BMP: Fix connection management

Replace broken TCP connection management with a simple state machine.
Handle failed attempts properly with a timeout, detect and handle TCP
connection close and try to reconnect after that. Remove useless
'station_connected' flag.

Keep open messages saved even after the BMP session establishment,
so they can be used after BMP session flaps.

Use proper log messages for session events.

1 files changed, 0 insertions, 1 deletions

diff --git a/proto/bmp/bmp.h b/proto/bmp/bmp.h
index 22ee79c3..19623e33 100644
--- a/proto/bmp/bmp.h
+++ b/proto/bmp/bmp.h
@@ -81,7 +81,6 @@ struct bmp_proto {
   list tx_queue;                   // Stores queued packets going to be sent
   timer *connect_retry_timer;      // Timer for retrying connection to the BMP collector
   struct rt_table_info rt_table_in_pre_policy; // Pre-policy route import table
-  bool station_connected;          // Flag that stores connection status with BMP station
   bool started;                    // Flag that stores running status of BMP instance
 };