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 winbindd_domain *user_domain;
  27         struct tevent_context *ev;
  28         struct dom_sid sid;
  29         struct wbint_userinfo *userinfo;
  30         struct winbindd_pw *pw;
  31 };
  32
  33 static void wb_getpwsid_queryuser_done(struct tevent_req *subreq);
  34 static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq);
  35 static void wb_getpwsid_done(struct tevent_req *subreq);
  36
  37 struct tevent_req *wb_getpwsid_send(TALLOC_CTX *mem_ctx,
  38                                     struct tevent_context *ev,
  39                                     const struct dom_sid *user_sid,
  40                                     struct winbindd_pw *pw)
  41 {
  42         struct tevent_req *req, *subreq;
  43         struct wb_getpwsid_state *state;
  44
  45         req = tevent_req_create(mem_ctx, &state, struct wb_getpwsid_state);
  46         if (req == NULL) {
  47                 return NULL;
  48         }
  49         sid_copy(&state->sid, user_sid);
  50         state->ev = ev;
  51         state->pw = pw;
  52
  53         state->user_domain = find_domain_from_sid_noinit(user_sid);
  54         if (state->user_domain == NULL) {
  55                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  56                 return tevent_req_post(req, ev);
  57         }
  58
  59         subreq = wb_queryuser_send(state, ev, &state->sid);
  60         if (tevent_req_nomem(subreq, req)) {
  61                 return tevent_req_post(req, ev);
  62         }
  63         tevent_req_set_callback(subreq, wb_getpwsid_queryuser_done, req);
  64         return req;
  65 }
  66
  67 static void wb_getpwsid_queryuser_done(struct tevent_req *subreq)
  68 {
  69         struct tevent_req *req = tevent_req_callback_data(
  70                 subreq, struct tevent_req);
  71         struct wb_getpwsid_state *state = tevent_req_data(
  72                 req, struct wb_getpwsid_state);
  73         NTSTATUS status;
  74
  75         status = wb_queryuser_recv(subreq, state, &state->userinfo);
  76         TALLOC_FREE(subreq);
  77         if (tevent_req_nterror(req, status)) {
  78                 return;
  79         }
  80
  81         if ((state->userinfo->acct_name != NULL)
  82             && (state->userinfo->acct_name[0] != '\0')) {
  83                 /*
  84                  * QueryUser got us a name, let's got directly to the
  85                  * fill_pwent step
  86                  */
  87                 subreq = wb_fill_pwent_send(state, state->ev, state->userinfo,
  88                                             state->pw);
  89                 if (tevent_req_nomem(subreq, req)) {
  90                         return;
  91                 }
  92                 tevent_req_set_callback(subreq, wb_getpwsid_done, req);
  93                 return;
  94         }
  95
  96         /*
  97          * QueryUser didn't get us a name, do it via LSA.
  98          */
  99         subreq = wb_lookupsid_send(state, state->ev,
 100                                    &state->userinfo->user_sid);
 101         if (tevent_req_nomem(subreq, req)) {
 102                 return;
 103         }
 104         tevent_req_set_callback(subreq, wb_getpwsid_lookupsid_done, req);
 105 }
 106
 107 static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq)
 108 {
 109         struct tevent_req *req = tevent_req_callback_data(
 110                 subreq, struct tevent_req);
 111         struct wb_getpwsid_state *state = tevent_req_data(
 112                 req, struct wb_getpwsid_state);
 113         NTSTATUS status;
 114         enum lsa_SidType type;
 115         const char *domain;
 116
 117         status = wb_lookupsid_recv(subreq, state->userinfo, &type, &domain,
 118                                    &state->userinfo->acct_name);
 119         TALLOC_FREE(subreq);
 120         if (tevent_req_nterror(req, status)) {
 121                 return;
 122         }
 123         subreq = wb_fill_pwent_send(state, state->ev, state->userinfo,
 124                                     state->pw);
 125         if (tevent_req_nomem(subreq, req)) {
 126                 return;
 127         }
 128         tevent_req_set_callback(subreq, wb_getpwsid_done, req);
 129 }
 130
 131 static void wb_getpwsid_done(struct tevent_req *subreq)
 132 {
 133         struct tevent_req *req = tevent_req_callback_data(
 134                 subreq, struct tevent_req);
 135         NTSTATUS status;
 136
 137         status = wb_fill_pwent_recv(subreq);
 138         if (tevent_req_nterror(req, status)) {
 139                 return;
 140         }
 141         tevent_req_done(req);
 142 }
 143
 144 NTSTATUS wb_getpwsid_recv(struct tevent_req *req)
 145 {
 146         NTSTATUS status;
 147
 148         if (tevent_req_is_nterror(req, &status)) {
 149                 return status;
 150         }
 151         return NT_STATUS_OK;
 152 }