[Cake] Cake with Deep Packet Inspection

Noah Causin n0manletter at gmail.com
Fri Nov 11 09:22:03 EST 2016


What I would try is deleting your build source folder and start from 
scratch.

Then edit source/package/kernel/kmod-sched-cake/Makefile

change the PKG_SOURCE_VERSION to 70169dba14daa6ef7907af9c1e922ef9f797993a

That's the latest stable version of cake.

https://github.com/dtaht/sch_cake/commit/70169dba14daa6ef7907af9c1e922ef9f797993a


On 11/11/2016 9:08 AM, Outback Dingo wrote:
> On Fri, Nov 11, 2016 at 9:04 PM, Noah Causin <n0manletter at gmail.com> wrote:
>> Do you build your firmware from the git repository?
>>
>>
> Yes it is built from a recent trunk, as of yesterday
>
>
>> On 11/10/2016 11:28 PM, Outback Dingo wrote:
>>> On Fri, Nov 11, 2016 at 10:52 AM, Outback Dingo <outbackdingo at gmail.com>
>>> wrote:
>>>> On Fri, Nov 11, 2016 at 10:42 AM, Noah Causin <n0manletter at gmail.com>
>>>> wrote:
>>>>> I took an extra router I had and bridged two ports on the router's
>>>>> switch,
>>>>> so they just pass traffic. (eth0.2 and eth0.3)
>>>>>
>>>>> Clients >-[Main Router] --[Extra Router]--[Cable-Modem]
>>>>>
>>>>> The extra router is passive.  It acts like it's part of the Ethernet
>>>>> cable
>>>>> between the main router and cable modem.  It does not interfere.
>>>>>
>>>>> The extra router needs these packages:
>>>>>
>>>>> kmod-ebtables, kmod-ebtables-ipv4, kmod-crypto-pcompress and the two
>>>>> packages compiled from the Makefile I showed below (iptables-mod-ndpi
>>>>> and
>>>>> iptables-mod-ndpi)
>>>>>
>>>>> I edited /etc/sysctl.conf and change the last two lines to this:
>>>>>
>>>>> net.bridge.bridge-nf-call-ip6tables=1
>>>>> net.bridge.bridge-nf-call-iptables=1
>>>>>
>>>>> This enables bridge firewalling, so the traffic between the two ports
>>>>> can be
>>>>> marked.
>>>>>
>>>>> I then added firewall rules to LuCIs custom firewall rules tab.
>>>>>
>>>>> Example Rules, modify classes as desired:
>>>>>
>>>>> iptables -t mangle -A FORWARD -m ndpi --steam -m mac ! --mac-source Your
>>>>> Main Router's Mac Address -j DSCP --set-dscp-class cs0
>>>>> iptables -t mangle -A FORWARD -m ndpi --youtube -m mac ! --mac-source
>>>>> Your
>>>>> Main Router's Mac Address -j DSCP --set-dscp-class cs2
>>>>>
>>>>> iptables -t mangle -A FORWARD -m ndpi --netflix -m mac ! --mac-source
>>>>> Your
>>>>> Main Router's Mac Address -j DSCP --set-dscp-class cs3
>>>>> iptables -t mangle -A FORWARD -m ndpi --skype -m mac ! --mac-source Your
>>>>> Main Router's Mac Address -j DSCP --set-dscp-class cs4
>>>>>
>>>>> Have your main router use some form of DiffServ for both upload and
>>>>> download
>>>>> on its WAN interface.  For upload traffic, you just need the two
>>>>> packages
>>>>> from the makefile to be installed on the main router and create firewall
>>>>> rules like this:
>>>>>
>>>>> iptables -t mangle -A FORWARD -o eth2 -m ndpi --netflix -j DSCP
>>>>> --set-dscp-class cs3
>>>>> iptables -t mangle -A FORWARD -o eth2 -m ndpi --skype -j DSCP
>>>>> --set-dscp-class cs4
>>>>>
>>>>> If you need help building a custom firmware image, just let me know.
>>>>>
>>>> Ok got it, its in-line.... right now im fighting the GFW of China
>>>> using shadowsocks and chinadns so im pretty customized already,
>>>> i was having issues with sqm and kernel segfaults on 4.4.30 ill build
>>>> a cake and DPI image and see how that goes, maybe Ill try this
>>>> after i deem sqm is stable with cake on this build. It a ZBT-WG3526
>>>> router... so its ralink based
>>> like i stated on LEDE major issues when sqm is enabled.... even with
>>> cake... is nobody else seeing these issues?
>>>
>>> [  569.020000]  1-...: (6 GPs behind) idle=236/0/0 softirq=50607/50613
>>> fqs=1
>>> [  569.020000]  (detected by 0, t=6002 jiffies, g=5799, c=5798, q=573)
>>> [  569.020000] Task dump for CPU 1:
>>> [  569.020000] swapper/1       R running      0     0      1 0x00100000
>>> [  569.020000] Stack : 00000000 00000001 00000015 00000000 00000000
>>> 00000001 8045a2a4 80410000
>>> [  569.020000]    8041275c 00000001 00000001 80412540 80412724
>>> 80410000 00000000 800132e8
>>> [  569.020000]    1100fc03 00000001 8fc60000 8fc61ec0 80410000
>>> 8005c870 1100fc03 00000001
>>> [  569.020000]    00000000 80410000 8045a2a4 8005c868 80410000
>>> 8001ade0 1100fc03 00000000
>>> [  569.020000]    00000004 804124a0 000000a0 8001ade8 fe9ff9db
>>> aefffbff fff77fe7 dfffffef
>>> [  569.020000]    ...
>>> [  569.020000] Call Trace:
>>> [  569.020000] [<8000bba8>] __schedule+0x574/0x758
>>> [  569.020000] [<800132e8>] r4k_wait_irqoff+0x0/0x20
>>> [  569.020000]
>>> [  569.020000] rcu_sched kthread starved for 6001 jiffies! g5799 c5798
>>> f0x0 s3 ->state=0x1
>>> [  629.130000] INFO: rcu_sched detected stalls on CPUs/tasks:
>>> [  629.130000]  1-...: (8 GPs behind) idle=756/0/0 softirq=50607/50613
>>> fqs=1
>>> [  629.130000]  (detected by 0, t=6002 jiffies, g=5801, c=5800, q=653)
>>> [  629.130000] Task dump for CPU 1:
>>> [  629.130000] swapper/1       R running      0     0      1 0x00100000
>>> [  629.130000] Stack : 00000000 bfd47c67 00000094 ffffffff 00000081
>>> 00000011 8045a2a4 80410000
>>> [  629.130000]    8041275c 00000001 00000001 80412540 80412724
>>> 80410000 000010d9 800132e8
>>> [  629.130000]    1100fc03 00000001 8fc60000 8fc61ec0 80410000
>>> 8005c870 1100fc03 00000001
>>> [  629.130000]    00000000 80410000 8045a2a4 8005c868 80410000
>>> 8001ade0 1100fc03 00000000
>>> [  629.130000]    00000004 804124a0 000000a0 8001ade8 fe9ff9db
>>> aefffbff fff77fe7 dfffffef
>>> [  629.130000]    ...
>>> [  629.130000] Call Trace:
>>> [  629.130000] [<8000bba8>] __schedule+0x574/0x758
>>> [  629.130000] [<800132e8>] r4k_wait_irqoff+0x0/0x20
>>> [  629.130000]
>>> [  629.130000] rcu_sched kthread starved for 6001 jiffies! g5801 c5800
>>> f0x0 s3 ->state=0x1
>>> [  692.940000] INFO: rcu_sched detected stalls on CPUs/tasks:
>>> [  692.940000]  1-...: (0 ticks this GP) idle=4c2/0/0
>>> softirq=50613/50613 fqs=0
>>> [  692.940000]  2-...: (25 GPs behind) idle=55a/0/0 softirq=28459/28460
>>> fqs=0
>>> [  692.940000]  3-...: (25 GPs behind) idle=5c2/0/0 softirq=30711/30982
>>> fqs=0
>>> [  692.940000]  (detected by 0, t=6002 jiffies, g=5824, c=5823, q=3190)
>>> [  692.940000] Task dump for CPU 1:
>>> [  692.940000] swapper/1       R running      0     0      1 0x00100000
>>> [  692.940000] Stack : 00000000 3646fb94 000000af ffffffff 0000008f
>>> d2f1a9fc 8045a2a4 80410000
>>> [  692.940000]    8041275c 00000001 00000001 80412540 80412724
>>> 80410000 000010d9 800132e8
>>> [  692.940000]    00000000 00000001 8fc60000 8fc61ec0 80410000
>>> 8005c870 1100fc03 00000001
>>> [  692.940000]    00000000 80410000 8045a2a4 8005c868 80410000
>>> 8001ade0 1100fc03 00000000
>>> [  692.940000]    00000004 804124a0 000000a0 8001ade8 fe9ff9db
>>> aefffbff fff77fe7 dfffffef
>>> [  692.940000]    ...
>>> [  692.940000] Call Trace:
>>> [  692.940000] [<8000bba8>] __schedule+0x574/0x758
>>> [  692.940000] [<800132e8>] r4k_wait_irqoff+0x0/0x20
>>> [  692.940000]
>>> [  692.940000] Task dump for CPU 2:
>>> [  692.940000] swapper/2       R running      0     0      1 0x00100000
>>> [  692.940000] Stack : 00000000 00000001 00000010 00000000 00000000
>>> 00010001 8045a2a4 80410000
>>> [  692.940000]    8041275c 00000001 00000000 804125e0 80412724
>>> 80410000 00000000 800132e8
>>> [  692.940000]    1100fc03 00000002 8fc62000 8fc63ec0 80410000
>>> 8005c870 1100fc03 00000002
>>> [  692.940000]    00000000 80410000 8045a2a4 8005c868 80410000
>>> 8001ade0 1100fc03 00000000
>>> [  692.940000]    00000004 804124a0 000000a0 8001ade8 fbffbfdf
>>> 7fff7b3b 7ffaeff8 67fbffff
>>> [  692.940000]    ...
>>> [  692.940000] Call Trace:
>>> [  692.940000] [<8000bba8>] __schedule+0x574/0x758
>>> [  692.940000] [<800132e8>] r4k_wait_irqoff+0x0/0x20
>>> [  692.940000]
>>> [  692.940000] Task dump for CPU 3:
>>> [  692.940000] swapper/3       R running      0     0      1 0x00100000
>>> [  692.940000] Stack : 00000000 a69c5765 000000a3 ffffffff 0000008f
>>> 00000020 8045a2a4 80410000
>>> [  692.940000]    8041275c 00000001 00000001 80412680 80412724
>>> 80410000 000010d9 800132e8
>>> [  692.940000]    1100fc03 00000003 8fc64000 8fc65ec0 80410000
>>> 8005c870 1100fc03 00000003
>>> [  692.940000]    00000000 80410000 8045a2a4 8005c868 80410000
>>> 8001ade0 1100fc03 00000000
>>> [  692.940000]    00000004 804124a0 000000a0 8001ade8 fefffbdb
>>> aefffbfb fff77fe7 dfffffef
>>> [  692.940000]    ...
>>> [  692.940000] Call Trace:
>>> [  692.940000] [<8000bba8>] __schedule+0x574/0x758
>>> [  692.940000] [<800132e8>] r4k_wait_irqoff+0x0/0x20
>>> [  692.940000]
>>> [  692.940000] rcu_sched kthread starved for 6002 jiffies! g5824 c5823
>>> f0x0 s3 ->state=0x1
>>> root at lede:~# packet_write_wait: Connection to 192.168.20.1 port 22: Broken
>>> pipe
>>>
>>>
>>>>> On 11/10/2016 9:06 PM, Outback Dingo wrote:
>>>>>
>>>>> On Fri, Nov 11, 2016 at 9:55 AM, Noah Causin <n0manletter at gmail.com>
>>>>> wrote:
>>>>>
>>>>> I finally got my project working.
>>>>>
>>>>> I integrated the NDPI Deep Packet Inspection engine into my LEDE build,
>>>>> so I
>>>>> could prioritize applications using Cake.
>>>>>
>>>>> http://www.ntop.org/products/deep-packet-inspection/ndpi/
>>>>>
>>>>> NDPI integrates into IPTables, which allows me to DSCP mark packets.
>>>>> Cake
>>>>> reads the DiffServ markings and puts the traffic into appropriate
>>>>> classes.
>>>>>
>>>>> I found a Makefile which successfully compiles:
>>>>>
>>>>> https://github.com/981213/lede_src/blob/0d344bc2958838dcbc547a8f0a3d8842e6f6d2f8/package/my_package/ndpi-netfilter/Makefile
>>>>>
>>>>> The system works very well.  Steam traffic is deprioritized to allow
>>>>> applications like YouTube, Netflix, and Skype to receive higher amounts
>>>>> of
>>>>> the available bandwidth.
>>>>>
>>>>> What I do for ingress is bridge two ports on an extra router, enable
>>>>> bridge
>>>>> firewalling, and create IPTables rules to mark downstream packets.  The
>>>>> router I use is a D-Link DGL-5500, which is comparable to an Archer C7.
>>>>>
>>>>> IPv6 support is not available in this netfilter module, but the IPv4
>>>>> support
>>>>> is great.
>>>>>
>>>>> Noah Causin
>>>>>
>>>>> very nice.... however, can you describe a bit better how you
>>>>> configured for ingress ? a second router?  configuration file ? your
>>>>> high level description seems a bit confusing to me
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Cake mailing list
>>>>> Cake at lists.bufferbloat.net
>>>>> https://lists.bufferbloat.net/listinfo/cake
>>>>>
>>>>>



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