@@ -681,6 +681,36 @@ err_out:
return NET_RX_DROP;
}
+/* This function returns true if the interface represented by ifindex is a
+ * 802.11 wireless device */
+bool is_wifi_iface(int ifindex)
+{
+ struct net_device *net_device = NULL;
+ bool ret = false;
+
+ if (ifindex == NULL_IFINDEX)
+ goto out;
+
+ net_device = dev_get_by_index(&init_net, ifindex);
+ if (!net_device)
+ goto out;
+
+#ifdef CONFIG_WIRELESS_EXT
+ /* pre-cfg80211 drivers have to implement WEXT, so it is possible to
+ * check for wireless_handlers != NULL */
+ if (net_device->wireless_handlers)
+ ret = true;
+ else
+#endif
+ /* cfg80211 drivers have to set ieee80211_ptr */
+ if (net_device->ieee80211_ptr)
+ ret = true;
+out:
+ if (net_device)
+ dev_put(net_device);
+ return ret;
+}
+
struct notifier_block hard_if_notifier = {
.notifier_call = hard_if_event,
};
@@ -42,6 +42,7 @@ void hardif_remove_interfaces(void);
int hardif_min_mtu(struct net_device *soft_iface);
void update_min_mtu(struct net_device *soft_iface);
void hardif_free_rcu(struct rcu_head *rcu);
+bool is_wifi_iface(int ifindex);
static inline void hardif_free_ref(struct hard_iface *hard_iface)
{
@@ -107,7 +107,7 @@ int mesh_init(struct net_device *soft_iface)
if (tt_init(bat_priv) < 1)
goto err;
- tt_local_add(soft_iface, soft_iface->dev_addr);
+ tt_local_add(soft_iface, soft_iface->dev_addr, NULL_IFINDEX);
if (vis_init(bat_priv) < 1)
goto err;
@@ -62,6 +62,8 @@
#define NO_FLAGS 0
+#define NULL_IFINDEX 0 /* dummy ifindex used to avoid iface checks */
+
#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
#define LOG_BUF_LEN 8192 /* has to be a power of 2 */
@@ -84,6 +84,7 @@ enum tt_query_flags {
enum tt_client_flags {
TT_CLIENT_DEL = 1 << 0,
TT_CLIENT_ROAM = 1 << 1,
+ TT_CLIENT_WIFI = 1 << 2,
TT_CLIENT_NOPURGE = 1 << 8,
TT_CLIENT_NEW = 1 << 9,
TT_CLIENT_PENDING = 1 << 10
@@ -1299,7 +1299,7 @@ int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if)
roam_adv_packet->client);
tt_global_add(bat_priv, orig_node, roam_adv_packet->client,
- atomic_read(&orig_node->last_ttvn) + 1, true);
+ atomic_read(&orig_node->last_ttvn) + 1, true, false);
/* Roaming phase starts: I have new information but the ttvn has not
* been incremented yet. This flag will make me check all the incoming
@@ -536,7 +536,7 @@ static int interface_set_mac_addr(struct net_device *dev, void *p)
if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) {
tt_local_remove(bat_priv, dev->dev_addr,
"mac address changed", false);
- tt_local_add(dev, addr->sa_data);
+ tt_local_add(dev, addr->sa_data, NULL_IFINDEX);
}
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
@@ -595,7 +595,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
goto dropped;
/* Register the client MAC in the transtable */
- tt_local_add(soft_iface, ethhdr->h_source);
+ tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
orig_node = transtable_search(bat_priv, ethhdr->h_dest);
if (is_multicast_ether_addr(ethhdr->h_dest) ||
@@ -183,7 +183,8 @@ static int tt_local_init(struct bat_priv *bat_priv)
return 1;
}
-void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
+void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+ int ifindex)
{
struct bat_priv *bat_priv = netdev_priv(soft_iface);
struct tt_local_entry *tt_local_entry = NULL;
@@ -207,6 +208,8 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
memcpy(tt_local_entry->addr, addr, ETH_ALEN);
tt_local_entry->last_seen = jiffies;
tt_local_entry->flags = NO_FLAGS;
+ if (is_wifi_iface(ifindex))
+ tt_local_entry->flags |= TT_CLIENT_WIFI;
atomic_set(&tt_local_entry->refcount, 2);
/* the batman interface mac address should never be purged */
@@ -495,7 +498,8 @@ static void tt_changes_list_free(struct bat_priv *bat_priv)
/* caller must hold orig_node refcount */
int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
- const unsigned char *tt_addr, uint8_t ttvn, bool roaming)
+ const unsigned char *tt_addr, uint8_t ttvn, bool roaming,
+ bool wifi)
{
struct tt_global_entry *tt_global_entry;
struct orig_node *orig_node_tmp;
@@ -537,6 +541,9 @@ int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
tt_global_entry->roam_at = 0;
}
+ if (wifi)
+ tt_global_entry->flags |= TT_CLIENT_WIFI;
+
bat_dbg(DBG_TT, bat_priv,
"Creating new global tt entry: %pM (via %pM)\n",
tt_global_entry->addr, orig_node->orig);
@@ -1363,7 +1370,9 @@ static void _tt_update_changes(struct bat_priv *bat_priv,
(tt_change + i)->flags & TT_CLIENT_ROAM);
else
if (!tt_global_add(bat_priv, orig_node,
- (tt_change + i)->addr, ttvn, false))
+ (tt_change + i)->addr, ttvn, false,
+ (tt_change + i)->flags &
+ TT_CLIENT_WIFI))
/* In case of problem while storing a
* global_entry, we stop the updating
* procedure without committing the
@@ -26,15 +26,16 @@ int tt_len(int changes_num);
int tt_changes_fill_buffer(struct bat_priv *bat_priv,
unsigned char *buff, int buff_len);
int tt_init(struct bat_priv *bat_priv);
-void tt_local_add(struct net_device *soft_iface, const uint8_t *addr);
+void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+ int ifindex);
void tt_local_remove(struct bat_priv *bat_priv,
const uint8_t *addr, const char *message, bool roaming);
int tt_local_seq_print_text(struct seq_file *seq, void *offset);
void tt_global_add_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
const unsigned char *tt_buff, int tt_buff_len);
-int tt_global_add(struct bat_priv *bat_priv,
- struct orig_node *orig_node, const unsigned char *addr,
- uint8_t ttvn, bool roaming);
+int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
+ const unsigned char *addr, uint8_t ttvn, bool roaming,
+ bool wifi);
int tt_global_seq_print_text(struct seq_file *seq, void *offset);
void tt_global_del_orig(struct bat_priv *bat_priv,
struct orig_node *orig_node, const char *message);