cfg80211/nl80211: scanning (and mac80211 update to use it)

This patch adds basic scan capability to cfg80211/nl80211 and
changes mac80211 to use it. The BSS list that cfg80211 maintains
is made driver-accessible with a private area in each BSS struct,
but mac80211 doesn't yet use it. That's another large project.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9122416fd6af..cbc0b7d647f9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -294,8 +294,6 @@ struct ieee80211_if_sta {
         u8 ssid[IEEE80211_MAX_SSID_LEN];
         enum ieee80211_sta_mlme_state state;
         size_t ssid_len;
-        u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
-        size_t scan_ssid_len;
         u16 aid;
         u16 ap_capab, capab;
         u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -658,17 +656,18 @@ struct ieee80211_local {
 
         /* Scanning and BSS list */
         bool sw_scanning, hw_scanning;
+        struct cfg80211_ssid scan_ssid;
+        struct cfg80211_scan_request int_scan_req;
+        struct cfg80211_scan_request *scan_req;
+        struct ieee80211_channel *scan_channel;
         int scan_channel_idx;
-        enum ieee80211_band scan_band;
 
         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
         unsigned long last_scan_completed;
         struct delayed_work scan_work;
         struct ieee80211_sub_if_data *scan_sdata;
-        struct ieee80211_channel *oper_channel, *scan_channel, *csa_channel;
         enum nl80211_channel_type oper_channel_type;
-        u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
-        size_t scan_ssid_len;
+        struct ieee80211_channel *oper_channel, *csa_channel;
         struct list_head bss_list;
         struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
         spinlock_t bss_lock;
@@ -929,7 +928,7 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 
 /* scan/BSS handling */
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
-                           u8 *ssid, size_t ssid_len);
+                           struct cfg80211_scan_request *req);
 int ieee80211_scan_results(struct ieee80211_local *local,
                            struct iw_request_info *info,
                            char *buf, size_t len);
@@ -944,14 +943,15 @@ int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-                         u8 *ssid, size_t ssid_len);
+                         struct cfg80211_scan_request *req);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
                           struct ieee80211_rx_status *rx_status,
                           struct ieee80211_mgmt *mgmt,
                           size_t len,
                           struct ieee802_11_elems *elems,
-                          int freq, bool beacon);
+                          struct ieee80211_channel *channel,
+                          bool beacon);
 struct ieee80211_bss *
 ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
                      u8 *ssid, u8 ssid_len);