git: 1c5021f5251b - main - ifconfig: print warning and return success on ipfw0, ipfwlog0 cloning

The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=1c5021f5251b231b614ad9cd175bcb4250495c12

commit 1c5021f5251b231b614ad9cd175bcb4250495c12
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2025-12-15 20:51:47 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2025-12-15 21:17:23 +0000

    ifconfig: print warning and return success on ipfw0, ipfwlog0 cloning
    
    This should provide people a chance to remove ipfw0 and ipfwlog0 from
    cloned_interfaces in their rc.conf during FreeBSD 16.x lifetime.
    
    Differential Revision:  https://reviews.freebsd.org/D53876
---
 sbin/ifconfig/ifclone.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sbin/ifconfig/ifclone.c b/sbin/ifconfig/ifclone.c
index f44d052c97ad..8941d17ad205 100644
--- a/sbin/ifconfig/ifclone.c
+++ b/sbin/ifconfig/ifclone.c
@@ -117,6 +117,15 @@ ifclonecreate(if_ctx *ctx, void *arg __unused)
 {
 	struct ifreq ifr = {};
 	struct clone_defcb *dcp;
+	u_int u;
+
+	/* Warning to be removed in FreeBSD 17.0 */
+	if (sscanf(ctx->ifname, "ipfw%u", &u) == 1 ||
+	    sscanf(ctx->ifname, "ipfwlog%u", &u) == 1) {
+		warnx("ipfw(4) logging does not need interface creation "
+		     "in FreeBSD 16.0");
+		return;
+	}
 
 	strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name));