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device/wifi: drop messing with wpa-supplicant's support for MAC address randomization

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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: 767abfa690
This commit is contained in:
Thomas Haller 2017-02-05 23:18:08 +01:00
parent 0683ad5db2
commit 0cb85f161e
1 changed files with 2 additions and 82 deletions
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84
src/supplicant/nm-supplicant-interface.c
View file

@ -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