[Bug 255206] No netflow traffic being sent from softflowd on PFSense

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Mon Apr 19 04:10:14 UTC 2021 

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255206

            Bug ID: 255206
           Summary: No netflow traffic being sent from softflowd on
                    PFSense
           Product: Ports & Packages
           Version: Latest
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs at FreeBSD.org
          Reporter: fredbsd at nigel.nianca.net

Running softflowd on pfsense 21.02.2-RELEASE on a netgate SG-1100 (arm64) is
failing to send any netflow traffic and is producing a segfault - see below
(i've redacted the IPs)


```
# /usr/local/bin/softflowd -D -P udp -i pppoe0 -n x.x.x.x:2055 -v 9 -T proto
-A milli -p /var/run/softflowd.pppoe0.pid -c /var/run/softflowd.pppoe0.ctl
Using pppoe0 (idx: 0)
softflowd v1.0.0 starting data collection
Exporting flows to [x.x.x.x]:2055
ADD FLOW seq:1 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:2 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:1 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:3 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:4 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:1 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:5 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:6 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:7 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:8 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:9 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:10 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:11 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:12 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:13 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:14 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:15 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:16 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:17 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:18 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:19 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:20 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:21 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:58 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:22 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:23 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:24 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:25 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:26 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:27 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:28 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:29 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:30 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:31 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:32 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:33 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:34 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:35 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:36 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:37 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:38 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:39 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:40 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:41 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:42 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:43 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:44 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:17 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:45 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:46 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:47 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:48 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:49 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:50 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:51 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:52 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:53 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:54 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:55 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:56 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:57 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:58 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:59 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:60 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:61 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
ADD FLOW seq:62 [x.x.x.x]:0 <> [x.x.x.x]:0 proto:6 vlan>:0 vlan<:0 
ether:00:00:00:00:00:00 <> 00:00:00:00:00:00
Starting expiry scan: mode 0
Queuing flow seq:11 (0x4027d370) for expiry reason 4
Finished scan 1 flow(s) to be evicted
Flow 2/0: r 0 offset 387 ie 0004 len 100(0x0064)
Segmentation fault (core dumped)
```
There's no netflow traffic being sent by the firewall, and hence no traffic
being received by the collector.

I'm not sure where to go next in terms of digging into the problem - any
suggestions?

FYI I had first raised this with netgate who suggested I follow up with the
maintainer of the package - see issue reported here:
https://redmine.pfsense.org/issues/10436 . There's a separate support ticket
where I have just been told:

> I checked with our development team on this issue.  Unfortunately Netflow is a third party package that we only "wrap up" to provide to pfSense.  As such, you will want to follow up with the package maintainer as there isn't much we can do here to provide assistance for this package as it is unsupported.  The best place to communicate is via the redmine and directly with the maintainer of the package.
> 
> For a list of supported packages, you can refer to this KB:
> https://www.netgate.com/support/supported-pfsense-packages.html

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