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![Varsha Rao](/assets/img/avatar_default.png)
This patch fixes the checkpatch issue by removing the Free Software Foundation's mailing address from the sample GPL notice. Because the FSF has changed address in the past, and may change again. Linux already includes a copy of the GPL. Signed-off-by: Varsha Rao <rvarsha016@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
153 lines
3.5 KiB
C
153 lines
3.5 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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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*/
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#include "tmacro.h"
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#include "key.h"
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#include "mac.h"
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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, u32 mode,
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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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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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MACvSetKeyEntry(priv, key_mode, entry, key_inx,
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bssid, (u32 *)key->key, priv->byLocalID);
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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;
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u32 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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MACvDisableKeyEntry(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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MACvDisableKeyEntry(priv, u);
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vnt_set_keymode(hw, mac_addr,
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key, VNT_KEY_DEFAULTKEY, 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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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,
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key, VNT_KEY_PAIRWISE, key_dec_mode, true);
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} else {
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vnt_set_keymode(hw, mac_addr,
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key, VNT_KEY_DEFAULTKEY, key_dec_mode, true);
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vnt_set_keymode(hw, (u8 *)conf->bssid,
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key, 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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