[v37,25/33] LSM: Add a function to report multiple LSMs

Message ID	20220628005611.13106-26-casey@schaufler-ca.com (mailing list archive)
State	Handled Elsewhere
Delegated to:	Paul Moore
Headers	show Return-Path: <selinux-owner@kernel.org> From: Casey Schaufler <casey@schaufler-ca.com> To: casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: casey@schaufler-ca.com, linux-audit@redhat.com, keescook@chromium.org, john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com, stephen.smalley.work@gmail.com, linux-kernel@vger.kernel.org Subject: [PATCH v37 25/33] LSM: Add a function to report multiple LSMs Date: Mon, 27 Jun 2022 17:56:03 -0700 Message-Id: <20220628005611.13106-26-casey@schaufler-ca.com> In-Reply-To: <20220628005611.13106-1-casey@schaufler-ca.com> References: <20220628005611.13106-1-casey@schaufler-ca.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	[v37,01/33] integrity: disassociate ima_filter_rule from security_audit_rule \| expand [v37,01/33] integrity: disassociate ima_filter_rule from security_audit_rule [v37,02/33] LSM: Infrastructure management of the sock security [v37,03/33] LSM: Add the lsmblob data structure. [v37,04/33] LSM: provide lsm name and id slot mappings [v37,05/33] IMA: avoid label collisions with stacked LSMs [v37,06/33] LSM: Use lsmblob in security_audit_rule_match [v37,07/33] LSM: Use lsmblob in security_kernel_act_as [v37,08/33] LSM: Use lsmblob in security_secctx_to_secid [v37,09/33] LSM: Use lsmblob in security_secid_to_secctx [v37,10/33] LSM: Use lsmblob in security_ipc_getsecid [v37,11/33] LSM: Use lsmblob in security_current_getsecid [v37,12/33] LSM: Use lsmblob in security_inode_getsecid [v37,13/33] LSM: Use lsmblob in security_cred_getsecid [v37,14/33] LSM: Specify which LSM to display [v37,15/33] LSM: Ensure the correct LSM context releaser [v37,16/33] LSM: Use lsmcontext in security_secid_to_secctx [v37,17/33] LSM: Use lsmcontext in security_inode_getsecctx [v37,18/33] LSM: Use lsmcontext in security_dentry_init_security [v37,19/33] LSM: security_secid_to_secctx in netlink netfilter [v37,20/33] NET: Store LSM netlabel data in a lsmblob [v37,21/33] binder: Pass LSM identifier for confirmation [v37,22/33] LSM: security_secid_to_secctx module selection [v37,23/33] Audit: Keep multiple LSM data in audit_names [v37,24/33] Audit: Create audit_stamp structure [v37,25/33] LSM: Add a function to report multiple LSMs [v37,26/33] Audit: Allow multiple records in an audit_buffer [v37,27/33] Audit: Add record for multiple task security contexts [v37,28/33] audit: multiple subject lsm values for netlabel [v37,29/33] Audit: Add record for multiple object contexts [v37,30/33] netlabel: Use a struct lsmblob in audit data [v37,31/33] LSM: Removed scaffolding function lsmcontext_init [v37,32/33] LSM: Add /proc attr entry for full LSM context [v37,33/33] AppArmor: Remove the exclusive flag

Message ID

20220628005611.13106-26-casey@schaufler-ca.com (mailing list archive)

State

Handled Elsewhere

Delegated to:

Paul Moore

Headers

From: Casey Schaufler <casey@schaufler-ca.com>
To: casey.schaufler@intel.com, jmorris@namei.org,
        linux-security-module@vger.kernel.org, selinux@vger.kernel.org
Cc: casey@schaufler-ca.com, linux-audit@redhat.com,
        keescook@chromium.org, john.johansen@canonical.com,
        penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com,
        stephen.smalley.work@gmail.com, linux-kernel@vger.kernel.org
Subject: [PATCH v37 25/33] LSM: Add a function to report multiple LSMs
Date: Mon, 27 Jun 2022 17:56:03 -0700
Message-Id: <20220628005611.13106-26-casey@schaufler-ca.com>
In-Reply-To: <20220628005611.13106-1-casey@schaufler-ca.com>
References: <20220628005611.13106-1-casey@schaufler-ca.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

[v37,01/33] integrity: disassociate ima_filter_rule from security_audit_rule | expand

Commit Message

Casey Schaufler June 28, 2022, 12:56 a.m. UTC

Add a new boolean function lsm_multiple_contexts() to
identify when multiple security modules provide security
context strings.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: John Johansen <john.johansen@canonical.com>
---
 include/linux/security.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/security.h b/include/linux/security.h
index 5ebc3ec6948c..890a5f9f043c 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -245,6 +245,15 @@  static inline const char *lsm_slot_to_name(int slot)
 }
 #endif
 
+static inline bool lsm_multiple_contexts(void)
+{
+#ifdef CONFIG_SECURITY
+	return lsm_slot_to_name(1) != NULL;
+#else
+	return false;
+#endif
+}
+
 /**
  * lsmblob_value - find the first non-zero value in an lsmblob structure.
  * @blob: Pointer to the data

[v37,25/33] LSM: Add a function to report multiple LSMs

Commit Message

Patch