From: Brad Peters <brad.t.peters@intel.com>
Date: Thu, 25 Jul 2013 18:10:05 +0000 (-0700)
Subject: Add Smack mount point in sysfs
X-Git-Tag: submit/tizen_3.0/20130725.112737^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6131862c0235e927d3357dfde740de5dea47c364;p=platform%2Fkernel%2Fkernel-mfld-blackbay.git

Add Smack mount point in sysfs

Ported from upstream for 3.0.8 Mobile by brad.t.peters@intel.com
Original commit:
From: Casey Schaufler <casey@schaufler-ca.com>

There are a number of "conventions" for where to put LSM filesystems.
Smack adheres to none of them. Create a mount point at /sys/fs/smackfs
for mounting smackfs so that Smack can be conventional.

Targeted for git://git.gitorious.org/smack-next/kernel.git

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 99929a5..e8d3e78 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -2063,6 +2063,20 @@ static const struct file_operations smk_revoke_subj_ops = {
 	.llseek		= generic_file_llseek,
 };
 
+static struct kset *smackfs_kset;
+/**
+ * smk_init_sysfs - initialize /sys/fs/smackfs
+ *
+ */
+static int smk_init_sysfs(void)
+{
+	smackfs_kset = kset_create_and_add("smackfs", NULL, fs_kobj);
+	if (!smackfs_kset)
+		return -ENOMEM;
+	return 0;
+}
+
+
 /**
  * smk_fill_super - fill the /smackfs superblock
  * @sb: the empty superblock
@@ -2183,6 +2197,10 @@ static int __init init_smk_fs(void)
 	if (!security_module_enable(&smack_ops))
 		return 0;
 
+	err = smk_init_sysfs();
+	if (err)	
+		printk(KERN_ERR "smackfs: sysfs mountpoint problem.\n");
+
 	err = register_filesystem(&smk_fs_type);
 	if (!err) {
 		smackfs_mount = kern_mount(&smk_fs_type);