[ovs-dev,net-next,v2,7/8] netfilter: nf_nat: register tftp NAT helper.

Message ID 20190413231716.28711-8-fbl@redhat.com
State New
Headers show
Series
  • openvswitch: load and reference the NAT helper
Related show

Commit Message

Flavio Leitner April 13, 2019, 11:17 p.m.
Signed-off-by: Flavio Leitner <fbl@redhat.com>
---
 net/netfilter/nf_nat_tftp.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

V2
  - defined NAT_HELPER_NAME for consistency.
  - C99 static change.
  - renamed the variables to be nat_helper.*

Patch

diff --git a/net/netfilter/nf_nat_tftp.c b/net/netfilter/nf_nat_tftp.c
index dd3a835c111d..e633b3863e33 100644
--- a/net/netfilter/nf_nat_tftp.c
+++ b/net/netfilter/nf_nat_tftp.c
@@ -13,10 +13,15 @@ 
 #include <net/netfilter/nf_nat_helper.h>
 #include <linux/netfilter/nf_conntrack_tftp.h>
 
+#define NAT_HELPER_NAME "tftp"
+
 MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
 MODULE_DESCRIPTION("TFTP NAT helper");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_NF_NAT_HELPER("tftp");
+MODULE_ALIAS_NF_NAT_HELPER(NAT_HELPER_NAME);
+
+static struct nf_conntrack_nat_helper nat_helper_tftp =
+	NF_CT_NAT_HELPER_INIT(NAT_HELPER_NAME);
 
 static unsigned int help(struct sk_buff *skb,
 			 enum ip_conntrack_info ctinfo,
@@ -37,6 +42,7 @@  static unsigned int help(struct sk_buff *skb,
 
 static void __exit nf_nat_tftp_fini(void)
 {
+	nf_nat_helper_unregister(&nat_helper_tftp);
 	RCU_INIT_POINTER(nf_nat_tftp_hook, NULL);
 	synchronize_rcu();
 }
@@ -44,6 +50,7 @@  static void __exit nf_nat_tftp_fini(void)
 static int __init nf_nat_tftp_init(void)
 {
 	BUG_ON(nf_nat_tftp_hook != NULL);
+	nf_nat_helper_register(&nat_helper_tftp);
 	RCU_INIT_POINTER(nf_nat_tftp_hook, help);
 	return 0;
 }