Commit 139c3a04 authored by Volker Braun's avatar Volker Braun Committed by David S. Miller

[MAC80211]: ignore key index on pairwise key (WEP only)

Work-around for broken APs that use a non-zero key index for WEP
pairwise keys. With this patch, WEP encryption only is exempt from
providing a zero key index.
Signed-off-by: default avatarVolker Braun <volker.braun@physik.hu-berlin.de>
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Acked-by: default avatarMichael Wu <flamingice@sourmilk.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c39e3a0d
...@@ -73,17 +73,23 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, ...@@ -73,17 +73,23 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
sdata = IEEE80211_DEV_TO_SUB_IF(dev); sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
dev->name, idx);
return -EINVAL;
}
if (is_broadcast_ether_addr(sta_addr)) { if (is_broadcast_ether_addr(sta_addr)) {
sta = NULL; sta = NULL;
if (idx >= NUM_DEFAULT_KEYS) {
printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
dev->name, idx);
return -EINVAL;
}
key = sdata->keys[idx]; key = sdata->keys[idx];
} else { } else {
set_tx_key = 0; set_tx_key = 0;
if (idx != 0) { /*
* According to the standard, the key index of a pairwise
* key must be zero. However, some AP are broken when it
* comes to WEP key indices, so we work around this.
*/
if (idx != 0 && alg != ALG_WEP) {
printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for " printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
"individual key\n", dev->name); "individual key\n", dev->name);
return -EINVAL; return -EINVAL;
......
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