dhcpcd-discuss

Wow, thanks for all the replies, but most of this is going straight over my
head :-)

Let me know if there's anything I can do to help test. I can confirm that
running dhclient does ensure that wwan0 gets an IP address, but I'd prefer
to be using dhcpcd for everything.

Jeremy

On 24 May 2018 at 22:05, Serge Schneider <serge@xxxxxxxxxxxxxxx> wrote:

>
>
> On Thu, May 24, 2018 at 10:50 AM, Roy Marples <roy@xxxxxxxxxxxx> wrote:
>
>> On 24/05/2018 10:37, Serge Schneider wrote:
>>
>>> Yes , we have the hook enabled. Is that not the recommended way to start
>>> wpa_supplicant when using dhcpcd?
>>>
>>
>> It's just not the default way.
>> dhcpcd should NOT make the assumption that just because the interface is
>> wireless AND wpa_supplicant exists AND wpa_supplicant.conf is configured
>> that IT is responsible for starting and stopping it.
>>
>> A good recent example is the recent introduction of IWD which competes
>> with wpa_supplicant. If both are installed and configured, we don't want
>> dhcpcd starting wpa_supplicant when it knows nothing about IWD - the user
>> needs to make the conscious choice here.
>>
>> IIRC, the original reason for adding this patch was that some wifi
>>> devices don't match "if_getssid(ifp) != -1", so " *ifp->name == 'w'" was
>>> added as a quick workaround.
>>>
>>
>> If the operation of getting the SSID returns -1 that means that there was
>> an error. Even if not associated and not instructed to associate, the call
>> will succeed. Every wireless card must support getting and setting SSID as
>> a minium and only wireless cards do this.
>>
>> Thus it follows that any fix should be at the kernel level and not in
>> dhcpcd. Unless of course it's a dhcpcd bug, but I don't recall any reported
>> issues here in years.
>>
>> On BSD at least, most wireless devices don't start with the letter w and
>> on Linux you can rename them anyway.
>>
>
> Thanks, Roy. That all makes sense. And yes it's a driver floating around
> on github that has never been upstreamed, possibly due to issues like this.
>
>
>> Roy
>>
>>
>