source3/winbindd/winbindd_allocate_gid.c

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