From: Antonio Quartulli antonio@open-mesh.com
AP isolation has to be enabled on one VLAN interface only. This patch moves the AP isolation attribute to the per-vlan interface attribute set, enabling it to have a different value depending on the selected vlan.
Signed-off-by: Antonio Quartulli antonio@open-mesh.com Signed-off-by: Marek Lindner lindner_marek@yahoo.de --- Documentation/ABI/testing/sysfs-class-net-mesh | 5 +++-- net/batman-adv/soft-interface.c | 6 ++++-- net/batman-adv/sysfs.c | 5 +++-- net/batman-adv/translation-table.c | 27 +++++++++++++++++++------- net/batman-adv/translation-table.h | 2 +- net/batman-adv/types.h | 4 ++-- 6 files changed, 33 insertions(+), 16 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh index dfdea2b..0baa657 100644 --- a/Documentation/ABI/testing/sysfs-class-net-mesh +++ b/Documentation/ABI/testing/sysfs-class-net-mesh @@ -6,13 +6,14 @@ Description: Indicates whether the batman protocol messages of the mesh <mesh_iface> shall be aggregated or not.
-What: /sys/class/net/<mesh_iface>/mesh/ap_isolation +What: /sys/class/net/<mesh_iface>/mesh/<vlan_subdir>/ap_isolation Date: May 2011 Contact: Antonio Quartulli antonio@meshcoding.com Description: Indicates whether the data traffic going from a wireless client to another wireless client will be - silently dropped. + silently dropped. <vlan_subdir> is empty when referring + to the untagged lan.
What: /sys/class/net/<mesh_iface>/mesh/bonding Date: June 2010 diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index f74200c..baa74b9 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -381,7 +381,8 @@ void batadv_interface_rx(struct net_device *soft_iface, batadv_tt_add_temporary_global_entry(bat_priv, orig_node, ethhdr->h_source, vid);
- if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) + if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest, + vid)) goto dropped;
netif_rx(skb); @@ -458,6 +459,8 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) vlan->vid = vid; atomic_set(&vlan->refcount, 1);
+ atomic_set(&vlan->ap_isolation, 0); + err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan); if (err) { kfree(vlan); @@ -657,7 +660,6 @@ static int batadv_softif_init_late(struct net_device *dev) #ifdef CONFIG_BATMAN_ADV_DAT atomic_set(&bat_priv->distributed_arp_table, 1); #endif - atomic_set(&bat_priv->ap_isolation, 0); atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF); atomic_set(&bat_priv->gw_sel_class, 20); atomic_set(&bat_priv->gw.bandwidth_down, 100); diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c index f419d21..6335433 100644 --- a/net/batman-adv/sysfs.c +++ b/net/batman-adv/sysfs.c @@ -453,7 +453,6 @@ BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, batadv_dat_status_update); #endif BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); -BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, batadv_store_gw_mode); @@ -483,7 +482,6 @@ static struct batadv_attribute *batadv_mesh_attrs[] = { &batadv_attr_distributed_arp_table, #endif &batadv_attr_fragmentation, - &batadv_attr_ap_isolation, &batadv_attr_routing_algo, &batadv_attr_gw_mode, &batadv_attr_orig_interval, @@ -499,10 +497,13 @@ static struct batadv_attribute *batadv_mesh_attrs[] = { NULL, };
+BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); + /** * batadv_vlan_attrs - array of vlan specific sysfs attributes */ static struct batadv_attribute *batadv_vlan_attrs[] = { + &batadv_attr_vlan_ap_isolation, NULL, };
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 9bf928c..58794c4 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1482,8 +1482,19 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv, struct batadv_tt_global_entry *tt_global_entry = NULL; struct batadv_orig_node *orig_node = NULL; struct batadv_tt_orig_list_entry *best_entry; + bool ap_isolation_enabled = false; + struct batadv_softif_vlan *vlan;
- if (src && atomic_read(&bat_priv->ap_isolation)) { + /* if the AP isolation is requested on a VLAN, then check for its + * setting in the proper VLAN private data structure + */ + vlan = batadv_softif_vlan_get(bat_priv, vid); + if (vlan) { + ap_isolation_enabled = atomic_read(&vlan->ap_isolation); + batadv_softif_vlan_free_ref(vlan); + } + + if (src && ap_isolation_enabled) { tt_local_entry = batadv_tt_local_hash_find(bat_priv, src, vid); if (!tt_local_entry || (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING)) @@ -2547,22 +2558,22 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv) }
bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src, - uint8_t *dst) + uint8_t *dst, unsigned short vid) { struct batadv_tt_local_entry *tt_local_entry = NULL; struct batadv_tt_global_entry *tt_global_entry = NULL; + struct batadv_softif_vlan *vlan; bool ret = false;
- if (!atomic_read(&bat_priv->ap_isolation)) + vlan = batadv_softif_vlan_get(bat_priv, vid); + if (!vlan || !atomic_read(&vlan->ap_isolation)) goto out;
- tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst, - BATADV_NO_FLAGS); + tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst, vid); if (!tt_local_entry) goto out;
- tt_global_entry = batadv_tt_global_hash_find(bat_priv, src, - BATADV_NO_FLAGS); + tt_global_entry = batadv_tt_global_hash_find(bat_priv, src, vid); if (!tt_global_entry) goto out;
@@ -2572,6 +2583,8 @@ bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src, ret = true;
out: + if (vlan) + batadv_softif_vlan_free_ref(vlan); if (tt_global_entry) batadv_tt_global_entry_free_ref(tt_global_entry); if (tt_local_entry) diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h index 1d9506d..c6bf33c 100644 --- a/net/batman-adv/translation-table.h +++ b/net/batman-adv/translation-table.h @@ -39,7 +39,7 @@ void batadv_tt_free(struct batadv_priv *bat_priv); bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr, unsigned short vid); bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src, - uint8_t *dst); + uint8_t *dst, unsigned short vid); void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv); bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv, uint8_t *addr, unsigned short vid); diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index e5fecd4..04a0da6 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -534,6 +534,7 @@ struct batadv_priv_nc { * struct batadv_softif_vlan - per VLAN attributes set * @vid: VLAN identifier * @kobj: kobject for sysfs vlan subdirectory + * @ap_isolation: AP isolation state * @list: list node for bat_priv::softif_vlan_list * @refcount: number of context where this object is currently in use * @rcu: struct used for freeing in a RCU-safe manner @@ -541,6 +542,7 @@ struct batadv_priv_nc { struct batadv_softif_vlan { unsigned short vid; struct kobject *kobj; + atomic_t ap_isolation; /* boolean */ struct hlist_node list; atomic_t refcount; struct rcu_head rcu; @@ -556,7 +558,6 @@ struct batadv_softif_vlan { * @bonding: bool indicating whether traffic bonding is enabled * @fragmentation: bool indicating whether traffic fragmentation is enabled * @frag_seqno: incremental counter to identify chains of egress fragments - * @ap_isolation: bool indicating whether ap isolation is enabled * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is * enabled * @distributed_arp_table: bool indicating whether distributed ARP table is @@ -603,7 +604,6 @@ struct batadv_priv { atomic_t bonding; atomic_t fragmentation; atomic_t frag_seqno; - atomic_t ap_isolation; #ifdef CONFIG_BATMAN_ADV_BLA atomic_t bridge_loop_avoidance; #endif