cfg80211: add cfg80211_find_vendor_ie() function
Add function to find vendor-specific ie (along with
vendor-specific ie struct definition and P2P OUI values)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 72f3933..b5e0a5c 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -777,6 +777,13 @@
u8 mic[8];
} __attribute__ ((packed));
+struct ieee80211_vendor_ie {
+ u8 element_id;
+ u8 len;
+ u8 oui[3];
+ u8 oui_type;
+} __packed;
+
/* Control frames */
struct ieee80211_rts {
__le16 frame_control;
@@ -1470,6 +1477,9 @@
#define WLAN_PMKID_LEN 16
+#define WLAN_OUI_WFA 0x506f9a
+#define WLAN_OUI_TYPE_WFA_P2P 9
+
/*
* WMM/802.11e Tspec Element
*/
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b42136a..9518b5c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2459,6 +2459,24 @@
const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
/**
+ * cfg80211_find_vendor_ie - find vendor specific information element in data
+ *
+ * @oui: vendor OUI
+ * @oui_type: vendor-specific OUI type
+ * @ies: data consisting of IEs
+ * @len: length of data
+ *
+ * This function will return %NULL if the vendor specific element ID
+ * could not be found or if the element is invalid (claims to be
+ * longer than the given data), or a pointer to the first byte
+ * of the requested element, that is the byte containing the
+ * element ID. There are no checks on the element length
+ * other than having to fit into the given data.
+ */
+const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
+ const u8 *ies, int len);
+
+/**
* DOC: Regulatory enforcement infrastructure
*
* TODO