1 files changed, 99 insertions, 0 deletions
diff --git a/src/ipcpd/unicast/ca.c b/src/ipcpd/unicast/ca.c
new file mode 100644
index 00000000..f93d0504
--- /dev/null
+++ b/src/ipcpd/unicast/ca.c
@@ -0,0 +1,99 @@
+/*
+ * 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/.
+ */
+
+#define OUROBOROS_PREFIX "ca"
+
+#include <ouroboros/logs.h>
+
+#include "ca.h"
+#include "pol-ca-ops.h"
+#include "pol/ca-mb-ecn.h"
+#include "pol/ca-nop.h"
+
+struct {
+        struct pol_ca_ops * ops;
+} ca;
+
+int ca_init(enum pol_cong_avoid pol)
+{
+        switch(pol) {
+        case CA_NONE:
+                log_dbg("Disabling congestion control.");
+                ca.ops = &nop_ca_ops;
+                break;
+        case CA_MB_ECN:
+                log_dbg("Using multi-bit ECN.");
+                ca.ops = &mb_ecn_ca_ops;
+                break;
+        default:
+                return -1;
+        }
+
+        return 0;
+}
+
+
+void ca_fini(void)
+{
+        ca.ops = NULL;
+}
+
+void * ca_ctx_create(void)
+{
+        return ca.ops->ctx_create();
+}
+
+void ca_ctx_destroy(void * ctx)
+{
+        return ca.ops->ctx_destroy(ctx);
+}
+
+ca_wnd_t ca_ctx_update_snd(void * ctx,
+                           size_t len)
+{
+        return ca.ops->ctx_update_snd(ctx, len);
+}
+
+bool ca_ctx_update_rcv(void *     ctx,
+                       size_t     len,
+                       uint8_t    ecn,
+                       uint16_t * ece)
+{
+        return ca.ops->ctx_update_rcv(ctx, len, ecn, ece);
+}
+
+void ca_ctx_update_ece(void *   ctx,
+                       uint16_t ece)
+{
+        return ca.ops->ctx_update_ece(ctx, ece);
+}
+
+void ca_wnd_wait(ca_wnd_t wnd)
+{
+        return ca.ops->wnd_wait(wnd);
+}
+
+uint8_t ca_calc_ecn(int    fd,
+                    size_t len)
+{
+        return ca.ops->calc_ecn(fd, len);
+}