Merge pull request #2 from iot-lab/pr/er-coap-dtls/tinydtls_and_er_coap_integration

Pr/er coap dtls/tinydtls and er coap integration

.gitmodules

@@ -4,13 +4,15 @@
 [submodule "tools/cc2538-bsl"]
 	path = tools/cc2538-bsl
 	url = https://github.com/JelmerT/cc2538-bsl.git
-[submodule "cpu/cc26xx-cc13xx/lib/cc26xxware"]
-	path = cpu/cc26xx-cc13xx/lib/cc26xxware
-	url = https://github.com/g-oikonomou/cc26xxware.git
 [submodule "cpu/cc26xx-cc13xx/lib/cc13xxware"]
-	path = cpu/cc26xx-c../.gitmodulesc13xx/lib/cc13xxware
-	url = https://github.com/g-oikonomou/cc13xxware.git
+	path = cpu/cc26xx-cc13xx/lib/cc13xxware
+	url = https://github.com/contiki-os/cc13xxware.git
 [submodule "platform/stm32nucleo-spirit1/stm32cube-lib"]
 	path = platform/stm32nucleo-spirit1/stm32cube-lib
 	url = https://github.com/STclab/stm32nucleo-spirit1-lib
-
+[submodule "tools/sensniff"]
+	path = tools/sensniff
+	url = https://github.com/g-oikonomou/sensniff.git
+[submodule "apps/tinydtls"]
+	path = apps/tinydtls
+	url = https://github.com/iot-lab/armour-tinydtls.git

.travis.yml

@@ -1,3 +1,7 @@
+# Workaround for the issue found in the stable image promoted on Dec 1, 2016.
+# See https://github.com/travis-ci/travis-ci/issues/6928#issuecomment-264227708
+group: deprecated
+
 notifications:
   email: false
 language: c #NOTE: this will set CC=gcc which might cause trouble
@@ -10,7 +14,7 @@ before_script:
 
   ## Install doxygen
   - if [ ${BUILD_CATEGORY:-0} = doxygen ] ; then
-      sudo add-apt-repository ppa:libreoffice/libreoffice-4-4 -y && sudo apt-get -qq update &&
+      sudo add-apt-repository ppa:libreoffice/ppa -y && sudo apt-get -qq update &&
       sudo apt-get --no-install-suggests --no-install-recommends -qq install doxygen  &&
       doxygen --version ;
     fi
@@ -81,7 +85,7 @@ before_script:
   - if [ ${BUILD_ARCH:-0} = jn516x ] ; then
       $WGET http://simonduq.github.io/resources/ba-elf-gcc-4.7.4-part1.tar.bz2 &&
       $WGET http://simonduq.github.io/resources/ba-elf-gcc-4.7.4-part2.tar.bz2 &&
-      $WGET http://simonduq.github.io/resources/jn516x-sdk-4163.tar.bz2 &&
+      $WGET http://simonduq.github.io/resources/jn516x-sdk-4163-1416.tar.bz2 &&
       mkdir /tmp/jn516x-sdk /tmp/ba-elf-gcc &&
       tar xjf jn516x-sdk-*.tar.bz2 -C /tmp/jn516x-sdk &&
       tar xjf ba-elf-gcc-*part1.tar.bz2 -C /tmp/ba-elf-gcc &&
@@ -158,3 +162,5 @@ env:
   - BUILD_TYPE='slip-radio' MAKE_TARGETS='cooja'
   - BUILD_TYPE='llsec' MAKE_TARGETS='cooja'
   - BUILD_TYPE='compile-avr' BUILD_CATEGORY='compile' BUILD_ARCH='avr-rss2'
+  - BUILD_TYPE='ieee802154'
+  - BUILD_TYPE='tsch'

LICENSE

@@ -1,3 +1,37 @@
+A note on Licensing (2017-03-17):
+Github has recently (2017-03-01) changed their license terms:
+https://help.github.com/articles/github-terms-of-service/
+There were comments that this may violate some GPL and creative commons
+licenses:
+http://joeyh.name/blog/entry/removing_everything_from_github/
+https://www.mirbsd.org/permalinks/wlog-10_e20170301-tg.htm
+But also voices that don't see a problem:
+https://www.earth.li/~noodles/blog/2017/03/github-tos-change.html
+If your're german-speaking you may also want to read the two Heise
+articles:
+https://www.heise.de/developer/meldung/GitHub-eckt-mit-neuen-Nutzungsbedingungen-an-3647980.html
+https://www.heise.de/developer/meldung/FSF-aeussert-sich-zu-den-GitHub-Nutzungsbedingungen-3657040.html
+
+We trust that the problematic part in section D.5:
+"If you set your pages and repositories to be viewed publicly, you grant
+each User of GitHub a nonexclusive, worldwide license to access your
+Content through the GitHub Service, and to use, display and perform your
+Content, and to reproduce your Content solely on GitHub as permitted
+through GitHub's functionality." that the part "solely on GitHub as
+permitted through GitHub's functionality" also applies to "display and
+perform your Content". If the latter part of the sentence would stand
+alone it could be interpreted that we would grant *everybody*
+essentially an unlimited license (which we cannot because the authors
+from whom we forked applied other licenses). This interpretation is
+further supported by the fact that Github writes "You may grant further
+rights if you adopt a license." that in fact the statements above only
+apply to the rendering on Github.
+
+Note that in the following we have two licenses, the 3-clause BSD and
+the LGPL license in short:
+- Contiki OS (and our modification to it) are 3-clause BSD
+- Our Arduino compatibility Layer on top of Contiki OS is LGPL
+
 Contiki is licensed under the 3-clause BSD license. This license gives
 everyone the right to use and distribute the code, either in binary or
 source code format, as long as the copyright license is retained in
@@ -36,3 +70,463 @@ of license. The license text is:
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
 
+Arduino-compatibility layer if not otherwise noted is under the
+following license:
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
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+
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+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+

Makefile.include

@@ -304,6 +304,25 @@ endif
 %.flashprof: %.$(TARGET)
 	$(NM) -S -td --size-sort $< | grep -i " [t] " | cut -d' ' -f2,4
 
+viewconf:
+	@echo "----------------- Make variables: --------------"
+	@echo "##### \"TARGET\": ________________________________ $(TARGET)"
+	@echo "##### \"BOARD\": _________________________________ $(BOARD)"
+	@echo "##### \"MAKE_MAC\": ______________________________ $(MAKE_MAC)"
+	@echo "##### \"MAKE_NET\": ______________________________ $(MAKE_NET)"
+	@echo "##### \"MAKE_ROUTING\": __________________________ $(MAKE_ROUTING)"
+ifdef MAKE_COAP_DTLS_KEYSTORE
+	@echo "##### \"MAKE_COAP_DTLS_KEYSTORE\": _______________ $(MAKE_COAP_DTLS_KEYSTORE)"
+endif
+	@echo "----------------- C variables: -----------------"
+	$(Q)$(CC) $(CFLAGS) -E $(CONTIKI)/tools/viewconf.c | grep \#\#\#\#\#
+	@echo "------------------------------------------------"
+	@echo "'==' Means the flag is set to a given a value"
+	@echo "'->' Means the flag is unset, but will default to a given value"
+	@echo "'><' Means the flag is unset and has no default value"
+	@echo "To view more Make variables, edit $(CONTIKI)/Makefile.include, rule 'viewconf'"
+	@echo "To view more C variables, edit $(CONTIKI)/tools/viewconf.c"
+	
 # Don't treat %.$(TARGET) as an intermediate file because it is
 # in fact the primary target.
 .PRECIOUS: %.$(TARGET)

README.md

@@ -1,8 +1,6 @@
 The Contiki Operating System
 ============================
 
-[![Build Status](https://travis-ci.org/contiki-os/contiki.svg?branch=master)](https://travis-ci.org/contiki-os/contiki/branches)
-
 Contiki is an open source operating system that runs on tiny low-power
 microcontrollers and makes it possible to develop applications that
 make efficient use of the hardware while providing standardized
@@ -17,3 +15,12 @@ and so on.
 For more information, see the Contiki website:
 
 [http://contiki-os.org](http://contiki-os.org)
+
+This fork of the Contiki Operating System adds support for our Merkur
+Board, adds a lot of examples (with different hardware) and puts an
+Arduino compatibility layer on top of Contiki-OS that allows Arduino
+Sketches -- and a lot of drivers for Arduino compatible hardware -- to
+run under Contiki-OS.
+
+For the licensing terms (also in the light of recent debates of Github
+changed Terms of Service on 2017-03-01) see the file LICENSE.

apps/arduino/arduino-process.c

@@ -49,37 +49,77 @@
  *
  */
 
+#include <stdlib.h>
+#include <string.h>
 #include "arduino-process.h"
 #include "hw_timer.h"
 #include "adc.h"
 #include "hw-arduino.h"
+#include "contiki.h"
+#include "project-conf.h"
+
+
+#define DEBUG 0
+#if DEBUG
+#include <stdio.h>
+#define PRINTF(...) printf(__VA_ARGS__)
+#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
+#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", (lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3], (lladdr)->addr[4], (lladdr)->addr[5])
+#else
+#define PRINTF(...)
+#define PRINT6ADDR(addr)
+#define PRINTLLADDR(addr)
+#endif
+
 
 extern volatile uint8_t mcusleepcycle;
-volatile uint8_t mcusleepcycleval; 
+#if PLATFORM_HAS_BUTTON
+#include "rest-engine.h"
+#include "dev/button-sensor.h"
+extern resource_t res_event, res_separate;
+#endif /* PLATFORM_HAS_BUTTON */
+
+volatile uint8_t mcusleepcycleval;
+/* 0 dont sleep; 1 sleep */
+uint8_t mcusleep;
 
 /*-------------- enabled sleep mode ----------------------------------------*/
 void
 mcu_sleep_init(void)
 {
-	mcusleepcycleval=mcusleepcycle; 
+	mcusleepcycleval=mcusleepcycle;
+    mcu_sleep_disable(); // if a shell is active we can type 
+}
+void
+mcu_sleep_disable(void)
+{
+	mcusleep=2;
+    mcu_sleep_off();
+}
+void
+mcu_sleep_enable(void)
+{
+	mcusleep=0;
 }
 void
 mcu_sleep_on(void)
 {
-	mcusleepcycle= mcusleepcycleval;
+	if(mcusleep == 0){
+		mcusleepcycle= mcusleepcycleval;
+	}
 }
 /*--------------- disable sleep mode ---------------------------------------*/
 void
 mcu_sleep_off(void)
 {
-	mcusleepcycle=0;
+		mcusleepcycle=0;
 }
 /*---------------- set duty cycle value ------------------------------------*/
 void
 mcu_sleep_set(uint8_t value)
 {
 	mcusleepcycleval= value;
-	mcusleepcycle = mcusleepcycleval;
+//	mcusleepcycle = mcusleepcycleval;
 }
 
 PROCESS(arduino_sketch, "Arduino Sketch Wrapper");
@@ -87,28 +127,54 @@ PROCESS(arduino_sketch, "Arduino Sketch Wrapper");
 #ifndef LOOP_INTERVAL
 #define LOOP_INTERVAL		(1 * CLOCK_SECOND)
 #endif
+#define START_MCUSLEEP		(10 * CLOCK_SECOND)
 
 PROCESS_THREAD(arduino_sketch, ev, data)
 {
   static struct etimer loop_periodic_timer;
-  
+  static struct etimer start_mcusleep_timer;
+
   PROCESS_BEGIN();
   adc_init ();
   mcu_sleep_init ();
   setup ();
   /* Define application-specific events here. */
   etimer_set(&loop_periodic_timer, LOOP_INTERVAL);
+  etimer_set(&start_mcusleep_timer, START_MCUSLEEP);
+
   while (1) {
 	PROCESS_WAIT_EVENT();
-	if(etimer_expired(&loop_periodic_timer)) {
-        loop ();		
-        etimer_reset(&loop_periodic_timer);
+#if PLATFORM_HAS_BUTTON
+    if(ev == sensors_event && data == &button_sensor) {
+      mcu_sleep_off();
+      PRINTF("*******BUTTON*******\n");
+      button ();
+      mcu_sleep_on();
+    }
+#endif /* PLATFORM_HAS_BUTTON */
+    if(etimer_expired(&start_mcusleep_timer)) {
+      PRINTF("mcusleep_timer %d\n",mcusleep);
+      if(mcusleep == 1){
+        PRINTF("mcu sleep on\n");
+        mcu_sleep_enable();
+        mcu_sleep_on();
+      }
+      if (mcusleep > 0) {
+		mcusleep--;
+      }
+      etimer_reset(&start_mcusleep_timer);
+    }
+
+    if(etimer_expired(&loop_periodic_timer)) {
+      mcu_sleep_off();
+      loop ();
+      mcu_sleep_on();
+      etimer_reset(&loop_periodic_timer);
     }
   }
   PROCESS_END();
 }
 
-
 /*
  * VI settings, see coding style
  * ex:ts=8:et:sw=2

apps/arduino/arduino-process.h

@@ -52,8 +52,12 @@
 #include "contiki.h"
 
 /*--------------- enable sleep mode ---------------------------------------*/
-void mcu_sleep_on(void);
+void mcu_sleep_enable(void);
 /*--------------- disable sleep mode ---------------------------------------*/
+void mcu_sleep_disable(void);
+/*--------------- sleep mode on---------------------------------------*/
+void mcu_sleep_on(void);
+/*--------------- sleep mode off---------------------------------------*/
 void mcu_sleep_off(void);
 /*---------------- set sleep value ------------------------------------*/
 void mcu_sleep_set(uint8_t value);
@@ -61,6 +65,7 @@ void mcu_sleep_set(uint8_t value);
 extern void loop         (void);
 extern void setup        (void);
 extern void arduino_init (void);
+extern void button       (void);
 
 extern struct process arduino_sketch;
 

apps/er-coap/Makefile.er-coap

@@ -4,3 +4,18 @@ er-coap_src = er-coap.c er-coap-engine.c er-coap-transactions.c      \
 
 # Erbium will implement the REST Engine
 CFLAGS += -DREST=coap_rest_implementation
+
+ifeq ($(WITH_DTLS_COAP),1)
+er-coap_src += er-coap-dtls.c
+
+# Load tinydtls
+APPS += tinydtls
+$(CONTIKI)/apps/tinydtls/Makefile.tinydtls:
+	@echo "    You should run 'git submodule update --init' to clone 'app/tinydtls'"
+	@exit 1
+include $(CONTIKI)/apps/tinydtls/Makefile.tinydtls
+PROJECTDIRS+=$(CONTIKI)/apps/tinydtls/aes $(CONTIKI)/apps/tinydtls/sha2 $(CONTIKI)/apps/tinydtls/ecc
+
+else
+er-coap_src += er-coap-udp.c
+endif

apps/er-coap/er-coap-communication.h

@@ -0,0 +1,15 @@
+#ifndef _ER_COAP_COMMUNICATION_H_
+#define _ER_COAP_COMMUNICATION_H_
+
+#include "contiki.h"
+
+void
+coap_init_communication_layer(uint16_t port);
+
+void
+coap_send_message(uip_ipaddr_t *addr, uint16_t port, uint8_t *data, uint16_t length);
+
+void
+coap_handle_receive(void);
+
+#endif

apps/er-coap/er-coap-constants.h

@@ -94,6 +94,7 @@ typedef enum {
   NOT_FOUND_4_04 = 132,         /* NOT_FOUND */
   METHOD_NOT_ALLOWED_4_05 = 133,        /* METHOD_NOT_ALLOWED */
   NOT_ACCEPTABLE_4_06 = 134,    /* NOT_ACCEPTABLE */
+  REQUEST_ENTITY_INCOMPLETE_4_08 = 136,  /* REQUEST_ENTITY_INCOMPLETE */
   PRECONDITION_FAILED_4_12 = 140,       /* BAD_REQUEST */
   REQUEST_ENTITY_TOO_LARGE_4_13 = 141,  /* REQUEST_ENTITY_TOO_LARGE */
   UNSUPPORTED_MEDIA_TYPE_4_15 = 143,    /* UNSUPPORTED_MEDIA_TYPE */

apps/er-coap/er-coap-dtls.c

@@ -0,0 +1,161 @@
+#include "contiki.h"
+#include "contiki-net.h"
+#include "er-coap.h"
+#include "er-coap-engine.h"
+
+#include "dtls.h"
+
+#include <string.h>
+
+#define DEBUG DEBUG_NONE
+#include "dtls_debug.h"
+
+/*---------------------------------------------------------------------------*/
+
+/*---------------------------------------------------------------------------*/
+
+static struct dtls_context_t *dtls_ctx = NULL;
+
+static dtls_handler_t coap_dtls_callback = {
+  .write = coap_dtls_send_to_peer,
+  .read = coap_dtls_read_from_peer,
+  .event = NULL,
+#ifdef DTLS_PSK
+  .get_psk_info = coap_dtls_get_psk_info,
+#endif
+#ifdef DTLS_ECC
+  .get_ecdsa_key = NULL,
+  .verify_ecdsa_key = NULL,
+#endif
+};
+
+/*-----------------------------------------------------------------------------------*/
+void
+coap_init_communication_layer(uint16_t port)
+{
+  struct uip_udp_conn *udp_conn = NULL;
+
+  dtls_init();
+  dtls_set_log_level(DTLS_LOG_DEBUG);
+
+  udp_conn = udp_new(NULL, 0, NULL);
+  udp_bind(udp_conn, port);
+
+  dtls_ctx = dtls_new_context(udp_conn);
+  if(dtls_ctx) {
+    dtls_set_handler(dtls_ctx, &COAP_DTLS_CALLBACK);
+  }
+  /* new connection with remote host */
+  printf("COAP-DTLS listening on port %u\n", uip_ntohs(udp_conn->lport));
+}
+/*-----------------------------------------------------------------------------------*/
+void
+coap_send_message(uip_ipaddr_t *addr, uint16_t port,
+                  uint8_t *data, uint16_t length)
+{
+  session_t session;
+
+  dtls_session_init(&session);
+  uip_ipaddr_copy(&session.addr, addr);
+  session.port = port;
+
+  dtls_write(dtls_ctx, &session, data, length);
+}
+/*-----------------------------------------------------------------------------------*/
+void
+coap_handle_receive()
+{
+  session_t session;
+
+  if(uip_newdata()) {
+    dtls_session_init(&session);
+    uip_ipaddr_copy(&session.addr, &UIP_IP_BUF->srcipaddr);
+    session.port = UIP_UDP_BUF->srcport;
+
+    dtls_handle_message(dtls_ctx, &session, uip_appdata, uip_datalen());
+  }
+}
+/* DTLS Specific functions */
+/*-----------------------------------------------------------------------------------*/
+#ifdef DTLS_PSK
+/* This function is the "key store" for tinyDTLS. It is called to
+ * retrieve a key for the given identiy within this particular
+ * session. */
+int
+coap_dtls_get_psk_info(struct dtls_context_t *ctx, const session_t *session,
+                       dtls_credentials_type_t type,
+                       const unsigned char *id, size_t id_len,
+                       unsigned char *result, size_t result_length)
+{
+
+  struct keymap_t {
+    unsigned char *id;
+    size_t id_length;
+    unsigned char *key;
+    size_t key_length;
+  } psk[1] = {
+    { (unsigned char *)DTLS_IDENTITY, DTLS_IDENTITY_LENGTH, (unsigned char *)DTLS_PSK_KEY_VALUE, DTLS_PSK_KEY_VALUE_LENGTH },
+  };
+  if(type == DTLS_PSK_IDENTITY) {
+    if(id_len) {
+      dtls_debug("got psk_identity_hint: '%.*s'\n", id_len, id);
+    }
+
+    if(result_length < psk[0].id_length) {
+      dtls_warn("cannot set psk_identity -- buffer too small\n");
+      return dtls_alert_fatal_create(DTLS_ALERT_INTERNAL_ERROR);
+    }
+
+    memcpy(result, psk[0].id, psk[0].id_length);
+    return psk[0].id_length;
+  } else if(type == DTLS_PSK_KEY) {
+    if(id) {
+      int i;
+      for(i = 0; i < sizeof(psk) / sizeof(struct keymap_t); i++) {
+        if(id_len == psk[i].id_length && memcmp(id, psk[i].id, id_len) == 0) {
+          if(result_length < psk[i].key_length) {
+            dtls_warn("buffer too small for PSK");
+            return dtls_alert_fatal_create(DTLS_ALERT_INTERNAL_ERROR);
+          }
+
+          memcpy(result, psk[i].key, psk[i].key_length);
+          return psk[i].key_length;
+        }
+      }
+    }
+  } else {
+    return 0;
+  }
+
+  return dtls_alert_fatal_create(DTLS_ALERT_DECRYPT_ERROR);
+}
+#endif
+/*-----------------------------------------------------------------------------------*/
+int
+coap_dtls_send_to_peer(struct dtls_context_t *ctx,
+                       session_t *session, uint8 *data, size_t len)
+{
+
+  struct uip_udp_conn *conn = (struct uip_udp_conn *)dtls_get_app_data(ctx);
+
+  uip_ipaddr_copy(&conn->ripaddr, &session->addr);
+  conn->rport = session->port;
+
+  uip_udp_packet_send(conn, data, len);
+
+  /* Restore server connection to allow data from any node */
+  memset(&conn->ripaddr, 0, sizeof(conn->ripaddr));
+  memset(&conn->rport, 0, sizeof(conn->rport));
+
+  return len;
+}
+/*-----------------------------------------------------------------------------------*/
+int
+coap_dtls_read_from_peer(struct dtls_context_t *ctx,
+                         session_t *session, uint8 *data, size_t len)
+{
+  uip_len = len;
+  memmove(uip_appdata, data, len);
+  coap_receive(ctx);
+  return 0;
+}

apps/er-coap/er-coap-dtls.h

@@ -0,0 +1,47 @@
+#ifndef COAP_DTLS_H_
+#define COAP_DTLS_H_
+
+/* Internal configuration of tinydtls for er-coap-dtls */
+
+#if defined DTLS_CONF_IDENTITY && defined DTLS_CONF_IDENTITY_LENGTH
+#define DTLS_IDENTITY DTLS_CONF_IDENTITY
+#define DTLS_IDENTITY_LENGTH DTLS_CONF_IDENTITY_LENGTH
+#else
+#define DTLS_IDENTITY "Client_identity"
+#define DTLS_IDENTITY_LENGTH 15
+#endif
+
+#if defined DTLS_CONF_PSK_KEY && defined DTLS_CONF_PSK_KEY_LENGTH
+#define DTLS_PSK_KEY_VALUE DTLS_CONF_PSK_KEY
+#define DTLS_PSK_KEY_VALUE_LENGTH DTLS_CONF_PSK_KEY_LENGTH
+#else
+#warning "DTLS: Using default secret key !"
+#define DTLS_PSK_KEY_VALUE "secretPSK"
+#define DTLS_PSK_KEY_VALUE_LENGTH 9
+#endif
+
+/* Structure that hold tinydtls callbacks, has type 'dtls_handler_t'. */
+#ifndef COAP_DTLS_CALLBACK
+#ifdef COAP_DTLS_CONF_CALLBACK
+#define COAP_DTLS_CALLBACK COAP_DTLS_CONF_CALLBACK
+#else /* COAP_DTLS_CONF_CALLBACK */
+#define COAP_DTLS_CALLBACK coap_dtls_callback
+#endif /* COAP_DTLS_CALLBACK */
+
+/* Send 'data' to peer defined by session */
+int coap_dtls_send_to_peer(struct dtls_context_t *ctx,
+                           session_t *session, uint8 *data, size_t len);
+
+/* Read 'data' from peer */
+int coap_dtls_read_from_peer(struct dtls_context_t *ctx,
+                             session_t *session, uint8 *data, size_t len);
+#ifdef DTLS_PSK
+/* Retrieve the key for given identity withing this session */
+int coap_dtls_get_psk_info(struct dtls_context_t *ctx,
+                           const session_t *session,
+                           dtls_credentials_type_t type,
+                           const unsigned char *id, size_t id_len,
+                           unsigned char *result, size_t result_length);
+#endif
+
+#endif /* COAP_DTLS_H_ */

apps/er-coap/er-coap-engine.c

@@ -41,6 +41,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include "er-coap-engine.h"
+#include "er-coap-communication.h"
 
 #define DEBUG 0
 #if DEBUG
@@ -64,8 +65,8 @@ static service_callback_t service_cbk = NULL;
 /*---------------------------------------------------------------------------*/
 /*- Internal API ------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
-static int
-coap_receive(void)
+int
+coap_receive()
 {
   erbium_status_code = NO_ERROR;
 
@@ -256,12 +257,12 @@ coap_receive(void)
         transaction = NULL;
 
 #if COAP_OBSERVE_CLIENT
-	/* if observe notification */
+        /* if observe notification */
         if((message->type == COAP_TYPE_CON || message->type == COAP_TYPE_NON)
-              && IS_OPTION(message, COAP_OPTION_OBSERVE)) {
+           && IS_OPTION(message, COAP_OPTION_OBSERVE)) {
           PRINTF("Observe [%u]\n", message->observe);
           coap_handle_notification(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport,
-              message);
+                                   message);
         }
 #endif /* COAP_OBSERVE_CLIENT */
       } /* request or response */
@@ -346,7 +347,7 @@ PROCESS_THREAD(coap_engine, ev, data)
     PROCESS_YIELD();
 
     if(ev == tcpip_event) {
-      coap_receive();
+      coap_handle_receive();
     } else if(ev == PROCESS_EVENT_TIMER) {
       /* retransmissions are handled here */
       coap_check_transactions();
@@ -482,6 +483,7 @@ const struct rest_implementation coap_rest_implementation = {
     NOT_FOUND_4_04,
     METHOD_NOT_ALLOWED_4_05,
     NOT_ACCEPTABLE_4_06,
+    REQUEST_ENTITY_INCOMPLETE_4_08,
     REQUEST_ENTITY_TOO_LARGE_4_13,
     UNSUPPORTED_MEDIA_TYPE_4_15,
     INTERNAL_SERVER_ERROR_5_00,

apps/er-coap/er-coap-engine.h

@@ -52,6 +52,7 @@ typedef coap_packet_t rest_request_t;
 typedef coap_packet_t rest_response_t;
 
 void coap_init_engine(void);
+int coap_receive();
 
 /*---------------------------------------------------------------------------*/
 /*- Client Part -------------------------------------------------------------*/

apps/er-coap/er-coap-observe-client.h

@@ -107,7 +107,7 @@ int coap_obs_remove_observee_by_token(uip_ipaddr_t *addr, uint16_t port,
 int coap_obs_remove_observee_by_url(uip_ipaddr_t *addr, uint16_t port,
                                     const char *url);
 
-void coap_handle_notification(uip_ipaddr_t *, uint16_t port,
+void coap_handle_notification(uip_ipaddr_t *addr, uint16_t port,
                               coap_packet_t *notification);
 
 coap_observee_t *coap_obs_request_registration(uip_ipaddr_t *addr,

apps/er-coap/er-coap-observe.c

@@ -249,6 +249,8 @@ coap_notify_observers_sub(resource_t *resource, const char *subpath)
 
         if(notification->code < BAD_REQUEST_4_00) {
           coap_set_header_observe(notification, (obs->obs_counter)++);
+          /* mask out to keep the CoAP observe option length <= 3 bytes */
+          obs->obs_counter &= 0xffffff;
         }
         coap_set_token(notification, obs->token, obs->token_len);
 
@@ -266,7 +268,7 @@ coap_observe_handler(resource_t *resource, void *request, void *response)
 {
   coap_packet_t *const coap_req = (coap_packet_t *)request;
   coap_packet_t *const coap_res = (coap_packet_t *)response;
-  coap_observer_t * obs;
+  coap_observer_t *obs;
 
   if(coap_req->code == COAP_GET && coap_res->code < 128) { /* GET request and response without error code */
     if(IS_OPTION(coap_req, COAP_OPTION_OBSERVE)) {
@@ -274,8 +276,10 @@ coap_observe_handler(resource_t *resource, void *request, void *response)
         obs = add_observer(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport,
                            coap_req->token, coap_req->token_len,
                            coap_req->uri_path, coap_req->uri_path_len);
-       if(obs) {
+        if(obs) {
           coap_set_header_observe(coap_res, (obs->obs_counter)++);
+          /* mask out to keep the CoAP observe option length <= 3 bytes */
+          obs->obs_counter &= 0xffffff;
           /*
            * Following payload is for demonstration purposes only.
            * A subscription should return the same representation as a normal GET.

apps/er-coap/er-coap-udp.c

@@ -0,0 +1,42 @@
+#include "contiki.h"
+#include "contiki-net.h"
+#include "er-coap-engine.h"
+#include "er-coap-communication.h"
+
+#include <string.h>
+
+#define DEBUG DEBUG_NONE
+#include "uip-debug.h"
+
+static struct uip_udp_conn *udp_conn = NULL;
+
+/*-----------------------------------------------------------------------------------*/
+void
+coap_init_communication_layer(uint16_t port)
+{
+  /* new connection with remote host */
+  udp_conn = udp_new(NULL, 0, NULL);
+  udp_bind(udp_conn, port);
+  PRINTF("Listening on port %u\n", uip_ntohs(udp_conn->lport));
+}
+/*-----------------------------------------------------------------------------------*/
+void
+coap_send_message(uip_ipaddr_t *addr, uint16_t port, uint8_t *data, uint16_t length)
+{
+  /* Configure connection to reply to client */
+  uip_ipaddr_copy(&udp_conn->ripaddr, addr);
+  udp_conn->rport = port;
+
+  uip_udp_packet_send(udp_conn, data, length);
+  PRINTF("-sent UDP datagram (%u)-\n", length);
+
+  /* Restore server connection to allow data from any node */
+  memset(&udp_conn->ripaddr, 0, sizeof(udp_conn->ripaddr));
+  udp_conn->rport = 0;
+}
+/*-----------------------------------------------------------------------------------*/
+void
+coap_handle_receive()
+{
+  coap_receive();
+}

apps/er-coap/er-coap.c

@@ -44,6 +44,7 @@
 
 #include "er-coap.h"
 #include "er-coap-transactions.h"
+#include "er-coap-communication.h"
 
 #define DEBUG 0
 #if DEBUG
@@ -60,7 +61,6 @@
 /*---------------------------------------------------------------------------*/
 /*- Variables ---------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
-static struct uip_udp_conn *udp_conn = NULL;
 static uint16_t current_mid = 0;
 
 coap_status_t erbium_status_code = NO_ERROR;
@@ -178,7 +178,7 @@ coap_serialize_array_option(unsigned int number, unsigned int current_number,
   size_t i = 0;
 
   PRINTF("ARRAY type %u, len %zu, full [%.*s]\n", number, length,
-	 (int)length, array);
+         (int)length, array);
 
   if(split_char != '\0') {
     int j;
@@ -279,9 +279,7 @@ void
 coap_init_connection(uint16_t port)
 {
   /* new connection with remote host */
-  udp_conn = udp_new(NULL, 0, NULL);
-  udp_bind(udp_conn, port);
-  PRINTF("Listening on port %u\n", uip_ntohs(udp_conn->lport));
+  coap_init_communication_layer(port);
 
   /* initialize transaction ID */
   current_mid = random_rand();
@@ -422,23 +420,6 @@ coap_serialize_message(void *packet, uint8_t *buffer)
   return (option - buffer) + coap_pkt->payload_len; /* packet length */
 }
 /*---------------------------------------------------------------------------*/
-void
-coap_send_message(uip_ipaddr_t *addr, uint16_t port, uint8_t *data,
-                  uint16_t length)
-{
-  /* configure connection to reply to client */
-  uip_ipaddr_copy(&udp_conn->ripaddr, addr);
-  udp_conn->rport = port;
-
-  uip_udp_packet_send(udp_conn, data, length);
-
-  PRINTF("-sent UDP datagram (%u)-\n", length);
-
-  /* restore server socket to allow data from any node */
-  memset(&udp_conn->ripaddr, 0, sizeof(udp_conn->ripaddr));
-  udp_conn->rport = 0;
-}
-/*---------------------------------------------------------------------------*/
 coap_status_t
 coap_parse_message(void *packet, uint8_t *data, uint16_t data_len)
 {
@@ -529,8 +510,21 @@ coap_parse_message(void *packet, uint8_t *data, uint16_t data_len)
       ++current_option;
     }
 
+    if(current_option + option_length > data + data_len) {
+      /* Malformed CoAP - out of bounds */
+      PRINTF("BAD REQUEST: options outside data packet: %u > %u\n",
+             (unsigned)(current_option + option_length - data), data_len);
+      return BAD_REQUEST_4_00;
+    }
+
     option_number += option_delta;
 
+    if(option_number > COAP_OPTION_SIZE1) {
+      /* Malformed CoAP - out of bounds */
+      PRINTF("BAD REQUEST: option number too large: %u\n", option_number);
+      return BAD_REQUEST_4_00;
+    }
+
     PRINTF("OPTION %u (delta %u, len %zu): ", option_number, option_delta,
            option_length);
 
@@ -602,7 +596,7 @@ coap_parse_message(void *packet, uint8_t *data, uint16_t data_len)
       coap_pkt->uri_host = (char *)current_option;
       coap_pkt->uri_host_len = option_length;
       PRINTF("Uri-Host [%.*s]\n", (int)coap_pkt->uri_host_len,
-	     coap_pkt->uri_host);
+             coap_pkt->uri_host);
       break;
     case COAP_OPTION_URI_PORT:
       coap_pkt->uri_port = coap_parse_int_option(current_option,

apps/er-coap/er-coap.h

@@ -61,8 +61,8 @@
                                         (REST_MAX_CHUNK_SIZE < 128 ? 64 : \
                                          (REST_MAX_CHUNK_SIZE < 256 ? 128 : \
                                           (REST_MAX_CHUNK_SIZE < 512 ? 256 : \
-                                          (REST_MAX_CHUNK_SIZE < 1024 ? 512 : \
-                                          (REST_MAX_CHUNK_SIZE < 2048 ? 1024 : 2048)))))))
+                                           (REST_MAX_CHUNK_SIZE < 1024 ? 512 : \
+                                            (REST_MAX_CHUNK_SIZE < 2048 ? 1024 : 2048)))))))
 #endif /* COAP_MAX_BLOCK_SIZE */
 
 /* direct access into the buffer */
@@ -135,7 +135,7 @@ typedef struct {
 /* option format serialization */
 #define COAP_SERIALIZE_INT_OPTION(number, field, text) \
   if(IS_OPTION(coap_pkt, number)) { \
-    PRINTF(text " [%u]\n", (unsigned int)coap_pkt->field);		\
+    PRINTF(text " [%u]\n", (unsigned int)coap_pkt->field); \
     option += coap_serialize_int_option(number, current_number, option, coap_pkt->field); \
     current_number = number; \
   }
@@ -167,7 +167,7 @@ typedef struct {
     uint32_t block = coap_pkt->field##_num << 4; \
     if(coap_pkt->field##_more) { block |= 0x8; } \
     block |= 0xF & coap_log_2(coap_pkt->field##_size / 16); \
-    PRINTF(text " encoded: 0x%lX\n", (unsigned long)block);		\
+    PRINTF(text " encoded: 0x%lX\n", (unsigned long)block); \
     option += coap_serialize_int_option(number, current_number, option, block); \
     current_number = number; \
   }

apps/json-resource/generic_resource.c

@@ -119,6 +119,20 @@ static const char *get_uri (void *request)
   return buf;
 }
 
+static const char *get_query (void *request)
+{
+  static char buf [MAX_QUERY_STRING_LENGTH];
+  const char *query;
+  size_t len = coap_get_header_uri_query (request, &query);
+  if (len > sizeof (buf) - 1) {
+    *buf = '\0';
+  } else {
+    strncpy (buf, query, len);
+    buf [len] = '\0';
+  }
+  return buf;
+}
+
 void generic_get_handler
   ( void *request
   , void *response
@@ -127,14 +141,20 @@ void generic_get_handler
   , int32_t *offset
   , char *name
   , int is_str
-  , size_t (*to_str)(const char *name, const char *uri, char *buf, size_t bsize)
+  , size_t (*to_str)
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf, size_t bsize
+    )
   )
 {
   int success = 1;
   char temp [MAX_GET_STRING_LENGTH];
   size_t len = 0;
   unsigned int accept = -1;
-  const char *uri = get_uri (request);
+  const char *uri   = get_uri   (request);
+  const char *query = get_query (request);
 
   REST.get_header_accept (request, &accept);
   if (  accept != -1
@@ -160,7 +180,7 @@ void generic_get_handler
       success = 0;
       goto out;
     }
-    len += to_str (name, uri, temp + len, sizeof (temp) - len);
+    len += to_str (name, uri, query, temp + len, sizeof (temp) - len);
     if (len > sizeof (temp)) {
       success = 0;
       goto out;
@@ -176,7 +196,7 @@ void generic_get_handler
       goto out;
     }
   } else { // TEXT Format
-    len += to_str (name, uri, temp + len, sizeof (temp) - len);
+    len += to_str (name, uri, query, temp + len, sizeof (temp) - len);
     if (len > sizeof (temp)) {
       success = 0;
       goto out;
@@ -203,7 +223,8 @@ void generic_put_handler
   , uint16_t preferred_size
   , int32_t *offset
   , char *name
-  , int (*from_str)(const char *name, const char *uri, const char *s)
+  , int (*from_str)
+    (const char *name, const char *uri, const char *query, const char *s)
   )
 {
   int success = 1;
@@ -212,6 +233,7 @@ void generic_put_handler
   const uint8_t  *bytes  = NULL;
   unsigned int c_ctype;
   const char *uri = get_uri (request);
+  const char *query = get_query (request);
   REST.get_header_content_type (request, &c_ctype);
 
   if (from_str && (len = coap_get_payload (request, &bytes))) {
@@ -226,7 +248,7 @@ void generic_put_handler
         goto out;
       }
     }
-    if (from_str (name, uri, temp) < 0) {
+    if (from_str (name, uri, query, temp) < 0) {
       success = 0;
     } else {
       REST.set_response_status (response, REST.status.CHANGED);

apps/json-resource/generic_resource.h

@@ -50,8 +50,9 @@
 #define STR__(s) #s
 #define STR_(s) STR__(s)
 
-#define MAX_GET_STRING_LENGTH 100
-#define MAX_URI_STRING_LENGTH  30
+#define MAX_GET_STRING_LENGTH   100
+#define MAX_URI_STRING_LENGTH    30
+#define MAX_QUERY_STRING_LENGTH  30
 
 /*
  * A macro that extends the resource definition and also sets up the
@@ -124,11 +125,8 @@ extern int8_t json_parse_variable
  *
  * The callback functions get the name of the parameter as a first
  * argument, this allows to re-use the same function for different
- * parameters.
- * For the to_str function the is_json flag allows to generate a
- * different string depending on the content-type. In addition it gets a
- * buffer and the size of the buffer. It needs to return the number of
- * bytes output, similar to sprintf.
+ * parameters.  In addition it gets a buffer and the size of the buffer.
+ * It needs to return the number of bytes output, similar to sprintf.
  */
 extern void generic_get_handler
   ( void *request
@@ -138,7 +136,13 @@ extern void generic_get_handler
   , int32_t *offset
   , char *name
   , int is_str
-  , size_t (*to_str)(const char *name, const char *uri, char *buf, size_t bsize)
+  , size_t (*to_str)
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
   );
 
 /**
@@ -161,7 +165,8 @@ extern void generic_put_handler
   , uint16_t preferred_size
   , int32_t *offset
   , char *name
-  , int (*from_str)(const char *name, const char *uri, const char *s)
+  , int (*from_str)
+    (const char *name, const char *uri, const char *query, const char *s)
   );
 
 /*

apps/mqtt/mqtt.c

@@ -65,7 +65,7 @@
 /*---------------------------------------------------------------------------*/
 #define DEBUG 0
 #if DEBUG
-#define PRINTF(...) PRINTF(__VA_ARGS__)
+#define PRINTF(...) printf(__VA_ARGS__)
 #else
 #define PRINTF(...)
 #endif
@@ -130,6 +130,7 @@ typedef enum {
 /*---------------------------------------------------------------------------*/
 /* Protothread send macros */
 #define PT_MQTT_WRITE_BYTES(conn, data, len)                                   \
+  conn->out_write_pos = 0;                                                     \
   while(write_bytes(conn, data, len)) {                                        \
     PT_WAIT_UNTIL(pt, (conn)->out_buffer_sent);                                \
   }
@@ -147,14 +148,18 @@ typedef enum {
  */
 #define PT_MQTT_WAIT_SEND()                                                    \
   do {                                                                         \
-    process_post(PROCESS_CURRENT(), mqtt_continue_send_event, NULL);           \
-    PROCESS_WAIT_EVENT();                                                      \
-    if(ev == mqtt_abort_now_event) {                                           \
-      conn->state = MQTT_CONN_STATE_ABORT_IMMEDIATE;                           \
-      PT_EXIT(&conn->out_proto_thread);                                        \
-      process_post(PROCESS_CURRENT(), ev, data);                               \
-    } else if(ev >= mqtt_event_min && ev <= mqtt_event_max) {                  \
-      process_post(PROCESS_CURRENT(), ev, data);                               \
+    if (PROCESS_ERR_OK ==                                                      \
+      process_post(PROCESS_CURRENT(), mqtt_continue_send_event, NULL)) {       \
+      do {                                                                     \
+        PROCESS_WAIT_EVENT();                                                  \
+        if(ev == mqtt_abort_now_event) {                                       \
+          conn->state = MQTT_CONN_STATE_ABORT_IMMEDIATE;                       \
+          PT_INIT(&conn->out_proto_thread);                                    \
+          process_post(PROCESS_CURRENT(), ev, data);                           \
+        } else if(ev >= mqtt_event_min && ev <= mqtt_event_max) {              \
+          process_post(PROCESS_CURRENT(), ev, data);                           \
+        }                                                                      \
+      } while (ev != mqtt_continue_send_event);                                \
     }                                                                          \
   } while(0)
 /*---------------------------------------------------------------------------*/
@@ -751,6 +756,8 @@ handle_connack(struct mqtt_connection *conn)
     call_event(conn,
                MQTT_EVENT_CONNECTION_REFUSED_ERROR,
                &conn->in_packet.payload[1]);
+    abort_connection(conn);
+    return;
   }
 
   conn->out_packet.qos_state = MQTT_QOS_STATE_GOT_ACK;
@@ -1186,8 +1193,8 @@ PROCESS_THREAD(mqtt_process, ev, data)
       if(conn->state == MQTT_CONN_STATE_SENDING_MQTT_DISCONNECT) {
         if(conn->out_buffer_sent == 1) {
           PT_INIT(&conn->out_proto_thread);
-          while(disconnect_pt(&conn->out_proto_thread, conn) < PT_EXITED &&
-                conn->state != MQTT_CONN_STATE_ABORT_IMMEDIATE) {
+          while(conn->state != MQTT_CONN_STATE_ABORT_IMMEDIATE &&
+                disconnect_pt(&conn->out_proto_thread, conn) < PT_EXITED) {
             PT_MQTT_WAIT_SEND();
           }
           abort_connection(conn);
@@ -1204,8 +1211,8 @@ PROCESS_THREAD(mqtt_process, ev, data)
       if(conn->out_buffer_sent == 1 &&
          conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
         PT_INIT(&conn->out_proto_thread);
-        while(pingreq_pt(&conn->out_proto_thread, conn) < PT_EXITED &&
-              conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
+        while(conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER &&
+              pingreq_pt(&conn->out_proto_thread, conn) < PT_EXITED) {
           PT_MQTT_WAIT_SEND();
         }
       }
@@ -1217,8 +1224,8 @@ PROCESS_THREAD(mqtt_process, ev, data)
       if(conn->out_buffer_sent == 1 &&
          conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
         PT_INIT(&conn->out_proto_thread);
-        while(subscribe_pt(&conn->out_proto_thread, conn) < PT_EXITED &&
-              conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
+        while(conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER &&
+              subscribe_pt(&conn->out_proto_thread, conn) < PT_EXITED) {
           PT_MQTT_WAIT_SEND();
         }
       }
@@ -1230,8 +1237,8 @@ PROCESS_THREAD(mqtt_process, ev, data)
       if(conn->out_buffer_sent == 1 &&
          conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
         PT_INIT(&conn->out_proto_thread);
-        while(unsubscribe_pt(&conn->out_proto_thread, conn) < PT_EXITED &&
-              conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
+        while(conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER &&
+              unsubscribe_pt(&conn->out_proto_thread, conn) < PT_EXITED) {
           PT_MQTT_WAIT_SEND();
         }
       }
@@ -1243,8 +1250,8 @@ PROCESS_THREAD(mqtt_process, ev, data)
       if(conn->out_buffer_sent == 1 &&
          conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
         PT_INIT(&conn->out_proto_thread);
-        while(publish_pt(&conn->out_proto_thread, conn) < PT_EXITED &&
-              conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER) {
+        while(conn->state == MQTT_CONN_STATE_CONNECTED_TO_BROKER &&
+              publish_pt(&conn->out_proto_thread, conn) < PT_EXITED) {
           PT_MQTT_WAIT_SEND();
         }
       }
@@ -1331,7 +1338,9 @@ mqtt_connect(struct mqtt_connection *conn, char *host, uint16_t port,
   conn->connect_vhdr_flags |= MQTT_VHDR_CLEAN_SESSION_FLAG;
 
   /* convert the string IPv6 address to a numeric IPv6 address */
-  uiplib_ip6addrconv(host, &ip6addr);
+  if(uiplib_ip6addrconv(host, &ip6addr) == 0) {
+    return MQTT_STATUS_ERROR;
+  }
 
   uip_ipaddr_copy(&(conn->server_ip), ipaddr);
 

apps/mqtt/mqtt.h

@@ -196,7 +196,7 @@ typedef enum {
   MQTT_CONN_STATE_ERROR,
   MQTT_CONN_STATE_DNS_ERROR,
   MQTT_CONN_STATE_DISCONNECTING,
-
+  MQTT_CONN_STATE_ABORT_IMMEDIATE,
   MQTT_CONN_STATE_NOT_CONNECTED,
   MQTT_CONN_STATE_DNS_LOOKUP,
   MQTT_CONN_STATE_TCP_CONNECTING,
@@ -204,7 +204,6 @@ typedef enum {
   MQTT_CONN_STATE_CONNECTING_TO_BROKER,
   MQTT_CONN_STATE_CONNECTED_TO_BROKER,
   MQTT_CONN_STATE_SENDING_MQTT_DISCONNECT,
-  MQTT_CONN_STATE_ABORT_IMMEDIATE,
 } mqtt_conn_state_t;
 /*---------------------------------------------------------------------------*/
 struct mqtt_string {

apps/oma-lwm2m/lwm2m-engine.c

@@ -587,6 +587,40 @@ get_resource(const lwm2m_instance_t *instance, lwm2m_context_t *context)
   return NULL;
 }
 /*---------------------------------------------------------------------------*/
+/**
+ * @brief Write a list of object instances as a CoRE Link-format list
+ */
+static int
+write_object_instances_link(const lwm2m_object_t *object,
+                            char *buffer, size_t size)
+{
+  const lwm2m_instance_t *instance;
+  int len, rdlen, i;
+
+  PRINTF("</%d>", object->id);
+  rdlen = snprintf(buffer, size, "</%d>",
+                   object->id);
+  if(rdlen < 0 || rdlen >= size) {
+    return -1;
+  }
+
+  for(i = 0; i < object->count; i++) {
+    if((object->instances[i].flag & LWM2M_INSTANCE_FLAG_USED) == 0) {
+      continue;
+    }
+    instance = &object->instances[i];
+    PRINTF(",</%d/%d>", object->id, instance->id);
+
+    len = snprintf(&buffer[rdlen], size - rdlen,
+                   ",<%d/%d>", object->id, instance->id);
+    rdlen += len;
+    if(len < 0 || rdlen >= size) {
+      return -1;
+    }
+  }
+  return rdlen;
+}
+/*---------------------------------------------------------------------------*/
 static int
 write_rd_link_data(const lwm2m_object_t *object,
                    const lwm2m_instance_t *instance,
@@ -1052,6 +1086,23 @@ lwm2m_engine_handler(const lwm2m_object_t *object,
         REST.set_header_content_type(response, LWM2M_JSON);
       }
     }
+  } else if(depth == 1) {
+    /* produce a list of instances */
+    if(method != METHOD_GET) {
+      REST.set_response_status(response, METHOD_NOT_ALLOWED_4_05);
+    } else {
+      int rdlen;
+      PRINTF("Sending instance list for object %u\n", object->id);
+      /* TODO: if(accept == APPLICATION_LINK_FORMAT) { */
+      rdlen = write_object_instances_link(object, (char *)buffer, preferred_size);
+      if(rdlen < 0) {
+        PRINTF("Failed to generate object response\n");
+        REST.set_response_status(response, SERVICE_UNAVAILABLE_5_03);
+        return;
+      }
+      REST.set_header_content_type(response, REST.type.APPLICATION_LINK_FORMAT);
+      REST.set_response_payload(response, buffer, rdlen);
+    }
   }
 }
 /*---------------------------------------------------------------------------*/

apps/orchestra/orchestra-rule-unicast-per-neighbor-rpl-storing.c

@@ -45,6 +45,14 @@
 #include "net/ipv6/uip-ds6-route.h"
 #include "net/packetbuf.h"
 #include "net/rpl/rpl-conf.h"
+#include "net/rpl/rpl-private.h"
+
+/*
+ * The body of this rule should be compiled only when "nbr_routes" is available,
+ * otherwise a link error causes build failure. "nbr_routes" is compiled if
+ * UIP_CONF_MAX_ROUTES != 0. See uip-ds6-route.c.
+ */
+#if UIP_CONF_MAX_ROUTES != 0
 
 #if ORCHESTRA_UNICAST_SENDER_BASED && ORCHESTRA_COLLISION_FREE_HASH
 #define UNICAST_SLOT_SHARED_FLAG    ((ORCHESTRA_UNICAST_PERIOD < (ORCHESTRA_MAX_HASH + 1)) ? LINK_OPTION_SHARED : 0)
@@ -211,3 +219,5 @@ struct orchestra_rule unicast_per_neighbor_rpl_storing = {
   child_added,
   child_removed,
 };
+
+#endif /* UIP_MAX_ROUTES */

apps/ota-update/Makefile.ota-update

@@ -0,0 +1 @@
+ota-update_src = res_bootloader.c res_reboot.c res_upload_image.c

apps/ota-update/ota-update.h

@@ -0,0 +1,22 @@
+extern resource_t res_upload_image;
+extern resource_t res_part_count;
+extern resource_t res_part_size;
+extern resource_t res_boot_default;
+extern resource_t res_boot_next;
+extern resource_t res_active_part;
+extern resource_t res_part_start;
+extern resource_t res_part_ok;
+extern resource_t res_reboot;
+
+#define OTA_ACTIVATE_RESOURCES() \
+    static char resname[] = "ota/update";\
+    rest_activate_resource (&res_upload_image,   resname);\
+    rest_activate_resource (&res_part_count,     (char *)"ota/part_count");\
+    rest_activate_resource (&res_part_size,      (char *)"ota/part_size");\
+    rest_activate_resource (&res_boot_default,   (char *)"ota/boot_default");\
+    rest_activate_resource (&res_boot_next,      (char *)"ota/boot_next");\
+    rest_activate_resource (&res_active_part,    (char *)"ota/active_part");\
+    rest_activate_resource (&res_part_start,     (char *)"ota/part_start");\
+    rest_activate_resource (&res_part_ok,        (char *)"ota/part_ok");\
+    rest_activate_resource (&res_reboot,         (char *)"ota/reboot");
+

apps/ota-update/res_bootloader.c

@@ -0,0 +1,260 @@
+/*
+ * Copyright (c) 2015, Ralf Schlatterbeck Open Source Consulting
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+/**
+ * \file
+ *      Bootloader ressources
+ * \author
+ *      Ralf Schlatterbeck <rsc@runtux.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include "contiki.h"
+#include "contiki-net.h"
+#include "rest-engine.h"
+#include "er-coap-engine.h"
+#include "uiplib.h"
+#include "generic_resource.h"
+#include "bootloader_if.h"
+#include "Arduino.h"
+
+/*
+ * Resources to be activated need to be imported through the extern keyword.
+ * The build system automatically compiles the resources in the
+ * corresponding sub-directory.
+ */
+
+static size_t
+part_count
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "%ld", bootloader_get_part_count ());
+}
+
+GENERIC_RESOURCE
+  ( part_count
+  , Partition Count
+  , count
+  , 0
+  , NULL
+  , part_count
+  );
+
+static size_t
+part_size
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "%ld", bootloader_get_part_size ());
+}
+
+GENERIC_RESOURCE
+  ( part_size
+  , Partition Size
+  , count
+  , 0
+  , NULL
+  , part_size
+  );
+
+static size_t
+get_boot_default
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "%ld", bootloader_get_boot_default ());
+}
+
+static int
+set_boot_default
+    (const char *name, const char *uri, const char *query, const char *s)
+{
+    uint32_t tmp = strtoul (s, NULL, 10);
+    bootloader_set_boot_default (tmp);
+    return 0;
+}
+
+GENERIC_RESOURCE
+  ( boot_default
+  , Default boot partition
+  , count
+  , 0
+  , set_boot_default
+  , get_boot_default
+  );
+
+static size_t
+get_boot_next
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "%ld", bootloader_get_boot_next ());
+}
+
+static int
+set_boot_next
+    (const char *name, const char *uri, const char *query, const char *s)
+{
+    uint32_t tmp = strtoul (s, NULL, 10);
+    bootloader_set_boot_next (tmp);
+    return 0;
+}
+
+GENERIC_RESOURCE
+  ( boot_next
+  , Next boot partition
+  , count
+  , 0
+  , set_boot_next
+  , get_boot_next
+  );
+
+static size_t
+get_active_part
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "%ld", bootloader_get_active_part ());
+}
+
+GENERIC_RESOURCE
+  ( active_part
+  , Currently active partition
+  , count
+  , 0
+  , NULL
+  , get_active_part
+  );
+
+/*
+ * Parse query info. We insist that the query starts with 'part='
+ * Then we parse the integer following the part= string and return the
+ * number. The number is always positive, if something goes wrong we
+ * return a negative number.
+ */
+static int get_query_partition (const char *query)
+{
+    if (strncmp (query, "part=", 5)) {
+        return -1;
+    }
+    return strtoul (query + 5, NULL, 10);
+}
+
+static size_t
+get_part_start
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    int idx = get_query_partition (query);
+    if (idx < 0) {
+        return snprintf (buf, bsize, "Invalid: \"%s\" use part=N query", query);
+    }
+    return snprintf (buf, bsize, "%ld", bootloader_get_part_start (idx));
+}
+
+GENERIC_RESOURCE
+  ( part_start
+  , Start of partition
+  , count
+  , 0
+  , NULL
+  , get_part_start
+  );
+
+static int
+set_part_ok
+    (const char *name, const char *uri, const char *query, const char *s)
+{
+    uint32_t tmp = strtoul (s, NULL, 10);
+    int idx = get_query_partition (query);
+    if (idx < 0) {
+        return -1;
+    }
+    if (tmp) {
+        bootloader_set_part_ok (idx);
+    } else {
+        bootloader_clr_part_ok (idx);
+    }
+    return 0;
+}
+
+static size_t
+get_part_ok
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    int idx = get_query_partition (query);
+    if (idx < 0) {
+        return snprintf (buf, bsize, "Invalid: \"%s\" use part=N query", query);
+    }
+    return snprintf (buf, bsize, "%ld", bootloader_get_part_ok (idx));
+}
+
+GENERIC_RESOURCE
+  ( part_ok
+  , Set/Clear Partition OK flag
+  , count
+  , 0
+  , set_part_ok
+  , get_part_ok
+  );

apps/ota-update/res_reboot.c

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2017, Marcus Priesch Open Source Consulting
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+/**
+ * \file
+ *      Reboot ressource
+ * \author
+ *      Marcus Priesch <marcus@priesch.co.at>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "contiki.h"
+#include "er-coap-engine.h"
+#include "generic_resource.h"
+#include "dev/watchdog.h"
+
+PROCESS(reboot_process, "reboot");
+PROCESS_THREAD(reboot_process, ev, data)
+{
+  static struct etimer etimer;
+
+  //PROCESS_EXITHANDLER(leds_off(LEDS_ALL);)
+
+  PROCESS_BEGIN();
+
+  //shell_output_str(&reboot_command,
+  //                 "Rebooting the node in four seconds...", "");
+
+  etimer_set(&etimer, CLOCK_SECOND * 4);
+  PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
+  //leds_on(LEDS_RED);
+  //etimer_reset(&etimer);
+  //PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
+  //leds_on(LEDS_GREEN);
+  //etimer_reset(&etimer);
+  //PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
+  //leds_on(LEDS_BLUE);
+  //etimer_reset(&etimer);
+  //PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
+
+  watchdog_reboot();
+
+  PROCESS_END();
+}
+
+
+
+static size_t
+get_reboot
+    ( const char *name
+    , const char *uri
+    , const char *query
+    , char *buf
+    , size_t bsize
+    )
+{
+    return snprintf (buf, bsize, "put 'OK' to reboot.");
+}
+
+static int
+do_reboot
+    (const char *name, const char *uri, const char *query, const char *s)
+{
+    if (strncmp (s, "OK", 2) == 0) {
+        process_start (&reboot_process, NULL);
+        return 0;
+    }
+    return 0;
+}
+
+GENERIC_RESOURCE
+  ( reboot
+  , Reboot node
+  , count
+  , 0
+  , do_reboot
+  , get_reboot
+  );
+

apps/ota-update/res_upload_image.c

@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2017, Marcus Priesch, Ralf Schlatterbeck
+ * with code from the res-plugtest-large-update.c by
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+/**
+ * \file
+ *      Over-the-air update using blockwise transfer
+ * \author
+ *      Marcus Priesch <marcus@priesch.co.at>
+ *      Ralf Schlatterbeck <rsc@runtux.com>
+ */
+
+#include <string.h>
+#include "sys/cc.h"
+#include "rest-engine.h"
+#include "er-coap.h"
+#include "contiki.h"
+#include "contiki-net.h"
+#include "er-coap.h"
+#include "Arduino.h"
+#include <avr/interrupt.h>
+#include "bootloader_if.h"
+
+#if 1
+#include <stdio.h>
+#define PRINTF(x) printf x
+#else
+#define PRINTF(x)
+#endif
+
+
+// We allocate this statically, otherwise we cannot flash a new image
+// when ram is exhausted!
+static uint8_t current_page [256];
+static uint32_t current_offset = 0;
+#define PAGESIZE (sizeof (current_page))
+
+/*
+ * Note that the current code relies on the fact that the bootloader
+ * used only supports two images. This may change in the future. We
+ * mainly need to relax some of the checks and use a different algorithm
+ * for computing imgidx, the index of the partition to be overwritten.
+ * If the bootloader supports more than two partitions at some point we
+ * may want the uploader to explicitly define the partition to be used.
+ */
+
+static void
+res_put_handler
+    ( void *request
+    , void *response
+    , uint8_t *buffer
+    , uint16_t preferred_size
+    , int32_t *offset
+    )
+{
+  coap_packet_t *const packet = (coap_packet_t *)request;
+  uint8_t *in_data = NULL;
+  size_t len = 0;
+  uint32_t partition_start = 0;
+  const uint32_t partition_size = bootloader_get_part_size  ();
+  uint32_t imgidx = 0;
+  unsigned int ct = -1;
+
+  /* If the currently-booted partition is not the default partition we
+   * do not allow overwriting a partition: Neither the currently-booted
+   * one (this would crash) nor the only partition that is marked
+   * bootable. We also insist that boot_next == boot_default.
+   */
+  if (bootloader_get_boot_default () != bootloader_get_boot_next ()) {
+    REST.set_response_status (response, REST.status.BAD_REQUEST);
+    const char *error_msg = "Won't overwrite boot_next";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+  if (bootloader_get_boot_default () != bootloader_get_active_part ()) {
+    REST.set_response_status (response, REST.status.BAD_REQUEST);
+    const char *error_msg = "Won't overwrite current";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+  imgidx = !bootloader_get_active_part ();
+  partition_start = bootloader_get_part_start (imgidx);
+
+  REST.get_header_content_type (request, &ct);
+
+  /* Require content_type APPLICATION_OCTET_STREAM */
+  if (ct != REST.type.APPLICATION_OCTET_STREAM) {
+    REST.set_response_status (response, REST.status.BAD_REQUEST);
+    const char *error_msg = "ContentType";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+
+  len = REST.get_request_payload (request, (const uint8_t **)&in_data);
+  PRINTF (("cur: %lu len: %lu, offset: %lu\n",
+    (uint32_t)current_offset, (uint32_t)len, (uint32_t)*offset));
+  PRINTF (("b1-offs: %lu, b1-size: %u, b1-num: %lu b1-more: %d b1-size1: %lu\n",
+      packet->block1_offset, packet->block1_size, packet->block1_num,
+      packet->block1_more, packet->size1));
+  if (len == 0 || NULL == in_data) {
+    REST.set_response_status (response, REST.status.BAD_REQUEST);
+    const char *error_msg = "NoPayload";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+
+  /* if the block1_offset is 0 a new transmission has started */
+  if (!packet->block1_offset) {
+    current_offset = 0;
+  }
+
+  if (packet->block1_offset > current_offset) {
+    REST.set_response_status (response, REST.status.REQUEST_ENTITY_INCOMPLETE);
+    const char *error_msg = "OutOfSequence";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+
+  /* Old packet or retransmission, immediately confirm */
+  if (packet->block1_offset && packet->block1_offset + len <= current_offset) {
+    REST.set_response_status (response, REST.status.CHANGED);
+    coap_set_header_block1
+      (response, packet->block1_num, 0, packet->block1_size);
+    return;
+  }
+
+  // FIXME: blocksize may be larger than our flash page size
+  if (len > PAGESIZE) {
+    REST.set_response_status (response, REST.status.INTERNAL_SERVER_ERROR);
+    const char *error_msg = "GRMPF: PageSize";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+  // FIXME: blocksize may be larger than our flash page size
+  // So we should handle this case and repeatedly flash a block until the
+  // received data is written.
+  if (current_offset % PAGESIZE + len > PAGESIZE) {
+    REST.set_response_status (response, REST.status.INTERNAL_SERVER_ERROR);
+    const char *error_msg = "GRMPF: blocksize";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+  // Should never happen, we test for < and > earlier.
+  if (packet->block1_offset != current_offset) {
+    REST.set_response_status (response, REST.status.INTERNAL_SERVER_ERROR);
+    const char *error_msg = "GRMPF: Offset";
+    REST.set_response_payload (response, error_msg, strlen (error_msg));
+    return;
+  }
+
+  if (packet->block1_offset + len > partition_size) {
+    REST.set_response_status
+      (response, REST.status.REQUEST_ENTITY_TOO_LARGE);
+    REST.set_response_payload
+      (response, buffer, sprintf ((char *)buffer, "%luB max.", partition_size));
+    return;
+  }
+
+  memcpy (current_page + current_offset % PAGESIZE, in_data, len);
+  /* Whenever an upload is started for a partition mark it as not ok */
+  if (current_offset == 0) {
+    PRINTF (("Clear partition_ok: %ld\n", imgidx));
+    bootloader_clr_part_ok (imgidx);
+  }
+  current_offset += len;
+
+  if (current_offset % PAGESIZE == 0) {
+    uint32_t dst_address = partition_start + current_offset - PAGESIZE;
+    /* Special case: Flash irq vectors to backup position */
+    if (current_offset - PAGESIZE < PART_IRQVEC_SIZE) {
+      /* Only for images not at position 0 write first PART_IRQVEC_SIZE
+       * bytes also to original position. For partition 0 it will be
+       * copied there anyway *and* we would crash if we wrote to the
+       * active memory!
+       */
+      if (partition_start != 0) {
+        PRINTF (("Flashing: %lx to %lx\n", (uint32_t)PAGESIZE, dst_address));
+        bootloader_write_page_to_flash (dst_address, PAGESIZE, current_page);
+      }
+      /* Note: The partition_size returned by the bootloader does *NOT*
+       * include the PART_IRQVEC_SIZE
+       */
+      dst_address = partition_start + partition_size
+                  + current_offset - PAGESIZE;
+    }
+    PRINTF (("Flashing: %lx to %lx\n", (uint32_t)PAGESIZE, dst_address));
+    bootloader_write_page_to_flash (dst_address, PAGESIZE, current_page);
+  } else if (!packet->block1_more) {
+    uint32_t dst_address =
+        partition_start + (current_offset / PAGESIZE) * PAGESIZE;
+    PRINTF (("Flashing: last %lx to %lx\n", (uint32_t)PAGESIZE, dst_address));
+    bootloader_write_page_to_flash (dst_address, PAGESIZE, current_page);
+  }
+
+
+  if (!packet->block1_more) {
+    // we are finished
+    bootloader_set_boot_next (imgidx);
+    current_offset = 0;
+  }
+
+  REST.set_response_status (response, REST.status.CHANGED);
+  coap_set_header_block1 (response, packet->block1_num, 0, packet->block1_size);
+}
+
+RESOURCE(
+    res_upload_image
+  , "title=\"Flash memory upgrade\";rt=\"block\""
+  , NULL
+  , NULL
+  , res_put_handler
+  , NULL
+  );
+

apps/rest-engine/rest-constants.h

@@ -56,6 +56,7 @@ struct rest_implementation_status {
   const unsigned int NOT_FOUND;                 /* NOT_FOUND_4_04,                NOT_FOUND_404 */
   const unsigned int METHOD_NOT_ALLOWED;        /* METHOD_NOT_ALLOWED_4_05,       METHOD_NOT_ALLOWED_405 */
   const unsigned int NOT_ACCEPTABLE;            /* NOT_ACCEPTABLE_4_06,           NOT_ACCEPTABLE_406 */
+  const unsigned int REQUEST_ENTITY_INCOMPLETE; /* REQUEST_ENTITY_INCOMPLETE_4_08, REQUEST_ENTITY_INCOMPLETE_408 */
   const unsigned int REQUEST_ENTITY_TOO_LARGE;  /* REQUEST_ENTITY_TOO_LARGE_4_13, REQUEST_ENTITY_TOO_LARGE_413 */
   const unsigned int UNSUPPORTED_MEDIA_TYPE;    /* UNSUPPORTED_MEDIA_TYPE_4_15,   UNSUPPORTED_MEDIA_TYPE_415 */
 

apps/rest-engine/rest-engine.c

@@ -113,6 +113,14 @@ rest_activate_resource(resource_t *resource, char *path)
     PRINTF("Periodic resource: %p (%s)\n", resource->periodic,
            resource->periodic->resource->url);
     list_add(restful_periodic_services, resource->periodic);
+    if(process_is_running(&rest_engine_process)) {
+      PRINTF("Periodic: Set timer for /%s to %lu\n",
+             resource->url, resource->periodic->period);
+      PROCESS_CONTEXT_BEGIN(&rest_engine_process);
+      etimer_set(&resource->periodic->periodic_timer,
+                 resource->periodic->period);
+      PROCESS_CONTEXT_END(&rest_engine_process);
+    }
   }
 }
 /*---------------------------------------------------------------------------*/

apps/serial-shell/serial-shell.c

@@ -49,7 +49,7 @@
 
 #include <stdio.h>
 #include <string.h>
-
+#include "arduino-process.h"
 
 /*---------------------------------------------------------------------------*/
 PROCESS(serial_shell_process, "Contiki serial shell");
@@ -58,6 +58,8 @@ void
 shell_default_output(const char *text1, int len1, const char *text2, int len2)
 {
   int i;
+  
+  mcu_sleep_disable();
   if(text1 == NULL) {
     text1 = "";
     len1 = 0;
@@ -89,6 +91,7 @@ void
 shell_exit(void)
 {
 }
+
 /*---------------------------------------------------------------------------*/
 PROCESS_THREAD(serial_shell_process, ev, data)
 {
@@ -98,6 +101,7 @@ PROCESS_THREAD(serial_shell_process, ev, data)
 
   while(1) {
     PROCESS_WAIT_EVENT_UNTIL(ev == serial_line_event_message && data != NULL);
+    mcu_sleep_disable();
     shell_input(data, strlen(data));
   }
 

apps/shell/Makefile.shell

@@ -66,3 +66,11 @@ endif
 ifeq ($(TARGET),z1)
   shell_src += shell-sky.c shell-exec.c
 endif
+
+ifeq ($(TARGET),osd-merkur-256)
+  shell_src += shell-merkur.c
+endif
+
+ifeq ($(TARGET),osd-merkur-128)
+  shell_src += shell-merkur.c
+endif

apps/shell/shell-merkur.c

@@ -0,0 +1,237 @@
+/*
+ * Copyright (c) 2008, Swedish Institute of Computer Science.
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+
+/**
+ * \file
+ *         Merkurboard-specific Contiki shell commands
+ * \author
+ *         Harald Pichler <harald@the-develop.net>
+ */
+
+#include "contiki.h"
+#include <stdio.h>
+#include <stdlib.h>     /* strtol */
+#include "sys/cc.h"
+#include "dev/radio.h"
+#include "shell-merkur.h"
+#include "params.h"
+#include "arduino-process.h"
+
+/*---------------------------------------------------------------------------*/
+PROCESS(shell_txpower_process, "txpower");
+SHELL_COMMAND(txpower_command,
+	      "txpower",
+	      "txpower <power>: change transmission power 0 (3dbm, default) to 15 (-17.2dbm)",
+	      &shell_txpower_process);
+PROCESS(shell_panid_process, "panid");
+SHELL_COMMAND(panid_command,
+	      "panid",
+	      "panid <0xabcd>: change panid (default 0xabcd)",
+	      &shell_panid_process);
+PROCESS(shell_rfchannel_process, "rfchannel");
+SHELL_COMMAND(rfchannel_command,
+	      "rfchannel",
+	      "rfchannel <channel>: change radio channel (11 - 26)",
+	      &shell_rfchannel_process);
+PROCESS(shell_ccathresholds_process, "ccathresholds");
+SHELL_COMMAND(ccathresholds_command,
+	      "ccathresholds",
+	      "ccathresholds <threshold: change cca thresholds -91 to -61 dBm (default -77)",
+	      &shell_ccathresholds_process);
+PROCESS(shell_macconf_process, "macconf");
+SHELL_COMMAND(macconf_command,
+	      "macconf",
+	      "macconf <conf>: change mac layer 0 -> do nothing; 1 -> Radio allways on",
+	      &shell_macconf_process);
+PROCESS(shell_saverfparam_process, "saverfparam");
+SHELL_COMMAND(saverfparam_command,
+	      "saverfparam",
+	      "saverfparam <> save radio parameters txpower, channel, panid to eeprom settingsmanager",
+	      &shell_saverfparam_process);
+
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_txpower_process, ev, data)
+{
+  radio_value_t value;
+  char buf[10];
+  const char *newptr;
+  PROCESS_BEGIN();
+
+  value = shell_strtolong(data, &newptr);
+  
+  /* If no transmission power was given on the command line, we print
+     out the current txpower. */
+  if(newptr == data) {
+	if(get_param(RADIO_PARAM_TXPOWER, &value) == RADIO_RESULT_OK) {
+    }
+  } else {
+    set_param(RADIO_PARAM_TXPOWER, value);
+  }
+
+  snprintf(buf, sizeof(buf), "%3d", value);
+  shell_output_str(&txpower_command, "TX Power: ", buf);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_rfchannel_process, ev, data)
+{
+  radio_value_t value;
+  char buf[10];
+  const char *newptr;
+  PROCESS_BEGIN();
+
+  value = shell_strtolong(data, &newptr);
+  
+  /* If no channel was given on the command line, we print out the
+     current channel. */
+  if(newptr == data) {
+	if(get_param(RADIO_PARAM_CHANNEL, &value) == RADIO_RESULT_OK) {
+		
+    }
+  } else {
+    set_param(RADIO_PARAM_CHANNEL, value);
+  }
+
+  snprintf(buf, sizeof(buf), "%d", value);
+  shell_output_str(&rfchannel_command, "Channel: ", buf);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_ccathresholds_process, ev, data)
+{
+  radio_value_t value;
+  char buf[10];
+  const char *newptr;
+  PROCESS_BEGIN();
+
+  value = shell_strtolong(data, &newptr);
+  
+  /* If no channel was given on the command line, we print out the
+     current channel. */
+  if(newptr == data) {
+	if(get_param(RADIO_PARAM_CCA_THRESHOLD, &value) == RADIO_RESULT_OK) {
+		
+    }
+  } else {
+    set_param(RADIO_PARAM_CCA_THRESHOLD, value);
+  }
+
+  snprintf(buf, sizeof(buf), "%d dBm", value);
+  shell_output_str(&rfchannel_command, "CCA Threshold: ", buf);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_macconf_process, ev, data)
+{
+  radio_value_t value;
+  char buf[10];
+  const char *newptr;
+  PROCESS_BEGIN();
+
+  value = shell_strtolong(data, &newptr);
+  
+  /* If no transmission power was given on the command line, we print
+     out the current macconf. */
+  if(newptr == data) {
+    value = params_get_macconf();
+  } else {
+    params_set_macconf(value);
+  }
+
+  snprintf(buf, sizeof(buf), "%3d", value);
+  shell_output_str(&txpower_command, "macconf: ", buf);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_panid_process, ev, data)
+{
+  radio_value_t value;
+  char buf[10];
+  char *newptr;
+  PROCESS_BEGIN();
+
+  value = strtol(data, &newptr, 0);
+  
+  /* If no channel was given on the command line, we print out the
+     current channel. */
+  if(newptr == data) {
+	if(get_param(RADIO_PARAM_PAN_ID, &value) != RADIO_RESULT_OK) {
+	//  printf("error: get_param RADIO_PARAM_PAN_ID\n");
+    }
+  } else {
+    set_param(RADIO_PARAM_PAN_ID, value);
+  }
+
+  snprintf(buf, sizeof(buf),"0x%02x%02x\n", (value >> 8) & 0xFF, value & 0xFF);
+  shell_output_str(&panid_command, "panid: ", buf);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_saverfparam_process, ev, data)
+{
+  PROCESS_BEGIN();
+  /* Save txpower */
+  params_save_txpower();
+  /* Save rfchannel */
+  params_save_channel();  
+  /* Save ccathresholds */
+  // todo 
+  
+  /* Save panid */
+  params_save_panid();
+  /* Save macconf */
+  params_save_macconf();
+
+  shell_output_str(&rfchannel_command, "saverfparam done ", 0);
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+void
+shell_merkur_init(void)
+{
+//  shell_ps_init();
+  shell_reboot_init();
+  shell_register_command(&txpower_command);
+  shell_register_command(&rfchannel_command);
+  shell_register_command(&ccathresholds_command);  
+  shell_register_command(&panid_command);
+  shell_register_command(&macconf_command);  
+  shell_register_command(&saverfparam_command);
+//  shell_register_command(&s_command);
+}
+/*---------------------------------------------------------------------------*/

apps/shell/shell-merkur.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2008, Swedish Institute of Computer Science.
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+
+/**
+ * \file
+ *         Header file for Tmote Sky-specific Contiki shell commands
+ * \author
+ *         harald pichler <harald@the-develop.net>
+ */
+
+#ifndef SHELL_MERKUR_H_
+#define SHELL_MERKUR_H_
+
+#include "shell.h"
+
+void shell_merkur_init(void);
+
+#endif /* SHELL_MERKUR_H_ */

apps/time/resource_crontab.c

@@ -35,7 +35,8 @@ static size_t get_index_from_uri (const char *uri)
   return idx;
 }
 
-int crontab_from_string (const char *name, const char *uri, const char *s)
+int crontab_from_string
+  (const char *name, const char *uri, const char *query, const char *s)
 {
   const char *err;
   int res;
@@ -52,7 +53,13 @@ int crontab_from_string (const char *name, const char *uri, const char *s)
 }
 
 size_t
-crontab_to_string (const char *name, const char *uri, char *buf, size_t bsize)
+crontab_to_string
+  ( const char *name
+  , const char *uri
+  , const char *query
+  , char *buf
+  , size_t bsize
+  )
 {
   /* FIXME: For now we only return "valid" or "invalid" until someone
    * comes up with a clever algorithm to reconstruct a crontab string

apps/time/resource_gmtime.c

@@ -17,7 +17,8 @@
 #include "er-coap.h"
 #include "generic_resource.h"
 
-size_t time_to_string (const char *name, const char *uri, char *buf, size_t bs)
+size_t time_to_string
+  (const char *name, const char *uri, const char *query, char *buf, size_t bs)
 {
     struct xtimeval tv;
     struct xtm tm;

apps/time/resource_timestamp.c

@@ -21,7 +21,8 @@
 #include "er-coap.h"
 #include "generic_resource.h"
 
-int timestamp_from_string (const char *name, const char *uri, const char *s)
+int timestamp_from_string
+  (const char *name, const char *uri, const char *query, const char *s)
 {
   struct xtimeval tv;
   // FIXME: Platform has no strtoll (long long)?
@@ -31,7 +32,13 @@ int timestamp_from_string (const char *name, const char *uri, const char *s)
 }
 
 size_t
-timestamp_to_string (const char *name, const char *uri, char *buf, size_t bsize)
+timestamp_to_string
+  ( const char *name
+  , const char *uri
+  , const char *query
+  , char *buf
+  , size_t bsize
+  )
 {
   struct xtimeval tv;
   xgettimeofday (&tv, NULL);

apps/time/resource_timezone.c

@@ -17,14 +17,21 @@
 #include "er-coap.h"
 #include "generic_resource.h"
 
-int timezone_from_string (const char *name, const char *uri, const char *s)
+int timezone_from_string
+  (const char *name, const char *uri, const char *query, const char *s)
 {
   set_tz (s);
   return 0;
 }
 
 size_t
-timezone_to_string (const char *name, const char *uri, char *buf, size_t bsize)
+timezone_to_string
+  ( const char *name
+  , const char *uri
+  , const char *query
+  , char *buf
+  , size_t bsize
+  )
 {
   if (get_tz (buf, bsize) == NULL) {
     *buf = '\0';

apps/tinydtls

@@ -0,0 +1 @@
+Subproject commit e95b02584a0041817da67c8c01f2a197d0c26915

apps/webbrowser/htmlparser.c

@@ -410,6 +410,7 @@ parse_tag(void)
     switch_majorstate(s.lastmajorstate);
     break;
   case TAG_BODY:
+    do_word();
     s.majorstate = s.lastmajorstate = MAJORSTATE_BODY;
     break;
   case TAG_IMG:

apps/webserver/httpd-cgi.c

@@ -155,10 +155,13 @@ make_tcp_stats(void *arg)
 {
   struct uip_conn *conn;
   struct httpd_state *s = (struct httpd_state *)arg;
+#if NETSTACK_CONF_WITH_IPV6
+  char buf[48];
+#endif
+
   conn = &uip_conns[s->u.count];
 
 #if NETSTACK_CONF_WITH_IPV6
-  char buf[48];
   httpd_sprint_ip6(conn->ripaddr, buf);
   return snprintf((char *)uip_appdata, uip_mss(),
          "<tr align=\"center\"><td>%d</td><td>%s:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n",
@@ -249,8 +252,9 @@ extern uip_ds6_netif_t uip_ds6_if;
 static unsigned short
 make_addresses(void *p)
 {
-uint8_t i,j=0;
-uint16_t numprinted;
+  uint8_t i, j = 0;
+  uint16_t numprinted;
+
   numprinted = httpd_snprintf((char *)uip_appdata, uip_mss(),httpd_cgi_addrh);
   for (i=0; i<UIP_DS6_ADDR_NB;i++) {
     if (uip_ds6_if.addr_list[i].isused) {
@@ -277,7 +281,7 @@ PT_THREAD(addresses(struct httpd_state *s, char *ptr))
 static unsigned short
 make_neighbors(void *p)
 {
-uint8_t i,j=0;
+uint8_t j=0;
 uint16_t numprinted;
   numprinted = httpd_snprintf((char *)uip_appdata, uip_mss(),httpd_cgi_addrh);
   uip_ds6_nbr_t *nbr;
@@ -309,7 +313,7 @@ make_routes(void *p)
   static const char httpd_cgi_rtes1[] HTTPD_STRING_ATTR = "(%u (via ";
   static const char httpd_cgi_rtes2[] HTTPD_STRING_ATTR = ") %lus<br>";
   static const char httpd_cgi_rtes3[] HTTPD_STRING_ATTR = ")<br>";
-  uint8_t i,j=0;
+  uint8_t j=0;
   uint16_t numprinted;
   uip_ds6_route_t *r;
 
@@ -320,7 +324,7 @@ make_routes(void *p)
     j++;
     numprinted += httpd_cgi_sprint_ip6(r->ipaddr, uip_appdata + numprinted);
     numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_rtes1, r->length);
-    numprinted += httpd_cgi_sprint_ip6(uip_ds6_route_nexthop(r), uip_appdata + numprinted);
+    numprinted += httpd_cgi_sprint_ip6(*(uip_ds6_route_nexthop(r)), uip_appdata + numprinted);
     if(r->state.lifetime < 3600) {
       numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_rtes2, r->state.lifetime);
     } else {

core/cfs/cfs-coffee.c

@@ -1309,7 +1309,6 @@ cfs_coffee_configure_log(const char *filename, unsigned log_size,
   return 0;
 }
 /*---------------------------------------------------------------------------*/
-#if COFFEE_IO_SEMANTICS
 int
 cfs_coffee_set_io_semantics(int fd, unsigned flags)
 {
@@ -1321,7 +1320,6 @@ cfs_coffee_set_io_semantics(int fd, unsigned flags)
 
   return 0;
 }
-#endif
 /*---------------------------------------------------------------------------*/
 int
 cfs_coffee_format(void)

core/cfs/cfs-posix-dir.c

@@ -36,6 +36,7 @@
 #include <dirent.h>
 #include <string.h>
 
+#define CFS_IMPL 1
 #include "cfs/cfs.h"
 
 struct cfs_posix_dir {

core/cfs/cfs-posix.c

@@ -40,6 +40,7 @@
 #include <unistd.h>
 #endif
 
+#define CFS_IMPL 1
 #include "cfs/cfs.h"
 
 /*---------------------------------------------------------------------------*/

core/contiki-default-conf.h

@@ -148,13 +148,6 @@
 #endif /* NBR_TABLE_FIND_REMOVABLE */
 #endif /* UIP_CONF_IPV6_RPL */
 
-/* RPL_CONF_MOP specifies the RPL mode of operation that will be
- * advertised by the RPL root. Possible values: RPL_MOP_NO_DOWNWARD_ROUTES,
- * RPL_MOP_NON_STORING, RPL_MOP_STORING_NO_MULTICAST, RPL_MOP_STORING_MULTICAST */
-#ifndef RPL_CONF_MOP
-#define RPL_CONF_MOP RPL_MOP_STORING_NO_MULTICAST
-#endif /* RPL_CONF_MOP */
-
 /* UIP_CONF_MAX_ROUTES specifies the maximum number of routes that each
    node will be able to handle. */
 #ifndef UIP_CONF_MAX_ROUTES
@@ -211,7 +204,7 @@
 #define UIP_CONF_ND6_SEND_RA (NETSTACK_CONF_WITH_IPV6 && !UIP_CONF_IPV6_RPL)
 #endif /* UIP_CONF_ND6_SEND_RA */
 
-/* UIP_CONF_ND6_SEND_NA enables standard IPv6 Neighbor Discovery Protocol.
+/* UIP_CONF_ND6_SEND_NS enables standard IPv6 Neighbor Discovery Protocol.
    We enable it by default when IPv6 is used without RPL.
    With RPL, the neighbor cache (link-local IPv6 <-> MAC address mapping)
    is fed whenever receiving DIO and DAO messages. This is always sufficient
@@ -221,9 +214,15 @@
    neighbor to us is weak, if DIO transmissions are suppressed (Trickle
    timer) or if the neighbor chooses not to transmit DIOs because it is
    a leaf node or for any reason. */
+#ifndef UIP_CONF_ND6_SEND_NS
+#define UIP_CONF_ND6_SEND_NS (NETSTACK_CONF_WITH_IPV6 && !UIP_CONF_IPV6_RPL)
+#endif /* UIP_CONF_ND6_SEND_NS */
+/* UIP_CONF_ND6_SEND_NA allows to still comply with NDP even if the host does
+   not perform NUD or DAD processes. By default it is activated so the host
+   can still communicate with a full NDP peer. */
 #ifndef UIP_CONF_ND6_SEND_NA
-#define UIP_CONF_ND6_SEND_NA (NETSTACK_CONF_WITH_IPV6 && !UIP_CONF_IPV6_RPL)
-#endif /* UIP_CONF_ND6_SEND_NA */
+#define UIP_CONF_ND6_SEND_NA (NETSTACK_CONF_WITH_IPV6)
+#endif /* UIP_CONF_ND6_SEND_NS */
 
 /*---------------------------------------------------------------------------*/
 /* 6lowpan configuration options.

core/dev/serial-line.c

@@ -47,6 +47,8 @@
 
 #define IGNORE_CHAR(c) (c == 0x0d)
 #define END 0x0a
+//#define IGNORE_CHAR(c) (c == 0x0a)
+//#define END 0x0d
 
 static struct ringbuf rxbuf;
 static uint8_t rxbuf_data[BUFSIZE];

core/dev/slip.c

@@ -81,7 +81,7 @@ enum {
  */
 
 static uint8_t state = STATE_TWOPACKETS;
-static uint16_t begin, end;
+static uint16_t begin, next_free;
 static uint8_t rxbuf[RX_BUFSIZE];
 static uint16_t pkt_end;		/* SLIP_END tracker. */
 
@@ -107,9 +107,6 @@ slip_send(void)
 
   ptr = &uip_buf[UIP_LLH_LEN];
   for(i = 0; i < uip_len; ++i) {
-    if(i == UIP_TCPIP_HLEN) {
-      ptr = (uint8_t *)uip_appdata;
-    }
     c = *ptr++;
     if(c == SLIP_END) {
       slip_arch_writeb(SLIP_ESC);
@@ -153,7 +150,7 @@ slip_write(const void *_ptr, int len)
 static void
 rxbuf_init(void)
 {
-  begin = end = pkt_end = 0;
+  begin = next_free = pkt_end = 0;
   state = STATE_OK;
 }
 /*---------------------------------------------------------------------------*/
@@ -161,10 +158,11 @@ rxbuf_init(void)
 static uint16_t
 slip_poll_handler(uint8_t *outbuf, uint16_t blen)
 {
+#ifdef SLIP_CONF_MICROSOFT_CHAT
   /* This is a hack and won't work across buffer edge! */
   if(rxbuf[begin] == 'C') {
     int i;
-    if(begin < end && (end - begin) >= 6
+    if(begin < next_free && (next_free - begin) >= 6
        && memcmp(&rxbuf[begin], "CLIENT", 6) == 0) {
       state = STATE_TWOPACKETS;	/* Interrupts do nothing. */
       memset(&rxbuf[begin], 0x0, 6);
@@ -177,12 +175,14 @@ slip_poll_handler(uint8_t *outbuf, uint16_t blen)
       return 0;
     }
   }
+#endif /* SLIP_CONF_MICROSOFT_CHAT */
+
 #ifdef SLIP_CONF_ANSWER_MAC_REQUEST
   else if(rxbuf[begin] == '?') { 
     /* Used by tapslip6 to request mac for auto configure */
     int i, j;
     char* hexchar = "0123456789abcdef";
-    if(begin < end && (end - begin) >= 2
+    if(begin < next_free && (next_free - begin) >= 2
        && rxbuf[begin + 1] == 'M') {
       state = STATE_TWOPACKETS; /* Interrupts do nothing. */
       rxbuf[begin] = 0;
@@ -210,37 +210,109 @@ slip_poll_handler(uint8_t *outbuf, uint16_t blen)
    */
   if(begin != pkt_end) {
     uint16_t len;
+    uint16_t cur_next_free;
+    uint16_t cur_ptr;
+    int esc = 0;
 
     if(begin < pkt_end) {
-      len = pkt_end - begin;
-      if(len > blen) {
-	len = 0;
-      } else {
-	memcpy(outbuf, &rxbuf[begin], len);
+      uint16_t i;
+      len = 0;
+      for(i = begin; i < pkt_end; ++i) {
+        if(len > blen) {
+          len = 0;
+          break;
+        }
+        if (esc) {
+          if(rxbuf[i] == SLIP_ESC_ESC) {
+            outbuf[len] = SLIP_ESC;
+            len++;
+          } else if(rxbuf[i] == SLIP_ESC_END) {
+            outbuf[len] = SLIP_END;
+            len++;
+          }
+          esc = 0;
+        } else if(rxbuf[i] == SLIP_ESC) {
+          esc = 1;
+        } else {
+          outbuf[len] = rxbuf[i];
+          len++;
+        }
       }
     } else {
-      len = (RX_BUFSIZE - begin) + (pkt_end - 0);
-      if(len > blen) {
-	len = 0;
-      } else {
-	unsigned i;
-	for(i = begin; i < RX_BUFSIZE; i++) {
-	  *outbuf++ = rxbuf[i];
-	}
-	for(i = 0; i < pkt_end; i++) {
-	  *outbuf++ = rxbuf[i];
-	}
+      uint16_t i;
+      len = 0;
+      for(i = begin; i < RX_BUFSIZE; ++i) {
+        if(len > blen) {
+          len = 0;
+          break;
+        }
+        if (esc) {
+          if(rxbuf[i] == SLIP_ESC_ESC) {
+            outbuf[len] = SLIP_ESC;
+            len++;
+          } else if(rxbuf[i] == SLIP_ESC_END) {
+            outbuf[len] = SLIP_END;
+            len++;
+          }
+          esc = 0;
+        } else if(rxbuf[i] == SLIP_ESC) {
+          esc = 1;
+        } else {
+          outbuf[len] = rxbuf[i];
+          len++;
+        }
+      }
+      for(i = 0; i < pkt_end; ++i) {
+        if(len > blen) {
+          len = 0;
+          break;
+        }
+        if (esc) {
+          if(rxbuf[i] == SLIP_ESC_ESC) {
+            outbuf[len] = SLIP_ESC;
+            len++;
+          } else if(rxbuf[i] == SLIP_ESC_END) {
+            outbuf[len] = SLIP_END;
+            len++;
+          }
+          esc = 0;
+        } else if(rxbuf[i] == SLIP_ESC) {
+          esc = 1;
+        } else {
+          outbuf[len] = rxbuf[i];
+          len++;
+        }
       }
     }
 
     /* Remove data from buffer together with the copied packet. */
-    begin = pkt_end;
-    if(state == STATE_TWOPACKETS) {
-      pkt_end = end;
-      state = STATE_OK;		/* Assume no bytes where lost! */
-      
-      /* One more packet is buffered, need to be polled again! */
-      process_poll(&slip_process);
+    pkt_end = pkt_end + 1;
+    if(pkt_end == RX_BUFSIZE) {
+      pkt_end = 0;
+    }
+    if(pkt_end != next_free) {
+      cur_next_free = next_free;
+      cur_ptr = pkt_end;
+      while(cur_ptr != cur_next_free) {
+        if(rxbuf[cur_ptr] == SLIP_END) {
+          uint16_t tmp_begin = pkt_end;
+          pkt_end = cur_ptr;
+          begin = tmp_begin;
+          /* One more packet is buffered, need to be polled again! */
+          process_poll(&slip_process);
+          break;
+        }
+        cur_ptr++;
+        if(cur_ptr == RX_BUFSIZE) {
+          cur_ptr = 0;
+        }
+      }
+      if(cur_ptr == cur_next_free) {
+        /* no more pending full packet found */
+        begin = pkt_end;
+      }
+    } else {
+      begin = pkt_end;
     }
     return len;
   }
@@ -316,77 +388,71 @@ PROCESS_THREAD(slip_process, ev, data)
 int
 slip_input_byte(unsigned char c)
 {
+  uint16_t cur_end;
   switch(state) {
   case STATE_RUBBISH:
     if(c == SLIP_END) {
       state = STATE_OK;
     }
     return 0;
-    
-  case STATE_TWOPACKETS:       /* Two packets are already buffered! */
-    return 0;
 
   case STATE_ESC:
-    if(c == SLIP_ESC_END) {
-      c = SLIP_END;
-    } else if(c == SLIP_ESC_ESC) {
-      c = SLIP_ESC;
-    } else {
+    if(c != SLIP_ESC_END && c != SLIP_ESC_ESC) {
       state = STATE_RUBBISH;
       SLIP_STATISTICS(slip_rubbish++);
-      end = pkt_end;		/* remove rubbish */
+      next_free = pkt_end;		/* remove rubbish */
       return 0;
     }
     state = STATE_OK;
     break;
+  }
 
-  case STATE_OK:
-    if(c == SLIP_ESC) {
-      state = STATE_ESC;
-      return 0;
-    } else if(c == SLIP_END) {
-	/*
-	 * We have a new packet, possibly of zero length.
-	 *
-	 * There may already be one packet buffered.
-	 */
-      if(end != pkt_end) {	/* Non zero length. */
-	if(begin == pkt_end) {	/* None buffered. */
-	  pkt_end = end;
-	} else {
-	  state = STATE_TWOPACKETS;
-	  SLIP_STATISTICS(slip_twopackets++);
-	}
-	process_poll(&slip_process);
-	return 1;
-      }
-      return 0;
-    }
-    break;
+  if(c == SLIP_ESC) {
+    state = STATE_ESC;
   }
 
   /* add_char: */
-  {
-    unsigned next;
-    next = end + 1;
-    if(next == RX_BUFSIZE) {
-      next = 0;
-    }
-    if(next == begin) {		/* rxbuf is full */
-      state = STATE_RUBBISH;
-      SLIP_STATISTICS(slip_overflow++);
-      end = pkt_end;		/* remove rubbish */
-      return 0;
-    }
-    rxbuf[end] = c;
-    end = next;
+  cur_end = next_free;
+  next_free = next_free + 1;
+  if(next_free == RX_BUFSIZE) {
+    next_free = 0;
   }
+  if(next_free == begin) {         /* rxbuf is full */
+    state = STATE_RUBBISH;
+    SLIP_STATISTICS(slip_overflow++);
+    next_free = pkt_end;            /* remove rubbish */
+    return 0;
+  }
+  rxbuf[cur_end] = c;
 
+#ifdef SLIP_CONF_MICROSOFT_CHAT
   /* There could be a separate poll routine for this. */
   if(c == 'T' && rxbuf[begin] == 'C') {
     process_poll(&slip_process);
     return 1;
   }
+#endif /* SLIP_CONF_MICROSOFT_CHAT */
+
+  if(c == SLIP_END) {
+    /*
+     * We have a new packet, possibly of zero length.
+     *
+     * There may already be one packet buffered.
+     */
+    if(cur_end != pkt_end) {	/* Non zero length. */
+      if(begin == pkt_end) {	/* None buffered. */
+        pkt_end = cur_end;
+      } else {
+        SLIP_STATISTICS(slip_twopackets++);
+      }
+      process_poll(&slip_process);
+      return 1;
+    } else {
+      /* Empty packet, reset the pointer */
+      next_free = cur_end;
+    }
+    return 0;
+  }
 
   return 0;
 }

core/lib/ringbufindex.c

@@ -83,7 +83,7 @@ ringbufindex_peek_put(const struct ringbufindex *r)
   if(((r->put_ptr - r->get_ptr) & r->mask) == r->mask) {
     return -1;
   }
-  return (r->put_ptr + 1) & r->mask;
+  return r->put_ptr;
 }
 /* Remove the first element and return its index */
 int
@@ -118,7 +118,7 @@ ringbufindex_peek_get(const struct ringbufindex *r)
      first one. If there are no bytes left, we return -1.
    */
   if(((r->put_ptr - r->get_ptr) & r->mask) > 0) {
-    return (r->get_ptr + 1) & r->mask;
+    return r->get_ptr;
   } else {
     return -1;
   }

core/lib/ringbufindex.h

@@ -48,25 +48,72 @@ struct ringbufindex {
   uint8_t put_ptr, get_ptr;
 };
 
-/* Initialize a ring buffer. The size must be a power of two */
+/**
+ * \brief Initialize a ring buffer. The size must be a power of two
+ * \param r Pointer to ringbufindex
+ * \param size Size of ring buffer
+ */
 void ringbufindex_init(struct ringbufindex *r, uint8_t size);
-/* Put one element to the ring buffer */
+
+/**
+ * \brief Put one element to the ring buffer
+ * \param r Pointer to ringbufindex
+ * \retval 0 Failure; the ring buffer is full
+ * \retval 1 Success; an element is added
+ */
 int ringbufindex_put(struct ringbufindex *r);
-/* Check if there is space to put an element.
- * Return the index where the next element is to be added */
+
+/**
+ * \brief Check if there is space to put an element.
+ * \param r Pinter to ringbufindex
+ * \retval >= 0 The index where the next element is to be added.
+ * \retval -1 Failure; the ring buffer is full
+ */
 int ringbufindex_peek_put(const struct ringbufindex *r);
-/* Remove the first element and return its index */
+
+/**
+ * \brief Remove the first element and return its index
+ * \param r Pinter to ringbufindex
+ * \retval >= 0 The index of the first element
+ * \retval -1 No element in the ring buffer
+ */
 int ringbufindex_get(struct ringbufindex *r);
-/* Return the index of the first element
- * (which will be removed if calling ringbufindex_peek) */
+
+/**
+ * \brief Return the index of the first element which will be removed if calling
+ *        ringbufindex_get.
+ * \param r Pinter to ringbufindex
+ * \retval >= 0 The index of the first element
+ * \retval -1 No element in the ring buffer
+ */
 int ringbufindex_peek_get(const struct ringbufindex *r);
-/* Return the ring buffer size */
+
+/**
+ * \brief Return the ring buffer size
+ * \param r Pinter to ringbufindex
+ * \return The size of the ring buffer
+ */
 int ringbufindex_size(const struct ringbufindex *r);
-/* Return the number of elements currently in the ring buffer */
+
+/**
+ * \brief Return the number of elements currently in the ring buffer.
+ * \param r Pinter to ringbufindex
+ * \return The number of elements in the ring buffer
+ */
 int ringbufindex_elements(const struct ringbufindex *r);
-/* Is the ring buffer full? */
+
+/**
+ * \brief Is the ring buffer full?
+ * \retval 0 Not full
+ * \retval 1 Full
+ */
 int ringbufindex_full(const struct ringbufindex *r);
-/* Is the ring buffer empty? */
+
+/**
+ * \brief Is the ring buffer empty?
+ * \retval 0 Not empty
+ * \retval 1 Empty
+ */
 int ringbufindex_empty(const struct ringbufindex *r);
 
 #endif /* __RINGBUFINDEX_H__ */

core/lib/settings.h

@@ -130,7 +130,7 @@ typedef uint16_t settings_length_t;
 
 #define SETTINGS_KEY_RDC_INDEX     TCC('R','D') /*!< RDC index, uint8_t */
 #define SETTINGS_KEY_CHANNEL_MASK  TCC('C','M') /*!< Channel mask, uint16_t */
-
+#define SETTINGS_KEY_MAC_CONF      TCC('M','C') /*!< MAC Layer Config, uint8_t */
 /*****************************************************************************/
 // MARK: - Constants
 

core/net/ip/ip64-addr.c

@@ -35,6 +35,10 @@
 #include <string.h>
 
 #define printf(...)
+
+static uip_ip6addr_t ip64_prefix = {{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0}};
+static uint8_t ip64_prefix_len = 96;
+
 /*---------------------------------------------------------------------------*/
 void
 ip64_addr_copy4(uip_ip4addr_t *dest, const uip_ip4addr_t *src)
@@ -56,20 +60,7 @@ ip64_addr_4to6(const uip_ip4addr_t *ipv4addr,
      addresses. It returns 0 if it failed to convert the address and
      non-zero if it could successfully convert the address. */
 
-  /* The IPv4 address is encoded as an IPv6-encoded IPv4 address in
-     the ::ffff:0000/24 prefix.*/
-  ipv6addr->u8[0] = 0;
-  ipv6addr->u8[1] = 0;
-  ipv6addr->u8[2] = 0;
-  ipv6addr->u8[3] = 0;
-  ipv6addr->u8[4] = 0;
-  ipv6addr->u8[5] = 0;
-  ipv6addr->u8[6] = 0;
-  ipv6addr->u8[7] = 0;
-  ipv6addr->u8[8] = 0;
-  ipv6addr->u8[9] = 0;
-  ipv6addr->u8[10] = 0xff;
-  ipv6addr->u8[11] = 0xff;
+  uip_ipaddr_copy(ipv6addr, &ip64_prefix);
   ipv6addr->u8[12] = ipv4addr->u8[0];
   ipv6addr->u8[13] = ipv4addr->u8[1];
   ipv6addr->u8[14] = ipv4addr->u8[2];
@@ -90,21 +81,7 @@ ip64_addr_6to4(const uip_ip6addr_t *ipv6addr,
      returns 0 if it failed to convert the address and non-zero if it
      could successfully convert the address. */
 
-  /* If the IPv6 address is an IPv6-encoded
-     IPv4 address (i.e. in the ::ffff:0/8 prefix), we simply use the
-     IPv4 addresses directly. */
-  if(ipv6addr->u8[0] == 0 &&
-     ipv6addr->u8[1] == 0 &&
-     ipv6addr->u8[2] == 0 &&
-     ipv6addr->u8[3] == 0 &&
-     ipv6addr->u8[4] == 0 &&
-     ipv6addr->u8[5] == 0 &&
-     ipv6addr->u8[6] == 0 &&
-     ipv6addr->u8[7] == 0 &&
-     ipv6addr->u8[8] == 0 &&
-     ipv6addr->u8[9] == 0 &&
-     ipv6addr->u8[10] == 0xff &&
-     ipv6addr->u8[11] == 0xff) {
+  if(ip64_addr_is_ip64(ipv6addr)) {
     ipv4addr->u8[0] = ipv6addr->u8[12];
     ipv4addr->u8[1] = ipv6addr->u8[13];
     ipv4addr->u8[2] = ipv6addr->u8[14];
@@ -121,3 +98,16 @@ ip64_addr_6to4(const uip_ip6addr_t *ipv6addr,
   return 0;
 }
 /*---------------------------------------------------------------------------*/
+int
+ip64_addr_is_ip64(const uip_ip6addr_t *ipv6addr)
+{
+  return uip_ipaddr_prefixcmp(ipv6addr, &ip64_prefix, ip64_prefix_len);
+}
+/*---------------------------------------------------------------------------*/
+void
+ip64_addr_set_prefix(const uip_ip6addr_t *prefix, uint8_t prefix_len)
+{
+  uip_ipaddr_copy(&ip64_prefix, prefix);
+  ip64_prefix_len = prefix_len;
+}
+/*---------------------------------------------------------------------------*/

core/net/ip/ip64-addr.h

@@ -58,6 +58,9 @@ int ip64_addr_6to4(const uip_ip6addr_t *ipv6addr,
 int ip64_addr_4to6(const uip_ip4addr_t *ipv4addr,
 		   uip_ip6addr_t *ipv6addr);
 
+int ip64_addr_is_ip64(const uip_ip6addr_t *ipv6addr);
+
+void ip64_addr_set_prefix(const uip_ip6addr_t *prefix, uint8_t prefix_len);
 
 #endif /* IP64_ADDR_H */
 

core/net/ip/resolv.c

@@ -1094,7 +1094,7 @@ resolv_set_hostname(const char *hostname)
   /* Add the .local suffix if it isn't already there */
   if(strlen(resolv_hostname) < 7 ||
      strcasecmp(resolv_hostname + strlen(resolv_hostname) - 6, ".local") != 0) {
-    strncat(resolv_hostname, ".local", RESOLV_CONF_MAX_DOMAIN_NAME_SIZE);
+    strncat(resolv_hostname, ".local", RESOLV_CONF_MAX_DOMAIN_NAME_SIZE - strlen(resolv_hostname));
   }
 
   PRINTF("resolver: hostname changed to \"%s\"\n", resolv_hostname);
@@ -1248,8 +1248,8 @@ remove_trailing_dots(const char *name) {
   static char dns_name_without_dots[RESOLV_CONF_MAX_DOMAIN_NAME_SIZE + 1];
   size_t len = strlen(name);
 
-  if(name[len - 1] == '.') {
-    strncpy(dns_name_without_dots, name, sizeof(dns_name_without_dots));
+  if(len && name[len - 1] == '.') {
+    strncpy(dns_name_without_dots, name, RESOLV_CONF_MAX_DOMAIN_NAME_SIZE);
     while(len && (dns_name_without_dots[len - 1] == '.')) {
       dns_name_without_dots[--len] = 0;
     }
@@ -1309,7 +1309,7 @@ resolv_query(const char *name)
 
   memset(nameptr, 0, sizeof(*nameptr));
 
-  strncpy(nameptr->name, name, sizeof(nameptr->name));
+  strncpy(nameptr->name, name, sizeof(nameptr->name) - 1);
   nameptr->state = STATE_NEW;
   nameptr->seqno = seqno;
   ++seqno;
@@ -1479,7 +1479,7 @@ resolv_found(char *name, uip_ipaddr_t * ipaddr)
       }
 
       /* Re-add the .local suffix */
-      strncat(resolv_hostname, ".local", RESOLV_CONF_MAX_DOMAIN_NAME_SIZE);
+      strncat(resolv_hostname, ".local", RESOLV_CONF_MAX_DOMAIN_NAME_SIZE - strlen(resolv_hostname));
 
       start_name_collision_check(CLOCK_SECOND * 5);
     } else if(mdns_state == MDNS_STATE_READY) {

core/net/ip/slipdev.c

@@ -102,9 +102,6 @@ slipdev_send(void)
 
   ptr = &uip_buf[UIP_LLH_LEN];
   for(i = 0; i < uip_len; ++i) {
-    if(i == UIP_TCPIP_HLEN) {
-      ptr = (uint8_t *)uip_appdata;
-    }
     c = *ptr++;
     switch(c) {
     case SLIP_END:

core/net/ip/tcp-socket.c

@@ -29,6 +29,9 @@
  *
  */
 
+#define DEBUG DEBUG_NONE
+#include "net/ip/uip-debug.h"
+
 #include "contiki.h"
 #include "sys/cc.h"
 #include "contiki-net.h"
@@ -37,10 +40,8 @@
 
 #include "tcp-socket.h"
 
-#include <stdio.h>
 #include <string.h>
 
-
 static void relisten(struct tcp_socket *s);
 
 LIST(socketlist);
@@ -80,7 +81,7 @@ acked(struct tcp_socket *s)
              s->output_data_maxlen - s->output_data_send_nxt);
     }
     if(s->output_data_len < s->output_data_send_nxt) {
-      printf("tcp: acked assertion failed s->output_data_len (%d) < s->output_data_send_nxt (%d)\n",
+      PRINTF("tcp: acked assertion failed s->output_data_len (%d) < s->output_data_send_nxt (%d)\n",
              s->output_data_len,
              s->output_data_send_nxt);
       tcp_markconn(uip_conn, NULL);
@@ -121,7 +122,7 @@ newdata(struct tcp_socket *s)
       bytesleft = 0;
     }
     if(bytesleft > 0) {
-      printf("tcp: newdata, bytesleft > 0 (%d) not implemented\n", bytesleft);
+      PRINTF("tcp: newdata, bytesleft > 0 (%d) not implemented\n", bytesleft);
     }
     dataptr += copylen;
     len -= copylen;
@@ -356,6 +357,8 @@ tcp_socket_send(struct tcp_socket *s,
     s->output_senddata_len = s->output_data_len;
   }
 
+  tcpip_poll_tcp(s->c);
+
   return len;
 }
 /*---------------------------------------------------------------------------*/
@@ -398,3 +401,9 @@ tcp_socket_max_sendlen(struct tcp_socket *s)
   return s->output_data_maxlen - s->output_data_len;
 }
 /*---------------------------------------------------------------------------*/
+int
+tcp_socket_queuelen(struct tcp_socket *s)
+{
+  return s->output_data_len;
+}
+/*---------------------------------------------------------------------------*/

core/net/ip/tcp-socket.h

@@ -284,4 +284,16 @@ int tcp_socket_unregister(struct tcp_socket *s);
  */
 int tcp_socket_max_sendlen(struct tcp_socket *s);
 
+/**
+ * \brief      The number of bytes waiting to be sent
+ * \param s    A pointer to a TCP socket
+ * \return     The number of bytes that have not yet been acknowledged by the receiver.
+ *
+ *             This function queries the TCP socket and returns the
+ *             number of bytes that are currently not yet known to
+ *             have been successfully received by the receiver.
+ *
+ */
+int tcp_socket_queuelen(struct tcp_socket *s);
+
 #endif /* TCP_SOCKET_H */

core/net/ip/tcpip.c

@@ -548,6 +548,15 @@ tcpip_ipv6_output(void)
     return;
   }
 
+#if UIP_CONF_IPV6_RPL
+  if(!rpl_update_header()) {
+    /* Packet can not be forwarded */
+    PRINTF("tcpip_ipv6_output: RPL header update error\n");
+    uip_clear_buf();
+    return;
+  }
+#endif /* UIP_CONF_IPV6_RPL */
+
   if(!uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
     /* Next hop determination */
 
@@ -651,15 +660,9 @@ tcpip_ipv6_output(void)
 
     /* End of next hop determination */
 
-#if UIP_CONF_IPV6_RPL
-    if(!rpl_finalize_header(nexthop)) {
-      uip_clear_buf();
-      return;
-    }
-#endif /* UIP_CONF_IPV6_RPL */
     nbr = uip_ds6_nbr_lookup(nexthop);
     if(nbr == NULL) {
-#if UIP_ND6_SEND_NA
+#if UIP_ND6_SEND_NS
       if((nbr = uip_ds6_nbr_add(nexthop, NULL, 0, NBR_INCOMPLETE, NBR_TABLE_REASON_IPV6_ND, NULL)) == NULL) {
         uip_clear_buf();
         PRINTF("tcpip_ipv6_output: failed to add neighbor to cache\n");
@@ -688,13 +691,13 @@ tcpip_ipv6_output(void)
         nbr->nscount = 1;
         /* Send the first NS try from here (multicast destination IP address). */
       }
-#else /* UIP_ND6_SEND_NA */
+#else /* UIP_ND6_SEND_NS */
       PRINTF("tcpip_ipv6_output: neighbor not in cache\n");
       uip_len = 0;
       return;  
-#endif /* UIP_ND6_SEND_NA */
+#endif /* UIP_ND6_SEND_NS */
     } else {
-#if UIP_ND6_SEND_NA
+#if UIP_ND6_SEND_NS
       if(nbr->state == NBR_INCOMPLETE) {
         PRINTF("tcpip_ipv6_output: nbr cache entry incomplete\n");
 #if UIP_CONF_IPV6_QUEUE_PKT
@@ -716,7 +719,7 @@ tcpip_ipv6_output(void)
         nbr->nscount = 0;
         PRINTF("tcpip_ipv6_output: nbr cache entry stale moving to delay\n");
       }
-#endif /* UIP_ND6_SEND_NA */
+#endif /* UIP_ND6_SEND_NS */
 
       tcpip_output(uip_ds6_nbr_get_ll(nbr));
 

core/net/ip/uip-debug.c

@@ -56,7 +56,7 @@ uip_debug_ipaddr_print(const uip_ipaddr_t *addr)
 #if NETSTACK_CONF_WITH_IPV6
   if(ip64_addr_is_ipv4_mapped_addr(addr)) {
     /*
-     * Printing IPv4-mapped addresses is done according to RFC 3513 [1]
+     * Printing IPv4-mapped addresses is done according to RFC 4291 [1]
      *
      *     "An alternative form that is sometimes more
      *     convenient when dealing with a mixed environment
@@ -67,7 +67,7 @@ uip_debug_ipaddr_print(const uip_ipaddr_t *addr)
      *     low-order 8-bit pieces of the address (standard
      *     IPv4 representation)."
      *
-     * [1] https://tools.ietf.org/html/rfc3513#page-5
+     * [1] https://tools.ietf.org/html/rfc4291#page-4
      */
     PRINTA("::FFFF:%u.%u.%u.%u", addr->u8[12], addr->u8[13], addr->u8[14], addr->u8[15]);
   } else {

core/net/ip/uip.h

@@ -490,26 +490,8 @@ void uip_reass_over(void);
  *
  * The uip_aligned_buf array is used to hold incoming and outgoing
  * packets. The device driver should place incoming data into this
- * buffer. When sending data, the device driver should read the link
- * level headers and the TCP/IP headers from this buffer. The size of
- * the link level headers is configured by the UIP_LLH_LEN define.
- *
- * \note The application data need not be placed in this buffer, so
- * the device driver must read it from the place pointed to by the
- * uip_appdata pointer as illustrated by the following example:
- \code
- void
- devicedriver_send(void)
- {
- hwsend(&uip_buf[0], UIP_LLH_LEN);
- if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
- hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
- } else {
- hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
- hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
- }
- }
- \endcode
+ * buffer. When sending data, the device driver should read the
+ * outgoing data from this buffer.
 */
 
 typedef union {
@@ -2012,7 +1994,7 @@ CCIF extern uip_lladdr_t uip_lladdr;
    (((a)->u8[15]) == 0x02))
 
 /**
- * \brief is addr (a) a link local unicast address, see RFC3513
+ * \brief is addr (a) a link local unicast address, see RFC 4291
  *  i.e. is (a) on prefix FE80::/10
  *  a is of type uip_ipaddr_t*
  */
@@ -2036,7 +2018,7 @@ CCIF extern uip_lladdr_t uip_lladdr;
   } while(0)
 
 /**
- * \brief  is addr (a) a solicited node multicast address, see RFC3513
+ * \brief  is addr (a) a solicited node multicast address, see RFC 4291
  *  a is of type uip_ipaddr_t*
  */
 #define uip_is_addr_solicited_node(a)          \
@@ -2097,7 +2079,7 @@ CCIF extern uip_lladdr_t uip_lladdr;
 #endif /*UIP_CONF_LL_802154*/
 
 /**
- * \brief is address a multicast address, see RFC 3513
+ * \brief is address a multicast address, see RFC 4291
  * a is of type uip_ipaddr_t*
  * */
 #define uip_is_addr_mcast(a)                    \

core/net/ip/uip_arch.h

@@ -120,10 +120,6 @@ uint16_t uip_ipchksum(void);
  * The TCP checksum is the Internet checksum of data contents of the
  * TCP segment, and a pseudo-header as defined in RFC793.
  *
- * \note The uip_appdata pointer that points to the packet data may
- * point anywhere in memory, so it is not possible to simply calculate
- * the Internet checksum of the contents of the uip_buf buffer.
- *
  * \return The TCP checksum of the TCP segment in uip_buf and pointed
  * to by uip_appdata.
  */

core/net/ip64/ip64-dhcpc.c

@@ -163,7 +163,6 @@ create_msg(CC_REGISTER_ARG struct dhcp_msg *m)
   memset(&m->chaddr[s.mac_len], 0, sizeof(m->chaddr) - s.mac_len);
 
   memset(m->sname, 0, sizeof(m->sname));
-  strcpy((char *)m->sname, "Thingsquare");
   memset(m->file, 0, sizeof(m->file));
 
 

core/net/ip64/ip64-ipv4-dhcp.c

@@ -39,6 +39,9 @@
 
 #include <stdio.h>
 
+#define DEBUG DEBUG_NONE
+#include "net/ip/uip-debug.h"
+
 PROCESS(ip64_ipv4_dhcp_process, "IPv4 DHCP");
 
 uip_ipaddr_t uip_hostaddr; /* Needed because it is referenced by dhcpc.c */
@@ -48,7 +51,7 @@ uip_ipaddr_t uip_hostaddr; /* Needed because it is referenced by dhcpc.c */
 void
 ip64_ipv4_dhcp_init(void)
 {
-  printf("Starting DHCPv4\n");
+  printf("IP64: Starting DHCPv4\n");
   process_start(&ip64_ipv4_dhcp_process, NULL);
 }
 /*---------------------------------------------------------------------------*/
@@ -58,10 +61,10 @@ PROCESS_THREAD(ip64_ipv4_dhcp_process, ev, data)
 
   ip64_dhcpc_init(&ip64_eth_addr, sizeof(ip64_eth_addr));
 
-  printf("Inited\n");
+  PRINTF("IP64: Inited\n");
 
   ip64_dhcpc_request();
-  printf("Requested\n");
+  PRINTF("IP64: Requested\n");
   while(1) {
     PROCESS_WAIT_EVENT();
 
@@ -78,15 +81,22 @@ void
 ip64_dhcpc_configured(const struct ip64_dhcpc_state *s)
 {
   uip_ip6addr_t ip6dnsaddr;
-  printf("DHCP Configured with %d.%d.%d.%d\n",
+  PRINTF("IP64: DHCP Configured with %d.%d.%d.%d\n",
 	 s->ipaddr.u8[0], s->ipaddr.u8[1],
 	 s->ipaddr.u8[2], s->ipaddr.u8[3]);
 
   ip64_set_hostaddr((uip_ip4addr_t *)&s->ipaddr);
   ip64_set_netmask((uip_ip4addr_t *)&s->netmask);
   ip64_set_draddr((uip_ip4addr_t *)&s->default_router);
-  ip64_addr_4to6((uip_ip4addr_t *)&s->dnsaddr, &ip6dnsaddr);
-  //  mdns_conf(&ip6dnsaddr);
+  if(!uip_ip4addr_cmp((uip_ip4addr_t *)&s->dnsaddr, &uip_all_zeroes_addr)) {
+    /* Note: Currently we assume only one DNS server */
+    uip_ipaddr_t * dns = uip_nameserver_get(0);
+    /* Only update DNS entry if it is empty or already IPv4 */
+    if(uip_is_addr_unspecified(dns) || ip64_addr_is_ip64(dns)) {
+      ip64_addr_4to6((uip_ip4addr_t *)&s->dnsaddr, &ip6dnsaddr);
+      uip_nameserver_update(&ip6dnsaddr, uip_ntohs(s->lease_time[0])*65536ul + uip_ntohs(s->lease_time[1]));
+    }
+  }
 }
 /*---------------------------------------------------------------------------*/
 void

core/net/ipv6/multicast/README.md

@@ -7,8 +7,14 @@ What does it do
 These files, alongside some core modifications, add support for IPv6 multicast
 to contiki's uIPv6 engine.
 
-Currently, two modes are supported:
+Currently, three modes are supported:
 
+* 'Enhanced Stateless Multicast RPL Forwarding' (ESMRF)
+    ESMRF is an enhanced version of the SMRF engine with the aim 
+    of resolving the sending limitation of SMRF to allow any node 
+    within the DODAG to send multicast traffic up and down the RPL tree.
+    ESMRF is documented here:
+    http://dl.acm.org/citation.cfm?id=2753479
 * 'Stateless Multicast RPL Forwarding' (SMRF)
     RPL in MOP 3 handles group management as per the RPL docs,
     SMRF is a lightweight engine which handles datagram forwarding.

core/net/ipv6/multicast/uip-mcast6.h

@@ -162,7 +162,7 @@ struct uip_mcast6_driver {
 #define UIP_MCAST6             smrf_driver
 
 #elif UIP_MCAST6_ENGINE == UIP_MCAST6_ENGINE_ESMRF
-#define RPL_CONF_MULTICAST     1
+#define RPL_WITH_MULTICAST     1
 #define UIP_MCAST6             esmrf_driver
 
 #else

core/net/ipv6/uip-ds6-nbr.c

@@ -88,19 +88,23 @@ uip_ds6_nbr_add(const uip_ipaddr_t *ipaddr, const uip_lladdr_t *lladdr,
                                             , reason, data);
   if(nbr) {
     uip_ipaddr_copy(&nbr->ipaddr, ipaddr);
-#if UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER
+#if UIP_ND6_SEND_RA || !UIP_CONF_ROUTER
     nbr->isrouter = isrouter;
-#endif /* UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER */
+#endif /* UIP_ND6_SEND_RA || !UIP_CONF_ROUTER */
     nbr->state = state;
 #if UIP_CONF_IPV6_QUEUE_PKT
     uip_packetqueue_new(&nbr->packethandle);
 #endif /* UIP_CONF_IPV6_QUEUE_PKT */
-#if UIP_ND6_SEND_NA
-    /* timers are set separately, for now we put them in expired state */
-    stimer_set(&nbr->reachable, 0);
+#if UIP_ND6_SEND_NS
+    if(nbr->state == NBR_REACHABLE) {
+      stimer_set(&nbr->reachable, UIP_ND6_REACHABLE_TIME / 1000);
+    } else {
+      /* We set the timer in expired state */
+      stimer_set(&nbr->reachable, 0);
+    }
     stimer_set(&nbr->sendns, 0);
     nbr->nscount = 0;
-#endif /* UIP_ND6_SEND_NA */
+#endif /* UIP_ND6_SEND_NS */
     PRINTF("Adding neighbor with ip addr ");
     PRINT6ADDR(ipaddr);
     PRINTF(" link addr ");
@@ -241,7 +245,7 @@ uip_ds6_link_neighbor_callback(int status, int numtx)
 #endif /* UIP_DS6_LL_NUD */
 
 }
-#if UIP_ND6_SEND_NA
+#if UIP_ND6_SEND_NS
 /*---------------------------------------------------------------------------*/
 /** Periodic processing on neighbors */
 void
@@ -322,6 +326,18 @@ uip_ds6_neighbor_periodic(void)
   }
 }
 /*---------------------------------------------------------------------------*/
+void
+uip_ds6_nbr_refresh_reachable_state(const uip_ipaddr_t *ipaddr)
+{
+  uip_ds6_nbr_t *nbr;
+  nbr = uip_ds6_nbr_lookup(ipaddr);
+  if(nbr != NULL) {
+    nbr->state = NBR_REACHABLE;
+    nbr->nscount = 0;
+    stimer_set(&nbr->reachable, UIP_ND6_REACHABLE_TIME / 1000);
+  }
+}
+/*---------------------------------------------------------------------------*/
 uip_ds6_nbr_t *
 uip_ds6_get_least_lifetime_neighbor(void)
 {
@@ -340,6 +356,6 @@ uip_ds6_get_least_lifetime_neighbor(void)
   }
   return nbr_expiring;
 }
-#endif /* UIP_ND6_SEND_NA */
+#endif /* UIP_ND6_SEND_NS */
 /*---------------------------------------------------------------------------*/
 /** @} */

core/net/ipv6/uip-ds6-nbr.h

@@ -50,8 +50,6 @@
 #include "net/nbr-table.h"
 #include "sys/stimer.h"
 #include "net/ipv6/uip-ds6.h"
-#include "net/nbr-table.h"
-
 #if UIP_CONF_IPV6_QUEUE_PKT
 #include "net/ip/uip-packetqueue.h"
 #endif                          /*UIP_CONF_QUEUE_PKT */
@@ -71,11 +69,11 @@ typedef struct uip_ds6_nbr {
   uip_ipaddr_t ipaddr;
   uint8_t isrouter;
   uint8_t state;
-#if UIP_ND6_SEND_NA || UIP_ND6_SEND_RA
+#if UIP_ND6_SEND_NS || UIP_ND6_SEND_RA
   struct stimer reachable;
   struct stimer sendns;
   uint8_t nscount;
-#endif /* UIP_ND6_SEND_NA || UIP_ND6_SEND_RA */
+#endif /* UIP_ND6_SEND_NS || UIP_ND6_SEND_RA */
 #if UIP_CONF_IPV6_QUEUE_PKT
   struct uip_packetqueue_handle packethandle;
 #define UIP_DS6_NBR_PACKET_LIFETIME CLOCK_SECOND * 4
@@ -100,6 +98,17 @@ void uip_ds6_link_neighbor_callback(int status, int numtx);
 void uip_ds6_neighbor_periodic(void);
 int uip_ds6_nbr_num(void);
 
+#if UIP_ND6_SEND_NS
+/**
+ * \brief Refresh the reachable state of a neighbor. This function
+ * may be called when a node receives an IPv6 message that confirms the
+ * reachability of a neighbor.
+ * \param ipaddr pointer to the IPv6 address whose neighbor reachability state
+ * should be refreshed.
+ */
+void uip_ds6_nbr_refresh_reachable_state(const uip_ipaddr_t *ipaddr);
+#endif /* UIP_ND6_SEND_NS */
+
 /**
  * \brief
  *    This searches inside the neighbor table for the neighbor that is about to

core/net/ipv6/uip-ds6-route.c

@@ -573,6 +573,12 @@ uip_ds6_route_rm_by_nexthop(uip_ipaddr_t *nexthop)
 }
 /*---------------------------------------------------------------------------*/
 uip_ds6_defrt_t *
+uip_ds6_defrt_head(void)
+{
+  return list_head(defaultrouterlist);
+}
+/*---------------------------------------------------------------------------*/
+uip_ds6_defrt_t *
 uip_ds6_defrt_add(uip_ipaddr_t *ipaddr, unsigned long interval)
 {
   uip_ds6_defrt_t *d;

core/net/ipv6/uip-ds6-route.h

@@ -82,14 +82,10 @@ void uip_ds6_notification_rm(struct uip_ds6_notification *n);
 #endif
 
 /* Routing table */
-#ifndef UIP_CONF_MAX_ROUTES
-#ifdef UIP_CONF_DS6_ROUTE_NBU
-#define UIP_DS6_ROUTE_NB UIP_CONF_DS6_ROUTE_NBU
-#else /* UIP_CONF_DS6_ROUTE_NBU */
-#define UIP_DS6_ROUTE_NB 4
-#endif /* UIP_CONF_DS6_ROUTE_NBU */
-#else /* UIP_CONF_MAX_ROUTES */
+#ifdef UIP_CONF_MAX_ROUTES
 #define UIP_DS6_ROUTE_NB UIP_CONF_MAX_ROUTES
+#else /* UIP_CONF_MAX_ROUTES */
+#define UIP_DS6_ROUTE_NB 4
 #endif /* UIP_CONF_MAX_ROUTES */
 
 /** \brief define some additional RPL related route state and
@@ -181,6 +177,7 @@ typedef struct uip_ds6_defrt {
 
 /** \name Default router list basic routines */
 /** @{ */
+uip_ds6_defrt_t *uip_ds6_defrt_head(void);
 uip_ds6_defrt_t *uip_ds6_defrt_add(uip_ipaddr_t *ipaddr,
                                    unsigned long interval);
 void uip_ds6_defrt_rm(uip_ds6_defrt_t *defrt);

core/net/ipv6/uip-ds6.c

@@ -187,9 +187,9 @@ uip_ds6_periodic(void)
   }
 #endif /* !UIP_CONF_ROUTER */
 
-#if UIP_ND6_SEND_NA
+#if UIP_ND6_SEND_NS
   uip_ds6_neighbor_periodic();
-#endif /* UIP_ND6_SEND_RA */
+#endif /* UIP_ND6_SEND_NS */
 
 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA
   /* Periodic RA sending */

core/net/ipv6/uip-ds6.h

@@ -56,6 +56,8 @@
  * - the number of elements requested by the user in contiki configuration (name suffixed by _NBU)
  * - the number of elements assigned by the system (name suffixed by _NBS)
  * - the total number of elements is the sum (name suffixed by _NB)
+ * The routing table definitions can be found in uip-ds6-route.h
+ * The Neighbor cache definitions can be found in nbr-table.h
 */
 
 /* Default router list */

core/net/ipv6/uip-icmp6.c

@@ -160,11 +160,6 @@ echo_request_input(void)
     uip_ext_len = 0;
   }
 
-  /* Insert RPL extension headers */
-#if UIP_CONF_IPV6_RPL
-  rpl_insert_header();
-#endif /* UIP_CONF_IPV6_RPL */
-
   /* Below is important for the correctness of UIP_ICMP_BUF and the
    * checksum
    */
@@ -260,10 +255,6 @@ uip_icmp6_error_output(uint8_t type, uint8_t code, uint32_t param) {
   UIP_ICMP_BUF->icmpchksum = 0;
   UIP_ICMP_BUF->icmpchksum = ~uip_icmp6chksum();
 
-#if UIP_CONF_IPV6_RPL
-  rpl_insert_header();
-#endif /* UIP_CONF_IPV6_RPL */
-
   UIP_STAT(++uip_stat.icmp.sent);
 
   PRINTF("Sending ICMPv6 ERROR message type %d code %d to ", type, code);
@@ -301,9 +292,6 @@ uip_icmp6_send(const uip_ipaddr_t *dest, int type, int code, int payload_len)
   UIP_STAT(++uip_stat.icmp.sent);
   UIP_STAT(++uip_stat.ip.sent);
 
-#if UIP_CONF_IPV6_RPL
-  rpl_insert_header();
-#endif /* UIP_CONF_IPV6_RPL */
   tcpip_ipv6_output();
 }
 /*---------------------------------------------------------------------------*/

core/net/ipv6/uip-nd6.c

@@ -116,13 +116,16 @@ void uip_log(char *msg);
 #define UIP_ND6_OPT_RDNSS_BUF ((uip_nd6_opt_dns *)&uip_buf[uip_l2_l3_icmp_hdr_len + nd6_opt_offset])
 /** @} */
 
-#if UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER
+#if UIP_ND6_SEND_NS || UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER
 static uint8_t nd6_opt_offset;                     /** Offset from the end of the icmpv6 header to the option in uip_buf*/
 static uint8_t *nd6_opt_llao;   /**  Pointer to llao option in uip_buf */
 static uip_ds6_nbr_t *nbr; /**  Pointer to a nbr cache entry*/
-static uip_ds6_defrt_t *defrt; /**  Pointer to a router list entry */
 static uip_ds6_addr_t *addr; /**  Pointer to an interface address */
-#endif /* UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER */
+#endif /* UIP_ND6_SEND_NS || UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER */
+
+#if UIP_ND6_SEND_NS || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER
+static uip_ds6_defrt_t *defrt; /**  Pointer to a router list entry */
+#endif /* UIP_ND6_SEND_NS || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER */
 
 #if !UIP_CONF_ROUTER            // TBD see if we move it to ra_input
 static uip_nd6_opt_prefix_info *nd6_opt_prefix_info; /**  Pointer to prefix information option in uip_buf */
@@ -157,7 +160,27 @@ create_llao(uint8_t *llao, uint8_t type) {
 }
 
 /*------------------------------------------------------------------*/
-
+ /**
+ * Neighbor Solicitation Processing
+ *
+ * The NS can be received in 3 cases (procedures):
+ * - sender is performing DAD (ip src = unspecified, no SLLAO option)
+ * - sender is performing NUD (ip dst = unicast)
+ * - sender is performing address resolution (ip dest = solicited node mcast
+ * address)
+ *
+ * We do:
+ * - if the tgt belongs to me, reply, otherwise ignore
+ * - if i was performing DAD for the same address, two cases:
+ * -- I already sent a NS, hence I win
+ * -- I did not send a NS yet, hence I lose
+ *
+ * If we need to send a NA in response (i.e. the NS was done for NUD, or
+ * address resolution, or DAD and there is a conflict), we do it in this
+ * function: set src, dst, tgt address in the three cases, then for all cases
+ * set the rest, including  SLLAO
+ *
+ */
 #if UIP_ND6_SEND_NA
 static void
 ns_input(void)
@@ -238,9 +261,9 @@ ns_input(void)
 
   addr = uip_ds6_addr_lookup(&UIP_ND6_NS_BUF->tgtipaddr);
   if(addr != NULL) {
-#if UIP_ND6_DEF_MAXDADNS > 0
     if(uip_is_addr_unspecified(&UIP_IP_BUF->srcipaddr)) {
       /* DAD CASE */
+#if UIP_ND6_DEF_MAXDADNS > 0
 #if UIP_CONF_IPV6_CHECKS
       if(!uip_is_addr_solicited_node(&UIP_IP_BUF->destipaddr)) {
         PRINTF("NS received is bad\n");
@@ -258,9 +281,7 @@ ns_input(void)
         goto discard;
       }
 #else /* UIP_ND6_DEF_MAXDADNS > 0 */
-    if(uip_is_addr_unspecified(&UIP_IP_BUF->srcipaddr)) {
-      /* DAD CASE */
-      goto discard;
+      goto discard;  /* DAD CASE */
 #endif /* UIP_ND6_DEF_MAXDADNS > 0 */
     }
 #if UIP_CONF_IPV6_CHECKS
@@ -348,6 +369,7 @@ discard:
 
 
 /*------------------------------------------------------------------*/
+#if UIP_ND6_SEND_NS
 void
 uip_nd6_ns_output(uip_ipaddr_t * src, uip_ipaddr_t * dest, uip_ipaddr_t * tgt)
 {
@@ -410,7 +432,9 @@ uip_nd6_ns_output(uip_ipaddr_t * src, uip_ipaddr_t * dest, uip_ipaddr_t * tgt)
   PRINTF("\n");
   return;
 }
-#if UIP_ND6_SEND_NA
+#endif /* UIP_ND6_SEND_NS */
+
+#if UIP_ND6_SEND_NS
 /*------------------------------------------------------------------*/
 /**
  * Neighbor Advertisement Processing
@@ -522,14 +546,11 @@ na_input(void)
         goto discard;
       }
 
-      if(is_solicited) {
-        nbr->state = NBR_REACHABLE;
-        nbr->nscount = 0;
-
-        /* reachable time is stored in ms */
-        stimer_set(&(nbr->reachable), uip_ds6_if.reachable_time / 1000);
-
-      } else {
+      /* Note: No need to refresh the state of the nbr here.
+       * It has already been refreshed upon receiving the unicast IPv6 ND packet.
+       * See: uip_ds6_nbr_refresh_reachable_state()
+       */
+      if(!is_solicited) {
         nbr->state = NBR_STALE;
       }
       nbr->isrouter = is_router;
@@ -552,11 +573,10 @@ na_input(void)
               goto discard;
             }
           }
-          if(is_solicited) {
-            nbr->state = NBR_REACHABLE;
-            /* reachable time is stored in ms */
-            stimer_set(&(nbr->reachable), uip_ds6_if.reachable_time / 1000);
-          }
+          /* Note: No need to refresh the state of the nbr here.
+           * It has already been refreshed upon receiving the unicast IPv6 ND packet.
+           * See: uip_ds6_nbr_refresh_reachable_state()
+           */
         }
       }
       if(nbr->isrouter && !is_router) {
@@ -589,7 +609,7 @@ discard:
   uip_clear_buf();
   return;
 }
-#endif /* UIP_ND6_SEND_NA */
+#endif /* UIP_ND6_SEND_NS */
 
 #if UIP_CONF_ROUTER
 #if UIP_ND6_SEND_RA
@@ -662,7 +682,8 @@ rs_input(void)
         }
         if(memcmp(&nd6_opt_llao[UIP_ND6_OPT_DATA_OFFSET],
             lladdr, UIP_LLADDR_LEN) != 0) {
-          uip_ds6_nbr_t nbr_data = *nbr;
+          uip_ds6_nbr_t nbr_data;
+          nbr_data = *nbr;
           uip_ds6_nbr_rm(nbr);
           nbr = uip_ds6_nbr_add(&UIP_IP_BUF->srcipaddr, &lladdr_aligned,
                                 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
@@ -1082,6 +1103,8 @@ discard:
 #if UIP_ND6_SEND_NA
 UIP_ICMP6_HANDLER(ns_input_handler, ICMP6_NS, UIP_ICMP6_HANDLER_CODE_ANY,
                   ns_input);
+#endif
+#if UIP_ND6_SEND_NS
 UIP_ICMP6_HANDLER(na_input_handler, ICMP6_NA, UIP_ICMP6_HANDLER_CODE_ANY,
                   na_input);
 #endif
@@ -1099,19 +1122,16 @@ UIP_ICMP6_HANDLER(ra_input_handler, ICMP6_RA, UIP_ICMP6_HANDLER_CODE_ANY,
 void
 uip_nd6_init()
 {
-
 #if UIP_ND6_SEND_NA
   /* Only handle NSs if we are prepared to send out NAs */
   uip_icmp6_register_input_handler(&ns_input_handler);
-
-  /*
-   * Only handle NAs if we are prepared to send out NAs.
-   * This is perhaps logically incorrect, but this condition was present in
-   * uip_process and we keep it until proven wrong
-   */
-  uip_icmp6_register_input_handler(&na_input_handler);
 #endif
 
+#if UIP_ND6_SEND_NS
+  /*
+   * Only handle NAs if we are prepared to send out NSs. */
+  uip_icmp6_register_input_handler(&na_input_handler);
+#endif
 
 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA
   /* Only accept RS if we are a router and happy to send out RAs */

core/net/ipv6/uip-nd6.h

@@ -60,11 +60,23 @@
 /** \name RFC 4861 Host constant */
 /** @{ */
 /** \brief Maximum router solicitation delay */
+#ifndef UIP_CONF_ND6_MAX_RTR_SOLICITATION_DELAY
 #define UIP_ND6_MAX_RTR_SOLICITATION_DELAY 1
+#else
+#define UIP_ND6_MAX_RTR_SOLICITATION_DELAY UIP_CONF_ND6_MAX_RTR_SOLICITATION_DELAY
+#endif
 /** \brief Router solicitation interval */
+#ifndef UIP_CONF_ND6_RTR_SOLICITATION_INTERVAL
 #define UIP_ND6_RTR_SOLICITATION_INTERVAL  4
+#else
+#define UIP_ND6_RTR_SOLICITATION_INTERVAL  UIP_CONF_ND6_RTR_SOLICITATION_INTERVAL
+#endif
 /** \brief Maximum router solicitations */
+#ifndef UIP_CONF_ND6_MAX_RTR_SOLICITATIONS
 #define UIP_ND6_MAX_RTR_SOLICITATIONS      3
+#else
+#define UIP_ND6_MAX_RTR_SOLICITATIONS      UIP_CONF_ND6_MAX_RTR_SOLICITATIONS
+#endif
 /** @} */
 
 /** \name RFC 4861 Router constants */
@@ -74,6 +86,11 @@
 #else
 #define UIP_ND6_SEND_RA UIP_CONF_ND6_SEND_RA
 #endif
+#ifndef UIP_CONF_ND6_SEND_NS
+#define UIP_ND6_SEND_NS                     1   /* enable/disable NS sending */
+#else
+#define UIP_ND6_SEND_NS UIP_CONF_ND6_SEND_NS
+#endif
 #ifndef UIP_CONF_ND6_SEND_NA
 #define UIP_ND6_SEND_NA                     1   /* enable/disable NA sending */
 #else
@@ -91,7 +108,11 @@
 #endif
 #define UIP_ND6_M_FLAG                      0
 #define UIP_ND6_O_FLAG                      (UIP_ND6_RA_RDNSS || UIP_ND6_RA_DNSSL)
+#ifndef UIP_CONF_ROUTER_LIFETIME
 #define UIP_ND6_ROUTER_LIFETIME             3 * UIP_ND6_MAX_RA_INTERVAL
+#else
+#define UIP_ND6_ROUTER_LIFETIME             UIP_CONF_ROUTER_LIFETIME
+#endif
 
 #define UIP_ND6_MAX_INITIAL_RA_INTERVAL     16  /*seconds*/
 #define UIP_ND6_MAX_INITIAL_RAS             3   /*transmissions*/
@@ -109,7 +130,7 @@
 #if UIP_CONF_LL_802154
 #define UIP_ND6_DEF_MAXDADNS 0
 #else /* UIP_CONF_LL_802154 */
-#define UIP_ND6_DEF_MAXDADNS UIP_ND6_SEND_NA
+#define UIP_ND6_DEF_MAXDADNS UIP_ND6_SEND_NS
 #endif /* UIP_CONF_LL_802154 */
 #else /* UIP_CONF_ND6_DEF_MAXDADNS */
 #define UIP_ND6_DEF_MAXDADNS UIP_CONF_ND6_DEF_MAXDADNS
@@ -336,30 +357,6 @@ typedef struct uip_nd6_opt_redirected_hdr {
  * @{
  */
  /**
- * \brief Process a neighbor solicitation
- *
- * The NS can be received in 3 cases (procedures):
- * - sender is performing DAD (ip src = unspecified, no SLLAO option)
- * - sender is performing NUD (ip dst = unicast)
- * - sender is performing address resolution (ip dest = solicited node mcast
- * address)
- *
- * We do:
- * - if the tgt belongs to me, reply, otherwise ignore
- * - if i was performing DAD for the same address, two cases:
- * -- I already sent a NS, hence I win
- * -- I did not send a NS yet, hence I lose
- *
- * If we need to send a NA in response (i.e. the NS was done for NUD, or
- * address resolution, or DAD and there is a conflict), we do it in this
- * function: set src, dst, tgt address in the three cases, then for all cases
- * set the rest, including  SLLAO
- *
- */
-void
-uip_nd6_ns_input(void);
-
-/**
  * \brief Send a neighbor solicitation, send a Neighbor Advertisement
  * \param src pointer to the src of the NS if known
  * \param dest pointer to ip address to send the NS, for DAD or ADDR Resol,

core/net/ipv6/uip6.c

@@ -73,6 +73,7 @@
 
 #include "sys/cc.h"
 #include "net/ip/uip.h"
+#include "net/ip/uip_arch.h"
 #include "net/ip/uipopt.h"
 #include "net/ipv6/uip-icmp6.h"
 #include "net/ipv6/uip-nd6.h"
@@ -84,6 +85,10 @@
 #include "rpl/rpl-private.h"
 #endif
 
+#if UIP_ND6_SEND_NS
+#include "net/ipv6/uip-ds6-nbr.h"
+#endif /* UIP_ND6_SEND_NS */
+
 #include <string.h>
 
 /*---------------------------------------------------------------------------*/
@@ -890,7 +895,7 @@ ext_hdr_options_process(void)
        */
 #if UIP_CONF_IPV6_RPL
       PRINTF("Processing RPL option\n");
-      if(rpl_verify_hbh_header(uip_ext_opt_offset)) {
+      if(!rpl_verify_hbh_header(uip_ext_opt_offset)) {
         PRINTF("RPL Option Error: Dropping Packet\n");
         return 1;
       }
@@ -1150,6 +1155,13 @@ uip_process(uint8_t flag)
     goto drop;
   }
 
+  /* Refresh neighbor state after receiving a unicast message */
+#if UIP_ND6_SEND_NS
+  if(!uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
+    uip_ds6_nbr_refresh_reachable_state(&UIP_IP_BUF->srcipaddr);
+  }
+#endif /* UIP_ND6_SEND_NS */
+
 #if UIP_CONF_ROUTER
   /*
    * Next header field processing. In IPv6, we can have extension headers,
@@ -1228,14 +1240,6 @@ uip_process(uint8_t flag)
         goto send;
       }
 
-#if UIP_CONF_IPV6_RPL
-      if(!rpl_update_header()) {
-        /* Packet can not be forwarded */
-        PRINTF("RPL header update error\n");
-        goto drop;
-      }
-#endif /* UIP_CONF_IPV6_RPL */
-
       UIP_IP_BUF->ttl = UIP_IP_BUF->ttl - 1;
       PRINTF("Forwarding packet to ");
       PRINT6ADDR(&UIP_IP_BUF->destipaddr);
@@ -1582,10 +1586,6 @@ uip_process(uint8_t flag)
   }
 #endif /* UIP_UDP_CHECKSUMS */
 
-#if UIP_CONF_IPV6_RPL
-  rpl_insert_header();
-#endif /* UIP_CONF_IPV6_RPL */
-
   UIP_STAT(++uip_stat.udp.sent);
   goto ip_send_nolen;
 #endif /* UIP_UDP */
@@ -1854,8 +1854,10 @@ uip_process(uint8_t flag)
       if((UIP_TCP_BUF->flags & TCP_SYN)) {
         if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_RCVD) {
           goto tcp_send_synack;
+#if UIP_ACTIVE_OPEN
         } else if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_SENT) {
           goto tcp_send_syn;
+#endif
         }
       }
       goto tcp_send_ack;

core/net/ipv6/websocket-http-client.c

@@ -0,0 +1,347 @@
+/*
+ * Copyright (c) 2014, Thingsquare, http://www.thingsquare.com/.
+ * 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.
+ *
+ */
+
+#include "websocket-http-client.h"
+#include "net/ip/uiplib.h"
+#include "net/ip/resolv.h"
+
+#include "ip64-addr.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#define DEBUG DEBUG_NONE
+#include "net/ip/uip-debug.h"
+
+enum {
+  STATE_WAITING_FOR_HEADER,
+  STATE_WAITING_FOR_CONNECTED,
+  STATE_STEADY_STATE,
+};
+/*---------------------------------------------------------------------------*/
+static void
+send_get(struct websocket_http_client_state *s)
+{
+  struct tcp_socket *tcps;
+
+  tcps = &s->s;
+  tcp_socket_send_str(tcps, "GET ");
+  tcp_socket_send_str(tcps, s->file);
+  tcp_socket_send_str(tcps, " HTTP/1.1\r\n");
+  tcp_socket_send_str(tcps, "Host: ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, "\r\n");
+  if(strlen(s->header) > 0) {
+    tcp_socket_send_str(tcps, s->header);
+  }
+  /* The Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw== header is
+     supposed to be a random value, encoded as base64, that is SHA1
+     hashed by the server and returned in a HTTP header. This is used
+     to make sure that we are not seeing some cached version of this
+     conversation. But we have no SHA1 code by default in Contiki, so
+     we can't check the return value. Therefore we just use a
+     hardcoded value here. */
+  tcp_socket_send_str(tcps,
+                      "Connection: Upgrade\r\n"
+                      "Upgrade: websocket\r\n"
+                      "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"
+                      "Sec-WebSocket-Version: 13\r\n"
+                      "Sec-WebSocket-Protocol:");
+  tcp_socket_send_str(tcps, s->subprotocol);
+  tcp_socket_send_str(tcps, "\r\n");
+  tcp_socket_send_str(tcps, "\r\n");
+  PRINTF("websocket-http-client: send_get(): output buffer left %d\n", tcp_socket_max_sendlen(tcps));
+}
+/*---------------------------------------------------------------------------*/
+static void
+send_connect(struct websocket_http_client_state *s)
+{
+  struct tcp_socket *tcps;
+  char buf[20];
+
+  tcps = &s->s;
+  tcp_socket_send_str(tcps, "CONNECT ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, ":");
+  sprintf(buf, "%d", s->port);
+  tcp_socket_send_str(tcps, buf);
+  tcp_socket_send_str(tcps, " HTTP/1.1\r\n");
+  tcp_socket_send_str(tcps, "Host: ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, "\r\n");
+  tcp_socket_send_str(tcps, "Proxy-Connection: Keep-Alive\r\n\r\n");
+}
+/*---------------------------------------------------------------------------*/
+static void
+event(struct tcp_socket *tcps, void *ptr,
+      tcp_socket_event_t e)
+{
+  struct websocket_http_client_state *s = ptr;
+
+  if(e == TCP_SOCKET_CONNECTED) {
+    if(s->proxy_port != 0) {
+      send_connect(s);
+    } else {
+      send_get(s);
+    }
+  } else if(e == TCP_SOCKET_CLOSED) {
+    websocket_http_client_closed(s);
+  } else if(e == TCP_SOCKET_TIMEDOUT) {
+    websocket_http_client_timedout(s);
+  } else if(e == TCP_SOCKET_ABORTED) {
+    websocket_http_client_aborted(s);
+  } else if(e == TCP_SOCKET_DATA_SENT) {
+    /* We could feed this information up to the websocket.c layer, but
+       we currently do not do that. */
+  }
+}
+/*---------------------------------------------------------------------------*/
+static int
+parse_header_byte(struct websocket_http_client_state *s,
+                  uint8_t b)
+{
+  static const char *endmarker = "\r\n\r\n";
+
+  PT_BEGIN(&s->parse_header_pt);
+
+  /* Skip the first part of the HTTP response */
+  while(b != ' ') {
+    PT_YIELD(&s->parse_header_pt);
+  }
+
+  /* Skip the space that follow the first part */
+  PT_YIELD(&s->parse_header_pt);
+
+  /* Read the first three bytes that constistute the HTTP status
+     code. We store the HTTP status code as an integer in the
+     s->http_status field. */
+  s->http_status = (b - '0');
+  PT_YIELD(&s->parse_header_pt);
+  s->http_status = s->http_status * 10 + (b - '0');
+  PT_YIELD(&s->parse_header_pt);
+  s->http_status = s->http_status * 10 + (b - '0');
+
+  if((s->proxy_port != 0 && !(s->http_status == 200 || s->http_status == 101)) ||
+     (s->proxy_port == 0 && s->http_status != 101)) {
+    /* This is a websocket request, so the server should have answered
+       with a 101 Switching protocols response. */
+    PRINTF("Websocket HTTP client didn't get the 101 status code (got %d), closing connection\n",
+           s->http_status);
+    websocket_http_client_close(s);
+    while(1) {
+      PT_YIELD(&s->parse_header_pt);
+    }
+  }
+
+  /* Keep eating header bytes until we reach the end of it. The end is
+     indicated by the string "\r\n\r\n". We don't actually look at any
+     of the headers.
+
+     The s->i variable contains the number of consecutive bytes
+     matched. If we match the total length of the string, we stop.
+  */
+
+  s->i = 0;
+  do {
+    PT_YIELD(&s->parse_header_pt);
+    if(b == (uint8_t)endmarker[s->i]) {
+      s->i++;
+    } else {
+      s->i = 0;
+    }
+  } while(s->i < strlen(endmarker));
+
+  if(s->proxy_port != 0 && s->state == STATE_WAITING_FOR_HEADER) {
+    send_get(s);
+    s->state = STATE_WAITING_FOR_CONNECTED;
+  } else {
+    s->state = STATE_STEADY_STATE;
+    websocket_http_client_connected(s);
+  }
+  PT_END(&s->parse_header_pt);
+}
+/*---------------------------------------------------------------------------*/
+static int
+input(struct tcp_socket *tcps, void *ptr,
+      const uint8_t *inputptr, int inputdatalen)
+{
+  struct websocket_http_client_state *s = ptr;
+
+  if(s->state == STATE_WAITING_FOR_HEADER ||
+     s->state == STATE_WAITING_FOR_CONNECTED) {
+    int i;
+    for(i = 0; i < inputdatalen; i++) {
+      parse_header_byte(s, inputptr[i]);
+      if(s->state == STATE_STEADY_STATE) {
+        i++;
+        break;
+      }
+    }
+
+    if(i < inputdatalen && s->state == STATE_STEADY_STATE) {
+      websocket_http_client_datahandler(s, &inputptr[i], inputdatalen - i);
+    }
+  } else {
+    websocket_http_client_datahandler(s, inputptr, inputdatalen);
+  }
+
+  return 0; /* all data consumed */
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_register(struct websocket_http_client_state *s,
+                               const char *host,
+                               uint16_t port,
+                               const char *file,
+                               const char *subprotocol,
+                               const char *header)
+{
+  if(host == NULL) {
+    return -1;
+  }
+  strncpy(s->host, host, sizeof(s->host));
+
+  if(file == NULL) {
+    return -1;
+  }
+  strncpy(s->file, file, sizeof(s->file));
+
+  if(subprotocol == NULL) {
+    return -1;
+  }
+  strncpy(s->subprotocol, subprotocol, sizeof(s->subprotocol));
+
+  if(header == NULL) {
+    strncpy(s->header, "", sizeof(s->header));
+  } else {
+    strncpy(s->header, header, sizeof(s->header));
+  }
+
+  if(port == 0) {
+    s->port = 80;
+  } else {
+    s->port = port;
+  }
+  return 1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_get(struct websocket_http_client_state *s)
+{
+  uip_ip4addr_t ip4addr;
+  uip_ip6addr_t ip6addr;
+  uip_ip6addr_t *addr;
+  uint16_t port;
+
+  PRINTF("websocket_http_client_get: connecting to %s with file %s subprotocol %s header %s\n",
+         s->host, s->file, s->subprotocol, s->header);
+
+
+  s->state = STATE_WAITING_FOR_HEADER;
+
+  if(tcp_socket_register(&s->s, s,
+                         s->inputbuf, sizeof(s->inputbuf),
+                         s->outputbuf, sizeof(s->outputbuf),
+                         input, event) < 0) {
+    return -1;
+  }
+
+  port = s->port;
+  if(s->proxy_port != 0) {
+    /* The proxy address should be an IPv6 address. */
+    uip_ipaddr_copy(&ip6addr, &s->proxy_addr);
+    port = s->proxy_port;
+  } else if(uiplib_ip6addrconv(s->host, &ip6addr) == 0) {
+    /* First check if the host is an IP address. */
+    if(uiplib_ip4addrconv(s->host, &ip4addr) != 0) {
+      ip64_addr_4to6(&ip4addr, &ip6addr);
+    } else {
+      /* Try to lookup the hostname. If it fails, we initiate a hostname
+         lookup. */
+      if(resolv_lookup(s->host, &addr) != RESOLV_STATUS_CACHED) {
+        return -1;
+      }
+      return tcp_socket_connect(&s->s, addr, s->port);
+    }
+  }
+  return tcp_socket_connect(&s->s, &ip6addr, port);
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_send(struct websocket_http_client_state *s,
+                           const uint8_t *data,
+                           uint16_t datalen)
+{
+  if(s->state == STATE_STEADY_STATE) {
+    return tcp_socket_send(&s->s, data, datalen);
+  }
+  return -1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_sendbuflen(struct websocket_http_client_state *s)
+{
+  return tcp_socket_max_sendlen(&s->s);
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_close(struct websocket_http_client_state *s)
+{
+  tcp_socket_close(&s->s);
+}
+/*---------------------------------------------------------------------------*/
+const char *
+websocket_http_client_hostname(struct websocket_http_client_state *s)
+{
+  return s->host;
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_init(struct websocket_http_client_state *s)
+{
+  uip_create_unspecified(&s->proxy_addr);
+  s->proxy_port = 0;
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_set_proxy(struct websocket_http_client_state *s,
+                                const uip_ipaddr_t *addr, uint16_t port)
+{
+  uip_ipaddr_copy(&s->proxy_addr, addr);
+  s->proxy_port = port;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_queuelen(struct websocket_http_client_state *s)
+{
+  return tcp_socket_queuelen(&s->s);
+}
+/*---------------------------------------------------------------------------*/

core/net/ipv6/websocket-http-client.h

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2014, Thingsquare, http://www.thingsquare.com/.
+ * 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 WEBSOCKET_HTTP_CLIENT_H_
+#define WEBSOCKET_HTTP_CLIENT_H_
+
+#include "contiki.h"
+#include "tcp-socket.h"
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE
+#define WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE */
+#define WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE 100
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE
+#define WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE */
+#define WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE 300
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN 32
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_FILELEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_FILELEN 32
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN 24
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN 128
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN */
+
+struct websocket_http_client_state {
+  struct tcp_socket s;
+  uint8_t inputbuf[WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE];
+  uint8_t outputbuf[WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE];
+  char host[WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN];
+  char file[WEBSOCKET_HTTP_CLIENT_MAX_FILELEN];
+  char subprotocol[WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN];
+  char header[WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN];
+  uint16_t port;
+
+  int state;
+  struct pt parse_header_pt;
+  int http_status;
+  int i;
+
+  uip_ipaddr_t proxy_addr;
+  uint16_t proxy_port;
+};
+
+void websocket_http_client_init(struct websocket_http_client_state *s);
+void websocket_http_client_set_proxy(struct websocket_http_client_state *s,
+                                     const uip_ipaddr_t *addr, uint16_t port);
+
+int websocket_http_client_register(struct websocket_http_client_state *s,
+                                   const char *host,
+                                   uint16_t port,
+                                   const char *file,
+                                   const char *subprotocol,
+                                   const char *hdr);
+int websocket_http_client_get(struct websocket_http_client_state *s);
+int websocket_http_client_send(struct websocket_http_client_state *s,
+                               const uint8_t *data,
+                               uint16_t datalen);
+int websocket_http_client_sendbuflen(struct websocket_http_client_state *s);
+
+void websocket_http_client_close(struct websocket_http_client_state *s);
+
+const char *websocket_http_client_hostname(struct websocket_http_client_state *s);
+
+int websocket_http_client_queuelen(struct websocket_http_client_state *s);
+
+/* Callback functions that have to be implemented by the application
+   program. */
+void websocket_http_client_datahandler(struct websocket_http_client_state *s,
+				       const uint8_t *data, uint16_t len);
+void websocket_http_client_connected(struct websocket_http_client_state *s);
+void websocket_http_client_timedout(struct websocket_http_client_state *s);
+void websocket_http_client_aborted(struct websocket_http_client_state *s);
+void websocket_http_client_closed(struct websocket_http_client_state *s);
+
+#endif /* WEBSOCKET_HTTP_CLIENT_H_ */

core/net/ipv6/websocket.c

@@ -0,0 +1,724 @@
+/*
+ * Copyright (c) 2012, Thingsquare, http://www.thingsquare.com/.
+ * 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.
+ *
+ */
+
+#include <stdio.h>
+#include <stddef.h>
+#include <string.h>
+
+#include "contiki-net.h"
+#include "lib/petsciiconv.h"
+
+#include "websocket.h"
+
+PROCESS(websocket_process, "Websockets process");
+
+#define MAX_HOSTLEN 64
+#define MAX_PATHLEN 100
+
+LIST(websocketlist);
+
+#define WEBSOCKET_FIN_BIT       0x80
+
+#define WEBSOCKET_OPCODE_MASK   0x0f
+#define WEBSOCKET_OPCODE_CONT   0x00
+#define WEBSOCKET_OPCODE_TEXT   0x01
+#define WEBSOCKET_OPCODE_BIN    0x02
+#define WEBSOCKET_OPCODE_CLOSE  0x08
+#define WEBSOCKET_OPCODE_PING   0x09
+#define WEBSOCKET_OPCODE_PONG   0x0a
+
+#define WEBSOCKET_MASK_BIT      0x80
+#define WEBSOCKET_LEN_MASK      0x7f
+struct websocket_frame_hdr {
+  uint8_t opcode;
+  uint8_t len;
+  uint8_t extlen[4];
+};
+
+struct websocket_frame_mask {
+  uint8_t mask[4];
+};
+
+#define DEBUG DEBUG_NONE
+#include "net/ip/uip-debug.h"
+
+/*---------------------------------------------------------------------------*/
+static int
+parse_url(const char *url, char *host, uint16_t *portptr, char *path)
+{
+  const char *urlptr;
+  int i;
+  const char *file;
+  uint16_t port;
+
+  if(url == NULL) {
+    return 0;
+  }
+
+  /* Don't even try to go further if the URL is empty. */
+  if(strlen(url) == 0) {
+    return 0;
+  }
+
+  /* See if the URL starts with http:// or ws:// and remove it. */
+  if(strncmp(url, "http://", strlen("http://")) == 0) {
+    urlptr = url + strlen("http://");
+  } else if(strncmp(url, "ws://", strlen("ws://")) == 0) {
+    urlptr = url + strlen("ws://");
+  } else {
+    urlptr = url;
+  }
+
+  /* Find host part of the URL. */
+  for(i = 0; i < MAX_HOSTLEN; ++i) {
+    if(*urlptr == 0 ||
+       *urlptr == '/' ||
+       *urlptr == ' ' ||
+       *urlptr == ':') {
+      if(host != NULL) {
+	host[i] = 0;
+      }
+      break;
+    }
+    if(host != NULL) {
+      host[i] = *urlptr;
+    }
+    ++urlptr;
+  }
+
+  /* Find the port. Default is 0, which lets the underlying transport
+     select its default port. */
+  port = 0;
+  if(*urlptr == ':') {
+    port = 0;
+    do {
+      ++urlptr;
+      if(*urlptr >= '0' && *urlptr <= '9') {
+	port = (10 * port) + (*urlptr - '0');
+      }
+    } while(*urlptr >= '0' &&
+	    *urlptr <= '9');
+  }
+  if(portptr != NULL) {
+    *portptr = port;
+  }
+  /* Find file part of the URL. */
+  while(*urlptr != '/' && *urlptr != 0) {
+    ++urlptr;
+  }
+  if(*urlptr == '/') {
+    file = urlptr;
+  } else {
+    file = "/";
+  }
+  if(path != NULL) {
+    strncpy(path, file, MAX_PATHLEN);
+  }
+  return 1;
+}
+/*---------------------------------------------------------------------------*/
+static int
+start_get(struct websocket *s)
+{
+  if(websocket_http_client_get(&(s->s)) == 0) {
+    PRINTF("Out of memory error\n");
+    s->state = WEBSOCKET_STATE_CLOSED;
+    return WEBSOCKET_ERR;
+  } else {
+    PRINTF("Connecting...\n");
+    s->state = WEBSOCKET_STATE_HTTP_REQUEST_SENT;
+    return WEBSOCKET_OK;
+  }
+  return WEBSOCKET_ERR;
+}
+/*---------------------------------------------------------------------------*/
+void
+call(struct websocket *s, websocket_result_t r,
+     const uint8_t *data, uint16_t datalen)
+{
+  if(s != NULL && s->callback != NULL) {
+    s->callback(s, r, data, datalen);
+  }
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(websocket_process, ev, data)
+{
+  PROCESS_BEGIN();
+
+  while(1) {
+
+    PROCESS_WAIT_EVENT();
+
+    if(ev == resolv_event_found && data != NULL) {
+      int ret;
+      struct websocket *s;
+      const char *name = data;
+      /* Either found a hostname, or not. We need to go through the
+	 list of websocketsand figure out to which connection this
+	 reply corresponds, then either restart the HTTP get, or kill
+	 it (if no hostname was found). */
+      for(s = list_head(websocketlist);
+	  s != NULL;
+	  s = list_item_next(s)) {
+        if(strcmp(name, websocket_http_client_hostname(&s->s)) == 0) {
+          ret = resolv_lookup(name, NULL);
+          if(ret == RESOLV_STATUS_CACHED) {
+	    /* Hostname found, restart get. */
+            if(s->state == WEBSOCKET_STATE_DNS_REQUEST_SENT) {
+              PRINTF("Restarting get\n");
+              start_get(s);
+            }
+	  } else {
+            if(s->state == WEBSOCKET_STATE_DNS_REQUEST_SENT) {
+              /* Hostname not found, kill connection. */
+              /*	    PRINTF("XXX killing connection\n");*/
+              call(s, WEBSOCKET_HOSTNAME_NOT_FOUND, NULL, 0);
+            }
+	  }
+	}
+      }
+    }
+  }
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+/* Callback function. Called from the webclient when the HTTP
+ * connection was abruptly aborted.
+ */
+void
+websocket_http_client_aborted(struct websocket_http_client_state *client_state)
+{
+  if(client_state != NULL) {
+    struct websocket *s = (struct websocket *)
+      ((char *)client_state - offsetof(struct websocket, s));
+    PRINTF("Websocket reset\n");
+    s->state = WEBSOCKET_STATE_CLOSED;
+    call(s, WEBSOCKET_RESET, NULL, 0);
+  }
+}
+/*---------------------------------------------------------------------------*/
+/* Callback function. Called from the webclient when the HTTP
+ * connection timed out.
+ */
+void
+websocket_http_client_timedout(struct websocket_http_client_state *client_state)
+{
+  if(client_state != NULL) {
+    struct websocket *s = (struct websocket *)
+      ((char *)client_state - offsetof(struct websocket, s));
+    PRINTF("Websocket timed out\n");
+    s->state = WEBSOCKET_STATE_CLOSED;
+    call(s, WEBSOCKET_TIMEDOUT, NULL, 0);
+  }
+}
+/*---------------------------------------------------------------------------*/
+/* Callback function. Called from the webclient when the HTTP
+ * connection was closed after a request from the "websocket_http_client_close()"
+ * function. .
+ */
+void
+websocket_http_client_closed(struct websocket_http_client_state *client_state)
+{
+  if(client_state != NULL) {
+    struct websocket *s = (struct websocket *)
+      ((char *)client_state - offsetof(struct websocket, s));
+    PRINTF("Websocket closed.\n");
+    s->state = WEBSOCKET_STATE_CLOSED;
+    call(s, WEBSOCKET_CLOSED, NULL, 0);
+  }
+}
+/*---------------------------------------------------------------------------*/
+/* Callback function. Called from the webclient when the HTTP
+ * connection is connected.
+ */
+void
+websocket_http_client_connected(struct websocket_http_client_state *client_state)
+{
+  struct websocket *s = (struct websocket *)
+    ((char *)client_state - offsetof(struct websocket, s));
+
+  PRINTF("Websocket connected\n");
+  s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+  call(s, WEBSOCKET_CONNECTED, NULL, 0);
+}
+/*---------------------------------------------------------------------------*/
+/* The websocket header may potentially be split into multiple TCP
+   segments. This function eats one byte each, puts it into
+   s->headercache, and checks whether or not the full header has been
+   received. */
+static int
+receive_header_byte(struct websocket *s, uint8_t byte)
+{
+  int len;
+  int expected_len;
+  struct websocket_frame_hdr *hdr;
+
+  /* Take the next byte of data and place it in the header cache. */
+  if(s->state == WEBSOCKET_STATE_RECEIVING_HEADER) {
+    s->headercache[s->headercacheptr] = byte;
+    s->headercacheptr++;
+    if(s->headercacheptr >= sizeof(s->headercache)) {
+      /* Something bad happened: we ad read 10 bytes and had not yet
+         found a reasonable header, so we close the socket. */
+      websocket_close(s);
+    }
+  }
+
+  len = s->headercacheptr;
+  hdr = (struct websocket_frame_hdr *)s->headercache;
+
+  /* Check the header that we have received to see if it is long
+     enough. */
+
+  /* We start with expecting a length of at least two bytes (opcode +
+     1 length byte). */
+  expected_len = 2;
+
+  if(len >= expected_len) {
+
+    /* We check how many more bytes we should expect to see. The
+       length byte determines how many length bytes are included in
+       the header. */
+    if((hdr->len & WEBSOCKET_LEN_MASK) == 126) {
+      expected_len += 2;
+    } else if((hdr->len & WEBSOCKET_LEN_MASK) == 127) {
+      expected_len += 4;
+    }
+
+    /* If the option has the mask bit set, we should expect to see 4
+       mask bytes at the end of the header. */
+    if((hdr->len & WEBSOCKET_MASK_BIT ) != 0) {
+      expected_len += 4;
+    }
+
+    /* Now we know how long our header if expected to be. If it is
+       this long, we are done and we set the state to reflect this. */
+    if(len == expected_len) {
+      s->state = WEBSOCKET_STATE_HEADER_RECEIVED;
+      return 1;
+    }
+  }
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+/* Callback function. Called from the webclient module when HTTP data
+ * has arrived.
+ */
+void
+websocket_http_client_datahandler(struct websocket_http_client_state *client_state,
+				  const uint8_t *data, uint16_t datalen)
+{
+  struct websocket *s = (struct websocket *)
+    ((char *)client_state - offsetof(struct websocket, s));
+  struct websocket_frame_hdr *hdr;
+  struct websocket_frame_mask *maskptr;
+
+  if(data == NULL) {
+    call(s, WEBSOCKET_CLOSED, NULL, 0);
+  } else {
+    /* This function is a state machine that does different things
+       depending on the state. If we are waiting for header (the
+       default state), we change to the RECEIVING_HEADER state when we
+       get the first byte. If we are receiving header, we put all
+       bytes we have into a header buffer until the full header has
+       been received. If we have received the header, we parse it. If
+       we have received and parsed the header, we are ready to receive
+       data. Finally, if there is data left in the incoming packet, we
+       repeat the process. */
+
+    if(s->state == WEBSOCKET_STATE_WAITING_FOR_HEADER) {
+      s->state = WEBSOCKET_STATE_RECEIVING_HEADER;
+      s->headercacheptr = 0;
+    }
+
+    if(s->state == WEBSOCKET_STATE_RECEIVING_HEADER) {
+      while(datalen > 0 && s->state == WEBSOCKET_STATE_RECEIVING_HEADER) {
+        receive_header_byte(s, data[0]);
+        data++;
+        datalen--;
+      }
+    }
+
+    if(s->state == WEBSOCKET_STATE_HEADER_RECEIVED) {
+      /* If this is the start of an incoming websocket data frame, we
+         decode the header and check if we should act on in. If not, we
+         pipe the data to the application through a callback handler. If
+         data arrives in multiple packets, it is up to the application to
+         put it back together again. */
+
+      /* The websocket header is at the start of the incoming data. */
+      hdr = (struct websocket_frame_hdr *)s->headercache;
+
+      /* The s->left field holds the length of the application data
+       * chunk that we are about to receive. */
+      s->len = s->left = 0;
+
+      /* The s->mask field holds the bitmask of the data chunk, if
+       * any. */
+      memset(s->mask, 0, sizeof(s->mask));
+
+      /* We first read out the length of the application data
+         chunk. The length may be encoded over multiple bytes. If the
+         length is >= 126 bytes, it is encoded as two or more
+         bytes. The first length field determines if it is in 2 or 4
+         bytes. We also keep track of where the bitmask is held - its
+         place also differs depending on how the length is encoded.  */
+      maskptr = (struct websocket_frame_mask *)hdr->extlen;
+      if((hdr->len & WEBSOCKET_LEN_MASK) < 126) {
+        s->len = s->left = hdr->len & WEBSOCKET_LEN_MASK;
+      } else if(hdr->len == 126) {
+        s->len = s->left = (hdr->extlen[0] << 8) + hdr->extlen[1];
+        maskptr = (struct websocket_frame_mask *)&hdr->extlen[2];
+      } else if(hdr->len == 127) {
+        s->len = s->left = ((uint32_t)hdr->extlen[0] << 24) +
+          ((uint32_t)hdr->extlen[1] << 16) +
+          ((uint32_t)hdr->extlen[2] << 8) +
+          hdr->extlen[3];
+        maskptr = (struct websocket_frame_mask *)&hdr->extlen[4];
+      }
+
+      /* Set user_data to point to the first byte of application data.
+         See if the application data chunk is masked or not. If it is,
+         we copy the bitmask into the s->mask field. */
+      if((hdr->len & WEBSOCKET_MASK_BIT) == 0) {
+        /*        PRINTF("No mask\n");*/
+      } else {
+        memcpy(s->mask, &maskptr->mask, sizeof(s->mask));
+        /*        PRINTF("There was a mask, %02x %02x %02x %02x\n",
+                  s->mask[0], s->mask[1], s->mask[2], s->mask[3]);*/
+      }
+
+      /* Remember the opcode of the application chunk, put it in the
+       * s->opcode field. */
+      s->opcode = hdr->opcode & WEBSOCKET_OPCODE_MASK;
+
+      if(s->opcode == WEBSOCKET_OPCODE_PING) {
+        /* If the opcode is ping, we change the opcode to a pong, and
+         * send the data back. */
+        hdr->opcode = (hdr->opcode & (~WEBSOCKET_OPCODE_MASK)) |
+          WEBSOCKET_OPCODE_PONG;
+        websocket_http_client_send(&s->s, (const uint8_t*)hdr, 2);
+        if(s->left > 0) {
+          websocket_http_client_send(&s->s, (const uint8_t*)data, s->left);
+        }
+        PRINTF("Got ping\n");
+        call(s, WEBSOCKET_PINGED, NULL, 0);
+        s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+      } else if(s->opcode == WEBSOCKET_OPCODE_PONG) {
+          /* If the opcode is pong, we call the application to let it
+           know we got a pong. */
+        PRINTF("Got pong\n");
+        call(s, WEBSOCKET_PONG_RECEIVED, NULL, 0);
+        s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+      } else if(s->opcode == WEBSOCKET_OPCODE_CLOSE) {
+        /* If the opcode is a close, we send a close frame back. */
+        hdr->opcode = (hdr->opcode & (~WEBSOCKET_OPCODE_MASK)) |
+          WEBSOCKET_OPCODE_CLOSE;
+        websocket_http_client_send(&s->s, (const uint8_t*)hdr, 2);
+        if(s->left > 0) {
+          websocket_http_client_send(&s->s, (const uint8_t*)data, s->left);
+        }
+        PRINTF("websocket: got close, sending close\n");
+        s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+        websocket_http_client_close(&s->s);
+      } else if(s->opcode == WEBSOCKET_OPCODE_BIN ||
+                s->opcode == WEBSOCKET_OPCODE_TEXT) {
+
+        /* If the opcode is bin or text, and there is application
+         * layer data in the packet, we call the application to
+         * process it. */
+        if(s->left > 0) {
+          s->state = WEBSOCKET_STATE_RECEIVING_DATA;
+          if(datalen > 0) {
+            int len;
+
+            len = MIN(s->left, datalen);
+            /* XXX todo: mask if needed. */
+            call(s, WEBSOCKET_DATA, data, len);
+            data += len;
+            s->left -= len;
+            datalen -= len;
+          }
+        }
+      }
+
+      if(s->left == 0) {
+        call(s, WEBSOCKET_DATA_RECEIVED, NULL, s->len);
+        s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+
+        /* Need to keep parsing the incoming data to check for more
+           frames, if the incoming datalen is > than s->left. */
+        if(datalen > 0) {
+          PRINTF("XXX 1 again\n");
+          websocket_http_client_datahandler(client_state,
+                                            data, datalen);
+        }
+      }
+    } else if(s->state == WEBSOCKET_STATE_RECEIVING_DATA) {
+      /* XXX todo: mask if needed. */
+      /*      PRINTF("Calling with s->left %d datalen %d\n",
+              s->left, datalen);*/
+      if(datalen > 0) {
+        if(datalen < s->left) {
+          call(s, WEBSOCKET_DATA, data, datalen);
+          s->left -= datalen;
+          data += datalen;
+          datalen = 0;
+        } else {
+          call(s, WEBSOCKET_DATA, data, s->left);
+          data += s->left;
+          datalen -= s->left;
+          s->left = 0;
+        }
+      }
+      if(s->left == 0) {
+        call(s, WEBSOCKET_DATA_RECEIVED, NULL, s->len);
+        s->state = WEBSOCKET_STATE_WAITING_FOR_HEADER;
+        /* Need to keep parsing the incoming data to check for more
+           frames, if the incoming datalen is > than len. */
+        if(datalen > 0) {
+          PRINTF("XXX 2 again (datalen %d s->left %d)\n", datalen, (int)s->left);
+          websocket_http_client_datahandler(client_state,
+                                            data, datalen);
+
+        }
+      }
+    }
+  }
+}
+/*---------------------------------------------------------------------------*/
+static void
+init(void)
+{
+  static uint8_t inited = 0;
+  if(!inited) {
+    process_start(&websocket_process, NULL);
+    list_init(websocketlist);
+    inited = 1;
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_init(struct websocket *s)
+{
+  init();
+  websocket_http_client_init(&s->s);
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_set_proxy(struct websocket *s,
+                    const uip_ipaddr_t *addr, uint16_t port)
+{
+  websocket_http_client_set_proxy(&s->s, addr, port);
+}
+/*---------------------------------------------------------------------------*/
+websocket_result_t
+websocket_open(struct websocket *s, const char *url,
+               const char *subprotocol, const char *hdr,
+	       websocket_callback c)
+{
+  int ret;
+  char host[MAX_HOSTLEN + 1] = {0};
+  char path[MAX_PATHLEN + 1] = {0};
+  uint16_t port;
+  uip_ipaddr_t addr;
+
+  init();
+
+  if(s == NULL) {
+    return WEBSOCKET_ERR;
+  }
+
+  if(s->state != WEBSOCKET_STATE_CLOSED) {
+    PRINTF("websocket_open: closing websocket before opening it again.\n");
+    websocket_close(s);
+  }
+  s->callback = c;
+
+  if(parse_url(url, host, &port, path)) {
+    list_add(websocketlist, s);
+    websocket_http_client_register(&s->s, host, port, path, subprotocol, hdr);
+
+    /* First check if the host is an IP address. */
+    if(uiplib_ip4addrconv(host, (uip_ip4addr_t *)&addr) == 0 &&
+       uiplib_ip6addrconv(host, (uip_ip6addr_t *)&addr) == 0) {
+      /* Try to lookup the hostname. If it fails, we initiate a hostname
+	 lookup and print out an informative message on the
+	 statusbar. */
+      ret = resolv_lookup(host, NULL);
+      if(ret != RESOLV_STATUS_CACHED) {
+	resolv_query(host);
+	s->state = WEBSOCKET_STATE_DNS_REQUEST_SENT;
+	PRINTF("Resolving host...\n");
+	return WEBSOCKET_OK;
+      }
+    }
+
+    PROCESS_CONTEXT_BEGIN(&websocket_process);
+    ret = start_get(s);
+    PROCESS_CONTEXT_END();
+    return ret;
+  }
+  return -1;
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_close(struct websocket *s)
+{
+  websocket_http_client_close(&s->s);
+  s->state = WEBSOCKET_STATE_CLOSED;
+}
+/*---------------------------------------------------------------------------*/
+static int
+send_data(struct websocket *s, const void *data,
+          uint16_t datalen, uint8_t data_type_opcode)
+{
+  uint8_t buf[WEBSOCKET_MAX_MSGLEN + 4 + 4]; /* The extra + 4 + 4 here
+                                                comes from the size of
+                                                the websocket framing
+                                                header. */
+  struct websocket_frame_hdr *hdr;
+  struct websocket_frame_mask *mask;
+
+  PRINTF("websocket send data len %d %.*s\n", datalen, datalen, (char *)data);
+  if(s->state == WEBSOCKET_STATE_CLOSED ||
+     s->state == WEBSOCKET_STATE_DNS_REQUEST_SENT ||
+     s->state == WEBSOCKET_STATE_HTTP_REQUEST_SENT) {
+    /* Trying to send data on a non-connected websocket. */
+    PRINTF("websocket send fail: not connected\n");
+    return -1;
+  }
+
+  /* We need to have 4 + 4 additional bytes for the websocket framing
+     header. */
+  if(4 + 4 + datalen > websocket_http_client_sendbuflen(&s->s)) {
+    PRINTF("websocket: too few bytes left (%d left, %d needed)\n",
+           websocket_http_client_sendbuflen(&s->s),
+           4 + 4 + datalen);
+    return -1;
+  }
+
+  if(datalen > sizeof(buf) - 4 - 4) {
+    PRINTF("websocket: trying to send too large data chunk %d > %d\n",
+           datalen, sizeof(buf) - 4 - 4);
+    return -1;
+  }
+
+  hdr = (struct websocket_frame_hdr *)&buf[0];
+  hdr->opcode = WEBSOCKET_FIN_BIT | data_type_opcode;
+
+  /* If the datalen is larger than 125 bytes, we need to send the data
+     length as two bytes. If the data length would be larger than 64k,
+     we should send the length as 4 bytes, but since we specify the
+     datalen as an unsigned 16-bit int, we do not handle the 64k case
+     here. */
+  if(datalen > 125) {
+    /* Data from client must always have the mask bit set, and a data
+       mask sent right after the header. */
+    hdr->len = 126 | WEBSOCKET_MASK_BIT;
+    hdr->extlen[0] = datalen >> 8;
+    hdr->extlen[1] = datalen & 0xff;
+
+    mask = (struct websocket_frame_mask *)&buf[4];
+    mask->mask[0] =
+      mask->mask[1] =
+      mask->mask[2] =
+      mask->mask[3] = 0;
+    memcpy(&buf[8], data, datalen);
+    return websocket_http_client_send(&s->s, buf, 8 + datalen);
+  } else {
+    /* Data from client must always have the mask bit set, and a data
+       mask sent right after the header. */
+    hdr->len = datalen | WEBSOCKET_MASK_BIT;
+
+    mask = (struct websocket_frame_mask *)&buf[2];
+    mask->mask[0] =
+      mask->mask[1] =
+      mask->mask[2] =
+      mask->mask[3] = 0;
+    memcpy(&buf[6], data, datalen);
+    return websocket_http_client_send(&s->s, buf, 6 + datalen);
+  }
+  return -1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_send_str(struct websocket *s, const char *str)
+{
+  return send_data(s, str, strlen(str), WEBSOCKET_OPCODE_TEXT);
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_send(struct websocket *s, const uint8_t *data,
+	       uint16_t datalen)
+{
+  return send_data(s, data, datalen, WEBSOCKET_OPCODE_BIN);
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_ping(struct websocket *s)
+{
+  uint8_t buf[sizeof(struct websocket_frame_hdr) +
+              sizeof(struct websocket_frame_mask)];
+  struct websocket_frame_hdr *hdr;
+  struct websocket_frame_mask *mask;
+
+  /* We need 2 + 4 additional bytes for the websocket framing
+     header. */
+  if(2 + 4 > websocket_http_client_sendbuflen(&s->s)) {
+    return -1;
+  }
+
+  hdr = (struct websocket_frame_hdr *)&buf[0];
+  mask = (struct websocket_frame_mask *)&buf[2];
+  hdr->opcode = WEBSOCKET_FIN_BIT | WEBSOCKET_OPCODE_PING;
+
+  /* Data from client must always have the mask bit set, and a data
+     mask sent right after the header. */
+  hdr->len = 0 | WEBSOCKET_MASK_BIT;
+
+  /* XXX: We just set a dummy mask of 0 for now and hope that this
+     works. */
+  mask->mask[0] =
+    mask->mask[1] =
+    mask->mask[2] =
+    mask->mask[3] = 0;
+  websocket_http_client_send(&s->s, buf, 2 + 4);
+  return 1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_queuelen(struct websocket *s)
+{
+  return websocket_http_client_queuelen(&s->s);
+}
+/*---------------------------------------------------------------------------*/

core/net/ipv6/websocket.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2012, Thingsquare, http://www.thingsquare.com/.
+ * 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 WEBSOCKET_H
+#define WEBSOCKET_H
+
+#include "websocket-http-client.h"
+
+typedef enum {
+  WEBSOCKET_ERR = 0,
+  WEBSOCKET_OK = 1,
+  WEBSOCKET_IN_PROGRESS = 2,
+  WEBSOCKET_HOSTNAME_NOT_FOUND = 3,
+  WEBSOCKET_CONNECTED = 4,
+  WEBSOCKET_DATA = 5,
+  WEBSOCKET_RESET = 6,
+  WEBSOCKET_TIMEDOUT = 7,
+  WEBSOCKET_CLOSED = 8,
+  WEBSOCKET_PINGED = 9,
+  WEBSOCKET_DATA_RECEIVED = 10,
+  WEBSOCKET_PONG_RECEIVED = 11,
+} websocket_result_t;
+
+struct websocket;
+
+typedef void (* websocket_callback)(struct websocket *s,
+				    websocket_result_t result,
+				    const uint8_t *data,
+				    uint16_t datalen);
+#ifdef WEBSOCKET_CONF_MAX_MSGLEN
+#define WEBSOCKET_MAX_MSGLEN WEBSOCKET_CONF_MAX_MSGLEN
+#else /* WEBSOCKET_CONF_MAX_MSGLEN */
+#define WEBSOCKET_MAX_MSGLEN 200
+#endif /* WEBSOCKET_CONF_MAX_MSGLEN */
+
+struct websocket {
+  struct websocket *next;     /* Must be first. */
+  struct websocket_http_client_state s;
+  websocket_callback callback;
+
+  uint8_t mask[4];
+  uint32_t left, len;
+  uint8_t opcode;
+
+  uint8_t state;
+
+  uint8_t headercacheptr;
+  uint8_t headercache[10]; /* The maximum websocket header + mask is 6
+                              + 4 bytes long */
+};
+
+enum {
+  WEBSOCKET_STATE_CLOSED = 0,
+  WEBSOCKET_STATE_DNS_REQUEST_SENT = 1,
+  WEBSOCKET_STATE_HTTP_REQUEST_SENT = 2,
+  WEBSOCKET_STATE_WAITING_FOR_HEADER = 3,
+  WEBSOCKET_STATE_RECEIVING_HEADER = 4,
+  WEBSOCKET_STATE_HEADER_RECEIVED = 5,
+  WEBSOCKET_STATE_RECEIVING_DATA = 6,
+};
+
+
+void websocket_init(struct websocket *s);
+
+void websocket_set_proxy(struct websocket *s,
+                         const uip_ipaddr_t *addr, uint16_t port);
+
+websocket_result_t websocket_open(struct websocket *s,
+                                  const char *url,
+                                  const char *subprotocol,
+                                  const char *hdr,
+                                  websocket_callback c);
+
+int websocket_send(struct websocket *s,
+		   const uint8_t *data, uint16_t datalen);
+
+int websocket_send_str(struct websocket *s,
+                       const char *strptr);
+
+void websocket_close(struct websocket *s);
+
+int websocket_ping(struct websocket *s);
+
+int websocket_queuelen(struct websocket *s);
+
+#endif /* WEBSOCKET_H */

core/net/link-stats.c

@@ -51,7 +51,7 @@
 /* Maximum value for the freshness counter */
 #define FRESHNESS_MAX                   16
 /* Statistics with no update in FRESHNESS_EXPIRATION_TIMEOUT is not fresh */
-#define FRESHNESS_EXPIRATION_TIME       (10 * 60 * CLOCK_SECOND)
+#define FRESHNESS_EXPIRATION_TIME       (10 * 60 * (clock_time_t)CLOCK_SECOND)
 
 /* EWMA (exponential moving average) used to maintain statistics over time */
 #define EWMA_SCALE            100
@@ -206,6 +206,6 @@ void
 link_stats_init(void)
 {
   nbr_table_register(link_stats, NULL);
-  ctimer_set(&periodic_timer, 60 * CLOCK_SECOND * FRESHNESS_HALF_LIFE,
+  ctimer_set(&periodic_timer, 60 * (clock_time_t)CLOCK_SECOND * FRESHNESS_HALF_LIFE,
       periodic, NULL);
 }

core/net/linkaddr.c

@@ -52,6 +52,9 @@ const linkaddr_t linkaddr_null = { { 0, 0 } };
 #if LINKADDR_SIZE == 8
 const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0, 0, 0 } };
 #endif /*LINKADDR_SIZE == 8*/
+#if LINKADDR_SIZE == 6
+const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0 } };
+#endif /*LINKADDR_SIZE == 6*/
 #endif /*LINKADDR_SIZE == 2*/
 
 

core/net/mac/contikimac/contikimac.c

@@ -207,13 +207,13 @@ static int we_are_receiving_burst = 0;
 #define INTER_PACKET_INTERVAL              RTIMER_ARCH_SECOND / 2500
 #endif
 
-/* AFTER_ACK_DETECTECT_WAIT_TIME is the time to wait after a potential
+/* AFTER_ACK_DETECTED_WAIT_TIME is the time to wait after a potential
    ACK packet has been detected until we can read it out from the
    radio. */
-#ifdef CONTIKIMAC_CONF_AFTER_ACK_DETECTECT_WAIT_TIME
-#define AFTER_ACK_DETECTECT_WAIT_TIME      CONTIKIMAC_CONF_AFTER_ACK_DETECTECT_WAIT_TIME
+#ifdef CONTIKIMAC_CONF_AFTER_ACK_DETECTED_WAIT_TIME
+#define AFTER_ACK_DETECTED_WAIT_TIME      CONTIKIMAC_CONF_AFTER_ACK_DETECTED_WAIT_TIME
 #else
-#define AFTER_ACK_DETECTECT_WAIT_TIME      RTIMER_ARCH_SECOND / 1500
+#define AFTER_ACK_DETECTED_WAIT_TIME      RTIMER_ARCH_SECOND / 1500
 #endif
 
 /* MAX_PHASE_STROBE_TIME is the time that we transmit repeated packets
@@ -289,9 +289,15 @@ off(void)
   }
 }
 /*---------------------------------------------------------------------------*/
-static volatile rtimer_clock_t cycle_start;
 static void powercycle_wrapper(struct rtimer *t, void *ptr);
 static char powercycle(struct rtimer *t, void *ptr);
+/*---------------------------------------------------------------------------*/
+static volatile rtimer_clock_t cycle_start;
+#if SYNC_CYCLE_STARTS
+static volatile rtimer_clock_t sync_cycle_start;
+static volatile uint8_t sync_cycle_phase;
+#endif
+/*---------------------------------------------------------------------------*/
 static void
 schedule_powercycle(struct rtimer *t, rtimer_clock_t time)
 {
@@ -340,7 +346,7 @@ powercycle_turn_radio_off(void)
 #if CONTIKIMAC_CONF_COMPOWER
   uint8_t was_on = radio_is_on;
 #endif /* CONTIKIMAC_CONF_COMPOWER */
-  
+
   if(we_are_sending == 0 && we_are_receiving_burst == 0) {
     off();
 #if CONTIKIMAC_CONF_COMPOWER
@@ -367,13 +373,34 @@ powercycle_wrapper(struct rtimer *t, void *ptr)
   powercycle(t, ptr);
 }
 /*---------------------------------------------------------------------------*/
+static void
+advance_cycle_start(void)
+{
+  #if SYNC_CYCLE_STARTS
+
+  /* Compute cycle start when RTIMER_ARCH_SECOND is not a multiple
+  of CHANNEL_CHECK_RATE */
+  if(sync_cycle_phase++ == NETSTACK_RDC_CHANNEL_CHECK_RATE) {
+    sync_cycle_phase = 0;
+    sync_cycle_start += RTIMER_ARCH_SECOND;
+    cycle_start = sync_cycle_start;
+  } else if( (RTIMER_ARCH_SECOND * NETSTACK_RDC_CHANNEL_CHECK_RATE) > 65535) {
+    uint32_t phase_time = sync_cycle_phase*RTIMER_ARCH_SECOND;
+
+    cycle_start = sync_cycle_start + phase_time/NETSTACK_RDC_CHANNEL_CHECK_RATE;
+  } else {
+    unsigned phase_time = sync_cycle_phase*RTIMER_ARCH_SECOND;
+
+    cycle_start = sync_cycle_start + phase_time/NETSTACK_RDC_CHANNEL_CHECK_RATE;
+  }
+  #endif
+
+  cycle_start += CYCLE_TIME;
+}
+/*---------------------------------------------------------------------------*/
 static char
 powercycle(struct rtimer *t, void *ptr)
 {
-#if SYNC_CYCLE_STARTS
-  static volatile rtimer_clock_t sync_cycle_start;
-  static volatile uint8_t sync_cycle_phase;
-#endif
 
   PT_BEGIN(&pt);
 
@@ -387,24 +414,6 @@ powercycle(struct rtimer *t, void *ptr)
     static uint8_t packet_seen;
     static uint8_t count;
 
-#if SYNC_CYCLE_STARTS
-    /* Compute cycle start when RTIMER_ARCH_SECOND is not a multiple
-       of CHANNEL_CHECK_RATE */
-    if(sync_cycle_phase++ == NETSTACK_RDC_CHANNEL_CHECK_RATE) {
-      sync_cycle_phase = 0;
-      sync_cycle_start += RTIMER_ARCH_SECOND;
-      cycle_start = sync_cycle_start;
-    } else {
-#if (RTIMER_ARCH_SECOND * NETSTACK_RDC_CHANNEL_CHECK_RATE) > 65535
-      cycle_start = sync_cycle_start + ((unsigned long)(sync_cycle_phase*RTIMER_ARCH_SECOND))/NETSTACK_RDC_CHANNEL_CHECK_RATE;
-#else
-      cycle_start = sync_cycle_start + (sync_cycle_phase*RTIMER_ARCH_SECOND)/NETSTACK_RDC_CHANNEL_CHECK_RATE;
-#endif
-    }
-#else
-    cycle_start += CYCLE_TIME;
-#endif
-
     packet_seen = 0;
 
     for(count = 0; count < CCA_COUNT_MAX; ++count) {
@@ -472,8 +481,8 @@ powercycle(struct rtimer *t, void *ptr)
           break;
         }
 
-        schedule_powercycle(t, CCA_CHECK_TIME + CCA_SLEEP_TIME);
-        PT_YIELD(&pt);
+      //  schedule_powercycle(t, CCA_CHECK_TIME + CCA_SLEEP_TIME);
+      //  PT_YIELD(&pt);
       }
       if(radio_is_on) {
         if(!(NETSTACK_RADIO.receiving_packet() ||
@@ -485,24 +494,26 @@ powercycle(struct rtimer *t, void *ptr)
       }
     }
 
-    if(RTIMER_CLOCK_LT(RTIMER_NOW() - cycle_start, CYCLE_TIME - CHECK_TIME * 4)) {
+    advance_cycle_start();
+
+    if(RTIMER_CLOCK_LT(RTIMER_NOW() , cycle_start - CHECK_TIME * 4)) {
       /* Schedule the next powercycle interrupt, or sleep the mcu
-	 until then.  Sleeping will not exit from this interrupt, so
-	 ensure an occasional wake cycle or foreground processing will
-	 be blocked until a packet is detected */
+      until then.  Sleeping will not exit from this interrupt, so
+      ensure an occasional wake cycle or foreground processing will
+      be blocked until a packet is detected */
 #if RDC_CONF_MCU_SLEEP
       static uint8_t sleepcycle;
-      if((sleepcycle++ < mcusleepcycle) && !we_are_sending && !radio_is_on) {
-        rtimer_arch_sleep(CYCLE_TIME - (RTIMER_NOW() - cycle_start));
+      if((sleepcycle++ < mcusleepcycle) && !we_are_sending && !radio_is_on && !(NETSTACK_RADIO.receiving_packet() || NETSTACK_RADIO.pending_packet())) {
+          rtimer_arch_sleep(cycle_start - RTIMER_NOW());
       } else {
         sleepcycle = 0;
 #ifndef RDC_CONF_PT_YIELD_OFF
-        schedule_powercycle_fixed(t, CYCLE_TIME + cycle_start);
+        schedule_powercycle_fixed(t, cycle_start);
         PT_YIELD(&pt);
 #endif
       }
 #else
-      schedule_powercycle_fixed(t, CYCLE_TIME + cycle_start);
+      schedule_powercycle_fixed(t, cycle_start);
       PT_YIELD(&pt);
 #endif
     }
@@ -553,13 +564,13 @@ send_packet(mac_callback_t mac_callback, void *mac_callback_ptr,
   int len;
   uint8_t seqno;
 #endif
-  
+
   /* Exit if RDC and radio were explicitly turned off */
    if(!contikimac_is_on && !contikimac_keep_radio_on) {
     PRINTF("contikimac: radio is turned off\n");
     return MAC_TX_ERR_FATAL;
   }
- 
+
   if(packetbuf_totlen() == 0) {
     PRINTF("contikimac: send_packet data len 0\n");
     return MAC_TX_ERR_FATAL;
@@ -601,10 +612,10 @@ send_packet(mac_callback_t mac_callback, void *mac_callback_ptr,
       return MAC_TX_ERR_FATAL;
     }
   }
-  
+
   transmit_len = packetbuf_totlen();
   NETSTACK_RADIO.prepare(packetbuf_hdrptr(), transmit_len);
-  
+
   if(!is_broadcast && !is_receiver_awake) {
 #if WITH_PHASE_OPTIMIZATION
     ret = phase_wait(packetbuf_addr(PACKETBUF_ADDR_RECEIVER),
@@ -616,9 +627,9 @@ send_packet(mac_callback_t mac_callback, void *mac_callback_ptr,
     if(ret != PHASE_UNKNOWN) {
       is_known_receiver = 1;
     }
-#endif /* WITH_PHASE_OPTIMIZATION */ 
+#endif /* WITH_PHASE_OPTIMIZATION */
   }
-  
+
 
 
   /* By setting we_are_sending to one, we ensure that the rtimer
@@ -636,7 +647,7 @@ send_packet(mac_callback_t mac_callback, void *mac_callback_ptr,
            NETSTACK_RADIO.receiving_packet(), NETSTACK_RADIO.pending_packet());
     return MAC_TX_COLLISION;
   }
-  
+
   /* Switch off the radio to ensure that we didn't start sending while
      the radio was doing a channel check. */
   off();
@@ -755,7 +766,7 @@ send_packet(mac_callback_t mac_callback, void *mac_callback_ptr,
                            NETSTACK_RADIO.channel_clear() == 0)) {
         uint8_t ackbuf[ACK_LEN];
         wt = RTIMER_NOW();
-        while(RTIMER_CLOCK_LT(RTIMER_NOW(), wt + AFTER_ACK_DETECTECT_WAIT_TIME)) { }
+        while(RTIMER_CLOCK_LT(RTIMER_NOW(), wt + AFTER_ACK_DETECTED_WAIT_TIME)) { }
 
         len = NETSTACK_RADIO.read(ackbuf, ACK_LEN);
         if(len == ACK_LEN && seqno == ackbuf[ACK_LEN - 1]) {
@@ -844,7 +855,7 @@ qsend_list(mac_callback_t sent, void *ptr, struct rdc_buf_list *buf_list)
   int ret;
   int is_receiver_awake;
   int pending;
-  
+
   if(buf_list == NULL) {
     return;
   }
@@ -856,7 +867,7 @@ qsend_list(mac_callback_t sent, void *ptr, struct rdc_buf_list *buf_list)
     mac_call_sent_callback(sent, ptr, MAC_TX_COLLISION, 1);
     return;
   }
-  
+
   /* Create and secure frames in advance */
   curr = buf_list;
   do {
@@ -867,19 +878,23 @@ qsend_list(mac_callback_t sent, void *ptr, struct rdc_buf_list *buf_list)
       if(next != NULL) {
         packetbuf_set_attr(PACKETBUF_ATTR_PENDING, 1);
       }
+#if !NETSTACK_CONF_BRIDGE_MODE
+      /* If NETSTACK_CONF_BRIDGE_MODE is set, assume PACKETBUF_ADDR_SENDER is already set. */
+      packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &linkaddr_node_addr);
+#endif
       packetbuf_set_attr(PACKETBUF_ATTR_MAC_ACK, 1);
       if(NETSTACK_FRAMER.create() < 0) {
         PRINTF("contikimac: framer failed\n");
         mac_call_sent_callback(sent, ptr, MAC_TX_ERR_FATAL, 1);
         return;
       }
-      
+
       packetbuf_set_attr(PACKETBUF_ATTR_IS_CREATED_AND_SECURED, 1);
       queuebuf_update_from_packetbuf(curr->buf);
     }
     curr = next;
   } while(next != NULL);
-  
+
   /* The receiver needs to be awoken before we send */
   is_receiver_awake = 0;
   curr = buf_list;

core/net/mac/csma.c

@@ -231,10 +231,12 @@ tx_done(int status, struct rdc_buf_list *q, struct neighbor_queue *n)
   mac_callback_t sent;
   struct qbuf_metadata *metadata;
   void *cptr;
+  uint8_t ntx;
 
   metadata = (struct qbuf_metadata *)q->ptr;
   sent = metadata->sent;
   cptr = metadata->cptr;
+  ntx = n->transmissions;
 
   switch(status) {
   case MAC_TX_OK:
@@ -251,7 +253,7 @@ tx_done(int status, struct rdc_buf_list *q, struct neighbor_queue *n)
   }
 
   free_packet(n, q, status);
-  mac_call_sent_callback(sent, cptr, status, n->transmissions);
+  mac_call_sent_callback(sent, cptr, status, ntx);
 }
 /*---------------------------------------------------------------------------*/
 static void

core/net/mac/frame802154.c

@@ -146,36 +146,45 @@ frame802154_has_panid(frame802154_fcf_t *fcf, int *has_src_pan_id, int *has_dest
   }
 
   if(fcf->frame_version == FRAME802154_IEEE802154E_2012) {
-    if(!fcf->panid_compression) {
-      /* Compressed PAN ID == no PAN ID at all */
-      if(fcf->dest_addr_mode == fcf->dest_addr_mode) {
-        /* No address or both addresses: include destination PAN ID */
-        dest_pan_id = 1;
-      } else if(fcf->dest_addr_mode) {
-        /* Only dest address, include dest PAN ID */
-        dest_pan_id = 1;
-      } else if(fcf->src_addr_mode) {
-        /* Only src address, include src PAN ID */
-        src_pan_id = 1;
-      }
+    /*
+     * IEEE 802.15.4-2015
+     * Table 7-2, PAN ID Compression value for frame version 0b10
+     */
+    if((fcf->dest_addr_mode == FRAME802154_NOADDR &&
+        fcf->src_addr_mode == FRAME802154_NOADDR &&
+        fcf->panid_compression == 1) ||
+       (fcf->dest_addr_mode != FRAME802154_NOADDR &&
+        fcf->src_addr_mode == FRAME802154_NOADDR &&
+        fcf->panid_compression == 0) ||
+       (fcf->dest_addr_mode == FRAME802154_LONGADDRMODE &&
+        fcf->src_addr_mode == FRAME802154_LONGADDRMODE &&
+        fcf->panid_compression == 0) ||
+       ((fcf->dest_addr_mode == FRAME802154_SHORTADDRMODE &&
+         fcf->src_addr_mode != FRAME802154_NOADDR) ||
+        (fcf->dest_addr_mode != FRAME802154_NOADDR &&
+         fcf->src_addr_mode == FRAME802154_SHORTADDRMODE)) ){
+      dest_pan_id = 1;
     }
-    if(fcf->dest_addr_mode == 0 && fcf->dest_addr_mode == 1) {
-      /* No address included, include dest PAN ID conditionally */
-      if(!fcf->panid_compression) {
-        dest_pan_id = 1;
-      }
-    }
-    /* Remove the following rule the day rows 2 and 3 from table 2a are fixed: */
-    if(fcf->dest_addr_mode == 0 && fcf->dest_addr_mode == 0) {
-      /* Not meaningful, we include a PAN ID iff the compress flag is set, but
-       * this is what the standard currently stipulates */
-      dest_pan_id = fcf->panid_compression;
+
+    if(fcf->panid_compression == 0 &&
+       ((fcf->dest_addr_mode == FRAME802154_NOADDR &&
+         fcf->src_addr_mode == FRAME802154_LONGADDRMODE) ||
+        (fcf->dest_addr_mode == FRAME802154_NOADDR &&
+         fcf->src_addr_mode == FRAME802154_SHORTADDRMODE) ||
+        (fcf->dest_addr_mode == FRAME802154_SHORTADDRMODE &&
+         fcf->src_addr_mode == FRAME802154_SHORTADDRMODE) ||
+        (fcf->dest_addr_mode == FRAME802154_SHORTADDRMODE &&
+         fcf->src_addr_mode == FRAME802154_LONGADDRMODE) ||
+        (fcf->dest_addr_mode == FRAME802154_LONGADDRMODE &&
+         fcf->src_addr_mode == FRAME802154_SHORTADDRMODE))) {
+      src_pan_id = 1;
     }
+
   } else {
     /* No PAN ID in ACK */
     if(fcf->frame_type != FRAME802154_ACKFRAME) {
-      if(!fcf->panid_compression && fcf->src_addr_mode & 3) {
-        /* If compressed, don't inclue source PAN ID */
+      if(!fcf->panid_compression && (fcf->src_addr_mode & 3)) {
+        /* If compressed, don't include source PAN ID */
         src_pan_id = 1;
       }
       if(fcf->dest_addr_mode & 3) {
@@ -196,7 +205,7 @@ frame802154_has_panid(frame802154_fcf_t *fcf, int *has_src_pan_id, int *has_dest
 int
 frame802154_check_dest_panid(frame802154_t *frame)
 {
-  int has_dest_panid;
+  int has_dest_panid = 0;
 
   if(frame == NULL) {
     return 0;
@@ -295,7 +304,7 @@ field_len(frame802154_t *p, field_length_t *flen)
    * up to the caller. */
   if(p->fcf.frame_version < FRAME802154_IEEE802154E_2012) {
     /* Set PAN ID compression bit if src pan id matches dest pan id. */
-    if(p->fcf.dest_addr_mode & 3 && p->fcf.src_addr_mode & 3 &&
+    if((p->fcf.dest_addr_mode & 3) && (p->fcf.src_addr_mode & 3) &&
        p->src_pid == p->dest_pid) {
       p->fcf.panid_compression = 1;
     } else {
@@ -353,6 +362,20 @@ frame802154_hdrlen(frame802154_t *p)
   return 2 + flen.seqno_len + flen.dest_pid_len + flen.dest_addr_len +
          flen.src_pid_len + flen.src_addr_len + flen.aux_sec_len;
 }
+void
+frame802154_create_fcf(frame802154_fcf_t *fcf, uint8_t *buf)
+{
+  buf[0] = (fcf->frame_type & 7) |
+    ((fcf->security_enabled & 1) << 3) |
+    ((fcf->frame_pending & 1) << 4) |
+    ((fcf->ack_required & 1) << 5) |
+    ((fcf->panid_compression & 1) << 6);
+  buf[1] = ((fcf->sequence_number_suppression & 1)) |
+    ((fcf->ie_list_present & 1)) << 1 |
+    ((fcf->dest_addr_mode & 3) << 2) |
+    ((fcf->frame_version & 3) << 4) |
+    ((fcf->src_addr_mode & 3) << 6);
+}
 /*----------------------------------------------------------------------------*/
 /**
  *   \brief Creates a frame for transmission over the air.  This function is
@@ -379,17 +402,7 @@ frame802154_create(frame802154_t *p, uint8_t *buf)
 
   /* OK, now we have field lengths.  Time to actually construct */
   /* the outgoing frame, and store it in buf */
-  buf[0] = (p->fcf.frame_type & 7) |
-    ((p->fcf.security_enabled & 1) << 3) |
-    ((p->fcf.frame_pending & 1) << 4) |
-    ((p->fcf.ack_required & 1) << 5) |
-    ((p->fcf.panid_compression & 1) << 6);
-  buf[1] = ((p->fcf.sequence_number_suppression & 1)) |
-    ((p->fcf.ie_list_present & 1)) << 1 |
-    ((p->fcf.dest_addr_mode & 3) << 2) |
-    ((p->fcf.frame_version & 3) << 4) |
-    ((p->fcf.src_addr_mode & 3) << 6);
-
+  frame802154_create_fcf(&p->fcf, buf);
   pos = 2;
 
   /* Sequence number */
@@ -451,6 +464,28 @@ frame802154_create(frame802154_t *p, uint8_t *buf)
 
   return (int)pos;
 }
+
+void
+frame802154_parse_fcf(uint8_t *data, frame802154_fcf_t *pfcf)
+{
+  frame802154_fcf_t fcf;
+
+  /* decode the FCF */
+  fcf.frame_type = data[0] & 7;
+  fcf.security_enabled = (data[0] >> 3) & 1;
+  fcf.frame_pending = (data[0] >> 4) & 1;
+  fcf.ack_required = (data[0] >> 5) & 1;
+  fcf.panid_compression = (data[0] >> 6) & 1;
+
+  fcf.sequence_number_suppression = data[1] & 1;
+  fcf.ie_list_present = (data[1] >> 1) & 1;
+  fcf.dest_addr_mode = (data[1] >> 2) & 3;
+  fcf.frame_version = (data[1] >> 4) & 3;
+  fcf.src_addr_mode = (data[1] >> 6) & 3;
+
+  /* copy fcf */
+  memcpy(pfcf, &fcf, sizeof(frame802154_fcf_t));
+}
 /*----------------------------------------------------------------------------*/
 /**
  *   \brief Parses an input frame.  Scans the input frame to find each
@@ -480,19 +515,7 @@ frame802154_parse(uint8_t *data, int len, frame802154_t *pf)
   p = data;
 
   /* decode the FCF */
-  fcf.frame_type = p[0] & 7;
-  fcf.security_enabled = (p[0] >> 3) & 1;
-  fcf.frame_pending = (p[0] >> 4) & 1;
-  fcf.ack_required = (p[0] >> 5) & 1;
-  fcf.panid_compression = (p[0] >> 6) & 1;
-
-  fcf.sequence_number_suppression = p[1] & 1;
-  fcf.ie_list_present = (p[1] >> 1) & 1;
-  fcf.dest_addr_mode = (p[1] >> 2) & 3;
-  fcf.frame_version = (p[1] >> 4) & 3;
-  fcf.src_addr_mode = (p[1] >> 6) & 3;
-
-  /* copy fcf and seqNum */
+  frame802154_parse_fcf(p, &fcf);
   memcpy(&pf->fcf, &fcf, sizeof(frame802154_fcf_t));
   p += 2;                             /* Skip first two bytes */
 

core/net/mac/frame802154.h

@@ -207,8 +207,10 @@ typedef struct {
 /* Prototypes */
 
 int frame802154_hdrlen(frame802154_t *p);
+void frame802154_create_fcf(frame802154_fcf_t *fcf, uint8_t *buf);
 int frame802154_create(frame802154_t *p, uint8_t *buf);
 int frame802154_parse(uint8_t *data, int length, frame802154_t *pf);
+void frame802154_parse_fcf(uint8_t *data, frame802154_fcf_t *pfcf);
 
 /* Get current PAN ID */
 uint16_t frame802154_get_pan_id(void);

core/net/mac/frame802154e-ie.h

@@ -70,7 +70,7 @@ struct ieee802154_ies {
   uint16_t ie_mlme_len;
   /* Payload Short MLME IEs */
   uint8_t ie_tsch_synchronization_offset;
-  struct asn_t ie_asn;
+  struct tsch_asn_t ie_asn;
   uint8_t ie_join_priority;
   uint8_t ie_tsch_timeslot_id;
   uint16_t ie_tsch_timeslot[tsch_ts_elements_count];

core/net/mac/framer-802154.c

@@ -86,14 +86,16 @@ create_frame(int type, int do_create)
   params.fcf.frame_pending = packetbuf_attr(PACKETBUF_ATTR_PENDING);
   if(packetbuf_holds_broadcast()) {
     params.fcf.ack_required = 0;
+    /* Suppress seqno on broadcast if supported (frame v2 or more) */
+    params.fcf.sequence_number_suppression = FRAME802154_VERSION >= FRAME802154_IEEE802154E_2012;
   } else {
     params.fcf.ack_required = packetbuf_attr(PACKETBUF_ATTR_MAC_ACK);
+    params.fcf.sequence_number_suppression = FRAME802154_SUPPR_SEQNO;
   }
   /* We do not compress PAN ID in outgoing frames, i.e. include one PAN ID (dest by default)
    * There is one exception, seemingly a typo in Table 2a: rows 2 and 3: when there is no
    * source nor destination address, we have dest PAN ID iff compression is *set*. */
   params.fcf.panid_compression = 0;
-  params.fcf.sequence_number_suppression = FRAME802154_SUPPR_SEQNO;
 
   /* Insert IEEE 802.15.4 version bits. */
   params.fcf.frame_version = FRAME802154_VERSION;
@@ -171,7 +173,8 @@ create_frame(int type, int do_create)
    * Set up the source address using only the long address mode for
    * phase 1.
    */
-  linkaddr_copy((linkaddr_t *)&params.src_addr, &linkaddr_node_addr);
+  linkaddr_copy((linkaddr_t *)&params.src_addr,
+                packetbuf_addr(PACKETBUF_ADDR_SENDER));
 
   params.payload = packetbuf_dataptr();
   params.payload_len = packetbuf_datalen();

core/net/mac/mac-sequence.c

@@ -51,9 +51,16 @@
 
 struct seqno {
   linkaddr_t sender;
+  clock_time_t timestamp;
   uint8_t seqno;
 };
 
+#ifdef NETSTACK_CONF_MAC_SEQNO_MAX_AGE
+#define SEQNO_MAX_AGE NETSTACK_CONF_MAC_SEQNO_MAX_AGE
+#else /* NETSTACK_CONF_MAC_SEQNO_MAX_AGE */
+#define SEQNO_MAX_AGE (20 * CLOCK_SECOND)
+#endif /* NETSTACK_CONF_MAC_SEQNO_MAX_AGE */
+
 #ifdef NETSTACK_CONF_MAC_SEQNO_HISTORY
 #define MAX_SEQNOS NETSTACK_CONF_MAC_SEQNO_HISTORY
 #else /* NETSTACK_CONF_MAC_SEQNO_HISTORY */
@@ -66,6 +73,7 @@ int
 mac_sequence_is_duplicate(void)
 {
   int i;
+  clock_time_t now = clock_time();
 
   /*
    * Check for duplicate packet by comparing the sequence number of the incoming
@@ -75,8 +83,14 @@ mac_sequence_is_duplicate(void)
     if(linkaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_SENDER),
                     &received_seqnos[i].sender)) {
       if(packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO) == received_seqnos[i].seqno) {
-        /* Duplicate packet. */
+#if SEQNO_MAX_AGE > 0
+        if(now - received_seqnos[i].timestamp <= SEQNO_MAX_AGE) {
+          /* Duplicate packet. */
+          return 1;
+        }
+#else /* SEQNO_MAX_AGE > 0 */
         return 1;
+#endif /* SEQNO_MAX_AGE > 0 */
       }
       break;
     }
@@ -103,6 +117,7 @@ mac_sequence_register_seqno(void)
     memcpy(&received_seqnos[j], &received_seqnos[j - 1], sizeof(struct seqno));
   }
   received_seqnos[0].seqno = packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO);
+  received_seqnos[0].timestamp = clock_time();
   linkaddr_copy(&received_seqnos[0].sender,
                 packetbuf_addr(PACKETBUF_ADDR_SENDER));
 }

core/net/mac/nullrdc.c

@@ -46,10 +46,10 @@
 #include "net/rime/rimestats.h"
 #include <string.h>
 
-#if CONTIKI_TARGET_COOJA
+#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
 #include "lib/simEnvChange.h"
 #include "sys/cooja_mt.h"
-#endif /* CONTIKI_TARGET_COOJA */
+#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
 
 #define DEBUG 0
 #if DEBUG
@@ -158,10 +158,10 @@ send_one_packet(mac_callback_t sent, void *ptr)
           wt = RTIMER_NOW();
           watchdog_periodic();
           while(RTIMER_CLOCK_LT(RTIMER_NOW(), wt + ACK_WAIT_TIME)) {
-#if CONTIKI_TARGET_COOJA
+#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
             simProcessRunValue = 1;
             cooja_mt_yield();
-#endif /* CONTIKI_TARGET_COOJA */
+#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
           }
 
           ret = MAC_TX_NOACK;
@@ -176,10 +176,10 @@ send_one_packet(mac_callback_t sent, void *ptr)
               watchdog_periodic();
               while(RTIMER_CLOCK_LT(RTIMER_NOW(),
                                     wt + AFTER_ACK_DETECTED_WAIT_TIME)) {
-      #if CONTIKI_TARGET_COOJA
-                  simProcessRunValue = 1;
-                  cooja_mt_yield();
-      #endif /* CONTIKI_TARGET_COOJA */
+#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
+                simProcessRunValue = 1;
+                cooja_mt_yield();
+#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
               }
             }
 
@@ -195,8 +195,8 @@ send_one_packet(mac_callback_t sent, void *ptr)
               }
             }
           } else {
-	    PRINTF("nullrdc tx noack\n");
-	  }
+            PRINTF("nullrdc tx noack\n");
+          }
         }
         break;
       case RADIO_TX_COLLISION:
@@ -303,7 +303,7 @@ packet_input(void)
     }
 #endif /* RDC_WITH_DUPLICATE_DETECTION */
 #endif /* NULLRDC_802154_AUTOACK */
- 
+
 #if NULLRDC_SEND_802154_ACK
     {
       frame802154_t info154;

core/net/mac/tsch/README.md

@@ -1,8 +1,8 @@
-# IEEE 802.15.4e TSCH (TimeSlotted Channel Hopping)
+# IEEE 802.15.4-2015 TSCH and IETF 6TiSCH
 
 ## Overview
 
-TSCH is a MAC layer of the [IEEE 802.15.4e-2012 amendment][ieee802.15.4e-2012],
+Time Slotted Channel Hopping (TSCH) is a MAC layer of the [IEEE 802.15.4e-2012 amendment][ieee802.15.4e-2012],
 currently being integrated as part of the new IEEE 802.15.4-2015.
 [6TiSCH][ietf-6tisch-wg] is an IETF Working Group focused on IPv6 over TSCH.
 This is a Contiki implementation of TSCH and the 6TiSCH so-called "minimal configuration",
@@ -11,8 +11,11 @@ which defines how to run a basic RPL+TSCH network.
 It was developped by:
 * Simon Duquennoy, SICS, simonduq@sics.se, github user: [simonduq](https://github.com/simonduq)
 * Beshr Al Nahas, SICS (now Chalmers University), beshr@chalmers.se, github user: [beshrns](https://github.com/beshrns)
+* Atis Elsts, Univ. Bristol, atis.elsts@bristol.ac.uk, github user: [atiselsts](https://github.com/atiselsts)
 
-You can find an extensive evaluation of this implementation in our paper [*Orchestra: Robust Mesh Networks Through Autonomously Scheduled TSCH*](http://www.simonduquennoy.net/papers/duquennoy15orchestra.pdf), ACM SenSys'15.
+
+This implementation is presented in depth and evaluated in our paper: [*TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation*](http://www.simonduquennoy.net/papers/duquennoy17tsch.pdf), IEEE DCOSS'17.
+The scheduler Orchestra is detailled in [*Orchestra: Robust Mesh Networks Through Autonomously Scheduled TSCH*](http://www.simonduquennoy.net/papers/duquennoy15orchestra.pdf), ACM SenSys'15.
 
 ## Features
 
@@ -26,11 +29,12 @@ This implementation includes:
   * Standard TSCH link selection and slot operation (10ms slots by default)
   * Standard TSCH synchronization, including with ACK/NACK time correction Information Element
   * Standard TSCH queues and CSMA-CA mechanism
-  * Standard TSCH security
+  * Standard TSCH and 6TiSCH security
   * Standard 6TiSCH TSCH-RPL interaction (6TiSCH Minimal Configuration and Minimal Schedule)
   * A scheduling API to add/remove slotframes and links
   * A system for logging from TSCH timeslot operation interrupt, with postponed printout
   * Orchestra: an autonomous scheduler for TSCH+RPL networks
+  * A drift compensation mechanism
 
 It has been tested on the following platforms:
   * NXP JN516x (`jn516x`, tested on hardware)
@@ -38,7 +42,9 @@ It has been tested on the following platforms:
   * Zolertia Z1 (`z1`, tested in cooja only)
   * CC2538DK (`cc2538dk`, tested on hardware)
   * Zolertia Zoul (`zoul`, tested on hardware)
+  * OpenMote-CC2538 (`openmote-cc2538`, tested on hardware)
   * CC2650 (`srf06-cc26xx`, tested on hardware)
+  * Cooja mote (`cooja`, tested with cooja)
 
 This implementation was present at the ETSI Plugtest
 event in Prague in July 2015, and did successfully inter-operate with all
@@ -71,6 +77,7 @@ Implements the 6TiSCH minimal configuration K1-K2 keys pair.
 * `tsch-rpl.[ch]`: used for TSCH+RPL networks, to align TSCH and RPL states (preferred parent -> time source,
 rank -> join priority) as defined in the 6TiSCH minimal configuration.
 * `tsch-log.[ch]`: logging system for TSCH, including delayed messages for logging from slot operation interrupt.
+* `tsch-adaptive-timesync.c`: used to learn the relative drift to the node's time source and automatically compensate for it.
 
 Orchestra is implemented in:
 * `apps/orchestra`: see `apps/orchestra/README.md` for more information.
@@ -79,7 +86,7 @@ Orchestra is implemented in:
 
 A simple TSCH+RPL example is included under `examples/ipv6/rpl-tsch`.
 To use TSCH, first make sure your platform supports it.
-Currently, `jn516x`, `sky`, `z1`, `cc2538dk`, `zoul` and `srf06-cc26xx` are the supported platforms.
+Currently, `jn516x`, `sky`, `z1`, `cc2538dk`, `zoul`, `openmote-cc2538`, `srf06-cc26xx`, and `cooja` are the supported platforms.
 To add your own, we refer the reader to the next section.
 
 To add TSCH to your application, first include the TSCH module from your makefile with:
@@ -165,7 +172,7 @@ Finally, one can also implement his own scheduler, centralized or distributed, b
 ## Porting TSCH to a new platform
 
 Porting TSCH to a new platform requires a few new features in the radio driver, a number of timing-related configuration paramters.
-The easiest is probably to start from one of the existing port: `jn516x`, `sky`, `z1`, `cc2538dk`, `zoul`, `srf06-cc26xx`.
+The easiest is probably to start from one of the existing port: `jn516x`, `sky`, `z1`, `cc2538dk`, `zoul`, `openmote-cc2538`, `srf06-cc26xx`.
 
 ### Radio features required for TSCH
 
@@ -175,7 +182,7 @@ Instead, TSCH will poll the driver for incoming packets, from interrupt, exactly
 
 TSCH will check when initializing (in `tsch_init`) that the radio driver supports all required features, namely:
 * get and set Rx mode (`RADIO_PARAM_RX_MODE`) as follows:
-  * enable address filtering with `RADIO_RX_MODE_ADDRESS_FILTER`
+  * disable address filtering with `RADIO_RX_MODE_ADDRESS_FILTER`
   * disable auto-ack with `RADIO_RX_MODE_AUTOACK`
   * enable poll mode with `RADIO_RX_MODE_POLL_MODE`
 * get and set Tx mode (`RADIO_PARAM_TX_MODE`) as follows: 
@@ -199,6 +206,8 @@ too slow for the default 10ms timeslots.
 
 1. [IEEE 802.15.4e-2012 ammendment][ieee802.15.4e-2012]
 2. [IETF 6TiSCH Working Group][ietf-6tisch-wg]
+3. [A test procedure for Contiki timers in TSCH][tsch-sync-test]
 
 [ieee802.15.4e-2012]: http://standards.ieee.org/getieee802/download/802.15.4e-2012.pdf
 [ietf-6tisch-wg]: https://datatracker.ietf.org/wg/6tisch
+[tsch-sync-test]: https://github.com/abbypjoby/Contiki-Synchronisation-Test

core/net/mac/tsch/tsch-adaptive-timesync.c

@@ -38,8 +38,10 @@
  *
  */
 
-#include "tsch-adaptive-timesync.h"
-#include "tsch-log.h"
+#include "net/mac/tsch/tsch.h"
+#include "net/mac/tsch/tsch-conf.h"
+#include "net/mac/tsch/tsch-adaptive-timesync.h"
+#include "net/mac/tsch/tsch-log.h"
 #include <stdio.h>
 
 #if TSCH_ADAPTIVE_TIMESYNC
@@ -72,6 +74,10 @@ timesync_entry_add(int32_t val, uint32_t time_delta)
   buffer[pos] = val;
   if(timesync_entry_count < NUM_TIMESYNC_ENTRIES) {
     timesync_entry_count++;
+  } else {
+    /* We now have accurate drift compensation.
+     * Increase keep-alive timeout. */
+    tsch_set_ka_timeout(TSCH_MAX_KEEPALIVE_TIMEOUT);
   }
   pos = (pos + 1) % NUM_TIMESYNC_ENTRIES;
 

core/net/mac/tsch/tsch-asn.h

@@ -44,13 +44,13 @@
 /************ Types ***********/
 
 /* The ASN is an absolute slot number over 5 bytes. */
-struct asn_t {
+struct tsch_asn_t {
   uint32_t ls4b; /* least significant 4 bytes */
   uint8_t  ms1b; /* most significant 1 byte */
 };
 
 /* For quick modulo operation on ASN */
-struct asn_divisor_t {
+struct tsch_asn_divisor_t {
   uint16_t val; /* Divisor value */
   uint16_t asn_ms1b_remainder; /* Remainder of the operation 0x100000000 / val */
 };
@@ -58,38 +58,38 @@ struct asn_divisor_t {
 /************ Macros **********/
 
 /* Initialize ASN */
-#define ASN_INIT(asn, ms1b_, ls4b_) do { \
+#define TSCH_ASN_INIT(asn, ms1b_, ls4b_) do { \
     (asn).ms1b = (ms1b_); \
     (asn).ls4b = (ls4b_); \
 } while(0);
 
 /* Increment an ASN by inc (32 bits) */
-#define ASN_INC(asn, inc) do { \
+#define TSCH_ASN_INC(asn, inc) do { \
     uint32_t new_ls4b = (asn).ls4b + (inc); \
     if(new_ls4b < (asn).ls4b) { (asn).ms1b++; } \
     (asn).ls4b = new_ls4b; \
 } while(0);
 
 /* Decrement an ASN by inc (32 bits) */
-#define ASN_DEC(asn, dec) do { \
+#define TSCH_ASN_DEC(asn, dec) do { \
     uint32_t new_ls4b = (asn).ls4b - (dec); \
     if(new_ls4b > (asn).ls4b) { (asn).ms1b--; } \
     (asn).ls4b = new_ls4b; \
 } while(0);
 
 /* Returns the 32-bit diff between asn1 and asn2 */
-#define ASN_DIFF(asn1, asn2) \
+#define TSCH_ASN_DIFF(asn1, asn2) \
   ((asn1).ls4b - (asn2).ls4b)
 
 /* Initialize a struct asn_divisor_t */
-#define ASN_DIVISOR_INIT(div, val_) do { \
+#define TSCH_ASN_DIVISOR_INIT(div, val_) do { \
     (div).val = (val_); \
     (div).asn_ms1b_remainder = ((0xffffffff % (val_)) + 1) % (val_); \
 } while(0);
 
 /* Returns the result (16 bits) of a modulo operation on ASN,
  * with divisor being a struct asn_divisor_t */
-#define ASN_MOD(asn, div) \
+#define TSCH_ASN_MOD(asn, div) \
   ((uint16_t)((asn).ls4b % (div).val) \
    + (uint16_t)((asn).ms1b * (div).asn_ms1b_remainder % (div).val)) \
   % (div).val

core/net/mac/tsch/tsch-conf.h

@@ -174,7 +174,7 @@
 #ifdef TSCH_CONF_ADAPTIVE_TIMESYNC
 #define TSCH_ADAPTIVE_TIMESYNC TSCH_CONF_ADAPTIVE_TIMESYNC
 #else
-#define TSCH_ADAPTIVE_TIMESYNC 0
+#define TSCH_ADAPTIVE_TIMESYNC 1
 #endif
 
 /* HW frame filtering enabled */

core/net/mac/tsch/tsch-log.c

@@ -132,7 +132,7 @@ tsch_log_prepare_add(void)
   int log_index = ringbufindex_peek_put(&log_ringbuf);
   if(log_index != -1) {
     struct tsch_log_t *log = &log_array[log_index];
-    log->asn = current_asn;
+    log->asn = tsch_current_asn;
     log->link = current_link;
     return log;
   } else {

core/net/mac/tsch/tsch-log.h

@@ -81,7 +81,7 @@ struct tsch_log_t {
          tsch_log_rx,
          tsch_log_message
   } type;
-  struct asn_t asn;
+  struct tsch_asn_t asn;
   struct tsch_link *link;
   union {
     char message[48];

core/net/mac/tsch/tsch-packet.c

@@ -66,7 +66,7 @@
 /* Construct enhanced ACK packet and return ACK length */
 int
 tsch_packet_create_eack(uint8_t *buf, int buf_size,
-    linkaddr_t *dest_addr, uint8_t seqno, int16_t drift, int nack)
+                        const linkaddr_t *dest_addr, uint8_t seqno, int16_t drift, int nack)
 {
   int ret;
   uint8_t curr_len = 0;
@@ -85,12 +85,12 @@ tsch_packet_create_eack(uint8_t *buf, int buf_size,
   p.seq = seqno;
 #if TSCH_PACKET_EACK_WITH_DEST_ADDR
   if(dest_addr != NULL) {
-    p.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
+    p.fcf.dest_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;;
     linkaddr_copy((linkaddr_t *)&p.dest_addr, dest_addr);
   }
 #endif
 #if TSCH_PACKET_EACK_WITH_SRC_ADDR
-  p.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
+  p.fcf.src_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;;
   p.src_pid = IEEE802154_PANID;
   linkaddr_copy((linkaddr_t *)&p.src_addr, &linkaddr_node_addr);
 #endif
@@ -125,7 +125,7 @@ tsch_packet_create_eack(uint8_t *buf, int buf_size,
 /* Parse enhanced ACK packet, extract drift and nack */
 int
 tsch_packet_parse_eack(const uint8_t *buf, int buf_size,
-    uint8_t seqno, frame802154_t *frame, struct ieee802154_ies *ies, uint8_t *hdr_len)
+                       uint8_t seqno, frame802154_t *frame, struct ieee802154_ies *ies, uint8_t *hdr_len)
 {
   uint8_t curr_len = 0;
   int ret;
@@ -155,8 +155,8 @@ tsch_packet_parse_eack(const uint8_t *buf, int buf_size,
 
   /* Check destination address (if any) */
   if(frame802154_extract_linkaddr(frame, NULL, &dest) == 0 ||
-      (!linkaddr_cmp(&dest, &linkaddr_node_addr)
-          && !linkaddr_cmp(&dest, &linkaddr_null))) {
+     (!linkaddr_cmp(&dest, &linkaddr_node_addr)
+      && !linkaddr_cmp(&dest, &linkaddr_null))) {
     return 0;
   }
 
@@ -189,8 +189,8 @@ tsch_packet_parse_eack(const uint8_t *buf, int buf_size,
 /*---------------------------------------------------------------------------*/
 /* Create an EB packet */
 int
-tsch_packet_create_eb(uint8_t *buf, int buf_size, uint8_t seqno,
-    uint8_t *hdr_len, uint8_t *tsch_sync_ie_offset)
+tsch_packet_create_eb(uint8_t *buf, int buf_size,
+                      uint8_t *hdr_len, uint8_t *tsch_sync_ie_offset)
 {
   int ret = 0;
   uint8_t curr_len = 0;
@@ -208,10 +208,9 @@ tsch_packet_create_eb(uint8_t *buf, int buf_size, uint8_t seqno,
   p.fcf.frame_type = FRAME802154_BEACONFRAME;
   p.fcf.ie_list_present = 1;
   p.fcf.frame_version = FRAME802154_IEEE802154E_2012;
-  p.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
+  p.fcf.src_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;
   p.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
-  p.seq = seqno;
-  p.fcf.sequence_number_suppression = FRAME802154_SUPPR_SEQNO;
+  p.fcf.sequence_number_suppression = 1;
   /* It is important not to compress PAN ID, as this would result in not including either
    * source nor destination PAN ID, leaving potential joining devices unaware of the PAN ID. */
   p.fcf.panid_compression = 0;
@@ -339,7 +338,7 @@ int
 tsch_packet_update_eb(uint8_t *buf, int buf_size, uint8_t tsch_sync_ie_offset)
 {
   struct ieee802154_ies ies;
-  ies.ie_asn = current_asn;
+  ies.ie_asn = tsch_current_asn;
   ies.ie_join_priority = tsch_join_priority;
   frame80215e_create_ie_tsch_synchronization(buf+tsch_sync_ie_offset, buf_size-tsch_sync_ie_offset, &ies);
   return 1;
@@ -348,7 +347,7 @@ tsch_packet_update_eb(uint8_t *buf, int buf_size, uint8_t tsch_sync_ie_offset)
 /* Parse a IEEE 802.15.4e TSCH Enhanced Beacon (EB) */
 int
 tsch_packet_parse_eb(const uint8_t *buf, int buf_size,
-    frame802154_t *frame, struct ieee802154_ies *ies, uint8_t *hdr_len, int frame_without_mic)
+                     frame802154_t *frame, struct ieee802154_ies *ies, uint8_t *hdr_len, int frame_without_mic)
 {
   uint8_t curr_len = 0;
   int ret;

core/net/mac/tsch/tsch-packet.h

@@ -88,13 +88,13 @@ by default, useful in case of duplicate seqno */
 
 /* Construct enhanced ACK packet and return ACK length */
 int tsch_packet_create_eack(uint8_t *buf, int buf_size,
-    linkaddr_t *dest_addr, uint8_t seqno, int16_t drift, int nack);
+    const linkaddr_t *dest_addr, uint8_t seqno, int16_t drift, int nack);
 /* Parse enhanced ACK packet, extract drift and nack */
 int tsch_packet_parse_eack(const uint8_t *buf, int buf_size,
     uint8_t seqno, frame802154_t *frame, struct ieee802154_ies *ies, uint8_t *hdr_len);
 /* Create an EB packet */
 int tsch_packet_create_eb(uint8_t *buf, int buf_size,
-    uint8_t seqno, uint8_t *hdr_len, uint8_t *tsch_sync_ie_ptr);
+    uint8_t *hdr_len, uint8_t *tsch_sync_ie_ptr);
 /* Update ASN in EB packet */
 int tsch_packet_update_eb(uint8_t *buf, int buf_size, uint8_t tsch_sync_ie_offset);
 /* Parse EB and extract ASN and join priority */

core/net/mac/tsch/tsch-private.h

@@ -48,6 +48,10 @@
 #include "net/linkaddr.h"
 #include "net/mac/tsch/tsch-asn.h"
 #include "net/mac/tsch/tsch-conf.h"
+#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
+#include "lib/simEnvChange.h"
+#include "sys/cooja_mt.h"
+#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
 
 /************ Types ***********/
 
@@ -76,12 +80,12 @@ extern const linkaddr_t tsch_broadcast_address;
 /* The address we use to identify EB queue */
 extern const linkaddr_t tsch_eb_address;
 /* The current Absolute Slot Number (ASN) */
-extern struct asn_t current_asn;
+extern struct tsch_asn_t tsch_current_asn;
 extern uint8_t tsch_join_priority;
 extern struct tsch_link *current_link;
 /* TSCH channel hopping sequence */
 extern uint8_t tsch_hopping_sequence[TSCH_HOPPING_SEQUENCE_MAX_LEN];
-extern struct asn_divisor_t tsch_hopping_sequence_length;
+extern struct tsch_asn_divisor_t tsch_hopping_sequence_length;
 /* TSCH timeslot timing (in rtimer ticks) */
 extern rtimer_clock_t tsch_timing[tsch_ts_elements_count];
 
@@ -109,7 +113,14 @@ void tsch_disassociate(void);
 #define TSCH_CLOCK_TO_SLOTS(c, timeslot_length) (TSCH_CLOCK_TO_TICKS(c) / timeslot_length)
 
 /* Wait for a condition with timeout t0+offset. */
+#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
+#define BUSYWAIT_UNTIL_ABS(cond, t0, offset) \
+  while(!(cond) && RTIMER_CLOCK_LT(RTIMER_NOW(), (t0) + (offset))) { \
+    simProcessRunValue = 1; \
+    cooja_mt_yield(); \
+  };
+#else
 #define BUSYWAIT_UNTIL_ABS(cond, t0, offset) \
   while(!(cond) && RTIMER_CLOCK_LT(RTIMER_NOW(), (t0) + (offset))) ;
-
+#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
 #endif /* __TSCH_PRIVATE_H__ */

core/net/mac/tsch/tsch-queue.c

@@ -163,6 +163,13 @@ tsch_queue_update_time_source(const linkaddr_t *new_addr)
         /* Update time source */
         if(new_time_src != NULL) {
           new_time_src->is_time_source = 1;
+          /* (Re)set keep-alive timeout */
+          tsch_set_ka_timeout(TSCH_KEEPALIVE_TIMEOUT);
+          /* Start sending keepalives */
+          tsch_schedule_keepalive();
+        } else {
+          /* Stop sending keepalives */
+          tsch_set_ka_timeout(0);
         }
 
         if(old_time_src != NULL) {
@@ -195,6 +202,7 @@ tsch_queue_flush_nbr_queue(struct tsch_neighbor *n)
       /* Free packet queuebuf */
       tsch_queue_free_packet(p);
     }
+    PRINTF("TSCH-queue: packet is deleted packet=%p\n", p);
   }
 }
 /*---------------------------------------------------------------------------*/
@@ -246,6 +254,8 @@ tsch_queue_add_packet(const linkaddr_t *addr, mac_callback_t sent, void *ptr)
             /* Add to ringbuf (actual add committed through atomic operation) */
             n->tx_array[put_index] = p;
             ringbufindex_put(&n->tx_ringbuf);
+            PRINTF("TSCH-queue: packet is added put_index=%u, packet=%p\n",
+                   put_index, p);
             return p;
           } else {
             memb_free(&packet_memb, p);
@@ -281,6 +291,7 @@ tsch_queue_remove_packet_from_queue(struct tsch_neighbor *n)
       /* Get and remove packet from ringbuf (remove committed through an atomic operation */
       int16_t get_index = ringbufindex_get(&n->tx_ringbuf);
       if(get_index != -1) {
+        PRINTF("TSCH-queue: packet is removed, get_index=%u\n", get_index);
         return n->tx_array[get_index];
       } else {
         return NULL;