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mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR

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Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software
based scanning and generate a random MAC address for them for every
scan request with the flag.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2014-06-12 22:24:31 +02:00
commit a344d6778a
24 changed files with 166 additions and 72 deletions
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15
include/net/mac80211.h
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@ -2622,7 +2622,9 @@ enum ieee80211_reconfig_type {
*
* @sw_scan_start: Notifier function that is called just before a software scan
* is started. Can be NULL, if the driver doesn't need this notification.
* The callback can sleep.
* The mac_addr parameter allows supporting NL80211_SCAN_FLAG_RANDOM_ADDR,
* the driver may set the NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR flag if it
* can use this parameter. The callback can sleep.
*
* @sw_scan_complete: Notifier function that is called just after a
* software scan finished. Can be NULL, if the driver doesn't need
@ -3016,8 +3018,11 @@ struct ieee80211_ops {
struct ieee80211_scan_ies *ies);
int (*sched_scan_stop)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
void (*sw_scan_start)(struct ieee80211_hw *hw);
void (*sw_scan_complete)(struct ieee80211_hw *hw);
void (*sw_scan_start)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const u8 *mac_addr);
void (*sw_scan_complete)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int (*get_stats)(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
@ -3820,7 +3825,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
/**
* ieee80211_probereq_get - retrieve a Probe Request template
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
* @src_addr: source MAC address
* @ssid: SSID buffer
* @ssid_len: length of SSID
* @tailroom: tailroom to reserve at end of SKB for IEs
@ -3831,7 +3836,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
* Return: The Probe Request template. %NULL on error.
*/
struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const u8 *src_addr,
const u8 *ssid, size_t ssid_len,
size_t tailroom);