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
|
/*
Unix SMB/CIFS implementation.
Copyright (C) Stefan Metzmacher 2004
Copyright (C) Rafal Szczesniak 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 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"
#include "libnet/libnet.h"
/**
* Connects rpc pipe on remote server
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
static NTSTATUS libnet_RpcConnectSrv(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_RpcConnect *r)
{
NTSTATUS status;
const char *binding = NULL;
/* prepare binding string */
switch (r->level) {
case LIBNET_RPC_CONNECT_PDC:
case LIBNET_RPC_CONNECT_SERVER:
binding = talloc_asprintf(mem_ctx, "ncacn_np:%s", r->in.domain_name);
break;
case LIBNET_RPC_CONNECT_BINDING:
binding = r->in.binding;
break;
}
/* connect to remote dcerpc pipe */
status = dcerpc_pipe_connect(mem_ctx, &r->out.dcerpc_pipe,
binding, r->in.dcerpc_iface_uuid, r->in.dcerpc_iface_version,
ctx->cred, ctx->event_ctx);
if (!NT_STATUS_IS_OK(status)) {
r->out.error_string = talloc_asprintf(mem_ctx,
"dcerpc_pipe_connect to pipe %s failed with %s\n",
r->in.dcerpc_iface_name, binding);
return status;
}
r->out.error_string = NULL;
ctx->pipe = r->out.dcerpc_pipe;
return status;
}
/**
* Connects rpc pipe on domain pdc
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
static NTSTATUS libnet_RpcConnectPdc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_RpcConnect *r)
{
NTSTATUS status;
struct libnet_RpcConnect r2;
struct libnet_Lookup f;
f.in.hostname = r->in.domain_name;
f.in.methods = NULL;
f.out.address = NULL;
/* find the domain pdc first */
status = libnet_LookupPdc(ctx, mem_ctx, &f);
if (!NT_STATUS_IS_OK(status)) {
r->out.error_string = talloc_asprintf(mem_ctx, "libnet_LookupPdc failed: %s",
nt_errstr(status));
return status;
}
/* ok, pdc has been found so do attempt to rpc connect */
r2.level = LIBNET_RPC_CONNECT_SERVER;
r2.in.domain_name = talloc_strdup(mem_ctx, f.out.address[0]);
r2.in.dcerpc_iface_name = r->in.dcerpc_iface_name;
r2.in.dcerpc_iface_uuid = r->in.dcerpc_iface_uuid;
r2.in.dcerpc_iface_version = r->in.dcerpc_iface_version;
status = libnet_RpcConnect(ctx, mem_ctx, &r2);
r->out.dcerpc_pipe = r2.out.dcerpc_pipe;
r->out.error_string = r2.out.error_string;
ctx->pipe = r->out.dcerpc_pipe;
return status;
}
/**
* Connects to rpc pipe on remote server or pdc
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
NTSTATUS libnet_RpcConnect(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_RpcConnect *r)
{
switch (r->level) {
case LIBNET_RPC_CONNECT_SERVER:
return libnet_RpcConnectSrv(ctx, mem_ctx, r);
case LIBNET_RPC_CONNECT_BINDING:
return libnet_RpcConnectSrv(ctx, mem_ctx, r);
case LIBNET_RPC_CONNECT_PDC:
return libnet_RpcConnectPdc(ctx, mem_ctx, r);
}
return NT_STATUS_INVALID_LEVEL;
}
|
