3:17 a.m.
I cannot get AP mode to function on my RPIs. If I try to do it by these
commands:
~# iwctl adapter phy0 show
Adapter: phy0
--------------------------------------------------------------------------------
Settable Property Value
--------------------------------------------------------------------------------
Name phy0
* Powered on
Vendor Broadcom Corp.
Model BCM43438 combo WLAN and Bluetooth Low Energy
(BLE)
SupportedModes ad-hoc station ap
~# iwctl device wlan0 show
Device: wlan0
--------------------------------------------------------------------------------
Settable Property Value
--------------------------------------------------------------------------------
Name wlan0
* Mode ap
* Powered on
Address b8:27:eb:52:cc:d0
Adapter phy0
~# iwctl ap wlan0 start "MyNet" "password"
On my Windows PC, I can select the SSID "MyNet" and attempt to connect but
every time, I get:
"Can't connect to this network"
From my android phone, I get a similar response: It tries to connect but
never negotiates a connection.
I have tried by running dnsmasq and then starting the iwd in AP mode (like
I do with hostapd), but still cannot connect.
Daniel on the connman list suggested I collect a log of the connection
attempt by running the commands suggested in the README:
https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/README
I tried before and got gibberish. I just did it again (by the book) and the
files are attached. This is on a RaspberryPi 3B+ running Arch Linux.
What is going wrong and how can I fix it? My goal is to ditch
hostapd/dnsmasq and use connman/iwd to allow the RPI to boot as an AP if it
does not have a 'known-network' that it can find.
Regards,
Keith
4:19 a.m.
Hi Keith,
On 6/3/2020 10:17 AM, KeithG wrote:
~# iwctl device wlan0 show
Device: wlan0
--------------------------------------------------------------------------------
Settable Property Value
--------------------------------------------------------------------------------
Name wlan0
* Mode ap
* Powered on
Address b8:27:eb:52:cc:d0
Adapter phy0
~# iwctl ap wlan0 start "MyNet" "password"
If the quotes are not part of the password, try to remove them.
Regards,
Tim
5:12 a.m.
Tim,
Good call, but same result.
It is interesting that in this mode that the interface has no IP address. I
would think that it would have something there:
# ip addr
...
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
fq_codel state DORMANT group default qlen 1000 link/ether b8:27:eb:52:cc:d0
brd ff:ff:ff:ff:ff:ff
When I use dnsmasq/hostapd, it lists its IP address before a connection
attempt is made.
On Wed, Jun 3, 2020 at 1:19 PM Kourt, Tim A <tim.a.kourt(a)linux.intel.com>
wrote:
Hi Keith,
On 6/3/2020 10:17 AM, KeithG wrote:
>
> ~# iwctl device wlan0 show
> Device: wlan0
>
--------------------------------------------------------------------------------
> Settable Property Value
>
--------------------------------------------------------------------------------
> Name wlan0
> * Mode ap
> * Powered on
> Address b8:27:eb:52:cc:d0
> Adapter phy0
>
> ~# iwctl ap wlan0 start "MyNet" "password"
>
If the quotes are not part of the password, try to remove them.
Regards,
Tim
6:30 p.m.
Hi Keith,
On Wed, 3 Jun 2020 at 19:17, KeithG <ys3al35l(a)gmail.com> wrote:
I cannot get AP mode to function on my RPIs. If I try to do it by
these commands:
Unfortunately IWD's AP mode is known to not work with the brcmfmac
driver used on most Pi models. It's a full-mac card so the eapol
frames are probably handled differently.
I don't know why the interface is not assigned its IP though.
Best regards
3:50 a.m.
Just to add a little to what Andrew wrote:
I can confirm that iwd's AP mode doesn't work with brcmfmac.
I used iwmon to dig a bit deeper into the difference in behaviour
between hostapd and iwd. The issue is that iwd uses
NL80211_CMD_REGISTER_FRAME to be notified of incoming management frames,
and this is what kicks off the 4-Way Handshake in ap.c. But brcmfmac
does not support this (except in P2P mode?). On the other hand, it seems
that hostapd reacts to NL80211_CMD_NEW_STATION (which iwd also receives,
but does nothing with) before starting the authentication. See the
attached iwmon logs for the difference.
I didn't look it much further, but I hope that helps.
Kind regards,
Alvin
On 6/4/20 10:30 AM, Andrew Zaborowski wrote:
Hi Keith,
On Wed, 3 Jun 2020 at 19:17, KeithG <ys3al35l(a)gmail.com> wrote:
> I cannot get AP mode to function on my RPIs. If I try to do it by these commands:
Unfortunately IWD's AP mode is known to not work with the brcmfmac
driver used on most Pi models. It's a full-mac card so the eapol
frames are probably handled differently.
I don't know why the interface is not assigned its IP though.
Best regards
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4 comments
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participants (4)
-
Alvin Šipraga -
Andrew Zaborowski -
KeithG -
Kourt, Tim A