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xfrm: ifdef setsockopt(UDP_ENCAP_ESPINUDP/UDP_ENCAP_ESPINUDP_NON_IKE)

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If IPsec is not configured, there is no reason to delay the inevitable.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Alexey Dobriyan 2019-10-04 00:21:57 +03:00 • committed by Steffen Klassert
parent 4361f5b611
commit fd1ac07f3f
2 changed files with 2 additions and 7 deletions
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7
include/net/xfrm.h
View file

@ -1613,13 +1613,6 @@ static inline int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optv
{ {
return -ENOPROTOOPT; return -ENOPROTOOPT;
} }
static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
{
/* should not happen */
kfree_skb(skb);
return 0;
}
#endif #endif
struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif, struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif,

2
net/ipv4/udp.c
View file

@ -2520,9 +2520,11 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
case UDP_ENCAP: case UDP_ENCAP:
switch (val) { switch (val) {
case 0: case 0:
#ifdef CONFIG_XFRM
case UDP_ENCAP_ESPINUDP: case UDP_ENCAP_ESPINUDP:
case UDP_ENCAP_ESPINUDP_NON_IKE: case UDP_ENCAP_ESPINUDP_NON_IKE:
up->encap_rcv = xfrm4_udp_encap_rcv; up->encap_rcv = xfrm4_udp_encap_rcv;
#endif
/* FALLTHROUGH */ /* FALLTHROUGH */
case UDP_ENCAP_L2TPINUDP: case UDP_ENCAP_L2TPINUDP:
up->encap_type = val; up->encap_type = val;