--- zzzz-none-000/linux-2.6.32.61/net/bridge/br_private.h 2013-06-10 09:43:48.000000000 +0000 +++ virian-300e-630/linux-2.6.32.61/net/bridge/br_private.h 2015-02-20 09:04:21.000000000 +0000 @@ -13,9 +13,14 @@ #ifndef _BR_PRIVATE_H #define _BR_PRIVATE_H +#include #include #include +#include #include +#include + +#define AVM_MDB_ENABLE #define BR_HASH_BITS 8 #define BR_HASH_SIZE (1 << BR_HASH_BITS) @@ -24,9 +29,15 @@ #define BR_PORT_BITS 10 #define BR_MAX_PORTS (1<priv_flags & IFF_BRIDGE_PORT) + +static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) +{ + return rcu_dereference(dev->rx_handler_data); +} + +static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) +{ + return br_port_exists(dev) ? + rtnl_dereference(dev->rx_handler_data) : NULL; +} + struct net_bridge { spinlock_t lock; struct list_head port_list; struct net_device *dev; + spinlock_t hash_lock; struct hlist_head hash[BR_HASH_SIZE]; - struct list_head age_list; - unsigned long feature_mask; + unsigned long feature_mask; #ifdef CONFIG_BRIDGE_NETFILTER struct rtable fake_rtable; + bool nf_call_iptables; + bool nf_call_ip6tables; + bool nf_call_arptables; #endif - unsigned long flags; -#define BR_SET_MAC_ADDR 0x00000001 + u16 group_fwd_mask; /* STP */ bridge_id designated_root; @@ -126,15 +278,85 @@ unsigned char topology_change; unsigned char topology_change_detected; +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING + unsigned char multicast_router; + + u8 multicast_disabled:1; + u8 multicast_querier:1; + u8 multicast_query_use_ifaddr:1; + + u32 hash_elasticity; + u32 hash_max; + + u32 multicast_last_member_count; + u32 multicast_startup_query_count; + + unsigned long multicast_last_member_interval; + unsigned long multicast_membership_interval; + unsigned long multicast_querier_interval; + unsigned long multicast_query_interval; + unsigned long multicast_query_response_interval; + unsigned long multicast_startup_query_interval; + + spinlock_t multicast_lock; + struct net_bridge_mdb_htable __rcu *mdb; + struct hlist_head router_list; + + struct timer_list multicast_router_timer; + struct bridge_mcast_querier ip4_querier; + struct bridge_mcast_query ip4_query; +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + struct bridge_mcast_querier ip6_querier; + struct bridge_mcast_query ip6_query; +#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ +#endif + struct timer_list hello_timer; struct timer_list tcn_timer; struct timer_list topology_change_timer; struct timer_list gc_timer; struct kobject *ifobj; +#ifdef CONFIG_BRIDGE_VLAN_FILTERING + u8 vlan_enabled; + struct net_port_vlans __rcu *vlan_info; +#endif }; +struct br_input_skb_cb { + struct net_device *brdev; +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING + int igmp; + int mrouters_only; +#endif +#ifdef CONFIG_AVM_BRIDGE_MULTICAST_TO_UNICAST + struct net_bridge_port_group *pg; +#endif +}; + +#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) + +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING +# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) +#else +# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) +#endif + +#define br_printk(level, br, format, args...) \ + printk(level "%s: " format, (br)->dev->name, ##args) + +#define br_err(__br, format, args...) \ + br_printk(KERN_ERR, __br, format, ##args) +#define br_warn(__br, format, args...) \ + br_printk(KERN_WARNING, __br, format, ##args) +#define br_notice(__br, format, args...) \ + br_printk(KERN_NOTICE, __br, format, ##args) +#define br_info(__br, format, args...) \ + br_printk(KERN_INFO, __br, format, ##args) + +#define br_debug(br, format, args...) \ + pr_debug("%s: " format, (br)->dev->name, ##args) + extern struct notifier_block br_device_notifier; -extern const u8 br_group_address[ETH_ALEN]; /* called under bridge lock */ static inline int br_is_root_bridge(const struct net_bridge *br) @@ -143,105 +365,442 @@ } /* br_device.c */ -extern void br_dev_setup(struct net_device *dev); -extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, - struct net_device *dev); +void br_dev_setup(struct net_device *dev); +void br_dev_delete(struct net_device *dev, struct list_head *list); +netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); +#ifdef CONFIG_NET_POLL_CONTROLLER +static inline void br_netpoll_send_skb(const struct net_bridge_port *p, + struct sk_buff *skb) +{ + struct netpoll *np = p->np; + + if (np) + netpoll_send_skb(np, skb); +} + +int br_netpoll_enable(struct net_bridge_port *p); +void br_netpoll_disable(struct net_bridge_port *p); +#else +static inline void br_netpoll_send_skb(const struct net_bridge_port *p, + struct sk_buff *skb) +{ +} + +static inline int br_netpoll_enable(struct net_bridge_port *p) +{ + return 0; +} + +static inline void br_netpoll_disable(struct net_bridge_port *p) +{ +} +#endif /* br_fdb.c */ -extern int br_fdb_init(void); -extern void br_fdb_fini(void); -extern void br_fdb_flush(struct net_bridge *br); -extern void br_fdb_changeaddr(struct net_bridge_port *p, - const unsigned char *newaddr); -extern void br_fdb_cleanup(unsigned long arg); -extern void br_fdb_delete_by_port(struct net_bridge *br, - const struct net_bridge_port *p, int do_all); -extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, - const unsigned char *addr); -extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); -extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, - unsigned long count, unsigned long off); -extern int br_fdb_insert(struct net_bridge *br, - struct net_bridge_port *source, - const unsigned char *addr); -extern void br_fdb_update(struct net_bridge *br, - struct net_bridge_port *source, - const unsigned char *addr); +int br_fdb_init(void); +void br_fdb_fini(void); +void br_fdb_flush(struct net_bridge *br); +void br_fdb_find_delete_local(struct net_bridge *br, + const struct net_bridge_port *p, + const unsigned char *addr, u16 vid); +void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); +void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); +void br_fdb_cleanup(unsigned long arg); +void br_fdb_delete_by_port(struct net_bridge *br, + const struct net_bridge_port *p, int do_all); +struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, + const unsigned char *addr, __u16 vid); +int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); +int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, + unsigned long off); +int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, + const unsigned char *addr, u16 vid); +void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, + const unsigned char *addr, u16 vid, bool added_by_user); + +extern int br_fdb_delete(struct ndmsg *ndm, + struct net_device *dev, + unsigned char *addr); +extern int br_fdb_add(struct ndmsg *nlh, + struct net_device *dev, + unsigned char *addr, + u16 nlh_flags); +extern int br_fdb_dump(struct sk_buff *skb, + struct netlink_callback *cb, + struct net_device *dev, + int idx); /* br_forward.c */ -extern void br_deliver(const struct net_bridge_port *to, - struct sk_buff *skb); -extern int br_dev_queue_push_xmit(struct sk_buff *skb); -extern void br_forward(const struct net_bridge_port *to, - struct sk_buff *skb); -extern int br_forward_finish(struct sk_buff *skb); -extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); -extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb); +void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); +int br_dev_queue_push_xmit(struct sk_buff *skb); +void br_forward(const struct net_bridge_port *to, + struct sk_buff *skb, struct sk_buff *skb0); +int br_forward_finish(struct sk_buff *skb); +void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); +void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb2, bool unicast); /* br_if.c */ -extern void br_port_carrier_check(struct net_bridge_port *p); -extern int br_add_bridge(struct net *net, const char *name); -extern int br_del_bridge(struct net *net, const char *name); -extern void br_net_exit(struct net *net); -extern int br_add_if(struct net_bridge *br, - struct net_device *dev); -extern int br_del_if(struct net_bridge *br, - struct net_device *dev); -extern int br_min_mtu(const struct net_bridge *br); -extern void br_features_recompute(struct net_bridge *br); +void br_port_carrier_check(struct net_bridge_port *p); +int br_add_bridge(struct net *net, const char *name); +int br_del_bridge(struct net *net, const char *name); +int br_add_if(struct net_bridge *br, struct net_device *dev); +int br_del_if(struct net_bridge *br, struct net_device *dev); +int br_min_mtu(const struct net_bridge *br); +void br_features_recompute(struct net_bridge *br); /* br_input.c */ -extern int br_handle_frame_finish(struct sk_buff *skb); -extern struct sk_buff *br_handle_frame(struct net_bridge_port *p, - struct sk_buff *skb); +int br_handle_frame_finish(struct sk_buff *skb); +struct sk_buff *br_handle_frame(struct sk_buff *pskb); + +static inline bool br_rx_handler_check_rcu(const struct net_device *dev) +{ + return rcu_dereference(dev->rx_handler) == br_handle_frame; +} + +static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) +{ + return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; +} /* br_ioctl.c */ -extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); +int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, + void __user *arg); + +/* br_multicast.c */ +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING +extern unsigned int br_mdb_rehash_seq; +int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, + struct sk_buff *skb, u16 vid); +struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, + struct sk_buff *skb, u16 vid); +void br_multicast_add_port(struct net_bridge_port *port); +void br_multicast_del_port(struct net_bridge_port *port); +void br_multicast_enable_port(struct net_bridge_port *port); +void br_multicast_disable_port(struct net_bridge_port *port); +void br_multicast_init(struct net_bridge *br); +void br_multicast_open(struct net_bridge *br); +void br_multicast_stop(struct net_bridge *br); +void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, + struct sk_buff *skb); +void br_multicast_forward(struct net_bridge_mdb_entry *mdst, + struct sk_buff *skb, struct sk_buff *skb2); +int br_multicast_set_router(struct net_bridge *br, unsigned long val); +int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); +int br_multicast_toggle(struct net_bridge *br, unsigned long val); +int br_multicast_set_querier(struct net_bridge *br, unsigned long val); +int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); +struct net_bridge_mdb_entry * +br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); +struct net_bridge_mdb_entry * +br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, + struct br_ip *group); +void br_multicast_delete_pg(struct net_bridge_port_group *pg); +void br_multicast_delete_recipient(struct net_bridge_group_recipient *p); +struct net_bridge_port_group * +br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, + struct net_bridge_port_group __rcu *next, + unsigned char state); +#ifdef AVM_MDB_ENABLE +void br_mdb_init(void); +void br_mdb_uninit(void); +void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, + struct br_ip *group, int type); +#endif +#define mlock_dereference(X, br) \ + rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) + +static inline bool br_multicast_is_router(struct net_bridge *br) +{ + return br->multicast_router == 2 || + (br->multicast_router == 1 && + timer_pending(&br->multicast_router_timer)); +} + +static inline bool +__br_multicast_querier_exists(struct net_bridge *br, + struct bridge_mcast_querier *querier) +{ + return time_is_before_jiffies(querier->delay_time) && + (br->multicast_querier || timer_pending(&querier->timer)); +} + +static inline bool br_multicast_querier_exists(struct net_bridge *br, + struct ethhdr *eth) +{ + switch (eth->h_proto) { + case (htons(ETH_P_IP)): + return __br_multicast_querier_exists(br, &br->ip4_querier); +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + case (htons(ETH_P_IPV6)): + return __br_multicast_querier_exists(br, &br->ip6_querier); +#endif + default: + return false; + } +} +#else +static inline int br_multicast_rcv(struct net_bridge *br, + struct net_bridge_port *port, + struct sk_buff *skb, + u16 vid) +{ + return 0; +} + +static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, + struct sk_buff *skb, u16 vid) +{ + return NULL; +} + +static inline void br_multicast_add_port(struct net_bridge_port *port) +{ +} + +static inline void br_multicast_del_port(struct net_bridge_port *port) +{ +} + +static inline void br_multicast_enable_port(struct net_bridge_port *port) +{ +} + +static inline void br_multicast_disable_port(struct net_bridge_port *port) +{ +} + +static inline void br_multicast_init(struct net_bridge *br) +{ +} + +static inline void br_multicast_open(struct net_bridge *br) +{ +} + +static inline void br_multicast_stop(struct net_bridge *br) +{ +} + +static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, + struct sk_buff *skb) +{ +} + +static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, + struct sk_buff *skb, + struct sk_buff *skb2) +{ +} +static inline bool br_multicast_is_router(struct net_bridge *br) +{ + return 0; +} +static inline bool br_multicast_querier_exists(struct net_bridge *br, + struct ethhdr *eth) +{ + return false; +} +static inline void br_mdb_init(void) +{ +} +static inline void br_mdb_uninit(void) +{ +} +#endif + +/* br_vlan.c */ +#ifdef CONFIG_BRIDGE_VLAN_FILTERING +bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, + struct sk_buff *skb, u16 *vid); +bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, + const struct sk_buff *skb); +bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); +struct sk_buff *br_handle_vlan(struct net_bridge *br, + const struct net_port_vlans *v, + struct sk_buff *skb); +int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); +int br_vlan_delete(struct net_bridge *br, u16 vid); +void br_vlan_flush(struct net_bridge *br); +bool br_vlan_find(struct net_bridge *br, u16 vid); +int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); +int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); +int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); +void nbp_vlan_flush(struct net_bridge_port *port); +bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); + +static inline struct net_port_vlans *br_get_vlan_info( + const struct net_bridge *br) +{ + return rcu_dereference_rtnl(br->vlan_info); +} + +static inline struct net_port_vlans *nbp_get_vlan_info( + const struct net_bridge_port *p) +{ + return rcu_dereference_rtnl(p->vlan_info); +} + +/* Since bridge now depends on 8021Q module, but the time bridge sees the + * skb, the vlan tag will always be present if the frame was tagged. + */ +static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) +{ + int err = 0; + + if (vlan_tx_tag_present(skb)) + *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; + else { + *vid = 0; + err = -EINVAL; + } + + return err; +} + +static inline u16 br_get_pvid(const struct net_port_vlans *v) +{ + /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if + * vid wasn't set + */ + smp_rmb(); + return v->pvid ?: VLAN_N_VID; +} + +#else +static inline bool br_allowed_ingress(struct net_bridge *br, + struct net_port_vlans *v, + struct sk_buff *skb, + u16 *vid) +{ + return true; +} + +static inline bool br_allowed_egress(struct net_bridge *br, + const struct net_port_vlans *v, + const struct sk_buff *skb) +{ + return true; +} + +static inline bool br_should_learn(struct net_bridge_port *p, + struct sk_buff *skb, u16 *vid) +{ + return true; +} + +static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, + const struct net_port_vlans *v, + struct sk_buff *skb) +{ + return skb; +} + +static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) +{ + return -EOPNOTSUPP; +} + +static inline int br_vlan_delete(struct net_bridge *br, u16 vid) +{ + return -EOPNOTSUPP; +} + +static inline void br_vlan_flush(struct net_bridge *br) +{ +} + +static inline bool br_vlan_find(struct net_bridge *br, u16 vid) +{ + return false; +} + +static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) +{ + return -EOPNOTSUPP; +} + +static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) +{ + return -EOPNOTSUPP; +} + +static inline void nbp_vlan_flush(struct net_bridge_port *port) +{ +} + +static inline struct net_port_vlans *br_get_vlan_info( + const struct net_bridge *br) +{ + return NULL; +} +static inline struct net_port_vlans *nbp_get_vlan_info( + const struct net_bridge_port *p) +{ + return NULL; +} + +static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) +{ + return false; +} + +static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) +{ + return 0; +} +static inline u16 br_get_pvid(const struct net_port_vlans *v) +{ + return VLAN_N_VID; /* Returns invalid vid */ +} +#endif /* br_netfilter.c */ #ifdef CONFIG_BRIDGE_NETFILTER -extern int br_netfilter_init(void); -extern void br_netfilter_fini(void); -extern void br_netfilter_rtable_init(struct net_bridge *); +int br_netfilter_init(void); +void br_netfilter_fini(void); +void br_netfilter_rtable_init(struct net_bridge *); #else #define br_netfilter_init() (0) -#define br_netfilter_fini() do { } while(0) +#define br_netfilter_fini() do { } while (0) #define br_netfilter_rtable_init(x) #endif /* br_stp.c */ -extern void br_log_state(const struct net_bridge_port *p); -extern struct net_bridge_port *br_get_port(struct net_bridge *br, - u16 port_no); -extern void br_init_port(struct net_bridge_port *p); -extern void br_become_designated_port(struct net_bridge_port *p); +void br_log_state(const struct net_bridge_port *p); +struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); +void br_init_port(struct net_bridge_port *p); +void br_become_designated_port(struct net_bridge_port *p); + +void __br_set_forward_delay(struct net_bridge *br, unsigned long t); +int br_set_forward_delay(struct net_bridge *br, unsigned long x); +int br_set_hello_time(struct net_bridge *br, unsigned long x); +int br_set_max_age(struct net_bridge *br, unsigned long x); + /* br_stp_if.c */ -extern void br_stp_enable_bridge(struct net_bridge *br); -extern void br_stp_disable_bridge(struct net_bridge *br); -extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); -extern void br_stp_enable_port(struct net_bridge_port *p); -extern void br_stp_disable_port(struct net_bridge_port *p); -extern void br_stp_recalculate_bridge_id(struct net_bridge *br); -extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); -extern void br_stp_set_bridge_priority(struct net_bridge *br, - u16 newprio); -extern void br_stp_set_port_priority(struct net_bridge_port *p, - u8 newprio); -extern void br_stp_set_path_cost(struct net_bridge_port *p, - u32 path_cost); -extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); +void br_stp_enable_bridge(struct net_bridge *br); +void br_stp_disable_bridge(struct net_bridge *br); +void br_stp_set_enabled(struct net_bridge *br, unsigned long val); +void br_stp_enable_port(struct net_bridge_port *p); +void br_stp_disable_port(struct net_bridge_port *p); +bool br_stp_recalculate_bridge_id(struct net_bridge *br); +void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); +void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); +int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); +int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); +ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); /* br_stp_bpdu.c */ struct stp_proto; -extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, - struct net_device *dev); +void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, + struct net_device *dev); /* br_stp_timer.c */ -extern void br_stp_timer_init(struct net_bridge *br); -extern void br_stp_port_timer_init(struct net_bridge_port *p); -extern unsigned long br_timer_value(const struct timer_list *timer); +void br_stp_timer_init(struct net_bridge *br); +void br_stp_port_timer_init(struct net_bridge_port *p); +unsigned long br_timer_value(const struct timer_list *timer); /* br.c */ #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE) @@ -249,24 +808,160 @@ #endif /* br_netlink.c */ -extern int br_netlink_init(void); -extern void br_netlink_fini(void); -extern void br_ifinfo_notify(int event, struct net_bridge_port *port); +extern struct rtnl_link_ops br_link_ops; +int br_netlink_init(void); +void br_netlink_fini(void); +void br_ifinfo_notify(int event, struct net_bridge_port *port); +int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); +int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); +int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, + u32 filter_mask); #ifdef CONFIG_SYSFS /* br_sysfs_if.c */ extern struct sysfs_ops brport_sysfs_ops; -extern int br_sysfs_addif(struct net_bridge_port *p); +int br_sysfs_addif(struct net_bridge_port *p); + +#if 0 + /* AVM: revert effect of commit + * e0f43752a942b7be1bc06b9fd74e20ae337c1cca bridge: update sysfs link names if port device names have changed */ +int br_sysfs_renameif(struct net_bridge_port *p); +#endif /* br_sysfs_br.c */ -extern int br_sysfs_addbr(struct net_device *dev); -extern void br_sysfs_delbr(struct net_device *dev); +int br_sysfs_addbr(struct net_device *dev); +void br_sysfs_delbr(struct net_device *dev); #else -#define br_sysfs_addif(p) (0) -#define br_sysfs_addbr(dev) (0) -#define br_sysfs_delbr(dev) do { } while(0) +static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } +#if 0 + /* AVM: revert effect of commit + * e0f43752a942b7be1bc06b9fd74e20ae337c1cca bridge: update sysfs link names if port device names have changed */ +static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } +#endif +static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } +static inline void br_sysfs_delbr(struct net_device *dev) { return; } #endif /* CONFIG_SYSFS */ + +/* +++ + * AVM: not present in 2.6.32; reimplemented/copied simple versions */ +static inline void eth_random_addr(u8 *addr) +{ + get_random_bytes(addr, ETH_ALEN); + addr[0] &= 0xfe; /* clear multicast bit */ + addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} + +#define random_ether_addr(addr) eth_random_addr(addr) + +static inline void eth_broadcast_addr(u8 *addr) +{ + memset(addr, 0xff, ETH_ALEN); +} + +static inline void eth_zero_addr(u8 *addr) +{ + memset(addr, 0x00, ETH_ALEN); +} + +static inline void eth_hw_addr_random(struct net_device *dev) +{ + eth_random_addr(dev->dev_addr); +} + +static inline void ether_addr_copy(u8 *dst, const u8 *src) +{ + memcpy(dst, src, ETH_ALEN); +} + +static inline int ether_addr_equal(const u8 *a, const u8 *b) +{ + return !memcmp(a, b, ETH_ALEN); +} + +static const u8 eth_reserved_addr_base[ETH_ALEN] __aligned(2) = +{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; + +/* mostly-copy from 3.15 */ +static inline bool is_link_local_ether_addr(const u8 *addr) +{ + __be16 *a = (__be16 *)addr; + static const __be16 *b = (const __be16 *)eth_reserved_addr_base; + static const __be16 m = cpu_to_be16(0xfff0); + + BUG_ON((unsigned long)addr & 1); /* ensure 16it align */ + + return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0; +} + +/* copy from 3.15 */ +static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev, + unsigned int length, gfp_t gfp) +{ + struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp); + + if (NET_IP_ALIGN && skb) + skb_reserve(skb, NET_IP_ALIGN); + return skb; +} + +/* copy from 3.15 */ +static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev, + unsigned int length) +{ + return __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC); +} +static inline u32 ipv6_addr_hash(const struct in6_addr *a) +{ + return (__force u32)(a->s6_addr32[0] ^ a->s6_addr32[1] ^ + a->s6_addr32[2] ^ a->s6_addr32[3]); +} + +/* renamed by 1de5a71c3e6eae2fbf15e9a9e13a8fc269bb82bc */ +#define IPV6_TLV_PAD1 IPV6_TLV_PAD0 + +/* renamed by f646968f8f7c624587de729115d802372b9063dd */ +#define NETIF_F_HW_VLAN_CTAG_TX NETIF_F_HW_VLAN_TX + +static inline clock_t jiffies_delta_to_clock_t(long delta) +{ + return jiffies_to_clock_t(max(0L, delta)); +} + +/* copy from 3.15 */ +static inline bool is_skb_forwardable(struct net_device *dev, struct sk_buff *skb) +{ + unsigned int len; + + if (!(dev->flags & IFF_UP)) + return false; + + len = dev->mtu + dev->hard_header_len + VLAN_HLEN; + if (skb->len <= len) + return true; + + /* if TSO is enabled, we don't care about the length as the packet + * could be forwarded without being segmented before + */ + if (skb_is_gso(skb)) + return true; + + return false; +} + +typedef int br_should_route_hook_t(struct sk_buff *skb); + +/* copy from 3.15 */ +#define DEVICE_ATTR(_name, _mode, _show, _store) \ + struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define DEVICE_ATTR_RW(_name) \ + struct device_attribute dev_attr_##_name = __ATTR_RW(_name) +#define DEVICE_ATTR_RO(_name) \ + struct device_attribute dev_attr_##_name = __ATTR_RO(_name) +#define DEVICE_ATTR_WO(_name) \ + struct device_attribute dev_attr_##_name = __ATTR_WO(_name) +/* +++ */ + #endif