[ovs-dev] [PATCH net-next v2 4/8] netfilter: nf_nat: register ftp NAT helper.
Flavio Leitner
fbl at redhat.com
Sat Apr 13 23:17:12 UTC 2019
Signed-off-by: Flavio Leitner <fbl at redhat.com>
---
net/netfilter/nf_nat_ftp.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.*
diff --git a/net/netfilter/nf_nat_ftp.c b/net/netfilter/nf_nat_ftp.c
index 0e93b1f19432..0ea6b1bc52de 100644
--- a/net/netfilter/nf_nat_ftp.c
+++ b/net/netfilter/nf_nat_ftp.c
@@ -21,13 +21,18 @@
#include <net/netfilter/nf_conntrack_expect.h>
#include <linux/netfilter/nf_conntrack_ftp.h>
+#define NAT_HELPER_NAME "ftp"
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Rusty Russell <rusty at rustcorp.com.au>");
MODULE_DESCRIPTION("ftp NAT helper");
-MODULE_ALIAS_NF_NAT_HELPER("ftp");
+MODULE_ALIAS_NF_NAT_HELPER(NAT_HELPER_NAME);
/* FIXME: Time out? --RR */
+static struct nf_conntrack_nat_helper nat_helper_ftp =
+ NF_CT_NAT_HELPER_INIT(NAT_HELPER_NAME);
+
static int nf_nat_ftp_fmt_cmd(struct nf_conn *ct, enum nf_ct_ftp_type type,
char *buffer, size_t buflen,
union nf_inet_addr *addr, u16 port)
@@ -124,6 +129,7 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb,
static void __exit nf_nat_ftp_fini(void)
{
+ nf_nat_helper_unregister(&nat_helper_ftp);
RCU_INIT_POINTER(nf_nat_ftp_hook, NULL);
synchronize_rcu();
}
@@ -131,6 +137,7 @@ static void __exit nf_nat_ftp_fini(void)
static int __init nf_nat_ftp_init(void)
{
BUG_ON(nf_nat_ftp_hook != NULL);
+ nf_nat_helper_register(&nat_helper_ftp);
RCU_INIT_POINTER(nf_nat_ftp_hook, nf_nat_ftp);
return 0;
}
--
2.20.1
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