Line data    Source code

       1             : /*
       2             :    Unix SMB/CIFS implementation.
       3             :    async seqnum
       4             :    Copyright (C) Volker Lendecke 2009
       5             : 
       6             :    This program is free software; you can redistribute it and/or modify
       7             :    it under the terms of the GNU General Public License as published by
       8             :    the Free Software Foundation; either version 3 of the License, or
       9             :    (at your option) any later version.
      10             : 
      11             :    This program is distributed in the hope that it will be useful,
      12             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             :    GNU General Public License for more details.
      15             : 
      16             :    You should have received a copy of the GNU General Public License
      17             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      18             : */
      19             : 
      20             : #include "includes.h"
      21             : #include "winbindd.h"
      22             : #include "librpc/gen_ndr/ndr_winbind_c.h"
      23             : 
      24             : struct wb_seqnum_state {
      25             :         uint32_t seqnum;
      26             : };
      27             : 
      28             : static void wb_seqnum_done(struct tevent_req *subreq);
      29             : 
      30          32 : struct tevent_req *wb_seqnum_send(TALLOC_CTX *mem_ctx,
      31             :                                   struct tevent_context *ev,
      32             :                                   struct winbindd_domain *domain)
      33             : {
      34           0 :         struct tevent_req *req, *subreq;
      35           0 :         struct wb_seqnum_state *state;
      36             : 
      37          32 :         req = tevent_req_create(mem_ctx, &state, struct wb_seqnum_state);
      38          32 :         if (req == NULL) {
      39           0 :                 return NULL;
      40             :         }
      41          32 :         subreq = dcerpc_wbint_QuerySequenceNumber_send(
      42          32 :                 state, ev, dom_child_handle(domain), &state->seqnum);
      43          32 :         if (tevent_req_nomem(subreq, req)) {
      44           0 :                 return tevent_req_post(req, ev);
      45             :         }
      46          32 :         tevent_req_set_callback(subreq, wb_seqnum_done, req);
      47          32 :         return req;
      48             : }
      49             : 
      50          32 : static void wb_seqnum_done(struct tevent_req *subreq)
      51             : {
      52          32 :         struct tevent_req *req = tevent_req_callback_data(
      53             :                 subreq, struct tevent_req);
      54          32 :         struct wb_seqnum_state *state = tevent_req_data(
      55             :                 req, struct wb_seqnum_state);
      56           0 :         NTSTATUS status, result;
      57             : 
      58          32 :         status = dcerpc_wbint_QuerySequenceNumber_recv(subreq, state, &result);
      59          32 :         TALLOC_FREE(subreq);
      60          32 :         if (any_nt_status_not_ok(status, result, &status)) {
      61           0 :                 tevent_req_nterror(req, status);
      62           0 :                 return;
      63             :         }
      64          32 :         tevent_req_done(req);
      65             : }
      66             : 
      67          32 : NTSTATUS wb_seqnum_recv(struct tevent_req *req, uint32_t *seqnum)
      68             : {
      69          32 :         struct wb_seqnum_state *state = tevent_req_data(
      70             :                 req, struct wb_seqnum_state);
      71           0 :         NTSTATUS status;
      72             : 
      73          32 :         if (tevent_req_is_nterror(req, &status)) {
      74           0 :                 return status;
      75             :         }
      76          32 :         *seqnum = state->seqnum;
      77          32 :         return NT_STATUS_OK;
      78             : }