bolt-device.c 28.4 KB
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/*
 * Copyright © 2017 Red Hat, Inc
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *       Christian J. Kellner <christian@kellner.me>
 */

#include "config.h"

#include "bolt-device.h"
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#include "bolt-enums.h"
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#include "bolt-error.h"
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#include "bolt-io.h"
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#include "bolt-log.h"
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#include "bolt-manager.h"
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#include "bolt-names.h"
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#include "bolt-store.h"
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#include "bolt-str.h"
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#include <dirent.h>
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#include <libudev.h>

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/* dbus property setter */
static gboolean handle_set_label (BoltExported *obj,
                                  const char   *name,
                                  const GValue *value,
                                  GError      **error);

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/* dbus method calls */
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static gboolean    handle_authorize (BoltExported          *object,
                                     GVariant              *params,
                                     GDBusMethodInvocation *invocation);
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struct _BoltDevice
{
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  BoltExported object;
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  /* device props */
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  char          *dbus_path;
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  char          *uid;
  char          *name;
  char          *vendor;
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  BoltDeviceType type;
  BoltStatus     status;
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  /* when device is attached */
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  char        *syspath;
  BoltSecurity security;
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  char        *parent;
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  guint64      conntime;

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  /* when device is stored */
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  BoltStore   *store;
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  BoltPolicy   policy;
  BoltKeyState key;
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  guint64      storetime;
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  char        *label;
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};


enum {
  PROP_0,

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  PROP_STORE,

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  /* exported properties start here, */
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  PROP_UID,
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  PROP_NAME,
  PROP_VENDOR,
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  PROP_TYPE,
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  PROP_STATUS,
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  PROP_PARENT,
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  PROP_SYSFS,
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  PROP_SECURITY,
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  PROP_CONNTIME,
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  PROP_STORED,
  PROP_POLICY,
  PROP_HAVE_KEY,
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  PROP_STORETIME,
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  PROP_LABEL,
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  PROP_LAST,
  PROP_EXPORTED = PROP_UID
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};

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static GParamSpec *props[PROP_LAST] = {NULL, };
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enum {
  SIGNAL_STATUS_CHANGED,
  SIGNAL_LAST
};

static guint signals[SIGNAL_LAST] = {0};

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G_DEFINE_TYPE (BoltDevice,
               bolt_device,
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               BOLT_TYPE_EXPORTED)
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static void
bolt_device_finalize (GObject *object)
{
  BoltDevice *dev = BOLT_DEVICE (object);

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  g_clear_object (&dev->store);

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  g_free (dev->dbus_path);

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  g_free (dev->uid);
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  g_free (dev->name);
  g_free (dev->vendor);
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  g_free (dev->parent);
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  g_free (dev->syspath);
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  g_free (dev->label);
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  G_OBJECT_CLASS (bolt_device_parent_class)->finalize (object);
}

static void
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bolt_device_init (BoltDevice *dev)
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{
}

static void
bolt_device_get_property (GObject    *object,
                          guint       prop_id,
                          GValue     *value,
                          GParamSpec *pspec)
{
  BoltDevice *dev = BOLT_DEVICE (object);

  switch (prop_id)
    {
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    case PROP_STORE:
      g_value_set_object (value, dev->store);
      break;

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    case PROP_UID:
      g_value_set_string (value, dev->uid);
      break;

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    case PROP_NAME:
      g_value_set_string (value, dev->name);
      break;

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    case PROP_TYPE:
      g_value_set_uint (value, dev->type);
      break;

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    case PROP_VENDOR:
      g_value_set_string (value, dev->vendor);
      break;

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    case PROP_STATUS:
      g_value_set_uint (value, dev->status);
      break;

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    case PROP_PARENT:
      g_value_set_string (value, dev->parent);
      break;

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    case PROP_SYSFS:
      g_value_set_string (value, dev->syspath);
      break;

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    case PROP_SECURITY:
      g_value_set_uint (value, dev->security);
      break;

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    case PROP_CONNTIME:
      g_value_set_uint64 (value, dev->conntime);
      break;

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    case PROP_STORED:
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      g_value_set_boolean (value, dev->store != NULL);
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      break;

    case PROP_POLICY:
      g_value_set_uint (value, dev->policy);
      break;

    case PROP_HAVE_KEY:
      g_value_set_uint (value, dev->key);
      break;

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    case PROP_STORETIME:
      g_value_set_uint64 (value, dev->storetime);
      break;

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    case PROP_LABEL:
      g_value_set_string (value, dev->label);
      break;

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    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
    }
}

static void
bolt_device_set_property (GObject      *object,
                          guint         prop_id,
                          const GValue *value,
                          GParamSpec   *pspec)
{
  BoltDevice *dev = BOLT_DEVICE (object);

  switch (prop_id)
    {
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    case PROP_STORE:
      dev->store = g_value_dup_object (value);
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      g_object_notify_by_pspec (object, props[PROP_STORED]);
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      break;

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    case PROP_UID:
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      g_return_if_fail (dev->uid == NULL);
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      dev->uid = g_value_dup_string (value);
      break;

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    case PROP_NAME:
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      g_clear_pointer (&dev->name, g_free);
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      dev->name = g_value_dup_string (value);
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      break;

    case PROP_VENDOR:
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      g_clear_pointer (&dev->vendor, g_free);
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      dev->vendor = g_value_dup_string (value);
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      break;

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    case PROP_TYPE:
      dev->type = g_value_get_uint (value);
      break;

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    case PROP_STATUS:
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      {
        BoltStatus old = dev->status;
        BoltStatus now = g_value_get_uint (value);
        if (old == now)
          break;

        dev->status = now;
        g_signal_emit (dev,
                       signals[SIGNAL_STATUS_CHANGED],
                       0,
                       old);
        break;
      }
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    case PROP_PARENT:
      g_clear_pointer (&dev->parent, g_free);
      dev->parent = g_value_dup_string (value);
      break;

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    case PROP_SYSFS:
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      g_clear_pointer (&dev->syspath, g_free);
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      dev->syspath = g_value_dup_string (value);
      break;
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    case PROP_SECURITY:
      dev->security = g_value_get_uint (value);
      break;
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    case PROP_CONNTIME:
      dev->conntime = g_value_get_uint64 (value);
      break;

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    case PROP_POLICY:
      dev->policy = g_value_get_uint (value);
      break;

    case PROP_HAVE_KEY:
      dev->key = g_value_get_uint (value);
      break;

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    case PROP_STORETIME:
      dev->storetime = g_value_get_uint64 (value);
      break;

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    case PROP_LABEL:
      g_clear_pointer (&dev->label, g_free);
      dev->label = g_value_dup_string (value);
      break;

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    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
    }
}


static void
bolt_device_class_init (BoltDeviceClass *klass)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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  BoltExportedClass *exported_class = BOLT_EXPORTED_CLASS (klass);
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  gobject_class->finalize = bolt_device_finalize;

  gobject_class->get_property = bolt_device_get_property;
  gobject_class->set_property = bolt_device_set_property;

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  props[PROP_STORE] =
    g_param_spec_object ("store",
                         NULL, NULL,
                         BOLT_TYPE_STORE,
                         G_PARAM_READWRITE |
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                         G_PARAM_STATIC_STRINGS);
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  props[PROP_UID] =
    g_param_spec_string ("uid",
                         "Uid", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
                         G_PARAM_STATIC_STRINGS);
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  props[PROP_NAME] =
    g_param_spec_string ("name",
                         "Name", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
                         G_PARAM_STATIC_STRINGS);
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  props[PROP_VENDOR] =
    g_param_spec_string ("vendor",
                         "Vendor", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
                         G_PARAM_STATIC_STRINGS);

  props[PROP_TYPE] =
    g_param_spec_uint ("type",
                       "Type", NULL,
                       BOLT_DEVICE_HOST,
                       BOLT_DEVICE_PERIPHERAL,
                       BOLT_DEVICE_PERIPHERAL,
                       G_PARAM_READWRITE |
                       G_PARAM_CONSTRUCT_ONLY |
                       G_PARAM_STATIC_STRINGS);

  props[PROP_STATUS] =
    g_param_spec_uint ("status",
                       "Status", NULL,
                       0,
                       BOLT_STATUS_LAST,
                       BOLT_STATUS_DISCONNECTED,
                       G_PARAM_READWRITE |
                       G_PARAM_STATIC_STRINGS);

  props[PROP_PARENT] =
    g_param_spec_string ("parent",
                         "Parent", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_STATIC_STRINGS);
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  props[PROP_SYSFS] =
    g_param_spec_string ("sysfs-path",
                         "SysfsPath", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_STATIC_STRINGS);
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  props[PROP_SECURITY] =
    g_param_spec_uint ("security",
                       "Security", NULL,
                       0,
                       BOLT_SECURITY_LAST,
                       BOLT_SECURITY_NONE,
                       G_PARAM_READWRITE |
                       G_PARAM_STATIC_STRINGS);

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  props[PROP_CONNTIME] =
    g_param_spec_uint64 ("conntime",
                         "ConnectTime", NULL,
                         0, G_MAXUINT64, 0,
                         G_PARAM_READWRITE |
                         G_PARAM_STATIC_STRINGS);

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  props[PROP_STORED] =
    g_param_spec_boolean ("stored",
                          "Stored", NULL,
                          FALSE,
                          G_PARAM_READWRITE |
                          G_PARAM_STATIC_STRINGS);

  props[PROP_POLICY] =
    g_param_spec_uint ("policy",
                       "Policy", NULL,
                       0,
                       BOLT_POLICY_LAST,
                       BOLT_POLICY_DEFAULT,
                       G_PARAM_READWRITE |
                       G_PARAM_STATIC_STRINGS);

  props[PROP_HAVE_KEY] =
    g_param_spec_uint ("key",
                       "Key", NULL,
                       0,
                       BOLT_KEY_NEW,
                       BOLT_KEY_MISSING,
                       G_PARAM_READWRITE |
                       G_PARAM_STATIC_STRINGS);
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  props[PROP_STORETIME] =
    g_param_spec_uint64 ("storetime",
                         "StoreTime", NULL,
                         0, G_MAXUINT64, 0,
                         G_PARAM_READWRITE |
                         G_PARAM_STATIC_STRINGS);

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  props[PROP_LABEL] =
    g_param_spec_string ("label",
                         "Label", NULL,
                         NULL,
                         G_PARAM_READWRITE |
                         G_PARAM_STATIC_STRINGS);

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  g_object_class_install_properties (gobject_class,
                                     PROP_LAST,
                                     props);
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  signals[SIGNAL_STATUS_CHANGED] =
    g_signal_new ("status-changed",
                  G_TYPE_FROM_CLASS (gobject_class),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  NULL,
                  G_TYPE_NONE,
                  1, BOLT_TYPE_STATUS);

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  bolt_exported_class_set_interface_info (exported_class,
                                          BOLT_DBUS_DEVICE_INTERFACE,
                                          "/boltd/org.freedesktop.bolt.xml");

  bolt_exported_class_export_properties (exported_class,
                                         PROP_EXPORTED,
                                         PROP_LAST,
                                         props);

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  bolt_exported_class_property_setter (exported_class,
                                       props[PROP_LABEL],
                                       handle_set_label);

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  bolt_exported_class_export_method (exported_class,
                                     "Authorize",
                                     handle_authorize);

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}
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/* internal methods */

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static const char *
read_sysattr_name (struct udev_device *udev, const char *attr, GError **error)
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{
  g_autofree char *s = NULL;
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  const char *v;
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  s = g_strdup_printf ("%s_name", attr);
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  v = udev_device_get_sysattr_value (udev, s);

  if (v != NULL)
    return v;

  v = udev_device_get_sysattr_value (udev, attr);
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  if (v == NULL)
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    g_set_error (error,
                 BOLT_ERROR, BOLT_ERROR_UDEV,
                 "failed to get sysfs attr: %s", attr);
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  return v;
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}

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static gint
read_sysfs_attr_int (struct udev_device *device, const char *attr)
{
  const char *str;
  char *end;
  gint64 val;

  str = udev_device_get_sysattr_value (device, attr);

  if (str == NULL)
    return 0;

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  val = g_ascii_strtoll (str, &end, 0);
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  if (str == end)
    return 0;

  if (val > G_MAXINT || val < G_MININT)
    {
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      bolt_warn ("value read from sysfs outside of gint's range.");
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      val = 0;
    }

  return (gint) val;
}

static gboolean
string_nonzero (const char *str)
{
  return str != NULL && str[0] != '\0';
}

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static struct udev_device *
bolt_sysfs_get_parent (struct udev_device *udev,
                       GError            **error)
{
  struct udev_device * parent = udev_device_get_parent (udev);

  if (parent == NULL)
    g_set_error (error, BOLT_ERROR, BOLT_ERROR_UDEV,
                 "could not get parent udev device");

  return parent;
}

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static const char *
bolt_sysfs_get_parent_uid (struct udev_device *udev)
{
  struct udev_device *parent;
  const char *uid = NULL;

  parent = udev_device_get_parent (udev);
  if (parent)
    uid = udev_device_get_sysattr_value (parent, "unique_id");
  return uid;
}

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typedef enum BoltStatTime {
  BOLT_ST_ATIME,
  BOLT_ST_CTIME,
  BOLT_ST_MTIME
} BoltStatTime;

static gint64
bolt_sysfs_device_get_time (struct udev_device *udev,
                            BoltStatTime        st)
{
  const char *path;
  struct stat sb;
  gint64 ms;
  int r;

  path = udev_device_get_syspath (udev);

  if (path == NULL)
    return 0;

  r = lstat (path, &sb);

  if (r == -1)
    return 0;

  switch (st)
    {
    case BOLT_ST_CTIME:
      ms = (gint64) sb.st_ctim.tv_sec;
      break;

    case BOLT_ST_ATIME:
      ms = (gint64) sb.st_atim.tv_sec;
      break;

    case BOLT_ST_MTIME:
      ms = (gint64) sb.st_mtim.tv_sec;
      break;

    default:
      bolt_warn_enum_unhandled (BoltStatTime, st);
      return 0;
    }

  if (ms < 0)
    ms = 0;

  return ms;
}

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static BoltStatus
bolt_status_from_udev (struct udev_device *udev)
{
  gint authorized;
  const char *key;
  gboolean have_key;

  authorized = read_sysfs_attr_int (udev, "authorized");

  if (authorized == 2)
    return BOLT_STATUS_AUTHORIZED_SECURE;

  key = udev_device_get_sysattr_value (udev, "key");
  have_key = string_nonzero (key);

  if (authorized == 1)
    {
      if (have_key)
        return BOLT_STATUS_AUTHORIZED_NEWKEY;
      else
        return BOLT_STATUS_AUTHORIZED;
    }
  else if (authorized == 0 && have_key)
    {
      return BOLT_STATUS_AUTH_ERROR;
    }

  return BOLT_STATUS_CONNECTED;
}

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static gboolean
bolt_sysfs_device_is_domain (struct udev_device *udev)
{
  const char *devtype = udev_device_get_devtype (udev);

  return bolt_streq (devtype, "thunderbolt_domain");
}
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static struct udev_device *
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bolt_sysfs_domain_for_device (struct udev_device *udev)
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{
  struct udev_device *parent;
  gboolean found;

  found = FALSE;
  parent = udev;
  do
    {
      parent = udev_device_get_parent (parent);
      if (!parent)
        break;

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      found = bolt_sysfs_device_is_domain (parent);
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    }
  while (!found);

  return found ? parent : NULL;
}

static BoltSecurity
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bolt_sysfs_security_for_device (struct udev_device *udev)
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{
  struct udev_device *parent = NULL;
  const char *v;
  BoltSecurity s;

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  parent = bolt_sysfs_domain_for_device (udev);
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  if (parent == NULL)
    {
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      bolt_warn ("failed to determine domain device");
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      return BOLT_SECURITY_NONE;
    }

  v = udev_device_get_sysattr_value (parent, "security");
  s = bolt_security_from_string (v);

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  if (!bolt_security_validate (s))
    {
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      bolt_warn ("invalid security: %s", v);
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      s = BOLT_SECURITY_NONE;
    }

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  return s;
}

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static const char *
cleanup_name (const char *name,
              const char *vendor,
              GError    **error)
{
  g_return_val_if_fail (vendor != NULL, NULL);
  g_return_val_if_fail (name != NULL, NULL);

  /* some devices have the vendor name as a prefix */
  if (!g_str_has_prefix (name, vendor))
    return name;

  name += strlen (vendor);

  while (g_ascii_isspace (*name))
    name++;

  if (*name == '\0')
    {
      g_set_error_literal (error,
                           BOLT_ERROR, BOLT_ERROR_UDEV,
                           "device has empty name after cleanup");
      return NULL;
    }

  return name;
}

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/*  device authorization */

typedef struct
{
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  BoltAuth *auth;
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  /* the outer callback  */
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  GAsyncReadyCallback callback;
  gpointer            user_data;
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} AuthData;

static void
auth_data_free (gpointer data)
{
  AuthData *auth = data;

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  g_clear_object (&auth->auth);
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  g_slice_free (AuthData, auth);
}

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static gboolean
authorize_device_internal (BoltDevice *dev,
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                           BoltAuth   *auth,
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                           GError    **error)
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{
  g_autoptr(DIR) devdir = NULL;
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  BoltKey *key;
  BoltSecurity level;
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  gboolean ok;

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  key = bolt_auth_get_key (auth);
  level = bolt_auth_get_level (auth);

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  devdir = bolt_opendir (dev->syspath, error);
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  if (devdir == NULL)
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    return FALSE;
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  ok = bolt_verify_uid (dirfd (devdir), dev->uid, error);
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  if (!ok)
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    return FALSE;

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  if (key)
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    {
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      int keyfd;

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      bolt_debug (LOG_DEV (dev), "writing key");
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      keyfd = bolt_openat (dirfd (devdir), "key", O_WRONLY | O_CLOEXEC, error);
      if (keyfd < 0)
        return FALSE;

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      ok = bolt_key_write_to (key, keyfd, &level, error);
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      close (keyfd);
      if (!ok)
        return FALSE;
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    }

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  bolt_debug (LOG_DEV (dev), "writing authorization");
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  ok = bolt_write_char_at (dirfd (devdir),
                           "authorized",
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                           level,
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                           error);
  return ok;
}

static void
authorize_in_thread (GTask        *task,
                     gpointer      source,
                     gpointer      context,
                     GCancellable *cancellable)
{
  g_autoptr(GError) error = NULL;
  BoltDevice *dev = source;
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  AuthData *auth_data = context;
  BoltAuth *auth = auth_data->auth;
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  gboolean ok;

  ok = authorize_device_internal (dev, auth, &error);
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  if (!ok)
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    g_task_return_new_error (task, BOLT_ERROR, BOLT_ERROR_FAILED,
                             "failed to authorize device: %s",
                             error->message);
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  else
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    g_task_return_boolean (task, TRUE);
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}

static void
authorize_thread_done (GObject      *object,
                       GAsyncResult *res,
                       gpointer      user_data)
{
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  g_autoptr(GError) error = NULL;
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  BoltDevice *dev = BOLT_DEVICE (object);
  GTask *task = G_TASK (res);
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  BoltStatus status;
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  AuthData *auth_data;
  BoltAuth *auth;
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  gboolean ok;

817 818 819
  auth_data = g_task_get_task_data (task);
  auth = auth_data->auth;

820 821
  ok = g_task_propagate_boolean (task, &error);

822
  if (!ok)
823 824 825 826
    bolt_auth_return_error (auth, &error);

  status = bolt_auth_to_status (auth);
  g_object_set (dev, "status", status, NULL);
827

828 829 830 831
  if (auth_data->callback)
    auth_data->callback (G_OBJECT (dev),
                         G_ASYNC_RESULT (auth),
                         auth_data->user_data);
832 833
}

834 835 836 837 838
void
bolt_device_authorize (BoltDevice         *dev,
                       BoltAuth           *auth,
                       GAsyncReadyCallback callback,
                       gpointer            user_data)
839 840 841 842
{
  AuthData *auth_data;
  GTask *task;

843 844
  g_object_set (auth, "device", dev, NULL);

845 846 847
  if (dev->status != BOLT_STATUS_CONNECTED &&
      dev->status != BOLT_STATUS_AUTH_ERROR)
    {
848 849
      bolt_auth_return_new_error (auth, BOLT_ERROR, BOLT_ERROR_FAILED,
                                  "wrong device state: %u", dev->status);
850

851 852
      if (callback)
        callback (G_OBJECT (dev), G_ASYNC_RESULT (auth), user_data);
853

854
      return;
855 856 857
    }

  task = g_task_new (dev, NULL, authorize_thread_done, NULL);
858 859 860
  auth_data = g_slice_new (AuthData);
  auth_data->callback = callback;
  auth_data->user_data = user_data;
861
  auth_data->auth = g_object_ref (auth);
862 863
  g_task_set_task_data (task, auth_data, auth_data_free);

864
  g_object_set (dev, "status", BOLT_STATUS_AUTHORIZING, NULL);
865 866 867 868 869

  g_task_run_in_thread (task, authorize_in_thread);
  g_object_unref (task);
}

870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920
/* dbus property setter */

static gboolean
handle_set_label (BoltExported *obj,
                  const char   *name,
                  const GValue *value,
                  GError      **error)
{
  g_autofree char *nick = NULL;
  g_autofree char *old = NULL;
  BoltDevice *dev = BOLT_DEVICE (obj);
  const char *str = g_value_get_string (value);
  gboolean ok;

  nick = bolt_strdup_validate (str);

  if (nick == NULL)
    {
      g_set_error_literal (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS,
                           "string is invalid");
      return FALSE;
    }
  else if (strlen (nick) > 255)
    {
      g_set_error_literal (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS,
                           "string is too long");
      return FALSE;
    }

  if (dev->store == NULL)
    {
      g_set_error_literal (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS,
                           "device is not stored");
      return FALSE;
    }

  old = dev->label;
  dev->label = g_steal_pointer (&nick);

  ok = bolt_store_put_device (dev->store, dev, dev->policy, NULL, error);

  if (!ok)
    {
      bolt_warn_err (*error, LOG_DEV (dev), "failed to store device");

      nick = dev->label;
      dev->label = g_steal_pointer (&old);
    }

  return ok;
}
921 922 923 924

/* dbus methods */

static void
925 926 927
handle_authorize_done (GObject      *device,
                       GAsyncResult *res,
                       gpointer      user_data)
928
{
929 930 931 932 933 934 935
  GDBusMethodInvocation *inv;
  GError *error = NULL;
  BoltAuth *auth;
  gboolean ok;

  inv  = user_data;
  auth = BOLT_AUTH (res);
936

937
  ok = bolt_auth_check (auth, &error);
938
  if (ok)
939
    g_dbus_method_invocation_return_value (inv, g_variant_new ("()"));
940
  else
941
    g_dbus_method_invocation_take_error (inv, error);
942 943 944
}

static gboolean
945 946 947
handle_authorize (BoltExported          *object,
                  GVariant              *params,
                  GDBusMethodInvocation *inv)
948 949 950
{
  BoltDevice *dev = BOLT_DEVICE (object);
  GError *error = NULL;
951 952 953
  BoltAuth *auth;
  BoltSecurity level;
  BoltKey *key;
954

955 956
  level = dev->security;
  key = NULL;
957

958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973
  if (level == BOLT_SECURITY_SECURE)
    {
      if (dev->key)
        key = bolt_store_get_key (dev->store, dev->uid, &error);
      else
        level = BOLT_SECURITY_USER;
    }

  if (level == BOLT_SECURITY_SECURE && key == NULL)
    {
      g_dbus_method_invocation_take_error (inv, error);
      return TRUE;
    }

  auth = bolt_auth_new (dev, level, key);
  bolt_device_authorize (dev, auth, handle_authorize_done, inv);
974 975 976 977

  return TRUE;
}

978 979 980
/* public methods */

BoltDevice *
981
bolt_device_new_for_udev (struct udev_device *udev,
982 983
                          GError            **error)
{
984
  struct udev_device *parent_dev;
985 986 987 988
  const char *uid;
  const char *name;
  const char *vendor;
  const char *syspath;
989
  const char *parent;
990
  BoltDeviceType type;
991
  BoltDevice *dev;
992
  guint64 ct;
993

994 995 996 997 998 999 1000
  uid = udev_device_get_sysattr_value (udev, "unique_id");
  if (udev == NULL)
    {
      g_set_error (error, BOLT_ERROR, BOLT_ERROR_UDEV,
                   "could not get unique_id for udev");
      return NULL;
    }
1001

1002 1003
  syspath = udev_device_get_syspath (udev);
  g_return_val_if_fail (syspath != NULL, NULL);
1004

1005
  name = read_sysattr_name (udev, "device", error);
1006 1007 1008
  if (name == NULL)
    return NULL;

1009
  vendor = read_sysattr_name (udev, "vendor", error);
1010 1011
  if (vendor == NULL)
    return NULL;
1012

1013 1014 1015 1016
  name = cleanup_name (name, vendor, error);
  if (name == NULL)
    return NULL;

1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
  parent_dev = bolt_sysfs_get_parent (udev, error);
  if (parent_dev == NULL)
    return NULL;

  if (bolt_sysfs_device_is_domain (parent_dev))
    {
      parent = NULL;
      type = BOLT_DEVICE_HOST;
    }
  else
    {
      parent = udev_device_get_sysattr_value (parent_dev, "unique_id");
      type = BOLT_DEVICE_PERIPHERAL;
    }

1032 1033
  ct = (guint64) bolt_sysfs_device_get_time (udev, BOLT_ST_CTIME);

1034
  parent = bolt_sysfs_get_parent_uid (udev);
1035
  dev = g_object_new (BOLT_TYPE_DEVICE,
1036 1037 1038
                      "uid", uid,
                      "name", name,
                      "vendor", vendor,
1039
                      "type", type,
1040
                      "sysfs-path", syspath,
1041
                      "parent", parent,
1042
                      "conntime", ct,
1043 1044
                      NULL);

1045
  dev->status = bolt_status_from_udev (udev);
1046
  dev->security = bolt_sysfs_security_for_device (udev);
1047

1048 1049 1050
  return dev;
}

1051
const char *
1052 1053 1054 1055
bolt_device_export (BoltDevice      *device,
                    GDBusConnection *connection,
                    GError         **error)
{
1056
  const char *path;
1057
  gboolean ok;
1058 1059

  g_return_val_if_fail (BOLT_IS_DEVICE (device), FALSE);
1060

1061
  path = bolt_device_get_object_path (device);
1062

1063 1064 1065 1066 1067
  ok = bolt_exported_export (BOLT_EXPORTED (device),
                             connection,
                             path,
                             error);

1068
  return ok ? path : NULL;
1069 1070 1071 1072 1073
}

void
bolt_device_unexport (BoltDevice *device)
{
1074
  bolt_exported_unexport (BOLT_EXPORTED (device));
1075
}
1076

1077 1078 1079 1080 1081 1082

BoltStatus
bolt_device_connected (BoltDevice         *dev,
                       struct udev_device *udev)
{
  const char *syspath;
1083
  const char *parent;
1084 1085
  BoltSecurity security;
  BoltStatus status;
1086
  guint64 ct;
1087 1088 1089

  syspath = udev_device_get_syspath (udev);
  status = bolt_status_from_udev (udev);
1090
  security = bolt_sysfs_security_for_device (udev);
1091
  parent = bolt_sysfs_get_parent_uid (udev);
1092

1093 1094
  ct = (guint64) bolt_sysfs_device_get_time (udev, BOLT_ST_CTIME);

1095
  g_object_set (G_OBJECT (dev),
1096
                "parent", parent,
1097 1098 1099
                "sysfs-path", syspath,
                "security", security,
                "status", status,
1100
                "conntime", ct,
1101 1102
                NULL);

1103
  bolt_info (LOG_DEV (dev), "parent is %s", dev->parent);
1104

1105 1106 1107 1108 1109 1110 1111
  return status;
}

BoltStatus
bolt_device_disconnected (BoltDevice *dev)
{
  g_object_set (G_OBJECT (dev),
1112
                "parent", NULL,
1113 1114 1115
                "sysfs-path", NULL,
                "security", BOLT_SECURITY_NONE,
                "status", BOLT_STATUS_DISCONNECTED,
1116
                "conntime", 0,
1117 1118
                NULL);

1119 1120 1121 1122 1123
  /* check if we have a new key for the device, and
   * if so, change its state to KEY_HAVE, because
   * now it is not new anymore.
   */
  if (dev->key == BOLT_KEY_NEW)
1124
    g_object_set (G_OBJECT (dev), "key", BOLT_KEY_HAVE, NULL);