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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/*
* Endpoint Mapper Functions
* DCERPC local endpoint mapper client routines
* Copyright (c) 2010 Andreas Schneider.
*
* 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 "librpc/rpc/dcerpc.h"
#include "librpc/rpc/dcerpc_ep.h"
#include "../librpc/gen_ndr/ndr_epmapper_c.h"
#define EPM_MAX_ANNOTATION_SIZE 64
NTSTATUS dcerpc_binding_vector_create(TALLOC_CTX *mem_ctx,
const struct ndr_interface_table *iface,
struct dcerpc_binding_vector **pbvec)
{
struct dcerpc_binding_vector *bvec;
uint32_t ep_count, i;
NTSTATUS status;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_stackframe();
if (tmp_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
ep_count = iface->endpoints->count;
bvec = talloc_zero(tmp_ctx, struct dcerpc_binding_vector);
if (bvec == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
bvec->bindings = talloc_array(bvec, struct dcerpc_binding, ep_count);
if (bvec->bindings == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
for (i = 0; i < ep_count; i++) {
struct dcerpc_binding *b;
b = talloc_zero(bvec->bindings, struct dcerpc_binding);
if (b == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
status = dcerpc_parse_binding(b, iface->endpoints->names[i], &b);
if (!NT_STATUS_IS_OK(status)) {
status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
b->object = iface->syntax_id;
if (b->transport == NCACN_NP) {
b->host = talloc_asprintf(b, "\\\\%s", global_myname());
if (b->host == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
}
bvec->bindings[i] = *b;
}
bvec->count = ep_count;
*pbvec = talloc_move(mem_ctx, &bvec);
status = NT_STATUS_OK;
done:
talloc_free(tmp_ctx);
return status;
}
static NTSTATUS ep_register(const struct ndr_interface_table *iface,
const struct dcerpc_binding_vector *bind_vec,
const struct GUID *object_guid,
const char *annotation,
uint32_t replace,
uint32_t unregister)
{
struct dcerpc_binding_handle *h = NULL;
static struct client_address client_id;
struct epm_entry_t *entries;
uint32_t num_ents, i;
TALLOC_CTX *tmp_ctx;
uint32_t result = EPMAPPER_STATUS_OK;
NTSTATUS status;
if (iface == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (bind_vec == NULL || bind_vec->count == 0) {
return NT_STATUS_INVALID_PARAMETER;
}
tmp_ctx = talloc_stackframe();
if (tmp_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
#if 0
/* NOTE: Samba3 doesn't have a ncalrpc server component yet. As soon as
* this is supported, we should talk to the endpoint mapper over the
* local transport.
*/
/* Connect to the endpoint mapper locally */
ncalrpc_sock = talloc_asprintf(tmp_ctx,
"%s/%s",
get_dyn_NCALRPCDIR(),
"epmapper");
if (ncalrpc_sock == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
status = rpc_pipe_open_ncalrpc(tmp_ctx,
ncalrpc_sock,
&ndr_table_epmapper.syntax_id,
&cli);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
#endif
strlcpy(client_id.addr, "localhost", sizeof(client_id.addr));
client_id.name = "localhost";
status = rpcint_binding_handle(tmp_ctx,
&ndr_table_epmapper,
&client_id,
get_server_info_system(),
server_messaging_context(),
&h);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("dcerpc_ep_register: Could not connect to epmapper (%s)",
nt_errstr(status)));
goto done;
}
num_ents = bind_vec->count;
entries = talloc_array(tmp_ctx, struct epm_entry_t, num_ents);
for (i = 0; i < num_ents; i++) {
struct dcerpc_binding *map_binding = &bind_vec->bindings[i];
struct epm_twr_t *map_tower;
map_tower = talloc_zero(entries, struct epm_twr_t);
if (map_tower == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
status = dcerpc_binding_build_tower(entries,
map_binding,
&map_tower->tower);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
entries[i].tower = map_tower;
if (annotation == NULL) {
entries[i].annotation = talloc_strdup(entries, "");
} else {
entries[i].annotation = talloc_strndup(entries,
annotation,
EPM_MAX_ANNOTATION_SIZE);
}
if (entries[i].annotation == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
if (object_guid != NULL) {
entries[i].object = *object_guid;
} else {
entries[i].object = map_binding->object.uuid;
}
}
if (unregister) {
status = dcerpc_epm_Delete(h,
tmp_ctx,
num_ents,
entries,
&result);
} else {
status = dcerpc_epm_Insert(h,
tmp_ctx,
num_ents,
entries,
replace,
&result);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("dcerpc_ep_register: Could not insert tower (%s)\n",
nt_errstr(status)));
goto done;
}
if (result != EPMAPPER_STATUS_OK) {
DEBUG(0, ("dcerpc_ep_register: Could not insert tower (0x%.8x)\n",
result));
status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
done:
talloc_free(tmp_ctx);
return status;
}
NTSTATUS dcerpc_ep_register(const struct ndr_interface_table *iface,
const struct dcerpc_binding_vector *bind_vec,
const struct GUID *object_guid,
const char *annotation)
{
return ep_register(iface, bind_vec, object_guid, annotation, 1, 0);
}
NTSTATUS dcerpc_ep_register_noreplace(const struct ndr_interface_table *iface,
const struct dcerpc_binding_vector *bind_vec,
const struct GUID *object_guid,
const char *annotation)
{
return ep_register(iface, bind_vec, object_guid, annotation, 0, 0);
}
NTSTATUS dcerpc_ep_unregister(const struct ndr_interface_table *iface,
const struct dcerpc_binding_vector *bind_vec,
const struct GUID *object_guid)
{
return ep_register(iface, bind_vec, object_guid, NULL, 0, 1);
}
/* vim: set ts=8 sw=8 noet cindent syntax=c.doxygen: */
|