2 Samba Unix/Linux SMB client library
4 Distributed SMB/CIFS Server Management Utility
5 Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org)
6 Copyright (C) Tim Potter 2001
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
23 #include "../utils/net.h"
25 /* Macro for checking RPC error codes to make things more readable */
27 #define CHECK_RPC_ERR(rpc, msg) \
28 if (!NT_STATUS_IS_OK(result = rpc)) { \
29 DEBUG(0, (msg ": %s\n", get_nt_error_msg(result))); \
33 #define CHECK_RPC_ERR_DEBUG(rpc, debug_args) \
34 if (!NT_STATUS_IS_OK(result = rpc)) { \
35 DEBUG(0, debug_args); \
39 /*********************************************************
40 Join a domain using the administrator username and password
41 **********************************************************/
43 int net_rpc_join(int argc, const char **argv)
46 extern pstring global_myname;
48 /* libsmb variables */
50 struct cli_state *cli;
57 POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
63 char *clear_trust_password = NULL;
64 fstring ucs2_trust_password;
66 uchar stored_md4_trust_password[16];
67 uchar pwbuf[516], sess_key[16];
77 uint32 num_rids, *name_types, *user_rids;
81 /* Connect to remote machine */
83 if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC)))
86 if (!(mem_ctx = talloc_init())) {
87 DEBUG(0, ("Could not initialise talloc context\n"));
91 /* Fetch domain sid */
93 if (!cli_nt_session_open(cli, PIPE_LSARPC)) {
94 DEBUG(0, ("Error connecting to SAM pipe\n"));
99 CHECK_RPC_ERR(cli_lsa_open_policy(cli, mem_ctx, True,
100 SEC_RIGHTS_MAXIMUM_ALLOWED,
102 "error opening lsa policy handle");
104 CHECK_RPC_ERR(cli_lsa_query_info_policy(cli, mem_ctx, &lsa_pol,
105 5, domain, &domain_sid),
106 "error querying info policy");
108 cli_lsa_close(cli, mem_ctx, &lsa_pol);
110 cli_nt_session_close(cli); /* Done with this pipe */
112 /* Create domain user */
113 if (!cli_nt_session_open(cli, PIPE_SAMR)) {
114 DEBUG(0, ("Error connecting to SAM pipe\n"));
118 CHECK_RPC_ERR(cli_samr_connect(cli, mem_ctx,
119 SEC_RIGHTS_MAXIMUM_ALLOWED,
121 "could not connect to SAM database");
124 CHECK_RPC_ERR(cli_samr_open_domain(cli, mem_ctx, &sam_pol,
125 SEC_RIGHTS_MAXIMUM_ALLOWED,
126 &domain_sid, &domain_pol),
127 "could not open domain");
129 /* Create domain user */
130 fstrcpy(acct_name, global_myname);
131 fstrcat(acct_name, "$");
134 acb_info = (lp_server_role() == ROLE_DOMAIN_BDC) ? ACB_SVRTRUST : ACB_WSTRUST;
136 result = cli_samr_create_dom_user(cli, mem_ctx, &domain_pol,
138 0xe005000b, &user_pol,
141 /* We *must* do this.... don't ask... */
142 if (!NT_STATUS_IS_OK(result) &&
143 !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
144 d_printf("Create of workstation account failed\n");
147 cli_samr_close(cli, mem_ctx, &user_pol);
149 names = (char *)&acct_name[0];
151 CHECK_RPC_ERR_DEBUG(cli_samr_lookup_names(cli, mem_ctx,
153 1, &names, &num_rids,
154 &user_rids, &name_types),
155 ("error looking up rid for user %s: %s\n",
156 acct_name, get_nt_error_msg(result)));
158 if (name_types[0] != SID_NAME_USER) {
159 DEBUG(0, ("%s is not a user account\n", acct_name));
163 user_rid = user_rids[0];
165 /* Open handle on user */
168 cli_samr_open_user(cli, mem_ctx, &domain_pol,
169 SEC_RIGHTS_MAXIMUM_ALLOWED,
170 user_rid, &user_pol),
171 ("could not re-open existing user %s: %s\n",
172 acct_name, get_nt_error_msg(result)));
174 /* Create a random machine account password */
178 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
179 clear_trust_password = strdup(str);
182 ucs2_pw_len = push_ucs2(NULL, ucs2_trust_password,
183 clear_trust_password,
184 sizeof(ucs2_trust_password), 0);
186 encode_pw_buffer((char *)pwbuf, ucs2_trust_password,
189 /* Set password on machine account */
194 init_sam_user_info24(&p24, (char *)pwbuf,24);
196 ctr.switch_value = 24;
197 ctr.info.id24 = &p24;
199 /* I don't think this is quite the right place for this
200 calculation. It should be moved somewhere where the credentials
201 are calculated. )-: */
203 mdfour(sess_key, cli->pwd.smb_nt_pwd, 16);
205 CHECK_RPC_ERR(cli_samr_set_userinfo(cli, mem_ctx, &user_pol, 24,
207 "error setting trust account password");
209 /* Why do we have to try to (re-)set the ACB to be the same as what
210 we passed in the samr_create_dom_user() call? When a NT
211 workstation is joined to a domain by an administrator the
212 acb_info is set to 0x80. For a normal user with "Add
213 workstations to the domain" rights the acb_info is 0x84. I'm
214 not sure whether it is supposed to make a difference or not. NT
215 seems to cope with either value so don't bomb out if the set
216 userinfo2 level 0x10 fails. -tpot */
219 ctr.switch_value = 0x10;
220 ctr.info.id10 = &p10;
222 init_sam_user_info10(&p10, acb_info);
224 /* Ignoring the return value is necessary for joining a domain
225 as a normal user with "Add workstation to domain" privilege. */
227 result = cli_samr_set_userinfo2(cli, mem_ctx, &user_pol, 0x10,
230 /* Now store the secret in the secrets database */
234 if (!secrets_store_domain_sid(domain, &domain_sid)) {
235 DEBUG(0, ("error storing domain sid for %s\n", domain));
239 if (!secrets_store_machine_password(clear_trust_password)) {
240 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
243 /* Now check the whole process from top-to-bottom */
245 cli_samr_close(cli, mem_ctx, &user_pol);
247 cli_nt_session_close(cli); /* Done with this pipe */
249 if (!cli_nt_session_open(cli, PIPE_NETLOGON)) {
250 DEBUG(0, ("Error connecting to NETLOGON pipe\n"));
254 if (!secrets_fetch_trust_account_password(domain,
255 stored_md4_trust_password, NULL)) {
256 DEBUG(0, ("Could not reterive secrets we just stored!"));
260 CHECK_RPC_ERR(new_cli_nt_setup_creds(cli, stored_md4_trust_password),
261 "error in domain join verification");
263 retval = 0; /* Success! */
266 /* Close down pipe - this will clean up open policy handles */
268 if (cli->nt_pipe_fnum)
269 cli_nt_session_close(cli);
271 /* Display success or failure */
274 trust_password_delete(domain);
275 fprintf(stderr,"Unable to join domain %s.\n",domain);
277 printf("Joined domain %s.\n",domain);
282 SAFE_FREE(clear_trust_password);