On Tue, 2015-09-15 at 17:18 +0200, Ondrej Zary wrote:
> IW_AUTH_ALG_OPEN_SYSTEM is ambiguous in set_auth for WEP as
> wpa_supplicant uses it for both no encryption and WEP open system.
> Cache the last mode set (only of these two) and use it here.
>
> This allows wpa_supplicant to work with unencrypted APs.
It seems like this will work; but to make the code clearer, define a
small static function like:
static inline void set_auth_type(struct airo_info *local, int auth_type)
{
local->config.authType = local->last_auth = auth_type;
}
and call that from everywhere that you're currently setting authType and
last_auth, except for airo_set_auth(). Less code and less probability
to forget to set last_auth in the future.
Dan
> Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
> ---
> drivers/net/wireless/airo.c | 33 ++++++++++++++++++++++++---------
> 1 file changed, 24 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
> index d0c97c2..a8f2767 100644
> --- a/drivers/net/wireless/airo.c
> +++ b/drivers/net/wireless/airo.c
> @@ -1237,6 +1237,7 @@ struct airo_info {
>
> int wep_capable;
> int max_wep_idx;
> + int last_auth;
>
> /* WPA-related stuff */
> unsigned int bssListFirst;
> @@ -3863,6 +3864,7 @@ static u16 setup_card(struct airo_info *ai, u8 *mac,
> int lock)
> }
> ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
> ai->config.authType = AUTH_OPEN;
> + ai->last_auth = AUTH_OPEN;
> ai->config.modulation = MOD_CCK;
>
> if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
> @@ -6370,6 +6372,7 @@ static int airo_set_encode(struct net_device *dev,
> if((index == current_index) && (key.len > 0) &&
> (local->config.authType == AUTH_OPEN)) {
> local->config.authType = AUTH_ENCRYPT;
> + local->last_auth = AUTH_ENCRYPT;
> }
> } else {
> /* Do we want to just set the transmit key index ? */
> @@ -6389,12 +6392,16 @@ static int airo_set_encode(struct net_device *dev,
> }
> }
> /* Read the flags */
> - if(dwrq->flags & IW_ENCODE_DISABLED)
> + if (dwrq->flags & IW_ENCODE_DISABLED) {
> local->config.authType = AUTH_OPEN; // disable encryption
> + local->last_auth = AUTH_OPEN;
> + }
> if(dwrq->flags & IW_ENCODE_RESTRICTED)
> local->config.authType = AUTH_SHAREDKEY; // Only Both
> - if(dwrq->flags & IW_ENCODE_OPEN)
> + if (dwrq->flags & IW_ENCODE_OPEN) {
> local->config.authType = AUTH_ENCRYPT; // Only Wep
> + local->last_auth = AUTH_ENCRYPT;
> + }
> /* Commit the changes to flags if needed */
> if (local->config.authType != currentAuthType)
> set_bit (FLAG_COMMIT, &local->flags);
> @@ -6549,12 +6556,16 @@ static int airo_set_encodeext(struct net_device *dev,
> }
>
> /* Read the flags */
> - if(encoding->flags & IW_ENCODE_DISABLED)
> + if (encoding->flags & IW_ENCODE_DISABLED) {
> local->config.authType = AUTH_OPEN; // disable encryption
> + local->last_auth = AUTH_OPEN;
> + }
> if(encoding->flags & IW_ENCODE_RESTRICTED)
> local->config.authType = AUTH_SHAREDKEY; // Only Both
> - if(encoding->flags & IW_ENCODE_OPEN)
> + if (encoding->flags & IW_ENCODE_OPEN) {
> local->config.authType = AUTH_ENCRYPT; // Only Wep
> + local->last_auth = AUTH_ENCRYPT;
> + }
> /* Commit the changes to flags if needed */
> if (local->config.authType != currentAuthType)
> set_bit (FLAG_COMMIT, &local->flags);
> @@ -6658,10 +6669,13 @@ static int airo_set_auth(struct net_device *dev,
> case IW_AUTH_DROP_UNENCRYPTED:
> if (param->value) {
> /* Only change auth type if unencrypted */
> - if (currentAuthType == AUTH_OPEN)
> + if (currentAuthType == AUTH_OPEN) {
> local->config.authType = AUTH_ENCRYPT;
> + local->last_auth = AUTH_ENCRYPT;
> + }
> } else {
> local->config.authType = AUTH_OPEN;
> + local->last_auth = AUTH_OPEN;
> }
>
> /* Commit the changes to flags if needed */
> @@ -6670,13 +6684,14 @@ static int airo_set_auth(struct net_device *dev,
> break;
>
> case IW_AUTH_80211_AUTH_ALG: {
> - /* FIXME: What about AUTH_OPEN? This API seems to
> - * disallow setting our auth to AUTH_OPEN.
> - */
> if (param->value & IW_AUTH_ALG_SHARED_KEY) {
> local->config.authType = AUTH_SHAREDKEY;
> } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
> - local->config.authType = AUTH_ENCRYPT;
> + /* We don't know here if WEP open system or
> + * unencrypted mode was requested - so use the
> + * last mode (of these two) used last time
> + */
> + local->config.authType = local->last_auth;
> } else
> return -EINVAL;
>
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