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authorCasey Schaufler <casey@schaufler-ca.com>2018-11-12 12:43:01 -0800
committerKees Cook <keescook@chromium.org>2019-01-08 13:18:45 -0800
commitfb4021b6fb5818df1228a35b7e2645038d01bb9f (patch)
tree78747e82a4fd859b0ed41224d35e0884a01af210 /security/smack/smack.h
parent80788c229116b28cc914d73c142f74bdee28ab57 (diff)
downloadlinux-fb4021b6fb5818df1228a35b7e2645038d01bb9f.tar.gz
Smack: Abstract use of inode security blob
Don't use the inode->i_security pointer directly. Provide a helper function that provides the security blob pointer. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'security/smack/smack.h')
-rw-r--r--security/smack/smack.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/security/smack/smack.h b/security/smack/smack.h
index 2007d38d0e46..436231dfae33 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -368,12 +368,17 @@ static inline struct smack_known **smack_file(const struct file *file)
smack_blob_sizes.lbs_file);
}
+static inline struct inode_smack *smack_inode(const struct inode *inode)
+{
+ return inode->i_security;
+}
+
/*
* Is the directory transmuting?
*/
static inline int smk_inode_transmutable(const struct inode *isp)
{
- struct inode_smack *sip = isp->i_security;
+ struct inode_smack *sip = smack_inode(isp);
return (sip->smk_flags & SMK_INODE_TRANSMUTE) != 0;
}
@@ -382,7 +387,7 @@ static inline int smk_inode_transmutable(const struct inode *isp)
*/
static inline struct smack_known *smk_of_inode(const struct inode *isp)
{
- struct inode_smack *sip = isp->i_security;
+ struct inode_smack *sip = smack_inode(isp);
return sip->smk_inode;
}