From: Roy Marples <roy@marples.name>
Date: Tue, 30 Sep 2025 08:41:18 +0000 (+0100)
Subject: route: Don't change them when exiting with persistence.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=195e8bdc38af6fa7936dc8435809ffd97c0b7075;p=thirdparty%2Fdhcpcd.git

route: Don't change them when exiting with persistence.

If an interface stops, it might affect the routing priority.
When dhcpcd is exiting we want to avoid this behaviour to keep
the system running as best as.
---

diff --git a/src/route.c b/src/route.c
index 57f9b187..a31c4f73 100644
--- a/src/route.c
+++ b/src/route.c
@@ -758,6 +758,12 @@ rt_build(struct dhcpcd_ctx *ctx, int af)
 	struct rt *rt, *rtn;
 	unsigned long long o;
 
+	/* When exiting with persistence, don't change any routing
+	 * which maybe affected by interfaces stopping. */
+	if ((ctx->options & (DHCPCD_EXITING | DHCPCD_PERSISTENT)) ==
+	    (DHCPCD_EXITING | DHCPCD_PERSISTENT))
+		return;
+
 	rb_tree_init(&routes, &rt_compare_proto_ops);
 	rb_tree_init(&added, &rt_compare_os_ops);
 	rb_tree_init(&kroutes, &rt_compare_os_ops);