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Diffstat (limited to 'kernel/net/batman-adv/routing.c')
-rw-r--r--kernel/net/batman-adv/routing.c81
1 files changed, 54 insertions, 27 deletions
diff --git a/kernel/net/batman-adv/routing.c b/kernel/net/batman-adv/routing.c
index da83982bf..3207667e6 100644
--- a/kernel/net/batman-adv/routing.c
+++ b/kernel/net/batman-adv/routing.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2014 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2007-2015 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
@@ -15,20 +15,36 @@
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#include "main.h"
#include "routing.h"
-#include "send.h"
-#include "soft-interface.h"
-#include "hard-interface.h"
-#include "icmp_socket.h"
-#include "translation-table.h"
-#include "originator.h"
+#include "main.h"
+
+#include <linux/atomic.h>
+#include <linux/byteorder/generic.h>
+#include <linux/compiler.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/jiffies.h>
+#include <linux/netdevice.h>
+#include <linux/printk.h>
+#include <linux/rculist.h>
+#include <linux/rcupdate.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/stddef.h>
+
+#include "bitarray.h"
#include "bridge_loop_avoidance.h"
#include "distributed-arp-table.h"
-#include "network-coding.h"
#include "fragmentation.h"
-
-#include <linux/if_vlan.h>
+#include "hard-interface.h"
+#include "icmp_socket.h"
+#include "network-coding.h"
+#include "originator.h"
+#include "packet.h"
+#include "send.h"
+#include "soft-interface.h"
+#include "translation-table.h"
static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
@@ -129,7 +145,7 @@ out:
* 0 if the packet is to be accepted
* 1 if the packet is to be ignored.
*/
-int batadv_window_protected(struct batadv_priv *bat_priv, int32_t seq_num_diff,
+int batadv_window_protected(struct batadv_priv *bat_priv, s32 seq_num_diff,
unsigned long *last_reset)
{
if (seq_num_diff <= -BATADV_TQ_LOCAL_WINDOW_SIZE ||
@@ -637,19 +653,19 @@ out:
static bool
batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
struct batadv_unicast_packet *unicast_packet,
- uint8_t *dst_addr, unsigned short vid)
+ u8 *dst_addr, unsigned short vid)
{
struct batadv_orig_node *orig_node = NULL;
struct batadv_hard_iface *primary_if = NULL;
bool ret = false;
- uint8_t *orig_addr, orig_ttvn;
+ u8 *orig_addr, orig_ttvn;
if (batadv_is_my_client(bat_priv, dst_addr, vid)) {
primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
orig_addr = primary_if->net_dev->dev_addr;
- orig_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
+ orig_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
} else {
orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr,
vid);
@@ -660,7 +676,7 @@ batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
goto out;
orig_addr = orig_node->orig;
- orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+ orig_ttvn = (u8)atomic_read(&orig_node->last_ttvn);
}
/* update the packet header */
@@ -682,7 +698,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
struct batadv_unicast_packet *unicast_packet;
struct batadv_hard_iface *primary_if;
struct batadv_orig_node *orig_node;
- uint8_t curr_ttvn, old_ttvn;
+ u8 curr_ttvn, old_ttvn;
struct ethhdr *ethhdr;
unsigned short vid;
int is_old_ttvn;
@@ -724,7 +740,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
* value is used later to check if the node which sent (or re-routed
* last time) the packet had an updated information or not
*/
- curr_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
+ curr_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
if (!batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
orig_node = batadv_orig_hash_find(bat_priv,
unicast_packet->dest);
@@ -735,7 +751,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
if (!orig_node)
return 0;
- curr_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+ curr_ttvn = (u8)atomic_read(&orig_node->last_ttvn);
batadv_orig_node_free_ref(orig_node);
}
@@ -817,9 +833,10 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
struct batadv_unicast_packet *unicast_packet;
struct batadv_unicast_4addr_packet *unicast_4addr_packet;
- uint8_t *orig_addr;
+ u8 *orig_addr;
struct batadv_orig_node *orig_node = NULL;
int check, hdr_size = sizeof(*unicast_packet);
+ enum batadv_subtype subtype;
bool is4addr;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
@@ -847,10 +864,20 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
/* packet for me */
if (batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
if (is4addr) {
- batadv_dat_inc_counter(bat_priv,
- unicast_4addr_packet->subtype);
- orig_addr = unicast_4addr_packet->src;
- orig_node = batadv_orig_hash_find(bat_priv, orig_addr);
+ subtype = unicast_4addr_packet->subtype;
+ batadv_dat_inc_counter(bat_priv, subtype);
+
+ /* Only payload data should be considered for speedy
+ * join. For example, DAT also uses unicast 4addr
+ * types, but those packets should not be considered
+ * for speedy join, since the clients do not actually
+ * reside at the sending originator.
+ */
+ if (subtype == BATADV_P_DATA) {
+ orig_addr = unicast_4addr_packet->src;
+ orig_node = batadv_orig_hash_find(bat_priv,
+ orig_addr);
+ }
}
if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb,
@@ -888,7 +915,7 @@ int batadv_recv_unicast_tvlv(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
struct batadv_unicast_tvlv_packet *unicast_tvlv_packet;
unsigned char *tvlv_buff;
- uint16_t tvlv_buff_len;
+ u16 tvlv_buff_len;
int hdr_size = sizeof(*unicast_tvlv_packet);
int ret = NET_RX_DROP;
@@ -991,8 +1018,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
struct ethhdr *ethhdr;
int hdr_size = sizeof(*bcast_packet);
int ret = NET_RX_DROP;
- int32_t seq_diff;
- uint32_t seqno;
+ s32 seq_diff;
+ u32 seqno;
/* drop packet if it has not necessary minimum size */
if (unlikely(!pskb_may_pull(skb, hdr_size)))