lib, irmd, irm: Add dif_config

This adds dif_config to the prototype, in which one is able to specify
the parameters a DIF should have. The bootstrap operation of an IPCP
takes this as parameter and is oblivious to whether it is a shim or a
normal IPCP. The dif_config struct is also correctly serialized and
deserialized and passed opaquely to the correct IPCP. This IPCP is in
charge of deserializing it correctly.

1 files changed, 61 insertions, 0 deletions

diff --git a/include/ouroboros/dif_config.h b/include/ouroboros/dif_config.h
new file mode 100644
index 00000000..5443085e
--- /dev/null
+++ b/include/ouroboros/dif_config.h
@@ -0,0 +1,61 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * DIF configurations for each IPCP type
+ *
+ *    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/utils.h>
+
+#ifndef OUROBOROS_DIF_CONFIG_H
+#define OUROBOROS_DIF_CONFIG_H
+
+enum ipcp_type {
+        NORMAL_IPCP = 1,
+        SHIM_UDP_IPCP
+};
+
+struct dif_config {
+        char * dif_name;
+        enum ipcp_type type;
+
+        union {
+                /* Normal DIF */
+                struct {
+                        uint8_t addr_size;
+                        uint8_t cep_id_size;
+                        uint8_t pdu_length_size;
+                        uint8_t qos_id_size;
+                        uint8_t seqno_size;
+
+                        /* DUP constants */
+                        uint8_t ttl_size;
+                        uint8_t chk_size;
+
+                        uint32_t min_pdu_size;
+                        uint32_t max_pdu_size;
+                };
+                /* Shim UDP */
+                struct {
+                        uint32_t ip_addr;
+                };
+        };
+};
+
+
+#endif /* OUROBOROS_DIF_CONFIG_H */