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xfrm: Introduce xfrm_input_afinfo to access the the callbacks properly

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IPv6 can be build as a module, so we need mechanism to access
the address family dependent callback functions properly.
Therefore we introduce xfrm_input_afinfo, similar to that
what we have for the address family dependent part of
policies and states.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert
2014-03-14 07:28:07 +01:00
parent 870a2df4ca
commit 2f32b51b60
4 changed files with 99 additions and 13 deletions
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13
net/ipv4/xfrm4_protocol.c
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@@ -179,6 +179,12 @@ static const struct net_protocol ipcomp4_protocol = {
.netns_ok = 1,
};
static struct xfrm_input_afinfo xfrm4_input_afinfo = {
.family = AF_INET,
.owner = THIS_MODULE,
.callback = xfrm4_rcv_cb,
};
static inline const struct net_protocol *netproto(unsigned char protocol)
{
switch (protocol) {
@@ -199,7 +205,6 @@ int xfrm4_protocol_register(struct xfrm4_protocol *handler,
struct xfrm4_protocol __rcu **pprev;
struct xfrm4_protocol *t;
bool add_netproto = false;
int ret = -EEXIST;
int priority = handler->priority;
@@ -273,3 +278,9 @@ int xfrm4_protocol_deregister(struct xfrm4_protocol *handler,
return ret;
}
EXPORT_SYMBOL(xfrm4_protocol_deregister);
void __init xfrm4_protocol_init(void)
{
xfrm_input_register_afinfo(&xfrm4_input_afinfo);
}
EXPORT_SYMBOL(xfrm4_protocol_init);