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authorJordan Bayles <jophba@chromium.org>2020-12-15 14:04:00 -0800
committerCommit Bot <commit-bot@chromium.org>2020-12-15 23:37:14 +0000
commitf4d58e1468e4bb79ab5c9374cc4f800859643287 (patch)
treef6d81a93a8d2cc0c93aa11db338e6d19ab15df16 /cast
parent4dbefed1b3555883913cac604ac3ee42807ba204 (diff)
downloadopenscreen-f4d58e1468e4bb79ab5c9374cc4f800859643287.tar.gz
Fix Android senders by accepting 0 sequence number.
This patch updates the libcast receiver to accept 0 as a valid sequence number. TBR=miu@chromium.org Bug: b/175720188 Change-Id: I17ff6f8390b76d22ed39d756ffc2143ac7a039e8 Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/2594152 Reviewed-by: Jordan Bayles <jophba@chromium.org> Reviewed-by: Yuri Wiitala <miu@chromium.org> Commit-Queue: Jordan Bayles <jophba@chromium.org>
Diffstat (limited to 'cast')
-rw-r--r--cast/protocol/castv2/streaming_examples/offer.json2
-rw-r--r--cast/streaming/receiver_session.cc6
2 files changed, 5 insertions, 3 deletions
diff --git a/cast/protocol/castv2/streaming_examples/offer.json b/cast/protocol/castv2/streaming_examples/offer.json
index 7b0d1c6e..339b6d15 100644
--- a/cast/protocol/castv2/streaming_examples/offer.json
+++ b/cast/protocol/castv2/streaming_examples/offer.json
@@ -40,6 +40,6 @@
}
]
},
- "seqNum": 820263768,
+ "seqNum": 0,
"type": "OFFER"
} \ No newline at end of file
diff --git a/cast/streaming/receiver_session.cc b/cast/streaming/receiver_session.cc
index edf685c2..7e4c70d3 100644
--- a/cast/streaming/receiver_session.cc
+++ b/cast/streaming/receiver_session.cc
@@ -98,8 +98,10 @@ ReceiverSession::~ReceiverSession() {
}
void ReceiverSession::OnOffer(SenderMessage message) {
- // We just drop offers we can't respond to.
- if (message.sequence_number <= 0) {
+ // We just drop offers we can't respond to. Note that libcast senders will
+ // always send a strictly positive sequence numbers, but zero is permitted
+ // by the spec.
+ if (message.sequence_number < 0) {
OSP_DLOG_WARN
<< "Dropping offer with missing sequence number, can't respond";
return;