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Diffstat (limited to 'net/batman-adv/distributed-arp-table.c')
-rw-r--r--net/batman-adv/distributed-arp-table.c40
1 files changed, 17 insertions, 23 deletions
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 310a4f353008..b0af3a11d406 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -2,18 +2,6 @@
/* Copyright (C) 2011-2019 B.A.T.M.A.N. contributors:
*
* Antonio Quartulli
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "distributed-arp-table.h"
@@ -667,7 +655,7 @@ batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst,
}
/**
- * batadv_dat_send_data() - send a payload to the selected candidates
+ * batadv_dat_forward_data() - copy and send payload to the selected candidates
* @bat_priv: the bat priv with all the soft interface information
* @skb: payload to send
* @ip: the DHT key
@@ -680,9 +668,9 @@ batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst,
* Return: true if the packet is sent to at least one candidate, false
* otherwise.
*/
-static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
- struct sk_buff *skb, __be32 ip,
- unsigned short vid, int packet_subtype)
+static bool batadv_dat_forward_data(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, __be32 ip,
+ unsigned short vid, int packet_subtype)
{
int i;
bool ret = false;
@@ -1277,8 +1265,8 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
ret = true;
} else {
/* Send the request to the DHT */
- ret = batadv_dat_send_data(bat_priv, skb, ip_dst, vid,
- BATADV_P_DAT_DHT_GET);
+ ret = batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+ BATADV_P_DAT_DHT_GET);
}
out:
if (dat_entry)
@@ -1392,8 +1380,10 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
/* Send the ARP reply to the candidates for both the IP addresses that
* the node obtained from the ARP reply
*/
- batadv_dat_send_data(bat_priv, skb, ip_src, vid, BATADV_P_DAT_DHT_PUT);
- batadv_dat_send_data(bat_priv, skb, ip_dst, vid, BATADV_P_DAT_DHT_PUT);
+ batadv_dat_forward_data(bat_priv, skb, ip_src, vid,
+ BATADV_P_DAT_DHT_PUT);
+ batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+ BATADV_P_DAT_DHT_PUT);
}
/**
@@ -1444,7 +1434,6 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
hw_src, &ip_src, hw_dst, &ip_dst,
dat_entry->mac_addr, &dat_entry->ip);
dropped = true;
- goto out;
}
/* Update our internal cache with both the IP addresses the node got
@@ -1453,6 +1442,9 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
+ if (dropped)
+ goto out;
+
/* If BLA is enabled, only forward ARP replies if we have claimed the
* source of the ARP reply or if no one else of the same backbone has
* already claimed that client. This prevents that different gateways
@@ -1708,8 +1700,10 @@ static void batadv_dat_put_dhcp(struct batadv_priv *bat_priv, u8 *chaddr,
batadv_dat_entry_add(bat_priv, yiaddr, chaddr, vid);
batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
- batadv_dat_send_data(bat_priv, skb, yiaddr, vid, BATADV_P_DAT_DHT_PUT);
- batadv_dat_send_data(bat_priv, skb, ip_dst, vid, BATADV_P_DAT_DHT_PUT);
+ batadv_dat_forward_data(bat_priv, skb, yiaddr, vid,
+ BATADV_P_DAT_DHT_PUT);
+ batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+ BATADV_P_DAT_DHT_PUT);
consume_skb(skb);