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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2010 - 2011 Red Hat, Inc.
 */

#include "libnm/nm-default-libnm.h"

#include <sys/types.h>
#include <signal.h>

#include "nm-glib-aux/nm-time-utils.h"

#include "nm-test-libnm-utils.h"

static struct {
    NMTstcServiceInfo * sinfo;
    NMClient *          client;
    GDBusConnection *   bus;
    NMRemoteConnection *remote;
} gl = {};

/*****************************************************************************/

static void
add_cb(GObject *s, GAsyncResult *result, gpointer user_data)
{
    gboolean *done  = user_data;
    GError *  error = NULL;

    gl.remote = nm_client_add_connection_finish(gl.client, result, &error);
    g_assert_no_error(error);

    *done = TRUE;
    g_object_add_weak_pointer(G_OBJECT(gl.remote), (void **) &gl.remote);

    /* nm_client_add_connection_finish() adds a ref to @remote, but we
     * want the weak pointer to be cleared as soon as @client drops its own ref.
     * So drop ours.
     */
    g_object_unref(gl.remote);
}

#define TEST_CON_ID "blahblahblah"

static void
test_add_connection(void)
{
    NMConnection *connection;
    gboolean      done = FALSE;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    connection =
        nmtst_create_minimal_connection(TEST_CON_ID, NULL, NM_SETTING_WIRED_SETTING_NAME, NULL);

    nm_client_add_connection_async(gl.client, connection, TRUE, NULL, add_cb, &done);

    nmtst_main_context_iterate_until_assert(NULL, 5000, done);

    g_assert(gl.remote != NULL);

    /* Make sure the connection is the same as what we added */
    g_assert(
        nm_connection_compare(connection, NM_CONNECTION(gl.remote), NM_SETTING_COMPARE_FLAG_EXACT)
        == TRUE);
    g_object_unref(connection);
}

/*****************************************************************************/

static void
set_visible_cb(GObject *proxy, GAsyncResult *result, gpointer user_data)
{
    GError *  error = NULL;
    GVariant *ret;

    ret = g_dbus_proxy_call_finish(G_DBUS_PROXY(proxy), result, &error);
    g_assert_no_error(error);
    g_variant_unref(ret);
}

static void
visible_changed_cb(GObject *object, GParamSpec *pspec, gboolean *done)
{
    if (!nm_remote_connection_get_visible(NM_REMOTE_CONNECTION(object)))
        *done = TRUE;
}

static void
connection_removed_cb(NMClient *s, NMRemoteConnection *connection, gboolean *done)
{
    if (connection == gl.remote)
        *done = TRUE;
}

static void
invis_has_settings_cb(NMSetting *   setting,
                      const char *  key,
                      const GValue *value,
                      GParamFlags   flags,
                      gpointer      user_data)
{
    *((gboolean *) user_data) = TRUE;
}

static void
test_make_invisible(void)
{
    const GPtrArray *conns;
    int              i;
    GDBusProxy *     proxy;
    gboolean         visible_changed = FALSE, connection_removed = FALSE;
    gboolean         has_settings = FALSE;
    char *           path;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    g_assert(gl.remote != NULL);

    /* Listen for the remove event when the connection becomes invisible */
    g_signal_connect(gl.remote,
                     "notify::" NM_REMOTE_CONNECTION_VISIBLE,
                     G_CALLBACK(visible_changed_cb),
                     &visible_changed);
    g_signal_connect(gl.client,
                     "connection-removed",
                     G_CALLBACK(connection_removed_cb),
                     &connection_removed);

    path  = g_strdup(nm_connection_get_path(NM_CONNECTION(gl.remote)));
    proxy = g_dbus_proxy_new_sync(gl.bus,
                                  G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
                                  NULL,
                                  NM_DBUS_SERVICE,
                                  path,
                                  NM_DBUS_INTERFACE_SETTINGS_CONNECTION,
                                  NULL,
                                  NULL);
    g_assert(proxy != NULL);

    /* Bypass the NMClient object so we can test it independently */
    g_dbus_proxy_call(proxy,
                      "SetVisible",
                      g_variant_new("(b)", FALSE),
                      G_DBUS_CALL_FLAGS_NONE,
                      -1,
                      NULL,
                      set_visible_cb,
                      NULL);

    /* Wait for the connection to be removed */
    nmtst_main_context_iterate_until_assert(NULL, 5000, visible_changed && connection_removed);

    g_signal_handlers_disconnect_by_func(gl.remote,
                                         G_CALLBACK(visible_changed_cb),
                                         &visible_changed);
    g_signal_handlers_disconnect_by_func(gl.client,
                                         G_CALLBACK(connection_removed_cb),
                                         &connection_removed);

    /* Ensure NMClient no longer has the connection */
    conns = nm_client_get_connections(gl.client);
    for (i = 0; i < conns->len; i++) {
        NMConnection *candidate = NM_CONNECTION(conns->pdata[i]);

        g_assert((gpointer) gl.remote != (gpointer) candidate);
        g_assert(strcmp(path, nm_connection_get_path(candidate)) != 0);
    }

    /* And ensure the invisible connection no longer has any settings */
    g_assert(gl.remote);
    nm_connection_for_each_setting_value(NM_CONNECTION(gl.remote),
                                         invis_has_settings_cb,
                                         &has_settings);
    g_assert(has_settings == FALSE);

    g_free(path);
    g_object_unref(proxy);
}

/*****************************************************************************/

static void
vis_new_connection_cb(NMClient *foo, NMRemoteConnection *connection, NMRemoteConnection **new)
{
    *new = connection;
}

static void
test_make_visible(void)
{
    const GPtrArray *conns;
    int              i;
    GDBusProxy *     proxy;
    gboolean         found = FALSE;
    char *           path;
    NMRemoteConnection *new = NULL;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    g_assert(gl.remote != NULL);

    /* Wait for the new-connection signal when the connection is visible again */
    g_signal_connect(gl.client,
                     NM_CLIENT_CONNECTION_ADDED,
                     G_CALLBACK(vis_new_connection_cb),
                     &new);

    path  = g_strdup(nm_connection_get_path(NM_CONNECTION(gl.remote)));
    proxy = g_dbus_proxy_new_sync(gl.bus,
                                  G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
                                  NULL,
                                  NM_DBUS_SERVICE,
                                  path,
                                  NM_DBUS_INTERFACE_SETTINGS_CONNECTION,
                                  NULL,
                                  NULL);
    g_assert(proxy != NULL);

    /* Bypass the NMClient object so we can test it independently */
    g_dbus_proxy_call(proxy,
                      "SetVisible",
                      g_variant_new("(b)", TRUE),
                      G_DBUS_CALL_FLAGS_NONE,
                      -1,
                      NULL,
                      set_visible_cb,
                      NULL);

    /* Wait for the settings service to announce the connection again */
    nmtst_main_context_iterate_until_assert(NULL, 5000, new);

    /* Ensure the new connection is the same as the one we made visible again */
    g_assert(new == gl.remote);

    g_signal_handlers_disconnect_by_func(gl.client, G_CALLBACK(vis_new_connection_cb), &new);

    /* Ensure NMClient has the connection */
    conns = nm_client_get_connections(gl.client);
    for (i = 0; i < conns->len; i++) {
        NMConnection *candidate = NM_CONNECTION(conns->pdata[i]);

        if ((gpointer) gl.remote == (gpointer) candidate) {
            g_assert_cmpstr(path, ==, nm_connection_get_path(candidate));
            g_assert_cmpstr(TEST_CON_ID, ==, nm_connection_get_id(candidate));
            found = TRUE;
            break;
        }
    }
    g_assert(found == TRUE);

    g_free(path);
    g_object_unref(proxy);
}

/*****************************************************************************/

static void
deleted_cb(GObject *proxy, GAsyncResult *result, gpointer user_data)
{
    GError *  error = NULL;
    GVariant *ret;

    ret = g_dbus_proxy_call_finish(G_DBUS_PROXY(proxy), result, &error);
    g_assert_no_error(error);
    g_variant_unref(ret);
}

static void
removed_cb(NMClient *s, NMRemoteConnection *connection, gboolean *done)
{
    if (connection == gl.remote)
        *done = TRUE;
}

static void
test_remove_connection(void)
{
    NMRemoteConnection *connection;
    const GPtrArray *   conns;
    int                 i;
    GDBusProxy *        proxy;
    gboolean            done = FALSE;
    char *              path;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    /* Find a connection to delete */
    conns = nm_client_get_connections(gl.client);
    g_assert_cmpint(conns->len, >, 0);

    connection = NM_REMOTE_CONNECTION(conns->pdata[0]);
    g_assert(connection);
    g_assert(gl.remote == connection);
    path = g_strdup(nm_connection_get_path(NM_CONNECTION(connection)));
    g_signal_connect(gl.client, "connection-removed", G_CALLBACK(removed_cb), &done);

    proxy = g_dbus_proxy_new_sync(gl.bus,
                                  G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
                                  NULL,
                                  NM_DBUS_SERVICE,
                                  path,
                                  NM_DBUS_INTERFACE_SETTINGS_CONNECTION,
                                  NULL,
                                  NULL);
    g_assert(proxy != NULL);

    /* Bypass the NMClient object so we can test it independently */
    g_dbus_proxy_call(proxy, "Delete", NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, deleted_cb, NULL);

    nmtst_main_context_iterate_until_assert(NULL, 5000, done && !gl.remote);

    /* Ensure NMClient no longer has the connection */
    conns = nm_client_get_connections(gl.client);
    for (i = 0; i < conns->len; i++) {
        NMConnection *candidate = NM_CONNECTION(conns->pdata[i]);

        g_assert((gpointer) connection != (gpointer) candidate);
        g_assert_cmpstr(path, ==, nm_connection_get_path(candidate));
    }

    g_free(path);
    g_object_unref(proxy);
}

/*****************************************************************************/

#define TEST_ADD_REMOVE_ID "add-remove-test-connection"

static void
add_remove_cb(GObject *s, GAsyncResult *result, gpointer user_data)
{
    NMRemoteConnection *connection;
    gboolean *          done    = user_data;
    gs_free_error GError *error = NULL;

    connection = nm_client_add_connection_finish(gl.client, result, &error);
    g_assert_error(error, NM_CLIENT_ERROR, NM_CLIENT_ERROR_OBJECT_CREATION_FAILED);
    g_assert(connection == NULL);

    *done = TRUE;
}

static void
test_add_remove_connection(void)
{
    gs_unref_variant GVariant *ret           = NULL;
    GError *                   error         = NULL;
    gs_unref_object NMConnection *connection = NULL;
    gboolean                      done       = FALSE;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    /* This will cause the test server to immediately delete the connection
     * after creating it.
     */
    ret = g_dbus_proxy_call_sync(gl.sinfo->proxy,
                                 "AutoRemoveNextConnection",
                                 NULL,
                                 G_DBUS_CALL_FLAGS_NONE,
                                 -1,
                                 NULL,
                                 &error);
    nmtst_assert_success(ret, error);

    connection = nmtst_create_minimal_connection(TEST_ADD_REMOVE_ID,
                                                 NULL,
                                                 NM_SETTING_WIRED_SETTING_NAME,
                                                 NULL);
    nm_client_add_connection_async(gl.client, connection, TRUE, NULL, add_remove_cb, &done);

    nmtst_main_context_iterate_until_assert(NULL, 5000, done);
}

/*****************************************************************************/

static void
add_bad_cb(GObject *s, GAsyncResult *result, gpointer user_data)
{
    gboolean *    done          = user_data;
    gs_free_error GError *error = NULL;

    gl.remote = nm_client_add_connection_finish(gl.client, result, &error);
    g_assert_error(error, NM_CONNECTION_ERROR, NM_CONNECTION_ERROR_INVALID_PROPERTY);

    *done = TRUE;
}

static void
test_add_bad_connection(void)
{
    gs_unref_object NMConnection *connection = NULL;
    gboolean                      done       = FALSE;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    /* The test daemon doesn't support bond connections */
    connection = nmtst_create_minimal_connection("bad connection test",
                                                 NULL,
                                                 NM_SETTING_BOND_SETTING_NAME,
                                                 NULL);

    nm_client_add_connection_async(gl.client, connection, TRUE, NULL, add_bad_cb, &done);
    g_clear_object(&connection);

    nmtst_main_context_iterate_until_assert(NULL, 5000, done);
    g_assert(gl.remote == NULL);
}

/*****************************************************************************/

static void
save_hostname_cb(GObject *s, GAsyncResult *result, gpointer user_data)
{
    gboolean *    done          = user_data;
    gs_free_error GError *error = NULL;

    nm_client_save_hostname_finish(gl.client, result, &error);
    g_assert_no_error(error);

    *done = TRUE;
}

static void
test_save_hostname(void)
{
    gint64   until_ts;
    gboolean done  = FALSE;
    GError * error = NULL;

    if (!nmtstc_service_available(gl.sinfo))
        return;

    /* test-networkmanager-service.py requires the hostname to contain a '.' */
    nm_client_save_hostname(gl.client, "foo", NULL, &error);
    g_assert_error(error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_HOSTNAME);
    g_clear_error(&error);

    nm_client_save_hostname_async(gl.client, "example.com", NULL, save_hostname_cb, &done);

    until_ts = nm_utils_get_monotonic_timestamp_msec() + 5000;
    while (TRUE) {
        g_main_context_iteration(NULL, FALSE);
        if (done)
            break;
        if (nm_utils_get_monotonic_timestamp_msec() >= until_ts)
            g_assert_not_reached();
    }

    g_assert(gl.remote == NULL);
}

/*****************************************************************************/

NMTST_DEFINE();

int
main(int argc, char **argv)
{
    int     ret;
    GError *error = NULL;

    g_setenv("LIBNM_USE_SESSION_BUS", "1", TRUE);

    nmtst_init(&argc, &argv, TRUE);

    gl.bus = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, &error);
    nmtst_assert_success(gl.bus, error);

    gl.sinfo = nmtstc_service_init();

    gl.client = nmtstc_client_new(TRUE);

    /* FIXME: these tests assume that they get run in order, but g_test_run()
     * does not actually guarantee that!
     */
    g_test_add_func("/client/add_connection", test_add_connection);
    g_test_add_func("/client/make_invisible", test_make_invisible);
    g_test_add_func("/client/make_visible", test_make_visible);
    g_test_add_func("/client/remove_connection", test_remove_connection);
    g_test_add_func("/client/add_remove_connection", test_add_remove_connection);
    g_test_add_func("/client/add_bad_connection", test_add_bad_connection);
    g_test_add_func("/client/save_hostname", test_save_hostname);

    ret = g_test_run();

    nm_clear_pointer(&gl.sinfo, nmtstc_service_cleanup);
    g_clear_object(&gl.client);
    g_clear_object(&gl.bus);

    return ret;
}