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NetworkManager/shared/nm-test-utils-impl.c
Lubomir Rintel 1de8383ad9 all: goodbye libnm-glib 
This removes libnm-glib, libnm-glib-vpn, and libnm-util for good.
The it has been replaced with libnm since NetworkManager 1.0, disabled
by default since 1.12 and no up-to-date distributions ship it for years
now.

Removing the libraries allows us to:

* Remove the horrible hacks that were in place to deal with accidental use
  of both the new and old library in a single process.
* Relief the translators of maintenance burden of similar yet different
  strings.
* Get rid of known bad code without chances of ever getting fixed
  (libnm-glib/nm-object.c and libnm-glib/nm-object-cache.c)
* Generally lower the footprint of the releases and our workspace

If there are some really really legacy users; they can just build
libnm-glib and friends from the NetworkManager-1.16 distribution. The
D-Bus API is stable and old libnm-glib will keep working forever.

https://github.com/NetworkManager/NetworkManager/pull/308
2019-03-19 17:15:15 +01:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright 2010 - 2015 Red Hat, Inc.
*
*/
#include "nm-default.h"
#include <sys/wait.h>
#include "NetworkManager.h"
#include "nm-dbus-compat.h"
#include "nm-test-libnm-utils.h"
#define NMTSTC_NM_SERVICE NM_BUILD_SRCDIR"/tools/test-networkmanager-service.py"
/*****************************************************************************/
static gboolean
name_exists (GDBusConnection *c, const char *name)
{
GVariant *reply;
gboolean exists = FALSE;
reply = g_dbus_connection_call_sync (c,
DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS,
"GetNameOwner",
g_variant_new ("(s)", name),
NULL,
G_DBUS_CALL_FLAGS_NO_AUTO_START,
-1,
NULL,
NULL);
if (reply != NULL) {
exists = TRUE;
g_variant_unref (reply);
}
return exists;
}
typedef struct {
GMainLoop *mainloop;
GDBusConnection *bus;
int exit_code;
bool exited:1;
bool name_found:1;
} ServiceInitWaitData;
static gboolean
_service_init_wait_probe_name (gpointer user_data)
{
ServiceInitWaitData *data = user_data;
if (!name_exists (data->bus, "org.freedesktop.NetworkManager"))
return G_SOURCE_CONTINUE;
data->name_found = TRUE;
g_main_loop_quit (data->mainloop);
return G_SOURCE_REMOVE;
}
static void
_service_init_wait_child_wait (GPid pid,
int status,
gpointer user_data)
{
ServiceInitWaitData *data = user_data;
data->exited = TRUE;
data->exit_code = status;
g_main_loop_quit (data->mainloop);
}
NMTstcServiceInfo *
nmtstc_service_available (NMTstcServiceInfo *info)
{
gs_free char *m = NULL;
if (info)
return info;
/* This happens, when test-networkmanager-service.py exits with 77 status
* code. */
m = g_strdup_printf ("missing dependency for running NetworkManager stub service %s", NMTSTC_NM_SERVICE);
g_test_skip (m);
return NULL;
}
NMTstcServiceInfo *
nmtstc_service_init (void)
{
NMTstcServiceInfo *info;
const char *args[] = { TEST_NM_PYTHON, NMTSTC_NM_SERVICE, NULL };
GError *error = NULL;
info = g_malloc0 (sizeof (*info));
info->bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
g_assert_no_error (error);
/* Spawn the test service. info->keepalive_fd will be a pipe to the service's
* stdin; if it closes, the service will exit immediately. We use this to
* make sure the service exits if the test program crashes.
*/
g_spawn_async_with_pipes (NULL, (char **) args, NULL,
G_SPAWN_SEARCH_PATH
| G_SPAWN_DO_NOT_REAP_CHILD,
NULL, NULL,
&info->pid, &info->keepalive_fd, NULL, NULL, &error);
g_assert_no_error (error);
{
nm_auto_unref_gsource GSource *timeout_source = NULL;
nm_auto_unref_gsource GSource *child_source = NULL;
GMainContext *context = g_main_context_new ();
ServiceInitWaitData data = {
.bus = info->bus,
.mainloop = g_main_loop_new (context, FALSE),
};
gboolean had_timeout;
timeout_source = g_timeout_source_new (50);
g_source_set_callback (timeout_source, _service_init_wait_probe_name, &data, NULL);
g_source_attach (timeout_source, context);
child_source = g_child_watch_source_new (info->pid);
g_source_set_callback (child_source, (GSourceFunc)(void (*) (void)) _service_init_wait_child_wait, &data, NULL);
g_source_attach (child_source, context);
had_timeout = !nmtst_main_loop_run (data.mainloop, 30000);
g_source_destroy (timeout_source);
g_source_destroy (child_source);
g_main_loop_unref (data.mainloop);
g_main_context_unref (context);
if (had_timeout)
g_error ("test service %s did not start in time", NMTSTC_NM_SERVICE);
if (!data.name_found) {
g_assert (data.exited);
info->pid = NM_PID_T_INVAL;
nmtstc_service_cleanup (info);
if ( WIFEXITED (data.exit_code)
&& WEXITSTATUS (data.exit_code) == 77) {
/* If the stub service exited with status 77 it means that it decided
* that it cannot conduct the tests and the test should be (gracefully)
* skip. The likely reason for that, is that libnm is not available
* via pygobject. */
return NULL;
}
g_error ("test service %s exited with error code %d", NMTSTC_NM_SERVICE, data.exit_code);
}
}
/* Grab a proxy to our fake NM service to trigger tests */
info->proxy = g_dbus_proxy_new_sync (info->bus,
G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES |
G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS |
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
NULL,
NM_DBUS_SERVICE,
NM_DBUS_PATH,
"org.freedesktop.NetworkManager.LibnmGlibTest",
NULL, &error);
g_assert_no_error (error);
return info;
}
void
nmtstc_service_cleanup (NMTstcServiceInfo *info)
{
int ret;
gint64 t;
int status;
if (!info)
return;
nm_close (nm_steal_fd (&info->keepalive_fd));
g_clear_object (&info->proxy);
if (info->pid != NM_PID_T_INVAL) {
kill (info->pid, SIGTERM);
t = g_get_monotonic_time ();
again_wait:
ret = waitpid (info->pid, &status, WNOHANG);
if (ret == 0) {
if (t + 2000000 < g_get_monotonic_time ()) {
kill (info->pid, SIGKILL);
g_error ("child process %lld did not exit within timeout", (long long) info->pid);
}
g_usleep (G_USEC_PER_SEC / 50);
goto again_wait;
}
if (ret == -1 && errno == EINTR)
goto again_wait;
g_assert (ret == info->pid);
}
g_assert (!name_exists (info->bus, "org.freedesktop.NetworkManager"));
g_clear_object (&info->bus);
memset (info, 0, sizeof (*info));
g_free (info);
}
typedef struct {
GMainLoop *loop;
const char *ifname;
char *path;
NMDevice *device;
} AddDeviceInfo;
static void
device_added_cb (NMClient *client,
NMDevice *device,
gpointer user_data)
{
AddDeviceInfo *info = user_data;
g_assert (device);
g_assert_cmpstr (nm_object_get_path (NM_OBJECT (device)), ==, info->path);
g_assert_cmpstr (nm_device_get_iface (device), ==, info->ifname);
info->device = device;
g_main_loop_quit (info->loop);
}
static gboolean
timeout (gpointer user_data)
{
g_assert_not_reached ();
return G_SOURCE_REMOVE;
}
static GVariant *
call_add_wired_device (GDBusProxy *proxy, const char *ifname, const char *hwaddr,
const char **subchannels, GError **error)
{
const char *empty[] = { NULL };
if (!hwaddr)
hwaddr = "/";
if (!subchannels)
subchannels = empty;
return g_dbus_proxy_call_sync (proxy,
"AddWiredDevice",
g_variant_new ("(ss^as)", ifname, hwaddr, subchannels),
G_DBUS_CALL_FLAGS_NO_AUTO_START,
3000,
NULL,
error);
}
static GVariant *
call_add_device (GDBusProxy *proxy, const char *method, const char *ifname, GError **error)
{
return g_dbus_proxy_call_sync (proxy,
method,
g_variant_new ("(s)", ifname),
G_DBUS_CALL_FLAGS_NO_AUTO_START,
3000,
NULL,
error);
}
static NMDevice *
add_device_common (NMTstcServiceInfo *sinfo, NMClient *client,
const char *method, const char *ifname,
const char *hwaddr, const char **subchannels)
{
AddDeviceInfo info;
GError *error = NULL;
GVariant *ret;
guint timeout_id;
if (g_strcmp0 (method, "AddWiredDevice") == 0)
ret = call_add_wired_device (sinfo->proxy, ifname, hwaddr, subchannels, &error);
else
ret = call_add_device (sinfo->proxy, method, ifname, &error);
g_assert_no_error (error);
g_assert (ret);
g_assert_cmpstr (g_variant_get_type_string (ret), ==, "(o)");
g_variant_get (ret, "(o)", &info.path);
g_variant_unref (ret);
/* Wait for libnm to find the device */
info.ifname = ifname;
info.loop = g_main_loop_new (NULL, FALSE);
g_signal_connect (client, "device-added",
G_CALLBACK (device_added_cb), &info);
timeout_id = g_timeout_add_seconds (5, timeout, NULL);
g_main_loop_run (info.loop);
g_source_remove (timeout_id);
g_signal_handlers_disconnect_by_func (client, device_added_cb, &info);
g_free (info.path);
g_main_loop_unref (info.loop);
return info.device;
}
NMDevice *
nmtstc_service_add_device (NMTstcServiceInfo *sinfo, NMClient *client,
const char *method, const char *ifname)
{
return add_device_common (sinfo, client, method, ifname, NULL, NULL);
}
NMDevice *
nmtstc_service_add_wired_device (NMTstcServiceInfo *sinfo, NMClient *client,
const char *ifname, const char *hwaddr,
const char **subchannels)
{
return add_device_common (sinfo, client, "AddWiredDevice", ifname, hwaddr, subchannels);
}
void
nmtstc_service_add_connection (NMTstcServiceInfo *sinfo,
NMConnection *connection,
gboolean verify_connection,
char **out_path)
{
nmtstc_service_add_connection_variant (sinfo,
nm_connection_to_dbus (connection, NM_CONNECTION_SERIALIZE_ALL),
verify_connection,
out_path);
}
void
nmtstc_service_add_connection_variant (NMTstcServiceInfo *sinfo,
GVariant *connection,
gboolean verify_connection,
char **out_path)
{
GVariant *result;
GError *error = NULL;
g_assert (sinfo);
g_assert (G_IS_DBUS_PROXY (sinfo->proxy));
g_assert (g_variant_is_of_type (connection, G_VARIANT_TYPE ("a{sa{sv}}")));
result = g_dbus_proxy_call_sync (sinfo->proxy,
"AddConnection",
g_variant_new ("(vb)", connection, verify_connection),
G_DBUS_CALL_FLAGS_NO_AUTO_START,
3000,
NULL,
&error);
g_assert_no_error (error);
g_assert (g_variant_is_of_type (result, G_VARIANT_TYPE ("(o)")));
if (out_path)
g_variant_get (result, "(o)", out_path);
g_variant_unref (result);
}
void
nmtstc_service_update_connection (NMTstcServiceInfo *sinfo,
const char *path,
NMConnection *connection,
gboolean verify_connection)
{
if (!path)
path = nm_connection_get_path (connection);
g_assert (path);
nmtstc_service_update_connection_variant (sinfo,
path,
nm_connection_to_dbus (connection, NM_CONNECTION_SERIALIZE_ALL),
verify_connection);
}
void
nmtstc_service_update_connection_variant (NMTstcServiceInfo *sinfo,
const char *path,
GVariant *connection,
gboolean verify_connection)
{
GVariant *result;
GError *error = NULL;
g_assert (sinfo);
g_assert (G_IS_DBUS_PROXY (sinfo->proxy));
g_assert (g_variant_is_of_type (connection, G_VARIANT_TYPE ("a{sa{sv}}")));
g_assert (path && path[0] == '/');
result = g_dbus_proxy_call_sync (sinfo->proxy,
"UpdateConnection",
g_variant_new ("(ovb)", path, connection, verify_connection),
G_DBUS_CALL_FLAGS_NO_AUTO_START,
3000,
NULL,
&error);
g_assert_no_error (error);
g_assert (g_variant_is_of_type (result, G_VARIANT_TYPE ("()")));
g_variant_unref (result);
}
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