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MINOR: quic: Drop 0-RTT packets without secrets

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If we received 0-RTT packets and no secrets were provided by the TLS stack
we must drop them.
This commit is contained in:
Frédéric Lécaille 2022-04-28 15:43:46 +02:00 committed by Amaury Denoyelle
parent 74cf237ecd
commit 1231d3c179
1 changed files with 19 additions and 5 deletions
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18
src/xprt_quic.c
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@ -4025,12 +4025,26 @@ struct task *quic_conn_io_cb(struct task *t, void *context, unsigned int state)
!(qc->flags & QUIC_FL_CONN_IMMEDIATE_CLOSE))
goto out;
if (zero_rtt && next_qel && !MT_LIST_ISEMPTY(&next_qel->rx.pqpkts) &&
(next_qel->tls_ctx.flags & QUIC_FL_TLS_SECRETS_SET)) {
if (next_qel && next_qel == &qc->els[QUIC_TLS_ENC_LEVEL_EARLY_DATA] &&
!MT_LIST_ISEMPTY(&next_qel->rx.pqpkts)) {
if ((next_qel->tls_ctx.flags & QUIC_FL_TLS_SECRETS_SET)) {
qel = next_qel;
next_qel = NULL;
goto next_level;
}
else {
struct quic_rx_packet *pkt;
struct mt_list *elt1, elt2;
struct quic_enc_level *aqel = &qc->els[QUIC_TLS_ENC_LEVEL_EARLY_DATA];
/* Drop these 0-RTT packets */
TRACE_PROTO("drop all 0-RTT packets", QUIC_EV_CONN_PHPKTS, qc);
mt_list_for_each_entry_safe(pkt, &aqel->rx.pqpkts, list, elt1, elt2) {
MT_LIST_DELETE_SAFE(elt1);
quic_rx_packet_refdec(pkt);
}
}
}
st = qc->state;
if (st >= QUIC_HS_ST_COMPLETE) {