mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-11-25 05:03:05 +00:00
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
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/*
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* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <arpa/inet.h>
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#include <linux/if_tun.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "crosvm.h"
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/*
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* These must match the network arguments supplied to the plugin in plugins.rs.
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* IPv4 addresses here are in host-native byte order.
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*/
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const uint32_t expected_ip = 0x64735c05; // 100.115.92.5
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const uint32_t expected_netmask = 0xfffffffc; // 255.255.255.252
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const uint8_t expected_mac[] = {0xde, 0x21, 0xe8, 0x47, 0x6b, 0x6a};
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int main(int argc, char** argv) {
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struct crosvm *crosvm;
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struct crosvm_net_config net_config;
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int ret = crosvm_connect(&crosvm);
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if (ret) {
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fprintf(stderr, "failed to connect to crosvm: %d\n", ret);
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return 1;
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}
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ret = crosvm_net_get_config(crosvm, &net_config);
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if (ret) {
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fprintf(stderr, "failed to get crosvm net config: %d\n", ret);
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return 1;
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}
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if (net_config.tap_fd < 0) {
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fprintf(stderr, "fd %d is < 0\n", net_config.tap_fd);
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return 1;
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}
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unsigned int features;
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if (ioctl(net_config.tap_fd, TUNGETFEATURES, &features) < 0) {
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fprintf(stderr,
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"failed to read tap features: %s\n",
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strerror(errno));
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return 1;
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}
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if (net_config.host_ip != htonl(expected_ip)) {
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char ip_addr[INET_ADDRSTRLEN];
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inet_ntop(AF_INET, &net_config.host_ip, ip_addr, sizeof(ip_addr));
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fprintf(stderr, "ip %s != 100.115.92.5\n", ip_addr);
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return 1;
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}
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if (net_config.netmask != htonl(expected_netmask)) {
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char netmask[INET_ADDRSTRLEN];
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inet_ntop(AF_INET, &net_config.netmask, netmask, sizeof(netmask));
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fprintf(stderr, "netmask %s != 255.255.255.252\n", netmask);
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return 1;
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}
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if (memcmp(net_config.host_mac_address,
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expected_mac,
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sizeof(expected_mac)) != 0) {
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fprintf(stderr,
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"mac %02X:%02X:%02X:%02X:%02X:%02X != de:21:e8:47:6b:6a\n",
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net_config.host_mac_address[0],
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net_config.host_mac_address[1],
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net_config.host_mac_address[2],
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net_config.host_mac_address[3],
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net_config.host_mac_address[4],
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net_config.host_mac_address[5]);
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return 1;
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}
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return 0;
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}
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