// start a device initiated bootstrap
static void prv_requestBootstrap(lwm2m_context_t * context,
lwm2m_server_t * bootstrapServer)
{
char query[PRV_QUERY_BUFFER_LENGTH];
int query_length = 0;
int res;
LOG("Entering");
query_length = utils_stringCopy(query, PRV_QUERY_BUFFER_LENGTH, QUERY_STARTER QUERY_NAME);
if (query_length < 0)
{
bootstrapServer->status = STATE_BS_FAILING;
return;
}
res = utils_stringCopy(query + query_length, PRV_QUERY_BUFFER_LENGTH - query_length, context->endpointName);
if (res < 0)
{
bootstrapServer->status = STATE_BS_FAILING;
return;
}
query_length += res;
if (bootstrapServer->sessionH == NULL)
{
bootstrapServer->sessionH = lwm2m_connect_server(bootstrapServer->secObjInstID, context->userData);
}
if (bootstrapServer->sessionH != NULL)
{
lwm2m_transaction_t * transaction = NULL;
LOG("Bootstrap server connection opened");
transaction = transaction_new(bootstrapServer->sessionH, COAP_POST, NULL, NULL, context->nextMID++, 4, NULL);
if (transaction == NULL)
{
bootstrapServer->status = STATE_BS_FAILING;
return;
}
coap_set_header_uri_path(transaction->message, "/"URI_BOOTSTRAP_SEGMENT);
coap_set_header_uri_query(transaction->message, query);
transaction->callback = prv_handleBootstrapReply;
transaction->userData = (void *)bootstrapServer;
context->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(context->transactionList, transaction);
if (transaction_send(context, transaction) == 0)
{
LOG("CI bootstrap requested to BS server");
bootstrapServer->status = STATE_BS_INITIATED;
}
}
else
{
LOG("Connecting bootstrap server failed");
bootstrapServer->status = STATE_BS_FAILED;
}
}
// start a device initiated bootstrap
static void bootstrap_initiating_request(lwm2m_context_t * context,
lwm2m_server_t * bootstrapServer)
{
char query[PRV_QUERY_BUFFER_LENGTH];
int query_length = 0;
int res;
query_length = utils_stringCopy(query, PRV_QUERY_BUFFER_LENGTH, "?ep=");
if (query_length < 0)
{
bootstrapServer->status = STATE_BS_FAILED;
return;
}
res = utils_stringCopy(query + query_length, PRV_QUERY_BUFFER_LENGTH - query_length, context->endpointName);
if (res < 0)
{
bootstrapServer->status = STATE_BS_FAILED;
return;
}
query_length += res;
if (bootstrapServer->sessionH == NULL)
{
bootstrapServer->sessionH = context->connectCallback(bootstrapServer->secObjInstID, context->userData);
}
if (bootstrapServer->sessionH != NULL)
{
lwm2m_transaction_t * transaction = NULL;
LOG("[BOOTSTRAP] Bootstrap session starting...\r\n");
transaction = transaction_new(COAP_TYPE_CON, COAP_POST, NULL, NULL, context->nextMID++, 4, NULL, ENDPOINT_SERVER, (void *)bootstrapServer);
if (transaction == NULL)
{
bootstrapServer->status = STATE_BS_FAILED;
return;
}
coap_set_header_uri_path(transaction->message, "/"URI_BOOTSTRAP_SEGMENT);
coap_set_header_uri_query(transaction->message, query);
transaction->callback = prv_handleBootstrapReply;
transaction->userData = (void *)bootstrapServer;
context->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(context->transactionList, transaction);
if (transaction_send(context, transaction) == 0)
{
LOG("[BOOTSTRAP] CI bootstrap requested to BS server\r\n");
bootstrapServer->status = STATE_BS_INITIATED;
}
}
else
{
LOG("No bootstrap session handler found\r\n");
bootstrapServer->status = STATE_BS_FAILED;
}
}
static int prv_getRegistrationQuery(lwm2m_context_t * contextP,
lwm2m_server_t * server,
char * buffer,
size_t length)
{
int index;
int res;
index = utils_stringCopy(buffer, length, "?ep=");
if (index < 0) return 0;
res = utils_stringCopy(buffer + index, length - index, contextP->endpointName);
if (res < 0) return 0;
index += res;
if (NULL != contextP->msisdn)
{
res = utils_stringCopy(buffer + index, length - index, QUERY_DELIMITER QUERY_SMS);
if (res < 0) return 0;
index += res;
res = utils_stringCopy(buffer + index, length - index, contextP->msisdn);
if (res < 0) return 0;
index += res;
}
switch (server->binding)
{
case BINDING_U:
res = utils_stringCopy(buffer + index, length - index, "&b=U");
break;
case BINDING_UQ:
res = utils_stringCopy(buffer + index, length - index, "&b=UQ");
break;
case BINDING_S:
res = utils_stringCopy(buffer + index, length - index, "&b=S");
break;
case BINDING_SQ:
res = utils_stringCopy(buffer + index, length - index, "&b=SQ");
break;
case BINDING_US:
res = utils_stringCopy(buffer + index, length - index, "&b=US");
break;
case BINDING_UQS:
res = utils_stringCopy(buffer + index, length - index, "&b=UQS");
break;
default:
res = -1;
}
if (res < 0) return 0;
return index + res;
}
// send the registration for a single server
static uint8_t prv_register(lwm2m_context_t * contextP,
lwm2m_server_t * server)
{
char query[200];
int query_length;
uint8_t payload[512];
int payload_length;
lwm2m_transaction_t * transaction;
payload_length = object_getRegisterPayload(contextP, payload, sizeof(payload));
if (payload_length == 0) return COAP_500_INTERNAL_SERVER_ERROR;
query_length = prv_getRegistrationQuery(contextP, server, query, sizeof(query));
if (query_length == 0) return COAP_500_INTERNAL_SERVER_ERROR;
#if !defined(COAP_TCP)
if (0 != server->lifetime)
{
int res;
res = utils_stringCopy(query + query_length, PRV_QUERY_BUFFER_LENGTH - query_length, QUERY_DELIMITER QUERY_LIFETIME);
if (res < 0) return COAP_500_INTERNAL_SERVER_ERROR;
query_length += res;
res = utils_intCopy(query + query_length, PRV_QUERY_BUFFER_LENGTH - query_length, server->lifetime);
if (res < 0) return COAP_500_INTERNAL_SERVER_ERROR;
query_length += res;
}
#endif
if (server->sessionH == NULL)
{
server->sessionH = lwm2m_connect_server(server->secObjInstID, contextP->userData);
}
if (NULL == server->sessionH) return COAP_503_SERVICE_UNAVAILABLE;
transaction = transaction_new(COAP_TYPE_CON, COAP_POST, NULL, NULL, contextP->nextMID++, 4, NULL, ENDPOINT_SERVER, (void *)server);
if (transaction == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
coap_set_header_uri_path(transaction->message, "/"URI_REGISTRATION_SEGMENT);
coap_set_header_uri_query(transaction->message, query);
coap_set_header_content_type(transaction->message, LWM2M_CONTENT_LINK);
coap_set_payload(transaction->message, payload, payload_length);
transaction->callback = prv_handleRegistrationReply;
transaction->userData = (void *) server;
contextP->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(contextP->transactionList, transaction);
if (transaction_send(contextP, transaction) != 0) return COAP_500_INTERNAL_SERVER_ERROR;
server->status = STATE_REG_PENDING;
return COAP_NO_ERROR;
}
static int prv_getLocationString(uint16_t id,
char location[MAX_LOCATION_LENGTH])
{
int index;
int result;
memset(location, 0, MAX_LOCATION_LENGTH);
result = utils_stringCopy(location, MAX_LOCATION_LENGTH, "/"URI_REGISTRATION_SEGMENT"/");
if (result < 0) return 0;
index = result;
result = utils_intCopy(location + index, MAX_LOCATION_LENGTH - index, id);
if (result < 0) return 0;
return index + result;
}
int object_getRegisterPayload(lwm2m_context_t * contextP,
uint8_t * buffer,
size_t bufferLen)
{
size_t index;
int result;
lwm2m_object_t * objectP;
// index can not be greater than bufferLen
index = 0;
result = utils_stringCopy((char *)buffer, bufferLen, REG_START);
if (result < 0) return 0;
index += result;
if ((contextP->altPath != NULL)
&& (contextP->altPath[0] != 0))
{
result = utils_stringCopy((char *)buffer + index, bufferLen - index, contextP->altPath);
}
else
{
result = utils_stringCopy((char *)buffer + index, bufferLen - index, REG_DEFAULT_PATH);
}
if (result < 0) return 0;
index += result;
result = utils_stringCopy((char *)buffer + index, bufferLen - index, REG_LWM2M_RESOURCE_TYPE);
if (result < 0) return 0;
index += result;
for (objectP = contextP->objectList; objectP != NULL; objectP = objectP->next)
{
size_t start;
size_t length;
if (objectP->objID == LWM2M_SECURITY_OBJECT_ID) continue;
start = index;
result = prv_getObjectTemplate(buffer + index, bufferLen - index, objectP->objID);
if (result < 0) return 0;
length = result;
index += length;
if (objectP->instanceList == NULL)
{
index--;
result = utils_stringCopy((char *)buffer + index, bufferLen - index, REG_PATH_END);
if (result < 0) return 0;
index += result;
}
else
{
lwm2m_list_t * targetP;
for (targetP = objectP->instanceList ; targetP != NULL ; targetP = targetP->next)
{
if (bufferLen - index <= length) return 0;
if (index != start + length)
{
memcpy(buffer + index, buffer + start, length);
index += length;
}
result = utils_intCopy((char *)buffer + index, bufferLen - index, targetP->id);
if (result < 0) return 0;
index += result;
result = utils_stringCopy((char *)buffer + index, bufferLen - index, REG_PATH_END);
if (result < 0) return 0;
index += result;
}
}
}
if (index > 0)
{
index = index - 1; // remove trailing ','
}
buffer[index] = 0;
return index;
}