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 3 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, see <http://www.gnu.org/licenses/>. */
21 #include "utils/net.h"
23 /* Macro for checking RPC error codes to make things more readable */
25 #define CHECK_RPC_ERR(rpc, msg) \
26 if (!NT_STATUS_IS_OK(result = rpc)) { \
27 DEBUG(0, (msg ": %s\n", nt_errstr(result))); \
31 #define CHECK_RPC_ERR_DEBUG(rpc, debug_args) \
32 if (!NT_STATUS_IS_OK(result = rpc)) { \
33 DEBUG(0, debug_args); \
38 * confirm that a domain join is still valid
40 * @return A shell status integer (0 for success)
43 int net_rpc_join_ok(const char *domain, const char *server, struct in_addr *ip )
45 uint32 neg_flags = NETLOGON_NEG_AUTH2_FLAGS|NETLOGON_NEG_SCHANNEL;
46 struct cli_state *cli = NULL;
47 struct rpc_pipe_client *pipe_hnd = NULL;
48 struct rpc_pipe_client *netlogon_pipe = NULL;
49 NTSTATUS ntret = NT_STATUS_UNSUCCESSFUL;
51 /* Connect to remote machine */
52 if (!(cli = net_make_ipc_connection_ex(domain, server, ip, (NET_FLAGS_ANONYMOUS|NET_FLAGS_PDC)))) {
56 /* Setup the creds as though we're going to do schannel... */
57 netlogon_pipe = get_schannel_session_key(cli, domain, &neg_flags, &ntret);
59 /* We return NT_STATUS_INVALID_NETWORK_RESPONSE if the server is refusing
60 to negotiate schannel, but the creds were set up ok. That'll have to do. */
63 if (NT_STATUS_EQUAL(ntret, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
67 DEBUG(0,("net_rpc_join_ok: failed to get schannel session "
68 "key from server %s for domain %s. Error was %s\n",
69 cli->desthost, domain, nt_errstr(ntret) ));
75 /* Only do the rest of the schannel test if the client is allowed to do this. */
76 if (!lp_client_schannel()) {
82 pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
83 PIPE_AUTH_LEVEL_PRIVACY,
84 domain, netlogon_pipe->dc, &ntret);
87 DEBUG(0,("net_rpc_join_ok: failed to open schannel session "
88 "on netlogon pipe to server %s for domain %s. Error was %s\n",
89 cli->desthost, domain, nt_errstr(ntret) ));
99 * Join a domain using the administrator username and password
101 * @param argc Standard main() style argc
102 * @param argc Standard main() style argv. Initial components are already
103 * stripped. Currently not used.
104 * @return A shell status integer (0 for success)
108 int net_rpc_join_newstyle(int argc, const char **argv)
111 /* libsmb variables */
113 struct cli_state *cli;
115 uint32 acb_info = ACB_WSTRUST;
116 uint32 neg_flags = NETLOGON_NEG_AUTH2_FLAGS|(lp_client_schannel() ? NETLOGON_NEG_SCHANNEL : 0);
117 uint32 sec_channel_type;
118 struct rpc_pipe_client *pipe_hnd = NULL;
122 POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
128 char *clear_trust_password = NULL;
130 SAM_USERINFO_CTR ctr;
131 SAM_USER_INFO_24 p24;
132 SAM_USER_INFO_16 p16;
133 uchar md4_trust_password[16];
140 uint32 num_rids, *name_types, *user_rids;
141 uint32 flags = 0x3e8;
143 const char *const_acct_name;
145 /* check what type of join */
147 sec_channel_type = get_sec_channel_type(argv[0]);
149 sec_channel_type = get_sec_channel_type(NULL);
152 switch (sec_channel_type) {
154 acb_info = ACB_WSTRUST;
157 acb_info = ACB_SVRTRUST;
160 case SEC_CHAN_DOMAIN:
161 acb_info = ACB_DOMTRUST;
166 /* Make authenticated connection to remote machine */
168 if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC)))
171 if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
172 DEBUG(0, ("Could not initialise talloc context\n"));
176 /* Fetch domain sid */
178 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &result);
180 DEBUG(0, ("Error connecting to LSA pipe. Error was %s\n",
181 nt_errstr(result) ));
186 CHECK_RPC_ERR(rpccli_lsa_open_policy(pipe_hnd, mem_ctx, True,
187 SEC_RIGHTS_MAXIMUM_ALLOWED,
189 "error opening lsa policy handle");
191 CHECK_RPC_ERR(rpccli_lsa_query_info_policy(pipe_hnd, mem_ctx, &lsa_pol,
192 5, &domain, &domain_sid),
193 "error querying info policy");
195 rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
196 cli_rpc_pipe_close(pipe_hnd); /* Done with this pipe */
198 /* Bail out if domain didn't get set. */
200 DEBUG(0, ("Could not get domain name.\n"));
204 /* Create domain user */
205 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &result);
207 DEBUG(0, ("Error connecting to SAM pipe. Error was %s\n",
208 nt_errstr(result) ));
212 CHECK_RPC_ERR(rpccli_samr_connect(pipe_hnd, mem_ctx,
213 SEC_RIGHTS_MAXIMUM_ALLOWED,
215 "could not connect to SAM database");
218 CHECK_RPC_ERR(rpccli_samr_open_domain(pipe_hnd, mem_ctx, &sam_pol,
219 SEC_RIGHTS_MAXIMUM_ALLOWED,
220 domain_sid, &domain_pol),
221 "could not open domain");
223 /* Create domain user */
224 if ((acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname())) == NULL) {
225 result = NT_STATUS_NO_MEMORY;
228 strlower_m(acct_name);
229 const_acct_name = acct_name;
231 result = rpccli_samr_create_dom_user(pipe_hnd, mem_ctx, &domain_pol,
233 0xe005000b, &user_pol,
236 if (!NT_STATUS_IS_OK(result) &&
237 !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
238 d_fprintf(stderr, "Creation of workstation account failed\n");
240 /* If NT_STATUS_ACCESS_DENIED then we have a valid
241 username/password combo but the user does not have
242 administrator access. */
244 if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED))
245 d_fprintf(stderr, "User specified does not have administrator privileges\n");
250 /* We *must* do this.... don't ask... */
252 if (NT_STATUS_IS_OK(result)) {
253 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
256 CHECK_RPC_ERR_DEBUG(rpccli_samr_lookup_names(pipe_hnd, mem_ctx,
260 &user_rids, &name_types),
261 ("error looking up rid for user %s: %s\n",
262 acct_name, nt_errstr(result)));
264 if (name_types[0] != SID_NAME_USER) {
265 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name, name_types[0]));
269 user_rid = user_rids[0];
271 /* Open handle on user */
274 rpccli_samr_open_user(pipe_hnd, mem_ctx, &domain_pol,
275 SEC_RIGHTS_MAXIMUM_ALLOWED,
276 user_rid, &user_pol),
277 ("could not re-open existing user %s: %s\n",
278 acct_name, nt_errstr(result)));
280 /* Create a random machine account password */
284 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
285 clear_trust_password = SMB_STRDUP(str);
286 E_md4hash(clear_trust_password, md4_trust_password);
289 encode_pw_buffer(pwbuf, clear_trust_password, STR_UNICODE);
291 /* Set password on machine account */
296 init_sam_user_info24(&p24, (char *)pwbuf,24);
298 ctr.switch_value = 24;
299 ctr.info.id24 = &p24;
301 CHECK_RPC_ERR(rpccli_samr_set_userinfo(pipe_hnd, mem_ctx, &user_pol, 24,
302 &cli->user_session_key, &ctr),
303 "error setting trust account password");
305 /* Why do we have to try to (re-)set the ACB to be the same as what
306 we passed in the samr_create_dom_user() call? When a NT
307 workstation is joined to a domain by an administrator the
308 acb_info is set to 0x80. For a normal user with "Add
309 workstations to the domain" rights the acb_info is 0x84. I'm
310 not sure whether it is supposed to make a difference or not. NT
311 seems to cope with either value so don't bomb out if the set
312 userinfo2 level 0x10 fails. -tpot */
315 ctr.switch_value = 16;
316 ctr.info.id16 = &p16;
318 init_sam_user_info16(&p16, acb_info);
320 /* Ignoring the return value is necessary for joining a domain
321 as a normal user with "Add workstation to domain" privilege. */
323 result = rpccli_samr_set_userinfo2(pipe_hnd, mem_ctx, &user_pol, 16,
324 &cli->user_session_key, &ctr);
326 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
327 cli_rpc_pipe_close(pipe_hnd); /* Done with this pipe */
329 /* Now check the whole process from top-to-bottom */
331 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_NETLOGON, &result);
333 DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
334 nt_errstr(result) ));
338 result = rpccli_netlogon_setup_creds(pipe_hnd,
339 cli->desthost, /* server name */
341 global_myname(), /* client name */
342 global_myname(), /* machine account name */
347 if (!NT_STATUS_IS_OK(result)) {
348 DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
351 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
352 (sec_channel_type == SEC_CHAN_BDC) ) {
353 d_fprintf(stderr, "Please make sure that no computer account\n"
354 "named like this machine (%s) exists in the domain\n",
361 /* We can only check the schannel connection if the client is allowed
362 to do this and the server supports it. If not, just assume success
363 (after all the rpccli_netlogon_setup_creds() succeeded, and we'll
364 do the same again (setup creds) in net_rpc_join_ok(). JRA. */
366 if (lp_client_schannel() && (neg_flags & NETLOGON_NEG_SCHANNEL)) {
367 struct rpc_pipe_client *netlogon_schannel_pipe =
368 cli_rpc_pipe_open_schannel_with_key(cli,
370 PIPE_AUTH_LEVEL_PRIVACY,
375 if (!NT_STATUS_IS_OK(result)) {
376 DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
379 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
380 (sec_channel_type == SEC_CHAN_BDC) ) {
381 d_fprintf(stderr, "Please make sure that no computer account\n"
382 "named like this machine (%s) exists in the domain\n",
388 cli_rpc_pipe_close(netlogon_schannel_pipe);
391 cli_rpc_pipe_close(pipe_hnd);
393 /* Now store the secret in the secrets database */
397 if (!secrets_store_domain_sid(domain, domain_sid)) {
398 DEBUG(0, ("error storing domain sid for %s\n", domain));
402 if (!secrets_store_machine_password(clear_trust_password, domain, sec_channel_type)) {
403 DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
406 /* double-check, connection from scratch */
407 retval = net_rpc_join_ok(domain, cli->desthost, &cli->dest_ip);
411 /* Display success or failure */
415 fprintf(stderr,"Unable to join domain %s.\n",domain);
417 printf("Joined domain %s.\n",domain);
423 SAFE_FREE(clear_trust_password);
429 * check that a join is OK
431 * @return A shell status integer (0 for success)
434 int net_rpc_testjoin(int argc, const char **argv)
436 char *domain = smb_xstrdup(opt_target_workgroup);
438 /* Display success or failure */
439 if (net_rpc_join_ok(domain, NULL, NULL) != 0) {
440 fprintf(stderr,"Join to domain '%s' is not valid\n",domain);
445 printf("Join to '%s' is OK\n",domain);