osmith has posted comments on this change. ( https://gerrit.osmocom.org/12524 )

Change subject: gsm23003: add osmo_imei_str_valid()
......................................................................


Patch Set 1:

(1 comment)

https://gerrit.osmocom.org/#/c/12524/1/src/gsm/gsm23003.c
File src/gsm/gsm23003.c:

https://gerrit.osmocom.org/#/c/12524/1/src/gsm/gsm23003.c@75
PS1, Line 75: the 15th check digit is not
            :  * intended for digital transmission.
Sure. From the mentioned spec:

> The IMEI (14 digits) is complemented by a Check  Digit (CD). The Check Digit 
> is not part of the digits transmitted  when the IMEI is checked, as described 
> below. The Check Digit is intended to avoid manual transmission errors, e.g. 
> when customers register stolen MEs at the operator's customer care desk. The 
> Check Digit is defined according to the Luhn formula, as defined in annex B

In OsmoMSC, we store the IMEI with 14 digits, and it will also get sent with 14 
digits from the MSC to the HLR 
(https://gerrit.osmocom.org/#/c/osmo-msc/+/12478/). Then the HLR will save the 
14 digit version in the HLR DB (OS#2541).



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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Id2d2a3a93b033bafc74c62e15297034bf4aafe61
Gerrit-Change-Number: 12524
Gerrit-PatchSet: 1
Gerrit-Owner: osmith <[email protected]>
Gerrit-Reviewer: Harald Welte <[email protected]>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-Reviewer: Max <[email protected]>
Gerrit-Reviewer: Neels Hofmeyr <[email protected]>
Gerrit-Reviewer: Pau Espin Pedrol <[email protected]>
Gerrit-Reviewer: Vadim Yanitskiy <[email protected]>
Gerrit-Reviewer: osmith <[email protected]>
Gerrit-Comment-Date: Fri, 11 Jan 2019 13:11:53 +0000
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