diff options
Diffstat (limited to 'net/switchdev')
| -rw-r--r-- | net/switchdev/switchdev.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c index 0409f9b5bdbc..d4c8cf828240 100644 --- a/net/switchdev/switchdev.c +++ b/net/switchdev/switchdev.c @@ -296,6 +296,36 @@ int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj) } EXPORT_SYMBOL_GPL(switchdev_port_obj_del); +/** + * switchdev_port_obj_dump - Dump port objects + * + * @dev: port device + * @obj: object to dump + */ +int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj) +{ + const struct switchdev_ops *ops = dev->switchdev_ops; + struct net_device *lower_dev; + struct list_head *iter; + int err = -EOPNOTSUPP; + + if (ops && ops->switchdev_port_obj_dump) + return ops->switchdev_port_obj_dump(dev, obj); + + /* Switch device port(s) may be stacked under + * bond/team/vlan dev, so recurse down to dump objects on + * first port at bottom of stack. + */ + + netdev_for_each_lower_dev(dev, lower_dev, iter) { + err = switchdev_port_obj_dump(lower_dev, obj); + break; + } + + return err; +} +EXPORT_SYMBOL_GPL(switchdev_port_obj_dump); + static DEFINE_MUTEX(switchdev_mutex); static RAW_NOTIFIER_HEAD(switchdev_notif_chain); @@ -566,6 +596,151 @@ int switchdev_port_bridge_dellink(struct net_device *dev, } EXPORT_SYMBOL_GPL(switchdev_port_bridge_dellink); +/** + * switchdev_port_fdb_add - Add FDB (MAC/VLAN) entry to port + * + * @ndmsg: netlink hdr + * @nlattr: netlink attributes + * @dev: port device + * @addr: MAC address to add + * @vid: VLAN to add + * + * Add FDB entry to switch device. + */ +int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, const unsigned char *addr, + u16 vid, u16 nlm_flags) +{ + struct switchdev_obj obj = { + .id = SWITCHDEV_OBJ_PORT_FDB, + .u.fdb = { + .addr = addr, + .vid = vid, + }, + }; + + return switchdev_port_obj_add(dev, &obj); +} +EXPORT_SYMBOL_GPL(switchdev_port_fdb_add); + +/** + * switchdev_port_fdb_del - Delete FDB (MAC/VLAN) entry from port + * + * @ndmsg: netlink hdr + * @nlattr: netlink attributes + * @dev: port device + * @addr: MAC address to delete + * @vid: VLAN to delete + * + * Delete FDB entry from switch device. + */ +int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, const unsigned char *addr, + u16 vid) +{ + struct switchdev_obj obj = { + .id = SWITCHDEV_OBJ_PORT_FDB, + .u.fdb = { + .addr = addr, + .vid = vid, + }, + }; + + return switchdev_port_obj_del(dev, &obj); +} +EXPORT_SYMBOL_GPL(switchdev_port_fdb_del); + +struct switchdev_fdb_dump { + struct switchdev_obj obj; + struct sk_buff *skb; + struct netlink_callback *cb; + struct net_device *filter_dev; + int idx; +}; + +static int switchdev_port_fdb_dump_cb(struct net_device *dev, + struct switchdev_obj *obj) +{ + struct switchdev_fdb_dump *dump = + container_of(obj, struct switchdev_fdb_dump, obj); + u32 portid = NETLINK_CB(dump->cb->skb).portid; + u32 seq = dump->cb->nlh->nlmsg_seq; + struct nlmsghdr *nlh; + struct ndmsg *ndm; + struct net_device *master = netdev_master_upper_dev_get(dev); + + if (dump->idx < dump->cb->args[0]) + goto skip; + + if (master && dump->filter_dev != master) + goto skip; + + nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, + sizeof(*ndm), NLM_F_MULTI); + if (!nlh) + return -EMSGSIZE; + + ndm = nlmsg_data(nlh); + ndm->ndm_family = AF_BRIDGE; + ndm->ndm_pad1 = 0; + ndm->ndm_pad2 = 0; + ndm->ndm_flags = NTF_SELF; + ndm->ndm_type = 0; + ndm->ndm_ifindex = dev->ifindex; + ndm->ndm_state = NUD_REACHABLE; + + if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, obj->u.fdb.addr)) + goto nla_put_failure; + + if (obj->u.fdb.vid && nla_put_u16(dump->skb, NDA_VLAN, obj->u.fdb.vid)) + goto nla_put_failure; + + nlmsg_end(dump->skb, nlh); + +skip: + dump->idx++; + return 0; + +nla_put_failure: + nlmsg_cancel(dump->skb, nlh); + return -EMSGSIZE; +} + +/** + * switchdev_port_fdb_dump - Dump port FDB (MAC/VLAN) entries + * + * @skb: netlink skb + * @cb: netlink callback + * @dev: port device + * @filter_dev: filter device + * @idx: + * + * Delete FDB entry from switch device. + */ +int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, + struct net_device *dev, + struct net_device *filter_dev, int idx) +{ + struct switchdev_fdb_dump dump = { + .obj = { + .id = SWITCHDEV_OBJ_PORT_FDB, + .cb = switchdev_port_fdb_dump_cb, + }, + .skb = skb, + .cb = cb, + .filter_dev = filter_dev, + .idx = idx, + }; + int err; + + err = switchdev_port_obj_dump(dev, &dump.obj); + if (err) + return err; + + return dump.idx; +} +EXPORT_SYMBOL_GPL(switchdev_port_fdb_dump); + static struct net_device *switchdev_get_lowest_dev(struct net_device *dev) { const struct switchdev_ops *ops = dev->switchdev_ops; |