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, 62 insertions, 0 deletions

diff --git a/src/irmd/ipcp.h b/src/irmd/ipcp.h
new file mode 100644
index 00000000..930695fa
--- /dev/null
+++ b/src/irmd/ipcp.h
@@ -0,0 +1,62 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * The API for the IRM to instruct IPCPs
+ *
+ *    Sander Vrijders <sander.vrijders@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/irm_config.h>
+#include <ouroboros/sockets.h>
+#include <ouroboros/shared.h>
+
+#include <sys/types.h>
+
+#ifndef OUROBOROS_IPCP_H
+#define OUROBOROS_IPCP_H
+
+/* Returns the process id */
+pid_t ipcp_create(enum ipcp_type ipcp_type);
+
+int   ipcp_destroy(pid_t api);
+
+int   ipcp_enroll(pid_t  api,
+                  char * dif_name);
+
+int   ipcp_bootstrap(pid_t              api,
+                     dif_config_msg_t * conf);
+
+int   ipcp_name_reg(pid_t  api,
+                    char * name);
+int   ipcp_name_unreg(pid_t  api,
+                      char * name);
+
+int   ipcp_flow_alloc(pid_t         api,
+                      int           port_id,
+                      pid_t         n_api,
+                      char *        dst_name,
+                      char *        src_ae_name,
+                      enum qos_cube qos);
+int   ipcp_flow_alloc_resp(pid_t api,
+                           int   port_id,
+                           pid_t n_api,
+                           int   response);
+
+int   ipcp_flow_dealloc(pid_t api,
+                        int   port_id);
+
+#endif /* OUROBOROS_IPCP_H */