terence zhang
pick up wakaama files from https://github.com/eclipse/wakaama
Diff: core/bootstrap.c
- Revision:
- 0:3f48af28ebcd
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/core/bootstrap.c Wed Apr 19 11:28:00 2017 +0000
@@ -0,0 +1,751 @@
+/*******************************************************************************
+ *
+ * Copyright (c) 2015 Sierra Wireless and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * The Eclipse Distribution License is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ * Pascal Rieux - Please refer to git log
+ * Bosch Software Innovations GmbH - Please refer to git log
+ * David Navarro, Intel Corporation - Please refer to git log
+ *
+ *******************************************************************************/
+
+#include "internals.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#ifdef LWM2M_CLIENT_MODE
+#ifdef LWM2M_BOOTSTRAP
+
+#define PRV_QUERY_BUFFER_LENGTH 200
+
+
+static void prv_handleResponse(lwm2m_server_t * bootstrapServer,
+ coap_packet_t * message)
+{
+ if (COAP_204_CHANGED == message->code)
+ {
+ LOG("Received ACK/2.04, Bootstrap pending, waiting for DEL/PUT from BS server...");
+ bootstrapServer->status = STATE_BS_PENDING;
+ }
+ else
+ {
+ bootstrapServer->status = STATE_BS_FAILING;
+ }
+}
+
+static void prv_handleBootstrapReply(lwm2m_transaction_t * transaction,
+ void * message)
+{
+ lwm2m_server_t * bootstrapServer = (lwm2m_server_t *)transaction->userData;
+ coap_packet_t * coapMessage = (coap_packet_t *)message;
+
+ LOG("Entering");
+
+ if (bootstrapServer->status == STATE_BS_INITIATED)
+ {
+ if (NULL != coapMessage && COAP_TYPE_RST != coapMessage->type)
+ {
+ prv_handleResponse(bootstrapServer, coapMessage);
+ }
+ else
+ {
+ bootstrapServer->status = STATE_BS_FAILING;
+ }
+ }
+}
+
+// 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;
+ }
+}
+
+void bootstrap_step(lwm2m_context_t * contextP,
+ uint32_t currentTime,
+ time_t * timeoutP)
+{
+ lwm2m_server_t * targetP;
+
+ LOG("entering");
+ targetP = contextP->bootstrapServerList;
+ while (targetP != NULL)
+ {
+ LOG_ARG("Initial status: %s", STR_STATUS(targetP->status));
+ switch (targetP->status)
+ {
+ case STATE_DEREGISTERED:
+ targetP->registration = currentTime + targetP->lifetime;
+ targetP->status = STATE_BS_HOLD_OFF;
+ if (*timeoutP > targetP->lifetime)
+ {
+ *timeoutP = targetP->lifetime;
+ }
+ break;
+
+ case STATE_BS_HOLD_OFF:
+ if (targetP->registration <= currentTime)
+ {
+ prv_requestBootstrap(contextP, targetP);
+ }
+ else if (*timeoutP > targetP->registration - currentTime)
+ {
+ *timeoutP = targetP->registration - currentTime;
+ }
+ break;
+
+ case STATE_BS_INITIATED:
+ // waiting
+ break;
+
+ case STATE_BS_PENDING:
+ // waiting
+ break;
+
+ case STATE_BS_FINISHING:
+ if (targetP->sessionH != NULL)
+ {
+ lwm2m_close_connection(targetP->sessionH, contextP->userData);
+ targetP->sessionH = NULL;
+ }
+ targetP->status = STATE_BS_FINISHED;
+ *timeoutP = 0;
+ break;
+
+ case STATE_BS_FAILING:
+ if (targetP->sessionH != NULL)
+ {
+ lwm2m_close_connection(targetP->sessionH, contextP->userData);
+ targetP->sessionH = NULL;
+ }
+ targetP->status = STATE_BS_FAILED;
+ *timeoutP = 0;
+ break;
+
+ default:
+ break;
+ }
+ LOG_ARG("Finalal status: %s", STR_STATUS(targetP->status));
+ targetP = targetP->next;
+ }
+}
+
+coap_status_t bootstrap_handleFinish(lwm2m_context_t * context,
+ void * fromSessionH)
+{
+ lwm2m_server_t * bootstrapServer;
+
+ LOG("Entering");
+ bootstrapServer = utils_findBootstrapServer(context, fromSessionH);
+ if (bootstrapServer != NULL
+ && bootstrapServer->status == STATE_BS_PENDING)
+ {
+ LOG("Bootstrap server status changed to STATE_BS_FINISHING");
+ bootstrapServer->status = STATE_BS_FINISHING;
+ return COAP_204_CHANGED;
+ }
+
+ return COAP_IGNORE;
+}
+
+/*
+ * Reset the bootstrap servers statuses
+ *
+ * TODO: handle LWM2M Servers the client is registered to ?
+ *
+ */
+void bootstrap_start(lwm2m_context_t * contextP)
+{
+ lwm2m_server_t * targetP;
+
+ LOG("Entering");
+ targetP = contextP->bootstrapServerList;
+ while (targetP != NULL)
+ {
+ targetP->status = STATE_DEREGISTERED;
+ if (targetP->sessionH == NULL)
+ {
+ targetP->sessionH = lwm2m_connect_server(targetP->secObjInstID, contextP->userData);
+ }
+ targetP = targetP->next;
+ }
+}
+
+/*
+ * Returns STATE_BS_PENDING if at least one bootstrap is still pending
+ * Returns STATE_BS_FINISHED if at least one bootstrap succeeded and no bootstrap is pending
+ * Returns STATE_BS_FAILED if all bootstrap failed.
+ */
+lwm2m_status_t bootstrap_getStatus(lwm2m_context_t * contextP)
+{
+ lwm2m_server_t * targetP;
+ lwm2m_status_t bs_status;
+
+ LOG("Entering");
+ targetP = contextP->bootstrapServerList;
+ bs_status = STATE_BS_FAILED;
+
+ while (targetP != NULL)
+ {
+ switch (targetP->status)
+ {
+ case STATE_BS_FINISHED:
+ if (bs_status == STATE_BS_FAILED)
+ {
+ bs_status = STATE_BS_FINISHED;
+ }
+ break;
+
+ case STATE_BS_HOLD_OFF:
+ case STATE_BS_INITIATED:
+ case STATE_BS_PENDING:
+ case STATE_BS_FINISHING:
+ bs_status = STATE_BS_PENDING;
+ break;
+
+ default:
+ break;
+ }
+ targetP = targetP->next;
+ }
+
+ LOG_ARG("Returned status: %s", STR_STATUS(bs_status));
+
+ return bs_status;
+}
+
+static coap_status_t prv_checkServerStatus(lwm2m_server_t * serverP)
+{
+ LOG_ARG("Initial status: %s", STR_STATUS(serverP->status));
+
+ switch (serverP->status)
+ {
+ case STATE_BS_HOLD_OFF:
+ serverP->status = STATE_BS_PENDING;
+ LOG_ARG("Status changed to: %s", STR_STATUS(serverP->status));
+ break;
+
+ case STATE_BS_INITIATED:
+ // The ACK was probably lost
+ serverP->status = STATE_BS_PENDING;
+ LOG_ARG("Status changed to: %s", STR_STATUS(serverP->status));
+ break;
+
+ case STATE_DEREGISTERED:
+ // server initiated bootstrap
+ case STATE_BS_PENDING:
+ // do nothing
+ break;
+
+ case STATE_BS_FINISHED:
+ case STATE_BS_FINISHING:
+ case STATE_BS_FAILING:
+ case STATE_BS_FAILED:
+ default:
+ LOG("Returning COAP_IGNORE");
+ return COAP_IGNORE;
+ }
+
+ return COAP_NO_ERROR;
+}
+
+static void prv_tagServer(lwm2m_context_t * contextP,
+ uint16_t id)
+{
+ lwm2m_server_t * targetP;
+
+ targetP = (lwm2m_server_t *)LWM2M_LIST_FIND(contextP->bootstrapServerList, id);
+ if (targetP == NULL)
+ {
+ targetP = (lwm2m_server_t *)LWM2M_LIST_FIND(contextP->serverList, id);
+ }
+ if (targetP != NULL)
+ {
+ targetP->dirty = true;
+ }
+}
+
+static void prv_tagAllServer(lwm2m_context_t * contextP,
+ lwm2m_server_t * serverP)
+{
+ lwm2m_server_t * targetP;
+
+ targetP = contextP->bootstrapServerList;
+ while (targetP != NULL)
+ {
+ if (targetP != serverP)
+ {
+ targetP->dirty = true;
+ }
+ targetP = targetP->next;
+ }
+ targetP = contextP->serverList;
+ while (targetP != NULL)
+ {
+ targetP->dirty = true;
+ targetP = targetP->next;
+ }
+}
+
+coap_status_t bootstrap_handleCommand(lwm2m_context_t * contextP,
+ lwm2m_uri_t * uriP,
+ lwm2m_server_t * serverP,
+ coap_packet_t * message,
+ coap_packet_t * response)
+{
+ coap_status_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;
+}
+
+coap_status_t bootstrap_handleDeleteAll(lwm2m_context_t * contextP,
+ void * fromSessionH)
+{
+ lwm2m_server_t * serverP;
+ coap_status_t result;
+ lwm2m_object_t * objectP;
+
+ LOG("Entering");
+ serverP = utils_findBootstrapServer(contextP, fromSessionH);
+ if (serverP == NULL) return COAP_IGNORE;
+ result = prv_checkServerStatus(serverP);
+ if (result != COAP_NO_ERROR) return result;
+
+ result = COAP_202_DELETED;
+ for (objectP = contextP->objectList; objectP != NULL; objectP = objectP->next)
+ {
+ lwm2m_uri_t uri;
+
+ memset(&uri, 0, sizeof(lwm2m_uri_t));
+ uri.flag = LWM2M_URI_FLAG_OBJECT_ID;
+ uri.objectId = objectP->objID;
+
+ if (objectP->objID == LWM2M_SECURITY_OBJECT_ID)
+ {
+ lwm2m_list_t * instanceP;
+
+ instanceP = objectP->instanceList;
+ while (NULL != instanceP
+ && result == COAP_202_DELETED)
+ {
+ if (instanceP->id == serverP->secObjInstID)
+ {
+ instanceP = instanceP->next;
+ }
+ else
+ {
+ uri.flag = LWM2M_URI_FLAG_OBJECT_ID | LWM2M_URI_FLAG_INSTANCE_ID;
+ uri.instanceId = instanceP->id;
+ result = object_delete(contextP, &uri);
+ instanceP = objectP->instanceList;
+ }
+ }
+ if (result == COAP_202_DELETED)
+ {
+ prv_tagAllServer(contextP, serverP);
+ }
+ }
+ else
+ {
+ result = object_delete(contextP, &uri);
+ if (result == COAP_405_METHOD_NOT_ALLOWED)
+ {
+ // Fake a successful deletion for static objects like the Device object.
+ result = COAP_202_DELETED;
+ }
+ }
+ }
+
+ return result;
+}
+#endif
+#endif
+
+#ifdef LWM2M_BOOTSTRAP_SERVER_MODE
+uint8_t bootstrap_handleRequest(lwm2m_context_t * contextP,
+ lwm2m_uri_t * uriP,
+ void * fromSessionH,
+ coap_packet_t * message,
+ coap_packet_t * response)
+{
+ uint8_t result;
+ char * name;
+
+ LOG_URI(uriP);
+ if (contextP->bootstrapCallback == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
+ if (message->code != COAP_POST) return COAP_400_BAD_REQUEST;
+ if (message->uri_query == NULL) return COAP_400_BAD_REQUEST;
+ if (message->payload != NULL) return COAP_400_BAD_REQUEST;
+
+ if (lwm2m_strncmp((char *)message->uri_query->data, QUERY_NAME, QUERY_NAME_LEN) != 0)
+ {
+ return COAP_400_BAD_REQUEST;
+ }
+
+ if (message->uri_query->len == QUERY_NAME_LEN) return COAP_400_BAD_REQUEST;
+ if (message->uri_query->next != NULL) return COAP_400_BAD_REQUEST;
+
+ name = (char *)lwm2m_malloc(message->uri_query->len - QUERY_NAME_LEN + 1);
+ if (name == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
+
+ memcpy(name, message->uri_query->data + QUERY_NAME_LEN, message->uri_query->len - QUERY_NAME_LEN);
+ name[message->uri_query->len - QUERY_NAME_LEN] = 0;
+
+ result = contextP->bootstrapCallback(fromSessionH, COAP_NO_ERROR, NULL, name, contextP->bootstrapUserData);
+
+ lwm2m_free(name);
+
+ return result;
+}
+
+void lwm2m_set_bootstrap_callback(lwm2m_context_t * contextP,
+ lwm2m_bootstrap_callback_t callback,
+ void * userData)
+{
+ LOG("Entering");
+ contextP->bootstrapCallback = callback;
+ contextP->bootstrapUserData = userData;
+}
+
+static void prv_resultCallback(lwm2m_transaction_t * transacP,
+ void * message)
+{
+ bs_data_t * dataP = (bs_data_t *)transacP->userData;
+ lwm2m_uri_t * uriP;
+
+ if (dataP->isUri == true)
+ {
+ uriP = &dataP->uri;
+ }
+ else
+ {
+ uriP = NULL;
+ }
+
+ if (message == NULL)
+ {
+ dataP->callback(transacP->peerH,
+ COAP_503_SERVICE_UNAVAILABLE,
+ uriP,
+ NULL,
+ dataP->userData);
+ }
+ else
+ {
+ coap_packet_t * packet = (coap_packet_t *)message;
+
+ dataP->callback(transacP->peerH,
+ packet->code,
+ uriP,
+ NULL,
+ dataP->userData);
+ }
+ lwm2m_free(dataP);
+}
+
+int lwm2m_bootstrap_delete(lwm2m_context_t * contextP,
+ void * sessionH,
+ lwm2m_uri_t * uriP)
+{
+ lwm2m_transaction_t * transaction;
+ bs_data_t * dataP;
+
+ LOG_URI(uriP);
+ transaction = transaction_new(sessionH, COAP_DELETE, NULL, uriP, contextP->nextMID++, 4, NULL);
+ if (transaction == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
+
+ dataP = (bs_data_t *)lwm2m_malloc(sizeof(bs_data_t));
+ if (dataP == NULL)
+ {
+ transaction_free(transaction);
+ return COAP_500_INTERNAL_SERVER_ERROR;
+ }
+ if (uriP == NULL)
+ {
+ dataP->isUri = false;
+ }
+ else
+ {
+ dataP->isUri = true;
+ memcpy(&dataP->uri, uriP, sizeof(lwm2m_uri_t));
+ }
+ dataP->callback = contextP->bootstrapCallback;
+ dataP->userData = contextP->bootstrapUserData;
+
+ transaction->callback = prv_resultCallback;
+ transaction->userData = (void *)dataP;
+
+ contextP->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(contextP->transactionList, transaction);
+
+ return transaction_send(contextP, transaction);
+}
+
+int lwm2m_bootstrap_write(lwm2m_context_t * contextP,
+ void * sessionH,
+ lwm2m_uri_t * uriP,
+ lwm2m_media_type_t format,
+ uint8_t * buffer,
+ size_t length)
+{
+ lwm2m_transaction_t * transaction;
+ bs_data_t * dataP;
+
+ LOG_URI(uriP);
+ if (uriP == NULL
+ || buffer == NULL
+ || length == 0)
+ {
+ return COAP_400_BAD_REQUEST;
+ }
+
+ transaction = transaction_new(sessionH, COAP_PUT, NULL, uriP, contextP->nextMID++, 4, NULL);
+ if (transaction == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
+
+ coap_set_header_content_type(transaction->message, format);
+ coap_set_payload(transaction->message, buffer, length);
+
+ dataP = (bs_data_t *)lwm2m_malloc(sizeof(bs_data_t));
+ if (dataP == NULL)
+ {
+ transaction_free(transaction);
+ return COAP_500_INTERNAL_SERVER_ERROR;
+ }
+ dataP->isUri = true;
+ memcpy(&dataP->uri, uriP, sizeof(lwm2m_uri_t));
+ dataP->callback = contextP->bootstrapCallback;
+ dataP->userData = contextP->bootstrapUserData;
+
+ transaction->callback = prv_resultCallback;
+ transaction->userData = (void *)dataP;
+
+ contextP->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(contextP->transactionList, transaction);
+
+ return transaction_send(contextP, transaction);
+}
+
+int lwm2m_bootstrap_finish(lwm2m_context_t * contextP,
+ void * sessionH)
+{
+ lwm2m_transaction_t * transaction;
+ bs_data_t * dataP;
+
+ LOG("Entering");
+ transaction = transaction_new(sessionH, COAP_POST, NULL, NULL, contextP->nextMID++, 4, NULL);
+ if (transaction == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
+
+ coap_set_header_uri_path(transaction->message, "/"URI_BOOTSTRAP_SEGMENT);
+
+ dataP = (bs_data_t *)lwm2m_malloc(sizeof(bs_data_t));
+ if (dataP == NULL)
+ {
+ transaction_free(transaction);
+ return COAP_500_INTERNAL_SERVER_ERROR;
+ }
+ dataP->isUri = false;
+ dataP->callback = contextP->bootstrapCallback;
+ dataP->userData = contextP->bootstrapUserData;
+
+ transaction->callback = prv_resultCallback;
+ transaction->userData = (void *)dataP;
+
+ contextP->transactionList = (lwm2m_transaction_t *)LWM2M_LIST_ADD(contextP->transactionList, transaction);
+
+ return transaction_send(contextP, transaction);
+}
+
+#endif