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[routing-manager] new mechanism for deprecating old on-link prefixes (#8315)
This commit updates how `OnLinkPrefixManager` retains and deprecates old local on-link prefixes. Instead of remembering a single old prefix, a list of old prefixes are remembered and the number of entries in the list can be configured at build-time using an OT config. If the BR is stopped, the deprecating prefixes are still remembered and the the expire timer keeps running. They are removed from the list when they expire. If the BR is started again the deprecating old prefixes are again included as PIO in the emitted RA and also published in Network Data. The changes in this commit also ensure we can correctly handle the situation where the extended PAN ID is changed to a previous value before the corresponding on-link prefix expires, i.e. when a currently deprecating prefix becomes the current local on-link prefix again. This commit also updates the unit test case validating the behavior of newly added mechanism under different situations.
This commit is contained in:
Abtin Keshavarzian
@@ -46,8 +46,8 @@
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using namespace ot;
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// Logs a message and adds current time (sNow) as "<hours>:<min>:<secs>.<msec>"
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#define Log(...) \
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printf("%02u:%02u:%02u.%03u " OT_FIRST_ARG(__VA_ARGS__) "\n", (sNow / 36000000), (sNow / 60000) % 60, \
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#define Log(...) \
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printf("%02u:%02u:%02u.%03u " OT_FIRST_ARG(__VA_ARGS__) "\n", (sNow / 3600000), (sNow / 60000) % 60, \
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(sNow / 1000) % 60, sNow % 1000 OT_REST_ARGS(__VA_ARGS__))
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static constexpr uint32_t kInfraIfIndex = 1;
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@@ -56,7 +56,8 @@ static const char kInfraIfAddress[] = "fe80::1";
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static constexpr uint32_t kValidLitime = 2000;
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static constexpr uint32_t kPreferredLifetime = 1800;
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static constexpr uint16_t kMaxRaSize = 800;
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static constexpr uint16_t kMaxRaSize = 800;
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static constexpr uint16_t kMaxDeprecatingPrefixes = 16;
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static ot::Instance *sInstance;
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@@ -77,15 +78,31 @@ enum ExpectedPio
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kPioDeprecatingLocalOnLink, // Expect to see local on-link prefix deprecated (zero preferred lifetime).
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};
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struct DeprecatingPrefix
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{
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DeprecatingPrefix(void) = default;
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DeprecatingPrefix(const Ip6::Prefix &aPrefix, uint32_t aLifetime)
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: mPrefix(aPrefix)
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, mLifetime(aLifetime)
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{
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}
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bool Matches(const Ip6::Prefix &aPrefix) const { return mPrefix == aPrefix; }
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Ip6::Prefix mPrefix; // Old on-link prefix being deprecated.
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uint32_t mLifetime; // Valid lifetime of prefix from PIO.
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};
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static Ip6::Address sInfraIfAddress;
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bool sRsEmitted; // Indicates if an RS message was emitted by BR.
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bool sRaValidated; // Indicates if an RA was emitted by BR and successfully validated.
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ExpectedPio sExpectedPio; // Expected PIO in the emitted RA by BR (MUST be seen in RA to set `sRaValidated`).
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bool sExpectOldOnLinkPio; // Expect to see old local prefix PIO
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uint32_t sOnLinkLifetime; // Valid lifetime for local on-link prefix from the last processed RA.
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uint32_t sOldOnLinkLifetime; // Valid lifetime of the old local prefix PIO (when `sExpectOldOnLinkPio`).
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Ip6::Prefix sOldOnLinkPrefix; // The old on-link PIO prefix in last processed RA (when `sExpectOldOnLinkPio`)
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bool sRsEmitted; // Indicates if an RS message was emitted by BR.
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bool sRaValidated; // Indicates if an RA was emitted by BR and successfully validated.
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ExpectedPio sExpectedPio; // Expected PIO in the emitted RA by BR (MUST be seen in RA to set `sRaValidated`).
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uint32_t sOnLinkLifetime; // Valid lifetime for local on-link prefix from the last processed RA.
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// Array containing deprecating prefixes from PIOs in the last processed RA.
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Array<DeprecatingPrefix, kMaxDeprecatingPrefixes> sDeprecatingPrefixes;
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static constexpr uint16_t kMaxRioPrefixes = 10;
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@@ -139,6 +156,22 @@ void ValidateRouterAdvert(const Icmp6Packet &aPacket);
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const char *PreferenceToString(int8_t aPreference);
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void SendRouterAdvert(const Ip6::Address &aAddress, const Icmp6Packet &aPacket);
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#if OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED
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void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat, ...)
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{
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OT_UNUSED_VARIABLE(aLogLevel);
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OT_UNUSED_VARIABLE(aLogRegion);
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va_list args;
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printf(" ");
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va_start(args, aFormat);
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vprintf(aFormat, args);
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va_end(args);
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printf("\n");
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}
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#endif
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//----------------------------------------------------------------------------------------------------------------------
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// `otPlatRadio
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@@ -260,11 +293,12 @@ void AdvanceTime(uint32_t aDuration)
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void ValidateRouterAdvert(const Icmp6Packet &aPacket)
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{
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Ip6::Nd::RouterAdvertMessage raMsg(aPacket);
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bool sawExpectedPio = false;
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bool sawExpecteOldPio = false;
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bool sawExpectedPio = false;
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VerifyOrQuit(raMsg.IsValid());
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sDeprecatingPrefixes.Clear();
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for (const Ip6::Nd::Option &option : raMsg)
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{
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switch (option.GetType())
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@@ -288,28 +322,26 @@ void ValidateRouterAdvert(const Icmp6Packet &aPacket)
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break;
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case kPioAdvertisingLocalOnLink:
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VerifyOrQuit(pio.GetPreferredLifetime() > 0, "On link prefix is deprecated unexpectedly");
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sOnLinkLifetime = pio.GetValidLifetime();
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sawExpectedPio = true;
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if (pio.GetPreferredLifetime() > 0)
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{
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sOnLinkLifetime = pio.GetValidLifetime();
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sawExpectedPio = true;
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}
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break;
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case kPioDeprecatingLocalOnLink:
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VerifyOrQuit(pio.GetPreferredLifetime() == 0, "On link prefix is not deprecated");
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sOnLinkLifetime = pio.GetValidLifetime();
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sawExpectedPio = true;
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if (pio.GetPreferredLifetime() == 0)
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{
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sOnLinkLifetime = pio.GetValidLifetime();
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sawExpectedPio = true;
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}
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break;
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}
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}
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else if (sExpectOldOnLinkPio)
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else
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{
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VerifyOrQuit(pio.GetPreferredLifetime() == 0, "Old on link prefix is not deprecated");
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sOldOnLinkPrefix = prefix;
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sOldOnLinkLifetime = pio.GetValidLifetime();
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if (sExpectOldOnLinkPio)
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{
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sawExpecteOldPio = true;
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}
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SuccessOrQuit(sDeprecatingPrefixes.PushBack(DeprecatingPrefix(prefix, pio.GetValidLifetime())));
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}
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break;
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}
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@@ -354,11 +386,6 @@ void ValidateRouterAdvert(const Icmp6Packet &aPacket)
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break;
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}
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if (sExpectOldOnLinkPio)
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{
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VerifyOrExit(sawExpecteOldPio);
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}
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sRaValidated = true;
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}
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@@ -477,6 +504,15 @@ void VerifyOmrPrefixInNetData(const Ip6::Prefix &aOmrPrefix, bool aDefaultRoute
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VerifyOrQuit(otNetDataGetNextOnMeshPrefix(sInstance, &iterator, &prefixConfig) == kErrorNotFound);
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}
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void VerifyNoOmrPrefixInNetData(void)
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{
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otNetworkDataIterator iterator = OT_NETWORK_DATA_ITERATOR_INIT;
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NetworkData::OnMeshPrefixConfig prefixConfig;
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Log("VerifyNoOmrPrefixInNetData()");
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VerifyOrQuit(otNetDataGetNextOnMeshPrefix(sInstance, &iterator, &prefixConfig) != kErrorNone);
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}
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using NetworkData::RoutePreference;
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struct ExternalRoute
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@@ -526,6 +562,15 @@ template <uint16_t kLength> void VerifyExternalRoutesInNetData(const ExternalRou
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VerifyOrQuit(counter == kLength);
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}
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void VerifyNoExternalRouteInNetData(void)
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{
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otNetworkDataIterator iterator = OT_NETWORK_DATA_ITERATOR_INIT;
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NetworkData::ExternalRouteConfig routeConfig;
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Log("VerifyNoExternalRouteInNetData()");
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VerifyOrQuit(otNetDataGetNextRoute(sInstance, &iterator, &routeConfig) != kErrorNone);
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}
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struct Pio
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{
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Pio(const Ip6::Prefix &aPrefix, uint32_t aValidLifetime, uint32_t aPreferredLifetime)
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@@ -1495,7 +1540,9 @@ void TestExtPanIdChange(void)
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static const otExtendedPanId kExtPanId1 = {{0x01, 0x02, 0x03, 0x04, 0x05, 0x6, 0x7, 0x08}};
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static const otExtendedPanId kExtPanId2 = {{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 0x99, 0x88}};
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static const otExtendedPanId kExtPanId3 = {{0x12, 0x34, 056, 0x78, 0x9a, 0xab, 0xcd, 0xef}};
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static const otExtendedPanId kExtPanId3 = {{0x12, 0x34, 0x56, 0x78, 0x9a, 0xab, 0xcd, 0xef}};
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static const otExtendedPanId kExtPanId4 = {{0x44, 0x00, 0x44, 0x00, 0x44, 0x00, 0x44, 0x00}};
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static const otExtendedPanId kExtPanId5 = {{0x77, 0x88, 0x00, 0x00, 0x55, 0x55, 0x55, 0x55}};
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Ip6::Prefix localOnLink;
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Ip6::Prefix oldLocalOnLink;
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@@ -1503,6 +1550,7 @@ void TestExtPanIdChange(void)
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Ip6::Prefix onLinkPrefix = PrefixFromString("2000:abba:baba::", 64);
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Ip6::Address routerAddressA = AddressFromString("fd00::aaaa");
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uint32_t oldPrefixLifetime;
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Ip6::Prefix oldPrefixes[4];
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otOperationalDataset dataset;
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Log("--------------------------------------------------------------------------------------------");
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@@ -1546,9 +1594,8 @@ void TestExtPanIdChange(void)
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oldLocalOnLink = localOnLink;
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oldPrefixLifetime = sOnLinkLifetime;
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sRaValidated = false;
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sExpectOldOnLinkPio = true;
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sExpectedPio = kPioAdvertisingLocalOnLink;
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sRaValidated = false;
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sExpectedPio = kPioAdvertisingLocalOnLink;
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SuccessOrQuit(otDatasetGetActive(sInstance, &dataset));
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@@ -1569,7 +1616,9 @@ void TestExtPanIdChange(void)
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AdvanceTime(30000);
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VerifyOrQuit(sRaValidated);
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VerifyOrQuit(sOldOnLinkPrefix == oldLocalOnLink);
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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VerifyOrQuit(sDeprecatingPrefixes[0].mPrefix == oldLocalOnLink);
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oldPrefixLifetime = sDeprecatingPrefixes[0].mLifetime;
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Validate the Network Data to contain both the current and old
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@@ -1580,46 +1629,47 @@ void TestExtPanIdChange(void)
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ExternalRoute(oldLocalOnLink, NetworkData::kRoutePreferenceMedium)});
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Change the extended PAN ID again.
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// Stop BR and validate that a final RA is emitted deprecating
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// both current local on-link prefix and old prefix.
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Log("Changing ext PAN ID again");
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sRaValidated = false;
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sExpectedPio = kPioDeprecatingLocalOnLink;
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oldLocalOnLink = localOnLink;
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oldPrefixLifetime = sOnLinkLifetime;
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sRaValidated = false;
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sExpectOldOnLinkPio = true;
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sExpectedPio = kPioAdvertisingLocalOnLink;
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dataset.mExtendedPanId = kExtPanId3;
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SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
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AdvanceTime(500);
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SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
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Log("Local on-link prefix changed to %s from %s", localOnLink.ToString().AsCString(),
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oldLocalOnLink.ToString().AsCString());
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Validate the received RA message and that it contains the
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// old on-link prefix being deprecated.
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AdvanceTime(30000);
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SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(false));
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AdvanceTime(100);
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VerifyOrQuit(sRaValidated);
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VerifyOrQuit(sOldOnLinkPrefix == oldLocalOnLink);
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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VerifyOrQuit(sDeprecatingPrefixes[0].mPrefix == oldLocalOnLink);
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oldPrefixLifetime = sDeprecatingPrefixes[0].mLifetime;
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sRaValidated = false;
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AdvanceTime(350000);
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VerifyOrQuit(!sRaValidated);
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VerifyNoOmrPrefixInNetData();
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VerifyNoExternalRouteInNetData();
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Validate the Network Data to contain both the current and old
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// local on-link prefixes and the previous old prefix is now removed.
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// Start BR again and validate old prefix will continue to
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// be deprecated.
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VerifyOmrPrefixInNetData(localOmr);
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VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
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ExternalRoute(oldLocalOnLink, NetworkData::kRoutePreferenceMedium)});
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sRaValidated = false;
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sExpectedPio = kPioAdvertisingLocalOnLink;
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SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(true));
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AdvanceTime(300000);
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VerifyOrQuit(sRaValidated);
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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VerifyOrQuit(sDeprecatingPrefixes[0].mPrefix == oldLocalOnLink);
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VerifyOrQuit(oldPrefixLifetime > sDeprecatingPrefixes[0].mLifetime);
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oldPrefixLifetime = sDeprecatingPrefixes[0].mLifetime;
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Wait for old local on-link prefix to expire.
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while (oldPrefixLifetime > kMaxRaTxInterval)
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while (oldPrefixLifetime > 2 * kMaxRaTxInterval)
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{
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// Ensure Network Data entries remain as before. Mainly we still
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// see the deprecating local on-link prefix.
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@@ -1635,21 +1685,22 @@ void TestExtPanIdChange(void)
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AdvanceTime(kMaxRaTxInterval * 1000);
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VerifyOrQuit(sRaValidated);
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Log("Old on-link prefix is deprecating, remaining lifetime:%d", sOldOnLinkLifetime);
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VerifyOrQuit(sOldOnLinkLifetime < oldPrefixLifetime);
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oldPrefixLifetime = sOldOnLinkLifetime;
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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Log("Old on-link prefix is deprecating, remaining lifetime:%d", sDeprecatingPrefixes[0].mLifetime);
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VerifyOrQuit(sDeprecatingPrefixes[0].mLifetime < oldPrefixLifetime);
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oldPrefixLifetime = sDeprecatingPrefixes[0].mLifetime;
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}
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// The local on-link prefix must be expired now and should no
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// longer be seen in the emitted RA message.
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sRaValidated = false;
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sExpectOldOnLinkPio = false;
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sRaValidated = false;
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AdvanceTime(kMaxRaTxInterval * 1000);
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AdvanceTime(2 * kMaxRaTxInterval * 1000);
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VerifyOrQuit(sRaValidated);
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VerifyOrQuit(sDeprecatingPrefixes.IsEmpty());
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Log("Old on-link prefix is now expired");
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@@ -1672,9 +1723,8 @@ void TestExtPanIdChange(void)
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Validate that the local on-link prefix is deprecated.
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sRaValidated = false;
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sExpectOldOnLinkPio = false;
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sExpectedPio = kPioDeprecatingLocalOnLink;
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sRaValidated = false;
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sExpectedPio = kPioDeprecatingLocalOnLink;
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AdvanceTime(30000);
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@@ -1698,13 +1748,14 @@ void TestExtPanIdChange(void)
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// Validate that the old local on-link prefix is still being included
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// as PIO in the emitted RA.
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sRaValidated = false;
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sExpectOldOnLinkPio = true;
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sExpectedPio = kNoPio;
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sRaValidated = false;
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sExpectedPio = kNoPio;
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AdvanceTime(30000);
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VerifyOrQuit(sRaValidated);
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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VerifyOrQuit(sDeprecatingPrefixes[0].mPrefix == oldLocalOnLink);
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Validate that Network Data contains the old local on-link
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@@ -1717,7 +1768,7 @@ void TestExtPanIdChange(void)
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// Wait for old local on-link prefix to expire.
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while (oldPrefixLifetime > kMaxRaTxInterval)
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while (oldPrefixLifetime > 2 * kMaxRaTxInterval)
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{
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// Send same RA from router A to keep its on-link prefix alive.
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@@ -1737,29 +1788,266 @@ void TestExtPanIdChange(void)
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AdvanceTime(kMaxRaTxInterval * 1000);
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VerifyOrQuit(sRaValidated);
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Log("Old on-link prefix is deprecating, remaining lifetime:%d", sOldOnLinkLifetime);
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VerifyOrQuit(sOldOnLinkLifetime < oldPrefixLifetime);
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oldPrefixLifetime = sOldOnLinkLifetime;
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VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
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Log("Old on-link prefix is deprecating, remaining lifetime:%d", sDeprecatingPrefixes[0].mLifetime);
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VerifyOrQuit(sDeprecatingPrefixes[0].mLifetime < oldPrefixLifetime);
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oldPrefixLifetime = sDeprecatingPrefixes[0].mLifetime;
|
||||
}
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// The old on-link prefix must be expired now and should no
|
||||
// longer be seen in the emitted RA message.
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectOldOnLinkPio = false;
|
||||
SendRouterAdvert(routerAddressA, {Pio(onLinkPrefix, kValidLitime, kPreferredLifetime)});
|
||||
sRaValidated = false;
|
||||
|
||||
AdvanceTime(kMaxRaTxInterval * 1000);
|
||||
AdvanceTime(2 * kMaxRaTxInterval * 1000);
|
||||
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.IsEmpty());
|
||||
Log("Old on-link prefix is now expired");
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Validate the Network Data to now only contains entry from router A
|
||||
// Validate the Network Data to now only contains entry from router A.
|
||||
|
||||
VerifyOmrPrefixInNetData(localOmr);
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(onLinkPrefix, NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
// Check behavior when ext PAN ID changes while the local on-link is not
|
||||
// advertised.
|
||||
|
||||
Log("Changing ext PAN ID again");
|
||||
|
||||
oldLocalOnLink = localOnLink;
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kNoPio;
|
||||
|
||||
dataset.mExtendedPanId = kExtPanId3;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
AdvanceTime(500);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
Log("Local on-link prefix changed to %s from %s", localOnLink.ToString().AsCString(),
|
||||
oldLocalOnLink.ToString().AsCString());
|
||||
|
||||
AdvanceTime(35000);
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.IsEmpty());
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Validate the Network Data to now only contains entry from router A.
|
||||
|
||||
VerifyOmrPrefixInNetData(localOmr);
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(onLinkPrefix, NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Remove the on-link prefix PIO being advertised by router A
|
||||
// and ensure local on-link prefix is advertised again.
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
SendRouterAdvert(routerAddressA, {Pio(onLinkPrefix, kValidLitime, 0)});
|
||||
|
||||
AdvanceTime(300000);
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.IsEmpty());
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Wait for longer than valid lifetime of PIO entry from router A.
|
||||
// Validate that it is unpublished from network data.
|
||||
|
||||
AdvanceTime(2000 * 1000);
|
||||
VerifyOmrPrefixInNetData(localOmr);
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
// Multiple PAN ID changes and multiple deprecating old prefixes.
|
||||
|
||||
oldPrefixes[0] = localOnLink;
|
||||
|
||||
dataset.mExtendedPanId = kExtPanId2;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
AdvanceTime(30000);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[0], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Change the prefix again. We should see two deprecating prefixes.
|
||||
|
||||
oldPrefixes[1] = localOnLink;
|
||||
|
||||
dataset.mExtendedPanId = kExtPanId1;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
AdvanceTime(30000);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 2);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[1]));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[0], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[1], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Wait for 15 minutes and then change ext PAN ID again.
|
||||
// Now we should see three deprecating prefixes.
|
||||
|
||||
AdvanceTime(15 * 60 * 1000);
|
||||
|
||||
oldPrefixes[2] = localOnLink;
|
||||
|
||||
dataset.mExtendedPanId = kExtPanId4;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
AdvanceTime(30000);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 3);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[1]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[2]));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[0], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[1], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[2], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Change ext PAN ID back to previous value of `kExtPanId1`.
|
||||
// We should still see three deprecating prefixes and the last prefix
|
||||
// at `oldPrefixes[2]` should again be treated as local on-link prefix.
|
||||
|
||||
oldPrefixes[3] = localOnLink;
|
||||
|
||||
dataset.mExtendedPanId = kExtPanId1;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
AdvanceTime(30000);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 3);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[1]));
|
||||
VerifyOrQuit(oldPrefixes[2] == localOnLink);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[3]));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[0], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[1], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[3], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Stop BR and validate the final emitted RA to contain
|
||||
// all deprecating prefixes.
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioDeprecatingLocalOnLink;
|
||||
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(false));
|
||||
AdvanceTime(100);
|
||||
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 3);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[1]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[3]));
|
||||
|
||||
VerifyNoOmrPrefixInNetData();
|
||||
VerifyNoExternalRouteInNetData();
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Wait for 15 minutes while BR stays disabled and validate
|
||||
// there are no emitted RAs. We want to check that deprecating
|
||||
// prefixes continue to expire while BR is stopped.
|
||||
|
||||
sRaValidated = false;
|
||||
AdvanceTime(15 * 60 * 1000);
|
||||
|
||||
VerifyOrQuit(!sRaValidated);
|
||||
|
||||
VerifyNoOmrPrefixInNetData();
|
||||
VerifyNoExternalRouteInNetData();
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
// Start BR again, and check that we only see the last deprecating prefix
|
||||
// at `oldPrefixes[3]` in emitted RA and the other two are expired and
|
||||
// no longer included as PIO and/or in network data.
|
||||
|
||||
sRaValidated = false;
|
||||
sExpectedPio = kPioAdvertisingLocalOnLink;
|
||||
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().SetEnabled(true));
|
||||
|
||||
AdvanceTime(30000);
|
||||
|
||||
VerifyOrQuit(sRaValidated);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 1);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[3]));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[3], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
// Validate the oldest prefix is removed when we have too many
|
||||
// back-to-back PAN ID changes.
|
||||
|
||||
// Remember the oldest deprecating prefix (associated with `kExtPanId4`).
|
||||
oldLocalOnLink = oldPrefixes[3];
|
||||
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(oldPrefixes[0]));
|
||||
dataset.mExtendedPanId = kExtPanId2;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
AdvanceTime(30000);
|
||||
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(oldPrefixes[1]));
|
||||
dataset.mExtendedPanId = kExtPanId3;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
AdvanceTime(30000);
|
||||
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(oldPrefixes[2]));
|
||||
dataset.mExtendedPanId = kExtPanId5;
|
||||
SuccessOrQuit(otDatasetSetActive(sInstance, &dataset));
|
||||
|
||||
sRaValidated = false;
|
||||
|
||||
AdvanceTime(30000);
|
||||
|
||||
VerifyOrQuit(sRaValidated);
|
||||
SuccessOrQuit(sInstance->Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(localOnLink));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.GetLength() == 3);
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[0]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[1]));
|
||||
VerifyOrQuit(sDeprecatingPrefixes.ContainsMatching(oldPrefixes[2]));
|
||||
VerifyOrQuit(!sDeprecatingPrefixes.ContainsMatching(oldLocalOnLink));
|
||||
|
||||
VerifyExternalRoutesInNetData({ExternalRoute(localOnLink, NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[0], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[1], NetworkData::kRoutePreferenceMedium),
|
||||
ExternalRoute(oldPrefixes[2], NetworkData::kRoutePreferenceMedium)});
|
||||
|
||||
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
|
||||
Log("End of TestExtPanIdChange");
|
||||
|
||||
Reference in New Issue
Block a user