source3/winbindd/wb_getpwsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async getpwsid
   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_wbint_c.h"
  23 #include "../libcli/security/security.h"
  24
  25 struct wb_getpwsid_state {
  26         struct tevent_context *ev;
  27         struct dom_sid sid;
  28         struct wbint_userinfo *userinfo;
  29         struct winbindd_pw *pw;
  30 };
  31
  32 static void wb_getpwsid_queryuser_done(struct tevent_req *subreq);
  33 static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq);
  34 static void wb_getpwsid_done(struct tevent_req *subreq);
  35
  36 struct tevent_req *wb_getpwsid_send(TALLOC_CTX *mem_ctx,
  37                                     struct tevent_context *ev,
  38                                     const struct dom_sid *user_sid,
  39                                     struct winbindd_pw *pw)
  40 {
  41         struct tevent_req *req, *subreq;
  42         struct wb_getpwsid_state *state;
  43
  44         req = tevent_req_create(mem_ctx, &state, struct wb_getpwsid_state);
  45         if (req == NULL) {
  46                 return NULL;
  47         }
  48         sid_copy(&state->sid, user_sid);
  49         state->ev = ev;
  50         state->pw = pw;
  51
  52         subreq = wb_queryuser_send(state, ev, &state->sid);
  53         if (tevent_req_nomem(subreq, req)) {
  54                 return tevent_req_post(req, ev);
  55         }
  56         tevent_req_set_callback(subreq, wb_getpwsid_queryuser_done, req);
  57         return req;
  58 }
  59
  60 static void wb_getpwsid_queryuser_done(struct tevent_req *subreq)
  61 {
  62         struct tevent_req *req = tevent_req_callback_data(
  63                 subreq, struct tevent_req);
  64         struct wb_getpwsid_state *state = tevent_req_data(
  65                 req, struct wb_getpwsid_state);
  66         NTSTATUS status;
  67
  68         status = wb_queryuser_recv(subreq, state, &state->userinfo);
  69         TALLOC_FREE(subreq);
  70         if (tevent_req_nterror(req, status)) {
  71                 return;
  72         }
  73
  74         if ((state->userinfo->acct_name != NULL)
  75             && (state->userinfo->acct_name[0] != '\0')) {
  76                 /*
  77                  * QueryUser got us a name, let's got directly to the
  78                  * fill_pwent step
  79                  */
  80                 subreq = wb_fill_pwent_send(state, state->ev, state->userinfo,
  81                                             state->pw);
  82                 if (tevent_req_nomem(subreq, req)) {
  83                         return;
  84                 }
  85                 tevent_req_set_callback(subreq, wb_getpwsid_done, req);
  86                 return;
  87         }
  88
  89         /*
  90          * QueryUser didn't get us a name, do it via LSA.
  91          */
  92         subreq = wb_lookupsid_send(state, state->ev,
  93                                    &state->userinfo->user_sid);
  94         if (tevent_req_nomem(subreq, req)) {
  95                 return;
  96         }
  97         tevent_req_set_callback(subreq, wb_getpwsid_lookupsid_done, req);
  98 }
  99
 100 static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq)
 101 {
 102         struct tevent_req *req = tevent_req_callback_data(
 103                 subreq, struct tevent_req);
 104         struct wb_getpwsid_state *state = tevent_req_data(
 105                 req, struct wb_getpwsid_state);
 106         NTSTATUS status;
 107         enum lsa_SidType type;
 108         const char *domain;
 109
 110         status = wb_lookupsid_recv(subreq, state->userinfo, &type, &domain,
 111                                    &state->userinfo->acct_name);
 112         TALLOC_FREE(subreq);
 113         if (tevent_req_nterror(req, status)) {
 114                 return;
 115         }
 116         subreq = wb_fill_pwent_send(state, state->ev, state->userinfo,
 117                                     state->pw);
 118         if (tevent_req_nomem(subreq, req)) {
 119                 return;
 120         }
 121         tevent_req_set_callback(subreq, wb_getpwsid_done, req);
 122 }
 123
 124 static void wb_getpwsid_done(struct tevent_req *subreq)
 125 {
 126         struct tevent_req *req = tevent_req_callback_data(
 127                 subreq, struct tevent_req);
 128         NTSTATUS status;
 129
 130         status = wb_fill_pwent_recv(subreq);
 131         if (tevent_req_nterror(req, status)) {
 132                 return;
 133         }
 134         tevent_req_done(req);
 135 }
 136
 137 NTSTATUS wb_getpwsid_recv(struct tevent_req *req)
 138 {
 139         return tevent_req_simple_recv_ntstatus(req);
 140 }