source: trunk/server/source3/winbindd/winbindd_lookupname.c

/*
   Unix SMB/CIFS implementation.
   async implementation of WINBINDD_LOOKUPNAME
   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"

struct winbindd_lookupname_state {
        struct tevent_context *ev;
        struct dom_sid sid;
        enum lsa_SidType type;
};

static void winbindd_lookupname_done(struct tevent_req *subreq);

struct tevent_req *winbindd_lookupname_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_lookupname_state *state;
        char *domname, *name, *p;

        req = tevent_req_create(mem_ctx, &state,
                                struct winbindd_lookupname_state);
        if (req == NULL) {
                return NULL;
        }
        state->ev = ev;

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

        /* cope with the name being a fully qualified name */
        p = strstr(request->data.name.name, lp_winbind_separator());
        if (p) {
                *p = 0;
                domname = request->data.name.name;
                name = p+1;
        } else if ((p = strchr(request->data.name.name, '@')) != NULL) {
                /* upn */
                domname = p + 1;
                *p = 0;
                name = request->data.name.name;
        } else {
                domname = request->data.name.dom_name;
                name = request->data.name.name;
        }

        DEBUG(3, ("lookupname %s%s%s\n", domname, lp_winbind_separator(),
                  name));

        subreq = wb_lookupname_send(state, ev, domname, name, 0);
        if (tevent_req_nomem(subreq, req)) {
                return tevent_req_post(req, ev);
        }
        tevent_req_set_callback(subreq, winbindd_lookupname_done, req);
        return req;
}

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

        status = wb_lookupname_recv(subreq, &state->sid, &state->type);
        TALLOC_FREE(subreq);
        if (tevent_req_nterror(req, status)) {
                return;
        }
        tevent_req_done(req);
}

NTSTATUS winbindd_lookupname_recv(struct tevent_req *req,
                                  struct winbindd_response *response)
{
        struct winbindd_lookupname_state *state = tevent_req_data(
                req, struct winbindd_lookupname_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;
        }
        sid_to_fstring(response->data.sid.sid, &state->sid);
        response->data.sid.type = state->type;
        return NT_STATUS_OK;
}