Changes in RPL implementation :
- Structural modification of RPL data storage. - Support multiple gateways (multiple DODAG-ID with a unique InstanceID) - Use Lollipop counters - Add leaf-only configuration option for RPL Bugfix : - Correctly send "Grounded" flag in DIO
This commit is contained in:
Vincent Brillault
parent
2ac91d53b5
commit
dc9cbe647d
15 changed files with 1497 additions and 555 deletions
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@ -57,6 +57,15 @@ rpl_stats_t rpl_stats;
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/************************************************************************/
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extern uip_ds6_route_t uip_ds6_routing_table[UIP_DS6_ROUTE_NB];
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#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define UIP_EXT_BUF ((struct uip_ext_hdr *)&uip_buf[uip_l2_l3_hdr_len])
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#define UIP_HBHO_BUF ((struct uip_hbho_hdr *)&uip_buf[uip_l2_l3_hdr_len])
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#define UIP_HBHO_NEXT_BUF ((struct uip_ext_hdr *)&uip_buf[uip_l2_l3_hdr_len + RPL_OP_BY_OP_LEN])
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#define UIP_EXT_HDR_OPT_BUF ((struct uip_ext_hdr_opt *)&uip_buf[uip_l2_l3_hdr_len + uip_ext_opt_offset])
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#define UIP_EXT_HDR_OPT_PADN_BUF ((struct uip_ext_hdr_opt_padn *)&uip_buf[uip_l2_l3_hdr_len + uip_ext_opt_offset])
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#define UIP_EXT_HDR_OPT_RPL_BUF ((struct uip_ext_hdr_opt_rpl *)&uip_buf[uip_l2_l3_hdr_len + uip_ext_opt_offset])
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/************************************************************************/
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void
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rpl_purge_routes(void)
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@ -86,6 +95,23 @@ rpl_remove_routes(rpl_dag_t *dag)
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}
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}
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/************************************************************************/
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void
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rpl_remove_routes_by_nexthop(uip_ipaddr_t *nexthop, rpl_dag_t *dag)
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{
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uip_ds6_route_t *locroute;
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for(locroute = uip_ds6_routing_table;
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locroute < uip_ds6_routing_table + UIP_DS6_ROUTE_NB;
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locroute++) {
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if(locroute->isused
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&& uip_ipaddr_cmp(&locroute->nexthop, nexthop)
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&& locroute->state.dag == dag) {
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locroute->isused = 0;
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}
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}
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ANNOTATE("#L %u 0\n",nexthop->u8[sizeof(uip_ipaddr_t) - 1]);
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}
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/************************************************************************/
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uip_ds6_route_t *
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rpl_add_route(rpl_dag_t *dag, uip_ipaddr_t *prefix, int prefix_len,
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uip_ipaddr_t *next_hop)
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@ -107,7 +133,7 @@ rpl_add_route(rpl_dag_t *dag, uip_ipaddr_t *prefix, int prefix_len,
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uip_ipaddr_copy(&rep->nexthop, next_hop);
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}
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rep->state.dag = dag;
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rep->state.lifetime = RPL_LIFETIME(dag, dag->default_lifetime);
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rep->state.lifetime = RPL_LIFETIME(dag->instance, dag->instance->default_lifetime);
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rep->state.learned_from = RPL_ROUTE_FROM_INTERNAL;
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PRINTF("RPL: Added a route to ");
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@ -123,8 +149,9 @@ static void
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rpl_link_neighbor_callback(const rimeaddr_t *addr, int known, int etx)
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{
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uip_ipaddr_t ipaddr;
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rpl_dag_t *dag;
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rpl_parent_t *parent;
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rpl_instance_t *instance;
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rpl_instance_t *end;
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uip_ip6addr(&ipaddr, 0xfe80, 0, 0, 0, 0, 0, 0, 0);
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uip_ds6_set_addr_iid(&ipaddr, (uip_lladdr_t *)addr);
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@ -132,66 +159,55 @@ rpl_link_neighbor_callback(const rimeaddr_t *addr, int known, int etx)
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PRINT6ADDR(&ipaddr);
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PRINTF(" is %sknown. ETX = %u\n", known ? "" : "no longer ", NEIGHBOR_INFO_FIX2ETX(etx));
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dag = rpl_get_dag(RPL_DEFAULT_INSTANCE);
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if(dag == NULL) {
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return;
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}
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for( instance = &instance_table[0], end = instance + RPL_MAX_INSTANCES; instance < end; ++instance) {
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if ( instance->used == 1 ) {
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parent = rpl_find_parent_any_dag(instance, &ipaddr);
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if(!(parent == NULL)) {
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/* Trigger DAG rank recalculation. */
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parent->updated = 1;
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parent->link_metric = etx;
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parent = rpl_find_parent(dag, &ipaddr);
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if(parent == NULL) {
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if(!known) {
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PRINTF("RPL: Deleting routes installed by DAOs received from ");
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PRINT6ADDR(&ipaddr);
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PRINTF("\n");
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uip_ds6_route_rm_by_nexthop(&ipaddr);
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if(instance->of->parent_state_callback != NULL) {
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instance->of->parent_state_callback(parent, known, etx);
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}
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if(!known) {
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PRINTF("RPL: Removing parent ");
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PRINT6ADDR(&parent->addr);
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PRINTF(" in instance %u because of bad connectivity (ETX %d)\n", instance->instance_id, etx);
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parent->rank = INFINITE_RANK;
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}
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}
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}
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return;
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}
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/* Trigger DAG rank recalculation. */
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parent->updated = 1;
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parent->link_metric = etx;
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if(dag->of->parent_state_callback != NULL) {
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dag->of->parent_state_callback(parent, known, etx);
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}
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if(!known) {
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PRINTF("RPL: Removing parent ");
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PRINT6ADDR(&parent->addr);
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PRINTF(" because of bad connectivity (ETX %d)\n", etx);
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parent->rank = INFINITE_RANK;
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if (!known) {
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PRINTF("RPL: Deleting routes installed by DAOs received from ");
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PRINT6ADDR(&ipaddr);
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PRINTF("\n");
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uip_ds6_route_rm_by_nexthop(&ipaddr);
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}
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}
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/************************************************************************/
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void
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rpl_ipv6_neighbor_callback(uip_ds6_nbr_t *nbr)
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{
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rpl_dag_t *dag;
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rpl_parent_t *p;
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/* This only handles one DODAG - if multiple we need to check all */
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dag = rpl_get_dag(RPL_ANY_INSTANCE);
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if(dag == NULL) {
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return;
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}
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/* if this is our default route then clean the dag->def_route state */
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if(dag->def_route != NULL &&
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uip_ipaddr_cmp(&dag->def_route->ipaddr, &nbr->ipaddr)) {
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dag->def_route = NULL;
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}
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rpl_instance_t *instance;
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rpl_instance_t *end;
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if(!nbr->isused) {
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PRINTF("RPL: Removing neighbor ");
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PRINT6ADDR(&nbr->ipaddr);
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PRINTF("\n");
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p = rpl_find_parent(dag, &nbr->ipaddr);
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if(p != NULL) {
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p->rank = INFINITE_RANK;
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/* Trigger DAG rank recalculation. */
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p->updated = 1;
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for( instance = &instance_table[0], end = instance + RPL_MAX_INSTANCES; instance < end; ++instance) {
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if ( instance->used == 1 ) {
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p = rpl_find_parent_any_dag(instance, &nbr->ipaddr);
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if(p != NULL) {
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p->rank = INFINITE_RANK;
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/* Trigger DAG rank recalculation. */
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p->updated = 1;
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}
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}
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}
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}
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}
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@ -201,6 +217,7 @@ rpl_init(void)
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{
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uip_ipaddr_t rplmaddr;
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PRINTF("RPL started\n");
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default_instance=NULL;
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rpl_reset_periodic_timer();
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neighbor_info_subscribe(rpl_link_neighbor_callback);
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@ -214,3 +231,299 @@ rpl_init(void)
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#endif
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}
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/************************************************************************/
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int
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rpl_verify_header(int uip_ext_opt_offset)
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{
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rpl_instance_t *instance;
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if (UIP_EXT_HDR_OPT_RPL_BUF->opt_len != RPL_HDR_OPT_LEN) {
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PRINTF("RPL: Bad header option (wrong length) !\n");
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return 1;
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}
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if (UIP_EXT_HDR_OPT_RPL_BUF->flags&RPL_HDR_OPT_FWD_ERR) {
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PRINTF("RPL: Forward error !\n");
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/* We should try to repair it, not implemented for the moment */
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return 2;
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}
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instance = rpl_get_instance(UIP_EXT_HDR_OPT_RPL_BUF->instance);
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if (instance == NULL) {
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PRINTF("RPL : Unknown instance : %u\n",UIP_EXT_HDR_OPT_RPL_BUF->instance);
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return 1;
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}
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if (!instance->current_dag->joined) {
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PRINTF("RPL : No dag in the instance\n");
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return 1;
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}
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if (UIP_EXT_HDR_OPT_RPL_BUF->flags&RPL_HDR_OPT_DOWN) {
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PRINTF("RPL: Packet going down :\n");
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if (UIP_EXT_HDR_OPT_RPL_BUF->senderrank>instance->current_dag->rank) {
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PRINTF("RPL: Loop detected : Sender rank > our rank\n");
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if (UIP_EXT_HDR_OPT_RPL_BUF->flags&RPL_HDR_OPT_RANK_ERR) {
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PRINTF("RPL: Loop detected !\n");
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/* We should try to repair it, not implemented for the moment */
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return 3;
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}
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PRINTF("RPL: Single error tolerated\n");
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UIP_EXT_HDR_OPT_RPL_BUF->flags|=RPL_HDR_OPT_RANK_ERR;
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return 0;
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}
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} else {
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PRINTF("RPL: Packet going up :");
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if (UIP_EXT_HDR_OPT_RPL_BUF->senderrank<instance->current_dag->rank) {
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PRINTF("RPL: Rank error : Sender rank < our rank\n");
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if (UIP_EXT_HDR_OPT_RPL_BUF->flags&RPL_HDR_OPT_RANK_ERR) {
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PRINTF("RPL: Loop detected !\n");
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/* We should try to repair it, not implemented for the moment */
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return 3;
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}
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PRINTF("RPL: Single error tolerated\n");
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UIP_EXT_HDR_OPT_RPL_BUF->flags|=RPL_HDR_OPT_RANK_ERR;
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return 0;
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}
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}
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PRINTF("RPL: rank Ok\n");
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return 0;
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}
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/************************************************************************/
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void
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rpl_update_header_empty(void)
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{
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rpl_instance_t *instance;
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int uip_ext_opt_offset;
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int last_uip_ext_len;
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u8_t temp_len;
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last_uip_ext_len=uip_ext_len;
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uip_ext_len=0;
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uip_ext_opt_offset = 2;
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PRINTF("RPL: Verifying the presence of the RPL header option\n");
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switch(UIP_IP_BUF->proto){
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case UIP_PROTO_HBHO:
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if (UIP_HBHO_BUF->len != RPL_OP_BY_OP_LEN - 8) {
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PRINTF("RPL: Non RPL Hop-by-hop options support not implemented\n");
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uip_ext_len=last_uip_ext_len;
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return;
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}
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instance = rpl_get_instance(UIP_EXT_HDR_OPT_RPL_BUF->instance);
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if(instance == NULL || (!instance->used) || (!instance->current_dag->joined) ) {
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PRINTF("Unable to add RPL hop-by-hop extension header : incorrect instance\n");
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return;
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}
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break;
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default:
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PRINTF("RPL: No Hop-by-Hop Option found, creating it\n");
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if(uip_len + RPL_OP_BY_OP_LEN >UIP_LINK_MTU) {
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PRINTF("RPL: Packet too long : impossible to add rpl Hop-by-Hop option\n");
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uip_ext_len=last_uip_ext_len;
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return;
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}
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memmove(UIP_HBHO_NEXT_BUF,UIP_EXT_BUF,uip_len-UIP_IPH_LEN);
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memset(UIP_HBHO_BUF,0,RPL_OP_BY_OP_LEN);
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UIP_HBHO_BUF->next=UIP_IP_BUF->proto;
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UIP_IP_BUF->proto=UIP_PROTO_HBHO;
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UIP_HBHO_BUF->len=RPL_OP_BY_OP_LEN - 8;
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UIP_EXT_HDR_OPT_RPL_BUF->opt_type=UIP_EXT_HDR_OPT_RPL;
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UIP_EXT_HDR_OPT_RPL_BUF->opt_len=RPL_HDR_OPT_LEN;
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UIP_EXT_HDR_OPT_RPL_BUF->flags=0;
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UIP_EXT_HDR_OPT_RPL_BUF->instance=0;
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UIP_EXT_HDR_OPT_RPL_BUF->senderrank=0;
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uip_len+=RPL_OP_BY_OP_LEN;
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temp_len=UIP_IP_BUF->len[1];
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UIP_IP_BUF->len[1]+=(UIP_HBHO_BUF->len + 8);
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if (UIP_IP_BUF->len[1]<temp_len) {
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UIP_IP_BUF->len[0]+=1;
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}
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uip_ext_len=last_uip_ext_len+RPL_OP_BY_OP_LEN;
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return;
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}
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switch (UIP_EXT_HDR_OPT_BUF->type) {
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case UIP_EXT_HDR_OPT_RPL:
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PRINTF("RPL: Updating RPL option\n");
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UIP_EXT_HDR_OPT_RPL_BUF->senderrank=instance->current_dag->rank;
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uip_ext_len=last_uip_ext_len;
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return;
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default:
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PRINTF("RPL: Multi Hop-by-hop options not implemented\n");
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uip_ext_len=last_uip_ext_len;
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return;
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}
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}
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/************************************************************************/
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int
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rpl_update_header_final(uip_ipaddr_t *addr)
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{
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int uip_ext_opt_offset;
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int last_uip_ext_len;
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last_uip_ext_len=uip_ext_len;
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uip_ext_len=0;
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uip_ext_opt_offset = 2;
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rpl_parent_t *parent;
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if (UIP_IP_BUF->proto == UIP_PROTO_HBHO){
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if (UIP_HBHO_BUF->len != RPL_OP_BY_OP_LEN - 8) {
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PRINTF("RPL: Non RPL Hop-by-hop options support not implemented\n");
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uip_ext_len=last_uip_ext_len;
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return 0;
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}
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if (UIP_EXT_HDR_OPT_BUF->type == UIP_EXT_HDR_OPT_RPL) {
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if (UIP_EXT_HDR_OPT_RPL_BUF->senderrank==0) {
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PRINTF("RPL: Updating RPL option\n");
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if(default_instance == NULL || (!default_instance->used) || (!default_instance->current_dag->joined) ) {
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PRINTF("Unable to add RPL hop-by-hop extension header : incorrect default instance\n");
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return 1;
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}
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parent=rpl_find_parent(default_instance->current_dag,addr);
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if (parent == NULL || (parent != parent->dag->preferred_parent)) {
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UIP_EXT_HDR_OPT_RPL_BUF->flags=RPL_HDR_OPT_DOWN;
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}
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UIP_EXT_HDR_OPT_RPL_BUF->instance=default_instance->instance_id;
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UIP_EXT_HDR_OPT_RPL_BUF->senderrank=default_instance->current_dag->rank;
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uip_ext_len=last_uip_ext_len;
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}
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}
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}
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return 0;
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}
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/************************************************************************/
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int
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rpl_add_header(rpl_instance_t *instance,int down)
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{
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int uip_ext_opt_offset;
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int last_uip_ext_len;
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u8_t temp_len;
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last_uip_ext_len = uip_ext_len;
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uip_ext_len = 0;
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uip_ext_opt_offset = 2;
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if(instance == NULL || (!instance->used) || (!instance->current_dag->joined) ) {
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PRINTF("Unable to add RPL hop-by-hop extension header : incorrect instance\n");
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return 0;
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}
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PRINTF("RPL: Verifying the presence of the RPL header option\n");
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switch(UIP_IP_BUF->proto){
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case UIP_PROTO_HBHO:
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if (UIP_HBHO_BUF->len != RPL_OP_BY_OP_LEN - 8) {
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PRINTF("RPL: Non RPL Hop-by-hop options support not implemented\n");
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uip_ext_len=last_uip_ext_len;
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return 0;
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}
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break;
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default:
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PRINTF("RPL: No Hop-by-Hop Option found, creating it\n");
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if(uip_len + RPL_OP_BY_OP_LEN >UIP_LINK_MTU) {
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PRINTF("RPL: Packet too long : impossible to add rpl Hop-by-Hop option\n");
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uip_ext_len=last_uip_ext_len;
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return 0;
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}
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memmove(UIP_HBHO_NEXT_BUF,UIP_EXT_BUF,uip_len-UIP_IPH_LEN);
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memset(UIP_HBHO_BUF,0,RPL_OP_BY_OP_LEN);
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UIP_HBHO_BUF->next=UIP_IP_BUF->proto;
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UIP_IP_BUF->proto=UIP_PROTO_HBHO;
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UIP_HBHO_BUF->len=RPL_OP_BY_OP_LEN - 8;
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UIP_EXT_HDR_OPT_RPL_BUF->opt_type=UIP_EXT_HDR_OPT_RPL;
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UIP_EXT_HDR_OPT_RPL_BUF->opt_len=RPL_HDR_OPT_LEN;
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UIP_EXT_HDR_OPT_RPL_BUF->flags=RPL_HDR_OPT_DOWN&(down<<RPL_HDR_OPT_DOWN_SHIFT);
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UIP_EXT_HDR_OPT_RPL_BUF->instance=instance->instance_id;
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UIP_EXT_HDR_OPT_RPL_BUF->senderrank=instance->current_dag->rank;
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uip_len+=RPL_OP_BY_OP_LEN;
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temp_len=UIP_IP_BUF->len[1];
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UIP_IP_BUF->len[1]+=(UIP_HBHO_BUF->len + 8);
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if (UIP_IP_BUF->len[1]<temp_len) {
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UIP_IP_BUF->len[0]+=1;
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}
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uip_ext_len=last_uip_ext_len+RPL_OP_BY_OP_LEN;
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return 1;
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}
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switch (UIP_EXT_HDR_OPT_BUF->type) {
|
||||
case UIP_EXT_HDR_OPT_RPL:
|
||||
PRINTF("RPL: Updating RPL option\n");
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->opt_type=UIP_EXT_HDR_OPT_RPL;
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->opt_len=RPL_HDR_OPT_LEN;
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->flags=RPL_HDR_OPT_DOWN&(down<<RPL_HDR_OPT_DOWN_SHIFT);
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->instance=instance->instance_id;
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->senderrank=instance->current_dag->rank;
|
||||
uip_ext_len=last_uip_ext_len;
|
||||
return 1;
|
||||
default:
|
||||
PRINTF("RPL: Multi Hop-by-hop options not implemented\n");
|
||||
uip_ext_len=last_uip_ext_len;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
/************************************************************************/
|
||||
int
|
||||
rpl_add_header_root(void)
|
||||
{
|
||||
return rpl_add_header(default_instance,1);
|
||||
}
|
||||
/************************************************************************/
|
||||
void
|
||||
rpl_remove_header()
|
||||
{
|
||||
int last_uip_ext_len;
|
||||
u8_t temp_len;
|
||||
|
||||
last_uip_ext_len=uip_ext_len;
|
||||
uip_ext_len=0;
|
||||
|
||||
PRINTF("RPL: Verifying the presence of the RPL header option\n");
|
||||
switch(UIP_IP_BUF->proto){
|
||||
case UIP_PROTO_HBHO:
|
||||
PRINTF("RPL: Removing the present RPL header option\n");
|
||||
UIP_IP_BUF->proto=UIP_HBHO_BUF->next;
|
||||
temp_len=UIP_IP_BUF->len[1];
|
||||
uip_len-=UIP_HBHO_BUF->len + 8;
|
||||
UIP_IP_BUF->len[1]-=(UIP_HBHO_BUF->len + 8);
|
||||
if (UIP_IP_BUF->len[1]>temp_len) {
|
||||
UIP_IP_BUF->len[0]-=1;
|
||||
}
|
||||
memmove(UIP_EXT_BUF, UIP_HBHO_NEXT_BUF, uip_len - UIP_IPH_LEN);
|
||||
break;
|
||||
default:
|
||||
PRINTF("RPL: No Hop-by-Hop Option found\n");
|
||||
}
|
||||
}
|
||||
/************************************************************************/
|
||||
u8_t
|
||||
rpl_invert_header()
|
||||
{
|
||||
u8_t uip_ext_opt_offset;
|
||||
u8_t last_uip_ext_len;
|
||||
|
||||
last_uip_ext_len=uip_ext_len;
|
||||
uip_ext_len=0;
|
||||
uip_ext_opt_offset = 2;
|
||||
|
||||
PRINTF("RPL: Verifying the presence of the RPL header option\n");
|
||||
switch(UIP_IP_BUF->proto){
|
||||
case UIP_PROTO_HBHO:
|
||||
break;
|
||||
default:
|
||||
PRINTF("RPL: No Hop-by-Hop Option found\n");
|
||||
uip_ext_len=last_uip_ext_len;
|
||||
return 0;
|
||||
}
|
||||
switch (UIP_EXT_HDR_OPT_BUF->type) {
|
||||
case UIP_EXT_HDR_OPT_RPL:
|
||||
PRINTF("RPL: Updating RPL option (Inverting Up<->Down)\n");
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->flags&=RPL_HDR_OPT_DOWN;
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->flags^=RPL_HDR_OPT_DOWN;
|
||||
UIP_EXT_HDR_OPT_RPL_BUF->senderrank=rpl_get_instance(UIP_EXT_HDR_OPT_RPL_BUF->instance)->current_dag->rank;
|
||||
uip_ext_len=last_uip_ext_len;
|
||||
return RPL_OP_BY_OP_LEN;
|
||||
default:
|
||||
PRINTF("RPL: Multi Hop-by-hop options not implemented\n");
|
||||
uip_ext_len=last_uip_ext_len;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
/************************************************************************/
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue