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); \
39 * confirm that a domain join is still valid
41 * @return A shell status integer (0 for success)
44 int net_rpc_join_ok(const char *domain
, const char *server
, struct in_addr
*ip
)
46 uint32 neg_flags
= NETLOGON_NEG_AUTH2_FLAGS
|NETLOGON_NEG_SCHANNEL
;
47 struct cli_state
*cli
= NULL
;
48 struct rpc_pipe_client
*pipe_hnd
= NULL
;
49 struct rpc_pipe_client
*netlogon_pipe
= NULL
;
50 NTSTATUS ntret
= NT_STATUS_UNSUCCESSFUL
;
52 /* Connect to remote machine */
53 if (!(cli
= net_make_ipc_connection_ex(domain
, server
, ip
, (NET_FLAGS_ANONYMOUS
|NET_FLAGS_PDC
)))) {
57 /* Setup the creds as though we're going to do schannel... */
58 netlogon_pipe
= get_schannel_session_key(cli
, domain
, &neg_flags
, &ntret
);
60 /* We return NT_STATUS_INVALID_NETWORK_RESPONSE if the server is refusing
61 to negotiate schannel, but the creds were set up ok. That'll have to do. */
64 if (NT_STATUS_EQUAL(ntret
, NT_STATUS_INVALID_NETWORK_RESPONSE
)) {
68 DEBUG(0,("net_rpc_join_ok: failed to get schannel session "
69 "key from server %s for domain %s. Error was %s\n",
70 cli
->desthost
, domain
, nt_errstr(ntret
) ));
76 /* Only do the rest of the schannel test if the client is allowed to do this. */
77 if (!lp_client_schannel()) {
83 pipe_hnd
= cli_rpc_pipe_open_schannel_with_key(cli
, PI_NETLOGON
,
84 PIPE_AUTH_LEVEL_PRIVACY
,
85 domain
, netlogon_pipe
->dc
, &ntret
);
88 DEBUG(0,("net_rpc_join_ok: failed to open schannel session "
89 "on netlogon pipe to server %s for domain %s. Error was %s\n",
90 cli
->desthost
, domain
, nt_errstr(ntret
) ));
100 * Join a domain using the administrator username and password
102 * @param argc Standard main() style argc
103 * @param argc Standard main() style argv. Initial components are already
104 * stripped. Currently not used.
105 * @return A shell status integer (0 for success)
109 int net_rpc_join_newstyle(int argc
, const char **argv
)
112 /* libsmb variables */
114 struct cli_state
*cli
;
116 uint32 acb_info
= ACB_WSTRUST
;
117 uint32 neg_flags
= NETLOGON_NEG_AUTH2_FLAGS
|(lp_client_schannel() ? NETLOGON_NEG_SCHANNEL
: 0);
118 uint32 sec_channel_type
;
119 struct rpc_pipe_client
*pipe_hnd
= NULL
;
123 POLICY_HND lsa_pol
, sam_pol
, domain_pol
, user_pol
;
129 char *clear_trust_password
= NULL
;
131 SAM_USERINFO_CTR ctr
;
132 SAM_USER_INFO_24 p24
;
133 SAM_USER_INFO_16 p16
;
134 uchar md4_trust_password
[16];
141 uint32 num_rids
, *name_types
, *user_rids
;
142 uint32 flags
= 0x3e8;
144 const char *const_acct_name
;
146 /* check what type of join */
148 sec_channel_type
= get_sec_channel_type(argv
[0]);
150 sec_channel_type
= get_sec_channel_type(NULL
);
153 switch (sec_channel_type
) {
155 acb_info
= ACB_WSTRUST
;
158 acb_info
= ACB_SVRTRUST
;
161 case SEC_CHAN_DOMAIN
:
162 acb_info
= ACB_DOMTRUST
;
167 /* Make authenticated connection to remote machine */
169 if (!(cli
= net_make_ipc_connection(NET_FLAGS_PDC
)))
172 if (!(mem_ctx
= talloc_init("net_rpc_join_newstyle"))) {
173 DEBUG(0, ("Could not initialise talloc context\n"));
177 /* Fetch domain sid */
179 pipe_hnd
= cli_rpc_pipe_open_noauth(cli
, PI_LSARPC
, &result
);
181 DEBUG(0, ("Error connecting to LSA pipe. Error was %s\n",
182 nt_errstr(result
) ));
187 CHECK_RPC_ERR(rpccli_lsa_open_policy(pipe_hnd
, mem_ctx
, True
,
188 SEC_RIGHTS_MAXIMUM_ALLOWED
,
190 "error opening lsa policy handle");
192 CHECK_RPC_ERR(rpccli_lsa_query_info_policy(pipe_hnd
, mem_ctx
, &lsa_pol
,
193 5, &domain
, &domain_sid
),
194 "error querying info policy");
196 rpccli_lsa_close(pipe_hnd
, mem_ctx
, &lsa_pol
);
197 cli_rpc_pipe_close(pipe_hnd
); /* Done with this pipe */
199 /* Bail out if domain didn't get set. */
201 DEBUG(0, ("Could not get domain name.\n"));
205 /* Create domain user */
206 pipe_hnd
= cli_rpc_pipe_open_noauth(cli
, PI_SAMR
, &result
);
208 DEBUG(0, ("Error connecting to SAM pipe. Error was %s\n",
209 nt_errstr(result
) ));
213 CHECK_RPC_ERR(rpccli_samr_connect(pipe_hnd
, mem_ctx
,
214 SEC_RIGHTS_MAXIMUM_ALLOWED
,
216 "could not connect to SAM database");
219 CHECK_RPC_ERR(rpccli_samr_open_domain(pipe_hnd
, mem_ctx
, &sam_pol
,
220 SEC_RIGHTS_MAXIMUM_ALLOWED
,
221 domain_sid
, &domain_pol
),
222 "could not open domain");
224 /* Create domain user */
225 if ((acct_name
= talloc_asprintf(mem_ctx
, "%s$", global_myname())) == NULL
) {
226 result
= NT_STATUS_NO_MEMORY
;
229 strlower_m(acct_name
);
230 const_acct_name
= acct_name
;
232 result
= rpccli_samr_create_dom_user(pipe_hnd
, mem_ctx
, &domain_pol
,
234 0xe005000b, &user_pol
,
237 if (!NT_STATUS_IS_OK(result
) &&
238 !NT_STATUS_EQUAL(result
, NT_STATUS_USER_EXISTS
)) {
239 d_fprintf(stderr
, "Creation of workstation account failed\n");
241 /* If NT_STATUS_ACCESS_DENIED then we have a valid
242 username/password combo but the user does not have
243 administrator access. */
245 if (NT_STATUS_V(result
) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED
))
246 d_fprintf(stderr
, "User specified does not have administrator privileges\n");
251 /* We *must* do this.... don't ask... */
253 if (NT_STATUS_IS_OK(result
)) {
254 rpccli_samr_close(pipe_hnd
, mem_ctx
, &user_pol
);
257 CHECK_RPC_ERR_DEBUG(rpccli_samr_lookup_names(pipe_hnd
, mem_ctx
,
261 &user_rids
, &name_types
),
262 ("error looking up rid for user %s: %s\n",
263 acct_name
, nt_errstr(result
)));
265 if (name_types
[0] != SID_NAME_USER
) {
266 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name
, name_types
[0]));
270 user_rid
= user_rids
[0];
272 /* Open handle on user */
275 rpccli_samr_open_user(pipe_hnd
, mem_ctx
, &domain_pol
,
276 SEC_RIGHTS_MAXIMUM_ALLOWED
,
277 user_rid
, &user_pol
),
278 ("could not re-open existing user %s: %s\n",
279 acct_name
, nt_errstr(result
)));
281 /* Create a random machine account password */
285 str
= generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH
);
286 clear_trust_password
= SMB_STRDUP(str
);
287 E_md4hash(clear_trust_password
, md4_trust_password
);
290 encode_pw_buffer(pwbuf
, clear_trust_password
, STR_UNICODE
);
292 /* Set password on machine account */
297 init_sam_user_info24(&p24
, (char *)pwbuf
,24);
299 ctr
.switch_value
= 24;
300 ctr
.info
.id24
= &p24
;
302 CHECK_RPC_ERR(rpccli_samr_set_userinfo(pipe_hnd
, mem_ctx
, &user_pol
, 24,
303 &cli
->user_session_key
, &ctr
),
304 "error setting trust account password");
306 /* Why do we have to try to (re-)set the ACB to be the same as what
307 we passed in the samr_create_dom_user() call? When a NT
308 workstation is joined to a domain by an administrator the
309 acb_info is set to 0x80. For a normal user with "Add
310 workstations to the domain" rights the acb_info is 0x84. I'm
311 not sure whether it is supposed to make a difference or not. NT
312 seems to cope with either value so don't bomb out if the set
313 userinfo2 level 0x10 fails. -tpot */
316 ctr
.switch_value
= 16;
317 ctr
.info
.id16
= &p16
;
319 init_sam_user_info16(&p16
, acb_info
);
321 /* Ignoring the return value is necessary for joining a domain
322 as a normal user with "Add workstation to domain" privilege. */
324 result
= rpccli_samr_set_userinfo2(pipe_hnd
, mem_ctx
, &user_pol
, 16,
325 &cli
->user_session_key
, &ctr
);
327 rpccli_samr_close(pipe_hnd
, mem_ctx
, &user_pol
);
328 cli_rpc_pipe_close(pipe_hnd
); /* Done with this pipe */
330 /* Now check the whole process from top-to-bottom */
332 pipe_hnd
= cli_rpc_pipe_open_noauth(cli
, PI_NETLOGON
, &result
);
334 DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
335 nt_errstr(result
) ));
339 result
= rpccli_netlogon_setup_creds(pipe_hnd
,
340 cli
->desthost
, /* server name */
342 global_myname(), /* client name */
343 global_myname(), /* machine account name */
348 if (!NT_STATUS_IS_OK(result
)) {
349 DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
352 if ( NT_STATUS_EQUAL(result
, NT_STATUS_ACCESS_DENIED
) &&
353 (sec_channel_type
== SEC_CHAN_BDC
) ) {
354 d_fprintf(stderr
, "Please make sure that no computer account\n"
355 "named like this machine (%s) exists in the domain\n",
362 /* We can only check the schannel connection if the client is allowed
363 to do this and the server supports it. If not, just assume success
364 (after all the rpccli_netlogon_setup_creds() succeeded, and we'll
365 do the same again (setup creds) in net_rpc_join_ok(). JRA. */
367 if (lp_client_schannel() && (neg_flags
& NETLOGON_NEG_SCHANNEL
)) {
368 struct rpc_pipe_client
*netlogon_schannel_pipe
=
369 cli_rpc_pipe_open_schannel_with_key(cli
,
371 PIPE_AUTH_LEVEL_PRIVACY
,
376 if (!NT_STATUS_IS_OK(result
)) {
377 DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
380 if ( NT_STATUS_EQUAL(result
, NT_STATUS_ACCESS_DENIED
) &&
381 (sec_channel_type
== SEC_CHAN_BDC
) ) {
382 d_fprintf(stderr
, "Please make sure that no computer account\n"
383 "named like this machine (%s) exists in the domain\n",
389 cli_rpc_pipe_close(netlogon_schannel_pipe
);
392 cli_rpc_pipe_close(pipe_hnd
);
394 /* Now store the secret in the secrets database */
398 if (!secrets_store_domain_sid(domain
, domain_sid
)) {
399 DEBUG(0, ("error storing domain sid for %s\n", domain
));
403 if (!secrets_store_machine_password(clear_trust_password
, domain
, sec_channel_type
)) {
404 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain
));
407 /* double-check, connection from scratch */
408 retval
= net_rpc_join_ok(domain
, cli
->desthost
, &cli
->dest_ip
);
412 /* Display success or failure */
416 fprintf(stderr
,"Unable to join domain %s.\n",domain
);
418 printf("Joined domain %s.\n",domain
);
424 SAFE_FREE(clear_trust_password
);
430 * check that a join is OK
432 * @return A shell status integer (0 for success)
435 int net_rpc_testjoin(int argc
, const char **argv
)
437 char *domain
= smb_xstrdup(opt_target_workgroup
);
439 /* Display success or failure */
440 if (net_rpc_join_ok(domain
, NULL
, NULL
) != 0) {
441 fprintf(stderr
,"Join to domain '%s' is not valid\n",domain
);
446 printf("Join to '%s' is OK\n",domain
);