# HG changeset patch
# User Sergey Kandaurov <pluknet@nginx.com>
# Date 1585736862 -10800
# Node ID c9fbe9508e1ff6780b377e6bd310de61692f626f
# Parent  23a2b5e7acc8c46bfa188ace371e3d6f6c0d6662
QUIC packet padding to fulfil header protection sample demands.

diff --git a/src/event/ngx_event_quic.c b/src/event/ngx_event_quic.c
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -1369,6 +1369,11 @@ ngx_quic_frames_send(ngx_connection_t *c
 
     out.len = p - out.data;
 
+    while (out.len < 4) {
+        *p++ = NGX_QUIC_FT_PADDING;
+        out.len++;
+    }
+
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
                    "packet ready: %ui bytes at level %d",
                    out.len, start->level);