linux-kernel - [PATCH 09/34] vfs: Put security flags into the fs

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Message-ID: <153754748062.17872.4161729886420137521.stgit@warthog.procyon.org.uk>
Date:   Fri, 21 Sep 2018 17:31:20 +0100
From:   David Howells <dhowells@...hat.com>
To:     viro@...iv.linux.org.uk
Cc:     torvalds@...ux-foundation.org, dhowells@...hat.com,
        ebiederm@...ssion.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, mszeredi@...hat.com
Subject: [PATCH 09/34] vfs: Put security flags into the fs_context struct
 [ver #12]

Put security flags, such as SECURITY_LSM_NATIVE_LABELS, into the filesystem
context so that the filesystem can communicate them to the LSM more easily.

Signed-off-by: David Howells <dhowells@...hat.com>
---

 include/linux/fs_context.h |    1 +
 include/linux/security.h   |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h
index 4b7327852b7f..83c40d30868e 100644
--- a/include/linux/fs_context.h
+++ b/include/linux/fs_context.h
@@ -89,6 +89,7 @@ struct fs_context {
 	void			*s_fs_info;	/* Proposed s_fs_info */
 	unsigned int		sb_flags;	/* Proposed superblock flags (SB_*) */
 	unsigned int		sb_flags_mask;	/* Superblock flags that were changed */
+	unsigned int		lsm_flags;	/* Information flags from the fs to the LSM */
 	enum fs_context_purpose	purpose:8;
 	bool			sloppy:1;	/* T if unrecognised options are okay */
 	bool			silent:1;	/* T if "o silent" specified */
diff --git a/include/linux/security.h b/include/linux/security.h
index 636215bf4c1b..bae191a96c73 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -61,7 +61,7 @@ enum fs_value_type;
 #define SECURITY_CAP_NOAUDIT 0
 #define SECURITY_CAP_AUDIT 1
 
-/* LSM Agnostic defines for sb_set_mnt_opts */
+/* LSM Agnostic defines for fs_context::lsm_flags */
 #define SECURITY_LSM_NATIVE_LABELS	1
 
 struct ctl_table;