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9aa5cd79b5
linux-next/net/batman-adv
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Andreas Pape 9aa5cd79b5 batman-adv: prevent duplication of ARP replies when DAT is used 
If none of the backbone gateways in a bla setup has already knowledge of
the mac address searched for in an incoming ARP request from the backbone
an address resolution via the DHT of DAT is started. The gateway can send
several ARP requests to different DHT nodes and therefore can get several
replies. This patch assures that not all of the possible ARP replies are
returned to the backbone by checking the local DAT cache of the gateway.
If there is an entry in the local cache the gateway has already learned
the requested address and there is no need to forward the additional reply
to the backbone.
Furthermore it is checked if this gateway has claimed the source of the ARP
reply and only forwards it to the backbone if it has claimed the source or
if there is no claim at all.

Signed-off-by: Andreas Pape <apape@phoenixcontact.com>
Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
[sven@narfation.org: fix conflicts with current version]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-03-22 10:30:53 +01:00
..
bat_algo.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_algo.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_iv_ogm.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_iv_ogm.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v_elp.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v_elp.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v_ogm.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v_ogm.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bat_v.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bitarray.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bitarray.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
bridge_loop_avoidance.c batman-adv: prevent multiple ARP replies sent by gateways if dat enabled 2017-03-22 10:30:53 +01:00
bridge_loop_avoidance.h batman-adv: prevent multiple ARP replies sent by gateways if dat enabled 2017-03-22 10:30:53 +01:00
debugfs.c batman-adv: Fix includes for IS_ERR/ERR_PTR 2017-01-28 10:40:35 +01:00
debugfs.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
distributed-arp-table.c batman-adv: prevent duplication of ARP replies when DAT is used 2017-03-22 10:30:53 +01:00
distributed-arp-table.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
fragmentation.c Here are two batman-adv bugfixes: 2017-03-02 13:16:08 -08:00
fragmentation.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
gateway_client.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
gateway_client.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
gateway_common.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
gateway_common.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
hard-interface.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
hard-interface.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
hash.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
hash.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
icmp_socket.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
icmp_socket.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
Kconfig batman-adv: Allow selecting BATMAN V if CFG80211 is not built 2016-10-17 16:28:48 +02:00
log.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
log.h batman-adv: Fix possible side-effects in _batadv_dbg 2017-03-16 21:14:52 +01:00
main.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
main.h batman-adv: Convert BATADV_PRINT_VID macro to function 2017-03-16 21:14:53 +01:00
Makefile batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
multicast.c batman-adv: Reduce preprocessor checks in multicast.c 2017-03-16 21:14:50 +01:00
multicast.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
netlink.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
netlink.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
network-coding.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
network-coding.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
originator.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
originator.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
packet.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
routing.c batman-adv: Remove one condition check in batadv_route_unicast_packet 2017-01-26 08:37:01 +01:00
routing.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
send.c batman-adv: Fix double call of dev_queue_xmit 2017-01-28 10:40:35 +01:00
send.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
soft-interface.c batman-adv: Omit unnecessary memset of netdev private data 2017-03-17 12:53:35 +01:00
soft-interface.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
sysfs.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
sysfs.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
tp_meter.c batman-adv: Use __func__ to add function names to messages 2017-03-17 12:53:35 +01:00
tp_meter.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
translation-table.c batman-adv: Convert BATADV_PRINT_VID macro to function 2017-03-16 21:14:53 +01:00
translation-table.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
tvlv.c batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
tvlv.h batman-adv: update copyright years for 2017 2017-01-26 08:34:19 +01:00
types.h average: change to declare precision, not factor 2017-03-02 08:32:46 +01:00