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 static int net_rpc_join_ok(const char *domain)
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(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 acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname());
226 strlower_m(acct_name);
227 const_acct_name = acct_name;
229 result = rpccli_samr_create_dom_user(pipe_hnd, mem_ctx, &domain_pol,
231 0xe005000b, &user_pol,
234 if (!NT_STATUS_IS_OK(result) &&
235 !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
236 d_fprintf(stderr, "Creation of workstation account failed\n");
238 /* If NT_STATUS_ACCESS_DENIED then we have a valid
239 username/password combo but the user does not have
240 administrator access. */
242 if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED))
243 d_fprintf(stderr, "User specified does not have administrator privileges\n");
248 /* We *must* do this.... don't ask... */
250 if (NT_STATUS_IS_OK(result)) {
251 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
254 CHECK_RPC_ERR_DEBUG(rpccli_samr_lookup_names(pipe_hnd, mem_ctx,
258 &user_rids, &name_types),
259 ("error looking up rid for user %s: %s\n",
260 acct_name, nt_errstr(result)));
262 if (name_types[0] != SID_NAME_USER) {
263 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name, name_types[0]));
267 user_rid = user_rids[0];
269 /* Open handle on user */
272 rpccli_samr_open_user(pipe_hnd, mem_ctx, &domain_pol,
273 SEC_RIGHTS_MAXIMUM_ALLOWED,
274 user_rid, &user_pol),
275 ("could not re-open existing user %s: %s\n",
276 acct_name, nt_errstr(result)));
278 /* Create a random machine account password */
282 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
283 clear_trust_password = SMB_STRDUP(str);
284 E_md4hash(clear_trust_password, md4_trust_password);
287 encode_pw_buffer(pwbuf, clear_trust_password, STR_UNICODE);
289 /* Set password on machine account */
294 init_sam_user_info24(&p24, (char *)pwbuf,24);
296 ctr.switch_value = 24;
297 ctr.info.id24 = &p24;
299 CHECK_RPC_ERR(rpccli_samr_set_userinfo(pipe_hnd, mem_ctx, &user_pol, 24,
300 &cli->user_session_key, &ctr),
301 "error setting trust account password");
303 /* Why do we have to try to (re-)set the ACB to be the same as what
304 we passed in the samr_create_dom_user() call? When a NT
305 workstation is joined to a domain by an administrator the
306 acb_info is set to 0x80. For a normal user with "Add
307 workstations to the domain" rights the acb_info is 0x84. I'm
308 not sure whether it is supposed to make a difference or not. NT
309 seems to cope with either value so don't bomb out if the set
310 userinfo2 level 0x10 fails. -tpot */
313 ctr.switch_value = 16;
314 ctr.info.id16 = &p16;
316 init_sam_user_info16(&p16, acb_info);
318 /* Ignoring the return value is necessary for joining a domain
319 as a normal user with "Add workstation to domain" privilege. */
321 result = rpccli_samr_set_userinfo2(pipe_hnd, mem_ctx, &user_pol, 16,
322 &cli->user_session_key, &ctr);
324 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
325 cli_rpc_pipe_close(pipe_hnd); /* Done with this pipe */
327 /* Now check the whole process from top-to-bottom */
329 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_NETLOGON, &result);
331 DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
332 nt_errstr(result) ));
336 result = rpccli_netlogon_setup_creds(pipe_hnd,
337 cli->desthost, /* server name */
339 global_myname(), /* client name */
340 global_myname(), /* machine account name */
345 if (!NT_STATUS_IS_OK(result)) {
346 DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
349 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
350 (sec_channel_type == SEC_CHAN_BDC) ) {
351 d_fprintf(stderr, "Please make sure that no computer account\n"
352 "named like this machine (%s) exists in the domain\n",
359 /* We can only check the schannel connection if the client is allowed
360 to do this and the server supports it. If not, just assume success
361 (after all the rpccli_netlogon_setup_creds() succeeded, and we'll
362 do the same again (setup creds) in net_rpc_join_ok(). JRA. */
364 if (lp_client_schannel() && (neg_flags & NETLOGON_NEG_SCHANNEL)) {
365 struct rpc_pipe_client *netlogon_schannel_pipe =
366 cli_rpc_pipe_open_schannel_with_key(cli,
368 PIPE_AUTH_LEVEL_PRIVACY,
373 if (!NT_STATUS_IS_OK(result)) {
374 DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
377 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
378 (sec_channel_type == SEC_CHAN_BDC) ) {
379 d_fprintf(stderr, "Please make sure that no computer account\n"
380 "named like this machine (%s) exists in the domain\n",
386 cli_rpc_pipe_close(netlogon_schannel_pipe);
389 cli_rpc_pipe_close(pipe_hnd);
391 /* Now store the secret in the secrets database */
395 if (!secrets_store_domain_sid(domain, domain_sid)) {
396 DEBUG(0, ("error storing domain sid for %s\n", domain));
400 if (!secrets_store_machine_password(clear_trust_password, domain, sec_channel_type)) {
401 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
404 /* double-check, connection from scratch */
405 retval = net_rpc_join_ok(domain);
409 /* Display success or failure */
413 fprintf(stderr,"Unable to join domain %s.\n",domain);
415 printf("Joined domain %s.\n",domain);
421 SAFE_FREE(clear_trust_password);
427 * check that a join is OK
429 * @return A shell status integer (0 for success)
432 int net_rpc_testjoin(int argc, const char **argv)
434 char *domain = smb_xstrdup(opt_target_workgroup);
436 /* Display success or failure */
437 if (net_rpc_join_ok(domain) != 0) {
438 fprintf(stderr,"Join to domain '%s' is not valid\n",domain);
443 printf("Join to '%s' is OK\n",domain);