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sys_net_helpers.cpp
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sys_net_helpers.cpp
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#include "stdafx.h"
#include "Emu/IdManager.h"
#include "Emu/Cell/PPUThread.h"
#include "lv2_socket.h"
#include "sys_net_helpers.h"
LOG_CHANNEL(sys_net);
int get_native_error()
{
int native_error;
#ifdef _WIN32
native_error = WSAGetLastError();
#else
native_error = errno;
#endif
return native_error;
}
sys_net_error get_last_error(bool is_blocking, int native_error)
{
// Convert the error code for socket functions to a one for sys_net
sys_net_error result{};
const char* name{};
if (!native_error)
{
native_error = get_native_error();
}
#ifdef _WIN32
#define ERROR_CASE(error) \
case WSA##error: \
result = SYS_NET_##error; \
name = #error; \
break;
#else
#define ERROR_CASE(error) \
case error: \
result = SYS_NET_##error; \
name = #error; \
break;
#endif
switch (native_error)
{
#ifndef _WIN32
ERROR_CASE(ENOENT);
ERROR_CASE(ENOMEM);
ERROR_CASE(EBUSY);
ERROR_CASE(ENOSPC);
ERROR_CASE(EPIPE);
#endif
// TODO: We don't currently support EFAULT or EINTR
// ERROR_CASE(EFAULT);
// ERROR_CASE(EINTR);
ERROR_CASE(EBADF);
ERROR_CASE(EACCES);
ERROR_CASE(EINVAL);
ERROR_CASE(EMFILE);
ERROR_CASE(EWOULDBLOCK);
ERROR_CASE(EINPROGRESS);
ERROR_CASE(EALREADY);
ERROR_CASE(EDESTADDRREQ);
ERROR_CASE(EMSGSIZE);
ERROR_CASE(EPROTOTYPE);
ERROR_CASE(ENOPROTOOPT);
ERROR_CASE(EPROTONOSUPPORT);
ERROR_CASE(EOPNOTSUPP);
ERROR_CASE(EPFNOSUPPORT);
ERROR_CASE(EAFNOSUPPORT);
ERROR_CASE(EADDRINUSE);
ERROR_CASE(EADDRNOTAVAIL);
ERROR_CASE(ENETDOWN);
ERROR_CASE(ENETUNREACH);
ERROR_CASE(ECONNABORTED);
ERROR_CASE(ECONNRESET);
ERROR_CASE(ENOBUFS);
ERROR_CASE(EISCONN);
ERROR_CASE(ENOTCONN);
ERROR_CASE(ESHUTDOWN);
ERROR_CASE(ETOOMANYREFS);
ERROR_CASE(ETIMEDOUT);
ERROR_CASE(ECONNREFUSED);
ERROR_CASE(EHOSTDOWN);
ERROR_CASE(EHOSTUNREACH);
default:
fmt::throw_exception("sys_net get_last_error(is_blocking=%d, native_error=%d): Unknown/illegal socket error", is_blocking, native_error);
}
if (name && result != SYS_NET_EWOULDBLOCK && result != SYS_NET_EINPROGRESS)
{
sys_net.error("Socket error %s", name);
}
if (is_blocking && result == SYS_NET_EWOULDBLOCK)
{
return {};
}
if (is_blocking && result == SYS_NET_EINPROGRESS)
{
return {};
}
return result;
#undef ERROR_CASE
}
sys_net_sockaddr native_addr_to_sys_net_addr(const ::sockaddr_storage& native_addr)
{
ensure(native_addr.ss_family == AF_INET || native_addr.ss_family == AF_UNSPEC);
sys_net_sockaddr sn_addr;
sys_net_sockaddr_in* paddr = reinterpret_cast<sys_net_sockaddr_in*>(&sn_addr);
paddr->sin_len = sizeof(sys_net_sockaddr_in);
paddr->sin_family = SYS_NET_AF_INET;
paddr->sin_port = std::bit_cast<be_t<u16>, u16>(reinterpret_cast<const sockaddr_in*>(&native_addr)->sin_port);
paddr->sin_addr = std::bit_cast<be_t<u32>, u32>(reinterpret_cast<const sockaddr_in*>(&native_addr)->sin_addr.s_addr);
paddr->sin_zero = 0;
return sn_addr;
}
::sockaddr_in sys_net_addr_to_native_addr(const sys_net_sockaddr& sn_addr)
{
ensure(sn_addr.sa_family == SYS_NET_AF_INET);
const sys_net_sockaddr_in* psa_in = reinterpret_cast<const sys_net_sockaddr_in*>(&sn_addr);
::sockaddr_in native_addr{};
native_addr.sin_family = AF_INET;
native_addr.sin_port = std::bit_cast<u16>(psa_in->sin_port);
native_addr.sin_addr.s_addr = std::bit_cast<u32>(psa_in->sin_addr);
#ifdef _WIN32
// Windows doesn't support sending packets to 0.0.0.0 but it works on unixes, send to 127.0.0.1 instead
if (native_addr.sin_addr.s_addr == 0x00000000)
{
sys_net.warning("[Native] Redirected 0.0.0.0 to 127.0.0.1");
native_addr.sin_addr.s_addr = std::bit_cast<u32, be_t<u32>>(0x7F000001);
}
#endif
return native_addr;
}
bool is_ip_public_address(const ::sockaddr_in& addr)
{
const u8 *ip = reinterpret_cast<const u8 *>(&addr.sin_addr.s_addr);
if ((ip[0] == 10) ||
(ip[0] == 127) ||
(ip[0] == 172 && (ip[1] >= 16 && ip[1] <= 31)) ||
(ip[0] == 192 && ip[1] == 168))
{
return false;
}
return true;
}
s32 network_clear_queue(ppu_thread& ppu)
{
s32 cleared = 0;
idm::select<lv2_socket>([&](u32, lv2_socket& sock)
{
cleared += sock.clear_queue(&ppu);
});
return cleared;
}
#ifdef _WIN32
// Workaround function for WSAPoll not reporting failed connections
void windows_poll(pollfd* fds, unsigned long nfds, int timeout, bool* connecting)
{
ensure(connecting);
// Don't call WSAPoll with zero nfds (errors 10022 or 10038)
if (std::none_of(fds, fds + nfds, [](pollfd& pfd)
{
return pfd.fd != INVALID_SOCKET;
}))
{
if (timeout > 0)
{
Sleep(timeout);
}
return;
}
int r = ::WSAPoll(fds, nfds, timeout);
if (r == SOCKET_ERROR)
{
sys_net.error("WSAPoll failed: %u", WSAGetLastError());
return;
}
for (unsigned long i = 0; i < nfds; i++)
{
if (connecting[i])
{
if (!fds[i].revents)
{
int error = 0;
socklen_t intlen = sizeof(error);
if (getsockopt(fds[i].fd, SOL_SOCKET, SO_ERROR, reinterpret_cast<char*>(&error), &intlen) == -1 || error != 0)
{
// Connection silently failed
connecting[i] = false;
fds[i].revents = POLLERR | POLLHUP | (fds[i].events & (POLLIN | POLLOUT));
}
}
else
{
connecting[i] = false;
}
}
}
}
#endif