MINOR: mux-quic: support MAX_DATA frame parsing

This commit is similar to the previous one but with MAX_DATA frames.
This allows to increase the connection level flow-control limit. If the
connection was blocked due to QC_CF_BLK_MFCTL flag, the flag is reseted.
This commit is contained in:
Amaury Denoyelle 2022-03-08 16:23:03 +01:00
parent 8727ff4668
commit 1e5e5136ee
3 changed files with 24 additions and 0 deletions

View File

@ -22,6 +22,7 @@ void qcs_notify_send(struct qcs *qcs);
int qcc_recv(struct qcc *qcc, uint64_t id, uint64_t len, uint64_t offset,
char fin, char *data, struct qcs **out_qcs);
int qcc_recv_max_data(struct qcc *qcc, uint64_t max);
int qcc_recv_max_stream_data(struct qcc *qcc, uint64_t id, uint64_t max);
int qcc_decode_qcs(struct qcc *qcc, struct qcs *qcs);
void qcc_streams_sent_done(struct qcs *qcs, uint64_t data, uint64_t offset);

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@ -253,6 +253,24 @@ int qcc_recv(struct qcc *qcc, uint64_t id, uint64_t len, uint64_t offset,
return 0;
}
/* Handle a new MAX_DATA frame. <max> must contains the maximum data field of
* the frame.
*
* Returns 0 on success else non-zero.
*/
int qcc_recv_max_data(struct qcc *qcc, uint64_t max)
{
if (qcc->rfctl.md < max) {
qcc->rfctl.md = max;
if (qcc->flags & QC_CF_BLK_MFCTL) {
qcc->flags &= ~QC_CF_BLK_MFCTL;
tasklet_wakeup(qcc->wait_event.tasklet);
}
}
return 0;
}
/* Handle a new MAX_STREAM_DATA frame. <max> must contains the maximum data
* field of the frame and <id> is the identifier of the QUIC stream.
*

View File

@ -2455,6 +2455,11 @@ static int qc_parse_pkt_frms(struct quic_rx_packet *pkt, struct ssl_sock_ctx *ct
break;
}
case QUIC_FT_MAX_DATA:
if (qc->mux_state == QC_MUX_READY) {
struct quic_max_data *data = &frm.max_data;
qcc_recv_max_data(qc->qcc, data->max_data);
}
break;
case QUIC_FT_MAX_STREAM_DATA:
if (qc->mux_state == QC_MUX_READY) {
struct quic_max_stream_data *data = &frm.max_stream_data;