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<?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="2560px" preserveAspectRatio="none" style="width:1579px;height:2560px;" version="1.1" viewBox="0 0 1579 2560" width="1579px" zoomAndPan="magnify"><defs><filter height="300%" id="f1aicqcofdeklm" 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="316" x="630.5" y="27.4023">requestLease4 algorithm (Kea 1.8.0)</text><ellipse cx="631.3125" cy="41.1992" fill="#000000" filter="url(#f1aicqcofdeklm)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="148" x="557.3125" y="71.1992"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="128" x="567.3125" y="92.8008">get lease for the client</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="584.8125,125.332,677.8125,125.332,689.8125,137.332,677.8125,149.332,584.8125,149.332,572.8125,137.332,584.8125,125.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="93" x="584.8125" y="141.4893">reserved address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="554.8125" y="135.0117">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="689.8125" y="135.0117">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="229,159.332,329,159.332,341,171.332,329,183.332,229,183.332,217,171.332,229,159.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="100" x="229" y="175.4893">requested address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="203" y="169.0117">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="341" y="169.0117">yes</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="250" x="11" y="193.332"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="230" x="21" y="214.9336">requested address = reserved address</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="368.5" y="241.8096"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="378.5" y="263.4111">return no lease</text><ellipse cx="422" cy="321.9424" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="422" cy="321.9424" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="293,193.332,551,193.332,563,205.332,551,217.332,293,217.332,281,205.332,293,193.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="426" y="227.9668">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="258" x="293" y="209.4893">requested address is reserved for another client</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="563" y="203.0117">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="279,363.4199,291,375.4199,279,387.4199,267,375.4199,279,363.4199" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="225.5" y="519.375"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="235.5" y="540.9766">return no lease</text><ellipse cx="279" cy="599.5078" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="279" cy="599.5078" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="186.5,470.8975,371.5,470.8975,383.5,482.8975,371.5,494.8975,186.5,494.8975,174.5,482.8975,186.5,470.8975" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="283" y="505.5322">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="185" x="186.5" y="487.0547">active and owned by another client</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="383.5" y="480.5771">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="204.5,422.4199,353.5,422.4199,365.5,434.4199,353.5,446.4199,204.5,446.4199,192.5,434.4199,204.5,422.4199" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="283" y="457.0547">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="149" x="204.5" y="438.5771">lease for requested address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="365.5" y="432.0996">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="279,665.4629,291,677.4629,279,689.4629,267,677.4629,279,665.4629" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="225.5" y="869.8955"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="235.5" y="891.4971">return no lease</text><ellipse cx="279" cy="950.0283" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="279" cy="950.0283" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="263.5,821.418,294.5,821.418,306.5,833.418,294.5,845.418,263.5,845.418,251.5,833.418,263.5,821.418" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="283" y="856.0527">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="31" x="263.5" y="837.5752">active</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="306.5" y="831.0977">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="204.5,772.9404,353.5,772.9404,365.5,784.9404,353.5,796.9404,204.5,796.9404,192.5,784.9404,204.5,772.9404" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="283" y="807.5752">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="149" x="204.5" y="789.0977">lease for requested address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="365.5" y="782.6201">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="279,1015.9834,291,1027.9834,279,1039.9834,267,1027.9834,279,1015.9834" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="225.5" y="1123.4609"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="235.5" y="1145.0625">return no lease</text><ellipse cx="279" cy="1197.6045" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="279" cy="1197.6045" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="187.5,1074.9834,370.5,1074.9834,382.5,1086.9834,370.5,1098.9834,187.5,1098.9834,175.5,1086.9834,187.5,1074.9834" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="283" y="1109.6182">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="183" x="187.5" y="1091.1406">requested address in allowed pool</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="382.5" y="1084.6631">yes</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="170.5,724.4629,387.5,724.4629,399.5,736.4629,387.5,748.4629,170.5,748.4629,158.5,736.4629,170.5,724.4629" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="283" y="759.0977">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="217" x="170.5" y="740.6201">requested address == reserved address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="399.5" y="734.1426">yes</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="279,1259.082,291,1271.082,279,1283.082,267,1271.082,279,1259.082" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="933.625,159.332,1033.625,159.332,1045.625,171.332,1033.625,183.332,933.625,183.332,921.625,171.332,933.625,159.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="100" x="933.625" y="175.4893">requested address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="903.625" y="169.0117">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1045.625" y="169.0117">no</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="702.5" y="241.8096"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="712.5" y="263.4111">return no lease</text><ellipse cx="756" cy="321.9424" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="756" cy="321.9424" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="627,193.332,885,193.332,897,205.332,885,217.332,627,217.332,615,205.332,627,193.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="760" y="227.9668">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="258" x="627" y="209.4893">requested address is reserved for another client</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="897" y="203.0117">no</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="702.5" y="489.375"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="712.5" y="510.9766">return no lease</text><ellipse cx="756" cy="569.5078" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="756" cy="569.5078" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="663.5,440.8975,848.5,440.8975,860.5,452.8975,848.5,464.8975,663.5,464.8975,651.5,452.8975,663.5,440.8975" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="760" y="475.5322">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="185" x="663.5" y="457.0547">active and owned by another client</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="860.5" y="450.5771">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="681.5,392.4199,830.5,392.4199,842.5,404.4199,830.5,416.4199,681.5,416.4199,669.5,404.4199,681.5,392.4199" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="760" y="427.0547">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="149" x="681.5" y="408.5771">lease for requested address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="842.5" y="402.0996">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="756,635.4629,768,647.4629,756,659.4629,744,647.4629,756,635.4629" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="702.5" y="742.9404"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="712.5" y="764.542">return no lease</text><ellipse cx="756" cy="823.0732" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="756" cy="823.0732" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="664.5,694.4629,847.5,694.4629,859.5,706.4629,847.5,718.4629,664.5,718.4629,652.5,706.4629,664.5,694.4629" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="760" y="729.0977">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="183" x="664.5" y="710.6201">requested address in allowed pool</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="859.5" y="704.1426">yes</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="156" x="1133.25" y="289.8096"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="136" x="1143.25" y="311.4111">pick candidate address</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1160.75,449.8975,1261.75,449.8975,1273.75,461.8975,1261.75,473.8975,1160.75,473.8975,1148.75,461.8975,1160.75,449.8975" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="101" x="1160.75" y="466.0547">lease for candidate</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1134.75" y="459.5771">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="1273.75" y="459.5771">yes</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="182" x="993" y="483.8975"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="162" x="1003" y="505.499">create and return new lease</text><ellipse cx="1084" cy="564.0303" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1084" cy="564.0303" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="145" x="1266" y="532.375"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="125" x="1276" y="553.9766">reclaim expired lease</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="164" x="1256.5" y="601.5078"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="144" x="1266.5" y="623.1094">update lease information</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="1269.5" y="670.6406"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="118" x="1279.5" y="692.2422">callout lease4_select</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1302,739.7734,1375,739.7734,1387,751.7734,1375,763.7734,1302,763.7734,1290,751.7734,1302,739.7734" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="73" x="1302" y="755.9307">callout return</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="22" x="1268" y="749.4531">SKIP</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="57" x="1387" y="749.4531">CONTINUE</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="1215" y="773.7734"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="1225" y="795.375">return no lease</text><ellipse cx="1268.5" cy="853.9063" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1268.5" cy="853.9063" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="95" x="1361" y="773.7734"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="75" x="1371" y="795.375">update lease</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="133" x="1342" y="842.9063"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="113" x="1352" y="864.5078">return reused lease</text><ellipse cx="1408.5" cy="923.0391" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1408.5" cy="923.0391" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1318,483.8975,1359,483.8975,1371,495.8975,1359,507.8975,1318,507.8975,1306,495.8975,1318,483.8975" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="1342.5" y="518.5322">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="41" x="1318" y="500.0547">expired</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1371" y="493.5771">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1115.25,401.4199,1307.25,401.4199,1319.25,413.4199,1307.25,425.4199,1115.25,425.4199,1103.25,413.4199,1115.25,401.4199" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1215.25" y="436.0547">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="192" x="1115.25" y="417.5771">candidate is used by another thread</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="1319.25" y="411.0996">yes</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1211.25,1000.9941,1223.25,1012.9941,1211.25,1024.9941,1199.25,1012.9941,1211.25,1000.9941" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1106.25,352.9424,1316.25,352.9424,1328.25,364.9424,1316.25,376.9424,1106.25,376.9424,1094.25,364.9424,1106.25,352.9424" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1215.25" y="387.5771">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="210" x="1106.25" y="369.0996">candidate is reserved for another client</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="1328.25" y="362.6221">yes</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1211.25,1049.4717,1223.25,1061.4717,1211.25,1073.4717,1199.25,1061.4717,1211.25,1049.4717" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1129.75,241.8096,1292.75,241.8096,1304.75,253.8096,1292.75,265.8096,1129.75,265.8096,1117.75,253.8096,1129.75,241.8096" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="163" x="1129.75" y="257.9668">iterate over pools and subnets</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="132" x="1145.25" y="1132.4717"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="112" x="1155.25" y="1154.0732">maximum attempts</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="1157.75" y="1195.6152"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="1167.75" y="1217.2168">return no lease</text><ellipse cx="1211.25" cy="1271.2705" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1211.25" cy="1271.2705" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="1090.75,193.332,1331.75,193.332,1343.75,205.332,1331.75,217.332,1090.75,217.332,1078.75,205.332,1090.75,193.332" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1215.25" y="227.9668">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="241" x="1090.75" y="209.4893">client lease and lease address in allowed pool</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="1343.75" y="203.0117">yes</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="983.625,1311.082,995.625,1323.082,983.625,1335.082,971.625,1323.082,983.625,1311.082" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="631.3125,1341.082,643.3125,1353.082,631.3125,1365.082,619.3125,1353.082,631.3125,1341.082" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="164" x="549.3125" y="1530.5146"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="144" x="559.3125" y="1552.1162">update lease information</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="145" x="558.8125" y="1633.125"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="125" x="568.8125" y="1654.7266">reclaim expired lease</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="585.8125,1584.6475,676.8125,1584.6475,688.8125,1596.6475,676.8125,1608.6475,585.8125,1608.6475,573.8125,1596.6475,585.8125,1584.6475" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="635.3125" y="1619.2822">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="91" x="585.8125" y="1600.8047">old lease expired</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="688.8125" y="1594.3271">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="631.3125,1687.2578,643.3125,1699.2578,631.3125,1711.2578,619.3125,1699.2578,631.3125,1687.2578" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="140" x="561.3125" y="1731.2578"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="120" x="571.3125" y="1752.8594">callout lease4_renew</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="594.8125,1785.3906,667.8125,1785.3906,679.8125,1797.3906,667.8125,1809.3906,594.8125,1809.3906,582.8125,1797.3906,594.8125,1785.3906" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="73" x="594.8125" y="1801.5479">callout return</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="22" x="560.8125" y="1795.0703">SKIP</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="57" x="679.8125" y="1795.0703">CONTINUE</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="145" x="468.3125" y="1819.3906"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="125" x="478.3125" y="1840.9922">return old client lease</text><ellipse cx="540.8125" cy="1884.5234" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="540.8125" cy="1884.5234" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="95" x="674.3125" y="1819.3906"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="75" x="684.3125" y="1840.9922">update lease</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="177" x="633.3125" y="1873.5234"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="157" x="643.3125" y="1895.125">return renewed client lease</text><ellipse cx="721.8125" cy="1938.6563" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="721.8125" cy="1938.6563" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="470.8125,1482.0371,791.8125,1482.0371,803.8125,1494.0371,791.8125,1506.0371,470.8125,1506.0371,458.8125,1494.0371,470.8125,1482.0371" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="635.3125" y="1516.6719">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="321" x="470.8125" y="1498.1943">has reserved address or client lease address in allowed pool</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="803.8125" y="1491.7168">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="449.3125,1433.5596,813.3125,1433.5596,825.3125,1445.5596,813.3125,1457.5596,449.3125,1457.5596,437.3125,1445.5596,449.3125,1433.5596" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="635.3125" y="1468.1943">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="364" x="449.3125" y="1449.7168">no requested address or requested address == client lease address</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="825.3125" y="1443.2393">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="631.3125,1991.6563,643.3125,2003.6563,631.3125,2015.6563,619.3125,2003.6563,631.3125,1991.6563" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="601.8125,1385.082,660.8125,1385.082,672.8125,1397.082,660.8125,1409.082,601.8125,1409.082,589.8125,1397.082,601.8125,1385.082" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="635.3125" y="1419.7168">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="59" x="601.8125" y="1401.2393">client lease</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="672.8125" y="1394.7617">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="631.3125,2035.6563,643.3125,2047.6563,631.3125,2059.6563,619.3125,2047.6563,631.3125,2035.6563" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="206" x="528.3125" y="2079.6563"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="186" x="538.3125" y="2101.2578">get lease for requested address</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="589.3125,2133.7891,673.3125,2133.7891,685.3125,2145.7891,673.3125,2157.7891,589.3125,2157.7891,577.3125,2145.7891,589.3125,2133.7891" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="84" x="589.3125" y="2149.9463">requested lease</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="559.3125" y="2143.4688">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="685.3125" y="2143.4688">no</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="425.3125,2167.7891,466.3125,2167.7891,478.3125,2179.7891,466.3125,2191.7891,425.3125,2191.7891,413.3125,2179.7891,425.3125,2167.7891" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="41" x="425.3125" y="2183.9463">expired</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="399.3125" y="2177.4688">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="18" x="478.3125" y="2177.4688">yes</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="107" x="288.8125" y="2201.7891"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="87" x="298.8125" y="2223.3906">return no lease</text><ellipse cx="342.3125" cy="2281.9219" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="342.3125" cy="2281.9219" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="145" x="476.8125" y="2201.7891"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="125" x="486.8125" y="2223.3906">reclaim expired lease</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="164" x="467.3125" y="2270.9219"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="144" x="477.3125" y="2292.5234">update lease information</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="480.3125" y="2325.0547"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="118" x="490.3125" y="2346.6563">callout lease4_select</text><polygon fill="#FEFECE" filter="url(#f1aicqcofdeklm)" points="512.8125,2379.1875,585.8125,2379.1875,597.8125,2391.1875,585.8125,2403.1875,512.8125,2403.1875,500.8125,2391.1875,512.8125,2379.1875" style="stroke: #A80036; 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stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="95" x="571.8125" y="2413.1875"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="75" x="581.8125" y="2434.7891">update lease</text><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="133" x="552.8125" y="2467.3203"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="113" x="562.8125" y="2488.9219">return reused lease</text><ellipse cx="619.3125" cy="2532.4531" fill="#FFFFFF" filter="url(#f1aicqcofdeklm)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="619.3125" cy="2532.4531" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1aicqcofdeklm)" height="34.1328" rx="12.5" ry="12.5" style="stroke: #A80036; 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@startuml
title requestLease4 algorithm (Kea 1.8.0)
start
:get lease for the client;
if (reserved address) then (yes)
if (requested address) then (no)
:requested address = reserved address;
else (yes)
if (requested address is reserved for another client) then (yes)
:return no lease;
stop
else (no)
endif
endif
if (lease for requested address) then (yes)
if (active and owned by another client) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address == reserved address) then (no)
if (lease for requested address) then (yes)
if (active) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address in allowed pool) then (no)
:return no lease;
stop
else (yes)
endif
else (yes)
endif
else (no)
if (requested address) then (yes)
if (requested address is reserved for another client) then (yes)
:return no lease;
stop
else (no)
endif
if (lease for requested address) then (yes)
if (active and owned by another client) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address in allowed pool) then (no)
:return no lease;
stop
else (yes)
endif
else (no)
if (client lease and lease address in allowed pool) then (no)
while (iterate over pools and subnets)
:pick candidate address;
if (candidate is reserved for another client) then (no)
if (candidate is used by another thread) then (no)
if (lease for candidate) then (no)
:create and return new lease;
stop
else (yes)
if (expired) then (yes)
:reclaim expired lease;
:update lease information;
:callout lease4_select;
if (callout return) then (SKIP)
:return no lease;
stop
else (CONTINUE)
:update lease;
:return reused lease;
stop
endif
else (no)
endif
endif
else (yes)
endif
else (yes)
endif
endwhile
:maximum attempts;
:return no lease;
stop
else (yes)
endif
endif
endif
' after check
if (client lease) then (yes)
if (no requested address or requested address == client lease address) then (yes)
if (has reserved address or client lease address in allowed pool) then (yes)
:update lease information;
if (old lease expired) then (yes)
:reclaim expired lease;
else (no)
endif
:callout lease4_renew;
if (callout return) then (SKIP)
:return old client lease;
stop
else (CONTINUE)
:update lease;
:return renewed client lease;
stop
endif
else (no)
endif
else (no)
endif
else (no)
endif
:get lease for requested address;
if (requested lease) then (yes)
if (expired) then (no)
:return no lease;
stop
else (yes)
:reclaim expired lease;
:update lease information;
:callout lease4_select;
if (callout return) then (SKIP)
:return no lease;
stop
else (CONTINUE)
:update lease;
:return reused lease;
stop
endif
endif
else (no)
:create and return new lease;
stop
endif
@enduml
@startuml
title requestLease4 algorithm (Kea 1.8.0)
start
:get lease for the client;
if (reserved address) then (yes)
if (requested address) then (no)
:requested address = reserved address;
else (yes)
if (requested address is reserved for another client) then (yes)
:return no lease;
stop
else (no)
endif
endif
if (lease for requested address) then (yes)
if (active and owned by another client) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address == reserved address) then (no)
if (lease for requested address) then (yes)
if (active) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address in allowed pool) then (no)
:return no lease;
stop
else (yes)
endif
else (yes)
endif
else (no)
if (requested address) then (yes)
if (requested address is reserved for another client) then (yes)
:return no lease;
stop
else (no)
endif
if (lease for requested address) then (yes)
if (active and owned by another client) then (yes)
:return no lease;
stop
else (no)
endif
else (no)
endif
if (requested address in allowed pool) then (no)
:return no lease;
stop
else (yes)
endif
else (no)
if (client lease and lease address in allowed pool) then (no)
while (iterate over pools and subnets)
:pick candidate address;
if (candidate is reserved for another client) then (no)
if (candidate is used by another thread) then (no)
if (lease for candidate) then (no)
:create and return new lease;
stop
else (yes)
if (expired) then (yes)
:reclaim expired lease;
:update lease information;
:callout lease4_select;
if (callout return) then (SKIP)
:return no lease;
stop
else (CONTINUE)
:update lease;
:return reused lease;
stop
endif
else (no)
endif
endif
else (yes)
endif
else (yes)
endif
endwhile
:maximum attempts;
:return no lease;
stop
else (yes)
endif
endif
endif
if (client lease) then (yes)
if (no requested address or requested address == client lease address) then (yes)
if (has reserved address or client lease address in allowed pool) then (yes)
:update lease information;
if (old lease expired) then (yes)
:reclaim expired lease;
else (no)
endif
:callout lease4_renew;
if (callout return) then (SKIP)
:return old client lease;
stop
else (CONTINUE)
:update lease;
:return renewed client lease;
stop
endif
else (no)
endif
else (no)
endif
else (no)
endif
:get lease for requested address;
if (requested lease) then (yes)
if (expired) then (no)
:return no lease;
stop
else (yes)
:reclaim expired lease;
:update lease information;
:callout lease4_select;
if (callout return) then (SKIP)
:return no lease;
stop
else (CONTINUE)
:update lease;
:return reused lease;
stop
endif
endif
else (no)
:create and return new lease;
stop
endif
@enduml
PlantUML version 1.2020.15(Sun Jun 28 13:39:45 CEST 2020)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>
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