![Greg Kroah-Hartman](/assets/img/avatar_default.png)
Now that the SPDX tag is in all vt6656 files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Forest Bond <forest@alittletooquiet.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
165 lines
3.5 KiB
C
165 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* File: key.c
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*
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* Purpose: Implement functions for 802.11i Key management
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*
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* Author: Jerry Chen
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*
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* Date: May 29, 2003
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*
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* Functions:
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*
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* Revision History:
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*
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*/
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#include "mac.h"
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#include "key.h"
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#include "usbpipe.h"
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int vnt_key_init_table(struct vnt_private *priv)
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{
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u8 i;
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u8 data[MAX_KEY_TABLE];
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for (i = 0; i < MAX_KEY_TABLE; i++)
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data[i] = i;
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return vnt_control_out(priv, MESSAGE_TYPE_CLRKEYENTRY,
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0, 0, ARRAY_SIZE(data), data);
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}
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static int vnt_set_keymode(struct ieee80211_hw *hw, u8 *mac_addr,
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struct ieee80211_key_conf *key, u32 key_type,
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u32 mode, bool onfly_latch)
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{
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struct vnt_private *priv = hw->priv;
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u8 broadcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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u16 key_mode = 0;
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u32 entry = 0;
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u8 *bssid;
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u8 key_inx = key->keyidx;
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u8 i;
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if (mac_addr)
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bssid = mac_addr;
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else
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bssid = &broadcast[0];
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if (key_type != VNT_KEY_DEFAULTKEY) {
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for (i = 0; i < (MAX_KEY_TABLE - 1); i++) {
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if (!test_bit(i, &priv->key_entry_inuse)) {
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set_bit(i, &priv->key_entry_inuse);
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key->hw_key_idx = i;
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entry = key->hw_key_idx;
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break;
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}
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}
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}
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switch (key_type) {
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/* fallthrough */
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case VNT_KEY_DEFAULTKEY:
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/* default key last entry */
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entry = MAX_KEY_TABLE - 1;
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key->hw_key_idx = entry;
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case VNT_KEY_ALLGROUP:
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key_mode |= VNT_KEY_ALLGROUP;
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if (onfly_latch)
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key_mode |= VNT_KEY_ONFLY_ALL;
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case VNT_KEY_GROUP_ADDRESS:
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key_mode |= mode;
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case VNT_KEY_GROUP:
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key_mode |= (mode << 4);
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key_mode |= VNT_KEY_GROUP;
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break;
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case VNT_KEY_PAIRWISE:
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key_mode |= mode;
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key_inx = 4;
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/* Don't save entry for pairwise key for station mode */
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if (priv->op_mode == NL80211_IFTYPE_STATION)
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clear_bit(entry, &priv->key_entry_inuse);
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break;
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default:
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return -EINVAL;
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}
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if (onfly_latch)
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key_mode |= VNT_KEY_ONFLY;
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if (mode == KEY_CTL_WEP) {
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if (key->keylen == WLAN_KEY_LEN_WEP40)
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key->key[15] &= 0x7f;
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if (key->keylen == WLAN_KEY_LEN_WEP104)
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key->key[15] |= 0x80;
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}
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vnt_mac_set_keyentry(priv, key_mode, entry, key_inx, bssid, key->key);
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return 0;
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}
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int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
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struct ieee80211_vif *vif, struct ieee80211_key_conf *key)
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{
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struct ieee80211_bss_conf *conf = &vif->bss_conf;
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struct vnt_private *priv = hw->priv;
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u8 *mac_addr = NULL;
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u8 key_dec_mode = 0;
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int ret = 0, u;
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if (sta)
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mac_addr = &sta->addr[0];
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switch (key->cipher) {
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case 0:
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for (u = 0 ; u < MAX_KEY_TABLE; u++)
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vnt_mac_disable_keyentry(priv, u);
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return ret;
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case WLAN_CIPHER_SUITE_WEP40:
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case WLAN_CIPHER_SUITE_WEP104:
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for (u = 0; u < MAX_KEY_TABLE; u++)
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vnt_mac_disable_keyentry(priv, u);
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vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
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KEY_CTL_WEP, true);
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key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
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return ret;
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case WLAN_CIPHER_SUITE_TKIP:
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key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
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key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
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key_dec_mode = KEY_CTL_TKIP;
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break;
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case WLAN_CIPHER_SUITE_CCMP:
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if (priv->local_id <= MAC_REVISION_A1)
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return -EINVAL;
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key_dec_mode = KEY_CTL_CCMP;
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key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
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}
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if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
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vnt_set_keymode(hw, mac_addr, key, VNT_KEY_PAIRWISE,
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key_dec_mode, true);
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} else {
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vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
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key_dec_mode, true);
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vnt_set_keymode(hw, (u8 *)conf->bssid, key,
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VNT_KEY_GROUP_ADDRESS, key_dec_mode, true);
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}
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return 0;
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}
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