firewall3: support table load on access on Linux 5.15+

[project/firewall3.git] / main.c

diff --git a/main.c b/main.c
index 7ad00b424a7ce3355593ac35f8227ba4b47d2003..9afeb701edf1b1c3564dcea82da8e9ad248382a2 100644 (file)
--- a/main.c
+++ b/main.c
@@ -266,6 +266,17 @@ start(void)
                        continue;
                }
 
+               /* Linux 5.15+: make sure the tables are loaded and
+                * /proc/net/ip{,6}_tables_names are thus populated.
+                */
+               for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
+               {
+                       if (!(handle = fw3_ipt_open(family, table)))
+                               continue;
+
+                       fw3_ipt_close(handle);
+               }
+
                for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
                {
                        if (!fw3_has_table(family == FW3_FAMILY_V6, fw3_flag_names[table]))