Set mtu for DTLS to 1280
Set mtu for DTLS to 1280, otherwise it defaults to 256 in recent
versions of openssl.
R=juberti@webrtc.org
Review URL: https://codereview.webrtc.org/1174483002.
Cr-Commit-Position: refs/heads/master@{#9407}
diff --git a/webrtc/base/opensslstreamadapter.cc b/webrtc/base/opensslstreamadapter.cc
index e12940f..51921f1 100644
--- a/webrtc/base/opensslstreamadapter.cc
+++ b/webrtc/base/opensslstreamadapter.cc
@@ -260,6 +260,12 @@
return 0;
case BIO_CTRL_FLUSH:
return 1;
+ case BIO_CTRL_DGRAM_QUERY_MTU:
+ // openssl defaults to mtu=256 unless we return something here.
+ // The handshake doesn't actually need to send packets above 1k,
+ // so this seems like a sensible value that should work in most cases.
+ // Webrtc uses the same value for video packets.
+ return 1200;
default:
return 0;
}
