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fou: Call setup_udp_tunnel_sock 

Use helper function to set up UDP tunnel related information for a fou
socket.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2016-05-18 09:06:14 -07:00 committed by David S. Miller
parent 55c2bc1432
commit 440924bbc0
1 changed files with 16 additions and 34 deletions
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50
net/ipv4/fou.c
View File

@ -448,31 +448,13 @@ static void fou_release(struct fou *fou)
kfree_rcu(fou, rcu);
}
static int fou_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)
{
udp_sk(sk)->encap_rcv = fou_udp_recv;
udp_sk(sk)->gro_receive = fou_gro_receive;
udp_sk(sk)->gro_complete = fou_gro_complete;
fou_from_sock(sk)->protocol = cfg->protocol;
return 0;
}
static int gue_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)
{
udp_sk(sk)->encap_rcv = gue_udp_recv;
udp_sk(sk)->gro_receive = gue_gro_receive;
udp_sk(sk)->gro_complete = gue_gro_complete;
return 0;
}
static int fou_create(struct net *net, struct fou_cfg *cfg,
struct socket **sockp)
{
struct socket *sock = NULL;
struct fou *fou = NULL;
struct sock *sk;
struct udp_tunnel_sock_cfg tunnel_cfg;
int err;
/* Open UDP socket */
@ -491,33 +473,33 @@ static int fou_create(struct net *net, struct fou_cfg *cfg,
fou->flags = cfg->flags;
fou->port = cfg->udp_config.local_udp_port;
fou->type = cfg->type;
fou->sock = sock;
memset(&tunnel_cfg, 0, sizeof(tunnel_cfg));
tunnel_cfg.encap_type = 1;
tunnel_cfg.sk_user_data = fou;
tunnel_cfg.encap_destroy = NULL;
/* Initial for fou type */
switch (cfg->type) {
case FOU_ENCAP_DIRECT:
err = fou_encap_init(sk, fou, cfg);
if (err)
goto error;
tunnel_cfg.encap_rcv = fou_udp_recv;
tunnel_cfg.gro_receive = fou_gro_receive;
tunnel_cfg.gro_complete = fou_gro_complete;
fou->protocol = cfg->protocol;
break;
case FOU_ENCAP_GUE:
err = gue_encap_init(sk, fou, cfg);
if (err)
goto error;
tunnel_cfg.encap_rcv = gue_udp_recv;
tunnel_cfg.gro_receive = gue_gro_receive;
tunnel_cfg.gro_complete = gue_gro_complete;
break;
default:
err = -EINVAL;
goto error;
}
fou->type = cfg->type;
udp_sk(sk)->encap_type = 1;
udp_encap_enable();
sk->sk_user_data = fou;
fou->sock = sock;
inet_inc_convert_csum(sk);
setup_udp_tunnel_sock(net, sock, &tunnel_cfg);
sk->sk_allocation = GFP_ATOMIC;