source: vendor/current/source3/utils/net_util.c@ 414

Last change on this file since 414 was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 17.1 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * Helper routines for net
4 * Copyright (C) Volker Lendecke 2006
5 * Copyright (C) Kai Blin 2008
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21
22#include "includes.h"
23#include "utils/net.h"
24#include "../librpc/gen_ndr/cli_lsa.h"
25#include "../librpc/gen_ndr/cli_dssetup.h"
26
27NTSTATUS net_rpc_lookup_name(struct net_context *c,
28 TALLOC_CTX *mem_ctx, struct cli_state *cli,
29 const char *name, const char **ret_domain,
30 const char **ret_name, DOM_SID *ret_sid,
31 enum lsa_SidType *ret_type)
32{
33 struct rpc_pipe_client *lsa_pipe = NULL;
34 struct policy_handle pol;
35 NTSTATUS result = NT_STATUS_OK;
36 const char **dom_names;
37 DOM_SID *sids;
38 enum lsa_SidType *types;
39
40 ZERO_STRUCT(pol);
41
42 result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
43 &lsa_pipe);
44 if (!NT_STATUS_IS_OK(result)) {
45 d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
46 return result;
47 }
48
49 result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
50 SEC_FLAG_MAXIMUM_ALLOWED,
51 &pol);
52 if (!NT_STATUS_IS_OK(result)) {
53 d_fprintf(stderr, "open_policy %s: %s\n", _("failed"),
54 nt_errstr(result));
55 return result;
56 }
57
58 result = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
59 &name, &dom_names, 1, &sids, &types);
60
61 if (!NT_STATUS_IS_OK(result)) {
62 /* This can happen easily, don't log an error */
63 goto done;
64 }
65
66 if (ret_domain != NULL) {
67 *ret_domain = dom_names[0];
68 }
69 if (ret_name != NULL) {
70 *ret_name = talloc_strdup(mem_ctx, name);
71 }
72 if (ret_sid != NULL) {
73 sid_copy(ret_sid, &sids[0]);
74 }
75 if (ret_type != NULL) {
76 *ret_type = types[0];
77 }
78
79 done:
80 if (is_valid_policy_hnd(&pol)) {
81 rpccli_lsa_Close(lsa_pipe, mem_ctx, &pol);
82 }
83 TALLOC_FREE(lsa_pipe);
84
85 return result;
86}
87
88/****************************************************************************
89 Connect to \\server\service.
90****************************************************************************/
91
92NTSTATUS connect_to_service(struct net_context *c,
93 struct cli_state **cli_ctx,
94 struct sockaddr_storage *server_ss,
95 const char *server_name,
96 const char *service_name,
97 const char *service_type)
98{
99 NTSTATUS nt_status;
100 int flags = 0;
101
102 c->opt_password = net_prompt_pass(c, c->opt_user_name);
103
104 if (c->opt_kerberos) {
105 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
106 }
107
108 if (c->opt_kerberos && c->opt_password) {
109 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
110 }
111
112 if (c->opt_ccache) {
113 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
114 }
115
116 nt_status = cli_full_connection(cli_ctx, NULL, server_name,
117 server_ss, c->opt_port,
118 service_name, service_type,
119 c->opt_user_name, c->opt_workgroup,
120 c->opt_password, flags, Undefined, NULL);
121 if (!NT_STATUS_IS_OK(nt_status)) {
122 d_fprintf(stderr, _("Could not connect to server %s\n"),
123 server_name);
124
125 /* Display a nicer message depending on the result */
126
127 if (NT_STATUS_V(nt_status) ==
128 NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
129 d_fprintf(stderr,
130 _("The username or password was not "
131 "correct.\n"));
132
133 if (NT_STATUS_V(nt_status) ==
134 NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
135 d_fprintf(stderr, _("The account was locked out.\n"));
136
137 if (NT_STATUS_V(nt_status) ==
138 NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
139 d_fprintf(stderr, _("The account was disabled.\n"));
140 return nt_status;
141 }
142
143 if (c->smb_encrypt) {
144 nt_status = cli_force_encryption(*cli_ctx,
145 c->opt_user_name,
146 c->opt_password,
147 c->opt_workgroup);
148
149 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
150 d_printf(_("Encryption required and "
151 "server that doesn't support "
152 "UNIX extensions - failing connect\n"));
153 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
154 d_printf(_("Encryption required and "
155 "can't get UNIX CIFS extensions "
156 "version from server.\n"));
157 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
158 d_printf(_("Encryption required and "
159 "share %s doesn't support "
160 "encryption.\n"), service_name);
161 } else if (!NT_STATUS_IS_OK(nt_status)) {
162 d_printf(_("Encryption required and "
163 "setup failed with error %s.\n"),
164 nt_errstr(nt_status));
165 }
166
167 if (!NT_STATUS_IS_OK(nt_status)) {
168 cli_shutdown(*cli_ctx);
169 *cli_ctx = NULL;
170 }
171 }
172
173 return nt_status;
174}
175
176/****************************************************************************
177 Connect to \\server\ipc$.
178****************************************************************************/
179
180NTSTATUS connect_to_ipc(struct net_context *c,
181 struct cli_state **cli_ctx,
182 struct sockaddr_storage *server_ss,
183 const char *server_name)
184{
185 return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
186 "IPC");
187}
188
189/****************************************************************************
190 Connect to \\server\ipc$ anonymously.
191****************************************************************************/
192
193NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
194 struct cli_state **cli_ctx,
195 struct sockaddr_storage *server_ss,
196 const char *server_name)
197{
198 NTSTATUS nt_status;
199
200 nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
201 server_name, server_ss, c->opt_port,
202 "IPC$", "IPC",
203 "", "",
204 "", 0, Undefined, NULL);
205
206 if (NT_STATUS_IS_OK(nt_status)) {
207 return nt_status;
208 } else {
209 DEBUG(1,("Cannot connect to server (anonymously). Error was %s\n", nt_errstr(nt_status)));
210 return nt_status;
211 }
212}
213
214/****************************************************************************
215 Return malloced user@realm for krb5 login.
216****************************************************************************/
217
218static char *get_user_and_realm(const char *username)
219{
220 char *user_and_realm = NULL;
221
222 if (!username) {
223 return NULL;
224 }
225 if (strchr_m(username, '@')) {
226 user_and_realm = SMB_STRDUP(username);
227 } else {
228 if (asprintf(&user_and_realm, "%s@%s", username, lp_realm()) == -1) {
229 user_and_realm = NULL;
230 }
231 }
232 return user_and_realm;
233}
234
235/****************************************************************************
236 Connect to \\server\ipc$ using KRB5.
237****************************************************************************/
238
239NTSTATUS connect_to_ipc_krb5(struct net_context *c,
240 struct cli_state **cli_ctx,
241 struct sockaddr_storage *server_ss,
242 const char *server_name)
243{
244 NTSTATUS nt_status;
245 char *user_and_realm = NULL;
246
247 /* FIXME: Should get existing kerberos ticket if possible. */
248 c->opt_password = net_prompt_pass(c, c->opt_user_name);
249 if (!c->opt_password) {
250 return NT_STATUS_NO_MEMORY;
251 }
252
253 user_and_realm = get_user_and_realm(c->opt_user_name);
254 if (!user_and_realm) {
255 return NT_STATUS_NO_MEMORY;
256 }
257
258 nt_status = cli_full_connection(cli_ctx, NULL, server_name,
259 server_ss, c->opt_port,
260 "IPC$", "IPC",
261 user_and_realm, c->opt_workgroup,
262 c->opt_password,
263 CLI_FULL_CONNECTION_USE_KERBEROS,
264 Undefined, NULL);
265
266 SAFE_FREE(user_and_realm);
267
268 if (!NT_STATUS_IS_OK(nt_status)) {
269 DEBUG(1,("Cannot connect to server using kerberos. Error was %s\n", nt_errstr(nt_status)));
270 return nt_status;
271 }
272
273 if (c->smb_encrypt) {
274 nt_status = cli_cm_force_encryption(*cli_ctx,
275 user_and_realm,
276 c->opt_password,
277 c->opt_workgroup,
278 "IPC$");
279 if (!NT_STATUS_IS_OK(nt_status)) {
280 cli_shutdown(*cli_ctx);
281 *cli_ctx = NULL;
282 }
283 }
284
285 return nt_status;
286}
287
288/**
289 * Connect a server and open a given pipe
290 *
291 * @param cli_dst A cli_state
292 * @param pipe The pipe to open
293 * @param got_pipe boolean that stores if we got a pipe
294 *
295 * @return Normal NTSTATUS return.
296 **/
297NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
298 struct rpc_pipe_client **pp_pipe_hnd,
299 const struct ndr_syntax_id *interface)
300{
301 NTSTATUS nt_status;
302 char *server_name = SMB_STRDUP("127.0.0.1");
303 struct cli_state *cli_tmp = NULL;
304 struct rpc_pipe_client *pipe_hnd = NULL;
305
306 if (server_name == NULL) {
307 return NT_STATUS_NO_MEMORY;
308 }
309
310 if (c->opt_destination) {
311 SAFE_FREE(server_name);
312 if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
313 return NT_STATUS_NO_MEMORY;
314 }
315 }
316
317 /* make a connection to a named pipe */
318 nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
319 if (!NT_STATUS_IS_OK(nt_status)) {
320 SAFE_FREE(server_name);
321 return nt_status;
322 }
323
324 nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
325 &pipe_hnd);
326 if (!NT_STATUS_IS_OK(nt_status)) {
327 DEBUG(0, ("couldn't not initialize pipe\n"));
328 cli_shutdown(cli_tmp);
329 SAFE_FREE(server_name);
330 return nt_status;
331 }
332
333 *cli_dst = cli_tmp;
334 *pp_pipe_hnd = pipe_hnd;
335 SAFE_FREE(server_name);
336
337 return nt_status;
338}
339
340/****************************************************************************