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build: cure overall build failure when CONFIG_NF_NAT=n

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This commit is contained in:
Jan Engelhardt
2020-11-22 17:45:37 +01:00
parent a1b3d81ccb
commit a35feefa0f
1 changed files with 14 additions and 7 deletions
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21
extensions/xt_DNETMAP.c
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@@ -19,9 +19,10 @@
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#ifdef CONFIG_NF_NAT
#include <linux/inet.h>
#include <linux/ip.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
@@ -36,12 +37,6 @@
#include "compat_xtables.h"
#include "xt_DNETMAP.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marek Kierdelewicz <marek@piasta.pl>");
MODULE_DESCRIPTION(
"Xtables: dynamic two-way 1:1 NAT mapping of IPv4 addresses");
MODULE_ALIAS("ipt_DNETMAP");
static unsigned int default_ttl = 600;
static unsigned int proc_perms = S_IRUGO | S_IWUSR;
static unsigned int proc_uid;
@@ -921,6 +916,18 @@ static void __exit dnetmap_tg_exit(void)
xt_unregister_target(&dnetmap_tg_reg);
unregister_pernet_subsys(&dnetmap_net_ops);
}
#else /* CONFIG_NF_NAT */
static int __init dnetmap_tg_init(void)
{
pr_err("CONFIG_NF_NAT is not available in your kernel, hence this module cannot function.");
return -EINVAL;
}
static void __exit dnetmap_tg_exit(void) {}
#endif
module_init(dnetmap_tg_init);
module_exit(dnetmap_tg_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marek Kierdelewicz <marek@piasta.pl>");
MODULE_DESCRIPTION("Xtables: dynamic two-way 1:1 NAT mapping of IPv4 addresses");
MODULE_ALIAS("ipt_DNETMAP");