Receive background scan period as part of connect
command and pass the same to the driver.
Signed-off-by: Bala Shanmugam <[email protected]>
---
include/linux/nl80211.h | 10 ++++++++++
include/net/cfg80211.h | 3 +++
net/wireless/nl80211.c | 8 ++++++++
net/wireless/wext-sme.c | 3 +++
4 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index c37d67a..e474f6e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -369,6 +369,11 @@
* %NL80211_ATTR_WIPHY_FREQ, %NL80211_ATTR_CONTROL_PORT,
* %NL80211_ATTR_CONTROL_PORT_ETHERTYPE and
* %NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT.
+ * Background scan period can optionally be
+ * specified in %NL80211_ATTR_BG_SCAN_PERIOD,
+ * if not specified default background scan configuration
+ * in driver is used and if period value is 0, bg scan will be disabled.
+ * This attribute is ignored if driver does not support roam scan.
* It is also sent as an event, with the BSSID and response IEs when the
* connection is established or failed to be established. This can be
* determined by the STATUS_CODE attribute.
@@ -1207,6 +1212,9 @@ enum nl80211_commands {
* this attribute is (depending on the driver capabilities) added to
* received frames indicated with %NL80211_CMD_FRAME.
*
+ * @NL80211_ATTR_BG_SCAN_PERIOD: Background scan period in seconds
+ * or 0 to disable background scan.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1456,6 +1464,8 @@ enum nl80211_attrs {
NL80211_ATTR_RX_SIGNAL_DBM,
+ NL80211_ATTR_BG_SCAN_PERIOD,
+
/* 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 57c9fdd..66f4603 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1203,6 +1203,8 @@ struct cfg80211_ibss_params {
* @key_idx: index of WEP key for shared key authentication
* @key: WEP key for shared key authentication
* @flags: See &enum cfg80211_assoc_req_flags
+ * @bg_scan_period: Background scan period in seconds
+ * or -1 to indicate that default value is to be used.
* @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
* will be used in ht_capa. Un-supported values will be ignored.
* @ht_capa_mask: The bits of ht_capa which are to be used.
@@ -1220,6 +1222,7 @@ struct cfg80211_connect_params {
const u8 *key;
u8 key_len, key_idx;
u32 flags;
+ int bg_scan_period;
struct ieee80211_ht_cap ht_capa;
struct ieee80211_ht_cap ht_capa_mask;
};
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 39dbdf2..4c1eb94 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -205,6 +205,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
},
[NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
[NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
+ [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
};
/* policy for the key attributes */
@@ -5116,6 +5117,13 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
wiphy = &rdev->wiphy;
+ connect.bg_scan_period = -1;
+ if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
+ (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
+ connect.bg_scan_period =
+ nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
+ }
+
if (info->attrs[NL80211_ATTR_MAC])
connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 326750b..7c01c2f 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -30,6 +30,9 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
wdev->wext.connect.ie = wdev->wext.ie;
wdev->wext.connect.ie_len = wdev->wext.ie_len;
+ /* Use default background scan period */
+ wdev->wext.connect.bg_scan_period = -1;
+
if (wdev->wext.keys) {
wdev->wext.keys->def = wdev->wext.default_key;
wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
--
1.7.4.1