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authorKees Cook <keescook@chromium.org>2016-04-21 01:46:28 +0300
committerJames Morris <james.l.morris@oracle.com>2016-04-21 03:47:27 +0300
commit9b091556a073a9f5f93e2ad23d118f45c4796a84 (patch)
tree075fffff80b5caad9738f633c83333dea9e04efd /include/linux/lsm_hooks.h
parent1284ab5b2dcb927d38e4f3fbc2e307f3d1af9262 (diff)
downloadlinux-9b091556a073a9f5f93e2ad23d118f45c4796a84.tar.xz
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.h5
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 */