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Merge pull request #1493 from simonduq/pr/add-missing-ext-hdr

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Insert RPL ext header before sending ICMP, UDP and TCP messages
This commit is contained in:
Simon Duquennoy 2016-07-25 14:56:25 +02:00 committed by GitHub
parent ff5a4751c8 7a1576815e
commit 21387b954f
9 changed files with 133 additions and 192 deletions
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15
core/net/ip/tcpip.c
View file

@ -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 */
@ -651,12 +660,6 @@ 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

12
core/net/ipv6/uip-icmp6.c
View file

@ -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();
}
/*---------------------------------------------------------------------------*/

14
core/net/ipv6/uip6.c
View file

@ -890,7 +890,7 @@ 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;
}
@ -1228,14 +1228,6 @@ 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 +1574,6 @@ 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 */

201
core/net/rpl/rpl-ext-header.c
View file

@ -78,26 +78,22 @@ rpl_verify_hbh_header(int uip_ext_opt_offset)
uip_ds6_route_t *route;
rpl_parent_t *sender = NULL;
if(UIP_HBHO_BUF->len != ((RPL_HOP_BY_HOP_LEN - 8) / 8)) {
PRINTF("RPL: Hop-by-hop extension header has wrong size\n");
return 1;
}
if(UIP_HBHO_BUF->len != ((RPL_HOP_BY_HOP_LEN - 8) / 8)
|| 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) {
if(UIP_EXT_HDR_OPT_RPL_BUF->opt_type != UIP_EXT_HDR_OPT_RPL) {
PRINTF("RPL: Non RPL Hop-by-hop option\n");
return 1;
}
if(UIP_EXT_HDR_OPT_RPL_BUF->opt_len != RPL_HDR_OPT_LEN) {
PRINTF("RPL: Bad header option! (wrong length)\n");
return 1;
PRINTF("RPL: Hop-by-hop extension header has wrong size or type (%u %u %u)\n",
UIP_HBHO_BUF->len,
UIP_EXT_HDR_OPT_RPL_BUF->opt_type,
UIP_EXT_HDR_OPT_RPL_BUF->opt_len);
return 0; /* Drop */
}
instance = rpl_get_instance(UIP_EXT_HDR_OPT_RPL_BUF->instance);
if(instance == NULL) {
PRINTF("RPL: Unknown instance: %u\n",
UIP_EXT_HDR_OPT_RPL_BUF->instance);
return 1;
return 0;
}
if(UIP_EXT_HDR_OPT_RPL_BUF->flags & RPL_HDR_OPT_FWD_ERR) {
@ -116,14 +112,13 @@ rpl_verify_hbh_header(int uip_ext_opt_offset)
/* Trigger DAO retransmission */
rpl_reset_dio_timer(instance);
/* drop the packet as it is not routable */
return 1;
return 0;
}
if(!instance->current_dag->joined) {
PRINTF("RPL: No DAG in the instance\n");
return 1;
return 0;
}
down = 0;
if(UIP_EXT_HDR_OPT_RPL_BUF->flags & RPL_HDR_OPT_DOWN) {
down = 1;
@ -167,16 +162,16 @@ rpl_verify_hbh_header(int uip_ext_opt_offset)
PRINTF("RPL: Rank error signalled in RPL option!\n");
/* Packet must be dropped and dio trickle timer reset, see RFC6550 - 11.2.2.2 */
rpl_reset_dio_timer(instance);
return 1;
return 0;
}
PRINTF("RPL: Single error tolerated\n");
RPL_STAT(rpl_stats.loop_warnings++);
UIP_EXT_HDR_OPT_RPL_BUF->flags |= RPL_HDR_OPT_RANK_ERR;
return 0;
return 1;
}
PRINTF("RPL: Rank OK\n");
return 0;
return 1;
}
/*---------------------------------------------------------------------------*/
#if RPL_WITH_NON_STORING
@ -383,7 +378,7 @@ insert_srh_header(void)
if(node == root_node) {
PRINTF("RPL: SRH no need to insert SRH\n");
return 0;
return 1;
}
while(node != NULL && node != root_node) {
@ -482,52 +477,39 @@ update_hbh_header(void)
uip_ext_len = 0;
uip_ext_opt_offset = 2;
PRINTF("RPL: Verifying the presence of the RPL header option\n");
if(UIP_IP_BUF->proto == UIP_PROTO_HBHO && UIP_EXT_HDR_OPT_RPL_BUF->opt_type == UIP_EXT_HDR_OPT_RPL) {
if(UIP_HBHO_BUF->len != ((RPL_HOP_BY_HOP_LEN - 8) / 8)
|| UIP_EXT_HDR_OPT_RPL_BUF->opt_len != RPL_HDR_OPT_LEN) {
switch(UIP_IP_BUF->proto) {
case UIP_PROTO_HBHO:
if(UIP_HBHO_BUF->len != ((RPL_HOP_BY_HOP_LEN - 8) / 8)) {
PRINTF("RPL: Hop-by-hop extension header has wrong size\n");
uip_ext_len = last_uip_ext_len;
return 1;
}
if(UIP_EXT_HDR_OPT_RPL_BUF->opt_type != UIP_EXT_HDR_OPT_RPL) {
PRINTF("RPL: Non RPL Hop-by-hop option support not implemented\n");
uip_ext_len = last_uip_ext_len;
return 1;
}
if(UIP_EXT_HDR_OPT_RPL_BUF->opt_len != RPL_HDR_OPT_LEN) {
PRINTF("RPL: RPL Hop-by-hop option has wrong length\n");
uip_ext_len = last_uip_ext_len;
return 1;
PRINTF("RPL: Hop-by-hop extension header has wrong size (%u %u)\n",
UIP_EXT_HDR_OPT_RPL_BUF->opt_len,
uip_ext_len);
return 0; /* Drop */
}
instance = rpl_get_instance(UIP_EXT_HDR_OPT_RPL_BUF->instance);
if(instance == NULL || !instance->used || !instance->current_dag->joined) {
PRINTF("RPL: Unable to add hop-by-hop extension header: incorrect instance\n");
return 1;
PRINTF("RPL: Unable to add/update hop-by-hop extension header: incorrect instance\n");
uip_ext_len = last_uip_ext_len;
return 0; /* Drop */
}
break;
default:
PRINTF("RPL: No hop-by-hop option found\n");
return 1;
}
switch(UIP_EXT_HDR_OPT_BUF->type) {
case UIP_EXT_HDR_OPT_RPL:
PRINTF("RPL: Updating RPL option\n");
/* Update sender rank and instance, will update flags next */
UIP_EXT_HDR_OPT_RPL_BUF->senderrank = UIP_HTONS(instance->current_dag->rank);
UIP_EXT_HDR_OPT_RPL_BUF->instance = instance->instance_id;
if(RPL_IS_STORING(instance)) { /* In non-storing mode, downwards traffic does not have the HBH option */
/* Check the direction of the down flag, as per Section 11.2.2.3,
which states that if a packet is going down it should in
general not go back up again. If this happens, a
RPL_HDR_OPT_FWD_ERR should be flagged. */
which states that if a packet is going down it should in
general not go back up again. If this happens, a
RPL_HDR_OPT_FWD_ERR should be flagged. */
if((UIP_EXT_HDR_OPT_RPL_BUF->flags & RPL_HDR_OPT_DOWN)) {
if(uip_ds6_route_lookup(&UIP_IP_BUF->destipaddr) == NULL) {
UIP_EXT_HDR_OPT_RPL_BUF->flags |= RPL_HDR_OPT_FWD_ERR;
PRINTF("RPL forwarding error\n");
/* We should send back the packet to the originating parent,
but it is not feasible yet, so we send a No-Path DAO instead */
but it is not feasible yet, so we send a No-Path DAO instead */
PRINTF("RPL generate No-Path DAO\n");
parent = rpl_get_parent((uip_lladdr_t *)packetbuf_addr(PACKETBUF_ADDR_SENDER));
if(parent != NULL) {
@ -538,11 +520,11 @@ update_hbh_header(void)
}
} else {
/* Set the down extension flag correctly as described in Section
11.2 of RFC6550. If the packet progresses along a DAO route,
the down flag should be set. */
11.2 of RFC6550. If the packet progresses along a DAO route,
the down flag should be set. */
if(uip_ds6_route_lookup(&UIP_IP_BUF->destipaddr) == NULL) {
/* No route was found, so this packet will go towards the RPL
root. If so, we should not set the down flag. */
root. If so, we should not set the down flag. */
UIP_EXT_HDR_OPT_RPL_BUF->flags &= ~RPL_HDR_OPT_DOWN;
PRINTF("RPL option going up\n");
} else {
@ -552,18 +534,14 @@ update_hbh_header(void)
}
}
}
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 1;
}
uip_ext_len = last_uip_ext_len;
return 1;
}
/*---------------------------------------------------------------------------*/
static int
insert_hbh_header(void)
insert_hbh_header(const rpl_instance_t *instance)
{
int uip_ext_opt_offset;
int last_uip_ext_len;
@ -594,8 +572,8 @@ insert_hbh_header(void)
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 = 0;
UIP_EXT_HDR_OPT_RPL_BUF->instance = 0;
UIP_EXT_HDR_OPT_RPL_BUF->senderrank = 0;
UIP_EXT_HDR_OPT_RPL_BUF->senderrank = UIP_HTONS(instance->current_dag->rank);
UIP_EXT_HDR_OPT_RPL_BUF->instance = instance->instance_id;
uip_len += RPL_HOP_BY_HOP_LEN;
temp_len = UIP_IP_BUF->len[1];
UIP_IP_BUF->len[1] += RPL_HOP_BY_HOP_LEN;
@ -604,44 +582,9 @@ insert_hbh_header(void)
}
uip_ext_len = last_uip_ext_len + RPL_HOP_BY_HOP_LEN;
return 1;
}
/*---------------------------------------------------------------------------*/
int
rpl_finalize_header(uip_ipaddr_t *addr)
{
rpl_parent_t *parent;
int uip_ext_opt_offset;
int last_uip_ext_len;
last_uip_ext_len = uip_ext_len;
uip_ext_len = 0;
uip_ext_opt_offset = 2;
if(UIP_IP_BUF->proto == UIP_PROTO_HBHO) {
if(UIP_HBHO_BUF->len != ((RPL_HOP_BY_HOP_LEN - 8) / 8)) {
PRINTF("RPL: Non RPL Hop-by-hop options support not implemented\n");
uip_ext_len = last_uip_ext_len;
return 1;
}
if(UIP_EXT_HDR_OPT_BUF->type == UIP_EXT_HDR_OPT_RPL) {
if(UIP_EXT_HDR_OPT_RPL_BUF->senderrank == 0) {
PRINTF("RPL: Updating RPL option\n");
if(default_instance == NULL || !default_instance->used || !default_instance->current_dag->joined) {
PRINTF("RPL: Unable to add hop-by-hop extension header: incorrect default instance\n");
return 0;
}
parent = rpl_find_parent(default_instance->current_dag, addr);
if(parent == NULL || parent != parent->dag->preferred_parent) {
UIP_EXT_HDR_OPT_RPL_BUF->flags = RPL_HDR_OPT_DOWN;
}
UIP_EXT_HDR_OPT_RPL_BUF->instance = default_instance->instance_id;
UIP_EXT_HDR_OPT_RPL_BUF->senderrank = UIP_HTONS(default_instance->current_dag->rank);
}
}
}
return 1;
/* Update header before returning */
return update_hbh_header();
}
/*---------------------------------------------------------------------------*/
void
@ -654,8 +597,6 @@ rpl_remove_header(void)
uip_ext_len = 0;
uip_next_hdr = &UIP_IP_BUF->proto;
PRINTF("RPL: Verifying the presence of RPL extension headers\n");
/* Look for hop-by-hop and routing headers */
while(uip_next_hdr != NULL) {
switch(*uip_next_hdr) {
@ -691,51 +632,33 @@ rpl_remove_header(void)
}
}
/*---------------------------------------------------------------------------*/
void
rpl_insert_header(void)
{
if(default_instance == NULL || default_instance->current_dag == NULL
|| uip_is_addr_linklocal(&UIP_IP_BUF->destipaddr) || uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
return;
}
if(RPL_IS_STORING(default_instance)) {
insert_hbh_header();
}
if(RPL_IS_NON_STORING(default_instance)) {
if(default_instance->current_dag != NULL) {
if(default_instance->current_dag->rank == ROOT_RANK(default_instance)) {
insert_srh_header();
} else {
insert_hbh_header();
}
}
}
}
/*---------------------------------------------------------------------------*/
int
rpl_update_header(void)
{
if(default_instance == NULL) {
return 0;
if(default_instance == NULL || default_instance->current_dag == NULL
|| uip_is_addr_linklocal(&UIP_IP_BUF->destipaddr) || uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
return 1;
}
if(default_instance->current_dag != NULL) {
if(default_instance->current_dag->rank == ROOT_RANK(default_instance)) {
/* At the root, remove headers if any, and insert SRH or HBH
* (SRH is inserted only if the destination is in the DODAG) */
rpl_remove_header();
if(RPL_IS_NON_STORING(default_instance)) {
return insert_srh_header();
} else {
return insert_hbh_header();
}
if(default_instance->current_dag->rank == ROOT_RANK(default_instance)) {
/* At the root, remove headers if any, and insert SRH or HBH
* (SRH is inserted only if the destination is in the DODAG) */
rpl_remove_header();
if(RPL_IS_NON_STORING(default_instance)) {
return insert_srh_header();
} else {
return update_hbh_header();
return insert_hbh_header(default_instance);
}
} else {
return 0;
if(uip_ds6_is_my_addr(&UIP_IP_BUF->srcipaddr)
&& UIP_IP_BUF->ttl == uip_ds6_if.cur_hop_limit) {
/* Insert HBH option at source. Checking the address is not sufficient because
* in non-storing mode, a packet may go up and then down the same path again */
return insert_hbh_header(default_instance);
} else {
/* Update HBH option at forwarders */
return update_hbh_header();
}
}
}

62
examples/ipv6/rpl-tsch/node.c
View file

@ -41,6 +41,7 @@
#include "net/rpl/rpl.h"
#include "net/ipv6/uip-ds6-route.h"
#include "net/mac/tsch/tsch.h"
#include "net/rpl/rpl-private.h"
#if WITH_ORCHESTRA
#include "orchestra.h"
#endif /* WITH_ORCHESTRA */
@ -68,46 +69,73 @@ print_network_status(void)
int i;
uint8_t state;
uip_ds6_defrt_t *default_route;
#if RPL_WITH_STORING
uip_ds6_route_t *route;
#endif /* RPL_WITH_STORING */
#if RPL_WITH_NON_STORING
rpl_ns_node_t *link;
#endif /* RPL_WITH_NON_STORING */
PRINTA("--- Network status ---\n");
PRINTF("--- Network status ---\n");
/* Our IPv6 addresses */
PRINTA("- Server IPv6 addresses:\n");
PRINTF("- Server IPv6 addresses:\n");
for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
state = uip_ds6_if.addr_list[i].state;
if(uip_ds6_if.addr_list[i].isused &&
(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
PRINTA("-- ");
uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
PRINTA("\n");
PRINTF("-- ");
PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
PRINTF("\n");
}
}
/* Our default route */
PRINTA("- Default route:\n");
PRINTF("- Default route:\n");
default_route = uip_ds6_defrt_lookup(uip_ds6_defrt_choose());
if(default_route != NULL) {
PRINTA("-- ");
uip_debug_ipaddr_print(&default_route->ipaddr);
PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)default_route->lifetime.interval);
PRINTF("-- ");
PRINT6ADDR(&default_route->ipaddr);
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)default_route->lifetime.interval);
} else {
PRINTA("-- None\n");
PRINTF("-- None\n");
}
#if RPL_WITH_STORING
/* Our routing entries */
PRINTA("- Routing entries (%u in total):\n", uip_ds6_route_num_routes());
PRINTF("- Routing entries (%u in total):\n", uip_ds6_route_num_routes());
route = uip_ds6_route_head();
while(route != NULL) {
PRINTA("-- ");
uip_debug_ipaddr_print(&route->ipaddr);
PRINTA(" via ");
uip_debug_ipaddr_print(uip_ds6_route_nexthop(route));
PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)route->state.lifetime);
PRINTF("-- ");
PRINT6ADDR(&route->ipaddr);
PRINTF(" via ");
PRINT6ADDR(uip_ds6_route_nexthop(route));
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)route->state.lifetime);
route = uip_ds6_route_next(route);
}
#endif
PRINTA("----------------------\n");
#if RPL_WITH_NON_STORING
/* Our routing links */
PRINTF("- Routing links (%u in total):\n", rpl_ns_num_nodes());
link = rpl_ns_node_head();
while(link != NULL) {
if(link->parent != NULL) {
uip_ipaddr_t child_ipaddr;
uip_ipaddr_t parent_ipaddr;
rpl_ns_get_node_global_addr(&child_ipaddr, link);
rpl_ns_get_node_global_addr(&parent_ipaddr, link->parent);
PRINTF("-- ");
PRINT6ADDR(&child_ipaddr);
PRINTF(" to ");
PRINT6ADDR(&parent_ipaddr);
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)link->lifetime);
}
link = rpl_ns_node_next(link);
}
#endif
PRINTF("----------------------\n");
}
/*---------------------------------------------------------------------------*/
static void

15
examples/ipv6/rpl-tsch/project-conf.h
View file

@ -45,6 +45,17 @@
#define WITH_SECURITY 0
#endif /* WITH_SECURITY */
/*******************************************************/
/********* Enable RPL non-storing mode *****************/
/*******************************************************/
#undef UIP_CONF_MAX_ROUTES
#define UIP_CONF_MAX_ROUTES 0 /* No need for routes */
#undef RPL_CONF_MOP
#define RPL_CONF_MOP RPL_MOP_NON_STORING /* Mode of operation*/
#undef ORCHESTRA_CONF_RULES
#define ORCHESTRA_CONF_RULES { &eb_per_time_source, &unicast_per_neighbor_rpl_ns, &default_common } /* Orchestra in non-storing */
/*******************************************************/
/********************* Enable TSCH *********************/
/*******************************************************/
@ -140,8 +151,8 @@
#define UIP_CONF_TCP 0
#undef QUEUEBUF_CONF_NUM
#define QUEUEBUF_CONF_NUM 3
#undef UIP_CONF_MAX_ROUTES
#define UIP_CONF_MAX_ROUTES 8
#undef RPL_NS_CONF_LINK_NUM
#define RPL_NS_CONF_LINK_NUM 8
#undef NBR_TABLE_CONF_MAX_NEIGHBORS
#define NBR_TABLE_CONF_MAX_NEIGHBORS 8
#undef UIP_CONF_ND6_SEND_NA

2
regression-tests/11-ipv6/19-z1-rpl-tsch.csc
View file

@ -272,7 +272,7 @@ make node.z1 TARGET=z1 MAKE_WITH_ORCHESTRA=0 MAKE_WITH_SECURITY=0</commands>
/* Wait until a node (can only be the DAGRoot) has&#xD;
* 8 routing entries (i.e. can reach every node) */&#xD;
log.log("Waiting for routing tables to fill\n");&#xD;
WAIT_UNTIL(msg.endsWith("Routing entries (8 in total):"));&#xD;
WAIT_UNTIL(msg.endsWith("Routing links (8 in total):"));&#xD;
log.log("Root routing table ready\n");&#xD;
&#xD;
log.testOK(); /* Report test success and quit */</script>

2
regression-tests/11-ipv6/20-z1-rpl-tsch-orchestra.csc
View file

@ -277,7 +277,7 @@ log.log("Orchestra started\n");&#xD;
/* Wait until a node (can only be the DAGRoot) has&#xD;
* 8 routing entries (i.e. can reach every node) */&#xD;
log.log("Waiting for routing tables to fill\n");&#xD;
WAIT_UNTIL(msg.endsWith("Routing entries (8 in total):"));&#xD;
WAIT_UNTIL(msg.endsWith("Routing links (8 in total):"));&#xD;
log.log("Root routing table ready\n");&#xD;
&#xD;
log.testOK(); /* Report test success and quit */</script>

2
regression-tests/11-ipv6/21-z1-rpl-tsch-security.csc
View file

@ -274,7 +274,7 @@ log.log("Waiting for association with security\n");&#xD;
/* Wait until a node (can only be the DAGRoot) has&#xD;
* 8 routing entries (i.e. can reach every node) */&#xD;
log.log("Waiting for routing tables to fill\n");&#xD;
WAIT_UNTIL(msg.endsWith("Routing entries (8 in total):"));&#xD;
WAIT_UNTIL(msg.endsWith("Routing links (8 in total):"));&#xD;
log.log("Root routing table ready\n");&#xD;
&#xD;
log.testOK(); /* Report test success and quit */</script>