[tpm2] Re: CMP error: cannot duplicate context:2306 tpm:warn(2.0): out of memory for object contexts

Chris Newman <chris at mode51.software>
Newsgroups dev.linux.lists.tpm2
Message-ID <[email protected]> 
Thanks Petr,

I'm using in-kernel. I'll try abrmd and report back.


On 04/10/2021 08:31, Petr Gotthard wrote:
>
> Hello,
>
> this sounds like a known limitation of the openssl provider: 
> https://github.com/tpm2-software/tpm2-openssl/issues/4
>
> Some applications (like CMP) are too greedy and consume more resources 
> than the TPM has. The resource managers (to my best knowledge) cannot 
> swap resources from the same user.
>
> Are you using the tpm2-abrmd resource manager, or the in-kernel 
> manager? The tpm2-abrmd behaves much better.
>
> Petr
>
> ______________________________________________________________
> > Od: "Chris Newman" <chris(a)mode51.software>
> > Komu: tpm2(a)lists.01.org
> > Datum: 04.10.2021 01:41
> > Předmět: [tpm2] CMP error: cannot duplicate context:2306 
> tpm:warn(2.0): out of memory for object contexts
> >
>
> Hi,
>
> I create an EK and AK using tpm2_createek, tpm2_createak and 
> tpm2_evictcontrol to persist the AK in 0x81010002. The I use the 
> following command with DigiCert's CMPv2 server:
>
> openssl cmp -config /opt/sdk/openssl/current/ssl/openssl.cnf -provider 
> tpm2 -provider default -propquery ?provider=tpm2,tpm2.digest!=yes -cmd 
> ir -server https://demo.one.digicert.com/iot/api/v1/cmp/IOT_1234 
> <https://demo.one.digicert.com/iot/api/v1/cmp/IOT_1234> -ref 1234 
> -secret pass:1234 -recipient "/CN=mode51.software" -key 
> handle:0x81010002 -subject "/CN=TestTest" -cacertsout ./capubs.pem 
> -certout ./cl_cert.pem -tls_used -verbosity 8
>
> I get the following error:
>
> DIGEST NEW
> DIGEST INIT
> DIGEST UPDATE
> DIGEST DUP
> DIGEST FINAL
> DIGEST FREE
> DIGEST NEW
> DIGEST INIT
> DIGEST UPDATE
> DIGEST NEW
> DIGEST INIT
> DIGEST UPDATE
> DIGEST DUP
> WARNING:esys:src/tss2-esys/api/Esys_ContextLoad.c:279:Esys_ContextLoad_Finish() 
> Received TPM Error
> ERROR:esys:src/tss2-esys/api/Esys_ContextLoad.c:93:Esys_ContextLoad() 
> Esys Finish ErrorCode (0x00000902)
> DIGEST FREE
> DIGEST FREE
> DIGEST FREE
> CMP DEBUG: disconnected from CMP server
> *CMP error: cannot duplicate context:2306 tpm:warn(2.0): out of memory 
> for object contexts*
> CMP error: not able to copy ctx
> CMP error: internal error
> CMP error: error sending
> CMP error: shutdown while in init
> CMP error: transfer error:request sent: IR, expected response: IP
> RSA FREE
> RAND FREE
> RAND FREE
> RAND FREE
> PROVIDER TEARDOWN
>
> I've tried tpm2_flushcontext -t.
>
> I recompiled tpm2-openssl with the following option and that appears 
> to have worked around the issue:
>
> --disable-op-digest
>
> Is this what "?provider=tpm2,tpm2.digest!=yes" should effectively do?
>
> -- 
>
> Chris Newman
> https://mode51.software <https://mode51.software>
> @mode51software <https://twitter.com/mode51software>
>
>
>
>
> mode51 Software Ltd is registered in England and Wales
> Company Number 13007792 Registered Office 3 Orchard Way, CB24 1AG, UK
>
> GPG Encryption key 
> <https://mode51.software/downloads/chrisnewman-mode51-pub-20201111.asc>
>
>
> ----------
>
> _______________________________________________
> tpm2 mailing list -- tpm2(a)lists.01.org
> To unsubscribe send an email to tpm2-leave(a)lists.01.org
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s 
-- 

Chris Newman
+44 7958 745368
https://mode51.software <https://mode51.software>
@mode51software <https://twitter.com/mode51software>




mode51 Software Ltd is registered in England and Wales
Company Number 13007792 Registered Office 3 Orchard Way, CB24 1AG, UK

GPG Encryption key 
<https://mode51.software/downloads/chrisnewman-mode51-pub-20201111.asc>
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    <p>Thanks Petr,</p>
    <p>I'm using in-kernel. I'll try abrmd and report back.</p>
    <br>
    <div class="moz-cite-prefix">On 04/10/2021 08:31, Petr Gotthard
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:[email protected]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Hello,</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">this sounds like a
        known limitation of the openssl provider:
        <a class="moz-txt-link-freetext" href="https://github.com/tpm2-software/tpm2-openssl/issues/4">https://github.com/tpm2-software/tpm2-openssl/issues/4</a></p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Some applications
        (like CMP) are too greedy and consume more resources than the
        TPM has. The resource managers (to my best knowledge) cannot
        swap resources from the same user.</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Are you using the
        tpm2-abrmd resource manager, or the in-kernel manager? The
        tpm2-abrmd behaves much better.</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Petr</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">______________________________________________________________<br>
        &gt; Od: "Chris Newman" <a class="moz-txt-link-rfc2396E" href="mailto:[email protected]">&lt;[email protected]&gt;</a><br>
        &gt; Komu: <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a><br>
        &gt; Datum: 04.10.2021 01:41<br>
        &gt; Předmět: [tpm2] CMP error: cannot duplicate context:2306
        tpm:warn(2.0): out of memory for object contexts<br>
        &gt;</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Hi,</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">I create an EK and AK
        using tpm2_createek, tpm2_createak and tpm2_evictcontrol to
        persist the AK in 0x81010002. The I use the following command
        with DigiCert's CMPv2 server:</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">openssl cmp -config
        /opt/sdk/openssl/current/ssl/openssl.cnf -provider tpm2
        -provider default -propquery ?provider=tpm2,tpm2.digest!=yes
        -cmd ir -server <a
          href="https://demo.one.digicert.com/iot/api/v1/cmp/IOT_1234"
          moz-do-not-send="true">https://demo.one.digicert.com/iot/api/v1/cmp/IOT_1234</a>
        -ref 1234 -secret pass:1234 -recipient "/CN=mode51.software"
        -key handle:0x81010002 -subject "/CN=TestTest" -cacertsout
        ./capubs.pem -certout ./cl_cert.pem -tls_used -verbosity 8</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">I get the following
        error:</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">DIGEST NEW<br>
        DIGEST INIT<br>
        DIGEST UPDATE<br>
        DIGEST DUP<br>
        DIGEST FINAL<br>
        DIGEST FREE<br>
        DIGEST NEW<br>
        DIGEST INIT<br>
        DIGEST UPDATE<br>
        DIGEST NEW<br>
        DIGEST INIT<br>
        DIGEST UPDATE<br>
        DIGEST DUP<br>
WARNING:esys:src/tss2-esys/api/Esys_ContextLoad.c:279:Esys_ContextLoad_Finish()
        Received TPM Error<br>
ERROR:esys:src/tss2-esys/api/Esys_ContextLoad.c:93:Esys_ContextLoad()
        Esys Finish ErrorCode (0x00000902)<br>
        DIGEST FREE<br>
        DIGEST FREE<br>
        DIGEST FREE<br>
        CMP DEBUG: disconnected from CMP server<br>
        <strong>CMP error: cannot duplicate context:2306 tpm:warn(2.0):
          out of memory for object contexts</strong><br>
        CMP error: not able to copy ctx<br>
        CMP error: internal error<br>
        CMP error: error sending<br>
        CMP error: shutdown while in init<br>
        CMP error: transfer error:request sent: IR, expected response:
        IP<br>
        RSA FREE<br>
        RAND FREE<br>
        RAND FREE<br>
        RAND FREE<br>
        PROVIDER TEARDOWN</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">I've tried
        tpm2_flushcontext -t.</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">I recompiled
        tpm2-openssl with the following option and that appears to have
        worked around the issue:</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">--disable-op-digest</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;">Is this what
        "?provider=tpm2,tpm2.digest!=yes" should effectively do?</p>
      <p style="padding:0 0 0 0; margin:0 0 0 0;"> </p>
      <div class="moz-signature">-- <br>
        <br>
        Chris Newman <br>
        <a href="https://mode51.software" moz-do-not-send="true">https://mode51.software</a>
        <br>
        <a href="https://twitter.com/mode51software"
          moz-do-not-send="true">@mode51software</a> <br>
        <br>
        <img src="cid:[email protected]" class=""
          border="0"> <br>
        <br>
        <small> <br>
          mode51 Software Ltd is registered in England and Wales <br>
          Company Number 13007792 Registered Office 3 Orchard Way, CB24
          1AG, UK <br>
          <br>
          <a
href="https://mode51.software/downloads/chrisnewman-mode51-pub-20201111.asc"
            moz-do-not-send="true">GPG Encryption key</a> </small></div>
      <br>
      <br>
      ----------<br>
      <br>
      _______________________________________________<br>
      tpm2 mailing list -- <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a><br>
      To unsubscribe send an email to <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a><br>
      %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
    </blockquote>
    <div class="moz-signature">-- <br>
      <br>
      Chris Newman
      <br>
      +44 7958 745368
      <br>
      <a href="https://mode51.software">https://mode51.software</a>
      <br>
      <a href="https://twitter.com/mode51software">@mode51software</a>
      <br>
      <br>
      <img src="cid:[email protected]">
      <br>
      <br>
      <small>
        <br>
        mode51 Software Ltd is registered in England and Wales
        <br>
        Company Number 13007792 Registered Office 3 Orchard Way, CB24
        1AG, UK
        <br>
        <br>
        <a
href="https://mode51.software/downloads/chrisnewman-mode51-pub-20201111.asc">GPG
          Encryption key</a> </small></div>
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