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Diffstat (limited to 'net/batman-adv/soft-interface.c')
-rw-r--r--net/batman-adv/soft-interface.c48
1 files changed, 35 insertions, 13 deletions
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index f82c267e1886..744a59b85e15 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -32,6 +32,7 @@
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
#include <linux/if_vlan.h>
+#include "multicast.h"
#include "bridge_loop_avoidance.h"
#include "network-coding.h"
@@ -111,8 +112,8 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
- memcpy(old_addr, dev->dev_addr, ETH_ALEN);
- memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+ ether_addr_copy(old_addr, dev->dev_addr);
+ ether_addr_copy(dev->dev_addr, addr->sa_data);
/* only modify transtable if it has been initialized before */
if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) {
@@ -170,17 +171,19 @@ static int batadv_interface_tx(struct sk_buff *skb,
unsigned short vid;
uint32_t seqno;
int gw_mode;
+ enum batadv_forw_mode forw_mode;
+ struct batadv_orig_node *mcast_single_orig = NULL;
if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
goto dropped;
soft_iface->trans_start = jiffies;
vid = batadv_get_vid(skb, 0);
- ethhdr = (struct ethhdr *)skb->data;
+ ethhdr = eth_hdr(skb);
switch (ntohs(ethhdr->h_proto)) {
case ETH_P_8021Q:
- vhdr = (struct vlan_ethhdr *)skb->data;
+ vhdr = vlan_eth_hdr(skb);
if (vhdr->h_vlan_encapsulated_proto != ethertype)
break;
@@ -194,7 +197,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
goto dropped;
/* skb->data might have been reallocated by batadv_bla_tx() */
- ethhdr = (struct ethhdr *)skb->data;
+ ethhdr = eth_hdr(skb);
/* Register the client MAC in the transtable */
if (!is_multicast_ether_addr(ethhdr->h_source)) {
@@ -230,7 +233,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
/* skb->data may have been modified by
* batadv_gw_dhcp_recipient_get()
*/
- ethhdr = (struct ethhdr *)skb->data;
+ ethhdr = eth_hdr(skb);
/* if gw_mode is on, broadcast any non-DHCP message.
* All the DHCP packets are going to be sent as unicast
*/
@@ -247,9 +250,19 @@ static int batadv_interface_tx(struct sk_buff *skb,
* directed to a DHCP server
*/
goto dropped;
- }
send:
+ if (do_bcast && !is_broadcast_ether_addr(ethhdr->h_dest)) {
+ forw_mode = batadv_mcast_forw_mode(bat_priv, skb,
+ &mcast_single_orig);
+ if (forw_mode == BATADV_FORW_NONE)
+ goto dropped;
+
+ if (forw_mode == BATADV_FORW_SINGLE)
+ do_bcast = false;
+ }
+ }
+
batadv_skb_set_priority(skb, 0);
/* ethernet packet should be broadcasted */
@@ -279,8 +292,8 @@ send:
/* hw address of first interface is the orig mac because only
* this mac is known throughout the mesh
*/
- memcpy(bcast_packet->orig,
- primary_if->net_dev->dev_addr, ETH_ALEN);
+ ether_addr_copy(bcast_packet->orig,
+ primary_if->net_dev->dev_addr);
/* set broadcast sequence number */
seqno = atomic_inc_return(&bat_priv->bcast_seqno);
@@ -301,6 +314,10 @@ send:
if (ret)
goto dropped;
ret = batadv_send_skb_via_gw(bat_priv, skb, vid);
+ } else if (mcast_single_orig) {
+ ret = batadv_send_skb_unicast(bat_priv, skb,
+ BATADV_UNICAST, 0,
+ mcast_single_orig, vid);
} else {
if (batadv_dat_snoop_outgoing_arp_request(bat_priv,
skb))
@@ -652,10 +669,7 @@ static void batadv_softif_destroy_finish(struct work_struct *work)
}
batadv_sysfs_del_meshif(soft_iface);
-
- rtnl_lock();
- unregister_netdevice(soft_iface);
- rtnl_unlock();
+ unregister_netdev(soft_iface);
}
/**
@@ -692,6 +706,14 @@ static int batadv_softif_init_late(struct net_device *dev)
#ifdef CONFIG_BATMAN_ADV_DAT
atomic_set(&bat_priv->distributed_arp_table, 1);
#endif
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ bat_priv->mcast.flags = BATADV_NO_FLAGS;
+ atomic_set(&bat_priv->multicast_mode, 1);
+ atomic_set(&bat_priv->mcast.num_disabled, 0);
+ atomic_set(&bat_priv->mcast.num_want_all_unsnoopables, 0);
+ atomic_set(&bat_priv->mcast.num_want_all_ipv4, 0);
+ atomic_set(&bat_priv->mcast.num_want_all_ipv6, 0);
+#endif
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);