source: vendor/3.5.8/source3/winbindd/winbindd_getsidaliases.c

/*
   Unix SMB/CIFS implementation.
   async implementation of WINBINDD_GETSIDALIASES
   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_getsidaliases_state {
        struct dom_sid sid;
        uint32_t num_aliases;
        uint32_t *aliases;
};

static void winbindd_getsidaliases_done(struct tevent_req *subreq);

struct tevent_req *winbindd_getsidaliases_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_getsidaliases_state *state;
        struct winbindd_domain *domain;
        size_t num_sids;
        struct dom_sid *sids;

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

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

        DEBUG(3, ("getsidaliases %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);
        }

        domain = find_domain_from_sid_noinit(&state->sid);
        if (domain == NULL) {
                DEBUG(1,("could not find domain entry for sid %s\n",
                         request->data.sid));
                tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
                return tevent_req_post(req, ev);
        }

        num_sids = 0;
        sids = NULL;

        if ((request->extra_data.data != NULL)
            && !parse_sidlist(state, request->extra_data.data,
                              &sids, &num_sids)) {
                DEBUG(1, ("Could not parse SID list: %s\n",
                          request->extra_data.data));
                tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
                return tevent_req_post(req, ev);
        }

        subreq = wb_lookupuseraliases_send(state, ev, domain, num_sids, sids);
        if (tevent_req_nomem(subreq, req)) {
                return tevent_req_post(req, ev);
        }
        tevent_req_set_callback(subreq, winbindd_getsidaliases_done, req);
        return req;
}

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

        status = wb_lookupuseraliases_recv(subreq, state, &state->num_aliases,
                                           &state->aliases);
        TALLOC_FREE(subreq);
        if (!NT_STATUS_IS_OK(status)) {
                tevent_req_nterror(req, status);
                return;
        }
        tevent_req_done(req);
}

NTSTATUS winbindd_getsidaliases_recv(struct tevent_req *req,
                                     struct winbindd_response *response)
{
        struct winbindd_getsidaliases_state *state = tevent_req_data(
                req, struct winbindd_getsidaliases_state);
        NTSTATUS status;
        int i;
        char *sidlist;

        if (tevent_req_is_nterror(req, &status)) {
                return status;
        }

        sidlist = talloc_strdup(response, "");
        if (sidlist == NULL) {
                return NT_STATUS_NO_MEMORY;
        }
        for (i=0; i<state->num_aliases; i++) {
                struct dom_sid sid;
                fstring tmp;
                sid_compose(&sid, &state->sid, state->aliases[i]);

                sidlist = talloc_asprintf_append_buffer(
                        sidlist, "%s\n", sid_to_fstring(tmp, &sid));
                if (sidlist == NULL) {
                        return NT_STATUS_NO_MEMORY;
                }
        }
        response->extra_data.data = sidlist;
        response->length += talloc_get_size(sidlist);
        response->data.num_entries = state->num_aliases;
        return NT_STATUS_OK;
}