posix-acl: implementation of POSIX ACL as a translator

Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2815 (Server-enforced ACLs)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2815

1 files changed, 52 insertions, 0 deletions

diff --git a/xlators/system/posix-acl/src/posix-acl-xattr.h b/xlators/system/posix-acl/src/posix-acl-xattr.h
new file mode 100644
index 000000000..008a55db4
--- /dev/null
+++ b/xlators/system/posix-acl/src/posix-acl-xattr.h
@@ -0,0 +1,52 @@
+/*
+  Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Affero General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS 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
+  Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _POSIX_ACL_XATTR_H
+#define _POSIX_ACL_XATTR_H
+
+#include <stdint.h>
+
+#include "common-utils.h"
+#include "posix-acl.h"
+
+#define POSIX_ACL_ACCESS_XATTR "system.posix_acl_access"
+#define POSIX_ACL_DEFAULT_XATTR "system.posix_acl_default"
+
+#define POSIX_ACL_VERSION 2 
+
+struct posix_acl_xattr_entry {
+        uint16_t            tag;
+        uint16_t            perm;
+        uint32_t            id;
+};
+
+struct posix_acl_xattr_header {
+        uint32_t                        version;
+        struct posix_acl_xattr_entry    entries[0];
+};
+
+struct posix_acl *posix_acl_from_xattr (xlator_t *this, const char *buf, int size);
+
+int posix_acl_to_xattr (xlator_t *this, struct posix_acl *acl, char *buf, int size);
+
+int posix_acl_matches_xattr (xlator_t *this, struct posix_acl *acl, const char *buf, int size);
+
+
+#endif /* !_POSIX_ACL_XATTR_H */