1 --- a/nat46/modules/nat46-core.c
2 +++ b/nat46/modules/nat46-core.c
7 +#include <linux/version.h>
9 #include "nat46-glue.h"
10 #include "nat46-core.h"
11 @@ -1598,7 +1599,11 @@ void nat46_ipv6_input(struct sk_buff *ol
12 /* Remove any debris in the socket control block */
13 memset(IPCB(new_skb), 0, sizeof(struct inet_skb_parm));
14 /* Remove netfilter references to IPv6 packet, new netfilter references will be created based on IPv4 packet */
15 +#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)
18 + nf_reset_ct(new_skb);
21 /* modify packet: actual IPv6->IPv4 transformation */
22 truncSize = v6packet_l3size - sizeof(struct iphdr); /* chop first 20 bytes */
23 @@ -1803,7 +1808,11 @@ void nat46_ipv4_input(struct sk_buff *ol
24 /* Remove any debris in the socket control block */
25 memset(IPCB(new_skb), 0, sizeof(struct inet_skb_parm));
26 /* Remove netfilter references to IPv4 packet, new netfilter references will be created based on IPv6 packet */
27 +#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)
30 + nf_reset_ct(new_skb);
33 /* expand header (add 20 extra bytes at the beginning of sk_buff) */
34 pskb_expand_head(new_skb, IPV6V4HDRDELTA + (add_frag_header?8:0), 0, GFP_ATOMIC);