[tpm2] Re: How to remove contexts using tpm2-tools v3.1.3?
Han <keepsimple at gmail.com>
| Newsgroups | dev.linux.lists.tpm2 |
|---|---|
| Message-ID | <CAEjGaqff5xoWAPnZz7RFZzcu-yw9=uOWx160m5-GMm+hJ6+k+Q@mail.gmail.com> |
On Wed, Dec 15, 2021 at 11:25 AM Roberts, William C < william.c.roberts(a)intel.com> wrote: > Unfortunately, no. > > Can you update to the latest release? The newest tools release would > vastly enhance your experience. > Thanks for your reply! I'd love to update. My environment is: Debian 10 (Buster) based Raspbian, but kernel is already updated to 5.10. What would be the recommended way to update "tpm2-tools" ? I can think of the following options but don't know which one is better / more reliable / easier : - git clone from github master branch and then build from source code. - find a tarball of tpm2-tools v4.0 or newer and then install per included instructions, if any. - somehow upgrade OS to newer Debian release 11 Bulleye, which seems to include tpm2-tools 5.0. This has some unknowns due to my kernel might need to update again. Thanks Han > > Could you use the python bindings: > pip install tpm2-pytss > That would require tpm2-tss libraries from version 2.4.0 or newer. > ------------------------------ > *From:* Han <keepsimple(a)gmail.com> > *Sent:* Wednesday, December 15, 2021 12:50 PM > *To:* tpm2(a)lists.01.org <tpm2(a)lists.01.org> > *Subject:* [tpm2] How to remove contexts using tpm2-tools v3.1.3? > > Hi, > > I'm new to tpm2-tools and am using tpm2-tools version 3.1.3 on Raspberry > Pi CM4. It turns out it doesn't have tpm2_flushcontext which was added in > v4.0. Is there any other tools in tpm2-tools 3.1.3 that can remove > contexts? My goal is to free up some memory in TPM as it returned the > following error: > > $ tpm2_rc_decode 0x902 > error layer > hex: 0x0 > identifier: TSS2_TPM_RC_LAYER > description: Error produced by the TPM > format 0 warning code > hex: 0x02 > name: TPM2_RC_OBJECT_MEMORY > description: out of memory for object contexts > > -- > > Thanks > > Han > >
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<div dir="ltr"><div dir="ltr"><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 15, 2021 at 11:25 AM Roberts, William C <<a href="mailto:[email protected]">[email protected]</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <div dir="ltr"> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> Unfortunately, no.</div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> <br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> Can you update to the latest release? The newest tools release would vastly enhance your experience.</div></div></blockquote><div><br></div><div>Thanks for your reply! </div><div><br></div><div>I'd love to update. My environment is: Debian 10 (Buster) based Raspbian, but kernel is already updated to 5.10. What would be the recommended way to update "tpm2-tools" ? </div><div><br></div><div>I can think of the following options but don't know which one is better / more reliable / easier :</div><div><br></div><div>- git clone from github master branch and then build from source code.</div><div>- find a tarball of tpm2-tools v4.0 or newer and then install per included instructions, if any.</div><div>- somehow upgrade OS to newer Debian release 11 Bulleye, which seems to include tpm2-tools 5.0. This has some unknowns due to my kernel might need to update again.</div><div><br></div><div>Thanks</div><div>Han</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> <br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> Could you use the python bindings:</div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> pip install tpm2-pytss</div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"> <span style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt">That would require tpm2-tss libraries from version 2.4.0 or newer.</span><br> </div> <div id="gmail-m_-3497145641943951761appendonsend"></div> <hr style="display:inline-block;width:98%"> <div id="gmail-m_-3497145641943951761divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Han <<a href="mailto:[email protected]" target="_blank">[email protected]</a>><br> <b>Sent:</b> Wednesday, December 15, 2021 12:50 PM<br> <b>To:</b> <a href="mailto:[email protected]" target="_blank">[email protected]</a> <<a href="mailto:[email protected]" target="_blank">[email protected]</a>><br> <b>Subject:</b> [tpm2] How to remove contexts using tpm2-tools v3.1.3?</font> <div> </div> </div> <div> <div dir="ltr">Hi, <div><br> </div> <div><span style="font-family:inherit;font-size:15px;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;color:rgb(35,38,41)">I'm new to tpm2-tools and am using tpm2-tools version 3.1.3 on Raspberry Pi CM4. It turns out it doesn't have</span><span style="font-family:inherit;font-size:15px;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;color:rgb(35,38,41)"> </span><span style="font-family:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;color:rgb(35,38,41);white-space:pre-wrap;font-size:13px">tpm2_flushcontext </span><span style="font-family:inherit;font-size:15px;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;color:rgb(35,38,41)">which was added in v4.0. </span><span style="font-family:inherit;font-size:15px;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;color:rgb(35,38,41)">Is there any other tools in tpm2-tools 3.1.3 that can remove contexts? My goal is to free up some memory in TPM as it returned the following error:</span></div> <div style="margin:0px;padding:0px 16px 0px 0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;font-size:13px;vertical-align:top;box-sizing:inherit;width:auto;min-width:0px;color:rgb(35,38,41)"> <div style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:15px;vertical-align:baseline;box-sizing:inherit;width:659px"> <pre style="margin-top:0px;margin-bottom:0px;padding:12px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:1.30769;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px"><code style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;vertical-align:baseline;box-sizing:inherit;background-color:transparent;white-space:inherit;border-radius:0px">$ tpm2_rc_decode 0x902 error layer hex: 0x0 identifier: TSS2_TPM_RC_LAYER description: Error produced by the TPM format 0 warning code hex: 0x02 name: TPM2_RC_OBJECT_MEMORY description: out of memory for object contexts</code></pre> <pre style="margin-top:0px;margin-bottom:0px;padding:12px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:1.30769;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px">--</pre> <pre style="margin-top:0px;margin-bottom:0px;padding:12px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:1.30769;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px">Thanks</pre> <pre style="margin-top:0px;margin-bottom:0px;padding:12px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:1.30769;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px">Han</pre> </div> </div> </div> </div> </div> </blockquote></div></div>