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/*
* Copyright (C) 2018-2025 Red Hat, Inc. All rights reserved.
*
* Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under GPL-2.0+
*/
#include "config.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <stdint.h>
#include <limits.h>
#include <sys/socket.h>
#ifdef KNET_SOLARIS
#include <sys/ethernet.h>
#else
#include <net/ethernet.h>
#endif
#ifdef KNET_LINUX
#include <linux/if_tun.h>
#include <netinet/ether.h>
#endif
#ifdef KNET_BSD
#include <net/if_dl.h>
#endif
#include "test-common.h"
static int test(void)
{
char device_name[IFNAMSIZ];
size_t size = IFNAMSIZ;
int err=0;
nozzle_t nozzle;
char *original_mac = NULL, *current_mac = NULL, *temp_mac = NULL;
struct ether_addr *orig_mac, *cur_mac, *tmp_mac;
printf("Testing set MAC\n");
memset(device_name, 0, size);
nozzle = nozzle_open(device_name, size, NULL);
if (!nozzle) {
printf("Unable to init %s\n", device_name);
return -1;
}
printf("Get current MAC\n");
if (nozzle_get_mac(nozzle, &original_mac) < 0) {
printf("Unable to get current MAC address.\n");
err = -1;
goto out_clean;
}
orig_mac = ether_aton(original_mac);
if (nozzle_get_mac(nozzle, ¤t_mac) < 0) {
printf("Unable to get current MAC address.\n");
err = -1;
goto out_clean;
}
printf("Current MAC: %s\n", current_mac);
printf("Setting MAC: 00:01:01:01:01:01\n");
if (nozzle_set_mac(nozzle, "00:01:01:01:01:01") < 0) {
printf("Unable to set current MAC address.\n");
err = -1;
goto out_clean;
}
if (nozzle_get_mac(nozzle, &temp_mac) < 0) {
printf("Unable to get current MAC address.\n");
err = -1;
goto out_clean;
}
printf("Current MAC: %s\n", temp_mac);
cur_mac = ether_aton(current_mac);
tmp_mac = ether_aton(temp_mac);
printf("Comparing MAC addresses\n");
if (memcmp(cur_mac, tmp_mac, sizeof(struct ether_addr))) {
printf("Mac addresses are not the same?!\n");
err = -1;
goto out_clean;
}
printf("Testing reset_mac\n");
if (nozzle_reset_mac(nozzle) < 0) {
printf("Unable to reset mac address\n");
err = -1;
goto out_clean;
}
if (current_mac) {
free(current_mac);
current_mac = NULL;
}
if (nozzle_get_mac(nozzle, ¤t_mac) < 0) {
printf("Unable to get current MAC address.\n");
err = -1;
goto out_clean;
}
cur_mac = ether_aton(current_mac);
if (memcmp(cur_mac, orig_mac, sizeof(struct ether_addr))) {
printf("Mac addresses are not the same?!\n");
err = -1;
goto out_clean;
}
printf("Testing ERROR conditions\n");
printf("Pass NULL to set_mac (pass1)\n");
errno = 0;
if ((nozzle_set_mac(nozzle, NULL) >= 0) || (errno != EINVAL)) {
printf("Something is wrong in nozzle_set_mac sanity checks\n");
err = -1;
goto out_clean;
}
printf("Pass NULL to set_mac (pass2)\n");
errno = 0;
if ((nozzle_set_mac(NULL, current_mac) >= 0) || (errno != EINVAL)) {
printf("Something is wrong in nozzle_set_mac sanity checks\n");
err = -1;
goto out_clean;
}
out_clean:
if (current_mac)
free(current_mac);
if (temp_mac)
free(temp_mac);
if (original_mac)
free(original_mac);
if (nozzle) {
nozzle_close(nozzle);
}
return err;
}
int main(void)
{
need_root();
need_tun();
if (test() < 0)
return FAIL;
return PASS;
}
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