Basic station mode support.
Signed-off-by: David Kilroy <kilroyd@xxxxxxxxxxxxxx>
---
drivers/net/wireless/orinoco/cfg.c | 236 ++++++++++++++++++++++++++++++++++++
1 files changed, 236 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/orinoco/cfg.c b/drivers/net/wireless/orinoco/cfg.c
index 1a87d3a..56bd4f1 100644
--- a/drivers/net/wireless/orinoco/cfg.c
+++ b/drivers/net/wireless/orinoco/cfg.c
@@ -156,7 +156,243 @@ static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev,
return err;
}
+/* Helper to ensure all keys are valid for the current encoding
+ algorithm */
+static void orinoco_set_encoding(struct orinoco_private *priv,
+ enum orinoco_alg encoding)
+{
+ if (priv->encode_alg &&
+ priv->encode_alg != encoding) {
+ int i;
+
+ for (i = 0; i < ORINOCO_MAX_KEYS; i++) {
+ kfree(priv->keys[i].key);
+ kfree(priv->keys[i].seq);
+ priv->keys[i].key = NULL;
+ priv->keys[i].seq = NULL;
+ priv->keys[i].key_len = 0;
+ priv->keys[i].seq_len = 0;
+ priv->keys[i].cipher = 0;
+ }
+
+ if (priv->encode_alg == ORINOCO_ALG_TKIP &&
+ priv->has_wpa) {
+ (void) orinoco_clear_tkip_key(priv, i);
+ (void) orinoco_clear_tkip_key(priv, i);
+ (void) orinoco_clear_tkip_key(priv, i);
+ (void) orinoco_clear_tkip_key(priv, i);
+ } else if (priv->encode_alg == ORINOCO_ALG_WEP)
+ __orinoco_hw_setup_wepkeys(priv);
+ }
+ priv->encode_alg = encoding;
+}
+
+/* Helper routine to record keys
+ * Do not call from interrupt context */
+static int orinoco_set_key(struct orinoco_private *priv, int index,
+ enum orinoco_alg alg, const u8 *key, int key_len,
+ const u8 *seq, int seq_len)
+{
+ kzfree(priv->keys[index].key);
+ kzfree(priv->keys[index].seq);
+
+ if (key_len) {
+ priv->keys[index].key = kzalloc(key_len, GFP_KERNEL);
+ if (!priv->keys[index].key)
+ goto nomem;
+ } else
+ priv->keys[index].key = NULL;
+
+ if (seq_len) {
+ priv->keys[index].seq = kzalloc(seq_len, GFP_KERNEL);
+ if (!priv->keys[index].seq)
+ goto free_key;
+ } else
+ priv->keys[index].seq = NULL;
+
+ priv->keys[index].key_len = key_len;
+ priv->keys[index].seq_len = seq_len;
+
+ if (key_len)
+ memcpy(priv->keys[index].key, key, key_len);
+ if (seq_len)
+ memcpy(priv->keys[index].seq, seq, seq_len);
+
+
+ switch (alg) {
+ case ORINOCO_ALG_TKIP:
+ priv->keys[index].cipher = WLAN_CIPHER_SUITE_TKIP;
+ break;
+
+ case ORINOCO_ALG_WEP:
+ priv->keys[index].cipher = (key_len > SMALL_KEY_SIZE) ?
+ WLAN_CIPHER_SUITE_WEP104 : WLAN_CIPHER_SUITE_WEP40;
+ break;
+
+ case ORINOCO_ALG_NONE:
+ default:
+ priv->keys[index].cipher = 0;
+ break;
+ }
+
+ return 0;
+
+free_key:
+ kfree(priv->keys[index].key);
+ priv->keys[index].key = NULL;
+
+nomem:
+ priv->keys[index].key_len = 0;
+ priv->keys[index].seq_len = 0;
+ priv->keys[index].cipher = 0;
+
+ return -ENOMEM;
+}
+
+/* Setup channel, SSID and BSSID */
+static int __orinoco_connect(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *bssid, const u8 *ssid,
+ u8 ssid_len)
+{
+ struct orinoco_private *priv = wiphy_priv(wiphy);
+
+ if (channel) {
+ int chan;
+
+ chan = ieee80211_freq_to_dsss_chan(channel->center_freq);
+
+ if ((chan > 0) && (chan < NUM_CHANNELS) &&
+ (priv->channel_mask & (1 << chan)))
+ priv->channel = chan;
+ }
+
+ memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
+ if (ssid)
+ memcpy(priv->desired_essid, ssid, ssid_len);
+
+ if (bssid) {
+ memcpy(priv->desired_bssid, bssid, ETH_ALEN);
+
+ /* Intersil firmware hangs if you try to roam manually
+ * without an ESSID set. */
+ if ((priv->firmware_type == FIRMWARE_TYPE_INTERSIL) &&
+ (priv->desired_essid[0] == 0)) {
+ printk(KERN_WARNING "%s: Desired SSID must be set for "
+ "manual roaming\n", wiphy_name(wiphy));
+ return -EOPNOTSUPP;
+ }
+
+ priv->bssid_fixed = 1;
+ } else {
+ memset(priv->desired_bssid, 0, ETH_ALEN);
+ priv->bssid_fixed = 0;
+ }
+
+ return 0;
+}
+
+static int orinoco_connect(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_connect_params *sme)
+{
+ struct orinoco_private *priv = wiphy_priv(wiphy);
+ enum orinoco_alg encode_alg;
+ unsigned long lock;
+ int err;
+
+ if (orinoco_lock(priv, &lock) != 0)
+ return -EBUSY;
+
+ /* Setup the requested parameters in priv. If the card is not
+ * capable, then the driver will just ignore the settings that
+ * it can't do. */
+ err = __orinoco_connect(wiphy, sme->channel, sme->bssid,
+ sme->ssid, sme->ssid_len);
+ if (err)
+ goto out;
+
+ switch (sme->auth_type) {
+ case NL80211_AUTHTYPE_OPEN_SYSTEM:
+ priv->wep_restrict = 0;
+ break;
+ case NL80211_AUTHTYPE_SHARED_KEY:
+ priv->wep_restrict = 1;
+ break;
+ /* Ignore all other settings */
+ default:
+ break;
+ }
+
+ switch (sme->crypto.cipher_group) {
+ case WLAN_CIPHER_SUITE_TKIP:
+ encode_alg = ORINOCO_ALG_TKIP;
+ break;
+
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ encode_alg = ORINOCO_ALG_WEP;
+ break;
+
+ default:
+ encode_alg = ORINOCO_ALG_NONE;
+ }
+
+ orinoco_set_encoding(priv, encode_alg);
+
+ /* What are we supposed to do with multiple AKM suites? */
+ if (sme->crypto.n_akm_suites > 0)
+ priv->key_mgmt = sme->crypto.akm_suites[0];
+
+ /* Finally, set WEP key */
+ if (encode_alg == ORINOCO_ALG_WEP) {
+ err = orinoco_set_key(priv, sme->key_idx, encode_alg,
+ &sme->key[0], sme->key_len, NULL, 0);
+ if (err)
+ goto out;
+
+ priv->tx_key = sme->key_idx;
+ }
+
+ err = orinoco_commit(priv);
+
+out:
+ orinoco_unlock(priv, &lock);
+
+ return err;
+}
+
+static int orinoco_disconnect(struct wiphy *wiphy, struct net_device *dev,
+ u16 reason_code)
+{
+ struct orinoco_private *priv = wiphy_priv(wiphy);
+ unsigned long lock;
+ u8 addr[ETH_ALEN];
+ int err;
+
+ if (orinoco_lock(priv, &lock) != 0)
+ return -EBUSY;
+
+ memset(priv->desired_bssid, 0, ETH_ALEN);
+ memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
+
+ err = orinoco_hw_get_current_bssid(priv, &addr[0]);
+
+ if (!err) {
+ err = orinoco_hw_disassociate(priv, &addr[0],
+ reason_code);
+ }
+
+ if (err)
+ err = orinoco_commit(priv);
+
+ orinoco_unlock(priv, &lock);
+
+ return err;
+}
+
const struct cfg80211_ops orinoco_cfg_ops = {
.change_virtual_intf = orinoco_change_vif,
.scan = orinoco_scan,
+ .connect = orinoco_connect,
+ .disconnect = orinoco_disconnect,
};
--
1.6.3.3
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
