source3/winbindd/wb_getgrsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async getgrsid
   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_getgrsid_state {
  25         struct tevent_context *ev;
  26         struct dom_sid sid;
  27         int max_nesting;
  28         const char *domname;
  29         const char *name;
  30         enum lsa_SidType type;
  31         gid_t gid;
  32         struct talloc_dict *members;
  33 };
  34
  35 static void wb_getgrsid_lookupsid_done(struct tevent_req *subreq);
  36 static void wb_getgrsid_sid2gid_done(struct tevent_req *subreq);
  37 static void wb_getgrsid_got_members(struct tevent_req *subreq);
  38
  39 struct tevent_req *wb_getgrsid_send(TALLOC_CTX *mem_ctx,
  40                                     struct tevent_context *ev,
  41                                     const struct dom_sid *group_sid,
  42                                     int max_nesting)
  43 {
  44         struct tevent_req *req, *subreq;
  45         struct wb_getgrsid_state *state;
  46
  47         req = tevent_req_create(mem_ctx, &state, struct wb_getgrsid_state);
  48         if (req == NULL) {
  49                 return NULL;
  50         }
  51         sid_copy(&state->sid, group_sid);
  52         state->ev = ev;
  53         state->max_nesting = max_nesting;
  54
  55         subreq = wb_lookupsid_send(state, ev, &state->sid);
  56         if (tevent_req_nomem(subreq, req)) {
  57                 return tevent_req_post(req, ev);
  58         }
  59         tevent_req_set_callback(subreq, wb_getgrsid_lookupsid_done, req);
  60         return req;
  61 }
  62
  63 static void wb_getgrsid_lookupsid_done(struct tevent_req *subreq)
  64 {
  65         struct tevent_req *req = tevent_req_callback_data(
  66                 subreq, struct tevent_req);
  67         struct wb_getgrsid_state *state = tevent_req_data(
  68                 req, struct wb_getgrsid_state);
  69         NTSTATUS status;
  70
  71         status = wb_lookupsid_recv(subreq, state, &state->type,
  72                                    &state->domname, &state->name);
  73         TALLOC_FREE(subreq);
  74         if (!NT_STATUS_IS_OK(status)) {
  75                 tevent_req_nterror(req, status);
  76                 return;
  77         }
  78
  79         switch (state->type) {
  80         case SID_NAME_DOM_GRP:
  81         case SID_NAME_ALIAS:
  82         case SID_NAME_WKN_GRP:
  83                 break;
  84         default:
  85                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_GROUP);
  86                 return;
  87         }
  88
  89         subreq = wb_sid2gid_send(state, state->ev, &state->sid);
  90         if (tevent_req_nomem(subreq, req)) {
  91                 return;
  92         }
  93         tevent_req_set_callback(subreq, wb_getgrsid_sid2gid_done, req);
  94 }
  95
  96 static void wb_getgrsid_sid2gid_done(struct tevent_req *subreq)
  97 {
  98         struct tevent_req *req = tevent_req_callback_data(
  99                 subreq, struct tevent_req);
 100         struct wb_getgrsid_state *state = tevent_req_data(
 101                 req, struct wb_getgrsid_state);
 102         NTSTATUS status;
 103
 104         status = wb_sid2gid_recv(subreq, &state->gid);
 105         TALLOC_FREE(subreq);
 106         if (!NT_STATUS_IS_OK(status)) {
 107                 tevent_req_nterror(req, status);
 108                 return;
 109         }
 110         subreq = wb_group_members_send(state, state->ev, &state->sid,
 111                                        state->type, state->max_nesting);
 112         if (tevent_req_nomem(subreq, req)) {
 113                 return;
 114         }
 115         tevent_req_set_callback(subreq, wb_getgrsid_got_members, req);
 116 }
 117
 118 static void wb_getgrsid_got_members(struct tevent_req *subreq)
 119 {
 120         struct tevent_req *req = tevent_req_callback_data(
 121                 subreq, struct tevent_req);
 122         struct wb_getgrsid_state *state = tevent_req_data(
 123                 req, struct wb_getgrsid_state);
 124         NTSTATUS status;
 125
 126         status = wb_group_members_recv(subreq, state, &state->members);
 127         TALLOC_FREE(subreq);
 128         if (!NT_STATUS_IS_OK(status)) {
 129                 tevent_req_nterror(req, status);
 130                 return;
 131         }
 132         tevent_req_done(req);
 133 }
 134
 135 NTSTATUS wb_getgrsid_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 136                           const char **domname, const char **name, gid_t *gid,
 137                           struct talloc_dict **members)
 138 {
 139         struct wb_getgrsid_state *state = tevent_req_data(
 140                 req, struct wb_getgrsid_state);
 141         NTSTATUS status;
 142
 143         if (tevent_req_is_nterror(req, &status)) {
 144                 return status;
 145         }
 146         *domname = talloc_move(mem_ctx, &state->domname);
 147         *name = talloc_move(mem_ctx, &state->name);
 148         *gid = state->gid;
 149         *members = talloc_move(mem_ctx, &state->members);
 150         return NT_STATUS_OK;
 151 }