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bluez: ensure that address of NMBluezDevice cannot be reset

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Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller 2013-09-25 20:04:24 +02:00
parent 050cf2dbae
commit 07cc990981
1 changed files with 44 additions and 13 deletions
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57
src/bluez-manager/nm-bluez-device.c
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@ -320,6 +320,10 @@ connection_compatible (NMBluezDevice *self, NMConnection *connection)
if (!s_bt)
return FALSE;
if (!priv->address) {
/* unless address is set, bin_address is not initialized. */
return FALSE;
}
bdaddr = nm_setting_bluetooth_get_bdaddr (s_bt);
if (!bdaddr || bdaddr->len != ETH_ALEN)
return FALSE;
@ -609,6 +613,44 @@ _set_property_capabilities (NMBluezDevice *self, const char **uuids, gboolean no
}
}
/**
* priv->address can only be set one to a certain (non NULL) value. Every later attempt
* to reset it to another value will be ignored and a warning will be logged.
*
* When setting the address for the first time, we also set bin_address.
**/
static void
_set_property_address (NMBluezDevice *self, const char *addr)
{
struct ether_addr *tmp;
NMBluezDevicePrivate *priv = NM_BLUEZ_DEVICE_GET_PRIVATE (self);
if (g_strcmp0 (priv->address, addr) == 0)
return;
if (!addr) {
nm_log_warn (LOGD_BT, "[%s] cannot reset address from '%s' to NULL", priv->path, priv->address);
return;
}
if (priv->address != NULL) {
nm_log_warn (LOGD_BT, "[%s] cannot reset address from '%s' to '%s'", priv->path, priv->address, addr);
return;
}
tmp = ether_aton (addr);
if (!tmp) {
if (priv->address)
nm_log_warn (LOGD_BT, "[%s] cannot reset address from '%s' to '%s' (invalid value)", priv->path, priv->address, addr);
else
nm_log_warn (LOGD_BT, "[%s] cannot reset address from NULL to '%s' (invalid value)", priv->path, addr);
return;
}
memcpy (priv->bin_address, tmp->ether_addr_octet, ETH_ALEN);
priv->address = g_strdup (addr);
return;
}
#if ! WITH_BLUEZ4
static void
adapter_properties_changed (GDBusProxy *proxy5,
@ -766,17 +808,11 @@ query_properties (NMBluezDevice *self)
NMBluezDevicePrivate *priv = NM_BLUEZ_DEVICE_GET_PRIVATE (self);
GVariant *v;
const char **uuids;
struct ether_addr *tmp;
v = g_dbus_proxy_get_cached_property (priv->proxy5, "Address");
priv->address = v ? g_variant_dup_string (v, NULL) : NULL;
_set_property_address (self, v ? g_variant_get_string (v, NULL) : NULL);
if (v)
g_variant_unref (v);
if (priv->address) {
tmp = ether_aton (priv->address);
g_assert (tmp);
memcpy (priv->bin_address, tmp->ether_addr_octet, ETH_ALEN);
}
v = g_dbus_proxy_get_cached_property (priv->proxy5, "Name");
priv->name = v ? g_variant_dup_string (v, NULL) : NULL;
@ -835,12 +871,7 @@ get_properties_cb (DBusGProxy *proxy4, DBusGProxyCall *call, gpointer user_data)
}
value = g_hash_table_lookup (properties, "Address");
priv->address = value ? g_value_dup_string (value) : NULL;
if (priv->address) {
tmp = ether_aton (priv->address);
g_assert (tmp);
memcpy (priv->bin_address, tmp->ether_addr_octet, ETH_ALEN);
}
_set_property_address (self, value ? g_value_get_string (value) : NULL);
value = g_hash_table_lookup (properties, "Name");
priv->name = value ? g_value_dup_string (value) : NULL;