2019-04-29 21:25:05 +00:00
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// Copyright 2018 The gVisor Authors.
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2018-12-10 22:41:40 +00:00
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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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2019-02-08 07:14:06 +00:00
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#include <net/if.h>
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2019-02-20 20:53:07 +00:00
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#include <netinet/in.h>
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2019-02-08 07:14:06 +00:00
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#include <sys/ioctl.h>
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2019-02-20 20:53:07 +00:00
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#include <sys/socket.h>
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2019-02-08 07:14:06 +00:00
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#include <cstring>
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2018-12-10 22:41:40 +00:00
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#include "test/syscalls/linux/ip_socket_test_util.h"
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namespace gvisor {
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namespace testing {
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2019-02-08 07:14:06 +00:00
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PosixErrorOr<int> InterfaceIndex(std::string name) {
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2019-04-29 21:03:04 +00:00
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// TODO(igudger): Consider using netlink.
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2019-02-08 07:14:06 +00:00
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ifreq req = {};
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memcpy(req.ifr_name, name.c_str(), name.size());
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ASSIGN_OR_RETURN_ERRNO(auto sock, Socket(AF_INET, SOCK_DGRAM, 0));
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RETURN_ERROR_IF_SYSCALL_FAIL(ioctl(sock.get(), SIOCGIFINDEX, &req));
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return req.ifr_ifindex;
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}
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2018-12-10 22:41:40 +00:00
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namespace {
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std::string DescribeSocketType(int type) {
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return absl::StrCat(((type & SOCK_NONBLOCK) != 0) ? "non-blocking " : "",
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((type & SOCK_CLOEXEC) != 0) ? "close-on-exec " : "");
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}
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} // namespace
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SocketPairKind IPv6TCPAcceptBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected IPv6 TCP socket");
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2018-12-10 22:41:40 +00:00
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return SocketPairKind{
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2019-06-14 00:23:35 +00:00
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description, AF_INET6, type | SOCK_STREAM, IPPROTO_TCP,
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TCPAcceptBindSocketPairCreator(AF_INET6, type | SOCK_STREAM, 0,
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/* dual_stack = */ false)};
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2018-12-10 22:41:40 +00:00
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}
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SocketPairKind IPv4TCPAcceptBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected IPv4 TCP socket");
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2018-12-10 22:41:40 +00:00
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return SocketPairKind{
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2019-06-14 00:23:35 +00:00
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description, AF_INET, type | SOCK_STREAM, IPPROTO_TCP,
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TCPAcceptBindSocketPairCreator(AF_INET, type | SOCK_STREAM, 0,
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/* dual_stack = */ false)};
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2018-12-10 22:41:40 +00:00
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}
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SocketPairKind DualStackTCPAcceptBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected dual stack TCP socket");
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2018-12-10 22:41:40 +00:00
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return SocketPairKind{
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2019-06-14 00:23:35 +00:00
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description, AF_INET6, type | SOCK_STREAM, IPPROTO_TCP,
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TCPAcceptBindSocketPairCreator(AF_INET6, type | SOCK_STREAM, 0,
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/* dual_stack = */ true)};
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2018-12-10 22:41:40 +00:00
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}
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SocketPairKind IPv6UDPBidirectionalBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected IPv6 UDP socket");
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2019-06-14 00:23:35 +00:00
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return SocketPairKind{
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description, AF_INET6, type | SOCK_DGRAM, IPPROTO_UDP,
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UDPBidirectionalBindSocketPairCreator(AF_INET6, type | SOCK_DGRAM, 0,
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/* dual_stack = */ false)};
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2018-12-10 22:41:40 +00:00
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}
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SocketPairKind IPv4UDPBidirectionalBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected IPv4 UDP socket");
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2019-06-14 00:23:35 +00:00
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return SocketPairKind{
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description, AF_INET, type | SOCK_DGRAM, IPPROTO_UDP,
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UDPBidirectionalBindSocketPairCreator(AF_INET, type | SOCK_DGRAM, 0,
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/* dual_stack = */ false)};
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2018-12-10 22:41:40 +00:00
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}
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SocketPairKind DualStackUDPBidirectionalBindSocketPair(int type) {
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std::string description =
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2019-02-08 07:14:06 +00:00
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absl::StrCat(DescribeSocketType(type), "connected dual stack UDP socket");
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2019-06-14 00:23:35 +00:00
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return SocketPairKind{
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description, AF_INET6, type | SOCK_DGRAM, IPPROTO_UDP,
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UDPBidirectionalBindSocketPairCreator(AF_INET6, type | SOCK_DGRAM, 0,
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/* dual_stack = */ true)};
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2018-12-10 22:41:40 +00:00
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}
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2019-02-08 07:14:06 +00:00
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SocketPairKind IPv4UDPUnboundSocketPair(int type) {
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std::string description =
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absl::StrCat(DescribeSocketType(type), "IPv4 UDP socket");
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return SocketPairKind{
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2019-06-14 00:23:35 +00:00
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description, AF_INET, type | SOCK_DGRAM, IPPROTO_UDP,
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UDPUnboundSocketPairCreator(AF_INET, type | SOCK_DGRAM, 0,
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/* dual_stack = */ false)};
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2019-02-08 07:14:06 +00:00
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}
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2019-02-20 20:53:07 +00:00
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SocketKind IPv4UDPUnboundSocket(int type) {
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std::string description =
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absl::StrCat(DescribeSocketType(type), "IPv4 UDP socket");
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2019-06-14 00:23:35 +00:00
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return SocketKind{
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description, AF_INET, type | SOCK_DGRAM, IPPROTO_UDP,
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UnboundSocketCreator(AF_INET, type | SOCK_DGRAM, IPPROTO_UDP)};
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2019-02-20 20:53:07 +00:00
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}
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SocketKind IPv4TCPUnboundSocket(int type) {
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std::string description =
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absl::StrCat(DescribeSocketType(type), "IPv4 TCP socket");
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2019-06-14 00:23:35 +00:00
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return SocketKind{
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description, AF_INET, type | SOCK_STREAM, IPPROTO_TCP,
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UnboundSocketCreator(AF_INET, type | SOCK_STREAM, IPPROTO_TCP)};
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2019-02-20 20:53:07 +00:00
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}
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2019-07-19 16:27:33 +00:00
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PosixError IfAddrHelper::Load() {
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Release();
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RETURN_ERROR_IF_SYSCALL_FAIL(getifaddrs(&ifaddr_));
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return PosixError(0);
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}
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void IfAddrHelper::Release() {
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if (ifaddr_) {
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freeifaddrs(ifaddr_);
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}
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ifaddr_ = nullptr;
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}
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std::vector<std::string> IfAddrHelper::InterfaceList(int family) {
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std::vector<std::string> names;
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for (auto ifa = ifaddr_; ifa != NULL; ifa = ifa->ifa_next) {
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if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != family) {
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continue;
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}
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names.emplace(names.end(), ifa->ifa_name);
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}
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return names;
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}
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sockaddr* IfAddrHelper::GetAddr(int family, std::string name) {
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for (auto ifa = ifaddr_; ifa != NULL; ifa = ifa->ifa_next) {
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if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != family) {
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continue;
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}
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if (name == ifa->ifa_name) {
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return ifa->ifa_addr;
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}
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}
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return nullptr;
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}
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PosixErrorOr<int> IfAddrHelper::GetIndex(std::string name) {
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return InterfaceIndex(name);
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}
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std::string GetAddr4Str(in_addr* a) {
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char str[INET_ADDRSTRLEN];
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inet_ntop(AF_INET, a, str, sizeof(str));
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return std::string(str);
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}
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std::string GetAddr6Str(in6_addr* a) {
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char str[INET6_ADDRSTRLEN];
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inet_ntop(AF_INET6, a, str, sizeof(str));
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return std::string(str);
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}
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std::string GetAddrStr(sockaddr* a) {
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if (a->sa_family == AF_INET) {
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auto src = &(reinterpret_cast<sockaddr_in*>(a)->sin_addr);
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return GetAddr4Str(src);
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} else if (a->sa_family == AF_INET6) {
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auto src = &(reinterpret_cast<sockaddr_in6*>(a)->sin6_addr);
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return GetAddr6Str(src);
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}
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return std::string("<invalid>");
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}
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2018-12-10 22:41:40 +00:00
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} // namespace testing
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} // namespace gvisor
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