path: root/src/platform/tests/test-nmp-object.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 - 2017 Red Hat, Inc.
 */

#include "nm-default.h"

#include <libudev.h>
#include <linux/pkt_sched.h>

#include "platform/nmp-object.h"
#include "nm-udev-aux/nm-udev-utils.h"

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

struct {
    GList *udev_devices;
} global;

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

static void
test_obj_base(void)
{
    static const union {
        GObject   g;
        NMPObject k;
    } x = {};
    static const union {
        GTypeClass k;
        NMPClass   c;
    } l                        = {};
    static const GObject *   g = &x.g;
    static const GTypeClass *k = &l.k;
    static const NMPObject * o = &x.k;
    static const NMPClass *  c = &l.c;

    NMObjBaseInst * obj;
    gs_unref_object GCancellable *obj_cancellable = g_cancellable_new();
    nm_auto_nmpobj NMPObject *obj_link            = nmp_object_new_link(10);

    g_assert(&g->g_type_instance == (void *) &o->_class);
    g_assert(&g->g_type_instance.g_class == (void *) &o->_class);

    g_assert(sizeof(o->parent.parent) == sizeof(GTypeInstance));

    g_assert(&c->parent == (void *) c);
    g_assert(&c->parent.parent.g_type_class == (void *) c);
    g_assert(&c->parent.parent.g_type == (void *) c);
    g_assert(&c->parent.parent.g_type == &k->g_type);

    g_assert(sizeof(c->parent.parent) == sizeof(GTypeClass));

    g_assert(&o->parent == (void *) o);
    g_assert(&o->parent.klass == (void *) &o->_class);

    obj = (NMObjBaseInst *) obj_cancellable;
    g_assert(!NMP_CLASS_IS_VALID((NMPClass *) obj->klass));
    g_assert(G_TYPE_CHECK_INSTANCE_TYPE(obj, G_TYPE_CANCELLABLE));

    obj = (NMObjBaseInst *) obj_link;
    g_assert(NMP_CLASS_IS_VALID((NMPClass *) obj->klass));
    g_assert(!G_TYPE_CHECK_INSTANCE_TYPE(obj, G_TYPE_CANCELLABLE));
}

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

static gboolean
_nmp_object_id_equal(const NMPObject *a, const NMPObject *b)
{
    gboolean a_b = nmp_object_id_equal(a, b);

    g_assert(NM_IN_SET(a_b, FALSE, TRUE) && a_b == nmp_object_id_equal(b, a));
    return a_b;
}
#define nmp_object_id_equal _nmp_object_id_equal

static gboolean
_nmp_object_equal(const NMPObject *a, const NMPObject *b)
{
    gboolean a_b = nmp_object_equal(a, b);

    g_assert(NM_IN_SET(a_b, FALSE, TRUE) && a_b == nmp_object_equal(b, a));
    return a_b;
}
#define nmp_object_equal _nmp_object_equal

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

static void
_assert_cache_multi_lookup_contains(const NMPCache *             cache,
                                    const NMDedupMultiHeadEntry *head_entry,
                                    const NMPObject *            obj,
                                    gboolean                     visible_only,
                                    gboolean                     contains)
{
    NMDedupMultiIter iter;
    gboolean         found;
    guint            i, len;
    const NMPObject *o;

    g_assert(NMP_OBJECT_IS_VALID(obj));

    g_assert(nmp_cache_lookup_obj(cache, obj) == obj);
    g_assert(!head_entry
             || (head_entry->len > 0
                 && c_list_length(&head_entry->lst_entries_head) == head_entry->len));

    len = head_entry ? head_entry->len : 0;

    found = FALSE;
    i     = 0;
    nmp_cache_iter_for_each (&iter, head_entry, &o) {
        g_assert(NMP_OBJECT_IS_VALID(o));
        if (obj == o) {
            if (!visible_only || nmp_object_is_visible(o)) {
                g_assert(!found);
                found = TRUE;
            }
        }
        i++;
    }

    g_assert(len == i);
    g_assert(!!contains == found);
}

static void
_assert_cache_multi_lookup_contains_link(const NMPCache * cache,
                                         gboolean         visible_only,
                                         const NMPObject *obj,
                                         gboolean         contains)
{
    const NMDedupMultiHeadEntry *head_entry;
    NMPLookup                    lookup;

    g_assert(cache);

    nmp_lookup_init_obj_type(&lookup, NMP_OBJECT_TYPE_LINK);
    head_entry = nmp_cache_lookup(cache, &lookup);
    _assert_cache_multi_lookup_contains(cache, head_entry, obj, visible_only, contains);
}

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

static void
ops_post_check(NMPCache *       cache,
               NMPCacheOpsType  ops_type,
               const NMPObject *obj_old,
               const NMPObject *obj_new,
               const NMPObject *obj_new_expected,
               NMPCacheOpsType  expected_ops_type)
{
    g_assert(cache);

    g_assert_cmpint(expected_ops_type, ==, ops_type);

    switch (ops_type) {
    case NMP_CACHE_OPS_ADDED:
        g_assert(!obj_old);
        g_assert(NMP_OBJECT_IS_VALID(obj_new));
        g_assert(nmp_object_is_alive(obj_new));
        g_assert(nmp_object_id_equal(obj_new_expected, obj_new));
        g_assert(nmp_object_equal(obj_new_expected, obj_new));
        break;
    case NMP_CACHE_OPS_UPDATED:
        g_assert(obj_old != obj_new);
        g_assert(NMP_OBJECT_IS_VALID(obj_old));
        g_assert(NMP_OBJECT_IS_VALID(obj_new));
        g_assert(nmp_object_is_alive(obj_old));
        g_assert(nmp_object_is_alive(obj_new));
        g_assert(nmp_object_id_equal(obj_new_expected, obj_new));
        g_assert(nmp_object_id_equal(obj_new_expected, obj_old));
        g_assert(nmp_object_id_equal(obj_old, obj_new));
        g_assert(nmp_object_equal(obj_new_expected, obj_new));
        g_assert(!nmp_object_equal(obj_new_expected, obj_old));
        g_assert(!nmp_object_equal(obj_old, obj_new));
        break;
    case NMP_CACHE_OPS_REMOVED:
        g_assert(!obj_new);
        g_assert(NMP_OBJECT_IS_VALID(obj_old));
        g_assert(nmp_object_is_alive(obj_old));
        if (obj_new_expected)
            g_assert(nmp_object_id_equal(obj_new_expected, obj_old));
        break;
    case NMP_CACHE_OPS_UNCHANGED:
        g_assert(obj_old == obj_new);
        if (obj_old) {
            g_assert(NMP_OBJECT_IS_VALID(obj_old));
            g_assert(nmp_object_is_alive(obj_old));
            g_assert(nmp_object_equal(obj_old, obj_new));
            g_assert(nmp_object_id_equal(obj_new_expected, obj_new));
        } else
            g_assert(!obj_new_expected);
        break;
    default:
        g_assert_not_reached();
    }
}

static void
_nmp_cache_update_netlink(NMPCache *        cache,
                          NMPObject *       obj,
                          const NMPObject **out_obj_old,
                          const NMPObject **out_obj_new,
                          NMPCacheOpsType   expected_ops_type)
{
    NMPCacheOpsType  ops_type;
    const NMPObject *obj_prev;
    const NMPObject *obj_old;
    const NMPObject *obj_new;
    nm_auto_nmpobj NMPObject *obj_new_expected = NULL;

    g_assert(cache);
    g_assert(NMP_OBJECT_IS_VALID(obj));

    obj_prev         = nmp_cache_lookup_link(cache, NMP_OBJECT_CAST_LINK(obj)->ifindex);
    obj_new_expected = nmp_object_clone(obj, FALSE);
    if (obj_prev && obj_prev->_link.udev.device)
        obj_new_expected->_link.udev.device = udev_device_ref(obj_prev->_link.udev.device);
    _nmp_object_fixup_link_udev_fields(&obj_new_expected, NULL, nmp_cache_use_udev_get(cache));

    ops_type = nmp_cache_update_netlink(cache, obj, FALSE, &obj_old, &obj_new);
    ops_post_check(cache,
                   ops_type,
                   obj_old,
                   obj_new,
                   nmp_object_is_alive(obj_new_expected) ? obj_new_expected : NULL,
                   expected_ops_type);

    if (out_obj_new)
        *out_obj_new = obj_new;
    else
        nmp_object_unref(obj_new);
    if (out_obj_old)
        *out_obj_old = obj_old;
    else
        nmp_object_unref(obj_old);
}

static const NMPlatformLink pl_link_2 = {
    .ifindex = 2,
    .name    = "eth0",
    .type    = NM_LINK_TYPE_ETHERNET,
};

static const NMPlatformLink pl_link_3 = {
    .ifindex = 3,
    .name    = "wlan0",
    .type    = NM_LINK_TYPE_WIFI,
};

static void
test_cache_link(void)
{
    NMPCache *                      cache;
    NMPObject *                     objm1;
    const NMPObject *               obj_old, *obj_new;
    NMPObject                       objs1;
    struct udev_device *            udev_device_2 = g_list_nth_data(global.udev_devices, 0);
    struct udev_device *            udev_device_3 = g_list_nth_data(global.udev_devices, 0);
    NMPCacheOpsType                 ops_type;
    nm_auto_unref_dedup_multi_index NMDedupMultiIndex *multi_idx = NULL;
    gboolean                                           use_udev  = nmtst_get_rand_uint32() % 2;

    multi_idx = nm_dedup_multi_index_new();

    cache = nmp_cache_new(multi_idx, use_udev);

    /* if we have a link, and don't set is_in_netlink, adding it has no effect. */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    g_assert(NMP_OBJECT_UP_CAST(&objm1->object) == objm1);
    g_assert(!nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache, objm1, &obj_old, &obj_new, NMP_CACHE_OPS_UNCHANGED);
    ASSERT_nmp_cache_is_consistent(cache);
    g_assert(!obj_old);
    g_assert(!obj_new);
    g_assert(!nmp_cache_lookup_obj(cache, objm1));
    g_assert(!nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex)));
    nmp_object_unref(objm1);

    /* Only when setting @is_in_netlink the link is added. */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    objm1->_link.netlink.is_in_netlink = TRUE;
    g_assert(nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache, objm1, &obj_old, &obj_new, NMP_CACHE_OPS_ADDED);
    ASSERT_nmp_cache_is_consistent(cache);
    g_assert(!obj_old);
    g_assert(obj_new);
    g_assert(objm1 == obj_new);
    g_assert(nmp_object_equal(objm1, obj_new));
    g_assert(nmp_cache_lookup_obj(cache, objm1) == obj_new);
    g_assert(nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
             == obj_new);
    g_assert(nmp_object_is_visible(obj_new));
    _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
    _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, TRUE);
    nmp_object_unref(objm1);
    nmp_object_unref(obj_new);

    /* updating the same link with identical value, has no effect. */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    objm1->_link.netlink.is_in_netlink = TRUE;
    g_assert(nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache, objm1, &obj_old, &obj_new, NMP_CACHE_OPS_UNCHANGED);
    ASSERT_nmp_cache_is_consistent(cache);
    g_assert(obj_old);
    g_assert(obj_new);
    g_assert(obj_new != objm1);
    g_assert(nmp_object_equal(objm1, obj_new));
    g_assert(nmp_cache_lookup_obj(cache, objm1) == obj_new);
    g_assert(nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
             == obj_new);
    nmp_object_unref(objm1);
    nmp_object_unref(obj_new);
    nmp_object_unref(obj_new);

    /* remove the link from netlink */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    g_assert(!nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache, objm1, &obj_old, &obj_new, NMP_CACHE_OPS_REMOVED);
    ASSERT_nmp_cache_is_consistent(cache);
    g_assert(obj_old);
    g_assert(!obj_new);
    g_assert(!nmp_cache_lookup_obj(cache, objm1));
    g_assert(!nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex)));
    nmp_object_unref(objm1);
    nmp_object_unref(obj_old);
    nmp_object_unref(obj_new);

    if (udev_device_2) {
        /* now add the link only with aspect UDEV. */
        ops_type =
            nmp_cache_update_link_udev(cache, pl_link_2.ifindex, udev_device_2, &obj_old, &obj_new);
        ASSERT_nmp_cache_is_consistent(cache);
        g_assert_cmpint(ops_type, ==, NMP_CACHE_OPS_ADDED);
        g_assert(!obj_old);
        g_assert(obj_new);
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
            == obj_new);
        g_assert(!nmp_object_is_visible(obj_new));
        _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, FALSE);
        _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
        nmp_object_unref(obj_new);
    }

    /* add it in netlink too. */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    objm1->_link.netlink.is_in_netlink = TRUE;
    g_assert(nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache,
                              objm1,
                              &obj_old,
                              &obj_new,
                              udev_device_2 ? NMP_CACHE_OPS_UPDATED : NMP_CACHE_OPS_ADDED);
    ASSERT_nmp_cache_is_consistent(cache);
    if (udev_device_2) {
        g_assert(obj_old);
        g_assert(!nmp_object_is_visible(obj_old));
    } else
        g_assert(!obj_old);
    g_assert(nmp_object_equal(objm1, obj_new));
    g_assert(nmp_cache_lookup_obj(cache, objm1) == obj_new);
    g_assert(nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
             == obj_new);
    g_assert(nmp_object_is_visible(obj_new));
    _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, TRUE);
    _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
    nmp_object_unref(objm1);
    nmp_object_unref(obj_old);
    nmp_object_unref(obj_new);

    /* remove again from netlink. */
    objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_2);
    objm1->_link.netlink.is_in_netlink = FALSE;
    g_assert(!nmp_object_is_alive(objm1));
    _nmp_cache_update_netlink(cache,
                              objm1,
                              &obj_old,
                              &obj_new,
                              udev_device_2 ? NMP_CACHE_OPS_UPDATED : NMP_CACHE_OPS_REMOVED);
    ASSERT_nmp_cache_is_consistent(cache);
    if (udev_device_2)
        g_assert(obj_new == objm1);
    else
        g_assert(!obj_new);
    g_assert(obj_old);
    g_assert(nmp_object_is_alive(obj_old));
    if (udev_device_2) {
        g_assert(nmp_cache_lookup_obj(cache, objm1) == obj_new);
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
            == obj_new);
        g_assert(!nmp_object_is_visible(obj_new));
        _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, FALSE);
        _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
    } else {
        g_assert(nmp_cache_lookup_obj(cache, objm1) == NULL);
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_2.ifindex))
            == NULL);
        g_assert(!nmp_object_is_alive(obj_new));
        g_assert(!nmp_object_is_visible(obj_new));
    }
    nmp_object_unref(objm1);
    nmp_object_unref(obj_old);
    nmp_object_unref(obj_new);

    /* now another link only with aspect UDEV. */
    if (udev_device_3) {
        /* now add the link only with aspect UDEV. */
        ops_type =
            nmp_cache_update_link_udev(cache, pl_link_3.ifindex, udev_device_3, &obj_old, &obj_new);
        g_assert_cmpint(ops_type, ==, NMP_CACHE_OPS_ADDED);
        ASSERT_nmp_cache_is_consistent(cache);
        g_assert(NMP_OBJECT_IS_VALID(obj_new));
        g_assert(!obj_old);
        g_assert(!nmp_object_is_visible(obj_new));
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_3.ifindex))
            == obj_new);
        _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, FALSE);
        _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
        g_assert_cmpint(obj_new->_link.netlink.is_in_netlink, ==, FALSE);
        g_assert_cmpint(obj_new->link.initialized, ==, FALSE);
        nmp_object_unref(obj_new);

        /* add it in netlink too. */
        objm1 = nmp_object_new(NMP_OBJECT_TYPE_LINK, (NMPlatformObject *) &pl_link_3);
        objm1->_link.netlink.is_in_netlink = TRUE;
        g_assert(nmp_object_is_alive(objm1));
        _nmp_cache_update_netlink(cache, objm1, &obj_old, &obj_new, NMP_CACHE_OPS_UPDATED);
        ASSERT_nmp_cache_is_consistent(cache);
        g_assert(obj_old);
        g_assert(obj_new == objm1);
        g_assert(nmp_object_equal(objm1, obj_new));
        g_assert(!obj_old || !nmp_object_is_visible(obj_old));
        g_assert(nmp_cache_lookup_obj(cache, objm1) == obj_new);
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_3.ifindex))
            == obj_new);
        g_assert(nmp_object_is_visible(obj_new));
        _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, TRUE);
        _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
        g_assert_cmpint(obj_new->_link.netlink.is_in_netlink, ==, TRUE);
        g_assert_cmpint(obj_new->link.initialized, ==, TRUE);
        nmp_object_unref(objm1);
        nmp_object_unref(obj_old);
        nmp_object_unref(obj_new);

        /* remove UDEV. */
        ops_type = nmp_cache_update_link_udev(cache, pl_link_3.ifindex, NULL, &obj_old, &obj_new);
        g_assert_cmpint(ops_type, ==, NMP_CACHE_OPS_UPDATED);
        ASSERT_nmp_cache_is_consistent(cache);
        g_assert(obj_old && nmp_object_is_visible(obj_old));
        g_assert(
            nmp_cache_lookup_obj(cache, nmp_object_stackinit_id_link(&objs1, pl_link_3.ifindex))
            == obj_new);
        g_assert(nmp_object_is_visible(obj_new));
        _assert_cache_multi_lookup_contains_link(cache, TRUE, obj_new, TRUE);
        _assert_cache_multi_lookup_contains_link(cache, FALSE, obj_new, TRUE);
        g_assert_cmpint(obj_new->_link.netlink.is_in_netlink, ==, TRUE);
        g_assert_cmpint(obj_new->link.initialized, ==, !nmp_cache_use_udev_get(cache));
        nmp_object_unref(obj_new);
        nmp_object_unref(obj_old);
    }

    nmp_cache_free(cache);
}

const char noqueue[]  = "noqueue";
const char fq_codel[] = "fq_codel";
const char ingress[]  = "ingress";

static const NMPlatformQdisc pl_qdisc_1a = {
    .ifindex     = 1,
    .kind        = noqueue,
    .addr_family = AF_UNSPEC,
    .handle      = 0,
    .parent      = TC_H_ROOT,
    .info        = 0,
};

static const NMPlatformQdisc pl_qdisc_1b = {
    .ifindex     = 1,
    .kind        = fq_codel,
    .addr_family = AF_UNSPEC,
    .handle      = 0,
    .parent      = TC_H_ROOT,
    .info        = 0,
};

static const NMPlatformQdisc pl_qdisc_1c = {
    .ifindex     = 1,
    .kind        = ingress,
    .addr_family = AF_UNSPEC,
    .handle      = TC_H_MAKE(TC_H_INGRESS, 0),
    .parent      = TC_H_INGRESS,
    .info        = 0,
};

static const NMPlatformQdisc pl_qdisc_2 = {
    .ifindex     = 2,
    .kind        = fq_codel,
    .addr_family = AF_UNSPEC,
    .handle      = 0,
    .parent      = TC_H_ROOT,
    .info        = 0,
};

static void
test_cache_qdisc(void)
{
    NMPCache *                      cache;
    nm_auto_unref_dedup_multi_index NMDedupMultiIndex *multi_idx = NULL;
    NMPLookup                                          lookup;
    const NMDedupMultiHeadEntry *                      head_entry;
    nm_auto_nmpobj NMPObject *obj1a =
        nmp_object_new(NMP_OBJECT_TYPE_QDISC, (NMPlatformObject *) &pl_qdisc_1a);
    nm_auto_nmpobj NMPObject *obj1b =
        nmp_object_new(NMP_OBJECT_TYPE_QDISC, (NMPlatformObject *) &pl_qdisc_1b);
    nm_auto_nmpobj NMPObject *obj1c =
        nmp_object_new(NMP_OBJECT_TYPE_QDISC, (NMPlatformObject *) &pl_qdisc_1c);
    nm_auto_nmpobj NMPObject *obj2 =
        nmp_object_new(NMP_OBJECT_TYPE_QDISC, (NMPlatformObject *) &pl_qdisc_2);

    multi_idx = nm_dedup_multi_index_new();
    cache     = nmp_cache_new(multi_idx, nmtst_get_rand_uint32() % 2);

    g_assert(nmp_cache_lookup_obj(cache, obj1a) == NULL);

    g_assert(nmp_cache_update_netlink(cache, obj1a, FALSE, NULL, NULL) == NMP_CACHE_OPS_ADDED);
    g_assert(nmp_cache_lookup_obj(cache, obj1a) == obj1a);
    g_assert(nmp_cache_lookup_obj(cache, obj1b) == obj1a);
    g_assert(nmp_cache_lookup_obj(cache, obj2) == NULL);

    g_assert(nmp_cache_update_netlink(cache, obj1b, FALSE, NULL, NULL) == NMP_CACHE_OPS_UPDATED);
    g_assert(nmp_cache_lookup_obj(cache, obj1a) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj1b) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj2) == NULL);

    g_assert(nmp_cache_update_netlink(cache, obj1c, FALSE, NULL, NULL) == NMP_CACHE_OPS_ADDED);
    g_assert(nmp_cache_lookup_obj(cache, obj1a) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj1b) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj1c) == obj1c);
    g_assert(nmp_cache_lookup_obj(cache, obj2) == NULL);

    g_assert(nmp_cache_update_netlink(cache, obj2, FALSE, NULL, NULL) == NMP_CACHE_OPS_ADDED);
    g_assert(nmp_cache_lookup_obj(cache, obj1a) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj1b) == obj1b);
    g_assert(nmp_cache_lookup_obj(cache, obj2) == obj2);

    head_entry = nmp_cache_lookup(cache, nmp_lookup_init_object(&lookup, NMP_OBJECT_TYPE_QDISC, 1));
    g_assert(head_entry->len == 2);

    nmp_cache_free(cache);
}

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

NMTST_DEFINE();

int
main(int argc, char **argv)
{
    int           result;
    NMUdevClient *udev_client;

    nmtst_init_assert_logging(&argc, &argv, "INFO", "DEFAULT");

    udev_client = nm_udev_client_new((const char *[]){"net", NULL}, NULL, NULL);
    {
        struct udev_enumerate * enumerator;
        struct udev_list_entry *devices, *l;

        enumerator = nm_udev_client_enumerate_new(udev_client);

        /* Demand that the device is initialized (udev rules ran,
		 * device has a stable name now) in case udev is running
		 * (not in a container). */
        if (access("/sys", W_OK) == 0)
            udev_enumerate_add_match_is_initialized(enumerator);

        udev_enumerate_scan_devices(enumerator);

        devices = udev_enumerate_get_list_entry(enumerator);
        for (l = devices; l != NULL; l = udev_list_entry_get_next(l)) {
            struct udev_device *udevice;

            udevice = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerator),
                                                   udev_list_entry_get_name(l));
            if (udevice == NULL)
                continue;

            global.udev_devices = g_list_prepend(global.udev_devices, udevice);
        }
        global.udev_devices = g_list_reverse(global.udev_devices);

        udev_enumerate_unref(enumerator);
    }

    g_test_add_func("/nmp-object/obj-base", test_obj_base);
    g_test_add_func("/nmp-object/cache_link", test_cache_link);
    g_test_add_func("/nmp-object/cache_qdisc", test_cache_qdisc);

    result = g_test_run();

    while (global.udev_devices) {
        udev_device_unref(global.udev_devices->data);
        global.udev_devices = g_list_delete_link(global.udev_devices, global.udev_devices);
    }

    nm_udev_client_unref(udev_client);

    return result;
}