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<p class="details" style="font-style: italic; color: #777777;">
<a href="https://gitlab.com/nmav">Nikos Mavrogiannopoulos</a>
started a new discussion
on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/775#note_114129497">lib/tls13/anti_replay.c</a>:
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<td class="diff-line-num new new_line" data-linenumber="397" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
397
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<pre style="margin: 0;">+<span id="LC397" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_write_uint32</span><span class="p">(</span><span class="n" style="color: #333;">anti_replay</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">start_time</span><span class="p">.</span><span class="n" style="color: #333;">tv_nsec</span><span class="p">,</span> <span class="n" style="color: #333;">p</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="398" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
398
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<pre style="margin: 0;">+<span id="LC398" class="line" lang="c"> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">+=</span> <span class="mi" style="color: #099;">4</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="399" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
399
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<pre style="margin: 0;">+<span id="LC399" class="line" lang="c"> <span class="n" style="color: #333;">memcpy</span><span class="p">(</span><span class="n" style="color: #333;">p</span><span class="p">,</span> <span class="n" style="color: #333;">id</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span><span class="p">,</span> <span class="n" style="color: #333;">id</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">size</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="400" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
400
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<pre style="margin: 0;">+<span id="LC400" class="line" lang="c"> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">+=</span> <span class="n" style="color: #333;">id</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">size</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="401" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
401
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<pre style="margin: 0;">+<span id="LC401" class="line" lang="c"> <span class="n" style="color: #333;">key</span><span class="p">.</span><span class="n" style="color: #333;">data</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">buffer</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="402" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
402
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<pre style="margin: 0;">+<span id="LC402" class="line" lang="c"> <span class="n" style="color: #333;">key</span><span class="p">.</span><span class="n" style="color: #333;">size</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">buffer</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="403" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
403
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<pre style="margin: 0;">+<span id="LC403" class="line" lang="c"></span>
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404
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<pre style="margin: 0;">+<span id="LC404" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">((</span><span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_check_func</span> <span class="o" style="font-weight: 600;">||</span></span>
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<td class="diff-line-num new new_line" data-linenumber="405" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
405
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<pre style="margin: 0;">+<span id="LC405" class="line" lang="c"> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_retrieve_func</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&&</span></span>
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<td class="diff-line-num new new_line" data-linenumber="406" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
406
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<pre style="margin: 0;">+<span id="LC406" class="line" lang="c"> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_store_func</span><span class="p">)</span> <span class="p">{</span></span>
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407
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<pre style="margin: 0;">+<span id="LC407" class="line" lang="c"> <span class="n" style="color: #333;">db_check_func</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_check_func</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="408" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC408" class="line" lang="c"> <span class="n" style="color: #333;">db_retrieve_func</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_retrieve_func</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="409" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
409
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<pre style="margin: 0;">+<span id="LC409" class="line" lang="c"> <span class="n" style="color: #333;">db_store_func</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_store_func</span><span class="p">;</span></span>
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410
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<pre style="margin: 0;">+<span id="LC410" class="line" lang="c"> <span class="n" style="color: #333;">db_ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">db_ptr</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="411" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC411" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="412" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
412
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<pre style="margin: 0;">+<span id="LC412" class="line" lang="c"> <span class="n" style="color: #333;">db_check_func</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">storage_check</span><span class="p">;</span></span>
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<p dir="auto">What do you think on avoiding having a memory back-end for simplicity? I worry that this is something that apps will want to tweak anyway, for memory usage/performance of it and it may become over-engineered later to cover all possible scenarios. gnutls-serv has already such a memory back-end, and I'd expect any other servers which support resumption already do as well.</p>
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