Sven Eckelmann abe59c6522 batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node ... The batadv_neigh_node was specific to a batadv_hardif_neigh_node and held an implicit reference to it. But this reference was never stored in form of a pointer in the batadv_neigh_node itself. Instead batadv_neigh_node_release depends on a consistent state of hard_iface->neigh_list and that batadv_hardif_neigh_get always returns the batadv_hardif_neigh_node object which it has a reference for. But batadv_hardif_neigh_get cannot guarantee that because it is working only with rcu_read_lock on this list. It can therefore happen that a neigh_addr is in this list twice or that batadv_hardif_neigh_get cannot find the batadv_hardif_neigh_node for an neigh_addr due to some other list operations taking place at the same time. Instead add a batadv_hardif_neigh_node pointer directly in batadv_neigh_node which will be used for the reference counter decremented on release of batadv_neigh_node. Fixes: cef63419f7 ("batman-adv: add list of unique single hop neighbors per hard-interface") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>		2016-04-29 19:46:11 +08:00
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Kconfig	batman-adv: clarify CFG80211 dependency	2016-03-02 13:45:47 -05:00
Makefile	batman-adv: OGMv2 - add basic infrastructure	2016-02-29 16:05:31 +08:00
bat_algo.h	batman-adv: OGMv2 - add basic infrastructure	2016-02-29 16:05:31 +08:00
bat_iv_ogm.c	batman-adv: keep track of when unicast packets are sent	2016-02-29 16:05:32 +08:00
bat_v.c	batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP event	2016-04-29 19:46:11 +08:00
bat_v_elp.c	batman-adv: ELP - send unicast ELP packets for throughput sampling	2016-02-29 16:25:07 +08:00
bat_v_elp.h	batman-adv: ELP - compute the metric based on the estimated throughput	2016-02-29 16:25:06 +08:00
bat_v_ogm.c	batman-adv: ELP - compute the metric based on the estimated throughput	2016-02-29 16:25:06 +08:00
bat_v_ogm.h	batman-adv: OGMv2 - implement originators logic	2016-02-29 16:05:31 +08:00
bitarray.c	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
bitarray.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
bridge_loop_avoidance.c	batman-adv: Rename batadv_claim *_free_ref function to *_put	2016-02-23 13:48:27 +08:00
bridge_loop_avoidance.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
debugfs.c	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
debugfs.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
distributed-arp-table.c	batman-adv: fix DAT candidate selection (must use vid)	2016-04-29 19:46:10 +08:00
distributed-arp-table.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
fragmentation.c	batman-adv: keep track of when unicast packets are sent	2016-02-29 16:05:32 +08:00
fragmentation.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
gateway_client.c	batman-adv: Rename batadv_gw_node *_free_ref function to *_put	2016-02-23 13:49:06 +08:00
gateway_client.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
gateway_common.c	batman-adv: add throughput override attribute to hard_ifaces	2016-02-29 16:05:32 +08:00
gateway_common.h	batman-adv: add throughput override attribute to hard_ifaces	2016-02-29 16:05:32 +08:00
hard-interface.c	batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP event	2016-04-29 19:46:11 +08:00
hard-interface.h	batman-adv: Rename batadv_hardif *_free_ref function to *_put	2016-02-23 13:48:24 +08:00
hash.c	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
hash.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
icmp_socket.c	batman-adv: keep track of when unicast packets are sent	2016-02-29 16:05:32 +08:00
icmp_socket.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
main.c	batman-adv: OGMv2 - add basic infrastructure	2016-02-29 16:05:31 +08:00
main.h	batman-adv: Start new development cycle	2016-02-29 16:25:08 +08:00
multicast.c	batman-adv: Convert batadv_orig_node to kref	2016-02-10 23:24:06 +08:00
multicast.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
network-coding.c	batman-adv: keep track of when unicast packets are sent	2016-02-29 16:05:32 +08:00
network-coding.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
originator.c	batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node	2016-04-29 19:46:11 +08:00
originator.h	batman-adv: Rename batadv_orig_node_vlan *_free_ref function to *_put	2016-02-23 13:50:58 +08:00
packet.h	batman-adv: OGMv2 - add basic infrastructure	2016-02-29 16:05:31 +08:00
routing.c	batman-adv: Reduce refcnt of removed router when updating route	2016-04-24 15:41:25 +08:00
routing.h	batman-adv: add seqno maximum age and protection start flag parameters	2016-02-10 23:23:57 +08:00
send.c	batman-adv: Fix broadcast/ogm queue limit on a removed interface	2016-04-24 15:41:56 +08:00
send.h	batman-adv: keep track of when unicast packets are sent	2016-02-29 16:05:32 +08:00
soft-interface.c	batman-adv: Check skb size before using encapsulated ETH+VLAN header	2016-04-24 15:37:21 +08:00
soft-interface.h	batman-adv: Rename batadv_softif_vlan *_free_ref function to *_put	2016-02-23 13:49:10 +08:00
sysfs.c	batman-adv: add throughput override attribute to hard_ifaces	2016-02-29 16:05:32 +08:00
sysfs.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
translation-table.c	batman-adv: Fix reference counting of vlan object for tt_local_entry	2016-04-29 19:46:11 +08:00
translation-table.h	batman-adv: update copyright years for 2016	2016-02-02 12:55:10 +08:00
types.h	batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node	2016-04-29 19:46:11 +08:00