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/cli_wbint.h"
  23
  24 struct wb_getpwsid_state {
  25         struct winbindd_domain *user_domain;
  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         state->user_domain = find_domain_from_sid_noinit(user_sid);
  53         if (state->user_domain == NULL) {
  54                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  55                 return tevent_req_post(req, ev);
  56         }
  57
  58         subreq = wb_queryuser_send(state, ev, &state->sid);
  59         if (tevent_req_nomem(subreq, req)) {
  60                 return tevent_req_post(req, ev);
  61         }
  62         tevent_req_set_callback(subreq, wb_getpwsid_queryuser_done, req);
  63         return req;
  64 }
  65
  66 static void wb_getpwsid_queryuser_done(struct tevent_req *subreq)
  67 {
  68         struct tevent_req *req = tevent_req_callback_data(
  69                 subreq, struct tevent_req);
  70         struct wb_getpwsid_state *state = tevent_req_data(
  71                 req, struct wb_getpwsid_state);
  72         NTSTATUS status;
  73
  74         status = wb_queryuser_recv(subreq, state, &state->userinfo);
  75         TALLOC_FREE(subreq);
  76         if (!NT_STATUS_IS_OK(status)) {
  77                 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 (!NT_STATUS_IS_OK(status)) {
 121                 tevent_req_nterror(req, status);
 122                 return;
 123         }
 124         subreq = wb_fill_pwent_send(state, state->ev, state->userinfo,
 125                                     state->pw);
 126         if (tevent_req_nomem(subreq, req)) {
 127                 return;
 128         }
 129         tevent_req_set_callback(subreq, wb_getpwsid_done, req);
 130 }
 131
 132 static void wb_getpwsid_done(struct tevent_req *subreq)
 133 {
 134         struct tevent_req *req = tevent_req_callback_data(
 135                 subreq, struct tevent_req);
 136         NTSTATUS status;
 137
 138         status = wb_fill_pwent_recv(subreq);
 139         if (!NT_STATUS_IS_OK(status)) {
 140                 tevent_req_nterror(req, status);
 141                 return;
 142         }
 143         tevent_req_done(req);
 144 }
 145
 146 NTSTATUS wb_getpwsid_recv(struct tevent_req *req)
 147 {
 148         NTSTATUS status;
 149
 150         if (tevent_req_is_nterror(req, &status)) {
 151                 return status;
 152         }
 153         return NT_STATUS_OK;
 154 }