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Commit fe1abafd authored by Johannes Berg's avatar Johannes Berg
Browse files

nl80211: re-add channel width and extended capa advertising 



Add back the channel width and extended capability data
to wiphy information if split information is supported.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent b8a31c9a

net/wireless/nl80211.c

+33 −3
Original line number Diff line number Diff line
@@ -573,6 +573,21 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, 
		}

	}



	if (large) {

		if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&

		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))

			goto nla_put_failure;

		if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&

		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))

			goto nla_put_failure;

		if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&

		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))

			goto nla_put_failure;

		if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&

		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))

			goto nla_put_failure;

	}



	if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,

			DBM_TO_MBM(chan->max_power)))

		goto nla_put_failure;
@@ -1137,6 +1152,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, 
	const struct ieee80211_txrx_stypes *mgmt_stypes =

				dev->wiphy.mgmt_stypes;

	long start = 0, start_chan = 0, start_band = 0;

	u32 features;



	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);

	if (!hdr)
@@ -1461,8 +1477,15 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, 
				dev->wiphy.ap_sme_capa))

			goto nla_put_failure;



		if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,

				dev->wiphy.features))

		features = dev->wiphy.features;

		/*

		 * We can only add the per-channel limit information if the

		 * dump is split, otherwise it makes it too big. Therefore

		 * only advertise it in that case.

		 */

		if (split)

			features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;

		if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))

			goto nla_put_failure;



		if (dev->wiphy.ht_capa_mod_mask &&
@@ -1490,7 +1513,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, 
		(*split_start)++;

		break;

	case 9:

		/* placeholder */

		if (dev->wiphy.extended_capabilities &&

		    (nla_put(msg, NL80211_ATTR_EXT_CAPA,

			     dev->wiphy.extended_capabilities_len,

			     dev->wiphy.extended_capabilities) ||

		     nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,

			     dev->wiphy.extended_capabilities_len,

			     dev->wiphy.extended_capabilities_mask)))

			goto nla_put_failure;



		/* done */

		*split_start = 0;