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,
38 u32 mode, bool onfly_latch)
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_ALLGROUP:
72 key_mode |= VNT_KEY_ALLGROUP;
74 key_mode |= VNT_KEY_ONFLY_ALL;
76 case VNT_KEY_GROUP_ADDRESS:
80 key_mode |= (mode << 4);
81 key_mode |= VNT_KEY_GROUP;
83 case VNT_KEY_PAIRWISE:
92 key_mode |= VNT_KEY_ONFLY;
94 if (mode == KEY_CTL_WEP) {
95 if (key->keylen == WLAN_KEY_LEN_WEP40)
97 if (key->keylen == WLAN_KEY_LEN_WEP104)
101 vnt_mac_set_keyentry(priv, key_mode, entry, key_inx, bssid, key->key);
106 int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
107 struct ieee80211_vif *vif, struct ieee80211_key_conf *key)
109 struct vnt_private *priv = hw->priv;
115 mac_addr = &sta->addr[0];
117 switch (key->cipher) {
119 for (u = 0 ; u < MAX_KEY_TABLE; u++)
120 vnt_mac_disable_keyentry(priv, u);
123 case WLAN_CIPHER_SUITE_WEP40:
124 case WLAN_CIPHER_SUITE_WEP104:
125 for (u = 0; u < MAX_KEY_TABLE; u++)
126 vnt_mac_disable_keyentry(priv, u);
128 vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
131 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
134 case WLAN_CIPHER_SUITE_TKIP:
135 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
136 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
138 key_dec_mode = KEY_CTL_TKIP;
141 case WLAN_CIPHER_SUITE_CCMP:
142 if (priv->local_id <= MAC_REVISION_A1)
145 key_dec_mode = KEY_CTL_CCMP;
147 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
153 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
154 vnt_set_keymode(hw, mac_addr, key, VNT_KEY_PAIRWISE,
157 vnt_set_keymode(hw, mac_addr, key, VNT_KEY_GROUP_ADDRESS,