1 files changed, 61 insertions, 0 deletions
diff --git a/src/ipcpd/unicast/ca.h b/src/ipcpd/unicast/ca.h
new file mode 100644
index 00000000..5cf6199c
--- /dev/null
+++ b/src/ipcpd/unicast/ca.h
@@ -0,0 +1,61 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2020
+ *
+ * Congestion avoidance
+ *
+ *    Dimitri Staessens <[email protected]>
+ *    Sander Vrijders   <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., http://www.fsf.org/about/contact/.
+ */
+
+#ifndef OUROBOROS_IPCPD_UNICAST_CA_H
+#define OUROBOROS_IPCPD_UNICAST_CA_H
+
+#include <ouroboros/ipcp.h>
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+typedef union {
+        time_t wait;
+} ca_wnd_t;
+
+int      ca_init(enum pol_cong_avoid ca);
+
+void     ca_fini(void);
+
+
+/* OPS */
+void *   ca_ctx_create(void);
+
+void     ca_ctx_destroy(void * ctx);
+
+ca_wnd_t ca_ctx_update_snd(void * ctx,
+                           size_t len);
+
+bool     ca_ctx_update_rcv(void *     ctx,
+                           size_t     len,
+                           uint8_t    ecn,
+                           uint16_t * ece);
+
+void     ca_ctx_update_ece(void *   ctx,
+                           uint16_t ece);
+
+void     ca_wnd_wait(ca_wnd_t wnd);
+
+uint8_t  ca_calc_ecn(int    fd,
+                     size_t len);
+
+#endif /* OUROBOROS_IPCPD_UNICAST_CA_H */