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rndis_wlan: add cfg80211 key handling

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Add cfg80211 add_key/del_key/set_default_key and convert wext to use theim.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jussi Kivilinna 2009-08-28 13:27:58 +03:00 committed by John W. Linville
parent 5554adbe0d
commit 84bf8400ce
1 changed files with 103 additions and 30 deletions
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133
drivers/net/wireless/rndis_wlan.c
View file

@ -424,7 +424,7 @@ static const u32 rndis_cipher_suites[] = {
struct rndis_wlan_encr_key {
int len;
int cipher;
u32 cipher;
u8 material[32];
u8 bssid[ETH_ALEN];
bool pairwise;
@ -520,6 +520,16 @@ static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
static int rndis_set_channel(struct wiphy *wiphy,
struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, const u8 *mac_addr,
struct key_params *params);
static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, const u8 *mac_addr);
static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index);
static struct cfg80211_ops rndis_config_ops = {
.change_virtual_intf = rndis_change_virtual_intf,
.scan = rndis_scan,
@ -531,6 +541,9 @@ static struct cfg80211_ops rndis_config_ops = {
.join_ibss = rndis_join_ibss,
.leave_ibss = rndis_leave_ibss,
.set_channel = rndis_set_channel,
.add_key = rndis_add_key,
.del_key = rndis_del_key,
.set_default_key = rndis_set_default_key,
};
static void *rndis_wiphy_privid = &rndis_wiphy_privid;
@ -1258,7 +1271,10 @@ static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
struct ndis_80211_wep_key ndis_key;
int cipher, ret;
u32 cipher;
int ret;
devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
return -EINVAL;
@ -1302,8 +1318,8 @@ static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
int index, const u8 *addr, const u8 *rx_seq, int cipher,
int flags)
int index, const u8 *addr, const u8 *rx_seq,
int seq_len, u32 cipher, int flags)
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
struct ndis_80211_key ndis_key;
@ -1319,10 +1335,18 @@ static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
key_len);
return -EINVAL;
}
if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq) {
devdbg(usbdev, "add_wpa_key: recv seq flag without buffer");
return -EINVAL;
if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
if (!rx_seq || seq_len <= 0) {
devdbg(usbdev, "add_wpa_key: recv seq flag without"
"buffer");
return -EINVAL;
}
if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
return -EINVAL;
}
}
is_addr_ok = addr && !is_zero_ether_addr(addr) &&
!is_broadcast_ether_addr(addr);
if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
@ -1353,7 +1377,7 @@ static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
memcpy(ndis_key.material, key, key_len);
if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
memcpy(ndis_key.rsc, rx_seq, 6);
memcpy(ndis_key.rsc, rx_seq, seq_len);
if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
/* pairwise key */
@ -1392,31 +1416,17 @@ static int restore_key(struct usbnet *usbdev, int key_idx)
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
struct rndis_wlan_encr_key key;
int flags;
if (is_wpa_key(priv, key_idx))
return 0;
key = priv->encr_keys[key_idx];
devdbg(usbdev, "restore_key: %i:%s:%i", key_idx,
is_wpa_key(priv, key_idx) ? "wpa" : "wep",
key.len);
devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
if (key.len == 0)
return 0;
if (is_wpa_key(priv, key_idx)) {
flags = 0;
/*if (priv->encr_tx_key_index == key_idx)
flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;*/
if (!is_zero_ether_addr(key.bssid) &&
!is_broadcast_ether_addr(key.bssid))
flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
return add_wpa_key(usbdev, key.material, key.len, key_idx,
key.bssid, NULL, key.cipher, flags);
}
return add_wep_key(usbdev, key.material, key.len, key_idx);
}
@ -1437,7 +1447,7 @@ static void clear_key(struct rndis_wlan_private *priv, int idx)
/* remove_key is for both wep and wpa */
static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
{
struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
struct ndis_80211_remove_key remove_key;
@ -2041,6 +2051,69 @@ static int rndis_set_channel(struct wiphy *wiphy,
ieee80211_frequency_to_channel(chan->center_freq));
}
static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, const u8 *mac_addr,
struct key_params *params)
{
struct rndis_wlan_private *priv = wiphy_priv(wiphy);
struct usbnet *usbdev = priv->usbdev;
int flags;
devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
params->cipher);
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
return add_wep_key(usbdev, params->key, params->key_len,
key_index);
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
flags = 0;
if (params->seq && params->seq_len > 0)
flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
if (mac_addr)
flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
NDIS_80211_ADDKEY_TRANSMIT_KEY;
return add_wpa_key(usbdev, params->key, params->key_len,
key_index, mac_addr, params->seq,
params->seq_len, params->cipher, flags);
default:
devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
params->cipher);
return -ENOTSUPP;
}
}
static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, const u8 *mac_addr)
{
struct rndis_wlan_private *priv = wiphy_priv(wiphy);
struct usbnet *usbdev = priv->usbdev;
devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
return remove_key(usbdev, key_index, mac_addr);
}
static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index)
{
struct rndis_wlan_private *priv = wiphy_priv(wiphy);
struct usbnet *usbdev = priv->usbdev;
struct rndis_wlan_encr_key key;
devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
priv->encr_tx_key_index = key_index;
key = priv->encr_keys[key_index];
return add_wep_key(usbdev, key.material, key.len, key_index);
}
/*
* wireless extension handlers
*/
@ -2268,7 +2341,6 @@ static int rndis_iw_get_auth(struct net_device *dev,
}
return 0;
}
#endif
static int rndis_iw_set_encode(struct net_device *dev,
@ -2387,6 +2459,7 @@ static int rndis_iw_set_encode_ext(struct net_device *dev,
(u8 *)&ext->addr.sa_data, ext->rx_seq, cipher,
flags);
}
#endif
static int rndis_iw_get_rate(struct net_device *dev,
@ -2444,8 +2517,8 @@ static const iw_handler rndis_iw_handler[] =
IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag,
IW_IOCTL(SIOCSIWTXPOW) = (iw_handler) cfg80211_wext_siwtxpower,
IW_IOCTL(SIOCGIWTXPOW) = (iw_handler) cfg80211_wext_giwtxpower,
IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
IW_IOCTL(SIOCSIWENCODE) = (iw_handler) cfg80211_wext_siwencode,
IW_IOCTL(SIOCSIWENCODEEXT) = (iw_handler) cfg80211_wext_siwencodeext,
IW_IOCTL(SIOCSIWAUTH) = (iw_handler) cfg80211_wext_siwauth,
IW_IOCTL(SIOCGIWAUTH) = (iw_handler) cfg80211_wext_giwauth,
IW_IOCTL(SIOCSIWGENIE) = (iw_handler) cfg80211_wext_siwgenie,