batman-adv: make the AP isolation attribute VLAN specific
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>
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 @@
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 @@
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 @@
#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_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 @@
&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 @@
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_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 @@
}
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 @@
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 @@
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_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_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 @@
* @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 @@
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