[Ovmsdev] TLS CA question

Mark Webb-Johnson mark at webb-johnson.net
Fri Mar 12 09:56:29 HKT 2021


I get the same (with for-v3.3):

W (2940) ssh: Couldn't initialize wolfSSL debugging, error -174: Unknown error code

I guess it is just a warning. Probably some debugging config setting.

But wifi, web and others work ok for me. Only problems I have with for-v3.3 branch are (a) the web dashboard modem status, and (b) the TLS certificate verification against api.openvehicles.com <http://api.openvehicles.com/>. I am working on both.

Regards, Mark.

> On 12 Mar 2021, at 9:46 AM, Craig Leres <leres at xse.com> wrote:
> On 3/10/21 11:23 PM, Stephen Casner wrote:
>> Michael and anyone else who's game:
>> I now have an updated mongoose-wolfssl branch ready to be tested.  The
>> reason for the 90-second lockup mentioned in the previous post is a
>> whole lot of math for a prime-number validation that's part of the
>> Diffie-Hellman step.  It was actually 87 seconds for Mark's server and
>> 28 seconds for Michael's due to differences in certificates.  That
>> prime-number validation is required for FIPS compliance, which WolfSSL
>> supports, but we don't need it.  I spent quite a while digging into
>> this to find where the process was getting stuck.  Finally I got help
>> from WolfSSL support suggesting a configuration option that avoids
>> this extra check.
>> So now I have an implementation using mongoose with wolfssl that
>> connects successfully to both servers with a 3-4 second delay.  (I
>> don't recall what the delay was for the MBEDTLS-based implementation.)
>> I think the memory usage looks OK.  I still have not taken any steps
>> to reduce any resources used by the MBEDTLS code as accessed for other
>> purposes.
>> Included in the debugging was another version update on the Wolf code
>> to wolfssh 1.4.6 and wolfssl 4.7.0.
> I tried building/booting this on my dev module( 3.2.016-66-g93e0cf3e); but for some time now the for-v3.3 branch has been broken for me. When the module first boots the web gui works long enough for me to login and then it times out. From that point on I can't get the web gui or ssh to respond. It will return pings. The serial console is fine (and that's how I switch back to build based on master).
> I just did a fresh reboot and captured the serial console output and noticed this:
>    W (4484) ssh: Couldn't initialize wolfSSL debugging, error -174: Unknown error code
> I think it happened around the time I lost wifi connectivity.
> My sdkconfig is close to support/sdkconfig.default.hw31, I have CONFIG_SPIRAM_CACHE_WORKAROUND turned off along with a lot of vehicles.
> 		Craig
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.openvehicles.com
> http://lists.openvehicles.com/mailman/listinfo/ovmsdev

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