Re: iwd not connecting on Raspberry Pi with Raspbian

[KeithG <ys3al35l@gmail.com>]

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You may need to remove wpa_supplicant. I have it removed from my images.

On Sat, Aug 29, 2020, 12:20 Patrick Häcker <pat_h@web.de> wrote:

> Hi Keith,
>
> thanks for answering, I really appreciate it.
>
> > I run iwd on RPi, but I am using Arch Linux. I've never tried it with
> > RaspiOS. Works pretty well, though I am having a re-connect issue that we
> > are trying to debug.
> Knowing that, it's likely, that it's a problem due to the Raspbian
> configuration or the specific iwd / network environment combination.
>
> > My guess is that you compiled the kernel to remove this message in the
> log:
> >
> > Aug 23 22:52:24 rune64 iwd[235]: No Diffie-Hellman support found, WPS
> will
> > not be available
> > Aug 23 22:52:24 rune64 iwd[235]: The following options are missing in the
> > kernel:
> > Aug 23 22:52:24 rune64 iwd[235]:         CONFIG_KEY_DH_OPERATIONS
> >
> > This is harmless and I have no problems connecting with this
> notification.
> > I think it means I cannot use WPS which I do not.
> Yes exactly, I had this message, and although I do not use WPS I thought
> it
> would be worth a try. But whether that option is included in the kernel or
> not
> does not make a difference.
>
> > Are you trying to connect using the iwctl commands?
> >
> > iwctl station wlan0 scan
> > iwctl station wlan0 get-networks
> > iwctl station wlan0 connect 'Network_Name"
> >
> > It should return with
> >
> > Type the network passphrase for "Network_Name" psk.
> > Passphrase: ********
> Yes, these were my first tests. However, few seconds after entering the
> Passphrase I always get a red "Operation failed".
> Therefore, I manually created correct psk files in /var/lib/iwd (I know
> they
> are correct, as they work on another computer in the same network).
> However
> that was not successful (but I used this configuration for creating the
> debug
> output, as it's simpler not having to type the password).
>
> > or are you using connman to manage iwd?
> No I am testing iwd directly. Currently I let systemd-networkd manage the
> network interface. But without being connected with iwd this obviously
> fails
> (however it works when using wpa_supplicant).
>
> > Do you have an /etc/iwd/main.conf? If so, what is in it?
> No, I am not using a config file.
>
> > I assume you have enabled and started iwd.
> In general yes, but for testing I sometimes disable it in systemd and
> start it
> manually. But neither mode works.
>
> I created an strace, but it didn't enlighten me. The bad file descriptor
> does
> not look good, but is probably due to the deauthentication event and not
> the
> other way round.
> > recvmsg(5, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=
> >
>  "D\0\0\0\20\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\3\0\0\0\3\20\0\0\0\0\0\0"...,
> >     iov_len=4096}], msg_iovlen=1, msg_control=[{cmsg_len=16,
> >     cmsg_level=SOL_NETLINK, cmsg_type=0x3}], msg_controllen=16,
> msg_flags=0},
> >     0) = 68
> > recvmsg(4, {msg_name=NULL, msg_namelen=0,  msg_iov=[{iov_base=
> >
> "0\0\0\0\27\0\0\0\0\0\0\0\0\0\0\0000\1\0\0\10\0\1\0\0\0\0\0\10\0\3\0"...,
> >     iov_len=8192}], msg_iovlen=1, msg_control=[{cmsg_len=16,
> >     cmsg_level=SOL_NETLINK, cmsg_type=0x3}], msg_controllen=16,
> msg_flags=0},
> > 0) = 48
> > write(2, "Received Deauthentication event,"..., 59) = 59
> > close(12)                               = 0
> > epoll_ctl(3, EPOLL_CTL_DEL, 12, NULL)   = -1 EBADF (Bad file descriptor)
>
> Any more ideas how to debug this, anyone?  Is it possible to run an Arch
> kernel on a Raspbian?
>
> Kind regards
> Patrick

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