This patch introduces memory limitation for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-udp_limit/include/net/udp.h
===
--- 2.6.23-udp_limit.orig
This patch introduces memory usage accounting for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-udp_limit/net/ipv4/ip_output.c
===
--- 2.6.23-udp_li
This patch introduces global variable for UDP memory accounting.
The unit is page.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-udp_limit/includ
This patch introduces sndbuf size check before
memory allcation for send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4
em is specified as 4096,
UDP memory limitaion will not work.
The deafult number of udp_mem is 4096.
Comment, review and test are welcome.
Thanks,
Satoshi Oshima
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More majordom
Hi Stephen,
> On Thu, 11 Oct 2007 21:51:14 +0900
> Satoshi OSHIMA <[EMAIL PROTECTED]> wrote:
>
>> Hi Stephen,
>>
>> Thank you for your comment.
>>
>>>>{
>>>> + .ctl_name = NET_UDP_MEM,
>
alue of udp_mem is strange,
I agree. I'll fix it.
How about this?
min=4096 (and turn off limitation)
udp_mem>4096 (and turn on limitation)
Satoshi Oshima
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Hi Evgeniy,
Thank you for your comment.
> Hi.
>
> On Sat, Oct 06, 2007 at 12:01:07AM +0900, Satoshi OSHIMA ([EMAIL PROTECTED])
> wrote:
>> --- 2.6.23-rc3-udp_limit.orig/net/ipv4/udp.c
>> +++ 2.6.23-rc3-udp_limit/net/ipv4/udp.c
>> @@ -113,6 +113,10 @@ DEFINE_SNM
This patch introduces memory usage accounting for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc8-udp_limit/net/ipv4/ip_output.c
===
--
This patch introduces memory limitation for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc9-udp_limit/include/net/udp.h
===
--- 2.6.23-rc9-ud
This patch introduces global variable for UDP memory accounting.
The unit is page.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc3-udp_limit/includ
This patch introduces sndbuf size check before
memory allcation for send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4
et me know, if you find the good way to solve
this problem.
Thanks,
Satoshi Oshima
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This patch introduces memory usage measurement for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc8-udp_limit/net/ipv4/ip_output.c
===
--
This patch introduces global variable for UDP memory accounting.
The unit is page.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc3-udp_limit/includ
This patch introduces sndbuf size check before
memory allcation for send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4
appreciate your comment/test/feedback.
Satoshi Oshima
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> On Fri, Sep 28, 2007 at 09:47:37PM -0700, David Miller wrote:
>> There are two things we (might) need to guard against, one local and
>> one remote.
>
> Right I was focusing on the local threat.
>
>> If you do a per-user limit, apache would basically just stop at that
>> redzone point. In some s
Herbert Xu wrote:
> On Fri, Sep 28, 2007 at 09:51:59PM -0700, David Miller wrote:
>> There is a per-socket send buffer limit, and there is a per-user open
>> file descriptor limit. Multiply the two to determine how much system
>> memory the user can consume using sockets.
>
> We do have these limi
Evgeniy Polyakov wrote:
> On Fri, Sep 28, 2007 at 10:41:31PM +0900, Satoshi OSHIMA
([EMAIL PROTECTED]) wrote:
>> This patch introduces memory usage measurement for UDP.
>>
>> These 3 points were updated.
>>
>> - UDP specific codes in IP layer were removed.
&
et is for 2.6.23-rc8.
I appreciate your comment/test/feedback.
Satoshi Oshima
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Hi,
Thank you for your comment.
Evgeniy Polyakov wrote:
> Hi.
>
> On Fri, Sep 21, 2007 at 09:18:07PM +0900, Satoshi OSHIMA
([EMAIL PROTECTED]) wrote:
>> This patch set try to introduce memory usage accounting for
>> UDP(currently ipv4 only).
>>
>> Currently, me
This patch introduces memory usage measurement for UDP.
These 3 points were updated.
- UDP specific codes in IP layer were removed.
- atomic_sub() in a loop was removed
- accounting during socket destruction
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki &
This patch introduces global variable for UDP memory accounting.
The unit is page.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc3-udp_limit/includ
This patch introduces sndbuf size check before
memory allcation for send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4
Hi,
Thank you for your comment.
Andi Kleen wrote:
> Satoshi OSHIMA <[EMAIL PROTECTED]> writes:
>
>> This patch introduces global variable for UDP memory accounting.
>> The unit is page.
>
> The global variable doesn't seem to be very MP scalable, especially
This patch introduces sndbuf size check before
memory allcation for send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4
This patch introduces memory usage measurement for UDP.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc7-udp_limit/net/ipv4/ip_output.c
===
--
This patch introduces global variable for UDP memory accounting.
The unit is page.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
Index: 2.6.23-rc3-udp_limit/includ
to add memory usage quota
for UDP to avoid unlimited memory consumption problem
under DDOS attack.
This patch set is for 2.6.23-rc7.
Unfortunately, I don't have any NIC with UFO.
So this patch set is not tested with UFO supported
device.
I appreciate your comment/test/feedback.
Satoshi O
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