diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 958960fdc011..0aeb973e3da7 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -3026,6 +3026,8 @@ struct vxlan_fdb_flush_desc { bool ignore_default_entry; unsigned long state; unsigned long state_mask; + unsigned long flags; + unsigned long flags_mask; }; static bool vxlan_fdb_is_default_entry(const struct vxlan_fdb *f, @@ -3041,6 +3043,9 @@ static bool vxlan_fdb_flush_matches(const struct vxlan_fdb *f, if (desc->state_mask && (f->state & desc->state_mask) != desc->state) return false; + if (desc->flags_mask && (f->flags & desc->flags_mask) != desc->flags) + return false; + if (desc->ignore_default_entry && vxlan_fdb_is_default_entry(f, vxlan)) return false; @@ -3070,6 +3075,56 @@ static void vxlan_flush(struct vxlan_dev *vxlan, } } +static const struct nla_policy vxlan_del_bulk_policy[NDA_MAX + 1] = { + [NDA_NDM_STATE_MASK] = { .type = NLA_U16 }, + [NDA_NDM_FLAGS_MASK] = { .type = NLA_U8 }, +}; + +#define VXLAN_FDB_FLUSH_IGNORED_NDM_FLAGS (NTF_MASTER | NTF_SELF) +#define VXLAN_FDB_FLUSH_ALLOWED_NDM_STATES (NUD_PERMANENT | NUD_NOARP) +#define VXLAN_FDB_FLUSH_ALLOWED_NDM_FLAGS (NTF_EXT_LEARNED | NTF_OFFLOADED | \ + NTF_ROUTER) + +static int vxlan_fdb_delete_bulk(struct nlmsghdr *nlh, struct net_device *dev, + struct netlink_ext_ack *extack) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + struct vxlan_fdb_flush_desc desc = {}; + struct ndmsg *ndm = nlmsg_data(nlh); + struct nlattr *tb[NDA_MAX + 1]; + u8 ndm_flags; + int err; + + ndm_flags = ndm->ndm_flags & ~VXLAN_FDB_FLUSH_IGNORED_NDM_FLAGS; + + err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, vxlan_del_bulk_policy, + extack); + if (err) + return err; + + if (ndm_flags & ~VXLAN_FDB_FLUSH_ALLOWED_NDM_FLAGS) { + NL_SET_ERR_MSG(extack, "Unsupported fdb flush ndm flag bits set"); + return -EINVAL; + } + if (ndm->ndm_state & ~VXLAN_FDB_FLUSH_ALLOWED_NDM_STATES) { + NL_SET_ERR_MSG(extack, "Unsupported fdb flush ndm state bits set"); + return -EINVAL; + } + + desc.state = ndm->ndm_state; + desc.flags = ndm_flags; + + if (tb[NDA_NDM_STATE_MASK]) + desc.state_mask = nla_get_u16(tb[NDA_NDM_STATE_MASK]); + + if (tb[NDA_NDM_FLAGS_MASK]) + desc.flags_mask = nla_get_u8(tb[NDA_NDM_FLAGS_MASK]); + + vxlan_flush(vxlan, &desc); + + return 0; +} + /* Cleanup timer and forwarding table on shutdown */ static int vxlan_stop(struct net_device *dev) { @@ -3172,6 +3227,7 @@ static const struct net_device_ops vxlan_netdev_ether_ops = { .ndo_set_mac_address = eth_mac_addr, .ndo_fdb_add = vxlan_fdb_add, .ndo_fdb_del = vxlan_fdb_delete, + .ndo_fdb_del_bulk = vxlan_fdb_delete_bulk, .ndo_fdb_dump = vxlan_fdb_dump, .ndo_fdb_get = vxlan_fdb_get, .ndo_mdb_add = vxlan_mdb_add,