1 files changed, 2 insertions, 77 deletions

diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 9258e751baba..87d4db591488 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm4_state.c
  *
@@ -7,93 +8,17 @@
  *
  */
 
-#include <net/ip.h>
 #include <net/xfrm.h>
-#include <linux/pfkeyv2.h>
-#include <linux/ipsec.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/export.h>
-
-static int xfrm4_init_flags(struct xfrm_state *x)
-{
-	if (ipv4_config.no_pmtu_disc)
-		x->props.flags |= XFRM_STATE_NOPMTUDISC;
-	return 0;
-}
-
-static void
-__xfrm4_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
-{
-	const struct flowi4 *fl4 = &fl->u.ip4;
-
-	sel->daddr.a4 = fl4->daddr;
-	sel->saddr.a4 = fl4->saddr;
-	sel->dport = xfrm_flowi_dport(fl, &fl4->uli);
-	sel->dport_mask = htons(0xffff);
-	sel->sport = xfrm_flowi_sport(fl, &fl4->uli);
-	sel->sport_mask = htons(0xffff);
-	sel->family = AF_INET;
-	sel->prefixlen_d = 32;
-	sel->prefixlen_s = 32;
-	sel->proto = fl4->flowi4_proto;
-	sel->ifindex = fl4->flowi4_oif;
-}
-
-static void
-xfrm4_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl,
-		   const xfrm_address_t *daddr, const xfrm_address_t *saddr)
-{
-	x->id = tmpl->id;
-	if (x->id.daddr.a4 == 0)
-		x->id.daddr.a4 = daddr->a4;
-	x->props.saddr = tmpl->saddr;
-	if (x->props.saddr.a4 == 0)
-		x->props.saddr.a4 = saddr->a4;
-	x->props.mode = tmpl->mode;
-	x->props.reqid = tmpl->reqid;
-	x->props.family = AF_INET;
-}
-
-int xfrm4_extract_header(struct sk_buff *skb)
-{
-	const struct iphdr *iph = ip_hdr(skb);
-
-	XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
-	XFRM_MODE_SKB_CB(skb)->id = iph->id;
-	XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
-	XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
-	XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
-	XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph);
-	memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
-	       sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
-
-	return 0;
-}
 
 static struct xfrm_state_afinfo xfrm4_state_afinfo = {
 	.family			= AF_INET,
 	.proto			= IPPROTO_IPIP,
-	.eth_proto		= htons(ETH_P_IP),
-	.owner			= THIS_MODULE,
-	.init_flags		= xfrm4_init_flags,
-	.init_tempsel		= __xfrm4_init_tempsel,
-	.init_temprop		= xfrm4_init_temprop,
 	.output			= xfrm4_output,
-	.output_finish		= xfrm4_output_finish,
-	.extract_input		= xfrm4_extract_input,
-	.extract_output		= xfrm4_extract_output,
 	.transport_finish	= xfrm4_transport_finish,
+	.local_error		= xfrm4_local_error,
 };
 
 void __init xfrm4_state_init(void)
 {
 	xfrm_state_register_afinfo(&xfrm4_state_afinfo);
 }
-
-#if 0
-void __exit xfrm4_state_fini(void)
-{
-	xfrm_state_unregister_afinfo(&xfrm4_state_afinfo);
-}
-#endif  /*  0  */
-