drivers/net/wireless/orinoco/main.h

   1 /* Exports from main to helper modules
   2  *
   3  * See copyright notice in main.c
   4  */
   5 #ifndef _ORINOCO_MAIN_H_
   6 #define _ORINOCO_MAIN_H_
   7
   8 #include <linux/ieee80211.h>
   9 #include "orinoco.h"
  10
  11 /********************************************************************/
  12 /* Compile time configuration and compatibility stuff               */
  13 /********************************************************************/
  14
  15 /* We do this this way to avoid ifdefs in the actual code */
  16 #ifdef WIRELESS_SPY
  17 #define SPY_NUMBER(priv)        (priv->spy_data.spy_number)
  18 #else
  19 #define SPY_NUMBER(priv)        0
  20 #endif /* WIRELESS_SPY */
  21
  22 /********************************************************************/
  23
  24 /* Export module parameter */
  25 extern int force_monitor;
  26
  27 /* Forward declarations */
  28 struct net_device;
  29 struct work_struct;
  30
  31 void set_port_type(struct orinoco_private *priv);
  32 int orinoco_commit(struct orinoco_private *priv);
  33 void orinoco_reset(struct work_struct *work);
  34
  35 /* Information element helpers - find a home for these... */
  36 static inline u8 *orinoco_get_ie(u8 *data, size_t len,
  37                                  enum ieee80211_eid eid)
  38 {
  39         u8 *p = data;
  40         while ((p + 2) < (data + len)) {
  41                 if (p[0] == eid)
  42                         return p;
  43                 p += p[1] + 2;
  44         }
  45         return NULL;
  46 }
  47
  48 #define WPA_OUI_TYPE    "\x00\x50\xF2\x01"
  49 #define WPA_SELECTOR_LEN 4
  50 static inline u8 *orinoco_get_wpa_ie(u8 *data, size_t len)
  51 {
  52         u8 *p = data;
  53         while ((p + 2 + WPA_SELECTOR_LEN) < (data + len)) {
  54                 if ((p[0] == WLAN_EID_GENERIC) &&
  55                     (memcmp(&p[2], WPA_OUI_TYPE, WPA_SELECTOR_LEN) == 0))
  56                         return p;
  57                 p += p[1] + 2;
  58         }
  59         return NULL;
  60 }
  61
  62 #endif /* _ORINOCO_MAIN_H_ */