1 files changed, 107 insertions, 0 deletions
diff --git a/include/haproxy/quic_sock.h b/include/haproxy/quic_sock.h
new file mode 100644
index 0000000..531cf62
--- /dev/null
+++ b/include/haproxy/quic_sock.h
@@ -0,0 +1,107 @@
+/*
+ * include/haproxy/quic_sock.h
+ * This file contains declarations for QUIC sockets.
+ *
+ * Copyright 2020 Frederic Lecaille <flecaille@haproxy.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _HAPROXY_QUIC_SOCK_H
+#define _HAPROXY_QUIC_SOCK_H
+#ifdef USE_QUIC
+#ifndef USE_OPENSSL
+#error "Must define USE_OPENSSL"
+#endif
+
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <haproxy/api.h>
+#include <haproxy/connection-t.h>
+#include <haproxy/listener-t.h>
+#include <haproxy/quic_conn-t.h>
+#include <haproxy/quic_sock-t.h>
+
+int quic_session_accept(struct connection *cli_conn);
+int quic_sock_get_src(struct connection *conn, struct sockaddr *addr, socklen_t len);
+int quic_sock_get_dst(struct connection *conn, struct sockaddr *addr, socklen_t len);
+int quic_sock_accepting_conn(const struct receiver *rx);
+struct connection *quic_sock_accept_conn(struct listener *l, int *status);
+
+struct task *quic_lstnr_dghdlr(struct task *t, void *ctx, unsigned int state);
+void quic_lstnr_sock_fd_iocb(int fd);
+int qc_snd_buf(struct quic_conn *qc, const struct buffer *buf, size_t count,
+               int flags);
+int qc_rcv_buf(struct quic_conn *qc);
+void quic_conn_sock_fd_iocb(int fd);
+
+void qc_alloc_fd(struct quic_conn *qc, const struct sockaddr_storage *src,
+                 const struct sockaddr_storage *dst);
+void qc_release_fd(struct quic_conn *qc, int reinit);
+void qc_want_recv(struct quic_conn *qc);
+
+void quic_accept_push_qc(struct quic_conn *qc);
+
+int quic_listener_max_handshake(const struct listener *l);
+int quic_listener_max_accept(const struct listener *l);
+
+/* Set default value for <qc> socket as uninitialized. */
+static inline void qc_init_fd(struct quic_conn *qc)
+{
+	qc->fd = -1;
+}
+
+/* Returns true if <qc> socket is initialized else false. */
+static inline char qc_test_fd(struct quic_conn *qc)
+{
+	/* quic-conn socket should not be accessed once it has been released. */
+	BUG_ON(qc->fd == DEAD_FD_MAGIC);
+	return qc->fd >= 0;
+}
+
+/* Try to increment <l> handshake current counter. If listener limit is
+ * reached, incrementation is rejected and 0 is returned.
+ */
+static inline int quic_increment_curr_handshake(struct listener *l)
+{
+	unsigned int count, next;
+	const int max = quic_listener_max_handshake(l);
+
+	do {
+		count = l->rx.quic_curr_handshake;
+		if (count >= max) {
+			/* maxconn reached */
+			next = 0;
+			goto end;
+		}
+
+		/* try to increment quic_curr_handshake */
+		next = count + 1;
+	} while (!_HA_ATOMIC_CAS(&l->rx.quic_curr_handshake, &count, next) && __ha_cpu_relax());
+
+ end:
+	return next;
+}
+
+#endif /* USE_QUIC */
+#endif /* _HAPROXY_QUIC_SOCK_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */