Notify the userspace of the probe response offloading
support by the driver.
Signed-off-by: Guy Eilam <guy@xxxxxxxxxx>
---
include/linux/nl80211.h | 24 ++++++++++++++++++++++++
include/net/cfg80211.h | 4 ++++
net/wireless/nl80211.c | 12 ++++++++++++
3 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 9d797f2..a436f74 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1109,6 +1109,11 @@ enum nl80211_commands {
* %NL80211_CMD_TDLS_MGMT. Otherwise %NL80211_CMD_TDLS_OPER should be
* used for asking the driver to perform a TDLS operation.
*
+ * @NL80211_ATTR_PROBE_RESP_OFFLOAD_SUPPORT: Indicates the support
+ * of probe response offloading by the driver/firmware.
+ * In addition this attribute holds a bitmap of the supported protocols
+ * for offloading using &enum nl80211_probe_resp_offload_support_attr.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1337,6 +1342,8 @@ enum nl80211_attrs {
NL80211_ATTR_TDLS_SUPPORT,
NL80211_ATTR_TDLS_EXTERNAL_SETUP,
+ NL80211_ATTR_PROBE_RESP_OFFLOAD_SUPPORT,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -2648,4 +2655,21 @@ enum nl80211_tdls_operation {
NL80211_TDLS_DISABLE_LINK,
};
+/**
+ * enum nl80211_probe_resp_offload_support_attr - definition of optional
+ * supported protocols for probe response offloading by the driver/firmware
+ * to be used with the %NL80211_ATTR_PROBE_RESP_OFFLOAD_SUPPORT
+ * attribute. Each enum value represents a bit in the bitmap of
+ * supported protocols.
+ *
+ * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS: Support for WPS ver. 1
+ * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2: Support for WPS ver. 2
+ * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P: Support for P2P
+ */
+enum nl80211_probe_resp_offload_support_attr {
+ NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS,
+ NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2,
+ NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P,
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 74f4f85..b5ddd62 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1425,6 +1425,8 @@ struct cfg80211_gtk_rekey_data {
*
* @tdls_mgmt: Transmit a TDLS management frame.
* @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
+ *
+ * @get_probe_resp_offload: Get probe response offload support from driver.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -1614,6 +1616,8 @@ struct cfg80211_ops {
u16 status_code, const u8 *buf, size_t len);
int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
u8 *peer, enum nl80211_tdls_operation oper);
+ int (*get_probe_resp_offload) (struct wiphy *wiphy,
+ u32 *supp_protocols);
};
/*
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index edf655a..ad90ec4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -759,6 +759,18 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
dev->wiphy.available_antennas_rx);
+ if (dev->ops->get_probe_resp_offload) {
+ u32 supp_protocols = 0;
+ int res;
+ res = dev->ops->get_probe_resp_offload(&dev->wiphy,
+ &supp_protocols);
+ if (!res) {
+ NLA_PUT_U32(msg,
+ NL80211_ATTR_PROBE_RESP_OFFLOAD_SUPPORT,
+ supp_protocols);
+ }
+ }
+
if ((dev->wiphy.available_antennas_tx ||
dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
u32 tx_ant = 0, rx_ant = 0;
--
1.7.4.1
--
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