source3/winbindd/winbindd_list_groups.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_LIST_GROUPS
   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_winbind_c.h"
  23
  24 struct winbindd_list_groups_domstate {
  25         struct tevent_req *subreq;
  26         struct winbindd_domain *domain;
  27         struct wbint_Principals groups;
  28 };
  29
  30 struct winbindd_list_groups_state {
  31         int num_received;
  32         /* All domains */
  33         int num_domains;
  34         struct winbindd_list_groups_domstate *domains;
  35 };
  36
  37 static void winbindd_list_groups_done(struct tevent_req *subreq);
  38
  39 struct tevent_req *winbindd_list_groups_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_groups_state *state;
  46         struct winbindd_domain *domain;
  47         int i;
  48
  49         req = tevent_req_create(mem_ctx, &state,
  50                                 struct winbindd_list_groups_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_groups %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_groups_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                 ZERO_STRUCT(state->domains[0].groups);
  78
  79                 state->domains[0].domain = find_domain_from_name_noinit(
  80                         request->domain_name);
  81                 if (state->domains[0].domain == NULL) {
  82                         tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
  83                         return tevent_req_post(req, ev);
  84                 }
  85         } else {
  86                 i = 0;
  87                 for (domain = domain_list(); domain; domain = domain->next) {
  88                         ZERO_STRUCT(state->domains[i].groups);
  89
  90                         state->domains[i].domain = domain;
  91                         i++;
  92                 }
  93         }
  94
  95         for (i=0; i<state->num_domains; i++) {
  96                 struct winbindd_list_groups_domstate *d = &state->domains[i];
  97
  98                 d->subreq = dcerpc_wbint_QueryGroupList_send(
  99                         state->domains, ev, dom_child_handle(d->domain),
 100                         &d->groups);
 101                 if (tevent_req_nomem(d->subreq, req)) {
 102                         TALLOC_FREE(state->domains);
 103                         return tevent_req_post(req, ev);
 104                 }
 105                 tevent_req_set_callback(d->subreq, winbindd_list_groups_done,
 106                                         req);
 107         }
 108         state->num_received = 0;
 109         return req;
 110 }
 111
 112 static void winbindd_list_groups_done(struct tevent_req *subreq)
 113 {
 114         struct tevent_req *req = tevent_req_callback_data(
 115                 subreq, struct tevent_req);
 116         struct winbindd_list_groups_state *state = tevent_req_data(
 117                 req, struct winbindd_list_groups_state);
 118         NTSTATUS status, result;
 119         int i;
 120
 121         status = dcerpc_wbint_QueryGroupList_recv(subreq, state->domains,
 122                                                   &result);
 123
 124         for (i=0; i<state->num_domains; i++) {
 125                 if (subreq == state->domains[i].subreq) {
 126                         break;
 127                 }
 128         }
 129         if (i < state->num_domains) {
 130                 struct winbindd_list_groups_domstate *d = &state->domains[i];
 131
 132                 DEBUG(10, ("Domain %s returned %d groups\n", d->domain->name,
 133                            d->groups.num_principals));
 134
 135                 d->subreq = NULL;
 136
 137                 if (!NT_STATUS_IS_OK(status) || !NT_STATUS_IS_OK(result)) {
 138                         DEBUG(10, ("list_groups for domain %s failed\n",
 139                                    d->domain->name));
 140                         d->groups.num_principals = 0;
 141                 }
 142         }
 143
 144         TALLOC_FREE(subreq);
 145
 146         state->num_received += 1;
 147
 148         if (state->num_received >= state->num_domains) {
 149                 tevent_req_done(req);
 150         }
 151 }
 152
 153 NTSTATUS winbindd_list_groups_recv(struct tevent_req *req,
 154                                    struct winbindd_response *response)
 155 {
 156         struct winbindd_list_groups_state *state = tevent_req_data(
 157                 req, struct winbindd_list_groups_state);
 158         NTSTATUS status;
 159         char *result;
 160         int i;
 161         uint32_t j, num_entries = 0;
 162         size_t len;
 163
 164         if (tevent_req_is_nterror(req, &status)) {
 165                 return status;
 166         }
 167
 168         len = 0;
 169         response->data.num_entries = 0;
 170         for (i=0; i<state->num_domains; i++) {
 171                 struct winbindd_list_groups_domstate *d = &state->domains[i];
 172
 173                 for (j=0; j<d->groups.num_principals; j++) {
 174                         const char *name;
 175                         name = fill_domain_username_talloc(response, d->domain->name,
 176                                              d->groups.principals[j].name,
 177                                              True);
 178                         if (name == NULL) {
 179                                 return NT_STATUS_NO_MEMORY;
 180                         }
 181                         len += strlen(name)+1;
 182                 }
 183                 response->data.num_entries += d->groups.num_principals;
 184         }
 185
 186         result = talloc_array(response, char, len+1);
 187         if (result == 0) {
 188                 return NT_STATUS_NO_MEMORY;
 189         }
 190
 191         len = 0;
 192         for (i=0; i<state->num_domains; i++) {
 193                 struct winbindd_list_groups_domstate *d = &state->domains[i];
 194
 195                 for (j=0; j<d->groups.num_principals; j++) {
 196                         const char *name;
 197                         size_t this_len;
 198                         name = fill_domain_username_talloc(response, d->domain->name,
 199                                              d->groups.principals[j].name,
 200                                              True);
 201                         if (name == NULL) {
 202                                 return NT_STATUS_NO_MEMORY;
 203                         }
 204                         this_len = strlen(name);
 205                         memcpy(result+len, name, this_len);
 206                         len += this_len;
 207                         result[len] = ',';
 208                         len += 1;
 209                         num_entries++;
 210                 }
 211         }
 212         result[len-1] = '\0';
 213
 214         response->data.num_entries = num_entries;
 215         response->extra_data.data = result;
 216         response->length += len;
 217
 218         return NT_STATUS_OK;
 219 }