Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dabeb344f54ab780d152714c18f1cb6b21c471a1
Commit: dabeb344f54ab780d152714c18f1cb6b21c471a1
Parent: 9859a79023d71dd4e56c195a345abc4112abfd02
Author: Johannes Berg <[EMAIL PROTECTED]>
AuthorDate: Fri Nov 9 01:57:29 2007 +0100
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 14:54:37 2008 -0800
mac80211: provide interface iterator for drivers
Sometimes drivers need to know which interfaces are associated with
their hardware. Rather than forcing those drivers to keep track of
the interfaces that were added, this adds an iteration function to
mac80211.
As it is intended to be used from the interface add/remove callbacks,
the iteration function may currently only be called under RTNL.
Signed-off-by: Johannes Berg <[EMAIL PROTECTED]>
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
include/net/mac80211.h | 16 ++++++++++++++++
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 17b6039..1470e1b 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 5a0564e..88f262b 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);
-
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