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[mle] reset MLE adv timer when cost changes to/from infinite (#4129)

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This commit is contained in:
Simon Lin
2019-09-04 22:02:26 -07:00
committed by Jonathan Hui
parent e7ea31b16f
commit eb5b42a86e
1 changed files with 18 additions and 3 deletions
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src/core/thread/mle_router.cpp
+18 -3
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@@ -1427,7 +1427,8 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
uint8_t cost;
uint8_t linkQuality;
bool update;
bool changed = false;
bool resetAdvInterval = false;
bool changed = false;
neighbor = mRouterTable.GetRouter(aRouterId);
VerifyOrExit(neighbor != NULL);
@@ -1461,7 +1462,16 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
if (neighbor->GetLinkQualityOut() != linkQuality)
{
uint8_t oldLinkCost = mRouterTable.GetLinkCost(*neighbor);
neighbor->SetLinkQualityOut(linkQuality);
nextHop = mRouterTable.GetRouter(neighbor->GetNextHop());
// reset MLE advertisement timer if neighbor route cost changed to or from infinite
if (nextHop == NULL &&
(oldLinkCost >= kMaxRouteCost) != (mRouterTable.GetLinkCost(*neighbor) >= kMaxRouteCost))
{
resetAdvInterval = true;
}
update = true;
}
}
@@ -1494,7 +1504,7 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
{
if (nextHop == NULL && mRouterTable.GetLinkCost(*router) >= kMaxRouteCost)
{
ResetAdvertiseInterval();
resetAdvInterval = true;
}
router->SetNextHop(aRouterId);
@@ -1505,7 +1515,7 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
{
if (mRouterTable.GetLinkCost(*router) >= kMaxRouteCost)
{
ResetAdvertiseInterval();
resetAdvInterval = true;
}
router->SetNextHop(kInvalidRouterId);
@@ -1538,6 +1548,11 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
} while (update);
if (resetAdvInterval)
{
ResetAdvertiseInterval();
}
#if (OPENTHREAD_CONFIG_LOG_MLE && (OPENTHREAD_CONFIG_LOG_LEVEL >= OT_LOG_LEVEL_INFO))
VerifyOrExit(changed);