include/net/cfg80211.h

   1 #ifndef __NET_CFG80211_H
   2 #define __NET_CFG80211_H
   3
   4 #include <linux/netlink.h>
   5 #include <linux/skbuff.h>
   6 #include <linux/nl80211.h>
   7 #include <net/genetlink.h>
   8
   9 /*
  10  * 802.11 configuration in-kernel interface
  11  *
  12  * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
  13  */
  14
  15 /* Radiotap header iteration
  16  *   implemented in net/wireless/radiotap.c
  17  *   docs in Documentation/networking/radiotap-headers.txt
  18  */
  19 /**
  20  * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
  21  * @rtheader: pointer to the radiotap header we are walking through
  22  * @max_length: length of radiotap header in cpu byte ordering
  23  * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
  24  * @this_arg: pointer to current radiotap arg
  25  * @arg_index: internal next argument index
  26  * @arg: internal next argument pointer
  27  * @next_bitmap: internal pointer to next present u32
  28  * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
  29  */
  30
  31 struct ieee80211_radiotap_iterator {
  32         struct ieee80211_radiotap_header *rtheader;
  33         int max_length;
  34         int this_arg_index;
  35         u8 *this_arg;
  36
  37         int arg_index;
  38         u8 *arg;
  39         __le32 *next_bitmap;
  40         u32 bitmap_shifter;
  41 };
  42
  43 extern int ieee80211_radiotap_iterator_init(
  44    struct ieee80211_radiotap_iterator *iterator,
  45    struct ieee80211_radiotap_header *radiotap_header,
  46    int max_length);
  47
  48 extern int ieee80211_radiotap_iterator_next(
  49    struct ieee80211_radiotap_iterator *iterator);
  50
  51
  52 /* from net/wireless.h */
  53 struct wiphy;
  54
  55 /**
  56  * struct cfg80211_ops - backend description for wireless configuration
  57  *
  58  * This struct is registered by fullmac card drivers and/or wireless stacks
  59  * in order to handle configuration requests on their interfaces.
  60  *
  61  * All callbacks except where otherwise noted should return 0
  62  * on success or a negative error code.
  63  *
  64  * All operations are currently invoked under rtnl for consistency with the
  65  * wireless extensions but this is subject to reevaluation as soon as this
  66  * code is used more widely and we have a first user without wext.
  67  *
  68  * @add_virtual_intf: create a new virtual interface with the given name
  69  *
  70  * @del_virtual_intf: remove the virtual interface determined by ifindex.
  71  *
  72  * @change_virtual_intf: change type of virtual interface
  73  *
  74  */
  75 struct cfg80211_ops {
  76         int     (*add_virtual_intf)(struct wiphy *wiphy, char *name,
  77                                     enum nl80211_iftype type);
  78         int     (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
  79         int     (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
  80                                        enum nl80211_iftype type);
  81 };
  82
  83 #endif /* __NET_CFG80211_H */