From 9304b46c912d65a103a68f093b456ba3c02dca3b Mon Sep 17 00:00:00 2001 From: Richard Guy Briggs Date: Wed, 11 Oct 2017 20:57:08 -0400 Subject: capabilities: use root_priveleged inline to clarify logic Introduce inline root_privileged() to make use of SECURE_NONROOT easier to read. Suggested-by: Serge Hallyn Signed-off-by: Richard Guy Briggs Reviewed-by: Serge Hallyn Acked-by: James Morris Acked-by: Kees Cook Okay-ished-by: Paul Moore Signed-off-by: James Morris --- security/commoncap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'security') diff --git a/security/commoncap.c b/security/commoncap.c index 13661d34f842..9b8a6e79d858 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -695,6 +695,8 @@ out: return rc; } +static inline bool root_privileged(void) { return !issecure(SECURE_NOROOT); } + /* * handle_privileged_root - Handle case of privileged root * @bprm: The execution parameters, including the proposed creds @@ -713,7 +715,7 @@ static void handle_privileged_root(struct linux_binprm *bprm, bool has_fcap, const struct cred *old = current_cred(); struct cred *new = bprm->cred; - if (issecure(SECURE_NOROOT)) + if (!root_privileged()) return; /* * If the legacy file capability is set, then don't set privs @@ -838,7 +840,7 @@ int cap_bprm_set_creds(struct linux_binprm *bprm) if (__cap_grew(effective, ambient, new)) { if (!__cap_full(effective, new) || !uid_eq(new->euid, root_uid) || !uid_eq(new->uid, root_uid) || - issecure(SECURE_NOROOT)) { + !root_privileged()) { ret = audit_log_bprm_fcaps(bprm, new, old); if (ret < 0) return ret; -- cgit