diff options
| -rw-r--r-- | include/net/mac80211.h | 16 | ||||
| -rw-r--r-- | net/mac80211/util.c | 33 |
2 files changed, 49 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 17b60391fcd..1470e1b886f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1406,4 +1406,20 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw); */ void ieee80211_scan_completed(struct ieee80211_hw *hw); +/** + * ieee80211_iterate_active_interfaces - iterate active interfaces + * + * This function iterates over the interfaces associated with a given + * hardware that are currently active and calls the callback for them. + * Must be called under RTNL. + * + * @hw: the hardware struct of which the interfaces should be iterated over + * @iterator: the iterator function to call + * @data: first argument of the iterator function + */ +void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, + void (*iterator)(void *data, u8 *mac, + int if_id), + void *data); + #endif /* MAC80211_H */ diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 5a0564e1dbd..88f262baaa5 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -22,6 +22,7 @@ #include <linux/bitmap.h> #include <net/net_namespace.h> #include <net/cfg80211.h> +#include <net/rtnetlink.h> #include "ieee80211_i.h" #include "ieee80211_rate.h" @@ -484,3 +485,35 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw) ieee80211_wake_queue(hw, i); } EXPORT_SYMBOL(ieee80211_wake_queues); + +void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, + void (*iterator)(void *data, u8 *mac, + int if_id), + void *data) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; + + ASSERT_RTNL(); + + /* we hold the RTNL here so can safely walk the list */ + list_for_each_entry(sdata, &local->interfaces, list) { + switch (sdata->type) { + case IEEE80211_IF_TYPE_INVALID: + case IEEE80211_IF_TYPE_MNTR: + case IEEE80211_IF_TYPE_VLAN: + continue; + case IEEE80211_IF_TYPE_AP: + case IEEE80211_IF_TYPE_STA: + case IEEE80211_IF_TYPE_IBSS: + case IEEE80211_IF_TYPE_WDS: + break; + } + if (sdata->dev == local->mdev) + continue; + if (netif_running(sdata->dev)) + iterator(data, sdata->dev->dev_addr, + sdata->dev->ifindex); + } +} +EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); |