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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "debugfs_key.h"
#include "aes_ccm.h"
struct ieee80211_key_conf *
ieee80211_key_data2conf(struct ieee80211_local *local,
const struct ieee80211_key *data)
{
struct ieee80211_key_conf *conf;
conf = kmalloc(sizeof(*conf) + data->keylen, GFP_ATOMIC);
if (!conf)
return NULL;
conf->hw_key_idx = data->hw_key_idx;
conf->alg = data->alg;
conf->keylen = data->keylen;
conf->flags = 0;
if (data->force_sw_encrypt)
conf->flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
conf->keyidx = data->keyidx;
if (data->default_tx_key)
conf->flags |= IEEE80211_KEY_DEFAULT_TX_KEY;
if (local->default_wep_only)
conf->flags |= IEEE80211_KEY_DEFAULT_WEP_ONLY;
memcpy(conf->key, data->key, data->keylen);
return conf;
}
struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
int idx, size_t key_len, gfp_t flags)
{
struct ieee80211_key *key;
key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags);
if (!key)
return NULL;
kref_init(&key->kref);
return key;
}
static void ieee80211_key_release(struct kref *kref)
{
struct ieee80211_key *key;
key = container_of(kref, struct ieee80211_key, kref);
if (key->alg == ALG_CCMP)
ieee80211_aes_key_free(key->u.ccmp.tfm);
ieee80211_debugfs_key_remove(key);
kfree(key);
}
void ieee80211_key_free(struct ieee80211_key *key)
{
if (key)
kref_put(&key->kref, ieee80211_key_release);
}
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