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AUSYSCALL:

AUSYSCALL:

Section: System Administration Utilities (8) Updated: Nov 2008
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NAME

ausyscall - a program that allows mapping syscall names and numbers  

SYNOPSIS

ausyscall [arch] name | number | --dump | --exact  

DESCRIPTION

ausyscall is a program that prints out the mapping from syscall name to number and reverse for the given arch. The arch can be anything returned by uname -m. If arch is not given, the program will take a guess based on the running image. You may give the syscall name or number and it will find the opposite. You can also dump the whole table with the --dump option. By default a syscall name lookup will be a substring match meaning that it will try to match all occurances of the given name with syscalls. So giving a name of chown will match both fchown and chown as any other syscall with chown in its name. If this behavior is not desired, pass the --exact flag and it will do an exact string match.

This program can be used to verify syscall numbers on a biarch platform for rule optimization. For example, suppose you had an auditctl rule:

-a always, exit -S open -F exit=-EPERM -k fail-open

If you wanted to verify that both 32 and 64 bit programs would be audited, run "ausyscall i386 open" and then "ausyscall x86_64 open". Look at the returned numbers. If they are different, you will have to write two auditctl rules to get complete coverage.

-a always,exit -F arch=b32 -S open -F exit=-EPERM -k fail-open
-a always,exit -F arch=b64 -S open -F exit=-EPERM -k fail-open
 

OPTIONS

--dump
Print all syscalls for the given arch
--exact
Instead of doing a partial word match, match the given syscall name exactly.

 

SEE ALSO

ausearch(8), auditctl(8).

 

AUTHOR

Steve Grubb


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR

This document was created by man2html, using the manual pages.
Time: 22:01:17 GMT, April 16, 2011