-/*
- * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
- *
*/
#include "main.h"
#include <linux/if_arp.h>
-void hardif_free_rcu(struct rcu_head *rcu)
+void batadv_hardif_free_rcu(struct rcu_head *rcu)
{
struct hard_iface *hard_iface;
kfree(hard_iface);
}
-struct hard_iface *hardif_get_by_netdev(const struct net_device *net_dev)
+struct hard_iface *batadv_hardif_get_by_netdev(const struct net_device *net_dev)
{
struct hard_iface *hard_iface;
rcu_read_lock();
- list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
if (hard_iface->net_dev == net_dev &&
atomic_inc_not_zero(&hard_iface->refcount))
goto out;
return hard_iface;
}
-static int is_valid_iface(const struct net_device *net_dev)
+static int batadv_is_valid_iface(const struct net_device *net_dev)
{
if (net_dev->flags & IFF_LOOPBACK)
return 0;
return 0;
/* no batman over batman */
- if (softif_is_valid(net_dev))
+ if (batadv_softif_is_valid(net_dev))
return 0;
- /* Device is being bridged */
- /* if (net_dev->priv_flags & IFF_BRIDGE_PORT)
- return 0; */
-
return 1;
}
-static struct hard_iface *hardif_get_active(const struct net_device *soft_iface)
+static struct hard_iface *
+batadv_hardif_get_active(const struct net_device *soft_iface)
{
struct hard_iface *hard_iface;
rcu_read_lock();
- list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
if (hard_iface->soft_iface != soft_iface)
continue;
return hard_iface;
}
-static void primary_if_update_addr(struct bat_priv *bat_priv,
- struct hard_iface *oldif)
+static void batadv_primary_if_update_addr(struct bat_priv *bat_priv,
+ struct hard_iface *oldif)
{
struct vis_packet *vis_packet;
struct hard_iface *primary_if;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
memcpy(vis_packet->sender_orig,
primary_if->net_dev->dev_addr, ETH_ALEN);
- bla_update_orig_address(bat_priv, primary_if, oldif);
+ batadv_bla_update_orig_address(bat_priv, primary_if, oldif);
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
}
-static void primary_if_select(struct bat_priv *bat_priv,
- struct hard_iface *new_hard_iface)
+static void batadv_primary_if_select(struct bat_priv *bat_priv,
+ struct hard_iface *new_hard_iface)
{
struct hard_iface *curr_hard_iface;
goto out;
bat_priv->bat_algo_ops->bat_primary_iface_set(new_hard_iface);
- primary_if_update_addr(bat_priv, curr_hard_iface);
+ batadv_primary_if_update_addr(bat_priv, curr_hard_iface);
out:
if (curr_hard_iface)
- hardif_free_ref(curr_hard_iface);
+ batadv_hardif_free_ref(curr_hard_iface);
}
-static bool hardif_is_iface_up(const struct hard_iface *hard_iface)
+static bool batadv_hardif_is_iface_up(const struct hard_iface *hard_iface)
{
if (hard_iface->net_dev->flags & IFF_UP)
return true;
return false;
}
-static void check_known_mac_addr(const struct net_device *net_dev)
+static void batadv_check_known_mac_addr(const struct net_device *net_dev)
{
const struct hard_iface *hard_iface;
rcu_read_lock();
- list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
if ((hard_iface->if_status != IF_ACTIVE) &&
(hard_iface->if_status != IF_TO_BE_ACTIVATED))
continue;
if (hard_iface->net_dev == net_dev)
continue;
- if (!compare_eth(hard_iface->net_dev->dev_addr,
- net_dev->dev_addr))
+ if (!batadv_compare_eth(hard_iface->net_dev->dev_addr,
+ net_dev->dev_addr))
continue;
pr_warn("The newly added mac address (%pM) already exists on: %s\n",
rcu_read_unlock();
}
-int hardif_min_mtu(struct net_device *soft_iface)
+int batadv_hardif_min_mtu(struct net_device *soft_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) */
+ * (have MTU > 1500 + BAT_HEADER_LEN)
+ */
int min_mtu = ETH_DATA_LEN;
if (atomic_read(&bat_priv->fragmentation))
goto out;
rcu_read_lock();
- list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
if ((hard_iface->if_status != IF_ACTIVE) &&
(hard_iface->if_status != IF_TO_BE_ACTIVATED))
continue;
if (hard_iface->soft_iface != soft_iface)
continue;
- min_mtu = min_t(int, hard_iface->net_dev->mtu - BAT_HEADER_LEN,
+ min_mtu = min_t(int,
+ hard_iface->net_dev->mtu - BATADV_HEADER_LEN,
min_mtu);
}
rcu_read_unlock();
}
/* adjusts the MTU if a new interface with a smaller MTU appeared. */
-void update_min_mtu(struct net_device *soft_iface)
+void batadv_update_min_mtu(struct net_device *soft_iface)
{
int min_mtu;
- min_mtu = hardif_min_mtu(soft_iface);
+ min_mtu = batadv_hardif_min_mtu(soft_iface);
if (soft_iface->mtu != min_mtu)
soft_iface->mtu = min_mtu;
}
-static void hardif_activate_interface(struct hard_iface *hard_iface)
+static void batadv_hardif_activate_interface(struct hard_iface *hard_iface)
{
struct bat_priv *bat_priv;
struct hard_iface *primary_if = NULL;
bat_priv->bat_algo_ops->bat_iface_update_mac(hard_iface);
hard_iface->if_status = IF_TO_BE_ACTIVATED;
- /**
- * the first active interface becomes our primary interface or
+ /* the first active interface becomes our primary interface or
* the next active interface after the old primary interface was removed
*/
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
- primary_if_select(bat_priv, hard_iface);
+ batadv_primary_if_select(bat_priv, hard_iface);
- bat_info(hard_iface->soft_iface, "Interface activated: %s\n",
- hard_iface->net_dev->name);
+ batadv_info(hard_iface->soft_iface, "Interface activated: %s\n",
+ hard_iface->net_dev->name);
- update_min_mtu(hard_iface->soft_iface);
+ batadv_update_min_mtu(hard_iface->soft_iface);
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
}
-static void hardif_deactivate_interface(struct hard_iface *hard_iface)
+static void batadv_hardif_deactivate_interface(struct hard_iface *hard_iface)
{
if ((hard_iface->if_status != IF_ACTIVE) &&
(hard_iface->if_status != IF_TO_BE_ACTIVATED))
hard_iface->if_status = IF_INACTIVE;
- bat_info(hard_iface->soft_iface, "Interface deactivated: %s\n",
- hard_iface->net_dev->name);
+ batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n",
+ hard_iface->net_dev->name);
- update_min_mtu(hard_iface->soft_iface);
+ batadv_update_min_mtu(hard_iface->soft_iface);
}
-int hardif_enable_interface(struct hard_iface *hard_iface,
- const char *iface_name)
+int batadv_hardif_enable_interface(struct hard_iface *hard_iface,
+ const char *iface_name)
{
struct bat_priv *bat_priv;
struct net_device *soft_iface;
+ __be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
int ret;
if (hard_iface->if_status != IF_NOT_IN_USE)
soft_iface = dev_get_by_name(&init_net, iface_name);
if (!soft_iface) {
- soft_iface = softif_create(iface_name);
+ soft_iface = batadv_softif_create(iface_name);
if (!soft_iface) {
ret = -ENOMEM;
dev_hold(soft_iface);
}
- if (!softif_is_valid(soft_iface)) {
+ if (!batadv_softif_is_valid(soft_iface)) {
pr_err("Can't create batman mesh interface %s: already exists as regular interface\n",
soft_iface->name);
ret = -EINVAL;
bat_priv = netdev_priv(hard_iface->soft_iface);
ret = bat_priv->bat_algo_ops->bat_iface_enable(hard_iface);
- if (ret < 0) {
- ret = -ENOMEM;
+ if (ret < 0)
goto err_dev;
- }
hard_iface->if_num = bat_priv->num_ifaces;
bat_priv->num_ifaces++;
hard_iface->if_status = IF_INACTIVE;
- orig_hash_add_if(hard_iface, bat_priv->num_ifaces);
+ batadv_orig_hash_add_if(hard_iface, bat_priv->num_ifaces);
- hard_iface->batman_adv_ptype.type = __constant_htons(ETH_P_BATMAN);
- hard_iface->batman_adv_ptype.func = batman_skb_recv;
+ hard_iface->batman_adv_ptype.type = ethertype;
+ hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv;
hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;
dev_add_pack(&hard_iface->batman_adv_ptype);
atomic_set(&hard_iface->frag_seqno, 1);
- bat_info(hard_iface->soft_iface, "Adding interface: %s\n",
- hard_iface->net_dev->name);
+ batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",
+ hard_iface->net_dev->name);
if (atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu <
- ETH_DATA_LEN + BAT_HEADER_LEN)
- bat_info(hard_iface->soft_iface,
- "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to %zi would solve the problem.\n",
- hard_iface->net_dev->name, hard_iface->net_dev->mtu,
- ETH_DATA_LEN + BAT_HEADER_LEN);
+ ETH_DATA_LEN + BATADV_HEADER_LEN)
+ batadv_info(hard_iface->soft_iface,
+ "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to %zi would solve the problem.\n",
+ hard_iface->net_dev->name, hard_iface->net_dev->mtu,
+ ETH_DATA_LEN + BATADV_HEADER_LEN);
if (!atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu <
- ETH_DATA_LEN + BAT_HEADER_LEN)
- bat_info(hard_iface->soft_iface,
- "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. If you experience problems getting traffic through try increasing the MTU to %zi.\n",
- hard_iface->net_dev->name, hard_iface->net_dev->mtu,
- ETH_DATA_LEN + BAT_HEADER_LEN);
-
- if (hardif_is_iface_up(hard_iface))
- hardif_activate_interface(hard_iface);
+ ETH_DATA_LEN + BATADV_HEADER_LEN)
+ batadv_info(hard_iface->soft_iface,
+ "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. If you experience problems getting traffic through try increasing the MTU to %zi.\n",
+ hard_iface->net_dev->name, hard_iface->net_dev->mtu,
+ ETH_DATA_LEN + BATADV_HEADER_LEN);
+
+ if (batadv_hardif_is_iface_up(hard_iface))
+ batadv_hardif_activate_interface(hard_iface);
else
- bat_err(hard_iface->soft_iface,
- "Not using interface %s (retrying later): interface not active\n",
- hard_iface->net_dev->name);
+ batadv_err(hard_iface->soft_iface,
+ "Not using interface %s (retrying later): interface not active\n",
+ hard_iface->net_dev->name);
/* begin scheduling originator messages on that interface */
- schedule_bat_ogm(hard_iface);
+ batadv_schedule_bat_ogm(hard_iface);
out:
return 0;
err_dev:
dev_put(soft_iface);
err:
- hardif_free_ref(hard_iface);
+ batadv_hardif_free_ref(hard_iface);
return ret;
}
-void hardif_disable_interface(struct hard_iface *hard_iface)
+void batadv_hardif_disable_interface(struct hard_iface *hard_iface)
{
struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
struct hard_iface *primary_if = NULL;
if (hard_iface->if_status == IF_ACTIVE)
- hardif_deactivate_interface(hard_iface);
+ batadv_hardif_deactivate_interface(hard_iface);
if (hard_iface->if_status != IF_INACTIVE)
goto out;
- bat_info(hard_iface->soft_iface, "Removing interface: %s\n",
- hard_iface->net_dev->name);
+ batadv_info(hard_iface->soft_iface, "Removing interface: %s\n",
+ hard_iface->net_dev->name);
dev_remove_pack(&hard_iface->batman_adv_ptype);
bat_priv->num_ifaces--;
- orig_hash_del_if(hard_iface, bat_priv->num_ifaces);
+ batadv_orig_hash_del_if(hard_iface, bat_priv->num_ifaces);
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (hard_iface == primary_if) {
struct hard_iface *new_if;
- new_if = hardif_get_active(hard_iface->soft_iface);
- primary_if_select(bat_priv, new_if);
+ new_if = batadv_hardif_get_active(hard_iface->soft_iface);
+ batadv_primary_if_select(bat_priv, new_if);
if (new_if)
- hardif_free_ref(new_if);
+ batadv_hardif_free_ref(new_if);
}
bat_priv->bat_algo_ops->bat_iface_disable(hard_iface);
hard_iface->if_status = IF_NOT_IN_USE;
/* delete all references to this hard_iface */
- purge_orig_ref(bat_priv);
- purge_outstanding_packets(bat_priv, hard_iface);
+ batadv_purge_orig_ref(bat_priv);
+ batadv_purge_outstanding_packets(bat_priv, hard_iface);
dev_put(hard_iface->soft_iface);
/* nobody uses this interface anymore */
if (!bat_priv->num_ifaces)
- softif_destroy(hard_iface->soft_iface);
+ batadv_softif_destroy(hard_iface->soft_iface);
hard_iface->soft_iface = NULL;
- hardif_free_ref(hard_iface);
+ batadv_hardif_free_ref(hard_iface);
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
}
-static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
+static struct hard_iface *
+batadv_hardif_add_interface(struct net_device *net_dev)
{
struct hard_iface *hard_iface;
int ret;
ASSERT_RTNL();
- ret = is_valid_iface(net_dev);
+ ret = batadv_is_valid_iface(net_dev);
if (ret != 1)
goto out;
if (!hard_iface)
goto release_dev;
- ret = sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
+ ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
if (ret)
goto free_if;
/* extra reference for return */
atomic_set(&hard_iface->refcount, 2);
- check_known_mac_addr(hard_iface->net_dev);
- list_add_tail_rcu(&hard_iface->list, &hardif_list);
+ batadv_check_known_mac_addr(hard_iface->net_dev);
+ list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list);
- /**
- * This can't be called via a bat_priv callback because
+ /* This can't be called via a bat_priv callback because
* we have no bat_priv yet.
*/
atomic_set(&hard_iface->seqno, 1);
return NULL;
}
-static void hardif_remove_interface(struct hard_iface *hard_iface)
+static void batadv_hardif_remove_interface(struct hard_iface *hard_iface)
{
ASSERT_RTNL();
/* first deactivate interface */
if (hard_iface->if_status != IF_NOT_IN_USE)
- hardif_disable_interface(hard_iface);
+ batadv_hardif_disable_interface(hard_iface);
if (hard_iface->if_status != IF_NOT_IN_USE)
return;
hard_iface->if_status = IF_TO_BE_REMOVED;
- sysfs_del_hardif(&hard_iface->hardif_obj);
- hardif_free_ref(hard_iface);
+ batadv_sysfs_del_hardif(&hard_iface->hardif_obj);
+ batadv_hardif_free_ref(hard_iface);
}
-void hardif_remove_interfaces(void)
+void batadv_hardif_remove_interfaces(void)
{
struct hard_iface *hard_iface, *hard_iface_tmp;
rtnl_lock();
list_for_each_entry_safe(hard_iface, hard_iface_tmp,
- &hardif_list, list) {
+ &batadv_hardif_list, list) {
list_del_rcu(&hard_iface->list);
- hardif_remove_interface(hard_iface);
+ batadv_hardif_remove_interface(hard_iface);
}
rtnl_unlock();
}
-static int hard_if_event(struct notifier_block *this,
- unsigned long event, void *ptr)
+static int batadv_hard_if_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
{
struct net_device *net_dev = ptr;
- struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
+ struct hard_iface *hard_iface = batadv_hardif_get_by_netdev(net_dev);
struct hard_iface *primary_if = NULL;
struct bat_priv *bat_priv;
if (!hard_iface && event == NETDEV_REGISTER)
- hard_iface = hardif_add_interface(net_dev);
+ hard_iface = batadv_hardif_add_interface(net_dev);
if (!hard_iface)
goto out;
switch (event) {
case NETDEV_UP:
- hardif_activate_interface(hard_iface);
+ batadv_hardif_activate_interface(hard_iface);
break;
case NETDEV_GOING_DOWN:
case NETDEV_DOWN:
- hardif_deactivate_interface(hard_iface);
+ batadv_hardif_deactivate_interface(hard_iface);
break;
case NETDEV_UNREGISTER:
list_del_rcu(&hard_iface->list);
- hardif_remove_interface(hard_iface);
+ batadv_hardif_remove_interface(hard_iface);
break;
case NETDEV_CHANGEMTU:
if (hard_iface->soft_iface)
- update_min_mtu(hard_iface->soft_iface);
+ batadv_update_min_mtu(hard_iface->soft_iface);
break;
case NETDEV_CHANGEADDR:
if (hard_iface->if_status == IF_NOT_IN_USE)
goto hardif_put;
- check_known_mac_addr(hard_iface->net_dev);
+ batadv_check_known_mac_addr(hard_iface->net_dev);
bat_priv = netdev_priv(hard_iface->soft_iface);
bat_priv->bat_algo_ops->bat_iface_update_mac(hard_iface);
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto hardif_put;
if (hard_iface == primary_if)
- primary_if_update_addr(bat_priv, NULL);
+ batadv_primary_if_update_addr(bat_priv, NULL);
break;
default:
break;
}
hardif_put:
- hardif_free_ref(hard_iface);
+ batadv_hardif_free_ref(hard_iface);
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
return NOTIFY_DONE;
}
/* This function returns true if the interface represented by ifindex is a
- * 802.11 wireless device */
-bool is_wifi_iface(int ifindex)
+ * 802.11 wireless device
+ */
+bool batadv_is_wifi_iface(int ifindex)
{
struct net_device *net_device = NULL;
bool ret = false;
- if (ifindex == NULL_IFINDEX)
+ if (ifindex == BATADV_NULL_IFINDEX)
goto out;
net_device = dev_get_by_index(&init_net, ifindex);
#ifdef CONFIG_WIRELESS_EXT
/* pre-cfg80211 drivers have to implement WEXT, so it is possible to
- * check for wireless_handlers != NULL */
+ * check for wireless_handlers != NULL
+ */
if (net_device->wireless_handlers)
ret = true;
else
return ret;
}
-struct notifier_block hard_if_notifier = {
- .notifier_call = hard_if_event,
+struct notifier_block batadv_hard_if_notifier = {
+ .notifier_call = batadv_hard_if_event,
};
projects / firefly-linux-kernel-4.4.55.git / blobdiff