linux-kernel - Re: [PATCH v3 2/5] LSM: Replace context+len with lsm

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Message-ID: <ZyQRgL_jWdvKgRl-@calendula>
Date: Fri, 1 Nov 2024 00:23:44 +0100
From: Pablo Neira Ayuso <pablo@...filter.org>
To: Paul Moore <paul@...l-moore.com>
Cc: Casey Schaufler <casey@...aufler-ca.com>,
	linux-security-module@...r.kernel.org, jmorris@...ei.org,
	serge@...lyn.com, keescook@...omium.org,
	john.johansen@...onical.com, penguin-kernel@...ove.sakura.ne.jp,
	stephen.smalley.work@...il.com, linux-kernel@...r.kernel.org,
	selinux@...r.kernel.org, mic@...ikod.net, netdev@...r.kernel.org,
	audit@...r.kernel.org, netfilter-devel@...r.kernel.org,
	Todd Kjos <tkjos@...gle.com>
Subject: Re: [PATCH v3 2/5] LSM: Replace context+len with lsm_context

On Fri, Nov 01, 2024 at 12:15:16AM +0100, Pablo Neira Ayuso wrote:
> Hi Paul,
> 
> This patch breaks nf_conntrack_netlink, Casey mentioned that he will
> post another series.

Please, see:

https://lore.kernel.org/netfilter-devel/ZxpxZuErvXSLApsf@calendula/

> On Thu, Oct 31, 2024 at 06:53:38PM -0400, Paul Moore wrote:
> > On Oct 23, 2024 Casey Schaufler <casey@...aufler-ca.com> wrote:
> > > 
> > > Replace the (secctx,seclen) pointer pair with a single
> > > lsm_context pointer to allow return of the LSM identifier
> > > along with the context and context length. This allows
> > > security_release_secctx() to know how to release the
> > > context. Callers have been modified to use or save the
> > > returned data from the new structure.
> > > 
> > > security_secid_to_secctx() and security_lsmproc_to_secctx()
> > > will now return the length value on success instead of 0.
> > > 
> > > Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
> > > Cc: netdev@...r.kernel.org
> > > Cc: audit@...r.kernel.org
> > > Cc: netfilter-devel@...r.kernel.org
> > > Cc: Todd Kjos <tkjos@...gle.com>
> > > ---
> > >  drivers/android/binder.c                |  5 ++-
> > >  include/linux/lsm_hook_defs.h           |  5 ++-
> > >  include/linux/security.h                |  9 +++---
> > >  include/net/scm.h                       |  5 ++-
> > >  kernel/audit.c                          |  9 +++---
> > >  kernel/auditsc.c                        | 16 ++++------
> > >  net/ipv4/ip_sockglue.c                  |  4 +--
> > >  net/netfilter/nf_conntrack_netlink.c    |  8 ++---
> > >  net/netfilter/nf_conntrack_standalone.c |  4 +--
> > >  net/netfilter/nfnetlink_queue.c         | 27 +++++++---------
> > >  net/netlabel/netlabel_unlabeled.c       | 14 +++------
> > >  net/netlabel/netlabel_user.c            |  3 +-
> > >  security/apparmor/include/secid.h       |  5 ++-
> > >  security/apparmor/secid.c               | 26 +++++++--------
> > >  security/security.c                     | 34 +++++++++-----------
> > >  security/selinux/hooks.c                | 23 +++++++++++---
> > >  security/smack/smack_lsm.c              | 42 +++++++++++++++----------
> > >  17 files changed, 118 insertions(+), 121 deletions(-)
> > 
> > See my note on patch 1/5, merging into lsm/dev.
>