mirror of
https://github.com/torvalds/linux
synced 2024-09-21 19:47:35 +00:00
af30151709
Keep track of the number of VLAN devices in a vlan group. This allows to have the caller sense when the group is going to be destroyed and stop using it, which in turn allows to remove the wrapper around unregister_vlan_dev for the NETDEV_UNREGISTER notifier and avoid iterating over all possible VLAN ids whenever a device in unregistered. Also fix what looks like a use-after-free (but is actually safe since we're holding the RTNL), the real_dev reference should not be dropped while we still use it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
#ifndef __BEN_VLAN_802_1Q_INC__
|
|
#define __BEN_VLAN_802_1Q_INC__
|
|
|
|
#include <linux/if_vlan.h>
|
|
|
|
extern unsigned short vlan_name_type;
|
|
|
|
#define VLAN_GRP_HASH_SHIFT 5
|
|
#define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT)
|
|
#define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1)
|
|
|
|
/* Find a VLAN device by the MAC address of its Ethernet device, and
|
|
* it's VLAN ID. The default configuration is to have VLAN's scope
|
|
* to be box-wide, so the MAC will be ignored. The mac will only be
|
|
* looked at if we are configured to have a separate set of VLANs per
|
|
* each MAC addressable interface. Note that this latter option does
|
|
* NOT follow the spec for VLANs, but may be useful for doing very
|
|
* large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs.
|
|
*
|
|
* Must be invoked with rcu_read_lock (ie preempt disabled)
|
|
* or with RTNL.
|
|
*/
|
|
struct net_device *__find_vlan_dev(struct net_device* real_dev,
|
|
unsigned short VID); /* vlan.c */
|
|
|
|
/* found in vlan_dev.c */
|
|
int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
|
|
struct packet_type *ptype, struct net_device *orig_dev);
|
|
void vlan_dev_set_ingress_priority(const struct net_device *dev,
|
|
u32 skb_prio, short vlan_prio);
|
|
int vlan_dev_set_egress_priority(const struct net_device *dev,
|
|
u32 skb_prio, short vlan_prio);
|
|
int vlan_dev_set_vlan_flag(const struct net_device *dev,
|
|
u32 flag, short flag_val);
|
|
void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
|
|
void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result);
|
|
|
|
int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id);
|
|
void vlan_setup(struct net_device *dev);
|
|
int register_vlan_dev(struct net_device *dev);
|
|
void unregister_vlan_dev(struct net_device *dev);
|
|
|
|
int vlan_netlink_init(void);
|
|
void vlan_netlink_fini(void);
|
|
|
|
extern struct rtnl_link_ops vlan_link_ops;
|
|
|
|
#endif /* !(__BEN_VLAN_802_1Q_INC__) */
|