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authorMichael Braun <michael-dev@fami-braun.de>2016-10-10 19:12:22 +0200
committerJohannes Berg <johannes.berg@intel.com>2016-10-27 16:03:27 +0200
commitce0ce13a1c89ff8b94b7f8fb32eb4c43e111c82e (patch)
treecaa13d6ec3e5afd7e617030042e6b513a5438fee /include/net/cfg80211.h
parentf3ca52aa52eebdcad0e6fd99586e0068e899caa7 (diff)
downloadop-kernel-dev-ce0ce13a1c89ff8b94b7f8fb32eb4c43e111c82e.zip
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cfg80211: configure multicast to unicast for AP interfaces
Add the ability to configure if an AP (and associated VLANs) will do multicast-to-unicast conversion for ARP, IPv4 and IPv6 frames (possibly within 802.1Q). If enabled, such frames are to be sent to each station separately, with the DA replaced by their own MAC address rather than the group address. Note that this may break certain expectations of the receiver, such as the ability to drop unicast IP packets received within multicast L2 frames, or the ability to not send ICMP destination unreachable messages for packets received in L2 multicast (which is required, but the receiver can't tell the difference if this new option is enabled.) This also doesn't implement the 802.11 DMS (directed multicast service). Signed-off-by: Michael Braun <michael-dev@fami-braun.de> [fix disabling, add better documentation & commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/cfg80211.h')
-rw-r--r--include/net/cfg80211.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 738b4d8..41ae3f5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2742,6 +2742,8 @@ struct cfg80211_nan_func {
* @nan_change_conf: changes NAN configuration. The changed parameters must
* be specified in @changes (using &enum cfg80211_nan_conf_changes);
* All other parameters must be ignored.
+ *
+ * @set_multicast_to_unicast: configure multicast to unicast conversion for BSS
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -3018,6 +3020,10 @@ struct cfg80211_ops {
struct wireless_dev *wdev,
struct cfg80211_nan_conf *conf,
u32 changes);
+
+ int (*set_multicast_to_unicast)(struct wiphy *wiphy,
+ struct net_device *dev,
+ const bool enabled);
};
/*
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