For our system, we have the need to create UUIDs, which contain in the
right part a twelve
byte hex number which identifies the machine uniquely world-wide (at
least, that's the idea).
The left part is a (kind of) inverted timestamp.
We do this using some information from CSRSI and the LPAR number. On
other platforms
like Unix and Windows this is done using the MAC address of the network
controller.
If you're interested, I can try to extract the rules from the C source.
IIRC, it's the machine serial
number, followed by the LPAR number.
Kind regards
Bernd
Am 26.12.2011 20:22, schrieb Sam Siegel:
Hello List - I'm attempting to create a licensing mechanism for a bit
of software. I would like to be able to use a unique and
non-modifiable identifier as part of the mechanism.
The CSRSI callable service and STSI instruction provide a variety of
hardware related identifiers.
CSRSI returns fields called si00pccacpid and si11v1cpcsequencecode. These
appear directly related to PCCACPID (PCCA control block) and Sequence Code
(STSI basic machine configuration)..
Is there any preference to using one field over the other? What are the
advantages and disadvantages of using each field?
Are there other fields (in same or other control blocks) that should be
used?
Please feel free to treat this as an open ended question related to
licensing mechanism and provided any related advice and tips based on
experience.
Thanks,
Sam
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
