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Diffstat (limited to 'net/ieee80211/ieee80211_crypt.c')
-rw-r--r--net/ieee80211/ieee80211_crypt.c206
1 files changed, 0 insertions, 206 deletions
diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c
deleted file mode 100644
index df5592c9339f..000000000000
--- a/net/ieee80211/ieee80211_crypt.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
- * Portions Copyright (C) 2004, Intel Corporation <jketreno@linux.intel.com>
- *
- * 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. See README and COPYING for
- * more details.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <net/ieee80211.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("HostAP crypto");
-MODULE_LICENSE("GPL");
-
-struct ieee80211_crypto_alg {
- struct list_head list;
- struct ieee80211_crypto_ops *ops;
-};
-
-static LIST_HEAD(ieee80211_crypto_algs);
-static DEFINE_SPINLOCK(ieee80211_crypto_lock);
-
-void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
-{
- struct ieee80211_crypt_data *entry, *next;
- unsigned long flags;
-
- spin_lock_irqsave(&ieee->lock, flags);
- list_for_each_entry_safe(entry, next, &ieee->crypt_deinit_list, list) {
- if (atomic_read(&entry->refcnt) != 0 && !force)
- continue;
-
- list_del(&entry->list);
-
- if (entry->ops) {
- entry->ops->deinit(entry->priv);
- module_put(entry->ops->owner);
- }
- kfree(entry);
- }
- spin_unlock_irqrestore(&ieee->lock, flags);
-}
-
-/* After this, crypt_deinit_list won't accept new members */
-void ieee80211_crypt_quiescing(struct ieee80211_device *ieee)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ieee->lock, flags);
- ieee->crypt_quiesced = 1;
- spin_unlock_irqrestore(&ieee->lock, flags);
-}
-
-void ieee80211_crypt_deinit_handler(unsigned long data)
-{
- struct ieee80211_device *ieee = (struct ieee80211_device *)data;
- unsigned long flags;
-
- ieee80211_crypt_deinit_entries(ieee, 0);
-
- spin_lock_irqsave(&ieee->lock, flags);
- if (!list_empty(&ieee->crypt_deinit_list) && !ieee->crypt_quiesced) {
- printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
- "deletion list\n", ieee->dev->name);
- ieee->crypt_deinit_timer.expires = jiffies + HZ;
- add_timer(&ieee->crypt_deinit_timer);
- }
- spin_unlock_irqrestore(&ieee->lock, flags);
-}
-
-void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
- struct ieee80211_crypt_data **crypt)
-{
- struct ieee80211_crypt_data *tmp;
- unsigned long flags;
-
- if (*crypt == NULL)
- return;
-
- tmp = *crypt;
- *crypt = NULL;
-
- /* must not run ops->deinit() while there may be pending encrypt or
- * decrypt operations. Use a list of delayed deinits to avoid needing
- * locking. */
-
- spin_lock_irqsave(&ieee->lock, flags);
- if (!ieee->crypt_quiesced) {
- list_add(&tmp->list, &ieee->crypt_deinit_list);
- if (!timer_pending(&ieee->crypt_deinit_timer)) {
- ieee->crypt_deinit_timer.expires = jiffies + HZ;
- add_timer(&ieee->crypt_deinit_timer);
- }
- }
- spin_unlock_irqrestore(&ieee->lock, flags);
-}
-
-int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
-{
- unsigned long flags;
- struct ieee80211_crypto_alg *alg;
-
- alg = kzalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL)
- return -ENOMEM;
-
- alg->ops = ops;
-
- spin_lock_irqsave(&ieee80211_crypto_lock, flags);
- list_add(&alg->list, &ieee80211_crypto_algs);
- spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-
- printk(KERN_DEBUG "ieee80211_crypt: registered algorithm '%s'\n",
- ops->name);
-
- return 0;
-}
-
-int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops)
-{
- struct ieee80211_crypto_alg *alg;
- unsigned long flags;
-
- spin_lock_irqsave(&ieee80211_crypto_lock, flags);
- list_for_each_entry(alg, &ieee80211_crypto_algs, list) {
- if (alg->ops == ops)
- goto found;
- }
- spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
- return -EINVAL;
-
- found:
- printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
- "'%s'\n", ops->name);
- list_del(&alg->list);
- spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
- kfree(alg);
- return 0;
-}
-
-struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name)
-{
- struct ieee80211_crypto_alg *alg;
- unsigned long flags;
-
- spin_lock_irqsave(&ieee80211_crypto_lock, flags);
- list_for_each_entry(alg, &ieee80211_crypto_algs, list) {
- if (strcmp(alg->ops->name, name) == 0)
- goto found;
- }
- spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
- return NULL;
-
- found:
- spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
- return alg->ops;
-}
-
-static void *ieee80211_crypt_null_init(int keyidx)
-{
- return (void *)1;
-}
-
-static void ieee80211_crypt_null_deinit(void *priv)
-{
-}
-
-static struct ieee80211_crypto_ops ieee80211_crypt_null = {
- .name = "NULL",
- .init = ieee80211_crypt_null_init,
- .deinit = ieee80211_crypt_null_deinit,
- .owner = THIS_MODULE,
-};
-
-static int __init ieee80211_crypto_init(void)
-{
- return ieee80211_register_crypto_ops(&ieee80211_crypt_null);
-}
-
-static void __exit ieee80211_crypto_deinit(void)
-{
- ieee80211_unregister_crypto_ops(&ieee80211_crypt_null);
- BUG_ON(!list_empty(&ieee80211_crypto_algs));
-}
-
-EXPORT_SYMBOL(ieee80211_crypt_deinit_entries);
-EXPORT_SYMBOL(ieee80211_crypt_deinit_handler);
-EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit);
-EXPORT_SYMBOL(ieee80211_crypt_quiescing);
-
-EXPORT_SYMBOL(ieee80211_register_crypto_ops);
-EXPORT_SYMBOL(ieee80211_unregister_crypto_ops);
-EXPORT_SYMBOL(ieee80211_get_crypto_ops);
-
-module_init(ieee80211_crypto_init);
-module_exit(ieee80211_crypto_deinit);