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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
Unix SMB/CIFS implementation.
Get a struct wb_dom_info for a trusted domain, relying on "our" DC.
Copyright (C) Volker Lendecke 2005
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 "libcli/composite/composite.h"
#include "libcli/resolve/resolve.h"
#include "libcli/security/security.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
#include "librpc/gen_ndr/ndr_netlogon_c.h"
#include "libcli/libcli.h"
#include "param/param.h"
struct trusted_dom_info_state {
struct composite_context *ctx;
struct wbsrv_service *service;
struct wbsrv_domain *my_domain;
struct netr_DsRGetDCName d;
struct netr_GetAnyDCName g;
struct wb_dom_info *info;
};
static void trusted_dom_info_recv_domain(struct composite_context *ctx);
static void trusted_dom_info_recv_dsr(struct rpc_request *req);
static void trusted_dom_info_recv_dcname(struct rpc_request *req);
static void trusted_dom_info_recv_dcaddr(struct composite_context *ctx);
struct composite_context *wb_trusted_dom_info_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const char *domain_name,
const struct dom_sid *sid)
{
struct composite_context *result, *ctx;
struct trusted_dom_info_state *state;
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc(result, struct trusted_dom_info_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->info = talloc_zero(state, struct wb_dom_info);
if (state->info == NULL) goto failed;
state->service = service;
state->info->sid = dom_sid_dup(state->info, sid);
if (state->info->sid == NULL) goto failed;
state->info->name = talloc_strdup(state->info, domain_name);
if (state->info->name == NULL) goto failed;
ctx = wb_sid2domain_send(state, service, service->primary_sid);
if (ctx == NULL) goto failed;
ctx->async.fn = trusted_dom_info_recv_domain;
ctx->async.private_data = state;
return result;
failed:
talloc_free(result);
return NULL;
}
static void trusted_dom_info_recv_domain(struct composite_context *ctx)
{
struct trusted_dom_info_state *state =
talloc_get_type(ctx->async.private_data,
struct trusted_dom_info_state);
struct rpc_request *req;
state->ctx->status = wb_sid2domain_recv(ctx, &state->my_domain);
if (!composite_is_ok(state->ctx)) return;
state->d.in.server_unc =
talloc_asprintf(state, "\\\\%s",
dcerpc_server_name(state->my_domain->netlogon_pipe));
if (composite_nomem(state->d.in.server_unc,
state->ctx)) return;
state->d.in.domain_name = state->info->name;
state->d.in.domain_guid = NULL;
state->d.in.site_guid = NULL;
state->d.in.flags = DS_RETURN_DNS_NAME;
req = dcerpc_netr_DsRGetDCName_send(state->my_domain->netlogon_pipe,
state, &state->d);
composite_continue_rpc(state->ctx, req, trusted_dom_info_recv_dsr,
state);
}
/*
* dcerpc_netr_DsRGetDCName has replied
*/
static void trusted_dom_info_recv_dsr(struct rpc_request *req)
{
struct trusted_dom_info_state *state =
talloc_get_type(req->async.private_data,
struct trusted_dom_info_state);
state->ctx->status = dcerpc_ndr_request_recv(req);
if (!NT_STATUS_IS_OK(state->ctx->status)) {
DEBUG(9, ("dcerpc_ndr_request_recv returned %s\n",
nt_errstr(state->ctx->status)));
goto fallback;
}
state->ctx->status =
werror_to_ntstatus(state->d.out.result);
if (!NT_STATUS_IS_OK(state->ctx->status)) {
DEBUG(9, ("dsrgetdcname returned %s\n",
nt_errstr(state->ctx->status)));
goto fallback;
}
/* Hey, that was easy! */
state->info->num_dcs = 1;
state->info->dcs = talloc(state->info, struct nbt_dc_name);
state->info->dcs[0].name = talloc_steal(state->info,
state->d.out.info->dc_unc);
if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++;
if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++;
state->info->dcs[0].address = talloc_steal(state->info,
state->d.out.info->dc_address);
if (*state->info->dcs[0].address == '\\') state->info->dcs[0].address++;
if (*state->info->dcs[0].address == '\\') state->info->dcs[0].address++;
state->info->dns_name = talloc_steal(state->info,
state->d.out.info->domain_name);
composite_done(state->ctx);
return;
fallback:
state->g.in.logon_server = talloc_asprintf(
state, "\\\\%s",
dcerpc_server_name(state->my_domain->netlogon_pipe));
state->g.in.domainname = state->info->name;
req = dcerpc_netr_GetAnyDCName_send(state->my_domain->netlogon_pipe,
state, &state->g);
if (composite_nomem(req, state->ctx)) return;
composite_continue_rpc(state->ctx, req, trusted_dom_info_recv_dcname,
state);
}
static void trusted_dom_info_recv_dcname(struct rpc_request *req)
{
struct trusted_dom_info_state *state =
talloc_get_type(req->async.private_data,
struct trusted_dom_info_state);
struct composite_context *ctx;
struct nbt_name name;
state->ctx->status = dcerpc_ndr_request_recv(req);
if (!composite_is_ok(state->ctx)) return;
state->ctx->status = werror_to_ntstatus(state->g.out.result);
if (!composite_is_ok(state->ctx)) return;
/* Hey, that was easy! */
state->info->num_dcs = 1;
state->info->dcs = talloc(state->info, struct nbt_dc_name);
state->info->dcs[0].name = talloc_steal(state->info,
state->g.out.dcname);
if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++;
if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++;
make_nbt_name(&name, state->info->dcs[0].name, 0x20);
ctx = resolve_name_send(&name, state->service->task->event_ctx,
lp_name_resolve_order(state->service->task->lp_ctx));
composite_continue(state->ctx, ctx, trusted_dom_info_recv_dcaddr,
state);
}
static void trusted_dom_info_recv_dcaddr(struct composite_context *ctx)
{
struct trusted_dom_info_state *state =
talloc_get_type(ctx->async.private_data,
struct trusted_dom_info_state);
state->ctx->status = resolve_name_recv(ctx, state->info,
&state->info->dcs[0].address);
if (!composite_is_ok(state->ctx)) return;
composite_done(state->ctx);
}
NTSTATUS wb_trusted_dom_info_recv(struct composite_context *ctx,
TALLOC_CTX *mem_ctx,
struct wb_dom_info **result)
{
NTSTATUS status = composite_wait(ctx);
if (NT_STATUS_IS_OK(status)) {
struct trusted_dom_info_state *state =
talloc_get_type(ctx->private_data,
struct trusted_dom_info_state);
*result = talloc_steal(mem_ctx, state->info);
}
talloc_free(ctx);
return status;
}
NTSTATUS wb_trusted_dom_info(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const char *domain_name,
const struct dom_sid *sid,
struct wb_dom_info **result)
{
struct composite_context *ctx =
wb_trusted_dom_info_send(mem_ctx, service, domain_name, sid);
return wb_trusted_dom_info_recv(ctx, mem_ctx, result);
}
|
