X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fsocket.h;h=c292b7010b915262d3ad03920f39acdfecf39d81;hb=99f79a4e5c3abbe91a03216824e7659051872054;hp=01005305b1177d8d76ba4f24424a460fde844d40;hpb=4789b3f6536ef8267c79c7cb3ee6678546c2150b;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/socket.h b/include/socket.h index 01005305b..c292b7010 100644 --- a/include/socket.h +++ b/include/socket.h @@ -1,21 +1,30 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * 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 + * Copyright (C) 2005-2007 Craig Edwards + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2007 Robin Burchell + * Copyright (C) 2006 Oliver Lupton + * Copyright (C) 2006 William Pitcock * - * --------------------------------------------------- + * 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 . */ -#ifndef INSPIRCD_SOCKET_H -#define INSPIRCD_SOCKET_H + +#pragma once + +#ifndef _WIN32 #include #include @@ -26,29 +35,135 @@ #include #include #include -#include #include -#include -#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 +#endif -#else +#include -typedef struct sockaddr_in insp_sockaddr; -typedef struct in_addr insp_inaddr; -#define AF_FAMILY AF_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]; -int OpenTCPSocket(); -bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr); -int BindPorts(bool bail); + 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; + }; -#endif + /** 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); + + /** 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 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 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(); +};