1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
8 * Purpose: Implement functions for 802.11i Key management
24 int vnt_key_init_table(struct vnt_private *priv)
27 u8 data[MAX_KEY_TABLE];
29 for (i = 0; i < MAX_KEY_TABLE; i++)
32 return vnt_control_out(priv, MESSAGE_TYPE_CLRKEYENTRY,
33 0, 0, ARRAY_SIZE(data), data);
36 static int vnt_set_keymode(struct ieee80211_hw *hw, u8 *mac_addr,
37 struct ieee80211_key_conf *key, u32 key_type,
40 struct vnt_private *priv = hw->priv;
41 u8 broadcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
45 u8 key_inx = key->keyidx;
51 bssid = &broadcast[0];
53 if (key_type != VNT_KEY_DEFAULTKEY) {
54 for (i = 0; i < (MAX_KEY_TABLE - 1); i++) {
55 if (!test_bit(i, &priv->key_entry_inuse)) {
56 set_bit(i, &priv->key_entry_inuse);
59 entry = key->hw_key_idx;
66 case VNT_KEY_DEFAULTKEY:
67 /* default key last entry */
68 entry = MAX_KEY_TABLE - 1;
69 key->hw_key_idx = entry;
71 case VNT_KEY_GROUP_ADDRESS:
72 key_mode = mode | (mode << 4);
77 case VNT_KEY_PAIRWISE:
87 if (mode == KEY_CTL_WEP) {
88 if (key->keylen == WLAN_KEY_LEN_WEP40)
90 if (key->keylen == WLAN_KEY_LEN_WEP104)
94 return vnt_mac_set_keyentry(priv, key_mode, entry,
95 key_inx, bssid, key->key);
98 int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
99 struct ieee80211_vif *vif, struct ieee80211_key_conf *key)
101 struct vnt_private *priv = hw->priv;
106 mac_addr = &sta->addr[0];
108 switch (key->cipher) {
109 case WLAN_CIPHER_SUITE_WEP40:
110 case WLAN_CIPHER_SUITE_WEP104:
111 vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
114 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
116 return vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
119 case WLAN_CIPHER_SUITE_TKIP:
120 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
121 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
123 key_dec_mode = KEY_CTL_TKIP;
126 case WLAN_CIPHER_SUITE_CCMP:
127 if (priv->local_id <= MAC_REVISION_A1)
130 key_dec_mode = KEY_CTL_CCMP;
132 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
138 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
139 return vnt_set_keymode(hw, mac_addr, key, VNT_KEY_PAIRWISE,
142 return vnt_set_keymode(hw, mac_addr, key,
143 VNT_KEY_GROUP_ADDRESS, key_dec_mode);