cfg80211: add ability to override VHT capabilities
For testing it's sometimes useful to be able to
override certain VHT capability advertisement,
add the ability to do that in cfg80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0e51767..6a5893f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -371,6 +371,10 @@
[NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
[NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
[NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
+ [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
+ [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
+ .len = NL80211_VHT_CAPABILITY_LEN,
+ },
};
/* policy for the key attributes */
@@ -1522,6 +1526,12 @@
dev->wiphy.extended_capabilities_mask)))
goto nla_put_failure;
+ if (dev->wiphy.vht_capa_mod_mask &&
+ nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
+ sizeof(*dev->wiphy.vht_capa_mod_mask),
+ dev->wiphy.vht_capa_mod_mask))
+ goto nla_put_failure;
+
/* done */
*split_start = 0;
break;
@@ -5982,6 +5992,8 @@
u32 flags = 0;
struct ieee80211_ht_cap *ht_capa = NULL;
struct ieee80211_ht_cap *ht_capa_mask = NULL;
+ struct ieee80211_vht_cap *vht_capa = NULL;
+ struct ieee80211_vht_cap *vht_capa_mask = NULL;
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
return -EINVAL;
@@ -6038,12 +6050,25 @@
ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
}
+ if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
+ flags |= ASSOC_REQ_DISABLE_VHT;
+
+ if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
+ vht_capa_mask =
+ nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]);
+
+ if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
+ if (!vht_capa_mask)
+ return -EINVAL;
+ vht_capa = nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
+ }
+
err = nl80211_crypto_settings(rdev, info, &crypto, 1);
if (!err)
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
ssid, ssid_len, ie, ie_len, use_mfp,
- &crypto, flags, ht_capa,
- ht_capa_mask);
+ &crypto, flags, ht_capa, ht_capa_mask,
+ vht_capa, vht_capa_mask);
return err;
}
@@ -6623,6 +6648,24 @@
sizeof(connect.ht_capa));
}
+ if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
+ connect.flags |= ASSOC_REQ_DISABLE_VHT;
+
+ if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
+ memcpy(&connect.vht_capa_mask,
+ nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
+ sizeof(connect.vht_capa_mask));
+
+ if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
+ if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
+ kfree(connkeys);
+ return -EINVAL;
+ }
+ memcpy(&connect.vht_capa,
+ nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
+ sizeof(connect.vht_capa));
+ }
+
err = cfg80211_connect(rdev, dev, &connect, connkeys);
if (err)
kfree(connkeys);