Line data    Source code

       1             : /*
       2             :    Unix SMB/CIFS implementation.
       3             :    async implementation of WINBINDD_ALLOCATE_UID
       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 winbindd_allocate_uid_state {
      25             :         struct tevent_context *ev;
      26             :         uint64_t uid;
      27             : };
      28             : 
      29             : static void winbindd_allocate_uid_initialized(struct tevent_req *subreq);
      30             : static void winbindd_allocate_uid_done(struct tevent_req *subreq);
      31             : 
      32           4 : struct tevent_req *winbindd_allocate_uid_send(TALLOC_CTX *mem_ctx,
      33             :                                               struct tevent_context *ev,
      34             :                                               struct winbindd_cli_state *cli,
      35             :                                               struct winbindd_request *request)
      36             : {
      37             :         struct tevent_req *req, *subreq;
      38             :         struct winbindd_allocate_uid_state *state;
      39             : 
      40           4 :         req = tevent_req_create(mem_ctx, &state,
      41             :                                 struct winbindd_allocate_uid_state);
      42           4 :         if (req == NULL) {
      43           0 :                 return NULL;
      44             :         }
      45           4 :         state->ev = ev;
      46             : 
      47           4 :         DEBUG(3, ("allocate_uid\n"));
      48             : 
      49           4 :         subreq = wb_parent_idmap_setup_send(state, ev);
      50           4 :         if (tevent_req_nomem(subreq, req)) {
      51           0 :                 return tevent_req_post(req, ev);
      52             :         }
      53           4 :         tevent_req_set_callback(subreq, winbindd_allocate_uid_initialized, req);
      54           4 :         return req;
      55             : }
      56             : 
      57           4 : static void winbindd_allocate_uid_initialized(struct tevent_req *subreq)
      58             : {
      59           4 :         struct tevent_req *req = tevent_req_callback_data(
      60             :                 subreq, struct tevent_req);
      61           4 :         struct dcerpc_binding_handle *child_binding_handle = NULL;
      62           4 :         struct winbindd_allocate_uid_state *state = tevent_req_data(
      63             :                 req, struct winbindd_allocate_uid_state);
      64           4 :         const struct wb_parent_idmap_config *cfg = NULL;
      65             :         NTSTATUS status;
      66             : 
      67           4 :         status = wb_parent_idmap_setup_recv(subreq, &cfg);
      68           4 :         TALLOC_FREE(subreq);
      69           4 :         if (tevent_req_nterror(req, status)) {
      70           0 :                 return;
      71             :         }
      72           4 :         if (cfg->num_doms == 0) {
      73             :                 /*
      74             :                  * idmap_tdb also returns UNSUCCESSFUL if a range is full
      75             :                  */
      76           0 :                 tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
      77           0 :                 return;
      78             :         }
      79             : 
      80           4 :         child_binding_handle = idmap_child_handle();
      81             : 
      82           4 :         subreq = dcerpc_wbint_AllocateUid_send(state,
      83             :                                                state->ev,
      84             :                                                child_binding_handle,
      85             :                                                &state->uid);
      86           4 :         if (tevent_req_nomem(subreq, req)) {
      87           0 :                 return;
      88             :         }
      89           4 :         tevent_req_set_callback(subreq, winbindd_allocate_uid_done, req);
      90             : }
      91             : 
      92           4 : static void winbindd_allocate_uid_done(struct tevent_req *subreq)
      93             : {
      94           4 :         struct tevent_req *req = tevent_req_callback_data(
      95             :                 subreq, struct tevent_req);
      96           4 :         struct winbindd_allocate_uid_state *state = tevent_req_data(
      97             :                 req, struct winbindd_allocate_uid_state);
      98             :         NTSTATUS status, result;
      99             : 
     100           4 :         status = dcerpc_wbint_AllocateUid_recv(subreq, state, &result);
     101           4 :         TALLOC_FREE(subreq);
     102           4 :         if (any_nt_status_not_ok(status, result, &status)) {
     103           2 :                 tevent_req_nterror(req, status);
     104           2 :                 return;
     105             :         }
     106           2 :         tevent_req_done(req);
     107             : }
     108             : 
     109           4 : NTSTATUS winbindd_allocate_uid_recv(struct tevent_req *req,
     110             :                                     struct winbindd_response *response)
     111             : {
     112           4 :         struct winbindd_allocate_uid_state *state = tevent_req_data(
     113             :                 req, struct winbindd_allocate_uid_state);
     114             :         NTSTATUS status;
     115             : 
     116           4 :         if (tevent_req_is_nterror(req, &status)) {
     117           2 :                 DEBUG(5, ("Could not allocate uid: %s\n", nt_errstr(status)));
     118           2 :                 return status;
     119             :         }
     120           2 :         response->data.uid = state->uid;
     121           2 :         return NT_STATUS_OK;
     122             : }