static void prv_resultCallback(lwm2m_transaction_t * transacP,
void * message)
{
dm_data_t * dataP = (dm_data_t *)transacP->userData;
if (message == NULL)
{
dataP->callback(dataP->clientID,
&dataP->uri,
COAP_503_SERVICE_UNAVAILABLE,
LWM2M_CONTENT_TEXT, NULL, 0,
dataP->userData);
}
else
{
coap_packet_t * packet = (coap_packet_t *)message;
//if packet is a CREATE response and the instanceId was assigned by the client
if (packet->code == COAP_201_CREATED
&& packet->location_path != NULL)
{
char * locationString = NULL;
int result = 0;
lwm2m_uri_t locationUri;
locationString = coap_get_multi_option_as_string(packet->location_path);
if (locationString == NULL)
{
LOG("Error: coap_get_multi_option_as_string() failed for Location_path option in prv_resultCallback()");
return;
}
result = lwm2m_stringToUri(locationString, strlen(locationString), &locationUri);
if (result == 0)
{
LOG("Error: lwm2m_stringToUri() failed for Location_path option in prv_resultCallback()");
lwm2m_free(locationString);
return;
}
((dm_data_t*)transacP->userData)->uri.instanceId = locationUri.instanceId;
((dm_data_t*)transacP->userData)->uri.flag = locationUri.flag;
lwm2m_free(locationString);
}
dataP->callback(dataP->clientID,
&dataP->uri,
packet->code,
utils_convertMediaType(packet->content_type),
packet->payload,
packet->payload_len,
dataP->userData);
}
lwm2m_free(dataP);
}
uint8_t bootstrap_handleCommand(lwm2m_context_t * contextP,
lwm2m_uri_t * uriP,
lwm2m_server_t * serverP,
coap_packet_t * message,
coap_packet_t * response)
{
uint8_t result;
lwm2m_media_type_t format;
LOG_ARG("Code: %02X", message->code);
LOG_URI(uriP);
format = utils_convertMediaType(message->content_type);
result = prv_checkServerStatus(serverP);
if (result != COAP_NO_ERROR) return result;
switch (message->code)
{
case COAP_PUT:
{
if (LWM2M_URI_IS_SET_INSTANCE(uriP))
{
if (object_isInstanceNew(contextP, uriP->objectId, uriP->instanceId))
{
result = object_create(contextP, uriP, format, message->payload, message->payload_len);
if (COAP_201_CREATED == result)
{
result = COAP_204_CHANGED;
}
}
else
{
result = object_write(contextP, uriP, format, message->payload, message->payload_len);
if (uriP->objectId == LWM2M_SECURITY_OBJECT_ID
&& result == COAP_204_CHANGED)
{
prv_tagServer(contextP, uriP->instanceId);
}
}
}
else
{
lwm2m_data_t * dataP = NULL;
int size = 0;
int i;
if (message->payload_len == 0 || message->payload == 0)
{
result = COAP_400_BAD_REQUEST;
}
else
{
size = lwm2m_data_parse(uriP, message->payload, message->payload_len, format, &dataP);
if (size == 0)
{
result = COAP_500_INTERNAL_SERVER_ERROR;
break;
}
for (i = 0 ; i < size ; i++)
{
if(dataP[i].type == LWM2M_TYPE_OBJECT_INSTANCE)
{
if (object_isInstanceNew(contextP, uriP->objectId, dataP[i].id))
{
result = object_createInstance(contextP, uriP, &dataP[i]);
if (COAP_201_CREATED == result)
{
result = COAP_204_CHANGED;
}
}
else
{
result = object_writeInstance(contextP, uriP, &dataP[i]);
if (uriP->objectId == LWM2M_SECURITY_OBJECT_ID
&& result == COAP_204_CHANGED)
{
prv_tagServer(contextP, dataP[i].id);
}
}
if(result != COAP_204_CHANGED) // Stop object create or write when result is error
{
break;
}
}
else
{
result = COAP_400_BAD_REQUEST;
}
}
lwm2m_data_free(size, dataP);
}
}
}
break;
case COAP_DELETE:
{
if (LWM2M_URI_IS_SET_RESOURCE(uriP))
{
result = COAP_400_BAD_REQUEST;
}
else
{
result = object_delete(contextP, uriP);
if (uriP->objectId == LWM2M_SECURITY_OBJECT_ID
&& result == COAP_202_DELETED)
{
if (LWM2M_URI_IS_SET_INSTANCE(uriP))
{
prv_tagServer(contextP, uriP->instanceId);
}
else
{
prv_tagAllServer(contextP, NULL);
}
}
}
}
break;
case COAP_GET:
case COAP_POST:
default:
result = COAP_400_BAD_REQUEST;
break;
}
if (result == COAP_202_DELETED
|| result == COAP_204_CHANGED)
{
if (serverP->status != STATE_BS_PENDING)
{
serverP->status = STATE_BS_PENDING;
contextP->state = STATE_BOOTSTRAPPING;
}
}
LOG_ARG("Server status: %s", STR_STATUS(serverP->status));
return result;
}
static void prv_resultCallback(lwm2m_context_t * contextP,
lwm2m_transaction_t * transacP,
void * message)
{
dm_data_t * dataP = (dm_data_t *)transacP->userData;
(void)contextP; /* unused */
if (message == NULL)
{
dataP->callback(dataP->clientID,
&dataP->uri,
COAP_503_SERVICE_UNAVAILABLE,
LWM2M_CONTENT_TEXT, NULL, 0,
dataP->userData);
}
else
{
coap_packet_t * packet = (coap_packet_t *)message;
//if packet is a CREATE response and the instanceId was assigned by the client
if (packet->code == COAP_201_CREATED
&& packet->location_path != NULL)
{
char * locationString = NULL;
int result = 0;
lwm2m_uri_t locationUri;
locationString = coap_get_multi_option_as_string(packet->location_path);
if (locationString == NULL)
{
LOG("Error: coap_get_multi_option_as_string() failed for Location_path option in prv_resultCallback()");
return;
}
result = lwm2m_stringToUri(locationString, strlen(locationString), &locationUri);
if (result == 0)
{
LOG("Error: lwm2m_stringToUri() failed for Location_path option in prv_resultCallback()");
lwm2m_free(locationString);
return;
}
if (!LWM2M_URI_IS_SET_OBJECT(&locationUri) ||
!LWM2M_URI_IS_SET_INSTANCE(&locationUri) ||
LWM2M_URI_IS_SET_RESOURCE(&locationUri) ||
locationUri.objectId != ((dm_data_t*)transacP->userData)->uri.objectId)
{
LOG("Error: invalid Location_path option in prv_resultCallback()");
lwm2m_free(locationString);
return;
}
memcpy(&((dm_data_t*)transacP->userData)->uri, &locationUri, sizeof(locationUri));
lwm2m_free(locationString);
}
dataP->callback(dataP->clientID,
&dataP->uri,
packet->code,
utils_convertMediaType(packet->content_type),
packet->payload,
packet->payload_len,
dataP->userData);
}
lwm2m_free(dataP);
}
uint8_t dm_handleRequest(lwm2m_context_t * contextP,
lwm2m_uri_t * uriP,
lwm2m_server_t * serverP,
coap_packet_t * message,
coap_packet_t * response)
{
uint8_t result;
lwm2m_media_type_t format;
LOG_ARG("Code: %02X, server status: %s", message->code, STR_STATUS(serverP->status));
LOG_URI(uriP);
if (IS_OPTION(message, COAP_OPTION_CONTENT_TYPE))
{
format = utils_convertMediaType(message->content_type);
}
else
{
format = LWM2M_CONTENT_TLV;
}
if (uriP->objectId == LWM2M_SECURITY_OBJECT_ID)
{
return COAP_404_NOT_FOUND;
}
if (serverP->status != STATE_REGISTERED
&& serverP->status != STATE_REG_UPDATE_NEEDED
&& serverP->status != STATE_REG_FULL_UPDATE_NEEDED
&& serverP->status != STATE_REG_UPDATE_PENDING)
{
return COAP_IGNORE;
}
// TODO: check ACL
switch (message->code)
{
case COAP_GET:
{
uint8_t * buffer = NULL;
size_t length = 0;
int res;
if (IS_OPTION(message, COAP_OPTION_OBSERVE))
{
lwm2m_data_t * dataP = NULL;
int size = 0;
result = object_readData(contextP, uriP, &size, &dataP);
if (COAP_205_CONTENT == result)
{
result = observe_handleRequest(contextP, uriP, serverP, size, dataP, message, response);
if (COAP_205_CONTENT == result)
{
if (IS_OPTION(message, COAP_OPTION_ACCEPT))
{
format = utils_convertMediaType(message->accept[0]);
}
else
{
format = LWM2M_CONTENT_TLV;
}
res = lwm2m_data_serialize(uriP, size, dataP, &format, &buffer);
if (res < 0)
{
result = COAP_500_INTERNAL_SERVER_ERROR;
}
else
{
length = (size_t)res;
LOG_ARG("Observe Request[/%d/%d/%d]: %.*s\n", uriP->objectId, uriP->instanceId, uriP->resourceId, length, buffer);
}
}
lwm2m_data_free(size, dataP);
}
}
else if (IS_OPTION(message, COAP_OPTION_ACCEPT)
&& message->accept_num == 1
&& message->accept[0] == APPLICATION_LINK_FORMAT)
{
format = LWM2M_CONTENT_LINK;
result = object_discover(contextP, uriP, serverP, &buffer, &length);
}
else
{
if (IS_OPTION(message, COAP_OPTION_ACCEPT))
{
format = utils_convertMediaType(message->accept[0]);
}
result = object_read(contextP, uriP, &format, &buffer, &length);
}
if (COAP_205_CONTENT == result)
{
coap_set_header_content_type(response, format);
coap_set_payload(response, buffer, length);
// lwm2m_handle_packet will free buffer
}
else
{
lwm2m_free(buffer);
}
}
break;
case COAP_POST:
{
if (!LWM2M_URI_IS_SET_INSTANCE(uriP))
{
result = object_create(contextP, uriP, format, message->payload, message->payload_len);
if (result == COAP_201_CREATED)
{
//longest uri is /65535/65535 = 12 + 1 (null) chars
char location_path[13] = "";
//instanceId expected
if ((uriP->flag & LWM2M_URI_FLAG_INSTANCE_ID) == 0)
{
result = COAP_500_INTERNAL_SERVER_ERROR;
break;
}
if (sprintf(location_path, "/%d/%d", uriP->objectId, uriP->instanceId) < 0)
{
result = COAP_500_INTERNAL_SERVER_ERROR;
break;
}
coap_set_header_location_path(response, location_path);
lwm2m_update_registration(contextP, 0, true);
}
}
else if (!LWM2M_URI_IS_SET_RESOURCE(uriP))
{
result = object_write(contextP, uriP, format, message->payload, message->payload_len);
}
else
{
result = object_execute(contextP, uriP, message->payload, message->payload_len);
}
}
break;
case COAP_PUT:
{
if (IS_OPTION(message, COAP_OPTION_URI_QUERY))
{
lwm2m_attributes_t attr;
if (0 != prv_readAttributes(message->uri_query, &attr))
{
result = COAP_400_BAD_REQUEST;
}
else
{
result = observe_setParameters(contextP, uriP, serverP, &attr);
}
}
else if (LWM2M_URI_IS_SET_INSTANCE(uriP))
{
result = object_write(contextP, uriP, format, message->payload, message->payload_len);
}
else
{
result = COAP_400_BAD_REQUEST;
}
}
break;
case COAP_DELETE:
{
if (!LWM2M_URI_IS_SET_INSTANCE(uriP) || LWM2M_URI_IS_SET_RESOURCE(uriP))
{
result = COAP_400_BAD_REQUEST;
}
else
{
result = object_delete(contextP, uriP);
if (result == COAP_202_DELETED)
{
lwm2m_update_registration(contextP, 0, true);
}
}
}
break;
default:
result = COAP_400_BAD_REQUEST;
break;
}
return result;
}
coap_status_t observe_handleRequest(lwm2m_context_t * contextP,
lwm2m_uri_t * uriP,
lwm2m_server_t * serverP,
int size,
lwm2m_data_t * dataP,
coap_packet_t * message,
coap_packet_t * response)
{
lwm2m_watcher_t * watcherP;
uint32_t count;
LOG_ARG("Code: %02X, server status: %s", message->code, STR_STATUS(serverP->status));
LOG_URI(uriP);
coap_get_header_observe(message, &count);
switch (count)
{
case 0:
if (!LWM2M_URI_IS_SET_INSTANCE(uriP) && LWM2M_URI_IS_SET_RESOURCE(uriP)) return COAP_400_BAD_REQUEST;
if (message->token_len == 0) return COAP_400_BAD_REQUEST;
watcherP = prv_getWatcher(contextP, uriP, serverP);
if (watcherP == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
watcherP->tokenLen = message->token_len;
memcpy(watcherP->token, message->token, message->token_len);
watcherP->active = true;
watcherP->lastTime = lwm2m_gettime();
if (IS_OPTION(message, COAP_OPTION_ACCEPT))
{
watcherP->format = utils_convertMediaType(message->accept[0]);
}
else
{
watcherP->format = LWM2M_CONTENT_TLV;
}
if (LWM2M_URI_IS_SET_RESOURCE(uriP))
{
switch (dataP->type)
{
case LWM2M_TYPE_INTEGER:
if (1 != lwm2m_data_decode_int(dataP, &(watcherP->lastValue.asInteger))) return COAP_500_INTERNAL_SERVER_ERROR;
break;
case LWM2M_TYPE_FLOAT:
if (1 != lwm2m_data_decode_float(dataP, &(watcherP->lastValue.asFloat))) return COAP_500_INTERNAL_SERVER_ERROR;
break;
default:
break;
}
}
coap_set_header_observe(response, watcherP->counter++);
return COAP_205_CONTENT;
case 1:
// cancellation
observe_cancel(contextP, LWM2M_MAX_ID, serverP->sessionH);
return COAP_205_CONTENT;
default:
return COAP_400_BAD_REQUEST;
}
}
