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

[Marin Odrljin (JIRA)]

Marin Odrljin created ASTERISK-28955:
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             Summary: "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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