Hi Mahesh, Thank you for the patches. But now I am out of the makedumpfile devel and other OSS devels. The main maintainer of makedumpfile is Tachibana-san (tachibana at mxm.nes.nec.co.jp) and he will help you. Thanks Ken'ichi Ohmichi -- On Wed, 18 May 2011 01:29:06 +0530 Mahesh J Salgaonkar <mahesh at linux.vnet.ibm.com> wrote: > > Hi All, > > Please find the version 2 of makedumpfile enhancement patchset that introduces > a data filtering feature which enables makedumpfile to filter out desired kernel > symbol data and it's members from the specified VMCORE file. The data to be > filtered out is poisoned with character 'X' (58 in Hex). > > This feature will be very useful for the customers who wants to erase the > customer sensitive data like security keys and other confidential data, in > DUMPFILE before sending it to support team for analysis. > > This feature introduces a filter config file where, using filter commands, > user can specify desired kernel data symbols and it's members that need to be > filtered out while creating o/p DUMPFILE. The Syntax for filter commands are > provided in the makedumpfile.conf(8) man page. > > The first 4 patches prepares the base work for filtering framework. The > patches 5 and 6 implements the generic filtering framework to erase desired > kernel data. The last two patches implements inclusion of eraseinfo data into > o/p dumpfile (kdump as well as ELF). The eraseinfo data contains the > effective lines from configuration files. > > I have tested these patches on x86_64 and s390x architecture against RHEL6 GA > kernel. The feature supports filtering data from ELF as well as > kdump-compressed formatted dump. > > Change in v2: > - Changes in patch 5 and inclusion of new patches 7 & 8 > - Re-named filter.conf file to makedumpfile.conf and some cleanup work. > - Introduced last two patches that implements inclusion of eraseinfo data > into kdump compressed as well as ELF formatted dumpfile. > > Please review the patchset and let me know your comments. > > Thanks, > -Mahesh. > --- > > Mahesh Salgaonkar (8): > makedumpfile: Add '--config' option to specify filter config file. > makedumpfile: Apply relocation while loading module debuginfo. > makedumpfile: Load the module symbol data from vmcore. > makedumpfile: Introduce routines to get type name from debuginfo. > makedumpfile: Read and process filter commands from config file. > makedumpfile: Read and process 'for' command from config file. > makedumpfile: Add erased information in compressed kdump file > makedumpfile: Add erase information in ELF formatted dumpfile > > > IMPLEMENTATION | 6 > Makefile | 8 > diskdump_mod.h | 2 > makedumpfile.8 | 20 > makedumpfile.c | 2747 ++++++++++++++++++++++++++++++++++++++++++++++++--- > makedumpfile.conf | 149 +++ > makedumpfile.conf.8 | 419 ++++++++ > makedumpfile.h | 199 ++++ > 8 files changed, 3394 insertions(+), 156 deletions(-) > create mode 100644 makedumpfile.conf > create mode 100644 makedumpfile.conf.8 > > -- > Signature
