source: branches/samba-3.5.x/source4/winbind/wb_connect_sam.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 5.1 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Connect to the SAMR pipe, and return connection and domain handles.
5
6 Copyright (C) Volker Lendecke 2005
7 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2007
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#include "includes.h"
24#include "libcli/composite/composite.h"
25
26#include "libcli/raw/libcliraw.h"
27#include "libcli/security/security.h"
28#include "librpc/gen_ndr/ndr_samr_c.h"
29#include "winbind/wb_server.h"
30
31
32/* Helper to initialize SAMR with a specific auth methods. Verify by opening
33 * the SAM handle */
34
35struct connect_samr_state {
36 struct composite_context *ctx;
37 struct dom_sid *sid;
38
39 struct dcerpc_pipe *samr_pipe;
40 struct policy_handle *connect_handle;
41 struct policy_handle *domain_handle;
42
43 struct samr_Connect2 c;
44 struct samr_OpenDomain o;
45};
46
47static void connect_samr_recv_pipe(struct composite_context *ctx);
48static void connect_samr_recv_conn(struct rpc_request *req);
49static void connect_samr_recv_open(struct rpc_request *req);
50
51struct composite_context *wb_connect_samr_send(TALLOC_CTX *mem_ctx,
52 struct wbsrv_domain *domain)
53{
54 struct composite_context *result, *ctx;
55 struct connect_samr_state *state;
56
57 result = composite_create(mem_ctx, domain->netlogon_pipe->conn->event_ctx);
58 if (result == NULL) goto failed;
59
60 state = talloc(result, struct connect_samr_state);
61 if (state == NULL) goto failed;
62 state->ctx = result;
63 result->private_data = state;
64
65 state->sid = dom_sid_dup(state, domain->info->sid);
66 if (state->sid == NULL) goto failed;
67
68 /* this will make the secondary connection on the same IPC$ share,
69 secured with SPNEGO, NTLMSSP or SCHANNEL */
70 ctx = dcerpc_secondary_auth_connection_send(domain->netlogon_pipe,
71 domain->samr_binding,
72 &ndr_table_samr,
73 domain->libnet_ctx->cred,
74 domain->libnet_ctx->lp_ctx);
75 composite_continue(state->ctx, ctx, connect_samr_recv_pipe, state);
76 return result;
77
78 failed:
79 talloc_free(result);
80 return NULL;
81}
82
83static void connect_samr_recv_pipe(struct composite_context *ctx)
84{
85 struct rpc_request *req;
86 struct connect_samr_state *state =
87 talloc_get_type(ctx->async.private_data,
88 struct connect_samr_state);
89
90 state->ctx->status = dcerpc_secondary_auth_connection_recv(ctx, state,
91 &state->samr_pipe);
92 if (!composite_is_ok(state->ctx)) return;
93
94 state->connect_handle = talloc(state, struct policy_handle);
95 if (composite_nomem(state->connect_handle, state->ctx)) return;
96
97 state->c.in.system_name =
98 talloc_asprintf(state, "\\\\%s",
99 dcerpc_server_name(state->samr_pipe));
100 state->c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
101 state->c.out.connect_handle = state->connect_handle;
102
103 req = dcerpc_samr_Connect2_send(state->samr_pipe, state, &state->c);
104 composite_continue_rpc(state->ctx, req, connect_samr_recv_conn, state);
105 return;
106}
107
108static void connect_samr_recv_conn(struct rpc_request *req)
109{
110 struct connect_samr_state *state =
111 talloc_get_type(req->async.private_data,
112 struct connect_samr_state);
113
114 state->ctx->status = dcerpc_ndr_request_recv(req);
115 if (!composite_is_ok(state->ctx)) return;
116 state->ctx->status = state->c.out.result;
117 if (!composite_is_ok(state->ctx)) return;
118
119 state->domain_handle = talloc(state, struct policy_handle);
120 if (composite_nomem(state->domain_handle, state->ctx)) return;
121
122 state->o.in.connect_handle = state->connect_handle;
123 state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
124 state->o.in.sid = state->sid;
125 state->o.out.domain_handle = state->domain_handle;
126
127 req = dcerpc_samr_OpenDomain_send(state->samr_pipe, state, &state->o);
128 composite_continue_rpc(state->ctx, req,
129 connect_samr_recv_open, state);
130}
131
132static void connect_samr_recv_open(struct rpc_request *req)
133{
134 struct connect_samr_state *state =
135 talloc_get_type(req->async.private_data,
136 struct connect_samr_state);
137
138 state->ctx->status = dcerpc_ndr_request_recv(req);
139 if (!composite_is_ok(state->ctx)) return;
140 state->ctx->status = state->o.out.result;
141 if (!composite_is_ok(state->ctx)) return;
142
143 composite_done(state->ctx);
144}
145
146NTSTATUS wb_connect_samr_recv(struct composite_context *c,
147 TALLOC_CTX *mem_ctx,
148 struct dcerpc_pipe **samr_pipe,
149 struct policy_handle *connect_handle,
150 struct policy_handle *domain_handle)
151{
152 NTSTATUS status = composite_wait(c);
153 if (NT_STATUS_IS_OK(status)) {
154 struct connect_samr_state *state =
155 talloc_get_type(c->private_data,
156 struct connect_samr_state);
157 *samr_pipe = talloc_steal(mem_ctx, state->samr_pipe);
158 *connect_handle = *state->connect_handle;
159 *domain_handle = *state->domain_handle;
160 }
161 talloc_free(c);
162 return status;
163}
164
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