IPv4LL: If we are not configuring, abort if address does not exist

Fixes a segfault as we would not add the address and we would expect to find it.
NetworkConfiguration · Aug 1, 2024 · c6a8fa1 · c6a8fa1
1 parent 5ac1235
commit c6a8fa1
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/ipv4ll.c b/src/ipv4ll.c
@@ -400,10 +400,13 @@ ipv4ll_start(void *arg)
 #ifdef IN_IFF_DUPLICATED
 		loginfox("%s: using IPv4LL address %s", ifp->name, ia->saddr);
 #endif
-	} else {
+	} else if (ifp->options->options & DHCPCD_CONFIGURE) {
 		loginfox("%s: probing for an IPv4LL address", ifp->name);
 		if (repick || state->pickedaddr.s_addr == INADDR_ANY)
 			ipv4ll_pickaddr(ifp);
+	} else {
+		logwarnx("%s: refusing to configure IPv4LL", ifp->name);
+		return;
 	}
 
 	ipv4ll_start_arp(ifp);