From: Philip Prindeville <philipp@xxxxxxxxxxxxxxxxxxxxx>
Not all modules compile equally welll when CONFIG_IPv6 is disabled.
Signed-off-by: Philip Prindeville <philipp@xxxxxxxxxxxxxxxxxxxxx>
---
extensions/xt_ECHO.c | 19 ++++++++++++++-----
extensions/xt_TARPIT.c | 2 ++
2 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/extensions/xt_ECHO.c b/extensions/xt_ECHO.c
index a0b718561db53ab468f86e17a05b5d991771d983..3c419f36f5169212af01cf62afa0b93456401767 100644
--- a/extensions/xt_ECHO.c
+++ b/extensions/xt_ECHO.c
@@ -22,7 +22,11 @@
#include <net/ip6_route.h>
#include <net/route.h>
#include "compat_xtables.h"
+#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
+# define WITH_IPV6 1
+#endif
+#ifdef WITH_IPV6
static unsigned int
echo_tg6(struct sk_buff *oldskb, const struct xt_action_param *par)
{
@@ -124,6 +128,7 @@ echo_tg6(struct sk_buff *oldskb, const struct xt_action_param *par)
kfree_skb(newskb);
return NF_DROP;
}
+#endif
static unsigned int
echo_tg4(struct sk_buff *oldskb, const struct xt_action_param *par)
@@ -219,21 +224,23 @@ static struct xt_target echo_tg_reg[] __read_mostly = {
{
.name = "ECHO",
.revision = 0,
- .family = NFPROTO_IPV6,
+ .family = NFPROTO_IPV4,
.proto = IPPROTO_UDP,
.table = "filter",
- .target = echo_tg6,
+ .target = echo_tg4,
.me = THIS_MODULE,
},
+#ifdef WITH_IPV6
{
.name = "ECHO",
.revision = 0,
- .family = NFPROTO_IPV4,
+ .family = NFPROTO_IPV6,
.proto = IPPROTO_UDP,
.table = "filter",
- .target = echo_tg4,
+ .target = echo_tg6,
.me = THIS_MODULE,
},
+#endif
};
static int __init echo_tg_init(void)
@@ -251,5 +258,7 @@ module_exit(echo_tg_exit);
MODULE_AUTHOR("Jan Engelhardt ");
MODULE_DESCRIPTION("Xtables: ECHO diagnosis target");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("ip6t_ECHO");
MODULE_ALIAS("ipt_ECHO");
+#ifdef WITH_IPV6
+MODULE_ALIAS("ip6t_ECHO");
+#endif
diff --git a/extensions/xt_TARPIT.c b/extensions/xt_TARPIT.c
index 0b70dd9c8d16fe9193125b66f0773af8b00a6e81..9a7ae5cc840683d96a98ba298626b81fee355ac1 100644
--- a/extensions/xt_TARPIT.c
+++ b/extensions/xt_TARPIT.c
@@ -532,4 +532,6 @@ MODULE_DESCRIPTION("Xtables: \"TARPIT\", capture and hold TCP connections");
MODULE_AUTHOR("Jan Engelhardt ");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_TARPIT");
+#ifdef WITH_IPV6
MODULE_ALIAS("ip6t_TARPIT");
+#endif
--
2.25.1
