Host AP mode that allows the card to act as an IEEE 802.11
access point.
- In addition, this includes generic IEEE 802.11 code, e.g., for
- WEP/TKIP/CCMP encryption that can be shared with other drivers.
-
See <http://hostap.epitest.fi/> for more information about the
Host AP driver configuration and tools. This site includes
information and tools (hostapd and wpa_supplicant) for WPA/WPA2
The driver can be compiled as a module and it will be called
"hostap.ko".
-config HOSTAP_WEP
- tristate "IEEE 802.11 WEP encryption"
- depends on HOSTAP
- select CRYPTO
- ---help---
- Software implementation of IEEE 802.11 WEP encryption.
-
- This can be compiled as a modules and it will be called
- "hostap_crypt_wep.ko".
-
-config HOSTAP_TKIP
- tristate "IEEE 802.11 TKIP encryption"
- depends on HOSTAP
- select CRYPTO
- ---help---
- Software implementation of IEEE 802.11 TKIP encryption.
-
- This can be compiled as a modules and it will be called
- "hostap_crypt_tkip.ko".
-
-config HOSTAP_CCMP
- tristate "IEEE 802.11 CCMP encryption"
- depends on HOSTAP
- select CRYPTO
- ---help---
- Software implementation of IEEE 802.11 CCMP encryption.
-
- This can be compiled as a modules and it will be called
- "hostap_crypt_ccmp.ko".
-
config HOSTAP_FIRMWARE
bool "Support downloading firmware images with Host AP driver"
depends on HOSTAP
obj-$(CONFIG_HOSTAP) += hostap.o
-obj-$(CONFIG_HOSTAP_WEP) += hostap_crypt_wep.o
-obj-$(CONFIG_HOSTAP_TKIP) += hostap_crypt_tkip.o
-obj-$(CONFIG_HOSTAP_CCMP) += hostap_crypt_ccmp.o
obj-$(CONFIG_HOSTAP_CS) += hostap_cs.o
obj-$(CONFIG_HOSTAP_PLX) += hostap_plx.o
*
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* <jkmaline@cc.hut.fi>
- * Copyright (c) 2002-2004, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi>
*
* 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
#include "hostap_80211.h"
#include "hostap_ap.h"
#include "hostap.h"
-#include "hostap_crypt.h"
MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Host AP common routines");
MODULE_LICENSE("GPL");
MODULE_VERSION(PRISM2_VERSION);
-/* Old hostap_crypt module is now part of hostap module. */
-#include "hostap_crypt.c"
-
#define TX_TIMEOUT (2 * HZ)
#define PRISM2_MAX_FRAME_SIZE 2304
static int prism2_hostapd(struct ap_data *ap,
struct prism2_hostapd_param *param);
static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
- struct prism2_crypt_data ***crypt);
+ struct ieee80211_crypt_data ***crypt);
static void ap_control_kickall(struct ap_data *ap);
#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
static int ap_control_add_mac(struct mac_restrictions *mac_restrictions,
static int __init hostap_init(void)
{
- hostap_crypto_init();
-
if (proc_net != NULL) {
hostap_proc = proc_mkdir("hostap", proc_net);
if (!hostap_proc)
hostap_proc = NULL;
remove_proc_entry("hostap", proc_net);
}
-
- hostap_crypto_deinit();
}
int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev);
int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev);
struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
- struct prism2_crypt_data *crypt);
+ struct ieee80211_crypt_data *crypt);
int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
#endif /* HOSTAP_80211_H */
/* Called only as a tasklet (software IRQ) */
static inline int
hostap_rx_frame_decrypt(local_info_t *local, struct sk_buff *skb,
- struct prism2_crypt_data *crypt)
+ struct ieee80211_crypt_data *crypt)
{
struct hostap_ieee80211_hdr *hdr;
int res, hdrlen;
/* Called only as a tasklet (software IRQ) */
static inline int
hostap_rx_frame_decrypt_msdu(local_info_t *local, struct sk_buff *skb,
- int keyidx, struct prism2_crypt_data *crypt)
+ int keyidx, struct ieee80211_crypt_data *crypt)
{
struct hostap_ieee80211_hdr *hdr;
int res, hdrlen;
int from_assoc_ap = 0;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
- struct prism2_crypt_data *crypt = NULL;
+ struct ieee80211_crypt_data *crypt = NULL;
void *sta = NULL;
int keyidx = 0;
/* Called only from software IRQ */
struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
- struct prism2_crypt_data *crypt)
+ struct ieee80211_crypt_data *crypt)
{
struct hostap_interface *iface;
local_info_t *local;
* Intersil Prism2 driver with Host AP (software access point) support
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* <jkmaline@cc.hut.fi>
- * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi>
*
* This file is to be included into hostap.c when S/W AP functionality is
* compiled.
static void ap_crypt_init(struct ap_data *ap)
{
- ap->crypt = hostap_get_crypto_ops("WEP");
+ ap->crypt = ieee80211_get_crypto_ops("WEP");
if (ap->crypt) {
if (ap->crypt->init) {
if (ap->crypt == NULL) {
printk(KERN_WARNING "AP could not initialize WEP: load module "
- "hostap_crypt_wep.o\n");
+ "ieee80211_crypt_wep.ko\n");
}
}
u16 auth_alg, auth_transaction, status_code, *pos;
u16 resp = WLAN_STATUS_SUCCESS, fc;
struct sta_info *sta = NULL;
- struct prism2_crypt_data *crypt;
+ struct ieee80211_crypt_data *crypt;
char *txt = "";
len = skb->len - IEEE80211_MGMT_HDR_LEN;
/* Called only as a tasklet (software IRQ) */
int hostap_handle_sta_crypto(local_info_t *local,
struct hostap_ieee80211_hdr *hdr,
- struct prism2_crypt_data **crypt, void **sta_ptr)
+ struct ieee80211_crypt_data **crypt,
+ void **sta_ptr)
{
struct sta_info *sta;
static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
- struct prism2_crypt_data ***crypt)
+ struct ieee80211_crypt_data ***crypt)
{
struct sta_info *sta;
u32 tx_since_last_failure;
u32 tx_consecutive_exc;
- struct prism2_crypt_data *crypt;
+ struct ieee80211_crypt_data *crypt;
int ap; /* whether this station is an AP */
/* WEP operations for generating challenges to be used with shared key
* authentication */
- struct hostap_crypto_ops *crypt;
+ struct ieee80211_crypto_ops *crypt;
void *crypt_priv;
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
};
struct hostap_tx_data {
struct sk_buff *skb;
int host_encrypt;
- struct prism2_crypt_data *crypt;
+ struct ieee80211_crypt_data *crypt;
void *sta_ptr;
};
ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx);
int wds);
int hostap_handle_sta_crypto(local_info_t *local,
struct hostap_ieee80211_hdr *hdr,
- struct prism2_crypt_data **crypt, void **sta_ptr);
+ struct ieee80211_crypt_data **crypt,
+ void **sta_ptr);
int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr);
int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr);
int hostap_add_sta(struct ap_data *ap, u8 *sta_addr);
+++ /dev/null
-/*
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- *
- * 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.
- */
-
-struct hostap_crypto_alg {
- struct list_head list;
- struct hostap_crypto_ops *ops;
-};
-
-
-struct hostap_crypto {
- struct list_head algs;
- spinlock_t lock;
-};
-
-static struct hostap_crypto *hcrypt;
-
-
-int hostap_register_crypto_ops(struct hostap_crypto_ops *ops)
-{
- unsigned long flags;
- struct hostap_crypto_alg *alg;
-
- if (hcrypt == NULL)
- return -1;
-
- alg = (struct hostap_crypto_alg *) kmalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL)
- return -ENOMEM;
-
- memset(alg, 0, sizeof(*alg));
- alg->ops = ops;
-
- spin_lock_irqsave(&hcrypt->lock, flags);
- list_add(&alg->list, &hcrypt->algs);
- spin_unlock_irqrestore(&hcrypt->lock, flags);
-
- printk(KERN_DEBUG "hostap_crypt: registered algorithm '%s'\n",
- ops->name);
-
- return 0;
-}
-
-
-int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops)
-{
- unsigned long flags;
- struct list_head *ptr;
- struct hostap_crypto_alg *del_alg = NULL;
-
- if (hcrypt == NULL)
- return -1;
-
- spin_lock_irqsave(&hcrypt->lock, flags);
- for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
- struct hostap_crypto_alg *alg =
- (struct hostap_crypto_alg *) ptr;
- if (alg->ops == ops) {
- list_del(&alg->list);
- del_alg = alg;
- break;
- }
- }
- spin_unlock_irqrestore(&hcrypt->lock, flags);
-
- if (del_alg) {
- printk(KERN_DEBUG "hostap_crypt: unregistered algorithm "
- "'%s'\n", ops->name);
- kfree(del_alg);
- }
-
- return del_alg ? 0 : -1;
-}
-
-
-struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name)
-{
- unsigned long flags;
- struct list_head *ptr;
- struct hostap_crypto_alg *found_alg = NULL;
-
- if (hcrypt == NULL)
- return NULL;
-
- spin_lock_irqsave(&hcrypt->lock, flags);
- for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
- struct hostap_crypto_alg *alg =
- (struct hostap_crypto_alg *) ptr;
- if (strcmp(alg->ops->name, name) == 0) {
- found_alg = alg;
- break;
- }
- }
- spin_unlock_irqrestore(&hcrypt->lock, flags);
-
- if (found_alg)
- return found_alg->ops;
- else
- return NULL;
-}
-
-
-static void * hostap_crypt_null_init(int keyidx) { return (void *) 1; }
-static void hostap_crypt_null_deinit(void *priv) {}
-
-static struct hostap_crypto_ops hostap_crypt_null = {
- .name = "NULL",
- .init = hostap_crypt_null_init,
- .deinit = hostap_crypt_null_deinit,
- .encrypt_mpdu = NULL,
- .decrypt_mpdu = NULL,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = NULL,
- .get_key = NULL,
- .extra_prefix_len = 0,
- .extra_postfix_len = 0
-};
-
-
-static int __init hostap_crypto_init(void)
-{
- hcrypt = (struct hostap_crypto *) kmalloc(sizeof(*hcrypt), GFP_KERNEL);
- if (hcrypt == NULL)
- return -ENOMEM;
-
- memset(hcrypt, 0, sizeof(*hcrypt));
- INIT_LIST_HEAD(&hcrypt->algs);
- spin_lock_init(&hcrypt->lock);
-
- (void) hostap_register_crypto_ops(&hostap_crypt_null);
-
- return 0;
-}
-
-
-static void __exit hostap_crypto_deinit(void)
-{
- struct list_head *ptr, *n;
-
- if (hcrypt == NULL)
- return;
-
- for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
- ptr = n, n = ptr->next) {
- struct hostap_crypto_alg *alg =
- (struct hostap_crypto_alg *) ptr;
- list_del(ptr);
- printk(KERN_DEBUG "hostap_crypt: unregistered algorithm "
- "'%s' (deinit)\n", alg->ops->name);
- kfree(alg);
- }
-
- kfree(hcrypt);
-}
-
-
-EXPORT_SYMBOL(hostap_register_crypto_ops);
-EXPORT_SYMBOL(hostap_unregister_crypto_ops);
-EXPORT_SYMBOL(hostap_get_crypto_ops);
+++ /dev/null
-#ifndef PRISM2_CRYPT_H
-#define PRISM2_CRYPT_H
-
-struct hostap_crypto_ops {
- char *name;
-
- /* init new crypto context (e.g., allocate private data space,
- * select IV, etc.); returns NULL on failure or pointer to allocated
- * private data on success */
- void * (*init)(int keyidx);
-
- /* deinitialize crypto context and free allocated private data */
- void (*deinit)(void *priv);
-
- /* encrypt/decrypt return < 0 on error or >= 0 on success. The return
- * value from decrypt_mpdu is passed as the keyidx value for
- * decrypt_msdu. skb must have enough head and tail room for the
- * encryption; if not, error will be returned; these functions are
- * called for all MPDUs (i.e., fragments).
- */
- int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
- int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-
- /* These functions are called for full MSDUs, i.e. full frames.
- * These can be NULL if full MSDU operations are not needed. */
- int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
- int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
- void *priv);
-
- int (*set_key)(void *key, int len, u8 *seq, void *priv);
- int (*get_key)(void *key, int len, u8 *seq, void *priv);
-
- /* procfs handler for printing out key information and possible
- * statistics */
- char * (*print_stats)(char *p, void *priv);
-
- /* maximum number of bytes added by encryption; encrypt buf is
- * allocated with extra_prefix_len bytes, copy of in_buf, and
- * extra_postfix_len; encrypt need not use all this space, but
- * the result must start at the beginning of the buffer and correct
- * length must be returned */
- int extra_prefix_len, extra_postfix_len;
-};
-
-
-int hostap_register_crypto_ops(struct hostap_crypto_ops *ops);
-int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops);
-struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name);
-
-#endif /* PRISM2_CRYPT_H */
+++ /dev/null
-/*
- * Host AP crypt: host-based CCMP encryption implementation for Host AP driver
- *
- * Copyright (c) 2003-2004, Jouni Malinen <jkmaline@cc.hut.fi>
- *
- * 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/config.h>
-#include <linux/version.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 <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <asm/string.h>
-
-#include "hostap_crypt.h"
-#include "hostap_wlan.h"
-#include "hostap_80211.h"
-
-#ifndef CONFIG_CRYPTO
-#error CONFIG_CRYPTO is required to build this module.
-#endif
-#include <linux/crypto.h>
-#include <asm/scatterlist.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: CCMP");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(PRISM2_VERSION);
-
-
-#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 hostap_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_tfm *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];
-};
-
-
-void hostap_ccmp_aes_encrypt(struct crypto_tfm *tfm,
- const u8 pt[16], u8 ct[16])
-{
- struct scatterlist src, dst;
-
- src.page = virt_to_page(pt);
- src.offset = offset_in_page(pt);
- src.length = AES_BLOCK_LEN;
-
- dst.page = virt_to_page(ct);
- dst.offset = offset_in_page(ct);
- dst.length = AES_BLOCK_LEN;
-
- crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN);
-}
-
-
-static void * hostap_ccmp_init(int key_idx)
-{
- struct hostap_ccmp_data *priv;
-
- if (!try_module_get(THIS_MODULE))
- return NULL;
-
- priv = (struct hostap_ccmp_data *) kmalloc(sizeof(*priv), GFP_ATOMIC);
- if (priv == NULL) {
- goto fail;
- }
- memset(priv, 0, sizeof(*priv));
- priv->key_idx = key_idx;
-
- priv->tfm = crypto_alloc_tfm("aes", 0);
- if (priv->tfm == NULL) {
- printk(KERN_DEBUG "hostap_crypt_ccmp: could not allocate "
- "crypto API aes\n");
- goto fail;
- }
-
- return priv;
-
-fail:
- if (priv) {
- if (priv->tfm)
- crypto_free_tfm(priv->tfm);
- kfree(priv);
- }
- module_put(THIS_MODULE);
- return NULL;
-}
-
-
-static void hostap_ccmp_deinit(void *priv)
-{
- struct hostap_ccmp_data *_priv = priv;
- if (_priv && _priv->tfm)
- crypto_free_tfm(_priv->tfm);
- kfree(priv);
- module_put(THIS_MODULE);
-}
-
-
-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_tfm *tfm,
- struct hostap_ieee80211_hdr *hdr,
- u8 *pn, size_t dlen, u8 *b0, u8 *auth,
- u8 *s0)
-{
- u8 *pos, qc = 0;
- size_t aad_len;
- u16 fc;
- int a4_included, qc_included;
- u8 aad[2 * AES_BLOCK_LEN];
-
- fc = le16_to_cpu(hdr->frame_control);
- a4_included = ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
- (WLAN_FC_TODS | WLAN_FC_FROMDS));
- qc_included = ((HOSTAP_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA) &&
- (HOSTAP_FC_GET_STYPE(fc) & 0x08));
- 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 */
- hostap_ccmp_aes_encrypt(tfm, b0, auth);
- xor_block(auth, aad, AES_BLOCK_LEN);
- hostap_ccmp_aes_encrypt(tfm, auth, auth);
- xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN);
- hostap_ccmp_aes_encrypt(tfm, auth, auth);
- b0[0] &= 0x07;
- b0[14] = b0[15] = 0;
- hostap_ccmp_aes_encrypt(tfm, b0, s0);
-}
-
-
-static int hostap_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct hostap_ccmp_data *key = priv;
- int data_len, i, blocks, last, len;
- u8 *pos, *mic;
- struct hostap_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_headroom(skb) < CCMP_HDR_LEN ||
- skb_tailroom(skb) < CCMP_MIC_LEN ||
- skb->len < hdr_len)
- return -1;
-
- data_len = skb->len - hdr_len;
- pos = skb_push(skb, CCMP_HDR_LEN);
- memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
- pos += hdr_len;
- mic = skb_put(skb, CCMP_MIC_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];
-
- hdr = (struct hostap_ieee80211_hdr *) skb->data;
- ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
-
- blocks = (data_len + AES_BLOCK_LEN - 1) / 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);
- hostap_ccmp_aes_encrypt(key->tfm, b, b);
- /* Encryption, with counter */
- b0[14] = (i >> 8) & 0xff;
- b0[15] = i & 0xff;
- hostap_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;
-}
-
-
-static int hostap_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct hostap_ccmp_data *key = priv;
- u8 keyidx, *pos;
- struct hostap_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 hostap_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 " MACSTR "\n", MAC2STR(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 " MACSTR
- " with keyid=%d that does not have a configured"
- " key\n", MAC2STR(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 (memcmp(pn, key->rx_pn, CCMP_PN_LEN) <= 0) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "CCMP: replay detected: STA=" MACSTR
- " previous PN %02x%02x%02x%02x%02x%02x "
- "received PN %02x%02x%02x%02x%02x%02x\n",
- MAC2STR(hdr->addr2), MAC2STR(key->rx_pn),
- MAC2STR(pn));
- }
- key->dot11RSNAStatsCCMPReplays++;
- return -4;
- }
-
- ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b);
- xor_block(mic, b, CCMP_MIC_LEN);
-
- blocks = (data_len + AES_BLOCK_LEN - 1) / 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;
- hostap_ccmp_aes_encrypt(key->tfm, b0, b);
- xor_block(pos, b, len);
- /* Authentication */
- xor_block(a, pos, len);
- hostap_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="
- MACSTR "\n", MAC2STR(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 hostap_ccmp_set_key(void *key, int len, u8 *seq, void *priv)
-{
- struct hostap_ccmp_data *data = priv;
- int keyidx;
- struct crypto_tfm *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 hostap_ccmp_get_key(void *key, int len, u8 *seq, void *priv)
-{
- struct hostap_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 * hostap_ccmp_print_stats(char *p, void *priv)
-{
- struct hostap_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,
- MAC2STR(ccmp->tx_pn), MAC2STR(ccmp->rx_pn),
- ccmp->dot11RSNAStatsCCMPFormatErrors,
- ccmp->dot11RSNAStatsCCMPReplays,
- ccmp->dot11RSNAStatsCCMPDecryptErrors);
-
- return p;
-}
-
-
-static struct hostap_crypto_ops hostap_crypt_ccmp = {
- .name = "CCMP",
- .init = hostap_ccmp_init,
- .deinit = hostap_ccmp_deinit,
- .encrypt_mpdu = hostap_ccmp_encrypt,
- .decrypt_mpdu = hostap_ccmp_decrypt,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = hostap_ccmp_set_key,
- .get_key = hostap_ccmp_get_key,
- .print_stats = hostap_ccmp_print_stats,
- .extra_prefix_len = CCMP_HDR_LEN,
- .extra_postfix_len = CCMP_MIC_LEN
-};
-
-
-static int __init hostap_crypto_ccmp_init(void)
-{
- if (hostap_register_crypto_ops(&hostap_crypt_ccmp) < 0)
- return -1;
-
- return 0;
-}
-
-
-static void __exit hostap_crypto_ccmp_exit(void)
-{
- hostap_unregister_crypto_ops(&hostap_crypt_ccmp);
-}
-
-
-module_init(hostap_crypto_ccmp_init);
-module_exit(hostap_crypto_ccmp_exit);
+++ /dev/null
-/*
- * Host AP crypt: host-based TKIP encryption implementation for Host AP driver
- *
- * Copyright (c) 2003-2004, Jouni Malinen <jkmaline@cc.hut.fi>
- *
- * 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/config.h>
-#include <linux/version.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 <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <asm/string.h>
-
-#include "hostap_crypt.h"
-#include "hostap_wlan.h"
-#include "hostap_80211.h"
-#include "hostap_config.h"
-
-#ifndef CONFIG_CRYPTO
-#error CONFIG_CRYPTO is required to build this module.
-#endif
-#include <linux/crypto.h>
-#include <asm/scatterlist.h>
-#include <linux/crc32.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: TKIP");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(PRISM2_VERSION);
-
-
-struct hostap_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_tfm *tfm_arc4;
- struct crypto_tfm *tfm_michael;
-
- /* scratch buffers for virt_to_page() (crypto API) */
- u8 rx_hdr[16], tx_hdr[16];
-};
-
-
-static void * hostap_tkip_init(int key_idx)
-{
- struct hostap_tkip_data *priv;
-
- if (!try_module_get(THIS_MODULE))
- return NULL;
-
- priv = (struct hostap_tkip_data *) kmalloc(sizeof(*priv), GFP_ATOMIC);
- if (priv == NULL)
- goto fail;
- memset(priv, 0, sizeof(*priv));
- priv->key_idx = key_idx;
-
- priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
- if (priv->tfm_arc4 == NULL) {
- printk(KERN_DEBUG "hostap_crypt_tkip: could not allocate "
- "crypto API arc4\n");
- goto fail;
- }
-
- priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0);
- if (priv->tfm_michael == NULL) {
- printk(KERN_DEBUG "hostap_crypt_tkip: could not allocate "
- "crypto API michael_mic\n");
- goto fail;
- }
-
- return priv;
-
-fail:
- if (priv) {
- if (priv->tfm_michael)
- crypto_free_tfm(priv->tfm_michael);
- if (priv->tfm_arc4)
- crypto_free_tfm(priv->tfm_arc4);
- kfree(priv);
- }
- module_put(THIS_MODULE);
- return NULL;
-}
-
-
-static void hostap_tkip_deinit(void *priv)
-{
- struct hostap_tkip_data *_priv = priv;
- if (_priv && _priv->tfm_michael)
- crypto_free_tfm(_priv->tfm_michael);
- if (_priv && _priv->tfm_arc4)
- crypto_free_tfm(_priv->tfm_arc4);
- kfree(priv);
- module_put(THIS_MODULE);
-}
-
-
-static inline u16 RotR1(u16 val)
-{
- return (val >> 1) | (val << 15);
-}
-
-
-static inline u8 Lo8(u16 val)
-{
- return val & 0xff;
-}
-
-
-static inline u8 Hi8(u16 val)
-{
- return val >> 8;
-}
-
-
-static inline u16 Lo16(u32 val)
-{
- return val & 0xffff;
-}
-
-
-static inline u16 Hi16(u32 val)
-{
- return val >> 16;
-}
-
-
-static inline u16 Mk16(u8 hi, u8 lo)
-{
- return lo | (((u16) hi) << 8);
-}
-
-
-static inline u16 Mk16_le(u16 *v)
-{
- return le16_to_cpu(*v);
-}
-
-
-static const u16 Sbox[256] =
-{
- 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
- 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
- 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
- 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
- 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
- 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
- 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
- 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
- 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
- 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
- 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
- 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
- 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
- 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
- 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
- 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
- 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
- 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
- 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
- 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
- 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
- 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
- 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
- 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
- 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
- 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
- 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
- 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
- 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
- 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
- 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
- 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
-};
-
-
-static inline u16 _S_(u16 v)
-{
- u16 t = Sbox[Hi8(v)];
- return Sbox[Lo8(v)] ^ ((t << 8) | (t >> 8));
-}
-
-
-#define PHASE1_LOOP_COUNT 8
-
-static void tkip_mixing_phase1(u16 *TTAK, const u8 *TK, const u8 *TA, u32 IV32)
-{
- int i, j;
-
- /* Initialize the 80-bit TTAK from TSC (IV32) and TA[0..5] */
- TTAK[0] = Lo16(IV32);
- TTAK[1] = Hi16(IV32);
- TTAK[2] = Mk16(TA[1], TA[0]);
- TTAK[3] = Mk16(TA[3], TA[2]);
- TTAK[4] = Mk16(TA[5], TA[4]);
-
- for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
- j = 2 * (i & 1);
- TTAK[0] += _S_(TTAK[4] ^ Mk16(TK[1 + j], TK[0 + j]));
- TTAK[1] += _S_(TTAK[0] ^ Mk16(TK[5 + j], TK[4 + j]));
- TTAK[2] += _S_(TTAK[1] ^ Mk16(TK[9 + j], TK[8 + j]));
- TTAK[3] += _S_(TTAK[2] ^ Mk16(TK[13 + j], TK[12 + j]));
- TTAK[4] += _S_(TTAK[3] ^ Mk16(TK[1 + j], TK[0 + j])) + i;
- }
-}
-
-
-static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK,
- u16 IV16)
-{
- /* Make temporary area overlap WEP seed so that the final copy can be
- * avoided on little endian hosts. */
- u16 *PPK = (u16 *) &WEPSeed[4];
-
- /* Step 1 - make copy of TTAK and bring in TSC */
- PPK[0] = TTAK[0];
- PPK[1] = TTAK[1];
- PPK[2] = TTAK[2];
- PPK[3] = TTAK[3];
- PPK[4] = TTAK[4];
- PPK[5] = TTAK[4] + IV16;
-
- /* Step 2 - 96-bit bijective mixing using S-box */
- PPK[0] += _S_(PPK[5] ^ Mk16_le((u16 *) &TK[0]));
- PPK[1] += _S_(PPK[0] ^ Mk16_le((u16 *) &TK[2]));
- PPK[2] += _S_(PPK[1] ^ Mk16_le((u16 *) &TK[4]));
- PPK[3] += _S_(PPK[2] ^ Mk16_le((u16 *) &TK[6]));
- PPK[4] += _S_(PPK[3] ^ Mk16_le((u16 *) &TK[8]));
- PPK[5] += _S_(PPK[4] ^ Mk16_le((u16 *) &TK[10]));
-
- PPK[0] += RotR1(PPK[5] ^ Mk16_le((u16 *) &TK[12]));
- PPK[1] += RotR1(PPK[0] ^ Mk16_le((u16 *) &TK[14]));
- PPK[2] += RotR1(PPK[1]);
- PPK[3] += RotR1(PPK[2]);
- PPK[4] += RotR1(PPK[3]);
- PPK[5] += RotR1(PPK[4]);
-
- /* Step 3 - bring in last of TK bits, assign 24-bit WEP IV value
- * WEPSeed[0..2] is transmitted as WEP IV */
- WEPSeed[0] = Hi8(IV16);
- WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F;
- WEPSeed[2] = Lo8(IV16);
- WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((u16 *) &TK[0])) >> 1);
-
-#ifdef __BIG_ENDIAN
- {
- int i;
- for (i = 0; i < 6; i++)
- PPK[i] = (PPK[i] << 8) | (PPK[i] >> 8);
- }
-#endif
-}
-
-
-static int hostap_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
- int len;
- u8 rc4key[16], *pos, *icv;
- struct hostap_ieee80211_hdr *hdr;
- u32 crc;
- struct scatterlist sg;
-
- if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 ||
- skb->len < hdr_len)
- return -1;
-
- hdr = (struct hostap_ieee80211_hdr *) skb->data;
- if (!tkey->tx_phase1_done) {
- tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2,
- tkey->tx_iv32);
- tkey->tx_phase1_done = 1;
- }
- tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16);
-
- len = skb->len - hdr_len;
- pos = skb_push(skb, 8);
- memmove(pos, pos + 8, hdr_len);
- pos += hdr_len;
- icv = skb_put(skb, 4);
-
- *pos++ = rc4key[0];
- *pos++ = rc4key[1];
- *pos++ = rc4key[2];
- *pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */;
- *pos++ = tkey->tx_iv32 & 0xff;
- *pos++ = (tkey->tx_iv32 >> 8) & 0xff;
- *pos++ = (tkey->tx_iv32 >> 16) & 0xff;
- *pos++ = (tkey->tx_iv32 >> 24) & 0xff;
-
- crc = ~crc32_le(~0, pos, len);
- icv[0] = crc;
- icv[1] = crc >> 8;
- icv[2] = crc >> 16;
- icv[3] = crc >> 24;
-
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = len + 4;
- crypto_cipher_encrypt(tkey->tfm_arc4, &sg, &sg, len + 4);
-
- tkey->tx_iv16++;
- if (tkey->tx_iv16 == 0) {
- tkey->tx_phase1_done = 0;
- tkey->tx_iv32++;
- }
-
- return 0;
-}
-
-
-static int hostap_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
- u8 rc4key[16];
- u8 keyidx, *pos, icv[4];
- u32 iv32;
- u16 iv16;
- struct hostap_ieee80211_hdr *hdr;
- u32 crc;
- struct scatterlist sg;
- int plen;
-
- if (skb->len < hdr_len + 8 + 4)
- return -1;
-
- hdr = (struct hostap_ieee80211_hdr *) skb->data;
- pos = skb->data + hdr_len;
- keyidx = pos[3];
- if (!(keyidx & (1 << 5))) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "TKIP: received packet without ExtIV"
- " flag from " MACSTR "\n", MAC2STR(hdr->addr2));
- }
- return -2;
- }
- keyidx >>= 6;
- if (tkey->key_idx != keyidx) {
- printk(KERN_DEBUG "TKIP: RX tkey->key_idx=%d frame "
- "keyidx=%d priv=%p\n", tkey->key_idx, keyidx, priv);
- return -6;
- }
- if (!tkey->key_set) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "TKIP: received packet from " MACSTR
- " with keyid=%d that does not have a configured"
- " key\n", MAC2STR(hdr->addr2), keyidx);
- }
- return -3;
- }
- iv16 = (pos[0] << 8) | pos[2];
- iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
- pos += 8;
-
- if (iv32 < tkey->rx_iv32 ||
- (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "TKIP: replay detected: STA=" MACSTR
- " previous TSC %08x%04x received TSC "
- "%08x%04x\n", MAC2STR(hdr->addr2),
- tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
- }
- tkey->dot11RSNAStatsTKIPReplays++;
- return -4;
- }
-
- if (iv32 != tkey->rx_iv32 || !tkey->rx_phase1_done) {
- tkip_mixing_phase1(tkey->rx_ttak, tkey->key, hdr->addr2, iv32);
- tkey->rx_phase1_done = 1;
- }
- tkip_mixing_phase2(rc4key, tkey->key, tkey->rx_ttak, iv16);
-
- plen = skb->len - hdr_len - 12;
-
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = plen + 4;
- crypto_cipher_decrypt(tkey->tfm_arc4, &sg, &sg, plen + 4);
-
- crc = ~crc32_le(~0, pos, plen);
- icv[0] = crc;
- icv[1] = crc >> 8;
- icv[2] = crc >> 16;
- icv[3] = crc >> 24;
- if (memcmp(icv, pos + plen, 4) != 0) {
- if (iv32 != tkey->rx_iv32) {
- /* Previously cached Phase1 result was already lost, so
- * it needs to be recalculated for the next packet. */
- tkey->rx_phase1_done = 0;
- }
- if (net_ratelimit()) {
- printk(KERN_DEBUG "TKIP: ICV error detected: STA="
- MACSTR "\n", MAC2STR(hdr->addr2));
- }
- tkey->dot11RSNAStatsTKIPICVErrors++;
- return -5;
- }
-
- /* Update real counters only after Michael MIC verification has
- * completed */
- tkey->rx_iv32_new = iv32;
- tkey->rx_iv16_new = iv16;
-
- /* Remove IV and ICV */
- memmove(skb->data + 8, skb->data, hdr_len);
- skb_pull(skb, 8);
- skb_trim(skb, skb->len - 4);
-
- return keyidx;
-}
-
-
-static int michael_mic(struct hostap_tkip_data *tkey, u8 *key, u8 *hdr,
- u8 *data, size_t data_len, u8 *mic)
-{
- struct scatterlist sg[2];
-
- if (tkey->tfm_michael == NULL) {
- printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
- return -1;
- }
- sg[0].page = virt_to_page(hdr);
- sg[0].offset = offset_in_page(hdr);
- sg[0].length = 16;
-
- sg[1].page = virt_to_page(data);
- sg[1].offset = offset_in_page(data);
- sg[1].length = data_len;
-
- crypto_digest_init(tkey->tfm_michael);
- crypto_digest_setkey(tkey->tfm_michael, key, 8);
- crypto_digest_update(tkey->tfm_michael, sg, 2);
- crypto_digest_final(tkey->tfm_michael, mic);
-
- return 0;
-}
-
-
-static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr)
-{
- struct hostap_ieee80211_hdr *hdr11;
-
- hdr11 = (struct hostap_ieee80211_hdr *) skb->data;
- switch (le16_to_cpu(hdr11->frame_control) &
- (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
- case WLAN_FC_TODS:
- memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */
- memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */
- break;
- case WLAN_FC_FROMDS:
- memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */
- memcpy(hdr + ETH_ALEN, hdr11->addr3, ETH_ALEN); /* SA */
- break;
- case WLAN_FC_FROMDS | WLAN_FC_TODS:
- memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */
- memcpy(hdr + ETH_ALEN, hdr11->addr4, ETH_ALEN); /* SA */
- break;
- case 0:
- memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */
- memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */
- break;
- }
-
- hdr[12] = 0; /* priority */
- hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */
-}
-
-
-static int hostap_michael_mic_add(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
- u8 *pos;
-
- if (skb_tailroom(skb) < 8 || skb->len < hdr_len) {
- printk(KERN_DEBUG "Invalid packet for Michael MIC add "
- "(tailroom=%d hdr_len=%d skb->len=%d)\n",
- skb_tailroom(skb), hdr_len, skb->len);
- return -1;
- }
-
- michael_mic_hdr(skb, tkey->tx_hdr);
- pos = skb_put(skb, 8);
- if (michael_mic(tkey, &tkey->key[16], tkey->tx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
- return -1;
-
- return 0;
-}
-
-
-static void hostap_michael_mic_failure(struct net_device *dev,
- struct hostap_ieee80211_hdr *hdr,
- int keyidx)
-{
- union iwreq_data wrqu;
- char buf[128];
-
- /* TODO: needed parameters: count, keyid, key type, src address, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
- MACSTR ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC2STR(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-}
-
-
-static int hostap_michael_mic_verify(struct sk_buff *skb, int keyidx,
- int hdr_len, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
- u8 mic[8];
-
- if (!tkey->key_set)
- return -1;
-
- michael_mic_hdr(skb, tkey->rx_hdr);
- if (michael_mic(tkey, &tkey->key[24], tkey->rx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
- return -1;
- if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
- struct hostap_ieee80211_hdr *hdr;
- hdr = (struct hostap_ieee80211_hdr *) skb->data;
- printk(KERN_DEBUG "%s: Michael MIC verification failed for "
- "MSDU from " MACSTR " keyidx=%d\n",
- skb->dev ? skb->dev->name : "N/A", MAC2STR(hdr->addr2),
- keyidx);
- if (skb->dev)
- hostap_michael_mic_failure(skb->dev, hdr, keyidx);
- tkey->dot11RSNAStatsTKIPLocalMICFailures++;
- return -1;
- }
-
- /* Update TSC counters for RX now that the packet verification has
- * completed. */
- tkey->rx_iv32 = tkey->rx_iv32_new;
- tkey->rx_iv16 = tkey->rx_iv16_new;
-
- skb_trim(skb, skb->len - 8);
-
- return 0;
-}
-
-
-static int hostap_tkip_set_key(void *key, int len, u8 *seq, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
- int keyidx;
- struct crypto_tfm *tfm = tkey->tfm_michael;
- struct crypto_tfm *tfm2 = tkey->tfm_arc4;
-
- keyidx = tkey->key_idx;
- memset(tkey, 0, sizeof(*tkey));
- tkey->key_idx = keyidx;
- tkey->tfm_michael = tfm;
- tkey->tfm_arc4 = tfm2;
- if (len == TKIP_KEY_LEN) {
- memcpy(tkey->key, key, TKIP_KEY_LEN);
- tkey->key_set = 1;
- tkey->tx_iv16 = 1; /* TSC is initialized to 1 */
- if (seq) {
- tkey->rx_iv32 = (seq[5] << 24) | (seq[4] << 16) |
- (seq[3] << 8) | seq[2];
- tkey->rx_iv16 = (seq[1] << 8) | seq[0];
- }
- } else if (len == 0) {
- tkey->key_set = 0;
- } else
- return -1;
-
- return 0;
-}
-
-
-static int hostap_tkip_get_key(void *key, int len, u8 *seq, void *priv)
-{
- struct hostap_tkip_data *tkey = priv;
-
- if (len < TKIP_KEY_LEN)
- return -1;
-
- if (!tkey->key_set)
- return 0;
- memcpy(key, tkey->key, TKIP_KEY_LEN);
-
- if (seq) {
- /* Return the sequence number of the last transmitted frame. */
- u16 iv16 = tkey->tx_iv16;
- u32 iv32 = tkey->tx_iv32;
- if (iv16 == 0)
- iv32--;
- iv16--;
- seq[0] = tkey->tx_iv16;
- seq[1] = tkey->tx_iv16 >> 8;
- seq[2] = tkey->tx_iv32;
- seq[3] = tkey->tx_iv32 >> 8;
- seq[4] = tkey->tx_iv32 >> 16;
- seq[5] = tkey->tx_iv32 >> 24;
- }
-
- return TKIP_KEY_LEN;
-}
-
-
-static char * hostap_tkip_print_stats(char *p, void *priv)
-{
- struct hostap_tkip_data *tkip = priv;
- p += sprintf(p, "key[%d] alg=TKIP key_set=%d "
- "tx_pn=%02x%02x%02x%02x%02x%02x "
- "rx_pn=%02x%02x%02x%02x%02x%02x "
- "replays=%d icv_errors=%d local_mic_failures=%d\n",
- tkip->key_idx, tkip->key_set,
- (tkip->tx_iv32 >> 24) & 0xff,
- (tkip->tx_iv32 >> 16) & 0xff,
- (tkip->tx_iv32 >> 8) & 0xff,
- tkip->tx_iv32 & 0xff,
- (tkip->tx_iv16 >> 8) & 0xff,
- tkip->tx_iv16 & 0xff,
- (tkip->rx_iv32 >> 24) & 0xff,
- (tkip->rx_iv32 >> 16) & 0xff,
- (tkip->rx_iv32 >> 8) & 0xff,
- tkip->rx_iv32 & 0xff,
- (tkip->rx_iv16 >> 8) & 0xff,
- tkip->rx_iv16 & 0xff,
- tkip->dot11RSNAStatsTKIPReplays,
- tkip->dot11RSNAStatsTKIPICVErrors,
- tkip->dot11RSNAStatsTKIPLocalMICFailures);
- return p;
-}
-
-
-static struct hostap_crypto_ops hostap_crypt_tkip = {
- .name = "TKIP",
- .init = hostap_tkip_init,
- .deinit = hostap_tkip_deinit,
- .encrypt_mpdu = hostap_tkip_encrypt,
- .decrypt_mpdu = hostap_tkip_decrypt,
- .encrypt_msdu = hostap_michael_mic_add,
- .decrypt_msdu = hostap_michael_mic_verify,
- .set_key = hostap_tkip_set_key,
- .get_key = hostap_tkip_get_key,
- .print_stats = hostap_tkip_print_stats,
- .extra_prefix_len = 4 + 4 /* IV + ExtIV */,
- .extra_postfix_len = 8 + 4 /* MIC + ICV */
-};
-
-
-static int __init hostap_crypto_tkip_init(void)
-{
- if (hostap_register_crypto_ops(&hostap_crypt_tkip) < 0)
- return -1;
-
- return 0;
-}
-
-
-static void __exit hostap_crypto_tkip_exit(void)
-{
- hostap_unregister_crypto_ops(&hostap_crypt_tkip);
-}
-
-
-module_init(hostap_crypto_tkip_init);
-module_exit(hostap_crypto_tkip_exit);
+++ /dev/null
-/*
- * Host AP crypt: host-based WEP encryption implementation for Host AP driver
- *
- * Copyright (c) 2002-2004, Jouni Malinen <jkmaline@cc.hut.fi>
- *
- * 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/config.h>
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/skbuff.h>
-#include <asm/string.h>
-
-#include "hostap_crypt.h"
-#include "hostap_config.h"
-
-#ifndef CONFIG_CRYPTO
-#error CONFIG_CRYPTO is required to build this module.
-#endif
-#include <linux/crypto.h>
-#include <asm/scatterlist.h>
-#include <linux/crc32.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: WEP");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(PRISM2_VERSION);
-
-
-struct prism2_wep_data {
- u32 iv;
-#define WEP_KEY_LEN 13
- u8 key[WEP_KEY_LEN + 1];
- u8 key_len;
- u8 key_idx;
- struct crypto_tfm *tfm;
-};
-
-
-static void * prism2_wep_init(int keyidx)
-{
- struct prism2_wep_data *priv;
-
- if (!try_module_get(THIS_MODULE))
- return NULL;
-
- priv = (struct prism2_wep_data *) kmalloc(sizeof(*priv), GFP_ATOMIC);
- if (priv == NULL)
- goto fail;
- memset(priv, 0, sizeof(*priv));
- priv->key_idx = keyidx;
-
- priv->tfm = crypto_alloc_tfm("arc4", 0);
- if (priv->tfm == NULL) {
- printk(KERN_DEBUG "hostap_crypt_wep: could not allocate "
- "crypto API arc4\n");
- goto fail;
- }
-
- /* start WEP IV from a random value */
- get_random_bytes(&priv->iv, 4);
-
- return priv;
-
-fail:
- if (priv) {
- if (priv->tfm)
- crypto_free_tfm(priv->tfm);
- kfree(priv);
- }
- module_put(THIS_MODULE);
- return NULL;
-}
-
-
-static void prism2_wep_deinit(void *priv)
-{
- struct prism2_wep_data *_priv = priv;
- if (_priv && _priv->tfm)
- crypto_free_tfm(_priv->tfm);
- kfree(priv);
- module_put(THIS_MODULE);
-}
-
-
-/* Perform WEP encryption on given skb that has at least 4 bytes of headroom
- * for IV and 4 bytes of tailroom for ICV. Both IV and ICV will be transmitted,
- * so the payload length increases with 8 bytes.
- *
- * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
- */
-static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct prism2_wep_data *wep = priv;
- u32 crc, klen, len;
- u8 key[WEP_KEY_LEN + 3];
- u8 *pos, *icv;
- struct scatterlist sg;
-
- if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 ||
- skb->len < hdr_len)
- return -1;
-
- len = skb->len - hdr_len;
- pos = skb_push(skb, 4);
- memmove(pos, pos + 4, hdr_len);
- pos += hdr_len;
-
- klen = 3 + wep->key_len;
-
- wep->iv++;
-
- /* Fluhrer, Mantin, and Shamir have reported weaknesses in the key
- * scheduling algorithm of RC4. At least IVs (KeyByte + 3, 0xff, N)
- * can be used to speedup attacks, so avoid using them. */
- if ((wep->iv & 0xff00) == 0xff00) {
- u8 B = (wep->iv >> 16) & 0xff;
- if (B >= 3 && B < klen)
- wep->iv += 0x0100;
- }
-
- /* Prepend 24-bit IV to RC4 key and TX frame */
- *pos++ = key[0] = (wep->iv >> 16) & 0xff;
- *pos++ = key[1] = (wep->iv >> 8) & 0xff;
- *pos++ = key[2] = wep->iv & 0xff;
- *pos++ = wep->key_idx << 6;
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(key + 3, wep->key, wep->key_len);
-
- /* Append little-endian CRC32 and encrypt it to produce ICV */
- crc = ~crc32_le(~0, pos, len);
- icv = skb_put(skb, 4);
- icv[0] = crc;
- icv[1] = crc >> 8;
- icv[2] = crc >> 16;
- icv[3] = crc >> 24;
-
- crypto_cipher_setkey(wep->tfm, key, klen);
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = len + 4;
- crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4);
-
- return 0;
-}
-
-
-/* Perform WEP decryption on given buffer. Buffer includes whole WEP part of
- * the frame: IV (4 bytes), encrypted payload (including SNAP header),
- * ICV (4 bytes). len includes both IV and ICV.
- *
- * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
- * failure. If frame is OK, IV and ICV will be removed.
- */
-static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
-{
- struct prism2_wep_data *wep = priv;
- u32 crc, klen, plen;
- u8 key[WEP_KEY_LEN + 3];
- u8 keyidx, *pos, icv[4];
- struct scatterlist sg;
-
- if (skb->len < hdr_len + 8)
- return -1;
-
- pos = skb->data + hdr_len;
- key[0] = *pos++;
- key[1] = *pos++;
- key[2] = *pos++;
- keyidx = *pos++ >> 6;
- if (keyidx != wep->key_idx)
- return -1;
-
- klen = 3 + wep->key_len;
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(key + 3, wep->key, wep->key_len);
-
- /* Apply RC4 to data and compute CRC32 over decrypted data */
- plen = skb->len - hdr_len - 8;
-
- crypto_cipher_setkey(wep->tfm, key, klen);
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = plen + 4;
- crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4);
-
- crc = ~crc32_le(~0, pos, plen);
- icv[0] = crc;
- icv[1] = crc >> 8;
- icv[2] = crc >> 16;
- icv[3] = crc >> 24;
- if (memcmp(icv, pos + plen, 4) != 0) {
- /* ICV mismatch - drop frame */
- return -2;
- }
-
- /* Remove IV and ICV */
- memmove(skb->data + 4, skb->data, hdr_len);
- skb_pull(skb, 4);
- skb_trim(skb, skb->len - 4);
-
- return 0;
-}
-
-
-static int prism2_wep_set_key(void *key, int len, u8 *seq, void *priv)
-{
- struct prism2_wep_data *wep = priv;
-
- if (len < 0 || len > WEP_KEY_LEN)
- return -1;
-
- memcpy(wep->key, key, len);
- wep->key_len = len;
-
- return 0;
-}
-
-
-static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv)
-{
- struct prism2_wep_data *wep = priv;
-
- if (len < wep->key_len)
- return -1;
-
- memcpy(key, wep->key, wep->key_len);
-
- return wep->key_len;
-}
-
-
-static char * prism2_wep_print_stats(char *p, void *priv)
-{
- struct prism2_wep_data *wep = priv;
- p += sprintf(p, "key[%d] alg=WEP len=%d\n",
- wep->key_idx, wep->key_len);
- return p;
-}
-
-
-static struct hostap_crypto_ops hostap_crypt_wep = {
- .name = "WEP",
- .init = prism2_wep_init,
- .deinit = prism2_wep_deinit,
- .encrypt_mpdu = prism2_wep_encrypt,
- .decrypt_mpdu = prism2_wep_decrypt,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = prism2_wep_set_key,
- .get_key = prism2_wep_get_key,
- .print_stats = prism2_wep_print_stats,
- .extra_prefix_len = 4 /* IV */,
- .extra_postfix_len = 4 /* ICV */
-};
-
-
-static int __init hostap_crypto_wep_init(void)
-{
- if (hostap_register_crypto_ops(&hostap_crypt_wep) < 0)
- return -1;
-
- return 0;
-}
-
-
-static void __exit hostap_crypto_wep_exit(void)
-{
- hostap_unregister_crypto_ops(&hostap_crypt_wep);
-}
-
-
-module_init(hostap_crypto_wep_init);
-module_exit(hostap_crypto_wep_exit);
*
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* <jkmaline@cc.hut.fi>
- * Copyright (c) 2002-2004, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi>
*
* 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
static void prism2_crypt_deinit_entries(local_info_t *local, int force)
{
struct list_head *ptr, *n;
- struct prism2_crypt_data *entry;
+ struct ieee80211_crypt_data *entry;
for (ptr = local->crypt_deinit_list.next, n = ptr->next;
ptr != &local->crypt_deinit_list; ptr = n, n = ptr->next) {
- entry = list_entry(ptr, struct prism2_crypt_data, list);
+ entry = list_entry(ptr, struct ieee80211_crypt_data, list);
if (atomic_read(&entry->refcnt) != 0 && !force)
continue;
prism2_callback(local, PRISM2_CALLBACK_DISABLE);
for (i = 0; i < WEP_KEYS; i++) {
- struct prism2_crypt_data *crypt = local->crypt[i];
+ struct ieee80211_crypt_data *crypt = local->crypt[i];
if (crypt) {
if (crypt->ops)
crypt->ops->deinit(crypt->priv);
static void prism2_crypt_delayed_deinit(local_info_t *local,
- struct prism2_crypt_data **crypt)
+ struct ieee80211_crypt_data **crypt)
{
- struct prism2_crypt_data *tmp;
+ struct ieee80211_crypt_data *tmp;
unsigned long flags;
tmp = *crypt;
struct hostap_interface *iface;
local_info_t *local;
int i;
- struct prism2_crypt_data **crypt;
+ struct ieee80211_crypt_data **crypt;
iface = netdev_priv(dev);
local = iface->local;
}
if (*crypt == NULL) {
- struct prism2_crypt_data *new_crypt;
+ struct ieee80211_crypt_data *new_crypt;
/* take WEP into use */
- new_crypt = (struct prism2_crypt_data *)
- kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL);
+ new_crypt = (struct ieee80211_crypt_data *)
+ kmalloc(sizeof(struct ieee80211_crypt_data),
+ GFP_KERNEL);
if (new_crypt == NULL)
return -ENOMEM;
- memset(new_crypt, 0, sizeof(struct prism2_crypt_data));
- new_crypt->ops = hostap_get_crypto_ops("WEP");
+ memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
+ new_crypt->ops = ieee80211_get_crypto_ops("WEP");
if (!new_crypt->ops) {
- request_module("hostap_crypt_wep");
- new_crypt->ops = hostap_get_crypto_ops("WEP");
+ request_module("ieee80211_crypt_wep");
+ new_crypt->ops = ieee80211_get_crypto_ops("WEP");
}
if (new_crypt->ops)
new_crypt->priv = new_crypt->ops->init(i);
local_info_t *local;
int i, len;
u16 val;
- struct prism2_crypt_data *crypt;
+ struct ieee80211_crypt_data *crypt;
iface = netdev_priv(dev);
local = iface->local;
local_info_t *local = iface->local;
struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
int i, ret = 0;
- struct hostap_crypto_ops *ops;
- struct prism2_crypt_data **crypt;
+ struct ieee80211_crypto_ops *ops;
+ struct ieee80211_crypt_data **crypt;
void *sta_ptr;
u8 *addr;
const char *alg, *module;
switch (ext->alg) {
case IW_ENCODE_ALG_WEP:
alg = "WEP";
- module = "hostap_crypt_wep";
+ module = "ieee80211_crypt_wep";
break;
case IW_ENCODE_ALG_TKIP:
alg = "TKIP";
- module = "hostap_crypt_tkip";
+ module = "ieee80211_crypt_tkip";
break;
case IW_ENCODE_ALG_CCMP:
alg = "CCMP";
- module = "hostap_crypt_ccmp";
+ module = "ieee80211_crypt_ccmp";
break;
default:
printk(KERN_DEBUG "%s: unsupported algorithm %d\n",
goto done;
}
- ops = hostap_get_crypto_ops(alg);
+ ops = ieee80211_get_crypto_ops(alg);
if (ops == NULL) {
request_module(module);
- ops = hostap_get_crypto_ops(alg);
+ ops = ieee80211_get_crypto_ops(alg);
}
if (ops == NULL) {
printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
}
if (*crypt == NULL || (*crypt)->ops != ops) {
- struct prism2_crypt_data *new_crypt;
+ struct ieee80211_crypt_data *new_crypt;
prism2_crypt_delayed_deinit(local, crypt);
- new_crypt = (struct prism2_crypt_data *)
- kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL);
+ new_crypt = (struct ieee80211_crypt_data *)
+ kmalloc(sizeof(struct ieee80211_crypt_data),
+ GFP_KERNEL);
if (new_crypt == NULL) {
ret = -ENOMEM;
goto done;
}
- memset(new_crypt, 0, sizeof(struct prism2_crypt_data));
+ memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
new_crypt->ops = ops;
new_crypt->priv = new_crypt->ops->init(i);
if (new_crypt->priv == NULL) {
{
struct hostap_interface *iface = dev->priv;
local_info_t *local = iface->local;
- struct prism2_crypt_data **crypt;
+ struct ieee80211_crypt_data **crypt;
void *sta_ptr;
int max_key_len, i;
struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
int param_len)
{
int ret = 0;
- struct hostap_crypto_ops *ops;
- struct prism2_crypt_data **crypt;
+ struct ieee80211_crypto_ops *ops;
+ struct ieee80211_crypt_data **crypt;
void *sta_ptr;
param->u.crypt.err = 0;
goto done;
}
- ops = hostap_get_crypto_ops(param->u.crypt.alg);
+ ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
- request_module("hostap_crypt_wep");
- ops = hostap_get_crypto_ops(param->u.crypt.alg);
+ request_module("ieee80211_crypt_wep");
+ ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
} else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
- request_module("hostap_crypt_tkip");
- ops = hostap_get_crypto_ops(param->u.crypt.alg);
+ request_module("ieee80211_crypt_tkip");
+ ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
} else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
- request_module("hostap_crypt_ccmp");
- ops = hostap_get_crypto_ops(param->u.crypt.alg);
+ request_module("ieee80211_crypt_ccmp");
+ ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
}
if (ops == NULL) {
printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
local->host_decrypt = local->host_encrypt = 1;
if (*crypt == NULL || (*crypt)->ops != ops) {
- struct prism2_crypt_data *new_crypt;
+ struct ieee80211_crypt_data *new_crypt;
prism2_crypt_delayed_deinit(local, crypt);
- new_crypt = (struct prism2_crypt_data *)
- kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL);
+ new_crypt = (struct ieee80211_crypt_data *)
+ kmalloc(sizeof(struct ieee80211_crypt_data),
+ GFP_KERNEL);
if (new_crypt == NULL) {
ret = -ENOMEM;
goto done;
}
- memset(new_crypt, 0, sizeof(struct prism2_crypt_data));
+ memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
new_crypt->ops = ops;
new_crypt->priv = new_crypt->ops->init(param->u.crypt.idx);
if (new_crypt->priv == NULL) {
struct prism2_hostapd_param *param,
int param_len)
{
- struct prism2_crypt_data **crypt;
+ struct ieee80211_crypt_data **crypt;
void *sta_ptr;
int max_key_len;
#define HOSTAP_WLAN_H
#include "hostap_config.h"
-#include "hostap_crypt.h"
#include "hostap_common.h"
#define MAX_PARM_DEVICES 8
};
-struct prism2_crypt_data {
- struct list_head list; /* delayed deletion list */
- struct hostap_crypto_ops *ops;
- void *priv;
- atomic_t refcnt;
-};
-
struct hostap_cmd_queue {
struct list_head list;
wait_queue_head_t compl;
#define WEP_KEYS 4
#define WEP_KEY_LEN 13
- struct prism2_crypt_data *crypt[WEP_KEYS];
+ struct ieee80211_crypt_data *crypt[WEP_KEYS];
int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
struct timer_list crypt_deinit_timer;
struct list_head crypt_deinit_list;
projects / linux-2.6 / commitdiff