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