espressif/openthread
1
0
Fork 0
mirror of https://github.com/espressif/openthread.git synced 2026-08-25 19:59:51 +00:00
Code Issues Packages Projects Releases Wiki Activity

[routing-manager] add OnLinkPrefix::IsFavoredOver() (#10452)

Browse Source 
This commit adds the `OnLinkPrefix::IsFavoredOver()` method to
determine if an on-link prefix is eligible to be considered as a
favored prefix, and if so, is favored over another prefix. A
numerically smaller prefix is considered favored.

Additionally, a new test case is added to `test_routing_manager` to
validate the selection of favored on-link prefixes, including the
the requirement of a minimum preferred lifetime of 1800 seconds
for a prefix to be considered eligible.
This commit is contained in:
Abtin Keshavarzian
2024-07-01 08:12:42 -07:00
committed by GitHub
parent 356253efd6
commit 7b9b396dd5
3 changed files with 154 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/unit/test_routing_manager.cpp
+129
View File
@@ -1168,6 +1168,16 @@ void VerifyDiscoveredRouters(const InfraRouter *aRouters, uint16_t aNumRouters)
void VerifyDiscoveredRoutersIsEmpty(void) { VerifyDiscoveredRouters(nullptr, 0); }
void VerifyFavoredOnLinkPrefix(const Ip6::Prefix &aPrefix)
{
Ip6::Prefix favoredPrefix;
Log("VerifyFavoredOnLinkPrefix(%s)", aPrefix.ToString().AsCString());
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetFavoredOnLinkPrefix(favoredPrefix));
VerifyOrQuit(favoredPrefix == aPrefix);
}
void InitTest(bool aEnablBorderRouting = false, bool aAfterReset = false)
{
uint32_t delay = 10000;
@@ -1846,6 +1856,124 @@ void TestAdvNonUlaRoute(void)
FinalizeTest();
}
void TestFavoredOnLinkPrefix(void)
{
Ip6::Prefix localOnLink;
Ip6::Prefix localOmr;
Ip6::Prefix onLinkPrefixA = PrefixFromString("2000:abba:baba:aaaa::", 64);
Ip6::Prefix onLinkPrefixB = PrefixFromString("2000:abba:baba:bbbb::", 64);
Ip6::Address routerAddressA = AddressFromString("fd00::aaaa");
Ip6::Address routerAddressB = AddressFromString("fd00::bbbb");
uint16_t heapAllocations;
Log("--------------------------------------------------------------------------------------------");
Log("TestFavoredOnLinkPrefix");
InitTest();
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Start Routing Manager. Check emitted RS and RA messages.
sRsEmitted = false;
sRaValidated = false;
sExpectedPio = kPioAdvertisingLocalOnLink;
sExpectedRios.Clear();
heapAllocations = sHeapAllocatedPtrs.GetLength();
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(true));
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOmrPrefix(localOmr));
Log("Local on-link prefix is %s", localOnLink.ToString().AsCString());
Log("Local OMR prefix is %s", localOmr.ToString().AsCString());
sExpectedRios.Add(localOmr);
AdvanceTime(30000);
VerifyOrQuit(sRsEmitted);
VerifyOrQuit(sRaValidated);
VerifyOrQuit(sExpectedRios.SawAll());
Log("Received RA was validated");
VerifyFavoredOnLinkPrefix(localOnLink);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Advertise on-link prefix B from router B
SendRouterAdvert(routerAddressB, {Pio(onLinkPrefixB, kValidLitime, kPreferredLifetime)});
AdvanceTime(10 * 1000);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Check the discovered prefix table and ensure on-link prefix B is
// now the favored on-link prefix
VerifyPrefixTable({OnLinkPrefix(onLinkPrefixB, kValidLitime, kPreferredLifetime, routerAddressB)});
VerifyFavoredOnLinkPrefix(onLinkPrefixB);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Advertise on-link prefix A from router A with a short
// preferred lifetime (less than 1800 which is the threshold for it
// to be considered a valid favored on-link prefix).
SendRouterAdvert(routerAddressA, {Pio(onLinkPrefixA, kValidLitime, 1799)});
AdvanceTime(10 * 1000);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Check the discovered prefix table and ensure on-link prefix B is
// still the favored on-link prefix.
VerifyPrefixTable({OnLinkPrefix(onLinkPrefixB, kValidLitime, kPreferredLifetime, routerAddressB),
OnLinkPrefix(onLinkPrefixA, kValidLitime, 1799, routerAddressA)});
VerifyFavoredOnLinkPrefix(onLinkPrefixB);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Advertise on-link prefix A from router A with a long
// preferred lifetime now.
SendRouterAdvert(routerAddressA, {Pio(onLinkPrefixA, kValidLitime, kPreferredLifetime)});
AdvanceTime(10 * 1000);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Check the discovered prefix table and ensure that now on-link
// prefix A (which is numerically smaller) is considered as
// favored on-link prefix.
VerifyPrefixTable({OnLinkPrefix(onLinkPrefixB, kValidLitime, kPreferredLifetime, routerAddressB),
OnLinkPrefix(onLinkPrefixA, kValidLitime, kPreferredLifetime, routerAddressA)});
VerifyFavoredOnLinkPrefix(onLinkPrefixA);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Deprecate on-link prefix A from router A
SendRouterAdvert(routerAddressA, {Pio(onLinkPrefixA, kValidLitime, 0)});
AdvanceTime(10 * 1000);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Check the discovered prefix table and ensure that now on-link
// prefix B is again the favored on-link prefix.
VerifyPrefixTable({OnLinkPrefix(onLinkPrefixB, kValidLitime, kPreferredLifetime, routerAddressB),
OnLinkPrefix(onLinkPrefixA, kValidLitime, 0, routerAddressA)});
VerifyFavoredOnLinkPrefix(onLinkPrefixB);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(false));
VerifyOrQuit(heapAllocations == sHeapAllocatedPtrs.GetLength());
Log("End of TestFavoredOnLinkPrefix");
FinalizeTest();
}
void TestLocalOnLinkPrefixDeprecation(void)
{
static constexpr uint32_t kMaxRaTxInterval = 196; // In seconds
@@ -4187,6 +4315,7 @@ int main(void)
ot::TestOmrSelection();
ot::TestDefaultRoute();
ot::TestAdvNonUlaRoute();
ot::TestFavoredOnLinkPrefix();
ot::TestLocalOnLinkPrefixDeprecation();
#if OPENTHREAD_CONFIG_BACKBONE_ROUTER_ENABLE
ot::TestDomainPrefixAsOmr();