Avoid to print the reject with value in the translation when the value
is the default.
Before this patch:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with icmpv6 type port-unreachable
After this patch:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip6 filter FORWARD tcp dport 22 counter reject
Signed-off-by: Laura Garcia Liebana <nevola@xxxxxxxxx>
---
extensions/libip6t_REJECT.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/extensions/libip6t_REJECT.c b/extensions/libip6t_REJECT.c
index c30f292..d54c3b2 100644
--- a/extensions/libip6t_REJECT.c
+++ b/extensions/libip6t_REJECT.c
@@ -10,6 +10,8 @@
#include <xtables.h>
#include <linux/netfilter_ipv6/ip6t_REJECT.h>
+#define DEFAULT_REJECT_WITH IP6T_ICMP6_PORT_UNREACH
+
struct reject_names {
const char *name;
const char *alias;
@@ -81,7 +83,7 @@ static void REJECT_init(struct xt_entry_target *t)
struct ip6t_reject_info *reject = (struct ip6t_reject_info *)t->data;
/* default */
- reject->with = IP6T_ICMP6_PORT_UNREACH;
+ reject->with = DEFAULT_REJECT_WITH;
}
@@ -149,7 +151,10 @@ static int REJECT_xlate(const void *ip, const struct xt_entry_target *target,
for (i = 0; i < ARRAY_SIZE(reject_table_xlate); ++i)
if (reject_table_xlate[i].with == reject->with)
break;
- if (reject->with == IP6T_TCP_RESET)
+
+ if (reject->with == DEFAULT_REJECT_WITH)
+ xt_xlate_add(xl, "reject");
+ else if (reject->with == IP6T_TCP_RESET)
xt_xlate_add(xl, "reject with %s", reject_table_xlate[i].name);
else
xt_xlate_add(xl, "reject with icmpv6 type %s",
--
2.7.0
--
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