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geneve: Add geneve_get_rx_port support

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This patch adds an op that the drivers can call into to get existing
geneve ports.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Singhai, Anjali 2015-12-14 12:21:20 -08:00 committed by David S. Miller
parent c110c311b1
commit 05ca4029b2
2 changed files with 32 additions and 0 deletions
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24
drivers/net/geneve.c
View file

@ -1109,6 +1109,30 @@ static struct device_type geneve_type = {
.name = "geneve",
};
/* Calls the ndo_add_geneve_port of the caller in order to
* supply the listening GENEVE udp ports. Callers are expected
* to implement the ndo_add_geneve_port.
*/
void geneve_get_rx_port(struct net_device *dev)
{
struct net *net = dev_net(dev);
struct geneve_net *gn = net_generic(net, geneve_net_id);
struct geneve_sock *gs;
sa_family_t sa_family;
struct sock *sk;
__be16 port;
rcu_read_lock();
list_for_each_entry_rcu(gs, &gn->sock_list, list) {
sk = gs->sock->sk;
sa_family = sk->sk_family;
port = inet_sk(sk)->inet_sport;
dev->netdev_ops->ndo_add_geneve_port(dev, sa_family, port);
}
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(geneve_get_rx_port);
/* Initialize the device structure. */
static void geneve_setup(struct net_device *dev)
{

8
include/net/geneve.h
View file

@ -62,6 +62,14 @@ struct genevehdr {
struct geneve_opt options[];
};
#if IS_ENABLED(CONFIG_GENEVE)
void geneve_get_rx_port(struct net_device *netdev);
#else
static inline void geneve_get_rx_port(struct net_device *netdev)
{
}
#endif
#ifdef CONFIG_INET
struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
u8 name_assign_type, u16 dst_port);