diff options
| author | Kees Cook <keescook@chromium.org> | 2016-04-20 15:46:28 -0700 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2016-04-21 10:47:27 +1000 |
| commit | 9b091556a073a9f5f93e2ad23d118f45c4796a84 (patch) | |
| tree | 075fffff80b5caad9738f633c83333dea9e04efd /include/linux/lsm_hooks.h | |
| parent | 1284ab5b2dcb927d38e4f3fbc2e307f3d1af9262 (diff) | |
LSM: LoadPin for kernel file loading restrictions
This LSM enforces that kernel-loaded files (modules, firmware, etc)
must all come from the same filesystem, with the expectation that
such a filesystem is backed by a read-only device such as dm-verity
or CDROM. This allows systems that have a verified and/or unchangeable
filesystem to enforce module and firmware loading restrictions without
needing to sign the files individually.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'include/linux/lsm_hooks.h')
| -rw-r--r-- | include/linux/lsm_hooks.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index ae2537886177..6e466fc0666c 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1892,5 +1892,10 @@ extern void __init yama_add_hooks(void); #else static inline void __init yama_add_hooks(void) { } #endif +#ifdef CONFIG_SECURITY_LOADPIN +void __init loadpin_add_hooks(void); +#else +static inline void loadpin_add_hooks(void) { }; +#endif #endif /* ! __LINUX_LSM_HOOKS_H */ |