[PATCH v30 02/12] landlock: Add ruleset and domain management
jannh at google.com
Tue Mar 23 00:13:27 UTC 2021
On Tue, Mar 16, 2021 at 9:43 PM Mickaël Salaün <mic at digikod.net> wrote:
> A Landlock ruleset is mainly a red-black tree with Landlock rules as
> nodes. This enables quick update and lookup to match a requested
> access, e.g. to a file. A ruleset is usable through a dedicated file
> descriptor (cf. following commit implementing syscalls) which enables a
> process to create and populate a ruleset with new rules.
> A domain is a ruleset tied to a set of processes. This group of rules
> defines the security policy enforced on these processes and their future
> children. A domain can transition to a new domain which is the
> intersection of all its constraints and those of a ruleset provided by
> the current process. This modification only impact the current process.
> This means that a process can only gain more constraints (i.e. lose
> accesses) over time.
> Cc: James Morris <jmorris at namei.org>
> Cc: Jann Horn <jannh at google.com>
> Cc: Kees Cook <keescook at chromium.org>
> Signed-off-by: Mickaël Salaün <mic at linux.microsoft.com>
> Acked-by: Serge Hallyn <serge at hallyn.com>
> Link: https://email@example.com
Reviewed-by: Jann Horn <jannh at google.com>
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