1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
Unix SMB/CIFS implementation.
async sid2gid
Copyright (C) Volker Lendecke 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "winbindd.h"
#include "librpc/gen_ndr/cli_wbint.h"
struct wb_sid2gid_state {
struct tevent_context *ev;
struct dom_sid sid;
char *dom_name;
uint64 gid64;
gid_t gid;
};
static void wb_sid2gid_lookup_done(struct tevent_req *subreq);
static void wb_sid2gid_done(struct tevent_req *subreq);
struct tevent_req *wb_sid2gid_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const struct dom_sid *sid)
{
struct tevent_req *req, *subreq;
struct wb_sid2gid_state *state;
bool expired;
req = tevent_req_create(mem_ctx, &state, struct wb_sid2gid_state);
if (req == NULL) {
return NULL;
}
sid_copy(&state->sid, sid);
state->ev = ev;
if (winbindd_use_idmap_cache()
&& idmap_cache_find_sid2gid(sid, &state->gid, &expired)) {
DEBUG(10, ("idmap_cache_find_sid2gid found %d%s\n",
(int)state->gid, expired ? " (expired)": ""));
if (!expired || is_domain_offline(find_our_domain())) {
if (state->gid == -1) {
tevent_req_nterror(req, NT_STATUS_NONE_MAPPED);
} else {
tevent_req_done(req);
}
return tevent_req_post(req, ev);
}
}
/*
* We need to make sure the sid is of the right type to not flood
* idmap with wrong entries
*/
subreq = wb_lookupsid_send(state, ev, &state->sid);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, wb_sid2gid_lookup_done, req);
return req;
}
static void wb_sid2gid_lookup_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_sid2gid_state *state = tevent_req_data(
req, struct wb_sid2gid_state);
struct winbindd_domain *domain;
const char *domname;
const char *name;
enum lsa_SidType type;
NTSTATUS status;
struct winbindd_child *child;
status = wb_lookupsid_recv(subreq, talloc_tos(), &type, &domname,
&name);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
return;
}
if ((type != SID_NAME_DOM_GRP) && (type != SID_NAME_ALIAS)
&& (type != SID_NAME_WKN_GRP)) {
DEBUG(5, ("Sid %s is not a group.\n",
sid_string_dbg(&state->sid)));
/*
* We have to set the cache ourselves here, the child
* which is normally responsible was not queried yet.
*/
idmap_cache_set_sid2gid(&state->sid, -1);
tevent_req_nterror(req, NT_STATUS_INVALID_SID);
return;
}
domain = find_domain_from_sid_noinit(&state->sid);
/*
* TODO: Issue a gettrustinfo here in case we don't have "domain" yet?
*/
if ((domain != NULL) && domain->have_idmap_config) {
state->dom_name = domain->name;
} else {
state->dom_name = NULL;
}
child = idmap_child();
subreq = rpccli_wbint_Sid2Gid_send(state, state->ev, child->rpccli,
state->dom_name, &state->sid,
&state->gid64);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, wb_sid2gid_done, req);
}
static void wb_sid2gid_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_sid2gid_state *state = tevent_req_data(
req, struct wb_sid2gid_state);
NTSTATUS status, result;
status = rpccli_wbint_Sid2Gid_recv(subreq, state, &result);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
return;
}
if (!NT_STATUS_IS_OK(result)) {
tevent_req_nterror(req, result);
return;
}
state->gid = state->gid64;
tevent_req_done(req);
}
NTSTATUS wb_sid2gid_recv(struct tevent_req *req, gid_t *gid)
{
struct wb_sid2gid_state *state = tevent_req_data(
req, struct wb_sid2gid_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
*gid = state->gid;
return NT_STATUS_OK;
}
|
