/*
* InspIRCd -- Internet Relay Chat Daemon
*
+ * Copyright (C) 2019-2020 Matt Schatz <genius3000@g3k.solutions>
+ * Copyright (C) 2013-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2013, 2016-2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
+ * Copyright (C) 2013 Adam <Adam@anope.org>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2009-2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to)
: bind_tag(tag)
+ , bind_sa(bind_to)
{
- irc::sockets::satoap(bind_to, bind_addr, bind_port);
- bind_desc = bind_to.str();
-
- fd = socket(bind_to.sa.sa_family, SOCK_STREAM, 0);
+ // Are we creating a UNIX socket?
+ if (bind_to.family() == AF_UNIX)
+ {
+ // Is 'replace' enabled?
+ const bool replace = tag->getBool("replace");
+ if (replace && irc::sockets::isunix(bind_to.str()))
+ unlink(bind_to.str().c_str());
+ }
- if (this->fd == -1)
+ fd = socket(bind_to.family(), SOCK_STREAM, 0);
+ if (!HasFd())
return;
#ifdef IPV6_V6ONLY
* is "::" or an IPv6 address, disable support so that an IPv4 bind will
* work on the port (by us or another application).
*/
- if (bind_to.sa.sa_family == AF_INET6)
+ if (bind_to.family() == AF_INET6)
{
std::string addr = tag->getString("address");
/* This must be >= sizeof(DWORD) on Windows */
}
#endif
+ if (tag->getBool("free"))
+ {
+ socklen_t enable = 1;
+#if defined IP_FREEBIND // Linux 2.4+
+ setsockopt(fd, SOL_IP, IP_FREEBIND, &enable, sizeof(enable));
+#elif defined IP_BINDANY // FreeBSD
+ setsockopt(fd, IPPROTO_IP, IP_BINDANY, &enable, sizeof(enable));
+#elif defined SO_BINDANY // NetBSD/OpenBSD
+ setsockopt(fd, SOL_SOCKET, SO_BINDANY, &enable, sizeof(enable));
+#else
+ (void)enable;
+#endif
+ }
+
SocketEngine::SetReuse(fd);
int rv = SocketEngine::Bind(this->fd, bind_to);
if (rv >= 0)
rv = SocketEngine::Listen(this->fd, ServerInstance->Config->MaxConn);
- int timeout = tag->getInt("defer", 0);
+ if (bind_to.family() == AF_UNIX)
+ {
+ const std::string permissionstr = tag->getString("permissions");
+ unsigned int permissions = strtoul(permissionstr.c_str(), NULL, 8);
+ if (permissions && permissions <= 07777)
+ chmod(bind_to.str().c_str(), permissions);
+ }
+
+ // Default defer to on for TLS listeners because in TLS the client always speaks first
+ unsigned int timeoutdef = tag->getString("sslprofile", tag->getString("ssl")).empty() ? 0 : 3;
+ int timeout = tag->getDuration("defer", timeoutdef, 0, 60);
if (timeout && !rv)
{
#if defined TCP_DEFER_ACCEPT
ListenSocket::~ListenSocket()
{
- if (this->GetFd() > -1)
+ if (this->HasFd())
{
ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Shut down listener on fd %d", this->fd);
SocketEngine::Shutdown(this, 2);
+
if (SocketEngine::Close(this) != 0)
ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Failed to cancel listener: %s", strerror(errno));
+
+ if (bind_sa.family() == AF_UNIX && unlink(bind_sa.un.sun_path))
+ ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Failed to unlink UNIX socket: %s", strerror(errno));
}
}
void ListenSocket::OnEventHandlerRead()
{
irc::sockets::sockaddrs client;
- irc::sockets::sockaddrs server;
+ irc::sockets::sockaddrs server(bind_sa);
socklen_t length = sizeof(client);
int incomingSockfd = SocketEngine::Accept(this, &client.sa, &length);
- ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Accepting connection on socket %s fd %d", bind_desc.c_str(), incomingSockfd);
+ ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Accepting connection on socket %s fd %d", bind_sa.str().c_str(), incomingSockfd);
if (incomingSockfd < 0)
{
ServerInstance->stats.Refused++;
if (getsockname(incomingSockfd, &server.sa, &sz))
{
ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Can't get peername: %s", strerror(errno));
- irc::sockets::aptosa(bind_addr, bind_port, server);
}
- if (client.sa.sa_family == AF_INET6)
+ if (client.family() == AF_INET6)
{
/*
* This case is the be all and end all patch to catch and nuke 4in6
memcpy(&server.in4.sin_addr.s_addr, server.in6.sin6_addr.s6_addr + 12, sizeof(uint32_t));
}
}
+ else if (client.family() == AF_UNIX)
+ {
+ // Clients connecting via UNIX sockets don't have paths so give them
+ // the server path as defined in RFC 1459 section 8.1.1.
+ //
+ // strcpy is safe here because sizeof(sockaddr_un.sun_path) is equal on both.
+ strcpy(client.un.sun_path, server.un.sun_path);
+ }
SocketEngine::NonBlocking(incomingSockfd);
FIRST_MOD_RESULT(OnAcceptConnection, res, (incomingSockfd, this, &client, &server));
if (res == MOD_RES_PASSTHRU)
{
- std::string type = bind_tag->getString("type", "clients");
- if (type == "clients")
+ const std::string type = bind_tag->getString("type", "clients", 1);
+ if (stdalgo::string::equalsci(type, "clients"))
{
ServerInstance->Users->AddUser(incomingSockfd, this, &client, &server);
res = MOD_RES_ALLOW;
{
ServerInstance->stats.Refused++;
ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "Refusing connection on %s - %s",
- bind_desc.c_str(), res == MOD_RES_DENY ? "Connection refused by module" : "Module for this port not found");
+ bind_sa.str().c_str(), res == MOD_RES_DENY ? "Connection refused by module" : "Module for this port not found");
SocketEngine::Close(incomingSockfd);
}
}
curr.SetProvider(std::string());
}
- std::string provname = bind_tag->getString("ssl");
+ std::string provname = bind_tag->getString("sslprofile", bind_tag->getString("ssl"));
if (!provname.empty())
provname.insert(0, "ssl/");
- // SSL should be the last
+ // TLS (SSL) should be the last
iohookprovs.back().SetProvider(provname);
}
projects / user / henk / code / inspircd.git / blobdiff