cfg80211/nl80211: add interval attribute for scheduled scans

Introduce NL80211_ATTR_SCHED_SCAN_INTERVAL as a required attribute for
NL80211_CMD_START_SCHED_SCAN.  This value informs the driver at which
intervals the scheduled scan cycles should be executed.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4fac370284c0..b5b050b62f2a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -175,6 +175,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
         [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
         [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
         [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
+        [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
 };
 
 /* policy for the key attributes */
@@ -3370,6 +3371,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
         struct nlattr *attr;
         struct wiphy *wiphy;
         int err, tmp, n_ssids = 0, n_channels, i;
+        u32 interval;
         enum ieee80211_band band;
         size_t ie_len;
 
@@ -3383,6 +3385,13 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
         if (rdev->sched_scan_req)
                 return -EINPROGRESS;
 
+        if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
+                return -EINVAL;
+
+        interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
+        if (interval == 0)
+                return -EINVAL;
+
         wiphy = &rdev->wiphy;
 
         if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
@@ -3505,6 +3514,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
 
         request->dev = dev;
         request->wiphy = &rdev->wiphy;
+        request->interval = interval;
 
         err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
         if (!err) {