installing syscall by a kernel module
September 29, 2005 05:03 PM
how do i install a NEW system call (syscall), properly, from within a loadable kernel module ?
I saw one SYSCALL_MODULE macro in OpenBSD systems.. which does the job.. but is there anything similar in linux ( 2.4.29 kernel, mandrake ).
Z
122
October 05, 2005 04:23 PM
i suggest looking into rootkits sources, that overwrite the interrups with lkms like adore.
but simple way of doing it is, adding new stuff into sys_call_table[]
but simple way of doing it is, adding new stuff into sys_call_table[]
October 06, 2005 01:41 PM
ya... well. Do i run a loop through the sys_call table (maybe bottom-up) to find out an empty slot or is there any builtin function to register myself with an empty slot in the table ?
Z
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