Implement sys_publish_service for Linux based on libmdns

[bewee-i]

This sugests using libmdns for Linux MDNS advertisements.

Whereas this works well for comissioning, the application does not seem to receive onoff commands:

RUST_LOG="matter" cargo run --example onoff_light

[2022-09-13T15:57:17Z INFO  matter::fabric] MDNS Service Name: DC14FBA3A8A89255-0000000000BC5C01
[2022-09-13T15:57:17Z INFO  matter::sys::sys_linux] mDNS Registration Type _matter._tcp
[2022-09-13T15:57:17Z INFO  matter::sys::sys_linux] mDNS properties []
[2022-09-13T15:57:17Z INFO  matter::fabric] Adding new fabric at index 1
Added OnOff Light Device type at endpoint id: 1
Data Model now is: node:
endpoint 0: clusters:[ { id:29, attrs[ 65531: custom-attribute, 1: custom-attribute ],  },  { id:40, attrs[ 65531: custom-attribute, 2: 65521, 4: 32770, 7: 2, 9: 1 ],  },  { id:48, attrs[ 65531: custom-attribute, 0: 0, 2: 2, 3: 2, 1: custom-attribute ],  },  { id:49, attrs[ 65531: custo
m-attribute, 65532: 2 ],  },  { id:62, attrs[ 65531: custom-attribute ],  },  { id:31, attrs[ 65531: custom-attribute, 0: custom-attribute, 1: custom-attribute, 2: 4, 3: 3, 4: 3 ],  }]
endpoint 1: clusters:[ { id:29, attrs[ 65531: custom-attribute, 1: custom-attribute ],  },  { id:6, attrs[ 65531: custom-attribute, 0: false ],  }]

chip-tool onoff off 12344321 1

[1663084119.051395][81036:81036] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /tmp/chip_kvs
[1663084119.052536][81036:81036] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /tmp/chip_factory.ini
[1663084119.052557][81036:81036] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /tmp/chip_config.ini
[1663084119.052565][81036:81036] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /tmp/chip_counters.ini
[1663084119.052616][81036:81036] CHIP:DL: writing settings to file (/tmp/chip_counters.ini-HmLZ7v)
[1663084119.052706][81036:81036] CHIP:DL: renamed tmp file to file (/tmp/chip_counters.ini)
[1663084119.052711][81036:81036] CHIP:DL: NVS set: chip-counters/reboot-count = 96 (0x60)
[1663084119.052975][81036:81036] CHIP:DL: Got Ethernet interface: enp11s0
[1663084119.053101][81036:81036] CHIP:DL: Found the primary Ethernet interface:enp11s0
[1663084119.054039][81036:81036] CHIP:DL: Got WiFi interface: wlp9s0
[1663084119.054050][81036:81036] CHIP:DL: Failed to reset WiFi statistic counts
[1663084119.054068][81036:81036] CHIP:IN: UDP::Init bind&listen port=0
[1663084119.054082][81036:81036] CHIP:IN: UDP::Init bound to port=40650
[1663084119.054084][81036:81036] CHIP:IN: UDP::Init bind&listen port=0
[1663084119.054091][81036:81036] CHIP:IN: UDP::Init bound to port=57009
[1663084119.054093][81036:81036] CHIP:IN: BLEBase::Init - setting/overriding transport
[1663084119.054095][81036:81036] CHIP:IN: TransportMgr initialized
[1663084119.054100][81036:81036] CHIP:FP: Initializing FabricTable from persistent storage
[1663084119.054126][81036:81036] CHIP:TS: Last Known Good Time: 2022-09-06T15:14:17
[1663084119.054429][81036:81036] CHIP:FP: Fabric index 0x1 was retrieved from storage. Compressed FabricId 0xDC14FBA3A8A89255, FabricId 0x0000000000000001, NodeId 0x000000000001B669, VendorId 0xFFF1
[1663084119.054703][81036:81036] CHIP:ZCL: Using ZAP configuration...
[1663084119.054837][81036:81036] CHIP:DL: MDNS failed to join multicast group on enp11s0 for address type IPv4: ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:758: Inet Error 0x00000110: Address not found
[1663084119.055161][81036:81036] CHIP:DL: MDNS failed to join multicast group on wlp9s0 for address type IPv4: ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:758: Inet Error 0x00000110: Address not found
[1663084119.055255][81036:81036] CHIP:CTL: System State Initialized...
[1663084119.055265][81036:81036] CHIP:CTL: Stopping commissioning discovery over DNS-SD
[1663084119.055277][81036:81036] CHIP:CTL: Setting attestation nonce to random value
[1663084119.055283][81036:81036] CHIP:CTL: Setting CSR nonce to random value
[1663084119.055292][81036:81036] CHIP:IN: UDP::Init bind&listen port=5550
[1663084119.055300][81036:81036] CHIP:IN: UDP::Init bound to port=5550
[1663084119.055309][81036:81036] CHIP:IN: UDP::Init bind&listen port=5550
[1663084119.055321][81036:81036] CHIP:IN: UDP::Init bound to port=5550
[1663084119.055324][81036:81036] CHIP:IN: TransportMgr initialized
[1663084119.055383][81036:81041] CHIP:DL: CHIP task running
[1663084119.055443][81036:81041] CHIP:CTL: Stopping commissioning discovery over DNS-SD
[1663084119.055469][81036:81041] CHIP:CTL: Setting attestation nonce to random value
[1663084119.055490][81036:81041] CHIP:CTL: Setting CSR nonce to random value
[1663084119.055677][81036:81041] CHIP:CTL: Generating NOC
[1663084119.055853][81036:81041] CHIP:FP: Validating NOC chain
[1663084119.056135][81036:81041] CHIP:FP: NOC chain validation successful
[1663084119.056157][81036:81041] CHIP:FP: Updated fabric at index: 0x1, Node ID: 0x000000000001B669
[1663084119.056161][81036:81041] CHIP:TS: Last Known Good Time: 2022-09-06T15:14:17
[1663084119.056163][81036:81041] CHIP:TS: New proposed Last Known Good Time: 2021-01-01T00:00:00
[1663084119.056165][81036:81041] CHIP:TS: Retaining current Last Known Good Time
[1663084119.056364][81036:81041] CHIP:FP: Metadata for Fabric 0x1 persisted to storage.
[1663084119.056580][81036:81041] CHIP:TS: Committing Last Known Good Time to storage: 2022-09-06T15:14:17
[1663084119.056753][81036:81041] CHIP:CTL: Joined the fabric at index 1. Compressed fabric ID is: 0x0000000000000000
[1663084119.056760][81036:81041] CHIP:IN: UDP::Init bind&listen port=5550
[1663084119.056769][81036:81041] CHIP:IN: UDP::Init bound to port=5550
[1663084119.056771][81036:81041] CHIP:IN: UDP::Init bind&listen port=5550
[1663084119.056777][81036:81041] CHIP:IN: UDP::Init bound to port=5550
[1663084119.056779][81036:81041] CHIP:IN: TransportMgr initialized
[1663084119.057755][81036:81041] CHIP:TOO: Sending command to node 0xbc5c01
[1663084119.057760][81036:81041] CHIP:CSM: FindOrEstablishSession: PeerId = [1:0000000000BC5C01]
[1663084119.057763][81036:81041] CHIP:CSM: FindOrEstablishSession: No existing OperationalSessionSetup instance found
[1663084119.057769][81036:81041] CHIP:CTL: OperationalSessionSetup[1:0000000000BC5C01]: State change 1 --> 2
[1663084119.057832][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on enp11s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084119.057915][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on wlp9s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084119.057941][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on docker0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084119.057945][81036:81041] CHIP:DIS: mDNS broadcast had only partial success: 5 successes and 3 failures.
[1663084119.257807][81036:81041] CHIP:DIS: Checking node lookup status after 200 ms
[1663084120.058243][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on enp11s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084120.058442][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on wlp9s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084120.058498][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on docker0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084120.058505][81036:81041] CHIP:DIS: mDNS broadcast had only partial success: 3 successes and 3 failures.
[1663084122.059542][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on enp11s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084122.059773][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on wlp9s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084122.059838][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on docker0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084122.059852][81036:81041] CHIP:DIS: mDNS broadcast had only partial success: 3 successes and 3 failures.
[1663084126.059687][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on enp11s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084126.059904][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on wlp9s0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084126.059953][81036:81041] CHIP:DIS: Warning: Attempt to mDNS broadcast failed on docker0:  ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/inet/UDPEndPointImplSockets.cpp:406: OS Error 0x02000065: Network is unreachable
[1663084126.059959][81036:81041] CHIP:DIS: mDNS broadcast had only partial success: 3 successes and 3 failures.
[1663084134.058218][81036:81041] CHIP:DIS: Checking node lookup status after 15001 ms
[1663084134.058267][81036:81041] CHIP:DIS: OperationalSessionSetup[1:0000000000BC5C01]: operational discovery failed: ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/lib/address_resolve/AddressResolve_DefaultImpl.cpp:174: CHIP Error 0x00000032: Timeout
[1663084134.058281][81036:81041] CHIP:-: ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/lib/address_resolve/AddressResolve_DefaultImpl.cpp:174: CHIP Error 0x00000032: Timeout at ../Projects/connectedhomeip/examples/chip-tool/commands/clusters/ModelCommand.cpp:62
[1663084134.058496][81036:81036] CHIP:CTL: Shutting down the commissioner
[1663084134.058530][81036:81036] CHIP:CTL: Stopping commissioning discovery over DNS-SD
[1663084134.058595][81036:81036] CHIP:CTL: Shutting down the controller
[1663084134.058618][81036:81036] CHIP:IN: Expiring all sessions for fabric 0x1!!
[1663084134.058626][81036:81036] CHIP:FP: Forgetting fabric 0x1
[1663084134.058645][81036:81036] CHIP:TS: Pending Last Known Good Time: 2022-09-06T15:14:17
[1663084134.058773][81036:81036] CHIP:TS: Previous Last Known Good Time: 2022-09-06T15:14:17
[1663084134.058781][81036:81036] CHIP:TS: Reverted Last Known Good Time to previous value
[1663084134.058812][81036:81036] CHIP:CTL: Shutting down the commissioner
[1663084134.058821][81036:81036] CHIP:CTL: Stopping commissioning discovery over DNS-SD
[1663084134.058844][81036:81036] CHIP:CTL: Shutting down the controller
[1663084134.058852][81036:81036] CHIP:CTL: Shutting down the System State, this will teardown the CHIP Stack
[1663084134.059164][81036:81036] CHIP:DMG: IM WH moving to [Uninitialized]
[1663084134.059176][81036:81036] CHIP:DMG: IM WH moving to [Uninitialized]
[1663084134.059181][81036:81036] CHIP:DMG: IM WH moving to [Uninitialized]
[1663084134.059186][81036:81036] CHIP:DMG: IM WH moving to [Uninitialized]
[1663084134.059197][81036:81036] CHIP:DMG: All ReadHandler-s are clean, clear GlobalDirtySet
[1663084134.059226][81036:81036] CHIP:BLE: BleConnectionDelegate::CancelConnection is not implemented.
[1663084134.059434][81036:81036] CHIP:DL: writing settings to file (/tmp/chip_counters.ini-HHa4ZS)
[1663084134.059796][81036:81036] CHIP:DL: renamed tmp file to file (/tmp/chip_counters.ini)
[1663084134.059820][81036:81036] CHIP:DL: NVS set: chip-counters/total-operational-hours = 0 (0x0)
[1663084134.059835][81036:81036] CHIP:DL: Inet Layer shutdown
[1663084134.059844][81036:81036] CHIP:DL: BLE shutdown
[1663084134.059852][81036:81036] CHIP:DL: System Layer shutdown
[1663084134.059888][81036:81036] CHIP:TOO: Run command failure: ../Projects/connectedhomeip/examples/chip-tool/third_party/connectedhomeip/src/lib/address_resolve/AddressResolve_DefaultImpl.cpp:174: CHIP Error 0x00000032: Timeout

Reference: #16

[kedars]

Does the on/off problem exist on a fresh restart of the plonk server, as well as within the same instantiation post-commissioning?

I'll go ahead and merge this for now. Can you file an issue so this known issue is tracked.

I will also likely test with a Linux build once I get a hands on a machine, to check if there is some other libmdns expectation not being met

[bewee-i]

Does the on/off problem exist on a fresh restart of the plonk server, as well as within the same instantiation post-commissioning?

Yes, same problem in both scenarios.

I will also likely test with a Linux build once I get a hands on a machine, to check if there is some other libmdns expectation not being met

Sounds also reasonable to quickly do this before merging. You should additionally be able to test it on your Mac by copying the contents of the sys_linux.rs to the sys_macos.rs because this lib should be cross-platform compatible.