[GFS2] Initialize SELinux extended attributes at inode creation time.

This patch has gfs2_security_init declared as a static function, which
is correct. As a result, the declaration of this function in inode.h is
removed (and thus inode.h is unchanged). Also removed #include eaops.h,
which is not needed.

Signed-Off-By: Ryan O'Hara <rohara@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 81a921165941..57c43ac47925 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -17,6 +17,7 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
 #include <linux/lm_interface.h>
+#include <linux/security.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -806,6 +807,39 @@ fail:
         return error;
 }
 
+static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
+{
+        int err;
+        size_t len;
+        void *value;
+        char *name;
+        struct gfs2_ea_request er;
+
+        err = security_inode_init_security(&ip->i_inode, &dip->i_inode,
+                                           &name, &value, &len);
+
+        if (err) {
+                if (err == -EOPNOTSUPP)
+                        return 0;
+                return err;
+        }
+
+        memset(&er, 0, sizeof(struct gfs2_ea_request));
+
+        er.er_type = GFS2_EATYPE_SECURITY;
+        er.er_name = name;
+        er.er_data = value;
+        er.er_name_len = strlen(name);
+        er.er_data_len = len;
+
+        err = gfs2_ea_set_i(ip, &er);
+
+        kfree(value);
+        kfree(name);
+
+        return err;
+}
+
 /**
  * gfs2_createi - Create a new inode
  * @ghs: An array of two holders
@@ -897,6 +931,10 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
         if (error)
                 goto fail_iput;
 
+        error = gfs2_security_init(dip, GFS2_I(inode));
+        if (error)
+                goto fail_iput;
+
         error = link_dinode(dip, name, GFS2_I(inode));
         if (error)
                 goto fail_iput;