net/mac80211/key.c

   1 /*
   2  * Copyright 2002-2005, Instant802 Networks, Inc.
   3  * Copyright 2005-2006, Devicescape Software, Inc.
   4  * Copyright 2006-2007  Jiri Benc <jbenc@suse.cz>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <net/mac80211.h>
  12 #include "ieee80211_i.h"
  13 #include "debugfs_key.h"
  14 #include "aes_ccm.h"
  15
  16 struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
  17                                           int idx, size_t key_len, gfp_t flags)
  18 {
  19         struct ieee80211_key *key;
  20
  21         key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags);
  22         if (!key)
  23                 return NULL;
  24         return key;
  25 }
  26
  27 void ieee80211_key_free(struct ieee80211_key *key)
  28 {
  29         if (!key)
  30                 return;
  31
  32         if (key->conf.alg == ALG_CCMP)
  33                 ieee80211_aes_key_free(key->u.ccmp.tfm);
  34         ieee80211_debugfs_key_remove(key);
  35         kfree(key);
  36 }