Fwd: CT firmware and linux kernel patches for OpenWRT( ar71xx - Tp-Link 1750AC )

s prasad sprasad.kandregula at gmail.com
Mon Aug 31 13:52:54 PDT 2015

Hi Sven,

Thank you for your patch.

I applied that patch and tried to test by executing sending deauth
command using aireplay-ng. However, I got following error.

root at OpenWrt:/# aireplay-ng -0 1 -a 10:C3:7B:DF:EA:54 -c 9C:F3:87:49:96:7e wlan0
[  286.183915] device wlan0 entered promiscuous mode
22:15:55  Waiting for beacon frame (BSSID: 10:C3:7B:DF:EA:54) on channel 36
[  286.369861] ------------[ cut here ]------------
[  286.374611] WARNING: CPU: 0 PID: 1150 at
[  286.393771] Modules linked in: pppoe ppp_async iptable_nat ath9k
pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4
ipt_REJECT ipt_MASQUERADE ath9k_common xt_time xt_tcpudp xt_state
xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack
xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_reject_ipv4
nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat nf_log_ipv4
nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_ftp
nf_conntrack iptable_raw iptable_mangle iptable_filter ip_tables
crc_ccitt ath9k_hw ath10k_pci ath10k_core ath mac80211 cfg80211 compat
ledtrig_usbdev ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common
ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables ipv6
arc4 crypto_blkcipher ohci_platform ohci_hcd ehci_platform ehci_hcd
gpio_button_hotplug usbcore nls_base usb_common
[  286.469918] CPU: 0 PID: 1150 Comm: aireplay-ng Not tainted 4.1.2 #6
[  286.476273] Stack : 803c42b2 00000037 00000000 00000001 80318d80
80371f03 878f5ba0 0000047e
          803c3510 00000001 00000000 00000000 871d0000 800a6564
00000003 8031e0f4
          00000e6f 00000001 8031c608 86623a84 871d0000 800a4b74
803c42b2 000000c8
          00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
          00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[  286.512635] Call Trace:
[  286.515127] [<80071be8>] show_stack+0x48/0x70
[  286.519554] [<8008188c>] warn_slowpath_common+0xa0/0xd0
[  286.524867] [<80081944>] warn_slowpath_null+0x18/0x24
[  286.530024] [<87204cec>] 0x87204cec
[  286.533568]
[  286.535076] ---[ end trace d3f6cfc1171daefd ]---

Please let me know if I need to do any.

I need to send De-authentication command in monitor mode.

Thanks and Regards,
S Prasad

---------- Forwarded message ----------
From: Sven Eckelmann <sven at open-mesh.com>
Date: Fri, Aug 28, 2015 at 8:48 AM
Subject: Re: CT firmware and linux kernel patches for OpenWRT( ar71xx
- Tp-Link 1750AC )
To: s prasad <sprasad.kandregula at gmail.com>

[mailing lists removed - see other mail. please continue discussion
 on mailing list]

On Wednesday 26 August 2015 18:59:51 s prasad wrote:
> Does anybody have patches for CT firmware testing using OpenWRT environment.
> I tried to create patch, however OpenWRT patches supporting only for
> kernel versions 3.18 and 4.1 at the same time CT Kernels supporting
> 3.17_dev, 4.0.4 and 4.2.x. Both are miss matching.
> Can somebody help me if they have patches or to create patches.

Attached is the patch with the changes for mac80211. You still have to
select the "Firmware from Candelatech" under ath10k. Don't select
"Firmware optimized for AP operation (v10.1 / API v2)". I know that this
selection should be done more cleanly but I only needed it for testing :)

Also an example patch for the mentioned iw hack is attached.

You just have to checkout openwrt r46435 (in git
113f685179b34015d615530575c73e61fc913039), apply these two patches,
select your device, enable ath10k, enable the Candelatech firmware and
build it.

Kind regards,

S Prasad Kandregula
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