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
|
/*
Unix SMB/CIFS implementation.
remote dcerpc operations
Copyright (C) Stefan (metze) Metzmacher 2004
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
struct dcesrv_remote_private {
struct dcerpc_pipe *c_pipe;
void *private;
};
static NTSTATUS remote_op_bind(struct dcesrv_call_state *dce_call, const struct dcesrv_interface *iface)
{
NTSTATUS status;
struct dcesrv_remote_private *private;
const char *binding = lp_parm_string(-1, "dcerpc_remote", "binding");
const char *print_debug = lp_parm_string(-1, "dcerpc_remote", "print_debug");
if (!binding) {
printf("You must specify a ncacn binding string\n");
return NT_STATUS_INVALID_PARAMETER;
}
private = talloc_p(dce_call->conn->mem_ctx, struct dcesrv_remote_private);
if (!private) {
return NT_STATUS_NO_MEMORY;
}
status = dcerpc_pipe_connect(&(private->c_pipe), binding, iface->ndr->uuid, iface->ndr->if_version,
lp_workgroup(),
lp_parm_string(-1, "dcerpc_remote", "username"),
lp_parm_string(-1, "dcerpc_remote", "password"));
if (print_debug && strcasecmp("yes",print_debug) == 0) {
private->c_pipe->flags |= DCERPC_DEBUG_PRINT_BOTH;
}
dce_call->conn->private = private;
return NT_STATUS_OK;
}
static void remote_op_unbind(struct dcesrv_connection *dce_conn, const struct dcesrv_interface *iface)
{
struct dcesrv_remote_private *private = dce_conn->private;
dcerpc_pipe_close(private->c_pipe);
return;
}
static NTSTATUS remote_op_dispatch(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, void *r)
{
struct dcesrv_remote_private *private = dce_call->conn->private;
NTSTATUS status;
uint16 opnum = dce_call->pkt.u.request.opnum;
ndr_push_flags_fn_t ndr_push_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_push;
ndr_pull_flags_fn_t ndr_pull_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_pull;
size_t struct_size = dce_call->conn->iface->ndr->calls[opnum].struct_size;
status = dcerpc_ndr_request(private->c_pipe, opnum, mem_ctx,
(ndr_push_flags_fn_t) ndr_push_fn,
(ndr_pull_flags_fn_t) ndr_pull_fn,
r, struct_size);
return status;
}
static NTSTATUS remote_register_one_iface(struct dcesrv_context *dce_ctx, const struct dcesrv_interface *iface)
{
int i;
for (i=0;i<iface->ndr->endpoints->count;i++) {
NTSTATUS ret;
const char *name = iface->ndr->endpoints->names[i];
ret = dcesrv_interface_register(dce_ctx, name, iface, NULL);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(1,("remote_op_init_server: failed to register endpoint '%s'\n",name));
return ret;
}
}
return NT_STATUS_OK;
}
static NTSTATUS remote_op_init_server(struct dcesrv_context *dce_ctx, const struct dcesrv_endpoint_server *ep_server)
{
int i;
char **ifaces = str_list_make(lp_parm_string(-1,"dcerpc_remote","interfaces"),NULL);
if (!ifaces) {
DEBUG(3,("remote_op_init_server: no interfaces configured\n"));
return NT_STATUS_OK;
}
for (i=0;ifaces[i];i++) {
NTSTATUS ret;
struct dcesrv_interface iface;
if (!ep_server->interface_by_name(&iface, ifaces[i])) {
DEBUG(0,("remote_op_init_server: failed to find interface = '%s'\n", ifaces[i]));
str_list_free(&ifaces);
return NT_STATUS_UNSUCCESSFUL;
}
ret = remote_register_one_iface(dce_ctx, &iface);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("remote_op_init_server: failed to register interface = '%s'\n", ifaces[i]));
str_list_free(&ifaces);
return ret;
}
}
str_list_free(&ifaces);
return NT_STATUS_OK;
}
static BOOL remote_fill_interface(struct dcesrv_interface *iface, const struct dcerpc_interface_table *if_tabl)
{
iface->ndr = if_tabl;
iface->bind = remote_op_bind;
iface->unbind = remote_op_unbind;
iface->dispatch = remote_op_dispatch;
return True;
}
static BOOL remote_op_interface_by_uuid(struct dcesrv_interface *iface, const char *uuid, uint32 if_version)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (dcerpc_pipes[i]->if_version == if_version &&
strcmp(dcerpc_pipes[i]->uuid, uuid)==0) {
return remote_fill_interface(iface, dcerpc_pipes[i]);
}
}
return False;
}
static BOOL remote_op_interface_by_name(struct dcesrv_interface *iface, const char *name)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcmp(dcerpc_pipes[i]->name, name)==0) {
return remote_fill_interface(iface, dcerpc_pipes[i]);
}
}
return False;
}
NTSTATUS dcerpc_remote_init(void)
{
NTSTATUS ret;
struct dcesrv_endpoint_server ep_server;
ZERO_STRUCT(ep_server);
/* fill in our name */
ep_server.name = "remote";
/* fill in all the operations */
ep_server.init_server = remote_op_init_server;
ep_server.interface_by_uuid = remote_op_interface_by_uuid;
ep_server.interface_by_name = remote_op_interface_by_name;
/* register ourselves with the DCERPC subsystem. */
ret = register_backend("dcerpc", &ep_server);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register 'remote' endpoint server!\n"));
return ret;
}
return ret;
}
|
