lib: Provide RIB API to export internals via fuse

This adds a virtual RIB that is accessible as a filesystem that is
accessed through a fuse mountpoint (configurable , default is
/tmp/ouroboros). Currently, each IPCP will export its link state
database.

1 files changed, 46 insertions, 0 deletions

diff --git a/include/ouroboros/rib.h b/include/ouroboros/rib.h
new file mode 100644
index 00000000..9642cb24
--- /dev/null
+++ b/include/ouroboros/rib.h
@@ -0,0 +1,46 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * RIB export using FUSE
+ *
+ *    Dimitri Staessens <[email protected]>
+ *    Sander Vrijders   <[email protected]>
+ *
+ * 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., http://www.fsf.org/about/contact/.
+ */
+
+#ifndef OUROBOROS_LIB_RIB_H
+#define OUROBOROS_LIB_RIB_H
+
+#define RIB_PATH_LEN 128
+
+struct rib;
+
+struct rib_ops {
+        int (* read)(const char * path,
+                     char *       buf,
+                     size_t       len);
+        int (* readdir)(char *** entries);
+};
+
+int  rib_init(const char * prefix);
+
+void rib_fini(void);
+
+int  rib_reg(const char *     path,
+             struct rib_ops * ops);
+
+void rib_unreg(const char * path);
+
+#endif /* OUROBOROS_LIB_RIB_H */