1 files changed, 0 insertions, 241 deletions

diff --git a/drivers/staging/wfx/key.c b/drivers/staging/wfx/key.c
deleted file mode 100644
index 65134a174683..000000000000
--- a/drivers/staging/wfx/key.c
+++ /dev/null
@@ -1,241 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Key management related functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "key.h"
-#include "wfx.h"
-#include "hif_tx_mib.h"
-
-static int wfx_alloc_key(struct wfx_dev *wdev)
-{
-	int idx;
-
-	idx = ffs(~wdev->key_map) - 1;
-	if (idx < 0 || idx >= MAX_KEY_ENTRIES)
-		return -1;
-
-	wdev->key_map |= BIT(idx);
-	return idx;
-}
-
-static void wfx_free_key(struct wfx_dev *wdev, int idx)
-{
-	WARN(!(wdev->key_map & BIT(idx)), "inconsistent key allocation");
-	wdev->key_map &= ~BIT(idx);
-}
-
-static u8 fill_wep_pair(struct hif_wep_pairwise_key *msg,
-			struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	WARN(key->keylen > sizeof(msg->key_data), "inconsistent data");
-	msg->key_length = key->keylen;
-	memcpy(msg->key_data, key->key, key->keylen);
-	ether_addr_copy(msg->peer_address, peer_addr);
-	return HIF_KEY_TYPE_WEP_PAIRWISE;
-}
-
-static u8 fill_wep_group(struct hif_wep_group_key *msg,
-			 struct ieee80211_key_conf *key)
-{
-	WARN(key->keylen > sizeof(msg->key_data), "inconsistent data");
-	msg->key_id = key->keyidx;
-	msg->key_length = key->keylen;
-	memcpy(msg->key_data, key->key, key->keylen);
-	return HIF_KEY_TYPE_WEP_DEFAULT;
-}
-
-static u8 fill_tkip_pair(struct hif_tkip_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->tkip_key_data)
-			    + sizeof(msg->tx_mic_key)
-			    + sizeof(msg->rx_mic_key), "inconsistent data");
-	memcpy(msg->tkip_key_data, keybuf, sizeof(msg->tkip_key_data));
-	keybuf += sizeof(msg->tkip_key_data);
-	memcpy(msg->tx_mic_key, keybuf, sizeof(msg->tx_mic_key));
-	keybuf += sizeof(msg->tx_mic_key);
-	memcpy(msg->rx_mic_key, keybuf, sizeof(msg->rx_mic_key));
-	ether_addr_copy(msg->peer_address, peer_addr);
-	return HIF_KEY_TYPE_TKIP_PAIRWISE;
-}
-
-static u8 fill_tkip_group(struct hif_tkip_group_key *msg,
-			  struct ieee80211_key_conf *key,
-			  struct ieee80211_key_seq *seq,
-			  enum nl80211_iftype iftype)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->tkip_key_data)
-			    + 2 * sizeof(msg->rx_mic_key), "inconsistent data");
-	msg->key_id = key->keyidx;
-	memcpy(msg->rx_sequence_counter,
-	       &seq->tkip.iv16, sizeof(seq->tkip.iv16));
-	memcpy(msg->rx_sequence_counter + sizeof(u16),
-	       &seq->tkip.iv32, sizeof(seq->tkip.iv32));
-	memcpy(msg->tkip_key_data, keybuf, sizeof(msg->tkip_key_data));
-	keybuf += sizeof(msg->tkip_key_data);
-	if (iftype == NL80211_IFTYPE_AP)
-		/* Use Tx MIC Key */
-		memcpy(msg->rx_mic_key, keybuf + 0, sizeof(msg->rx_mic_key));
-	else
-		/* Use Rx MIC Key */
-		memcpy(msg->rx_mic_key, keybuf + 8, sizeof(msg->rx_mic_key));
-	return HIF_KEY_TYPE_TKIP_GROUP;
-}
-
-static u8 fill_ccmp_pair(struct hif_aes_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	WARN(key->keylen != sizeof(msg->aes_key_data), "inconsistent data");
-	ether_addr_copy(msg->peer_address, peer_addr);
-	memcpy(msg->aes_key_data, key->key, key->keylen);
-	return HIF_KEY_TYPE_AES_PAIRWISE;
-}
-
-static u8 fill_ccmp_group(struct hif_aes_group_key *msg,
-			  struct ieee80211_key_conf *key,
-			  struct ieee80211_key_seq *seq)
-{
-	WARN(key->keylen != sizeof(msg->aes_key_data), "inconsistent data");
-	memcpy(msg->aes_key_data, key->key, key->keylen);
-	memcpy(msg->rx_sequence_counter, seq->ccmp.pn, sizeof(seq->ccmp.pn));
-	memreverse(msg->rx_sequence_counter, sizeof(seq->ccmp.pn));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_AES_GROUP;
-}
-
-static u8 fill_sms4_pair(struct hif_wapi_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->wapi_key_data)
-			    + sizeof(msg->mic_key_data), "inconsistent data");
-	ether_addr_copy(msg->peer_address, peer_addr);
-	memcpy(msg->wapi_key_data, keybuf, sizeof(msg->wapi_key_data));
-	keybuf += sizeof(msg->wapi_key_data);
-	memcpy(msg->mic_key_data, keybuf, sizeof(msg->mic_key_data));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_WAPI_PAIRWISE;
-}
-
-static u8 fill_sms4_group(struct hif_wapi_group_key *msg,
-			  struct ieee80211_key_conf *key)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->wapi_key_data)
-			    + sizeof(msg->mic_key_data), "inconsistent data");
-	memcpy(msg->wapi_key_data, keybuf, sizeof(msg->wapi_key_data));
-	keybuf += sizeof(msg->wapi_key_data);
-	memcpy(msg->mic_key_data, keybuf, sizeof(msg->mic_key_data));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_WAPI_GROUP;
-}
-
-static u8 fill_aes_cmac_group(struct hif_igtk_group_key *msg,
-			      struct ieee80211_key_conf *key,
-			      struct ieee80211_key_seq *seq)
-{
-	WARN(key->keylen != sizeof(msg->igtk_key_data), "inconsistent data");
-	memcpy(msg->igtk_key_data, key->key, key->keylen);
-	memcpy(msg->ipn, seq->aes_cmac.pn, sizeof(seq->aes_cmac.pn));
-	memreverse(msg->ipn, sizeof(seq->aes_cmac.pn));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_IGTK_GROUP;
-}
-
-static int wfx_add_key(struct wfx_vif *wvif, struct ieee80211_sta *sta,
-		       struct ieee80211_key_conf *key)
-{
-	int ret;
-	struct hif_req_add_key k = { };
-	struct ieee80211_key_seq seq;
-	struct wfx_dev *wdev = wvif->wdev;
-	int idx = wfx_alloc_key(wvif->wdev);
-	bool pairwise = key->flags & IEEE80211_KEY_FLAG_PAIRWISE;
-
-	WARN(key->flags & IEEE80211_KEY_FLAG_PAIRWISE && !sta, "inconsistent data");
-	ieee80211_get_key_rx_seq(key, 0, &seq);
-	if (idx < 0)
-		return -EINVAL;
-	k.int_id = wvif->id;
-	k.entry_index = idx;
-	if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
-	    key->cipher == WLAN_CIPHER_SUITE_WEP104) {
-		if (pairwise)
-			k.type = fill_wep_pair(&k.key.wep_pairwise_key, key,
-					       sta->addr);
-		else
-			k.type = fill_wep_group(&k.key.wep_group_key, key);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
-		if (pairwise)
-			k.type = fill_tkip_pair(&k.key.tkip_pairwise_key, key,
-						sta->addr);
-		else
-			k.type = fill_tkip_group(&k.key.tkip_group_key, key,
-						 &seq, wvif->vif->type);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_CCMP) {
-		if (pairwise)
-			k.type = fill_ccmp_pair(&k.key.aes_pairwise_key, key,
-						sta->addr);
-		else
-			k.type = fill_ccmp_group(&k.key.aes_group_key, key,
-						 &seq);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_SMS4) {
-		if (pairwise)
-			k.type = fill_sms4_pair(&k.key.wapi_pairwise_key, key,
-						sta->addr);
-		else
-			k.type = fill_sms4_group(&k.key.wapi_group_key, key);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
-		k.type = fill_aes_cmac_group(&k.key.igtk_group_key, key, &seq);
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
-	} else {
-		dev_warn(wdev->dev, "unsupported key type %d\n", key->cipher);
-		wfx_free_key(wdev, idx);
-		return -EOPNOTSUPP;
-	}
-	ret = hif_add_key(wdev, &k);
-	if (ret) {
-		wfx_free_key(wdev, idx);
-		return -EOPNOTSUPP;
-	}
-	key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE |
-		      IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
-	key->hw_key_idx = idx;
-	return 0;
-}
-
-static int wfx_remove_key(struct wfx_vif *wvif, struct ieee80211_key_conf *key)
-{
-	WARN(key->hw_key_idx >= MAX_KEY_ENTRIES, "corrupted hw_key_idx");
-	wfx_free_key(wvif->wdev, key->hw_key_idx);
-	return hif_remove_key(wvif->wdev, key->hw_key_idx);
-}
-
-int wfx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		struct ieee80211_vif *vif, struct ieee80211_sta *sta,
-		struct ieee80211_key_conf *key)
-{
-	int ret = -EOPNOTSUPP;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	mutex_lock(&wvif->wdev->conf_mutex);
-	if (cmd == SET_KEY)
-		ret = wfx_add_key(wvif, sta, key);
-	if (cmd == DISABLE_KEY)
-		ret = wfx_remove_key(wvif, key);
-	mutex_unlock(&wvif->wdev->conf_mutex);
-	return ret;
-}
-