source3/winbindd/wb_lookupsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async lookupsid
   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 #include "../libcli/security/security.h"
  24
  25 struct wb_lookupsid_state {
  26         struct tevent_context *ev;
  27         struct winbindd_domain *lookup_domain;
  28         struct dom_sid sid;
  29         enum lsa_SidType type;
  30         const char *domname;
  31         const char *name;
  32 };
  33
  34 static void wb_lookupsid_done(struct tevent_req *subreq);
  35
  36 struct tevent_req *wb_lookupsid_send(TALLOC_CTX *mem_ctx,
  37                                      struct tevent_context *ev,
  38                                      const struct dom_sid *sid)
  39 {
  40         struct tevent_req *req, *subreq;
  41         struct wb_lookupsid_state *state;
  42         struct dom_sid_buf buf;
  43
  44         req = tevent_req_create(mem_ctx, &state, struct wb_lookupsid_state);
  45         if (req == NULL) {
  46                 return NULL;
  47         }
  48
  49         D_INFO("WB command lookupsid start.\n");
  50         sid_copy(&state->sid, sid);
  51         state->ev = ev;
  52
  53         state->lookup_domain = find_lookup_domain_from_sid(sid);
  54         if (state->lookup_domain == NULL) {
  55                 D_WARNING("Could not find domain for sid %s\n",
  56                           dom_sid_str_buf(sid, &buf));
  57                 tevent_req_nterror(req, NT_STATUS_NONE_MAPPED);
  58                 return tevent_req_post(req, ev);
  59         }
  60
  61         D_DEBUG("Looking up SID %s in domain %s.\n",
  62                 dom_sid_str_buf(&state->sid, &buf),
  63                 state->lookup_domain->name);
  64         subreq = dcerpc_wbint_LookupSid_send(
  65                 state, ev, dom_child_handle(state->lookup_domain),
  66                 &state->sid, &state->type, &state->domname, &state->name);
  67         if (tevent_req_nomem(subreq, req)) {
  68                 return tevent_req_post(req, ev);
  69         }
  70         tevent_req_set_callback(subreq, wb_lookupsid_done, req);
  71         return req;
  72 }
  73
  74 static void wb_lookupsid_done(struct tevent_req *subreq)
  75 {
  76         struct tevent_req *req = tevent_req_callback_data(
  77                 subreq, struct tevent_req);
  78         struct wb_lookupsid_state *state = tevent_req_data(
  79                 req, struct wb_lookupsid_state);
  80         NTSTATUS status, result;
  81
  82         status = dcerpc_wbint_LookupSid_recv(subreq, state, &result);
  83         TALLOC_FREE(subreq);
  84         if (any_nt_status_not_ok(status, result, &status)) {
  85                 tevent_req_nterror(req, status);
  86                 return;
  87         }
  88         tevent_req_done(req);
  89 }
  90
  91 NTSTATUS wb_lookupsid_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
  92                            enum lsa_SidType *type, const char **domain,
  93                            const char **name)
  94 {
  95         struct wb_lookupsid_state *state = tevent_req_data(
  96                 req, struct wb_lookupsid_state);
  97         NTSTATUS status;
  98         struct dom_sid_buf buf;
  99
 100         D_INFO("WB command lookupsid end.\n");
 101         if (tevent_req_is_nterror(req, &status)) {
 102                 D_WARNING("Failed with %s.\n", nt_errstr(status));
 103                 return status;
 104         }
 105         *type = state->type;
 106         *domain = talloc_move(mem_ctx, &state->domname);
 107         *name = talloc_move(mem_ctx, &state->name);
 108         D_INFO("SID %s has name '%s' with type '%d' in domain '%s'.\n",
 109                dom_sid_str_buf(&state->sid, &buf),
 110                *name,
 111                *type,
 112                *domain);
 113         return NT_STATUS_OK;
 114 }