source3/winbindd/wb_lookupname.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async lookupname
   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_lookupname_state {
  26         struct tevent_context *ev;
  27         const char *dom_name;
  28         const char *name;
  29         uint32_t flags;
  30         struct dom_sid sid;
  31         enum lsa_SidType type;
  32 };
  33
  34 static void wb_lookupname_done(struct tevent_req *subreq);
  35
  36 struct tevent_req *wb_lookupname_send(TALLOC_CTX *mem_ctx,
  37                                       struct tevent_context *ev,
  38                                       const char *namespace,
  39                                       const char *dom_name,
  40                                       const char *name,
  41                                       uint32_t flags)
  42 {
  43         struct tevent_req *req, *subreq;
  44         struct wb_lookupname_state *state;
  45         struct winbindd_domain *domain;
  46
  47         req = tevent_req_create(mem_ctx, &state, struct wb_lookupname_state);
  48         if (req == NULL) {
  49                 return NULL;
  50         }
  51
  52         D_INFO("WB command lookupname start.\n"
  53                "Search namespace '%s' and domain '%s' for name '%s'.\n",
  54                 namespace, dom_name, name);
  55         state->ev = ev;
  56         state->flags = flags;
  57
  58         /*
  59          * Uppercase domain and name so that we become cache-friendly
  60          */
  61         state->dom_name = talloc_strdup_upper(state, dom_name);
  62         if (tevent_req_nomem(state->dom_name, req)) {
  63                 return tevent_req_post(req, ev);
  64         }
  65         state->name = talloc_strdup_upper(state, name);
  66         if (tevent_req_nomem(state->name, req)) {
  67                 return tevent_req_post(req, ev);
  68         }
  69
  70         domain = find_lookup_domain_from_name(namespace);
  71         if (domain == NULL) {
  72                 D_WARNING("Could not find domain for %s\n", namespace);
  73                 tevent_req_nterror(req, NT_STATUS_NONE_MAPPED);
  74                 return tevent_req_post(req, ev);
  75         }
  76
  77         subreq = dcerpc_wbint_LookupName_send(
  78                 state, ev, dom_child_handle(domain),
  79                 state->dom_name, state->name,
  80                 flags, &state->type, &state->sid);
  81         if (tevent_req_nomem(subreq, req)) {
  82                 return tevent_req_post(req, ev);
  83         }
  84         tevent_req_set_callback(subreq, wb_lookupname_done, req);
  85         return req;
  86 }
  87
  88 static void wb_lookupname_done(struct tevent_req *subreq)
  89 {
  90         struct tevent_req *req = tevent_req_callback_data(
  91                 subreq, struct tevent_req);
  92         struct wb_lookupname_state *state = tevent_req_data(
  93                 req, struct wb_lookupname_state);
  94         NTSTATUS status, result;
  95
  96         status = dcerpc_wbint_LookupName_recv(subreq, state, &result);
  97         TALLOC_FREE(subreq);
  98         if (any_nt_status_not_ok(status, result, &status)) {
  99                 tevent_req_nterror(req, status);
 100                 return;
 101         }
 102         tevent_req_done(req);
 103 }
 104
 105 NTSTATUS wb_lookupname_recv(struct tevent_req *req, struct dom_sid *sid,
 106                             enum lsa_SidType *type)
 107 {
 108         struct wb_lookupname_state *state = tevent_req_data(
 109                 req, struct wb_lookupname_state);
 110         NTSTATUS status;
 111         struct dom_sid_buf buf;
 112
 113         if (tevent_req_is_nterror(req, &status)) {
 114                 return status;
 115         }
 116         sid_copy(sid, &state->sid);
 117         *type = state->type;
 118         D_INFO("WB command lookupname end.\n"
 119                "Found SID %s with SID type %d.\n",
 120                dom_sid_str_buf(sid, &buf),
 121                *type);
 122         return NT_STATUS_OK;
 123 }