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
|
/*
Unix SMB/CIFS implementation.
Connect to the SAMR pipe, and return connection and domain handles.
Copyright (C) Volker Lendecke 2005
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2007
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 "libcli/composite/composite.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/security/security.h"
#include "librpc/gen_ndr/ndr_samr_c.h"
#include "winbind/wb_server.h"
/* Helper to initialize SAMR with a specific auth methods. Verify by opening
* the SAM handle */
struct connect_samr_state {
struct composite_context *ctx;
struct dom_sid *sid;
struct dcerpc_pipe *samr_pipe;
struct policy_handle *connect_handle;
struct policy_handle *domain_handle;
struct samr_Connect2 c;
struct samr_OpenDomain o;
};
static void connect_samr_recv_pipe(struct composite_context *ctx);
static void connect_samr_recv_conn(struct rpc_request *req);
static void connect_samr_recv_open(struct rpc_request *req);
struct composite_context *wb_connect_samr_send(TALLOC_CTX *mem_ctx,
struct wbsrv_domain *domain)
{
struct composite_context *result, *ctx;
struct connect_samr_state *state;
result = composite_create(mem_ctx, domain->netlogon_pipe->conn->event_ctx);
if (result == NULL) goto failed;
state = talloc(result, struct connect_samr_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->sid = dom_sid_dup(state, domain->info->sid);
if (state->sid == NULL) goto failed;
/* this will make the secondary connection on the same IPC$ share,
secured with SPNEGO, NTLMSSP or SCHANNEL */
ctx = dcerpc_secondary_connection_send(domain->netlogon_pipe,
domain->samr_binding);
composite_continue(state->ctx, ctx, connect_samr_recv_pipe, state);
return result;
failed:
talloc_free(result);
return NULL;
}
static void connect_samr_recv_pipe(struct composite_context *ctx)
{
struct rpc_request *req;
struct connect_samr_state *state =
talloc_get_type(ctx->async.private_data,
struct connect_samr_state);
state->ctx->status = dcerpc_secondary_connection_recv(ctx,
&state->samr_pipe);
if (!composite_is_ok(state->ctx)) return;
state->connect_handle = talloc(state, struct policy_handle);
if (composite_nomem(state->connect_handle, state->ctx)) return;
state->c.in.system_name =
talloc_asprintf(state, "\\\\%s",
dcerpc_server_name(state->samr_pipe));
state->c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
state->c.out.connect_handle = state->connect_handle;
req = dcerpc_samr_Connect2_send(state->samr_pipe, state, &state->c);
composite_continue_rpc(state->ctx, req, connect_samr_recv_conn, state);
return;
}
static void connect_samr_recv_conn(struct rpc_request *req)
{
struct connect_samr_state *state =
talloc_get_type(req->async.private_data,
struct connect_samr_state);
state->ctx->status = dcerpc_ndr_request_recv(req);
if (!composite_is_ok(state->ctx)) return;
state->ctx->status = state->c.out.result;
if (!composite_is_ok(state->ctx)) return;
state->domain_handle = talloc(state, struct policy_handle);
if (composite_nomem(state->domain_handle, state->ctx)) return;
state->o.in.connect_handle = state->connect_handle;
state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
state->o.in.sid = state->sid;
state->o.out.domain_handle = state->domain_handle;
req = dcerpc_samr_OpenDomain_send(state->samr_pipe, state, &state->o);
composite_continue_rpc(state->ctx, req,
connect_samr_recv_open, state);
}
static void connect_samr_recv_open(struct rpc_request *req)
{
struct connect_samr_state *state =
talloc_get_type(req->async.private_data,
struct connect_samr_state);
state->ctx->status = dcerpc_ndr_request_recv(req);
if (!composite_is_ok(state->ctx)) return;
state->ctx->status = state->o.out.result;
if (!composite_is_ok(state->ctx)) return;
composite_done(state->ctx);
}
NTSTATUS wb_connect_samr_recv(struct composite_context *c,
TALLOC_CTX *mem_ctx,
struct dcerpc_pipe **samr_pipe,
struct policy_handle **connect_handle,
struct policy_handle **domain_handle)
{
NTSTATUS status = composite_wait(c);
if (NT_STATUS_IS_OK(status)) {
struct connect_samr_state *state =
talloc_get_type(c->private_data,
struct connect_samr_state);
*samr_pipe = talloc_steal(mem_ctx, state->samr_pipe);
*connect_handle = talloc_steal(mem_ctx, state->connect_handle);
*domain_handle = talloc_steal(mem_ctx, state->domain_handle);
}
talloc_free(c);
return status;
}
|
