ausyscall

AUSYSCALL:(8)           System Administration Utilities          AUSYSCALL:(8)



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 occurrences 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

       For more information about a specific syscall, use the man program and
       pass the number 2 as an argument to make sure that you get the syscall
       information rather than a shell script program or glibc function call
       of the same name. For example, if you wanted to learn about the open
       syscall, type: man 2 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



Red Hat                            Nov 2008                      AUSYSCALL:(8)