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CC3235MODAS: TLS protocol support

Thomas Bisig
Prodigy 40 points
Part Number: CC3235MODAS
Other Parts Discussed in Thread: CC3235S, UNIFLASH

Tool/software:

My TCP implementation is working fine. Now I wanted to add TLS functionality using parts of the tcpEchoTLS.c implementation of simplelink_cc32xx_sdk_7_10_00_13\examples\rtos\CC3235S_LAUNCHXL\ns\tcpechotls.
When the statement 

status |= SlNetIf_loadSecObj(SLNETIF_SEC_OBJ_TYPE_RSA_PRIVATE_KEY,
PRIVATE_KEY_FILE, strlen(PRIVATE_KEY_FILE)-1, srvKeyPem,
srvKeyPemLen, SLNETIF_ID_1);

is executed the following error is returned: 

/* Parameters are invalid */
#define SL_RET_CODE_INVALID_INPUT (-2006L)

 Not entirely sure about what to do I changed the statement to

status |= SlNetIf_loadSecObj(SLNETIF_SEC_OBJ_TYPE_RSA_PRIVATE_KEY,
PRIVATE_KEY_FILE, strlen(PRIVATE_KEY_FILE), srvKeyPem,
srvKeyPemLen, SLNETIF_ID_1);

Now the code failes at

      status |= SlNetSock_secAttribSet(pSecAttribHdl,
                                       SLNETSOCK_SEC_ATTRIB_PRIVATE_KEY, PRIVATE_KEY_FILE,
                                       sizeof(PRIVATE_KEY_FILE));
I get  SL_ERROR_BSD_ESOCKTNOSUPPORT   (-94L)  /* Socket type not supported */

What might cause this error?
I guess it is related to some .syscfg file settings...
  • 0
    TI__Mastermind 21585 points

    this thread has been assigned to a Wi-Fi engineer and he should respond shortly

  • 0 in reply to AB
    TI__Genius 13601 points

    Hi,

    You get this error if the interface does not exist or if you have an invalid parameter. 

    Are you using the Dummy Key and Certificate or are you using your own?

    Best,

    Rogelio

  • 0 in reply to RogelioD
    Prodigy 40 points

    Hi Rogelio

    I assumed that the certificate.h file (srvCAPem / srvKeyPem string) holds this information in this example.

    So what are these strings for?

    Is the instruction 

    SlNetSock_secAttribSet(pSecAttribHdl,
                                           SLNETSOCK_SEC_ATTRIB_PRIVATE_KEY, PRIVATE_KEY_FILE,
                                           sizeof(PRIVATE_KEY_FILE))

    loading the file?

    If so: I have probably have to program these files first with Uniflash - right?

    Thomas

  • 0 in reply to Thomas Bisig
    TI__Genius 13601 points

    Hi Thomas,

    If you are using your own files, then yes you will need to program them first.

    I would go over section 7 of the Network processors guide

    https://www.ti.com/lit/ug/swru455m/swru455m.pdf 

    Best,

    Rogelio