diff options
| -rw-r--r-- | net/batman-adv/Kconfig | 12 | ||||
| -rw-r--r-- | net/batman-adv/Makefile | 2 | ||||
| -rw-r--r-- | net/batman-adv/bat_debugfs.c | 7 | ||||
| -rw-r--r-- | net/batman-adv/bat_sysfs.c | 4 | ||||
| -rw-r--r-- | net/batman-adv/bridge_loop_avoidance.h | 57 | ||||
| -rw-r--r-- | net/batman-adv/soft-interface.c | 4 | ||||
| -rw-r--r-- | net/batman-adv/types.h | 8 |
7 files changed, 89 insertions, 5 deletions
diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig index 6ff977c1f3bc..53f5244e28f8 100644 --- a/net/batman-adv/Kconfig +++ b/net/batman-adv/Kconfig @@ -4,7 +4,7 @@ config BATMAN_ADV tristate "B.A.T.M.A.N. Advanced Meshing Protocol" - depends on NET && INET + depends on NET select CRC16 default n help @@ -14,6 +14,16 @@ config BATMAN_ADV http://www.open-mesh.org/ for more information and user space tools. +config BATMAN_ADV_BLA + bool "Bridge Loop Avoidance" + depends on BATMAN_ADV && INET + default y + help + This option enables BLA (Bridge Loop Avoidance), a mechanism + to avoid Ethernet frames looping when mesh nodes are connected + to both the same LAN and the same mesh. If you will never use + more than one mesh node in the same LAN, you can safely remove + this feature and save some space. config BATMAN_ADV_DEBUG bool "B.A.T.M.A.N. debugging" diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile index 94b67fd81bf7..6d5c1940667d 100644 --- a/net/batman-adv/Makefile +++ b/net/batman-adv/Makefile @@ -23,7 +23,7 @@ batman-adv-y += bat_debugfs.o batman-adv-y += bat_iv_ogm.o batman-adv-y += bat_sysfs.o batman-adv-y += bitarray.o -batman-adv-y += bridge_loop_avoidance.o +batman-adv-$(CONFIG_BATMAN_ADV_BLA) += bridge_loop_avoidance.o batman-adv-y += gateway_client.o batman-adv-y += gateway_common.o batman-adv-y += hard-interface.o diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c index 0e3517773a8b..916380c73ab7 100644 --- a/net/batman-adv/bat_debugfs.c +++ b/net/batman-adv/bat_debugfs.c @@ -245,12 +245,13 @@ static int transtable_global_open(struct inode *inode, struct file *file) return single_open(file, tt_global_seq_print_text, net_dev); } +#ifdef CONFIG_BATMAN_ADV_BLA static int bla_claim_table_open(struct inode *inode, struct file *file) { struct net_device *net_dev = (struct net_device *)inode->i_private; return single_open(file, bla_claim_table_seq_print_text, net_dev); } - +#endif static int transtable_local_open(struct inode *inode, struct file *file) { @@ -285,7 +286,9 @@ static BAT_DEBUGINFO(routing_algos, S_IRUGO, bat_algorithms_open); static BAT_DEBUGINFO(originators, S_IRUGO, originators_open); static BAT_DEBUGINFO(gateways, S_IRUGO, gateways_open); static BAT_DEBUGINFO(transtable_global, S_IRUGO, transtable_global_open); +#ifdef CONFIG_BATMAN_ADV_BLA static BAT_DEBUGINFO(bla_claim_table, S_IRUGO, bla_claim_table_open); +#endif static BAT_DEBUGINFO(transtable_local, S_IRUGO, transtable_local_open); static BAT_DEBUGINFO(vis_data, S_IRUGO, vis_data_open); @@ -293,7 +296,9 @@ static struct bat_debuginfo *mesh_debuginfos[] = { &bat_debuginfo_originators, &bat_debuginfo_gateways, &bat_debuginfo_transtable_global, +#ifdef CONFIG_BATMAN_ADV_BLA &bat_debuginfo_bla_claim_table, +#endif &bat_debuginfo_transtable_local, &bat_debuginfo_vis_data, NULL, diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c index 824bfe710687..c6efd687ca75 100644 --- a/net/batman-adv/bat_sysfs.c +++ b/net/batman-adv/bat_sysfs.c @@ -386,7 +386,9 @@ static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr, BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); +#ifdef CONFIG_BATMAN_ADV_BLA BAT_ATTR_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); +#endif BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu); BAT_ATTR_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode); @@ -405,7 +407,9 @@ BAT_ATTR_UINT(log_level, S_IRUGO | S_IWUSR, 0, 15, NULL); static struct bat_attribute *mesh_attrs[] = { &bat_attr_aggregated_ogms, &bat_attr_bonding, +#ifdef CONFIG_BATMAN_ADV_BLA &bat_attr_bridge_loop_avoidance, +#endif &bat_attr_fragmentation, &bat_attr_ap_isolation, &bat_attr_vis_mode, diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h index 9468c245121c..4a8e4fc766bc 100644 --- a/net/batman-adv/bridge_loop_avoidance.h +++ b/net/batman-adv/bridge_loop_avoidance.h @@ -22,6 +22,7 @@ #ifndef _NET_BATMAN_ADV_BLA_H_ #define _NET_BATMAN_ADV_BLA_H_ +#ifdef CONFIG_BATMAN_ADV_BLA int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); int bla_is_backbone_gw(struct sk_buff *skb, @@ -37,5 +38,61 @@ int bla_init(struct bat_priv *bat_priv); void bla_free(struct bat_priv *bat_priv); #define BLA_CRC_INIT 0 +#else /* ifdef CONFIG_BATMAN_ADV_BLA */ + +static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, + short vid) +{ + return 0; +} + +static inline int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, + short vid) +{ + return 0; +} + +static inline int bla_is_backbone_gw(struct sk_buff *skb, + struct orig_node *orig_node, + int hdr_size) +{ + return 0; +} + +static inline int bla_claim_table_seq_print_text(struct seq_file *seq, + void *offset) +{ + return 0; +} + +static inline int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, + uint8_t *orig) +{ + return 0; +} + +static inline int bla_check_bcast_duplist(struct bat_priv *bat_priv, + struct bcast_packet *bcast_packet, + int hdr_size) +{ + return 0; +} + +static inline void bla_update_orig_address(struct bat_priv *bat_priv, + struct hard_iface *primary_if, + struct hard_iface *oldif) +{ +} + +static inline int bla_init(struct bat_priv *bat_priv) +{ + return 1; +} + +static inline void bla_free(struct bat_priv *bat_priv) +{ +} + +#endif /* ifdef CONFIG_BATMAN_ADV_BLA */ #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */ diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 10ab49aa568f..efe0fbaadcd6 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -134,7 +134,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) 0x00}; unsigned int header_len = 0; int data_len = skb->len, ret; - short vid = -1; + short vid __maybe_unused = -1; bool do_bcast = false; if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE) @@ -256,7 +256,7 @@ void interface_rx(struct net_device *soft_iface, struct bat_priv *bat_priv = netdev_priv(soft_iface); struct ethhdr *ethhdr; struct vlan_ethhdr *vhdr; - short vid = -1; + short vid __maybe_unused = -1; /* check if enough space is available for pulling, and pull */ if (!pskb_may_pull(skb, hdr_size)) diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 7f7f610ea1d1..a5b1a6333def 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -140,11 +140,13 @@ struct neigh_node { spinlock_t tq_lock; /* protects: tq_recv, tq_index */ }; +#ifdef CONFIG_BATMAN_ADV_BLA struct bcast_duplist_entry { uint8_t orig[ETH_ALEN]; uint16_t crc; unsigned long entrytime; }; +#endif struct bat_priv { atomic_t mesh_state; @@ -186,14 +188,18 @@ struct bat_priv { struct hashtable_t *orig_hash; struct hashtable_t *tt_local_hash; struct hashtable_t *tt_global_hash; +#ifdef CONFIG_BATMAN_ADV_BLA struct hashtable_t *claim_hash; struct hashtable_t *backbone_hash; +#endif struct list_head tt_req_list; /* list of pending tt_requests */ struct list_head tt_roam_list; struct hashtable_t *vis_hash; +#ifdef CONFIG_BATMAN_ADV_BLA struct bcast_duplist_entry bcast_duplist[DUPLIST_SIZE]; int bcast_duplist_curr; struct bla_claim_dst claim_dest; +#endif spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ spinlock_t forw_bcast_list_lock; /* protects */ spinlock_t tt_changes_list_lock; /* protects tt_changes */ @@ -261,6 +267,7 @@ struct tt_orig_list_entry { struct hlist_node list; }; +#ifdef CONFIG_BATMAN_ADV_BLA struct backbone_gw { uint8_t orig[ETH_ALEN]; short vid; /* used VLAN ID */ @@ -282,6 +289,7 @@ struct claim { atomic_t refcount; struct hlist_node hash_entry; }; +#endif struct tt_change_node { struct list_head list; |