| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <regex> |
| #include <string> |
| #include <vector> |
| |
| #include <errno.h> |
| #include <sys/socket.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <android-base/stringprintf.h> |
| #include <android/multinetwork.h> |
| |
| #include "VtsHalNetNetdTestUtils.h" |
| |
| using android::base::StringPrintf; |
| |
| int checkNetworkExists(net_handle_t netHandle) { |
| int sock = socket(AF_INET6, SOCK_STREAM, 0); |
| if (sock == -1) { |
| return -ENOTSOCK; |
| } |
| int ret = android_setsocknetwork(netHandle, sock); |
| if (ret) { |
| ret = -errno; |
| } |
| close(sock); |
| return ret; |
| } |
| |
| // TODO: deduplicate this with system/netd/tests/binder_test.cpp. |
| static std::vector<std::string> runCommand(const std::string& command) { |
| std::vector<std::string> lines; |
| FILE* f; |
| |
| if ((f = popen(command.c_str(), "r")) == nullptr) { |
| perror("popen"); |
| return lines; |
| } |
| |
| char* line = nullptr; |
| size_t bufsize = 0; |
| ssize_t linelen = 0; |
| while ((linelen = getline(&line, &bufsize, f)) >= 0) { |
| lines.push_back(std::string(line, linelen)); |
| } |
| |
| free(line); |
| pclose(f); |
| return lines; |
| } |
| |
| static std::vector<std::string> listIpRules(const char* ipVersion) { |
| std::string command = StringPrintf("%s %s rule list", IP_PATH, ipVersion); |
| return runCommand(command); |
| } |
| |
| int countMatchingIpRules(const std::string& regexString) { |
| const std::regex regex(regexString, std::regex_constants::extended); |
| int matches = 0; |
| |
| for (const char* version : {"-4", "-6"}) { |
| std::vector<std::string> rules = listIpRules(version); |
| for (const auto& rule : rules) { |
| if (std::regex_search(rule, regex)) { |
| matches++; |
| } |
| } |
| } |
| |
| return matches; |
| } |
| |
| int countRulesForFwmark(const uint32_t fwmark) { |
| // Skip top nibble, which differs between rules. |
| std::string regex = |
| StringPrintf("from all fwmark 0x(%x|[0-9a-f]+%04x)/.* lookup ", fwmark, fwmark); |
| return countMatchingIpRules(regex); |
| } |
| |
| int checkReachability(net_handle_t netHandle, const char* addrStr) { |
| addrinfo *ai, hints = {.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV}; |
| int ret = getaddrinfo(addrStr, "53", &hints, &ai); |
| if (ret) { |
| return -EINVAL; |
| } |
| |
| int sock = socket(ai->ai_family, SOCK_DGRAM, 0); |
| if (sock == -1 || android_setsocknetwork(netHandle, sock) == -1) { |
| ret = -errno; |
| freeaddrinfo(ai); |
| return ret; |
| } |
| |
| ret = connect(sock, ai->ai_addr, ai->ai_addrlen); |
| close(sock); |
| if (ret == -1) { |
| ret = -errno; |
| } |
| freeaddrinfo(ai); |
| return ret; |
| } |