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
|
/*
Unix SMB/CIFS implementation.
Samba 4-compatible DCE/RPC API on top of the Samba 3 DCE/RPC client library.
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
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"
/**
* Send a struct-based RPC request using the Samba 3 RPC client library.
*/
struct rpc_request *dcerpc_ndr_request_send(struct dcerpc_pipe *p, const struct GUID *object,
const struct ndr_interface_table *table, uint32_t opnum,
TALLOC_CTX *mem_ctx, void *r)
{
const struct ndr_interface_call *call;
struct ndr_push *push;
struct rpc_request *ret = talloc(mem_ctx, struct rpc_request);
enum ndr_err_code ndr_err;
DATA_BLOB blob;
if (ret == NULL)
return NULL;
SMB_ASSERT(p->table->num_calls > opnum);
call = &p->table->calls[opnum];
ret->call = call;
ret->r = r;
push = ndr_push_init_ctx(mem_ctx, NULL);
if (!push) {
return NULL;
}
ndr_err = call->ndr_push(push, NDR_IN, r);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
/* FIXME: ndr_map_error2ntstatus(ndr_err); */
return NULL;
}
blob = ndr_push_blob(push);
if (!prs_init_data_blob(&ret->q_ps, &blob, mem_ctx)) {
return NULL;
}
talloc_free(push);
ret->opnum = opnum;
ret->pipe = p;
return ret;
}
/**
* Wait for a DCE/RPC request.
*
* @note at the moment this is still sync, even though the API is async.
*/
NTSTATUS dcerpc_ndr_request_recv(struct rpc_request *req)
{
prs_struct r_ps;
struct ndr_pull *pull;
NTSTATUS status;
DATA_BLOB blob;
enum ndr_err_code ndr_err;
prs_init_empty( &r_ps, req, UNMARSHALL );
status = rpc_api_pipe_req(req, req->pipe->rpc_cli, req->opnum,
&req->q_ps, &r_ps);
prs_mem_free( &req->q_ps );
if (!NT_STATUS_IS_OK(status)) {
prs_mem_free( &r_ps );
return status;
}
if (!prs_data_blob(&r_ps, &blob, req)) {
prs_mem_free( &r_ps );
return NT_STATUS_NO_MEMORY;
}
prs_mem_free( &r_ps );
pull = ndr_pull_init_blob(&blob, req, NULL);
if (pull == NULL) {
return NT_STATUS_NO_MEMORY;
}
/* have the ndr parser alloc memory for us */
pull->flags |= LIBNDR_FLAG_REF_ALLOC;
ndr_err = req->call->ndr_pull(pull, NDR_OUT, req->r);
talloc_free(pull);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
#if 0
Completely unfinished and unused -- vl :-)
/**
* Connect to a DCE/RPC interface.
*
* @note lp_ctx and ev are ignored at the moment but present
* for API compatibility.
*/
_PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx, struct dcerpc_pipe **pp,
const char *binding_string, const struct ndr_interface_table *table,
struct cli_credentials *credentials, struct event_context *ev,
struct loadparm_context *lp_ctx)
{
struct dcerpc_pipe *p = talloc(parent_ctx, struct dcerpc_pipe);
struct dcerpc_binding *binding;
NTSTATUS nt_status;
nt_status = dcerpc_parse_binding(p, binding_string, &binding);
if (NT_STATUS_IS_ERR(nt_status)) {
DEBUG(1, ("Unable to parse binding string '%s'", binding_string));
talloc_free(p);
return nt_status;
}
if (binding->transport != NCACN_NP) {
DEBUG(0, ("Only ncacn_np supported"));
talloc_free(p);
return NT_STATUS_NOT_SUPPORTED;
}
/* FIXME: Actually use loadparm_context.. */
/* FIXME: actually use credentials */
nt_status = cli_full_connection(&p->cli, global_myname(), binding->host,
NULL, 0,
"IPC$", "IPC",
get_cmdline_auth_info_username(),
lp_workgroup(),
get_cmdline_auth_info_password(),
get_cmdline_auth_info_use_kerberos() ? CLI_FULL_CONNECTION_USE_KERBEROS : 0,
get_cmdline_auth_info_signing_state(), NULL);
if (NT_STATUS_IS_ERR(nt_status)) {
talloc_free(p);
return nt_status;
}
nt_status = cli_rpc_pipe_open_noauth(p->cli, &table->syntax_id,
&p->rpc_cli);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(p);
return nt_status;
}
p->table = table;
*pp = p;
return nt_status;
}
#endif
|
