Thread (3 messages) 3 messages, 3 authors, 2017-05-19

[PATCH] selinux: Remove redundant check for unknown labeling behavior

From: Stephen Smalley <hidden>
Date: 2017-05-19 17:26:13
Also in: lkml, selinux

On Fri, 2017-05-19 at 10:09 -0700, Matthias Kaehlcke wrote:
The check is already performed in ocontext_read() when the policy is
loaded. Removing the array also fixes the following warning when
building with clang:

security/selinux/hooks.c:338:20: error: variable 'labeling_behaviors'
????is not needed and will not be emitted
????[-Werror,-Wunneeded-internal-declaration]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Stephen Smalley <redacted>
quoted hunk ↗ jump to hunk
---
?security/selinux/hooks.c | 16 ----------------
?1 file changed, 16 deletions(-)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index e67a526d1f30..2e0227b0304f 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -398,18 +398,6 @@ static void superblock_free_security(struct
super_block *sb)
?	kfree(sbsec);
?}
?
-/* The file system's label must be initialized prior to use. */
-
-static const char *labeling_behaviors[7] = {
-	"uses xattr",
-	"uses transition SIDs",
-	"uses task SIDs",
-	"uses genfs_contexts",
-	"not configured for labeling",
-	"uses mountpoint labeling",
-	"uses native labeling",
-};
-
?static inline int inode_doinit(struct inode *inode)
?{
?	return inode_doinit_with_dentry(inode, NULL);
@@ -524,10 +512,6 @@ static int sb_finish_set_opts(struct super_block
*sb)
?		}
?	}
?
-	if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-		printk(KERN_ERR "SELinux: initialized (dev %s, type
%s), unknown behavior\n",
-		???????sb->s_id, sb->s_type->name);
-
?	sbsec->flags |= SE_SBINITIALIZED;
?	if (selinux_is_sblabel_mnt(sb))
?		sbsec->flags |= SBLABEL_MNT;
--
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