Change in libosmocore[master]: add BSSMAP coding for Location Services

[neels]

neels has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/20335 )

Change subject: add BSSMAP coding for Location Services
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Patch Set 1:

(1 comment)

https://gerrit.osmocom.org/c/libosmocore/+/20335/1/src/gsm/gsm0808.c 
File src/gsm/gsm0808.c:

https://gerrit.osmocom.org/c/libosmocore/+/20335/1/src/gsm/gsm0808.c@1363 
PS1, Line 1363: 	out = msgb_tl_put(msg, GSM0808_IE_IMSI);
              : 		rc = osmo_mobile_identity_encode_msgb(msg, &params->imsi, false);
              : 		if (rc < 0) {
              : 			msgb_free(msg);
              : 			return NULL;
              : 		}
              : 		/* write the MI value length */
              : 		*out = rc;
> We are seeing this pattern across multiple patches here. […]
the legacy mobile identity included the IEI value and tag length, which caused a lot of weird code.
because every protocol has a different IEI tag, and there's one place that has a 16bit length instead of the typical 8bit.
i considered it an improvement to encode only the MI coding part without the TL stuff around it...

that said you're right that the 8bit T and 8bit L is the typical common case and passing in the IEI tag value would avoid weird code.



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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I4d7302a4853518916b6b425e710c10568eb2ffe5
Gerrit-Change-Number: 20335
Gerrit-PatchSet: 1
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
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Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
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