// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) 2007 Patrick McHardy <[email protected]> * * The code this is based on carried the following copyright notice: * --- * (C) Copyright 2001-2006 * Alex Zeffertt, Cambridge Broadband Ltd, [email protected] * Re-worked by Ben Greear <[email protected]> * --- */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/rculist.h> #include <linux/notifier.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/net_tstamp.h> #include <linux/ethtool.h> #include <linux/if_arp.h> #include <linux/if_vlan.h> #include <linux/if_link.h> #include <linux/if_macvlan.h> #include <linux/hash.h> #include <linux/workqueue.h> #include <net/rtnetlink.h> #include <net/xfrm.h> #include <linux/netpoll.h> #include <linux/phy.h> #define MACVLAN_HASH_BITS … #define MACVLAN_HASH_SIZE … #define MACVLAN_DEFAULT_BC_QUEUE_LEN … #define MACVLAN_F_PASSTHRU … #define MACVLAN_F_ADDRCHANGE … struct macvlan_port { … }; struct macvlan_source_entry { … }; struct macvlan_skb_cb { … }; #define MACVLAN_SKB_CB(__skb) … static void macvlan_port_destroy(struct net_device *dev); static void update_port_bc_queue_len(struct macvlan_port *port); static inline bool macvlan_passthru(const struct macvlan_port *port) { … } static inline void macvlan_set_passthru(struct macvlan_port *port) { … } static inline bool macvlan_addr_change(const struct macvlan_port *port) { … } static inline void macvlan_set_addr_change(struct macvlan_port *port) { … } static inline void macvlan_clear_addr_change(struct macvlan_port *port) { … } /* Hash Ethernet address */ static u32 macvlan_eth_hash(const unsigned char *addr) { … } static struct macvlan_port *macvlan_port_get_rcu(const struct net_device *dev) { … } static struct macvlan_port *macvlan_port_get_rtnl(const struct net_device *dev) { … } static struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port, const unsigned char *addr) { … } static struct macvlan_source_entry *macvlan_hash_lookup_source( const struct macvlan_dev *vlan, const unsigned char *addr) { … } static int macvlan_hash_add_source(struct macvlan_dev *vlan, const unsigned char *addr) { … } static void macvlan_hash_add(struct macvlan_dev *vlan) { … } static void macvlan_hash_del_source(struct macvlan_source_entry *entry) { … } static void macvlan_hash_del(struct macvlan_dev *vlan, bool sync) { … } static void macvlan_hash_change_addr(struct macvlan_dev *vlan, const unsigned char *addr) { … } static bool macvlan_addr_busy(const struct macvlan_port *port, const unsigned char *addr) { … } static int macvlan_broadcast_one(struct sk_buff *skb, const struct macvlan_dev *vlan, const struct ethhdr *eth, bool local) { … } static u32 macvlan_hash_mix(const struct macvlan_dev *vlan) { … } static unsigned int mc_hash(const struct macvlan_dev *vlan, const unsigned char *addr) { … } static void macvlan_broadcast(struct sk_buff *skb, const struct macvlan_port *port, struct net_device *src, enum macvlan_mode mode) { … } static void macvlan_multicast_rx(const struct macvlan_port *port, const struct macvlan_dev *src, struct sk_buff *skb) { … } static void macvlan_process_broadcast(struct work_struct *w) { … } static void macvlan_broadcast_enqueue(struct macvlan_port *port, const struct macvlan_dev *src, struct sk_buff *skb) { … } static void macvlan_flush_sources(struct macvlan_port *port, struct macvlan_dev *vlan) { … } static void macvlan_forward_source_one(struct sk_buff *skb, struct macvlan_dev *vlan) { … } static bool macvlan_forward_source(struct sk_buff *skb, struct macvlan_port *port, const unsigned char *addr) { … } /* called under rcu_read_lock() from netif_receive_skb */ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb) { … } static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) { … } static inline netdev_tx_t macvlan_netpoll_send_skb(struct macvlan_dev *vlan, struct sk_buff *skb) { … } static netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, struct net_device *dev) { … } static int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned len) { … } static const struct header_ops macvlan_hard_header_ops = …; static int macvlan_open(struct net_device *dev) { … } static int macvlan_stop(struct net_device *dev) { … } static int macvlan_sync_address(struct net_device *dev, const unsigned char *addr) { … } static int macvlan_set_mac_address(struct net_device *dev, void *p) { … } static void macvlan_change_rx_flags(struct net_device *dev, int change) { … } static void macvlan_compute_filter(unsigned long *mc_filter, struct net_device *dev, struct macvlan_dev *vlan, int cutoff) { … } static void macvlan_recompute_bc_filter(struct macvlan_dev *vlan) { … } static void macvlan_set_mac_lists(struct net_device *dev) { … } static void update_port_bc_cutoff(struct macvlan_dev *vlan, int cutoff) { … } static int macvlan_change_mtu(struct net_device *dev, int new_mtu) { … } static int macvlan_hwtstamp_get(struct net_device *dev, struct kernel_hwtstamp_config *cfg) { … } static int macvlan_hwtstamp_set(struct net_device *dev, struct kernel_hwtstamp_config *cfg, struct netlink_ext_ack *extack) { … } /* * macvlan network devices have devices nesting below it and are a special * "super class" of normal network devices; split their locks off into a * separate class since they always nest. */ static struct lock_class_key macvlan_netdev_addr_lock_key; #define ALWAYS_ON_OFFLOADS … #define ALWAYS_ON_FEATURES … #define MACVLAN_FEATURES … #define MACVLAN_STATE_MASK … static void macvlan_set_lockdep_class(struct net_device *dev) { … } static int macvlan_init(struct net_device *dev) { … } static void macvlan_uninit(struct net_device *dev) { … } static void macvlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { … } static int macvlan_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) { … } static int macvlan_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) { … } static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 flags, struct netlink_ext_ack *extack) { … } static int macvlan_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack) { … } static void macvlan_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) { … } static int macvlan_ethtool_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { … } static int macvlan_ethtool_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info) { … } static netdev_features_t macvlan_fix_features(struct net_device *dev, netdev_features_t features) { … } #ifdef CONFIG_NET_POLL_CONTROLLER static void macvlan_dev_poll_controller(struct net_device *dev) { … } static int macvlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) { … } static void macvlan_dev_netpoll_cleanup(struct net_device *dev) { … } #endif /* CONFIG_NET_POLL_CONTROLLER */ static int macvlan_dev_get_iflink(const struct net_device *dev) { … } static const struct ethtool_ops macvlan_ethtool_ops = …; static const struct net_device_ops macvlan_netdev_ops = …; static void macvlan_dev_free(struct net_device *dev) { … } void macvlan_common_setup(struct net_device *dev) { … } EXPORT_SYMBOL_GPL(…); static void macvlan_setup(struct net_device *dev) { … } static int macvlan_port_create(struct net_device *dev) { … } static void macvlan_port_destroy(struct net_device *dev) { … } static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { … } /* * reconfigure list of remote source mac address * (only for macvlan devices in source mode) * Note regarding alignment: all netlink data is aligned to 4 Byte, which * suffices for both ether_addr_copy and ether_addr_equal_64bits usage. */ static int macvlan_changelink_sources(struct macvlan_dev *vlan, u32 mode, struct nlattr *data[]) { … } int macvlan_common_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { … } EXPORT_SYMBOL_GPL(…); static int macvlan_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { … } void macvlan_dellink(struct net_device *dev, struct list_head *head) { … } EXPORT_SYMBOL_GPL(…); static int macvlan_changelink(struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { … } static size_t macvlan_get_size_mac(const struct macvlan_dev *vlan) { … } static size_t macvlan_get_size(const struct net_device *dev) { … } static int macvlan_fill_info_macaddr(struct sk_buff *skb, const struct macvlan_dev *vlan, const int i) { … } static int macvlan_fill_info(struct sk_buff *skb, const struct net_device *dev) { … } static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = …; int macvlan_link_register(struct rtnl_link_ops *ops) { /* common fields */ ops->validate = macvlan_validate; ops->maxtype = IFLA_MACVLAN_MAX; ops->policy = macvlan_policy; ops->changelink = macvlan_changelink; ops->get_size = macvlan_get_size; ops->fill_info = macvlan_fill_info; return rtnl_link_register(ops); }; EXPORT_SYMBOL_GPL(…); static struct net *macvlan_get_link_net(const struct net_device *dev) { … } static struct rtnl_link_ops macvlan_link_ops = …; static void update_port_bc_queue_len(struct macvlan_port *port) { … } static int macvlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr) { … } static struct notifier_block macvlan_notifier_block __read_mostly = …; static int __init macvlan_init_module(void) { … } static void __exit macvlan_cleanup_module(void) { … } module_init(…) …; module_exit(macvlan_cleanup_module); MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_ALIAS_RTNL_LINK(…) …;
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