source3/winbindd/winbindd_list_users.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_LIST_USERS
   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
  24 struct winbindd_list_users_domstate {
  25         struct tevent_req *subreq;
  26         struct winbindd_domain *domain;
  27         struct wbint_userinfos users;
  28 };
  29
  30 struct winbindd_list_users_state {
  31         int num_received;
  32         /* All domains */
  33         int num_domains;
  34         struct winbindd_list_users_domstate *domains;
  35 };
  36
  37 static void winbindd_list_users_done(struct tevent_req *subreq);
  38
  39 struct tevent_req *winbindd_list_users_send(TALLOC_CTX *mem_ctx,
  40                                             struct tevent_context *ev,
  41                                             struct winbindd_cli_state *cli,
  42                                             struct winbindd_request *request)
  43 {
  44         struct tevent_req *req;
  45         struct winbindd_list_users_state *state;
  46         struct winbindd_domain *domain;
  47         int i;
  48
  49         req = tevent_req_create(mem_ctx, &state,
  50                                 struct winbindd_list_users_state);
  51         if (req == NULL) {
  52                 return NULL;
  53         }
  54
  55         /* Ensure null termination */
  56         request->domain_name[sizeof(request->domain_name)-1]='\0';
  57
  58         DEBUG(3, ("list_users %s\n", request->domain_name));
  59
  60         if (request->domain_name[0] != '\0') {
  61                 state->num_domains = 1;
  62         } else {
  63                 state->num_domains = 0;
  64                 for (domain = domain_list(); domain; domain = domain->next) {
  65                         state->num_domains += 1;
  66                 }
  67         }
  68
  69         state->domains = talloc_array(state,
  70                                       struct winbindd_list_users_domstate,
  71                                       state->num_domains);
  72         if (tevent_req_nomem(state->domains, req)) {
  73                 return tevent_req_post(req, ev);
  74         }
  75
  76         if (request->domain_name[0] != '\0') {
  77                 state->domains[0].domain = find_domain_from_name_noinit(
  78                         request->domain_name);
  79                 if (state->domains[0].domain == NULL) {
  80                         tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
  81                         return tevent_req_post(req, ev);
  82                 }
  83         } else {
  84                 i = 0;
  85                 for (domain = domain_list(); domain; domain = domain->next) {
  86                         state->domains[i++].domain = domain;
  87                 }
  88         }
  89
  90         for (i=0; i<state->num_domains; i++) {
  91                 struct winbindd_list_users_domstate *d = &state->domains[i];
  92
  93                 d->subreq = dcerpc_wbint_QueryUserList_send(
  94                         state->domains, ev, dom_child_handle(d->domain),
  95                         &d->users);
  96                 if (tevent_req_nomem(d->subreq, req)) {
  97                         TALLOC_FREE(state->domains);
  98                         return tevent_req_post(req, ev);
  99                 }
 100                 tevent_req_set_callback(d->subreq, winbindd_list_users_done,
 101                                         req);
 102         }
 103         state->num_received = 0;
 104         return req;
 105 }
 106
 107 static void winbindd_list_users_done(struct tevent_req *subreq)
 108 {
 109         struct tevent_req *req = tevent_req_callback_data(
 110                 subreq, struct tevent_req);
 111         struct winbindd_list_users_state *state = tevent_req_data(
 112                 req, struct winbindd_list_users_state);
 113         NTSTATUS status, result;
 114         int i;
 115
 116         status = dcerpc_wbint_QueryUserList_recv(subreq, state->domains,
 117                                                  &result);
 118
 119         for (i=0; i<state->num_domains; i++) {
 120                 if (subreq == state->domains[i].subreq) {
 121                         break;
 122                 }
 123         }
 124         if (i < state->num_domains) {
 125                 struct winbindd_list_users_domstate *d = &state->domains[i];
 126
 127                 DEBUG(10, ("Domain %s returned %d users\n", d->domain->name,
 128                            d->users.num_userinfos));
 129
 130                 d->subreq = NULL;
 131
 132                 if (!NT_STATUS_IS_OK(status) || !NT_STATUS_IS_OK(result)) {
 133                         DEBUG(10, ("List_users for domain %s failed\n",
 134                                    d->domain->name));
 135                         d->users.num_userinfos = 0;
 136                 }
 137         }
 138
 139         TALLOC_FREE(subreq);
 140
 141         state->num_received += 1;
 142
 143         if (state->num_received >= state->num_domains) {
 144                 tevent_req_done(req);
 145         }
 146 }
 147
 148 NTSTATUS winbindd_list_users_recv(struct tevent_req *req,
 149                                   struct winbindd_response *response)
 150 {
 151         struct winbindd_list_users_state *state = tevent_req_data(
 152                 req, struct winbindd_list_users_state);
 153         NTSTATUS status;
 154         char *result;
 155         int i;
 156         uint32_t j;
 157         size_t len;
 158
 159         if (tevent_req_is_nterror(req, &status)) {
 160                 return status;
 161         }
 162
 163         len = 0;
 164         response->data.num_entries = 0;
 165         for (i=0; i<state->num_domains; i++) {
 166                 struct winbindd_list_users_domstate *d = &state->domains[i];
 167
 168                 for (j=0; j<d->users.num_userinfos; j++) {
 169                         fstring name;
 170                         fill_domain_username(name, d->domain->name,
 171                                              d->users.userinfos[j].acct_name,
 172                                              True);
 173                         len += strlen(name)+1;
 174                 }
 175                 response->data.num_entries += d->users.num_userinfos;
 176         }
 177
 178         result = talloc_array(response, char, len+1);
 179         if (result == 0) {
 180                 return NT_STATUS_NO_MEMORY;
 181         }
 182
 183         len = 0;
 184         for (i=0; i<state->num_domains; i++) {
 185                 struct winbindd_list_users_domstate *d = &state->domains[i];
 186
 187                 for (j=0; j<d->users.num_userinfos; j++) {
 188                         fstring name;
 189                         size_t this_len;
 190                         fill_domain_username(name, d->domain->name,
 191                                              d->users.userinfos[j].acct_name,
 192                                              True);
 193                         this_len = strlen(name);
 194                         memcpy(result+len, name, this_len);
 195                         len += this_len;
 196                         result[len] = ',';
 197                         len += 1;
 198                 }
 199         }
 200         result[len-1] = '\0';
 201
 202         response->extra_data.data = result;
 203         response->length += len;
 204
 205         return NT_STATUS_OK;
 206 }