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Harald Welte gerrit-no-reply at lists.osmocom.orgHello Jenkins Builder,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/10293
to look at the new patch set (#2).
Change subject: Deprecate ipa_ccm_idtag_parse() with ipa_ccm_id_{get,resp}_parse()
......................................................................
Deprecate ipa_ccm_idtag_parse() with ipa_ccm_id_{get,resp}_parse()
In the past, the function ipa_ccm_idtag_parse() was used to parse
the payload of IPA CCM ID RESP packets. However, the function was
based on a possible misunderstanding of the message encoding, and
callers actually counted the first (upper) length nibble as part
of the header and passed a pointer to the second
(lower) length nibble of the first TLV into this function. As such,
it was unfixable, and had to be replaced with a new function called
ipa_ccm_id_resp_parse(). At the same time, we also add
ipa_ccm_id_get_parse() to parse the slightly different format of
the IPA CCM ID GET payload.
We can never be 100% sure what is "correct", as our understanding
of the protocol is entirely based on protocol analysis, without any
official documentation available.
This patch also introduces unit test coverage for both of the new
functions.
Revert "ipa: Add libosmogsm.map entry for ipa_ccm_idtag_parse_off"
This reverts commit 7f31c90b80c08fbfe2d84d70d397402fdb38b94c.
Revert "ipa: Properly parse LV stream of a ID_GET request"
This reverts commit f558ed4bb9c0f00997b8f97c2b251a574c1a64c4.
It introduced a function/behavior that was not originally intended:
The parse of IPA CCM ID GET (8bit length followed by 1 byte tag
and variable-length payload) instead of the IPA CCM ID RESP (16bit
length followed by 1 byte tag and variable-length payload).
Change-Id: I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
---
M include/osmocom/gsm/ipa.h
M src/gsm/ipa.c
M src/gsm/libosmogsm.map
M tests/utils/utils_test.c
M tests/utils/utils_test.ok
5 files changed, 151 insertions(+), 17 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/93/10293/2
--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
Gerrit-Change-Number: 10293
Gerrit-PatchSet: 2
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder
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