source3/winbindd/wb_next_grent.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async next_grent
   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_next_grent_state {
  25         struct tevent_context *ev;
  26         int max_nesting;
  27         struct getgrent_state *gstate;
  28         struct wbint_Principals next_groups;
  29         struct winbindd_gr *gr;
  30         struct talloc_dict *members;
  31 };
  32
  33 static void wb_next_grent_fetch_done(struct tevent_req *subreq);
  34 static void wb_next_grent_getgrsid_done(struct tevent_req *subreq);
  35
  36 struct tevent_req *wb_next_grent_send(TALLOC_CTX *mem_ctx,
  37                                       struct tevent_context *ev,
  38                                       int max_nesting,
  39                                       struct getgrent_state *gstate,
  40                                       struct winbindd_gr *gr)
  41 {
  42         struct tevent_req *req, *subreq;
  43         struct wb_next_grent_state *state;
  44
  45         req = tevent_req_create(mem_ctx, &state, struct wb_next_grent_state);
  46         if (req == NULL) {
  47                 return NULL;
  48         }
  49         state->ev = ev;
  50         state->gstate = gstate;
  51         state->gr = gr;
  52         state->max_nesting = max_nesting;
  53
  54         if (state->gstate->next_group >= state->gstate->num_groups) {
  55                 TALLOC_FREE(state->gstate->groups);
  56
  57                 if (state->gstate->domain == NULL) {
  58                         state->gstate->domain = domain_list();
  59                 } else {
  60                         state->gstate->domain = state->gstate->domain->next;
  61                 }
  62
  63                 if ((state->gstate->domain != NULL)
  64                     && sid_check_is_domain(&state->gstate->domain->sid)) {
  65                         state->gstate->domain = state->gstate->domain->next;
  66                 }
  67
  68                 if (state->gstate->domain == NULL) {
  69                         tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
  70                         return tevent_req_post(req, ev);
  71                 }
  72                 subreq = dcerpc_wbint_QueryGroupList_send(
  73                         state, state->ev, state->gstate->domain->child.binding_handle,
  74                         &state->next_groups);
  75                 if (tevent_req_nomem(subreq, req)) {
  76                         return tevent_req_post(req, ev);
  77                 }
  78                 tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
  79                 return req;
  80         }
  81
  82         subreq = wb_getgrsid_send(
  83                 state, state->ev,
  84                 &state->gstate->groups[state->gstate->next_group].sid,
  85                 state->max_nesting);
  86         if (tevent_req_nomem(subreq, req)) {
  87                 return tevent_req_post(req, ev);
  88         }
  89         tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
  90         return req;
  91 }
  92
  93 static void wb_next_grent_fetch_done(struct tevent_req *subreq)
  94 {
  95         struct tevent_req *req = tevent_req_callback_data(
  96                 subreq, struct tevent_req);
  97         struct wb_next_grent_state *state = tevent_req_data(
  98                 req, struct wb_next_grent_state);
  99         NTSTATUS status, result;
 100
 101         status = dcerpc_wbint_QueryGroupList_recv(subreq, state, &result);
 102         TALLOC_FREE(subreq);
 103         if (!NT_STATUS_IS_OK(status)) {
 104                 /* Ignore errors here, just log it */
 105                 DEBUG(10, ("query_user_list for domain %s returned %s\n",
 106                            state->gstate->domain->name,
 107                            nt_errstr(status)));
 108                 tevent_req_nterror(req, status);
 109                 return;
 110         }
 111         if (!NT_STATUS_IS_OK(result)) {
 112                 /* Ignore errors here, just log it */
 113                 DEBUG(10, ("query_user_list for domain %s returned %s/%s\n",
 114                            state->gstate->domain->name,
 115                            nt_errstr(status), nt_errstr(result)));
 116                 tevent_req_nterror(req, result);
 117                 return;
 118         }
 119
 120         state->gstate->num_groups = state->next_groups.num_principals;
 121         state->gstate->groups = talloc_move(
 122                 state->gstate, &state->next_groups.principals);
 123
 124         if (state->gstate->num_groups == 0) {
 125                 state->gstate->domain = state->gstate->domain->next;
 126
 127                 if ((state->gstate->domain != NULL)
 128                     && sid_check_is_domain(&state->gstate->domain->sid)) {
 129                         state->gstate->domain = state->gstate->domain->next;
 130                 }
 131
 132                 if (state->gstate->domain == NULL) {
 133                         tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
 134                         return;
 135                 }
 136                 subreq = dcerpc_wbint_QueryGroupList_send(
 137                         state, state->ev, state->gstate->domain->child.binding_handle,
 138                         &state->next_groups);
 139                 if (tevent_req_nomem(subreq, req)) {
 140                         return;
 141                 }
 142                 tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
 143                 return;
 144         }
 145
 146         state->gstate->next_group = 0;
 147
 148         subreq = wb_getgrsid_send(
 149                 state, state->ev,
 150                 &state->gstate->groups[state->gstate->next_group].sid,
 151                 state->max_nesting);
 152         if (tevent_req_nomem(subreq, req)) {
 153                 return;
 154         }
 155         tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
 156         return;
 157 }
 158
 159 static void wb_next_grent_getgrsid_done(struct tevent_req *subreq)
 160 {
 161         struct tevent_req *req = tevent_req_callback_data(
 162                 subreq, struct tevent_req);
 163         struct wb_next_grent_state *state = tevent_req_data(
 164                 req, struct wb_next_grent_state);
 165         const char *domname, *name;
 166         NTSTATUS status;
 167
 168         status = wb_getgrsid_recv(subreq, talloc_tos(), &domname, &name,
 169                                   &state->gr->gr_gid, &state->members);
 170         TALLOC_FREE(subreq);
 171         if (!NT_STATUS_IS_OK(status)) {
 172                 tevent_req_nterror(req, status);
 173                 return;
 174         }
 175         if (!fill_grent(talloc_tos(), state->gr, domname, name,
 176                         state->gr->gr_gid)) {
 177                 DEBUG(5, ("fill_grent failed\n"));
 178                 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
 179                 return;
 180         }
 181         state->gstate->next_group += 1;
 182         tevent_req_done(req);
 183 }
 184
 185 NTSTATUS wb_next_grent_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 186                             struct talloc_dict **members)
 187 {
 188         struct wb_next_grent_state *state = tevent_req_data(
 189                 req, struct wb_next_grent_state);
 190         NTSTATUS status;
 191
 192         if (tevent_req_is_nterror(req, &status)) {
 193                 return status;
 194         }
 195         *members = talloc_move(mem_ctx, &state->members);
 196         return NT_STATUS_OK;
 197 }