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MEDIUM: quic: Handle the RX in one pass

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Insert a loop around the existing code of qc_treat_rx_pkts() to handle all
the RX packets by encryption level for all the encryption levels allocated
for the connection, i.e. for all the encryption levels with secrets derived
from the ones provided by the TLS stack through ->set_encryption_secrets().
This commit is contained in:
Frédéric Lécaille 2023-06-22 18:54:21 +02:00 committed by Amaury Denoyelle
parent f7749968d6
commit 081f5002eb
1 changed files with 53 additions and 63 deletions
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22
src/quic_conn.c
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@ -4547,26 +4547,20 @@ static inline int qc_treat_rx_crypto_frms(struct quic_conn *qc,
return ret;
}
/* Process all the packets at <el> and <next_el> encryption level.
* This is the caller responsibility to check that <cur_el> is different of <next_el>
* as pointer value.
/* Process all the packets for all the encryption levels listed in <qc> QUIC connection.
* Return 1 if succeeded, 0 if not.
*/
int qc_treat_rx_pkts(struct quic_conn *qc, struct quic_enc_level *cur_el,
struct quic_enc_level *next_el)
int qc_treat_rx_pkts(struct quic_conn *qc)
{
int ret = 0;
struct eb64_node *node;
int64_t largest_pn = -1;
unsigned int largest_pn_time_received = 0;
struct quic_enc_level *qel = cur_el;
struct quic_enc_level *qel;
TRACE_ENTER(QUIC_EV_CONN_RXPKT, qc);
qel = cur_el;
next_tel:
if (!qel)
goto out;
list_for_each_entry(qel, &qc->qel_list, list) {
node = eb64_first(&qel->rx.pkts);
while (node) {
struct quic_rx_packet *pkt;
@ -4626,11 +4620,7 @@ int qc_treat_rx_pkts(struct quic_conn *qc, struct quic_enc_level *cur_el,
goto leave;
}
if (qel == cur_el) {
BUG_ON(qel == next_el);
qel = next_el;
largest_pn = -1;
goto next_tel;
}
out:
@ -5026,7 +5016,7 @@ struct task *quic_conn_app_io_cb(struct task *t, void *context, unsigned int sta
if (!LIST_ISEMPTY(&qel->rx.pqpkts) && qc_qel_may_rm_hp(qc, qel))
qc_rm_hp_pkts(qc, qel);
if (!qc_treat_rx_pkts(qc, qel, NULL)) {
if (!qc_treat_rx_pkts(qc)) {
TRACE_DEVEL("qc_treat_rx_pkts() failed", QUIC_EV_CONN_IO_CB, qc);
goto out;
}
@ -5127,7 +5117,7 @@ struct task *quic_conn_io_cb(struct task *t, void *context, unsigned int state)
if (!LIST_ISEMPTY(&qel->rx.pqpkts) && qc_qel_may_rm_hp(qc, qel))
qc_rm_hp_pkts(qc, qel);
if (!qc_treat_rx_pkts(qc, qel, next_qel))
if (!qc_treat_rx_pkts(qc))
goto out;
if (qc->flags & QUIC_FL_CONN_TO_KILL) {