mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-26 17:40:27 +00:00
213025f210
That's what this class really is; in fact that's what the first line of the comment says it is. This commit does not rename the main files, since those will contain other time-related classes in a little bit.
422 lines
11 KiB
C++
422 lines
11 KiB
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibCore/Socket.h>
|
|
#include <LibCore/System.h>
|
|
|
|
namespace Core {
|
|
|
|
ErrorOr<int> Socket::create_fd(SocketDomain domain, SocketType type)
|
|
{
|
|
int socket_domain;
|
|
switch (domain) {
|
|
case SocketDomain::Inet:
|
|
socket_domain = AF_INET;
|
|
break;
|
|
case SocketDomain::Local:
|
|
socket_domain = AF_LOCAL;
|
|
break;
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
int socket_type;
|
|
switch (type) {
|
|
case SocketType::Stream:
|
|
socket_type = SOCK_STREAM;
|
|
break;
|
|
case SocketType::Datagram:
|
|
socket_type = SOCK_DGRAM;
|
|
break;
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
// Let's have a safe default of CLOEXEC. :^)
|
|
#ifdef SOCK_CLOEXEC
|
|
return System::socket(socket_domain, socket_type | SOCK_CLOEXEC, 0);
|
|
#else
|
|
auto fd = TRY(System::socket(socket_domain, socket_type, 0));
|
|
TRY(System::fcntl(fd, F_SETFD, FD_CLOEXEC));
|
|
return fd;
|
|
#endif
|
|
}
|
|
|
|
ErrorOr<IPv4Address> Socket::resolve_host(DeprecatedString const& host, SocketType type)
|
|
{
|
|
int socket_type;
|
|
switch (type) {
|
|
case SocketType::Stream:
|
|
socket_type = SOCK_STREAM;
|
|
break;
|
|
case SocketType::Datagram:
|
|
socket_type = SOCK_DGRAM;
|
|
break;
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
struct addrinfo hints = {};
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = socket_type;
|
|
hints.ai_flags = 0;
|
|
hints.ai_protocol = 0;
|
|
|
|
auto const results = TRY(Core::System::getaddrinfo(host.characters(), nullptr, hints));
|
|
|
|
for (auto const& result : results.addresses()) {
|
|
if (result.ai_family == AF_INET) {
|
|
auto* socket_address = bit_cast<struct sockaddr_in*>(result.ai_addr);
|
|
NetworkOrdered<u32> const network_ordered_address { socket_address->sin_addr.s_addr };
|
|
return IPv4Address { network_ordered_address };
|
|
}
|
|
}
|
|
|
|
return Error::from_string_literal("Could not resolve to IPv4 address");
|
|
}
|
|
|
|
ErrorOr<void> Socket::connect_local(int fd, DeprecatedString const& path)
|
|
{
|
|
auto address = SocketAddress::local(path);
|
|
auto maybe_sockaddr = address.to_sockaddr_un();
|
|
if (!maybe_sockaddr.has_value()) {
|
|
dbgln("Core::Socket::connect_local: Could not obtain a sockaddr_un");
|
|
return Error::from_errno(EINVAL);
|
|
}
|
|
|
|
auto addr = maybe_sockaddr.release_value();
|
|
return System::connect(fd, bit_cast<struct sockaddr*>(&addr), sizeof(addr));
|
|
}
|
|
|
|
ErrorOr<void> Socket::connect_inet(int fd, SocketAddress const& address)
|
|
{
|
|
auto addr = address.to_sockaddr_in();
|
|
return System::connect(fd, bit_cast<struct sockaddr*>(&addr), sizeof(addr));
|
|
}
|
|
|
|
ErrorOr<Bytes> PosixSocketHelper::read(Bytes buffer, int flags)
|
|
{
|
|
if (!is_open()) {
|
|
return Error::from_errno(ENOTCONN);
|
|
}
|
|
|
|
ssize_t nread = TRY(System::recv(m_fd, buffer.data(), buffer.size(), flags));
|
|
m_last_read_was_eof = nread == 0;
|
|
|
|
// If a socket read is EOF, then no more data can be read from it because
|
|
// the protocol has disconnected. In this case, we can just disable the
|
|
// notifier if we have one.
|
|
if (m_last_read_was_eof && m_notifier)
|
|
m_notifier->set_enabled(false);
|
|
|
|
return buffer.trim(nread);
|
|
}
|
|
|
|
ErrorOr<size_t> PosixSocketHelper::write(ReadonlyBytes buffer, int flags)
|
|
{
|
|
if (!is_open()) {
|
|
return Error::from_errno(ENOTCONN);
|
|
}
|
|
|
|
return TRY(System::send(m_fd, buffer.data(), buffer.size(), flags));
|
|
}
|
|
|
|
void PosixSocketHelper::close()
|
|
{
|
|
if (!is_open()) {
|
|
return;
|
|
}
|
|
|
|
if (m_notifier)
|
|
m_notifier->set_enabled(false);
|
|
|
|
ErrorOr<void> result;
|
|
do {
|
|
result = System::close(m_fd);
|
|
} while (result.is_error() && result.error().code() == EINTR);
|
|
|
|
VERIFY(!result.is_error());
|
|
m_fd = -1;
|
|
}
|
|
|
|
ErrorOr<bool> PosixSocketHelper::can_read_without_blocking(int timeout) const
|
|
{
|
|
struct pollfd the_fd = { .fd = m_fd, .events = POLLIN, .revents = 0 };
|
|
|
|
ErrorOr<int> result { 0 };
|
|
do {
|
|
result = Core::System::poll({ &the_fd, 1 }, timeout);
|
|
} while (result.is_error() && result.error().code() == EINTR);
|
|
|
|
if (result.is_error())
|
|
return result.release_error();
|
|
|
|
return (the_fd.revents & POLLIN) > 0;
|
|
}
|
|
|
|
ErrorOr<void> PosixSocketHelper::set_blocking(bool enabled)
|
|
{
|
|
int value = enabled ? 0 : 1;
|
|
return System::ioctl(m_fd, FIONBIO, &value);
|
|
}
|
|
|
|
ErrorOr<void> PosixSocketHelper::set_close_on_exec(bool enabled)
|
|
{
|
|
int flags = TRY(System::fcntl(m_fd, F_GETFD));
|
|
|
|
if (enabled)
|
|
flags |= FD_CLOEXEC;
|
|
else
|
|
flags &= ~FD_CLOEXEC;
|
|
|
|
TRY(System::fcntl(m_fd, F_SETFD, flags));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> PosixSocketHelper::set_receive_timeout(Duration timeout)
|
|
{
|
|
auto timeout_spec = timeout.to_timespec();
|
|
return System::setsockopt(m_fd, SOL_SOCKET, SO_RCVTIMEO, &timeout_spec, sizeof(timeout_spec));
|
|
}
|
|
|
|
void PosixSocketHelper::setup_notifier()
|
|
{
|
|
if (!m_notifier)
|
|
m_notifier = Core::Notifier::construct(m_fd, Core::Notifier::Type::Read);
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<TCPSocket>> TCPSocket::connect(DeprecatedString const& host, u16 port)
|
|
{
|
|
auto ip_address = TRY(resolve_host(host, SocketType::Stream));
|
|
return connect(SocketAddress { ip_address, port });
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<TCPSocket>> TCPSocket::connect(SocketAddress const& address)
|
|
{
|
|
auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) TCPSocket()));
|
|
|
|
auto fd = TRY(create_fd(SocketDomain::Inet, SocketType::Stream));
|
|
socket->m_helper.set_fd(fd);
|
|
|
|
TRY(connect_inet(fd, address));
|
|
|
|
socket->setup_notifier();
|
|
return socket;
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<TCPSocket>> TCPSocket::adopt_fd(int fd)
|
|
{
|
|
if (fd < 0) {
|
|
return Error::from_errno(EBADF);
|
|
}
|
|
|
|
auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) TCPSocket()));
|
|
socket->m_helper.set_fd(fd);
|
|
socket->setup_notifier();
|
|
return socket;
|
|
}
|
|
|
|
ErrorOr<size_t> PosixSocketHelper::pending_bytes() const
|
|
{
|
|
if (!is_open()) {
|
|
return Error::from_errno(ENOTCONN);
|
|
}
|
|
|
|
int value;
|
|
TRY(System::ioctl(m_fd, FIONREAD, &value));
|
|
return static_cast<size_t>(value);
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(DeprecatedString const& host, u16 port, Optional<Duration> timeout)
|
|
{
|
|
auto ip_address = TRY(resolve_host(host, SocketType::Datagram));
|
|
return connect(SocketAddress { ip_address, port }, timeout);
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(SocketAddress const& address, Optional<Duration> timeout)
|
|
{
|
|
auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) UDPSocket()));
|
|
|
|
auto fd = TRY(create_fd(SocketDomain::Inet, SocketType::Datagram));
|
|
socket->m_helper.set_fd(fd);
|
|
if (timeout.has_value()) {
|
|
TRY(socket->m_helper.set_receive_timeout(timeout.value()));
|
|
}
|
|
|
|
TRY(connect_inet(fd, address));
|
|
|
|
socket->setup_notifier();
|
|
return socket;
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<LocalSocket>> LocalSocket::connect(DeprecatedString const& path, PreventSIGPIPE prevent_sigpipe)
|
|
{
|
|
auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) LocalSocket(prevent_sigpipe)));
|
|
|
|
auto fd = TRY(create_fd(SocketDomain::Local, SocketType::Stream));
|
|
socket->m_helper.set_fd(fd);
|
|
|
|
TRY(connect_local(fd, path));
|
|
|
|
socket->setup_notifier();
|
|
return socket;
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<LocalSocket>> LocalSocket::adopt_fd(int fd, PreventSIGPIPE prevent_sigpipe)
|
|
{
|
|
if (fd < 0) {
|
|
return Error::from_errno(EBADF);
|
|
}
|
|
|
|
auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) LocalSocket(prevent_sigpipe)));
|
|
socket->m_helper.set_fd(fd);
|
|
socket->setup_notifier();
|
|
return socket;
|
|
}
|
|
|
|
ErrorOr<int> LocalSocket::receive_fd(int flags)
|
|
{
|
|
#if defined(AK_OS_SERENITY)
|
|
return Core::System::recvfd(m_helper.fd(), flags);
|
|
#elif defined(AK_OS_LINUX) || defined(AK_OS_BSD_GENERIC)
|
|
union {
|
|
struct cmsghdr cmsghdr;
|
|
char control[CMSG_SPACE(sizeof(int))];
|
|
} cmsgu {};
|
|
char c = 0;
|
|
struct iovec iov {
|
|
.iov_base = &c,
|
|
.iov_len = 1,
|
|
};
|
|
struct msghdr msg = {};
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = cmsgu.control;
|
|
msg.msg_controllen = sizeof(cmsgu.control);
|
|
TRY(Core::System::recvmsg(m_helper.fd(), &msg, 0));
|
|
|
|
struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
|
|
if (!cmsg || cmsg->cmsg_len != CMSG_LEN(sizeof(int)))
|
|
return Error::from_string_literal("Malformed message when receiving file descriptor");
|
|
|
|
VERIFY(cmsg->cmsg_level == SOL_SOCKET);
|
|
VERIFY(cmsg->cmsg_type == SCM_RIGHTS);
|
|
int fd = *((int*)CMSG_DATA(cmsg));
|
|
|
|
if (flags & O_CLOEXEC) {
|
|
auto fd_flags = TRY(Core::System::fcntl(fd, F_GETFD));
|
|
TRY(Core::System::fcntl(fd, F_SETFD, fd_flags | FD_CLOEXEC));
|
|
}
|
|
|
|
return fd;
|
|
#else
|
|
(void)flags;
|
|
return Error::from_string_literal("File descriptor passing not supported on this platform");
|
|
#endif
|
|
}
|
|
|
|
ErrorOr<void> LocalSocket::send_fd(int fd)
|
|
{
|
|
#if defined(AK_OS_SERENITY)
|
|
return Core::System::sendfd(m_helper.fd(), fd);
|
|
#elif defined(AK_OS_LINUX) || defined(AK_OS_BSD_GENERIC)
|
|
char c = 'F';
|
|
struct iovec iov {
|
|
.iov_base = &c,
|
|
.iov_len = sizeof(c)
|
|
};
|
|
|
|
union {
|
|
struct cmsghdr cmsghdr;
|
|
char control[CMSG_SPACE(sizeof(int))];
|
|
} cmsgu {};
|
|
|
|
struct msghdr msg = {};
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = cmsgu.control;
|
|
msg.msg_controllen = sizeof(cmsgu.control);
|
|
|
|
struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
|
|
cmsg->cmsg_len = CMSG_LEN(sizeof(int));
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
cmsg->cmsg_type = SCM_RIGHTS;
|
|
|
|
*((int*)CMSG_DATA(cmsg)) = fd;
|
|
|
|
TRY(Core::System::sendmsg(m_helper.fd(), &msg, 0));
|
|
return {};
|
|
#else
|
|
(void)fd;
|
|
return Error::from_string_literal("File descriptor passing not supported on this platform");
|
|
#endif
|
|
}
|
|
|
|
ErrorOr<pid_t> LocalSocket::peer_pid() const
|
|
{
|
|
#ifdef AK_OS_MACOS
|
|
pid_t pid;
|
|
socklen_t pid_size = sizeof(pid);
|
|
#elif defined(AK_OS_FREEBSD)
|
|
struct xucred creds = {};
|
|
socklen_t creds_size = sizeof(creds);
|
|
#elif defined(AK_OS_OPENBSD)
|
|
struct sockpeercred creds = {};
|
|
socklen_t creds_size = sizeof(creds);
|
|
#elif defined(AK_OS_NETBSD)
|
|
struct sockcred creds = {};
|
|
socklen_t creds_size = sizeof(creds);
|
|
#elif defined(AK_OS_SOLARIS)
|
|
ucred_t* creds = NULL;
|
|
socklen_t creds_size = sizeof(creds);
|
|
#else
|
|
struct ucred creds = {};
|
|
socklen_t creds_size = sizeof(creds);
|
|
#endif
|
|
|
|
#ifdef AK_OS_MACOS
|
|
TRY(System::getsockopt(m_helper.fd(), SOL_LOCAL, LOCAL_PEERPID, &pid, &pid_size));
|
|
return pid;
|
|
#elif defined(AK_OS_FREEBSD)
|
|
TRY(System::getsockopt(m_helper.fd(), SOL_LOCAL, LOCAL_PEERCRED, &creds, &creds_size));
|
|
return creds.cr_pid;
|
|
#elif defined(AK_OS_NETBSD)
|
|
TRY(System::getsockopt(m_helper.fd(), SOL_SOCKET, SCM_CREDS, &creds, &creds_size));
|
|
return creds.sc_pid;
|
|
#elif defined(AK_OS_SOLARIS)
|
|
TRY(System::getsockopt(m_helper.fd(), SOL_SOCKET, SO_RECVUCRED, &creds, &creds_size));
|
|
return ucred_getpid(creds);
|
|
#else
|
|
TRY(System::getsockopt(m_helper.fd(), SOL_SOCKET, SO_PEERCRED, &creds, &creds_size));
|
|
return creds.pid;
|
|
#endif
|
|
}
|
|
|
|
ErrorOr<Bytes> LocalSocket::read_without_waiting(Bytes buffer)
|
|
{
|
|
return m_helper.read(buffer, MSG_DONTWAIT);
|
|
}
|
|
|
|
Optional<int> LocalSocket::fd() const
|
|
{
|
|
if (!is_open())
|
|
return {};
|
|
return m_helper.fd();
|
|
}
|
|
|
|
ErrorOr<int> LocalSocket::release_fd()
|
|
{
|
|
if (!is_open()) {
|
|
return Error::from_errno(ENOTCONN);
|
|
}
|
|
|
|
auto fd = m_helper.fd();
|
|
m_helper.set_fd(-1);
|
|
return fd;
|
|
}
|
|
|
|
}
|