1 files changed, 40 insertions, 0 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 195424eee77d..1394115cde95 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3430,6 +3430,46 @@ void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
                                 NL80211_CMD_DISASSOCIATE);
 }
 
+void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
+                                 struct net_device *netdev, const u8 *addr,
+                                 enum nl80211_key_type key_type, int key_id,
+                                 const u8 *tsc)
+{
+        struct sk_buff *msg;
+        void *hdr;
+
+        msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+        if (!msg)
+                return;
+
+        hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
+        if (!hdr) {
+                nlmsg_free(msg);
+                return;
+        }
+
+        NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+        NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+        if (addr)
+                NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+        NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
+        NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
+        if (tsc)
+                NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
+
+        if (genlmsg_end(msg, hdr) < 0) {
+                nlmsg_free(msg);
+                return;
+        }
+
+        genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
+        return;
+
+ nla_put_failure:
+        genlmsg_cancel(msg, hdr);
+        nlmsg_free(msg);
+}
+
 /* initialisation/exit functions */
 
 int nl80211_init(void)