NetworkManager/0002-firewall-Default-to-iptables-backend-to-preserve-behavior.patch

From af25d85a43eb2aa59a80c13aa214cbc5509b6815 Mon Sep 17 00:00:00 2001
From: Wen Liang <wenliang@redhat.com>
Date: Wed, 16 Jun 2021 22:43:32 +0200
Subject: [PATCH] firewall: Default to iptables backend to preserve behavior

For upsteam, the default is "nftables" (if nft is installed). On RHEL8, we will
always default to "iptables" to preserve behavior.
---
 src/core/nm-firewall-utils.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/core/nm-firewall-utils.c b/src/core/nm-firewall-utils.c
index 1311f5039910..3284b5ebaa4b 100644
--- a/src/core/nm-firewall-utils.c
+++ b/src/core/nm-firewall-utils.c
@@ -743,12 +743,9 @@ nm_firewall_config_apply(NMFirewallConfig *self, gboolean shared)
 static NMFirewallBackend
 _firewall_backend_detect(void)
 {
-    if (g_file_test(NFT_PATH, G_FILE_TEST_IS_EXECUTABLE))
-        return NM_FIREWALL_BACKEND_NFTABLES;
-    if (g_file_test(IPTABLES_PATH, G_FILE_TEST_IS_EXECUTABLE))
-        return NM_FIREWALL_BACKEND_IPTABLES;
-
-    return NM_FIREWALL_BACKEND_NFTABLES;
+    /* For upsteam, the default is "nftables" (if nft is installed). On RHEL8, we will
+     * always default to "iptables" to preserve behavior. */
+    return NM_FIREWALL_BACKEND_IPTABLES;
 }
 
 NMFirewallBackend
-- 
2.31.1