staticd: add debug support

Add initial debug support to staticd, using the lib/debug
form of debug support.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

1 files changed, 124 insertions, 0 deletions

diff --git a/staticd/static_debug.c b/staticd/static_debug.c
new file mode 100644
index 0000000000..9906e805a7
--- /dev/null
+++ b/staticd/static_debug.c
@@ -0,0 +1,124 @@
+/*
+ * Staticd debug related functions
+ * Copyright (C) 2019 Volta Networks Inc.
+ * Mark Stapp
+ *
+ * This file is part of Free Range Routing (FRR).
+ *
+ * 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, 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 "lib/command.h"
+#include "lib/debug.h"
+
+#include "static_debug.h"
+
+/*
+ * Debug infra: a debug struct for each category, and a corresponding
+ * string.
+ */
+
+/* clang-format off */
+struct debug static_dbg_events = {0, "Staticd events"};
+
+struct debug *static_debug_arr[] =  {
+	&static_dbg_events
+};
+
+const char *static_debugs_conflines[] = {
+	"debug static events"
+};
+/* clang-format on */
+
+
+/*
+ * Set or unset all staticd debugs
+ *
+ * flags
+ *    The flags to set
+ *
+ * set
+ *    Whether to set or unset the specified flags
+ */
+static void static_debug_set_all(uint32_t flags, bool set)
+{
+	for (unsigned int i = 0; i < array_size(static_debug_arr); i++) {
+		DEBUG_FLAGS_SET(static_debug_arr[i], flags, set);
+
+		/* if all modes have been turned off, don't preserve options */
+		if (!DEBUG_MODE_CHECK(static_debug_arr[i], DEBUG_MODE_ALL))
+			DEBUG_CLEAR(static_debug_arr[i]);
+	}
+}
+
+static int static_debug_config_write_helper(struct vty *vty, bool config)
+{
+	uint32_t mode = DEBUG_MODE_ALL;
+
+	if (config)
+		mode = DEBUG_MODE_CONF;
+
+	for (unsigned int i = 0; i < array_size(static_debug_arr); i++)
+		if (DEBUG_MODE_CHECK(static_debug_arr[i], mode))
+			vty_out(vty, "%s\n", static_debugs_conflines[i]);
+
+	return 0;
+}
+
+int static_config_write_debug(struct vty *vty)
+{
+	return static_debug_config_write_helper(vty, true);
+}
+
+int static_debug_status_write(struct vty *vty)
+{
+	return static_debug_config_write_helper(vty, false);
+}
+
+/*
+ * Set debugging status.
+ *
+ * vtynode
+ *    vty->node
+ *
+ * onoff
+ *    Whether to turn the specified debugs on or off
+ *
+ * events
+ *    Debug general internal events
+ *
+ */
+void static_debug_set(int vtynode, bool onoff, bool events)
+{
+	uint32_t mode = DEBUG_NODE2MODE(vtynode);
+
+	if (events)
+		DEBUG_MODE_SET(&static_dbg_events, mode, onoff);
+}
+
+/*
+ * Debug lib initialization
+ */
+
+struct debug_callbacks static_dbg_cbs = {
+	.debug_set_all = static_debug_set_all
+};
+
+void static_debug_init(void)
+{
+	debug_init(&static_dbg_cbs);
+}