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Message-ID: <2527124.XNMpLdSfeq@x2> Date: Mon, 20 Oct 2014 16:25:13 -0400 From: Steve Grubb <sgrubb@...hat.com> To: Richard Guy Briggs <rgb@...hat.com> Cc: linux-audit@...hat.com, linux-kernel@...r.kernel.org, eparis@...hat.com, aviro@...hat.com, pmoore@...hat.com Subject: Re: [PATCH V5 0/5] audit by executable name On Thursday, October 02, 2014 11:06:51 PM Richard Guy Briggs wrote: > This is a part of Peter Moody, my and Eric Paris' work to implement > audit by executable name. Does this patch set define an AUDIT_VERSION_SOMETHING and then set AUDIT_VERSION_LATEST to it? If not, I need one to tell if the kernel supports it when issuing commands. Also, if its conceivable that kernels may pick and choose what features could be backported to a curated kernel, should AUDIT_VERSION_ be a number that is incremented or a bit mask? -Steve > Please see the accompanying userspace patch: > https://www.redhat.com/archives/linux-audit/2014-May/msg00019.html > The userspace interface is not expected to change appreciably unless > something important has been overlooked. Setting and deleting rules works > as expected. > > If the path does not exist at rule creation time, it will be re-evaluated > every time there is a change to the parent directory at which point the > change in device and inode will be noted. > > > Here's a sample run: > > # /usr/local/sbin/auditctl -a always,exit -F dir=/tmp -F exe=/bin/touch -F > key=touch_tmp # /usr/local/sbin/ausearch --start recent -k touch_tmp > time->Mon Jun 30 14:15:06 2014 > type=CONFIG_CHANGE msg=audit(1404152106.683:149): auid=0 ses=1 > subj=unconfined_u :unconfined_r:auditctl_t:s0-s0:c0.c1023 op="add_rule" > key="touch_tmp" list=4 res =1 > > # /usr/local/sbin/auditctl -l > -a always,exit -S all -F dir=/tmp -F exe=/bin/touch -F key=touch_tmp > > # touch /tmp/test > > # /usr/local/sbin/ausearch --start recent -k touch_tmp > time->Wed Jul 2 12:18:47 2014 > type=UNKNOWN[1327] msg=audit(1404317927.319:132): > proctitle=746F756368002F746D702F74657374 type=PATH > msg=audit(1404317927.319:132): item=1 name="/tmp/test" inode=25997 > dev=00:20 mode=0100644 ouid=0 ogid=0 rdev=00:00 > obj=unconfined_u:object_r:user_tmp_t:s0 nametype=CREATE type=PATH > msg=audit(1404317927.319:132): item=0 name="/tmp/" inode=11144 dev=00:20 > mode=041777 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:tmp_t:s0 > nametype=PARENT type=CWD msg=audit(1404317927.319:132): cwd="/root" > type=SYSCALL msg=audit(1404317927.319:132): arch=c000003e syscall=2 > success=yes exit=3 a0=7ffffa403dd5 a1=941 a2=1b6 a3=34b65b2c6c items=2 > ppid=4321 pid=6436 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 > fsgid=0 tty=ttyS0 ses=1 comm="touch" exe="/usr/bin/touch" > subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key="touch_tmp" > > > Revision history: > v5: Revert patch "Let audit_free_rule() take care of calling > audit_remove_mark()." since it caused a group mark deadlock. > > v4: Re-order and squash down fixups > Fix audit_dup_exe() to copy pathname string before calling > audit_alloc_mark(). > > v3: Rationalize and rename some function names and clean up get/put and free > code. Rename several "watch" references to "mark". > Rename audit_remove_rule() to audit_remove_mark_rule(). > Let audit_free_rule() take care of calling audit_remove_mark(). > Put audit_alloc_mark() arguments in same order as watch, tree and inode. > Move the access to the entry for audit_match_signal() to the beginning of > the function in case the entry found is the same one passed in. This will > enable it to be used by audit_remove_mark_rule(). > https://www.redhat.com/archives/linux-audit/2014-July/msg00000.html > > v2: Misguided attempt to add in audit_exe similar to watches > https://www.redhat.com/archives/linux-audit/2014-June/msg00066.html > > v1.5: eparis' switch to fsnotify > https://www.redhat.com/archives/linux-audit/2014-May/msg00046.html > https://www.redhat.com/archives/linux-audit/2014-May/msg00066.html > > v1: Change to path interface instead of inode > https://www.redhat.com/archives/linux-audit/2014-May/msg00017.html > > v0: Peter Moodie's original patches > https://www.redhat.com/archives/linux-audit/2012-August/msg00033.html > > > Next step: > Get full-path notify working. > > > Eric Paris (3): > audit: implement audit by executable > audit: clean simple fsnotify implementation > audit: convert audit_exe to audit_fsnotify > > Richard Guy Briggs (2): > audit: avoid double copying the audit_exe path string > Revert "fixup! audit: clean simple fsnotify implementation" > > include/linux/audit.h | 1 + > include/uapi/linux/audit.h | 2 + > kernel/Makefile | 2 +- > kernel/audit.h | 39 +++++++ > kernel/audit_exe.c | 49 +++++++++ > kernel/audit_fsnotify.c | 237 > ++++++++++++++++++++++++++++++++++++++++++++ kernel/auditfilter.c | > 52 +++++++++- > kernel/auditsc.c | 16 +++ > 8 files changed, 395 insertions(+), 3 deletions(-) > create mode 100644 kernel/audit_exe.c > create mode 100644 kernel/audit_fsnotify.c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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