JFS: Implement jfs_init_security

[pandora-kernel.git] / fs / jfs / xattr.c

diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 35674b2..23aa506 100644 (file)
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -21,6 +21,7 @@
 #include <linux/xattr.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/quotaops.h>
+#include <linux/security.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_dmap.h"
@@ -1148,3 +1149,38 @@ int jfs_removexattr(struct dentry *dentry, const char *name)
 
        return rc;
 }
+
+#ifdef CONFIG_JFS_SECURITY
+int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir)
+{
+       int rc;
+       size_t len;
+       void *value;
+       char *suffix;
+       char *name;
+
+       rc = security_inode_init_security(inode, dir, &suffix, &value, &len);
+       if (rc) {
+               if (rc == -EOPNOTSUPP)
+                       return 0;
+               return rc;
+       }
+       name = kmalloc(XATTR_SECURITY_PREFIX_LEN + 1 + strlen(suffix),
+                      GFP_NOFS);
+       if (!name) {
+               rc = -ENOMEM;
+               goto kmalloc_failed;
+       }
+       strcpy(name, XATTR_SECURITY_PREFIX);
+       strcpy(name + XATTR_SECURITY_PREFIX_LEN, suffix);
+
+       rc = __jfs_setxattr(tid, inode, name, value, len, 0);
+
+       kfree(name);
+kmalloc_failed:
+       kfree(suffix);
+       kfree(value);
+
+       return rc;
+}
+#endif