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
  53         if (state->gstate->next_group >= state->gstate->num_groups) {
  54                 TALLOC_FREE(state->gstate->groups);
  55
  56                 if (state->gstate->domain == NULL) {
  57                         state->gstate->domain = domain_list();
  58                 } else {
  59                         state->gstate->domain = state->gstate->domain->next;
  60                 }
  61
  62                 if ((state->gstate->domain != NULL)
  63                     && sid_check_is_domain(&state->gstate->domain->sid)) {
  64                         state->gstate->domain = state->gstate->domain->next;
  65                 }
  66
  67                 if (state->gstate->domain == NULL) {
  68                         tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
  69                         return tevent_req_post(req, ev);
  70                 }
  71                 subreq = rpccli_wbint_QueryGroupList_send(
  72                         state, state->ev, state->gstate->domain->child.rpccli,
  73                         &state->next_groups);
  74                 if (tevent_req_nomem(subreq, req)) {
  75                         return tevent_req_post(req, ev);
  76                 }
  77                 tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
  78                 return req;
  79         }
  80
  81         subreq = wb_getgrsid_send(
  82                 state, state->ev,
  83                 &state->gstate->groups[state->gstate->next_group].sid,
  84                 state->max_nesting);
  85         if (tevent_req_nomem(subreq, req)) {
  86                 return tevent_req_post(req, ev);
  87         }
  88         tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
  89         return req;
  90 }
  91
  92 static void wb_next_grent_fetch_done(struct tevent_req *subreq)
  93 {
  94         struct tevent_req *req = tevent_req_callback_data(
  95                 subreq, struct tevent_req);
  96         struct wb_next_grent_state *state = tevent_req_data(
  97                 req, struct wb_next_grent_state);
  98         NTSTATUS status, result;
  99
 100         status = rpccli_wbint_QueryGroupList_recv(subreq, state, &result);
 101         TALLOC_FREE(subreq);
 102         if (!NT_STATUS_IS_OK(status) || !NT_STATUS_IS_OK(result)) {
 103                 /* Ignore errors here, just log it */
 104                 DEBUG(10, ("query_user_list for domain %s returned %s/%s\n",
 105                            state->gstate->domain->name,
 106                            nt_errstr(status), nt_errstr(result)));
 107                 tevent_req_nterror(req, result);
 108                 return;
 109         }
 110
 111         state->gstate->num_groups = state->next_groups.num_principals;
 112         state->gstate->groups = talloc_move(
 113                 state->gstate, &state->next_groups.principals);
 114
 115         if (state->gstate->num_groups == 0) {
 116                 state->gstate->domain = state->gstate->domain->next;
 117
 118                 if ((state->gstate->domain != NULL)
 119                     && sid_check_is_domain(&state->gstate->domain->sid)) {
 120                         state->gstate->domain = state->gstate->domain->next;
 121                 }
 122
 123                 if (state->gstate->domain == NULL) {
 124                         tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
 125                         return;
 126                 }
 127                 subreq = rpccli_wbint_QueryGroupList_send(
 128                         state, state->ev, state->gstate->domain->child.rpccli,
 129                         &state->next_groups);
 130                 if (tevent_req_nomem(subreq, req)) {
 131                         return;
 132                 }
 133                 tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
 134                 return;
 135         }
 136
 137         state->gstate->next_group = 0;
 138
 139         subreq = wb_getgrsid_send(
 140                 state, state->ev,
 141                 &state->gstate->groups[state->gstate->next_group].sid,
 142                 state->max_nesting);
 143         if (tevent_req_nomem(subreq, req)) {
 144                 return;
 145         }
 146         tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
 147         return;
 148 }
 149
 150 static void wb_next_grent_getgrsid_done(struct tevent_req *subreq)
 151 {
 152         struct tevent_req *req = tevent_req_callback_data(
 153                 subreq, struct tevent_req);
 154         struct wb_next_grent_state *state = tevent_req_data(
 155                 req, struct wb_next_grent_state);
 156         const char *domname, *name;
 157         NTSTATUS status;
 158
 159         status = wb_getgrsid_recv(subreq, talloc_tos(), &domname, &name,
 160                                   &state->gr->gr_gid, &state->members);
 161         TALLOC_FREE(subreq);
 162         if (!NT_STATUS_IS_OK(status)) {
 163                 tevent_req_nterror(req, status);
 164                 return;
 165         }
 166         if (!fill_grent(talloc_tos(), state->gr, domname, name,
 167                         state->gr->gr_gid)) {
 168                 DEBUG(5, ("fill_grent failed\n"));
 169                 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
 170                 return;
 171         }
 172         state->gstate->next_group += 1;
 173         tevent_req_done(req);
 174 }
 175
 176 NTSTATUS wb_next_grent_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 177                             struct talloc_dict **members)
 178 {
 179         struct wb_next_grent_state *state = tevent_req_data(
 180                 req, struct wb_next_grent_state);
 181         NTSTATUS status;
 182
 183         if (tevent_req_is_nterror(req, &status)) {
 184                 return status;
 185         }
 186         *members = talloc_move(mem_ctx, &state->members);
 187         return NT_STATUS_OK;
 188 }