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RedHotRoast-ios/HybridCLRData/LocalIl2CppData-OSXEditor/il2cpp/libil2cpp/os/Win32/SocketImpl.cpp
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2026-07-17 14:03:00 +08:00

2430 lines
67 KiB
C++

#include "il2cpp-config.h"
#if !IL2CPP_USE_GENERIC_SOCKET_IMPL && IL2CPP_TARGET_WINDOWS && IL2CPP_SUPPORT_SOCKETS
#include <time.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include "WindowsHelpers.h"
#include <WinSock2.h>
#include <WS2tcpip.h>
#if !IL2CPP_TARGET_XBOXONE
#include <mswsock.h>
#endif
#include "os/Error.h"
#include "os/Socket.h"
#include "os/ErrorCodes.h"
#include "os/Win32/SocketImpl.h"
#include "utils/Il2CppError.h"
#include "utils/StringUtils.h"
#include "utils/Memory.h"
typedef int socklen_t;
namespace il2cpp
{
namespace os
{
static bool is_loopback(int32_t family, uint8_t *addr)
{
if (family == AF_INET)
return addr[0] == 127;
#if IL2CPP_SUPPORT_IPV6
else if (family == AF_INET6)
return (IN6_IS_ADDR_LOOPBACK((struct in6_addr *)addr));
#endif
return false;
}
static struct in_addr *get_local_ips(int32_t family, int32_t *nips)
{
*nips = 0;
return 0;
}
static bool hostent_get_info(struct hostent *he, std::string &name, std::vector<std::string> &aliases, std::vector<std::string> &addresses)
{
if (he == NULL)
return false;
if (he->h_length != 4 || he->h_addrtype != AF_INET)
return false;
name.assign(he->h_name);
for (int32_t i = 0; he->h_aliases[i] != NULL; ++i)
aliases.push_back(he->h_aliases[i]);
if (he->h_addrtype == AF_INET)
{
struct in_addr addr = {0};
for (int32_t i = 0; he->h_addr_list[i] != NULL; ++i)
{
addr.s_addr = *(u_long*)he->h_addr_list[i];
addresses.push_back(inet_ntoa(addr));
}
}
return true;
}
static bool hostent_get_info_with_local_ips(struct hostent *he, std::string &name, std::vector<std::string> &aliases, std::vector<std::string> &addresses)
{
int32_t i = 0;
int32_t nlocal_in = 0;
if (he != NULL)
{
if (he->h_length != 4 || he->h_addrtype != AF_INET)
return false;
name.assign(he->h_name);
for (int32_t i = 0; he->h_aliases[i] != NULL; ++i)
aliases.push_back(he->h_aliases[i]);
}
struct in_addr *local_in = get_local_ips(AF_INET, &nlocal_in);
if (nlocal_in)
{
for (int32_t i = 0; i < nlocal_in; ++i)
addresses.push_back(inet_ntoa(local_in[i]));
free(local_in);
}
else if (he == NULL)
{
// If requesting "" and there are no other interfaces up, MS returns 127.0.0.1
addresses.push_back("127.0.0.1");
return true;
}
if (nlocal_in == 0 && he != NULL)
{
if (he->h_addrtype == AF_INET)
{
struct in_addr addr = {0};
for (int32_t i = 0; he->h_addr_list[i] != NULL; ++i)
{
addr.s_addr = *(u_long*)he->h_addr_list[i];
addresses.push_back(inet_ntoa(addr));
}
}
}
return true;
}
static int32_t convert_socket_flags(os::SocketFlags flags)
{
int32_t c_flags = 0;
if (flags)
{
// Check if contains invalid flag values
if (flags & ~(os::kSocketFlagsOutOfBand | os::kSocketFlagsMaxIOVectorLength | os::kSocketFlagsPeek | os::kSocketFlagsDontRoute | os::kSocketFlagsPartial))
{
return -1;
}
if (flags & os::kSocketFlagsOutOfBand)
c_flags |= MSG_OOB;
if (flags & os::kSocketFlagsPeek)
c_flags |= MSG_PEEK;
if (flags & os::kSocketFlagsDontRoute)
c_flags |= MSG_DONTROUTE;
// Ignore Partial - see bug 349688. Don't return -1, because
// according to the comment in that bug ms runtime doesn't for
// UDP sockets (this means we will silently ignore it for TCP
// too)
#ifdef MSG_MORE
if (flags & os::kSocketFlagsPartial)
c_flags |= MSG_MORE;
#endif
}
return c_flags;
}
#if IL2CPP_SUPPORT_IPV6
static void AddrinfoGetAddresses(struct addrinfo *info, std::string& name, bool add_local_ips,
std::vector<std::string> &addr_list)
{
if (add_local_ips)
{
int nlocal_in = 0;
int nlocal_in6 = 0;
in_addr* local_in = (struct in_addr *)get_local_ips(AF_INET, &nlocal_in);
in6_addr* local_in6 = (struct in6_addr *)get_local_ips(AF_INET6, &nlocal_in6);
if (nlocal_in || nlocal_in6)
{
if (nlocal_in)
{
for (int i = 0; i < nlocal_in; i++)
{
char addr[16];
inet_ntop(AF_INET, &local_in[i], addr, sizeof(addr));
addr_list.push_back(std::string(addr));
}
}
if (nlocal_in6)
{
for (int i = 0; i < nlocal_in6; i++)
{
char addr[48];
const char* ret = inet_ntop(AF_INET6, &local_in6[i], addr, sizeof(addr));
if (ret != NULL)
addr_list.push_back(std::string(addr));
}
}
}
free(local_in);
free(local_in6);
}
bool nameSet = false;
for (addrinfo* ai = info; ai != NULL; ai = ai->ai_next)
{
const char *ret;
char buffer[48]; /* Max. size for IPv6 */
if ((ai->ai_family != PF_INET) && (ai->ai_family != PF_INET6))
continue;
if (ai->ai_family == PF_INET)
ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr), buffer, 16);
else
ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr), buffer, 48);
if (ret)
addr_list.push_back(std::string(buffer));
else
addr_list.push_back(std::string());
if (!nameSet)
{
if (ai->ai_canonname != NULL)
name = std::string(ai->ai_canonname);
else
name = std::string();
nameSet = true;
}
}
}
WaitStatus GetAddressInfo(const char* hostname, bool add_local_ips, std::string &name, std::vector<std::string> &addr_list)
{
addrinfo *info = NULL;
addrinfo hints;
memset(&hints, 0, sizeof(hints));
// Here Mono inspects the ipv4Supported and ipv6Supported properties on the managed Socket class.
// This seems to be unnecessary though, as we can use PF_UNSPEC in all cases, and getaddrinfo works.
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
if (getaddrinfo(hostname, NULL, &hints, &info) == -1)
return kWaitStatusFailure;
AddrinfoGetAddresses(info, name, add_local_ips, addr_list);
if (info)
freeaddrinfo(info);
if (name.empty())
name.assign(hostname);
return kWaitStatusSuccess;
}
#endif
static WaitStatus GetHostByAddrIPv4(const std::string &address, std::string &name, std::vector<std::string> &aliases, std::vector<std::string> &addr_list)
{
struct in_addr inaddr;
if (inet_pton(AF_INET, address.c_str(), &inaddr) <= 0)
return kWaitStatusFailure;
struct hostent *he = gethostbyaddr((char*)&inaddr, sizeof(inaddr), AF_INET);
if (he == NULL)
{
name = address;
addr_list.push_back(name);
return kWaitStatusSuccess;
}
return hostent_get_info(he, name, aliases, addr_list)
? kWaitStatusSuccess
: kWaitStatusFailure;
}
WaitStatus SocketImpl::GetHostByAddr(const std::string &address, std::string &name, std::vector<std::string> &aliases, std::vector<std::string> &addr_list)
{
#if IL2CPP_SUPPORT_IPV6
struct sockaddr_in saddr;
struct sockaddr_in6 saddr6;
int32_t family;
char hostname[1024] = { 0 };
int flags = 0;
if (inet_pton(AF_INET, address.c_str(), &saddr.sin_addr) <= 0)
{
/* Maybe an ipv6 address */
if (inet_pton(AF_INET6, address.c_str(), &saddr6.sin6_addr) <= 0)
{
return kWaitStatusFailure;
}
else
{
family = AF_INET6;
saddr6.sin6_family = AF_INET6;
}
}
else
{
family = AF_INET;
saddr.sin_family = AF_INET;
}
if (family == AF_INET)
{
return GetHostByAddrIPv4(address, name, aliases, addr_list);
}
else if (family == AF_INET6)
{
#if HAVE_SOCKADDR_IN6_SIN_LEN
saddr6.sin6_len = sizeof(saddr6);
#endif
if (getnameinfo((struct sockaddr*)&saddr6, sizeof(saddr6),
hostname, sizeof(hostname), NULL, 0,
flags) != 0)
{
return kWaitStatusFailure;
}
}
return GetAddressInfo(hostname, true, name, addr_list);
#else
return GetHostByAddrIPv4(address, name, aliases, addr_list);
#endif
}
WaitStatus SocketImpl::GetHostByName(const std::string &host, std::string &name, std::vector<std::string> &aliases, std::vector<std::string> &addresses)
{
char this_hostname[256] = {0};
const char *hostname = host.c_str();
bool add_local_ips = (*hostname == '\0');
if (!add_local_ips && gethostname(this_hostname, sizeof(this_hostname)) != -1)
{
if (!strcmp(hostname, this_hostname))
add_local_ips = true;
}
#if IL2CPP_SUPPORT_IPV6
return GetAddressInfo(hostname, add_local_ips, name, addresses);
#else
struct hostent *he = NULL;
if (*hostname)
he = gethostbyname(hostname);
if (*hostname && he == NULL)
return kWaitStatusFailure;
return (add_local_ips
? hostent_get_info_with_local_ips(he, name, aliases, addresses)
: hostent_get_info(he, name, aliases, addresses))
? kWaitStatusSuccess
: kWaitStatusFailure;
#endif
}
WaitStatus SocketImpl::GetHostByName(const std::string &host, std::string &name, int32_t &family, std::vector<std::string> &aliases, std::vector<void*> &addr_list, int32_t &addr_size)
{
std::vector<std::string> addresses;
WaitStatus result = GetHostByName(host, name, aliases, addresses);
addr_size = sizeof(in_addr);
family = AF_INET;
for (std::vector<std::string>::iterator it = addresses.begin(); it != addresses.end(); ++it)
{
void* addressLocation = il2cpp::utils::Memory::Malloc(addr_size);
in_addr address;
if (inet_pton(family, it->c_str(), &address))
{
memcpy(addressLocation, &address.S_un.S_addr, addr_size);
addr_list.push_back(addressLocation);
}
}
return result;
}
void SocketImpl::Startup()
{
WSADATA wsadata;
const int32_t ret = WSAStartup(MAKEWORD(2, 0), &wsadata);
if (ret != 0)
{
exit(-1);
}
}
void SocketImpl::Cleanup()
{
WSACleanup();
}
WaitStatus SocketImpl::GetHostName(std::string &name)
{
char hostname[256];
int32_t ret = gethostname(hostname, sizeof(hostname));
if (ret == -1)
return kWaitStatusFailure;
name.assign(hostname);
return kWaitStatusSuccess;
}
SocketImpl::SocketImpl(ThreadStatusCallback thread_status_callback)
: _is_valid(false)
, _fd(-1)
, _domain(-1)
, _type(-1)
, _protocol(-1)
, _saved_error(kErrorCodeSuccess)
, _still_readable(0)
, _thread_status_callback(thread_status_callback)
{
}
SocketImpl::~SocketImpl()
{
}
static int32_t convert_address_family(AddressFamily family)
{
switch (family)
{
case kAddressFamilyUnspecified:
return AF_UNSPEC;
// NOTE(gab): not supported on Windows
//case kAddressFamilyUnix:
// return AF_UNIX;
case kAddressFamilyInterNetwork:
return AF_INET;
case kAddressFamilyIpx:
return AF_IPX;
case kAddressFamilySna:
return AF_SNA;
case kAddressFamilyDecNet:
return AF_DECnet;
case kAddressFamilyAppleTalk:
return AF_APPLETALK;
#if IL2CPP_SUPPORT_IPV6
case kAddressFamilyInterNetworkV6:
return AF_INET6;
#endif
#ifdef AF_IRDA
case kAddressFamilyIrda:
return AF_IRDA;
#endif
default:
break;
}
return -1;
}
static int32_t convert_socket_type(SocketType type)
{
switch (type)
{
case kSocketTypeStream:
return SOCK_STREAM;
case kSocketTypeDgram:
return SOCK_DGRAM;
case kSocketTypeRaw:
return SOCK_RAW;
case kSocketTypeRdm:
return SOCK_RDM;
case kSocketTypeSeqpacket:
return SOCK_SEQPACKET;
default:
break;
}
return -1;
}
static int32_t convert_socket_protocol(ProtocolType protocol)
{
switch (protocol)
{
case kProtocolTypeIP:
case kProtocolTypeIPv6:
case kProtocolTypeIcmp:
case kProtocolTypeIgmp:
case kProtocolTypeGgp:
case kProtocolTypeTcp:
case kProtocolTypePup:
case kProtocolTypeUdp:
case kProtocolTypeIdp:
case kProtocolTypeIcmpV6:
// In this case the enum values map exactly.
return (int32_t)protocol;
default:
break;
}
// Everything else in unsupported and unexpected
return -1;
}
static int SocketExceptionFilter(unsigned int code)
{
// Sometimes, we call the socket functions and close the socket right after,
// and in some rare cases, it throws EXCEPTION_INVALID_HANDLE SEH exception
// rather than returning an error code. Although this is undocumented on MSDN,
// it causes a crash just because it thinks we gave it an invalid handle.
// We guard against it by wrapping every socket call with __try/__except
if (code == EXCEPTION_INVALID_HANDLE)
return EXCEPTION_CONTINUE_EXECUTION;
return EXCEPTION_CONTINUE_SEARCH;
}
WaitStatus SocketImpl::Create(AddressFamily family, SocketType type, ProtocolType protocol)
{
_fd = -1;
_is_valid = false;
_still_readable = 1;
_domain = convert_address_family(family);
_type = convert_socket_type(type);
_protocol = convert_socket_protocol(protocol);
IL2CPP_ASSERT(_type != -1 && "Unsupported socket type");
IL2CPP_ASSERT(_domain != -1 && "Unsupported address family");
IL2CPP_ASSERT(_protocol != -1 && "Unsupported protocol type");
_fd = socket(_domain, _type, _protocol);
if (_fd == -1 && _domain == AF_INET && _type == SOCK_RAW && _protocol == 0)
{
// Retry with protocol == 4 (see bug #54565)
_protocol = 4;
_fd = socket(AF_INET, SOCK_RAW, 4);
}
if (_fd == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
_is_valid = true;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Create(SocketDescriptor fd, int32_t family, int32_t type, int32_t protocol)
{
_fd = fd;
_is_valid = (fd != -1);
_still_readable = 1;
_domain = family;
_type = type;
_protocol = protocol;
IL2CPP_ASSERT(_type != -1 && "Unsupported socket type");
IL2CPP_ASSERT(_domain != -1 && "Unsupported address family");
IL2CPP_ASSERT(_protocol != -1 && "Unsupported protocol type");
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Close()
{
_saved_error = kErrorCodeSuccess;
SOCKET fd = (SOCKET)_fd;
if (_is_valid && fd != -1)
{
if (closesocket(fd) == -1)
StoreLastError();
}
_fd = -1;
_is_valid = false;
_still_readable = 0;
_domain = -1;
_type = -1;
_protocol = -1;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::SetBlocking(bool blocking)
{
/*
* block == TRUE/FALSE means we will block/not block.
* But the ioctlsocket call takes TRUE/FALSE for non-block/block
*/
u_long ioctl_socket_blocking = (u_long) !blocking;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = -1;
__try
{
ret = ioctlsocket(fd, FIONBIO, &ioctl_socket_blocking);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == SOCKET_ERROR)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
ErrorCode SocketImpl::GetLastError() const
{
return _saved_error;
}
void SocketImpl::StoreLastError()
{
const ErrorCode error = (ErrorCode)WSAGetLastError();
Error::SetLastError(error);
_saved_error = error;
}
void SocketImpl::StoreLastError(int32_t error_no)
{
const ErrorCode error = (ErrorCode)error_no;
Error::SetLastError(error);
_saved_error = error;
}
static void sockaddr_from_address(uint32_t address, uint16_t port, struct sockaddr *sa, socklen_t *sa_size)
{
struct sockaddr_in sa_in = {0};
sa_in.sin_family = AF_INET;
sa_in.sin_port = port;
sa_in.sin_addr.s_addr = address;
*sa_size = sizeof(struct sockaddr_in);
*sa = *((struct sockaddr*)&sa_in);
}
#if IL2CPP_SUPPORT_IPV6
static void sockaddr_from_address(uint8_t address[ipv6AddressSize], uint32_t scope, uint16_t port, sockaddr_in6* sa, socklen_t *sa_size)
{
sa->sin6_family = AF_INET6;
sa->sin6_port = port;
memcpy(&sa->sin6_addr, &address[0], 16);
sa->sin6_scope_id = scope;
*sa_size = sizeof(struct sockaddr_in6);
}
#endif
static AddressFamily convert_define_to_address_family(int32_t family)
{
switch (family)
{
case AF_UNSPEC:
return kAddressFamilyUnspecified;
case AF_UNIX:
return kAddressFamilyUnix;
case AF_INET:
return kAddressFamilyInterNetwork;
#ifdef AF_IPX
case AF_IPX:
return kAddressFamilyIpx;
#endif
#ifdef AF_SNA
case AF_SNA:
return kAddressFamilySna;
#endif
#ifdef AF_DECnet
case AF_DECnet:
return kAddressFamilyDecNet;
#endif
#ifdef AF_APPLETALK
case AF_APPLETALK:
return kAddressFamilyAppleTalk;
#endif
#ifdef AF_INET6
case AF_INET6:
return kAddressFamilyInterNetworkV6;
#endif
#ifdef AF_IRDA
case AF_IRDA:
return kAddressFamilyIrda;
#endif
default:
break;
}
return kAddressFamilyError;
}
static bool socketaddr_to_endpoint_info(const struct sockaddr *address, socklen_t address_len, EndPointInfo &info)
{
info.family = convert_define_to_address_family(address->sa_family);
if (info.family == os::kAddressFamilyInterNetwork)
{
const struct sockaddr_in *address_in = (const struct sockaddr_in *)address;
info.data.inet.port = ntohs(address_in->sin_port);
info.data.inet.address = ntohl(address_in->sin_addr.s_addr);
return true;
}
// NOTE(gab): kAddressFamilyUnix not supported on Windows
//if (info.family == os::kAddressFamilyUnix)
//{
// for (int32_t i = 0; i < address_len; i++)
// info.data.path[i] = address->sa_data[i];
// return true;
//}
#if IL2CPP_SUPPORT_IPV6
if (info.family == os::kAddressFamilyInterNetworkV6)
{
const struct sockaddr_in6 *address_in = (const struct sockaddr_in6 *)address;
uint16_t port = ntohs(address_in->sin6_port);
info.data.raw[2] = (port >> 8) & 0xff;
info.data.raw[3] = port & 0xff;
for (int i = 0; i < 16; i++)
info.data.raw[i + 8] = address_in->sin6_addr.s6_addr[i];
info.data.raw[24] = address_in->sin6_scope_id & 0xff;
info.data.raw[25] = (address_in->sin6_scope_id >> 8) & 0xff;
info.data.raw[26] = (address_in->sin6_scope_id >> 16) & 0xff;
info.data.raw[27] = (address_in->sin6_scope_id >> 24) & 0xff;
return true;
}
#endif
return false;
}
WaitStatus SocketImpl::Bind(const char *path)
{
// NOTE(gab): not supported on Windows.
return kWaitStatusFailure;
}
WaitStatus SocketImpl::Bind(const char *address, uint16_t port)
{
struct sockaddr sa = {0};
socklen_t sa_size = 0;
sockaddr_from_address(inet_addr(address), htons(port), &sa, &sa_size);
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int bindResult = -1;
__try
{
bindResult = bind(fd, &sa, sa_size);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (bindResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Bind(uint32_t address, uint16_t port)
{
struct sockaddr sa = {0};
socklen_t sa_size = 0;
sockaddr_from_address(htonl(address), htons(port), &sa, &sa_size);
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int bindResult = -1;
__try
{
bindResult = bind(fd, &sa, sa_size);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (bindResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Bind(uint8_t address[ipv6AddressSize], uint32_t scope, uint16_t port)
{
struct sockaddr_in6 sa = { 0 };
socklen_t sa_size = 0;
sockaddr_from_address(address, scope, htons(port), &sa, &sa_size);
if (bind((SOCKET)_fd, (sockaddr*)&sa, sa_size) == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::ConnectInternal(struct sockaddr *sa, int32_t sa_size)
{
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
__try
{
if (connect(fd, sa, (socklen_t)sa_size) != -1)
return kWaitStatusSuccess;
if (errno != EINTR)
{
StoreLastError();
return kWaitStatusFailure;
}
struct pollfd fds = { 0 };
fds.fd = fd;
fds.events = POLLOUT;
while (WSAPoll(&fds, 1, -1) == -1)
{
if (errno != EINTR)
{
StoreLastError();
return kWaitStatusFailure;
}
}
int32_t so_error = 0;
socklen_t len = sizeof(so_error);
if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (char*)&so_error, &len) == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
if (so_error != 0)
{
StoreLastError(so_error);
return kWaitStatusFailure;
}
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
SetLastError(kWSAeshutdown);
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Connect(const char *path)
{
// NOTE(gab): not supported on Windows.
return kWaitStatusFailure;
}
WaitStatus SocketImpl::Connect(uint32_t address, uint16_t port)
{
struct sockaddr sa = {0};
socklen_t sa_size = 0;
sockaddr_from_address(htonl(address), htons(port), &sa, &sa_size);
return ConnectInternal((struct sockaddr *)&sa, sa_size);
}
WaitStatus SocketImpl::Connect(uint8_t address[ipv6AddressSize], uint32_t scope, uint16_t port)
{
struct sockaddr_in6 sa = { 0 };
socklen_t sa_size = 0;
sockaddr_from_address(address, scope, htons(port), &sa, &sa_size);
return ConnectInternal((struct sockaddr *)&sa, sa_size);
}
WaitStatus SocketImpl::GetLocalEndPointInfo(EndPointInfo &info)
{
// Note: the size here could probably be smaller
uint8_t buffer[END_POINT_MAX_PATH_LEN + 3] = {0};
socklen_t address_len = sizeof(buffer);
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int getsocknameResult = -1;
__try
{
getsocknameResult = getsockname(fd, (struct sockaddr *)buffer, &address_len);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
SetLastError(kWSAeshutdown);
return kWaitStatusFailure;
}
if (getsocknameResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
if (!socketaddr_to_endpoint_info((struct sockaddr *)buffer, address_len, info))
{
_saved_error = kWSAeafnosupport;
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::GetRemoteEndPointInfo(EndPointInfo &info)
{
// Note: the size here could probably be smaller
uint8_t buffer[END_POINT_MAX_PATH_LEN + 3] = {0};
socklen_t address_len = sizeof(buffer);
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int getpeernameResult = -1;
__try
{
getpeernameResult = getpeername(fd, (struct sockaddr *)buffer, &address_len);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (getpeernameResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
if (!socketaddr_to_endpoint_info((struct sockaddr *)buffer, address_len, info))
{
_saved_error = kWSAeafnosupport;
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Listen(int32_t backlog)
{
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int listenResult = -1;
__try
{
listenResult = listen(fd, backlog);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (listenResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Shutdown(int32_t how)
{
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int shutdownResult = -1;
__try
{
shutdownResult = shutdown(fd, how);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (shutdownResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
if (how == SD_RECEIVE || how == SD_BOTH)
_still_readable = 0;
return kWaitStatusSuccess;
}
static SOCKET AcceptProtected(SOCKET fd)
{
SOCKET new_fd;
do
{
__try
{
new_fd = accept(fd, NULL, 0);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
new_fd = -1;
break;
}
}
while (new_fd == -1 && errno == EINTR);
return new_fd;
}
WaitStatus SocketImpl::Accept(os::Socket **socket)
{
SocketDescriptor new_fd = 0;
*socket = NULL;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
new_fd = AcceptProtected(fd);
if (new_fd == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
*socket = new os::Socket(_thread_status_callback);
const WaitStatus status = (*socket)->Create(new_fd, _domain, _type, _protocol);
if (status != kWaitStatusSuccess)
{
delete *socket;
*socket = NULL;
return status;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Disconnect(bool reuse)
{
GUID GuidDisconnectEx = WSAID_DISCONNECTEX;
LPFN_DISCONNECTEX disconnectEx;
DWORD copied;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
__try
{
int32_t ret = WSAIoctl(fd, SIO_GET_EXTENSION_FUNCTION_POINTER, &GuidDisconnectEx, sizeof(GuidDisconnectEx), &disconnectEx, sizeof(disconnectEx), &copied, 0, 0);
if (ret == SOCKET_ERROR)
{
StoreLastError();
return kWaitStatusFailure;
}
if (!disconnectEx(fd, NULL, 0, NULL))
{
StoreLastError();
return kWaitStatusFailure;
}
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Receive(const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
*len = 0;
const int32_t c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
return ReceiveFromInternal(data, count, c_flags, len, NULL, 0);
}
WaitStatus SocketImpl::ReceiveFromInternal(const uint8_t *data, size_t count, int32_t flags, int32_t *len, struct sockaddr *from, int32_t *fromlen)
{
int32_t ret = 0;
IL2CPP_ASSERT(count < static_cast<size_t>(std::numeric_limits<int>::max()));
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
do
{
__try
{
ret = recvfrom(fd, (char*)data, static_cast<int>(count), flags, from, (socklen_t*)fromlen);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
break;
}
}
while (ret == -1 && errno == EINTR);
if (ret == 0 && count > 0)
{
// According to the Linux man page, recvfrom only
// returns 0 when the socket has been shut down
// cleanly. Turn this into an EINTR to simulate win32
// behaviour of returning EINTR when a socket is
// closed while the recvfrom is blocking (we use a
// shutdown() in socket_close() to trigger this.) See
// bug 75705.
// Distinguish between the socket being shut down at
// the local or remote ends, and reads that request 0
// bytes to be read
// If this returns FALSE, it means the socket has been
// closed locally. If it returns TRUE, but
// still_readable != 1 then shutdown
// (SHUT_RD|SHUT_RDWR) has been called locally.
if (_still_readable != 1)
{
ret = -1;
errno = EINTR;
}
}
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
*len = ret;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Send(const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
*len = 0;
const int32_t c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = 0;
do
{
__try
{
ret = send(fd, (char*)data, count, flags);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
break;
}
}
while (ret == -1 && errno == EINTR);
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
*len = ret;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::SendArray(WSABuf *wsabufs, int32_t count, int32_t *sent, SocketFlags flags)
{
DWORD c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
DWORD bytes_sent;
int32_t ret = -1;
__try
{
ret = WSASend(fd, (WSABUF*)wsabufs, count, &bytes_sent, c_flags, NULL, NULL);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == SOCKET_ERROR)
{
*sent = 0;
StoreLastError();
return kWaitStatusFailure;
}
*sent = bytes_sent;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::ReceiveArray(WSABuf *wsabufs, int32_t count, int32_t *len, SocketFlags flags)
{
DWORD recv;
DWORD c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = -1;
__try
{
// NOTE(gab): this cast is possible as long as WSABuf is binary compatible with WSABUF
ret = WSARecv(fd, (WSABUF*)wsabufs, count, &recv, &c_flags, NULL, NULL);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == SOCKET_ERROR)
{
*len = 0;
StoreLastError();
return kWaitStatusFailure;
}
*len = recv;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::SendToInternal(struct sockaddr *sa, int32_t sa_size, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
const int32_t c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = 0;
do
{
__try
{
ret = sendto(fd, (char*)data, count, c_flags, sa, sa_size);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
break;
}
}
while (ret == -1 && errno == EINTR);
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
*len = ret;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::SendTo(uint32_t address, uint16_t port, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
*len = 0;
struct sockaddr sa = {0};
socklen_t sa_size = 0;
sockaddr_from_address(htonl(address), htons(port), &sa, &sa_size);
return SendToInternal(&sa, sa_size, data, count, flags, len);
}
utils::Expected<WaitStatus> SocketImpl::SendTo(const char *path, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
return utils::Il2CppError(utils::NotSupported, "Unix sockets are not supported on this platform.");
}
WaitStatus SocketImpl::SendTo(uint8_t address[ipv6AddressSize], uint32_t scope, uint16_t port, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len)
{
*len = 0;
struct sockaddr_in6 sa = { 0 };
socklen_t sa_size = 0;
sockaddr_from_address(address, scope, htons(port), &sa, &sa_size);
return SendToInternal((sockaddr*)&sa, sa_size, data, count, flags, len);
}
WaitStatus SocketImpl::RecvFromInternal(struct sockaddr* sa, int32_t sa_size, const uint8_t* data, int32_t count, os::SocketFlags flags, int32_t* len, os::EndPointInfo& ep)
{
const int32_t c_flags = convert_socket_flags(flags);
if (c_flags == -1)
{
_saved_error = kWSAeopnotsupp;
return kWaitStatusFailure;
}
int32_t ret = 0;
const WaitStatus status = ReceiveFromInternal(data, count, c_flags, len, sa, &sa_size);
if (status != kWaitStatusSuccess)
{
ep.family = os::kAddressFamilyError;
return status;
}
if (sa_size == 0)
return kWaitStatusSuccess;
if (!socketaddr_to_endpoint_info(sa, sa_size, ep))
{
ep.family = os::kAddressFamilyError;
_saved_error = kWSAeafnosupport;
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::RecvFrom(uint32_t address, uint16_t port, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len, os::EndPointInfo &ep)
{
*len = 0;
struct sockaddr sa = {0};
socklen_t sa_size = 0;
sockaddr_from_address(htonl(address), htons(port), &sa, &sa_size);
return RecvFromInternal(&sa, sa_size, data, count, flags, len, ep);
}
utils::Expected<WaitStatus> SocketImpl::RecvFrom(const char *path, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len, os::EndPointInfo &ep)
{
return utils::Il2CppError(utils::NotSupported, "Unix sockets are not supported on this platform.");
}
WaitStatus SocketImpl::RecvFrom(uint8_t address[ipv6AddressSize], uint32_t scope, uint16_t port, const uint8_t *data, int32_t count, os::SocketFlags flags, int32_t *len, os::EndPointInfo &ep)
{
*len = 0;
struct sockaddr_in6 sa = { 0 };
socklen_t sa_size = 0;
sockaddr_from_address(address, scope, htons(port), &sa, &sa_size);
return RecvFromInternal((sockaddr*)&sa, sa_size, data, count, flags, len, ep);
}
WaitStatus SocketImpl::Available(int32_t *amount)
{
*amount = 0;
u_long a = 0;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int ioctlsocketResult = -1;
__try
{
ioctlsocketResult = ioctlsocket(fd, FIONREAD, &a);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ioctlsocketResult == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
*amount = a;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Ioctl(int32_t command, const uint8_t *in_data, int32_t in_len, uint8_t *out_data, int32_t out_len, int32_t *written)
{
IL2CPP_ASSERT(command != 0xC8000006 /* SIO_GET_EXTENSION_FUNCTION_POINTER */ && "SIO_GET_EXTENSION_FUNCTION_POINTER ioctl command not supported");
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
DWORD len = 0;
int32_t ret = -1;
__try
{
ret = WSAIoctl(fd, command, (void*)in_data, in_len, out_data, out_len, &len, NULL, NULL);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == SOCKET_ERROR)
{
StoreLastError();
return kWaitStatusFailure;
}
*written = len;
return kWaitStatusSuccess;
}
#define SKIP_OPTION -2
#define INVALID_OPTION_NAME -1
static int32_t level_and_name_to_system(SocketOptionLevel level, SocketOptionName name, int32_t *system_level, int32_t *system_name)
{
switch (level)
{
case kSocketOptionLevelSocket:
*system_level = SOL_SOCKET;
switch (name)
{
// This is SO_LINGER, because the setsockopt
// internal call maps DontLinger to SO_LINGER
// with l_onoff=0
case kSocketOptionNameDontLinger:
*system_name = SO_LINGER;
break;
case kSocketOptionNameDebug:
*system_name = SO_DEBUG;
break;
// #ifdef SO_ACCEPTCONN
case kSocketOptionNameAcceptConnection:
*system_name = SO_ACCEPTCONN;
break;
// #endif
case kSocketOptionNameReuseAddress:
*system_name = SO_REUSEADDR;
break;
case kSocketOptionNameKeepAlive:
*system_name = SO_KEEPALIVE;
break;
case kSocketOptionNameDontRoute:
*system_name = SO_DONTROUTE;
break;
case kSocketOptionNameBroadcast:
*system_name = SO_BROADCAST;
break;
case kSocketOptionNameLinger:
*system_name = SO_LINGER;
break;
case kSocketOptionNameOutOfBandInline:
*system_name = SO_OOBINLINE;
break;
case kSocketOptionNameSendBuffer:
*system_name = SO_SNDBUF;
break;
case kSocketOptionNameReceiveBuffer:
*system_name = SO_RCVBUF;
break;
case kSocketOptionNameSendLowWater:
*system_name = SO_SNDLOWAT;
break;
case kSocketOptionNameReceiveLowWater:
*system_name = SO_RCVLOWAT;
break;
case kSocketOptionNameSendTimeout:
*system_name = SO_SNDTIMEO;
break;
case kSocketOptionNameReceiveTimeout:
*system_name = SO_RCVTIMEO;
break;
case kSocketOptionNameError:
*system_name = SO_ERROR;
break;
case kSocketOptionNameType:
*system_name = SO_TYPE;
break;
case kSocketOptionNameExclusiveAddressUse:
#ifdef SO_EXCLUSIVEADDRUSE
*system_name = SO_EXCLUSIVEADDRUSE;
break;
#elif SO_REUSEADDR
*system_name = SO_REUSEADDR;
break;
#endif
case kSocketOptionNameUseLoopback:
#ifdef SO_USELOOPBACK
*system_name = SO_USELOOPBACK;
break;
#endif
case kSocketOptionNameMaxConnections:
#ifdef SO_MAXCONN
*system_name = SO_MAXCONN;
break;
#elif defined(SOMAXCONN)
*system_name = SOMAXCONN;
break;
#endif
default:
return INVALID_OPTION_NAME;
}
break;
case kSocketOptionLevelIP:
*system_level = IPPROTO_IP;
switch (name)
{
case kSocketOptionNameIPOptions:
*system_name = IP_OPTIONS;
break;
#ifdef IP_HDRINCL
case kSocketOptionNameHeaderIncluded:
*system_name = IP_HDRINCL;
break;
#endif
#ifdef IP_TOS
case kSocketOptionNameTypeOfService:
*system_name = IP_TOS;
break;
#endif
#ifdef IP_TTL
case kSocketOptionNameIpTimeToLive:
*system_name = IP_TTL;
break;
#endif
case kSocketOptionNameMulticastInterface:
*system_name = IP_MULTICAST_IF;
break;
case kSocketOptionNameMulticastTimeToLive:
*system_name = IP_MULTICAST_TTL;
break;
case kSocketOptionNameMulticastLoopback:
*system_name = IP_MULTICAST_LOOP;
break;
case kSocketOptionNameAddMembership:
*system_name = IP_ADD_MEMBERSHIP;
break;
case kSocketOptionNameDropMembership:
*system_name = IP_DROP_MEMBERSHIP;
break;
#ifdef HAVE_IP_PKTINFO
case kSocketOptionNamePacketInformation:
*system_name = IP_PKTINFO;
break;
#endif
case kSocketOptionNameDontFragment:
#ifdef IP_DONTFRAGMENT
*system_name = IP_DONTFRAGMENT;
#elif IP_MTU_DISCOVER
*system_name = IP_MTU_DISCOVER;
#elif IP_DONTFRAG
*system_name = IP_DONTFRAG;
#else
return SKIP_OPTION;
#endif
break;
case kSocketOptionNameAddSourceMembership:
case kSocketOptionNameDropSourceMembership:
case kSocketOptionNameBlockSource:
case kSocketOptionNameUnblockSource:
// Can't figure out how to map these, so fall
// through
default:
return INVALID_OPTION_NAME;
}
break;
#if IL2CPP_SUPPORT_IPV6
case kSocketOptionLevelIPv6:
*system_level = IPPROTO_IPV6;
switch (name)
{
case kSocketOptionNameMulticastInterface:
*system_name = IPV6_MULTICAST_IF;
break;
case kSocketOptionNameMulticastTimeToLive:
*system_name = IPV6_MULTICAST_HOPS;
break;
case kSocketOptionNameMulticastLoopback:
*system_name = IPV6_MULTICAST_LOOP;
break;
case kSocketOptionNameAddMembership:
*system_name = IPV6_JOIN_GROUP;
break;
case kSocketOptionNameDropMembership:
*system_name = IPV6_LEAVE_GROUP;
break;
case kSocketOptionNamePacketInformation:
#ifdef HAVE_IPV6_PKTINFO
*system_name = IPV6_PKTINFO;
break;
#endif
case kSocketOptionNameIPv6Only:
#ifdef IPV6_V6ONLY
*system_name = IPV6_V6ONLY;
break;
#endif
case kSocketOptionNameHeaderIncluded:
case kSocketOptionNameIPOptions:
case kSocketOptionNameTypeOfService:
case kSocketOptionNameDontFragment:
case kSocketOptionNameAddSourceMembership:
case kSocketOptionNameDropSourceMembership:
case kSocketOptionNameBlockSource:
case kSocketOptionNameUnblockSource:
// Can't figure out how to map these, so fall
// through
default:
return INVALID_OPTION_NAME;
}
break;
#endif // IL2CPP_SUPPORT_IPV6
case kSocketOptionLevelTcp:
#ifdef SOL_TCP
*system_level = SOL_TCP;
#else
*system_level = IPPROTO_TCP;
#endif
switch (name)
{
case kSocketOptionNameNoDelay:
*system_name = TCP_NODELAY;
break;
default:
return INVALID_OPTION_NAME;
}
break;
case kSocketOptionLevelUdp:
default:
return INVALID_OPTION_NAME;
}
return 0;
}
WaitStatus SocketImpl::GetSocketOption(SocketOptionLevel level, SocketOptionName name, uint8_t *buffer, int32_t *length)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
*((int32_t*)buffer) = 0;
*length = sizeof(int32_t);
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
uint8_t *tmp_val = buffer;
int32_t ret = -1;
__try
{
ret = getsockopt(fd, system_level, system_name, (char*)tmp_val, (socklen_t*)length);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
if (system_name == SO_ERROR)
{
if (*((int32_t*)buffer) != 0)
{
StoreLastError(*((int32_t*)buffer));
}
else
{
*((int32_t*)buffer) = _saved_error;
}
}
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::GetSocketOptionFull(SocketOptionLevel level, SocketOptionName name, int32_t *first, int32_t *second)
{
int32_t system_level = 0;
int32_t system_name = 0;
#if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
if (level == kSocketOptionLevelSocket && name == kSocketOptionNameExclusiveAddressUse)
{
system_level = SOL_SOCKET;
system_name = SO_REUSEADDR;
}
else
#endif
{
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
*first = 0;
*second = 0;
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
}
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = -1;
switch (name)
{
case kSocketOptionNameLinger:
{
struct linger linger;
socklen_t lingersize = sizeof(linger);
__try
{
ret = getsockopt(fd, system_level, system_name, (char*)&linger, &lingersize);
*first = linger.l_onoff;
*second = linger.l_linger;
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
}
}
break;
case kSocketOptionNameDontLinger:
{
struct linger linger;
socklen_t lingersize = sizeof(linger);
__try
{
ret = getsockopt(fd, system_level, system_name, (char*)&linger, &lingersize);
*first = !linger.l_onoff;
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
}
}
break;
case kSocketOptionNameSendTimeout:
case kSocketOptionNameReceiveTimeout:
{
socklen_t time_ms_size = sizeof(*first);
__try
{
ret = getsockopt(fd, system_level, system_name, (char*)first, &time_ms_size);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
}
}
break;
default:
{
socklen_t valsize = sizeof(*first);
__try
{
ret = getsockopt(fd, system_level, system_name, (char*)first, &valsize);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
ret = -1;
}
}
break;
}
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
#if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
if (level == kSocketOptionLevelSocket && name == kSocketOptionNameExclusiveAddressUse)
*first = *first ? 0 : 1;
#endif
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Poll(std::vector<PollRequest> &requests, int32_t count, int32_t timeout, int32_t *result, int32_t *error)
{
const size_t nfds = (size_t)count;
fd_set rfds, wfds, efds;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
for (size_t i = 0; i < nfds; i++)
{
SOCKET fd = static_cast<SOCKET>(requests[i].fd);
requests[i].revents = kPollFlagsNone;
if (fd == -1)
continue;
if ((requests[i].events & kPollFlagsIn) != 0)
FD_SET(fd, &rfds);
if ((requests[i].events & kPollFlagsOut) != 0)
FD_SET(fd, &wfds);
FD_SET(fd, &efds);
}
timeval timevalTimeout;
timeval* timeoutPtr = NULL;
if (timeout != -1)
{
timevalTimeout.tv_sec = timeout / 1000;
timevalTimeout.tv_usec = (timeout % 1000) * 1000;
timeoutPtr = &timevalTimeout;
}
int32_t affected = -1;
__try
{
affected = select(0, &rfds, &wfds, &efds, timeoutPtr);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (affected == -1)
{
*error = WSAGetLastError();
// Mono does this as well and the threadpool-ms-io-poll code depends on this behavior
if (*error == WSAENOTSOCK)
{
*error = os::kInvalidHandle;
}
return kWaitStatusFailure;
}
int32_t resultCount = 0;
for (size_t i = 0; i < nfds && affected > 0; i++)
{
SOCKET fd = static_cast<SOCKET>(requests[i].fd);
if (fd == -1)
continue;
if ((requests[i].events & kPollFlagsIn) != 0 && FD_ISSET(fd, &rfds))
{
requests[i].revents |= kPollFlagsIn;
affected--;
}
if ((requests[i].events & kPollFlagsOut) != 0 && FD_ISSET(fd, &wfds))
{
requests[i].revents |= kPollFlagsOut;
affected--;
}
if (FD_ISSET(fd, &efds))
{
requests[i].revents |= kPollFlagsErr;
affected--;
}
if (requests[i].revents != kPollFlagsNone)
resultCount++;
}
*result = resultCount;
return kWaitStatusSuccess;
}
WaitStatus SocketImpl::Poll(std::vector<PollRequest>& requests, int32_t timeout, int32_t *result, int32_t *error)
{
return Poll(requests, (int32_t)requests.size(), timeout, result, error);
}
WaitStatus SocketImpl::Poll(PollRequest& request, int32_t timeout, int32_t *result, int32_t *error)
{
std::vector<PollRequest> requests;
requests.push_back(request);
return Poll(requests, 1, timeout, result, error);
}
WaitStatus SocketImpl::SetSocketOption(SocketOptionLevel level, SocketOptionName name, int32_t value)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
struct linger linger;
WaitStatus ret = kWaitStatusFailure;
switch (name)
{
case kSocketOptionNameDontLinger:
linger.l_onoff = !value;
linger.l_linger = 0;
ret = SetSocketOptionInternal(system_level, system_name, &linger, sizeof(linger));
break;
case kSocketOptionNameDontFragment:
#ifdef IP_PMTUDISC_DO
// Fiddle with the value slightly if we're turning DF on
if (value == 1)
value = IP_PMTUDISC_DO;
#endif
ret = SetSocketOptionInternal(system_level, system_name, (char*)&value, sizeof(value));
break;
default:
ret = SetSocketOptionInternal(system_level, system_name, (char*)&value, sizeof(value));
break;
}
return ret;
}
WaitStatus SocketImpl::SetSocketOptionLinger(SocketOptionLevel level, SocketOptionName name, bool enabled, int32_t seconds)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
struct linger linger;
linger.l_onoff = enabled;
linger.l_linger = seconds;
return SetSocketOptionInternal(system_level, system_name, &linger, sizeof(linger));
}
WaitStatus SocketImpl::SetSocketOptionArray(SocketOptionLevel level, SocketOptionName name, const uint8_t *buffer, int32_t length)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
struct linger linger;
WaitStatus ret = kWaitStatusFailure;
switch (name)
{
case kSocketOptionNameDontLinger:
if (length == 1)
{
linger.l_linger = 0;
linger.l_onoff = (*((char*)buffer)) ? 0 : 1;
ret = SetSocketOptionInternal(system_level, system_name, &linger, sizeof(linger));
}
else
{
_saved_error = kWSAeinval;
return kWaitStatusFailure;
}
break;
default:
ret = SetSocketOptionInternal(system_level, system_name, buffer, length);
break;
}
return ret;
}
WaitStatus SocketImpl::SetSocketOptionMembership(SocketOptionLevel level, SocketOptionName name, uint32_t group_address, uint32_t local_address)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
IP_MREQ mreq = {{0}};
mreq.imr_multiaddr.s_addr = group_address;
mreq.imr_interface.s_addr = local_address;
return SetSocketOptionInternal(system_level, system_name, &mreq, sizeof(mreq));
return kWaitStatusFailure;
}
#if IL2CPP_SUPPORT_IPV6
WaitStatus SocketImpl::SetSocketOptionMembership(SocketOptionLevel level, SocketOptionName name, IPv6Address ipv6, uint64_t interfaceOffset)
{
int32_t system_level = 0;
int32_t system_name = 0;
const int32_t o_res = level_and_name_to_system(level, name, &system_level, &system_name);
if (o_res == SKIP_OPTION)
{
return kWaitStatusSuccess;
}
if (o_res == INVALID_OPTION_NAME)
{
_saved_error = kWSAenoprotoopt;
return kWaitStatusFailure;
}
struct ipv6_mreq mreq6 = { { 0 } };
struct in6_addr in6addr;
for (int i = 0; i < 16; ++i)
in6addr.s6_addr[i] = ipv6.addr[i];
mreq6.ipv6mr_multiaddr = in6addr;
mreq6.ipv6mr_interface = (ULONG)interfaceOffset;
return SetSocketOptionInternal(system_level, system_name, &mreq6, sizeof(mreq6));
}
#endif
WaitStatus SocketImpl::SetSocketOptionInternal(int32_t level, int32_t name, const void *value, int32_t len)
{
const void *real_val = value;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = -1;
__try
{
ret = setsockopt(fd, level, name, (const char*)real_val, (socklen_t)len);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
if (ret == -1)
{
StoreLastError();
return kWaitStatusFailure;
}
return kWaitStatusSuccess;
}
int32_t WSAIoctlProtected(SOCKET s, DWORD dwIoControlCode, LPVOID lpvInBuffer, DWORD cbInBuffer, LPVOID lpvOutBuffer, DWORD cbOutBuffer, LPDWORD lpcbBytesReturned, LPWSAOVERLAPPED lpOverlapped, LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
__try
{
return WSAIoctl(s, dwIoControlCode, lpvInBuffer, cbInBuffer, lpvOutBuffer, cbOutBuffer, lpcbBytesReturned, lpOverlapped, lpCompletionRoutine);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
return -1;
}
BOOL transmitFileProtected(LPFN_TRANSMITFILE transmitFile, SOCKET hSocket, HANDLE hFile, DWORD nNumberOfBytesToWrite, DWORD nNumberOfBytesPerSend, LPOVERLAPPED lpOverlapped, LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers, DWORD dwReserved)
{
__try
{
return transmitFile(hSocket, hFile, nNumberOfBytesToWrite, nNumberOfBytesPerSend, lpOverlapped, lpTransmitBuffers, dwReserved);
}
__except (SocketExceptionFilter(GetExceptionCode()))
{
}
return FALSE;
}
WaitStatus SocketImpl::SendFile(const char *filename, TransmitFileBuffers *buffers, TransmitFileOptions options)
{
if (filename == NULL)
return kWaitStatusFailure;
const UTF16String wideFilename = utils::StringUtils::Utf8ToUtf16(filename);
HANDLE file = CreateFileW((LPCWSTR)wideFilename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (file == INVALID_HANDLE_VALUE)
{
StoreLastError();
return kWaitStatusFailure;
}
GUID transmitFileGuid = WSAID_TRANSMITFILE;
LPFN_TRANSMITFILE transmitFile;
DWORD copied;
SOCKET fd = (SOCKET)_fd;
if (fd == -1)
{
Error::SetLastError(il2cpp::os::kWSAeshutdown);
return kWaitStatusFailure;
}
int32_t ret = WSAIoctlProtected(fd, SIO_GET_EXTENSION_FUNCTION_POINTER, &transmitFileGuid, sizeof(transmitFileGuid), &transmitFile, sizeof(transmitFile), &copied, 0, 0);
if (ret == SOCKET_ERROR)
{
StoreLastError();
return kWaitStatusFailure;
}
if (!transmitFileProtected(transmitFile, fd, file, 0, 0, NULL, (TRANSMIT_FILE_BUFFERS*)buffers, options))
{
StoreLastError();
CloseHandle(file);
return kWaitStatusFailure;
}
CloseHandle(file);
return kWaitStatusSuccess;
}
}
}
#endif