staging: rtl8192e: Remove rtllib_crypt.[ch]
It is neither compiled nor used in rtl8192e. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
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1af35de29f
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@ -1,254 +0,0 @@
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/*
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* Host AP crypto routines
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*
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* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
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* Portions Copyright (C) 2004, Intel Corporation <jketreno@linux.intel.com>
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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. See README and COPYING for
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* more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include "rtllib.h"
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struct rtllib_crypto_alg {
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struct list_head list;
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struct lib80211_crypto_ops *ops;
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};
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struct rtllib_crypto {
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struct list_head algs;
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spinlock_t lock;
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};
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static struct rtllib_crypto *hcrypt;
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void rtllib_crypt_deinit_entries(struct lib80211_crypt_info *info,
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int force)
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{
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struct list_head *ptr, *n;
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struct lib80211_crypt_data *entry;
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for (ptr = info->crypt_deinit_list.next, n = ptr->next;
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ptr != &info->crypt_deinit_list; ptr = n, n = ptr->next) {
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entry = list_entry(ptr, struct lib80211_crypt_data, list);
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if (atomic_read(&entry->refcnt) != 0 && !force)
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continue;
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list_del(ptr);
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if (entry->ops)
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entry->ops->deinit(entry->priv);
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kfree(entry);
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}
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}
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EXPORT_SYMBOL(rtllib_crypt_deinit_entries);
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void rtllib_crypt_deinit_handler(unsigned long data)
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{
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struct lib80211_crypt_info *info = (struct lib80211_crypt_info *)data;
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unsigned long flags;
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spin_lock_irqsave(info->lock, flags);
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rtllib_crypt_deinit_entries(info, 0);
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if (!list_empty(&info->crypt_deinit_list)) {
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printk(KERN_DEBUG
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"%s: entries remaining in delayed crypt deletion list\n",
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info->name);
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info->crypt_deinit_timer.expires = jiffies + HZ;
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add_timer(&info->crypt_deinit_timer);
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}
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spin_unlock_irqrestore(info->lock, flags);
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}
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EXPORT_SYMBOL(rtllib_crypt_deinit_handler);
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void rtllib_crypt_delayed_deinit(struct lib80211_crypt_info *info,
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struct lib80211_crypt_data **crypt)
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{
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struct lib80211_crypt_data *tmp;
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unsigned long flags;
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if (*crypt == NULL)
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return;
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tmp = *crypt;
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*crypt = NULL;
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/* must not run ops->deinit() while there may be pending encrypt or
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* decrypt operations. Use a list of delayed deinits to avoid needing
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* locking.
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*/
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spin_lock_irqsave(info->lock, flags);
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list_add(&tmp->list, &info->crypt_deinit_list);
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if (!timer_pending(&info->crypt_deinit_timer)) {
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info->crypt_deinit_timer.expires = jiffies + HZ;
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add_timer(&info->crypt_deinit_timer);
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}
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spin_unlock_irqrestore(info->lock, flags);
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}
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EXPORT_SYMBOL(rtllib_crypt_delayed_deinit);
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int rtllib_register_crypto_ops(struct lib80211_crypto_ops *ops)
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{
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unsigned long flags;
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struct rtllib_crypto_alg *alg;
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if (hcrypt == NULL)
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return -1;
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alg = kzalloc(sizeof(*alg), GFP_KERNEL);
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if (alg == NULL)
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return -ENOMEM;
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alg->ops = ops;
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spin_lock_irqsave(&hcrypt->lock, flags);
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list_add(&alg->list, &hcrypt->algs);
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spin_unlock_irqrestore(&hcrypt->lock, flags);
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printk(KERN_DEBUG "rtllib_crypt: registered algorithm '%s'\n",
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ops->name);
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return 0;
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}
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EXPORT_SYMBOL(rtllib_register_crypto_ops);
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int rtllib_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
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{
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unsigned long flags;
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struct list_head *ptr;
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struct rtllib_crypto_alg *del_alg = NULL;
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if (hcrypt == NULL)
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return -1;
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spin_lock_irqsave(&hcrypt->lock, flags);
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for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
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struct rtllib_crypto_alg *alg =
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(struct rtllib_crypto_alg *) ptr;
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if (alg->ops == ops) {
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list_del(&alg->list);
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del_alg = alg;
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break;
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}
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}
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spin_unlock_irqrestore(&hcrypt->lock, flags);
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if (del_alg) {
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printk(KERN_DEBUG "rtllib_crypt: unregistered algorithm '%s'\n",
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ops->name);
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kfree(del_alg);
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}
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return del_alg ? 0 : -1;
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}
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EXPORT_SYMBOL(rtllib_unregister_crypto_ops);
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struct lib80211_crypto_ops *rtllib_get_crypto_ops(const char *name)
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{
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unsigned long flags;
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struct list_head *ptr;
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struct rtllib_crypto_alg *found_alg = NULL;
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if (hcrypt == NULL)
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return NULL;
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spin_lock_irqsave(&hcrypt->lock, flags);
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for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
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struct rtllib_crypto_alg *alg =
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(struct rtllib_crypto_alg *) ptr;
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if (strcmp(alg->ops->name, name) == 0) {
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found_alg = alg;
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break;
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}
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}
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spin_unlock_irqrestore(&hcrypt->lock, flags);
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if (found_alg)
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return found_alg->ops;
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else
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return NULL;
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}
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EXPORT_SYMBOL(rtllib_get_crypto_ops);
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static void *rtllib_crypt_null_init(int keyidx) { return (void *) 1; }
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static void rtllib_crypt_null_deinit(void *priv) {}
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static struct lib80211_crypto_ops rtllib_crypt_null = {
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.name = "NULL",
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.init = rtllib_crypt_null_init,
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.deinit = rtllib_crypt_null_deinit,
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.encrypt_mpdu = NULL,
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.decrypt_mpdu = NULL,
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.encrypt_msdu = NULL,
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.decrypt_msdu = NULL,
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.set_key = NULL,
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.get_key = NULL,
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.extra_mpdu_prefix_len = 0,
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.extra_mpdu_postfix_len = 0,
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.extra_msdu_prefix_len = 0,
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.extra_msdu_postfix_len = 0,
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.owner = THIS_MODULE,
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};
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int __init rtllib_crypto_init(void)
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{
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int ret = -ENOMEM;
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hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
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if (!hcrypt)
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goto out;
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INIT_LIST_HEAD(&hcrypt->algs);
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spin_lock_init(&hcrypt->lock);
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ret = lib80211_register_crypto_ops(&rtllib_crypt_null);
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if (ret < 0) {
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kfree(hcrypt);
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hcrypt = NULL;
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}
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out:
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return ret;
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}
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void __exit rtllib_crypto_deinit(void)
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{
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struct list_head *ptr, *n;
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if (hcrypt == NULL)
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return;
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for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
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ptr = n, n = ptr->next) {
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struct rtllib_crypto_alg *alg =
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(struct rtllib_crypto_alg *) ptr;
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list_del(ptr);
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printk(KERN_DEBUG
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"rtllib_crypt: unregistered algorithm '%s' (deinit)\n",
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alg->ops->name);
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kfree(alg);
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}
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kfree(hcrypt);
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}
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module_init(rtllib_crypto_init);
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module_exit(rtllib_crypto_deinit);
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MODULE_LICENSE("GPL");
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@ -1,34 +0,0 @@
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/*
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* Original code based on Host AP (software wireless LAN access point) driver
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* for Intersil Prism2/2.5/3.
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <jkmaline@cc.hut.fi>
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* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
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*
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* Adaption to a generic IEEE 802.11 stack by James Ketrenos
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* <jketreno@linux.intel.com>
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*
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* Copyright (c) 2004, Intel Corporation
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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. See README and COPYING for
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* more details.
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*/
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/* This file defines the interface to the rtllib crypto module.
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*/
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#ifndef RTLLIB_CRYPT_H
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#define RTLLIB_CRYPT_H
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#include <linux/skbuff.h>
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int rtllib_register_crypto_ops(struct lib80211_crypto_ops *ops);
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int rtllib_unregister_crypto_ops(struct lib80211_crypto_ops *ops);
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struct lib80211_crypto_ops *rtllib_get_crypto_ops(const char *name);
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void rtllib_crypt_deinit_entries(struct lib80211_crypt_info *info, int force);
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void rtllib_crypt_deinit_handler(unsigned long data);
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void rtllib_crypt_delayed_deinit(struct lib80211_crypt_info *info,
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struct lib80211_crypt_data **crypt);
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#endif
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