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netfilter: Pass net into okfn

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This is immediately motivated by the bridge code that chains functions that
call into netfilter.  Without passing net into the okfns the bridge code would
need to guess about the best expression for the network namespace to process
packets in.

As net is frequently one of the first things computed in continuation functions
after netfilter has done it's job passing in the desired network namespace is in
many cases a code simplification.

To support this change the function dst_output_okfn is introduced to
simplify passing dst_output as an okfn.  For the moment dst_output_okfn
just silently drops the struct net.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2015-09-15 20:04:18 -05:00
committed by David S. Miller
parent 9dff2c966a
commit 0c4b51f005
37 changed files with 95 additions and 94 deletions
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8
net/decnet/dn_neigh.c
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@@ -194,7 +194,7 @@ static int dn_neigh_output(struct neighbour *neigh, struct sk_buff *skb)
return err;
}
static int dn_neigh_output_packet(struct sock *sk, struct sk_buff *skb)
static int dn_neigh_output_packet(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
@@ -334,7 +334,7 @@ static int dn_phase3_output(struct neighbour *neigh, struct sock *sk,
dn_neigh_output_packet);
}
int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb)
int dn_to_neigh_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *) dst;
@@ -378,7 +378,7 @@ void dn_neigh_pointopoint_hello(struct sk_buff *skb)
/*
* Ethernet router hello message received
*/
int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb)
int dn_neigh_router_hello(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct rtnode_hello_message *msg = (struct rtnode_hello_message *)skb->data;
@@ -440,7 +440,7 @@ int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb)
/*
* Endnode hello message received
*/
int dn_neigh_endnode_hello(struct sock *sk, struct sk_buff *skb)
int dn_neigh_endnode_hello(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct endnode_hello_message *msg = (struct endnode_hello_message *)skb->data;
struct neighbour *neigh;