coap_status_t object_create(lwm2m_context_t * contextP, lwm2m_uri_t * uriP, char * buffer, int length) { lwm2m_object_t * targetP; lwm2m_tlv_t * tlvP = NULL; int size = 0; uint8_t result; if (length == 0 || buffer == 0) { return BAD_REQUEST_4_00; } targetP = prv_find_object(contextP, uriP->objectId); if (NULL == targetP) return NOT_FOUND_4_04; if (NULL == targetP->createFunc) return METHOD_NOT_ALLOWED_4_05; if (LWM2M_URI_IS_SET_INSTANCE(uriP)) { if (NULL != lwm2m_list_find(targetP->instanceList, uriP->instanceId)) { // Instance already exists return COAP_406_NOT_ACCEPTABLE; } } else { uriP->instanceId = lwm2m_list_newId(targetP->instanceList); uriP->flag |= LWM2M_URI_FLAG_INSTANCE_ID; } targetP = prv_find_object(contextP, uriP->objectId); if (NULL == targetP) return NOT_FOUND_4_04; if (NULL == targetP->writeFunc) return METHOD_NOT_ALLOWED_4_05; size = lwm2m_tlv_parse(buffer, length, &tlvP); if (size == 0) return COAP_500_INTERNAL_SERVER_ERROR; result = targetP->createFunc(uriP->instanceId, size, tlvP, targetP); lwm2m_tlv_free(size, tlvP); return result; }
coap_status_t object_write(lwm2m_context_t * contextP, lwm2m_uri_t * uriP, char * buffer, int length) { coap_status_t result; lwm2m_object_t * targetP; lwm2m_tlv_t * tlvP = NULL; int size = 0; targetP = prv_find_object(contextP, uriP->objectId); if (NULL == targetP) return NOT_FOUND_4_04; if (NULL == targetP->writeFunc) return METHOD_NOT_ALLOWED_4_05; if (LWM2M_URI_IS_SET_RESOURCE(uriP)) { size = 1; tlvP = lwm2m_tlv_new(size); if (tlvP == NULL) return COAP_500_INTERNAL_SERVER_ERROR; tlvP->flags = LWM2M_TLV_FLAG_TEXT_FORMAT | LWM2M_TLV_FLAG_STATIC_DATA; tlvP->type = LWM2M_TYPE_RESSOURCE; tlvP->id = uriP->resourceId; tlvP->length = length; tlvP->value = buffer; } else { size = lwm2m_tlv_parse(buffer, length, &tlvP); if (size == 0) return COAP_500_INTERNAL_SERVER_ERROR; } result = targetP->writeFunc(uriP->instanceId, size, tlvP, targetP); lwm2m_tlv_free(size, tlvP); return result; }
int main(int argc, char *argv[]) { lwm2m_tlv_t * tlvP; int size; int length; char * buffer; char buffer1[] = {0x03, 0x0A, 0xC1, 0x01, 0x14, 0x03, 0x0B, 0xC1, 0x01, 0x15, 0x03, 0x0C, 0xC1, 0x01, 0x16}; char buffer2[] = {0xC8, 0x00, 0x14, 0x4F, 0x70, 0x65, 0x6E, 0x20, 0x4D, 0x6F, 0x62, 0x69, 0x6C, 0x65, 0x20, 0x41, 0x6C, 0x6C, 0x69, 0x61, 0x6E, 0x63, 0x65, 0xC8, 0x01, 0x16, 0x4C, 0x69, 0x67, 0x68, 0x74, 0x77 , 0x65, 0x69, 0x67, 0x68, 0x74, 0x20, 0x4D, 0x32, 0x4D, 0x20, 0x43, 0x6C, 0x69, 0x65, 0x6E, 0x74 , 0xC8, 0x02, 0x09, 0x33, 0x34, 0x35, 0x30, 0x30, 0x30, 0x31, 0x32, 0x33, 0xC3, 0x03, 0x31, 0x2E , 0x30, 0x86, 0x06, 0x41, 0x00, 0x01, 0x41, 0x01, 0x05, 0x88, 0x07, 0x08, 0x42, 0x00, 0x0E, 0xD8 , 0x42, 0x01, 0x13, 0x88, 0x87, 0x08, 0x41, 0x00, 0x7D, 0x42, 0x01, 0x03, 0x84, 0xC1, 0x09, 0x64 , 0xC1, 0x0A, 0x0F, 0x83, 0x0B, 0x41, 0x00, 0x00, 0xC4, 0x0D, 0x51, 0x82, 0x42, 0x8F, 0xC6, 0x0E, 0x2B, 0x30, 0x32, 0x3A, 0x30, 0x30, 0xC1, 0x0F, 0x55}; printf("Buffer 1:\n"); decode(buffer1, sizeof(buffer1), 0); printf("\n\nBuffer 1 using lwm2m_tlv_t:\n"); size = lwm2m_tlv_parse(buffer1, sizeof(buffer1), &tlvP); dump_tlv(size, tlvP, 0); length = lwm2m_tlv_serialize(size, tlvP, &buffer); if (length != sizeof(buffer1)) { printf("\n\nSerialize Buffer 1 failed: %d bytes instead of %d\n", length, sizeof(buffer1)); } else if (memcmp(buffer, buffer1, length) != 0) { printf("\n\nSerialize Buffer 1 failed:\n"); prv_output_buffer(buffer, length); printf("\ninstead of:\n"); prv_output_buffer(buffer1, length); } else { printf("\n\nSerialize Buffer 1 OK\n"); } lwm2m_tlv_free(size, tlvP); printf("\n\n============\n\nBuffer 2: \r\r\n"); decode(buffer2, sizeof(buffer2), 0); printf("\n\nBuffer 2 using lwm2m_tlv_t: \r\r\n"); size = lwm2m_tlv_parse(buffer2, sizeof(buffer2), &tlvP); dump_tlv(size, tlvP, 0); length = lwm2m_tlv_serialize(size, tlvP, &buffer); if (length != sizeof(buffer2)) { printf("\n\nSerialize Buffer 2 failed: %d bytes instead of %d\n", length, sizeof(buffer2)); } else if (memcmp(buffer, buffer2, length) != 0) { printf("\n\nSerialize Buffer 2 failed:\n"); prv_output_buffer(buffer, length); printf("\ninstead of:\n"); prv_output_buffer(buffer2, length); } else { printf("\n\nSerialize Buffer 2 OK\n\n"); } lwm2m_tlv_free(size, tlvP); }