6f4ae4d0c7a73882451ec484a629ca0309333cfe
[kai/samba.git] / source3 / winbindd / winbindd_lookupsid.c
1 /*
2    Unix SMB/CIFS implementation.
3    async implementation of WINBINDD_LOOKUPSID
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
23 struct winbindd_lookupsid_state {
24         struct tevent_context *ev;
25         struct dom_sid sid;
26         enum lsa_SidType type;
27         const char *domname;
28         const char *name;
29 };
30
31 static void winbindd_lookupsid_done(struct tevent_req *subreq);
32
33 struct tevent_req *winbindd_lookupsid_send(TALLOC_CTX *mem_ctx,
34                                           struct tevent_context *ev,
35                                            struct winbindd_cli_state *cli,
36                                            struct winbindd_request *request)
37 {
38         struct tevent_req *req, *subreq;
39         struct winbindd_lookupsid_state *state;
40
41         req = tevent_req_create(mem_ctx, &state,
42                                 struct winbindd_lookupsid_state);
43         if (req == NULL) {
44                 return NULL;
45         }
46         state->ev = ev;
47
48         /* Ensure null termination */
49         request->data.sid[sizeof(request->data.sid)-1]='\0';
50
51         DEBUG(3, ("lookupsid %s\n", request->data.sid));
52
53         if (!string_to_sid(&state->sid, request->data.sid)) {
54                 DEBUG(5, ("%s not a SID\n", request->data.sid));
55                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
56                 return tevent_req_post(req, ev);;
57         }
58
59         subreq = wb_lookupsid_send(state, ev, &state->sid);
60         if (tevent_req_nomem(subreq, req)) {
61                 return tevent_req_post(req, ev);
62         }
63         tevent_req_set_callback(subreq, winbindd_lookupsid_done, req);
64         return req;
65 }
66
67 static void winbindd_lookupsid_done(struct tevent_req *subreq)
68 {
69         struct tevent_req *req = tevent_req_callback_data(
70                 subreq, struct tevent_req);
71         struct winbindd_lookupsid_state *state = tevent_req_data(
72                 req, struct winbindd_lookupsid_state);
73         NTSTATUS status;
74
75         status = wb_lookupsid_recv(subreq, state, &state->type,
76                                    &state->domname, &state->name);
77         TALLOC_FREE(subreq);
78         if (!NT_STATUS_IS_OK(status)) {
79                 tevent_req_nterror(req, status);
80                 return;
81         }
82         tevent_req_done(req);
83 }
84
85 NTSTATUS winbindd_lookupsid_recv(struct tevent_req *req,
86                                  struct winbindd_response *response)
87 {
88         struct winbindd_lookupsid_state *state = tevent_req_data(
89                 req, struct winbindd_lookupsid_state);
90         NTSTATUS status;
91
92         if (tevent_req_is_nterror(req, &status)) {
93                 DEBUG(5, ("Could not lookup sid %s: %s\n",
94                           sid_string_dbg(&state->sid), nt_errstr(status)));
95                 return status;
96         }
97
98         fstrcpy(response->data.name.dom_name, state->domname);
99         fstrcpy(response->data.name.name, state->name);
100         response->data.name.type = state->type;
101         return NT_STATUS_OK;
102 }