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 struct cli_state *cli = NULL;
47 struct rpc_pipe_client *pipe_hnd = NULL;
51 /* Connect to remote machine */
52 if (!(cli = net_make_ipc_connection(NET_FLAGS_ANONYMOUS | NET_FLAGS_PDC))) {
56 pipe_hnd = cli_rpc_pipe_open_schannel(cli, PI_NETLOGON,
57 PIPE_AUTH_LEVEL_PRIVACY,
61 DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n", nt_errstr(ret) ));
65 retval = 0; /* Success! */
74 * Join a domain using the administrator username and password
76 * @param argc Standard main() style argc
77 * @param argc Standard main() style argv. Initial components are already
78 * stripped. Currently not used.
79 * @return A shell status integer (0 for success)
83 int net_rpc_join_newstyle(int argc, const char **argv)
86 /* libsmb variables */
88 struct cli_state *cli;
90 uint32 acb_info = ACB_WSTRUST;
91 uint32 neg_flags = NETLOGON_NEG_AUTH2_FLAGS|(lp_client_schannel() ? NETLOGON_NEG_SCHANNEL : 0);
92 uint32 sec_channel_type;
93 struct rpc_pipe_client *pipe_hnd = NULL;
97 POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
103 char *clear_trust_password = NULL;
105 SAM_USERINFO_CTR ctr;
106 SAM_USER_INFO_24 p24;
107 SAM_USER_INFO_16 p16;
108 uchar md4_trust_password[16];
115 uint32 num_rids, *name_types, *user_rids;
116 uint32 flags = 0x3e8;
118 const char *const_acct_name;
120 /* check what type of join */
122 sec_channel_type = get_sec_channel_type(argv[0]);
124 sec_channel_type = get_sec_channel_type(NULL);
127 switch (sec_channel_type) {
129 acb_info = ACB_WSTRUST;
132 acb_info = ACB_SVRTRUST;
135 case SEC_CHAN_DOMAIN:
136 acb_info = ACB_DOMTRUST;
141 /* Make authenticated connection to remote machine */
143 if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC)))
146 if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
147 DEBUG(0, ("Could not initialise talloc context\n"));
151 /* Fetch domain sid */
153 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &result);
155 DEBUG(0, ("Error connecting to LSA pipe. Error was %s\n",
156 nt_errstr(result) ));
161 CHECK_RPC_ERR(rpccli_lsa_open_policy(pipe_hnd, mem_ctx, True,
162 SEC_RIGHTS_MAXIMUM_ALLOWED,
164 "error opening lsa policy handle");
166 CHECK_RPC_ERR(rpccli_lsa_query_info_policy(pipe_hnd, mem_ctx, &lsa_pol,
167 5, &domain, &domain_sid),
168 "error querying info policy");
170 rpccli_lsa_close(pipe_hnd, mem_ctx, &lsa_pol);
171 cli_rpc_pipe_close(pipe_hnd); /* Done with this pipe */
173 /* Create domain user */
174 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &result);
176 DEBUG(0, ("Error connecting to SAM pipe. Error was %s\n",
177 nt_errstr(result) ));
181 CHECK_RPC_ERR(rpccli_samr_connect(pipe_hnd, mem_ctx,
182 SEC_RIGHTS_MAXIMUM_ALLOWED,
184 "could not connect to SAM database");
187 CHECK_RPC_ERR(rpccli_samr_open_domain(pipe_hnd, mem_ctx, &sam_pol,
188 SEC_RIGHTS_MAXIMUM_ALLOWED,
189 domain_sid, &domain_pol),
190 "could not open domain");
192 /* Create domain user */
193 acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname());
194 strlower_m(acct_name);
195 const_acct_name = acct_name;
197 result = rpccli_samr_create_dom_user(pipe_hnd, mem_ctx, &domain_pol,
199 0xe005000b, &user_pol,
202 if (!NT_STATUS_IS_OK(result) &&
203 !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
204 d_fprintf(stderr, "Creation of workstation account failed\n");
206 /* If NT_STATUS_ACCESS_DENIED then we have a valid
207 username/password combo but the user does not have
208 administrator access. */
210 if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED))
211 d_fprintf(stderr, "User specified does not have administrator privileges\n");
216 /* We *must* do this.... don't ask... */
218 if (NT_STATUS_IS_OK(result)) {
219 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
222 CHECK_RPC_ERR_DEBUG(rpccli_samr_lookup_names(pipe_hnd, mem_ctx,
226 &user_rids, &name_types),
227 ("error looking up rid for user %s: %s\n",
228 acct_name, nt_errstr(result)));
230 if (name_types[0] != SID_NAME_USER) {
231 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name, name_types[0]));
235 user_rid = user_rids[0];
237 /* Open handle on user */
240 rpccli_samr_open_user(pipe_hnd, mem_ctx, &domain_pol,
241 SEC_RIGHTS_MAXIMUM_ALLOWED,
242 user_rid, &user_pol),
243 ("could not re-open existing user %s: %s\n",
244 acct_name, nt_errstr(result)));
246 /* Create a random machine account password */
250 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
251 clear_trust_password = SMB_STRDUP(str);
252 E_md4hash(clear_trust_password, md4_trust_password);
255 encode_pw_buffer(pwbuf, clear_trust_password, STR_UNICODE);
257 /* Set password on machine account */
262 init_sam_user_info24(&p24, (char *)pwbuf,24);
264 ctr.switch_value = 24;
265 ctr.info.id24 = &p24;
267 CHECK_RPC_ERR(rpccli_samr_set_userinfo(pipe_hnd, mem_ctx, &user_pol, 24,
268 &cli->user_session_key, &ctr),
269 "error setting trust account password");
271 /* Why do we have to try to (re-)set the ACB to be the same as what
272 we passed in the samr_create_dom_user() call? When a NT
273 workstation is joined to a domain by an administrator the
274 acb_info is set to 0x80. For a normal user with "Add
275 workstations to the domain" rights the acb_info is 0x84. I'm
276 not sure whether it is supposed to make a difference or not. NT
277 seems to cope with either value so don't bomb out if the set
278 userinfo2 level 0x10 fails. -tpot */
281 ctr.switch_value = 16;
282 ctr.info.id16 = &p16;
284 init_sam_user_info16(&p16, acb_info);
286 /* Ignoring the return value is necessary for joining a domain
287 as a normal user with "Add workstation to domain" privilege. */
289 result = rpccli_samr_set_userinfo2(pipe_hnd, mem_ctx, &user_pol, 16,
290 &cli->user_session_key, &ctr);
292 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
293 cli_rpc_pipe_close(pipe_hnd); /* Done with this pipe */
295 /* Now check the whole process from top-to-bottom */
297 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_NETLOGON, &result);
299 DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
300 nt_errstr(result) ));
304 result = rpccli_netlogon_setup_creds(pipe_hnd,
305 cli->desthost, /* server name */
307 global_myname(), /* client name */
308 global_myname(), /* machine account name */
313 if (!NT_STATUS_IS_OK(result)) {
314 DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
317 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
318 (sec_channel_type == SEC_CHAN_BDC) ) {
319 d_fprintf(stderr, "Please make sure that no computer account\n"
320 "named like this machine (%s) exists in the domain\n",
327 /* We can only check the schannel connection if the client is allowed
328 to do this and the server supports it. If not, just assume success
329 (after all the rpccli_netlogon_setup_creds() succeeded, and we'll
330 do the same again (setup creds) in net_rpc_join_ok(). JRA. */
332 if (lp_client_schannel() && (neg_flags & NETLOGON_NEG_SCHANNEL)) {
333 struct rpc_pipe_client *netlogon_schannel_pipe =
334 cli_rpc_pipe_open_schannel_with_key(cli,
336 PIPE_AUTH_LEVEL_PRIVACY,
341 if (!NT_STATUS_IS_OK(result)) {
342 DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
345 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
346 (sec_channel_type == SEC_CHAN_BDC) ) {
347 d_fprintf(stderr, "Please make sure that no computer account\n"
348 "named like this machine (%s) exists in the domain\n",
354 cli_rpc_pipe_close(netlogon_schannel_pipe);
357 cli_rpc_pipe_close(pipe_hnd);
359 /* Now store the secret in the secrets database */
363 if (!secrets_store_domain_sid(domain, domain_sid)) {
364 DEBUG(0, ("error storing domain sid for %s\n", domain));
368 if (!secrets_store_machine_password(clear_trust_password, domain, sec_channel_type)) {
369 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
372 /* double-check, connection from scratch */
373 retval = net_rpc_join_ok(domain);
377 /* Display success or failure */
380 fprintf(stderr,"Unable to join domain %s.\n",domain);
382 printf("Joined domain %s.\n",domain);
387 SAFE_FREE(clear_trust_password);
393 * check that a join is OK
395 * @return A shell status integer (0 for success)
398 int net_rpc_testjoin(int argc, const char **argv)
400 char *domain = smb_xstrdup(opt_target_workgroup);
402 /* Display success or failure */
403 if (net_rpc_join_ok(domain) != 0) {
404 fprintf(stderr,"Join to domain '%s' is not valid\n",domain);
409 printf("Join to '%s' is OK\n",domain);