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net: bridge: fdb: add ndo_fdb_del_bulk

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Add a minimal ndo_fdb_del_bulk implementation which flushes all entries.
Support for more fine-grained filtering will be added in the following
patches.

Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2022-04-13 13:51:58 +03:00 committed by David S. Miller
parent 9e83425993
commit edaef19172
3 changed files with 27 additions and 0 deletions
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1
net/bridge/br_device.c
View File

@ -465,6 +465,7 @@ static const struct net_device_ops br_netdev_ops = {
.ndo_fix_features = br_fix_features,
.ndo_fdb_add = br_fdb_add,
.ndo_fdb_del = br_fdb_delete,
.ndo_fdb_del_bulk = br_fdb_delete_bulk,
.ndo_fdb_dump = br_fdb_dump,
.ndo_fdb_get = br_fdb_get,
.ndo_bridge_getlink = br_getlink,

23
net/bridge/br_fdb.c
View File

@ -572,6 +572,29 @@ void br_fdb_flush(struct net_bridge *br)
spin_unlock_bh(&br->hash_lock);
}
int br_fdb_delete_bulk(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, u16 vid,
struct netlink_ext_ack *extack)
{
struct net_bridge_port *p = NULL;
struct net_bridge *br;
if (netif_is_bridge_master(dev)) {
br = netdev_priv(dev);
} else {
p = br_port_get_rtnl(dev);
if (!p) {
NL_SET_ERR_MSG_MOD(extack, "Device is not a bridge port");
return -EINVAL;
}
br = p->br;
}
br_fdb_flush(br);
return 0;
}
/* Flush all entries referring to a specific port.
* if do_all is set also flush static entries
* if vid is set delete all entries that match the vlan_id

3
net/bridge/br_private.h
View File

@ -781,6 +781,9 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, const unsigned char *addr, u16 vid);
int br_fdb_delete_bulk(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, u16 vid,
struct netlink_ext_ack *extack);
int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
const unsigned char *addr, u16 vid, u16 nlh_flags,
struct netlink_ext_ack *extack);