Commit 90703ba9 authored by Johannes Berg's avatar Johannes Berg

wifi: mac80211: prevent 4-addr use on MLDs

We haven't tried this yet, and it's not very likely to
work well right now, so for now disable 4-addr use on
interfaces that are MLDs.
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161143.f2e4cc2efaa1.I5924e8fb44a2d098b676f5711b36bbc1b1bd68e2@changeidSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent ae960ee9
......@@ -226,6 +226,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
if (params->use_4addr == ifmgd->use_4addr)
return 0;
/* FIXME: no support for 4-addr MLO yet */
if (sdata->vif.valid_links)
return -EOPNOTSUPP;
sdata->u.mgd.use_4addr = params->use_4addr;
if (!ifmgd->associated)
return 0;
......@@ -4697,6 +4701,9 @@ static int ieee80211_add_intf_link(struct wiphy *wiphy,
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (wdev->use_4addr)
return -EOPNOTSUPP;
return ieee80211_vif_set_links(sdata, wdev->valid_links);
}
......
......@@ -6894,6 +6894,10 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
}
}
/* FIXME: no support for 4-addr MLO yet */
if (sdata->u.mgd.use_4addr && req->link_id >= 0)
return -EOPNOTSUPP;
assoc_data = kzalloc(size, GFP_KERNEL);
if (!assoc_data)
return -ENOMEM;
......
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