On Mon, Jul 1, 2024 at 3:08 PM KeithG <ys3al35l@xxxxxxxxx> wrote:
>
> On Thu, Jun 27, 2024 at 9:46 AM Arend Van Spriel
> <arend.vanspriel@xxxxxxxxxxxx> wrote:
> >
> > On June 27, 2024 3:46:35 PM KeithG <ys3al35l@xxxxxxxxx> wrote:
> >
> > > On Thu, Jun 27, 2024 at 6:34 AM KeithG <ys3al35l@xxxxxxxxx> wrote:
> > >>
> > >> On Thu, Jun 27, 2024 at 12:01 AM Arend Van Spriel
> > >> <arend.vanspriel@xxxxxxxxxxxx> wrote:
> > >>>
> > >>> On June 27, 2024 12:47:02 AM KeithG <ys3al35l@xxxxxxxxx> wrote:
> > >>>
> > >>>> On Wed, Jun 26, 2024 at 7:30 AM Arend Van Spriel
> > >>>> <arend.vanspriel@xxxxxxxxxxxx> wrote:
> > >>>>>
> > >>>>> On June 26, 2024 2:05:07 PM KeithG <ys3al35l@xxxxxxxxx> wrote:
> > >>>>>
> > >>>>>> On Wed, Jun 26, 2024 at 2:48 AM Arend Van Spriel
> > >>>>>> <arend.vanspriel@xxxxxxxxxxxx> wrote:
> > >>>>>>>
> > >>>>>>> On June 21, 2024 2:24:19 PM KeithG <ys3al35l@xxxxxxxxx> wrote:
> > >>>>>>>
> > >>>>>>>> On Fri, Jun 21, 2024 at 4:09 AM Arend van Spriel
> > >>>>>>>> <arend.vanspriel@xxxxxxxxxxxx> wrote:
> > >>>>>>>>>
> > >>>>>>>>> + Jouni
> > >>>>>>>>>
> > >>>>>>>>> On 6/20/2024 8:25 PM, KeithG wrote:
> > >>>>>>>>>> 1718907734.308740: wlan0: WPA: AP group 0x10 network profile group
> > >>>>>>>>>> 0x18; available group 0x10
> > >>>>>>>>>> 1718907734.308748: wlan0: WPA: using GTK CCMP
> > >>>>>>>>>> 1718907734.308758: wlan0: WPA: AP pairwise 0x10 network profile
> > >>>>>>>>>> pairwise 0x10; available pairwise 0x10
> > >>>>>>>>>> 1718907734.308767: wlan0: WPA: using PTK CCMP
> > >>>>>>>>>> 1718907734.308772: wlan0: WPA: AP key_mgmt 0x400 network profile
> > >>>>>>>>>> key_mgmt 0x400; available key_mgmt 0x0
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> I suspect the message above indicates the problem as there is no
> > >>>>>>>>> available key_mgmt to select so looked it up in the code and here it is:
> > >>>>>>>>>
> > >>>>>>>>> sel = ie.key_mgmt & ssid->key_mgmt;
> > >>>>>>>>> #ifdef CONFIG_SAE
> > >>>>>>>>> if ((!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE) &&
> > >>>>>>>>> !(wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_SAE_OFFLOAD_STA)) ||
> > >>>>>>>>> wpas_is_sae_avoided(wpa_s, ssid, &ie))
> > >>>>>>>>> sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_SAE_EXT_KEY |
> > >>>>>>>>> WPA_KEY_MGMT_FT_SAE |
> > >>>>>>>>> WPA_KEY_MGMT_FT_SAE_EXT_KEY);
> > >>>>>>>>> #endif /* CONFIG_SAE */
> > >>>>>>>>> #ifdef CONFIG_IEEE80211R
> > >>>>>>>>> if (!(wpa_s->drv_flags & (WPA_DRIVER_FLAGS_SME |
> > >>>>>>>>> WPA_DRIVER_FLAGS_UPDATE_FT_IES)))
> > >>>>>>>>> sel &= ~WPA_KEY_MGMT_FT;
> > >>>>>>>>> #endif /* CONFIG_IEEE80211R */
> > >>>>>>>>> wpa_dbg(wpa_s, MSG_DEBUG,
> > >>>>>>>>> "WPA: AP key_mgmt 0x%x network profile key_mgmt 0x%x;
> > >>>>>>>>> available key_mgmt 0x%x",
> > >>>>>>>>> ie.key_mgmt, ssid->key_mgmt, sel);
> > >>>>>>>>>
> > >>>>>>>>> So 0x400 matches the expectation:
> > >>>>>>>>>
> > >>>>>>>>> #define WPA_KEY_MGMT_SAE BIT(10)
> > >>>>>>>>>
> > >>>>>>>>> You already confirmed that the driver reports SAE and SAE offload
> > >>>>>>>>> support. So it seems wpas_is_sae_avoided() must return true. That will
> > >>>>>>>>> check whether the AP and network profile are setup to MFP. This seems to
> > >>>>>>>>> be the fact as your hostapd.conf and wpa_supplicant.conf both have
> > >>>>>>>>> ieee80211w=2 defined. This function can only return true when
> > >>>>>>>>> is enabled in configuration file:
> > >>>>>>>>>
> > >>>>>>>>> # sae_check_mfp: Require PMF support to select SAE key_mgmt
> > >>>>>>>>> # 0 = Do not check PMF for SAE (default)
> > >>>>>>>>> # 1 = Limit SAE when PMF is not enabled
> > >>>>>>>>> #
> > >>>>>>>>> # When enabled SAE will not be selected if PMF will not be used
> > >>>>>>>>> # for the connection.
> > >>>>>>>>> # Scenarios where this check will limit SAE:
> > >>>>>>>>> # 1) ieee80211w=0 is set for the network
> > >>>>>>>>> # 2) The AP does not have PMF enabled.
> > >>>>>>>>> # 3) ieee80211w is unset, pmf=1 is enabled globally, and
> > >>>>>>>>> # the device does not support the BIP cipher.
> > >>>>>>>>> # Consider the configuration of global parameterss sae_check_mfp=1,
> > >>>>>>>>> pmf=1 and a
> > >>>>>>>>> # network configured with ieee80211w unset and key_mgmt=SAE WPA-PSK.
> > >>>>>>>>> # In the example WPA-PSK will be used if the device does not support
> > >>>>>>>>> # the BIP cipher or the AP has PMF disabled.
> > >>>>>>>>> # Limiting SAE with this check can avoid failing to associate to an AP
> > >>>>>>>>> # that is configured with sae_requires_mfp=1 if the device does
> > >>>>>>>>> # not support PMF due to lack of the BIP cipher.
> > >>>>>>>>>
> > >>>>>>>>> The default is not to check it and you wpa_supplicant.conf does not
> > >>>>>>>>> specify it.
> > >>>>>>>>>
> > >>>>>>>>> # cat /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> > >>>>>>>>> ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
> > >>>>>>>>> update_config=1
> > >>>>>>>>> network={
> > >>>>>>>>> ssid="deskSAE"
> > >>>>>>>>> sae_password="secret123"
> > >>>>>>>>> proto=RSN
> > >>>>>>>>> key_mgmt=SAE
> > >>>>>>>>> pairwise=CCMP
> > >>>>>>>>> ieee80211w=2
> > >>>>>>>>> }
> > >>>>>>>>>
> > >>>>>>>>> $ cat /etc/hostapd/hostapd.conf
> > >>>>>>>>> # interface and driver
> > >>>>>>>>> interface=ap0
> > >>>>>>>>> driver=nl80211
> > >>>>>>>>>
> > >>>>>>>>> # WIFI-Config
> > >>>>>>>>> ssid=deskSAE
> > >>>>>>>>> channel=1
> > >>>>>>>>> hw_mode=g
> > >>>>>>>>>
> > >>>>>>>>> wpa=2
> > >>>>>>>>> wpa_key_mgmt=SAE
> > >>>>>>>>> wpa_pairwise=CCMP
> > >>>>>>>>> sae_password=secret123
> > >>>>>>>>> sae_groups=19
> > >>>>>>>>> ieee80211w=2
> > >>>>>>>>> sae_pwe=0
> > >>>>>>>>>
> > >>>>>>>>> Regards,
> > >>>>>>>>> Arend
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>> 1718907734.308779: wlan0: WPA: Failed to select authenticated key
> > >>>>>>>>>> management type
> > >>>>>>>>>> 1718907734.308787: wlan0: WPA: Failed to set WPA key management and
> > >>>>>>>>>> encryption suites
> > >>>>>>>>
> > >>>>>>>> Arend,
> > >>>>>>>>
> > >>>>>>>> I find the wpa_supplicant docs really hard to understand. I have read
> > >>>>>>>> through your response a few times and am still a bit confused. Does
> > >>>>>>>> this have to do with a pure wpa3 versus a wpa2/3 AP?
> > >>>>>>>
> > >>>>>>> Correct. If I am not mistaken MFP aka PMF aka 802.11w is mandatory for WPA3.
> > >>>>>>>
> > >>>>>>>> I have tried editing my hostapd.conf and my wpa_supplicant.conf and
> > >>>>>>>> still cannot get a connection, so I must be doing something wrong.
> > >>>>>>>> I commented the ieee80211w line on both and it would not connect.
> > >>>>>>>> I tried changing the wpa_key_mgmt on both ends to be 'SAE WPA_PSK' and
> > >>>>>>>> it still would not connect.
> > >>>>>>>>
> > >>>>>>>> What *should* the configurations be in the hostapd.conf and
> > >>>>>>>> wpa_supplicant.conf to negotiate this as a pure wpa3 setup? What
> > >>>>>>>> should it be to be a wpa2/3 setup? My phone worked fine to connect
> > >>>>>>>> with the original hostapd setup, but I have no idea what it is doing
> > >>>>>>>
> > >>>>>>> As I mentioned in my previous email both config files listed above look
> > >>>>>>> okay to me (might be wrong though). The problem seems to be with
> > >>>>>>> wpas_is_sae_avoided(). For it to return true the config should have:
> > >>>>>>>
> > >>>>>>> sae_check_mfp=1
> > >>>>>>>
> > >>>>>>> But you don't have that and default is 0 so it should check for MFP. This
> > >>>>>>> is where my trail ends. To learn more I would add additional debug prints.
> > >>>>>>> Are you comfortable rebuilding wpa_supplicant from source?
> > >>>>>>>
> > >>>>>>> Regards,
> > >>>>>>> Arend
> > >>>>>>
> > >>>>>> Arend,
> > >>>>>>
> > >>>>>> Thanks for the reply. I could try to rebuild wpa_supplicant from
> > >>>>>> source. This is on RPi, so debian *.debs which are a pain, but I think
> > >>>>>> I can do it.
> > >>>>>>
> > >>>>>> Do I understand correctly that 'sae_check_mfp=1' is supposed to be in
> > >>>>>> the hostapd.conf and wpa_supplicant.conf? I can try that and see if
> > >>>>>> anything changes.
> > >>>>>
> > >>>>> Ok. We can try first to put following in wpa_supplicant.conf:
> > >>>>>
> > >>>>> sae_check_mfp=0
> > >>>>>
> > >>>>> Let me know if that makes any difference.
> > >>>>>
> > >>>>>> Why would I have to re-build wpa_supplicant?
> > >>>>>
> > >>>>> I would provide a patch with additional debug prints so I get better
> > >>>>> understanding what is going wrong. Would be great if you can apply that and
> > >>>>> rebuild.
> > >>>>>
> > >>>>> Regards,
> > >>>>> Arend
> > >>>> Arend,
> > >>>>
> > >>>> I was able to try it this afternoon.
> > >>>> My hostapd is still:
> > >>>> # interface and driver
> > >>>> interface=ap0
> > >>>> driver=nl80211
> > >>>>
> > >>>> # WIFI-Config
> > >>>> ssid=deskSAE
> > >>>> channel=1
> > >>>> hw_mode=g
> > >>>>
> > >>>> wpa=2
> > >>>> wpa_key_mgmt=SAE
> > >>>> wpa_pairwise=CCMP
> > >>>> sae_password=secret123
> > >>>> sae_groups=19
> > >>>> ieee80211w=2
> > >>>> sae_pwe=0
> > >>>>
> > >>>> and I can still connect from my phone to this AP.
> > >>>>
> > >>>> I tried this as my /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> > >>>> ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
> > >>>> update_config=1
> > >>>> network={
> > >>>> ssid="deskSAE"
> > >>>> sae_password="secret123"
> > >>>> proto=RSN
> > >>>> key_mgmt=SAE
> > >>>> pairwise=CCMP
> > >>>> ieee80211w=2
> > >>>> sae_check_mfp=1
> > >>>> }
> > >>>>
> > >>>> and when I try to connect, I get:
> > >>>> # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> > >>>> Successfully initialized wpa_supplicant
> > >>>> Line 10: unknown network field 'sae_check_mfp'.
> > >>>> Line 11: failed to parse network block.
> > >>>
> > >>> Right. The setting sae_check_mfp is a global setting like update_config. So
> > >>> it should be moved outside the network block.
> > >>>
> > >>> Regards,
> > >>> Arend
> > >> Arend,
> > >>
> > >> Thanks for the hand holding, I am out of my depth here!
> > >>
> > >> I tried this config and get a similar result.
> > >> ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
> > >> update_config=1
> > >> sae_check_mfp=1
> > >> network={
> > >> ssid="deskSAE"
> > >> sae_password="secret123"
> > >> proto=RSN
> > >> key_mgmt=SAE
> > >> pairwise=CCMP
> > >> ieee80211w=2
> > >> }
> > >> # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> > >> Successfully initialized wpa_supplicant
> > >> Line 3: unknown global field 'sae_check_mfp=1'.
> > >> Line 3: Invalid configuration line 'sae_check_mfp=1'.
> > >> Failed to read or parse configuration
> > >> '/etc/wpa_supplicant/wpa_supplicant-wlan0.conf'.
> > >> : CTRL-EVENT-DSCP-POLICY clear_all
> > >>
> > >> seems it doesn't recognize this parameter.
> > >>
> > >> Keith
> > >
> > > Replying to my own post.
> > > I re-built wpa_supplicant from the current git:
> > > # wpa_supplicant -v
> > > wpa_supplicant v2.11-devel-hostap_2_10-2215-gc9db4925f
> > > Copyright (c) 2003-2022, Jouni Malinen <j@xxxxx> and contributors
> > >
> > > It now seems to recognize the 'sae_check_mfp' parameter, but still
> > > does not connect:
> > > # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> > > Successfully initialized wpa_supplicant
> > > wlan0: Trying to associate with SSID 'deskSAE'
> > > wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
> > > wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> > > wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
> > > wlan0: Trying to associate with SSID 'deskSAE'
> > > wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
> > > wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> > > wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
> > > wlan0: Trying to associate with SSID 'deskSAE'
> > > wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
> > > wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> > > wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
> > > wlan0: Trying to associate with SSID 'deskSAE'
> > > wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
> > > wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> > > wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="deskSAE"
> > > auth_failures=1 duration=10 reason=CONN_FAILED
> > > wlan0: CTRL-EVENT-SSID-REENABLED id=0 ssid="deskSAE"
> > > wlan0: BSSID d8:3a:dd:60:a3:0c ignore list count incremented to 2,
> > > ignoring for 10 seconds
> > > wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
> > > wlan0: Trying to associate with SSID 'deskSAE'
> > > wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
> > > wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> > > wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="deskSAE"
> > > auth_failures=2 duration=20 reason=CONN_FAILED
> > > ^Cp2p-dev-wlan0: CTRL-EVENT-DSCP-POLICY clear_all
> > > p2p-dev-wlan0: CTRL-EVENT-DSCP-POLICY clear_all
> > > nl80211: deinit ifname=p2p-dev-wlan0 disabled_11b_rates=0
> > > p2p-dev-wlan0: CTRL-EVENT-TERMINATING
> > > wlan0: CTRL-EVENT-DSCP-POLICY clear_all
> > > wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
> > > wlan0: CTRL-EVENT-DSCP-POLICY clear_all
> > > nl80211: deinit ifname=wlan0 disabled_11b_rates=0
> > > wlan0: CTRL-EVENT-TERMINATING
> > >
> > > I tried setting the 'sae_check_mfp' to both 1 and 0 and still cannot
> > > connect with this 'current' version of wpa_supplicant.
> >
> > Right. So I should have asked about the wpa_supplicant from the start. Let
> > me work on patch for debugging this based on git version (SHA1: c9db4925f).
> >
> > Regards,
> > Arend
> >
> Arend,
>
> I ran across this note today and investigated it with the
> wpa_supplicant I am now using:
> https://github.com/raspberrypi/linux/pull/5945
>
> It still will not connect with this firmware
> # dmesg | grep brcmfm
> [ 1.995113] brcmfmac: F1 signature read @0x18000000=0x15264345
> [ 2.002317] brcmfmac: brcmf_fw_alloc_request: using
> brcm/brcmfmac43455-sdio for chip BCM4345/6
> [ 2.002497] usbcore: registered new interface driver brcmfmac
> [ 2.223405] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
> available (err=-2)
> [ 2.224010] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6
> wl0: Aug 29 2023 01:47:08 version 7.45.265 (28bca26 CY) FWID
> 01-b677b91b
> [ 109.454302] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
> [ 109.508572] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save disabled
> [ 113.543122] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail, reason -52
>
> this config:
> # cat /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
> update_config=1
> network={
> ssid="deskSAE"
> sae_password="secret123"
> proto=RSN
> key_mgmt=SAE
> ieee80211w=2
> }
>
> # wpa_supplicant -v
> wpa_supplicant v2.11-devel-hostap_2_10-2215-gc9db4925f
> Copyright (c) 2003-2022, Jouni Malinen <j@xxxxx> and contributors
>
> # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
> ...
> nl80211: kernel reports: Match already configured
> wlan0: Authentication with d8:3a:dd:60:a3:0c timed out.
> wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
> nl80211: send_event_marker failed: Source based routing not supported
> wlan0: CTRL-EVENT-DISCONNECTED bssid=d8:3a:dd:60:a3:0c reason=3
> locally_generated=1
> wlan0: BSSID d8:3a:dd:60:a3:0c ignore list count incremented to 2,
> ignoring for 10 seconds
> wlan0: CTRL-EVENT-DSCP-POLICY clear_all
> wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
> wlan0: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=US
> wlan0: Trying to associate with SSID 'deskSAE'
> ...
Take that and reverse it...
I was having a conflict and figured out that:
wpa_supplicant.service was running and failed to connect as it did not
have the proper config for teh SSID in question.
Once I stopped the service and tried to connect via cli, I was able to
get it to do so and was able to verify the connection worked:
# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
Successfully initialized wpa_supplicant
nl80211: kernel reports: Registration to specific type not supported
wlan0: Trying to associate with SSID 'deskSAE'
wlan0: PMKSA-CACHE-ADDED d8:3a:dd:60:a3:0c 0
wlan0: Authentication with d8:3a:dd:60:a3:0c timed out.
wlan0: Added BSSID d8:3a:dd:60:a3:0c into ignore list, ignoring for 10 seconds
nl80211: send_event_marker failed: Source based routing not supported
wlan0: CTRL-EVENT-DISCONNECTED bssid=d8:3a:dd:60:a3:0c reason=3
locally_generated=1
wlan0: BSSID d8:3a:dd:60:a3:0c ignore list count incremented to 2,
ignoring for 10 seconds
wlan0: CTRL-EVENT-DSCP-POLICY clear_all
wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
wlan0: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=US
wlan0: Removed BSSID d8:3a:dd:60:a3:0c from ignore list (clear)
wlan0: Trying to associate with SSID 'deskSAE'
wlan0: Associated with d8:3a:dd:60:a3:0c
wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
wlan0: WPA: Key negotiation completed with d8:3a:dd:60:a3:0c [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to d8:3a:dd:60:a3:0c
completed [id=0 id_str=]
ctrl c to break and restart
# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
Successfully initialized wpa_supplicant
nl80211: kernel reports: Registration to specific type not supported
# dhclient wlan0
# ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.5.177 netmask 255.255.255.0 broadcast 192.168.5.255
inet6 fe80::da3a:ddff:fed2:ae3c prefixlen 64 scopeid 0x20<link>
ether d8:3a:dd:d2:ae:3c txqueuelen 1000 (Ethernet)
RX packets 46 bytes 8973 (8.7 KiB)
RX errors 0 dropped 4 overruns 0 frame 0
TX packets 107 bytes 20686 (20.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
so, it appears that SAE does work, but you need to have a newer
cyfmac.bin file than what is shipped on the RPis.
This is what is reported, currently:
# dmesg | grep brcmfm
[ 1.995113] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 2.002317] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 2.002497] usbcore: registered new interface driver brcmfmac
[ 2.223405] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
available (err=-2)
[ 2.224010] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6
wl0: Aug 29 2023 01:47:08 version 7.45.265 (28bca26 CY) FWID
01-b677b91b
[ 109.454302] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[ 109.508572] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save disabled
I do get a ton of this in the log, though:
[ 113.543122] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail, reason -52
...
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