linux-kernel - [PATCH v1 3/3] security: Add LSMs dependencies to CONFIG

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Date:   Mon, 15 Feb 2021 13:25:13 +0100
From:   Mickaël Salaün <mic@...ikod.net>
To:     James Morris <jmorris@...ei.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        "Serge E . Hallyn" <serge@...lyn.com>
Cc:     Mickaël Salaün <mic@...ikod.net>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Nicolas Iooss <nicolas.iooss@....org>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        Mickaël Salaün <mic@...ux.microsoft.com>
Subject: [PATCH v1 3/3] security: Add LSMs dependencies to CONFIG_LSM

From: Mickaël Salaün <mic@...ux.microsoft.com>

Thanks to the previous commit, this gives the opportunity to users, when
running make oldconfig, to update the list of enabled LSMs at boot time
if an LSM has just been enabled or disabled in the build.  Moreover,
this list only makes sense if at least one LSM is enabled.

Cc: Casey Schaufler <casey@...aufler-ca.com>
Cc: James Morris <jmorris@...ei.org>
Cc: Masahiro Yamada <masahiroy@...nel.org>
Cc: Serge E. Hallyn <serge@...lyn.com>
Signed-off-by: Mickaël Salaün <mic@...ux.microsoft.com>
Link: https://lore.kernel.org/r/20210215122513.1773897-4-mic@digikod.net
---
 security/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/security/Kconfig b/security/Kconfig
index 7561f6f99f1d..2bc9ff351176 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -277,6 +277,10 @@ endchoice
 
 config LSM
 	string "Ordered list of enabled LSMs"
+	depends on SECURITY_LOCKDOWN_LSM || SECURITY_YAMA || SECURITY_LOADPIN || \
+		SECURITY_SAFESETID || INTEGRITY || SECURITY_SELINUX || \
+		SECURITY_SMACK || SECURITY_TOMOYO || SECURITY_APPARMOR || \
+		BPF_LSM
 	default "lockdown,yama,loadpin,safesetid,integrity,smack,selinux,tomoyo,apparmor,bpf" if DEFAULT_SECURITY_SMACK
 	default "lockdown,yama,loadpin,safesetid,integrity,apparmor,selinux,smack,tomoyo,bpf" if DEFAULT_SECURITY_APPARMOR
 	default "lockdown,yama,loadpin,safesetid,integrity,tomoyo,bpf" if DEFAULT_SECURITY_TOMOYO
-- 
2.30.0