From 0cb85f161ea332dc400d7e33071ca1f3dfafd730 Mon Sep 17 00:00:00 2001 From: Thomas Haller Date: Sun, 5 Feb 2017 23:18:08 +0100 Subject: [PATCH] device/wifi: drop messing with wpa-supplicant's support for MAC address randomization We no longer use wpa_supplicant for MAC address randomization. Instead, NetworkManager handles it on it's own. It is actually important that supplicant does not interfere when setting the MAC address of the device. The code was only in effect when supplicant has a PreassocMacAddr property. As this is a recent feature, the left-over code wasn't noticed until now. https://mail.gnome.org/archives/networkmanager-list/2017-February/msg00003.html Fixes: 767abfa69040c62ae1dc0989a77df8c5e0e489c1 --- src/supplicant/nm-supplicant-interface.c | 84 +----------------------- 1 file changed, 2 insertions(+), 82 deletions(-) diff --git a/src/supplicant/nm-supplicant-interface.c b/src/supplicant/nm-supplicant-interface.c index deaac77990..c913a6960c 100644 --- a/src/supplicant/nm-supplicant-interface.c +++ b/src/supplicant/nm-supplicant-interface.c @@ -67,7 +67,6 @@ typedef struct { gboolean has_credreq; /* Whether querying 802.1x credentials is supported */ NMSupplicantFeature fast_support; NMSupplicantFeature ap_support; /* Lightweight AP mode support */ - NMSupplicantFeature mac_randomization_support; guint32 max_scan_ssids; guint32 ready_count; @@ -519,25 +518,6 @@ nm_supplicant_interface_set_fast_support (NMSupplicantInterface *self, priv->fast_support = fast_support; } -static void -set_preassoc_scan_mac_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data) -{ - NMSupplicantInterface *self; - gs_unref_variant GVariant *variant = NULL; - gs_free_error GError *error = NULL; - - variant = _nm_dbus_proxy_call_finish (proxy, result, - G_VARIANT_TYPE ("()"), - &error); - if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) - return; - - self = NM_SUPPLICANT_INTERFACE (user_data); - if (error) - _LOGW ("failed to enable scan MAC address randomization (%s)", error->message); - iface_check_ready (self); -} - static void iface_introspect_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data) { @@ -562,24 +542,6 @@ iface_introspect_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data /* The ProbeRequest method only exists if AP mode has been enabled */ if (strstr (data, "ProbeRequest")) priv->ap_support = NM_SUPPLICANT_FEATURE_YES; - - if (strstr (data, "PreassocMacAddr")) { - priv->mac_randomization_support = NM_SUPPLICANT_FEATURE_YES; - - /* Turn on MAC randomization during scans by default */ - priv->ready_count++; - g_dbus_proxy_call (priv->iface_proxy, - DBUS_INTERFACE_PROPERTIES ".Set", - g_variant_new ("(ssv)", - WPAS_DBUS_IFACE_INTERFACE, - "PreassocMacAddr", - g_variant_new_string ("0")), - G_DBUS_CALL_FLAGS_NONE, - -1, - priv->init_cancellable, - (GAsyncReadyCallback) set_preassoc_scan_mac_cb, - self); - } } iface_check_ready (self); @@ -790,8 +752,7 @@ on_iface_proxy_acquired (GDBusProxy *proxy, GAsyncResult *result, gpointer user_ (GAsyncReadyCallback) iface_check_netreply_cb, self); - if (priv->ap_support == NM_SUPPLICANT_FEATURE_UNKNOWN || - priv->mac_randomization_support == NM_SUPPLICANT_FEATURE_UNKNOWN) { + if (priv->ap_support == NM_SUPPLICANT_FEATURE_UNKNOWN) { /* If the global supplicant capabilities property is not present, we can * fall back to checking whether the ProbeRequest method is supported. If * neither of these works we have no way of determining if AP mode is @@ -1225,33 +1186,6 @@ add_network (NMSupplicantInterface *self) self); } -static void -set_mac_randomization_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data) -{ - NMSupplicantInterface *self; - NMSupplicantInterfacePrivate *priv; - gs_unref_variant GVariant *reply = NULL; - gs_free_error GError *error = NULL; - - reply = g_dbus_proxy_call_finish (proxy, result, &error); - if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) - return; - - self = NM_SUPPLICANT_INTERFACE (user_data); - priv = NM_SUPPLICANT_INTERFACE_GET_PRIVATE (self); - - if (!reply) { - g_dbus_error_strip_remote_error (error); - _LOGW ("couldn't send MAC randomization mode to the supplicant interface: %s", - error->message); - emit_error_helper (self, error); - return; - } - - _LOGT ("config: set MAC randomization to 0"); - add_network (self); -} - static void set_ap_scan_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data) { @@ -1278,21 +1212,7 @@ set_ap_scan_cb (GDBusProxy *proxy, GAsyncResult *result, gpointer user_data) _LOGI ("config: set interface ap_scan to %d", nm_supplicant_config_get_ap_scan (priv->cfg)); - if (priv->mac_randomization_support == NM_SUPPLICANT_FEATURE_YES) { - /* Enable/disable association MAC address randomization */ - g_dbus_proxy_call (priv->iface_proxy, - DBUS_INTERFACE_PROPERTIES ".Set", - g_variant_new ("(ssv)", - WPAS_DBUS_IFACE_INTERFACE, - "MacAddr", - g_variant_new_string ("0")), - G_DBUS_CALL_FLAGS_NONE, - -1, - priv->assoc_cancellable, - (GAsyncReadyCallback) set_mac_randomization_cb, - self); - } else - add_network (self); + add_network (self); } gboolean