bfdd: add debug fine tuning capabilities

Move most of the log messages to debug guards so they only get activated
if the user configured the proper debug level.

Current debug levels:
- Peer events.
- Zebra events.
- Network layer debugs.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/bfdd/bfd.h b/bfdd/bfd.h
index a786bb71b..1cc9ddb47 100644
--- a/bfdd/bfd.h
+++ b/bfdd/bfd.h
@@ -393,7 +393,26 @@ struct bfd_global {
 	struct obslist bg_obslist;
 
 	struct zebra_privs_t bfdd_privs;
+
+	/* Debug options. */
+	/* Show all peer state changes events. */
+	bool debug_peer_event;
+	/*
+	 * Show zebra message exchanges:
+	 * - Interface add/delete.
+	 * - Local address add/delete.
+	 * - VRF add/delete.
+	 */
+	bool debug_zebra;
+	/*
+	 * Show network level debug information:
+	 * - Echo packets without session.
+	 * - Unavailable peer sessions.
+	 * - Network system call failures.
+	 */
+	bool debug_network;
 };
+
 extern struct bfd_global bglobal;
 extern const struct bfd_diag_str_list diag_list[];
 extern const struct bfd_state_str_list state_list[];