X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fsocket.h;h=47e89070f0fb034dc21f165c3050e2a3501bfbe4;hb=0e6b18ff9180fc7794cea53d0566411b9afb0d7e;hp=458cbe69045dd3f06ad507f9fbe1dd7cea3a0d07;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/socket.h b/include/socket.h index 458cbe690..47e89070f 100644 --- a/include/socket.h +++ b/include/socket.h @@ -1 +1,171 @@ -/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #ifndef INSPIRCD_SOCKET_H #define INSPIRCD_SOCKET_H #ifndef WIN32 #include #include #include #include #include #include #include #include #include #include #else #include "inspircd_win32wrapper.h" #endif #include #include "inspircd_config.h" #include "socketengine.h" /* Accept Define */ #ifdef CONFIG_USE_IOCP /* IOCP wrapper for accept() */ #define _accept(s, addr, addrlen) __accept_socket(s, addr, addrlen, m_acceptEvent) /* IOCP wrapper for getsockname() */ #define _getsockname(fd, sockptr, socklen) __getsockname(fd, sockptr, socklen, m_acceptEvent) /* IOCP wrapper for recvfrom() */ #define _recvfrom(s, buf, len, flags, from, fromlen) __recvfrom(s, buf, len, flags, from, fromlen, ((IOCPEngine*)ServerInstance->SE)->udp_ov) #else /* No wrapper for recvfrom() */ #define _recvfrom recvfrom /* No wrapper for accept() */ #define _accept accept /* No wrapper for getsockname() */ #define _getsockname getsockname #endif /* 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 { /* 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); /** 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 * @return True if the mask matches the address */ CoreExport bool MatchCIDR(const char* address, const char* 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. */ 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 int insp_aton(const char* a, insp_inaddr* n); /** Make a socket file descriptor a blocking socket * @param s A valid file descriptor */ CoreExport void Blocking(int s); /** Make a socket file descriptor into a nonblocking socket * @param s A valid file descriptor */ CoreExport void NonBlocking(int s); /** 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) */ CoreExport int OpenTCPSocket(char* addr, int socktype = SOCK_STREAM); } } /** This class handles incoming connections on client ports. * It will create a new userrec 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; 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); /** 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 */ int GetPort() { return bind_port; } /** Get IP address socket is bound to */ std::string &GetIP() { return bind_addr; } }; #endif \ No newline at end of file +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * 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 . + */ + + +#pragma once + +#ifndef _WIN32 + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#else + +#include "inspircd_win32wrapper.h" + +#endif + +#include + +/* 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); } + }; + + 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. + * + * 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); + } +} + +/** 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 +{ + public: + reference bind_tag; + const irc::sockets::sockaddrs bind_sa; + + class IOHookProvRef : public dynamic_reference_nocheck + { + public: + IOHookProvRef() + : dynamic_reference_nocheck(NULL, std::string()) + { + } + }; + + typedef TR1NS::array 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(); +};