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cfg80211: allow finding vendor with OUI without specifying the OUI type

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This allows finding vendor IE from a specific vendor.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach
2016-05-03 16:08:07 +03:00
committed by Johannes Berg
parent f631a77ba9
commit 9e9ea43905
2 changed files with 8 additions and 4 deletions
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8
net/wireless/scan.c
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@@ -364,13 +364,16 @@ 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 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
const u8 *ies, int len)
{
struct ieee80211_vendor_ie *ie;
const u8 *pos = ies, *end = ies + len;
int ie_oui;
if (WARN_ON(oui_type > 0xff))
return NULL;
while (pos < end) {
pos = cfg80211_find_ie(WLAN_EID_VENDOR_SPECIFIC, pos,
end - pos);
@@ -386,7 +389,8 @@ const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
goto cont;
ie_oui = ie->oui[0] << 16 | ie->oui[1] << 8 | ie->oui[2];
if (ie_oui == oui && ie->oui_type == oui_type)
if (ie_oui == oui &&
(oui_type < 0 || ie->oui_type == oui_type))
return pos;
cont:
pos += 2 + ie->len;