238 lines
7.0 KiB
C
238 lines
7.0 KiB
C
/*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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#include "contiki.h"
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#include "net/ip/uip.h"
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#include "net/ipv6/uip-ds6.h"
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#include "net/ip/uip-udp-packet.h"
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#include "net/rpl/rpl.h"
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#include "dev/serial-line.h"
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#if CONTIKI_TARGET_Z1
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#include "dev/uart0.h"
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#else
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#include "dev/uart1.h"
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#endif
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#include "collect-common.h"
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#include "collect-view.h"
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#include <stdio.h>
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#include <string.h>
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#define UDP_CLIENT_PORT 8775
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#define UDP_SERVER_PORT 5688
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#define DEBUG DEBUG_PRINT
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#include "net/ip/uip-debug.h"
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static struct uip_udp_conn *client_conn;
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static uip_ipaddr_t server_ipaddr;
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/*---------------------------------------------------------------------------*/
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PROCESS(udp_client_process, "UDP client process");
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AUTOSTART_PROCESSES(&udp_client_process, &collect_common_process);
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/*---------------------------------------------------------------------------*/
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void
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collect_common_set_sink(void)
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{
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/* A udp client can never become sink */
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}
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/*---------------------------------------------------------------------------*/
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void
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collect_common_net_print(void)
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{
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rpl_dag_t *dag;
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uip_ds6_route_t *r;
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/* Let's suppose we have only one instance */
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dag = rpl_get_any_dag();
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if(dag->preferred_parent != NULL) {
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PRINTF("Preferred parent: ");
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PRINT6ADDR(rpl_get_parent_ipaddr(dag->preferred_parent));
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PRINTF("\n");
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}
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for(r = uip_ds6_route_head();
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r != NULL;
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r = uip_ds6_route_next(r)) {
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PRINT6ADDR(&r->ipaddr);
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}
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PRINTF("---\n");
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}
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/*---------------------------------------------------------------------------*/
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static void
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tcpip_handler(void)
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{
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if(uip_newdata()) {
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/* Ignore incoming data */
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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collect_common_send(void)
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{
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static uint8_t seqno;
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struct {
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uint8_t seqno;
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uint8_t for_alignment;
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struct collect_view_data_msg msg;
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} msg;
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/* struct collect_neighbor *n; */
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uint16_t parent_etx;
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uint16_t rtmetric;
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uint16_t num_neighbors;
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uint16_t beacon_interval;
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rpl_parent_t *preferred_parent;
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linkaddr_t parent;
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rpl_dag_t *dag;
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if(client_conn == NULL) {
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/* Not setup yet */
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return;
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}
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memset(&msg, 0, sizeof(msg));
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seqno++;
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if(seqno == 0) {
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/* Wrap to 128 to identify restarts */
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seqno = 128;
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}
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msg.seqno = seqno;
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linkaddr_copy(&parent, &linkaddr_null);
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parent_etx = 0;
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/* Let's suppose we have only one instance */
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dag = rpl_get_any_dag();
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if(dag != NULL) {
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preferred_parent = dag->preferred_parent;
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if(preferred_parent != NULL) {
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uip_ds6_nbr_t *nbr;
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nbr = uip_ds6_nbr_lookup(rpl_get_parent_ipaddr(preferred_parent));
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if(nbr != NULL) {
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/* Use parts of the IPv6 address as the parent address, in reversed byte order. */
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parent.u8[LINKADDR_SIZE - 1] = nbr->ipaddr.u8[sizeof(uip_ipaddr_t) - 2];
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parent.u8[LINKADDR_SIZE - 2] = nbr->ipaddr.u8[sizeof(uip_ipaddr_t) - 1];
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parent_etx = rpl_get_parent_rank((uip_lladdr_t *) uip_ds6_nbr_get_ll(nbr)) / 2;
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}
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}
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rtmetric = dag->rank;
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beacon_interval = (uint16_t) ((2L << dag->instance->dio_intcurrent) / 1000);
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num_neighbors = uip_ds6_nbr_num();
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} else {
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rtmetric = 0;
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beacon_interval = 0;
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num_neighbors = 0;
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}
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/* num_neighbors = collect_neighbor_list_num(&tc.neighbor_list); */
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collect_view_construct_message(&msg.msg, &parent,
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parent_etx, rtmetric,
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num_neighbors, beacon_interval);
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uip_udp_packet_sendto(client_conn, &msg, sizeof(msg),
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&server_ipaddr, UIP_HTONS(UDP_SERVER_PORT));
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}
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/*---------------------------------------------------------------------------*/
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void
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collect_common_net_init(void)
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{
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#if CONTIKI_TARGET_Z1
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uart0_set_input(serial_line_input_byte);
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#else
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uart1_set_input(serial_line_input_byte);
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#endif
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serial_line_init();
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}
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/*---------------------------------------------------------------------------*/
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static void
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print_local_addresses(void)
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{
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int i;
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uint8_t state;
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PRINTF("Client IPv6 addresses: ");
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for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
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state = uip_ds6_if.addr_list[i].state;
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if(uip_ds6_if.addr_list[i].isused &&
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(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
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PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
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PRINTF("\n");
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/* hack to make address "final" */
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if (state == ADDR_TENTATIVE) {
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uip_ds6_if.addr_list[i].state = ADDR_PREFERRED;
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}
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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set_global_address(void)
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{
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uip_ipaddr_t ipaddr;
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uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
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uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
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/* set server address */
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uip_ip6addr(&server_ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 1);
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(udp_client_process, ev, data)
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{
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PROCESS_BEGIN();
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PROCESS_PAUSE();
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set_global_address();
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PRINTF("UDP client process started\n");
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print_local_addresses();
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/* new connection with remote host */
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client_conn = udp_new(NULL, UIP_HTONS(UDP_SERVER_PORT), NULL);
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udp_bind(client_conn, UIP_HTONS(UDP_CLIENT_PORT));
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PRINTF("Created a connection with the server ");
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PRINT6ADDR(&client_conn->ripaddr);
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PRINTF(" local/remote port %u/%u\n",
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UIP_HTONS(client_conn->lport), UIP_HTONS(client_conn->rport));
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while(1) {
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PROCESS_YIELD();
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if(ev == tcpip_event) {
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tcpip_handler();
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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