Setting 5GHz channels on Nexus6P

[Deltaaaaaaaaaa]

Thankyou for this amazing tool! I'm working on frame injection on 160MHz bandwidth using Nexus6P. When setting the 5GHz channels (using command "nexutil -k" )，it worked well on channel149, 153, 157, 161, 165. But when setting other 5GHz channels, an error occurs. The supported 5GHz channels does not support 160MHz bandwidth. To obtain 160MHz CSI measure, BCM4358 needs to be set to channels such as 64, 128 .etc which can't be set correctly.

1. Injection test using command "aireplay-ng -9" works normally on 2.4GHz channels and channel 149, 153, 157, 161, 165.

2. Here's the error:

   angler:/ # ifconfig wlan0 up                          
   angler:/ # nexutil -k149/80                           
   angler:/ # nexutil -k128/80                           
   __nex_driver_io: error ret=-1 errno=22
   angler:/ # nexutil -k128/160                          
   __nex_driver_io: error ret=-1 errno=22

3. Information returned by command "nexutil -V":

   
   platform     |                    firmware                                | vendorid | deviceid |
   ------------ | --------------------------------------------- | ---------- | --------- |
   Nexus 6P    | 7.112.300.14 (r707445) FWID 01-3242a45b |   0x14e4  |   0x43e9 |

radiorev	chipnum	chiprev	chippackage	corerev	boardid	boardvendor
0x2e2069	0x4358	0x3	0x2	0x30	0x7a1	0x14e4

boardrev	driverrev	ucoderev	bus	phytype	phyrev	anarev	nvramrev
P100	0x77012c0	0x3c3013d	0x0	0xb	0x11	0x0	0x7a1f2

4. What might be the problem? What can I do to fix it? By the way, the current firmware version is 7.112.300.14, is it the same thing with 7.112.300.14.sta? Could this be the problem?

Really appreciate it if someone help me fix this!  T-T 

[matthiasseemoo]

Hi JingBo,

the bcm4358 does not support 160 MHz channels. channels that are not working out of the box, first need to be activated in the regulations.c file: https://github.com/seemoo-lab/nexmon_csi/blob/master/src/regulations.c https://github.com/seemoo-lab/nexmon_csi/blob/master/src/regulations.c Currently, we did not yet release 160 MHz CSI extraction code.

Matthias

On 15. Aug 2020, at 18:35, JingBo Zhao notifications@github.com wrote:

Thankyou for this amazing tool! I'm working on frame injection on 160MHz bandwidth using Nexus6P. When setting the 5GHz channels (using command "nexutil -k" )，it worked well on channel149, 153, 157, 161, 165. But when setting other 5GHz channels, an error occurs. The supported 5GHz channels does not support 160MHz bandwidth. To obtain 160MHz CSI measure, BCM4358 needs to be set to channels such as 64, 128 .etc which can't be set correctly.

Injection test using command "aireplay-ng -9" works normally on 2.4GHz channels and channel 149, 153, 157, 161, 165.

Here's the error:

angler:/ # ifconfig wlan0 up angler:/ # nexutil -k149/80 angler:/ # nexutil -k128/80 nex_driver_io: error ret=-1 errno=22 angler:/ # nexutil -k128/160 nex_driver_io: error ret=-1 errno=22 Information returned by command "nexutil -V": platform	firmware	vendorid	deviceid
Nexus 6P	7.112.300.14 (r707445) FWID 01-3242a45b	0x14e4	0x43e9

radiorev	chipnum	chiprev	chippackage	corerev	boardid	boardvendor
0x2e2069	0x4358	0x3	0x2	0x30	0x7a1	0x14e4

boardrev	driverrev	ucoderev	bus	phytype	phyrev	anarev	nvramrev
P100	0x77012c0	0x3c3013d	0x0	0xb	0x11	0x0	0x7a1f2

What might be the problem? What can I do to fix it? By the way, the current firmware version is 7.112.300.14, is it the same thing with 7.112.300.14.sta? Could this be the problem? Really appreciate it if someone help me fix this! T-T

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[Deltaaaaaaaaaa]

Hi Mr. Matthias,

Thankyou for your instruction! Does bcm4366c0 on AC-86U support 160MHz channels? Is the 160 MHz CSI extraction released on other devices such as AC-86U? Is it possible to obtain 160MHz CSI measurement base on the current release?

JingBo …

Hi JingBo, the bcm4358 does not support 160 MHz channels. channels that are not working out of the box, first need to be activated in the regulations.c file: https://github.com/seemoo-lab/nexmon_csi/blob/master/src/regulations.c https://github.com/seemoo-lab/nexmon_csi/blob/master/src/regulations.c Currently, we did not yet release 160 MHz CSI extraction code. Matthias