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#import "OFAlreadyOpenException.h"
#import "OFBindIPSocketFailedException.h"
#import "OFGetOptionFailedException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFSetOptionFailedException.h"
#ifdef HAVE_LINUX_MPTCP_H
# include <linux/mptcp.h>
#endif
#if defined(OF_MACOS) || defined(OF_IOS)
# ifndef AF_MULTIPATH
# define AF_MULTIPATH 39
# endif
#endif
enum {
flagUseMPTCP = 1,
flagMapIPv4 = 2,
flagUseConnectX = 4
};
static const OFRunLoopMode connectRunLoopMode =
@"OFTCPSocketConnectRunLoopMode";
static OFString *defaultSOCKS5Host = nil;
static uint16_t defaultSOCKS5Port = 1080;
#if defined(OF_LINUX) && defined(IPPROTO_MPTCP)
static OFSocketAddress
mapIPv4(const OFSocketAddress *IPv4Address)
{
OFSocketAddress IPv6Address = {
.family = OFSocketAddressFamilyIPv6,
.length = sizeof(struct sockaddr_in6)
};
IPv6Address.sockaddr.in6.sin6_family = AF_INET6;
IPv6Address.sockaddr.in6.sin6_port = IPv4Address->sockaddr.in.sin_port;
memcpy(&IPv6Address.sockaddr.in6.sin6_addr.s6_addr[12],
&IPv4Address->sockaddr.in.sin_addr.s_addr, 4);
IPv6Address.sockaddr.in6.sin6_addr.s6_addr[10] = 0xFF;
IPv6Address.sockaddr.in6.sin6_addr.s6_addr[11] = 0xFF;
return IPv6Address;
}
#endif
@interface OFTCPSocket () <OFAsyncIPSocketConnecting>
@end
@interface OFTCPSocketConnectDelegate: OFObject <OFTCPSocketDelegate>
{
@public
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#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
int flags;
#endif
if (_socket != OFInvalidSocketHandle)
@throw [OFAlreadyOpenException exceptionWithObject: self];
#if defined(OF_LINUX) && defined(IPPROTO_MPTCP)
if (_flags & flagUseMPTCP) {
/*
* For MPTCP sockets, we always use AF_INET6, so that IPv4 and
* IPv6 can both be used for a single connection.
*/
_socket = socket(AF_INET6, SOCK_STREAM | SOCK_CLOEXEC,
IPPROTO_MPTCP);
if (_socket != OFInvalidSocketHandle &&
address->family == OFSocketAddressFamilyIPv4)
_flags |= flagMapIPv4;
else
_flags &= ~flagMapIPv4;
}
#elif (defined(OF_MACOS) || defined(OF_IOS)) && defined(SAE_ASSOCID_ANY)
if (_flags & flagUseMPTCP) {
_socket = socket(AF_MULTIPATH, SOCK_STREAM | SOCK_CLOEXEC,
IPPROTO_TCP);
if (_socket != OFInvalidSocketHandle)
_flags |= flagUseConnectX;
else
_flags &= ~flagUseConnectX;
}
#endif
if (_socket == OFInvalidSocketHandle) {
if ((_socket = socket(
((struct sockaddr *)&address->sockaddr)->sa_family,
SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle) {
*errNo = _OFSocketErrNo();
return false;
if ((_socket = socket(
((struct sockaddr *)&address->sockaddr)->sa_family,
SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle) {
*errNo = _OFSocketErrNo();
return false;
}
}
#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif
return true;
}
- (bool)of_connectSocketToAddress: (const OFSocketAddress *)address
errNo: (int *)errNo
{
#if defined(OF_LINUX) && defined(IPPROTO_MPTCP)
OFSocketAddress mappedIPv4;
#endif
if (_socket == OFInvalidSocketHandle)
if (_socket == OFInvalidSocketHandle) {
@throw [OFNotOpenException exceptionWithObject: self];
/* Cast needed for AmigaOS, where the argument is declared non-const */
if (connect(_socket, (struct sockaddr *)&address->sockaddr,
address->length) != 0) {
*errNo = _OFSocketErrNo();
return false;
}
}
#if defined(OF_LINUX) && defined(IPPROTO_MPTCP)
if (_flags & flagMapIPv4) {
/*
* For MPTCP sockets, we always use AF_INET6, so that IPv4 and
* IPv6 can both be used for a single connection.
*/
mappedIPv4 = mapIPv4(address);
address = &mappedIPv4;
}
#endif
#if (defined(OF_MACOS) || defined(OF_IOS)) && defined(SAE_ASSOCID_ANY)
if (_flags & flagUseConnectX) {
sa_endpoints_t endpoints = {
.sae_dstaddr = (struct sockaddr *)&address->sockaddr,
.sae_dstaddrlen = address->length
};
if (connectx(_socket, &endpoints, SAE_ASSOCID_ANY, 0, NULL, 0,
NULL, NULL) != 0) {
*errNo = _OFSocketErrNo();
return false;
}
} else
#endif
/*
* Cast needed for AmigaOS, where the argument is declared
* non-const.
*/
if (connect(_socket, (struct sockaddr *)&address->sockaddr,
address->length) != 0) {
*errNo = _OFSocketErrNo();
return false;
}
return true;
}
- (void)of_closeSocket
{
closesocket(_socket);
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socketAddresses = [[OFThread DNSResolver]
resolveAddressesForHost: host
addressFamily: OFSocketAddressFamilyAny];
address = *(OFSocketAddress *)[socketAddresses itemAtIndex: 0];
OFSocketAddressSetIPPort(&address, port);
#if defined(OF_LINUX) && defined(IPPROTO_MPTCP)
if (_flags & flagUseMPTCP) {
/*
* For MPTCP sockets, we always use AF_INET6, so that IPv4 and
* IPv6 can both be used for a single connection.
*/
_socket = socket(AF_INET6, SOCK_STREAM | SOCK_CLOEXEC,
IPPROTO_MPTCP);
if (_socket != OFInvalidSocketHandle &&
address.family == OFSocketAddressFamilyIPv4)
address = mapIPv4(&address);
}
#endif
if (_socket == OFInvalidSocketHandle)
if ((_socket = socket(
((struct sockaddr *)&address.sockaddr)->sa_family,
SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle)
@throw [OFBindIPSocketFailedException
exceptionWithHost: host
port: port
socket: self
errNo: _OFSocketErrNo()];
if ((_socket = socket(
((struct sockaddr *)&address.sockaddr)->sa_family,
SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle)
@throw [OFBindIPSocketFailedException
exceptionWithHost: host
port: port
socket: self
errNo: _OFSocketErrNo()];
_canBlock = true;
#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif
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@throw [OFGetOptionFailedException
exceptionWithObject: self
errNo: _OFSocketErrNo()];
return !v;
}
#endif
- (void)setUsesMPTCP: (bool)usesMPTCP
{
if (usesMPTCP)
_flags |= flagUseMPTCP;
else
_flags &= ~flagUseMPTCP;
}
- (bool)usesMPTCP
{
#if defined(OF_LINUX) && defined(SOL_MPTCP) && defined(MPTCP_INFO)
struct mptcp_info info;
socklen_t infoLen = (socklen_t)sizeof(info);
if (getsockopt(_socket, SOL_MPTCP, MPTCP_INFO, &info, &infoLen) != -1)
return true;
#endif
return false;
}
- (void)close
{
#ifdef OF_WII
_port = 0;
#endif
[super close];
}
@end
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