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authorJohn W. Linville <linville@tuxdriver.com>2011-09-30 14:52:16 -0400
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 14:52:29 -0400
commit8e00f5fbb4ecbc3431fa686cba60cd76a62604af (patch)
tree78aa3bdef892dbd1afc8969fc528e529cfc266f7 /net/wireless/scan.c
parent56fd49e399ce1d82200fad5b8924d4e35a587809 (diff)
parent0874073570d9184a169a4ae2abbe8dbcb71878e9 (diff)
Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
Conflicts: drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r--net/wireless/scan.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index b0f00396695..0fb14241040 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -228,6 +228,33 @@ const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
}
EXPORT_SYMBOL(cfg80211_find_ie);
+const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
+ const u8 *ies, int len)
+{
+ struct ieee80211_vendor_ie *ie;
+ const u8 *pos = ies, *end = ies + len;
+ int ie_oui;
+
+ while (pos < end) {
+ pos = cfg80211_find_ie(WLAN_EID_VENDOR_SPECIFIC, pos,
+ end - pos);
+ if (!pos)
+ return NULL;
+
+ if (end - pos < sizeof(*ie))
+ return NULL;
+
+ ie = (struct ieee80211_vendor_ie *)pos;
+ ie_oui = ie->oui[0] << 16 | ie->oui[1] << 8 | ie->oui[2];
+ if (ie_oui == oui && ie->oui_type == oui_type)
+ return pos;
+
+ pos += 2 + ie->len;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(cfg80211_find_vendor_ie);
+
static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
{
const u8 *ie1 = cfg80211_find_ie(num, ies1, len1);