This branch for debugging DTLS #90, #150, #195, #227

The purpose of this branch is to share work in process. Change sellect() of UDP to poll() Rewrite UDP6 for DTLS6 Known bug: can't reconnect DTLS Signed-off-by: tomoaki <tomoaki@tomy-tech.com>
2025-12-16 00:46:52 +01:00 · 2021-06-11 10:54:20 +09:00
parent 83c30d662f
commit 5fb4312aad
52 changed files with 5101 additions and 1790 deletions
--- a/MQTTSNGateway/GatewayTester/src/LNetworkDtls6.h
+++ b/MQTTSNGateway/GatewayTester/src/LNetworkDtls6.h
@@ -0,0 +1,121 @@
+/**************************************************************************************
+ * Copyright (c) 2021, Tomoaki Yamaguchi
+ *
+ * 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
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Tomoaki Yamaguchi - initial API and implementation and/or initial documentation
+ **************************************************************************************/
+
+#ifndef NETWORKDTLS6_H_
+#define NETWORKDTLS6_H_
+
+#ifdef DTLS6
+
+#include <sys/time.h>
+#include <iostream>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <string>
+#include <arpa/inet.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#include <poll.h>
+
+#define SOCKET_MAXHOSTNAME  200
+#define SOCKET_MAXCONNECTIONS  5
+#define SOCKET_MAXRECV  500
+#define SOCKET_MAXBUFFER_LENGTH 500 // buffer size
+
+#define STAT_UNICAST   1
+#define STAT_MULTICAST 2
+#define STAT_SSL 3
+
+using namespace std;
+
+namespace linuxAsyncClient {
+/*========================================
+ Class LDtls6Port
+ =======================================*/
+class LDtls6Port
+{
+    friend class LNetwork;
+public:
+    LDtls6Port();
+    virtual ~LDtls6Port();
+
+    bool open(LUdp6Config* config);
+
+    int unicast(const uint8_t *buf, uint32_t length);
+    int multicast( const uint8_t* buf, uint32_t length );
+    int recv(uint8_t* buf, uint16_t len, bool nonblock, in6_addr* ipaddress, in_port_t* port );
+    int recv(uint8_t* buf, int flags);
+    bool checkRecvBuf();
+    bool isUnicast();
+    SSL* getSSL(void);
+    int sslConnect(in6_addr ipAddress, uint16_t port);
+private:
+    void close();
+    int recvfrom ( uint8_t* buf, uint16_t len, int flags, in6_addr* ipaddress, in_port_t* port );
+
+    SSL_CTX *_ctx;
+    SSL *_ssl;
+    pollfd _pollfds[2];
+    in_port_t _gPortNo;
+    in_port_t _uPortNo;
+    sockaddr_in6 _gIpAddr;
+    char *_gIpAddrStr;
+    uint32_t _ifIndex;
+    string _interfaceName;
+    uint8_t  _castStat;
+    int _sock;
+    bool   _disconReq;
+
+};
+
+#define NO_ERROR    0
+#define PACKET_EXCEEDS_LENGTH  1
+/*===========================================
+               Class  Network
+ ============================================*/
+class LNetwork: public LDtls6Port
+{
+public:
+    LNetwork();
+    ~LNetwork();
+
+    int  broadcast(const uint8_t* payload, uint16_t payloadLen);
+    int  unicast(const uint8_t* payload, uint16_t payloadLen);
+    void setGwAddress(void);
+    void resetGwAddress(void);
+    bool initialize(LUdp6Config* config);
+    uint8_t*  getMessage(int* len);
+    bool isBroadcastable();
+    int sslConnect(void);
+private:
+    void setSleep();
+    int  readApiFrame(void);
+
+    in6_addr _gwIpAddress;
+    in6_addr _ipAddress;
+    in_port_t _gwPortNo;
+    in_port_t _portNo;
+    int     _returnCode;
+    bool _sleepflg;
+    uint8_t _rxDataBuf[MQTTSN_MAX_PACKET_SIZE + 1];  // defined in MqttsnClientApp.h
+
+};
+
+}    /* end of namespace */
+#endif /* DTLS6 */
+#endif /* NETWORKDTLS6_H_ */