net_if_test.cpp revision ed57b98758176f0cccdec16cbed524e444039fe7 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <net/if.h>
18
19#include <errno.h>
20#include <ifaddrs.h>
21
22#include <gtest/gtest.h>
23
24TEST(net_if, if_nametoindex_if_indextoname) {
25  unsigned index;
26  index = if_nametoindex("lo");
27  ASSERT_NE(index, 0U);
28
29  char buf[IF_NAMESIZE] = {};
30  char* name = if_indextoname(index, buf);
31  ASSERT_STREQ("lo", name);
32}
33
34TEST(net_if, if_nametoindex_fail) {
35  unsigned index = if_nametoindex("this-interface-does-not-exist");
36  ASSERT_EQ(0U, index);
37}
38
39TEST(net_if, if_nameindex) {
40  struct if_nameindex* list = if_nameindex();
41  ASSERT_TRUE(list != nullptr);
42
43  ASSERT_TRUE(list->if_index != 0);
44
45  std::set<std::string> if_nameindex_names;
46  char buf[IF_NAMESIZE] = {};
47  bool saw_lo = false;
48  for (struct if_nameindex* it = list; it->if_index != 0; ++it) {
49    fprintf(stderr, "\t%d\t%s\n", it->if_index, it->if_name);
50    if_nameindex_names.insert(it->if_name);
51    EXPECT_EQ(it->if_index, if_nametoindex(it->if_name));
52    EXPECT_STREQ(it->if_name, if_indextoname(it->if_index, buf));
53    if (strcmp(it->if_name, "lo") == 0) saw_lo = true;
54  }
55  ASSERT_TRUE(saw_lo);
56  if_freenameindex(list);
57
58  std::set<std::string> getifaddrs_names;
59  ifaddrs* ifa;
60  ASSERT_EQ(0, getifaddrs(&ifa));
61  for (ifaddrs* it = ifa; it != nullptr; it = it->ifa_next) {
62    getifaddrs_names.insert(it->ifa_name);
63  }
64  freeifaddrs(ifa);
65
66  ASSERT_EQ(getifaddrs_names, if_nameindex_names);
67}
68
69TEST(net_if, if_freenameindex_nullptr) {
70#if defined(__BIONIC__)
71  if_freenameindex(nullptr);
72#endif
73}
74