-/* +------------------------------------+
- * | 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) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2005-2007 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
+ * Copyright (C) 2006 William Pitcock <nenolod@dereferenced.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 <netinet/in.h>
#include <unistd.h>
#include <fcntl.h>
-#include <poll.h>
#include <netdb.h>
-#include <errno.h>
-#include "inspircd_config.h"
+#else
-/* macros to the relevant system address description structs */
-#ifdef IPV6
+#include "inspircd_win32wrapper.h"
-typedef struct sockaddr_in6 insp_sockaddr;
-typedef struct in6_addr insp_inaddr;
-#define AF_FAMILY AF_INET6
-#define PF_PROTOCOL PF_INET6
+#endif
-#else
+#include <cerrno>
-typedef struct sockaddr_in insp_sockaddr;
-typedef struct in_addr insp_inaddr;
-#define AF_FAMILY AF_INET
-#define PF_PROTOCOL PF_INET
+/* 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;
+ /** Return the size of the structure for syscall passing */
+ int 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); }
+ };
-#endif
+ 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];
-const char* insp_ntoa(insp_inaddr n);
-int insp_aton(const char* a, insp_inaddr* n);
+ 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, int 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;
+ };
-int OpenTCPSocket();
-bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr);
-int BindPorts(bool bail);
+ /** 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);
-#endif
+ /** 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);
+
+ /** Convert a binary sockaddr to an address-port pair
+ * @param sa The structure to convert
+ * @param addr the IP address
+ * @param port the port
+ * @return true if the conversion was successful, false if unknown address family
+ */
+ CoreExport bool satoap(const irc::sockets::sockaddrs& sa, std::string& addr, int &port);
+ }
+}
+
+#include "iohook.h"
+#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;
+ std::string bind_addr;
+ int bind_port;
+ /** Human-readable bind description */
+ std::string bind_desc;
+
+ /** The IOHook provider which handles connections on this socket,
+ * NULL if there is none.
+ */
+ dynamic_reference_nocheck<IOHookProvider> iohookprov;
+
+ /** Create a new listening socket
+ */
+ ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to);
+ /** Handle an I/O event
+ */
+ void HandleEvent(EventType et, int errornum = 0);
+ /** Close the socket
+ */
+ ~ListenSocket();
+
+ /** Handles sockets internals crap of a connection, convenience wrapper really
+ */
+ void AcceptInternal();
+
+ /** 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.
+ * @return True if the IO hook provider was found or none was given, false otherwise.
+ */
+ bool ResetIOHookProvider();
+};
projects / user / henk / code / inspircd.git / blobdiff