VFR validation of IP address and iSCSI IQN

[Atul Gupta <atul.gupta@chelsio.com>]

Hi,

I want to validate IP address and iSCSI IQN within the vfr form. Want to avoid callback hence removed the INTERACTIVE flags, tried few things but none seems to work except for input length check, how to validate the input buffer.

Eg:

string  name    = iqn,
            varid   = UD_CONFIG_IFR_NVDATA.InitiatorName,
            prompt  = STRING_TOKEN(STR_ISCSI_CONFIG_INIT_NAME),
            help    = STRING_TOKEN(STR_ISCSI_CONFIG_INIT_NAME_HELP),
            flags   = 0,
            key     = KEY_INITIATOR_NAME2,
            minsize = 8,
            maxsize = ISCSI_NAME_IFR_MAX_SIZE,
                                             inconsistentif prompt = STRING_TOKEN(STR_INVALID_IQN),
                                             NOT
                                             pushthis != stringref(STRING_TOKEN(STR_STRING_CHECK))
                                             endif
    endstring;

also tried
span (flags = LAST_NON_MATCH, pushthis, stringref(STRING_TOKEN(STR_STRING_CHECK)), 0) != 0, but did not help.

Any reference to validate the input buffer?

Thanks
Atul