lib, ipcp: Revise fast path and flow interfaces

IPCPs can now use ap_init() to initialize the memory. All flows are
accessed using flow descriptors, this greatly simplifies IPCP
development. Reverts the fast path to a single ap_rbuff per process.
Splits lib/ipcp into irmd/ipcp and lib/ipcp-dev.  Adds a lib/shim-dev
holding tailored functions for shims.  Moves the buffer_t to utils.h.
Fixes the shim-eth-llc length field.  Removes the flow from shared.h.

Fixes #4
Fixes #5

1 files changed, 34 insertions, 0 deletions

diff --git a/include/ouroboros/local-dev.h b/include/ouroboros/local-dev.h
new file mode 100644
index 00000000..b4915672
--- /dev/null
+++ b/include/ouroboros/local-dev.h
@@ -0,0 +1,34 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Optimized calls for the local IPCPs
+ *
+ *    Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <ouroboros/shm_ap_rbuff.h>
+
+#ifndef OUROBOROS_LOCAL_DEV_H
+#define OUROBOROS_LOCAL_DEV_H
+
+/* returns flow descriptor and rb_entry, no access to du_buff */
+int     local_flow_read(struct rb_entry * e);
+
+int     local_flow_write(int               fd,
+                         struct rb_entry * e);
+
+#endif /* OUROBOROS_LOCAL_DEV_H */