Linux-Fsdevel Archive on lore.kernel.org
 help / color / Atom feed
From: Janne Karhunen <janne.karhunen@gmail.com>
To: Mimi Zohar <zohar@linux.ibm.com>
Cc: david.safford@gmail.com, linux-integrity@vger.kernel.org,
	linux-security-module <linux-security-module@vger.kernel.org>,
	Ken Goldman <kgold@linux.ibm.com>,
	"Wiseman, Monty (GE Global Research, US)" <monty.wiseman@ge.com>,
	Amir Goldstein <amir73il@gmail.com>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH v2] ima: export the measurement list when needed
Date: Thu, 13 Feb 2020 08:41:47 +0200
Message-ID: <CAE=NcrYwBZVT+xTn384K3fit6UFUES62zsibL=7A5C8_nYaq8A@mail.gmail.com> (raw)
In-Reply-To: <1581555796.8515.130.camel@linux.ibm.com>

On Thu, Feb 13, 2020 at 3:03 AM Mimi Zohar <zohar@linux.ibm.com> wrote:

> > This is a pretty important new feature.
> > A lot of people can't use IMA because of the memory issue.
> > Also, I really think we need to let administrators choose the tradeoffs
> > of keeping the list in memory, on a local file, or only on the
> > attestation server, as best fits their use cases.
>
> Dave, I understand that some use cases require the ability of
> truncating the measurement list.  We're discussing how to truncate the
> measurement list.  For example, in addition to the existing securityfs
> binary_runtime_measurements file, we could define a new securityfs
> file indicating the number of records to delete.

I don't have strong opinions either way, just let me know how to adapt
the patch and we will get it done asap. I'd prefer a solution where
the kernel can initiate the flush, but if not then not.

Thanks everyone for all the help.


--
Janne

  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200108111743.23393-1-janne.karhunen@gmail.com>
     [not found] ` <CAE=NcrZrbRinOAbB+k1rjhcae3nqfJ8snC_EnY8njMDioM7=vg@mail.gmail.com>
2020-02-06 14:13   ` Mimi Zohar
2020-02-10  8:04     ` Janne Karhunen
2020-02-10 15:26       ` Mimi Zohar
2020-02-10 18:18     ` david.safford
2020-02-10 20:24       ` Mimi Zohar
2020-02-11  8:06         ` Janne Karhunen
2020-02-11 16:10         ` david.safford
2020-02-11 23:10           ` Mimi Zohar
2020-02-12 21:08             ` david.safford
2020-02-13  1:03               ` Mimi Zohar
2020-02-13  6:41                 ` Janne Karhunen [this message]
2020-02-18 15:36                   ` Mimi Zohar

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='CAE=NcrYwBZVT+xTn384K3fit6UFUES62zsibL=7A5C8_nYaq8A@mail.gmail.com' \
    --to=janne.karhunen@gmail.com \
    --cc=amir73il@gmail.com \
    --cc=david.safford@gmail.com \
    --cc=kgold@linux.ibm.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-security-module@vger.kernel.org \
    --cc=monty.wiseman@ge.com \
    --cc=zohar@linux.ibm.com \
    /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

Linux-Fsdevel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-fsdevel/0 linux-fsdevel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-fsdevel linux-fsdevel/ https://lore.kernel.org/linux-fsdevel \
		linux-fsdevel@vger.kernel.org
	public-inbox-index linux-fsdevel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-fsdevel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git