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authorJohannes Berg <johannes@sipsolutions.net>2009-08-07 18:17:38 +0400
committerJohn W. Linville <linville@tuxdriver.com>2009-08-14 17:13:43 +0400
commitf5ea9120be2e5d5c846243416cfdce01d02f5836 (patch)
treecade27e47a90dde79a523598b96a2ebb50770d2f /net/mac80211/mesh.h
parentf401a6f7ede753e56b84025e7d2db0d5ef560ce6 (diff)
downloadlinux-f5ea9120be2e5d5c846243416cfdce01d02f5836.tar.xz
nl80211: add generation number to all dumps
In order for userspace to be able to figure out whether it obtained a consistent snapshot of data or not when using netlink dumps, we need to have a generation number in each dump message that indicates whether the list has changed or not -- its value is arbitrary. This patch adds such a number to all dumps, this needs some mac80211 involvement to keep track of a generation number to start with when adding/removing mesh paths or stations. The wiphy and netdev lists can be fully handled within cfg80211, of course, but generation numbers need to be stored there as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh.h')
-rw-r--r--net/mac80211/mesh.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 2a2ed182cb7e..ce538814b9bd 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -265,6 +265,8 @@ void mesh_path_discard_frame(struct sk_buff *skb,
void mesh_path_quiesce(struct ieee80211_sub_if_data *sdata);
void mesh_path_restart(struct ieee80211_sub_if_data *sdata);
+extern int mesh_paths_generation;
+
#ifdef CONFIG_MAC80211_MESH
extern int mesh_allocated;