X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fsocket.h;h=1ea1332e277eab80ea2a231fc5d649127e325ec8;hb=635cb9d65f6d7f6758ae8ed874da00c8d94b6e39;hp=7ff40794c7928574f6e15af9555164466d461297;hpb=18310fc8b7dbb0dcda3f0fa10d2b37e2b1457c10;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/socket.h b/include/socket.h index 7ff40794c..1ea1332e2 100644 --- a/include/socket.h +++ b/include/socket.h @@ -1,20 +1,34 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2013, 2015-2016 Attila Molnar + * Copyright (C) 2012-2013, 2017-2019 Sadie Powell + * Copyright (C) 2012 Robby + * Copyright (C) 2012 ChrisTX + * Copyright (C) 2012 Adam + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2008 Pippijn van Steenhoven + * Copyright (C) 2007-2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006, 2008, 2010 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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 -#ifndef WIN32 +#pragma once + +#ifndef _WIN32 #include #include @@ -22,6 +36,7 @@ #include #include #include +#include #include #include #include @@ -33,8 +48,7 @@ #endif -#include -#include "socketengine.h" +#include /* Contains irc-specific definitions */ namespace irc @@ -45,54 +59,49 @@ namespace irc */ namespace sockets { - - /* macros to the relevant system address description structs */ -#ifdef IPV6 - /** insp_sockaddr for ipv6 - */ - typedef struct sockaddr_in6 insp_sockaddr; - /** insp_inaddr for ipv6 - */ - typedef struct in6_addr insp_inaddr; -#define AF_FAMILY AF_INET6 -#define PF_PROTOCOL PF_INET6 - -#else - /** insp_sockaddr for ipv4 - */ - typedef struct sockaddr_in insp_sockaddr; - /** insp_inaddr for ipv4 - */ - typedef struct in_addr insp_inaddr; -#define AF_FAMILY AF_INET -#define PF_PROTOCOL PF_INET - -#endif - /** Match raw binary data using CIDR rules. - * - * This function will use binary comparison to compare the - * two bit sequences, address and mask, up to mask_bits - * bits in size. If they match, it will return true. - * @param address The whole address, of 4 or 16 bytes in length - * @param mask The mask, from 1 to 16 bytes in length, anything - * from 1 to 128 bits of which is significant - * @param mask_Bits How many bits of the mask parameter are significant - * for this comparison. - * @returns True if the first mask_bits of address matches the first - * mask_bits of mask. - */ - CoreExport bool MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits); - - /** Match CIDR, without matching username/nickname parts. - * - * This function will compare a human-readable address against a human- - * readable CIDR mask, for example 1.2.3.4 against 1.2.0.0/16. This - * method supports both IPV4 and IPV6 addresses. - * @param address The human readable address, e.g. 1.2.3.4 - * @param cidr_mask The human readable mask, e.g. 1.2.0.0/16 - * @return True if the mask matches the address - */ - CoreExport bool MatchCIDR(const char* address, const char* cidr_mask); + 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); } + }; + + 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]; + + 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; + }; /** Match CIDR, including an optional username/nickname part. * @@ -103,104 +112,98 @@ namespace irc * 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 char* address, const char* cidr_mask, bool match_with_username); + CoreExport bool MatchCIDR(const std::string &address, const std::string &cidr_mask, bool match_with_username); - /** Convert an insp_inaddr into human readable form. - * - * @param n An insp_inaddr (IP address) structure - * @return A human-readable address. IPV6 addresses - * will be shortened to remove fields which are 0. + /** 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 const char* insp_ntoa(insp_inaddr n); - - /** Convert a human-readable address into an insp_inaddr. - * - * @param a A human-readable address - * @param n An insp_inaddr struct which the result - * will be copied into on success. - * @return This method will return a negative value if address - * does not contain a valid address family. 0 if the address is - * does not contain a valid string representing a valid network - * address. A positive value is returned if the network address - * was successfully converted. - - * or any other number upon failure. + CoreExport bool aptosa(const std::string& addr, int port, irc::sockets::sockaddrs& sa); + + /** 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 int insp_aton(const char* a, insp_inaddr* n); + CoreExport bool untosa(const std::string& path, irc::sockets::sockaddrs& sa); - /** Create a new valid file descriptor using socket() - * @return On return this function will return a value >= 0 for success, - * or a negative value upon failure (negative values are invalid file - * descriptors) + /** 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 int OpenTCPSocket(char* addr, int socktype = SOCK_STREAM); + CoreExport bool isunix(const std::string& file); } } +/** Represents information about a failed port binding. */ +struct CoreExport FailedPort +{ + /** The error which happened during binding. */ + int error; + + /** The endpoint on which we were attempting to bind. */ + irc::sockets::sockaddrs sa; + + /** 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) + { + } +}; + +/** A list of failed port bindings, used for informational purposes on startup */ +typedef std::vector 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 { - protected: - /** The creator/owner of this object - */ - InspIRCd* ServerInstance; - /** Socket description (shown in stats p) */ - std::string desc; - /** Socket address family */ - int family; - /** Address socket is bound to */ - std::string bind_addr; - /** Port socket is bound to */ - int bind_port; - - static sockaddr *sock_us; + public: + reference bind_tag; + const irc::sockets::sockaddrs bind_sa; - static sockaddr *client; + class IOHookProvRef : public dynamic_reference_nocheck + { + public: + IOHookProvRef() + : dynamic_reference_nocheck(NULL, std::string()) + { + } + }; - static sockaddr *raddr; + typedef TR1NS::array IOHookProvList; - static unsigned int socketcount; + /** IOHook providers for handling connections on this socket, + * may be empty. + */ + IOHookProvList iohookprovs; - public: /** Create a new listening socket */ - ListenSocket(InspIRCd* Instance, int port, char* addr); - /** Handle an I/O event - */ - void HandleEvent(EventType et, int errornum = 0); + ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to); /** Close the socket */ ~ListenSocket(); - /** Set descriptive text - */ - void SetDescription(const std::string &description) - { - desc = description; - } - /** Get description for socket - */ - const std::string& GetDescription() - { - return desc; - } - /** Get port number for socket + + /** Handles new connections, called by the socket engine */ - int GetPort() - { - return bind_port; - } - /** Get IP address socket is bound to + 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. */ - std::string &GetIP() - { - return bind_addr; - } + void ResetIOHookProvider(); }; - -#endif -