[Cluster-devel] [PATCH] GFS2 security initialization

[Ryan O'Hara]

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 at redhat.com>
---

diff -urpN a/fs/gfs2/inode.c b/fs/gfs2/inode.c
--- a/fs/gfs2/inode.c   2006-09-29 12:34:22.000000000 -0500
+++ b/fs/gfs2/inode.c   2006-09-29 16:09:31.000000000 -0500
@@ -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_h
         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;