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fixeria gerrit-no-reply at lists.osmocom.orgHello Jenkins Builder,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/c/osmo-bsc/+/18565
to look at the new patch set (#2).
Change subject: abis_nm: fix ARFCN list encoding in Set Channel Attributes
......................................................................
abis_nm: fix ARFCN list encoding in Set Channel Attributes
3GPP TS 12.21 defines coding of 'ARFCN List' attribute as follows:
+---------------------------+--------------------+
| Attribute Identifier | 1st octet |
+---------------------------+--------------------+
| Length | 2-3 octets |
+---------------------------+--------------------+
| ARFCN1 | 4-5 octets |
+---------------------------+--------------------+
| ... | ... |
+---------------------------+--------------------+
| ARFCNn | (n * 2 - 3) octets |
+---------------------------+--------------------+
so this is basically TL16V, where L16 is the length of V.
In the Siemens dialect of OML coding rules are different though:
+---------------------------+--------------------+
| Attribute Identifier | 1st octet |
+---------------------------+--------------------+
| ARFCN count | 2nd octet |
+---------------------------+--------------------+
| ARFCN1 | 4-5 octets |
+---------------------------+--------------------+
| ... | ... |
+---------------------------+--------------------+
| ARFCNn | (n * 2 - 2) octets |
+---------------------------+--------------------+
so this is TCV, where C is the amount of ARFCNs in V.
This change fixes encoding of 'ARFCN List' for other dialects,
in particular encoding of the 'Length' field (1 vs 2 octets).
I verified the results in Wireshark (generic 3GPP TS 12.21
and ip.access dialect), everything looks good.
Change-Id: Iec1826f55459ac8e9355328a1a6bb0949874db60
Related: OS#4545
---
M src/osmo-bsc/abis_nm.c
1 file changed, 28 insertions(+), 11 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/65/18565/2
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: Iec1826f55459ac8e9355328a1a6bb0949874db60
Gerrit-Change-Number: 18565
Gerrit-PatchSet: 2
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-MessageType: newpatchset
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