made supernode ignore own registration attempts to allow unified configuration (command line-provided supernodes) of federated supernodes (#970)

Logan007 · web-flow · commit 5f60a6b3334d · 2022-03-20T12:48:40.000+01:00
diff --git a/src/sn_utils.c b/src/sn_utils.c
@@ -1938,6 +1938,11 @@ static int process_udp (n2n_sn_t * sss,
                }
             }
 
+            if(!memcmp(reg.edgeMac, sss->mac_addr, sizeof(n2n_mac_t))) {
+                traceEvent(TRACE_DEBUG, "Rx REGISTER_SUPER from self, ignoring");
+                return -1;
+            }
+
             cmn2.ttl = N2N_DEFAULT_TTL;
             cmn2.pc = n2n_register_super_ack;
             cmn2.flags = N2N_FLAGS_SOCKET | N2N_FLAGS_FROM_SUPERNODE;

Original file line number	Diff line number	Diff line change
`@@ -1938,6 +1938,11 @@ static int process_udp (n2n_sn_t * sss,`
`1938`	`1938`	`}`
`1939`	`1939`	`}`
`1940`	`1940`
	`1941`	`+ if(!memcmp(reg.edgeMac, sss->mac_addr, sizeof(n2n_mac_t))) {`
	`1942`	`+ traceEvent(TRACE_DEBUG, "Rx REGISTER_SUPER from self, ignoring");`
	`1943`	`+ return -1;`
	`1944`	`+ }`
	`1945`	`+`
`1941`	`1946`	`cmn2.ttl = N2N_DEFAULT_TTL;`
`1942`	`1947`	`cmn2.pc = n2n_register_super_ack;`
`1943`	`1948`	`cmn2.flags = N2N_FLAGS_SOCKET \| N2N_FLAGS_FROM_SUPERNODE;`