mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 14:43:32 +00:00
1e15e6f2d7
Do not rely on the udp_receive_buffer field from IsolateData as a buffer for reading data in the recvfrom call. Bug: Change-Id: I43d19f624fd2a406429cc5387bd536524472b4f7 Reviewed-on: https://dart-review.googlesource.com/10212 Reviewed-by: Zach Anderson <zra@google.com>
201 lines
4.9 KiB
C++
201 lines
4.9 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/globals.h"
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#if defined(HOST_OS_MACOS)
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#include "bin/socket.h"
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#include <errno.h> // NOLINT
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#include "bin/fdutils.h"
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#include "platform/signal_blocker.h"
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namespace dart {
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namespace bin {
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Socket::Socket(intptr_t fd)
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: ReferenceCounted(),
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fd_(fd),
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port_(ILLEGAL_PORT),
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udp_receive_buffer_(NULL) {}
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void Socket::SetClosedFd() {
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fd_ = kClosedFd;
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}
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static intptr_t Create(const RawAddr& addr) {
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intptr_t fd;
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fd = NO_RETRY_EXPECTED(socket(addr.ss.ss_family, SOCK_STREAM, 0));
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if (fd < 0) {
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return -1;
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}
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if (!FDUtils::SetCloseOnExec(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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if (!FDUtils::SetNonBlocking(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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return fd;
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}
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static intptr_t Connect(intptr_t fd, const RawAddr& addr) {
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intptr_t result = TEMP_FAILURE_RETRY(
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connect(fd, &addr.addr, SocketAddress::GetAddrLength(addr)));
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if ((result == 0) || (errno == EINPROGRESS)) {
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return fd;
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}
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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intptr_t Socket::CreateConnect(const RawAddr& addr) {
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intptr_t fd = Create(addr);
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if (fd < 0) {
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return fd;
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}
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return Connect(fd, addr);
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}
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intptr_t Socket::CreateBindConnect(const RawAddr& addr,
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const RawAddr& source_addr) {
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intptr_t fd = Create(addr);
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if (fd < 0) {
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return fd;
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}
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intptr_t result = TEMP_FAILURE_RETRY(
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bind(fd, &source_addr.addr, SocketAddress::GetAddrLength(source_addr)));
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if ((result != 0) && (errno != EINPROGRESS)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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return Connect(fd, addr);
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}
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intptr_t Socket::CreateBindDatagram(const RawAddr& addr, bool reuseAddress) {
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intptr_t fd;
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fd = NO_RETRY_EXPECTED(socket(addr.addr.sa_family, SOCK_DGRAM, IPPROTO_UDP));
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if (fd < 0) {
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return -1;
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}
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if (!FDUtils::SetCloseOnExec(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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if (reuseAddress) {
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int optval = 1;
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VOID_NO_RETRY_EXPECTED(
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setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
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}
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if (NO_RETRY_EXPECTED(
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bind(fd, &addr.addr, SocketAddress::GetAddrLength(addr))) < 0) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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if (!FDUtils::SetNonBlocking(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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return fd;
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}
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intptr_t ServerSocket::CreateBindListen(const RawAddr& addr,
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intptr_t backlog,
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bool v6_only) {
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intptr_t fd;
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fd = TEMP_FAILURE_RETRY(socket(addr.ss.ss_family, SOCK_STREAM, 0));
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if (fd < 0) {
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return -1;
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}
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if (!FDUtils::SetCloseOnExec(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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int optval = 1;
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VOID_NO_RETRY_EXPECTED(
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setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
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if (addr.ss.ss_family == AF_INET6) {
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optval = v6_only ? 1 : 0;
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VOID_NO_RETRY_EXPECTED(
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setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &optval, sizeof(optval)));
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}
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if (NO_RETRY_EXPECTED(
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bind(fd, &addr.addr, SocketAddress::GetAddrLength(addr))) < 0) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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// Test for invalid socket port 65535 (some browsers disallow it).
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if ((SocketAddress::GetAddrPort(addr) == 0) &&
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(SocketBase::GetPort(fd) == 65535)) {
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// Don't close the socket until we have created a new socket, ensuring
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// that we do not get the bad port number again.
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intptr_t new_fd = CreateBindListen(addr, backlog, v6_only);
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FDUtils::SaveErrorAndClose(fd);
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return new_fd;
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}
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if (NO_RETRY_EXPECTED(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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if (!FDUtils::SetNonBlocking(fd)) {
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FDUtils::SaveErrorAndClose(fd);
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return -1;
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}
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return fd;
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}
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bool ServerSocket::StartAccept(intptr_t fd) {
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USE(fd);
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return true;
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}
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intptr_t ServerSocket::Accept(intptr_t fd) {
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intptr_t socket;
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struct sockaddr clientaddr;
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socklen_t addrlen = sizeof(clientaddr);
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socket = TEMP_FAILURE_RETRY(accept(fd, &clientaddr, &addrlen));
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if (socket == -1) {
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if (errno == EAGAIN) {
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// We need to signal to the caller that this is actually not an
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// error. We got woken up from the poll on the listening socket,
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// but there is no connection ready to be accepted.
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ASSERT(kTemporaryFailure != -1);
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socket = kTemporaryFailure;
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}
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} else {
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if (!FDUtils::SetCloseOnExec(socket)) {
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FDUtils::SaveErrorAndClose(socket);
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return -1;
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}
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if (!FDUtils::SetNonBlocking(socket)) {
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FDUtils::SaveErrorAndClose(socket);
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return -1;
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}
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}
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return socket;
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}
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} // namespace bin
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} // namespace dart
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#endif // defined(HOST_OS_MACOS)
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