Files
haproxy/include/haproxy/mux_quic.h
Willy Tarreau 01c2a4a86f MINOR: mux-quic: remove the now unneeded conn_stream from the qcs
Since we always have a valid endpoint we can safely use it to access
the conn_stream and stop using qcs->cs. That's one less pointer to
care about.
2022-05-13 14:28:48 +02:00

104 lines
3.0 KiB
C

#ifndef _HAPROXY_MUX_QUIC_H
#define _HAPROXY_MUX_QUIC_H
#ifdef USE_QUIC
#ifndef USE_OPENSSL
#error "Must define USE_OPENSSL"
#endif
#include <import/eb64tree.h>
#include <haproxy/api.h>
#include <haproxy/connection.h>
#include <haproxy/mux_quic-t.h>
#include <haproxy/stream.h>
#include <haproxy/xprt_quic-t.h>
struct qcs *qcs_new(struct qcc *qcc, uint64_t id, enum qcs_type type);
void qcs_free(struct qcs *qcs);
struct buffer *qc_get_buf(struct qcs *qcs, struct buffer *bptr);
int qcs_subscribe(struct qcs *qcs, int event_type, struct wait_event *es);
void qcs_notify_recv(struct qcs *qcs);
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, size_t *done);
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);
/* Bit shift to get the stream sub ID for internal use which is obtained
* shifting the stream IDs by this value, knowing that the
* QCS_ID_TYPE_SHIFT less significant bits identify the stream ID
* types (client initiated bidirectional, server initiated bidirectional,
* client initiated unidirectional, server initiated bidirectional).
* Note that there is no reference to such stream sub IDs in the RFC.
*/
#define QCS_ID_TYPE_MASK 0x3
#define QCS_ID_TYPE_SHIFT 2
/* The less significant bit of a stream ID is set for a server initiated stream */
#define QCS_ID_SRV_INTIATOR_BIT 0x1
/* This bit is set for unidirectional streams */
#define QCS_ID_DIR_BIT 0x2
static inline enum qcs_type qcs_id_type(uint64_t id)
{
return id & QCS_ID_TYPE_MASK;
}
/* Return true if stream has been opened locally. */
static inline int quic_stream_is_local(struct qcc *qcc, uint64_t id)
{
return conn_is_back(qcc->conn) == !(id & QCS_ID_SRV_INTIATOR_BIT);
}
/* Return true if stream is opened by peer. */
static inline int quic_stream_is_remote(struct qcc *qcc, uint64_t id)
{
return !quic_stream_is_local(qcc, id);
}
static inline int quic_stream_is_uni(uint64_t id)
{
return id & QCS_ID_DIR_BIT;
}
static inline int quic_stream_is_bidi(uint64_t id)
{
return !quic_stream_is_uni(id);
}
struct qcs *qcc_get_qcs(struct qcc *qcc, uint64_t id);
/* Install the <app_ops> applicative layer of a QUIC connection on mux <qcc>.
* Returns 0 on success else non-zero.
*/
static inline int qcc_install_app_ops(struct qcc *qcc,
const struct qcc_app_ops *app_ops)
{
qcc->app_ops = app_ops;
if (qcc->app_ops->init && !qcc->app_ops->init(qcc))
return 1;
if (qcc->app_ops->finalize)
qcc->app_ops->finalize(qcc->ctx);
return 0;
}
static inline struct conn_stream *qc_attach_cs(struct qcs *qcs, struct buffer *buf)
{
if (!cs_new_from_mux(qcs->endp, qcs->qcc->conn->owner, buf))
return NULL;
++qcs->qcc->nb_cs;
return qcs->endp->cs;
}
#endif /* USE_QUIC */
#endif /* _HAPROXY_MUX_QUIC_H */