All of lore.kernel.org
 help / color / mirror / Atom feed
From: mike@flyn.org (W. Michael Petullo)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Keeping track of called syscalls in real-time
Date: Wed, 28 Jun 2017 20:49:59 -0400	[thread overview]
Message-ID: <20170629004959.GA2529@imp.flyn.org> (raw)
In-Reply-To: <50c1511b-dd32-b653-82bb-b17783f16dca@seds.nl>

> Whenever fopen("/etc/shadow", "r") is called, the tool would intercept
> it, run the verify() procedure, and return back to the syscall, allowing
> it to do it's job.

This sounds like an LSM, possibly with a component which communicates
with userspace, depending on how sophisticated "verify" needs to be.

We've also done some very early work in trying to do this type of thing
from a hypervisor. See:

	https://www.flyn.org/projects/VisorFlow/

-- 
Mike

:wq

  reply	other threads:[~2017-06-29  0:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-28 20:48 Keeping track of called syscalls in real-time Ben Mezger
2017-06-28 21:19 ` valdis.kletnieks at vt.edu
2017-06-28 22:06   ` Ben Mezger
2017-06-28 22:26     ` valdis.kletnieks at vt.edu
2017-06-28 23:16       ` Ben Mezger
2017-06-29  0:49         ` W. Michael Petullo [this message]
2017-06-29 13:45           ` Ben Mezger
2017-06-29  1:19         ` valdis.kletnieks at vt.edu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170629004959.GA2529@imp.flyn.org \
    --to=mike@flyn.org \
    --cc=kernelnewbies@lists.kernelnewbies.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.