bolt-device.c 29.6 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 "bolt-time.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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  guint64      authtime;
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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_AUTHTIME,
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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_AUTHTIME:
      g_value_set_uint64 (value, dev->authtime);
      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_AUTHTIME:
      dev->authtime = 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_AUTHTIME] =
    g_param_spec_uint64 ("authtime",
                         "AuthorizeTime", 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);
818
  else
819
    g_task_return_boolean (task, TRUE);
820 821 822 823 824 825 826
}

static void
authorize_thread_done (GObject      *object,
                       GAsyncResult *res,
                       gpointer      user_data)
{
827
  g_autoptr(GError) error = NULL;
828 829
  BoltDevice *dev = BOLT_DEVICE (object);
  GTask *task = G_TASK (res);
830
  BoltStatus status;
831 832
  AuthData *auth_data;
  BoltAuth *auth;
833
  gboolean ok;
834
  guint64 now;
835

836 837 838
  auth_data = g_task_get_task_data (task);
  auth = auth_data->auth;

839 840
  ok = g_task_propagate_boolean (task, &error);

841
  if (!ok)
842 843
    bolt_auth_return_error (auth, &error);

844
  now = bolt_now_in_seconds ();
845
  status = bolt_auth_to_status (auth);
846 847 848 849
  g_object_set (dev,
                "status", status,
                "authtime", now,
                NULL);
850

851 852 853 854
  if (auth_data->callback)
    auth_data->callback (G_OBJECT (dev),
                         G_ASYNC_RESULT (auth),
                         auth_data->user_data);
855 856
}

857 858 859 860 861
void
bolt_device_authorize (BoltDevice         *dev,
                       BoltAuth           *auth,
                       GAsyncReadyCallback callback,
                       gpointer            user_data)
862 863 864 865
{
  AuthData *auth_data;
  GTask *task;

866 867
  g_object_set (auth, "device", dev, NULL);

868 869 870
  if (dev->status != BOLT_STATUS_CONNECTED &&
      dev->status != BOLT_STATUS_AUTH_ERROR)
    {
871 872
      bolt_auth_return_new_error (auth, BOLT_ERROR, BOLT_ERROR_FAILED,
                                  "wrong device state: %u", dev->status);
873

874 875
      if (callback)
        callback (G_OBJECT (dev), G_ASYNC_RESULT (auth), user_data);
876

877
      return;
878 879 880
    }

  task = g_task_new (dev, NULL, authorize_thread_done, NULL);
881 882 883
  auth_data = g_slice_new (AuthData);
  auth_data->callback = callback;
  auth_data->user_data = user_data;
884
  auth_data->auth = g_object_ref (auth);
885 886
  g_task_set_task_data (task, auth_data, auth_data_free);

887
  g_object_set (dev, "status", BOLT_STATUS_AUTHORIZING, NULL);
888 889 890 891 892

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

893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943
/* 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;
}
944 945 946 947

/* dbus methods */

static void
948 949 950
handle_authorize_done (GObject      *device,
                       GAsyncResult *res,
                       gpointer      user_data)
951
{
952 953 954 955 956 957 958
  GDBusMethodInvocation *inv;
  GError *error = NULL;
  BoltAuth *auth;
  gboolean ok;

  inv  = user_data;
  auth = BOLT_AUTH (res);
959

960
  ok = bolt_auth_check (auth, &error);
961
  if (ok)
962
    g_dbus_method_invocation_return_value (inv, g_variant_new ("()"));
963
  else
964
    g_dbus_method_invocation_take_error (inv, error);
965 966 967
}

static gboolean
968 969 970
handle_authorize (BoltExported          *object,
                  GVariant              *params,
                  GDBusMethodInvocation *inv)
971 972 973
{
  BoltDevice *dev = BOLT_DEVICE (object);
  GError *error = NULL;
974 975 976
  BoltAuth *auth;
  BoltSecurity level;
  BoltKey *key;
977

978 979
  level = dev->security;
  key = NULL;
980

981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
  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);
997 998 999 1000

  return TRUE;
}

1001 1002 1003
/* public methods */

BoltDevice *
1004
bolt_device_new_for_udev (struct udev_device *udev,
1005 1006
                          GError            **error)
{
1007
  struct udev_device *parent_dev;
1008 1009 1010 1011
  const char *uid;
  const char *name;
  const char *vendor;
  const char *syspath;
1012
  const char *parent;
1013 1014
  BoltSecurity security;
  BoltStatus status;
1015
  BoltDeviceType type;
1016
  BoltDevice *dev;
1017
  guint64 ct, at;
1018

1019 1020 1021 1022 1023 1024 1025
  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;
    }
1026

1027 1028
  syspath = udev_device_get_syspath (udev);
  g_return_val_if_fail (syspath != NULL, NULL);
1029

1030
  name = read_sysattr_name (udev, "device", error);
1031 1032 1033
  if (name == NULL)
    return NULL;

1034
  vendor = read_sysattr_name (udev, "vendor", error);
1035 1036
  if (vendor == NULL)
    return NULL;
1037

1038 1039 1040 1041
  name = cleanup_name (name, vendor, error);
  if (name == NULL)
    return NULL;

1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056
  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;
    }

1057 1058
  ct = (guint64) bolt_sysfs_device_get_time (udev, BOLT_ST_CTIME);

1059
  parent = bolt_sysfs_get_parent_uid (udev);
1060 1061 1062 1063
  security = bolt_sysfs_security_for_device (udev);
  status = bolt_status_from_udev (udev);
  at = bolt_status_is_authorized (status) ? ct : 0;

1064
  dev = g_object_new (BOLT_TYPE_DEVICE,
1065 1066 1067
                      "uid", uid,
                      "name", name,
                      "vendor", vendor,
1068
                      "type", type,
1069
                      "status", status,
1070
                      "sysfs-path", syspath,
1071
                      "parent", parent,
1072
                      "conntime", ct,
1073 1074
                      "authtime", at,
                      "security", security,
1075 1076
                      NULL);

1077

1078 1079 1080
  return dev;
}

1081
const char *
1082 1083 1084 1085
bolt_device_export (BoltDevice      *device,
                    GDBusConnection *connection,
                    GError         **error)
{
1086
  const char *path;
1087
  gboolean ok;
1088 1089

  g_return_val_if_fail (BOLT_IS_DEVICE (device), FALSE);
1090

1091
  path = bolt_device_get_object_path (device);
1092

1093 1094 1095 1096 1097
  ok = bolt_exported_export (BOLT_EXPORTED (device),
                             connection,
                             path,
                             error);

1098
  return ok ? path : NULL;
1099 1100 1101 1102 1103
}

void
bolt_device_unexport (BoltDevice *device)
{
1104
  bolt_exported_unexport (BOLT_EXPORTED (device));
1105
}
1106

1107 1108 1109 1110 1111 1112

BoltStatus
bolt_device_connected (BoltDevice         *dev,
                       struct udev_device *udev)
{
  const char *syspath;
1113
  const char *parent;
1114 1115
  BoltSecurity security;
  BoltStatus status;
1116
  guint64 ct, at;
1117 1118 1119

  syspath = udev_device_get_syspath (udev);
  status = bolt_status_from_udev (udev);
1120
  security = bolt_sysfs_security_for_device (udev);
1121
  parent = bolt_sysfs_get_parent_uid (udev);
1122

1123
  ct = (guint64) bolt_sysfs_device_get_time (udev, BOLT_ST_CTIME);