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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

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Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2019-11-13

1) Remove a unnecessary net_exit function from the xfrm interface.
   From Xin Long.

2) Assign xfrm4_udp_encap_rcv to a UDP socket only if xfrm
   is configured. From Alexey Dobriyan.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-11-13 11:28:54 -08:00
parent 90bc72b13c fd1ac07f3f
commit 895badff2c
3 changed files with 2 additions and 30 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;
}
static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
{
/* should not happen */
kfree_skb(skb);
return 0;
}
#endif
struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif,

2
net/ipv4/udp.c
View file

@ -2534,9 +2534,11 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
case UDP_ENCAP:
switch (val) {
case 0:
#ifdef CONFIG_XFRM
case UDP_ENCAP_ESPINUDP:
case UDP_ENCAP_ESPINUDP_NON_IKE:
up->encap_rcv = xfrm4_udp_encap_rcv;
#endif
/* FALLTHROUGH */
case UDP_ENCAP_L2TPINUDP:
up->encap_type = val;

23
net/xfrm/xfrm_interface.c
View file

@ -732,30 +732,7 @@ static struct rtnl_link_ops xfrmi_link_ops __read_mostly = {
.get_link_net = xfrmi_get_link_net,
};
static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn)
{
struct xfrm_if *xi;
LIST_HEAD(list);
xi = rtnl_dereference(xfrmn->xfrmi[0]);
if (!xi)
return;
unregister_netdevice_queue(xi->dev, &list);
unregister_netdevice_many(&list);
}
static void __net_exit xfrmi_exit_net(struct net *net)
{
struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
rtnl_lock();
xfrmi_destroy_interfaces(xfrmn);
rtnl_unlock();
}
static struct pernet_operations xfrmi_net_ops = {
.exit = xfrmi_exit_net,
.id = &xfrmi_net_id,
.size = sizeof(struct xfrmi_net),
};