initial work for the new idmpa interface

(This used to be commit 8338e74ac4e5f31150c96f459a67e52090dc6013)

2 files changed, 194 insertions, 0 deletions

diff --git a/source3/include/idmap.h b/source3/include/idmap.h
new file mode 100644
index 0000000000..0d358d3fbe
--- /dev/null
+++ b/source3/include/idmap.h
@@ -0,0 +1,49 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Idmap headers
+
+   Copyright (C) Anthony Liguori 2003
+   Copyright (C) Simo Sorce 2003
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library 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
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA  02111-1307, USA.   
+*/
+
+#define ID_USERID	1
+#define ID_GROUPID	2
+#define ID_OTHER	3
+
+typedef union id_t {
+	uid_t uid;
+	gid_t gid;
+} id_t;
+
+/* Filled out by IDMAP backends */
+struct idmap_methods {
+
+	/* Called when backend is first loaded */
+	NTSTATUS (*init)(void);
+
+	NTSTATUS (*get_sid_from_id)(DOM_SID *sid, id_t id, int id_type);
+	NTSTATUS (*get_id_from_sid)(id_t *id, int *id_type, DOM_SID *sid);
+
+	/* Called when backend is unloaded */
+	NTSTATUS (*close)(void);
+
+	/* Called to dump backend status */
+	void (*status)(void);
+};
+
diff --git a/source3/sam/idmap.c b/source3/sam/idmap.c
new file mode 100644
index 0000000000..617cbc9d28
--- /dev/null
+++ b/source3/sam/idmap.c
@@ -0,0 +1,145 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Winbind ID Mapping
+   Copyright (C) Tim Potter 2000
+   Copyright (C) Anthony Liguori <aliguor@us.ibm.com>	2003
+   Copyright (C) Simo Sorce 2003
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "idmap.h"
+
+static struct {
+
+	const char *name;
+	/* Function to create a member of the idmap_methods list */
+	NTSTATUS (*reg_meth)(struct idmap_methods **methods);
+	struct idmap_methods *methods;
+} builtin_idmap_functions[] = {
+	{ "tdb", idmap_reg_tdb, NULL },
+	/* { "ldap", idmap_reg_ldap, NULL },*/
+	{ NULL, NULL, NULL }
+};
+
+/* singleton pattern: uberlazy evaluation */
+static struct idmap_methods *impl;
+
+static struct idmap_methods *get_impl(const char *name)
+{
+	int i = 0;
+	struct idmap_methods *ret = NULL;
+
+	while (builtin_idmap_functions[i].name && strcmp(builtin_idmap_functions[i].name, name)) {
+		i++;
+	}
+
+	if (builtin_idmap_functions[i].name) {
+
+		if (!builtin_idmap_functions[i].methods) {
+			builtin_idmap_functions[i].reg_meth(&builtin_idmap_functions[i].methods);
+		}
+
+		ret = builtin_idmap_functions[i].methods;
+	}
+
+	return ret;
+}
+
+/* Load idmap backend functions */
+BOOL set_impl(void)
+{
+	if (!impl) {
+		DEBUG(3, ("idmap_init: using '%s' as backend\n", lp_idmap_backend()));
+		
+		impl = get_impl(lp_idmap_backend());
+		if (!impl) {
+			DEBUG(0, ("set_impl: could not load backend '%s'\n", lp_idmap_backend()));
+			return False;
+		}
+	}
+	return True;
+}
+
+/* Initialize backend */
+NTSTATUS idmap_init(void)
+{
+	NTSTATUS ret;
+
+	if (!set_impl()) return NT_STATUS_UNSUCCESSFUL;
+
+	ret = impl->init();
+	if (NT_STATUS_IS_ERR(ret)) {
+		DEBUG(3, ("idmap_init: init failed!\n"));
+	}
+
+	return ret;
+}
+
+/* Get ID from SID */
+NTSTATUS idmap_get_id_from_sid(id_t *id, int *id_type, DOM_SID *sid)
+{
+	NTSTATUS ret;
+
+	if (!set_impl()) return NT_STATUS_UNSUCCESSFUL;
+
+	ret = impl->get_id_from_sid(id, id_type, sid);
+	if (NT_STATUS_IS_ERR(ret)) {
+		DEBUG(3, ("idmap_get_id_from_sid: error fetching id!\n"));
+	}
+
+	return ret;
+}
+
+/* Get SID from ID */
+NTSTATUS idmap_get_sid_from_id(DOM_SID *sid, id_t id, int id_type)
+{
+	NTSTATUS ret;
+
+	if (!set_impl()) return NT_STATUS_UNSUCCESSFUL;
+
+	ret = impl->get_sid_from_id(sid, id, id_type);
+	if (NT_STATUS_IS_ERR(ret)) {
+		DEBUG(3, ("idmap_get_sid_from_id: error fetching sid!\n"));
+	}
+
+	return ret;
+}
+
+
+/* Close backend */
+NTSTATUS idmap_close(void)
+{
+	NTSTATUS ret;
+
+	if (!set_impl()) return NT_STATUS_UNSUCCESSFUL;
+
+	ret = impl->close();
+	if (NT_STATUS_IS_ERR(ret)) {
+		DEBUG(3, ("idmap_close: close failed!\n"));
+	}
+
+	return ret;
+}
+
+/* Dump backend status */
+void idmap_status(void)
+{
+	if (!set_impl()) return;
+
+	impl->status();
+}
+