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