Branch HEAD

[fs/lustre-release.git] / lustre / ptlrpc / gss / gss_rawobj.c

diff --git a/lustre/ptlrpc/gss/gss_rawobj.c b/lustre/ptlrpc/gss/gss_rawobj.c
index 847cb4d..d972b00 100644 (file)
--- a/lustre/ptlrpc/gss/gss_rawobj.c
+++ b/lustre/ptlrpc/gss/gss_rawobj.c
@@ -1,22 +1,41 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- * Copyright (C) 2004 Cluster File Systems, Inc.
+ * GPL HEADER START
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/ptlrpc/gss/gss_rawobj.c
+ *
+ * Author: Eric Mei <ericm@clusterfs.com>
  */
 
 #ifndef EXPORT_SYMTAB
@@ -24,6 +43,8 @@
 #endif
 #define DEBUG_SUBSYSTEM S_SEC
 
+#include <linux/mutex.h>
+
 #include <obd.h>
 #include <obd_class.h>
 #include <obd_support.h>
@@ -31,6 +52,12 @@
 
 #include "gss_internal.h"
 
+int rawobj_empty(rawobj_t *obj)
+{
+        LASSERT(equi(obj->len, obj->data));
+        return (obj->len == 0);
+}
+
 int rawobj_alloc(rawobj_t *obj, char *buf, int len)
 {
         LASSERT(obj);
@@ -170,6 +197,11 @@ int rawobj_extract_local(rawobj_t *obj, __u32 **buf, __u32 *buflen)
         return __rawobj_extract(obj, buf, buflen, 0, 1);
 }
 
+int rawobj_extract_local_alloc(rawobj_t *obj, __u32 **buf, __u32 *buflen)
+{
+        return __rawobj_extract(obj, buf, buflen, 1, 1);
+}
+
 int rawobj_from_netobj(rawobj_t *rawobj, netobj_t *netobj)
 {
         rawobj->len = netobj->len;
@@ -193,3 +225,21 @@ int rawobj_from_netobj_alloc(rawobj_t *rawobj, netobj_t *netobj)
         memcpy(rawobj->data, netobj->data, netobj->len);
         return 0;
 }
+
+/****************************************
+ * misc more                            *
+ ****************************************/
+
+int buffer_extract_bytes(const void **buf, __u32 *buflen,
+                         void *res, __u32 reslen)
+{
+        if (*buflen < reslen) {
+                CERROR("buflen %u < %u\n", *buflen, reslen);
+                return -EINVAL;
+        }
+
+        memcpy(res, *buf, reslen);
+        *buf += reslen;
+        *buflen -= reslen;
+        return 0;
+}