-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * Copyright (C) 2013, 2015-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012-2013, 2017-2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
+ * Copyright (C) 2012 Adam <Adam@anope.org>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
- * ---------------------------------------------------
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef INSPIRCD_SOCKET_H
-#define INSPIRCD_SOCKET_H
+
+#pragma once
+
+#ifndef _WIN32
#include <arpa/inet.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
+#include <sys/un.h>
#include <netinet/in.h>
#include <unistd.h>
#include <fcntl.h>
-#include <poll.h>
#include <netdb.h>
-#include <errno.h>
-#include "inspircd_config.h"
+#else
+
+#include "inspircd_win32wrapper.h"
+
+#endif
+#include <cerrno>
+
+/* Contains irc-specific definitions */
namespace irc
{
+ /** This namespace contains various protocol-independent helper classes.
+ * It also contains some types which are often used by the core and modules
+ * in place of inet_* functions and types.
+ */
namespace sockets
{
+ union CoreExport sockaddrs
+ {
+ struct sockaddr sa;
+ struct sockaddr_in in4;
+ struct sockaddr_in6 in6;
+ struct sockaddr_un un;
+ /** Return the family of the socket (e.g. AF_INET). */
+ int family() const;
+ /** Return the size of the structure for syscall passing */
+ socklen_t sa_size() const;
+ /** Return port number or -1 if invalid */
+ int port() const;
+ /** Return IP only */
+ std::string addr() const;
+ /** Return human-readable IP/port pair */
+ std::string str() const;
+ bool operator==(const sockaddrs& other) const;
+ inline bool operator!=(const sockaddrs& other) const { return !(*this == other); }
+ };
- /* macros to the relevant system address description structs */
-#ifdef IPV6
+ struct CoreExport cidr_mask
+ {
+ /** Type, AF_INET or AF_INET6 */
+ unsigned char type;
+ /** Length of the mask in bits (0-128) */
+ unsigned char length;
+ /** Raw bits. Unused bits must be zero */
+ unsigned char bits[16];
- typedef struct sockaddr_in6 insp_sockaddr;
- typedef struct in6_addr insp_inaddr;
-#define AF_FAMILY AF_INET6
-#define PF_PROTOCOL PF_INET6
+ cidr_mask() {}
+ /** Construct a CIDR mask from the string. Will normalize (127.0.0.1/8 => 127.0.0.0/8). */
+ cidr_mask(const std::string& mask);
+ /** Construct a CIDR mask of a given length from the given address */
+ cidr_mask(const irc::sockets::sockaddrs& addr, unsigned char len);
+ /** Equality of bits, type, and length */
+ bool operator==(const cidr_mask& other) const;
+ /** Ordering defined for maps */
+ bool operator<(const cidr_mask& other) const;
+ /** Match within this CIDR? */
+ bool match(const irc::sockets::sockaddrs& addr) const;
+ /** Human-readable string */
+ std::string str() const;
+ };
-#else
+ /** Match CIDR, including an optional username/nickname part.
+ *
+ * This function will compare a human-readable address (plus
+ * optional username and nickname) against a human-readable
+ * CIDR mask, for example joe!bloggs\@1.2.3.4 against
+ * *!bloggs\@1.2.0.0/16. This method supports both IPV4 and
+ * IPV6 addresses.
+ * @param address The human readable address, e.g. fred\@1.2.3.4
+ * @param cidr_mask The human readable mask, e.g. *\@1.2.0.0/16
+ * @param match_with_username Does the mask include a nickname segment?
+ * @return True if the mask matches the address
+ */
+ CoreExport bool MatchCIDR(const std::string &address, const std::string &cidr_mask, bool match_with_username);
- typedef struct sockaddr_in insp_sockaddr;
- typedef struct in_addr insp_inaddr;
-#define AF_FAMILY AF_INET
-#define PF_PROTOCOL PF_INET
+ /** Convert an address-port pair into a binary sockaddr
+ * @param addr The IP address, IPv4 or IPv6
+ * @param port The port, 0 for unspecified
+ * @param sa The structure to place the result in. Will be zeroed prior to conversion
+ * @return true if the conversion was successful, false if not.
+ */
+ CoreExport bool aptosa(const std::string& addr, int port, irc::sockets::sockaddrs& sa);
-#endif
+ /** Convert a UNIX socket path to a binary sockaddr.
+ * @param path The path to the UNIX socket.
+ * @param sa The structure to place the result in. Will be zeroed prior to conversion.
+ * @return True if the conversion was successful; otherwise, false.
+ */
+ CoreExport bool untosa(const std::string& path, irc::sockets::sockaddrs& sa);
- bool MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits);
- bool MatchCIDR(const char* address, const char* cidr_mask);
- bool MatchCIDR(const char* address, const char* cidr_mask, bool match_with_username);
+ /** Determines whether the specified file is a UNIX socket.
+ * @param file The path to the file to check.
+ * @return True if the file is a UNIX socket; otherwise, false.
+ */
+ CoreExport bool isunix(const std::string& file);
+ }
+}
- const char* insp_ntoa(insp_inaddr n);
- int insp_aton(const char* a, insp_inaddr* n);
+/** Represents information about a failed port binding. */
+struct CoreExport FailedPort
+{
+ /** The error which happened during binding. */
+ int error;
- void Blocking(int s);
- void NonBlocking(int s);
+ /** The endpoint on which we were attempting to bind. */
+ irc::sockets::sockaddrs sa;
- int OpenTCPSocket();
- };
+ /** The config tag that the listener was created from. */
+ ConfigTag* tag;
+
+ FailedPort(int err, irc::sockets::sockaddrs& ep, ConfigTag* cfg)
+ : error(err)
+ , sa(ep)
+ , tag(cfg)
+ {
+ }
};
-#endif
+/** A list of failed port bindings, used for informational purposes on startup */
+typedef std::vector<FailedPort> FailedPortList;
+
+#include "socketengine.h"
+
+/** This class handles incoming connections on client ports.
+ * It will create a new User for every valid connection
+ * and assign it a file descriptor.
+ */
+class CoreExport ListenSocket : public EventHandler
+{
+ public:
+ reference<ConfigTag> bind_tag;
+ const irc::sockets::sockaddrs bind_sa;
+
+ class IOHookProvRef : public dynamic_reference_nocheck<IOHookProvider>
+ {
+ public:
+ IOHookProvRef()
+ : dynamic_reference_nocheck<IOHookProvider>(NULL, std::string())
+ {
+ }
+ };
+
+ typedef TR1NS::array<IOHookProvRef, 2> IOHookProvList;
+
+ /** IOHook providers for handling connections on this socket,
+ * may be empty.
+ */
+ IOHookProvList iohookprovs;
+
+ /** Create a new listening socket
+ */
+ ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to);
+ /** Close the socket
+ */
+ ~ListenSocket();
+
+ /** Handles new connections, called by the socket engine
+ */
+ void OnEventHandlerRead() CXX11_OVERRIDE;
+
+ /** Inspects the bind block belonging to this socket to set the name of the IO hook
+ * provider which this socket will use for incoming connections.
+ */
+ void ResetIOHookProvider();
+};
projects / user / henk / code / inspircd.git / blobdiff