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Diffstat (limited to 'net/batman-adv/hard-interface.c')
-rw-r--r--net/batman-adv/hard-interface.c46
1 files changed, 25 insertions, 21 deletions
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index dfbfccc9fe40..db7aacf1e095 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -46,7 +46,7 @@ void hardif_free_rcu(struct rcu_head *rcu)
kfree(hard_iface);
}
-struct hard_iface *hardif_get_by_netdev(struct net_device *net_dev)
+struct hard_iface *hardif_get_by_netdev(const struct net_device *net_dev)
{
struct hard_iface *hard_iface;
@@ -64,7 +64,7 @@ out:
return hard_iface;
}
-static int is_valid_iface(struct net_device *net_dev)
+static int is_valid_iface(const struct net_device *net_dev)
{
if (net_dev->flags & IFF_LOOPBACK)
return 0;
@@ -86,7 +86,7 @@ static int is_valid_iface(struct net_device *net_dev)
return 1;
}
-static struct hard_iface *hardif_get_active(struct net_device *soft_iface)
+static struct hard_iface *hardif_get_active(const struct net_device *soft_iface)
{
struct hard_iface *hard_iface;
@@ -138,7 +138,7 @@ static void primary_if_select(struct bat_priv *bat_priv,
if (new_hard_iface && !atomic_inc_not_zero(&new_hard_iface->refcount))
new_hard_iface = NULL;
- curr_hard_iface = bat_priv->primary_if;
+ curr_hard_iface = rcu_dereference_protected(bat_priv->primary_if, 1);
rcu_assign_pointer(bat_priv->primary_if, new_hard_iface);
if (curr_hard_iface)
@@ -152,15 +152,9 @@ static void primary_if_select(struct bat_priv *bat_priv,
batman_packet->ttl = TTL;
primary_if_update_addr(bat_priv);
-
- /***
- * hacky trick to make sure that we send the TT information via
- * our new primary interface
- */
- atomic_set(&bat_priv->tt_local_changed, 1);
}
-static bool hardif_is_iface_up(struct hard_iface *hard_iface)
+static bool hardif_is_iface_up(const struct hard_iface *hard_iface)
{
if (hard_iface->net_dev->flags & IFF_UP)
return true;
@@ -176,9 +170,9 @@ static void update_mac_addresses(struct hard_iface *hard_iface)
hard_iface->net_dev->dev_addr, ETH_ALEN);
}
-static void check_known_mac_addr(struct net_device *net_dev)
+static void check_known_mac_addr(const struct net_device *net_dev)
{
- struct hard_iface *hard_iface;
+ const struct hard_iface *hard_iface;
rcu_read_lock();
list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
@@ -204,8 +198,8 @@ static void check_known_mac_addr(struct net_device *net_dev)
int hardif_min_mtu(struct net_device *soft_iface)
{
- struct bat_priv *bat_priv = netdev_priv(soft_iface);
- struct hard_iface *hard_iface;
+ const struct bat_priv *bat_priv = netdev_priv(soft_iface);
+ const struct hard_iface *hard_iface;
/* allow big frames if all devices are capable to do so
* (have MTU > 1500 + BAT_HEADER_LEN) */
int min_mtu = ETH_DATA_LEN;
@@ -285,7 +279,8 @@ static void hardif_deactivate_interface(struct hard_iface *hard_iface)
update_min_mtu(hard_iface->soft_iface);
}
-int hardif_enable_interface(struct hard_iface *hard_iface, char *iface_name)
+int hardif_enable_interface(struct hard_iface *hard_iface,
+ const char *iface_name)
{
struct bat_priv *bat_priv;
struct batman_packet *batman_packet;
@@ -336,10 +331,11 @@ int hardif_enable_interface(struct hard_iface *hard_iface, char *iface_name)
batman_packet = (struct batman_packet *)(hard_iface->packet_buff);
batman_packet->packet_type = BAT_PACKET;
batman_packet->version = COMPAT_VERSION;
- batman_packet->flags = 0;
+ batman_packet->flags = NO_FLAGS;
batman_packet->ttl = 2;
batman_packet->tq = TQ_MAX_VALUE;
- batman_packet->num_tt = 0;
+ batman_packet->tt_num_changes = 0;
+ batman_packet->ttvn = 0;
hard_iface->if_num = bat_priv->num_ifaces;
bat_priv->num_ifaces++;
@@ -458,7 +454,7 @@ static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
dev_hold(net_dev);
- hard_iface = kmalloc(sizeof(struct hard_iface), GFP_ATOMIC);
+ hard_iface = kmalloc(sizeof(*hard_iface), GFP_ATOMIC);
if (!hard_iface) {
pr_err("Can't add interface (%s): out of memory\n",
net_dev->name);
@@ -522,7 +518,7 @@ void hardif_remove_interfaces(void)
static int hard_if_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
- struct net_device *net_dev = (struct net_device *)ptr;
+ struct net_device *net_dev = ptr;
struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
struct hard_iface *primary_if = NULL;
struct bat_priv *bat_priv;
@@ -567,7 +563,7 @@ static int hard_if_event(struct notifier_block *this,
break;
default:
break;
- };
+ }
hardif_put:
hardif_free_ref(hard_iface);
@@ -658,6 +654,14 @@ static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
case BAT_VIS:
ret = recv_vis_packet(skb, hard_iface);
break;
+ /* Translation table query (request or response) */
+ case BAT_TT_QUERY:
+ ret = recv_tt_query(skb, hard_iface);
+ break;
+ /* Roaming advertisement */
+ case BAT_ROAM_ADV:
+ ret = recv_roam_adv(skb, hard_iface);
+ break;
default:
ret = NET_RX_DROP;
}