Relax switch vlan filter

[G10h4ck]

Address recent bug discovered in Quintana Libre with eth1.2 LibreRouter interface being ignored when specific configuration section for it is needed.

[codecov-commenter]

Codecov Report

Merging #900 (3bafc4d) into master (58bb697) will decrease coverage by 0.13%.
The diff coverage is 63.88%.

@@            Coverage Diff             @@
##           master     #900      +/-   ##
==========================================
- Coverage   74.54%   74.41%   -0.14%     
==========================================
  Files          43       43              
  Lines        3658     3682      +24     
==========================================
+ Hits         2727     2740      +13     
- Misses        931      942      +11     

Impacted Files	Coverage Δ
...ges/lime-system/files/usr/lib/lua/lime/network.lua	75.93% <55.17%> (-2.25%)	⬇️
...oto-babeld/files/usr/lib/lua/lime/proto/babeld.lua	95.89% <100.00%> (ø)
...oto-batadv/files/usr/lib/lua/lime/proto/batadv.lua	96.87% <100.00%> (+0.20%)	⬆️

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[ilario]

I did not test, but looks like the second %s is missing in the log line "dev_parser found Wifi device".

Neither this I tested: can the CPU port be discovered with something like "swconfig dev switch0 help"?

What will happen with DSA? The CPU port is not there anymore?

[G10h4ck]

I did not test, but looks like the second %s is missing in the log line "dev_parser found Wifi device".

It's not that a %s is missing is that the rawif argument (and is not even defined) doesn't make sense for WiFi devices and extra %s would have made the code crash for nil dereferenciation, thanks for pointing this out. Should be fixed now.

Neither this I tested: can the CPU port be discovered with something like "swconfig dev switch0 help"?

Nope it doesn't give that information

What will happen with DSA? The CPU port is not there anymore?

DSA should in theory report this information, but many devices have not been ported to DSA yet and I haven't got info on how really do that reliably for devices which have already been ported to DSA.

[spiccinini]

Hi! @G10h4ck What do you think about providing an explicit per device file, like the board.json file (or even adding more information to it) ? And maybe do a fallback to the automatic diacovery behaviour if the information is not present?

[G10h4ck]

We have discussed such an option in the past, but there was some kind of agreement that we didn't want to do this on LibreMesh behalf and that should be addressed on OpenWrt side, where it is half done with board.json file, which get manually written when a new device support is added to OpenWrt. In fact Linux kernel have all this information into his code but there is no (or we haven't found) a way to access that information.

[ilario]

So I understand that we can merge this, right?

[ilario]

Info just got at Battlemesh from @arinc9:

the CPU ports are the one which have such a file:

/sys/firmware/devicetree/base/ethernet@1e100000/mdio-bus/switch@1f/ports/port@6/ethernet

Ref.
https://lkml.kernel.org/netdev/f7d5d961-8f66-e744-ab59-0077445d5873@arinc9.com/T/

[G10h4ck]

that is a really interesting info! Thanks @ilario ! If you can ask also if it is possible to get more informations about the switch in a "standard" way would be great.
Does this method works also with pre-DSA versions?
we just need to check if it is well supported on all kernel versions used by OWRT and then improve our code!

[arinc9]

that is a really interesting info! Thanks @ilario ! If you can ask also if it is possible to get more informations about the switch in a "standard" way would be great.

We have the network interfaces DSA creates. Other than that, you can check the devicetree bindings for DSA.

Does this method works also with pre-DSA versions? we just need to check if it is well supported on all kernel versions used by OWRT and then improve our code!

No, the binding on the referred link is only for DSA. Keep in mind that not all targets on OpenWrt use DSA.