2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
17 * Purpose: Implement functions for 802.11i Key management
29 static int vnt_set_keymode(struct ieee80211_hw
*hw
, u8
*mac_addr
,
30 struct ieee80211_key_conf
*key
, u32 key_type
, u32 mode
,
33 struct vnt_private
*priv
= hw
->priv
;
34 u8 broadcast
[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
38 u8 key_inx
= key
->keyidx
;
44 bssid
= &broadcast
[0];
46 if (key_type
!= VNT_KEY_DEFAULTKEY
) {
47 for (i
= 0; i
< (MAX_KEY_TABLE
- 1); i
++) {
48 if (!test_bit(i
, &priv
->key_entry_inuse
)) {
49 set_bit(i
, &priv
->key_entry_inuse
);
52 entry
= key
->hw_key_idx
;
60 case VNT_KEY_DEFAULTKEY
:
61 /* default key last entry */
62 entry
= MAX_KEY_TABLE
- 1;
63 key
->hw_key_idx
= entry
;
64 case VNT_KEY_ALLGROUP
:
65 key_mode
|= VNT_KEY_ALLGROUP
;
67 key_mode
|= VNT_KEY_ONFLY_ALL
;
68 case VNT_KEY_GROUP_ADDRESS
:
71 key_mode
|= (mode
<< 4);
72 key_mode
|= VNT_KEY_GROUP
;
74 case VNT_KEY_PAIRWISE
:
83 key_mode
|= VNT_KEY_ONFLY
;
85 if (mode
== KEY_CTL_WEP
) {
86 if (key
->keylen
== WLAN_KEY_LEN_WEP40
)
88 if (key
->keylen
== WLAN_KEY_LEN_WEP104
)
92 MACvSetKeyEntry(priv
, key_mode
, entry
, key_inx
,
93 bssid
, (u32
*)key
->key
, priv
->byLocalID
);
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 ieee80211_bss_conf
*conf
= &vif
->bss_conf
;
102 struct vnt_private
*priv
= hw
->priv
;
109 mac_addr
= &sta
->addr
[0];
111 switch (key
->cipher
) {
113 for (u
= 0 ; u
< MAX_KEY_TABLE
; u
++)
114 MACvDisableKeyEntry(priv
, u
);
117 case WLAN_CIPHER_SUITE_WEP40
:
118 case WLAN_CIPHER_SUITE_WEP104
:
119 for (u
= 0; u
< MAX_KEY_TABLE
; u
++)
120 MACvDisableKeyEntry(priv
, u
);
122 vnt_set_keymode(hw
, mac_addr
,
123 key
, VNT_KEY_DEFAULTKEY
, KEY_CTL_WEP
, true);
125 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
128 case WLAN_CIPHER_SUITE_TKIP
:
129 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
130 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
132 key_dec_mode
= KEY_CTL_TKIP
;
135 case WLAN_CIPHER_SUITE_CCMP
:
136 key_dec_mode
= KEY_CTL_CCMP
;
138 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
141 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
142 vnt_set_keymode(hw
, mac_addr
,
143 key
, VNT_KEY_PAIRWISE
, key_dec_mode
, true);
145 vnt_set_keymode(hw
, mac_addr
,
146 key
, VNT_KEY_DEFAULTKEY
, key_dec_mode
, true);
148 vnt_set_keymode(hw
, (u8
*)conf
->bssid
,
149 key
, VNT_KEY_GROUP_ADDRESS
, key_dec_mode
, true);