Add Tinydtls support

CMakeLists.txt

@@ -18,14 +18,15 @@ option (WITH_LIBCOAP "Enable libcoap CoAP support)" ON)
 option (WITH_ERBIUM "Enable Erbium CoAP support)" OFF)
 option (WITH_GNUTLS "Enable GnuTLS DTLS support" OFF)
 option (WITH_CYASSL "Enable CyaSSL DTLS support" OFF)
+option (WITH_TINYDTLS "Enable TinyDTLS DTLS support" OFF)
 
 if (WITH_ERBIUM)
   message (WARNING "Disabling libcoap support")
   set (WITH_LIBCOAP OFF)
 endif ()
 
-if (WITH_GNUTLS AND WITH_CYASSL)
-  message (FATAL_ERROR "WITH_GNUTLS and WITH_CYASSL are mutually exclusive and cannot be specified together." )
+if (WITH_GNUTLS AND (WITH_CYASSL OR WITH_TINYDTLS))
+  message (FATAL_ERROR "WITH_GNUTLS, WITH_CYASSL and WITH_TINYDTLS are mutually exclusive and cannot be specified together." )
 endif ()
 
 

core/src/bootstrap/lwm2m_bootstrap_psk.h

@@ -0,0 +1,43 @@
+/************************************************************************************************************************
+ Copyright (c) 2016, Imagination Technologies Limited and/or its affiliated group companies.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
+ following conditions are met:
+     1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
+        following disclaimer.
+     2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
+        following disclaimer in the documentation and/or other materials provided with the distribution.
+     3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
+        products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
+ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+************************************************************************************************************************/
+
+
+#ifndef LWM2M_BOOTSTRAP_PSK_H_
+#define LWM2M_BOOTSTRAP_PSK_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+const char * pskIdentity = "oFIrQFrW8EWcZ5u7eGfrkw";
+
+const uint8_t pskKey[] = {
+        0x7C, 0xCD, 0xE1, 0x4A, 0x5C, 0xF3, 0xB7, 0x1C, 0x0C, 0x08, 0xC8, 0xB7, 0xF9, 0xE5
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWM2M_BOOTSTRAP_PSK_H_ */

core/src/bootstrap/lwm2m_bootstrap_server.c

@@ -46,6 +46,7 @@
 #include "lwm2m_object_defs.h"
 #include "bootstrap/lwm2m_bootstrap.h"
 #include "bootstrap/lwm2m_bootstrap_cert.h"
+#include "bootstrap/lwm2m_bootstrap_psk.h"
 
 
 #define DEFAULT_IP_ADDRESS          "0.0.0.0"
@@ -201,6 +202,7 @@ static int Bootstrap_Start(Options * options)
     if (options->Secure)
     {
         coap_SetCertificate(bootsrapCert, sizeof(bootsrapCert), CertificateFormat_PEM);
+        coap_SetPSK(pskIdentity, pskKey, sizeof(pskKey));
     }
 
     Lwm2mContextType * context = Lwm2mCore_Init(coap);

core/src/client/lwm2m_client.c

@@ -55,6 +55,7 @@
 #include "lwm2m_xml_interface.h"
 #include "lwm2m_object_defs.h"
 #include "lwm2m_client_cert.h"
+#include "lwm2m_client_psk.h"
 
 
 #define DEFAULT_COAP_PORT (6000)
@@ -202,6 +203,7 @@ static int Lwm2mClient_Start(Options * options)
     }
 
     coap_SetCertificate(clientCert, sizeof(clientCert), CertificateFormat_PEM);
+    coap_SetPSK(pskIdentity, pskKey, sizeof(pskKey));
 
     // if required read the bootstrap information from a file
     const BootstrapInfo * factoryBootstrapInfo;

core/src/client/lwm2m_client_psk.h

@@ -0,0 +1,43 @@
+/************************************************************************************************************************
+ Copyright (c) 2016, Imagination Technologies Limited and/or its affiliated group companies.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
+ following conditions are met:
+     1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
+        following disclaimer.
+     2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
+        following disclaimer in the documentation and/or other materials provided with the distribution.
+     3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
+        products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
+ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+************************************************************************************************************************/
+
+
+#ifndef LWM2M_CLIENT_PSK_H_
+#define LWM2M_CLIENT_PSK_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+const char * pskIdentity = "oFIrQFrW8EWcZ5u7eGfrkw";
+
+const uint8_t pskKey[] = {
+        0x7C, 0xCD, 0xE1, 0x4A, 0x5C, 0xF3, 0xB7, 0x1C, 0x0C, 0x08, 0xC8, 0xB7, 0xF9, 0xE5
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWM2M_CLIENT_PSK_H_ */

core/src/common/CMakeLists.txt

@@ -32,7 +32,12 @@ if (WITH_CYASSL)
   list (APPEND awa_common_SOURCES dtls_abstraction_cyassl.c)
 endif ()
 
-if (NOT WITH_GNUTLS AND NOT WITH_CYASSL)
+if (WITH_TINYDTLS)
+  list (APPEND awa_common_SOURCES dtls_abstraction_tinydtls.c)
+endif ()
+
+
+if (NOT WITH_GNUTLS AND NOT WITH_CYASSL AND NOT WITH_TINYDTLS)
   list (APPEND awa_common_SOURCES dtls_abstraction_dummy.c)
 endif ()
 
@@ -52,6 +57,11 @@ if (WITH_ERBIUM)
   list (APPEND awa_common_INCLUDE_DIRS ${LIBCOAP_INCLUDE_DIR})
 endif ()
 
+if (WITH_TINYDTLS)
+  list (APPEND awa_common_INCLUDE_DIRS ${TINYDTLS_INCLUDE_DIR})
+endif ()
+
+
 set (awa_common_LIBS
   libxml_static
   libb64_static
@@ -79,6 +89,10 @@ if (WITH_GNUTLS)
   list (APPEND awa_common_LIBS gnutls)
 endif ()
 
+if (WITH_TINYDTLS)
+  list (APPEND awa_common_LIBS tinydtls_static)
+endif ()
+
 if (ENABLE_GCOV)
   set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 --coverage")
   set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --coverage")

core/src/common/coap_abstraction.h

@@ -78,7 +78,7 @@ extern const char * coap_LibraryName;
 CoapInfo * coap_Init(const char * ipAddress, int port, bool secure, int logLevel);
 
 void coap_SetCertificate(const uint8_t * cert, int certLength, CertificateFormat format);
-void coap_SetPSK(const char * identity, uint8_t * key, int keyLength);
+void coap_SetPSK(const char * identity, const uint8_t * key, int keyLength);
 
 int coap_Destroy(void);
 void coap_Process(void);

core/src/common/coap_abstraction_contiki.c

@@ -486,7 +486,7 @@ void coap_SetCertificate(const uint8_t * cert, int certLength, CertificateFormat
 	(void)format;
 }
 
-void coap_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void coap_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
 	(void)identity;
 	(void)key;

core/src/common/coap_abstraction_erbium.c

@@ -116,7 +116,7 @@ void coap_SetCertificate(const uint8_t * cert, int certLength, CertificateFormat
 	NetworkSocket_SetCertificate(networkSocket, cert, certLength, format);
 }
 
-void coap_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void coap_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
 	NetworkSocket_SetPSK(networkSocket, identity, key, keyLength);
 }

core/src/common/coap_abstraction_libcoap.c

@@ -1183,7 +1183,7 @@ void coap_SetCertificate(const uint8_t * cert, int certLength, CertificateFormat
 	(void)format;
 }
 
-void coap_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void coap_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
     (void)identity;
     (void)key;

core/src/common/dtls_abstraction.h

@@ -57,7 +57,7 @@ void DTLS_SetCertificate(const uint8_t * cert, int certLength, CertificateFormat
 
 void DTLS_SetNetworkSendCallback(DTLS_NetworkSendCallback sendCallback);
 
-void DTLS_SetPSK(const char * identity, uint8_t * key, int keyLength);
+void DTLS_SetPSK(const char * identity, const uint8_t * key, int keyLength);
 
 bool DTLS_Decrypt(NetworkAddress * sourceAddress, uint8_t * encrypted, int encryptedLength, uint8_t * decryptBuffer, int decryptBufferLength, int * decryptedLength, void *context);
 

core/src/common/dtls_abstraction_cyassl.c

@@ -65,8 +65,8 @@ int certificateLength = 0;
 CertificateFormat certificateFormat;
 
 const char * pskIdentity = NULL;
-uint8_t * pskKey;
-int pskKeyLength;
+const uint8_t * pskKey = NULL;
+int pskKeyLength = 0;
 
 DTLS_NetworkSendCallback NetworkSend = NULL;
 
@@ -129,7 +129,7 @@ void DTLS_SetNetworkSendCallback(DTLS_NetworkSendCallback sendCallback)
     NetworkSend = sendCallback;
 }
 
-void DTLS_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void DTLS_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
     pskIdentity = identity;
     pskKey = key;

core/src/common/dtls_abstraction_dummy.c

@@ -44,7 +44,7 @@ void DTLS_SetNetworkSendCallback(DTLS_NetworkSendCallback sendCallback)
 {
 }
 
-void DTLS_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void DTLS_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
 }
 

core/src/common/dtls_abstraction_gnutls.c

@@ -132,10 +132,10 @@ void DTLS_SetNetworkSendCallback(DTLS_NetworkSendCallback sendCallback)
     NetworkSend = sendCallback;
 }
 
-void DTLS_SetPSK(const char * identity, uint8_t * key, int keyLength)
+void DTLS_SetPSK(const char * identity, const uint8_t * key, int keyLength)
 {
     pskIdentity = identity;
-    pskKey.data = key;
+    pskKey.data = (unsigned char *)key;
     pskKey.size = keyLength;
 }