1<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="1096px" preserveAspectRatio="none" style="width:1428px;height:1096px;" version="1.1" viewBox="0 0 1428 1096" width="1428px" zoomAndPan="magnify"><defs><filter height="300%" id="fr2kl6r8w9m30" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="366" x="530.25" y="26.708">Reactive Authentication in Central Role</text><ellipse cx="1004.1875" cy="40.9531" fill="#000000" filter="url(#fr2kl6r8w9m30)" 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2@startuml
3title Reactive Authentication in Central Role
4start
5: App on A connects to B;
6: App on A triggers GATT Client request;
7: GATT Client request sent;
8
9if (GATT Server returns an ATT_ERROR_INSUFFICIENT_X error?) then (yes)
10  if (ENABLE_GATT_CLIENT_PAIRING defined?) then (yes)
11    if (LTK available?) then (yes)
12      : SM_EVENT_REENCRYPTION_STARTED;
13      : start encryption;
14      if (re-encrypted) then (yes)
15        : SM_EVENT_REENCRYPTION_COMPLETE(ERROR_CODE_SUCCESS);
16        : GATT Client request re-sent;
17        #23DB2B : App receives GATT Response;
18        stop
19      else (no)
20        : SM_EVENT_REENCRYPTION_COMPLETE(error);
21        : delete bonding information;
22      endif
23    endif
24    : SM_EVENT_PAIRING_STARTED;
25    : start pairing;
26    if (pairing success?) then (yes)
27        : SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS);
28        : GATT Client request re-sent;
29        #23DB2B : App receives GATT Response;
30        stop
31    else (no)
32        : SM_EVENT_PAIRING_COMPLETE(error);
33        #FD5B41 : App receives a GATT Client error;
34        stop
35    endif
36  else (no)
37    #FD5B41: ATT_QUERY_COMPLETE(ATT_ERROR_INSUFFICIENT_X);
38    stop
39    note left
40      App can trigger pairing and
41      repeat the GATT Client request
42    end note
43  endif
44else (no)
45  #23DB2B : App receives GATT Response;
46  stop
47endif
48@enduml
49
50PlantUML version 1.2020.22beta2(Unknown compile time)
51(GPL source distribution)
52Java Runtime: Java(TM) SE Runtime Environment
53JVM: Java HotSpot(TM) 64-Bit Server VM
54Default Encoding: UTF-8
55Language: en
56Country: US
57--></g></svg>