Add support for specifying subset of enabled frequencies to scan

[libeap.git] / src / drivers / driver_nl80211.c

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index a2f0fc7..4a286b5 100644 (file)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -1596,14 +1596,16 @@ static int wpa_driver_nl80211_scan(void *priv,
 {
        struct wpa_driver_nl80211_data *drv = priv;
        int ret = 0, timeout;
-       struct nl_msg *msg, *ssids;
+       struct nl_msg *msg, *ssids, *freqs;
        size_t i;
 
        msg = nlmsg_alloc();
        ssids = nlmsg_alloc();
-       if (!msg || !ssids) {
+       freqs = nlmsg_alloc();
+       if (!msg || !ssids || !freqs) {
                nlmsg_free(msg);
                nlmsg_free(ssids);
+               nlmsg_free(freqs);
                return -1;
        }
 
@@ -1624,6 +1626,12 @@ static int wpa_driver_nl80211_scan(void *priv,
                        params->extra_ies);
        }
 
+       if (params->freqs) {
+               for (i = 0; params->freqs[i]; i++)
+                       NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
+               nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
+       }
+
        ret = send_and_recv_msgs(drv, msg, NULL, NULL);
        msg = NULL;
        if (ret) {
@@ -1652,6 +1660,7 @@ static int wpa_driver_nl80211_scan(void *priv,
 nla_put_failure:
        nlmsg_free(ssids);
        nlmsg_free(msg);
+       nlmsg_free(freqs);
        return ret;
 }