aboutsummaryrefslogtreecommitdiffstats
path: root/net/wireless_ath/lib80211.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/wireless_ath/lib80211.c')
-rwxr-xr-xnet/wireless_ath/lib80211.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/net/wireless_ath/lib80211.c b/net/wireless_ath/lib80211.c
deleted file mode 100755
index a55c27b..0000000
--- a/net/wireless_ath/lib80211.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- * lib80211 -- common bits for IEEE802.11 drivers
- *
- * Copyright(c) 2008 John W. Linville <linville@tuxdriver.com>
- *
- * Portions copied from old ieee80211 component, w/ original copyright
- * notices below:
- *
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
- * Portions Copyright (C) 2004, Intel Corporation <jketreno@linux.intel.com>
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/ieee80211.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <net/lib80211.h>
-
-#define DRV_NAME "lib80211"
-
-#define DRV_DESCRIPTION "common routines for IEEE802.11 drivers"
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_AUTHOR("John W. Linville <linville@tuxdriver.com>");
-MODULE_LICENSE("GPL");
-
-struct lib80211_crypto_alg {
- struct list_head list;
- struct lib80211_crypto_ops *ops;
-};
-
-static LIST_HEAD(lib80211_crypto_algs);
-static DEFINE_SPINLOCK(lib80211_crypto_lock);
-
-static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
- int force);
-static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info);
-static void lib80211_crypt_deinit_handler(unsigned long data);
-
-const char *print_ssid(char *buf, const char *ssid, u8 ssid_len)
-{
- const char *s = ssid;
- char *d = buf;
-
- ssid_len = min_t(u8, ssid_len, IEEE80211_MAX_SSID_LEN);
- while (ssid_len--) {
- if (isprint(*s)) {
- *d++ = *s++;
- continue;
- }
-
- *d++ = '\\';
- if (*s == '\0')
- *d++ = '0';
- else if (*s == '\n')
- *d++ = 'n';
- else if (*s == '\r')
- *d++ = 'r';
- else if (*s == '\t')
- *d++ = 't';
- else if (*s == '\\')
- *d++ = '\\';
- else
- d += snprintf(d, 3, "%03o", *s);
- s++;
- }
- *d = '\0';
- return buf;
-}
-EXPORT_SYMBOL(print_ssid);
-
-int lib80211_crypt_info_init(struct lib80211_crypt_info *info, char *name,
- spinlock_t *lock)
-{
- memset(info, 0, sizeof(*info));
-
- info->name = name;
- info->lock = lock;
-
- INIT_LIST_HEAD(&info->crypt_deinit_list);
- setup_timer(&info->crypt_deinit_timer, lib80211_crypt_deinit_handler,
- (unsigned long)info);
-
- return 0;
-}
-EXPORT_SYMBOL(lib80211_crypt_info_init);
-
-void lib80211_crypt_info_free(struct lib80211_crypt_info *info)
-{
- int i;
-
- lib80211_crypt_quiescing(info);
- del_timer_sync(&info->crypt_deinit_timer);
- lib80211_crypt_deinit_entries(info, 1);
-
- for (i = 0; i < NUM_WEP_KEYS; i++) {
- struct lib80211_crypt_data *crypt = info->crypt[i];
- if (crypt) {
- if (crypt->ops) {
- crypt->ops->deinit(crypt->priv);
- module_put(crypt->ops->owner);
- }
- kfree(crypt);
- info->crypt[i] = NULL;
- }
- }
-}
-EXPORT_SYMBOL(lib80211_crypt_info_free);
-
-static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
- int force)
-{
- struct lib80211_crypt_data *entry, *next;
- unsigned long flags;
-
- spin_lock_irqsave(info->lock, flags);
- list_for_each_entry_safe(entry, next, &info->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(info->lock, flags);
-}
-
-/* After this, crypt_deinit_list won't accept new members */
-static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
-{
- unsigned long flags;
-
- spin_lock_irqsave(info->lock, flags);
- info->crypt_quiesced = 1;
- spin_unlock_irqrestore(info->lock, flags);
-}
-
-static void lib80211_crypt_deinit_handler(unsigned long data)
-{
- struct lib80211_crypt_info *info = (struct lib80211_crypt_info *)data;
- unsigned long flags;
-
- lib80211_crypt_deinit_entries(info, 0);
-
- spin_lock_irqsave(info->lock, flags);
- if (!list_empty(&info->crypt_deinit_list) && !info->crypt_quiesced) {
- printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
- "deletion list\n", info->name);
- info->crypt_deinit_timer.expires = jiffies + HZ;
- add_timer(&info->crypt_deinit_timer);
- }
- spin_unlock_irqrestore(info->lock, flags);
-}
-
-void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
- struct lib80211_crypt_data **crypt)
-{
- struct lib80211_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(info->lock, flags);
- if (!info->crypt_quiesced) {
- list_add(&tmp->list, &info->crypt_deinit_list);
- if (!timer_pending(&info->crypt_deinit_timer)) {
- info->crypt_deinit_timer.expires = jiffies + HZ;
- add_timer(&info->crypt_deinit_timer);
- }
- }
- spin_unlock_irqrestore(info->lock, flags);
-}
-EXPORT_SYMBOL(lib80211_crypt_delayed_deinit);
-
-int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops)
-{
- unsigned long flags;
- struct lib80211_crypto_alg *alg;
-
- alg = kzalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL)
- return -ENOMEM;
-
- alg->ops = ops;
-
- spin_lock_irqsave(&lib80211_crypto_lock, flags);
- list_add(&alg->list, &lib80211_crypto_algs);
- spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-
- printk(KERN_DEBUG "lib80211_crypt: registered algorithm '%s'\n",
- ops->name);
-
- return 0;
-}
-EXPORT_SYMBOL(lib80211_register_crypto_ops);
-
-int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
-{
- struct lib80211_crypto_alg *alg;
- unsigned long flags;
-
- spin_lock_irqsave(&lib80211_crypto_lock, flags);
- list_for_each_entry(alg, &lib80211_crypto_algs, list) {
- if (alg->ops == ops)
- goto found;
- }
- spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
- return -EINVAL;
-
- found:
- printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm '%s'\n",
- ops->name);
- list_del(&alg->list);
- spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
- kfree(alg);
- return 0;
-}
-EXPORT_SYMBOL(lib80211_unregister_crypto_ops);
-
-struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name)
-{
- struct lib80211_crypto_alg *alg;
- unsigned long flags;
-
- spin_lock_irqsave(&lib80211_crypto_lock, flags);
- list_for_each_entry(alg, &lib80211_crypto_algs, list) {
- if (strcmp(alg->ops->name, name) == 0)
- goto found;
- }
- spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
- return NULL;
-
- found:
- spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
- return alg->ops;
-}
-EXPORT_SYMBOL(lib80211_get_crypto_ops);
-
-static void *lib80211_crypt_null_init(int keyidx)
-{
- return (void *)1;
-}
-
-static void lib80211_crypt_null_deinit(void *priv)
-{
-}
-
-static struct lib80211_crypto_ops lib80211_crypt_null = {
- .name = "NULL",
- .init = lib80211_crypt_null_init,
- .deinit = lib80211_crypt_null_deinit,
- .owner = THIS_MODULE,
-};
-
-static int __init lib80211_init(void)
-{
- pr_info(DRV_DESCRIPTION "\n");
- return lib80211_register_crypto_ops(&lib80211_crypt_null);
-}
-
-static void __exit lib80211_exit(void)
-{
- lib80211_unregister_crypto_ops(&lib80211_crypt_null);
- BUG_ON(!list_empty(&lib80211_crypto_algs));
-}
-
-module_init(lib80211_init);
-module_exit(lib80211_exit);
generated by cgit v1.1 at 2024-04-19 16:23:07 +0000