/*

 * Copyright (c) Huawei Technologies Co., Ltd. 2026. All rights reserved.

 

 * K-NET is licensed under the Mulan PSL v2.

 * You can use this software according to the terms and conditions of the Mulan PSL v2.

 * You may obtain a copy of Mulan PSL v2 at:

      http://license.coscl.org.cn/MulanPSL2

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.

 * See the Mulan PSL v2 for more details.

 */





#include "securec.h"



#include <unistd.h>

#include <fcntl.h>

#include <dirent.h>



#include <sys/socket.h>

#include <sys/types.h>

#include <netinet/in.h>

#include <sys/ioctl.h>

#include <linux/if_arp.h>

#include <linux/if_tun.h>

#include <linux/if.h>



#include "knet_config.h"

#include "knet_log.h"

#include "knet_tun.h"

#include "common.h"

#include "mock.h"



#define MAC_LEN 6



DTEST_CASE_F(TUN, TEST_KNET_TAP_CREATE, NULL, NULL)

{

    KTestMock *Mock = CreateMock();

    DT_ASSERT_NOT_EQUAL(Mock, NULL);



    char ifname[IF_NAME_SIZE] = { 0 };

    uint8_t macAddr[MAC_LEN] = { 0 };

    uint16_t mtu = 0;

    uint32_t ipAddr = 0;

    int32_t fd;

    int tapIfIndex;

    int ret = 0;



    Mock->Create(ioctl, TEST_GetFuncRetPositive(0));

    Mock->Create(open, TEST_GetFuncRetPositive(0));

    Mock->Create(memcpy_s, TEST_GetFuncRetPositive(0));

    Mock->Create(socket, TEST_GetFuncRetPositive(0));

    Mock->Create(snprintf_truncated_s, TEST_GetFuncRetPositive(0));

    Mock->Create(strcpy_s, TEST_GetFuncRetPositive(0));

    Mock->Create(fcntl, TEST_GetFuncRetPositive(0));



    ret = KNET_TAPCreate(&fd, &tapIfIndex);

    DT_ASSERT_EQUAL(ret, 0);



    ret = KNET_FetchIfIndex(ifname, IF_NAME_SIZE, &tapIfIndex);

    DT_ASSERT_EQUAL(ret, 0);



    KNET_TapFree(fd);

    DT_ASSERT_EQUAL(ret, 0);

    Mock->Delete(strcpy_s);

    Mock->Delete(snprintf_truncated_s);

    Mock->Delete(socket);

    Mock->Delete(memcpy_s);

    Mock->Delete(ioctl);

    Mock->Delete(open);

    Mock->Delete(fcntl);

    DeleteMock(Mock);

}