add idmap_winbind unless I made a better way to solve SID type for domain

SIDs
(This used to be commit b24c0efc4b363cb0d4ed71588e9617d668c16be9)

2 files changed, 156 insertions, 0 deletions

diff --git a/source3/sam/idmap.c b/source3/sam/idmap.c
index 9695e7b764..e2796e0864 100644
--- a/source3/sam/idmap.c
+++ b/source3/sam/idmap.c
@@ -32,6 +32,7 @@ static struct {
 	struct idmap_methods *methods;
 
 } remote_idmap_functions[] = {
+	{ "winbind", idmap_reg_winbind, NULL },
 	{ NULL, NULL, NULL }
 };
 
diff --git a/source3/sam/idmap_winbind.c b/source3/sam/idmap_winbind.c
new file mode 100644
index 0000000000..bc3c8ad60c
--- /dev/null
+++ b/source3/sam/idmap_winbind.c
@@ -0,0 +1,155 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   idmap Winbind backend
+
+   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 "nsswitch/winbind_nss.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+extern DOM_SID global_sid_NULL;            		/* NULL sid */
+
+NSS_STATUS winbindd_request(int req_type,
+                                 struct winbindd_request *request,
+                                 struct winbindd_response *response);
+
+/* Get a sid from an id */
+static NTSTATUS db_get_sid_from_id(DOM_SID *sid, unid_t id, int id_type)
+{
+	struct winbindd_request request;
+	struct winbindd_response response;
+	int result, operation;
+
+	ZERO_STRUCT(request);
+	ZERO_STRUCT(response);
+
+	switch (id_type & ID_TYPEMASK) {
+		case ID_USERID:
+			request.data.uid = id.uid;
+			operation = WINBINDD_UID_TO_SID;
+			break;
+		case ID_GROUPID:
+			request.data.gid = id.gid;
+			operation = WINBINDD_GID_TO_SID;
+			break;
+		default:
+			return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* Make The Request */
+	result = winbindd_request(operation, &request, &response);
+	if (result == NSS_STATUS_SUCCESS) {
+		if (!string_to_sid(sid, response.data.sid.sid)) {
+			return NT_STATUS_INVALID_SID;
+		}
+		return NT_STATUS_OK;
+	} else {
+		sid_copy(sid, &global_sid_NULL);
+	}
+
+	return NT_STATUS_UNSUCCESSFUL;
+}
+
+/* Get an id from a sid */
+static NTSTATUS db_get_id_from_sid(unid_t *id, int *id_type, const DOM_SID *sid)
+{
+	struct winbindd_request request;
+	struct winbindd_response response;
+	int result, operation;
+	fstring sid_str;
+
+	if (!id || !id_type) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+ 	/* setup request */
+
+	ZERO_STRUCT(request);
+	ZERO_STRUCT(response);
+
+	switch (*id_type & ID_TYPEMASK) {
+		case ID_USERID:
+			operation = WINBINDD_SID_TO_UID;
+			break;
+		case ID_GROUPID:
+			operation = WINBINDD_SID_TO_GID;
+			break;
+		default:
+			return NT_STATUS_INVALID_PARAMETER;
+	}
+
+ 	sid_to_string(sid_str, sid);
+ 	fstrcpy(request.data.sid, sid_str);
+
+	/* Make The Request */
+	result = winbindd_request(operation, &request, &response);
+
+	if (result == NSS_STATUS_SUCCESS) {
+		if (operation == WINBINDD_SID_TO_UID) {
+			(*id).uid = response.data.uid;
+		} else {
+			(*id).gid = response.data.gid;
+		}
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_UNSUCCESSFUL;
+}	
+
+static NTSTATUS db_set_mapping(const DOM_SID *sid, unid_t id, int id_type) {
+	return NT_STATUS_UNSUCCESSFUL;
+}
+
+/*****************************************************************************
+ Initialise idmap database. 
+*****************************************************************************/
+static NTSTATUS db_init(void) {
+	return NT_STATUS_OK;
+}
+
+/* Close the tdb */
+static NTSTATUS db_close(void) {
+	return NT_STATUS_OK;
+}
+
+static void db_status(void) {
+	return;
+}
+
+struct idmap_methods winbind_methods = {
+
+	db_init,
+	db_get_sid_from_id,
+	db_get_id_from_sid,
+	db_set_mapping,
+	db_close,
+	db_status
+
+};
+
+NTSTATUS idmap_reg_winbind(struct idmap_methods **meth)
+{
+	*meth = &winbind_methods;
+
+	return NT_STATUS_OK;
+}
+