add reload command to selectively rebuild rules (to be invoked from hotplug handler...

[project/firewall3.git] / defaults.c

diff --git a/defaults.c b/defaults.c
index e1710c2..d2037f8 100644 (file)
--- a/defaults.c
+++ b/defaults.c
@@ -181,6 +181,7 @@ fw3_print_default_chains(enum fw3_table table, enum fw3_family family,
                          struct fw3_state *state)
 {
        struct fw3_defaults *defs = &state->defaults;
+       uint16_t mask = ~0;
 
 #define policy(t) \
        ((t == FW3_TARGET_REJECT) ? "DROP" : fw3_flag_names[t])
@@ -192,7 +193,11 @@ fw3_print_default_chains(enum fw3_table table, enum fw3_family family,
                fw3_pr(":OUTPUT %s [0:0]\n", policy(defs->policy_output));
        }
 
-       print_chains(table, family, ":%s - [0:0]\n", defs->flags,
+       /* user chains already loaded, don't create again */
+       if (hasbit(state->running_defaults.flags, FW3_DEFAULT_CUSTOM_CHAINS))
+               delbit(mask, FW3_DEFAULT_CUSTOM_CHAINS);
+
+       print_chains(table, family, ":%s - [0:0]\n", defs->flags & mask,
                     default_chains, ARRAY_SIZE(default_chains));
 }
 
@@ -299,23 +304,27 @@ fw3_flush_rules(enum fw3_table table, enum fw3_family family,
                 bool pass2, struct fw3_state *state)
 {
        struct fw3_defaults *d = &state->running_defaults;
+       uint16_t mask = ~0;
 
        if (!hasbit(d->flags, family))
                return;
 
+       /* don't touch user chains on selective stop */
+       delbit(mask, FW3_DEFAULT_CUSTOM_CHAINS);
+
        if (!pass2)
        {
                reset_policy(table);
 
-               print_chains(table, family, "-D %s\n", state->running_defaults.flags,
+               print_chains(table, family, "-D %s\n", d->flags & mask,
                                         toplevel_rules, ARRAY_SIZE(toplevel_rules));
 
-               print_chains(table, family, "-F %s\n", state->running_defaults.flags,
+               print_chains(table, family, "-F %s\n", d->flags & mask,
                                         default_chains, ARRAY_SIZE(default_chains));
        }
        else
        {
-               print_chains(table, family, "-X %s\n", state->running_defaults.flags,
+               print_chains(table, family, "-X %s\n", d->flags & mask,
                                         default_chains, ARRAY_SIZE(default_chains));
 
                delbit(d->flags, family);