27 static void nat_keepalive_init(struct nat_keepalive *ka, struct xfrm_state *x)  in nat_keepalive_init()  argument
29 	ka->net = xs_net(x);  in nat_keepalive_init()
30 	ka->family = x->props.family;  in nat_keepalive_init()
31 	ka->saddr = x->props.saddr;  in nat_keepalive_init()
32 	ka->daddr = x->id.daddr;  in nat_keepalive_init()
33 	ka->encap_sport = x->encap->encap_sport;  in nat_keepalive_init()
34 	ka->encap_dport = x->encap->encap_dport;  in nat_keepalive_init()
35 	ka->smark = xfrm_smark_get(0, x);  in nat_keepalive_init()
39 				   struct nat_keepalive *ka)  in nat_keepalive_send_ipv4()  argument
41 	struct net *net = ka->net;  in nat_keepalive_send_ipv4()
50 			   ka->daddr.a4, ka->saddr.a4, ka->encap_dport,  in nat_keepalive_send_ipv4()
51 			   ka->encap_sport, sock_net_uid(net, NULL));  in nat_keepalive_send_ipv4()
68 				   struct nat_keepalive *ka,  in nat_keepalive_send_ipv6()  argument
71 	struct net *net = ka->net;  in nat_keepalive_send_ipv6()
79 	uh->check = csum_ipv6_magic(&ka->saddr.in6, &ka->daddr.in6,  in nat_keepalive_send_ipv6()
86 	fl6.saddr = ka->saddr.in6;  in nat_keepalive_send_ipv6()
87 	fl6.daddr = ka->daddr.in6;  in nat_keepalive_send_ipv6()
89 	fl6.fl6_sport = ka->encap_sport;  in nat_keepalive_send_ipv6()
90 	fl6.fl6_dport = ka->encap_dport;  in nat_keepalive_send_ipv6()
105 static void nat_keepalive_send(struct nat_keepalive *ka)  in nat_keepalive_send()  argument
124 	uh->source = ka->encap_sport;  in nat_keepalive_send()
125 	uh->dest = ka->encap_dport;  in nat_keepalive_send()
129 	skb->mark = ka->smark;  in nat_keepalive_send()
131 	switch (ka->family) {  in nat_keepalive_send()
133 		err = nat_keepalive_send_ipv4(skb, ka);  in nat_keepalive_send()
137 		err = nat_keepalive_send_ipv6(skb, ka, uh);  in nat_keepalive_send()
154 	struct nat_keepalive ka;  in nat_keepalive_work_single()  local
173 		nat_keepalive_init(&ka, x);  in nat_keepalive_work_single()
180 		nat_keepalive_send(&ka);  in nat_keepalive_work_single()