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Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c64
1 files changed, 19 insertions, 45 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index b27a4d7..2f0bd3f 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -34,35 +34,6 @@
static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
-void batadv_slide_own_bcast_window(struct batadv_hard_iface *hard_iface)
-{
- struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
- struct batadv_hashtable *hash = bat_priv->orig_hash;
- struct hlist_head *head;
- struct batadv_orig_node *orig_node;
- unsigned long *word;
- uint32_t i;
- size_t word_index;
- uint8_t *w;
-
- for (i = 0; i < hash->size; i++) {
- head = &hash->table[i];
-
- rcu_read_lock();
- hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
- spin_lock_bh(&orig_node->ogm_cnt_lock);
- word_index = hard_iface->if_num * BATADV_NUM_WORDS;
- word = &(orig_node->bcast_own[word_index]);
-
- batadv_bit_get_packet(bat_priv, word, 1, 0);
- w = &orig_node->bcast_own_sum[hard_iface->if_num];
- *w = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE);
- spin_unlock_bh(&orig_node->ogm_cnt_lock);
- }
- rcu_read_unlock();
- }
-}
-
static void _batadv_update_route(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
struct batadv_neigh_node *neigh_node)
@@ -256,7 +227,7 @@ bool batadv_check_management_packet(struct sk_buff *skb,
if (unlikely(!pskb_may_pull(skb, header_len)))
return false;
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ ethhdr = eth_hdr(skb);
/* packet with broadcast indication but unicast recipient */
if (!is_broadcast_ether_addr(ethhdr->h_dest))
@@ -314,7 +285,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
icmp_packet->msg_type = BATADV_ECHO_REPLY;
icmp_packet->header.ttl = BATADV_TTL;
- if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+ if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
ret = NET_RX_SUCCESS;
out:
@@ -362,7 +333,7 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
icmp_packet->msg_type = BATADV_TTL_EXCEEDED;
icmp_packet->header.ttl = BATADV_TTL;
- if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+ if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
ret = NET_RX_SUCCESS;
out:
@@ -392,7 +363,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
if (unlikely(!pskb_may_pull(skb, hdr_size)))
goto out;
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ ethhdr = eth_hdr(skb);
/* packet with unicast indication but broadcast recipient */
if (is_broadcast_ether_addr(ethhdr->h_dest))
@@ -439,7 +410,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
icmp_packet->header.ttl--;
/* route it */
- if (batadv_send_skb_to_orig(skb, orig_node, recv_if))
+ if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP)
ret = NET_RX_SUCCESS;
out:
@@ -569,7 +540,7 @@ static int batadv_check_unicast_packet(struct batadv_priv *bat_priv,
if (unlikely(!pskb_may_pull(skb, hdr_size)))
return -ENODATA;
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ ethhdr = eth_hdr(skb);
/* packet with unicast indication but broadcast recipient */
if (is_broadcast_ether_addr(ethhdr->h_dest))
@@ -803,8 +774,8 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_orig_node *orig_node = NULL;
struct batadv_neigh_node *neigh_node = NULL;
struct batadv_unicast_packet *unicast_packet;
- struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
- int ret = NET_RX_DROP;
+ struct ethhdr *ethhdr = eth_hdr(skb);
+ int res, ret = NET_RX_DROP;
struct sk_buff *new_skb;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
@@ -864,16 +835,19 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
/* decrement ttl */
unicast_packet->header.ttl--;
- /* network code packet if possible */
- if (batadv_nc_skb_forward(skb, neigh_node, ethhdr)) {
- ret = NET_RX_SUCCESS;
- } else if (batadv_send_skb_to_orig(skb, orig_node, recv_if)) {
- ret = NET_RX_SUCCESS;
+ res = batadv_send_skb_to_orig(skb, orig_node, recv_if);
- /* Update stats counter */
+ /* translate transmit result into receive result */
+ if (res == NET_XMIT_SUCCESS) {
+ /* skb was transmitted and consumed */
batadv_inc_counter(bat_priv, BATADV_CNT_FORWARD);
batadv_add_counter(bat_priv, BATADV_CNT_FORWARD_BYTES,
skb->len + ETH_HLEN);
+
+ ret = NET_RX_SUCCESS;
+ } else if (res == NET_XMIT_POLICED) {
+ /* skb was buffered and consumed */
+ ret = NET_RX_SUCCESS;
}
out:
@@ -1165,7 +1139,7 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
if (unlikely(!pskb_may_pull(skb, hdr_size)))
goto out;
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ ethhdr = eth_hdr(skb);
/* packet with broadcast indication but unicast recipient */
if (!is_broadcast_ether_addr(ethhdr->h_dest))
@@ -1265,7 +1239,7 @@ int batadv_recv_vis_packet(struct sk_buff *skb,
return NET_RX_DROP;
vis_packet = (struct batadv_vis_packet *)skb->data;
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ ethhdr = eth_hdr(skb);
/* not for me */
if (!batadv_is_my_mac(bat_priv, ethhdr->h_dest))
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