| 1 | // [License]
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| 2 | // The Ariba-Underlay Copyright
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| 3 | //
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| 4 | // Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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| 5 | //
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| 6 | // Institute of Telematics
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| 7 | // UniversitÀt Karlsruhe (TH)
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| 8 | // Zirkel 2, 76128 Karlsruhe
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| 9 | // Germany
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| 10 | //
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| 11 | // Redistribution and use in source and binary forms, with or without
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| 12 | // modification, are permitted provided that the following conditions are
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| 13 | // met:
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| 14 | //
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| 15 | // 1. Redistributions of source code must retain the above copyright
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| 16 | // notice, this list of conditions and the following disclaimer.
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| 17 | // 2. Redistributions in binary form must reproduce the above copyright
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| 18 | // notice, this list of conditions and the following disclaimer in the
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| 19 | // documentation and/or other materials provided with the distribution.
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| 20 | //
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| 21 | // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
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| 22 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 24 | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
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| 25 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 26 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 27 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 28 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 29 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 30 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 31 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 32 | //
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| 33 | // The views and conclusions contained in the software and documentation
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| 34 | // are those of the authors and should not be interpreted as representing
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| 35 | // official policies, either expressed or implied, of the Institute of
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| 36 | // Telematics.
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| 37 | // [License]
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| 38 |
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| 39 | #ifndef ARIBAMODULE_H_
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| 40 | #define ARIBAMODULE_H_
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| 41 |
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| 42 | #include <string>
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| 43 | #include <vector>
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| 44 | #include <ctime>
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| 45 | #include <cstdlib>
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| 46 | #include <algorithm>
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| 47 |
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| 48 | using std::vector;
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| 49 | using std::string;
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| 50 |
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| 51 | // forward declaration
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| 52 | namespace ariba {
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| 53 | class AribaModule;
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| 54 | class SideportListener;
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| 55 | }
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| 56 |
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| 57 | // local includes
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| 58 | #include "Name.h"
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| 59 | #include "Module.h"
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| 60 |
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| 61 | namespace ariba {
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| 62 |
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| 63 | // forward declaration
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| 64 | namespace communication {
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| 65 | class EndpointDescriptor;
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| 66 | class BaseCommunication;
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| 67 | }
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| 68 |
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| 69 | /**
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| 70 | * This class implements a container class for ariba base services. Each node
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| 71 | * is a running using this base-module. It also manages Bootstrap information
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| 72 | * in a abstract simple way.
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| 73 | *
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| 74 | * +---+ +---+
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| 75 | * |N1 | |N2 |
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| 76 | * +--| |---| |--+
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| 77 | * | +---+ +---+ |
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| 78 | * | |
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| 79 | * | AribaModule |
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| 80 | * +-----------------+
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| 81 | *
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| 82 | * N1, N2 are nodes.
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| 83 | *
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| 84 | * @author Sebastian Mies <mies@tm.uka.de>
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| 85 | * @author Christoph Mayer <mayer@tm.uka.de>
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| 86 | */
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| 87 | class AribaModule: public Module {
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| 88 | friend class Node;
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| 89 | use_logging_h(AribaModule);
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| 90 | public:
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| 91 | /**
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| 92 | * Constructor of the ariba underlay module
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| 93 | */
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| 94 | AribaModule();
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| 95 |
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| 96 | /**
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| 97 | * Destructor of the ariba underlay module
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| 98 | */
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| 99 | virtual ~AribaModule();
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| 100 |
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| 101 | /**
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| 102 | * Returns all known bootstrap endpoints to this ariba module in
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| 103 | * a human-readable string. This information can be used by other
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| 104 | * nodes for bootstraping. It may also be used to publish this info
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| 105 | * to other nodes via the web, for example.
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| 106 | *
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| 107 | * @param The name of the spovnet
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| 108 | * @return A human-readable string containing all known bootstrap
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| 109 | * information known to this module.
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| 110 | */
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| 111 | string getBootstrapHints(const Name& spoVNetName = Name::UNSPECIFIED) const;
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| 112 |
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| 113 | /**
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| 114 | * Adds bootstrap hints to the local database. The format of the string
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| 115 | * must is the same as returned by <code>getBootstrapInfo</code>.
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| 116 | *
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| 117 | * @param bootinfo A string containing bootstrap information.
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| 118 | */
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| 119 | void addBootstrapHints(string bootinfo);
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| 120 |
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| 121 | /**
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| 122 | * Register a sideport for sniffing on communication events
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| 123 | * and get advanced information. The sniffer is attached to
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| 124 | * every node that is created on the module. Only one such
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| 125 | * sniffer can be active system-wide, a new call to this
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| 126 | * register function will only attach the sniffer to nodes
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| 127 | * created after the registration call.
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| 128 | *
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| 129 | * @param sideport The SideportListener to integrate
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| 130 | */
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| 131 | void registerSideportListener(SideportListener* sideport);
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| 132 |
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| 133 | // --- module implementation ---
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| 134 |
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| 135 | /**
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| 136 | * Module Property information:
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| 137 | *
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| 138 | * ip.addr = preferred ip address (otherwise bind to all)
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| 139 | * tcp.port = preferred tcp port (or use default value)
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| 140 | * udp.port = preferred udp port (or use default value)
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| 141 | * bootstrap.hints = used bootstrap hints
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| 142 | * bootstrap.file = used file for bootstrap information
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| 143 | */
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| 144 | void initialize(); ///< @see Module.h
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| 145 | void start(); ///< @see Module.h
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| 146 | void stop(); ///< @see Module.h
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| 147 | string getName() const; ///< @see Module.h
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| 148 | void setProperty(string key, string value); ///< @see Module.h
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| 149 | const string getProperty(string key) const; ///< @see Module.h
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| 150 | const vector<string> getProperties() const; ///< @see Module.h
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| 151 |
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| 152 | /**
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| 153 | * Get the local endpoint information
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| 154 | */
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| 155 | const string getLocalEndpoints();
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| 156 |
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| 157 | private:
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| 158 |
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| 159 | /**
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| 160 | * Available bootstrap mechanisms
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| 161 | */
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| 162 | enum BootstrapMechanism {
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| 163 | BootstrapMechanismInvalid = 0,
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| 164 | BootstrapMechanismStatic = 1,
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| 165 | BootstrapMechanismBroadcast = 2,
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| 166 | BootstrapMechanismMulticastDNS = 3,
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| 167 | BootstrapMechanismSDP = 4,
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| 168 | };
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| 169 | static const string BootstrapMechanismNames[5];
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| 170 |
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| 171 | /**
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| 172 | * bootstrap node information
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| 173 | */
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| 174 | class BootstrapNode {
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| 175 | public:
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| 176 | inline BootstrapNode() :
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| 177 | timestamp(0), desc(NULL), mechanism(BootstrapMechanismInvalid), info("") {
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| 178 |
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| 179 | }
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| 180 | inline BootstrapNode(const BootstrapNode& copy) :
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| 181 | timestamp(copy.timestamp), desc(copy.desc), mechanism(copy.mechanism), info(copy.info) {
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| 182 | }
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| 183 | inline BootstrapNode(
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| 184 | uint32_t timestamp,
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| 185 | communication::EndpointDescriptor* desc,
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| 186 | BootstrapMechanism mechanism, string info) :
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| 187 | timestamp(timestamp), desc(desc), mechanism(mechanism), info(info) {
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| 188 | }
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| 189 | uint32_t timestamp;
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| 190 | communication::EndpointDescriptor* desc;
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| 191 | BootstrapMechanism mechanism;
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| 192 | string info;
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| 193 | };
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| 194 |
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| 195 | /*
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| 196 | * bootstrap info, all bootstrap nodes
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| 197 | * for a specific spovnet
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| 198 | */
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| 199 | class BootstrapInfo {
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| 200 | public:
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| 201 | BootstrapInfo() :
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| 202 | spovnetName(), nodes() {
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| 203 | }
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| 204 |
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| 205 | BootstrapInfo(const BootstrapInfo& copy) :
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| 206 | spovnetName(copy.spovnetName), nodes(copy.nodes) {
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| 207 | }
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| 208 |
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| 209 | Name spovnetName;
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| 210 | vector<BootstrapNode> nodes;
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| 211 | };
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| 212 |
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| 213 | vector<BootstrapInfo> bootstrapNodes; //< all available bootstrap information
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| 214 |
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| 215 | protected:
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| 216 | // members
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| 217 | string endpoints; //< local endpoints the ariba module is bound to
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| 218 | bool started; //< flag, if module has been started
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| 219 |
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| 220 | /**
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| 221 | * bootstrap node management
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| 222 | * add a bootstrap node
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| 223 | */
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| 224 | void addBootstrapNode(
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| 225 | const Name& spovnet,
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| 226 | communication::EndpointDescriptor* desc,
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| 227 | const string& info,
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| 228 | const BootstrapMechanism& mechanism
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| 229 | );
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| 230 |
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| 231 | /**
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| 232 | * bootstrap node management
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| 233 | * add a bootstrap node
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| 234 | */
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| 235 | void addBootstrapNode(
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| 236 | const Name& spovnet,
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| 237 | const BootstrapNode& node
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| 238 | );
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| 239 |
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| 240 | /**
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| 241 | * bootstrap node management
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| 242 | * get all available bootstrap mechanisms
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| 243 | * where bootstrap nodes are available for
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| 244 | */
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| 245 | vector<AribaModule::BootstrapMechanism> getBootstrapMechanisms(
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| 246 | const Name& spovnet
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| 247 | ) const;
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| 248 |
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| 249 | /**
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| 250 | * get a endpoint descriptor for a spovnet
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| 251 | * using a specific bootstrap mechanisms.
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| 252 | * will currently only work with static
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| 253 | */
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| 254 | const communication::EndpointDescriptor* getBootstrapNode(
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| 255 | const Name& spovnet,
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| 256 | const BootstrapMechanism mechanism
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| 257 | ) const;
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| 258 |
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| 259 | /**
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| 260 | * get the info field associated for a given
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| 261 | * spovnet through a given mechanism
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| 262 | */
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| 263 | string getBootstrapInfo(
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| 264 | const Name& spovnet,
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| 265 | const BootstrapMechanism mechanism
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| 266 | ) const;
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| 267 |
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| 268 | communication::BaseCommunication* base_comm; //< the base communication
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| 269 | SideportListener* sideport_sniffer; //< the sideport listener
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| 270 | };
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| 271 |
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| 272 | } // namespace ariba
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| 273 |
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| 274 | #endif /* ENVIRONMENT_H_ */
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