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
|
/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
* Almost completely rewritten by (C) Jeremy Allison 2005 - 2010
*
* 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/>.
*/
/* this module apparently provides an implementation of DCE/RPC over a
* named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
* documentation are available (in on-line form) from the X-Open group.
*
* this module should provide a level of abstraction between SMB
* and DCE/RPC, while minimising the amount of mallocs, unnecessary
* data copies, and network traffic.
*
*/
#include "includes.h"
#include "rpc_server.h"
#include "rpc_server/srv_pipe.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
/**
* Is a named pipe known?
* @param[in] dce_ctx The rpc server context
* @param[in] pipename Just the filename
* @param[out] endpoint The DCERPC endpoint serving the pipe name
* @result NT error code
*/
NTSTATUS is_known_pipename(struct dcesrv_context *dce_ctx,
const char *pipename,
struct dcesrv_endpoint **ep)
{
NTSTATUS status;
if (strchr(pipename, '/')) {
DBG_WARNING("Refusing open on pipe %s\n", pipename);
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
if (lp_disable_spoolss() && strequal(pipename, "spoolss")) {
DBG_DEBUG("refusing spoolss access\n");
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
status = dcesrv_endpoint_by_ncacn_np_name(dce_ctx, pipename, ep);
if (NT_STATUS_IS_OK(status)) {
return NT_STATUS_OK;
}
status = smb_probe_module("rpc", pipename);
if (!NT_STATUS_IS_OK(status)) {
DBG_DEBUG("Unknown pipe '%s'\n", pipename);
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
DBG_DEBUG("'%s' loaded dynamically\n", pipename);
/*
* Scan the list again for the interface id
*/
status = dcesrv_endpoint_by_ncacn_np_name(dce_ctx, pipename, ep);
if (NT_STATUS_IS_OK(status)) {
return NT_STATUS_OK;
}
DBG_DEBUG("pipe %s did not register itself!\n", pipename);
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
|
