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| author | Matthew Garrett <matthewgarrett@google.com> | 2019-08-20 02:17:39 +0200 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2019-08-20 06:54:15 +0200 |
| commit | 000d388ed3bbed745f366ce71b2bb7c2ee70f449 (patch) | |
| tree | 8df5d266713aa79f5009a515ec5db597a61aba30 /include | |
| parent | security: Add a "locked down" LSM hook (diff) | |
| download | linux-000d388ed3bbed745f366ce71b2bb7c2ee70f449.tar.xz linux-000d388ed3bbed745f366ce71b2bb7c2ee70f449.zip | |
security: Add a static lockdown policy LSM
While existing LSMs can be extended to handle lockdown policy,
distributions generally want to be able to apply a straightforward
static policy. This patch adds a simple LSM that can be configured to
reject either integrity or all lockdown queries, and can be configured
at runtime (through securityfs), boot time (via a kernel parameter) or
build time (via a kconfig option). Based on initial code by David
Howells.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/security.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 04cf48fab15d..74787335d9ce 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -97,6 +97,9 @@ enum lsm_event { * potentially a moving target. It is easy to misuse this information * in a way that could break userspace. Please be careful not to do * so. + * + * If you add to this, remember to extend lockdown_reasons in + * security/lockdown/lockdown.c. */ enum lockdown_reason { LOCKDOWN_NONE, |