s3:winbind: Convert WINBINDD_GETGRGID to the new API
[metze/samba/wip.git] / source3 / winbindd / winbindd_getgrgid.c
1 /*
2    Unix SMB/CIFS implementation.
3    async implementation of WINBINDD_GETGRGID
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_getgrgid_state {
24         struct tevent_context *ev;
25         struct dom_sid sid;
26         const char *domname;
27         const char *name;
28         gid_t gid;
29         struct talloc_dict *members;
30 };
31
32 static void winbindd_getgrgid_gid2sid_done(struct tevent_req *subreq);
33 static void winbindd_getgrgid_done(struct tevent_req *subreq);
34
35 struct tevent_req *winbindd_getgrgid_send(TALLOC_CTX *mem_ctx,
36                                           struct tevent_context *ev,
37                                           struct winbindd_request *request)
38 {
39         struct tevent_req *req, *subreq;
40         struct winbindd_getgrgid_state *state;
41
42         req = tevent_req_create(mem_ctx, &state,
43                                 struct winbindd_getgrgid_state);
44         if (req == NULL) {
45                 return NULL;
46         }
47         state->ev = ev;
48
49         DEBUG(3, ("getgrgid %d\n", (int)request->data.gid));
50
51         subreq = wb_gid2sid_send(state, ev, request->data.gid);
52         if (tevent_req_nomem(subreq, req)) {
53                 return tevent_req_post(req, ev);
54         }
55         tevent_req_set_callback(subreq, winbindd_getgrgid_gid2sid_done,
56                                 req);
57         return req;
58 }
59
60 static void winbindd_getgrgid_gid2sid_done(struct tevent_req *subreq)
61 {
62         struct tevent_req *req = tevent_req_callback_data(
63                 subreq, struct tevent_req);
64         struct winbindd_getgrgid_state *state = tevent_req_data(
65                 req, struct winbindd_getgrgid_state);
66         NTSTATUS status;
67
68         status = wb_gid2sid_recv(subreq, &state->sid);
69         TALLOC_FREE(subreq);
70         if (!NT_STATUS_IS_OK(status)) {
71                 tevent_req_nterror(req, status);
72                 return;
73         }
74
75         subreq = wb_getgrsid_send(state, state->ev, &state->sid,
76                                   lp_winbind_expand_groups());
77         if (tevent_req_nomem(subreq, req)) {
78                 return;
79         }
80         tevent_req_set_callback(subreq, winbindd_getgrgid_done, req);
81 }
82
83 static void winbindd_getgrgid_done(struct tevent_req *subreq)
84 {
85         struct tevent_req *req = tevent_req_callback_data(
86                 subreq, struct tevent_req);
87         struct winbindd_getgrgid_state *state = tevent_req_data(
88                 req, struct winbindd_getgrgid_state);
89         NTSTATUS status;
90
91         status = wb_getgrsid_recv(subreq, state, &state->domname, &state->name,
92                                   &state->gid, &state->members);
93         TALLOC_FREE(subreq);
94         if (!NT_STATUS_IS_OK(status)) {
95                 tevent_req_nterror(req, status);
96                 return;
97         }
98         tevent_req_done(req);
99 }
100
101 NTSTATUS winbindd_getgrgid_recv(struct tevent_req *req,
102                                 struct winbindd_response *response)
103 {
104         struct winbindd_getgrgid_state *state = tevent_req_data(
105                 req, struct winbindd_getgrgid_state);
106         NTSTATUS status;
107         int num_members;
108         char *buf;
109
110         if (tevent_req_is_nterror(req, &status)) {
111                 DEBUG(5, ("Could not convert sid %s: %s\n",
112                           sid_string_dbg(&state->sid), nt_errstr(status)));
113                 return status;
114         }
115
116         if (!fill_grent(talloc_tos(), &response->data.gr, state->domname,
117                         state->name, state->gid)) {
118                 DEBUG(5, ("fill_grent failed\n"));
119                 return NT_STATUS_NO_MEMORY;
120         }
121
122         status = winbindd_print_groupmembers(state->members, response,
123                                              &num_members, &buf);
124
125         response->data.gr.num_gr_mem = (uint32)num_members;
126
127         /* Group membership lives at start of extra data */
128
129         response->data.gr.gr_mem_ofs = 0;
130         response->extra_data.data = buf;
131         response->length += talloc_get_size(response->extra_data.data);
132
133         return NT_STATUS_OK;
134 }