stats: expose relayProtocol on prflx candidate
This makes relay candidates identifiable in scenarios
where the TURN server is behind another entity and the peer
sees a different ip address:
client -> turn -> relay address -> third party relay + address -> peer
In those cases, the relay candidate will become peer-reflexive
since the peer sends the third party relay's address in the xor-mapped
address and it is currently not easily possible to determine this is a
relay candidate anymore.
BUG=webrtc:13392
Change-Id: I6787339d0abdc735f8a43f636a676cccd8cadcda
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237561
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/main@{#35346}
diff --git a/pc/rtc_stats_collector.cc b/pc/rtc_stats_collector.cc
index 23e24dc..7f815f2 100644
--- a/pc/rtc_stats_collector.cc
+++ b/pc/rtc_stats_collector.cc
@@ -728,8 +728,11 @@
if (is_local) {
candidate_stats->network_type =
NetworkAdapterTypeToStatsType(candidate.network_type());
- if (candidate.type() == cricket::RELAY_PORT_TYPE) {
- std::string relay_protocol = candidate.relay_protocol();
+ const std::string& candidate_type = candidate.type();
+ const std::string& relay_protocol = candidate.relay_protocol();
+ if (candidate_type == cricket::RELAY_PORT_TYPE ||
+ (candidate_type == cricket::PRFLX_PORT_TYPE &&
+ !relay_protocol.empty())) {
RTC_DCHECK(relay_protocol.compare("udp") == 0 ||
relay_protocol.compare("tcp") == 0 ||
relay_protocol.compare("tls") == 0);
diff --git a/pc/rtc_stats_collector_unittest.cc b/pc/rtc_stats_collector_unittest.cc
index 8c3c42f..53387e8 100644
--- a/pc/rtc_stats_collector_unittest.cc
+++ b/pc/rtc_stats_collector_unittest.cc
@@ -1315,6 +1315,24 @@
expected_a_local_relay.priority = 1;
EXPECT_FALSE(*expected_a_local_relay.is_remote);
+ std::unique_ptr<cricket::Candidate> a_local_relay_prflx = CreateFakeCandidate(
+ "11.12.13.20", 22, "a_local_relay_prflx's protocol",
+ rtc::ADAPTER_TYPE_UNKNOWN, cricket::PRFLX_PORT_TYPE, 1);
+ a_local_relay_prflx->set_relay_protocol("udp");
+
+ RTCLocalIceCandidateStats expected_a_local_relay_prflx(
+ "RTCIceCandidate_" + a_local_relay_prflx->id(), 0);
+ expected_a_local_relay_prflx.transport_id = "RTCTransport_a_0";
+ expected_a_local_relay_prflx.network_type = "unknown";
+ expected_a_local_relay_prflx.ip = "11.12.13.20";
+ expected_a_local_relay_prflx.address = "11.12.13.20";
+ expected_a_local_relay_prflx.port = 22;
+ expected_a_local_relay_prflx.protocol = "a_local_relay_prflx's protocol";
+ expected_a_local_relay_prflx.relay_protocol = "udp";
+ expected_a_local_relay_prflx.candidate_type = "prflx";
+ expected_a_local_relay_prflx.priority = 1;
+ EXPECT_FALSE(*expected_a_local_relay.is_remote);
+
// Candidates in the second transport stats.
std::unique_ptr<cricket::Candidate> b_local =
CreateFakeCandidate("42.42.42.42", 42, "b_local's protocol",
@@ -1365,6 +1383,12 @@
.local_candidate = *a_local_relay.get();
a_transport_channel_stats.ice_transport_stats.connection_infos[2]
.remote_candidate = *a_remote_relay.get();
+ a_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
+ cricket::ConnectionInfo());
+ a_transport_channel_stats.ice_transport_stats.connection_infos[3]
+ .local_candidate = *a_local_relay_prflx.get();
+ a_transport_channel_stats.ice_transport_stats.connection_infos[3]
+ .remote_candidate = *a_remote_relay.get();
pc_->AddVoiceChannel("audio", "a");
pc_->SetTransportStats("a", a_transport_channel_stats);
@@ -1399,6 +1423,10 @@
ASSERT_TRUE(report->Get(expected_a_local_relay.id()));
EXPECT_EQ(expected_a_local_relay, report->Get(expected_a_local_relay.id())
->cast_to<RTCLocalIceCandidateStats>());
+ ASSERT_TRUE(report->Get(expected_a_local_relay_prflx.id()));
+ EXPECT_EQ(expected_a_local_relay_prflx,
+ report->Get(expected_a_local_relay_prflx.id())
+ ->cast_to<RTCLocalIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_b_local.id()));
EXPECT_EQ(
expected_b_local,
