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Treat larger last stream ID in GOAWAY than previous value as PROTOCOL_ERROR

This commit is contained in:
Tatsuhiro Tsujikawa 2014-06-28 10:46:05 +09:00
parent 305efe4181
commit ff3a4a770f
1 changed files with 8 additions and 1 deletions
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9
lib/nghttp2_session.c
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@ -329,7 +329,7 @@ static int session_new(nghttp2_session **session_ptr,
(*session_ptr)->goaway_flags = NGHTTP2_GOAWAY_NONE;
(*session_ptr)->local_last_stream_id = (1u << 31) - 1;
(*session_ptr)->remote_last_stream_id = 0;
(*session_ptr)->remote_last_stream_id = (1u << 31) - 1;
(*session_ptr)->inflight_niv = -1;
@ -3545,6 +3545,13 @@ int nghttp2_session_on_goaway_received(nghttp2_session *session,
return session_handle_invalid_connection(session, frame,
NGHTTP2_PROTOCOL_ERROR);
}
/* Draft says Endpoints MUST NOT increase the value they send in the
last stream identifier. */
if(session->remote_last_stream_id < frame->goaway.last_stream_id) {
return session_handle_invalid_connection(session, frame,
NGHTTP2_PROTOCOL_ERROR);
}
session->remote_last_stream_id = frame->goaway.last_stream_id;
session->goaway_flags |= NGHTTP2_GOAWAY_RECV;
return session_call_on_frame_received(session, frame);