[PATCH] hostap update

Added support for setting channel mask for scan requests
('iwpriv wlan0 scan_channels 0x00ff' masks scans to use channels 1-8).

Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index e545ac9c1b10..4c236e7903f5 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -1664,7 +1664,8 @@ static int prism2_request_hostscan(struct net_device *dev,
         local = iface->local;
 
         memset(&scan_req, 0, sizeof(scan_req));
-        scan_req.channel_list = __constant_cpu_to_le16(local->channel_mask);
+        scan_req.channel_list = cpu_to_le16(local->channel_mask &
+                                            local->scan_channel_mask);
         scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS);
         if (ssid) {
                 if (ssid_len > 32)
@@ -1693,7 +1694,8 @@ static int prism2_request_scan(struct net_device *dev)
         local = iface->local;
 
         memset(&scan_req, 0, sizeof(scan_req));
-        scan_req.channel_list = __constant_cpu_to_le16(local->channel_mask);
+        scan_req.channel_list = cpu_to_le16(local->channel_mask &
+                                            local->scan_channel_mask);
         scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS);
 
         /* FIX:
@@ -2338,6 +2340,10 @@ static const struct iw_priv_args prism2_priv[] = {
           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "drop_unencrypte" },
         { PRISM2_PARAM_DROP_UNENCRYPTED,
           0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdrop_unencry" },
+        { PRISM2_PARAM_SCAN_CHANNEL_MASK,
+          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "scan_channels" },
+        { PRISM2_PARAM_SCAN_CHANNEL_MASK,
+          0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getscan_channel" },
 };
 
 
@@ -2699,6 +2705,10 @@ static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
                 local->drop_unencrypted = value;
                 break;
 
+        case PRISM2_PARAM_SCAN_CHANNEL_MASK:
+                local->scan_channel_mask = value;
+                break;
+
         default:
                 printk(KERN_DEBUG "%s: prism2_param: unknown param %d\n",
                        dev->name, param);
@@ -2890,6 +2900,10 @@ static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
                 *param = local->drop_unencrypted;
                 break;
 
+        case PRISM2_PARAM_SCAN_CHANNEL_MASK:
+                *param = local->scan_channel_mask;
+                break;
+
         default:
                 printk(KERN_DEBUG "%s: get_prism2_param: unknown param %d\n",
                        dev->name, *param);