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[173.164.112.133]) by smtp.gmail.com with ESMTPSA id 3-v6sm683002pfq.10.2018.09.24.17.25.15 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 24 Sep 2018 17:25:16 -0700 (PDT) From: Kees Cook To: James Morris Cc: Kees Cook , Casey Schaufler , John Johansen , Tetsuo Handa , Paul Moore , Stephen Smalley , "Schaufler, Casey" , LSM , Jonathan Corbet , linux-doc@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH security-next v3 25/29] Yama: Initialize as ordered LSM Date: Mon, 24 Sep 2018 17:18:28 -0700 Message-Id: <20180925001832.18322-26-keescook@chromium.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180925001832.18322-1-keescook@chromium.org> References: <20180925001832.18322-1-keescook@chromium.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This converts Yama from being a direct "minor" LSM into an ordered LSM. Signed-off-by: Kees Cook --- include/linux/lsm_hooks.h | 5 ----- security/Kconfig | 2 +- security/security.c | 1 - security/yama/yama_lsm.c | 7 ++++++- 4 files changed, 7 insertions(+), 8 deletions(-) diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 9df08955f684..5be95c6155b4 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -2092,10 +2092,5 @@ static inline void security_delete_hooks(struct security_hook_list *hooks, #endif /* CONFIG_SECURITY_WRITABLE_HOOKS */ extern void __init capability_add_hooks(void); -#ifdef CONFIG_SECURITY_YAMA -extern void __init yama_add_hooks(void); -#else -static inline void __init yama_add_hooks(void) { } -#endif #endif /* ! __LINUX_LSM_HOOKS_H */ diff --git a/security/Kconfig b/security/Kconfig index e20c2a3143e7..e37de9a44747 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -293,7 +293,7 @@ config LSM_ENABLE config LSM_ORDER string "Default initialization order of builtin LSMs" - default "loadpin,integrity" + default "yama,loadpin,integrity" help A comma-separated list of LSMs, in initialization order. Any LSMs left off this list will be link-order initialized diff --git a/security/security.c b/security/security.c index cb25f321e044..c4ba5832ef2f 100644 --- a/security/security.c +++ b/security/security.c @@ -304,7 +304,6 @@ int __init security_init(void) * Load minor LSMs, with the capability module always first. */ capability_add_hooks(); - yama_add_hooks(); /* Load LSMs in specified order. */ prepare_lsm_order(); diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c index ffda91a4a1aa..f2b1f47f98e8 100644 --- a/security/yama/yama_lsm.c +++ b/security/yama/yama_lsm.c @@ -477,9 +477,14 @@ static void __init yama_init_sysctl(void) static inline void yama_init_sysctl(void) { } #endif /* CONFIG_SYSCTL */ -void __init yama_add_hooks(void) +static int __init yama_init(void) { pr_info("Yama: becoming mindful.\n"); security_add_hooks(yama_hooks, ARRAY_SIZE(yama_hooks), "yama"); yama_init_sysctl(); + return 0; } + +DEFINE_LSM(yama) + .init = yama_init, +END_LSM; -- 2.17.1