Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 583 insertions, 0 deletions

diff --git a/netwerk/dns/nsHostRecord.cpp b/netwerk/dns/nsHostRecord.cpp
new file mode 100644
index 0000000000..65b1d01150
--- /dev/null
+++ b/netwerk/dns/nsHostRecord.cpp
@@ -0,0 +1,583 @@
+/* vim:set ts=4 sw=2 sts=2 et cin: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsHostRecord.h"
+#include "TRRQuery.h"
+// Put DNSLogging.h at the end to avoid LOG being overwritten by other headers.
+#include "DNSLogging.h"
+#include "mozilla/StaticPrefs_network.h"
+#include "mozilla/Telemetry.h"
+#include "TRRService.h"
+
+//----------------------------------------------------------------------------
+// this macro filters out any flags that are not used when constructing the
+// host key.  the significant flags are those that would affect the resulting
+// host record (i.e., the flags that are passed down to PR_GetAddrInfoByName).
+#define RES_KEY_FLAGS(_f)                                              \
+  ((_f) &                                                              \
+   (nsHostResolver::RES_CANON_NAME | nsHostResolver::RES_DISABLE_TRR | \
+    nsIDNSService::RESOLVE_TRR_MODE_MASK | nsHostResolver::RES_IP_HINT))
+
+#define IS_ADDR_TYPE(_type) ((_type) == nsIDNSService::RESOLVE_TYPE_DEFAULT)
+#define IS_OTHER_TYPE(_type) ((_type) != nsIDNSService::RESOLVE_TYPE_DEFAULT)
+
+//----------------------------------------------------------------------------
+
+using namespace mozilla;
+using namespace mozilla::net;
+
+nsHostKey::nsHostKey(const nsACString& aHost, const nsACString& aTrrServer,
+                     uint16_t aType, nsIDNSService::DNSFlags aFlags,
+                     uint16_t aAf, bool aPb, const nsACString& aOriginsuffix)
+    : host(aHost),
+      mTrrServer(aTrrServer),
+      type(aType),
+      flags(aFlags),
+      af(aAf),
+      pb(aPb),
+      originSuffix(aOriginsuffix) {}
+
+bool nsHostKey::operator==(const nsHostKey& other) const {
+  return host == other.host && mTrrServer == other.mTrrServer &&
+         type == other.type &&
+         RES_KEY_FLAGS(flags) == RES_KEY_FLAGS(other.flags) && af == other.af &&
+         originSuffix == other.originSuffix;
+}
+
+PLDHashNumber nsHostKey::Hash() const {
+  return AddToHash(HashString(host.get()), HashString(mTrrServer.get()), type,
+                   RES_KEY_FLAGS(flags), af, HashString(originSuffix.get()));
+}
+
+size_t nsHostKey::SizeOfExcludingThis(
+    mozilla::MallocSizeOf mallocSizeOf) const {
+  size_t n = 0;
+  n += host.SizeOfExcludingThisIfUnshared(mallocSizeOf);
+  n += mTrrServer.SizeOfExcludingThisIfUnshared(mallocSizeOf);
+  n += originSuffix.SizeOfExcludingThisIfUnshared(mallocSizeOf);
+  return n;
+}
+
+//----------------------------------------------------------------------------
+// nsHostRecord
+//----------------------------------------------------------------------------
+
+NS_IMPL_ISUPPORTS0(nsHostRecord)
+
+nsHostRecord::nsHostRecord(const nsHostKey& key)
+    : nsHostKey(key), mTRRQuery("nsHostRecord.mTRRQuery") {}
+
+void nsHostRecord::Invalidate() { mDoomed = true; }
+
+void nsHostRecord::Cancel() {
+  RefPtr<TRRQuery> query;
+  {
+    auto lock = mTRRQuery.Lock();
+    query.swap(lock.ref());
+  }
+
+  if (query) {
+    query->Cancel(NS_ERROR_ABORT);
+  }
+}
+
+nsHostRecord::ExpirationStatus nsHostRecord::CheckExpiration(
+    const mozilla::TimeStamp& now) const {
+  if (!mGraceStart.IsNull() && now >= mGraceStart && !mValidEnd.IsNull() &&
+      now < mValidEnd) {
+    return nsHostRecord::EXP_GRACE;
+  }
+  if (!mValidEnd.IsNull() && now < mValidEnd) {
+    return nsHostRecord::EXP_VALID;
+  }
+
+  return nsHostRecord::EXP_EXPIRED;
+}
+
+void nsHostRecord::SetExpiration(const mozilla::TimeStamp& now,
+                                 unsigned int valid, unsigned int grace) {
+  mValidStart = now;
+  if ((valid + grace) < 60) {
+    grace = 60 - valid;
+    LOG(("SetExpiration: artificially bumped grace to %d\n", grace));
+  }
+  mGraceStart = now + TimeDuration::FromSeconds(valid);
+  mValidEnd = now + TimeDuration::FromSeconds(valid + grace);
+  mTtl = valid;
+}
+
+void nsHostRecord::CopyExpirationTimesAndFlagsFrom(
+    const nsHostRecord* aFromHostRecord) {
+  // This is used to copy information from a cache entry to a record. All
+  // information necessary for HasUsableRecord needs to be copied.
+  mValidStart = aFromHostRecord->mValidStart;
+  mValidEnd = aFromHostRecord->mValidEnd;
+  mGraceStart = aFromHostRecord->mGraceStart;
+  mDoomed = aFromHostRecord->mDoomed;
+  mTtl = uint32_t(aFromHostRecord->mTtl);
+}
+
+bool nsHostRecord::HasUsableResult(const mozilla::TimeStamp& now,
+                                   nsIDNSService::DNSFlags queryFlags) const {
+  if (mDoomed) {
+    return false;
+  }
+
+  return HasUsableResultInternal(now, queryFlags);
+}
+
+//----------------------------------------------------------------------------
+// AddrHostRecord
+//----------------------------------------------------------------------------
+
+static size_t SizeOfResolveHostCallbackListExcludingHead(
+    const mozilla::LinkedList<RefPtr<nsResolveHostCallback>>& aCallbacks,
+    MallocSizeOf mallocSizeOf) {
+  size_t n = aCallbacks.sizeOfExcludingThis(mallocSizeOf);
+
+  for (const nsResolveHostCallback* t = aCallbacks.getFirst(); t;
+       t = t->getNext()) {
+    n += t->SizeOfIncludingThis(mallocSizeOf);
+  }
+
+  return n;
+}
+
+NS_IMPL_ISUPPORTS_INHERITED(AddrHostRecord, nsHostRecord, AddrHostRecord)
+
+AddrHostRecord::AddrHostRecord(const nsHostKey& key) : nsHostRecord(key) {}
+
+AddrHostRecord::~AddrHostRecord() {
+  mCallbacks.clear();
+  Telemetry::Accumulate(Telemetry::DNS_BLACKLIST_COUNT, mUnusableCount);
+}
+
+bool AddrHostRecord::Blocklisted(const NetAddr* aQuery) {
+  addr_info_lock.AssertCurrentThreadOwns();
+  LOG(("Checking unusable list for host [%s], host record [%p].\n", host.get(),
+       this));
+
+  // skip the string conversion for the common case of no blocklist
+  if (!mUnusableItems.Length()) {
+    return false;
+  }
+
+  char buf[kIPv6CStrBufSize];
+  if (!aQuery->ToStringBuffer(buf, sizeof(buf))) {
+    return false;
+  }
+  nsDependentCString strQuery(buf);
+
+  for (uint32_t i = 0; i < mUnusableItems.Length(); i++) {
+    if (mUnusableItems.ElementAt(i).Equals(strQuery)) {
+      LOG(("Address [%s] is blocklisted for host [%s].\n", buf, host.get()));
+      return true;
+    }
+  }
+
+  return false;
+}
+
+void AddrHostRecord::ReportUnusable(const NetAddr* aAddress) {
+  addr_info_lock.AssertCurrentThreadOwns();
+  LOG(
+      ("Adding address to blocklist for host [%s], host record [%p]."
+       "used trr=%d\n",
+       host.get(), this, mTRRSuccess));
+
+  ++mUnusableCount;
+
+  char buf[kIPv6CStrBufSize];
+  if (aAddress->ToStringBuffer(buf, sizeof(buf))) {
+    LOG(
+        ("Successfully adding address [%s] to blocklist for host "
+         "[%s].\n",
+         buf, host.get()));
+    mUnusableItems.AppendElement(nsCString(buf));
+  }
+}
+
+void AddrHostRecord::ResetBlocklist() {
+  addr_info_lock.AssertCurrentThreadOwns();
+  LOG(("Resetting blocklist for host [%s], host record [%p].\n", host.get(),
+       this));
+  mUnusableItems.Clear();
+}
+
+size_t AddrHostRecord::SizeOfIncludingThis(MallocSizeOf mallocSizeOf) const {
+  size_t n = mallocSizeOf(this);
+
+  n += nsHostKey::SizeOfExcludingThis(mallocSizeOf);
+  n += SizeOfResolveHostCallbackListExcludingHead(mCallbacks, mallocSizeOf);
+
+  n += addr_info ? addr_info->SizeOfIncludingThis(mallocSizeOf) : 0;
+  n += mallocSizeOf(addr.get());
+
+  n += mUnusableItems.ShallowSizeOfExcludingThis(mallocSizeOf);
+  for (size_t i = 0; i < mUnusableItems.Length(); i++) {
+    n += mUnusableItems[i].SizeOfExcludingThisIfUnshared(mallocSizeOf);
+  }
+  return n;
+}
+
+bool AddrHostRecord::HasUsableResultInternal(
+    const mozilla::TimeStamp& now, nsIDNSService::DNSFlags queryFlags) const {
+  // don't use cached negative results for high priority queries.
+  if (negative && IsHighPriority(queryFlags)) {
+    return false;
+  }
+
+  if (CheckExpiration(now) == EXP_EXPIRED) {
+    return false;
+  }
+
+  if (negative) {
+    return true;
+  }
+
+  return addr_info || addr;
+}
+
+// Returns true if the entry can be removed, or false if it should be left.
+// Sets ResolveAgain true for entries being resolved right now.
+bool AddrHostRecord::RemoveOrRefresh(bool aTrrToo) {
+  // no need to flush TRRed names, they're not resolved "locally"
+  MutexAutoLock lock(addr_info_lock);
+  if (addr_info && !aTrrToo && addr_info->IsTRR()) {
+    return false;
+  }
+  if (LoadNative()) {
+    if (!onQueue()) {
+      // The request has been passed to the OS resolver. The resultant DNS
+      // record should be considered stale and not trusted; set a flag to
+      // ensure it is called again.
+      StoreResolveAgain(true);
+    }
+    // if onQueue is true, the host entry is already added to the cache
+    // but is still pending to get resolved: just leave it in hash.
+    return false;
+  }
+  // Already resolved; not in a pending state; remove from cache
+  return true;
+}
+
+void AddrHostRecord::NotifyRetryingTrr() {
+  MOZ_ASSERT(mFirstTRRSkippedReason ==
+             mozilla::net::TRRSkippedReason::TRR_UNSET);
+
+  // Save the skip reason of our first attempt for recording telemetry later.
+  mFirstTRRSkippedReason = mTRRSkippedReason;
+  mTRRSkippedReason = mozilla::net::TRRSkippedReason::TRR_UNSET;
+}
+
+void AddrHostRecord::ResolveComplete() {
+  if (LoadNativeUsed()) {
+    if (mNativeSuccess) {
+      uint32_t millis = static_cast<uint32_t>(mNativeDuration.ToMilliseconds());
+      Telemetry::Accumulate(Telemetry::DNS_NATIVE_LOOKUP_TIME, millis);
+    }
+    AccumulateCategoricalKeyed(
+        TRRService::ProviderKey(),
+        mNativeSuccess ? Telemetry::LABELS_DNS_LOOKUP_DISPOSITION3::osOK
+                       : Telemetry::LABELS_DNS_LOOKUP_DISPOSITION3::osFail);
+  }
+
+  if (mResolverType == DNSResolverType::TRR) {
+    if (mTRRSuccess) {
+      MOZ_DIAGNOSTIC_ASSERT(mTRRSkippedReason ==
+                            mozilla::net::TRRSkippedReason::TRR_OK);
+      uint32_t millis = static_cast<uint32_t>(mTrrDuration.ToMilliseconds());
+      Telemetry::Accumulate(Telemetry::DNS_TRR_LOOKUP_TIME3,
+                            TRRService::ProviderKey(), millis);
+    }
+    AccumulateCategoricalKeyed(
+        TRRService::ProviderKey(),
+        mTRRSuccess ? Telemetry::LABELS_DNS_LOOKUP_DISPOSITION3::trrOK
+                    : Telemetry::LABELS_DNS_LOOKUP_DISPOSITION3::trrFail);
+  }
+
+  if (nsHostResolver::Mode() == nsIDNSService::MODE_TRRFIRST ||
+      nsHostResolver::Mode() == nsIDNSService::MODE_TRRONLY) {
+    MOZ_ASSERT(mTRRSkippedReason != mozilla::net::TRRSkippedReason::TRR_UNSET);
+
+    Telemetry::Accumulate(Telemetry::TRR_SKIP_REASON_TRR_FIRST2,
+                          TRRService::ProviderKey(),
+                          static_cast<uint32_t>(mTRRSkippedReason));
+    if (!mTRRSuccess && LoadNativeUsed()) {
+      Telemetry::Accumulate(
+          mNativeSuccess ? Telemetry::TRR_SKIP_REASON_NATIVE_SUCCESS
+                         : Telemetry::TRR_SKIP_REASON_NATIVE_FAILED,
+          TRRService::ProviderKey(), static_cast<uint32_t>(mTRRSkippedReason));
+    }
+
+    if (IsRelevantTRRSkipReason(mTRRSkippedReason)) {
+      Telemetry::Accumulate(Telemetry::TRR_RELEVANT_SKIP_REASON_TRR_FIRST,
+                            TRRService::ProviderKey(),
+                            static_cast<uint32_t>(mTRRSkippedReason));
+
+      if (!mTRRSuccess && LoadNativeUsed()) {
+        Telemetry::Accumulate(
+            mNativeSuccess ? Telemetry::TRR_RELEVANT_SKIP_REASON_NATIVE_SUCCESS
+                           : Telemetry::TRR_RELEVANT_SKIP_REASON_NATIVE_FAILED,
+            TRRService::ProviderKey(),
+            static_cast<uint32_t>(mTRRSkippedReason));
+      }
+    }
+
+    if (StaticPrefs::network_trr_retry_on_recoverable_errors() &&
+        nsHostResolver::Mode() == nsIDNSService::MODE_TRRFIRST) {
+      nsAutoCString telemetryKey(TRRService::ProviderKey());
+
+      if (mFirstTRRSkippedReason != mozilla::net::TRRSkippedReason::TRR_UNSET) {
+        telemetryKey.AppendLiteral("|");
+        telemetryKey.AppendInt(static_cast<uint32_t>(mFirstTRRSkippedReason));
+
+        Telemetry::Accumulate(mTRRSuccess
+                                  ? Telemetry::TRR_SKIP_REASON_RETRY_SUCCESS
+                                  : Telemetry::TRR_SKIP_REASON_RETRY_FAILED,
+                              TRRService::ProviderKey(),
+                              static_cast<uint32_t>(mFirstTRRSkippedReason));
+      }
+
+      Telemetry::Accumulate(Telemetry::TRR_SKIP_REASON_STRICT_MODE,
+                            telemetryKey,
+                            static_cast<uint32_t>(mTRRSkippedReason));
+
+      if (mTRRSuccess) {
+        Telemetry::Accumulate(Telemetry::TRR_ATTEMPT_COUNT,
+                              TRRService::ProviderKey(), mTrrAttempts);
+      }
+    }
+  }
+
+  if (mEffectiveTRRMode == nsIRequest::TRR_FIRST_MODE) {
+    if (flags & nsIDNSService::RESOLVE_DISABLE_TRR) {
+      // TRR is disabled on request, which is a next-level back-off method.
+      Telemetry::Accumulate(Telemetry::DNS_TRR_DISABLED3,
+                            TRRService::ProviderKey(), mNativeSuccess);
+    } else {
+      if (mTRRSuccess) {
+        AccumulateCategoricalKeyed(TRRService::ProviderKey(),
+                                   Telemetry::LABELS_DNS_TRR_FIRST4::TRR);
+      } else if (mNativeSuccess) {
+        if (mResolverType == DNSResolverType::TRR) {
+          AccumulateCategoricalKeyed(
+              TRRService::ProviderKey(),
+              Telemetry::LABELS_DNS_TRR_FIRST4::NativeAfterTRR);
+        } else {
+          AccumulateCategoricalKeyed(TRRService::ProviderKey(),
+                                     Telemetry::LABELS_DNS_TRR_FIRST4::Native);
+        }
+      } else {
+        AccumulateCategoricalKeyed(
+            TRRService::ProviderKey(),
+            Telemetry::LABELS_DNS_TRR_FIRST4::BothFailed);
+      }
+    }
+  }
+
+  switch (mEffectiveTRRMode) {
+    case nsIRequest::TRR_DISABLED_MODE:
+      AccumulateCategorical(Telemetry::LABELS_DNS_LOOKUP_ALGORITHM::nativeOnly);
+      break;
+    case nsIRequest::TRR_FIRST_MODE:
+      AccumulateCategorical(Telemetry::LABELS_DNS_LOOKUP_ALGORITHM::trrFirst);
+      break;
+    case nsIRequest::TRR_ONLY_MODE:
+      AccumulateCategorical(Telemetry::LABELS_DNS_LOOKUP_ALGORITHM::trrOnly);
+      break;
+    case nsIRequest::TRR_DEFAULT_MODE:
+      MOZ_ASSERT_UNREACHABLE("We should not have a default value here");
+      break;
+  }
+
+  if (mResolverType == DNSResolverType::TRR && !mTRRSuccess && mNativeSuccess &&
+      !LoadGetTtl() && TRRService::Get()) {
+    TRRService::Get()->AddToBlocklist(nsCString(host), originSuffix, pb, true);
+  }
+}
+
+AddrHostRecord::DnsPriority AddrHostRecord::GetPriority(
+    nsIDNSService::DNSFlags aFlags) {
+  if (IsHighPriority(aFlags)) {
+    return AddrHostRecord::DNS_PRIORITY_HIGH;
+  }
+  if (IsMediumPriority(aFlags)) {
+    return AddrHostRecord::DNS_PRIORITY_MEDIUM;
+  }
+
+  return AddrHostRecord::DNS_PRIORITY_LOW;
+}
+
+nsresult AddrHostRecord::GetTtl(uint32_t* aResult) {
+  NS_ENSURE_ARG(aResult);
+  *aResult = mTtl;
+  return NS_OK;
+}
+
+//----------------------------------------------------------------------------
+// TypeHostRecord
+//----------------------------------------------------------------------------
+
+NS_IMPL_ISUPPORTS_INHERITED(TypeHostRecord, nsHostRecord, TypeHostRecord,
+                            nsIDNSTXTRecord, nsIDNSHTTPSSVCRecord)
+
+TypeHostRecord::TypeHostRecord(const nsHostKey& key)
+    : nsHostRecord(key), DNSHTTPSSVCRecordBase(key.host) {}
+
+TypeHostRecord::~TypeHostRecord() { mCallbacks.clear(); }
+
+bool TypeHostRecord::HasUsableResultInternal(
+    const mozilla::TimeStamp& now, nsIDNSService::DNSFlags queryFlags) const {
+  if (CheckExpiration(now) == EXP_EXPIRED) {
+    return false;
+  }
+
+  if (negative) {
+    return true;
+  }
+
+  return !mResults.is<Nothing>();
+}
+
+bool TypeHostRecord::RefreshForNegativeResponse() const { return false; }
+
+NS_IMETHODIMP TypeHostRecord::GetRecords(CopyableTArray<nsCString>& aRecords) {
+  // deep copy
+  MutexAutoLock lock(mResultsLock);
+
+  if (!mResults.is<TypeRecordTxt>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  aRecords = mResults.as<CopyableTArray<nsCString>>();
+  return NS_OK;
+}
+
+NS_IMETHODIMP TypeHostRecord::GetRecordsAsOneString(nsACString& aRecords) {
+  // deep copy
+  MutexAutoLock lock(mResultsLock);
+
+  if (!mResults.is<TypeRecordTxt>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  auto& results = mResults.as<CopyableTArray<nsCString>>();
+  for (uint32_t i = 0; i < results.Length(); i++) {
+    aRecords.Append(results[i]);
+  }
+  return NS_OK;
+}
+
+size_t TypeHostRecord::SizeOfIncludingThis(MallocSizeOf mallocSizeOf) const {
+  size_t n = mallocSizeOf(this);
+
+  n += nsHostKey::SizeOfExcludingThis(mallocSizeOf);
+  n += SizeOfResolveHostCallbackListExcludingHead(mCallbacks, mallocSizeOf);
+
+  return n;
+}
+
+uint32_t TypeHostRecord::GetType() {
+  MutexAutoLock lock(mResultsLock);
+
+  return mResults.match(
+      [](TypeRecordEmpty&) {
+        MOZ_ASSERT(false, "This should never be the case");
+        return nsIDNSService::RESOLVE_TYPE_DEFAULT;
+      },
+      [](TypeRecordTxt&) { return nsIDNSService::RESOLVE_TYPE_TXT; },
+      [](TypeRecordHTTPSSVC&) { return nsIDNSService::RESOLVE_TYPE_HTTPSSVC; });
+}
+
+TypeRecordResultType TypeHostRecord::GetResults() {
+  MutexAutoLock lock(mResultsLock);
+  return mResults;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetRecords(nsTArray<RefPtr<nsISVCBRecord>>& aRecords) {
+  MutexAutoLock lock(mResultsLock);
+  if (!mResults.is<TypeRecordHTTPSSVC>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  auto& results = mResults.as<TypeRecordHTTPSSVC>();
+
+  for (const SVCB& r : results) {
+    RefPtr<nsISVCBRecord> rec = new mozilla::net::SVCBRecord(r);
+    aRecords.AppendElement(rec);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetServiceModeRecord(bool aNoHttp2, bool aNoHttp3,
+                                     nsISVCBRecord** aRecord) {
+  MutexAutoLock lock(mResultsLock);
+  if (!mResults.is<TypeRecordHTTPSSVC>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  auto& results = mResults.as<TypeRecordHTTPSSVC>();
+  nsCOMPtr<nsISVCBRecord> result = GetServiceModeRecordInternal(
+      aNoHttp2, aNoHttp3, results, mAllRecordsExcluded);
+  if (!result) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  result.forget(aRecord);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetAllRecordsWithEchConfig(
+    bool aNoHttp2, bool aNoHttp3, bool* aAllRecordsHaveEchConfig,
+    bool* aAllRecordsInH3ExcludedList,
+    nsTArray<RefPtr<nsISVCBRecord>>& aResult) {
+  MutexAutoLock lock(mResultsLock);
+  if (!mResults.is<TypeRecordHTTPSSVC>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  auto& records = mResults.as<TypeRecordHTTPSSVC>();
+  GetAllRecordsWithEchConfigInternal(aNoHttp2, aNoHttp3, records,
+                                     aAllRecordsHaveEchConfig,
+                                     aAllRecordsInH3ExcludedList, aResult);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetHasIPAddresses(bool* aResult) {
+  NS_ENSURE_ARG(aResult);
+  MutexAutoLock lock(mResultsLock);
+
+  if (!mResults.is<TypeRecordHTTPSSVC>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  auto& results = mResults.as<TypeRecordHTTPSSVC>();
+  *aResult = HasIPAddressesInternal(results);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetAllRecordsExcluded(bool* aResult) {
+  NS_ENSURE_ARG(aResult);
+  MutexAutoLock lock(mResultsLock);
+
+  if (!mResults.is<TypeRecordHTTPSSVC>()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  *aResult = mAllRecordsExcluded;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TypeHostRecord::GetTtl(uint32_t* aResult) {
+  NS_ENSURE_ARG(aResult);
+  *aResult = mTtl;
+  return NS_OK;
+}