-/* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#ifndef INSPIRCD_SOCKET_H
\r#define INSPIRCD_SOCKET_H
\r\r#ifndef WIN32
\r\r#include <arpa/inet.h>
\r#include <sys/time.h>
\r#include <sys/resource.h>
\r#include <sys/types.h>
\r#include <sys/socket.h>
\r#include <sys/stat.h>
\r#include <netinet/in.h>
\r#include <unistd.h>
\r#include <fcntl.h>
\r#include <netdb.h>
\r\r#else
\r\r#include "inspircd_win32wrapper.h"
\r\r#endif
\r\r#include <errno.h>
\r#include "inspircd_config.h"
\r#include "socketengine.h"
\r\r/* Accept Define */
\r#ifdef CONFIG_USE_IOCP
\r/* IOCP wrapper for accept() */
\r#define _accept(s, addr, addrlen) __accept_socket(s, addr, addrlen, m_acceptEvent)
\r/* IOCP wrapper for getsockname() */
\r#define _getsockname(fd, sockptr, socklen) __getsockname(fd, sockptr, socklen, m_acceptEvent)
\r/* IOCP wrapper for recvfrom() */
\r#define _recvfrom(s, buf, len, flags, from, fromlen) __recvfrom(s, buf, len, flags, from, fromlen, ((IOCPEngine*)ServerInstance->SE)->udp_ov)
\r#else
\r/* No wrapper for recvfrom() */
\r#define _recvfrom recvfrom
\r/* No wrapper for accept() */
\r#define _accept accept
\r/* No wrapper for getsockname() */
\r#define _getsockname getsockname
\r#endif
\r\r/* Contains irc-specific definitions */
\rnamespace irc
\r{
\r /** This namespace contains various protocol-independent helper classes.
\r * It also contains some types which are often used by the core and modules
\r * in place of inet_* functions and types.
\r */
\r namespace sockets
\r {
\r\r /* macros to the relevant system address description structs */
\r#ifdef IPV6
\r /** insp_sockaddr for ipv6
\r */
\r typedef struct sockaddr_in6 insp_sockaddr;
\r /** insp_inaddr for ipv6
\r */
\r typedef struct in6_addr insp_inaddr;
\r#define AF_FAMILY AF_INET6
\r#define PF_PROTOCOL PF_INET6
\r\r#else
\r /** insp_sockaddr for ipv4
\r */
\r typedef struct sockaddr_in insp_sockaddr;
\r /** insp_inaddr for ipv4
\r */
\r typedef struct in_addr insp_inaddr;
\r#define AF_FAMILY AF_INET
\r#define PF_PROTOCOL PF_INET
\r\r#endif
\r /** Match raw binary data using CIDR rules.
\r *
\r * This function will use binary comparison to compare the
\r * two bit sequences, address and mask, up to mask_bits
\r * bits in size. If they match, it will return true.
\r * @param address The whole address, of 4 or 16 bytes in length
\r * @param mask The mask, from 1 to 16 bytes in length, anything
\r * from 1 to 128 bits of which is significant
\r * @param mask_Bits How many bits of the mask parameter are significant
\r * for this comparison.
\r * @returns True if the first mask_bits of address matches the first
\r * mask_bits of mask.
\r */
\r CoreExport bool MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits);
\r\r /** Match CIDR, without matching username/nickname parts.
\r *
\r * This function will compare a human-readable address against a human-
\r * readable CIDR mask, for example 1.2.3.4 against 1.2.0.0/16. This
\r * method supports both IPV4 and IPV6 addresses.
\r * @param address The human readable address, e.g. 1.2.3.4
\r * @param cidr_mask The human readable mask, e.g. 1.2.0.0/16
\r * @return True if the mask matches the address
\r */
\r CoreExport bool MatchCIDR(const char* address, const char* cidr_mask);
\r\r /** Match CIDR, including an optional username/nickname part.
\r *
\r * This function will compare a human-readable address (plus
\r * optional username and nickname) against a human-readable
\r * CIDR mask, for example joe!bloggs\@1.2.3.4 against
\r * *!bloggs\@1.2.0.0/16. This method supports both IPV4 and
\r * IPV6 addresses.
\r * @param address The human readable address, e.g. fred\@1.2.3.4
\r * @param cidr_mask The human readable mask, e.g. *\@1.2.0.0/16
\r * @return True if the mask matches the address
\r */
\r CoreExport bool MatchCIDR(const char* address, const char* cidr_mask, bool match_with_username);
\r\r /** Convert an insp_inaddr into human readable form.
\r *
\r * @param n An insp_inaddr (IP address) structure
\r * @return A human-readable address. IPV6 addresses
\r * will be shortened to remove fields which are 0.
\r */
\r CoreExport const char* insp_ntoa(insp_inaddr n);
\r\r /** Convert a human-readable address into an insp_inaddr.
\r *
\r * @param a A human-readable address
\r * @param n An insp_inaddr struct which the result
\r * will be copied into on success.
\r * @return This method will return a negative value if address
\r * does not contain a valid address family. 0 if the address is
\r * does not contain a valid string representing a valid network
\r * address. A positive value is returned if the network address
\r * was successfully converted.
\r\r * or any other number upon failure.
\r */
\r CoreExport int insp_aton(const char* a, insp_inaddr* n);
\r\r /** Make a socket file descriptor a blocking socket
\r * @param s A valid file descriptor
\r */
\r CoreExport void Blocking(int s);
\r\r /** Make a socket file descriptor into a nonblocking socket
\r * @param s A valid file descriptor
\r */
\r CoreExport void NonBlocking(int s);
\r\r /** Create a new valid file descriptor using socket()
\r * @return On return this function will return a value >= 0 for success,
\r * or a negative value upon failure (negative values are invalid file
\r * descriptors)
\r */
\r CoreExport int OpenTCPSocket(char* addr, int socktype = SOCK_STREAM);
\r }
\r}
\r\r/** This class handles incoming connections on client ports.
\r * It will create a new userrec for every valid connection
\r * and assign it a file descriptor.
\r */
\rclass CoreExport ListenSocket : public EventHandler
\r{
\r protected:
\r /** The creator/owner of this object
\r */
\r InspIRCd* ServerInstance;
\r /** Socket description (shown in stats p) */
\r std::string desc;
\r /** Socket address family */
\r int family;
\r /** Address socket is bound to */
\r std::string bind_addr;
\r /** Port socket is bound to */
\r int bind_port;
\r public:
\r /** Create a new listening socket
\r */
\r ListenSocket(InspIRCd* Instance, int port, char* addr);
\r /** Handle an I/O event
\r */
\r void HandleEvent(EventType et, int errornum = 0);
\r /** Close the socket
\r */
\r ~ListenSocket();
\r /** Set descriptive text
\r */
\r void SetDescription(const std::string &description)
\r {
\r desc = description;
\r }
\r /** Get description for socket
\r */
\r const std::string& GetDescription()
\r {
\r return desc;
\r }
\r /** Get port number for socket
\r */
\r int GetPort()
\r {
\r return bind_port;
\r }
\r /** Get IP address socket is bound to
\r */
\r std::string &GetIP()
\r {
\r return bind_addr;
\r }
\r};
\r\r#endif
\r\r\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * 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
+
+#ifndef WIN32
+
+#include <arpa/inet.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <netdb.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;
+ /** 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); }
+ };
+
+ 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, 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;
+ };
+
+ /** 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);
+
+ /** Return the size of the structure for syscall passing */
+ inline int sa_size(const irc::sockets::sockaddrs& sa) { return sa.sa_size(); }
+
+ /** 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);
+
+ /** Convert a binary sockaddr to a user-readable string.
+ * This means IPv6 addresses are written as [::1]:6667, and *:6668 is used for 0.0.0.0:6668
+ * @param sa The structure to convert
+ * @return The string; "<unknown>" if not a valid address
+ */
+ inline std::string satouser(const irc::sockets::sockaddrs& sa) { return sa.str(); }
+ }
+}
+
+#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:
+ const reference<ConfigTag> bind_tag;
+ std::string bind_addr;
+ int bind_port;
+ /** Human-readable bind description */
+ std::string bind_desc;
+ /** 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();
+};
+
+#endif
+
projects / user / henk / code / inspircd.git / blobdiff