ed57b98758
This is just a subset of the recently-implemented getifaddrs(3), though if we want to handle interfaces (such as "rmnet_*") that don't have an address, we need to either expose ifaddrs_storage and keep track of which interfaces we've already seen (which is pretty messy), or refactor the netlink code so we can reuse it and just extract the information we need for if_nameindex(3). This patch goes the latter route. Also clean up if_nametoindex(3) and if_indextoname(3). Change-Id: I5ffc5df0bab62286cdda2e7af06f032c767119a8
73 lines
2 KiB
C++
73 lines
2 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <net/if.h>
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#include <errno.h>
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#include <ifaddrs.h>
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#include <gtest/gtest.h>
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TEST(net_if, if_nametoindex_if_indextoname) {
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unsigned index;
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index = if_nametoindex("lo");
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ASSERT_NE(index, 0U);
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char buf[IF_NAMESIZE] = {};
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char* name = if_indextoname(index, buf);
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ASSERT_STREQ("lo", name);
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}
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TEST(net_if, if_nametoindex_fail) {
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unsigned index = if_nametoindex("this-interface-does-not-exist");
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ASSERT_EQ(0U, index);
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}
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TEST(net_if, if_nameindex) {
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struct if_nameindex* list = if_nameindex();
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ASSERT_TRUE(list != nullptr);
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ASSERT_TRUE(list->if_index != 0);
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std::set<std::string> if_nameindex_names;
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char buf[IF_NAMESIZE] = {};
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bool saw_lo = false;
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for (struct if_nameindex* it = list; it->if_index != 0; ++it) {
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fprintf(stderr, "\t%d\t%s\n", it->if_index, it->if_name);
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if_nameindex_names.insert(it->if_name);
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EXPECT_EQ(it->if_index, if_nametoindex(it->if_name));
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EXPECT_STREQ(it->if_name, if_indextoname(it->if_index, buf));
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if (strcmp(it->if_name, "lo") == 0) saw_lo = true;
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}
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ASSERT_TRUE(saw_lo);
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if_freenameindex(list);
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std::set<std::string> getifaddrs_names;
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ifaddrs* ifa;
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ASSERT_EQ(0, getifaddrs(&ifa));
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for (ifaddrs* it = ifa; it != nullptr; it = it->ifa_next) {
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getifaddrs_names.insert(it->ifa_name);
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}
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freeifaddrs(ifa);
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ASSERT_EQ(getifaddrs_names, if_nameindex_names);
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}
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TEST(net_if, if_freenameindex_nullptr) {
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#if defined(__BIONIC__)
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if_freenameindex(nullptr);
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#endif
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}
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