forked from Mirrorlandia_minetest/minetest
Infer ipv6_server from bind_address; fix client connect to IN(6)ADDR_ANY
This commit is contained in:
parent
edcad09dee
commit
6090e95cdc
@ -438,6 +438,7 @@
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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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# Ignored if bind_address is set.
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#ipv6_server = false
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#main_menu_script =
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65
src/game.cpp
65
src/game.cpp
@ -1147,27 +1147,34 @@ void the_game(bool &kill, bool random_input, InputHandler *input,
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draw_load_screen(text, device, font,0,25);
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delete[] text;
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infostream<<"Creating server"<<std::endl;
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server = new Server(map_dir, gamespec,
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simple_singleplayer_mode);
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std::string bind_str = g_settings->get("bind_address");
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Address bind_addr(0,0,0,0, port);
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if (bind_str != "")
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{
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try {
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bind_addr.Resolve(bind_str.c_str());
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address = bind_str;
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} catch (ResolveError &e) {
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infostream << "Resolving bind address \"" << bind_str
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<< "\" failed: " << e.what()
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<< " -- Listening on all addresses." << std::endl;
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if (g_settings->getBool("ipv6_server")) {
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bind_addr.setAddress((IPv6AddressBytes*) NULL);
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}
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}
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if (g_settings->getBool("ipv6_server")) {
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bind_addr.setAddress((IPv6AddressBytes*) NULL);
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}
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try {
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bind_addr.Resolve(bind_str.c_str());
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address = bind_str;
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} catch (ResolveError &e) {
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infostream << "Resolving bind address \"" << bind_str
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<< "\" failed: " << e.what()
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<< " -- Listening on all addresses." << std::endl;
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}
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if(bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
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error_message = L"Unable to listen on " +
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narrow_to_wide(bind_addr.serializeString()) +
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L" because IPv6 is disabled";
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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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return;
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}
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server = new Server(map_dir, gamespec,
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simple_singleplayer_mode,
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bind_addr.isIPv6());
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server->start(bind_addr);
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}
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@ -1193,31 +1200,33 @@ void the_game(bool &kill, bool random_input, InputHandler *input,
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delete[] text;
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}
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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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try {
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connect_address.Resolve(address.c_str());
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if (connect_address.isZero()) { // i.e. INADDR_ANY, IN6ADDR_ANY
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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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if (connect_address.isIPv6()) {
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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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} else {
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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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catch(ResolveError &e) {
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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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if(connect_address.isIPv6() && !g_settings->getBool("enable_ipv6")) {
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error_message = L"Unable to connect to " +
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narrow_to_wide(connect_address.serializeString()) +
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L" because IPv6 is disabled";
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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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38
src/main.cpp
38
src/main.cpp
@ -1023,21 +1023,6 @@ int main(int argc, char *argv[])
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if(port == 0)
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port = 30000;
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// Bind address
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std::string bind_str = g_settings->get("bind_address");
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Address bind_addr(0,0,0,0, port);
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try {
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bind_addr.Resolve(bind_str.c_str());
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} catch (ResolveError &e) {
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infostream << "Resolving bind address \"" << bind_str
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<< "\" failed: " << e.what()
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<< " -- Listening on all addresses." << std::endl;
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if (g_settings->getBool("ipv6_server")) {
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bind_addr.setAddress((IPv6AddressBytes*) NULL);
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}
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}
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// World directory
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std::string commanded_world = "";
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if(cmd_args.exists("world"))
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@ -1223,8 +1208,29 @@ int main(int argc, char *argv[])
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}
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verbosestream<<_("Using gameid")<<" ["<<gamespec.id<<"]"<<std::endl;
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// Bind address
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std::string bind_str = g_settings->get("bind_address");
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Address bind_addr(0,0,0,0, port);
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if (g_settings->getBool("ipv6_server")) {
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bind_addr.setAddress((IPv6AddressBytes*) NULL);
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}
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try {
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bind_addr.Resolve(bind_str.c_str());
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} catch (ResolveError &e) {
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infostream << "Resolving bind address \"" << bind_str
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<< "\" failed: " << e.what()
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<< " -- Listening on all addresses." << std::endl;
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}
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if(bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
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errorstream << "Unable to listen on "
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<< bind_addr.serializeString()
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<< L" because IPv6 is disabled" << std::endl;
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return 1;
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}
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// Create server
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Server server(world_path, gamespec, false);
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Server server(world_path, gamespec, false, bind_addr.isIPv6());
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// Database migration
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if (cmd_args.exists("migrate")) {
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@ -166,7 +166,8 @@ v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
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Server::Server(
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const std::string &path_world,
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const SubgameSpec &gamespec,
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bool simple_singleplayer_mode
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bool simple_singleplayer_mode,
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bool ipv6
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):
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m_path_world(path_world),
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m_gamespec(gamespec),
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@ -176,7 +177,7 @@ Server::Server(
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m_con(PROTOCOL_ID,
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512,
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CONNECTION_TIMEOUT,
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g_settings->getBool("enable_ipv6") && g_settings->getBool("ipv6_server"),
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ipv6,
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this),
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m_banmanager(NULL),
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m_rollback(NULL),
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@ -174,7 +174,8 @@ public:
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Server(
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const std::string &path_world,
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const SubgameSpec &gamespec,
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bool simple_singleplayer_mode
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bool simple_singleplayer_mode,
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bool ipv6
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);
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~Server();
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void start(Address bind_addr);
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@ -143,6 +143,15 @@ bool Address::operator!=(Address &address)
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void Address::Resolve(const char *name)
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{
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if (!name || name[0] == 0) {
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if (m_addr_family == AF_INET) {
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setAddress((u32) 0);
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} else if (m_addr_family == AF_INET6) {
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setAddress((IPv6AddressBytes*) 0);
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}
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return;
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}
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struct addrinfo *resolved, hints;
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memset(&hints, 0, sizeof(hints));
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@ -251,6 +260,18 @@ bool Address::isIPv6() const
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return m_addr_family == AF_INET6;
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}
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bool Address::isZero() const
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{
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if (m_addr_family == AF_INET) {
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return m_address.ipv4.sin_addr.s_addr == 0;
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} else if (m_addr_family == AF_INET6) {
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static const char zero[16] = {0};
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return memcmp(m_address.ipv6.sin6_addr.s6_addr,
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zero, 16) == 0;
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}
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return false;
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}
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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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Address(const IPv6AddressBytes * ipv6_bytes, u16 port);
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bool operator==(Address &address);
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bool operator!=(Address &address);
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// Resolve() may throw ResolveError (address is unchanged in this case)
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void Resolve(const char *name);
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struct sockaddr_in getAddress() const;
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unsigned short getPort() const;
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@ -97,6 +98,7 @@ public:
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struct sockaddr_in6 getAddress6() const;
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int getFamily() const;
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bool isIPv6() const;
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bool isZero() const;
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void setPort(unsigned short port);
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void print(std::ostream *s) const;
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std::string serializeString() const;
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