yang, ripngd: add 'frr-ripngd.yang' and associated stub callbacks

Introduce frr-ripngd.yang, which defines a model for managing the
FRR ripngd daemon.

Update the 'frr_yang_module_info' array of ripngd with the new
'frr-ripngd' module.

Add two new files (ripng_cli.[ch]) which should contain all ripngd
commands converted to the new northbound model. Centralizing all
commands in a single place will facilitate the process of moving
the CLI to a separate program in the future.

Add automatically generated stub callbacks in
ripng_northbound.c. These callbacks will be implemented gradually
in the following commits.

Add the confd.frr-ripngd.yang YANG module with annotations specific
to the ConfD daemon.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/ripngd/ripng_cli.c b/ripngd/ripng_cli.c
new file mode 100644
index 0000000000..b033a39ac6
--- /dev/null
+++ b/ripngd/ripng_cli.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 1998 Kunihiro Ishiguro
+ * Copyright (C) 2018 NetDEF, Inc.
+ *                    Renato Westphal
+ *
+ * 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; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <zebra.h>
+
+#include "if.h"
+#include "vrf.h"
+#include "log.h"
+#include "prefix.h"
+#include "command.h"
+#include "northbound_cli.h"
+#include "libfrr.h"
+
+#include "ripngd/ripngd.h"
+#include "ripngd/ripng_cli.h"
+#ifndef VTYSH_EXTRACT_PL
+#include "ripngd/ripng_cli_clippy.c"
+#endif
+
+void ripng_cli_init(void)
+{
+}