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cfg80211: Add background scan period attribute.

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Receive background scan period as part of connect
command and pass the same to the driver.

Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bala Shanmugam 2012-03-07 17:27:12 +05:30 committed by John W. Linville
parent bff2ec2b91
commit 4486ea987e
4 changed files with 24 additions and 0 deletions
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10
include/linux/nl80211.h
View File

@ -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,

3
include/net/cfg80211.h
View File

@ -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;
};

8
net/wireless/nl80211.c
View File

@ -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]);

3
net/wireless/wext-sme.c
View File

@ -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;