X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fnet%2Fcfg80211.h;h=7edaef6b29d63b4c6a5fd7af2c4c45a0e1ce5098;hb=7616ee95f27a04fd5a6434e9ef4a82cec4b2807c;hp=88171f8ce58a1781f9c1664a41229883e406ea4f;hpb=d29182534c5f39ff899763d1e0982d8f33791d6f;p=linux-2.6

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 88171f8ce5..7edaef6b29 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -11,6 +11,44 @@
  * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
  */
 
+
+/* Radiotap header iteration
+ *   implemented in net/wireless/radiotap.c
+ *   docs in Documentation/networking/radiotap-headers.txt
+ */
+/**
+ * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
+ * @rtheader: pointer to the radiotap header we are walking through
+ * @max_length: length of radiotap header in cpu byte ordering
+ * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
+ * @this_arg: pointer to current radiotap arg
+ * @arg_index: internal next argument index
+ * @arg: internal next argument pointer
+ * @next_bitmap: internal pointer to next present u32
+ * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
+ */
+
+struct ieee80211_radiotap_iterator {
+	struct ieee80211_radiotap_header *rtheader;
+	int max_length;
+	int this_arg_index;
+	u8 *this_arg;
+
+	int arg_index;
+	u8 *arg;
+	__le32 *next_bitmap;
+	u32 bitmap_shifter;
+};
+
+extern int ieee80211_radiotap_iterator_init(
+   struct ieee80211_radiotap_iterator *iterator,
+   struct ieee80211_radiotap_header *radiotap_header,
+   int max_length);
+
+extern int ieee80211_radiotap_iterator_next(
+   struct ieee80211_radiotap_iterator *iterator);
+
+
 /* from net/wireless.h */
 struct wiphy;