lib, ipcpd, irmd: Register hash instead of name

All information passed over the IRMd/IPCP boundary for using IPC
services (flow allocation, registration) is now hashed. This
effectively fixes the shared namespace between DIFs and the IRMDs.

This PR also fixes some API issues (adding const identifiers),
shuffles the include headers a bit and some small bugs.

1 files changed, 80 insertions, 0 deletions

diff --git a/include/ouroboros/ipcp.h b/include/ouroboros/ipcp.h
new file mode 100644
index 00000000..f439f29b
--- /dev/null
+++ b/include/ouroboros/ipcp.h
@@ -0,0 +1,80 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * IPCP definitions and policies
+ *
+ *    Dimitri Staessens <dimitri.staessens@ugent.be>
+ *    Sander Vrijders   <sander.vrijders@ugent.be>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * 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 OUROBOROS_IPCP_H
+#define OUROBOROS_IPCP_H
+
+#include <stdint.h>
+#include <unistd.h>
+#include <stdbool.h>
+
+/*
+ * NOTE: the IRMd uses this order to select an IPCP
+ * for flow allocation
+ */
+enum ipcp_type {
+        IPCP_LOCAL = 0,
+        IPCP_SHIM_ETH_LLC,
+        IPCP_SHIM_UDP,
+        IPCP_NORMAL
+};
+
+/* IPCP policies */
+enum pol_addr_auth {
+        FLAT_RANDOM = 0
+};
+
+enum pol_gam {
+        COMPLETE = 0
+};
+
+struct ipcp_config {
+        char *             dif_name;
+        enum ipcp_type     type;
+        uint16_t           dir_hash_len;
+
+        /* Normal DIF */
+        uint8_t            addr_size;
+        uint8_t            cep_id_size;
+        uint8_t            pdu_length_size;
+        uint8_t            seqno_size;
+
+        bool               has_ttl;
+        bool               has_chk;
+
+        uint32_t           min_pdu_size;
+        uint32_t           max_pdu_size;
+
+        enum pol_addr_auth addr_auth_type;
+        enum pol_gam       dt_gam_type;
+        enum pol_gam       rm_gam_type;
+
+        /* Shim UDP */
+        uint32_t           ip_addr;
+        uint32_t           dns_addr;
+
+        /* Shim Ethernet LLC */
+        char *             if_name;
+};
+
+#endif /* OUROBOROS_IPCP_H */