netdev - Re: Is this 32-bit NCM?y

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 4 Dec 2014 09:26:20 +0000
From:	Kevin Zhu <Mingying.Zhu@...iocodes.com>
To:	Bjørn Mork <bjorn@...k.no>
CC:	Enrico Mioso <mrkiko.rs@...il.com>,
	Eli Britstein <Eli.Britstein@...iocodes.com>,
	Alex Strizhevsky <alexxst@...il.com>,
	"Midge Shaojun Tan" <ShaojunMidge.Tan@...iocodes.com>,
	"youtux@...il.com" <youtux@...il.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Is this 32-bit NCM?y

I will find it out. And I don't have v3.16 and I'm not going to upgrade
my OS to that. Sorry. So I would just stick to v3.13. Anyway, that size
is wrong, it should be fixed.

Regards,
Kevin

On 12/04/2014 05:19 PM, Bjørn Mork wrote:
> Kevin Zhu <Mingying.Zhu@...iocodes.com> writes:
>
>> Guys,
>>
>> After rearranging the padding, putting NCM0 right after NTH, and disable
>> ARP (FLAG_NOARP) and handling the offset alignment issue, it seems it
>> begins to work, though there's still problem with DHCP.
> Great!  But it would be good to know if _one_ of these changes is enough
> to make it work.
>
>> The DHCP packet's size becomes a large one after the TX function, which
>> is 16384, the maximum.
> You can now (from v3.16) disable the padding by setting min_tx_pkt >= tx_max.
> Something like this should do for a simple test:
>
>   echo 16384 >/sys/class/net/wwan0/cdc_ncm/min_tx_pkt
>
>
> Bjørn
This email and any files transmitted with it are confidential material. They are intended solely for the use of the designated individual or entity to whom they are addressed. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, use, distribution or copying of this communication is strictly prohibited and may be unlawful.

If you have received this email in error please immediately notify the sender and delete or destroy any copy of this message