source: branches/samba-3.5.x/source4/winbind/wb_cmd_setpwent.c

/*
   Unix SMB/CIFS implementation.

   Command backend for setpwent

   Copyright (C) Kai Blin 2007

   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 "libcli/composite/composite.h"
#include "winbind/wb_server.h"
#include "winbind/wb_async_helpers.h"
#include "winbind/wb_helper.h"
#include "smbd/service_task.h"
#include "libnet/libnet_proto.h"

struct cmd_setpwent_state {
        struct composite_context *ctx;
        struct wbsrv_service *service;
        struct libnet_context *libnet_ctx;

        struct wbsrv_pwent *result;
};

static void cmd_setpwent_recv_domain(struct composite_context *ctx);
static void cmd_setpwent_recv_user_list(struct composite_context *ctx);

struct composite_context *wb_cmd_setpwent_send(TALLOC_CTX *mem_ctx,
                struct wbsrv_service *service)
{
        struct composite_context *ctx, *result;
        struct cmd_setpwent_state *state;

        DEBUG(5, ("wb_cmd_setpwent_send called\n"));

        result = composite_create(mem_ctx, service->task->event_ctx);
        if (!result) return NULL;

        state = talloc(mem_ctx, struct cmd_setpwent_state);
        if (composite_nomem(state, result)) return result;

        state->ctx = result;
        result->private_data = state;
        state->service = service;

        state->result = talloc(state, struct wbsrv_pwent);
        if (composite_nomem(state->result, state->ctx)) return result;

        ctx = wb_sid2domain_send(state, service, service->primary_sid);
        if (composite_nomem(ctx, state->ctx)) return result;

        composite_continue(state->ctx, ctx, cmd_setpwent_recv_domain, state);
        return result;
}

static void cmd_setpwent_recv_domain(struct composite_context *ctx)
{
        struct cmd_setpwent_state *state = talloc_get_type(
                        ctx->async.private_data, struct cmd_setpwent_state);
        struct wbsrv_domain *domain;
        struct libnet_UserList *user_list;

        DEBUG(5, ("cmd_setpwent_recv_domain called\n"));

        state->ctx->status = wb_sid2domain_recv(ctx, &domain);
        if (!composite_is_ok(state->ctx)) return;

        state->libnet_ctx = domain->libnet_ctx;

        user_list = talloc(state->result, struct libnet_UserList);
        if (composite_nomem(user_list, state->ctx)) return;

        user_list->in.domain_name = talloc_strdup(state,
                        domain->libnet_ctx->samr.name);
        if (composite_nomem(user_list->in.domain_name, state->ctx)) return;

        /* Page size recommended by Rafal */
        user_list->in.page_size = 128;

        /* Always get the start of the list */
        user_list->in.resume_index = 0;

        ctx = libnet_UserList_send(domain->libnet_ctx, state->result, user_list,
                        NULL);

        composite_continue(state->ctx, ctx, cmd_setpwent_recv_user_list, state);
}

static void cmd_setpwent_recv_user_list(struct composite_context *ctx)
{
        struct cmd_setpwent_state *state = talloc_get_type(
                        ctx->async.private_data, struct cmd_setpwent_state);
        struct libnet_UserList *user_list;

        DEBUG(5, ("cmd_setpwent_recv_user_list called\n"));

        user_list = talloc(state->result, struct libnet_UserList);
        if (composite_nomem(user_list, state->ctx)) return;

        state->ctx->status = libnet_UserList_recv(ctx, state->result,
                        user_list);
        if (!composite_is_ok(state->ctx)) return;

        state->result->user_list = user_list;
        state->result->page_index = 0;
        state->result->libnet_ctx = state->libnet_ctx;

        composite_done(state->ctx);
}

NTSTATUS wb_cmd_setpwent_recv(struct composite_context *ctx,
                TALLOC_CTX *mem_ctx, struct wbsrv_pwent **pwent)
{
        NTSTATUS status = composite_wait(ctx);

        DEBUG(5, ("wb_cmd_setpwent_recv called\n"));

        if (NT_STATUS_IS_OK(status)) {
                struct cmd_setpwent_state *state =
                        talloc_get_type(ctx->private_data,
                                struct cmd_setpwent_state);

                *pwent = talloc_steal(mem_ctx, state->result);
        }

        talloc_free(ctx);
        return status;
}