a14462f1bd
Now there's null check here and also again in the hook. Looking at bridge bits which are simmilar, port structure is rcu_dereferenced right away in handle_bridge and passed to hook. Looks nicer. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
#ifndef _LINUX_IF_MACVLAN_H
|
|
#define _LINUX_IF_MACVLAN_H
|
|
|
|
#include <linux/if_link.h>
|
|
#include <linux/list.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/netlink.h>
|
|
#include <net/netlink.h>
|
|
|
|
#if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE)
|
|
struct socket *macvtap_get_socket(struct file *);
|
|
#else
|
|
#include <linux/err.h>
|
|
#include <linux/errno.h>
|
|
struct file;
|
|
struct socket;
|
|
static inline struct socket *macvtap_get_socket(struct file *f)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
#endif /* CONFIG_MACVTAP */
|
|
|
|
struct macvlan_port;
|
|
struct macvtap_queue;
|
|
|
|
/**
|
|
* struct macvlan_rx_stats - MACVLAN percpu rx stats
|
|
* @rx_packets: number of received packets
|
|
* @rx_bytes: number of received bytes
|
|
* @multicast: number of received multicast packets
|
|
* @rx_errors: number of errors
|
|
*/
|
|
struct macvlan_rx_stats {
|
|
unsigned long rx_packets;
|
|
unsigned long rx_bytes;
|
|
unsigned long multicast;
|
|
unsigned long rx_errors;
|
|
};
|
|
|
|
struct macvlan_dev {
|
|
struct net_device *dev;
|
|
struct list_head list;
|
|
struct hlist_node hlist;
|
|
struct macvlan_port *port;
|
|
struct net_device *lowerdev;
|
|
struct macvlan_rx_stats __percpu *rx_stats;
|
|
enum macvlan_mode mode;
|
|
int (*receive)(struct sk_buff *skb);
|
|
int (*forward)(struct net_device *dev, struct sk_buff *skb);
|
|
struct macvtap_queue *tap;
|
|
};
|
|
|
|
static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
|
|
unsigned int len, bool success,
|
|
bool multicast)
|
|
{
|
|
struct macvlan_rx_stats *rx_stats;
|
|
|
|
rx_stats = per_cpu_ptr(vlan->rx_stats, smp_processor_id());
|
|
if (likely(success)) {
|
|
rx_stats->rx_packets++;;
|
|
rx_stats->rx_bytes += len;
|
|
if (multicast)
|
|
rx_stats->multicast++;
|
|
} else {
|
|
rx_stats->rx_errors++;
|
|
}
|
|
}
|
|
|
|
extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
|
|
struct nlattr *tb[], struct nlattr *data[],
|
|
int (*receive)(struct sk_buff *skb),
|
|
int (*forward)(struct net_device *dev,
|
|
struct sk_buff *skb));
|
|
|
|
extern void macvlan_count_rx(const struct macvlan_dev *vlan,
|
|
unsigned int len, bool success,
|
|
bool multicast);
|
|
|
|
extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
|
|
|
|
extern int macvlan_link_register(struct rtnl_link_ops *ops);
|
|
|
|
extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
|
|
struct net_device *dev);
|
|
|
|
|
|
extern struct sk_buff *(*macvlan_handle_frame_hook)(struct macvlan_port *,
|
|
struct sk_buff *);
|
|
|
|
#endif /* _LINUX_IF_MACVLAN_H */
|