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ipv6_address.h

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00001 /***************************************************************************
00002  *   Copyright (C) 2001 by Rick L. Vinyard, Jr.                            *
00003  *   rvinyard@cs.nmsu.edu                                                  *
00004  *                                                                         *
00005  *   This file is part of the conexus library.                             *
00006  *                                                                         *
00007  *   The conexus library is free software; you can redistribute it and/or  *
00008  *   modify it under the terms of the GNU General Public License           *
00009  *   version 3 as published by the Free Software Foundation.               *
00010  *                                                                         *
00011  *   The conexus library is distributed in the hope that it will be        *
00012  *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
00013  *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU   *
00014  *   General Public License for more details.                              *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU General Public License     *
00017  *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
00018  ***************************************************************************/
00019 #ifndef CONEXUS_IPV6ADDRESS_H
00020 #define CONEXUS_IPV6ADDRESS_H
00021 
00022 #include <string>
00023 
00024 #include <sys/socket.h>
00025 #include <netinet/in.h>
00026 #include <arpa/inet.h>
00027 
00028 #include <conexus/ipaddress.h>
00029 #include <conexus/except.h>
00030 
00031 namespace Conexus
00032   {
00033 
00034     namespace IPv4 {
00035       class Address;
00036     }
00037 
00044   namespace IPv6
00045     {
00046 
00048       typedef enum IPV4_EMBEDDED_TYPE { IPV4_COMPATIBLE, IPV4_MAPPED } IPV4_EMBEDDED_TYPE;
00049 
00051       struct in6_addr operator&( const struct in6_addr& first, const struct in6_addr& second );
00052 
00054       struct in6_addr operator|( const struct in6_addr& first, const struct in6_addr& second );
00055 
00057       struct in6_addr operator^( const struct in6_addr& first, const struct in6_addr& second );
00058 
00060       struct in6_addr operator~( const struct in6_addr& addr );
00061 
00063       struct in6_addr& operator&=( struct in6_addr& first, const struct in6_addr& second );
00064 
00066       struct in6_addr& operator|=( struct in6_addr& first, const struct in6_addr& second );
00067 
00069       struct in6_addr& operator^=( struct in6_addr& first, const struct in6_addr& second );
00070 
00072       bool operator==( const struct in6_addr&, const struct in6_addr& );
00073 
00075       bool operator<( const struct in6_addr&, const struct in6_addr& );
00076 
00078       bool operator!=( const struct in6_addr&, const struct in6_addr& );
00079 
00094       class Address: public IPAddress
00095       {
00096       public:
00097 
00099         static const struct in6_addr LOOPBACK;
00100 
00102         static const struct in6_addr IPV4_COMPATIBLE_PREFIX;
00103 
00105         static const struct in6_addr IPV4_MAPPED_PREFIX;
00106 
00108         typedef ConexusPointer<Address> pointer;
00109 
00117         Address(const struct in6_addr& address = in6addr_any, uint16_t port = 0);
00118 
00119         Address(uint32_t host, uint16_t port=0);
00120 
00121         Address(const std::string& host, uint16_t port=0);
00122 
00124         Address(const struct sockaddr_in6& addr);
00125 
00127         Address(const struct sockaddr_storage& addr);
00128 
00130         Address(const IPv4::Address& ipv4addr, IPV4_EMBEDDED_TYPE ipv4type = IPV4_MAPPED);
00131 
00133         static pointer create(const struct in6_addr& address = in6addr_any, uint16_t port = 0);
00134 
00135         static pointer create( uint32_t host, uint16_t port );
00136 
00137         static pointer create( const std::string& host, uint16_t port );
00138 
00140         static pointer create(const struct sockaddr_in6& addr);
00141 
00143         static pointer create(const struct sockaddr_storage& addr);
00144 
00146         static pointer create(const IPv4::Address& ipv4addr, IPV4_EMBEDDED_TYPE ipv4type = IPV4_MAPPED);
00147 
00149         virtual ~Address();
00150 
00152         struct in6_addr address() const;
00153 
00155         std::string address_string() const;
00156 
00158         struct in6_addr subnet_mask() const;
00159 
00161         std::string subnet_mask_string() const;
00162 
00164         unsigned prefix_length() const;
00165 
00167         std::string prefix_length_string() const;
00168 
00170         std::string address_subnet_mask_string() const;
00171 
00173         std::string cidr_address_string() const;
00174 
00176         struct in6_addr prefix() const;
00177 
00179         std::string prefix_string() const;
00180 
00182         struct in6_addr local_address() const;
00183 
00185         std::string local_address_string() const;
00186 
00188         uint16_t port() const;
00189 
00191         std::string port_string() const;
00192 
00194         void set_address(const struct in6_addr& address);
00195 
00209         void set_address(const std::string& address);
00210 
00212         virtual void set_address(const std::string& address, uint16_t port);
00213 
00215         void set_address(uint32_t address, IPV4_EMBEDDED_TYPE type=IPV4_MAPPED);
00216 
00218         void set_address_prefix_length(uint32_t address, unsigned prefix_length, IPV4_EMBEDDED_TYPE type=IPV4_MAPPED);
00219 
00221         void set_prefix_length(unsigned prefix_length);
00222 
00224         void set_prefix_length(const std::string& prefix_length);
00225 
00227         void set_port(uint16_t port);
00228 
00230         void set_port(const std::string& port);
00231 
00232         uint32_t flowinfo();
00233 
00234         void set_flowinfo( uint32_t f );
00235 
00236         uint32_t scope_id();
00237 
00238         void set_scope_id( uint32_t sid );
00239 
00241         std::string hostname() const;
00242 
00244         std::string servicename() const;
00245 
00247         bool is_reserved() const;
00248 
00250         bool is_nsap() const;
00251 
00253         bool is_ipx() const;
00254 
00256         bool is_aggregatable_global() const;
00257 
00259         bool is_link_local() const;
00260 
00262         bool is_site_local() const;
00263 
00265         bool is_multicast() const;
00266 
00273         bool is_multicast_interface_local() const;
00274 
00281         bool is_multicast_link_local() const;
00282 
00288         bool is_multicast_site_local() const;
00289 
00296         bool is_multicast_organization_local() const;
00297 
00299         bool is_multicast_global() const;
00300 
00302         bool is_any() const;
00303 
00305         bool is_loopback() const;
00306 
00308         bool is_ipv4() const;
00309 
00311         bool is_ipv4_compatible() const;
00312 
00314         bool is_ipv4_mapped() const;
00315 
00317         socklen_t sockaddr_size() const;
00318 
00320         struct sockaddr_in6& sockaddr_in();
00321 
00323         struct sockaddr_in6* sockaddr_in_ptr();
00324 
00325         operator struct sockaddr_in6*();
00326 
00328         Address& operator=(const Address& other);
00329 
00330         Address& operator=( const Conexus::Address& other );
00331 
00333         bool operator==(const Address& other);
00334 
00336         virtual bool is_ipv4() { return this->is_ipv4_compatible(); }
00337 
00339         virtual bool is_ipv6() { return true; }
00340 
00341         virtual sigc::signal<void> signal_changed( );
00342 
00343         virtual sigc::signal<void> signal_address_changed( );
00344 
00345         virtual sigc::signal<void> signal_port_changed( );
00346 
00347         virtual sigc::signal<void> signal_flowinfo_changed( );
00348 
00349         virtual sigc::signal<void> signal_scope_id_changed( );
00350 
00351         virtual sigc::signal<void> signal_prefix_changed( );
00352 
00353         protected:
00354           struct in6_addr m_address;
00355 
00356           uint16_t m_port;
00357 
00358           uint32_t m_flowinfo;
00359 
00360           uint32_t m_scope_id;
00361 
00363           unsigned m_prefix_length;
00364 
00365           sigc::signal<void> m_signal_changed;
00366 
00367           sigc::signal<void> m_signal_address_changed;
00368 
00369           sigc::signal<void> m_signal_port_changed;
00370 
00371           sigc::signal<void> m_signal_flowinfo_changed;
00372 
00373           sigc::signal<void> m_signal_scope_id_changed;
00374 
00375           sigc::signal<void> m_signal_prefix_changed;
00376       };
00377 
00383       std::string address_to_string(const struct in6_addr&);
00384 
00390       struct in6_addr string_to_address(const std::string&);
00391 
00396       void string_to_address_prefix(const std::string&, struct in6_addr& address, int& prefix);
00397 
00403       bool is_valid_hostname(const std::string&);
00404 
00414       std::string address_to_hostname( const struct in6_addr& address ) throw (address_exception);
00415 
00421       std::string service_to_servicename( uint16_t service ) throw (address_exception);
00422 
00429       struct in6_addr hostname_to_address( const std::string& hostname ) throw (address_exception);
00430 
00436       uint16_t servicename_to_service( const std::string& servicename ) throw (address_exception);
00437 
00442       bool validate_subnet_mask( const struct in6_addr& subnet_mask ) throw();
00443 
00448       struct in6_addr create_subnet_mask(unsigned prefix_length);
00449 
00450   }
00451 
00452 }
00453 
00454 #endif

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