nl80211: Pass probe response data to drivers

Pass probe-response data from usermode via beacon parameters.

Signed-off-by: Guy Eilam <guy@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index be92333..f9261c2 100644 (file)
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1166,6 +1166,10 @@ enum nl80211_commands {
  *     This attribute holds a bitmap of the supported protocols for
  *     offloading (see &enum nl80211_probe_resp_offload_support_attr).
  *
+ * @NL80211_ATTR_PROBE_RESP: Probe Response template data. Contains the entire
+ *     probe-response frame. The DA field in the 802.11 header is zero-ed out,
+ *     to be filled by the FW.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1402,6 +1406,8 @@ enum nl80211_attrs {
 
        NL80211_ATTR_PROBE_RESP_OFFLOAD,
 
+       NL80211_ATTR_PROBE_RESP,
+
        /* add attributes here, update the policy in nl80211.c */
 
        __NL80211_ATTR_AFTER_LAST,

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 093f538..8d7ba09 100644 (file)
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -391,6 +391,8 @@ struct cfg80211_crypto_settings {
  * @assocresp_ies: extra information element(s) to add into (Re)Association
  *     Response frames or %NULL
  * @assocresp_ies_len: length of assocresp_ies in octets
+ * @probe_resp_len: length of probe response template (@probe_resp)
+ * @probe_resp: probe response template (AP mode only)
  */
 struct beacon_parameters {
        u8 *head, *tail;
@@ -408,6 +410,8 @@ struct beacon_parameters {
        size_t proberesp_ies_len;
        const u8 *assocresp_ies;
        size_t assocresp_ies_len;
+       int probe_resp_len;
+       u8 *probe_resp;
 };
 
 /**

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f395a06..6bc7c4b 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -197,6 +197,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
        [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
        [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
        [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
+       [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
+                                     .len = IEEE80211_MAX_DATA_LEN },
 };
 
 /* policy for the key attributes */
@@ -2171,6 +2173,13 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
                        nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
        }
 
+       if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
+               params.probe_resp =
+                       nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
+               params.probe_resp_len =
+                       nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
+       }
+
        err = call(&rdev->wiphy, dev, &params);
        if (!err && params.interval)
                wdev->beacon_interval = params.interval;