[asterisk-bugs] [JIRA] (ASTERISK-28955) "setvar" doesn't work properly in dahdi-channels.conf

[Marin Odrljin (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=251161#comment-251161 ] 

Marin Odrljin commented on ASTERISK-28955:
------------------------------------------

Yes we will test your patch soon.

Here is the output of  dahdi show channel 248:

{code}
Channel: 248
Description:
File Descriptor: 257
Span: 8
Extension: 42999101
Dialing: no
Context: from-pri
Caller ID: 42999104
Calling TON: 1
Caller ID subaddress:
Caller ID name:
Mailbox: none
Variables:
       GROUP_NR = 11
Destroy: 0
InAlarm: 0
Signalling Type: ISDN PRI
Radio: 0
Owner: DAHDI/i8/42999104-2
Real: DAHDI/i8/42999104-2
Callwait: <None>
Threeway: <None>
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: yes
Busy Detection: no
TDD: no
Relax DTMF: no
Dialing/CallwaitCAS: 0/0
Default law: alaw
Fax Handled: no
Pulse phone: no
HW Gains (RX/TX): Disabled/Disabled
SW Gains (RX/TX): 0.00/0.00
Dynamic Range Compression (RX/TX): 0.00/0.00
DND: no
Echo Cancellation:
        1 taps
        (unless TDM bridged) currently OFF
Wait for dialtone: 0ms
Master Channel: 218
PRI Flags: Call
PRI Logical Span: Implicit
Actual Confinfo: Num/218, Mode/0x0009
Actual Confmute: No
Hookstate (FXS only): Onhook
{code}

> "setvar" doesn't work properly in dahdi-channels.conf
> -----------------------------------------------------
>
>                 Key: ASTERISK-28955
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28955
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Configuration
>    Affects Versions: 16.11.0
>            Reporter: Marin Odrljin
>            Severity: Minor
>
> "setvar" works differently than in previous Asterisk versions, e.g. 16.4.1 or 13.11.2.
> I have following dahdi-channels.conf:
> {code}
> ; Span 1: TE8/0/1 "T8XXP (PCI) Card 0 Span 1" (MASTER) 
> ; Server X IN channels
> group = 11
> setvar = GROUP_NR=11
> context = from-pri
> switchtype = euroisdn
> signalling = pri_net
> channel => 1-15,17-21
> ; Server X OUT channels
> group = 12
> setvar = GROUP_NR=12
> context = from-pri
> switchtype = euroisdn
> signalling = pri_net
> channel => 22-31
> ; Span 2: TE8/0/2 "T8XXP (PCI) Card 0 Span 2"
> ; Asterisk .98
> group = 2
> setvar = GROUP_NR=2
> context = from-pri
> switchtype = euroisdn
> signalling = pri_net
> channel => 32-46,48-62
> ; ... other spans
> ; Span 8: TE8/0/8 "T8XXP (PCI) Card 0 Span 8" 
> ; Panasonic PBX
> group = 8
> setvar = GROUP_NR=8
> context = from-pri
> switchtype = euroisdn
> signalling = pri_net
> channel => 218-232,234-248
> {code}
> And extensions.conf:
> {code}
> [from-pri]
> exten => _X!,1,Stasis(AriStart,SPAN=${CHANNEL(dahdi_span)},CHANNEL=${CHANNEL(dahdi_channel)},GROUP=${GROUP_NR}, ...other parameters)
> {code}
> In every group I have "setvar = GROUP_NR=X". This is a convenient way how I can have only one entry in dialplan for context "from-pri" and to know from which group a call came in. In Asterisk 13 that works fine, but we have decided to slowly move toward newer Asterisk version 16 because of new features and LTS. We have started to test with Asterisk 16.4.1 when it came out and this part with "setvar" was working fine, but now we took a latest one for production server and "setvar" is not working properly anymore. In version 16.11 if call comes at span 8, variable GROUP_NR is set to value 11 (1st group and setvar from our config) and not to value 8 as defined in that group. It looks like either parsing of the config file has changed and it takes now the "setvar" entry from the first group where it occurs. If I remove all "setvar=GROUP_NR=..." except in the last group 8 then it is fine. In previous versions and the same config files GROUP_NR variable was always set to the value according to "setvar" directive from that group.



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