/*
 * Unix SMB/CIFS implementation.
 *
 * Winbind rpc backend functions
 *
 * Copyright (c) 2000-2003 Tim Potter
 * Copyright (c) 2001      Andrew Tridgell
 * Copyright (c) 2005      Volker Lendecke
 * Copyright (c) 2008      Guenther Deschner (pidl conversion)
 * Copyright (c) 2010      Andreas Schneider <asn@samba.org>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include "includes.h"
#include "winbindd.h"
#include "winbindd_rpc.h"

#include "librpc/gen_ndr/cli_samr.h"
#include "librpc/gen_ndr/srv_samr.h"
#include "librpc/gen_ndr/cli_lsa.h"
#include "librpc/gen_ndr/srv_lsa.h"
#include "rpc_client/cli_samr.h"
#include "rpc_client/cli_lsarpc.h"

/* List all domain groups */
NTSTATUS rpc_enum_dom_groups(TALLOC_CTX *mem_ctx,
			     struct rpc_pipe_client *samr_pipe,
			     struct policy_handle *samr_policy,
			     uint32_t *pnum_info,
			     struct acct_info **pinfo)
{
	struct acct_info *info = NULL;
	uint32_t start = 0;
	uint32_t num_info = 0;
	NTSTATUS status;

	*pnum_info = 0;

	do {
		struct samr_SamArray *sam_array = NULL;
		uint32_t count = 0;
		uint32_t g;

		/* start is updated by this call. */
		status = rpccli_samr_EnumDomainGroups(samr_pipe,
						      mem_ctx,
						      samr_policy,
						      &start,
						      &sam_array,
						      0xFFFF, /* buffer size? */
						      &count);
		if (!NT_STATUS_IS_OK(status)) {
			if (!NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
				DEBUG(2,("query_user_list: failed to enum domain groups: %s\n",
					 nt_errstr(status)));
				return status;
			}
		}

		info = TALLOC_REALLOC_ARRAY(mem_ctx,
					    info,
					    struct acct_info,
					    num_info + count);
		if (info == NULL) {
			return NT_STATUS_NO_MEMORY;
		}

		for (g = 0; g < count; g++) {
			fstrcpy(info[num_info + g].acct_name,
				sam_array->entries[g].name.string);

			info[num_info + g].rid = sam_array->entries[g].idx;
		}

		num_info += count;
	} while (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES));

	*pnum_info = num_info;
	*pinfo = info;

	return NT_STATUS_OK;
}