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-rw-r--r--net/wireless/Kconfig30
-rw-r--r--net/wireless/Makefile7
-rw-r--r--net/wireless/core.c14
-rw-r--r--net/wireless/core.h13
-rw-r--r--net/wireless/lib80211.c284
-rw-r--r--net/wireless/lib80211_crypt_ccmp.c492
-rw-r--r--net/wireless/lib80211_crypt_tkip.c784
-rw-r--r--net/wireless/lib80211_crypt_wep.c296
-rw-r--r--net/wireless/nl80211.c417
-rw-r--r--net/wireless/reg.c1005
-rw-r--r--net/wireless/reg.h33
-rw-r--r--net/wireless/sysfs.c25
-rw-r--r--net/wireless/util.c19
-rw-r--r--net/wireless/wext-compat.c139
-rw-r--r--net/wireless/wext.c2
15 files changed, 3281 insertions, 279 deletions
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 646c7121dbc..e28e2b8fa43 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,6 +1,15 @@
config CFG80211
tristate "Improved wireless configuration API"
+config CFG80211_REG_DEBUG
+ bool "cfg80211 regulatory debugging"
+ depends on CFG80211
+ default n
+ ---help---
+ You can enable this if you want to debug regulatory changes.
+
+ If unsure, say N.
+
config NL80211
bool "nl80211 new netlink interface support"
depends on CFG80211
@@ -40,6 +49,8 @@ config WIRELESS_OLD_REGULATORY
ieee80211_regdom module parameter. This is being phased out and you
should stop using them ASAP.
+ Note: You will need CRDA if you want 802.11d support
+
Say Y unless you have installed a new userspace application.
Also say Y if have one currently depending on the ieee80211_regdom
module parameter and cannot port it to use the new userspace
@@ -72,3 +83,22 @@ config WIRELESS_EXT_SYSFS
Say Y if you have programs using it, like old versions of
hal.
+
+config LIB80211
+ tristate "Common routines for IEEE802.11 drivers"
+ default n
+ help
+ This options enables a library of common routines used
+ by IEEE802.11 wireless LAN drivers.
+
+ Drivers should select this themselves if needed. Say Y if
+ you want this built into your kernel.
+
+config LIB80211_CRYPT_WEP
+ tristate
+
+config LIB80211_CRYPT_CCMP
+ tristate
+
+config LIB80211_CRYPT_TKIP
+ tristate
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index b9f943c45f3..938a334c8db 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -1,5 +1,12 @@
obj-$(CONFIG_WIRELESS_EXT) += wext.o
obj-$(CONFIG_CFG80211) += cfg80211.o
+obj-$(CONFIG_LIB80211) += lib80211.o
+obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
+obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
+obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o
+cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o
cfg80211-$(CONFIG_NL80211) += nl80211.o
+
+ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5031db7b275..b96fc0c3f1c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -19,7 +19,6 @@
#include "nl80211.h"
#include "core.h"
#include "sysfs.h"
-#include "reg.h"
/* name for sysfs, %d is appended */
#define PHY_NAME "phy"
@@ -236,8 +235,7 @@ struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
mutex_unlock(&cfg80211_drv_mutex);
/* give it a proper name */
- snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
- PHY_NAME "%d", drv->idx);
+ dev_set_name(&drv->wiphy.dev, PHY_NAME "%d", drv->idx);
mutex_init(&drv->mtx);
mutex_init(&drv->devlist_mtx);
@@ -301,12 +299,10 @@ int wiphy_register(struct wiphy *wiphy)
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
+ mutex_lock(&cfg80211_drv_mutex);
+
/* set up regulatory info */
- mutex_lock(&cfg80211_reg_mutex);
wiphy_update_regulatory(wiphy, REGDOM_SET_BY_CORE);
- mutex_unlock(&cfg80211_reg_mutex);
-
- mutex_lock(&cfg80211_drv_mutex);
res = device_add(&drv->wiphy.dev);
if (res)
@@ -351,6 +347,10 @@ void wiphy_unregister(struct wiphy *wiphy)
/* unlock again before freeing */
mutex_unlock(&drv->mtx);
+ /* If this device got a regulatory hint tell core its
+ * free to listen now to a new shiny device regulatory hint */
+ reg_device_remove(wiphy);
+
list_del(&drv->list);
device_del(&drv->wiphy.dev);
debugfs_remove(drv->wiphy.debugfsdir);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 771cc5cc765..f7fb9f41302 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -11,6 +11,7 @@
#include <net/genetlink.h>
#include <net/wireless.h>
#include <net/cfg80211.h>
+#include "reg.h"
struct cfg80211_registered_device {
struct cfg80211_ops *ops;
@@ -21,6 +22,18 @@ struct cfg80211_registered_device {
* any call is in progress */
struct mutex mtx;
+ /* ISO / IEC 3166 alpha2 for which this device is receiving
+ * country IEs on, this can help disregard country IEs from APs
+ * on the same alpha2 quickly. The alpha2 may differ from
+ * cfg80211_regdomain's alpha2 when an intersection has occurred.
+ * If the AP is reconfigured this can also be used to tell us if
+ * the country on the country IE changed. */
+ char country_ie_alpha2[2];
+
+ /* If a Country IE has been received this tells us the environment
+ * which its telling us its in. This defaults to ENVIRON_ANY */
+ enum environment_cap env;
+
/* wiphy index, internal only */
int idx;
diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c
new file mode 100644
index 00000000000..97d411f7450
--- /dev/null
+++ b/net/wireless/lib80211.c
@@ -0,0 +1,284 @@
+/*
+ * 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>
+ *
+ */
+
+#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);
+
+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);
+
+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);
+}
+EXPORT_SYMBOL(lib80211_crypt_deinit_entries);
+
+/* After this, crypt_deinit_list won't accept new members */
+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);
+}
+EXPORT_SYMBOL(lib80211_crypt_quiescing);
+
+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);
+}
+EXPORT_SYMBOL(lib80211_crypt_deinit_handler);
+
+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)
+{
+ printk(KERN_INFO DRV_NAME ": " 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);
diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c
new file mode 100644
index 00000000000..db428194c16
--- /dev/null
+++ b/net/wireless/lib80211_crypt_ccmp.c
@@ -0,0 +1,492 @@
+/*
+ * lib80211 crypt: host-based CCMP encryption implementation for lib80211
+ *
+ * Copyright (c) 2003-2004, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2008, John W. Linville <linville@tuxdriver.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/kernel.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <asm/string.h>
+#include <linux/wireless.h>
+
+#include <linux/ieee80211.h>
+
+#include <linux/crypto.h>
+
+#include <net/lib80211.h>
+
+MODULE_AUTHOR("Jouni Malinen");
+MODULE_DESCRIPTION("Host AP crypt: CCMP");
+MODULE_LICENSE("GPL");
+
+#define AES_BLOCK_LEN 16
+#define CCMP_HDR_LEN 8
+#define CCMP_MIC_LEN 8
+#define CCMP_TK_LEN 16
+#define CCMP_PN_LEN 6
+
+struct lib80211_ccmp_data {
+ u8 key[CCMP_TK_LEN];
+ int key_set;
+
+ u8 tx_pn[CCMP_PN_LEN];
+ u8 rx_pn[CCMP_PN_LEN];
+
+ u32 dot11RSNAStatsCCMPFormatErrors;
+ u32 dot11RSNAStatsCCMPReplays;
+ u32 dot11RSNAStatsCCMPDecryptErrors;
+
+ int key_idx;
+
+ struct crypto_cipher *tfm;
+
+ /* scratch buffers for virt_to_page() (crypto API) */
+ u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN],
+ tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN];
+ u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN];
+};
+
+static inline void lib80211_ccmp_aes_encrypt(struct crypto_cipher *tfm,
+ const u8 pt[16], u8 ct[16])
+{
+ crypto_cipher_encrypt_one(tfm, ct, pt);
+}
+
+static void *lib80211_ccmp_init(int key_idx)
+{
+ struct lib80211_ccmp_data *priv;
+
+ priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
+ if (priv == NULL)
+ goto fail;
+ priv->key_idx = key_idx;
+
+ priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tfm)) {
+ printk(KERN_DEBUG "lib80211_crypt_ccmp: could not allocate "
+ "crypto API aes\n");
+ priv->tfm = NULL;
+ goto fail;
+ }
+
+ return priv;
+
+ fail:
+ if (priv) {
+ if (priv->tfm)
+ crypto_free_cipher(priv->tfm);
+ kfree(priv);
+ }
+
+ return NULL;
+}
+
+static void lib80211_ccmp_deinit(void *priv)
+{
+ struct lib80211_ccmp_data *_priv = priv;
+ if (_priv && _priv->tfm)
+ crypto_free_cipher(_priv->tfm);
+ kfree(priv);
+}
+
+static inline void xor_block(u8 * b, u8 * a, size_t len)
+{
+ int i;
+ for (i = 0; i < len; i++)
+ b[i] ^= a[i];
+}
+
+static void ccmp_init_blocks(struct crypto_cipher *tfm,
+ struct ieee80211_hdr *hdr,
+ u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
+{
+ u8 *pos, qc = 0;
+ size_t aad_len;
+ int a4_included, qc_included;
+ u8 aad[2 * AES_BLOCK_LEN];
+
+ a4_included = ieee80211_has_a4(hdr->frame_control);
+ qc_included = ieee80211_is_data_qos(hdr->frame_control);
+
+ aad_len = 22;
+ if (a4_included)
+ aad_len += 6;
+ if (qc_included) {
+ pos = (u8 *) & hdr->addr4;
+ if (a4_included)
+ pos += 6;
+ qc = *pos & 0x0f;
+ aad_len += 2;
+ }
+
+ /* CCM Initial Block:
+ * Flag (Include authentication header, M=3 (8-octet MIC),
+ * L=1 (2-octet Dlen))
+ * Nonce: 0x00 | A2 | PN
+ * Dlen */
+ b0[0] = 0x59;
+ b0[1] = qc;
+ memcpy(b0 + 2, hdr->addr2, ETH_ALEN);
+ memcpy(b0 + 8, pn, CCMP_PN_LEN);
+ b0[14] = (dlen >> 8) & 0xff;
+ b0[15] = dlen & 0xff;
+
+ /* AAD:
+ * FC with bits 4..6 and 11..13 masked to zero; 14 is always one
+ * A1 | A2 | A3
+ * SC with bits 4..15 (seq#) masked to zero
+ * A4 (if present)
+ * QC (if present)
+ */
+ pos = (u8 *) hdr;
+ aad[0] = 0; /* aad_len >> 8 */
+ aad[1] = aad_len & 0xff;
+ aad[2] = pos[0] & 0x8f;
+ aad[3] = pos[1] & 0xc7;
+ memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN);
+ pos = (u8 *) & hdr->seq_ctrl;
+ aad[22] = pos[0] & 0x0f;
+ aad[23] = 0; /* all bits masked */
+ memset(aad + 24, 0, 8);
+ if (a4_included)
+ memcpy(aad + 24, hdr->addr4, ETH_ALEN);
+ if (qc_included) {
+ aad[a4_included ? 30 : 24] = qc;
+ /* rest of QC masked */
+ }
+
+ /* Start with the first block and AAD */
+ lib80211_ccmp_aes_encrypt(tfm, b0, auth);
+ xor_block(auth, aad, AES_BLOCK_LEN);
+ lib80211_ccmp_aes_encrypt(tfm, auth, auth);
+ xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN);
+ lib80211_ccmp_aes_encrypt(tfm, auth, auth);
+ b0[0] &= 0x07;
+ b0[14] = b0[15] = 0;
+ lib80211_ccmp_aes_encrypt(tfm, b0, s0);
+}
+
+static int lib80211_ccmp_hdr(struct sk_buff *skb, int hdr_len,
+ u8 *aeskey, int keylen, void *priv)
+{
+ struct lib80211_ccmp_data *key = priv;
+ int i;
+ u8 *pos;
+
+ if (skb_headroom(skb) < CCMP_HDR_LEN || skb->len < hdr_len)
+ return -1;
+
+ if (aeskey != NULL && keylen >= CCMP_TK_LEN)
+ memcpy(aeskey, key->key, CCMP_TK_LEN);
+
+ pos = skb_push(skb, CCMP_HDR_LEN);
+ memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
+ pos += hdr_len;
+
+ i = CCMP_PN_LEN - 1;
+ while (i >= 0) {
+ key->tx_pn[i]++;
+ if (key->tx_pn[i] != 0)
+ break;
+ i--;
+ }
+
+ *pos++ = key->tx_pn[5];
+ *pos++ = key->tx_pn[4];
+ *pos++ = 0;
+ *pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */ ;
+ *pos++ = key->tx_pn[3];
+ *pos++ = key->tx_pn[2];
+ *pos++ = key->tx_pn[1];
+ *pos++ = key->tx_pn[0];
+
+ return CCMP_HDR_LEN;
+}
+
+static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+ struct lib80211_ccmp_data *key = priv;
+ int data_len, i, blocks, last, len;
+ u8 *pos, *mic;
+ struct ieee80211_hdr *hdr;
+ u8 *b0 = key->tx_b0;
+ u8 *b = key->tx_b;
+ u8 *e = key->tx_e;
+ u8 *s0 = key->tx_s0;
+
+ if (skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len)
+ return -1;
+
+ data_len = skb->len - hdr_len;
+ len = lib80211_ccmp_hdr(skb, hdr_len, NULL, 0, priv);
+ if (len < 0)
+ return -1;
+
+ pos = skb->data + hdr_len + CCMP_HDR_LEN;
+ mic = skb_put(skb, CCMP_MIC_LEN);
+ hdr = (struct ieee80211_hdr *)skb->data;
+ ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
+
+ blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
+ last = data_len % AES_BLOCK_LEN;
+
+ for (i = 1; i <= blocks; i++) {
+ len = (i == blocks && last) ? last : AES_BLOCK_LEN;
+ /* Authentication */
+ xor_block(b, pos, len);
+ lib80211_ccmp_aes_encrypt(key->tfm, b, b);
+ /* Encryption, with counter */
+ b0[14] = (i >> 8) & 0xff;
+ b0[15] = i & 0xff;
+ lib80211_ccmp_aes_encrypt(key->tfm, b0, e);
+ xor_block(pos, e, len);
+ pos += len;
+ }
+
+ for (i = 0; i < CCMP_MIC_LEN; i++)
+ mic[i] = b[i] ^ s0[i];
+
+ return 0;
+}
+
+/*
+ * deal with seq counter wrapping correctly.
+ * refer to timer_after() for jiffies wrapping handling
+ */
+static inline int ccmp_replay_check(u8 *pn_n, u8 *pn_o)
+{
+ u32 iv32_n, iv16_n;
+ u32 iv32_o, iv16_o;
+
+ iv32_n = (pn_n[0] << 24) | (pn_n[1] << 16) | (pn_n[2] << 8) | pn_n[3];
+ iv16_n = (pn_n[4] << 8) | pn_n[5];
+
+ iv32_o = (pn_o[0] << 24) | (pn_o[1] << 16) | (pn_o[2] << 8) | pn_o[3];
+ iv16_o = (pn_o[4] << 8) | pn_o[5];
+
+ if ((s32)iv32_n - (s32)iv32_o < 0 ||
+ (iv32_n == iv32_o && iv16_n <= iv16_o))
+ return 1;
+ return 0;
+}
+
+static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+ struct lib80211_ccmp_data *key = priv;
+ u8 keyidx, *pos;
+ struct ieee80211_hdr *hdr;
+ u8 *b0 = key->rx_b0;
+ u8 *b = key->rx_b;
+ u8 *a = key->rx_a;
+ u8 pn[6];
+ int i, blocks, last, len;
+ size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN;
+ u8 *mic = skb->data + skb->len - CCMP_MIC_LEN;
+
+ if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) {
+ key->dot11RSNAStatsCCMPFormatErrors++;
+ return -1;
+ }
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+ pos = skb->data + hdr_len;
+ keyidx = pos[3];
+ if (!(keyidx & (1 << 5))) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "CCMP: received packet without ExtIV"
+ " flag from %pM\n", hdr->addr2);
+ }
+ key->dot11RSNAStatsCCMPFormatErrors++;
+ return -2;
+ }
+ keyidx >>= 6;
+ if (key->key_idx != keyidx) {
+ printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame "
+ "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv);
+ return -6;
+ }
+ if (!key->key_set) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "CCMP: received packet from %pM"
+ " with keyid=%d that does not have a configured"
+ " key\n", hdr->addr2, keyidx);
+ }
+ return -3;
+ }
+
+ pn[0] = pos[7];
+ pn[1] = pos[6];
+ pn[2] = pos[5];
+ pn[3] = pos[4];
+ pn[4] = pos[1];
+ pn[5] = pos[0];
+ pos += 8;
+
+ if (ccmp_replay_check(pn, key->rx_pn)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "CCMP: replay detected: STA=%pM "
+ "previous PN %02x%02x%02x%02x%02x%02x "
+ "received PN %02x%02x%02x%02x%02x%02x\n",
+ hdr->addr2,
+ key->rx_pn[0], key->rx_pn[1], key->rx_pn[2],
+ key->rx_pn[3], key->rx_pn[4], key->rx_pn[5],
+ pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
+ }
+ key->dot11RSNAStatsCCMPReplays++;
+ return -4;
+ }
+
+ ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b);
+ xor_block(mic, b, CCMP_MIC_LEN);
+
+ blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
+ last = data_len % AES_BLOCK_LEN;
+
+ for (i = 1; i <= blocks; i++) {
+ len = (i == blocks && last) ? last : AES_BLOCK_LEN;
+ /* Decrypt, with counter */
+ b0[14] = (i >> 8) & 0xff;
+ b0[15] = i & 0xff;
+ lib80211_ccmp_aes_encrypt(key->tfm, b0, b);
+ xor_block(pos, b, len);
+ /* Authentication */
+ xor_block(a, pos, len);
+ lib80211_ccmp_aes_encrypt(key->tfm, a, a);
+ pos += len;
+ }
+
+ if (memcmp(mic, a, CCMP_MIC_LEN) != 0) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "CCMP: decrypt failed: STA="
+ "%pM\n", hdr->addr2);
+ }
+ key->dot11RSNAStatsCCMPDecryptErrors++;
+ return -5;
+ }
+
+ memcpy(key->rx_pn, pn, CCMP_PN_LEN);
+
+ /* Remove hdr and MIC */
+ memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len);
+ skb_pull(skb, CCMP_HDR_LEN);
+ skb_trim(skb, skb->len - CCMP_MIC_LEN);
+
+ return keyidx;
+}
+
+static int lib80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
+{
+ struct lib80211_ccmp_data *data = priv;
+ int keyidx;
+ struct crypto_cipher *tfm = data->tfm;
+
+ keyidx = data->key_idx;
+ memset(data, 0, sizeof(*data));
+ data->key_idx = keyidx;
+ data->tfm = tfm;
+ if (len == CCMP_TK_LEN) {
+ memcpy(data->key, key, CCMP_TK_LEN);
+ data->key_set = 1;
+ if (seq) {
+ data->rx_pn[0] = seq[5];
+ data->rx_pn[1] = seq[4];
+ data->rx_pn[2] = seq[3];
+ data->rx_pn[3] = seq[2];
+ data->rx_pn[4] = seq[1];
+ data->rx_pn[5] = seq[0];
+ }
+ crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN);
+ } else if (len == 0)
+ data->key_set = 0;
+ else
+ return -1;
+
+ return 0;
+}
+
+static int lib80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv)
+{
+ struct lib80211_ccmp_data *data = priv;
+
+ if (len < CCMP_TK_LEN)
+ return -1;
+
+ if (!data->key_set)
+ return 0;
+ memcpy(key, data->key, CCMP_TK_LEN);
+
+ if (seq) {
+ seq[0] = data->tx_pn[5];
+ seq[1] = data->tx_pn[4];
+ seq[2] = data->tx_pn[3];
+ seq[3] = data->tx_pn[2];
+ seq[4] = data->tx_pn[1];
+ seq[5] = data->tx_pn[0];
+ }
+
+ return CCMP_TK_LEN;
+}
+
+static char *lib80211_ccmp_print_stats(char *p, void *priv)
+{
+ struct lib80211_ccmp_data *ccmp = priv;
+
+ p += sprintf(p, "key[%d] alg=CCMP key_set=%d "
+ "tx_pn=%02x%02x%02x%02x%02x%02x "
+ "rx_pn=%02x%02x%02x%02x%02x%02x "
+ "format_errors=%d replays=%d decrypt_errors=%d\n",
+ ccmp->key_idx, ccmp->key_set,
+ ccmp->tx_pn[0], ccmp->tx_pn[1], ccmp->tx_pn[2],
+ ccmp->tx_pn[3], ccmp->tx_pn[4], ccmp->tx_pn[5],
+ ccmp->rx_pn[0], ccmp->rx_pn[1], ccmp->rx_pn[2],
+ ccmp->rx_pn[3], ccmp->rx_pn[4], ccmp->rx_pn[5],
+ ccmp->dot11RSNAStatsCCMPFormatErrors,
+ ccmp->dot11RSNAStatsCCMPReplays,
+ ccmp->dot11RSNAStatsCCMPDecryptErrors);
+
+ return p;
+}
+
+static struct lib80211_crypto_ops lib80211_crypt_ccmp = {
+ .name = "CCMP",
+ .init = lib80211_ccmp_init,
+ .deinit = lib80211_ccmp_deinit,
+ .build_iv = lib80211_ccmp_hdr,
+ .encrypt_mpdu = lib80211_ccmp_encrypt,
+ .decrypt_mpdu = lib80211_ccmp_decrypt,
+ .encrypt_msdu = NULL,
+ .decrypt_msdu = NULL,
+ .set_key = lib80211_ccmp_set_key,
+ .get_key = lib80211_ccmp_get_key,
+ .print_stats = lib80211_ccmp_print_stats,
+ .extra_mpdu_prefix_len = CCMP_HDR_LEN,
+ .extra_mpdu_postfix_len = CCMP_MIC_LEN,
+ .owner = THIS_MODULE,
+};
+
+static int __init lib80211_crypto_ccmp_init(void)
+{
+ return lib80211_register_crypto_ops(&lib80211_crypt_ccmp);
+}
+
+static void __exit lib80211_crypto_ccmp_exit(void)
+{
+ lib80211_unregister_crypto_ops(&lib80211_crypt_ccmp);
+}
+
+module_init(lib80211_crypto_ccmp_init);
+module_exit(lib80211_crypto_ccmp_exit);
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
new file mode 100644
index 00000000000..7e8e22bfed9
--- /dev/null
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -0,0 +1,784 @@
+/*
+ * lib80211 crypt: host-based TKIP encryption implementation for lib80211
+ *
+ * Copyright (c) 2003-2004, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2008, John W. Linville <linville@tuxdriver.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/err.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/scatterlist.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/mm.h>
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <asm/string.h>
+
+#include <linux/wireless.h>
+#include <linux/ieee80211.h>
+#include <net/iw_handler.h>
+
+#include <linux/crypto.h>
+#include <linux/crc32.h>
+
+#include <net/lib80211.h>
+
+MODULE_AUTHOR("Jouni Malinen");
+MODULE_DESCRIPTION("lib80211 crypt: TKIP");
+MODULE_LICENSE("GPL");
+
+struct lib80211_tkip_data {
+#define TKIP_KEY_LEN 32
+ u8 key[TKIP_KEY_LEN];
+ int key_set;
+
+ u32 tx_iv32;
+ u16 tx_iv16;
+ u16 tx_ttak[5];
+ int tx_phase1_done;
+
+ u32 rx_iv32;
+ u16 rx_iv16;
+ u16 rx_ttak[5];
+ int rx_phase1_done;
+ u32 rx_iv32_new;
+ u16 rx_iv16_new;
+
+ u32 dot11RSNAStatsTKIPReplays;
+ u32 dot11RSNAStatsTKIPICVErrors;
+ u32 dot11RSNAStatsTKIPLocalMICFailures;
+
+ int key_idx;
+
+ struct crypto_blkcipher *rx_tfm_arc4;
+ struct crypto_hash *rx_tfm_michael;
+ struct crypto_blkcipher *tx_tfm_arc4;
+ struct crypto_hash *tx_tfm_michael;
+
+ /* scratch buffers for virt_to_page() (crypto API) */
+ u8 rx_hdr[16], tx_hdr[16];
+
+ unsigned long flags;
+};
+
+static unsigned long lib80211_tkip_set_flags(unsigned long flags, void *priv)
+{
+ struct lib80211_tkip_data *_priv = priv;
+ unsigned long old_flags = _priv->flags;
+ _priv->flags = flags;
+ return old_flags;
+}
+
+static unsigned long lib80211_tkip_get_flags(void *priv)
+{
+ struct lib80211_tkip_data *_priv = priv;
+ return _priv->flags;
+}
+
+static void *lib80211_tkip_init(int key_idx)
+{
+ struct lib80211_tkip_data *priv;
+
+ priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
+ if (priv == NULL)
+ goto fail;
+
+ priv->key_idx = key_idx;
+
+ priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tx_tfm_arc4)) {
+ printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
+ "crypto API arc4\n");
+ priv->tx_tfm_arc4 = NULL;
+ goto fail;
+ }
+
+ priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tx_tfm_michael)) {
+ printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
+ "crypto API michael_mic\n");
+ priv->tx_tfm_michael = NULL;
+ goto fail;
+ }
+
+ priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->rx_tfm_arc4)) {
+ printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
+ "crypto API arc4\n");
+ priv->rx_tfm_arc4 = NULL;
+ goto fail;
+ }
+
+ priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->rx_tfm_michael)) {
+ printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
+ "crypto API michael_mic\n");
+ priv->rx_tfm_michael = NULL;
+ goto fail;
+ }
+
+ return priv;
+
+ fail:
+ if (priv) {
+ if (priv->tx_tfm_michael)
+ crypto_free_hash(priv->tx_tfm_michael);
+ if (priv->tx_tfm_arc4)
+ crypto_free_b