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Merge pull request #495 from nfi/contrib/lwm2m-ipso-object-server-example

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Updated lwm2m-ipso-object server-example for latest RPL/CoAP APIs
This commit is contained in:
Simon Duquennoy 2018-05-09 21:07:43 +02:00 committed by GitHub
commit e05e0d08bd
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 110 additions and 110 deletions
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13
examples/lwm2m-ipso-objects/Makefile
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@ -12,16 +12,3 @@ MODULES += os/services/ipso-objects
CONTIKI=../..
include $(CONTIKI)/Makefile.include
# border router rules
$(CONTIKI)/tools/tunslip6: $(CONTIKI)/tools/tunslip6.c
(cd $(CONTIKI)/tools && $(MAKE) tunslip6)
connect-router: $(CONTIKI)/tools/tunslip6
sudo $(CONTIKI)/tools/tunslip6 aaaa::1/64
connect-router-cooja: $(CONTIKI)/tools/tunslip6
sudo $(CONTIKI)/tools/tunslip6 -a 127.0.0.1 -p 60001 aaaa::1/64
connect-router-native: $(CONTIKI)/examples/native-border-router/border-router.native
sudo $(CONTIKI)/examples/native-border-router/border-router.native -a 127.0.0.1 -p 60001 aaaa::1/64

4
examples/lwm2m-ipso-objects/README.md
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@ -3,8 +3,8 @@ LWM2M with IPSO Objects Example
This is an OMA LWM2M example implementing IPSO Objects.
It can connect to a Leshan server out-of-the-box.
Important configuration paramters:
* `LWM2M_SERVER_ADDRESS`: the address of the server to register to (or bosstrap from)
Important configuration parameters:
* `LWM2M_SERVER_ADDRESS`: the address of the server to register to (or bootstrap from)
* `REGISTER_WITH_LWM2M_BOOTSTRAP_SERVER`: set to bootstrap via `LWM2M_SERVER_ADDRESS` and then obtain the registration server address
A tutorial for setting up this example is provided on the wiki.

199
examples/lwm2m-ipso-objects/example-server.c
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@ -38,20 +38,24 @@
#include "contiki.h"
#include "net/ipv6/uip.h"
#include "net/ipv6/uip-ds6.h"
#include "net/netstack.h"
#include "net/routing/routing.h"
#include "coap-constants.h"
#include "coap-engine.h"
#include "coap-transport.h"
#include "coap-blocking-api.h"
#include "lwm2m-engine.h"
#include "lwm2m-tlv.h"
#include "dev/serial-line.h"
#include "serial-protocol.h"
#include <stdbool.h>
#define DEBUG DEBUG_PRINT
#include "net/ipv6/uip-debug.h"
#define REMOTE_PORT UIP_HTONS(COAP_DEFAULT_PORT)
#define EVENT_RUN_NOW 0
#define URL_WELL_KNOWN ".well-known/core"
#define URL_DEVICE_MODEL "/3/0/1"
#define URL_DEVICE_FIRMWARE_VERSION "/3/0/3"
@ -63,8 +67,8 @@
#define NODE_HAS_TYPE (1 << 0)
struct node {
uip_ipaddr_t ipaddr;
char type[32];
coap_endpoint_t endpoint;
char type[64];
uint8_t flags;
uint8_t retries;
};
@ -86,13 +90,15 @@ add_node(const uip_ipaddr_t *addr)
{
int i;
for(i = 0; i < node_count; i++) {
if(uip_ipaddr_cmp(&nodes[i].ipaddr, addr)) {
if(uip_ipaddr_cmp(&nodes[i].endpoint.ipaddr, addr)) {
/* Node already added */
return &nodes[i];
}
}
if(node_count < MAX_NODES) {
uip_ipaddr_copy(&nodes[node_count].ipaddr, addr);
memset(&nodes[node_count].endpoint, 0, sizeof(coap_endpoint_t));
uip_ipaddr_copy(&nodes[node_count].endpoint.ipaddr, addr);
nodes[node_count].endpoint.port = REMOTE_PORT;
return &nodes[node_count++];
}
return NULL;
@ -107,13 +113,13 @@ set_value(const uip_ipaddr_t *addr, char *uri, char *value)
printf(" URI: %s Value: %s\n", uri, value);
for(i = 0; i < node_count; i++) {
if(uip_ipaddr_cmp(&nodes[i].ipaddr, addr)) {
if(uip_ipaddr_cmp(&nodes[i].endpoint.ipaddr, addr)) {
/* setup command */
current_target = &nodes[i];
current_request = COAP_PUT;
strncpy(current_uri, uri, sizeof(current_uri) - 1);
strncpy(current_value, value, sizeof(current_value) - 1);
process_poll(&router_process);
process_post(&router_process, EVENT_RUN_NOW, NULL);
break;
}
}
@ -128,13 +134,13 @@ get_value(const uip_ipaddr_t *addr, char *uri)
printf(" URI: %s\n", uri);
for(i = 0; i < node_count; i++) {
if(uip_ipaddr_cmp(&nodes[i].ipaddr, addr)) {
if(uip_ipaddr_cmp(&nodes[i].endpoint.ipaddr, addr)) {
/* setup command */
current_target = &nodes[i];
current_request = COAP_GET;
strncpy(current_uri, uri, sizeof(current_uri) - 1);
current_value[0] = 0;
process_poll(&router_process);
process_post(&router_process, EVENT_RUN_NOW, NULL);
break;
}
}
@ -151,7 +157,7 @@ print_node_list(void)
printf(";");
}
printf("%s,", nodes[i].type);
uip_debug_ipaddr_print(&nodes[i].ipaddr);
uip_debug_ipaddr_print(&nodes[i].endpoint.ipaddr);
}
}
printf("\n");
@ -162,7 +168,7 @@ print_node_list(void)
* handle responses.
*/
static void
client_chunk_handler(void *response)
client_chunk_handler(coap_message_t *response)
{
const uint8_t *chunk;
unsigned int format;
@ -172,7 +178,9 @@ client_chunk_handler(void *response)
/* if(len > 0) { */
/* printf("|%.*s (%d,%d)", len, (char *)chunk, len, format); */
/* } */
if(current_target != NULL && fetching_type) {
if(response->code >= BAD_REQUEST_4_00) {
PRINTF("\nReceived error %u: %.*s\n", response->code, len, (char *)chunk);
} else if(current_target != NULL && fetching_type) {
if(len > sizeof(current_target->type) - 1) {
len = sizeof(current_target->type) - 1;
}
@ -181,7 +189,7 @@ client_chunk_handler(void *response)
current_target->flags |= NODE_HAS_TYPE;
PRINTF("\nNODE ");
PRINT6ADDR(&current_target->ipaddr);
PRINT6ADDR(&current_target->endpoint.ipaddr);
PRINTF(" HAS TYPE %s\n", current_target->type);
} else {
/* otherwise update the current value */
@ -193,7 +201,9 @@ client_chunk_handler(void *response)
/* tlv.type, tlv.length, tlv.id, tlv.value[0]); */
int value = lwm2m_tlv_get_int32(&tlv);
snprintf(current_value, sizeof(current_value), "%d", value);
snprintf(current_value, sizeof(current_value) - 1, "%d", value);
} else {
PRINTF("Failed to parse LWM2M TLV\n");
}
} else {
if(len > sizeof(current_value) - 1) {
@ -205,85 +215,48 @@ client_chunk_handler(void *response)
}
}
/*---------------------------------------------------------------------------*/
static void
setup_network(void)
#if UIP_CONF_IPV6_RPL
static bool
check_rpl_routes(void)
{
uip_ipaddr_t ipaddr;
struct uip_ds6_addr *root_if;
rpl_dag_t *dag;
int i;
uint8_t state;
uip_sr_node_t *link;
uip_ipaddr_t child_ipaddr;
uip_ipaddr_t parent_ipaddr;
#if UIP_CONF_ROUTER
/**
* The choice of server address determines its 6LoWPAN header compression.
* Obviously the choice made here must also be selected in udp-client.c.
*
* For correct Wireshark decoding using a sniffer, add the /64 prefix to the 6LowPAN protocol preferences,
* e.g. set Context 0 to fd00::. At present Wireshark copies Context/128 and then overwrites it.
* (Setting Context 0 to fd00::1111:2222:3333:4444 will report a 16 bit compressed address of fd00::1111:22ff:fe33:xxxx)
* Note Wireshark's IPCMV6 checksum verification depends on the correct uncompressed addresses.
*/
#if 0
/* Mode 1 - 64 bits inline */
uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 1);
#elif 1
/* Mode 2 - 16 bits inline */
uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0x00ff, 0xfe00, 1);
#else
/* Mode 3 - derived from link local (MAC) address */
uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
#endif
/* Our routing links */
for(link = uip_sr_node_head(); link != NULL; link = uip_sr_node_next(link)) {
NETSTACK_ROUTING.get_sr_node_ipaddr(&child_ipaddr, link);
NETSTACK_ROUTING.root_set_prefix(&ipaddr, &ipaddr);
NETSTACK_ROUTING.root_start();
#endif /* UIP_CONF_ROUTER */
if(link->parent == NULL) {
/* Igore the DAG root */
continue;
}
PRINTF("IPv6 addresses: ");
for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
state = uip_ds6_if.addr_list[i].state;
if(state == ADDR_TENTATIVE || state == ADDR_PREFERRED) {
PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
current_target = add_node(&child_ipaddr);
if(current_target == NULL ||
(current_target->flags & NODE_HAS_TYPE) != 0 ||
current_target->retries > 5) {
continue;
}
NETSTACK_ROUTING.get_sr_node_ipaddr(&parent_ipaddr, link->parent);
PRINTF(" ");
PRINT6ADDR(&child_ipaddr);
PRINTF(" -> ");
PRINT6ADDR(&parent_ipaddr);
PRINTF("\n");
/* hack to make address "final" */
if (state == ADDR_TENTATIVE) {
uip_ds6_if.addr_list[i].state = ADDR_PREFERRED;
}
}
return true;
}
return false;
}
#endif /* UIP_CONF_IPV6_RPL */
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(router_process, ev, data)
#if (UIP_MAX_ROUTES != 0)
static bool
check_routes(void)
{
/* This way the message can be treated as pointer as usual. */
static coap_message_t request[1];
static struct etimer timer;
uip_ds6_route_t *r;
uip_ipaddr_t *nexthop;
int n;
PROCESS_BEGIN();
PROCESS_PAUSE();
/* receives all CoAP messages */
coap_engine_init();
setup_network();
while(1) {
etimer_set(&timer, CLOCK_SECOND * 5);
PROCESS_YIELD();
/* Handle serial line input */
if(ev == serial_line_event_message) {
serial_protocol_input((char *) data);
}
if(etimer_expired(&timer)) {
current_target = NULL;
n = 0;
for(r = uip_ds6_route_head(); r != NULL; r = uip_ds6_route_next(r)) {
current_target = add_node(&r->ipaddr);
if(current_target == NULL ||
@ -297,14 +270,50 @@ PROCESS_THREAD(router_process, ev, data)
nexthop = uip_ds6_route_nexthop(r);
if(nexthop != NULL) {
PRINT6ADDR(nexthop);
PRINTF("\n");
} else {
PRINTF("-");
}
PRINTF("\n");
n++;
break;
return true;
}
return false;
}
#endif /* (UIP_MAX_ROUTES != 0) */
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(router_process, ev, data)
{
/* This way the message can be treated as pointer as usual. */
static coap_message_t request[1];
static struct etimer timer;
PROCESS_BEGIN();
/* receives all CoAP messages */
coap_engine_init();
/* Initialize DAG root */
NETSTACK_ROUTING.root_start();
while(1) {
etimer_set(&timer, CLOCK_SECOND * 5);
PROCESS_YIELD();
/* Handle serial line input */
if(ev == serial_line_event_message) {
serial_protocol_input((char *) data);
}
if(etimer_expired(&timer)) {
current_target = NULL;
#if UIP_CONF_IPV6_RPL
check_rpl_routes();
#endif /* UIP_CONF_IPV6_RPL */
#if (UIP_MAX_ROUTES != 0)
if(current_target == NULL) {
check_routes();
}
#endif /* (UIP_MAX_ROUTES != 0) */
}
/* This is a node type discovery */
@ -319,15 +328,15 @@ PROCESS_THREAD(router_process, ev, data)
current_target->retries++;
PRINTF("CoAP request to [");
PRINT6ADDR(&current_target->ipaddr);
PRINTF("]:%u (%u tx)\n", UIP_HTONS(REMOTE_PORT),
PRINT6ADDR(&current_target->endpoint.ipaddr);
PRINTF("]:%u (%u tx)\n", UIP_HTONS(current_target->endpoint.port),
current_target->retries);
fetching_type = 1;
COAP_BLOCKING_REQUEST(&current_target->ipaddr, REMOTE_PORT, request,
COAP_BLOCKING_REQUEST(&current_target->endpoint, request,
client_chunk_handler);
fetching_type = 0;
strncpy(current_uri, URL_LIGHT_CONTROL, sizeof(current_uri));
strncpy(current_uri, URL_LIGHT_CONTROL, sizeof(current_uri) - 1);
printf("\n--Done--\n");
}
@ -344,10 +353,11 @@ PROCESS_THREAD(router_process, ev, data)
}
PRINTF("CoAP request to [");
PRINT6ADDR(&current_target->ipaddr);
PRINTF("]:%u %s\n", UIP_HTONS(REMOTE_PORT), current_uri);
PRINT6ADDR(&current_target->endpoint.ipaddr);
PRINTF("]:%u %s\n", UIP_HTONS(current_target->endpoint.port),
current_uri);
COAP_BLOCKING_REQUEST(&current_target->ipaddr, REMOTE_PORT, request,
COAP_BLOCKING_REQUEST(&current_target->endpoint, request,
client_chunk_handler);
/* print out result of command */
@ -356,13 +366,12 @@ PROCESS_THREAD(router_process, ev, data)
} else {
printf("g ");
}
uip_debug_ipaddr_print(&current_target->ipaddr);
uip_debug_ipaddr_print(&current_target->endpoint.ipaddr);
printf(" %s %s\n", current_uri, current_value);
current_target = NULL;
current_uri[0] = 0;
current_value[0] = 0;
}
}

6
examples/lwm2m-ipso-objects/serial-protocol.c
View File

@ -60,7 +60,7 @@ find_next_sep(const char *str, char sep, int pos)
/*
* l - list all discovered devices
* s - set <IP> <URI> <value>
* d - get <IP> <URI>
* g - get <IP> <URI>
*/
void
serial_protocol_input(char *data)
@ -119,8 +119,12 @@ serial_protocol_input(char *data)
}
break;
}
case '\0':
/* Ignore empty lines */
break;
default:
printf("Unknown command\n");
}
printf("> ");
}
/*---------------------------------------------------------------------------*/