[openssl-users] Openssl asynchronous operation in real network

[Ananthu Unnikrishnan]

Can anyone please help on this? If u need any additional information please
let me know.

On Mon, Jan 7, 2019 at 6:25 PM Ananthu Unnikrishnan <ananthuu741 at gmail.com>
wrote:

> Hi all,
>
> Adding more details to the previous mail. We have edited the OpenSSL code
> for implementing the polling for changed fd's as in OpenSSL speed command.
> Attached the code snippet of the same along with this mail.
> Mentioned below some observations which found doubtful:
>
> 1) We have got prints in ASYNC_FINISH case, before getting print in
> ASYNC_PAUSE case. Attaching the log also, so you can understand easily.
> 2) Shown below the code snippet which we have written to provide a write
> on fd.
>
> if ((waitctx = ASYNC_get_wait_ctx((ASYNC_JOB *)job)) == NULL) {
>         printf("In dynamic engine | waitctx == NULL : %d\n", __LINE__);
>         return ret;
>     }
>
>     printf("\n----- In dynamic engine | After pausing | job is %lx |
> waitctx in resume job %lx |-----\n", job, waitctx);
>
>         if ((ret = ASYNC_WAIT_CTX_get_fd(waitctx, engine_id, &efd,
>                               &custom)) > 0) {
>         if (write(efd, &buf, sizeof(uint64_t)) == -1) {
>             printf("\nFailed to write\n");
>         }
>     }
>
> Here waitctx is getting NULL when we tried to fetch waitctx using
> ASYNC_get_wait_ctx(). We have printed data of sizeof(ASYNC_JOB) ie.1176
> bytes contained in the job address from the engine,  we got correct data
> before calling ASYNC_pause() and but got half data zero data when we tried
> to access the same address after ASYNC_pause().
>
> Attaching both job structure contents before and after calling
> ASYNC_pause(). Also, we got the correct data in the same address when we
> have printed from ssl_start_async_job() before polling starts, where we
> have started the async_job
> .
> The prints starting with "In dynamic engine" are prints inside the engine,
> rest prints are from ss/ssl_lib.c. Kindly check this and please point out
> if anything is wrong somewhere. Thanks in advance.
>
>
> On Sun, Jan 6, 2019 at 10:30 AM Ananthu Unnikrishnan <
> ananthuu741 at gmail.com> wrote:
>
>> Hi all,
>>
>>        We have implemented a dynamic engine and tested in the async mode
>> using OpenSSL speed command. But in a real network scenario, we have seen
>> only starting the async_job(in file ssl/ssl_lib.c, function:
>> ssl_start_async_job) in the OpenSSL. We haven't seen polling async_fd's for
>> resuming the job as in apps/speed.c(in speed command case).
>>         So can anyone please suggest any solution for resuming the
>> async_jobs in real network scenario? Thanks in advance.
>>
>>
>>
>>
>
> --
> With best Regards,
>
>          Ananthu
>
>
>

-- 
With best Regards,

         Ananthu
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