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];
52 /* Connect to remote machine */
53 if (!(cli = net_make_ipc_connection(NET_FLAGS_ANONYMOUS | NET_FLAGS_PDC))) {
57 if (!cli_nt_session_open(cli, PI_NETLOGON)) {
58 DEBUG(0,("Error connecting to NETLOGON pipe\n"));
62 if (!secrets_fetch_trust_account_password(domain,
63 stored_md4_trust_password,
65 DEBUG(0,("Could not retreive domain trust secret"));
69 /* ensure that schannel uses the right domain */
70 fstrcpy(cli->domain, domain);
71 if (! NT_STATUS_IS_OK(cli_nt_establish_netlogon(cli, channel, stored_md4_trust_password))) {
72 DEBUG(0,("Error in domain join verfication (fresh connection)\n"));
76 retval = 0; /* Success! */
79 /* Close down pipe - this will clean up open policy handles */
80 if (cli->pipes[cli->pipe_idx].fnum)
81 cli_nt_session_close(cli);
89 * Join a domain using the administrator username and password
91 * @param argc Standard main() style argc
92 * @param argc Standard main() style argv. Initial components are already
93 * stripped. Currently not used.
94 * @return A shell status integer (0 for success)
98 int net_rpc_join_newstyle(int argc, const char **argv)
101 /* libsmb variables */
103 struct cli_state *cli;
105 uint32 acb_info = ACB_WSTRUST;
106 uint32 sec_channel_type;
110 POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
116 char *clear_trust_password = NULL;
118 SAM_USERINFO_CTR ctr;
119 SAM_USER_INFO_24 p24;
120 SAM_USER_INFO_16 p16;
121 uchar md4_trust_password[16];
128 uint32 num_rids, *name_types, *user_rids;
129 uint32 flags = 0x3e8;
131 const char *const_acct_name;
133 /* check what type of join */
135 sec_channel_type = get_sec_channel_type(argv[0]);
137 sec_channel_type = get_sec_channel_type(NULL);
140 switch (sec_channel_type) {
142 acb_info = ACB_WSTRUST;
145 acb_info = ACB_SVRTRUST;
148 case SEC_CHAN_DOMAIN:
149 acb_info = ACB_DOMTRUST;
154 /* Connect to remote machine */
156 if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC)))
159 if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
160 DEBUG(0, ("Could not initialise talloc context\n"));
164 /* Fetch domain sid */
166 if (!cli_nt_session_open(cli, PI_LSARPC)) {
167 DEBUG(0, ("Error connecting to LSA pipe\n"));
172 CHECK_RPC_ERR(cli_lsa_open_policy(cli, mem_ctx, True,
173 SEC_RIGHTS_MAXIMUM_ALLOWED,
175 "error opening lsa policy handle");
177 CHECK_RPC_ERR(cli_lsa_query_info_policy(cli, mem_ctx, &lsa_pol,
178 5, &domain, &domain_sid),
179 "error querying info policy");
181 cli_lsa_close(cli, mem_ctx, &lsa_pol);
183 cli_nt_session_close(cli); /* Done with this pipe */
185 /* Create domain user */
186 if (!cli_nt_session_open(cli, PI_SAMR)) {
187 DEBUG(0, ("Error connecting to SAM pipe\n"));
191 CHECK_RPC_ERR(cli_samr_connect(cli, mem_ctx,
192 SEC_RIGHTS_MAXIMUM_ALLOWED,
194 "could not connect to SAM database");
197 CHECK_RPC_ERR(cli_samr_open_domain(cli, mem_ctx, &sam_pol,
198 SEC_RIGHTS_MAXIMUM_ALLOWED,
199 domain_sid, &domain_pol),
200 "could not open domain");
202 /* Create domain user */
203 acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname());
204 strlower_m(acct_name);
205 const_acct_name = acct_name;
207 result = cli_samr_create_dom_user(cli, mem_ctx, &domain_pol,
209 0xe005000b, &user_pol,
212 if (!NT_STATUS_IS_OK(result) &&
213 !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
214 d_printf("Creation of workstation account failed\n");
216 /* If NT_STATUS_ACCESS_DENIED then we have a valid
217 username/password combo but the user does not have
218 administrator access. */
220 if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED))
221 d_printf("User specified does not have administrator privileges\n");
226 /* We *must* do this.... don't ask... */
228 if (NT_STATUS_IS_OK(result))
229 cli_samr_close(cli, mem_ctx, &user_pol);
231 CHECK_RPC_ERR_DEBUG(cli_samr_lookup_names(cli, mem_ctx,
235 &user_rids, &name_types),
236 ("error looking up rid for user %s: %s\n",
237 acct_name, nt_errstr(result)));
239 if (name_types[0] != SID_NAME_USER) {
240 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name, name_types[0]));
244 user_rid = user_rids[0];
246 /* Open handle on user */
249 cli_samr_open_user(cli, mem_ctx, &domain_pol,
250 SEC_RIGHTS_MAXIMUM_ALLOWED,
251 user_rid, &user_pol),
252 ("could not re-open existing user %s: %s\n",
253 acct_name, nt_errstr(result)));
255 /* Create a random machine account password */
259 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
260 clear_trust_password = SMB_STRDUP(str);
261 E_md4hash(clear_trust_password, md4_trust_password);
264 encode_pw_buffer(pwbuf, clear_trust_password, STR_UNICODE);
266 /* Set password on machine account */
271 init_sam_user_info24(&p24, (char *)pwbuf,24);
273 ctr.switch_value = 24;
274 ctr.info.id24 = &p24;
276 CHECK_RPC_ERR(cli_samr_set_userinfo(cli, mem_ctx, &user_pol, 24,
277 &cli->user_session_key, &ctr),
278 "error setting trust account password");
280 /* Why do we have to try to (re-)set the ACB to be the same as what
281 we passed in the samr_create_dom_user() call? When a NT
282 workstation is joined to a domain by an administrator the
283 acb_info is set to 0x80. For a normal user with "Add
284 workstations to the domain" rights the acb_info is 0x84. I'm
285 not sure whether it is supposed to make a difference or not. NT
286 seems to cope with either value so don't bomb out if the set
287 userinfo2 level 0x10 fails. -tpot */
290 ctr.switch_value = 16;
291 ctr.info.id16 = &p16;
293 init_sam_user_info16(&p16, acb_info);
295 /* Ignoring the return value is necessary for joining a domain
296 as a normal user with "Add workstation to domain" privilege. */
298 result = cli_samr_set_userinfo2(cli, mem_ctx, &user_pol, 16,
299 &cli->user_session_key, &ctr);
301 /* Now check the whole process from top-to-bottom */
302 cli_samr_close(cli, mem_ctx, &user_pol);
303 cli_nt_session_close(cli); /* Done with this pipe */
305 if (!cli_nt_session_open(cli, PI_NETLOGON)) {
306 DEBUG(0,("Error connecting to NETLOGON pipe\n"));
310 /* ensure that schannel uses the right domain */
311 fstrcpy(cli->domain, domain);
313 result = cli_nt_establish_netlogon(cli, sec_channel_type,
316 if (!NT_STATUS_IS_OK(result)) {
317 DEBUG(0, ("Error domain join verification (reused connection): %s\n\n",
320 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
321 (sec_channel_type == SEC_CHAN_BDC) ) {
322 d_printf("Please make sure that no computer account\n"
323 "named like this machine (%s) exists in the domain\n",
330 /* Now store the secret in the secrets database */
334 if (!secrets_store_domain_sid(domain, domain_sid)) {
335 DEBUG(0, ("error storing domain sid for %s\n", domain));
339 if (!secrets_store_machine_password(clear_trust_password, domain, sec_channel_type)) {
340 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
343 /* double-check, connection from scratch */
344 retval = net_rpc_join_ok(domain);
347 /* Close down pipe - this will clean up open policy handles */
349 if (cli->pipes[cli->pipe_idx].fnum)
350 cli_nt_session_close(cli);
352 /* Display success or failure */
355 fprintf(stderr,"Unable to join domain %s.\n",domain);
357 printf("Joined domain %s.\n",domain);
362 SAFE_FREE(clear_trust_password);
369 * check that a join is OK
371 * @return A shell status integer (0 for success)
374 int net_rpc_testjoin(int argc, const char **argv)
376 char *domain = smb_xstrdup(opt_target_workgroup);
378 /* Display success or failure */
379 if (net_rpc_join_ok(domain) != 0) {
380 fprintf(stderr,"Join to domain '%s' is not valid\n",domain);
385 printf("Join to '%s' is OK\n",domain);