cfg80211: add bss_type and privacy arguments in cfg80211_get_bss()

802.11ad adds new a network type (PBSS) and changes the capability
field interpretation for the DMG (60G) band.
The same 2 bits that were interpreted as "ESS" and "IBSS" before are
re-used as a 2-bit field with 3 valid values (and 1 reserved). Valid
values are: "IBSS", "PBSS" (new) and "AP".

In order to get the BSS struct for the new PBSS networks, change the
cfg80211_get_bss() function to take a new enum ieee80211_bss_type
argument with the valid network types, as "capa_mask" and "capa_val"
no longer work correctly (the search must be band-aware now.)

The remaining bits in "capa_mask" and "capa_val" are used only for
privacy matching so replace those two with a privacy enum as well.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
[rewrite commit log, tiny fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

6 files changed, 17 insertions, 15 deletions

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index d6d2f0f00caa..d372ebfd933d 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1386,7 +1386,8 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
 	lockdep_assert_held(&ar->conf_mutex);
 
 	bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
-			       info->bssid, NULL, 0, 0, 0);
+			       info->bssid, NULL, 0, IEEE80211_BSS_TYPE_ANY,
+			       IEEE80211_PRIVACY_ANY);
 	if (bss) {
 		const struct cfg80211_bss_ies *ies;
 
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 85da63a67faf..ff7ba5c195c6 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -686,20 +686,21 @@ ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
 {
 	struct ath6kl *ar = vif->ar;
 	struct cfg80211_bss *bss;
-	u16 cap_mask, cap_val;
+	u16 cap_val;
+	enum ieee80211_bss_type bss_type;
 	u8 *ie;
 
 	if (nw_type & ADHOC_NETWORK) {
-		cap_mask = WLAN_CAPABILITY_IBSS;
 		cap_val = WLAN_CAPABILITY_IBSS;
+		bss_type = IEEE80211_BSS_TYPE_IBSS;
 	} else {
-		cap_mask = WLAN_CAPABILITY_ESS;
 		cap_val = WLAN_CAPABILITY_ESS;
+		bss_type = IEEE80211_BSS_TYPE_ESS;
 	}
 
 	bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
 			       vif->ssid, vif->ssid_len,
-			       cap_mask, cap_val);
+			       bss_type, IEEE80211_PRIVACY_ANY);
 	if (bss == NULL) {
 		/*
 		 * Since cfg80211 may not yet know about the BSS,
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 2d5ea21be47e..adfd815e3f7d 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -395,7 +395,7 @@ static int wil_cfg80211_connect(struct wiphy *wiphy,
 
 	bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 			       sme->ssid, sme->ssid_len,
-			       WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+			       IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
 	if (!bss) {
 		wil_err(wil, "Unable to find BSS\n");
 		return -ENOENT;
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
index 4a47c7f8a246..1b58b2e2a538 100644
--- a/drivers/net/wireless/cw1200/sta.c
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -1240,8 +1240,8 @@ static void cw1200_do_join(struct cw1200_common *priv)
 
 	bssid = priv->vif->bss_conf.bssid;
 
-	bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel,
-			bssid, NULL, 0, 0, 0);
+	bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel, bssid, NULL, 0,
+			       IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
 
 	if (!bss && !conf->ibss_joined) {
 		wsm_unlock_tx(priv);
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index a92985a6ea21..1a4d558022d8 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -1356,8 +1356,8 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
 
 	/* Find the BSS we want using available scan results */
 	bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
-		sme->ssid, sme->ssid_len,
-		WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+		sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,
+		IEEE80211_PRIVACY_ANY);
 	if (!bss) {
 		wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
 			  sme->bssid);
@@ -2000,7 +2000,7 @@ static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 	 * bss list is populated already */
 	bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,
 		params->ssid, params->ssid_len,
-		WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
+		IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
 
 	if (bss) {
 		ret = lbs_ibss_join_existing(priv, params, bss);
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 41c8e25df954..a47eb55bb6da 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1954,13 +1954,13 @@ done:
 		if (mode == NL80211_IFTYPE_ADHOC)
 			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
 					       bssid, ssid, ssid_len,
-					       WLAN_CAPABILITY_IBSS,
-					       WLAN_CAPABILITY_IBSS);
+					       IEEE80211_BSS_TYPE_IBSS,
+					       IEEE80211_PRIVACY_ANY);
 		else
 			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
 					       bssid, ssid, ssid_len,
-					       WLAN_CAPABILITY_ESS,
-					       WLAN_CAPABILITY_ESS);
+					       IEEE80211_BSS_TYPE_ESS,
+					       IEEE80211_PRIVACY_ANY);
 
 		if (!bss) {
 			if (is_scanning_required) {