source: trunk/server/source3/winbindd/winbindd_sid_to_uid.c@ 898

/*
   Unix SMB/CIFS implementation.
   async implementation of WINBINDD_SID_TO_UID
   Copyright (C) Volker Lendecke 2009

   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 "../libcli/security/security.h"

struct winbindd_sid_to_uid_state {
        struct dom_sid sid;
        uid_t uid;
};

static void winbindd_sid_to_uid_done(struct tevent_req *subreq);

struct tevent_req *winbindd_sid_to_uid_send(TALLOC_CTX *mem_ctx,
                                            struct tevent_context *ev,
                                            struct winbindd_cli_state *cli,
                                            struct winbindd_request *request)
{
        struct tevent_req *req, *subreq;
        struct winbindd_sid_to_uid_state *state;

        req = tevent_req_create(mem_ctx, &state,
                                struct winbindd_sid_to_uid_state);
        if (req == NULL) {
                return NULL;
        }

        /* Ensure null termination */
        request->data.sid[sizeof(request->data.sid)-1]='\0';

        DEBUG(3, ("sid to uid %s\n", request->data.sid));

        if (!string_to_sid(&state->sid, request->data.sid)) {
                DEBUG(1, ("Could not get convert sid %s from string\n",
                          request->data.sid));
                tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
                return tevent_req_post(req, ev);
        }

        subreq = wb_sid2uid_send(state, ev, &state->sid);
        if (tevent_req_nomem(subreq, req)) {
                return tevent_req_post(req, ev);
        }
        tevent_req_set_callback(subreq, winbindd_sid_to_uid_done, req);
        return req;
}

static void winbindd_sid_to_uid_done(struct tevent_req *subreq)
{
        struct tevent_req *req = tevent_req_callback_data(
                subreq, struct tevent_req);
        struct winbindd_sid_to_uid_state *state = tevent_req_data(
                req, struct winbindd_sid_to_uid_state);
        NTSTATUS status;

        status = wb_sid2uid_recv(subreq, &state->uid);
        TALLOC_FREE(subreq);
        if (tevent_req_nterror(req, status)) {
                return;
        }
        tevent_req_done(req);
}

NTSTATUS winbindd_sid_to_uid_recv(struct tevent_req *req,
                                  struct winbindd_response *response)
{
        struct winbindd_sid_to_uid_state *state = tevent_req_data(
                req, struct winbindd_sid_to_uid_state);
        NTSTATUS status;

        if (tevent_req_is_nterror(req, &status)) {
                DEBUG(5, ("Could not convert sid %s: %s\n",
                          sid_string_dbg(&state->sid), nt_errstr(status)));
                return status;
        }
        response->data.uid = state->uid;
        return NT_STATUS_OK;
}