From: Kees Cook <keescook@chromium.org> To: James Morris <jmorris@namei.org> Cc: Kees Cook <keescook@chromium.org>, Casey Schaufler <casey@schaufler-ca.com>, John Johansen <john.johansen@canonical.com>, Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>, Paul Moore <paul@paul-moore.com>, Stephen Smalley <sds@tycho.nsa.gov>, "Schaufler, Casey" <casey.schaufler@intel.com>, LSM <linux-security-module@vger.kernel.org>, Jonathan Corbet <corbet@lwn.net>, linux-doc@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH security-next v3 27/29] capability: Initialize as LSM_ORDER_FIRST Date: Mon, 24 Sep 2018 17:18:30 -0700 [thread overview] Message-ID: <20180925001832.18322-28-keescook@chromium.org> (raw) In-Reply-To: <20180925001832.18322-1-keescook@chromium.org> This converts capabilities to use the new LSM_ORDER_FIRST position. Signed-off-by: Kees Cook <keescook@chromium.org> --- include/linux/lsm_hooks.h | 2 -- security/commoncap.c | 8 +++++++- security/security.c | 9 ++++----- 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index b38902ea0be5..950042fb2385 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -2098,6 +2098,4 @@ static inline void security_delete_hooks(struct security_hook_list *hooks, #define __lsm_ro_after_init __ro_after_init #endif /* CONFIG_SECURITY_WRITABLE_HOOKS */ -extern void __init capability_add_hooks(void); - #endif /* ! __LINUX_LSM_HOOKS_H */ diff --git a/security/commoncap.c b/security/commoncap.c index 2e489d6a3ac8..7a6abaec65de 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -1366,10 +1366,16 @@ struct security_hook_list capability_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(vm_enough_memory, cap_vm_enough_memory), }; -void __init capability_add_hooks(void) +static int __init capability_init(void) { security_add_hooks(capability_hooks, ARRAY_SIZE(capability_hooks), "capability"); + return 0; } +DEFINE_LSM(capability) + .order = LSM_ORDER_FIRST, + .init = capability_init, +END_LSM; + #endif /* CONFIG_SECURITY */ diff --git a/security/security.c b/security/security.c index 8b93afa75e3c..ade74b90b73c 100644 --- a/security/security.c +++ b/security/security.c @@ -62,6 +62,10 @@ static bool debug __initdata; static bool __init is_enabled(struct lsm_info *lsm) { + /* LSM_ORDER_FIRST is always enabled. */ + if (lsm->order == LSM_ORDER_FIRST) + return true; + if (WARN_ON(!lsm->enabled)) return false; @@ -314,11 +318,6 @@ int __init security_init(void) /* Figure out which LSMs are enabled and disabled. */ prepare_lsm_enable(); - /* - * Load minor LSMs, with the capability module always first. - */ - capability_add_hooks(); - /* Load LSMs in specified order. */ prepare_lsm_order(); ordered_lsm_init(); -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: keescook@chromium.org (Kees Cook) To: linux-security-module@vger.kernel.org Subject: [PATCH security-next v3 27/29] capability: Initialize as LSM_ORDER_FIRST Date: Mon, 24 Sep 2018 17:18:30 -0700 [thread overview] Message-ID: <20180925001832.18322-28-keescook@chromium.org> (raw) In-Reply-To: <20180925001832.18322-1-keescook@chromium.org> This converts capabilities to use the new LSM_ORDER_FIRST position. Signed-off-by: Kees Cook <keescook@chromium.org> --- include/linux/lsm_hooks.h | 2 -- security/commoncap.c | 8 +++++++- security/security.c | 9 ++++----- 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index b38902ea0be5..950042fb2385 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -2098,6 +2098,4 @@ static inline void security_delete_hooks(struct security_hook_list *hooks, #define __lsm_ro_after_init __ro_after_init #endif /* CONFIG_SECURITY_WRITABLE_HOOKS */ -extern void __init capability_add_hooks(void); - #endif /* ! __LINUX_LSM_HOOKS_H */ diff --git a/security/commoncap.c b/security/commoncap.c index 2e489d6a3ac8..7a6abaec65de 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -1366,10 +1366,16 @@ struct security_hook_list capability_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(vm_enough_memory, cap_vm_enough_memory), }; -void __init capability_add_hooks(void) +static int __init capability_init(void) { security_add_hooks(capability_hooks, ARRAY_SIZE(capability_hooks), "capability"); + return 0; } +DEFINE_LSM(capability) + .order = LSM_ORDER_FIRST, + .init = capability_init, +END_LSM; + #endif /* CONFIG_SECURITY */ diff --git a/security/security.c b/security/security.c index 8b93afa75e3c..ade74b90b73c 100644 --- a/security/security.c +++ b/security/security.c @@ -62,6 +62,10 @@ static bool debug __initdata; static bool __init is_enabled(struct lsm_info *lsm) { + /* LSM_ORDER_FIRST is always enabled. */ + if (lsm->order == LSM_ORDER_FIRST) + return true; + if (WARN_ON(!lsm->enabled)) return false; @@ -314,11 +318,6 @@ int __init security_init(void) /* Figure out which LSMs are enabled and disabled. */ prepare_lsm_enable(); - /* - * Load minor LSMs, with the capability module always first. - */ - capability_add_hooks(); - /* Load LSMs in specified order. */ prepare_lsm_order(); ordered_lsm_init(); -- 2.17.1
next prev parent reply other threads:[~2018-09-25 0:19 UTC|newest] Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-09-25 0:18 [PATCH security-next v3 00/29] LSM: Explict LSM ordering Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 01/29] LSM: Correctly announce start of LSM initialization Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 19:53 ` James Morris 2018-10-01 21:05 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 02/29] vmlinux.lds.h: Avoid copy/paste of security_init section Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 19:56 ` James Morris 2018-10-01 21:05 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 03/29] LSM: Rename .security_initcall section to .lsm_info Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 19:57 ` James Morris 2018-10-01 21:06 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 04/29] LSM: Remove initcall tracing Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-26 16:35 ` Steven Rostedt 2018-09-26 16:35 ` Steven Rostedt 2018-09-26 18:35 ` Kees Cook 2018-09-26 18:35 ` Kees Cook 2018-09-30 23:25 ` Steven Rostedt 2018-09-30 23:25 ` Steven Rostedt 2018-10-01 1:01 ` Kees Cook 2018-10-01 1:01 ` Kees Cook 2018-10-01 21:07 ` John Johansen 2018-10-01 21:23 ` Steven Rostedt 2018-10-01 22:38 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 05/29] LSM: Convert from initcall to struct lsm_info Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 19:59 ` James Morris 2018-10-01 21:08 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 06/29] vmlinux.lds.h: Move LSM_TABLE into INIT_DATA Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:10 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 07/29] LSM: Convert security_initcall() into DEFINE_LSM() Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:12 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 08/29] LSM: Record LSM name in struct lsm_info Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:13 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 09/29] LSM: Provide init debugging infrastructure Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:14 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 10/29] LSM: Don't ignore initialization failures Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:14 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 11/29] LSM: Introduce LSM_FLAG_LEGACY_MAJOR Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:15 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 12/29] LSM: Provide separate ordered initialization Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:17 ` John Johansen 2018-10-01 22:03 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 13/29] LoadPin: Rename "enable" to "enforce" Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:17 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 14/29] LSM: Plumb visibility into optional "enabled" state Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:18 ` John Johansen 2018-10-01 21:47 ` James Morris 2018-10-01 21:56 ` Kees Cook 2018-10-01 22:20 ` John Johansen 2018-10-01 22:29 ` Kees Cook 2018-10-01 22:53 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 15/29] LSM: Lift LSM selection out of individual LSMs Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:18 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 16/29] LSM: Prepare for arbitrary LSM enabling Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:22 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 17/29] LSM: Introduce CONFIG_LSM_ENABLE Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:34 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 18/29] LSM: Introduce lsm.enable= and lsm.disable= Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:46 ` John Johansen 2018-10-01 22:27 ` Kees Cook 2018-10-01 22:48 ` John Johansen 2018-10-01 23:30 ` Kees Cook 2018-10-01 23:38 ` Kees Cook 2018-10-01 23:57 ` John Johansen 2018-10-01 23:44 ` John Johansen 2018-10-01 23:49 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 19/29] LSM: Prepare for reorganizing "security=" logic Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-10-01 21:47 ` John Johansen 2018-09-25 0:18 ` [PATCH security-next v3 20/29] LSM: Refactor "security=" in terms of enable/disable Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 21/29] LSM: Build ordered list of ordered LSMs for init Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 22/29] LSM: Introduce CONFIG_LSM_ORDER Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 23/29] LSM: Introduce "lsm.order=" for boottime ordering Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 24/29] LoadPin: Initialize as ordered LSM Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 25/29] Yama: " Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 26/29] LSM: Introduce enum lsm_order Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` Kees Cook [this message] 2018-09-25 0:18 ` [PATCH security-next v3 27/29] capability: Initialize as LSM_ORDER_FIRST Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 28/29] LSM: Separate idea of "major" LSM from "exclusive" LSM Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-25 0:18 ` [PATCH security-next v3 29/29] LSM: Add all exclusive LSMs to ordered initialization Kees Cook 2018-09-25 0:18 ` Kees Cook 2018-09-28 15:55 ` [PATCH security-next v3 00/29] LSM: Explict LSM ordering Casey Schaufler 2018-09-28 15:55 ` Casey Schaufler 2018-09-28 20:01 ` Kees Cook 2018-09-28 20:01 ` Kees Cook 2018-09-28 20:25 ` Stephen Smalley 2018-09-28 20:25 ` Stephen Smalley 2018-09-28 20:33 ` Stephen Smalley 2018-09-28 20:33 ` Stephen Smalley 2018-09-28 20:54 ` Kees Cook 2018-09-28 20:54 ` Kees Cook 2018-09-29 10:48 ` Tetsuo Handa 2018-09-29 10:48 ` Tetsuo Handa 2018-09-29 18:18 ` Kees Cook 2018-09-29 18:18 ` Kees Cook 2018-09-30 2:36 ` Tetsuo Handa 2018-09-30 2:36 ` Tetsuo Handa 2018-09-30 16:57 ` Kees Cook 2018-09-30 16:57 ` Kees Cook 2018-09-29 18:19 ` John Johansen 2018-09-29 18:19 ` John Johansen
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