* | Inspire 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.
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/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 <arpa/inet.h>
#include <sys/time.h>
#include <sys/resource.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
+#endif
-#else
+#include <cerrno>
+#include "socketengine.h"
-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
+ {
-#endif
+ typedef union {
+ struct sockaddr sa;
+ struct sockaddr_in in4;
+ struct sockaddr_in6 in6;
+ } sockaddrs;
+
+ /** 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(const unsigned char* address, const 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 std::string &address, const std::string &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 std::string &address, const std::string &cidr_mask, bool match_with_username);
+
+ /** 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(const char* addr, int socktype = SOCK_STREAM);
+
+ /** Return the size of the structure for syscall passing */
+ CoreExport int sa_size(const irc::sockets::sockaddrs& sa);
+
+ /** 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 char* 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
+ */
+ CoreExport std::string satouser(const irc::sockets::sockaddrs* sa);
+ }
+}
-const char* insp_ntoa(insp_inaddr n);
-int insp_aton(const char* a, insp_inaddr* n);
-int OpenTCPSocket();
-bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr);
-int BindPorts(bool bail);
+
+/** 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 ListenSocketBase : public EventHandler
+{
+ protected:
+ /** The creator/owner of this object
+ */
+ InspIRCd* ServerInstance;
+ /** Socket description (shown in stats p) */
+ std::string desc;
+
+ /** Raw address socket is bound to */
+ std::string bind_addr;
+ /** Port socket is bound to */
+ int bind_port;
+ /** Human-readable address/port socket is bound to */
+ std::string bind_desc;
+
+ /** The client address if the most recently connected client.
+ * Should only be used when accepting a new client.
+ */
+ static irc::sockets::sockaddrs client;
+ /** The server address used by the most recently connected client.
+ * This may differ from the bind address by having a nonzero address,
+ * if the port is wildcard bound, or being IPv4 on a 6to4 IPv6 port.
+ * The address family will always match that of "client"
+ */
+ static irc::sockets::sockaddrs server;
+
+ public:
+ /** Create a new listening socket
+ */
+ ListenSocketBase(InspIRCd* Instance, int port, const std::string &addr);
+ /** Handle an I/O event
+ */
+ void HandleEvent(EventType et, int errornum = 0);
+ /** Close the socket
+ */
+ ~ListenSocketBase();
+ /** 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() const { return bind_port; }
+
+ /** Get IP address socket is bound to
+ */
+ const std::string &GetIP() { return bind_addr; }
+
+ const std::string &GetBindDesc() { return bind_desc; }
+
+ /** Handles sockets internals crap of a connection, convenience wrapper really
+ */
+ void AcceptInternal();
+
+ /** Called when a new connection has successfully been accepted on this listener.
+ * @param fd The file descriptor of the new connection
+ */
+ virtual void OnAcceptReady(int fd) = 0;
+};
+
+class CoreExport ClientListenSocket : public ListenSocketBase
+{
+ virtual void OnAcceptReady(int fd);
+ public:
+ ClientListenSocket(InspIRCd* Instance, int port, const std::string &addr) : ListenSocketBase(Instance, port, addr) { }
+};
#endif
+
projects / user / henk / code / inspircd.git / blobdiff