4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief LLSocketAddress and LLAddressingPolicy public header
27 #ifndef HH_SENF_Socket_Protocols_Raw_LLAddressing_
28 #define HH_SENF_Socket_Protocols_Raw_LLAddressing_ 1
31 #include <sys/socket.h>
32 #include <netpacket/packet.h>
33 #include <senf/Socket/Protocols/BSDAddressingPolicy.hh>
34 #include <senf/Socket/Protocols/BSDSocketAddress.hh>
35 #include "MACAddress.hh"
37 //#include "LLAddressing.mpp"
38 //#include "LLAddressing.ih"
39 ///////////////////////////////hh.p////////////////////////////////////////
43 /// \addtogroup addr_group
46 /** \brief Link local address
48 LLSocketAddress wraps the standard sockaddr_ll data type. An LLSocketAddress provides quite
49 some information, only part of which is necessary for sending packets. The LLSocketAddress
50 class only allows changing those fields which need to be changed. The other fields are
51 read-only. They are filled by the operating system when receiving a packet
56 : public BSDSocketAddress
59 static short const addressFamily = AF_PACKET;
61 /** \brief Valid pkttype() values
63 These are the possible values returned by pkttype()
65 enum PktType { Undefined = 0
66 , Host = PACKET_HOST /**< Packet destined for this host */
67 , Broadcast = PACKET_BROADCAST /**< Packet sent to the broadcast address */
68 , Multicast = PACKET_MULTICAST /**< Packet sent to a (link local) multicast
70 , OtherHost = PACKET_OTHERHOST /**< Packet sent to another host (promisc) */
71 , Outgoing = PACKET_OUTGOING /**< Packet sent out from this host */
74 ///////////////////////////////////////////////////////////////////////////
75 ///\name Structors and default members
78 LLSocketAddress(); ///< Create empty address
79 explicit LLSocketAddress(unsigned proto, std::string const & iface="");
80 ///< Create address for \c bind()
81 /**< This constructs an LLSocketAddress valid for calling
82 PacketSocketHandle::bind() with.
83 \param[in] proto Protocol (Ethertype) to listen for
84 \param[in] iface Interface name to bind to */
85 explicit LLSocketAddress(std::string const &iface);
86 ///< Create address for \c bind()
87 /**< This constructs an LLSocketAddress valid for calling
88 \c PacketSocketHandle::bind() with.
89 \param[in] iface Interface name to bind to */
91 // This constructor is for sending packets
92 explicit LLSocketAddress(MACAddress const & addr, std::string const & iface="");
93 ///< Create address valid to send raw packets
94 /**< Addresses created with this constructor are valid for
95 use with \c PacketSocketHandle::sendto() on a \c
96 SOCK_DGRAM packet socket.
97 \param addr Address to send data to
98 \param iface Interface to send packet from */
100 LLSocketAddress(const LLSocketAddress& other);
101 LLSocketAddress& operator=(const LLSocketAddress& other);
104 ///////////////////////////////////////////////////////////////////////////
106 MACAddress address() const; ///< Return address
107 std::string interface() const; ///< Return interface name
108 unsigned protocol() const; ///< Return address protocol (ethertype)
110 unsigned arptype() const; ///< Return the hatype field (ARP hardware type)
111 PktType pkttype() const; ///< Return type of packet
113 // The mutating interface is purposely restricted to allow only
114 // changing those members, which are sensible to be changed.
116 void address(MACAddress const & addr); ///< Change address
117 void interface(std::string const & iface); ///< Change interface
118 void protocol(unsigned prot); ///< Change protocol
120 using BSDSocketAddress::sockaddr_p;
121 using BSDSocketAddress::socklen_p;
124 struct ::sockaddr_ll addr_;
129 /// \addtogroup policy_impl_group
132 /** \brief Addressing policy supporting link-local addressing
137 This addressing policy implements generic link local
138 addressing. The predominant type of link local addressing is
141 Since the link layer does not support the notion of
142 connections, link local addresses do not support the connect()
145 struct LLAddressingPolicy
146 : public BSDAddressingPolicy,
147 private BSDAddressingPolicyMixin<LLSocketAddress>
149 typedef LLSocketAddress Address;
151 using BSDAddressingPolicyMixin<LLSocketAddress>::local;
152 using BSDAddressingPolicyMixin<LLSocketAddress>::bind;
157 /** \brief Write link layer address
158 \related LLSocketAddress
160 std::ostream & operator<<(std::ostream & os, LLSocketAddress const & llAddr);
163 ///////////////////////////////hh.e////////////////////////////////////////
164 #include "LLAddressing.cci"
165 //#include "LLAddressing.ct"
166 //#include "LLAddressing.cti"
167 //#include "LLAddressing.mpp"
174 // c-file-style: "senf"
175 // indent-tabs-mode: nil
176 // ispell-local-dictionary: "american"
177 // compile-command: "scons -u test"
178 // comment-column: 40