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Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c85
1 files changed, 37 insertions, 48 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index bc2b88bbea1f..939fc01371df 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -579,32 +579,45 @@ batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
return router;
}
-int batadv_recv_tt_query(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
+static int batadv_check_unicast_packet(struct sk_buff *skb, int hdr_size)
{
- struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
- struct batadv_tt_query_packet *tt_query;
- uint16_t tt_size;
struct ethhdr *ethhdr;
- char tt_flag;
- size_t packet_size;
/* drop packet if it has not necessary minimum size */
- if (unlikely(!pskb_may_pull(skb,
- sizeof(struct batadv_tt_query_packet))))
- goto out;
-
- /* I could need to modify it */
- if (skb_cow(skb, sizeof(struct batadv_tt_query_packet)) < 0)
- goto out;
+ if (unlikely(!pskb_may_pull(skb, hdr_size)))
+ return -1;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* packet with unicast indication but broadcast recipient */
if (is_broadcast_ether_addr(ethhdr->h_dest))
- goto out;
+ return -1;
/* packet with broadcast sender address */
if (is_broadcast_ether_addr(ethhdr->h_source))
+ return -1;
+
+ /* not for me */
+ if (!batadv_is_my_mac(ethhdr->h_dest))
+ return -1;
+
+ return 0;
+}
+
+int batadv_recv_tt_query(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
+{
+ struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+ struct batadv_tt_query_packet *tt_query;
+ uint16_t tt_size;
+ int hdr_size = sizeof(*tt_query);
+ char tt_flag;
+ size_t packet_size;
+
+ if (batadv_check_unicast_packet(skb, hdr_size) < 0)
+ return NET_RX_DROP;
+
+ /* I could need to modify it */
+ if (skb_cow(skb, sizeof(struct batadv_tt_query_packet)) < 0)
goto out;
tt_query = (struct batadv_tt_query_packet *)skb->data;
@@ -721,7 +734,7 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
* been incremented yet. This flag will make me check all the incoming
* packets for the correct destination.
*/
- bat_priv->tt_poss_change = true;
+ bat_priv->tt.poss_change = true;
batadv_orig_node_free_ref(orig_node);
out:
@@ -819,31 +832,6 @@ err:
return NULL;
}
-static int batadv_check_unicast_packet(struct sk_buff *skb, int hdr_size)
-{
- struct ethhdr *ethhdr;
-
- /* drop packet if it has not necessary minimum size */
- if (unlikely(!pskb_may_pull(skb, hdr_size)))
- return -1;
-
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
-
- /* packet with unicast indication but broadcast recipient */
- if (is_broadcast_ether_addr(ethhdr->h_dest))
- return -1;
-
- /* packet with broadcast sender address */
- if (is_broadcast_ether_addr(ethhdr->h_source))
- return -1;
-
- /* not for me */
- if (!batadv_is_my_mac(ethhdr->h_dest))
- return -1;
-
- return 0;
-}
-
static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if)
{
@@ -947,8 +935,8 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
unicast_packet = (struct batadv_unicast_packet *)skb->data;
if (batadv_is_my_mac(unicast_packet->dest)) {
- tt_poss_change = bat_priv->tt_poss_change;
- curr_ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
+ tt_poss_change = bat_priv->tt.poss_change;
+ curr_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
} else {
orig_node = batadv_orig_hash_find(bat_priv,
unicast_packet->dest);
@@ -993,8 +981,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
} else {
memcpy(unicast_packet->dest, orig_node->orig,
ETH_ALEN);
- curr_ttvn = (uint8_t)
- atomic_read(&orig_node->last_ttvn);
+ curr_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
batadv_orig_node_free_ref(orig_node);
}
@@ -1025,8 +1012,9 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
/* packet for me */
if (batadv_is_my_mac(unicast_packet->dest)) {
- batadv_interface_rx(recv_if->soft_iface, skb, recv_if,
- hdr_size);
+ batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,
+ NULL);
+
return NET_RX_SUCCESS;
}
@@ -1063,7 +1051,7 @@ int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
return NET_RX_SUCCESS;
batadv_interface_rx(recv_if->soft_iface, new_skb, recv_if,
- sizeof(struct batadv_unicast_packet));
+ sizeof(struct batadv_unicast_packet), NULL);
return NET_RX_SUCCESS;
}
@@ -1150,7 +1138,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
goto out;
/* broadcast for me */
- batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size);
+ batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,
+ orig_node);
ret = NET_RX_SUCCESS;
goto out;