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SubjectRe: [PATCH v2 00/10] LSM: Module stacking in support of S.A.R.A and Landlock
Adding the SARA and LandLock authors for review & comment.

Salvatore & Mickaël: does this patchset meet your needs for merging to
mainline?



On Tue, 11 Sep 2018, Casey Schaufler wrote:

> LSM: Module stacking in support of S.A.R.A and Landlock
>
> v2: Reduce the patchset to what is required to support
> the proposed S.A.R.A. and LandLock security modules
>
> The S.A.R.A. security module is intended to be used
> in conjunction with other security modules. It requires
> state to be maintained for the credential, which
> in turn requires a mechanism for sharing the credential
> security blob. The module also requires mechanism for
> user space manipulation of the credential information,
> hence an additional subdirectory in /proc/.../attr.
>
> The LandLock security module provides user configurable
> policy in the secmark mechanism. It requires data in
> the credential, file and inode security blobs. For this
> to be used along side the existing "major" security
> modules mechanism for sharing these blobs is provided.
>
> A side effect of providing sharing of the crendential
> security blob is that the TOMOYO module can be used at
> the same time as the other "major" modules.
>
> The mechanism for configuring which security modules are
> enabled has to change when stacking in enabled. Any
> module that uses just the security blobs that are shared
> can be selected. Additionally, one other "major" module
> can be selected.
>
> The security module stacking issues around networking and
> IPC are not addressed here as they are beyond what is
> required for TOMOYO, S.A.R.A and LandLock.
>
> git://github.com/cschaufler/lsm-stacking.git#stacking-4.19-rc2-saralock
>
> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
> ---
> Documentation/admin-guide/LSM/index.rst | 23 ++-
> fs/proc/base.c | 64 ++++++-
> fs/proc/internal.h | 1 +
> include/linux/lsm_hooks.h | 20 ++-
> include/linux/security.h | 15 +-
> kernel/cred.c | 13 --
> security/Kconfig | 92 ++++++++++
> security/apparmor/domain.c | 2 +-
> security/apparmor/include/cred.h | 24 ++-
> security/apparmor/include/file.h | 9 +-
> security/apparmor/include/lib.h | 4 +
> security/apparmor/lsm.c | 53 ++++--
> security/apparmor/task.c | 6 +-
> security/security.c | 293 ++++++++++++++++++++++++++++++--
> security/selinux/hooks.c | 215 ++++++++---------------
> security/selinux/include/objsec.h | 37 +++-
> security/selinux/selinuxfs.c | 5 +-
> security/selinux/xfrm.c | 4 +-
> security/smack/smack.h | 42 ++++-
> security/smack/smack_access.c | 4 +-
> security/smack/smack_lsm.c | 283 +++++++++++-------------------
> security/smack/smackfs.c | 18 +-
> security/tomoyo/common.h | 31 +++-
> security/tomoyo/domain.c | 4 +-
> security/tomoyo/securityfs_if.c | 15 +-
> security/tomoyo/tomoyo.c | 57 +++++--
> 26 files changed, 899 insertions(+), 435 deletions(-)
>

--
James Morris
<jmorris@namei.org>
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