p_attr32 = NULL;
|
|
tGATT_ATTR128 *p_attr128 = NULL;
|
|
UINT16 len = sizeof(tGATT_ATTR128);
|
|
|
|
if (p_uuid == NULL) {
|
|
GATT_TRACE_ERROR("illegal UUID\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (p_uuid->len == LEN_UUID_16) {
|
|
len = sizeof(tGATT_ATTR16);
|
|
} else if (p_uuid->len == LEN_UUID_32) {
|
|
len = sizeof(tGATT_ATTR32);
|
|
}
|
|
|
|
GATT_TRACE_DEBUG("allocate attr %d bytes\n", len);
|
|
|
|
if (p_db->end_handle <= p_db->next_handle) {
|
|
GATT_TRACE_DEBUG("handle space full. handle_max = %d next_handle = %d\n",
|
|
p_db->end_handle, p_db->next_handle);
|
|
return NULL;
|
|
}
|
|
|
|
if (p_db->mem_free < len) {
|
|
if (!allocate_svc_db_buf(p_db)) {
|
|
GATT_TRACE_ERROR("allocate_attr_in_db failed, no resources\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
memset(p_db->p_free_mem, 0, len);
|
|
p_attr16 = (tGATT_ATTR16 *) p_db->p_free_mem;
|
|
|
|
if (p_uuid->len == LEN_UUID_16 && p_uuid->uu.uuid16 != GATT_ILLEGAL_UUID) {
|
|
p_attr16->uuid_type = GATT_ATTR_UUID_TYPE_16;
|
|
p_attr16->uuid = p_uuid->uu.uuid16;
|
|
} else if (p_uuid->len == LEN_UUID_32) {
|
|
p_attr32 = (tGATT_ATTR32 *) p_db->p_free_mem;
|
|
p_attr32->uuid_type = GATT_ATTR_UUID_TYPE_32;
|
|
p_attr32->uuid = p_uuid->uu.uuid32;
|
|
} else if (p_uuid->len == LEN_UUID_128) {
|
|
p_attr128 = (tGATT_ATTR128 *) p_db->p_free_mem;
|
|
p_attr128->uuid_type = GATT_ATTR_UUID_TYPE_128;
|
|
memcpy(p_attr128->uuid, p_uuid->uu.uuid128, LEN_UUID_128);
|
|
}
|
|
|
|
p_db->p_free_mem += len;
|
|
p_db->mem_free -= len;
|
|
|
|
p_attr16->handle = p_db->next_handle++;
|
|
p_attr16->permission = perm;
|
|
p_attr16->p_next = NULL;
|
|
|
|
/* link the attribute record into the end of DB */
|
|
if (p_db->p_attr_list == NULL) {
|
|
p_db->p_attr_list = p_attr16;
|
|
} else {
|
|
p_last = (tGATT_ATTR16 *)p_db->p_attr_list;
|
|
|
|
while (p_last != NULL && p_last->p_next != NULL) {
|
|
p_last = (tGATT_ATTR16 *)p_last->p_next;
|
|
}
|
|
|
|
p_last->p_next = p_attr16;
|
|
}
|
|
|
|
if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_16) {
|
|
GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid16 = [0x%04x] perm=0x%02x\n",
|
|
p_attr16->handle, p_attr16->uuid, p_attr16->permission);
|
|
} else if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_32) {
|
|
GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid32 = [0x%08x] perm=0x%02x\n",
|
|
p_attr32->handle, p_attr32->uuid, p_attr32->permission);
|
|
} else {
|
|
GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid128 = [0x%02x:0x%02x] perm=0x%02x\n",
|
|
p_attr128->handle, p_attr128->uuid[0], p_attr128->uuid[1],
|
|
p_attr128->permission);
|
|
}
|
|
return (void *)p_attr16;
|
|
}
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function deallocate_attr_in_db
|
|
**
|
|
** Description Free an attribute within the database.
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** p_attr: pointer to the attribute record to be freed.
|
|
**
|
|
** Returns BOOLEAN: success
|
|
**
|
|
*******************************************************************************/
|
|
static BOOLEAN deallocate_attr_in_db(tGATT_SVC_DB *p_db, void *p_attr)
|
|
{
|
|
tGATT_ATTR16 *p_cur, *p_next;
|
|
BOOLEAN found = FALSE;
|
|
|
|
if (p_db->p_attr_list == NULL) {
|
|
return found;
|
|
}
|
|
|
|
p_cur = (tGATT_ATTR16 *) p_db->p_attr_list;
|
|
p_next = (tGATT_ATTR16 *) p_cur->p_next;
|
|
|
|
for (; p_cur != NULL && p_next != NULL;
|
|
p_cur = p_next, p_next = (tGATT_ATTR16 *)p_next->p_next) {
|
|
if (p_next == p_attr) {
|
|
p_cur->p_next = p_next->p_next;
|
|
found = TRUE;
|
|
}
|
|
}
|
|
if (p_cur == p_attr && p_cur == p_db->p_attr_list) {
|
|
p_db->p_attr_list = p_cur->p_next;
|
|
found = TRUE;
|
|
}
|
|
/* else attr not found */
|
|
if ( found) {
|
|
p_db->next_handle --;
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function copy_extra_byte_in_db
|
|
**
|
|
** Description Utility function to allocate extra bytes memory in DB and copy
|
|
** the value from a source place.
|
|
**
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** p_dst: destination data pointer.
|
|
** p_src: source data pointer.
|
|
** len: data length to be copied.
|
|
**
|
|
** Returns None.
|
|
**
|
|
*******************************************************************************/
|
|
static BOOLEAN copy_extra_byte_in_db(tGATT_SVC_DB *p_db, void **p_dst, UINT16 len)
|
|
{
|
|
UINT8 *p = (UINT8 *)*p_dst;
|
|
|
|
if (p_db->mem_free < len) {
|
|
if (!allocate_svc_db_buf(p_db)) {
|
|
GATT_TRACE_ERROR("copy_extra_byte_in_db failed, no resources\n");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
p = p_db->p_free_mem;
|
|
p_db->p_free_mem += len;
|
|
p_db->mem_free -= len;
|
|
memset((void *)p, 0, len);
|
|
*p_dst = (void *)p;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function allocate_svc_db_buf
|
|
**
|
|
** Description Utility function to allocate extra buffer for service database.
|
|
**
|
|
** Returns TRUE if allocation succeed, otherwise FALSE.
|
|
**
|
|
*******************************************************************************/
|
|
static BOOLEAN allocate_svc_db_buf(tGATT_SVC_DB *p_db)
|
|
{
|
|
BT_HDR *p_buf;
|
|
|
|
GATT_TRACE_DEBUG("allocate_svc_db_buf allocating extra buffer");
|
|
|
|
if ((p_buf = (BT_HDR *)GKI_getpoolbuf(GATT_DB_POOL_ID)) == NULL) {
|
|
GATT_TRACE_ERROR("allocate_svc_db_buf failed, no resources");
|
|
return FALSE;
|
|
}
|
|
|
|
memset(p_buf, 0, GKI_get_buf_size(p_buf));
|
|
p_db->p_free_mem = (UINT8 *) p_buf;
|
|
p_db->mem_free = GKI_get_buf_size(p_buf);
|
|
|
|
GKI_enqueue(&p_db->svc_buffer, p_buf);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
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/*******************************************************************************
|
|
**
|
|
** Function gatts_send_app_read_request
|
|
**
|
|
** Description Send application read request callback
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|
**
|
|
** Returns status of operation.
|
|
**
|
|
*******************************************************************************/
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|
static tGATT_STATUS gatts_send_app_read_request(tGATT_TCB *p_tcb, UINT8 op_code,
|
|
UINT16 handle, UINT16 offset, UINT32 trans_id, BOOLEAN need_rsp)
|
|
{
|
|
tGATTS_DATA sr_data;
|
|
UINT8 i_rcb;
|
|
tGATT_SR_REG *p_sreg;
|
|
UINT16 conn_id;
|
|
|
|
i_rcb = gatt_sr_find_i_rcb_by_handle(handle);
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|
p_sreg = &gatt_cb.sr_reg[i_rcb];
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|
conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_sreg->gatt_if);
|
|
|
|
if (trans_id == 0) {
|
|
trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle);
|
|
gatt_sr_update_cback_cnt(p_tcb, p_sreg->gatt_if, TRUE, TRUE);
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|
}
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|
|
|
if (trans_id != 0 ) {
|
|
memset(&sr_data, 0, sizeof(tGATTS_DATA));
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|
|
|
sr_data.read_req.handle = handle;
|
|
sr_data.read_req.is_long = (BOOLEAN)(op_code == GATT_REQ_READ_BLOB);
|
|
sr_data.read_req.offset = offset;
|
|
sr_data.read_req.need_rsp = need_rsp;
|
|
|
|
gatt_sr_send_req_callback(conn_id,
|
|
trans_id, GATTS_REQ_TYPE_READ, &sr_data);
|
|
|
|
if (need_rsp) {
|
|
return (tGATT_STATUS) GATT_PENDING;
|
|
}
|
|
else{
|
|
return (tGATT_STATUS) GATT_STACK_RSP;
|
|
}
|
|
} else {
|
|
return (tGATT_STATUS) GATT_BUSY; /* max pending command, application error */
|
|
}
|
|
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_db_add_service_declaration
|
|
**
|
|
** Description Update a service database service declaration record.
|
|
**
|
|
** Parameter p_db: database pointer.
|
|
** service: UUID of the service.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static BOOLEAN gatts_db_add_service_declaration(tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri)
|
|
{
|
|
tGATT_ATTR16 *p_attr;
|
|
tBT_UUID uuid = {LEN_UUID_16, {0}};
|
|
BOOLEAN rt = FALSE;
|
|
|
|
GATT_TRACE_DEBUG( "add_service_declaration");
|
|
|
|
if (is_pri) {
|
|
uuid.uu.uuid16 = GATT_UUID_PRI_SERVICE;
|
|
} else {
|
|
uuid.uu.uuid16 = GATT_UUID_SEC_SERVICE;
|
|
}
|
|
|
|
/* add service declration record */
|
|
if ((p_attr = (tGATT_ATTR16 *)(allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ))) != NULL) {
|
|
if (copy_extra_byte_in_db (p_db, (void **)&p_attr->p_value, sizeof(tBT_UUID))) {
|
|
if (p_service->len == LEN_UUID_16) {
|
|
p_attr->p_value->uuid.len = LEN_UUID_16;
|
|
p_attr->p_value->uuid.uu.uuid16 = p_service->uu.uuid16;
|
|
} else if (p_service->len == LEN_UUID_32) {
|
|
p_attr->p_value->uuid.len = LEN_UUID_128;
|
|
gatt_convert_uuid32_to_uuid128(p_attr->p_value->uuid.uu.uuid128, p_service->uu.uuid32);
|
|
} else {
|
|
p_attr->p_value->uuid.len = LEN_UUID_128;
|
|
memcpy(p_attr->p_value->uuid.uu.uuid128, p_service->uu.uuid128, LEN_UUID_128);
|
|
}
|
|
rt = TRUE;
|
|
}
|
|
|
|
}
|
|
return rt;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function gatts_add_char_desc_value_check
|
|
**
|
|
** Description parameters validation check for gatts add char/descriptor functions
|
|
**
|
|
** Parameter attr_val: attribute value for char/descriptor.
|
|
** control: control variable for char/descriptor.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static BOOLEAN gatts_add_char_desc_value_check (tGATT_ATTR_VAL *attr_val, tGATTS_ATTR_CONTROL *control)
|
|
{
|
|
if ((control != NULL) && ((control->auto_rsp != GATT_RSP_BY_APP) && (control->auto_rsp != GATT_RSP_BY_STACK))){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, control->auto_rsp should be set to GATT_RSP_BY_APP or GATT_RSP_BY_STACK here\n",\
|
|
__func__, __LINE__);
|
|
return FALSE;
|
|
}
|
|
|
|
if ((control != NULL) && (control->auto_rsp == GATT_RSP_BY_STACK)){
|
|
if (attr_val == NULL){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, for stack respond attribute, attr_val should not be NULL here\n",\
|
|
__func__, __LINE__);
|
|
return FALSE;
|
|
} else if (attr_val->attr_max_len == 0){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d, for stack respond attribute, attribute max length should not be 0\n",\
|
|
__func__, __LINE__);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (attr_val != NULL){
|
|
if (attr_val->attr_len > attr_val->attr_max_len){
|
|
GATT_TRACE_ERROR("Error in %s, line=%d,attribute actual length should not be larger than max length\n",\
|
|
__func__, __LINE__);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE ;
|
|
}
|
|
|
|
#endif /* BLE_INCLUDED == TRUE && GATTS_INCLUDED == TRUE */
|