On Tue, Aug 14, 2012 at 05:01:56PM +0530, Ajay Garg wrote: > Hi all. > > It is well known that the syscall-table had stopped being exported > from version 2.6 onwards. > > So, now as a developer, if I wish to hack into the syscall-table, and > change the syscall-function-pointers to my custom-function-pointers > (mainly for the reason of adding/preventing access to certain files, > via Kernel-Loadable-Modules), what is the recommended way? > > I have already tried extracting the address of the "sys_call_table" > from "System.Map"; however, I am still not able to replace the > function-pointers with mine. > Trying to do gives me page-faults, apparently meaning that the > syscall-table memory area is read-only. > > > > I will be grateful, if someone could point me to the recommended way > of doing this.
Have you looked into selinux [1] ? [1] http://selinuxproject.org/page/Main_Page -- balbi
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