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prefer public ipv6 instead rfc4941 (closes #1251)

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Wokrs only on linux-based systems. Not tested on other *nix systems, and
not works on windows.

Signed-off-by: R4SAS <r4sas@i2pmail.org>
This commit is contained in:
R4SAS 2021-05-30 03:23:00 +03:00
parent a0e545a6f1
commit ed42948051
3 changed files with 21 additions and 3 deletions
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9
libi2pd/NTCP2.cpp
View File

@ -23,6 +23,10 @@
#include "HTTP.h"
#include "util.h"
#ifdef __linux__
#include <linux/in6.h>
#endif
namespace i2p
{
namespace transport
@ -1198,6 +1202,11 @@ namespace transport
ep = boost::asio::ip::tcp::endpoint (m_Address6->address(), address->port);
else if (m_YggdrasilAddress && !context.SupportsV6 ())
ep = boost::asio::ip::tcp::endpoint (m_YggdrasilAddress->address(), address->port);
#ifdef __linux__
// Set preference to use public IPv6 address -- tested on linux, not works on windows, and not tested on others
typedef boost::asio::detail::socket_option::boolean<IPV6_ADDR_PREFERENCES, IPV6_PREFER_SRC_PUBLIC> ipv6PreferPubAddr;
m_NTCP2V6Acceptor->set_option (ipv6PreferPubAddr (true));
#endif
m_NTCP2V6Acceptor->bind (ep);
m_NTCP2V6Acceptor->listen ();

9
libi2pd/SSU.cpp
View File

@ -14,6 +14,10 @@
#include "SSU.h"
#include "util.h"
#ifdef __linux__
#include <linux/in6.h>
#endif
#ifdef _WIN32
#include <boost/winapi/error_codes.hpp>
#endif
@ -62,6 +66,11 @@ namespace transport
m_SocketV6.set_option (boost::asio::ip::v6_only (true));
m_SocketV6.set_option (boost::asio::socket_base::receive_buffer_size (SSU_SOCKET_RECEIVE_BUFFER_SIZE));
m_SocketV6.set_option (boost::asio::socket_base::send_buffer_size (SSU_SOCKET_SEND_BUFFER_SIZE));
#ifdef __linux__
// Set preference to use public IPv6 address -- tested on linux, not works on windows, and not tested on others
typedef boost::asio::detail::socket_option::boolean<IPV6_ADDR_PREFERENCES, IPV6_PREFER_SRC_PUBLIC> ipv6PreferPubAddr;
m_SocketV6.set_option (ipv6PreferPubAddr(true));
#endif
m_SocketV6.bind (m_EndpointV6);
LogPrint (eLogInfo, "SSU: Start listening v6 port ", m_EndpointV6.port());
}

6
libi2pd/util.h
View File

@ -177,13 +177,13 @@ namespace util
SaveStateHelper (T& orig): m_Original (orig), m_Copy (orig) {};
~SaveStateHelper () { m_Original = m_Copy; };
private:
T& m_Original;
T m_Copy;
};
};
namespace net
{
int GetMTU (const boost::asio::ip::address& localAddress);