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Wireshark-bugs: [Wireshark-bugs] [Bug 2139] unable to decode REL 5 parameter : addLcsInformation

Date: Sun, 30 Dec 2007 10:12:05 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2139





------- Comment #3 from anders.broman@xxxxxxxxxxxx  2007-12-30 10:11 GMT -------
Hi,
GSM MAP handles REL 7 and *should* handle earlier versions.
It loo´ks like the message is 
localValue: insertSubscriberData (7)
And the section with problems is lcsInformation
Here's the asn1 code for LCSInformation

LCSInformation ::= SEQUENCE {
        gmlc-List       [0]     GMLC-List       OPTIONAL,
        lcs-PrivacyExceptionList        [1]     LCS-PrivacyExceptionList       
OPTIONAL,
        molr-List               [2]     MOLR-List       OPTIONAL,
        ...,
        add-lcs-PrivacyExceptionList    [3]     LCS-PrivacyExceptionList       
OPTIONAL }
        -- add-lcs-PrivacyExceptionList may be sent only if
lcs-PrivacyExceptionList is
        -- present and contains four instances of LCS-PrivacyClass. If the
mentioned condition
        -- is not satisfied the receiving node shall discard
add-lcs-PrivacyExceptionList.
        -- If an LCS-PrivacyClass is received both in lcs-PrivacyExceptionList
and in
        -- add-lcs-PrivacyExceptionList with the same SS-Code, then the error
unexpected 
        -- data value shall be returned.

The section not decoded is LCS-PrivacyExceptionList where do you get
"addLcsInformation" from?

The LCS-PrivacyExceptionList looks wrongly encoded to me.
Regards
Anders


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