xtables-save: add -4 and -6 support
Now you can specify:
xtables-save -6 > my-ip6tables-ruleset
to dump the IPv6 rule-set.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/iptables/xtables-save.c b/iptables/xtables-save.c
index 05d06b1..111ad4b 100644
--- a/iptables/xtables-save.c
+++ b/iptables/xtables-save.c
@@ -32,6 +32,8 @@
{.name = "dump", .has_arg = false, .val = 'd'},
{.name = "table", .has_arg = true, .val = 't'},
{.name = "modprobe", .has_arg = true, .val = 'M'},
+ {.name = "ipv4", .has_arg = false, .val = '4'},
+ {.name = "ipv6", .has_arg = false, .val = '6'},
{NULL},
};
@@ -96,7 +98,7 @@
#endif
nft_init(&h);
- while ((c = getopt_long(argc, argv, "bcdt:", options, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "bcdt:46", options, NULL)) != -1) {
switch (c) {
case 'c':
show_counters = true;
@@ -112,6 +114,12 @@
case 'd':
do_output(&h, tablename, show_counters);
exit(0);
+ case '4':
+ h.family = AF_INET;
+ break;
+ case '6':
+ h.family = AF_INET6;
+ break;
}
}
