MINOR: quic: Probe several packet number space upon timer expiration

When the loss detection timer expires, we SHOULD include new data in
our probing packets (RFC 9002 par 6.2.4. Sending Probe Packets).

diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index 3152f27d362bde655c8902986d9e52053c4d57cc..9ab675c1dea7c64ec3d1069a6b9a17e0efe43601 100644 (file)
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -3302,7 +3302,7 @@ static struct task *process_timer(struct task *task, void *ctx, unsigned int sta
        struct ssl_sock_ctx *conn_ctx;
        struct quic_conn *qc;
        struct quic_pktns *pktns;
-       int st;
+       int i, st;
 
        conn_ctx = task->context;
        qc = conn_ctx->qc;
@@ -3338,6 +3338,17 @@ static struct task *process_timer(struct task *task, void *ctx, unsigned int sta
                if (iel->tls_ctx.rx.flags == QUIC_FL_TLS_SECRETS_SET)
                        iel->pktns->tx.pto_probe = 1;
        }
+
+       for (i = QUIC_TLS_ENC_LEVEL_INITIAL; i < QUIC_TLS_ENC_LEVEL_MAX; i++) {
+               int j;
+
+               if (i == QUIC_TLS_ENC_LEVEL_APP && !quic_peer_validated_addr(qc))
+                   continue;
+
+               for (j = 0; j < qc->els[i].pktns->tx.pto_probe; j++)
+                       qc_prep_fast_retrans(&qc->els[i], qc);
+       }
+
        tasklet_wakeup(conn_ctx->wait_event.tasklet);
        qc->path->loss.pto_count++;