Hello,
batman-adv messages contain TTL value in batman header. So,
1. What is default TTL batman-adv uses?
2. Is it possible to set my own TTL value for each batman-adv packet?
The function batadv_hardif_remove_interfaces was meant to remove all
interfaces which are currently in the list of known (compatible) hardifs
during module unload. But the function unregister_netdevice_notifier is
called in batadv_exit before batadv_hardif_remove_interfaces. This will
trigger NETDEV_UNREGISTER events for all available interfaces and in this
process remove all interfaces from batadv_hardif_list. And
batadv_hardif_remove_interfaces only operated on this (empty) list.
Signed-off-by: Sven Eckelmann <sven(a)narfation.org>
---
net/batman-adv/hard-interface.c | 17 -----------------
net/batman-adv/hard-interface.h | 1 -
net/batman-adv/main.c | 1 -
3 files changed, 19 deletions(-)
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index fa06b51c..f95be90a 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -976,23 +976,6 @@ static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)
batadv_hardif_put(hard_iface);
}
-/**
- * batadv_hardif_remove_interfaces() - Remove all hard interfaces
- */
-void batadv_hardif_remove_interfaces(void)
-{
- struct batadv_hard_iface *hard_iface, *hard_iface_tmp;
-
- rtnl_lock();
- list_for_each_entry_safe(hard_iface, hard_iface_tmp,
- &batadv_hardif_list, list) {
- list_del_rcu(&hard_iface->list);
- batadv_hardif_generation++;
- batadv_hardif_remove_interface(hard_iface);
- }
- rtnl_unlock();
-}
-
/**
* batadv_hard_if_event_softif() - Handle events for soft interfaces
* @event: NETDEV_* event to handle
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index bad2e501..b1855d9d 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -100,7 +100,6 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
struct net *net, const char *iface_name);
void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
enum batadv_hard_if_cleanup autodel);
-void batadv_hardif_remove_interfaces(void);
int batadv_hardif_min_mtu(struct net_device *soft_iface);
void batadv_update_min_mtu(struct net_device *soft_iface);
void batadv_hardif_release(struct kref *ref);
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 519c08c2..70fee9b4 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -137,7 +137,6 @@ static void __exit batadv_exit(void)
batadv_netlink_unregister();
rtnl_link_unregister(&batadv_link_ops);
unregister_netdevice_notifier(&batadv_hard_if_notifier);
- batadv_hardif_remove_interfaces();
flush_workqueue(batadv_event_workqueue);
destroy_workqueue(batadv_event_workqueue);
--
2.20.1
