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-rw-r--r--third_party/libwebrtc/pc/srtp_session.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/srtp_session.h b/third_party/libwebrtc/pc/srtp_session.h
index 60f1860ada..f8fd3e3123 100644
--- a/third_party/libwebrtc/pc/srtp_session.h
+++ b/third_party/libwebrtc/pc/srtp_session.h
@@ -97,6 +97,14 @@ class SrtpSession {
// been set.
bool IsExternalAuthActive() const;
+ // Removes a SSRC from the underlying libSRTP session.
+ // Note: this should only be done for SSRCs that are received.
+ // Removing SSRCs that were sent and then reusing them leads to
+ // cryptographic weaknesses described in
+ // https://www.rfc-editor.org/rfc/rfc3711#section-8
+ // https://www.rfc-editor.org/rfc/rfc7714#section-8.4
+ bool RemoveSsrcFromSession(uint32_t ssrc);
+
private:
bool DoSetKey(int type,
int crypto_suite,