Fwd: RE: Fwd: Re: makedumpfile security key enhancement using SIAL
aravinda at linux.vnet.ibm.com
Tue Apr 3 07:42:17 EDT 2012
Could you please let us know by when you are planning to create the
project and associated git for SIAL? Right now we are extracting
libsial from the crash tar ball and using it.
On Wednesday 28 March 2012 10:30 PM, Aravinda Prasad wrote:
> Thanks Luc. We will let you know if in case we need any info/help.
> I am also forwarding this mail to kexec mailing list.
> -------- Original Message --------
> Subject: RE: Fwd: Re: makedumpfile security key enhancement using SIAL
> Date: Wed, 28 Mar 2012 07:07:49 -0400
> From: Luc Chouinard <LChouinard at s2sys.com>
> To: Aravinda Prasad <aravinda at linux.vnet.ibm.com>
> Libsial is meant to be a pluggable entity and as such should not require
> other pieces to be there ( crash or gdb).
> I want to create project and associated git for the library soon. For
> now you can extract libsial from the crash tar ball and manage any
> modifications using a simple patch mechanism. When the git is available,
> we can merge any fixes or enhancements you created for support of
> Makedumpfile and crash would then feed off of specific branches/versions
> of the git repository.
> If you have any suggestions or want to help in setting up a public git /
> project page for sial, please let me know.
>> -----Original Message-----
>> From: Aravinda Prasad [mailto:aravinda at linux.vnet.ibm.com]
>> Sent: Wednesday, March 28, 2012 1:31 AM
>> To: Luc Chouinard
>> Subject: Fwd: Fwd: Re: makedumpfile security key enhancement using SIAL
>> Forwarding to your s2sys email ID. Details in mail forward.
>> -------- Original Message --------
>> Subject: Fwd: Re: makedumpfile security key enhancement using SIAL
>> Date: Tue, 20 Mar 2012 17:28:21 +0530
>> From: Aravinda Prasad <aravinda at linux.vnet.ibm.com>
>> To: Luc Chouinard <lucchouina at yahoo.com>
>> CC: Atsushi Kumagai <kumagai-atsushi at mxc.nes.nec.co.jp>, Masaki Tachibana
>> <tachibana at mxm.nes.nec.co.jp>, Mahesh J Salgaonkar
>> <mahesh at linux.vnet.ibm.com>, Ananth N Mavinakayanahalli
>> <ananth at in.ibm.com>, Dave Anderson <anderson at redhat.com>
>> Hi Luc,
>> We are looking for utilising SIAL as a language construct for the
>> kernel data filtering from vmcore feature. The details of which are in
>> the mail
>> The proposed enhancement will require libsial.a and as SIAL is not
>> built/shipped, we are looking for possibilities on how libsial.a can
>> be made
>> available to makedumpfile. Please let us know your opinion on the same.
>> -------- Original Message --------
>> Subject: Re: makedumpfile security key enhancement using SIAL
>> Date: Tue, 13 Mar 2012 10:27:43 -0400 (EDT)
>> From: Dave Anderson <anderson at redhat.com>
>> To: Aravinda Prasad <aravinda at linux.vnet.ibm.com>
>> CC: Atsushi Kumagai <kumagai-atsushi at mxc.nes.nec.co.jp>, Masaki
>> Tachibana <tachibana at mxm.nes.nec.co.jp>, Ananth N
>> Mavinakayanahalli <ananth at in.ibm.com>, Mahesh J Salgaonkar
>> <mahesh at linux.vnet.ibm.com>
>> ----- Original Message -----
>> > Hi Dave,
>> > Last year, we worked on the makedumpfile security key filtering where
>> > we added support to filter out kernel data from vmcore. This year, we
>> > are working on enhancing the framework to provide more flexibility for
>> > the customers to specify rules to traverse and filter out kernel data
>> > - for which we are planning to use SIAL.
>> > We are looking into using SIAL as language construct to specify
>> > rules/commands to erase data in the image file. The makedumpfile would
>> > interpret the rules provided in SIAL macro using SIAL library (which
>> > could be dynamically loaded) and erase out suitable data in the vmcore.
>> > We are planning to reuse SIAL as it provides a C language like
>> > construct, which is flexible and powerful enough to specify rules to
>> > erase data in vmcore.
>> > As SIAL is not built and shipped along with crash, we are looking for
>> > possibilities on how SIAL can be leveraged by makedumpfile and would
>> > like to know your opinion.
>> Sorry but I cannot give you any help with SIAL. Luc Chouinard is the
>> of the SIAL extension module adaptation for the crash utility, and he
>> can answer
>> your questions w/respect to adapting it for makedumpfile.
>> And ultimately, that's a question for the makedumpfile maintainers.
More information about the kexec