nuke the old d80211 backport - will be replaced soon

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7340 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 846 deletions

diff --git a/package/d80211/src/wpa.c b/package/d80211/src/wpa.c
deleted file mode 100644
index 7b64abf86..000000000
--- a/package/d80211/src/wpa.c
+++ /dev/null
@@ -1,846 +0,0 @@
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * 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.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-#include <net/iw_handler.h>
-
-#include <net/d80211.h>
-#include "ieee80211_common.h"
-#include "ieee80211_i.h"
-#include "michael.h"
-#include "tkip.h"
-#include "aes_ccm.h"
-#include "wpa.h"
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-#include "hostapd_ioctl.h"
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-
-int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
-			   u8 *qos_tid, u8 **data, size_t *data_len)
-{
-	struct ieee80211_hdr *hdr;
-	size_t hdrlen;
-	u16 fc;
-	int a4_included;
-	u8 *pos;
-
-	hdr = (struct ieee80211_hdr *) skb->data;
-	fc = le16_to_cpu(hdr->frame_control);
-
-	hdrlen = 24;
-	if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
-	    (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
-		hdrlen += ETH_ALEN;
-		*sa = hdr->addr4;
-		*da = hdr->addr3;
-	} else if (fc & IEEE80211_FCTL_FROMDS) {
-		*sa = hdr->addr3;
-		*da = hdr->addr1;
-	} else if (fc & IEEE80211_FCTL_TODS) {
-		*sa = hdr->addr2;
-		*da = hdr->addr3;
-	} else {
-		*sa = hdr->addr2;
-		*da = hdr->addr1;
-	}
-
-	if (fc & 0x80)
-		hdrlen += 2;
-
-	*data = skb->data + hdrlen;
-	*data_len = skb->len - hdrlen;
-
-	a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
-		(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-	if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
-	    fc & IEEE80211_STYPE_QOS_DATA) {
-		pos = (u8 *) &hdr->addr4;
-		if (a4_included)
-			pos += 6;
-		*qos_tid = pos[0] & 0x0f;
-		*qos_tid |= 0x80; /* qos_included flag */
-	} else
-		*qos_tid = 0;
-
-	return skb->len < hdrlen ? -1 : 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
-{
-	u8 *data, *sa, *da, *key, *mic, qos_tid;
-	size_t data_len;
-	u16 fc;
-	struct sk_buff *skb = tx->skb;
-	int authenticator;
-	int wpa_test = 0;
-
-	fc = tx->fc;
-
-	if (!tx->key || tx->key->alg != ALG_TKIP || skb->len < 24 ||
-	    !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
-
-	if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
-		return TXRX_DROP;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) ||
-	    (!tx->u.tx.unicast &&
-	     tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC)) {
-		wpa_test = 1;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	if (!tx->key->force_sw_encrypt &&
-	    !tx->fragmented &&
-	    !(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
-	    !wpa_test) {
-		/* hwaccel - with no need for preallocated room for Michael MIC
-		 */
-		return TXRX_CONTINUE;
-	}
-
-	if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
-		I802_DEBUG_INC(tx->local->tx_expand_skb_head);
-		if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
-					      MICHAEL_MIC_LEN + TKIP_ICV_LEN,
-					      GFP_ATOMIC))) {
-			printk(KERN_DEBUG "%s: failed to allocate more memory "
-			       "for Michael MIC\n", tx->dev->name);
-			return TXRX_DROP;
-		}
-	}
-
-#if 0
-	authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
-#else
-	authenticator = 1;
-#endif
-	key = &tx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
-			    ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
-	mic = skb_put(skb, MICHAEL_MIC_LEN);
-	michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
-		printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
-		       "for STA " MAC_FMT "\n",
-		       tx->dev->name, MAC_ARG(tx->sta->addr));
-		tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-		tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
-		tx->wpa_test = 1;
-		mic[0]++;
-	} else if (!tx->u.tx.unicast &&
-		   tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
-		printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
-		       "for Group Key\n", tx->dev->name);
-		tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-		tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
-		tx->wpa_test = 1;
-		mic[0]++;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
-{
-	u8 *data, *sa, *da, *key = NULL, qos_tid;
-	size_t data_len;
-	u16 fc;
-	u8 mic[MICHAEL_MIC_LEN];
-	struct sk_buff *skb = rx->skb;
-	int authenticator = 1, wpa_test = 0;
-
-	fc = rx->fc;
-
-	/* If device handles decryption totally, skip this check */
-	if ((rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) ||
-	    (rx->local->hw.flags & IEEE80211_HW_DEVICE_STRIPS_MIC))
-		return TXRX_CONTINUE;
-
-	if (!rx->key || rx->key->alg != ALG_TKIP ||
-	    !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
-		wpa_test = 1;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-	    !rx->key->force_sw_encrypt) {
-		if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
-			if (skb->len < MICHAEL_MIC_LEN)
-				return TXRX_DROP;
-		}
-		/* Need to verify Michael MIC sometimes in software even when
-		 * hwaccel is used. Atheros ar5212: fragmented frames and QoS
-		 * frames. */
-		if (!rx->fragmented && !wpa_test)
-			goto remove_mic;
-	}
-
-	if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
-	    || data_len < MICHAEL_MIC_LEN)
-		return TXRX_DROP;
-
-	data_len -= MICHAEL_MIC_LEN;
-
-#if 0
-	authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
-#else
-	authenticator = 1;
-#endif
-	key = &rx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
-			    ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
-	michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
-		printk(KERN_INFO "%s: WPA testing - corrupting RX Michael MIC "
-		       "for STA " MAC_FMT "\n",
-		       rx->dev->name, MAC_ARG(rx->sta->addr));
-		rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_MIC;
-		mic[0]++;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-	if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-		int i;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-		if (!rx->u.rx.ra_match)
-			return TXRX_DROP;
-
-		printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
-		       MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-		printk(KERN_DEBUG "   received");
-		for (i = 0; i < MICHAEL_MIC_LEN; i++)
-			printk(" %02x", data[data_len + i]);
-		printk(" expected");
-		for (i = 0; i < MICHAEL_MIC_LEN; i++)
-			printk(" %02x", mic[i]);
-		printk("\n");
-		printk(KERN_DEBUG "   SA=" MAC_FMT " DA=" MAC_FMT " key",
-		       MAC_ARG(sa), MAC_ARG(da));
-		for (i = 0; i < 8; i++)
-			printk(" %02x", key[i]);
-		printk(" (%d)\n", authenticator);
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-		do {
-			struct ieee80211_hdr *hdr;
-			union iwreq_data wrqu;
-			char *buf = kmalloc(128, GFP_ATOMIC);
-			if (!buf)
-				break;
-
-			/* TODO: needed parameters: count, key type, TSC */
-			hdr = (struct ieee80211_hdr *) skb->data;
-			sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
-				"keyid=%d %scast addr=" MAC_FMT ")",
-				rx->key->keyidx,
-				hdr->addr1[0] & 0x01 ? "broad" : "uni",
-				MAC_ARG(hdr->addr2));
-			memset(&wrqu, 0, sizeof(wrqu));
-			wrqu.data.length = strlen(buf);
-			wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
-			kfree(buf);
-		} while (0);
-
-		if (!rx->local->apdev)
-			return TXRX_DROP;
-
-		ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
-				  ieee80211_msg_michael_mic_failure);
-
-		return TXRX_QUEUED;
-	}
-
- remove_mic:
-	/* remove Michael MIC from payload */
-	skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
-
-	return TXRX_CONTINUE;
-}
-
-
-static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
-			    struct sk_buff *skb, int test)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_key *key = tx->key;
-	int hdrlen, len, tailneed;
-	u16 fc;
-	u8 *pos;
-
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
-	len = skb->len - hdrlen;
-
-	tailneed = !tx->key->force_sw_encrypt ? 0 : TKIP_ICV_LEN;
-	if ((skb_headroom(skb) < TKIP_IV_LEN ||
-	     skb_tailroom(skb) < tailneed)) {
-		I802_DEBUG_INC(tx->local->tx_expand_skb_head);
-		if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
-					      GFP_ATOMIC)))
-			return -1;
-	}
-
-	pos = skb_push(skb, TKIP_IV_LEN);
-	memmove(pos, pos + TKIP_IV_LEN, hdrlen);
-	pos += hdrlen;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (test & WPA_TRIGGER_TX_REPLAY)
-		goto skip_iv_inc;
-iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	/* Increase IV for the frame */
-	key->u.tkip.iv16++;
-	if (key->u.tkip.iv16 == 0)
-		key->u.tkip.iv32++;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
-		test = 0;
-		goto iv_inc;
-	}
-skip_iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	if (!tx->key->force_sw_encrypt
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	    && !tx->wpa_test
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-		) {
-		u32 flags = tx->local->hw.flags;
-		hdr = (struct ieee80211_hdr *)skb->data;
-
-		/* hwaccel - with preallocated room for IV */
-		ieee80211_tkip_add_iv(pos, key,
-				      (u8) (key->u.tkip.iv16 >> 8),
-				      (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
-					    0x7f),
-				      (u8) key->u.tkip.iv16);
-
-		if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
-			ieee80211_tkip_gen_rc4key(key, hdr->addr2,
-						  tx->u.tx.control->tkip_key);
-		else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
-			if (key->u.tkip.iv16 == 0 ||
-			    !key->u.tkip.tx_initialized) {
-				ieee80211_tkip_gen_phase1key(key, hdr->addr2,
-					    (u16 *)tx->u.tx.control->tkip_key);
-				key->u.tkip.tx_initialized = 1;
-				tx->u.tx.control->flags |=
-					    IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
-			} else
-				tx->u.tx.control->flags &=
-					    ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
-		}
-
-		tx->u.tx.control->key_idx = tx->key->hw_key_idx;
-		return 0;
-	}
-
-	/* Add room for ICV */
-	skb_put(skb, TKIP_ICV_LEN);
-
-	hdr = (struct ieee80211_hdr *) skb->data;
-	ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
-				    key, pos, len, hdr->addr2);
-	return 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-	u16 fc;
-	struct ieee80211_key *key = tx->key;
-	struct sk_buff *skb = tx->skb;
-	int wpa_test = 0, test = 0;
-
-	fc = le16_to_cpu(hdr->frame_control);
-
-	if (!key || key->alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
-
-	tx->u.tx.control->icv_len = TKIP_ICV_LEN;
-	tx->u.tx.control->iv_len = TKIP_IV_LEN;
-	ieee80211_tx_set_iswep(tx);
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) ||
-	    (!tx->u.tx.unicast &&
-	     tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV)) {
-		wpa_test = 1;
-	}
-
-	if (tx->sta) {
-		test = tx->sta->wpa_trigger;
-		tx->sta->wpa_trigger &=
-			~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
-			  WPA_TRIGGER_TX_SKIP_SEQ);
-	} else {
-		test = tx->local->wpa_trigger;
-		tx->local->wpa_trigger &=
-			~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
-			  WPA_TRIGGER_TX_SKIP_SEQ);
-	}
-	if (test &
-	    (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
-	     WPA_TRIGGER_TX_SKIP_SEQ)) {
-		printk(KERN_INFO "%s: WPA testing - TKIP TX packet number "
-		       "%s%s%s%s\n", tx->dev->name,
-		       tx->sta ? "[UNICAST]" : "[MULTICAST]",
-		       test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
-		       test & WPA_TRIGGER_TX_REPLAY_FRAG ?
-		       "[REPLAY FRAG]" : "",
-		       test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	if (!tx->key->force_sw_encrypt &&
-	    !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
-	    !wpa_test) {
-		/* hwaccel - with no need for preallocated room for IV/ICV */
-		tx->u.tx.control->key_idx = tx->key->hw_key_idx;
-		return TXRX_CONTINUE;
-	}
-
-	if (tkip_encrypt_skb(tx, skb, test) < 0)
-		return TXRX_DROP;
-
-	if (tx->u.tx.extra_frag) {
-		int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-		if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
-			test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
-			    < 0)
-				return TXRX_DROP;
-		}
-	}
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
-		printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
-		       "for STA " MAC_FMT "\n",
-		       tx->dev->name, MAC_ARG(tx->sta->addr));
-		tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-		tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
-		skb->data[skb->len - 1]++;
-	} else if (!tx->u.tx.unicast &&
-		   tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
-		printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
-		       "for Group Key\n",
-		       tx->dev->name);
-		tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-		tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
-		skb->data[skb->len - 1]++;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-	u16 fc;
-	int hdrlen, res, hwaccel = 0, wpa_test = 0;
-	struct ieee80211_key *key = rx->key;
-	struct sk_buff *skb = rx->skb;
-
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
-
-	if (!rx->key || rx->key->alg != ALG_TKIP ||
-	    !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
-	    (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
-		return TXRX_CONTINUE;
-
-	if (!rx->sta || skb->len - hdrlen < 12)
-		return TXRX_DROP;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_ICV) {
-		printk(KERN_INFO "%s: WPA testing - corrupting RX TKIP ICV "
-		       "for STA " MAC_FMT "\n",
-		       rx->dev->name, MAC_ARG(rx->sta->addr));
-		rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_ICV;
-		skb->data[skb->len - 1]++;
-		wpa_test = 1;
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-	    !rx->key->force_sw_encrypt) {
-		if (!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
-			/* Hardware takes care of all processing, including
-			 * replay protection, so no need to continue here. */
-			return TXRX_CONTINUE;
-		}
-
-		/* let TKIP code verify IV, but skip decryption */
-		hwaccel = 1;
-	}
-
-	res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
-					  key, skb->data + hdrlen,
-					  skb->len - hdrlen, rx->sta->addr,
-					  hwaccel, rx->u.rx.queue);
-	if (res != TKIP_DECRYPT_OK || wpa_test) {
-		printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
-		       MAC_FMT " (res=%d)\n",
-		       rx->dev->name, MAC_ARG(rx->sta->addr), res);
-		return TXRX_DROP;
-	}
-
-	/* Trim ICV */
-	skb_trim(skb, skb->len - TKIP_ICV_LEN);
-
-	/* Remove IV */
-	memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, TKIP_IV_LEN);
-
-	return TXRX_CONTINUE;
-}
-
-
-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
-				int encrypted)
-{
-	u16 fc;
-	int a4_included, qos_included;
-	u8 qos_tid, *fc_pos, *data, *sa, *da;
-	int len_a;
-	size_t data_len;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
-	fc_pos = (u8 *) &hdr->frame_control;
-	fc = fc_pos[0] ^ (fc_pos[1] << 8);
-	a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
-		(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-
-	ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
-	data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
-	if (qos_tid & 0x80) {
-		qos_included = 1;
-		qos_tid &= 0x0f;
-	} else
-		qos_included = 0;
-	/* First block, b_0 */
-
-	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
-	/* Nonce: QoS Priority | A2 | PN */
-	b_0[1] = qos_tid;
-	memcpy(&b_0[2], hdr->addr2, 6);
-	memcpy(&b_0[8], pn, CCMP_PN_LEN);
-	/* l(m) */
-	b_0[14] = (data_len >> 8) & 0xff;
-	b_0[15] = data_len & 0xff;
-
-
-	/* AAD (extra authenticate-only data) / masked 802.11 header
-	 * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
-
-	len_a = a4_included ? 28 : 22;
-	if (qos_included)
-		len_a += 2;
-
-	aad[0] = 0; /* (len_a >> 8) & 0xff; */
-	aad[1] = len_a & 0xff;
-	/* Mask FC: zero subtype b4 b5 b6 */
-	aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
-	/* Retry, PwrMgt, MoreData; set Protected */
-	aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
-	memcpy(&aad[4], &hdr->addr1, 18);
-
-	/* Mask Seq#, leave Frag# */
-	aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
-	aad[23] = 0;
-	if (a4_included) {
-		memcpy(&aad[24], hdr->addr4, 6);
-		aad[30] = 0;
-		aad[31] = 0;
-	} else
-		memset(&aad[24], 0, 8);
-	if (qos_included) {
-		u8 *dpos = &aad[a4_included ? 30 : 24];
-
-		/* Mask QoS Control field */
-		dpos[0] = qos_tid;
-		dpos[1] = 0;
-	}
-}
-
-
-static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
-{
-	hdr[0] = pn[5];
-	hdr[1] = pn[4];
-	hdr[2] = 0;
-	hdr[3] = 0x20 | (key_id << 6);
-	hdr[4] = pn[3];
-	hdr[5] = pn[2];
-	hdr[6] = pn[1];
-	hdr[7] = pn[0];
-}
-
-
-static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
-{
-	pn[0] = hdr[7];
-	pn[1] = hdr[6];
-	pn[2] = hdr[5];
-	pn[3] = hdr[4];
-	pn[4] = hdr[1];
-	pn[5] = hdr[0];
-	return (hdr[3] >> 6) & 0x03;
-}
-
-
-static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
-			    struct sk_buff *skb, int test)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_key *key = tx->key;
-	int hdrlen, len, tailneed;
-	u16 fc;
-	u8 *pos, *pn, *b_0, *aad, *scratch;
-	int i;
-
-	scratch = key->u.ccmp.tx_crypto_buf;
-	b_0 = scratch + 3 * AES_BLOCK_LEN;
-	aad = scratch + 4 * AES_BLOCK_LEN;
-
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
-	len = skb->len - hdrlen;
-
-	tailneed = !key->force_sw_encrypt ? 0 : CCMP_MIC_LEN;
-
-	if ((skb_headroom(skb) < CCMP_HDR_LEN ||
-	     skb_tailroom(skb) < tailneed)) {
-		I802_DEBUG_INC(tx->local->tx_expand_skb_head);
-		if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
-					      GFP_ATOMIC)))
-			return -1;
-	}
-
-	pos = skb_push(skb, CCMP_HDR_LEN);
-	memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
-	hdr = (struct ieee80211_hdr *) pos;
-	pos += hdrlen;
-
-	/* PN = PN + 1 */
-	pn = key->u.ccmp.tx_pn;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (test & WPA_TRIGGER_TX_REPLAY)
-		goto skip_pn_inc;
-pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
-		pn[i]++;
-		if (pn[i])
-			break;
-	}
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
-		test = 0;
-		goto pn_inc;
-	}
-skip_pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	ccmp_pn2hdr(pos, pn, key->keyidx);
-
-	if (!key->force_sw_encrypt) {
-		/* hwaccel - with preallocated room for CCMP header */
-		tx->u.tx.control->key_idx = key->hw_key_idx;
-		return 0;
-	}
-
-	pos += CCMP_HDR_LEN;
-	ccmp_special_blocks(skb, pn, b_0, aad, 0);
-	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
-				  pos, skb_put(skb, CCMP_MIC_LEN));
-
-	return 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-	struct ieee80211_key *key = tx->key;
-	u16 fc;
-	struct sk_buff *skb = tx->skb;
-	int test = 0;
-
-	fc = le16_to_cpu(hdr->frame_control);
-
-	if (!key || key->alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-	if (tx->sta) {
-		test = tx->sta->wpa_trigger;
-		tx->sta->wpa_trigger = 0;
-	} else {
-		test = tx->local->wpa_trigger;
-		tx->local->wpa_trigger = 0;
-	}
-	if (test &
-	    (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
-	     WPA_TRIGGER_TX_SKIP_SEQ)) {
-		printk(KERN_INFO "%s: WPA testing - CCMP TX packet number "
-		       "%s%s%s%s\n", tx->dev->name,
-		       tx->sta ? "[UNICAST]" : "[MULTICAST]",
-		       test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
-		       test & WPA_TRIGGER_TX_REPLAY_FRAG ?
-		       "[REPLAY FRAG]" : "",
-		       test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
-	}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-	tx->u.tx.control->icv_len = CCMP_MIC_LEN;
-	tx->u.tx.control->iv_len = CCMP_HDR_LEN;
-	ieee80211_tx_set_iswep(tx);
-
-	if (!tx->key->force_sw_encrypt &&
-	    !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
-		/* hwaccel - with no need for preallocated room for CCMP "
-		 * header or MIC fields */
-		tx->u.tx.control->key_idx = tx->key->hw_key_idx;
-		return TXRX_CONTINUE;
-	}
-
-	if (ccmp_encrypt_skb(tx, skb, test) < 0)
-		return TXRX_DROP;
-
-	if (tx->u.tx.extra_frag) {
-		int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-		if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
-			test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
-			    < 0)
-				return TXRX_DROP;
-		}
-	}
-
-	return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-	u16 fc;
-	int hdrlen;
-	struct ieee80211_key *key = rx->key;
-	struct sk_buff *skb = rx->skb;
-	u8 pn[CCMP_PN_LEN];
-	int data_len;
-
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
-
-	if (!key || key->alg != ALG_CCMP ||
-	    !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
-	    (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
-		return TXRX_CONTINUE;
-
-	data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
-	if (!rx->sta || data_len < 0)
-		return TXRX_DROP;
-
-	if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-	    !key->force_sw_encrypt &&
-	    !(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV))
-		return TXRX_CONTINUE;
-
-	(void) ccmp_hdr2pn(pn, skb->data + hdrlen);
-
-	if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
-#ifdef CONFIG_D80211_DEBUG
-		u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
-		printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
-		       MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
-		       "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
-		       MAC_ARG(rx->sta->addr),
-		       pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
-		       ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
-#endif /* CONFIG_D80211_DEBUG */
-		key->u.ccmp.replays++;
-		return TXRX_DROP;
-	}
-
-	if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-	    !key->force_sw_encrypt) {
-		/* hwaccel has already decrypted frame and verified MIC */
-	} else {
-		u8 *scratch, *b_0, *aad;
-
-		scratch = key->u.ccmp.rx_crypto_buf;
-		b_0 = scratch + 3 * AES_BLOCK_LEN;
-		aad = scratch + 4 * AES_BLOCK_LEN;
-
-		ccmp_special_blocks(skb, pn, b_0, aad, 1);
-
-		if (ieee80211_aes_ccm_decrypt(
-			    key->u.ccmp.tfm, scratch, b_0, aad,
-			    skb->data + hdrlen + CCMP_HDR_LEN, data_len,
-			    skb->data + skb->len - CCMP_MIC_LEN,
-			    skb->data + hdrlen + CCMP_HDR_LEN)) {
-			printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
-			       "frame from " MAC_FMT "\n", rx->dev->name,
-			       MAC_ARG(rx->sta->addr));
-			return TXRX_DROP;
-		}
-	}
-
-	memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
-
-	/* Remove CCMP header and MIC */
-	skb_trim(skb, skb->len - CCMP_MIC_LEN);
-	memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
-	skb_pull(skb, CCMP_HDR_LEN);
-
-	return TXRX_CONTINUE;
-}
-