ctdb-protocol: Add CTDB server SRVID range

Normally, communication from other components to ctdbd is done via
controls.  However, there are contexts where receiving SRVID messages
in ctdbd makes sense, such as replies to outgoing SRVID messages.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15858

Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

diff --git a/ctdb/protocol/protocol.h b/ctdb/protocol/protocol.h
index c775c4bcc64fca0c55378ac09de059e152b46b57..ecec0a458914280533ff030e6a3c86d203369e0a 100644 (file)
--- a/ctdb/protocol/protocol.h
+++ b/ctdb/protocol/protocol.h
@@ -234,6 +234,13 @@ struct ctdb_call {
 #define CTDB_SRVID_TEST_RANGE  0xAE00000000000000LL
 
 
+/* Range of ports reserved for CTDB server (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
+ * the CTDB server
+ */
+#define CTDB_SRVID_SERVER_RANGE  0x9E00000000000000LL
+
+
 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS          = 0,
                    CTDB_CONTROL_STATISTICS              = 1,
                    /* #2 removed */