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    SubjectRe: [dm-devel] [RFC PATCH v5 00/11] Integrity Policy Enforcement LSM (IPE)
    On Sat, 8 Aug 2020, Chuck Lever wrote:

    > My interest is in code integrity enforcement for executables stored
    > in NFS files.
    >
    > My struggle with IPE is that due to its dependence on dm-verity, it
    > does not seem to able to protect content that is stored separately
    > from its execution environment and accessed via a file access
    > protocol (FUSE, SMB, NFS, etc).

    It's not dependent on DM-Verity, that's just one possible integrity
    verification mechanism, and one of two supported in this initial
    version. The other is 'boot_verified' for a verified or otherwise trusted
    rootfs. Future versions will support FS-Verity, at least.

    IPE was designed to be extensible in this way, with a strong separation of
    mechanism and policy.

    Whatever is implemented for NFS should be able to plug in to IPE pretty
    easily.


    --
    James Morris
    <jmorris@namei.org>

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