2 Samba Unix/Linux SMB client library
3 Distributed SMB/CIFS Server Management Utility
4 Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org)
5 Copyright (C) Tim Potter 2001
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 2 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
22 #include "utils/net.h"
24 /* Macro for checking RPC error codes to make things more readable */
26 #define CHECK_RPC_ERR(rpc, msg) \
27 if (!NT_STATUS_IS_OK(result = rpc)) { \
28 DEBUG(0, (msg ": %s\n", nt_errstr(result))); \
32 #define CHECK_RPC_ERR_DEBUG(rpc, debug_args) \
33 if (!NT_STATUS_IS_OK(result = rpc)) { \
34 DEBUG(0, debug_args); \
40 * confirm that a domain join is still valid
42 * @return A shell status integer (0 for success)
45 static int net_rpc_join_ok(const char *domain
)
47 struct cli_state
*cli
;
48 uchar stored_md4_trust_password
[16];
53 /* Connect to remote machine */
54 if (!(cli
= net_make_ipc_connection(NET_FLAGS_ANONYMOUS
| NET_FLAGS_PDC
))) {
58 if (!cli_nt_session_open(cli
, PI_NETLOGON
)) {
59 DEBUG(0,("Error connecting to NETLOGON pipe\n"));
63 if (!secrets_fetch_trust_account_password(domain
,
64 stored_md4_trust_password
,
66 DEBUG(0,("Could not retreive domain trust secret"));
70 /* ensure that schannel uses the right domain */
71 fstrcpy(cli
->domain
, domain
);
72 if (! NT_STATUS_IS_OK(result
= cli_nt_establish_netlogon(cli
, channel
, stored_md4_trust_password
))) {
73 DEBUG(0,("Error in domain join verfication (fresh connection)\n"));
77 retval
= 0; /* Success! */
80 /* Close down pipe - this will clean up open policy handles */
81 if (cli
->nt_pipe_fnum
)
82 cli_nt_session_close(cli
);
90 * Join a domain using the administrator username and password
92 * @param argc Standard main() style argc
93 * @param argc Standard main() style argv. Initial components are already
94 * stripped. Currently not used.
95 * @return A shell status integer (0 for success)
99 int net_rpc_join_newstyle(int argc
, const char **argv
)
102 /* libsmb variables */
104 struct cli_state
*cli
;
106 uint32 acb_info
= ACB_WSTRUST
;
107 uint32 sec_channel_type
;
111 POLICY_HND lsa_pol
, sam_pol
, domain_pol
, user_pol
;
117 char *clear_trust_password
= NULL
;
119 SAM_USERINFO_CTR ctr
;
120 SAM_USER_INFO_24 p24
;
121 SAM_USER_INFO_10 p10
;
122 uchar md4_trust_password
[16];
129 uint32 num_rids
, *name_types
, *user_rids
;
130 uint32 flags
= 0x3e8;
132 const char *const_acct_name
;
134 /* check what type of join */
136 sec_channel_type
= get_sec_channel_type(argv
[0]);
138 sec_channel_type
= get_sec_channel_type(NULL
);
141 switch (sec_channel_type
) {
143 acb_info
= ACB_WSTRUST
;
146 acb_info
= ACB_SVRTRUST
;
149 case SEC_CHAN_DOMAIN
:
150 acb_info
= ACB_DOMTRUST
;
155 /* Connect to remote machine */
157 if (!(cli
= net_make_ipc_connection(NET_FLAGS_PDC
)))
160 if (!(mem_ctx
= talloc_init("net_rpc_join_newstyle"))) {
161 DEBUG(0, ("Could not initialise talloc context\n"));
165 /* Fetch domain sid */
167 if (!cli_nt_session_open(cli
, PI_LSARPC
)) {
168 DEBUG(0, ("Error connecting to LSA pipe\n"));
173 CHECK_RPC_ERR(cli_lsa_open_policy(cli
, mem_ctx
, True
,
174 SEC_RIGHTS_MAXIMUM_ALLOWED
,
176 "error opening lsa policy handle");
178 CHECK_RPC_ERR(cli_lsa_query_info_policy(cli
, mem_ctx
, &lsa_pol
,
179 5, &domain
, &domain_sid
),
180 "error querying info policy");
182 cli_lsa_close(cli
, mem_ctx
, &lsa_pol
);
184 cli_nt_session_close(cli
); /* Done with this pipe */
186 /* Create domain user */
187 if (!cli_nt_session_open(cli
, PI_SAMR
)) {
188 DEBUG(0, ("Error connecting to SAM pipe\n"));
192 CHECK_RPC_ERR(cli_samr_connect(cli
, mem_ctx
,
193 SEC_RIGHTS_MAXIMUM_ALLOWED
,
195 "could not connect to SAM database");
198 CHECK_RPC_ERR(cli_samr_open_domain(cli
, mem_ctx
, &sam_pol
,
199 SEC_RIGHTS_MAXIMUM_ALLOWED
,
200 domain_sid
, &domain_pol
),
201 "could not open domain");
203 /* Create domain user */
204 acct_name
= talloc_asprintf(mem_ctx
, "%s$", global_myname());
205 strlower_m(acct_name
);
206 const_acct_name
= acct_name
;
208 result
= cli_samr_create_dom_user(cli
, mem_ctx
, &domain_pol
,
210 0xe005000b, &user_pol
,
213 if (!NT_STATUS_IS_OK(result
) &&
214 !NT_STATUS_EQUAL(result
, NT_STATUS_USER_EXISTS
)) {
215 d_printf("Create of workstation account failed\n");
217 /* If NT_STATUS_ACCESS_DENIED then we have a valid
218 username/password combo but the user does not have
219 administrator access. */
221 if (NT_STATUS_V(result
) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED
))
222 d_printf("User specified does not have administrator privileges\n");
227 /* We *must* do this.... don't ask... */
229 if (NT_STATUS_IS_OK(result
))
230 cli_samr_close(cli
, mem_ctx
, &user_pol
);
232 CHECK_RPC_ERR_DEBUG(cli_samr_lookup_names(cli
, mem_ctx
,
236 &user_rids
, &name_types
),
237 ("error looking up rid for user %s: %s\n",
238 acct_name
, nt_errstr(result
)));
240 if (name_types
[0] != SID_NAME_USER
) {
241 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name
, name_types
[0]));
245 user_rid
= user_rids
[0];
247 /* Open handle on user */
250 cli_samr_open_user(cli
, mem_ctx
, &domain_pol
,
251 SEC_RIGHTS_MAXIMUM_ALLOWED
,
252 user_rid
, &user_pol
),
253 ("could not re-open existing user %s: %s\n",
254 acct_name
, nt_errstr(result
)));
256 /* Create a random machine account password */
260 str
= generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH
);
261 clear_trust_password
= strdup(str
);
262 E_md4hash(clear_trust_password
, md4_trust_password
);
265 encode_pw_buffer(pwbuf
, clear_trust_password
, STR_UNICODE
);
267 /* Set password on machine account */
272 init_sam_user_info24(&p24
, (char *)pwbuf
,24);
274 ctr
.switch_value
= 24;
275 ctr
.info
.id24
= &p24
;
277 CHECK_RPC_ERR(cli_samr_set_userinfo(cli
, mem_ctx
, &user_pol
, 24,
278 &cli
->user_session_key
, &ctr
),
279 "error setting trust account password");
281 /* Why do we have to try to (re-)set the ACB to be the same as what
282 we passed in the samr_create_dom_user() call? When a NT
283 workstation is joined to a domain by an administrator the
284 acb_info is set to 0x80. For a normal user with "Add
285 workstations to the domain" rights the acb_info is 0x84. I'm
286 not sure whether it is supposed to make a difference or not. NT
287 seems to cope with either value so don't bomb out if the set
288 userinfo2 level 0x10 fails. -tpot */
291 ctr
.switch_value
= 0x10;
292 ctr
.info
.id10
= &p10
;
294 init_sam_user_info10(&p10
, acb_info
);
296 /* Ignoring the return value is necessary for joining a domain
297 as a normal user with "Add workstation to domain" privilege. */
299 result
= cli_samr_set_userinfo2(cli
, mem_ctx
, &user_pol
, 0x10,
300 &cli
->user_session_key
, &ctr
);
302 /* Now check the whole process from top-to-bottom */
303 cli_samr_close(cli
, mem_ctx
, &user_pol
);
304 cli_nt_session_close(cli
); /* Done with this pipe */
306 if (!cli_nt_session_open(cli
, PI_NETLOGON
)) {
307 DEBUG(0,("Error connecting to NETLOGON pipe\n"));
311 /* ensure that schannel uses the right domain */
312 fstrcpy(cli
->domain
, domain
);
314 result
= cli_nt_establish_netlogon(cli
, sec_channel_type
,
317 if (!NT_STATUS_IS_OK(result
)) {
318 DEBUG(0, ("Error domain join verification (reused connection): %s\n\n",
321 if ( NT_STATUS_EQUAL(result
, NT_STATUS_ACCESS_DENIED
) &&
322 (sec_channel_type
== SEC_CHAN_BDC
) ) {
323 d_printf("Please make sure that no computer account\n"
324 "named like this machine (%s) exists in the domain\n",
331 /* Now store the secret in the secrets database */
335 if (!secrets_store_domain_sid(domain
, domain_sid
)) {
336 DEBUG(0, ("error storing domain sid for %s\n", domain
));
340 if (!secrets_store_machine_password(clear_trust_password
, domain
, sec_channel_type
)) {
341 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain
));
344 /* double-check, connection from scratch */
345 retval
= net_rpc_join_ok(domain
);
348 /* Close down pipe - this will clean up open policy handles */
350 if (cli
->nt_pipe_fnum
)
351 cli_nt_session_close(cli
);
353 /* Display success or failure */
356 fprintf(stderr
,"Unable to join domain %s.\n",domain
);
358 printf("Joined domain %s.\n",domain
);
363 SAFE_FREE(clear_trust_password
);
370 * check that a join is OK
372 * @return A shell status integer (0 for success)
375 int net_rpc_testjoin(int argc
, const char **argv
)
377 char *domain
= smb_xstrdup(opt_target_workgroup
);
379 /* Display success or failure */
380 if (net_rpc_join_ok(domain
) != 0) {
381 fprintf(stderr
,"Join to domain '%s' is not valid\n",domain
);
386 printf("Join to '%s' is OK\n",domain
);