On Mar 26, 2007, at 11:15 AM, Charl Barnard wrote:
Hmm..looking at the chan_zap.c, I suspect the problem might be lines
8723,
8724 (Asterisk r57457):
ss7_block_cics(linkset, e->cgu.startcic, e->cgu.endcic,
e->cgb.status, 0);
^^^
isup_cgua(linkset->ss7, e->cgu.startcic, e->cgu.endcic,
e->cgb.status);
^^^
.. shouldn't the marked structures be "cgu" in both cases, comparing
it to
ISUP_EVENT_CGB in the case block just prior to that?
Yes, I just corrected it in trunk, thanks for noticing that. It
shouldn't have caused a bug since the event types (cgu and cgb) use the
same underlying type. Also I just committed a fix for the original
problem. If you could test it out to see if it fixes your problem and
report back I would appreciate it. You're going to have to update
libss7 and asterisk for it to work, since changes were required to both
parts.
Matthew Fredrickson
Regards,
Charl
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Charl Barnard
Sent: 26 March 2007 17:43
To: [email protected]
Subject: [asterisk-ss7] libss7 CGU / CGUA type funnies
Hi All,
We've recently discovered something strange running libss7
(r74): seems like when the switch we're connected to sends us
a Circuit Group Unblock message with type Maintenance
oriented, libss7 responds with an acknowlegement for type
Hardware failure oriented, instead of Maintenance, and vice
versa when CGU is received with message type Hardware-please
see the following trace:
+---------+---------------------------------------------+-----
----------
+---------+---------------------------------------------+----
-----------------+
|BITMASK |ID Name
|Comment or Value
|
+---------+---------------------------------------------+-----
----------
+---------+---------------------------------------------+----
-----------------+
|5:08:34 PM,851,406 1:E (Rx):15 MTP-L2 MSU ISUP CGU 0-XXX-0
|2-XXX-0
000-02 |
|MTP Level 2 (MTP-L2) MSU (= Message Signal Unit)
|
|Message Signal Unit
|
|-0000111 |Backward Sequence Number |7
|
|1------- |Backward Indicator Bit |1
|
|-1100000 |Forward Sequence Number |96
|
|1------- |Forward Indicator Bit |1
|
|--010000 |Length Indicator |16
|
|00------ |Spare |0
|
|----0101 |Service Indicator |ISDN
User Part
|
|--00---- |Sub-Service: Priority
|Spare/priority 0
(U.S.A. only) |
|00------ |Sub-Service: Network Ind |International
message |
|**b14*** |Destination Point Code |0-XXX-0
|
|**b14*** |Originating Point Code |2-XXX-0
|
|ITU-T WHITE BOOK ISDN User Part (ISUP) CGU (= Circuit Group
|Unblocking)
|
|Circuit Group Unblocking
|
|0010---- |Signalling Link Selection |2
|
|**b12*** |Circuit Ident Code |000-02
|
|0000---- |Spare |0
|
|00011001 |Message Type |25
|
|------00 |Cct grp supervis msg type |Maintenance
oriented |
|000000-- |Spare |0
|
|00000001 |Pointer to parameter |1
|
|Range and status
|
|00000101 |Parameter Length |5
|
|00011101 |Range |29
|
|**b30*** |Status
|'111111111111110111111111111111'B |
|00------ |Filler |0
|
+---------+---------------------------------------------+-----
----------
+---------+---------------------------------------------+----
-----------------+
|BITMASK |ID Name
|Comment or Value
|
+---------+---------------------------------------------+-----
----------
+---------+---------------------------------------------+----
-----------------+
|5:08:34 PM,925,025 1:F (Rx):15 MTP-L2 MSU ISUP CGUA 2-XXX-0
|0-XXX-0
000-02 |
|MTP Level 2 (MTP-L2) MSU (= Message Signal Unit)
|
|Message Signal Unit
|
|-1100000 |Backward Sequence Number |96
|
|1------- |Backward Indicator Bit |1
|
|-0001000 |Forward Sequence Number |8
|
|1------- |Forward Indicator Bit |1
|
|--010000 |Length Indicator |16
|
|00------ |Spare |0
|
|----0101 |Service Indicator |ISDN
User Part
|
|--00---- |Sub-Service: Priority
|Spare/priority 0
(U.S.A. only) |
|00------ |Sub-Service: Network Ind |International
message |
|**b14*** |Destination Point Code |2-XXX-0
|
|**b14*** |Originating Point Code |0-XXX-0
|
|ITU-T WHITE BOOK ISDN User Part (ISUP) CGUA (= Circuit Group
|Unblocking
Ack.) |
|Circuit Group Unblocking Ack.
|
|0000---- |Signalling Link Selection |0
|
|**b12*** |Circuit Ident Code |000-02
|
|0000---- |Spare |0
|
|00011011 |Message Type |27
|
|------01 |Cct grp supervis msg type
|Hardware failure
oriented |
|000000-- |Spare |0
|
|00000001 |Pointer to parameter |1
|
|Range and status
|
|00000101 |Parameter Length |5
|
|00011101 |Range |29
|
|**b30*** |Status
|'111111111111110111111111111111'B |
|00------ |Filler |0
|
Any ideas? This obviously leaves the two ends confused about
circuit state.
Thanks,
Charl
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