From f019981aee20f53d29ee1079973e609517d6d7e6 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Tue, 14 Apr 2009 15:15:33 +0300
Subject: [PATCH] nl82011: Use common code for setting channel

---
 src/drivers/driver_nl80211.c |  102 +++++++++++++++++-------------------------
 1 file changed, 42 insertions(+), 60 deletions(-)

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 2c20293..5993c97 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2100,27 +2100,10 @@ static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
 	return -ENOBUFS;
 }
 
-#endif /* CONFIG_AP || HOSTAPD */
-
-
-#ifdef CONFIG_AP
-
-static int wpa_driver_nl80211_set_beacon(void *priv,
-					 const u8 *head, size_t head_len,
-					 const u8 *tail, size_t tail_len,
-					 int dtim_period)
-{
-	struct wpa_driver_nl80211_data *drv = priv;
-	return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
-						   head, head_len,
-						   tail, tail_len,
-						   dtim_period);
-}
-
 
-static int wpa_driver_nl80211_set_freq2(
-	struct wpa_driver_nl80211_data *drv,
-	struct wpa_driver_associate_params *params)
+static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
+				       int freq, int ht_enabled,
+				       int sec_channel_offset)
 {
 	struct nl_msg *msg;
 	int ret;
@@ -2133,18 +2116,50 @@ static int wpa_driver_nl80211_set_freq2(
 		    NL80211_CMD_SET_WIPHY, 0);
 
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
-
-	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+	if (ht_enabled) {
+		switch (sec_channel_offset) {
+		case -1:
+			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+				    NL80211_CHAN_HT40MINUS);
+			break;
+		case 1:
+			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+				    NL80211_CHAN_HT40PLUS);
+			break;
+		default:
+			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+				    NL80211_CHAN_HT20);
+			break;
+		}
+	}
 
 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 	if (ret == 0)
 		return 0;
-	wpa_printf(MSG_DEBUG, "nl80211: MLME Failed to set channel (freq=%d): "
-		   "%d (%s)", params->freq, ret, strerror(-ret));
+	wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
+		   "%d (%s)", freq, ret, strerror(-ret));
 nla_put_failure:
 	return -1;
 }
 
+#endif /* CONFIG_AP || HOSTAPD */
+
+
+#ifdef CONFIG_AP
+
+static int wpa_driver_nl80211_set_beacon(void *priv,
+					 const u8 *head, size_t head_len,
+					 const u8 *tail, size_t tail_len,
+					 int dtim_period)
+{
+	struct wpa_driver_nl80211_data *drv = priv;
+	return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
+						   head, head_len,
+						   tail, tail_len,
+						   dtim_period);
+}
+
 #endif /* CONFIG_AP */
 
 #if defined(CONFIG_AP) || defined(HOSTAPD)
@@ -2693,7 +2708,7 @@ static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
 		return -1;
 
 	if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
-	    wpa_driver_nl80211_set_freq2(drv, params)) {
+	    wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
 		nl80211_remove_iface(drv, drv->monitor_ifidx);
 		drv->monitor_ifidx = -1;
 		return -1;
@@ -3057,41 +3072,8 @@ static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
 {
 	struct wpa_driver_nl80211_data *drv = priv;
-	struct nl_msg *msg;
-
-	msg = nlmsg_alloc();
-	if (!msg)
-		return -1;
-
-	drv->last_freq = freq->freq;
-	drv->last_freq_ht = freq->ht_enabled;
-
-	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
-		    NL80211_CMD_SET_WIPHY, 0);
-
-	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
-	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
-	if (freq->ht_enabled) {
-		switch (freq->sec_channel_offset) {
-		case -1:
-			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
-				    NL80211_CHAN_HT40MINUS);
-			break;
-		case 1:
-			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
-				    NL80211_CHAN_HT40PLUS);
-			break;
-		default:
-			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
-				    NL80211_CHAN_HT20);
-			break;
-		}
-	}
-
-	if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
-		return 0;
- nla_put_failure:
-	return -1;
+	return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
+					   freq->sec_channel_offset);
 }
 
 
-- 
1.7.9.5