[PATCH] wireless/airo: add IWENCODEEXT and IWAUTH support

This patch adds IWENCODEEXT and IWAUTH support to the airo driver for
WEP and unencrypted operation.  No WPA though.  It allows the driver to
operate more willingly with wpa_supplicant and NetworkManager.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/airo.c

@@ -5756,11 +5756,13 @@ static int airo_set_wap(struct net_device *dev,
 	Cmd cmd;
 	Resp rsp;
 	APListRid APList_rid;
-	static const unsigned char bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
+	static const u8 any[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+	static const u8 off[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 	if (awrq->sa_family != ARPHRD_ETHER)
 		return -EINVAL;
-	else if (!memcmp(bcast, awrq->sa_data, ETH_ALEN)) {
+	else if (!memcmp(any, awrq->sa_data, ETH_ALEN) ||
+	         !memcmp(off, awrq->sa_data, ETH_ALEN)) {
 		memset(&cmd, 0, sizeof(cmd));
 		cmd.cmd=CMD_LOSE_SYNC;
 		if (down_interruptible(&local->sem))
@@ -6249,6 +6251,267 @@ static int airo_get_encode(struct net_device *dev,
 	return 0;
 }
 
+/*------------------------------------------------------------------*/
+/*
+ * Wireless Handler : set extended Encryption parameters
+ */
+static int airo_set_encodeext(struct net_device *dev,
+			   struct iw_request_info *info,
+			    union iwreq_data *wrqu,
+			    char *extra)
+{
+	struct airo_info *local = dev->priv;
+	struct iw_point *encoding = &wrqu->encoding;
+	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+	CapabilityRid cap_rid;		/* Card capability info */
+	int perm = ( encoding->flags & IW_ENCODE_TEMP ? 0 : 1 );
+	u16 currentAuthType = local->config.authType;
+	int idx, key_len, alg = ext->alg;	/* Check encryption mode */
+	wep_key_t key;
+
+	/* Is WEP supported ? */
+	readCapabilityRid(local, &cap_rid, 1);
+	/* Older firmware doesn't support this...
+	if(!(cap_rid.softCap & 2)) {
+		return -EOPNOTSUPP;
+	} */
+	readConfigRid(local, 1);
+
+	/* Determine and validate the key index */
+	idx = encoding->flags & IW_ENCODE_INDEX;
+	if (idx) {
+		if (idx < 1 || idx > ((cap_rid.softCap & 0x80) ? 4:1))
+			return -EINVAL;
+		idx--;
+	} else
+		idx = get_wep_key(local, 0xffff);
+
+	if (encoding->flags & IW_ENCODE_DISABLED)
+		alg = IW_ENCODE_ALG_NONE;
+
+	/* Just setting the transmit key? */
+	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
+		set_wep_key(local, idx, NULL, 0, perm, 1);
+	} else {
+		/* Set the requested key first */
+		memset(key.key, 0, MAX_KEY_SIZE);
+		switch (alg) {
+		case IW_ENCODE_ALG_NONE:
+			key.len = 0;
+			break;
+		case IW_ENCODE_ALG_WEP:
+			if (ext->key_len > MIN_KEY_SIZE) {
+				key.len = MAX_KEY_SIZE;
+			} else if (ext->key_len > 0) {
+				key.len = MIN_KEY_SIZE;
+			} else {
+				return -EINVAL;
+			}
+			key_len = min (ext->key_len, key.len);
+			memcpy(key.key, ext->key, key_len);
+			break;
+		default:
+			return -EINVAL;
+		}
+		/* Send the key to the card */
+		set_wep_key(local, idx, key.key, key.len, perm, 1);
+	}
+
+	/* Read the flags */
+	if(encoding->flags & IW_ENCODE_DISABLED)
+		local->config.authType = AUTH_OPEN;	// disable encryption
+	if(encoding->flags & IW_ENCODE_RESTRICTED)
+		local->config.authType = AUTH_SHAREDKEY;	// Only Both
+	if(encoding->flags & IW_ENCODE_OPEN)
+		local->config.authType = AUTH_ENCRYPT;	// Only Wep
+	/* Commit the changes to flags if needed */
+	if (local->config.authType != currentAuthType)
+		set_bit (FLAG_COMMIT, &local->flags);
+
+	return -EINPROGRESS;
+}
+
+
+/*------------------------------------------------------------------*/
+/*
+ * Wireless Handler : get extended Encryption parameters
+ */
+static int airo_get_encodeext(struct net_device *dev,
+			    struct iw_request_info *info,
+			    union iwreq_data *wrqu,
+			    char *extra)
+{
+	struct airo_info *local = dev->priv;
+	struct iw_point *encoding = &wrqu->encoding;
+	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+	CapabilityRid cap_rid;		/* Card capability info */
+	int idx, max_key_len;
+
+	/* Is it supported ? */
+	readCapabilityRid(local, &cap_rid, 1);
+	if(!(cap_rid.softCap & 2)) {
+		return -EOPNOTSUPP;
+	}
+	readConfigRid(local, 1);
+
+	max_key_len = encoding->length - sizeof(*ext);
+	if (max_key_len < 0)
+		return -EINVAL;
+
+	idx = encoding->flags & IW_ENCODE_INDEX;
+	if (idx) {
+		if (idx < 1 || idx > ((cap_rid.softCap & 0x80) ? 4:1))
+			return -EINVAL;
+		idx--;
+	} else
+		idx = get_wep_key(local, 0xffff);
+
+	encoding->flags = idx + 1;
+	memset(ext, 0, sizeof(*ext));
+
+	/* Check encryption mode */
+	switch(local->config.authType) {
+		case AUTH_ENCRYPT:
+			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
+			break;
+		case AUTH_SHAREDKEY:
+			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
+			break;
+		default:
+		case AUTH_OPEN:
+			encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
+			break;
+	}
+	/* We can't return the key, so set the proper flag and return zero */
+	encoding->flags |= IW_ENCODE_NOKEY;
+	memset(extra, 0, 16);
+	
+	/* Copy the key to the user buffer */
+	ext->key_len = get_wep_key(local, idx);
+	if (ext->key_len > 16) {
+		ext->key_len=0;
+	}
+
+	return 0;
+}
+
+
+/*------------------------------------------------------------------*/
+/*
+ * Wireless Handler : set extended authentication parameters
+ */
+static int airo_set_auth(struct net_device *dev,
+			       struct iw_request_info *info,
+			       union iwreq_data *wrqu, char *extra)
+{
+	struct airo_info *local = dev->priv;
+	struct iw_param *param = &wrqu->param;
+	u16 currentAuthType = local->config.authType;
+
+	switch (param->flags & IW_AUTH_INDEX) {
+	case IW_AUTH_WPA_VERSION:
+	case IW_AUTH_CIPHER_PAIRWISE:
+	case IW_AUTH_CIPHER_GROUP:
+	case IW_AUTH_KEY_MGMT:
+	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
+	case IW_AUTH_PRIVACY_INVOKED:
+		/*
+		 * airo does not use these parameters
+		 */
+		break;
+
+	case IW_AUTH_DROP_UNENCRYPTED:
+		if (param->value) {
+			/* Only change auth type if unencrypted */
+			if (currentAuthType == AUTH_OPEN)
+				local->config.authType = AUTH_ENCRYPT;
+		} else {
+			local->config.authType = AUTH_OPEN;
+		}
+
+		/* Commit the changes to flags if needed */
+		if (local->config.authType != currentAuthType)
+			set_bit (FLAG_COMMIT, &local->flags);
+		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;
+			} else
+				return -EINVAL;
+			break;
+
+			/* Commit the changes to flags if needed */
+			if (local->config.authType != currentAuthType)
+				set_bit (FLAG_COMMIT, &local->flags);
+		}
+
+	case IW_AUTH_WPA_ENABLED:
+		/* Silently accept disable of WPA */
+		if (param->value > 0)
+			return -EOPNOTSUPP;
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+	return -EINPROGRESS;
+}
+
+
+/*------------------------------------------------------------------*/
+/*
+ * Wireless Handler : get extended authentication parameters
+ */
+static int airo_get_auth(struct net_device *dev,
+			       struct iw_request_info *info,
+			       union iwreq_data *wrqu, char *extra)
+{
+	struct airo_info *local = dev->priv;
+	struct iw_param *param = &wrqu->param;
+	u16 currentAuthType = local->config.authType;
+
+	switch (param->flags & IW_AUTH_INDEX) {
+	case IW_AUTH_DROP_UNENCRYPTED:
+		switch (currentAuthType) {
+		case AUTH_SHAREDKEY:
+		case AUTH_ENCRYPT:
+			param->value = 1;
+			break;
+		default:
+			param->value = 0;
+			break;
+		}
+		break;
+
+	case IW_AUTH_80211_AUTH_ALG:
+		switch (currentAuthType) {
+		case AUTH_SHAREDKEY:
+			param->value = IW_AUTH_ALG_SHARED_KEY;
+			break;
+		case AUTH_ENCRYPT:
+		default:
+			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
+			break;
+		}
+		break;
+
+	case IW_AUTH_WPA_ENABLED:
+		param->value = 0;
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+
 /*------------------------------------------------------------------*/
 /*
  * Wireless Handler : set Tx-Power
@@ -7005,6 +7268,15 @@ static const iw_handler		airo_handler[] =
 	(iw_handler) airo_get_encode,		/* SIOCGIWENCODE */
 	(iw_handler) airo_set_power,		/* SIOCSIWPOWER */
 	(iw_handler) airo_get_power,		/* SIOCGIWPOWER */
+	(iw_handler) NULL,			/* -- hole -- */
+	(iw_handler) NULL,			/* -- hole -- */
+	(iw_handler) NULL,			/* SIOCSIWGENIE */
+	(iw_handler) NULL,			/* SIOCGIWGENIE */
+	(iw_handler) airo_set_auth,		/* SIOCSIWAUTH */
+	(iw_handler) airo_get_auth,		/* SIOCGIWAUTH */
+	(iw_handler) airo_set_encodeext,	/* SIOCSIWENCODEEXT */
+	(iw_handler) airo_get_encodeext,	/* SIOCGIWENCODEEXT */
+	(iw_handler) NULL,			/* SIOCSIWPMKSA */
 };
 
 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.