2 Unix SMB/CIFS implementation.
3 client connect/disconnect routines
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Andrew Bartlett 2001-2003
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.
31 {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
32 {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
33 {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
34 {PROTOCOL_LANMAN1,"LANMAN1.0"},
35 {PROTOCOL_LANMAN2,"LM1.2X002"},
36 {PROTOCOL_LANMAN2,"DOS LANMAN2.1"},
37 {PROTOCOL_LANMAN2,"Samba"},
38 {PROTOCOL_NT1,"NT LANMAN 1.0"},
39 {PROTOCOL_NT1,"NT LM 0.12"},
43 /****************************************************************************
44 Do an old lanman2 style session setup.
45 ****************************************************************************/
47 static BOOL cli_session_setup_lanman2(struct cli_state *cli, const char *user,
48 const char *pass, size_t passlen, const char *workgroup)
53 if (passlen > sizeof(pword)-1)
56 /* if in share level security then don't send a password now */
57 if (!(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL))
60 if (passlen > 0 && (cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen != 24) {
61 /* Encrypted mode needed, and non encrypted password supplied. */
63 SMBencrypt(pass,cli->secblob.data,(uchar *)pword);
64 } else if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen == 24) {
65 /* Encrypted mode needed, and encrypted password supplied. */
66 memcpy(pword, pass, passlen);
67 } else if (passlen > 0) {
68 /* Plaintext mode needed, assume plaintext supplied. */
69 passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
72 /* send a session setup command */
73 memset(cli->outbuf,'\0',smb_size);
74 set_message(cli->outbuf,10, 0, True);
75 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
76 cli_setup_packet(cli);
78 SCVAL(cli->outbuf,smb_vwv0,0xFF);
79 SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
80 SSVAL(cli->outbuf,smb_vwv3,2);
81 SSVAL(cli->outbuf,smb_vwv4,1);
82 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
83 SSVAL(cli->outbuf,smb_vwv7,passlen);
85 p = smb_buf(cli->outbuf);
86 memcpy(p,pword,passlen);
88 p += clistr_push(cli, p, user, -1, STR_TERMINATE|STR_UPPER);
89 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
90 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
91 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
92 cli_setup_bcc(cli, p);
95 if (!cli_receive_smb(cli))
100 if (cli_is_error(cli))
103 /* use the returned vuid from now on */
104 cli->vuid = SVAL(cli->inbuf,smb_uid);
105 fstrcpy(cli->user_name, user);
110 /****************************************************************************
111 Work out suitable capabilities to offer the server.
112 ****************************************************************************/
114 static uint32 cli_session_setup_capabilities(struct cli_state *cli)
116 uint32 capabilities = CAP_NT_SMBS;
118 if (!cli->force_dos_errors)
119 capabilities |= CAP_STATUS32;
121 if (cli->use_level_II_oplocks)
122 capabilities |= CAP_LEVEL_II_OPLOCKS;
124 if (cli->capabilities & CAP_UNICODE)
125 capabilities |= CAP_UNICODE;
127 if (cli->capabilities & CAP_LARGE_FILES)
128 capabilities |= CAP_LARGE_FILES;
133 /****************************************************************************
134 Do a NT1 guest session setup.
135 ****************************************************************************/
137 static BOOL cli_session_setup_guest(struct cli_state *cli)
140 uint32 capabilities = cli_session_setup_capabilities(cli);
142 set_message(cli->outbuf,13,0,True);
143 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
144 cli_setup_packet(cli);
146 SCVAL(cli->outbuf,smb_vwv0,0xFF);
147 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
148 SSVAL(cli->outbuf,smb_vwv3,2);
149 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
150 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
151 SSVAL(cli->outbuf,smb_vwv7,0);
152 SSVAL(cli->outbuf,smb_vwv8,0);
153 SIVAL(cli->outbuf,smb_vwv11,capabilities);
154 p = smb_buf(cli->outbuf);
155 p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* username */
156 p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* workgroup */
157 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
158 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
159 cli_setup_bcc(cli, p);
162 if (!cli_receive_smb(cli))
165 show_msg(cli->inbuf);
167 if (cli_is_error(cli))
170 cli->vuid = SVAL(cli->inbuf,smb_uid);
172 p = smb_buf(cli->inbuf);
173 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
174 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
175 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
177 fstrcpy(cli->user_name, "");
182 /****************************************************************************
183 Do a NT1 plaintext session setup.
184 ****************************************************************************/
186 static BOOL cli_session_setup_plaintext(struct cli_state *cli, const char *user,
187 const char *pass, const char *workgroup)
189 uint32 capabilities = cli_session_setup_capabilities(cli);
193 fstr_sprintf( lanman, "Samba %s", VERSION );
195 set_message(cli->outbuf,13,0,True);
196 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
197 cli_setup_packet(cli);
199 SCVAL(cli->outbuf,smb_vwv0,0xFF);
200 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
201 SSVAL(cli->outbuf,smb_vwv3,2);
202 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
203 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
204 SSVAL(cli->outbuf,smb_vwv8,0);
205 SIVAL(cli->outbuf,smb_vwv11,capabilities);
206 p = smb_buf(cli->outbuf);
208 /* check wether to send the ASCII or UNICODE version of the password */
210 if ( (capabilities & CAP_UNICODE) == 0 ) {
211 p += clistr_push(cli, p, pass, -1, STR_TERMINATE); /* password */
212 SSVAL(cli->outbuf,smb_vwv7,PTR_DIFF(p, smb_buf(cli->outbuf)));
215 p += clistr_push(cli, p, pass, -1, STR_UNICODE|STR_TERMINATE); /* unicode password */
216 SSVAL(cli->outbuf,smb_vwv8,PTR_DIFF(p, smb_buf(cli->outbuf)));
219 p += clistr_push(cli, p, user, -1, STR_TERMINATE); /* username */
220 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE); /* workgroup */
221 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
222 p += clistr_push(cli, p, lanman, -1, STR_TERMINATE);
223 cli_setup_bcc(cli, p);
226 if (!cli_receive_smb(cli))
229 show_msg(cli->inbuf);
231 if (cli_is_error(cli))
234 cli->vuid = SVAL(cli->inbuf,smb_uid);
235 p = smb_buf(cli->inbuf);
236 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
237 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
238 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
239 fstrcpy(cli->user_name, user);
244 static void set_cli_session_key (struct cli_state *cli, DATA_BLOB session_key)
246 memcpy(cli->user_session_key, session_key.data, MIN(session_key.length, sizeof(cli->user_session_key)));
249 /****************************************************************************
250 do a NT1 NTLM/LM encrypted session setup
251 @param cli client state to create do session setup on
253 @param pass *either* cleartext password (passlen !=24) or LM response.
254 @param ntpass NT response, implies ntpasslen >=24, implies pass is not clear
255 @param workgroup The user's domain.
256 ****************************************************************************/
258 static BOOL cli_session_setup_nt1(struct cli_state *cli, const char *user,
259 const char *pass, size_t passlen,
260 const char *ntpass, size_t ntpasslen,
261 const char *workgroup)
263 uint32 capabilities = cli_session_setup_capabilities(cli);
264 DATA_BLOB lm_response = data_blob(NULL, 0);
265 DATA_BLOB nt_response = data_blob(NULL, 0);
266 DATA_BLOB session_key = data_blob(NULL, 0);
271 if (lp_client_ntlmv2_auth()) {
272 DATA_BLOB server_chal;
273 DATA_BLOB names_blob;
274 server_chal = data_blob(cli->secblob.data, MIN(cli->secblob.length, 8));
276 /* note that the 'workgroup' here is a best guess - we don't know
277 the server's domain at this point. The 'server name' is also
280 names_blob = NTLMv2_generate_names_blob(cli->called.name, workgroup);
282 if (!SMBNTLMv2encrypt(user, workgroup, pass, &server_chal,
284 &lm_response, &nt_response, &session_key)) {
285 data_blob_free(&names_blob);
286 data_blob_free(&server_chal);
289 data_blob_free(&names_blob);
290 data_blob_free(&server_chal);
294 E_md4hash(pass, nt_hash);
296 nt_response = data_blob(NULL, 24);
297 SMBNTencrypt(pass,cli->secblob.data,nt_response.data);
299 /* non encrypted password supplied. Ignore ntpass. */
300 if (lp_client_lanman_auth()) {
301 lm_response = data_blob(NULL, 24);
302 SMBencrypt(pass,cli->secblob.data, lm_response.data);
304 /* LM disabled, place NT# in LM field instead */
305 lm_response = data_blob(nt_response.data, nt_response.length);
308 session_key = data_blob(NULL, 16);
309 SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
311 cli_simple_set_signing(cli, session_key.data, nt_response);
313 /* pre-encrypted password supplied. Only used for
314 security=server, can't do
315 signing because we don't have original key */
317 lm_response = data_blob(pass, passlen);
318 nt_response = data_blob(ntpass, ntpasslen);
321 /* send a session setup command */
322 memset(cli->outbuf,'\0',smb_size);
324 set_message(cli->outbuf,13,0,True);
325 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
326 cli_setup_packet(cli);
328 SCVAL(cli->outbuf,smb_vwv0,0xFF);
329 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
330 SSVAL(cli->outbuf,smb_vwv3,2);
331 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
332 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
333 SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
334 SSVAL(cli->outbuf,smb_vwv8,nt_response.length);
335 SIVAL(cli->outbuf,smb_vwv11,capabilities);
336 p = smb_buf(cli->outbuf);
337 if (lm_response.length) {
338 memcpy(p,lm_response.data, lm_response.length); p += lm_response.length;
340 if (nt_response.length) {
341 memcpy(p,nt_response.data, nt_response.length); p += nt_response.length;
343 p += clistr_push(cli, p, user, -1, STR_TERMINATE);
344 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE);
345 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
346 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
347 cli_setup_bcc(cli, p);
349 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
354 show_msg(cli->inbuf);
356 if (cli_is_error(cli)) {
361 /* use the returned vuid from now on */
362 cli->vuid = SVAL(cli->inbuf,smb_uid);
364 p = smb_buf(cli->inbuf);
365 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
366 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
367 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
369 fstrcpy(cli->user_name, user);
371 if (session_key.data) {
372 /* Have plaintext orginal */
373 set_cli_session_key(cli, session_key);
378 data_blob_free(&lm_response);
379 data_blob_free(&nt_response);
380 data_blob_free(&session_key);
384 /****************************************************************************
385 Send a extended security session setup blob
386 ****************************************************************************/
388 static BOOL cli_session_setup_blob_send(struct cli_state *cli, DATA_BLOB blob)
390 uint32 capabilities = cli_session_setup_capabilities(cli);
393 capabilities |= CAP_EXTENDED_SECURITY;
395 /* send a session setup command */
396 memset(cli->outbuf,'\0',smb_size);
398 set_message(cli->outbuf,12,0,True);
399 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
401 cli_setup_packet(cli);
403 SCVAL(cli->outbuf,smb_vwv0,0xFF);
404 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
405 SSVAL(cli->outbuf,smb_vwv3,2);
406 SSVAL(cli->outbuf,smb_vwv4,1);
407 SIVAL(cli->outbuf,smb_vwv5,0);
408 SSVAL(cli->outbuf,smb_vwv7,blob.length);
409 SIVAL(cli->outbuf,smb_vwv10,capabilities);
410 p = smb_buf(cli->outbuf);
411 memcpy(p, blob.data, blob.length);
413 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
414 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
415 cli_setup_bcc(cli, p);
416 return cli_send_smb(cli);
419 /****************************************************************************
420 Send a extended security session setup blob, returning a reply blob.
421 ****************************************************************************/
423 static DATA_BLOB cli_session_setup_blob_receive(struct cli_state *cli)
425 DATA_BLOB blob2 = data_blob(NULL, 0);
429 if (!cli_receive_smb(cli))
432 show_msg(cli->inbuf);
434 if (cli_is_error(cli) && !NT_STATUS_EQUAL(cli_nt_error(cli),
435 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
439 /* use the returned vuid from now on */
440 cli->vuid = SVAL(cli->inbuf,smb_uid);
442 p = smb_buf(cli->inbuf);
444 blob2 = data_blob(p, SVAL(cli->inbuf, smb_vwv3));
447 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
449 /* w2k with kerberos doesn't properly null terminate this field */
450 len = smb_buflen(cli->inbuf) - PTR_DIFF(p, smb_buf(cli->inbuf));
451 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), len, 0);
458 /****************************************************************************
459 Send a extended security session setup blob, returning a reply blob.
460 ****************************************************************************/
462 static DATA_BLOB cli_session_setup_blob(struct cli_state *cli, DATA_BLOB blob)
464 DATA_BLOB blob2 = data_blob(NULL, 0);
465 if (!cli_session_setup_blob_send(cli, blob)) {
469 return cli_session_setup_blob_receive(cli);
472 /****************************************************************************
473 Use in-memory credentials cache
474 ****************************************************************************/
476 static void use_in_memory_ccache(void) {
477 setenv(KRB5_ENV_CCNAME, "MEMORY:cliconnect", 1);
480 /****************************************************************************
481 Do a spnego/kerberos encrypted session setup.
482 ****************************************************************************/
484 static BOOL cli_session_setup_kerberos(struct cli_state *cli, const char *principal, const char *workgroup)
486 DATA_BLOB blob2, negTokenTarg;
487 unsigned char session_key_krb5[16];
488 DATA_BLOB null_blob = data_blob(NULL, 0);
490 DEBUG(2,("Doing kerberos session setup\n"));
492 /* generate the encapsulated kerberos5 ticket */
493 negTokenTarg = spnego_gen_negTokenTarg(principal, 0, session_key_krb5);
495 if (!negTokenTarg.data)
499 file_save("negTokenTarg.dat", negTokenTarg.data, negTokenTarg.length);
502 cli_simple_set_signing(cli, session_key_krb5, null_blob);
504 blob2 = cli_session_setup_blob(cli, negTokenTarg);
506 /* we don't need this blob for kerberos */
507 data_blob_free(&blob2);
509 data_blob_free(&negTokenTarg);
511 return !cli_is_error(cli);
513 #endif /* HAVE_KRB5 */
516 /****************************************************************************
517 Do a spnego/NTLMSSP encrypted session setup.
518 ****************************************************************************/
520 static BOOL cli_session_setup_ntlmssp(struct cli_state *cli, const char *user,
521 const char *pass, const char *workgroup)
523 struct ntlmssp_client_state *ntlmssp_state;
528 DATA_BLOB blob_in = data_blob(NULL, 0);
531 cli_temp_set_signing(cli);
533 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_client_start(&ntlmssp_state))) {
537 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_username(ntlmssp_state, user))) {
540 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_domain(ntlmssp_state, workgroup))) {
543 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_password(ntlmssp_state, pass))) {
547 ntlmssp_state->use_ntlmv2 = lp_client_ntlmv2_auth();
549 if (cli->sign_info.negotiated_smb_signing
550 || cli->sign_info.mandatory_signing) {
551 ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
552 ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
556 nt_status = ntlmssp_client_update(ntlmssp_state,
558 data_blob_free(&blob_in);
559 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
560 DATA_BLOB null_blob = data_blob(NULL, 0);
562 /* and wrap it in a SPNEGO wrapper */
563 msg1 = gen_negTokenInit(OID_NTLMSSP, blob_out);
565 /* wrap it in SPNEGO */
566 msg1 = spnego_gen_auth(blob_out);
569 cli_simple_set_signing(cli,
570 ntlmssp_state->session_key.data,
573 /* now send that blob on its way */
574 if (!cli_session_setup_blob_send(cli, msg1)) {
577 data_blob_free(&msg1);
579 blob = cli_session_setup_blob_receive(cli);
581 nt_status = cli_nt_error(cli);
585 if (NT_STATUS_IS_OK(nt_status)) {
586 nt_status = NT_STATUS_UNSUCCESSFUL;
588 } else if ((turn == 1) &&
589 NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
590 DATA_BLOB tmp_blob = data_blob(NULL, 0);
591 /* the server might give us back two challenges */
592 if (!spnego_parse_challenge(blob, &blob_in,
594 DEBUG(3,("Failed to parse challenges\n"));
595 nt_status = NT_STATUS_INVALID_PARAMETER;
597 data_blob_free(&tmp_blob);
599 if (!spnego_parse_auth_response(blob, nt_status,
601 DEBUG(3,("Failed to parse auth response\n"));
602 if (NT_STATUS_IS_OK(nt_status)
603 || NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED))
604 nt_status = NT_STATUS_INVALID_PARAMETER;
607 data_blob_free(&blob);
608 data_blob_free(&blob_out);
610 } while (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED));
612 if (NT_STATUS_IS_OK(nt_status)) {
613 set_cli_session_key(cli, ntlmssp_state->session_key);
616 /* we have a reference conter on ntlmssp_state, if we are signing
617 then the state will be kept by the signing engine */
619 if (!NT_STATUS_IS_OK(ntlmssp_client_end(&ntlmssp_state))) {
623 return (NT_STATUS_IS_OK(nt_status));
626 /****************************************************************************
627 Do a spnego encrypted session setup.
628 ****************************************************************************/
630 static BOOL cli_session_setup_spnego(struct cli_state *cli, const char *user,
631 const char *pass, const char *workgroup)
634 char *OIDs[ASN1_MAX_OIDS];
636 BOOL got_kerberos_mechanism = False;
639 DEBUG(2,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli->secblob.length));
641 /* the server might not even do spnego */
642 if (cli->secblob.length <= 16) {
643 DEBUG(3,("server didn't supply a full spnego negprot\n"));
648 file_save("negprot.dat", cli->secblob.data, cli->secblob.length);
651 /* there is 16 bytes of GUID before the real spnego packet starts */
652 blob = data_blob(cli->secblob.data+16, cli->secblob.length-16);
654 /* the server sent us the first part of the SPNEGO exchange in the negprot
656 if (!spnego_parse_negTokenInit(blob, OIDs, &principal)) {
657 data_blob_free(&blob);
660 data_blob_free(&blob);
662 /* make sure the server understands kerberos */
663 for (i=0;OIDs[i];i++) {
664 DEBUG(3,("got OID=%s\n", OIDs[i]));
665 if (strcmp(OIDs[i], OID_KERBEROS5_OLD) == 0 ||
666 strcmp(OIDs[i], OID_KERBEROS5) == 0) {
667 got_kerberos_mechanism = True;
671 DEBUG(3,("got principal=%s\n", principal));
673 fstrcpy(cli->user_name, user);
676 /* If password is set we reauthenticate to kerberos server
677 * and do not store results */
679 if (got_kerberos_mechanism && cli->use_kerberos) {
683 use_in_memory_ccache();
684 ret = kerberos_kinit_password(user, pass, 0 /* no time correction for now */);
687 DEBUG(0, ("Kinit failed: %s\n", error_message(ret)));
692 return cli_session_setup_kerberos(cli, principal, workgroup);
700 return cli_session_setup_ntlmssp(cli, user, pass, workgroup);
703 /****************************************************************************
704 Send a session setup. The username and workgroup is in UNIX character
705 format and must be converted to DOS codepage format before sending. If the
706 password is in plaintext, the same should be done.
707 ****************************************************************************/
709 BOOL cli_session_setup(struct cli_state *cli,
711 const char *pass, int passlen,
712 const char *ntpass, int ntpasslen,
713 const char *workgroup)
718 /* allow for workgroups as part of the username */
719 fstrcpy(user2, user);
720 if ((p=strchr_m(user2,'\\')) || (p=strchr_m(user2,'/')) ||
721 (p=strchr_m(user2,*lp_winbind_separator()))) {
727 if (cli->protocol < PROTOCOL_LANMAN1)
730 /* now work out what sort of session setup we are going to
731 do. I have split this into separate functions to make the
732 flow a bit easier to understand (tridge) */
734 /* if its an older server then we have to use the older request format */
736 if (cli->protocol < PROTOCOL_NT1) {
737 if (!lp_client_lanman_auth() && passlen != 24 && (*pass)) {
738 DEBUG(1, ("Server requested LM password but 'client lanman auth'"
743 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0 &&
744 !lp_client_plaintext_auth() && (*pass)) {
745 DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
750 return cli_session_setup_lanman2(cli, user, pass, passlen, workgroup);
753 /* if no user is supplied then we have to do an anonymous connection.
754 passwords are ignored */
757 return cli_session_setup_guest(cli);
759 /* if the server is share level then send a plaintext null
760 password at this point. The password is sent in the tree
763 if ((cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) == 0)
764 return cli_session_setup_plaintext(cli, user, "", workgroup);
766 /* if the server doesn't support encryption then we have to use
767 plaintext. The second password is ignored */
769 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
770 if (!lp_client_plaintext_auth() && (*pass)) {
771 DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
775 return cli_session_setup_plaintext(cli, user, pass, workgroup);
778 /* if the server supports extended security then use SPNEGO */
780 if (cli->capabilities & CAP_EXTENDED_SECURITY)
781 return cli_session_setup_spnego(cli, user, pass, workgroup);
783 /* otherwise do a NT1 style session setup */
785 return cli_session_setup_nt1(cli, user,
786 pass, passlen, ntpass, ntpasslen,
790 /****************************************************************************
792 *****************************************************************************/
794 BOOL cli_ulogoff(struct cli_state *cli)
796 memset(cli->outbuf,'\0',smb_size);
797 set_message(cli->outbuf,2,0,True);
798 SCVAL(cli->outbuf,smb_com,SMBulogoffX);
799 cli_setup_packet(cli);
800 SSVAL(cli->outbuf,smb_vwv0,0xFF);
801 SSVAL(cli->outbuf,smb_vwv2,0); /* no additional info */
804 if (!cli_receive_smb(cli))
807 return !cli_is_error(cli);
810 /****************************************************************************
812 ****************************************************************************/
813 BOOL cli_send_tconX(struct cli_state *cli,
814 const char *share, const char *dev, const char *pass, int passlen)
816 fstring fullshare, pword;
818 memset(cli->outbuf,'\0',smb_size);
819 memset(cli->inbuf,'\0',smb_size);
821 fstrcpy(cli->share, share);
823 /* in user level security don't send a password now */
824 if (cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
829 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && *pass && passlen != 24) {
830 if (!lp_client_lanman_auth()) {
831 DEBUG(1, ("Server requested LANMAN password but 'client use lanman auth'"
837 * Non-encrypted passwords - convert to DOS codepage before encryption.
840 SMBencrypt(pass,cli->secblob.data,(uchar *)pword);
842 if((cli->sec_mode & (NEGOTIATE_SECURITY_USER_LEVEL|NEGOTIATE_SECURITY_CHALLENGE_RESPONSE)) == 0) {
843 if (!lp_client_plaintext_auth() && (*pass)) {
844 DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
850 * Non-encrypted passwords - convert to DOS codepage before using.
852 passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
855 memcpy(pword, pass, passlen);
859 slprintf(fullshare, sizeof(fullshare)-1,
860 "\\\\%s\\%s", cli->desthost, share);
862 set_message(cli->outbuf,4, 0, True);
863 SCVAL(cli->outbuf,smb_com,SMBtconX);
864 cli_setup_packet(cli);
866 SSVAL(cli->outbuf,smb_vwv0,0xFF);
867 SSVAL(cli->outbuf,smb_vwv3,passlen);
869 p = smb_buf(cli->outbuf);
870 memcpy(p,pword,passlen);
872 p += clistr_push(cli, p, fullshare, -1, STR_TERMINATE |STR_UPPER);
873 fstrcpy(p, dev); p += strlen(dev)+1;
875 cli_setup_bcc(cli, p);
878 if (!cli_receive_smb(cli))
881 if (cli_is_error(cli))
884 clistr_pull(cli, cli->dev, smb_buf(cli->inbuf), sizeof(fstring), -1, STR_TERMINATE|STR_ASCII);
886 if (cli->protocol >= PROTOCOL_NT1 &&
887 smb_buflen(cli->inbuf) == 3) {
888 /* almost certainly win95 - enable bug fixes */
892 cli->cnum = SVAL(cli->inbuf,smb_tid);
896 /****************************************************************************
897 Send a tree disconnect.
898 ****************************************************************************/
900 BOOL cli_tdis(struct cli_state *cli)
902 memset(cli->outbuf,'\0',smb_size);
903 set_message(cli->outbuf,0,0,True);
904 SCVAL(cli->outbuf,smb_com,SMBtdis);
905 SSVAL(cli->outbuf,smb_tid,cli->cnum);
906 cli_setup_packet(cli);
909 if (!cli_receive_smb(cli))
912 return !cli_is_error(cli);
915 /****************************************************************************
916 Send a negprot command.
917 ****************************************************************************/
919 void cli_negprot_send(struct cli_state *cli)
924 if (cli->protocol < PROTOCOL_NT1)
925 cli->use_spnego = False;
927 memset(cli->outbuf,'\0',smb_size);
929 /* setup the protocol strings */
930 set_message(cli->outbuf,0,0,True);
932 p = smb_buf(cli->outbuf);
934 prots[numprots].name && prots[numprots].prot<=cli->protocol;
937 p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
940 SCVAL(cli->outbuf,smb_com,SMBnegprot);
941 cli_setup_bcc(cli, p);
942 cli_setup_packet(cli);
944 SCVAL(smb_buf(cli->outbuf),0,2);
949 /****************************************************************************
950 Send a negprot command.
951 ****************************************************************************/
953 BOOL cli_negprot(struct cli_state *cli)
959 if (cli->protocol < PROTOCOL_NT1)
960 cli->use_spnego = False;
962 memset(cli->outbuf,'\0',smb_size);
964 /* setup the protocol strings */
965 for (plength=0,numprots=0;
966 prots[numprots].name && prots[numprots].prot<=cli->protocol;
968 plength += strlen(prots[numprots].name)+2;
970 set_message(cli->outbuf,0,plength,True);
972 p = smb_buf(cli->outbuf);
974 prots[numprots].name && prots[numprots].prot<=cli->protocol;
977 p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
980 SCVAL(cli->outbuf,smb_com,SMBnegprot);
981 cli_setup_packet(cli);
983 SCVAL(smb_buf(cli->outbuf),0,2);
986 if (!cli_receive_smb(cli))
989 show_msg(cli->inbuf);
991 if (cli_is_error(cli) ||
992 ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
996 cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot;
998 if ((cli->protocol < PROTOCOL_NT1) && cli->sign_info.mandatory_signing) {
999 DEBUG(1,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
1003 if (cli->protocol >= PROTOCOL_NT1) {
1005 cli->sec_mode = CVAL(cli->inbuf,smb_vwv1);
1006 cli->max_mux = SVAL(cli->inbuf, smb_vwv1+1);
1007 cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1);
1008 cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1);
1009 cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1);
1010 cli->serverzone *= 60;
1011 /* this time arrives in real GMT */
1012 cli->servertime = interpret_long_date(cli->inbuf+smb_vwv11+1);
1013 cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
1014 cli->capabilities = IVAL(cli->inbuf,smb_vwv9+1);
1015 if (cli->capabilities & CAP_RAW_MODE) {
1016 cli->readbraw_supported = True;
1017 cli->writebraw_supported = True;
1019 /* work out if they sent us a workgroup */
1020 if (!(cli->capabilities & CAP_EXTENDED_SECURITY) &&
1021 smb_buflen(cli->inbuf) > 8) {
1022 clistr_pull(cli, cli->server_domain,
1023 smb_buf(cli->inbuf)+8, sizeof(cli->server_domain),
1024 smb_buflen(cli->inbuf)-8, STR_UNICODE|STR_NOALIGN);
1027 if ((cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED)) {
1028 /* Fail if signing is mandatory and we don't want to support it. */
1029 if (!cli->sign_info.allow_smb_signing) {
1030 DEBUG(1,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
1033 cli->sign_info.negotiated_smb_signing = True;
1036 if ((cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) && cli->sign_info.allow_smb_signing)
1037 cli->sign_info.negotiated_smb_signing = True;
1039 /* Fail if signing is mandatory and the server doesn't support it. */
1040 if (cli->sign_info.mandatory_signing && !(cli->sign_info.negotiated_smb_signing)) {
1041 DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
1045 } else if (cli->protocol >= PROTOCOL_LANMAN1) {
1046 cli->use_spnego = False;
1047 cli->sec_mode = SVAL(cli->inbuf,smb_vwv1);
1048 cli->max_xmit = SVAL(cli->inbuf,smb_vwv2);
1049 cli->sesskey = IVAL(cli->inbuf,smb_vwv6);
1050 cli->serverzone = SVALS(cli->inbuf,smb_vwv10);
1051 cli->serverzone *= 60;
1052 /* this time is converted to GMT by make_unix_date */
1053 cli->servertime = make_unix_date(cli->inbuf+smb_vwv8);
1054 cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0);
1055 cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0);
1056 cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
1058 /* the old core protocol */
1059 cli->use_spnego = False;
1061 cli->serverzone = TimeDiff(time(NULL));
1064 cli->max_xmit = MIN(cli->max_xmit, CLI_BUFFER_SIZE);
1066 /* a way to force ascii SMB */
1067 if (getenv("CLI_FORCE_ASCII"))
1068 cli->capabilities &= ~CAP_UNICODE;
1073 /****************************************************************************
1074 Send a session request. See rfc1002.txt 4.3 and 4.3.2.
1075 ****************************************************************************/
1077 BOOL cli_session_request(struct cli_state *cli,
1078 struct nmb_name *calling, struct nmb_name *called)
1082 extern pstring user_socket_options;
1084 memcpy(&(cli->calling), calling, sizeof(*calling));
1085 memcpy(&(cli->called ), called , sizeof(*called ));
1087 /* put in the destination name */
1088 p = cli->outbuf+len;
1089 name_mangle(cli->called .name, p, cli->called .name_type);
1093 p = cli->outbuf+len;
1094 name_mangle(cli->calling.name, p, cli->calling.name_type);
1097 /* 445 doesn't have session request */
1098 if (cli->port == 445)
1101 /* send a session request (RFC 1002) */
1102 /* setup the packet length
1103 * Remove four bytes from the length count, since the length
1104 * field in the NBT Session Service header counts the number
1105 * of bytes which follow. The cli_send_smb() function knows
1106 * about this and accounts for those four bytes.
1110 _smb_setlen(cli->outbuf,len);
1111 SCVAL(cli->outbuf,0,0x81);
1114 DEBUG(5,("Sent session request\n"));
1116 if (!cli_receive_smb(cli))
1119 if (CVAL(cli->inbuf,0) == 0x84) {
1120 /* C. Hoch 9/14/95 Start */
1121 /* For information, here is the response structure.
1122 * We do the byte-twiddling to for portability.
1123 struct RetargetResponse{
1125 unsigned char flags;
1131 int port = (CVAL(cli->inbuf,8)<<8)+CVAL(cli->inbuf,9);
1132 /* SESSION RETARGET */
1133 putip((char *)&cli->dest_ip,cli->inbuf+4);
1135 cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip, port, LONG_CONNECT_TIMEOUT);
1139 DEBUG(3,("Retargeted\n"));
1141 set_socket_options(cli->fd,user_socket_options);
1148 DEBUG(0,("Retarget recursion - failing\n"));
1152 ret = cli_session_request(cli, calling, called);
1156 } /* C. Hoch 9/14/95 End */
1158 if (CVAL(cli->inbuf,0) != 0x82) {
1159 /* This is the wrong place to put the error... JRA. */
1160 cli->rap_error = CVAL(cli->inbuf,4);
1166 /****************************************************************************
1167 Open the client sockets.
1168 ****************************************************************************/
1170 BOOL cli_connect(struct cli_state *cli, const char *host, struct in_addr *ip)
1172 extern pstring user_socket_options;
1173 int name_type = 0x20;
1176 /* reasonable default hostname */
1177 if (!host) host = "*SMBSERVER";
1179 fstrcpy(cli->desthost, host);
1181 /* allow hostnames of the form NAME#xx and do a netbios lookup */
1182 if ((p = strchr(cli->desthost, '#'))) {
1183 name_type = strtol(p+1, NULL, 16);
1187 if (!ip || is_zero_ip(*ip)) {
1188 if (!resolve_name(cli->desthost, &cli->dest_ip, name_type)) {
1191 if (ip) *ip = cli->dest_ip;
1196 if (getenv("LIBSMB_PROG")) {
1197 cli->fd = sock_exec(getenv("LIBSMB_PROG"));
1199 /* try 445 first, then 139 */
1200 int port = cli->port?cli->port:445;
1201 cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip,
1202 port, cli->timeout);
1203 if (cli->fd == -1 && cli->port == 0) {
1205 cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip,
1206 port, cli->timeout);
1211 if (cli->fd == -1) {
1212 DEBUG(1,("Error connecting to %s (%s)\n",
1213 ip?inet_ntoa(*ip):host,strerror(errno)));
1217 set_socket_options(cli->fd,user_socket_options);
1222 /****************************************************************************
1223 Initialise client credentials for authenticated pipe access.
1224 ****************************************************************************/
1226 static void init_creds(struct ntuser_creds *creds, const char* username,
1227 const char* domain, const char* password)
1229 ZERO_STRUCTP(creds);
1231 pwd_set_cleartext(&creds->pwd, password);
1233 fstrcpy(creds->user_name, username);
1234 fstrcpy(creds->domain, domain);
1237 creds->pwd.null_pwd = True;
1242 establishes a connection right up to doing tconX, password specified.
1243 @param output_cli A fully initialised cli structure, non-null only on success
1244 @param dest_host The netbios name of the remote host
1245 @param dest_ip (optional) The the destination IP, NULL for name based lookup
1246 @param port (optional) The destination port (0 for default)
1247 @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
1248 @param service_type The 'type' of serivice.
1249 @param user Username, unix string
1250 @param domain User's domain
1251 @param password User's password, unencrypted unix string.
1252 @param retry BOOL. Did this connection fail with a retryable error ?
1255 NTSTATUS cli_full_connection(struct cli_state **output_cli,
1256 const char *my_name,
1257 const char *dest_host,
1258 struct in_addr *dest_ip, int port,
1259 const char *service, const char *service_type,
1260 const char *user, const char *domain,
1261 const char *password, int flags,
1265 struct ntuser_creds creds;
1267 struct nmb_name calling;
1268 struct nmb_name called;
1269 struct cli_state *cli;
1276 my_name = global_myname();
1278 if (!(cli = cli_initialise(NULL)))
1279 return NT_STATUS_NO_MEMORY;
1281 make_nmb_name(&calling, my_name, 0x0);
1282 make_nmb_name(&called , dest_host, 0x20);
1284 if (cli_set_port(cli, port) != port) {
1286 return NT_STATUS_UNSUCCESSFUL;
1289 cli_set_timeout(cli, 10000); /* 10 seconds. */
1298 DEBUG(3,("Connecting to host=%s share=%s\n", dest_host, service));
1300 if (!cli_connect(cli, dest_host, &ip)) {
1301 DEBUG(1,("cli_full_connection: failed to connect to %s (%s)\n",
1302 nmb_namestr(&called), inet_ntoa(ip)));
1304 return NT_STATUS_UNSUCCESSFUL;
1310 if (!cli_session_request(cli, &calling, &called)) {
1312 DEBUG(1,("session request to %s failed (%s)\n",
1313 called.name, cli_errstr(cli)));
1314 if ((p=strchr(called.name, '.')) && !is_ipaddress(called.name)) {
1318 if (strcmp(called.name, "*SMBSERVER")) {
1319 make_nmb_name(&called , "*SMBSERVER", 0x20);
1322 return NT_STATUS_UNSUCCESSFUL;
1325 cli_setup_signing_state(cli, signing_state);
1327 if (flags & CLI_FULL_CONNECTION_DONT_SPNEGO)
1328 cli->use_spnego = False;
1329 else if (flags & CLI_FULL_CONNECTION_USE_KERBEROS)
1330 cli->use_kerberos = True;
1332 if (!cli_negprot(cli)) {
1333 DEBUG(1,("failed negprot\n"));
1334 nt_status = NT_STATUS_UNSUCCESSFUL;
1339 if (!cli_session_setup(cli, user, password, strlen(password)+1,
1340 password, strlen(password)+1,
1342 if ((flags & CLI_FULL_CONNECTION_ANNONYMOUS_FALLBACK)
1343 && cli_session_setup(cli, "", "", 0, "", 0, domain)) {
1345 nt_status = cli_nt_error(cli);
1346 DEBUG(1,("failed session setup with %s\n", nt_errstr(nt_status)));
1348 if (NT_STATUS_IS_OK(nt_status))
1349 nt_status = NT_STATUS_UNSUCCESSFUL;
1355 if (!cli_send_tconX(cli, service, service_type,
1356 password, strlen(password)+1)) {
1357 nt_status = cli_nt_error(cli);
1358 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status)));
1360 if (NT_STATUS_IS_OK(nt_status)) {
1361 nt_status = NT_STATUS_UNSUCCESSFUL;
1367 init_creds(&creds, user, domain, password);
1368 cli_init_creds(cli, &creds);
1371 return NT_STATUS_OK;
1374 /****************************************************************************
1375 Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
1376 ****************************************************************************/
1378 BOOL attempt_netbios_session_request(struct cli_state *cli, const char *srchost, const char *desthost,
1379 struct in_addr *pdest_ip)
1381 struct nmb_name calling, called;
1383 make_nmb_name(&calling, srchost, 0x0);
1386 * If the called name is an IP address
1387 * then use *SMBSERVER immediately.
1390 if(is_ipaddress(desthost))
1391 make_nmb_name(&called, "*SMBSERVER", 0x20);
1393 make_nmb_name(&called, desthost, 0x20);
1395 if (!cli_session_request(cli, &calling, &called)) {
1396 struct nmb_name smbservername;
1398 make_nmb_name(&smbservername , "*SMBSERVER", 0x20);
1401 * If the name wasn't *SMBSERVER then
1402 * try with *SMBSERVER if the first name fails.
1405 if (nmb_name_equal(&called, &smbservername)) {
1408 * The name used was *SMBSERVER, don't bother with another name.
1411 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
1412 with error %s.\n", desthost, cli_errstr(cli) ));
1417 * We need to close the connection here but can't call cli_shutdown as
1418 * will free an allocated cli struct. cli_close_connection was invented
1419 * for this purpose. JRA. Based on work by "Kim R. Pedersen" <krp@filanet.dk>.
1422 cli_close_connection(cli);
1424 if (!cli_initialise(cli) ||
1425 !cli_connect(cli, desthost, pdest_ip) ||
1426 !cli_session_request(cli, &calling, &smbservername)) {
1427 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
1428 name *SMBSERVER with error %s\n", desthost, cli_errstr(cli) ));
1440 /****************************************************************************
1441 Send an old style tcon.
1442 ****************************************************************************/
1443 NTSTATUS cli_raw_tcon(struct cli_state *cli,
1444 const char *service, const char *pass, const char *dev,
1445 uint16 *max_xmit, uint16 *tid)
1449 if (!lp_client_plaintext_auth() && (*pass)) {
1450 DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
1452 return NT_STATUS_ACCESS_DENIED;
1455 memset(cli->outbuf,'\0',smb_size);
1456 memset(cli->inbuf,'\0',smb_size);
1458 set_message(cli->outbuf, 0, 0, True);
1459 SCVAL(cli->outbuf,smb_com,SMBtcon);
1460 cli_setup_packet(cli);
1462 p = smb_buf(cli->outbuf);
1463 *p++ = 4; p += clistr_push(cli, p, service, -1, STR_TERMINATE | STR_NOALIGN);
1464 *p++ = 4; p += clistr_push(cli, p, pass, -1, STR_TERMINATE | STR_NOALIGN);
1465 *p++ = 4; p += clistr_push(cli, p, dev, -1, STR_TERMINATE | STR_NOALIGN);
1467 cli_setup_bcc(cli, p);
1470 if (!cli_receive_smb(cli)) {
1471 return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
1474 if (cli_is_error(cli)) {
1475 return cli_nt_error(cli);
1478 *max_xmit = SVAL(cli->inbuf, smb_vwv0);
1479 *tid = SVAL(cli->inbuf, smb_vwv1);
1481 return NT_STATUS_OK;
1484 /* Return a cli_state pointing at the IPC$ share for the given server */
1486 struct cli_state *get_ipc_connect(char *server, struct in_addr *server_ip,
1487 struct user_auth_info *user_info)
1489 struct cli_state *cli;
1495 nt_status = cli_full_connection(&cli, myname, server, server_ip, 0, "IPC$", "IPC",
1496 user_info->username, lp_workgroup(), user_info->password,
1497 CLI_FULL_CONNECTION_ANNONYMOUS_FALLBACK, Undefined, NULL);
1499 if (NT_STATUS_IS_OK(nt_status)) {
1501 } else if (is_ipaddress(server)) {
1502 /* windows 9* needs a correct NMB name for connections */
1503 fstring remote_name;
1505 if (name_status_find("*", 0, 0, *server_ip, remote_name)) {
1506 cli = get_ipc_connect(remote_name, server_ip, user_info);
1514 /* Return the IP address and workgroup of a master browser on the
1517 struct cli_state *get_ipc_connect_master_ip_bcast(pstring workgroup, struct user_auth_info *user_info)
1519 struct ip_service *ip_list;
1520 struct cli_state *cli;
1522 struct in_addr server_ip;
1524 /* Go looking for workgroups by broadcasting on the local network */
1526 if (!name_resolve_bcast(MSBROWSE, 1, &ip_list, &count)) {
1530 for (i = 0; i < count; i++) {
1531 static fstring name;
1533 if (!name_status_find("*", 0, 0x1d, ip_list[i].ip, name))
1536 if (!find_master_ip(name, &server_ip))
1539 pstrcpy(workgroup, name);
1541 DEBUG(4, ("found master browser %s, %s\n",
1542 name, inet_ntoa(ip_list[i].ip)));
1544 cli = get_ipc_connect(inet_ntoa(server_ip), &server_ip, user_info);