forked from Mirrorlandia_minetest/minetest
Add support for IPv6
Two new configuration options are added:
- "enable_ipv6" to enable/disable the overall use of IPv6
- "ipv6_server" to enable/disable the use of IPv6 sockets when running
a server (when "enable_ipv6" is enabled)
This commit is contained in:
proller
parent
309c5f3641
commit
f960c3be31
@ -367,3 +367,9 @@
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# Float islands starts from height, 0 to disable
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#mgindev_float_islands = 500
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# Enable/disable IPv6
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#enable_ipv6 = true
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# Enable/disable running an IPv6 server. An IPv6 server may be restricted
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# to IPv6 clients, depending on system configuration.
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#ipv6_server = false
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@ -271,7 +271,8 @@ Client::Client(
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IWritableItemDefManager *itemdef,
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IWritableNodeDefManager *nodedef,
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ISoundManager *sound,
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MtEventManager *event
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MtEventManager *event,
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bool ipv6
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):
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m_tsrc(tsrc),
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m_shsrc(shsrc),
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@ -287,7 +288,7 @@ Client::Client(
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device->getSceneManager(),
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tsrc, this, device
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),
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m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
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m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
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m_device(device),
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m_server_ser_ver(SER_FMT_VER_INVALID),
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m_playeritem(0),
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@ -263,7 +263,8 @@ public:
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IWritableItemDefManager *itemdef,
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IWritableNodeDefManager *nodedef,
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ISoundManager *sound,
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MtEventManager *event
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MtEventManager *event,
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bool ipv6
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);
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~Client();
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@ -520,10 +520,12 @@ void Peer::reportRTT(float rtt)
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Connection
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*/
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Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout):
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Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
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bool ipv6):
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m_protocol_id(protocol_id),
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m_max_packet_size(max_packet_size),
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m_timeout(timeout),
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m_socket(ipv6),
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m_peer_id(0),
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m_bc_peerhandler(NULL),
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m_bc_receive_timeout(0),
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@ -535,10 +537,11 @@ Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout):
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}
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Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
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PeerHandler *peerhandler):
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bool ipv6, PeerHandler *peerhandler):
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m_protocol_id(protocol_id),
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m_max_packet_size(max_packet_size),
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m_timeout(timeout),
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m_socket(ipv6),
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m_peer_id(0),
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m_bc_peerhandler(peerhandler),
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m_bc_receive_timeout(0),
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@ -548,8 +548,8 @@ struct ConnectionCommand
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class Connection: public SimpleThread
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{
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public:
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Connection(u32 protocol_id, u32 max_packet_size, float timeout);
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Connection(u32 protocol_id, u32 max_packet_size, float timeout,
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Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6);
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Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6,
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PeerHandler *peerhandler);
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~Connection();
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void * Thread();
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@ -36,6 +36,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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// Causes the socket class to deliberately drop random packets.
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// This disables unit testing of socket and connection.
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#define INTERNET_SIMULATOR 0
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#define INTERNET_SIMULATOR_PACKET_LOSS 10 // 10 = easy, 4 = hard
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#define CONNECTION_TIMEOUT 30
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@ -34,7 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0500
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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#ifdef _MSC_VER
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@ -251,6 +251,10 @@ void set_default_settings(Settings *settings)
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settings->setDefault("mgindev_np_float_islands3", "0, 1, (256, 256, 256), 6412, 2, 0.5, 1, 0.5");
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settings->setDefault("mgindev_np_biome", "0, 1, (250, 250, 250), 9130, 3, 0.50, 1, 10");
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settings->setDefault("mgindev_float_islands", "500");
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// IPv6
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settings->setDefault("enable_ipv6", "true");
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settings->setDefault("ipv6_server", "false");
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}
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void override_default_settings(Settings *settings, Settings *from)
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29
src/game.cpp
29
src/game.cpp
@ -1040,12 +1040,6 @@ void the_game(
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MapDrawControl draw_control;
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Client client(device, playername.c_str(), password, draw_control,
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tsrc, shsrc, itemdef, nodedef, sound, &eventmgr);
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// Client acts as our GameDef
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IGameDef *gamedef = &client;
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{
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wchar_t* text = wgettext("Resolving address...");
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draw_load_screen(text, device, font,0,75);
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@ -1054,19 +1048,40 @@ void the_game(
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Address connect_address(0,0,0,0, port);
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try{
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if(address == "")
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{
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//connect_address.Resolve("localhost");
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if(g_settings->getBool("enable_ipv6") && g_settings->getBool("ipv6_server"))
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{
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IPv6AddressBytes addr_bytes;
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addr_bytes.bytes[15] = 1;
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connect_address.setAddress(&addr_bytes);
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}
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else
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{
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connect_address.setAddress(127,0,0,1);
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}
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}
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else
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connect_address.Resolve(address.c_str());
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}
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catch(ResolveError &e)
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{
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error_message = L"Couldn't resolve address";
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error_message = L"Couldn't resolve address: " + narrow_to_wide(e.what());
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errorstream<<wide_to_narrow(error_message)<<std::endl;
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// Break out of client scope
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break;
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}
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/*
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Create client
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*/
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Client client(device, playername.c_str(), password, draw_control,
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tsrc, shsrc, itemdef, nodedef, sound, &eventmgr,
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connect_address.isIPv6());
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// Client acts as our GameDef
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IGameDef *gamedef = &client;
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/*
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Attempt to connect to the server
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*/
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@ -14,6 +14,9 @@
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#if defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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#endif
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@ -31,7 +31,7 @@
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#if (defined(WIN32) || defined(_WIN32_WCE))
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0500
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#define _WIN32_WINNT 0x0501
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#endif
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#ifndef _WIN32_WCE
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#include <process.h>
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@ -42,7 +42,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#ifdef _WIN32
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0500
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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@ -153,6 +153,9 @@ bool threadSetPriority(threadid_t tid, int prio);
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Overflow can occur at any value higher than 10000000.
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*/
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#ifdef _WIN32 // Windows
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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inline u32 getTimeS()
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@ -639,7 +639,8 @@ Server::Server(
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m_simple_singleplayer_mode(simple_singleplayer_mode),
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m_async_fatal_error(""),
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m_env(NULL),
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m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
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m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT,
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g_settings->getBool("enable_ipv6") && g_settings->getBool("ipv6_server"), this),
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m_banmanager(path_world+DIR_DELIM+"ipban.txt"),
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m_rollback(NULL),
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m_rollback_sink_enabled(true),
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447
src/socket.cpp
447
src/socket.cpp
@ -20,7 +20,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "socket.h"
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#ifdef _WIN32
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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// Without this some of the network functions are not found on mingw
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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@ -46,27 +48,30 @@ typedef int socket_t;
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#include "constants.h"
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#include "debug.h"
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#include "settings.h"
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#include "main.h" // for g_settings
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#include <stdio.h>
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#include <iostream>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sstream>
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#include "util/string.h"
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#include "util/numeric.h"
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// Set to true to enable verbose debug output
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bool socket_enable_debug_output = false;
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#define DP socket_enable_debug_output
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// This is prepended to everything printed here
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#define DPS ""
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bool g_sockets_initialized = false;
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// Initialize sockets
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void sockets_init()
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{
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#ifdef _WIN32
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// Windows needs sockets to be initialized before use
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WSADATA WsaData;
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if(WSAStartup( MAKEWORD(2,2), &WsaData ) != NO_ERROR)
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throw SocketException("WSAStartup failed");
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#else
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#endif
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g_sockets_initialized = true;
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}
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@ -74,34 +79,57 @@ void sockets_init()
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void sockets_cleanup()
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{
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#ifdef _WIN32
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// On Windows, cleanup sockets after use
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WSACleanup();
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#endif
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}
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/*
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Address
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*/
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Address::Address()
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{
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m_address = 0;
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m_addr_family = 0;
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memset(&m_address, 0, sizeof m_address);
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m_port = 0;
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}
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Address::Address(unsigned int address, unsigned short port)
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Address::Address(u32 address, u16 port)
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{
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m_address = address;
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m_port = port;
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setAddress(address);
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setPort(port);
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}
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Address::Address(unsigned int a, unsigned int b,
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unsigned int c, unsigned int d,
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unsigned short port)
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Address::Address(u8 a, u8 b, u8 c, u8 d, u16 port)
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{
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m_address = (a<<24) | (b<<16) | ( c<<8) | d;
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m_port = port;
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setAddress(a, b, c, d);
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setPort(port);
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}
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Address::Address(const IPv6AddressBytes * ipv6_bytes, u16 port)
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{
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setAddress(ipv6_bytes);
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setPort(port);
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}
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// Equality (address family, address and port must be equal)
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bool Address::operator==(Address &address)
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{
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return (m_address == address.m_address
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&& m_port == address.m_port);
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if(address.m_addr_family != m_addr_family || address.m_port != m_port)
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return false;
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else if(m_addr_family == AF_INET)
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{
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return m_address.ipv4.sin_addr.s_addr ==
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address.m_address.ipv4.sin_addr.s_addr;
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}
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else if(m_addr_family == AF_INET6)
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{
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return memcmp(m_address.ipv6.sin6_addr.s6_addr,
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address.m_address.ipv6.sin6_addr.s6_addr, 16) == 0;
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}
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else
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return false;
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}
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bool Address::operator!=(Address &address)
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@ -111,105 +139,183 @@ bool Address::operator!=(Address &address)
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void Address::Resolve(const char *name)
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{
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struct addrinfo *resolved;
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int e = getaddrinfo(name, NULL, NULL, &resolved);
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struct addrinfo *resolved, hints;
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memset(&hints, 0, sizeof(hints));
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// Setup hints
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hints.ai_socktype = 0;
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hints.ai_protocol = 0;
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hints.ai_flags = 0;
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if(g_settings->getBool("enable_ipv6"))
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{
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// AF_UNSPEC allows both IPv6 and IPv4 addresses to be returned
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hints.ai_family = AF_UNSPEC;
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}
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else
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{
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hints.ai_family = AF_INET;
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}
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// Do getaddrinfo()
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int e = getaddrinfo(name, NULL, &hints, &resolved);
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if(e != 0)
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throw ResolveError(gai_strerror(e));
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// Copy data
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if(resolved->ai_family == AF_INET)
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{
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struct sockaddr_in *t = (struct sockaddr_in *) resolved->ai_addr;
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m_addr_family = AF_INET;
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m_address.ipv4 = *t;
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}
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else if(resolved->ai_family == AF_INET6)
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{
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struct sockaddr_in6 *t = (struct sockaddr_in6 *) resolved->ai_addr;
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m_addr_family = AF_INET6;
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m_address.ipv6 = *t;
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}
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else
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{
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freeaddrinfo(resolved);
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throw ResolveError("");
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/*
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FIXME: This is an ugly hack; change the whole class
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to store the address as sockaddr
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*/
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struct sockaddr_in *t = (struct sockaddr_in*)resolved->ai_addr;
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m_address = ntohl(t->sin_addr.s_addr);
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}
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freeaddrinfo(resolved);
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}
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// IP address -> textual representation
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std::string Address::serializeString() const
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{
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unsigned int a, b, c, d;
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a = (m_address & 0xFF000000)>>24;
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b = (m_address & 0x00FF0000)>>16;
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c = (m_address & 0x0000FF00)>>8;
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d = (m_address & 0x000000FF);
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return itos(a)+"."+itos(b)+"."+itos(c)+"."+itos(d);
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if(m_addr_family == AF_INET)
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{
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u8 a, b, c, d, addr;
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addr = ntohl(m_address.ipv4.sin_addr.s_addr);
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a = (addr & 0xFF000000) >> 24;
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b = (addr & 0x00FF0000) >> 16;
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c = (addr & 0x0000FF00) >> 8;
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d = (addr & 0x000000FF);
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return itos(a) + "." + itos(b) + "." + itos(c) + "." + itos(d);
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}
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else if(m_addr_family == AF_INET6)
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{
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std::ostringstream os;
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for(int i = 0; i < 16; i += 2)
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{
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u16 section =
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(m_address.ipv6.sin6_addr.s6_addr[i] << 8) |
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(m_address.ipv6.sin6_addr.s6_addr[i + 1]);
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os << std::hex << section;
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if(i < 14)
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os << ":";
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}
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return os.str();
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}
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else
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return std::string("");
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}
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unsigned int Address::getAddress() const
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struct sockaddr_in Address::getAddress() const
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{
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return m_address;
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return m_address.ipv4; // NOTE: NO PORT INCLUDED, use getPort()
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}
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unsigned short Address::getPort() const
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struct sockaddr_in6 Address::getAddress6() const
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{
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return m_address.ipv6; // NOTE: NO PORT INCLUDED, use getPort()
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}
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u16 Address::getPort() const
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{
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return m_port;
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}
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void Address::setAddress(unsigned int address)
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int Address::getFamily() const
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{
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m_address = address;
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return m_addr_family;
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}
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void Address::setAddress(unsigned int a, unsigned int b,
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unsigned int c, unsigned int d)
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bool Address::isIPv6() const
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{
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m_address = (a<<24) | (b<<16) | ( c<<8) | d;
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return m_addr_family == AF_INET6;
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}
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void Address::setPort(unsigned short port)
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void Address::setAddress(u32 address)
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{
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m_addr_family = AF_INET;
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m_address.ipv4.sin_family = AF_INET;
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m_address.ipv4.sin_addr.s_addr = htonl(address);
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}
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void Address::setAddress(u8 a, u8 b, u8 c, u8 d)
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{
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m_addr_family = AF_INET;
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m_address.ipv4.sin_family = AF_INET;
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u32 addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
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m_address.ipv4.sin_addr.s_addr = addr;
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}
|
||||
|
||||
void Address::setAddress(const IPv6AddressBytes * ipv6_bytes)
|
||||
{
|
||||
m_addr_family = AF_INET6;
|
||||
m_address.ipv6.sin6_family = AF_INET6;
|
||||
if(ipv6_bytes)
|
||||
memcpy(m_address.ipv6.sin6_addr.s6_addr, ipv6_bytes->bytes, 16);
|
||||
else
|
||||
memset(m_address.ipv6.sin6_addr.s6_addr, 0, 16);
|
||||
}
|
||||
|
||||
void Address::setPort(u16 port)
|
||||
{
|
||||
m_port = port;
|
||||
}
|
||||
|
||||
void Address::print(std::ostream *s) const
|
||||
{
|
||||
(*s)<<((m_address>>24)&0xff)<<"."
|
||||
<<((m_address>>16)&0xff)<<"."
|
||||
<<((m_address>>8)&0xff)<<"."
|
||||
<<((m_address>>0)&0xff)<<":"
|
||||
<<m_port;
|
||||
if(m_addr_family == AF_INET6)
|
||||
{
|
||||
(*s) << "[" << serializeString() << "]:" << m_port;
|
||||
}
|
||||
else
|
||||
{
|
||||
(*s) << serializeString() << ":" << m_port;
|
||||
}
|
||||
}
|
||||
|
||||
void Address::print() const
|
||||
{
|
||||
print(&dstream);
|
||||
}
|
||||
/*
|
||||
UDPSocket
|
||||
*/
|
||||
|
||||
UDPSocket::UDPSocket()
|
||||
UDPSocket::UDPSocket(bool ipv6)
|
||||
{
|
||||
if(g_sockets_initialized == false)
|
||||
throw SocketException("Sockets not initialized");
|
||||
|
||||
m_handle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
||||
// Use IPv6 if specified
|
||||
m_addr_family = ipv6 ? AF_INET6 : AF_INET;
|
||||
m_handle = socket(m_addr_family, SOCK_DGRAM, IPPROTO_UDP);
|
||||
|
||||
if(DP)
|
||||
dstream<<DPS<<"UDPSocket("<<(int)m_handle<<")::UDPSocket()"<<std::endl;
|
||||
if(socket_enable_debug_output)
|
||||
{
|
||||
dstream << "UDPSocket(" << (int) m_handle
|
||||
<< ")::UDPSocket(): ipv6 = "
|
||||
<< (ipv6 ? "true" : "false")
|
||||
<< std::endl;
|
||||
}
|
||||
|
||||
if(m_handle <= 0)
|
||||
{
|
||||
throw SocketException("Failed to create socket");
|
||||
}
|
||||
|
||||
/*#ifdef _WIN32
|
||||
DWORD nonblocking = 0;
|
||||
if(ioctlsocket(m_handle, FIONBIO, &nonblocking) != 0)
|
||||
{
|
||||
throw SocketException("Failed set non-blocking mode");
|
||||
}
|
||||
#else
|
||||
int nonblocking = 0;
|
||||
if(fcntl(m_handle, F_SETFL, O_NONBLOCK, nonblocking) == -1)
|
||||
{
|
||||
throw SocketException("Failed set non-blocking mode");
|
||||
}
|
||||
#endif*/
|
||||
|
||||
setTimeoutMs(0);
|
||||
}
|
||||
|
||||
UDPSocket::~UDPSocket()
|
||||
{
|
||||
if(DP)
|
||||
dstream<<DPS<<"UDPSocket("<<(int)m_handle<<")::~UDPSocket()"<<std::endl;
|
||||
if(socket_enable_debug_output)
|
||||
{
|
||||
dstream << "UDPSocket( " << (int) m_handle << ")::~UDPSocket()"
|
||||
<< std::endl;
|
||||
}
|
||||
|
||||
#ifdef _WIN32
|
||||
closesocket(m_handle);
|
||||
@ -218,69 +324,106 @@ UDPSocket::~UDPSocket()
|
||||
#endif
|
||||
}
|
||||
|
||||
void UDPSocket::Bind(unsigned short port)
|
||||
void UDPSocket::Bind(u16 port)
|
||||
{
|
||||
if(DP)
|
||||
dstream<<DPS<<"UDPSocket("<<(int)m_handle
|
||||
<<")::Bind(): port="<<port<<std::endl;
|
||||
if(socket_enable_debug_output)
|
||||
{
|
||||
dstream << "UDPSocket(" << (int) m_handle << ")::Bind(): "
|
||||
<< "port=" << port << std::endl;
|
||||
}
|
||||
|
||||
sockaddr_in address;
|
||||
if(m_addr_family == AF_INET6)
|
||||
{
|
||||
struct sockaddr_in6 address;
|
||||
address.sin6_family = AF_INET6;
|
||||
address.sin6_addr = in6addr_any;
|
||||
address.sin6_port = htons(port);
|
||||
|
||||
if(bind(m_handle, (const struct sockaddr *) &address,
|
||||
sizeof(struct sockaddr_in6)) < 0)
|
||||
{
|
||||
dstream << (int) m_handle << ": Bind failed: "
|
||||
<< strerror(errno) << std::endl;
|
||||
throw SocketException("Failed to bind socket");
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
struct sockaddr_in address;
|
||||
address.sin_family = AF_INET;
|
||||
address.sin_addr.s_addr = INADDR_ANY;
|
||||
address.sin_port = htons(port);
|
||||
|
||||
if(bind(m_handle, (const sockaddr*)&address, sizeof(sockaddr_in)) < 0)
|
||||
if(bind(m_handle, (const struct sockaddr *) &address,
|
||||
sizeof(struct sockaddr_in)) < 0)
|
||||
{
|
||||
#ifndef DISABLE_ERRNO
|
||||
dstream<<(int)m_handle<<": Bind failed: "<<strerror(errno)<<std::endl;
|
||||
#endif
|
||||
dstream << (int) m_handle << ": Bind failed: "
|
||||
<< strerror(errno) << std::endl;
|
||||
throw SocketException("Failed to bind socket");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void UDPSocket::Send(const Address & destination, const void * data, int size)
|
||||
{
|
||||
bool dumping_packet = false;
|
||||
if(INTERNET_SIMULATOR)
|
||||
dumping_packet = (myrand()%10==0); //easy
|
||||
//dumping_packet = (myrand()%4==0); // hard
|
||||
bool dumping_packet = false; // for INTERNET_SIMULATOR
|
||||
|
||||
if(DP){
|
||||
/*dstream<<DPS<<"UDPSocket("<<(int)m_handle
|
||||
<<")::Send(): destination=";*/
|
||||
dstream<<DPS;
|
||||
dstream<<(int)m_handle<<" -> ";
|
||||
destination.print();
|
||||
dstream<<", size="<<size<<", data=";
|
||||
for(int i=0; i<size && i<20; i++){
|
||||
if(i%2==0) DEBUGPRINT(" ");
|
||||
unsigned int a = ((const unsigned char*)data)[i];
|
||||
if(INTERNET_SIMULATOR)
|
||||
dumping_packet = (myrand() % INTERNET_SIMULATOR_PACKET_LOSS == 0);
|
||||
|
||||
if(socket_enable_debug_output)
|
||||
{
|
||||
// Print packet destination and size
|
||||
dstream << (int) m_handle << " -> ";
|
||||
destination.print(&dstream);
|
||||
dstream << ", size=" << size;
|
||||
|
||||
// Print packet contents
|
||||
dstream << ", data=";
|
||||
for(int i = 0; i < size && i < 20; i++)
|
||||
{
|
||||
if(i % 2 == 0)
|
||||
DEBUGPRINT(" ");
|
||||
unsigned int a = ((const unsigned char *) data)[i];
|
||||
DEBUGPRINT("%.2X", a);
|
||||
}
|
||||
if(size>20)
|
||||
dstream<<"...";
|
||||
|
||||
if(size > 20)
|
||||
dstream << "...";
|
||||
|
||||
if(dumping_packet)
|
||||
dstream<<" (DUMPED BY INTERNET_SIMULATOR)";
|
||||
dstream<<std::endl;
|
||||
dstream << " (DUMPED BY INTERNET_SIMULATOR)";
|
||||
|
||||
dstream << std::endl;
|
||||
}
|
||||
else if(dumping_packet)
|
||||
|
||||
if(dumping_packet)
|
||||
{
|
||||
// Lol let's forget it
|
||||
dstream<<"UDPSocket::Send(): "
|
||||
dstream << "UDPSocket::Send(): "
|
||||
"INTERNET_SIMULATOR: dumping packet."
|
||||
<<std::endl;
|
||||
<< std::endl;
|
||||
return;
|
||||
}
|
||||
|
||||
if(dumping_packet)
|
||||
return;
|
||||
if(destination.getFamily() != m_addr_family)
|
||||
throw SendFailedException("Address family mismatch");
|
||||
|
||||
sockaddr_in address;
|
||||
address.sin_family = AF_INET;
|
||||
address.sin_addr.s_addr = htonl(destination.getAddress());
|
||||
int sent;
|
||||
if(m_addr_family == AF_INET6)
|
||||
{
|
||||
struct sockaddr_in6 address = destination.getAddress6();
|
||||
address.sin6_port = htons(destination.getPort());
|
||||
sent = sendto(m_handle, (const char *) data, size,
|
||||
0, (struct sockaddr *) &address, sizeof(struct sockaddr_in6));
|
||||
}
|
||||
else
|
||||
{
|
||||
struct sockaddr_in address = destination.getAddress();
|
||||
address.sin_port = htons(destination.getPort());
|
||||
|
||||
int sent = sendto(m_handle, (const char*)data, size,
|
||||
0, (sockaddr*)&address, sizeof(sockaddr_in));
|
||||
sent = sendto(m_handle, (const char *) data, size,
|
||||
0, (struct sockaddr *) &address, sizeof(struct sockaddr_in));
|
||||
}
|
||||
|
||||
if(sent != size)
|
||||
{
|
||||
@ -290,39 +433,66 @@ void UDPSocket::Send(const Address & destination, const void * data, int size)
|
||||
|
||||
int UDPSocket::Receive(Address & sender, void * data, int size)
|
||||
{
|
||||
// Return on timeout
|
||||
if(WaitData(m_timeout_ms) == false)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
sockaddr_in address;
|
||||
int received;
|
||||
if(m_addr_family == AF_INET6)
|
||||
{
|
||||
struct sockaddr_in6 address;
|
||||
socklen_t address_len = sizeof(address);
|
||||
|
||||
int received = recvfrom(m_handle, (char*)data,
|
||||
size, 0, (sockaddr*)&address, &address_len);
|
||||
received = recvfrom(m_handle, (char *) data,
|
||||
size, 0, (struct sockaddr *) &address, &address_len);
|
||||
|
||||
if(received < 0)
|
||||
return -1;
|
||||
|
||||
unsigned int address_ip = ntohl(address.sin_addr.s_addr);
|
||||
unsigned int address_port = ntohs(address.sin_port);
|
||||
u16 address_port = ntohs(address.sin6_port);
|
||||
IPv6AddressBytes bytes;
|
||||
memcpy(bytes.bytes, address.sin6_addr.s6_addr, 16);
|
||||
sender = Address(&bytes, address_port);
|
||||
}
|
||||
else
|
||||
{
|
||||
struct sockaddr_in address;
|
||||
socklen_t address_len = sizeof(address);
|
||||
|
||||
received = recvfrom(m_handle, (char *) data,
|
||||
size, 0, (struct sockaddr *) &address, &address_len);
|
||||
|
||||
if(received < 0)
|
||||
return -1;
|
||||
|
||||
u32 address_ip = ntohl(address.sin_addr.s_addr);
|
||||
u16 address_port = ntohs(address.sin_port);
|
||||
|
||||
sender = Address(address_ip, address_port);
|
||||
}
|
||||
|
||||
if(DP){
|
||||
//dstream<<DPS<<"UDPSocket("<<(int)m_handle<<")::Receive(): sender=";
|
||||
dstream<<DPS<<(int)m_handle<<" <- ";
|
||||
sender.print();
|
||||
//dstream<<", received="<<received<<std::endl;
|
||||
dstream<<", size="<<received<<", data=";
|
||||
for(int i=0; i<received && i<20; i++){
|
||||
if(i%2==0) DEBUGPRINT(" ");
|
||||
unsigned int a = ((const unsigned char*)data)[i];
|
||||
if(socket_enable_debug_output)
|
||||
{
|
||||
// Print packet sender and size
|
||||
dstream << (int) m_handle << " <- ";
|
||||
sender.print(&dstream);
|
||||
dstream << ", size=" << received;
|
||||
|
||||
// Print packet contents
|
||||
dstream << ", data=";
|
||||
for(int i = 0; i < received && i < 20; i++)
|
||||
{
|
||||
if(i % 2 == 0)
|
||||
DEBUGPRINT(" ");
|
||||
unsigned int a = ((const unsigned char *) data)[i];
|
||||
DEBUGPRINT("%.2X", a);
|
||||
}
|
||||
if(received>20)
|
||||
dstream<<"...";
|
||||
dstream<<std::endl;
|
||||
if(received > 20)
|
||||
dstream << "...";
|
||||
|
||||
dstream << std::endl;
|
||||
}
|
||||
|
||||
return received;
|
||||
@ -351,42 +521,39 @@ bool UDPSocket::WaitData(int timeout_ms)
|
||||
struct timeval tv;
|
||||
tv.tv_sec = 0;
|
||||
tv.tv_usec = timeout_ms * 1000;
|
||||
|
||||
// select()
|
||||
result = select(m_handle+1, &readset, NULL, NULL, &tv);
|
||||
|
||||
if(result == 0){
|
||||
// Timeout
|
||||
/*dstream<<"Select timed out (timeout_ms="
|
||||
<<timeout_ms<<")"<<std::endl;*/
|
||||
if(result == 0)
|
||||
return false;
|
||||
}
|
||||
else if(result < 0 && errno == EINTR){
|
||||
else if(result < 0 && errno == EINTR)
|
||||
return false;
|
||||
}
|
||||
else if(result < 0){
|
||||
// Error
|
||||
#ifndef DISABLE_ERRNO
|
||||
dstream<<(int)m_handle<<": Select failed: "<<strerror(errno)<<std::endl;
|
||||
#endif
|
||||
else if(result < 0)
|
||||
{
|
||||
dstream << (int) m_handle << ": Select failed: "
|
||||
<< strerror(errno) << std::endl;
|
||||
|
||||
#ifdef _WIN32
|
||||
int e = WSAGetLastError();
|
||||
dstream<<(int)m_handle<<": WSAGetLastError()="<<e<<std::endl;
|
||||
if(e == 10004 /*=WSAEINTR*/)
|
||||
dstream << (int) m_handle << ": WSAGetLastError()="
|
||||
<< e << std::endl;
|
||||
if(e == 10004 /* = WSAEINTR */)
|
||||
{
|
||||
dstream<<"WARNING: Ignoring WSAEINTR."<<std::endl;
|
||||
dstream << "WARNING: Ignoring WSAEINTR." << std::endl;
|
||||
return false;
|
||||
}
|
||||
#endif
|
||||
|
||||
throw SocketException("Select failed");
|
||||
}
|
||||
else if(FD_ISSET(m_handle, &readset) == false){
|
||||
else if(FD_ISSET(m_handle, &readset) == false)
|
||||
{
|
||||
// No data
|
||||
//dstream<<"Select reported no data in m_handle"<<std::endl;
|
||||
return false;
|
||||
}
|
||||
|
||||
// There is data
|
||||
//dstream<<"Select reported data in m_handle"<<std::endl;
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
55
src/socket.h
55
src/socket.h
@ -20,7 +20,24 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
#ifndef SOCKET_HEADER
|
||||
#define SOCKET_HEADER
|
||||
|
||||
#ifdef _WIN32
|
||||
#ifndef WIN32_LEAN_AND_MEAN
|
||||
#define WIN32_LEAN_AND_MEAN
|
||||
#endif
|
||||
#ifndef _WIN32_WINNT
|
||||
#define _WIN32_WINNT 0x0501
|
||||
#endif
|
||||
#include <windows.h>
|
||||
#include <winsock2.h>
|
||||
#include <ws2tcpip.h>
|
||||
#else
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#endif
|
||||
|
||||
#include <ostream>
|
||||
#include <string.h>
|
||||
#include "irrlichttypes.h"
|
||||
#include "exceptions.h"
|
||||
|
||||
extern bool socket_enable_debug_output;
|
||||
@ -55,35 +72,48 @@ public:
|
||||
void sockets_init();
|
||||
void sockets_cleanup();
|
||||
|
||||
class IPv6AddressBytes
|
||||
{
|
||||
public:
|
||||
u8 bytes[16];
|
||||
IPv6AddressBytes() { memset(bytes, 0, 16); }
|
||||
};
|
||||
|
||||
class Address
|
||||
{
|
||||
public:
|
||||
Address();
|
||||
Address(unsigned int address, unsigned short port);
|
||||
Address(unsigned int a, unsigned int b,
|
||||
unsigned int c, unsigned int d,
|
||||
unsigned short port);
|
||||
Address(u32 address, u16 port);
|
||||
Address(u8 a, u8 b, u8 c, u8 d, u16 port);
|
||||
Address(const IPv6AddressBytes * ipv6_bytes, u16 port);
|
||||
bool operator==(Address &address);
|
||||
bool operator!=(Address &address);
|
||||
void Resolve(const char *name);
|
||||
unsigned int getAddress() const;
|
||||
struct sockaddr_in getAddress() const;
|
||||
unsigned short getPort() const;
|
||||
void setAddress(unsigned int address);
|
||||
void setAddress(unsigned int a, unsigned int b,
|
||||
unsigned int c, unsigned int d);
|
||||
void setAddress(u32 address);
|
||||
void setAddress(u8 a, u8 b, u8 c, u8 d);
|
||||
void setAddress(const IPv6AddressBytes * ipv6_bytes);
|
||||
struct sockaddr_in6 getAddress6() const;
|
||||
int getFamily() const;
|
||||
bool isIPv6() const;
|
||||
void setPort(unsigned short port);
|
||||
void print(std::ostream *s) const;
|
||||
void print() const;
|
||||
std::string serializeString() const;
|
||||
private:
|
||||
unsigned int m_address;
|
||||
unsigned short m_port;
|
||||
unsigned int m_addr_family;
|
||||
union
|
||||
{
|
||||
struct sockaddr_in ipv4;
|
||||
struct sockaddr_in6 ipv6;
|
||||
} m_address;
|
||||
u16 m_port; // Port is separate from sockaddr structures
|
||||
};
|
||||
|
||||
class UDPSocket
|
||||
{
|
||||
public:
|
||||
UDPSocket();
|
||||
UDPSocket(bool ipv6);
|
||||
~UDPSocket();
|
||||
void Bind(unsigned short port);
|
||||
//void Close();
|
||||
@ -98,6 +128,7 @@ public:
|
||||
private:
|
||||
int m_handle;
|
||||
int m_timeout_ms;
|
||||
int m_addr_family;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
38
src/test.cpp
38
src/test.cpp
@ -1293,7 +1293,36 @@ struct TestSocket: public TestBase
|
||||
void Run()
|
||||
{
|
||||
const int port = 30003;
|
||||
UDPSocket socket;
|
||||
|
||||
// IPv6 socket test
|
||||
{
|
||||
UDPSocket socket6(true);
|
||||
socket6.Bind(port);
|
||||
|
||||
const char sendbuffer[] = "hello world!";
|
||||
IPv6AddressBytes bytes;
|
||||
bytes.bytes[15] = 1;
|
||||
socket6.Send(Address(&bytes, port), sendbuffer, sizeof(sendbuffer));
|
||||
|
||||
sleep_ms(50);
|
||||
|
||||
char rcvbuffer[256];
|
||||
memset(rcvbuffer, 0, sizeof(rcvbuffer));
|
||||
Address sender;
|
||||
for(;;)
|
||||
{
|
||||
int bytes_read = socket6.Receive(sender, rcvbuffer, sizeof(rcvbuffer));
|
||||
if(bytes_read < 0)
|
||||
break;
|
||||
}
|
||||
//FIXME: This fails on some systems
|
||||
UASSERT(strncmp(sendbuffer, rcvbuffer, sizeof(sendbuffer))==0);
|
||||
UASSERT(memcmp(sender.getAddress6().sin6_addr.s6_addr, Address(&bytes, 0).getAddress6().sin6_addr.s6_addr, 16) == 0);
|
||||
}
|
||||
|
||||
// IPv4 socket test
|
||||
{
|
||||
UDPSocket socket(false);
|
||||
socket.Bind(port);
|
||||
|
||||
const char sendbuffer[] = "hello world!";
|
||||
@ -1312,7 +1341,8 @@ struct TestSocket: public TestBase
|
||||
}
|
||||
//FIXME: This fails on some systems
|
||||
UASSERT(strncmp(sendbuffer, rcvbuffer, sizeof(sendbuffer))==0);
|
||||
UASSERT(sender.getAddress() == Address(127,0,0,1, 0).getAddress());
|
||||
UASSERT(sender.getAddress().sin_addr.s_addr == Address(127,0,0,1, 0).getAddress().sin_addr.s_addr);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
@ -1412,11 +1442,11 @@ struct TestConnection: public TestBase
|
||||
Handler hand_client("client");
|
||||
|
||||
infostream<<"** Creating server Connection"<<std::endl;
|
||||
con::Connection server(proto_id, 512, 5.0, &hand_server);
|
||||
con::Connection server(proto_id, 512, 5.0, false, &hand_server);
|
||||
server.Serve(30001);
|
||||
|
||||
infostream<<"** Creating client Connection"<<std::endl;
|
||||
con::Connection client(proto_id, 512, 5.0, &hand_client);
|
||||
con::Connection client(proto_id, 512, 5.0, false, &hand_client);
|
||||
|
||||
UASSERT(hand_server.count == 0);
|
||||
UASSERT(hand_client.count == 0);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user