Re: [PATCH 0/2] riscv: add audit support
On Tue, Nov 6, 2018 at 10:25 PM David Abdurachmanov
<david.abdurachmanov(a)gmail.com> wrote:
On Tue, Nov 6, 2018 at 9:06 PM Paul Moore <paul(a)paul-moore.com> wrote:
>
> On Mon, Oct 29, 2018 at 6:49 AM David Abdurachmanov
> <david.abdurachmanov(a)gmail.com> wrote:
> > This patchset adds system call audit support on riscv (riscv32 &
> > riscv64).
> >
> > The pachset was prepared on top of v4.19 tag.
> >
> > audit-userspace changes were submitted. See:
> > https://github.com/linux-audit/audit-userspace/pull/73
> >
> > Tested the following manually:
> > - auditctl (checked several different example rules from internet)
> > - aulast
> > - aulastlog
> > - ausearch
> > - ausyscall
> > - aureport
> > - autrace (compared some syscalls to strace: order and return
> > value/input arguments seem to be correct)
> > - /proc/self/loginuid (required by DNF [package manager])
> >
> > I looked into audit-testsuite and with some adjustments results are:
> >
> > Failed 4/14 test programs. 19/88 subtests failed.
>
> I realize that the test suite failures are likely not due to your
> code, but rather shortcomings in the test suite itself, but I think it
> is important to resolve these problems before we commit the kernel
> changes.
I did some extra work this evening (well, after midnight) and I am passing
all bits I would expect to pass.
Test Summary Report
-------------------
syscall_socketcall/test (Wstat: 0 Tests: 3 Failed: 3)
Failed tests: 1-3
Files=14, Tests=88, 107 wallclock secs ( 1.07 usr 0.38 sys + 58.77
cusr 19.32 csys = 79.54 CPU)
Result: FAIL
Failed 1/14 test programs. 3/88 subtests failed.
The only failing test now is syscall_socketcall, which is not supported on
riscv and others.
From man page:
On a some architectures-for example, x86-64 and ARM—there is no
socketcall() system call; instead socket(2), accept(2), bind(2), and
so on really are implemented as separate system calls.
Then I redone syscall_socketcall test to fit new 64-bit arches. It still
mostly checks the same thing, but uses different syscall. Instead of
socketcall(SYS_CONNECT, ..) we check for connect(..). This will not
generate SOCKETCALL record, thus instead check for SYSCALL
record where syscall=connect.
All is here: https://github.com/davidlt/audit-testsuite/commits/riscv64
With that:
Running as user root
with context unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
on system Fedora
exec_execve/test ......... ok
exec_name/test ........... ok
file_create/test ......... ok
file_delete/test ......... ok
file_rename/test ......... ok
filter_exclude/test ...... ok
filter_sessionid/test .... ok
login_tty/test ........... ok
lost_reset/test .......... ok
netfilter_pkt/test ....... ok
syscalls_file/test ....... ok
syscall_module/test ...... ok
syscall_socketcall/test .. ok
user_msg/test ............ ok
All tests successful.
Files=14, Tests=88, 123 wallclock secs ( 1.26 usr 0.59 sys + 70.85
cusr 22.60 csys = 95.30 CPU)
Result: PASS
Same audit kernel patch and libaudit, nothing changed here.
Hopefully this allows to move forward as I would love to have
audit & seccomp in the next kernel version (and thus Fedora).
Thanks,
david