mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 15:13:55 +08:00
99f906e9ad
Support for l2 multicast flood control was added in commit b6cb5ac833
("net: bridge: add per-port multicast flood flag"). It allows broadcast
as it was introduced specifically for unknown multicast flood control.
But as broadcast is a special case of multicast, this may also need to
be disabled. For this purpose, introduce a flag to disable the flooding
of received l2 broadcasts. This approach is backwards compatible and
provides flexibility in filtering for the desired packet types.
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Mike Manning <mmanning@brocade.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
|
|
* Linux ethernet bridge
|
|
*
|
|
* Authors:
|
|
* Lennert Buytenhek <buytenh@gnu.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef _LINUX_IF_BRIDGE_H
|
|
#define _LINUX_IF_BRIDGE_H
|
|
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <uapi/linux/if_bridge.h>
|
|
#include <linux/bitops.h>
|
|
|
|
struct br_ip {
|
|
union {
|
|
__be32 ip4;
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
struct in6_addr ip6;
|
|
#endif
|
|
} u;
|
|
__be16 proto;
|
|
__u16 vid;
|
|
};
|
|
|
|
struct br_ip_list {
|
|
struct list_head list;
|
|
struct br_ip addr;
|
|
};
|
|
|
|
#define BR_HAIRPIN_MODE BIT(0)
|
|
#define BR_BPDU_GUARD BIT(1)
|
|
#define BR_ROOT_BLOCK BIT(2)
|
|
#define BR_MULTICAST_FAST_LEAVE BIT(3)
|
|
#define BR_ADMIN_COST BIT(4)
|
|
#define BR_LEARNING BIT(5)
|
|
#define BR_FLOOD BIT(6)
|
|
#define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING)
|
|
#define BR_PROMISC BIT(7)
|
|
#define BR_PROXYARP BIT(8)
|
|
#define BR_LEARNING_SYNC BIT(9)
|
|
#define BR_PROXYARP_WIFI BIT(10)
|
|
#define BR_MCAST_FLOOD BIT(11)
|
|
#define BR_MULTICAST_TO_UNICAST BIT(12)
|
|
#define BR_VLAN_TUNNEL BIT(13)
|
|
#define BR_BCAST_FLOOD BIT(14)
|
|
|
|
#define BR_DEFAULT_AGEING_TIME (300 * HZ)
|
|
|
|
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
|
|
|
|
typedef int br_should_route_hook_t(struct sk_buff *skb);
|
|
extern br_should_route_hook_t __rcu *br_should_route_hook;
|
|
|
|
#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
|
|
int br_multicast_list_adjacent(struct net_device *dev,
|
|
struct list_head *br_ip_list);
|
|
bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
|
|
bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
|
|
#else
|
|
static inline int br_multicast_list_adjacent(struct net_device *dev,
|
|
struct list_head *br_ip_list)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
|
|
int proto)
|
|
{
|
|
return false;
|
|
}
|
|
static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
|
|
int proto)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#endif
|