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Annotation of 43BSDReno/contrib/isode-beta/doc/ftam/protocol.tex, revision 1.1

1.1     ! root        1: % run this through SLiTeX with the appropriate wrapper
        !             2: 
        !             3: \begin{bwslide}
        !             4: \part  {THE FILE PROTOCOL}
        !             5: 
        !             6: \begin{nrtc}\bf
        !             7: \item  ELEMENTS OF PROCEDURE
        !             8: 
        !             9: \item  DEFINITION AND ENCODING OF DATA UNITS
        !            10: 
        !            11: \item  FTAM USE OF LOWER-LAYER SERVICES
        !            12: 
        !            13: \item  EXAMPLES
        !            14: \end{nrtc}
        !            15: \end{bwslide}
        !            16: 
        !            17: 
        !            18: \begin{bwslide}
        !            19: \part* {ELEMENTS OF PROCEDURE}%%%\bf
        !            20: 
        !            21: \begin{nrtc}
        !            22: \item  THE FILE SERVICE PROVIDER EXECUTES THE FILE PROTOCOL
        !            23: 
        !            24: \item  THE PROVIDER IS ACTUALLY TWO PEER ENTITIES
        !            25: 
        !            26: \item  ASSOCIATION CONTROL IS USED TO MANAGE THE END-TO-END ASSOCIATION
        !            27:        BETWEEN FILE USERS
        !            28: 
        !            29: \item  PRESENTATION SERVICES ARE USED TO EXCHANGE DATA IN A
        !            30:        MACHINE-INDEPENDENT FASHION
        !            31: 
        !            32: \item  COMMITMENT, CONCURRENCY AND RECOVERY (CCR) SERVICES CAN ALSO BE USED
        !            33:        FOR THE FILE TRANSFER CLASS
        !            34: 
        !            35: \item  ALL DATA UNITS (FPDUs and FADUs) ARE EXPRESSED IN TERMS OF
        !            36:        ABSTRACT SYNTAX NOTATION ONE (ASN.1)
        !            37: \end{nrtc}
        !            38: \end{bwslide}
        !            39: 
        !            40: 
        !            41: \begin{bwslide}
        !            42: \ctitle        {FILE SERVICE REQUESTS}
        !            43: 
        !            44: \begin{nrtc}
        !            45: \item  THE VALIDITY OF THE REQUEST IS VERIFIED
        !            46:     \begin{nrtc}
        !            47:     \item      i.e., CHECK NEGOTIATED FUNCTIONAL UNITS, INNER-MOST REGIME,
        !            48:                INTERNAL STATE, and so on
        !            49:     \end{nrtc}
        !            50: 
        !            51: \item  THE PARAMETERS OF THE REQUEST ARE ENCODED IN A
        !            52:        FILE PROTOCOL DATA UNIT (FPDU)
        !            53: 
        !            54: \item  THE FPDU IS GIVEN TO THE PRESENTATION PROVIDER FOR DELIVERY
        !            55:        TO THE REMOTE SYSTEM
        !            56: 
        !            57: \item  THE PROVIDER UPDATES ITS INTERNAL STATE
        !            58: \end{nrtc}
        !            59: \end{bwslide}
        !            60: 
        !            61: 
        !            62: \begin{bwslide}
        !            63: \ctitle        {ON RECEIPT OF A FILE PROTOCOL DATA UNIT}
        !            64: 
        !            65: \begin{nrtc}
        !            66: \item  THE VALIDITY OF THE FPDU IS VERIFIED
        !            67:     \begin{nrtc}
        !            68:     \item      i.e., CHECK NEGOTIATED FUNCTIONAL UNITS, INNER-MOST REGIME,
        !            69:                INTERNAL STATE, and so on
        !            70:     \end{nrtc}
        !            71: 
        !            72: \item  THE PARAMETERS OF THE FPDU ARE ENCODED IN A SERVICE .INDICATION
        !            73:        OR .CONFIRMATION EVENT
        !            74: 
        !            75: \item  THE EVENT IS GIVEN TO THE FILE SERVICE USER
        !            76: 
        !            77: \item  THE PROVIDER UPDATES ITS INTERNAL STATE
        !            78: 
        !            79: \item  FADUs (DETERMINED BY PRESENTATION CONTEXT) ARE GIVEN DIRECTLY TO THE
        !            80:        USER
        !            81: \end{nrtc}
        !            82: \end{bwslide}
        !            83: 
        !            84: 
        !            85: \begin{bwslide}
        !            86: \part* {DEFINITION AND ENCODING OF DATA UNITS}\bf
        !            87: 
        !            88: \begin{nrtc}
        !            89: \item  TWO KINDS OF DATA UNITS ARE EXCHANGED IN THE FILE SERVICE
        !            90: 
        !            91: \item  FILE PROTOCOL DATA UNITS (FPDUs) ARE EXCHANGED WITHIN THE
        !            92:        FILE SERVICE PROVIDER
        !            93: 
        !            94: \item  FILE ACCESS DATA UNITS (FADUs) ARE EXCHANGED BY THE USERS OF THE
        !            95:        FILE SERVICE
        !            96: \end{nrtc}
        !            97: \end{bwslide}
        !            98: 
        !            99: 
        !           100: \begin{bwslide}
        !           101: \ctitle        {ABSTRACT SYNTAX NOTATION ONE (ASN.1)}
        !           102: 
        !           103: \begin{nrtc}
        !           104: \item  ABSTRACT SYNTAX NOTATION ONE (ASN.1) IS USED TO DESCRIBE THE STRUCTURE
        !           105:        AND ENCODING OF DATA UNITS
        !           106: 
        !           107: \item  ASN.1 IS A DATA STRUCTURE DESCRIPTION LANGUAGE AND AN ENCODING
        !           108:        SPECIFICATION
        !           109:     \begin{nrtc}
        !           110:     \item      IT IS USED TO DESCRIBE DATA STRUCTURES INDEPENDENT OF A
        !           111:                GIVEN MACHINE'S INTERNAL REPRESENTATION
        !           112: 
        !           113:     \item      IT ALSO DEFINES HOW TO UNIVERSALLY ENCODE THOSE STRUCTURES
        !           114:                AS THEY ARE TRANSMITTED FROM ONE MACHINE TO ANOTHER
        !           115:     \end{nrtc}
        !           116: \end{nrtc}
        !           117: \end{bwslide}
        !           118: 
        !           119: 
        !           120: \begin{bwslide}
        !           121: \part* {FTAM USE OF LOWER-LAYER SERVICES}\bf
        !           122: 
        !           123: \begin{nrtc}
        !           124: \item  ASSOCIATION CONTROL
        !           125: 
        !           126: \item  PRESENTATION SERVICES
        !           127: 
        !           128: \item  SESSION SERVICES
        !           129: 
        !           130: \item  COMMITMENT, CONCURRENCY AND RECOVERY
        !           131: \end{nrtc}
        !           132: \end{bwslide}
        !           133: 
        !           134: 
        !           135: \begin{bwslide}
        !           136: \ctitle        {FTAM USE OF LOWER-LAYER SERVICES (cont.)}
        !           137: 
        !           138: \vskip.5in
        !           139: \diagram[p]{figure7}
        !           140: \end{bwslide}
        !           141: 
        !           142: 
        !           143: \begin{bwslide}
        !           144: \ctitle        {ASSOCIATION CONTROL}
        !           145: 
        !           146: \begin{nrtc}
        !           147: \item  ASSOCIATION CONTROL IS USED BY
        !           148:     \begin{nrtc}
        !           149:     \item      FTAM REGIME ESTABLISHMENT SERVICE: A-ASSOCIATE
        !           150: 
        !           151:     \item      FTAM REGIME TERMINATION SERVICE: A-RELEASE
        !           152: 
        !           153:     \item      FTAM REGIME ABORT SERVICE: A-(U-)ABORT, A-P-ABORT
        !           154:     \end{nrtc}
        !           155: 
        !           156: \item  NOTE THAT ASSOCIATION CONTROL MAPS DIRECTLY ONTO PRESENTATION
        !           157:        SERVICES
        !           158:     \begin{nrtc}
        !           159:     \item      A PART OF THE APPLICATION LAYER
        !           160:                (SO-CALLED COMMON APPLICATION SERVICE ENTITY)
        !           161:     \end{nrtc}
        !           162: \end{nrtc}
        !           163: \end{bwslide}
        !           164: 
        !           165: 
        !           166: \begin{bwslide}
        !           167: \ctitle        {ADDRESSES AND APPLICATION ENTITY TITLES}
        !           168: 
        !           169: \begin{nrtc}
        !           170: \item  INITIATOR PROVIDES
        !           171:     \begin{nrtc}
        !           172:     \item      DESCRIPTION OF FILE SERVICE DESIRED,
        !           173:                e.g., ``gremlin-filestore''
        !           174:     \end{nrtc}
        !           175:         
        !           176: \item  AND (SOMEHOW) PERFORMS TWO MAPPINGS
        !           177:     \begin{nrtc}
        !           178:     \item      DESCRIPTOR TO APPLICATION ENTITY TITLE PROVIDING SERVICE:
        !           179:                CURRENTLY AN OBJECT IDENTIFIER
        !           180: 
        !           181:     \item      AET TO PRESENTATION ADDRESS:
        !           182:                CURRENTLY P-SELECTOR, S-SELECTOR, T-SELECTOR, AND A LIST OF
        !           183:                NETWORK ADDRESSES
        !           184:     \end{nrtc}
        !           185: 
        !           186: \item  IN THE FUTURE, DIRECTORY SERVICES ARE USED
        !           187: \end{nrtc}
        !           188: \end{bwslide}
        !           189: 
        !           190: 
        !           191: \begin{bwslide}
        !           192: \ctitle        {PRESENTATION SERVICES}
        !           193: 
        !           194: \begin{nrtc}
        !           195: \item  PRESENTATION SERVICES ARE USED BY THE REMAINING FTAM REGIMES: P-DATA
        !           196: 
        !           197: \item  FURTHER
        !           198:     \begin{nrtc}
        !           199:     \item      THE FILE OPEN SERVICE MAY REQUIRE: P-ALTER-CONTEXT
        !           200: 
        !           201:     \item      THE CANCEL DATA SERVICE REQUIRES: P-RESYNCHRONIZE
        !           202: 
        !           203:     \item      THE CHECKPOINT SERVICE REQUIRES: P-SYNC-MINOR
        !           204: 
        !           205:     \item      THE RESTART SERVICE REQUIRES: P-ALTER-CONTEXT
        !           206:     \end{nrtc}
        !           207: 
        !           208: \item  IN ADDITION, ASSOCIATION CONTROL REQUIRES:
        !           209:        P-CONNECT, P-RELEASE, P-U-ABORT, P-P-ABORT
        !           210: \end{nrtc}
        !           211: \end{bwslide}
        !           212: 
        !           213: 
        !           214: \begin{bwslide}
        !           215: \ctitle        {PRESENTATION CONTEXTS}
        !           216: 
        !           217: \begin{nrtc}
        !           218: \item  ASSOCIATION CONTROL PCI (PRESENTATION CONTEXT INFORMATION)
        !           219: 
        !           220: \item  FTAM PCI
        !           221: 
        !           222: \item  IF THE PRESENTATION CONTEXT MANAGEMENT SERVICE IS UNAVAILABLE, THEN
        !           223:     \begin{nrtc}
        !           224:     \item      FTAM REQUESTS A CONTEXT FOR EACH DOCUMENT TYPE THAT MIGHT BE
        !           225:                EXCHANGED
        !           226:     \end{nrtc}
        !           227: 
        !           228: \item  FTAM PROVIDES BOTH THE ABSTRACT SYNTAX AND TRANSFER SYNTAX
        !           229:        OF EACH CONTEXT
        !           230: \end{nrtc}
        !           231: \end{bwslide}
        !           232: 
        !           233: 
        !           234: \begin{bwslide}
        !           235: \ctitle        {COMMITMENT, CONCURRENCY AND RECOVERY}
        !           236: 
        !           237: \begin{nrtc}
        !           238: \item  IF THE FILE TRANSFER CLASS IS SELECTED, AS A USER OPTION,
        !           239:        THE ISO COMMITMENT, CONCURENCY, AND RECOVERY PROTOCOL CAN BE USED
        !           240: 
        !           241: \item  NEEDED FOR ATOMIC TRANSFER OF FILES (BUT NOT REALLY NEEDED FOR
        !           242:        RESUMPTION OF FILE TRANSFER)
        !           243: 
        !           244: \item  PERSONAL OPINION
        !           245:     \begin{nrtc}
        !           246:     \item      A TREMENDOUS ``OVERKILL'' FOR ATOMIC FILE TRANSFER
        !           247: 
        !           248:     \item      NOT REALLY WELL-DEFINED AT THIS POINT
        !           249:     \end{nrtc}
        !           250: \end{nrtc}
        !           251: \end{bwslide}
        !           252: 
        !           253: 
        !           254: \begin{bwslide}
        !           255: \ctitle        {SESSION SERVICES}
        !           256: 
        !           257: \begin{nrtc}
        !           258: \item  THE FILE PROVIDER DOES NOT USE SESSION SERVICES DIRECTLY
        !           259: 
        !           260: \item  HOWEVER MOST PRESENTATION SERVICES MAP DIRECTLY ONTO SESSION SERVICES
        !           261: 
        !           262: \item  HENCE: AT LEAST S-CONNECT, S-DATA, S-RELEASE, S-U-ABORT, AND S-P-ABORT
        !           263:        ARE REQUIRED
        !           264: 
        !           265: \item  AND OPTIONALLY: S-TYPED-DATA, S-RESYNCHRONIZE and S-SYNC-MINOR ARE
        !           266:        ALSO REQUIRED
        !           267: \end{nrtc}
        !           268: \end{bwslide}
        !           269: 
        !           270: 
        !           271: \begin{bwslide}
        !           272: \part* {EXAMPLES}\small
        !           273: 
        !           274: \begin{verbatim}
        !           275: wrote F-INITIALIZE-request, context 1
        !           276: {
        !           277:    {
        !           278:       service-class transfer-and-management-class,
        !           279:       functional-units { read, write, limited-file-management,
        !           280:                          enhanced-file-management },
        !           281:       attribute-groups { storage, security },
        !           282:       contents-type-list {
        !           283:          { document-types { 1.0.8571.6.3, 1.17.3.6.1, 1.17.3.6.8 } }
        !           284:       },
        !           285:       initiator-identity "ANON",
        !           286:       filestore-password { "mrose" }
        !           287:    }
        !           288: }
        !           289: \end{verbatim}
        !           290: \end{bwslide}
        !           291: 
        !           292: 
        !           293: \begin{bwslide}\small
        !           294: \begin{verbatim}
        !           295: wrote AARQapdu, context 9
        !           296: {
        !           297:    protocolVersion { version1 },
        !           298:    calledAEtitle 1.17.4.3.1,
        !           299:    applicationContextName 1.0.8571.2.1,
        !           300:    userInformation {
        !           301:       data-value-identifier { indirect-reference 1 },
        !           302:       encodings {
        !           303:          single-ASN1-type {
        !           304:             [3] '03'H,
        !           305:             [4] '0136'H,
        !           306:             [5] '06c0'H,
        !           307:             [7] {
        !           308:                [0] {
        !           309:                   [APPLICATION 7] '28c27b0603'H,
        !           310:                   [APPLICATION 7] '39030601'H,
        !           311:                   [APPLICATION 7] '39030608'H
        !           312:                }
        !           313:             },
        !           314:             [APPLICATION 4] "ANON",
        !           315:             [APPLICATION 6] { "mrose" }
        !           316:          }
        !           317:       }
        !           318:    }
        !           319: }
        !           320: \end{verbatim}
        !           321: \end{bwslide}
        !           322: 
        !           323: 
        !           324: \begin{bwslide}\small
        !           325: \begin{verbatim}
        !           326: wrote CPppdu
        !           327: {
        !           328:    { nonx410mode },
        !           329:    [2] {
        !           330:       [2] TRUE,
        !           331:       [3] {
        !           332:          { 1, 1.0.8571.1.1, { 1.0.8825 } },
        !           333:          { 3, 1.0.8571.2.4, { 1.0.8571.3.4 } },
        !           334:          { 5, 1.17.3.2.0, { 1.17.3.3.0 } },
        !           335:          { 7, 1.17.3.2.2, { 1.17.3.3.0 } },
        !           336:          { 9, 1.0.8650.2.1, { 1.0.8825 } }
        !           337:       },
        !           338:       [4] { 1.0.8571.1.1, 1.0.8825 },
        !           339:       [5] { version-1 },
        !           340:       {
        !           341:          {
        !           342:             {
        !           343:                data-value-identifier { indirect-reference 9 },
        !           344:                encodings {
        !           345:                   single-ASN1-type {
        !           346:                      [0] '0780'H,
        !           347:                      [1] { 1.17.4.3.1 },
        !           348:                      [3] { 1.0.8571.2.1 },
        !           349: \end{verbatim}
        !           350: \end{bwslide}
        !           351: 
        !           352: 
        !           353: \begin{bwslide}\small
        !           354: \begin{verbatim}
        !           355:                      [4] {
        !           356:                         [UNIVERSAL 8] {
        !           357:                            1,
        !           358:                            [0] {
        !           359:                               [0] {
        !           360:                                  [3] '03'H,
        !           361:                                  [4] '0136'H,
        !           362:                                  [5] '06c0'H,
        !           363:                                  [7] {
        !           364:                                     [0] {
        !           365:                                        [APPLICATION 7] '28c27b0603'H,
        !           366:                                        [APPLICATION 7] '39030601'H,
        !           367:                                        [APPLICATION 7] '39030608'H
        !           368:                                     }
        !           369:                                  },
        !           370:                                  [APPLICATION 4] "ANON",
        !           371:                                  [APPLICATION 6] { "mrose" }
        !           372:                               }
        !           373:                            }
        !           374:                         }
        !           375:                      }
        !           376:                   }
        !           377:                }
        !           378:             }
        !           379:          }
        !           380:       }
        !           381:    }
        !           382: }
        !           383: \end{verbatim}
        !           384: \end{bwslide}
        !           385: 
        !           386: 
        !           387: \begin{bwslide}\small
        !           388: \begin{verbatim}
        !           389: ---> (: dump of SPDU 0xb8404, errno=0xffffffff mask=0x409f
        !           390: ---> LI/ 281
        !           391: ---> CODE/ CONNECT
        !           392: ---> REFERENCE/ <USER "gremlin", COMMON  "870601045854Z", ADDITIONAL 0>
        !           393: ---> OPTIONS/ 0x0<>
        !           394: ---> TSDU/ INITIATOR: 65528, RESPONDER: 65528
        !           395: ---> VERSION/ 0x1
        !           396: ---> ISN/ 1
        !           397: ---> REQUIREMENTS/ 0x22<DUPLEX,RESYNC>
        !           398: ---> USER DATA/ 225 bytes
        !           399: ---> )
        !           400: \end{verbatim}
        !           401: \end{bwslide}
        !           402: 
        !           403: 
        !           404: \begin{bwslide}
        !           405: \part* {SUMMARY}\bf
        !           406: 
        !           407: \begin{nrtc}
        !           408: \item  THE FILE SERVICE PROVIDER IS A ``STATE MACHINE'' COMPOSED OF TWO
        !           409:        PEERS EXECUTING THE FILE PROTOCOL
        !           410: 
        !           411: \item  IN ADDITION TO RESOURCES ON THEIR HOST SYSTEMS,
        !           412:        THEY USE THE ASSOCIATION CONTROL AND PRESENTATION SERVICES
        !           413: 
        !           414: \item  ASN.1 IS USED TO DEFINE AND ENCODE THE DATA UNITS WHICH ARE EXCHANGED
        !           415: \end{nrtc}
        !           416: \end{bwslide}

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