Core: TRADFRI cannot be set up - "Unknown error occured"

[mmmente]

Home Assistant release with the issue:

0.100.1

Last working Home Assistant release (if known):
unknown

Operating environment (Hass.io/Docker/Windows/etc.):

Docker

Integration:

https://www.home-assistant.io/integrations/tradfri/

Description of problem:
When setting up Tradfri, the integration panel to enter the security code comes up. No matter what I enter (correct or incorrect data), it gives shows "Unknown error occured".

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

Traceback (if applicable):

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_protocol.py", line 418, in start
    resp = await task
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_app.py", line 458, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_middlewares.py", line 119, in impl
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/real_ip.py", line 40, in real_ip_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 73, in ban_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 231, in auth_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 128, in handle
    result = await result
  File "/usr/src/homeassistant/homeassistant/components/config/config_entries.py", line 164, in post
    return await super().post(request, flow_id)
  File "/usr/src/homeassistant/homeassistant/components/http/data_validator.py", line 48, in wrapper
    result = await method(view, request, *args, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 90, in post
    result = await self._flow_mgr.async_configure(flow_id, data)
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 89, in async_configure
    result = await self._async_handle_step(flow, cur_step["step_id"], user_input)
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 132, in _async_handle_step
    result: Dict = await getattr(flow, method)(user_input)
  File "/usr/src/homeassistant/homeassistant/components/tradfri/config_flow.py", line 55, in async_step_auth
    self.hass, host, user_input[KEY_SECURITY_CODE]
  File "/usr/src/homeassistant/homeassistant/components/tradfri/config_flow.py", line 164, in authenticate
    key = await api_factory.generate_psk(security_code)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 195, in generate_psk
    self._psk = await self.request(command)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 155, in request
    result = await self._execute(api_commands)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 146, in _execute
    _, res = await self._get_response(msg)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 105, in _get_response
    await self._reset_protocol(e)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 77, in _reset_protocol
    protocol = await self._get_protocol()
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 72, in _get_protocol
    return (await self._protocol)
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 93, in _get_response
    protocol = await self._get_protocol()
  File "/usr/local/lib/python3.7/site-packages/pytradfri/api/aiocoap_api.py", line 72, in _get_protocol
    return (await self._protocol)
  File "/usr/local/lib/python3.7/site-packages/aiocoap/protocol.py", line 528, in create_client_context
    self.transport_endpoints.append((yield from TransportEndpointUDP6.create_client_transport_endpoint(new_message_callback=self._dispatch_message, new_error_callback=self._dispatch_error, log=self.log, loop=loop, dump_to=dump_to)))
  File "/usr/local/lib/python3.7/site-packages/aiocoap/transports/udp6.py", line 191, in create_client_transport_endpoint
    sock = socket.socket(family=socket.AF_INET6, type=socket.SOCK_DGRAM)
  File "/usr/local/lib/python3.7/socket.py", line 151, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol

Additional information:
It makes no difference if using discovery or manual setup in configuration.yaml.
For testing I managed to get pytradfri directly setup inside the docker container of home-assistant. From there the commandline was able to connect to the Tradfri gateway and receive status information.

[probot-home-assistant[bot]]

Hey there @ggravlingen, mind taking a look at this issue as its been labeled with a integration (tradfri) you are listed as a codeowner for? Thanks!

[ggravlingen]

Looks like you’re running ipv6?

[mmmente]

It does look like that, but I am not. I figured out that UDP6 includes IPv4 and IPv6. Actually a file like udp4.py does not exist. Makes me clueless.

[ggravlingen]

Did it work prior to version 0.100?

[mmmente]

No, I only got the Tradfri gateway last week. I tried downgrading to something like 0.89, but that brought a lot of other issues up, as there is no downwards compatibility of the config.

[ggravlingen]

This sounds very related to your own environment so I’m not sure I can help. 😔

[mmmente]

What I find curious is, that it works outside of home-assistant. As said above: For testing I managed to get pytradfri directly setup inside the docker container of home-assistant. From there the commandline was able to connect to the Tradfri gateway and receive status information.

[catokolas]

try setting this in the running environment:

AIOCOAP_CLIENT_TRANSPORT=tinydtls
AIOCOAP_SERVER_TRANSPORT=tinydtls

[mmmente]

WOW! Yes, that solved it for me 👍 Thank you so much!

[catokolas]

great!

[msoderberg76]

try setting this in the running environment:

AIOCOAP_CLIENT_TRANSPORT=tinydtls
AIOCOAP_SERVER_TRANSPORT=tinydtls

Hi, noobie question I know.. But where do I put this settings? In which file and format?

[catokolas]

I'm not sure how you do it if you are running it in a docker container, maybe @mmmente can answer?
I'm running home assistant directly on a debian server and modified /etc/systemd/system/home-assistant.service:

[Unit]
Description=Home Assistant
After=network-online.target

[Service]
Type=simple
User=homeassistant
Environment=AIOCOAP_CLIENT_TRANSPORT=tinydtls
Environment=AIOCOAP_SERVER_TRANSPORT=tinydtls
ExecStart=/opt/homeassistant/bin/hass -c "/opt/homeassistant/.homeassistant"
Restart=on-failure
RestartSec=5s
...

then ran systemctl daemon-reload && systemctl restart home-assistant

[msoderberg76]

Thanks! I try that!

//Mårten

24 jan. 2020 kl. 12:03 skrev Cato Kolås [e-mail]:


I'm not sure how you do it if you are running it in a docker container, maybe @mmmente can answer?
I'm running home assistant directly on a server and modified /etc/systemd/system/home-assistant.service:

[Unit]
Description=Home Assistant
After=network-online.target

[Service]
Type=simple
User=homeassistant
Environment=AIOCOAP_CLIENT_TRANSPORT=tinydtls
Environment=AIOCOAP_SERVER_TRANSPORT=tinydtls
ExecStart=/opt/homeassistant/bin/hass -c "/opt/homeassistant/.homeassistant"
Restart=on-failure
RestartSec=5s
...

then ran systemctl daemon-reload && systemctl restart home-assistant

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[msoderberg76]

Unfortunately it still doesn’t work. Still get the unknown error when I enter the security code from Trådfri Gateway to Homeassistant...

On 24 Jan 2020, at 12:03, Cato Kolås [e-mail] wrote:

Environment=AIOCOAP_CLIENT_TRANSPORT=tinydtls
Environment=AIOCOAP_SERVER_TRANSPORT=tinydtls

[catokolas]

can you verify that env is set by running:
systemctl status home-assistant # find the PID
cat /proc/[PID]/environ # and look for AIOCOAP...

[mmmente]

I have in my docker compose file added a section like this

...  
homeassistant:
      container_name: home-assistant
      image: homeassistant/home-assistant:0.102.3
      environment:
        - AIOCOAP_CLIENT_TRANSPORT=tinydtls
        - AIOCOAP_SERVER_TRANSPORT=tinydtls
 ...

and that solved it for me immediately

[kodarn]

I'm running HomeAssistant using Docker, and came across this issue today. After finding the post above by @mmmente the issue was resolved. In summary:

HomeAssistant error

HomeAssistant error when trying to add the Tradfri gateway:

Version:

HomeAssistant version:

Fix

Fixed by updating the docker-compose.yaml file:

Restart

docker-compose stop
docker-compose start

Result

No problems adding the Tradfri Gateway security key

[msoderberg76]

Hi, I have walked through everything now I have set up the tinydtls settings in my service. If I check the PID I see the AIOCOAP. If I run the command python3 -i -m pytradfri IP and enter my security code I manage to run commands for my lightning. But on the webpage the error is the same when I try to enter the security code. I have home assistant installed in an Venv on my Ubuntu server. If I cannot get this to work now I'm losing my hair!!! Oh wait, that already happened... :-)

[catokolas]

hm, what version of HA are you running? And do any logfiles (like syslog, home-assistant.log) say anything related to this?

[msoderberg76]

Hi,

marten@marten-hass:/$ hass --version
0.103.6

Found this in the log
ile "/usr/local/lib/python3.7/site-packages/aiocoap/credentials.py", line 285, in credentials_from_request
raise CredentialsMissingError("No suitable credentials for %s" % uri)
aiocoap.credentials.CredentialsMissingError: No suitable credentials for coaps
So I have now tried to change the manifest.json in tradfri to user pytradfri 6.3.1 instead and that did the trick!

Thanks!!

On 23 Apr 2020, at 21:45, Cato Kolås [e-mail] wrote:

hm, what version of HA are you running? And do any logfiles (like syslog, home-assistant.log) say anything related to this?

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