All of lore.kernel.org
 help / color / mirror / Atom feed
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 14/29] LSM: Plumb visibility into optional "enabled" state
Date: Mon, 24 Sep 2018 17:18:17 -0700	[thread overview]
Message-ID: <20180925001832.18322-15-keescook@chromium.org> (raw)
In-Reply-To: <20180925001832.18322-1-keescook@chromium.org>

In preparation for lifting the "is this LSM enabled?" logic out of the
individual LSMs, pass in any special enabled state tracking (as needed
for SELinux, AppArmor, and LoadPin). This should be an "int" to include
handling any future cases where "enabled" is exposed via sysctl which
has no "bool" type.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 include/linux/lsm_hooks.h | 1 +
 security/apparmor/lsm.c   | 5 +++--
 security/selinux/hooks.c  | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 5056f7374b3d..2a41e8e6f6e5 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2044,6 +2044,7 @@ extern void security_add_hooks(struct security_hook_list *hooks, int count,
 struct lsm_info {
 	const char *name;	/* Populated automatically. */
 	unsigned long flags;	/* Optional: flags describing LSM */
+	int *enabled;		/* Optional: NULL means enabled. */
 	int (*init)(void);
 };
 
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 4c5f63e9aeba..d03133a267f2 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1303,8 +1303,8 @@ bool aa_g_paranoid_load = true;
 module_param_named(paranoid_load, aa_g_paranoid_load, aabool, S_IRUGO);
 
 /* Boot time disable flag */
-static bool apparmor_enabled = CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE;
-module_param_named(enabled, apparmor_enabled, bool, S_IRUGO);
+static int apparmor_enabled = CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE;
+module_param_named(enabled, apparmor_enabled, int, 0444);
 
 static int __init apparmor_enabled_setup(char *str)
 {
@@ -1608,5 +1608,6 @@ static int __init apparmor_init(void)
 
 DEFINE_LSM(apparmor)
 	.flags = LSM_FLAG_LEGACY_MAJOR,
+	.enabled = &apparmor_enabled,
 	.init = apparmor_init,
 END_LSM;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 615cf6498c0f..3f999ed98cfd 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -7204,6 +7204,7 @@ void selinux_complete_init(void)
    all processes and objects when they are created. */
 DEFINE_LSM(selinux)
 	.flags = LSM_FLAG_LEGACY_MAJOR,
+	.enabled = &selinux_enabled,
 	.init = selinux_init,
 END_LSM;
 
-- 
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 14/29] LSM: Plumb visibility into optional "enabled" state
Date: Mon, 24 Sep 2018 17:18:17 -0700	[thread overview]
Message-ID: <20180925001832.18322-15-keescook@chromium.org> (raw)
In-Reply-To: <20180925001832.18322-1-keescook@chromium.org>

In preparation for lifting the "is this LSM enabled?" logic out of the
individual LSMs, pass in any special enabled state tracking (as needed
for SELinux, AppArmor, and LoadPin). This should be an "int" to include
handling any future cases where "enabled" is exposed via sysctl which
has no "bool" type.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 include/linux/lsm_hooks.h | 1 +
 security/apparmor/lsm.c   | 5 +++--
 security/selinux/hooks.c  | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 5056f7374b3d..2a41e8e6f6e5 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2044,6 +2044,7 @@ extern void security_add_hooks(struct security_hook_list *hooks, int count,
 struct lsm_info {
 	const char *name;	/* Populated automatically. */
 	unsigned long flags;	/* Optional: flags describing LSM */
+	int *enabled;		/* Optional: NULL means enabled. */
 	int (*init)(void);
 };
 
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 4c5f63e9aeba..d03133a267f2 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1303,8 +1303,8 @@ bool aa_g_paranoid_load = true;
 module_param_named(paranoid_load, aa_g_paranoid_load, aabool, S_IRUGO);
 
 /* Boot time disable flag */
-static bool apparmor_enabled = CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE;
-module_param_named(enabled, apparmor_enabled, bool, S_IRUGO);
+static int apparmor_enabled = CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE;
+module_param_named(enabled, apparmor_enabled, int, 0444);
 
 static int __init apparmor_enabled_setup(char *str)
 {
@@ -1608,5 +1608,6 @@ static int __init apparmor_init(void)
 
 DEFINE_LSM(apparmor)
 	.flags = LSM_FLAG_LEGACY_MAJOR,
+	.enabled = &apparmor_enabled,
 	.init = apparmor_init,
 END_LSM;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 615cf6498c0f..3f999ed98cfd 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -7204,6 +7204,7 @@ void selinux_complete_init(void)
    all processes and objects when they are created. */
 DEFINE_LSM(selinux)
 	.flags = LSM_FLAG_LEGACY_MAJOR,
+	.enabled = &selinux_enabled,
 	.init = selinux_init,
 END_LSM;
 
-- 
2.17.1

  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 ` Kees Cook [this message]
2018-09-25  0:18   ` [PATCH security-next v3 14/29] LSM: Plumb visibility into optional "enabled" state 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 ` [PATCH security-next v3 27/29] capability: Initialize as LSM_ORDER_FIRST Kees Cook
2018-09-25  0:18   ` 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180925001832.18322-15-keescook@chromium.org \
    --to=keescook@chromium.org \
    --cc=casey.schaufler@intel.com \
    --cc=casey@schaufler-ca.com \
    --cc=corbet@lwn.net \
    --cc=jmorris@namei.org \
    --cc=john.johansen@canonical.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-security-module@vger.kernel.org \
    --cc=paul@paul-moore.com \
    --cc=penguin-kernel@i-love.sakura.ne.jp \
    --cc=sds@tycho.nsa.gov \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.