nsdlaccesshelper.cpp

00001 /*
00002  * Copyright (c) 2015 ARM Limited. All rights reserved.
00003  * SPDX-License-Identifier: Apache-2.0
00004  * Licensed under the Apache License, Version 2.0 (the License); you may
00005  * not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
00012  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "include/nsdlaccesshelper.h"
00017 #include "include/m2mnsdlinterface.h"
00018 #include "sn_nsdl_lib.h"
00019 #include "sn_grs.h"
00020 #include <stdlib.h>
00021 
00022 // callback function for NSDL library to call into
00023 uint8_t __nsdl_c_callback(struct nsdl_s *nsdl_handle,
00024                           sn_coap_hdr_s *received_coap_ptr,
00025                           sn_nsdl_addr_s *address,
00026                           sn_nsdl_capab_e nsdl_capab)
00027 {
00028     uint8_t status = 0;
00029     M2MNsdlInterface *interface = (M2MNsdlInterface*)sn_nsdl_get_context(nsdl_handle);
00030     if(interface) {
00031         status = interface->resource_callback(nsdl_handle,
00032                                               received_coap_ptr,
00033                                               address, nsdl_capab);
00034     }
00035     return status;
00036 }
00037 
00038 void* __nsdl_c_memory_alloc(uint16_t size)
00039 {
00040     if(size)
00041         return malloc(size);
00042     else
00043         return 0;
00044 }
00045 
00046 void __nsdl_c_memory_free(void *ptr)
00047 {
00048     if(ptr)
00049         free(ptr);
00050 }
00051 
00052 uint8_t __nsdl_c_send_to_server(struct nsdl_s * nsdl_handle,
00053                                 sn_nsdl_capab_e protocol,
00054                                 uint8_t *data_ptr,
00055                                 uint16_t data_len,
00056                                 sn_nsdl_addr_s *address_ptr)
00057 {
00058     uint8_t status = 0;
00059     M2MNsdlInterface *interface = (M2MNsdlInterface*)sn_nsdl_get_context(nsdl_handle);
00060 #if MBED_CONF_MBED_TRACE_ENABLE
00061     coap_version_e version = COAP_VERSION_UNKNOWN;
00062     sn_coap_hdr_s *header = sn_coap_parser(nsdl_handle->grs->coap, data_len, data_ptr, &version);
00063     sn_nsdl_print_coap_data(header, true);
00064     sn_coap_parser_release_allocated_coap_msg_mem(nsdl_handle->grs->coap, header);
00065 #endif
00066     if(interface) {
00067         status = interface->send_to_server_callback(nsdl_handle,
00068                                                            protocol, data_ptr,
00069                                                            data_len, address_ptr);
00070     }
00071     return status;
00072 }
00073 
00074 uint8_t __nsdl_c_received_from_server(struct nsdl_s * nsdl_handle,
00075                                       sn_coap_hdr_s *coap_header,
00076                                       sn_nsdl_addr_s *address_ptr)
00077 {
00078     uint8_t status = 0;
00079     M2MNsdlInterface *interface = (M2MNsdlInterface*)sn_nsdl_get_context(nsdl_handle);
00080     if(interface) {
00081         status = interface->received_from_server_callback(nsdl_handle,
00082                                                           coap_header,
00083                                                           address_ptr);
00084     }
00085     return status;
00086 }
00087 
00088 uint8_t __nsdl_c_auto_obs_token(struct nsdl_s *nsdl_handle, const char *path, uint8_t *token)
00089 {
00090     M2MNsdlInterface *interface = (M2MNsdlInterface*)sn_nsdl_get_context(nsdl_handle);
00091     if(interface) {
00092         return interface->find_auto_obs_token(path, token);
00093     }
00094     return 0;
00095 }