cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

dbus.c (1854B)

      1/*
      2 * Helpers for using D-Bus
      3 *
      4 * Copyright (C) 2019 Red Hat, Inc.
      5 *
      6 * This work is licensed under the terms of the GNU GPL, version 2.  See
      7 * the COPYING file in the top-level directory.
      8 */
      9
     10#include "qemu/osdep.h"
     11#include "qemu/dbus.h"
     12#include "qemu/error-report.h"
     13#include "qapi/error.h"
     14
     15/*
     16 * qemu_dbus_get_queued_owners() - return the list of queued unique names
     17 * @connection: A GDBusConnection
     18 * @name: a service name
     19 *
     20 * Return: a GStrv of unique names, or NULL on failure.
     21 */
     22GStrv
     23qemu_dbus_get_queued_owners(GDBusConnection *connection, const char *name,
     24                            Error **errp)
     25{
     26    g_autoptr(GDBusProxy) proxy = NULL;
     27    g_autoptr(GVariant) result = NULL;
     28    g_autoptr(GVariant) child = NULL;
     29    g_autoptr(GError) err = NULL;
     30
     31    proxy = g_dbus_proxy_new_sync(connection, G_DBUS_PROXY_FLAGS_NONE, NULL,
     32                                  "org.freedesktop.DBus",
     33                                  "/org/freedesktop/DBus",
     34                                  "org.freedesktop.DBus",
     35                                  NULL, &err);
     36    if (!proxy) {
     37        error_setg(errp, "Failed to create DBus proxy: %s", err->message);
     38        return NULL;
     39    }
     40
     41    result = g_dbus_proxy_call_sync(proxy, "ListQueuedOwners",
     42                                    g_variant_new("(s)", name),
     43                                    G_DBUS_CALL_FLAGS_NO_AUTO_START,
     44                                    -1, NULL, &err);
     45    if (!result) {
     46        if (g_error_matches(err,
     47                            G_DBUS_ERROR,
     48                            G_DBUS_ERROR_NAME_HAS_NO_OWNER)) {
     49            return g_new0(char *, 1);
     50        }
     51        error_setg(errp, "Failed to call ListQueuedOwners: %s", err->message);
     52        return NULL;
     53    }
     54
     55    child = g_variant_get_child_value(result, 0);
     56    return g_variant_dup_strv(child, NULL);
     57}