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 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/>.
27 {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
28 {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
29 {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
30 {PROTOCOL_LANMAN1,"LANMAN1.0"},
31 {PROTOCOL_LANMAN2,"LM1.2X002"},
32 {PROTOCOL_LANMAN2,"DOS LANMAN2.1"},
33 {PROTOCOL_LANMAN2,"LANMAN2.1"},
34 {PROTOCOL_LANMAN2,"Samba"},
35 {PROTOCOL_NT1,"NT LANMAN 1.0"},
36 {PROTOCOL_NT1,"NT LM 0.12"},
40 static const char *star_smbserver_name = "*SMBSERVER";
43 * Set the user session key for a connection
44 * @param cli The cli structure to add it too
45 * @param session_key The session key used. (A copy of this is taken for the cli struct)
49 static void cli_set_session_key (struct cli_state *cli, const DATA_BLOB session_key)
51 cli->user_session_key = data_blob(session_key.data, session_key.length);
54 /****************************************************************************
55 Do an old lanman2 style session setup.
56 ****************************************************************************/
58 static NTSTATUS cli_session_setup_lanman2(struct cli_state *cli,
60 const char *pass, size_t passlen,
61 const char *workgroup)
63 DATA_BLOB session_key = data_blob_null;
64 DATA_BLOB lm_response = data_blob_null;
68 if (passlen > sizeof(pword)-1) {
69 return NT_STATUS_INVALID_PARAMETER;
72 /* LANMAN servers predate NT status codes and Unicode and ignore those
73 smb flags so we must disable the corresponding default capabilities
74 that would otherwise cause the Unicode and NT Status flags to be
75 set (and even returned by the server) */
77 cli->capabilities &= ~(CAP_UNICODE | CAP_STATUS32);
79 /* if in share level security then don't send a password now */
80 if (!(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL))
83 if (passlen > 0 && (cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen != 24) {
84 /* Encrypted mode needed, and non encrypted password supplied. */
85 lm_response = data_blob(NULL, 24);
86 if (!SMBencrypt(pass, cli->secblob.data,(uchar *)lm_response.data)) {
87 DEBUG(1, ("Password is > 14 chars in length, and is therefore incompatible with Lanman authentication\n"));
88 return NT_STATUS_ACCESS_DENIED;
90 } else if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen == 24) {
91 /* Encrypted mode needed, and encrypted password supplied. */
92 lm_response = data_blob(pass, passlen);
93 } else if (passlen > 0) {
94 /* Plaintext mode needed, assume plaintext supplied. */
95 passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
96 lm_response = data_blob(pass, passlen);
99 /* send a session setup command */
100 memset(cli->outbuf,'\0',smb_size);
101 cli_set_message(cli->outbuf,10, 0, True);
102 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
103 cli_setup_packet(cli);
105 SCVAL(cli->outbuf,smb_vwv0,0xFF);
106 SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
107 SSVAL(cli->outbuf,smb_vwv3,2);
108 SSVAL(cli->outbuf,smb_vwv4,1);
109 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
110 SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
112 p = smb_buf(cli->outbuf);
113 memcpy(p,lm_response.data,lm_response.length);
114 p += lm_response.length;
115 p += clistr_push(cli, p, user, -1, STR_TERMINATE|STR_UPPER);
116 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
117 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
118 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
119 cli_setup_bcc(cli, p);
121 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
122 return cli_nt_error(cli);
125 show_msg(cli->inbuf);
127 if (cli_is_error(cli)) {
128 return cli_nt_error(cli);
131 /* use the returned vuid from now on */
132 cli->vuid = SVAL(cli->inbuf,smb_uid);
133 fstrcpy(cli->user_name, user);
135 if (session_key.data) {
136 /* Have plaintext orginal */
137 cli_set_session_key(cli, session_key);
143 /****************************************************************************
144 Work out suitable capabilities to offer the server.
145 ****************************************************************************/
147 static uint32 cli_session_setup_capabilities(struct cli_state *cli)
149 uint32 capabilities = CAP_NT_SMBS;
151 if (!cli->force_dos_errors)
152 capabilities |= CAP_STATUS32;
154 if (cli->use_level_II_oplocks)
155 capabilities |= CAP_LEVEL_II_OPLOCKS;
157 capabilities |= (cli->capabilities & (CAP_UNICODE|CAP_LARGE_FILES|CAP_LARGE_READX|CAP_LARGE_WRITEX|CAP_DFS));
161 /****************************************************************************
162 Do a NT1 guest session setup.
163 ****************************************************************************/
165 static NTSTATUS cli_session_setup_guest(struct cli_state *cli)
168 uint32 capabilities = cli_session_setup_capabilities(cli);
170 memset(cli->outbuf, '\0', smb_size);
171 cli_set_message(cli->outbuf,13,0,True);
172 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
173 cli_setup_packet(cli);
175 SCVAL(cli->outbuf,smb_vwv0,0xFF);
176 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
177 SSVAL(cli->outbuf,smb_vwv3,2);
178 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
179 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
180 SSVAL(cli->outbuf,smb_vwv7,0);
181 SSVAL(cli->outbuf,smb_vwv8,0);
182 SIVAL(cli->outbuf,smb_vwv11,capabilities);
183 p = smb_buf(cli->outbuf);
184 p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* username */
185 p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* workgroup */
186 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
187 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
188 cli_setup_bcc(cli, p);
190 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
191 return cli_nt_error(cli);
194 show_msg(cli->inbuf);
196 if (cli_is_error(cli)) {
197 return cli_nt_error(cli);
200 cli->vuid = SVAL(cli->inbuf,smb_uid);
202 p = smb_buf(cli->inbuf);
203 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
204 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
205 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
207 if (strstr(cli->server_type, "Samba")) {
208 cli->is_samba = True;
211 fstrcpy(cli->user_name, "");
216 /****************************************************************************
217 Do a NT1 plaintext session setup.
218 ****************************************************************************/
220 static NTSTATUS cli_session_setup_plaintext(struct cli_state *cli,
221 const char *user, const char *pass,
222 const char *workgroup)
224 uint32 capabilities = cli_session_setup_capabilities(cli);
228 fstr_sprintf( lanman, "Samba %s", SAMBA_VERSION_STRING);
230 memset(cli->outbuf, '\0', smb_size);
231 cli_set_message(cli->outbuf,13,0,True);
232 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
233 cli_setup_packet(cli);
235 SCVAL(cli->outbuf,smb_vwv0,0xFF);
236 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
237 SSVAL(cli->outbuf,smb_vwv3,2);
238 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
239 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
240 SSVAL(cli->outbuf,smb_vwv8,0);
241 SIVAL(cli->outbuf,smb_vwv11,capabilities);
242 p = smb_buf(cli->outbuf);
244 /* check wether to send the ASCII or UNICODE version of the password */
246 if ( (capabilities & CAP_UNICODE) == 0 ) {
247 p += clistr_push(cli, p, pass, -1, STR_TERMINATE); /* password */
248 SSVAL(cli->outbuf,smb_vwv7,PTR_DIFF(p, smb_buf(cli->outbuf)));
251 p += clistr_push(cli, p, pass, -1, STR_UNICODE|STR_TERMINATE); /* unicode password */
252 SSVAL(cli->outbuf,smb_vwv8,PTR_DIFF(p, smb_buf(cli->outbuf)));
255 p += clistr_push(cli, p, user, -1, STR_TERMINATE); /* username */
256 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE); /* workgroup */
257 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
258 p += clistr_push(cli, p, lanman, -1, STR_TERMINATE);
259 cli_setup_bcc(cli, p);
261 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
262 return cli_nt_error(cli);
265 show_msg(cli->inbuf);
267 if (cli_is_error(cli)) {
268 return cli_nt_error(cli);
271 cli->vuid = SVAL(cli->inbuf,smb_uid);
272 p = smb_buf(cli->inbuf);
273 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
274 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
275 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
276 fstrcpy(cli->user_name, user);
278 if (strstr(cli->server_type, "Samba")) {
279 cli->is_samba = True;
285 /****************************************************************************
286 do a NT1 NTLM/LM encrypted session setup - for when extended security
288 @param cli client state to create do session setup on
290 @param pass *either* cleartext password (passlen !=24) or LM response.
291 @param ntpass NT response, implies ntpasslen >=24, implies pass is not clear
292 @param workgroup The user's domain.
293 ****************************************************************************/
295 static NTSTATUS cli_session_setup_nt1(struct cli_state *cli, const char *user,
296 const char *pass, size_t passlen,
297 const char *ntpass, size_t ntpasslen,
298 const char *workgroup)
300 uint32 capabilities = cli_session_setup_capabilities(cli);
301 DATA_BLOB lm_response = data_blob_null;
302 DATA_BLOB nt_response = data_blob_null;
303 DATA_BLOB session_key = data_blob_null;
308 /* do nothing - guest login */
309 } else if (passlen != 24) {
310 if (lp_client_ntlmv2_auth()) {
311 DATA_BLOB server_chal;
312 DATA_BLOB names_blob;
313 server_chal = data_blob(cli->secblob.data, MIN(cli->secblob.length, 8));
315 /* note that the 'workgroup' here is a best guess - we don't know
316 the server's domain at this point. The 'server name' is also
319 names_blob = NTLMv2_generate_names_blob(cli->called.name, workgroup);
321 if (!SMBNTLMv2encrypt(user, workgroup, pass, &server_chal,
323 &lm_response, &nt_response, &session_key)) {
324 data_blob_free(&names_blob);
325 data_blob_free(&server_chal);
326 return NT_STATUS_ACCESS_DENIED;
328 data_blob_free(&names_blob);
329 data_blob_free(&server_chal);
333 E_md4hash(pass, nt_hash);
336 nt_response = data_blob_null;
338 nt_response = data_blob(NULL, 24);
339 SMBNTencrypt(pass,cli->secblob.data,nt_response.data);
341 /* non encrypted password supplied. Ignore ntpass. */
342 if (lp_client_lanman_auth()) {
343 lm_response = data_blob(NULL, 24);
344 if (!SMBencrypt(pass,cli->secblob.data, lm_response.data)) {
345 /* Oops, the LM response is invalid, just put
346 the NT response there instead */
347 data_blob_free(&lm_response);
348 lm_response = data_blob(nt_response.data, nt_response.length);
351 /* LM disabled, place NT# in LM field instead */
352 lm_response = data_blob(nt_response.data, nt_response.length);
355 session_key = data_blob(NULL, 16);
357 E_deshash(pass, session_key.data);
358 memset(&session_key.data[8], '\0', 8);
360 SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
364 cli_simple_set_signing(cli, session_key, lm_response);
366 cli_simple_set_signing(cli, session_key, nt_response);
369 /* pre-encrypted password supplied. Only used for
370 security=server, can't do
371 signing because we don't have original key */
373 lm_response = data_blob(pass, passlen);
374 nt_response = data_blob(ntpass, ntpasslen);
377 /* send a session setup command */
378 memset(cli->outbuf,'\0',smb_size);
380 cli_set_message(cli->outbuf,13,0,True);
381 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
382 cli_setup_packet(cli);
384 SCVAL(cli->outbuf,smb_vwv0,0xFF);
385 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
386 SSVAL(cli->outbuf,smb_vwv3,2);
387 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
388 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
389 SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
390 SSVAL(cli->outbuf,smb_vwv8,nt_response.length);
391 SIVAL(cli->outbuf,smb_vwv11,capabilities);
392 p = smb_buf(cli->outbuf);
393 if (lm_response.length) {
394 memcpy(p,lm_response.data, lm_response.length); p += lm_response.length;
396 if (nt_response.length) {
397 memcpy(p,nt_response.data, nt_response.length); p += nt_response.length;
399 p += clistr_push(cli, p, user, -1, STR_TERMINATE);
401 /* Upper case here might help some NTLMv2 implementations */
402 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
403 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
404 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
405 cli_setup_bcc(cli, p);
407 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
408 result = cli_nt_error(cli);
412 /* show_msg(cli->inbuf); */
414 if (cli_is_error(cli)) {
415 result = cli_nt_error(cli);
419 /* use the returned vuid from now on */
420 cli->vuid = SVAL(cli->inbuf,smb_uid);
422 p = smb_buf(cli->inbuf);
423 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
424 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
425 p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
427 if (strstr(cli->server_type, "Samba")) {
428 cli->is_samba = True;
431 fstrcpy(cli->user_name, user);
433 if (session_key.data) {
434 /* Have plaintext orginal */
435 cli_set_session_key(cli, session_key);
438 result = NT_STATUS_OK;
440 data_blob_free(&lm_response);
441 data_blob_free(&nt_response);
442 data_blob_free(&session_key);
446 /****************************************************************************
447 Send a extended security session setup blob
448 ****************************************************************************/
450 static bool cli_session_setup_blob_send(struct cli_state *cli, DATA_BLOB blob)
452 uint32 capabilities = cli_session_setup_capabilities(cli);
455 capabilities |= CAP_EXTENDED_SECURITY;
457 /* send a session setup command */
458 memset(cli->outbuf,'\0',smb_size);
460 cli_set_message(cli->outbuf,12,0,True);
461 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
463 cli_setup_packet(cli);
465 SCVAL(cli->outbuf,smb_vwv0,0xFF);
466 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
467 SSVAL(cli->outbuf,smb_vwv3,2);
468 SSVAL(cli->outbuf,smb_vwv4,1);
469 SIVAL(cli->outbuf,smb_vwv5,0);
470 SSVAL(cli->outbuf,smb_vwv7,blob.length);
471 SIVAL(cli->outbuf,smb_vwv10,capabilities);
472 p = smb_buf(cli->outbuf);
473 memcpy(p, blob.data, blob.length);
475 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
476 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
477 cli_setup_bcc(cli, p);
478 return cli_send_smb(cli);
481 /****************************************************************************
482 Send a extended security session setup blob, returning a reply blob.
483 ****************************************************************************/
485 static DATA_BLOB cli_session_setup_blob_receive(struct cli_state *cli)
487 DATA_BLOB blob2 = data_blob_null;
491 if (!cli_receive_smb(cli))
494 show_msg(cli->inbuf);
496 if (cli_is_error(cli) && !NT_STATUS_EQUAL(cli_nt_error(cli),
497 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
501 /* use the returned vuid from now on */
502 cli->vuid = SVAL(cli->inbuf,smb_uid);
504 p = smb_buf(cli->inbuf);
506 blob2 = data_blob(p, SVAL(cli->inbuf, smb_vwv3));
509 p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
511 /* w2k with kerberos doesn't properly null terminate this field */
512 len = smb_buflen(cli->inbuf) - PTR_DIFF(p, smb_buf(cli->inbuf));
513 p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), len, 0);
519 /****************************************************************************
520 Send a extended security session setup blob, returning a reply blob.
521 ****************************************************************************/
523 /* The following is calculated from :
525 * (smb_wcnt * 2) = 24 (smb_wcnt == 12 in cli_session_setup_blob_send() )
526 * (strlen("Unix") + 1 + strlen("Samba") + 1) * 2 = 22 (unicode strings at
530 #define BASE_SESSSETUP_BLOB_PACKET_SIZE (35 + 24 + 22)
532 static bool cli_session_setup_blob(struct cli_state *cli, DATA_BLOB blob, DATA_BLOB session_key_krb5)
534 int32 remaining = blob.length;
536 DATA_BLOB send_blob = data_blob_null;
537 int32 max_blob_size = 0;
538 DATA_BLOB receive_blob = data_blob_null;
540 if (cli->max_xmit < BASE_SESSSETUP_BLOB_PACKET_SIZE + 1) {
541 DEBUG(0,("cli_session_setup_blob: cli->max_xmit too small "
542 "(was %u, need minimum %u)\n",
543 (unsigned int)cli->max_xmit,
544 BASE_SESSSETUP_BLOB_PACKET_SIZE));
545 cli_set_nt_error(cli, NT_STATUS_INVALID_PARAMETER);
549 max_blob_size = cli->max_xmit - BASE_SESSSETUP_BLOB_PACKET_SIZE;
551 while ( remaining > 0) {
552 if (remaining >= max_blob_size) {
553 send_blob.length = max_blob_size;
554 remaining -= max_blob_size;
556 DATA_BLOB null_blob = data_blob_null;
558 send_blob.length = remaining;
561 /* This is the last packet in the sequence - turn signing on. */
562 cli_simple_set_signing(cli, session_key_krb5, null_blob);
565 send_blob.data = &blob.data[cur];
566 cur += send_blob.length;
568 DEBUG(10, ("cli_session_setup_blob: Remaining (%u) sending (%u) current (%u)\n",
569 (unsigned int)remaining,
570 (unsigned int)send_blob.length,
571 (unsigned int)cur ));
573 if (!cli_session_setup_blob_send(cli, send_blob)) {
574 DEBUG(0, ("cli_session_setup_blob: send failed\n"));
578 receive_blob = cli_session_setup_blob_receive(cli);
579 data_blob_free(&receive_blob);
581 if (cli_is_error(cli) &&
582 !NT_STATUS_EQUAL( cli_get_nt_error(cli),
583 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
584 DEBUG(0, ("cli_session_setup_blob: recieve failed (%s)\n",
585 nt_errstr(cli_get_nt_error(cli)) ));
594 /****************************************************************************
595 Use in-memory credentials cache
596 ****************************************************************************/
598 static void use_in_memory_ccache(void) {
599 setenv(KRB5_ENV_CCNAME, "MEMORY:cliconnect", 1);
602 /****************************************************************************
603 Do a spnego/kerberos encrypted session setup.
604 ****************************************************************************/
606 static ADS_STATUS cli_session_setup_kerberos(struct cli_state *cli, const char *principal, const char *workgroup)
608 DATA_BLOB negTokenTarg;
609 DATA_BLOB session_key_krb5;
612 DEBUG(2,("Doing kerberos session setup\n"));
614 /* generate the encapsulated kerberos5 ticket */
615 rc = spnego_gen_negTokenTarg(principal, 0, &negTokenTarg, &session_key_krb5, 0, NULL);
618 DEBUG(1, ("cli_session_setup_kerberos: spnego_gen_negTokenTarg failed: %s\n",
620 return ADS_ERROR_KRB5(rc);
624 file_save("negTokenTarg.dat", negTokenTarg.data, negTokenTarg.length);
627 if (!cli_session_setup_blob(cli, negTokenTarg, session_key_krb5)) {
628 data_blob_free(&negTokenTarg);
629 data_blob_free(&session_key_krb5);
630 ADS_ERROR_NT(cli_nt_error(cli));
633 cli_set_session_key(cli, session_key_krb5);
635 data_blob_free(&negTokenTarg);
636 data_blob_free(&session_key_krb5);
638 if (cli_is_error(cli)) {
639 if (NT_STATUS_IS_OK(cli_nt_error(cli))) {
640 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
643 return ADS_ERROR_NT(cli_nt_error(cli));
645 #endif /* HAVE_KRB5 */
648 /****************************************************************************
649 Do a spnego/NTLMSSP encrypted session setup.
650 ****************************************************************************/
652 static NTSTATUS cli_session_setup_ntlmssp(struct cli_state *cli, const char *user,
653 const char *pass, const char *domain)
655 struct ntlmssp_state *ntlmssp_state;
659 DATA_BLOB blob = data_blob_null;
660 DATA_BLOB blob_in = data_blob_null;
661 DATA_BLOB blob_out = data_blob_null;
663 cli_temp_set_signing(cli);
665 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_client_start(&ntlmssp_state))) {
668 ntlmssp_want_feature(ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
670 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_username(ntlmssp_state, user))) {
673 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_domain(ntlmssp_state, domain))) {
676 if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_password(ntlmssp_state, pass))) {
681 nt_status = ntlmssp_update(ntlmssp_state,
683 data_blob_free(&blob_in);
684 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(nt_status)) {
686 /* and wrap it in a SPNEGO wrapper */
687 msg1 = gen_negTokenInit(OID_NTLMSSP, blob_out);
689 /* wrap it in SPNEGO */
690 msg1 = spnego_gen_auth(blob_out);
693 /* now send that blob on its way */
694 if (!cli_session_setup_blob_send(cli, msg1)) {
695 DEBUG(3, ("Failed to send NTLMSSP/SPNEGO blob to server!\n"));
696 nt_status = NT_STATUS_UNSUCCESSFUL;
698 blob = cli_session_setup_blob_receive(cli);
700 nt_status = cli_nt_error(cli);
701 if (cli_is_error(cli) && NT_STATUS_IS_OK(nt_status)) {
702 if (cli->smb_rw_error == SMB_READ_BAD_SIG) {
703 nt_status = NT_STATUS_ACCESS_DENIED;
705 nt_status = NT_STATUS_UNSUCCESSFUL;
709 data_blob_free(&msg1);
713 if (NT_STATUS_IS_OK(nt_status)) {
714 nt_status = NT_STATUS_UNSUCCESSFUL;
716 } else if ((turn == 1) &&
717 NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
718 DATA_BLOB tmp_blob = data_blob_null;
719 /* the server might give us back two challenges */
720 if (!spnego_parse_challenge(blob, &blob_in,
722 DEBUG(3,("Failed to parse challenges\n"));
723 nt_status = NT_STATUS_INVALID_PARAMETER;
725 data_blob_free(&tmp_blob);
727 if (!spnego_parse_auth_response(blob, nt_status, OID_NTLMSSP,
729 DEBUG(3,("Failed to parse auth response\n"));
730 if (NT_STATUS_IS_OK(nt_status)
731 || NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED))
732 nt_status = NT_STATUS_INVALID_PARAMETER;
735 data_blob_free(&blob);
736 data_blob_free(&blob_out);
738 } while (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED));
740 data_blob_free(&blob_in);
742 if (NT_STATUS_IS_OK(nt_status)) {
744 DATA_BLOB key = data_blob(ntlmssp_state->session_key.data,
745 ntlmssp_state->session_key.length);
746 DATA_BLOB null_blob = data_blob_null;
749 fstrcpy(cli->server_domain, ntlmssp_state->server_domain);
750 cli_set_session_key(cli, ntlmssp_state->session_key);
752 res = cli_simple_set_signing(cli, key, null_blob);
754 data_blob_free(&key);
758 /* 'resign' the last message, so we get the right sequence numbers
759 for checking the first reply from the server */
760 cli_calculate_sign_mac(cli);
762 if (!cli_check_sign_mac(cli)) {
763 nt_status = NT_STATUS_ACCESS_DENIED;
768 /* we have a reference conter on ntlmssp_state, if we are signing
769 then the state will be kept by the signing engine */
771 ntlmssp_end(&ntlmssp_state);
773 if (!NT_STATUS_IS_OK(nt_status)) {
779 /****************************************************************************
780 Do a spnego encrypted session setup.
781 ****************************************************************************/
783 ADS_STATUS cli_session_setup_spnego(struct cli_state *cli, const char *user,
784 const char *pass, const char *domain)
787 char *OIDs[ASN1_MAX_OIDS];
789 bool got_kerberos_mechanism = False;
792 DEBUG(3,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli->secblob.length));
794 /* the server might not even do spnego */
795 if (cli->secblob.length <= 16) {
796 DEBUG(3,("server didn't supply a full spnego negprot\n"));
801 file_save("negprot.dat", cli->secblob.data, cli->secblob.length);
804 /* there is 16 bytes of GUID before the real spnego packet starts */
805 blob = data_blob(cli->secblob.data+16, cli->secblob.length-16);
807 /* the server sent us the first part of the SPNEGO exchange in the negprot
809 if (!spnego_parse_negTokenInit(blob, OIDs, &principal)) {
810 data_blob_free(&blob);
811 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
813 data_blob_free(&blob);
815 /* make sure the server understands kerberos */
816 for (i=0;OIDs[i];i++) {
817 DEBUG(3,("got OID=%s\n", OIDs[i]));
818 if (strcmp(OIDs[i], OID_KERBEROS5_OLD) == 0 ||
819 strcmp(OIDs[i], OID_KERBEROS5) == 0) {
820 got_kerberos_mechanism = True;
825 DEBUG(3,("got principal=%s\n", principal ? principal : "<null>"));
827 if (got_kerberos_mechanism && (principal == NULL)) {
829 * It is WRONG to depend on the principal sent in the negprot
830 * reply, but right now we do it. So for safety (don't
831 * segfault later) disable Kerberos when no principal was
834 DEBUG(1, ("Kerberos mech was offered, but no principal was "
835 "sent, disabling Kerberos\n"));
836 cli->use_kerberos = False;
839 fstrcpy(cli->user_name, user);
842 /* If password is set we reauthenticate to kerberos server
843 * and do not store results */
845 if (got_kerberos_mechanism && cli->use_kerberos) {
851 use_in_memory_ccache();
852 ret = kerberos_kinit_password(user, pass, 0 /* no time correction for now */, NULL);
855 SAFE_FREE(principal);
856 DEBUG(0, ("Kinit failed: %s\n", error_message(ret)));
857 if (cli->fallback_after_kerberos)
859 return ADS_ERROR_KRB5(ret);
863 /* If we get a bad principal, try to guess it if
864 we have a valid host NetBIOS name.
866 if (strequal(principal, ADS_IGNORE_PRINCIPAL)) {
867 SAFE_FREE(principal);
870 if (principal == NULL &&
871 !is_ipaddress(cli->desthost) &&
872 !strequal(star_smbserver_name,
875 DEBUG(3,("cli_session_setup_spnego: got a "
876 "bad server principal, trying to guess ...\n"));
878 realm = kerberos_get_default_realm_from_ccache();
879 if (realm && *realm) {
880 if (asprintf(&principal, "%s$@%s",
881 cli->desthost, realm) < 0) {
883 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
885 DEBUG(3,("cli_session_setup_spnego: guessed "
886 "server principal=%s\n",
887 principal ? principal : "<null>"));
893 rc = cli_session_setup_kerberos(cli, principal, domain);
894 if (ADS_ERR_OK(rc) || !cli->fallback_after_kerberos) {
895 SAFE_FREE(principal);
902 SAFE_FREE(principal);
906 return ADS_ERROR_NT(cli_session_setup_ntlmssp(cli, user, pass, domain));
909 /****************************************************************************
910 Send a session setup. The username and workgroup is in UNIX character
911 format and must be converted to DOS codepage format before sending. If the
912 password is in plaintext, the same should be done.
913 ****************************************************************************/
915 NTSTATUS cli_session_setup(struct cli_state *cli,
917 const char *pass, int passlen,
918 const char *ntpass, int ntpasslen,
919 const char *workgroup)
925 fstrcpy(user2, user);
934 /* allow for workgroups as part of the username */
935 if ((p=strchr_m(user2,'\\')) || (p=strchr_m(user2,'/')) ||
936 (p=strchr_m(user2,*lp_winbind_separator()))) {
942 if (cli->protocol < PROTOCOL_LANMAN1) {
946 /* now work out what sort of session setup we are going to
947 do. I have split this into separate functions to make the
948 flow a bit easier to understand (tridge) */
950 /* if its an older server then we have to use the older request format */
952 if (cli->protocol < PROTOCOL_NT1) {
953 if (!lp_client_lanman_auth() && passlen != 24 && (*pass)) {
954 DEBUG(1, ("Server requested LM password but 'client lanman auth'"
956 return NT_STATUS_ACCESS_DENIED;
959 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0 &&
960 !lp_client_plaintext_auth() && (*pass)) {
961 DEBUG(1, ("Server requested plaintext password but "
962 "'client plaintext auth' is disabled\n"));
963 return NT_STATUS_ACCESS_DENIED;
966 return cli_session_setup_lanman2(cli, user, pass, passlen,
970 /* if no user is supplied then we have to do an anonymous connection.
971 passwords are ignored */
974 return cli_session_setup_guest(cli);
976 /* if the server is share level then send a plaintext null
977 password at this point. The password is sent in the tree
980 if ((cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) == 0)
981 return cli_session_setup_plaintext(cli, user, "", workgroup);
983 /* if the server doesn't support encryption then we have to use
984 plaintext. The second password is ignored */
986 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
987 if (!lp_client_plaintext_auth() && (*pass)) {
988 DEBUG(1, ("Server requested plaintext password but "
989 "'client plaintext auth' is disabled\n"));
990 return NT_STATUS_ACCESS_DENIED;
992 return cli_session_setup_plaintext(cli, user, pass, workgroup);
995 /* if the server supports extended security then use SPNEGO */
997 if (cli->capabilities & CAP_EXTENDED_SECURITY) {
998 ADS_STATUS status = cli_session_setup_spnego(cli, user, pass, workgroup);
999 if (!ADS_ERR_OK(status)) {
1000 DEBUG(3, ("SPNEGO login failed: %s\n", ads_errstr(status)));
1001 return ads_ntstatus(status);
1006 /* otherwise do a NT1 style session setup */
1007 status = cli_session_setup_nt1(cli, user, pass, passlen,
1008 ntpass, ntpasslen, workgroup);
1009 if (!NT_STATUS_IS_OK(status)) {
1010 DEBUG(3,("cli_session_setup: NT1 session setup "
1011 "failed: %s\n", nt_errstr(status)));
1016 if (strstr(cli->server_type, "Samba")) {
1017 cli->is_samba = True;
1020 return NT_STATUS_OK;
1024 /****************************************************************************
1026 *****************************************************************************/
1028 bool cli_ulogoff(struct cli_state *cli)
1030 memset(cli->outbuf,'\0',smb_size);
1031 cli_set_message(cli->outbuf,2,0,True);
1032 SCVAL(cli->outbuf,smb_com,SMBulogoffX);
1033 cli_setup_packet(cli);
1034 SSVAL(cli->outbuf,smb_vwv0,0xFF);
1035 SSVAL(cli->outbuf,smb_vwv2,0); /* no additional info */
1038 if (!cli_receive_smb(cli))
1041 if (cli_is_error(cli)) {
1049 /****************************************************************************
1051 ****************************************************************************/
1053 bool cli_send_tconX(struct cli_state *cli,
1054 const char *share, const char *dev, const char *pass, int passlen)
1056 fstring fullshare, pword;
1058 memset(cli->outbuf,'\0',smb_size);
1059 memset(cli->inbuf,'\0',smb_size);
1061 fstrcpy(cli->share, share);
1063 /* in user level security don't send a password now */
1064 if (cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
1068 DEBUG(1, ("Server not using user level security and no password supplied.\n"));
1072 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) &&
1073 *pass && passlen != 24) {
1074 if (!lp_client_lanman_auth()) {
1075 DEBUG(1, ("Server requested LANMAN password (share-level security) but 'client use lanman auth'"
1081 * Non-encrypted passwords - convert to DOS codepage before encryption.
1084 SMBencrypt(pass,cli->secblob.data,(uchar *)pword);
1086 if((cli->sec_mode & (NEGOTIATE_SECURITY_USER_LEVEL|NEGOTIATE_SECURITY_CHALLENGE_RESPONSE)) == 0) {
1087 if (!lp_client_plaintext_auth() && (*pass)) {
1088 DEBUG(1, ("Server requested plaintext "
1089 "password but 'client plaintext "
1090 "auth' is disabled\n"));
1095 * Non-encrypted passwords - convert to DOS codepage before using.
1097 passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
1101 memcpy(pword, pass, passlen);
1106 slprintf(fullshare, sizeof(fullshare)-1,
1107 "\\\\%s\\%s", cli->desthost, share);
1109 cli_set_message(cli->outbuf,4, 0, True);
1110 SCVAL(cli->outbuf,smb_com,SMBtconX);
1111 cli_setup_packet(cli);
1113 SSVAL(cli->outbuf,smb_vwv0,0xFF);
1114 SSVAL(cli->outbuf,smb_vwv2,TCONX_FLAG_EXTENDED_RESPONSE);
1115 SSVAL(cli->outbuf,smb_vwv3,passlen);
1117 p = smb_buf(cli->outbuf);
1119 memcpy(p,pword,passlen);
1122 p += clistr_push(cli, p, fullshare, -1, STR_TERMINATE |STR_UPPER);
1123 p += clistr_push(cli, p, dev, -1, STR_TERMINATE |STR_UPPER | STR_ASCII);
1125 cli_setup_bcc(cli, p);
1128 if (!cli_receive_smb(cli))
1131 if (cli_is_error(cli))
1134 clistr_pull(cli, cli->dev, smb_buf(cli->inbuf), sizeof(fstring), -1, STR_TERMINATE|STR_ASCII);
1136 if (cli->protocol >= PROTOCOL_NT1 &&
1137 smb_buflen(cli->inbuf) == 3) {
1138 /* almost certainly win95 - enable bug fixes */
1142 /* Make sure that we have the optional support 16-bit field. WCT > 2 */
1143 /* Avoids issues when connecting to Win9x boxes sharing files */
1145 cli->dfsroot = False;
1146 if ( (CVAL(cli->inbuf, smb_wct))>2 && cli->protocol >= PROTOCOL_LANMAN2 )
1147 cli->dfsroot = (SVAL( cli->inbuf, smb_vwv2 ) & SMB_SHARE_IN_DFS) ? True : False;
1149 cli->cnum = SVAL(cli->inbuf,smb_tid);
1153 /****************************************************************************
1154 Send a tree disconnect.
1155 ****************************************************************************/
1157 bool cli_tdis(struct cli_state *cli)
1159 memset(cli->outbuf,'\0',smb_size);
1160 cli_set_message(cli->outbuf,0,0,True);
1161 SCVAL(cli->outbuf,smb_com,SMBtdis);
1162 SSVAL(cli->outbuf,smb_tid,cli->cnum);
1163 cli_setup_packet(cli);
1166 if (!cli_receive_smb(cli))
1169 if (cli_is_error(cli)) {
1177 /****************************************************************************
1178 Send a negprot command.
1179 ****************************************************************************/
1181 void cli_negprot_send(struct cli_state *cli)
1186 if (cli->protocol < PROTOCOL_NT1)
1187 cli->use_spnego = False;
1189 memset(cli->outbuf,'\0',smb_size);
1191 /* setup the protocol strings */
1192 cli_set_message(cli->outbuf,0,0,True);
1194 p = smb_buf(cli->outbuf);
1196 prots[numprots].name && prots[numprots].prot<=cli->protocol;
1199 p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
1202 SCVAL(cli->outbuf,smb_com,SMBnegprot);
1203 cli_setup_bcc(cli, p);
1204 cli_setup_packet(cli);
1206 SCVAL(smb_buf(cli->outbuf),0,2);
1211 /****************************************************************************
1212 Send a negprot command.
1213 ****************************************************************************/
1215 bool cli_negprot(struct cli_state *cli)
1221 if (cli->protocol < PROTOCOL_NT1)
1222 cli->use_spnego = False;
1224 memset(cli->outbuf,'\0',smb_size);
1226 /* setup the protocol strings */
1227 for (plength=0,numprots=0;
1228 prots[numprots].name && prots[numprots].prot<=cli->protocol;
1230 plength += strlen(prots[numprots].name)+2;
1232 cli_set_message(cli->outbuf,0,plength,True);
1234 p = smb_buf(cli->outbuf);
1236 prots[numprots].name && prots[numprots].prot<=cli->protocol;
1239 p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
1242 SCVAL(cli->outbuf,smb_com,SMBnegprot);
1243 cli_setup_packet(cli);
1245 SCVAL(smb_buf(cli->outbuf),0,2);
1248 if (!cli_receive_smb(cli))
1251 show_msg(cli->inbuf);
1253 if (cli_is_error(cli) ||
1254 ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
1258 cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot;
1260 if ((cli->protocol < PROTOCOL_NT1) && cli->sign_info.mandatory_signing) {
1261 DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
1265 if (cli->protocol >= PROTOCOL_NT1) {
1268 cli->sec_mode = CVAL(cli->inbuf,smb_vwv1);
1269 cli->max_mux = SVAL(cli->inbuf, smb_vwv1+1);
1270 cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1);
1271 cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1);
1272 cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1);
1273 cli->serverzone *= 60;
1274 /* this time arrives in real GMT */
1275 ts = interpret_long_date(cli->inbuf+smb_vwv11+1);
1276 cli->servertime = ts.tv_sec;
1277 cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
1278 cli->capabilities = IVAL(cli->inbuf,smb_vwv9+1);
1279 if (cli->capabilities & CAP_RAW_MODE) {
1280 cli->readbraw_supported = True;
1281 cli->writebraw_supported = True;
1283 /* work out if they sent us a workgroup */
1284 if (!(cli->capabilities & CAP_EXTENDED_SECURITY) &&
1285 smb_buflen(cli->inbuf) > 8) {
1286 clistr_pull(cli, cli->server_domain,
1287 smb_buf(cli->inbuf)+8, sizeof(cli->server_domain),
1288 smb_buflen(cli->inbuf)-8, STR_UNICODE|STR_NOALIGN);
1292 * As signing is slow we only turn it on if either the client or
1293 * the server require it. JRA.
1296 if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED) {
1297 /* Fail if server says signing is mandatory and we don't want to support it. */
1298 if (!cli->sign_info.allow_smb_signing) {
1299 DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
1302 cli->sign_info.negotiated_smb_signing = True;
1303 cli->sign_info.mandatory_signing = True;
1304 } else if (cli->sign_info.mandatory_signing && cli->sign_info.allow_smb_signing) {
1305 /* Fail if client says signing is mandatory and the server doesn't support it. */
1306 if (!(cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED)) {
1307 DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
1310 cli->sign_info.negotiated_smb_signing = True;
1311 cli->sign_info.mandatory_signing = True;
1312 } else if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) {
1313 cli->sign_info.negotiated_smb_signing = True;
1316 if (cli->capabilities & (CAP_LARGE_READX|CAP_LARGE_WRITEX)) {
1317 SAFE_FREE(cli->outbuf);
1318 SAFE_FREE(cli->inbuf);
1319 cli->outbuf = (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE+SAFETY_MARGIN);
1320 cli->inbuf = (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE+SAFETY_MARGIN);
1321 cli->bufsize = CLI_SAMBA_MAX_LARGE_READX_SIZE;
1324 } else if (cli->protocol >= PROTOCOL_LANMAN1) {
1325 cli->use_spnego = False;
1326 cli->sec_mode = SVAL(cli->inbuf,smb_vwv1);
1327 cli->max_xmit = SVAL(cli->inbuf,smb_vwv2);
1328 cli->max_mux = SVAL(cli->inbuf, smb_vwv3);
1329 cli->sesskey = IVAL(cli->inbuf,smb_vwv6);
1330 cli->serverzone = SVALS(cli->inbuf,smb_vwv10);
1331 cli->serverzone *= 60;
1332 /* this time is converted to GMT by make_unix_date */
1333 cli->servertime = cli_make_unix_date(cli,cli->inbuf+smb_vwv8);
1334 cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0);
1335 cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0);
1336 cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
1338 /* the old core protocol */
1339 cli->use_spnego = False;
1341 cli->serverzone = get_time_zone(time(NULL));
1344 cli->max_xmit = MIN(cli->max_xmit, CLI_BUFFER_SIZE);
1346 /* a way to force ascii SMB */
1347 if (getenv("CLI_FORCE_ASCII"))
1348 cli->capabilities &= ~CAP_UNICODE;
1353 /****************************************************************************
1354 Send a session request. See rfc1002.txt 4.3 and 4.3.2.
1355 ****************************************************************************/
1357 bool cli_session_request(struct cli_state *cli,
1358 struct nmb_name *calling, struct nmb_name *called)
1363 memcpy(&(cli->calling), calling, sizeof(*calling));
1364 memcpy(&(cli->called ), called , sizeof(*called ));
1366 /* put in the destination name */
1367 p = cli->outbuf+len;
1368 name_mangle(cli->called .name, p, cli->called .name_type);
1372 p = cli->outbuf+len;
1373 name_mangle(cli->calling.name, p, cli->calling.name_type);
1376 /* 445 doesn't have session request */
1377 if (cli->port == 445)
1380 /* send a session request (RFC 1002) */
1381 /* setup the packet length
1382 * Remove four bytes from the length count, since the length
1383 * field in the NBT Session Service header counts the number
1384 * of bytes which follow. The cli_send_smb() function knows
1385 * about this and accounts for those four bytes.
1389 _smb_setlen(cli->outbuf,len);
1390 SCVAL(cli->outbuf,0,0x81);
1393 DEBUG(5,("Sent session request\n"));
1395 if (!cli_receive_smb(cli))
1398 if (CVAL(cli->inbuf,0) == 0x84) {
1399 /* C. Hoch 9/14/95 Start */
1400 /* For information, here is the response structure.
1401 * We do the byte-twiddling to for portability.
1402 struct RetargetResponse{
1404 unsigned char flags;
1410 uint16_t port = (CVAL(cli->inbuf,8)<<8)+CVAL(cli->inbuf,9);
1411 struct in_addr dest_ip;
1413 /* SESSION RETARGET */
1414 putip((char *)&dest_ip,cli->inbuf+4);
1415 in_addr_to_sockaddr_storage(&cli->dest_ss, dest_ip);
1417 cli->fd = open_socket_out(SOCK_STREAM,
1420 LONG_CONNECT_TIMEOUT);
1424 DEBUG(3,("Retargeted\n"));
1426 set_socket_options(cli->fd, lp_socket_options());
1433 DEBUG(0,("Retarget recursion - failing\n"));
1437 ret = cli_session_request(cli, calling, called);
1441 } /* C. Hoch 9/14/95 End */
1443 if (CVAL(cli->inbuf,0) != 0x82) {
1444 /* This is the wrong place to put the error... JRA. */
1445 cli->rap_error = CVAL(cli->inbuf,4);
1451 /****************************************************************************
1452 Open the client sockets.
1453 ****************************************************************************/
1455 NTSTATUS cli_connect(struct cli_state *cli,
1457 struct sockaddr_storage *dest_ss)
1460 int name_type = 0x20;
1461 TALLOC_CTX *frame = talloc_stackframe();
1462 unsigned int num_addrs = 0;
1464 struct sockaddr_storage *ss_arr = NULL;
1467 /* reasonable default hostname */
1469 host = star_smbserver_name;
1472 fstrcpy(cli->desthost, host);
1474 /* allow hostnames of the form NAME#xx and do a netbios lookup */
1475 if ((p = strchr(cli->desthost, '#'))) {
1476 name_type = strtol(p+1, NULL, 16);
1480 if (!dest_ss || is_zero_addr(dest_ss)) {
1481 NTSTATUS status =resolve_name_list(frame,
1486 if (!NT_STATUS_IS_OK(status)) {
1488 return NT_STATUS_BAD_NETWORK_NAME;
1492 ss_arr = TALLOC_P(frame, struct sockaddr_storage);
1495 return NT_STATUS_NO_MEMORY;
1500 for (i = 0; i < num_addrs; i++) {
1501 cli->dest_ss = ss_arr[i];
1502 if (getenv("LIBSMB_PROG")) {
1503 cli->fd = sock_exec(getenv("LIBSMB_PROG"));
1505 /* try 445 first, then 139 */
1506 uint16_t port = cli->port?cli->port:445;
1507 cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ss,
1508 port, cli->timeout);
1509 if (cli->fd == -1 && cli->port == 0) {
1511 cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ss,
1512 port, cli->timeout);
1514 if (cli->fd != -1) {
1518 if (cli->fd == -1) {
1519 char addr[INET6_ADDRSTRLEN];
1520 print_sockaddr(addr, sizeof(addr), &ss_arr[i]);
1521 DEBUG(2,("Error connecting to %s (%s)\n",
1522 dest_ss?addr:host,strerror(errno)));
1524 /* Exit from loop on first connection. */
1529 if (cli->fd == -1) {
1531 return map_nt_error_from_unix(errno);
1535 *dest_ss = cli->dest_ss;
1538 set_socket_options(cli->fd, lp_socket_options());
1541 return NT_STATUS_OK;
1545 establishes a connection to after the negprot.
1546 @param output_cli A fully initialised cli structure, non-null only on success
1547 @param dest_host The netbios name of the remote host
1548 @param dest_ss (optional) The the destination IP, NULL for name based lookup
1549 @param port (optional) The destination port (0 for default)
1550 @param retry bool. Did this connection fail with a retryable error ?
1553 NTSTATUS cli_start_connection(struct cli_state **output_cli,
1554 const char *my_name,
1555 const char *dest_host,
1556 struct sockaddr_storage *dest_ss, int port,
1557 int signing_state, int flags,
1561 struct nmb_name calling;
1562 struct nmb_name called;
1563 struct cli_state *cli;
1564 struct sockaddr_storage ss;
1570 my_name = global_myname();
1572 if (!(cli = cli_initialise())) {
1573 return NT_STATUS_NO_MEMORY;
1576 make_nmb_name(&calling, my_name, 0x0);
1577 make_nmb_name(&called , dest_host, 0x20);
1579 if (cli_set_port(cli, port) != port) {
1581 return NT_STATUS_UNSUCCESSFUL;
1584 cli_set_timeout(cli, 10000); /* 10 seconds. */
1594 DEBUG(3,("Connecting to host=%s\n", dest_host));
1596 nt_status = cli_connect(cli, dest_host, &ss);
1597 if (!NT_STATUS_IS_OK(nt_status)) {
1598 char addr[INET6_ADDRSTRLEN];
1599 print_sockaddr(addr, sizeof(addr), &ss);
1600 DEBUG(1,("cli_start_connection: failed to connect to %s (%s). Error %s\n",
1601 nmb_namestr(&called), addr, nt_errstr(nt_status) ));
1609 if (!cli_session_request(cli, &calling, &called)) {
1611 DEBUG(1,("session request to %s failed (%s)\n",
1612 called.name, cli_errstr(cli)));
1613 if ((p=strchr(called.name, '.')) && !is_ipaddress(called.name)) {
1617 if (strcmp(called.name, star_smbserver_name)) {
1618 make_nmb_name(&called , star_smbserver_name, 0x20);
1621 return NT_STATUS_BAD_NETWORK_NAME;
1624 cli_setup_signing_state(cli, signing_state);
1626 if (flags & CLI_FULL_CONNECTION_DONT_SPNEGO)
1627 cli->use_spnego = False;
1628 else if (flags & CLI_FULL_CONNECTION_USE_KERBEROS)
1629 cli->use_kerberos = True;
1631 if (!cli_negprot(cli)) {
1632 DEBUG(1,("failed negprot\n"));
1633 nt_status = cli_nt_error(cli);
1634 if (NT_STATUS_IS_OK(nt_status)) {
1635 nt_status = NT_STATUS_UNSUCCESSFUL;
1642 return NT_STATUS_OK;
1647 establishes a connection right up to doing tconX, password specified.
1648 @param output_cli A fully initialised cli structure, non-null only on success
1649 @param dest_host The netbios name of the remote host
1650 @param dest_ip (optional) The the destination IP, NULL for name based lookup
1651 @param port (optional) The destination port (0 for default)
1652 @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
1653 @param service_type The 'type' of serivice.
1654 @param user Username, unix string
1655 @param domain User's domain
1656 @param password User's password, unencrypted unix string.
1657 @param retry bool. Did this connection fail with a retryable error ?
1660 NTSTATUS cli_full_connection(struct cli_state **output_cli,
1661 const char *my_name,
1662 const char *dest_host,
1663 struct sockaddr_storage *dest_ss, int port,
1664 const char *service, const char *service_type,
1665 const char *user, const char *domain,
1666 const char *password, int flags,
1671 struct cli_state *cli = NULL;
1672 int pw_len = password ? strlen(password)+1 : 0;
1676 if (password == NULL) {
1680 nt_status = cli_start_connection(&cli, my_name, dest_host,
1681 dest_ss, port, signing_state,
1684 if (!NT_STATUS_IS_OK(nt_status)) {
1688 nt_status = cli_session_setup(cli, user, password, pw_len, password,
1690 if (!NT_STATUS_IS_OK(nt_status)) {
1692 if (!(flags & CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK)) {
1693 DEBUG(1,("failed session setup with %s\n",
1694 nt_errstr(nt_status)));
1699 nt_status = cli_session_setup(cli, "", "", 0, "", 0, domain);
1700 if (!NT_STATUS_IS_OK(nt_status)) {
1701 DEBUG(1,("anonymous failed session setup with %s\n",
1702 nt_errstr(nt_status)));
1709 if (!cli_send_tconX(cli, service, service_type, password, pw_len)) {
1710 nt_status = cli_nt_error(cli);
1711 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status)));
1713 if (NT_STATUS_IS_OK(nt_status)) {
1714 nt_status = NT_STATUS_UNSUCCESSFUL;
1720 cli_init_creds(cli, user, domain, password);
1723 return NT_STATUS_OK;
1726 /****************************************************************************
1727 Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
1728 ****************************************************************************/
1730 bool attempt_netbios_session_request(struct cli_state **ppcli, const char *srchost, const char *desthost,
1731 struct sockaddr_storage *pdest_ss)
1733 struct nmb_name calling, called;
1735 make_nmb_name(&calling, srchost, 0x0);
1738 * If the called name is an IP address
1739 * then use *SMBSERVER immediately.
1742 if(is_ipaddress(desthost)) {
1743 make_nmb_name(&called, star_smbserver_name, 0x20);
1745 make_nmb_name(&called, desthost, 0x20);
1748 if (!cli_session_request(*ppcli, &calling, &called)) {
1750 struct nmb_name smbservername;
1752 make_nmb_name(&smbservername, star_smbserver_name, 0x20);
1755 * If the name wasn't *SMBSERVER then
1756 * try with *SMBSERVER if the first name fails.
1759 if (nmb_name_equal(&called, &smbservername)) {
1762 * The name used was *SMBSERVER, don't bother with another name.
1765 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
1766 with error %s.\n", desthost, cli_errstr(*ppcli) ));
1771 cli_shutdown(*ppcli);
1773 *ppcli = cli_initialise();
1775 /* Out of memory... */
1779 status = cli_connect(*ppcli, desthost, pdest_ss);
1780 if (!NT_STATUS_IS_OK(status) ||
1781 !cli_session_request(*ppcli, &calling, &smbservername)) {
1782 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
1783 name *SMBSERVER with error %s\n", desthost, cli_errstr(*ppcli) ));
1791 /****************************************************************************
1792 Send an old style tcon.
1793 ****************************************************************************/
1794 NTSTATUS cli_raw_tcon(struct cli_state *cli,
1795 const char *service, const char *pass, const char *dev,
1796 uint16 *max_xmit, uint16 *tid)
1800 if (!lp_client_plaintext_auth() && (*pass)) {
1801 DEBUG(1, ("Server requested plaintext password but 'client "
1802 "plaintext auth' is disabled\n"));
1803 return NT_STATUS_ACCESS_DENIED;
1806 memset(cli->outbuf,'\0',smb_size);
1807 memset(cli->inbuf,'\0',smb_size);
1809 cli_set_message(cli->outbuf, 0, 0, True);
1810 SCVAL(cli->outbuf,smb_com,SMBtcon);
1811 cli_setup_packet(cli);
1813 p = smb_buf(cli->outbuf);
1814 *p++ = 4; p += clistr_push(cli, p, service, -1, STR_TERMINATE | STR_NOALIGN);
1815 *p++ = 4; p += clistr_push(cli, p, pass, -1, STR_TERMINATE | STR_NOALIGN);
1816 *p++ = 4; p += clistr_push(cli, p, dev, -1, STR_TERMINATE | STR_NOALIGN);
1818 cli_setup_bcc(cli, p);
1821 if (!cli_receive_smb(cli)) {
1822 return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
1825 if (cli_is_error(cli)) {
1826 return cli_nt_error(cli);
1829 *max_xmit = SVAL(cli->inbuf, smb_vwv0);
1830 *tid = SVAL(cli->inbuf, smb_vwv1);
1832 return NT_STATUS_OK;
1835 /* Return a cli_state pointing at the IPC$ share for the given server */
1837 struct cli_state *get_ipc_connect(char *server,
1838 struct sockaddr_storage *server_ss,
1839 const struct user_auth_info *user_info)
1841 struct cli_state *cli;
1844 nt_status = cli_full_connection(&cli, NULL, server, server_ss, 0, "IPC$", "IPC",
1845 user_info->username ? user_info->username : "",
1847 user_info->password ? user_info->password : "",
1848 CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK, Undefined, NULL);
1850 if (NT_STATUS_IS_OK(nt_status)) {
1852 } else if (is_ipaddress(server)) {
1853 /* windows 9* needs a correct NMB name for connections */
1854 fstring remote_name;
1856 if (name_status_find("*", 0, 0, server_ss, remote_name)) {
1857 cli = get_ipc_connect(remote_name, server_ss, user_info);
1866 * Given the IP address of a master browser on the network, return its
1867 * workgroup and connect to it.
1869 * This function is provided to allow additional processing beyond what
1870 * get_ipc_connect_master_ip_bcast() does, e.g. to retrieve the list of master
1871 * browsers and obtain each master browsers' list of domains (in case the
1872 * first master browser is recently on the network and has not yet
1873 * synchronized with other master browsers and therefore does not yet have the
1874 * entire network browse list)
1877 struct cli_state *get_ipc_connect_master_ip(TALLOC_CTX *ctx,
1878 struct ip_service *mb_ip,
1879 const struct user_auth_info *user_info,
1880 char **pp_workgroup_out)
1882 char addr[INET6_ADDRSTRLEN];
1884 struct cli_state *cli;
1885 struct sockaddr_storage server_ss;
1887 *pp_workgroup_out = NULL;
1889 print_sockaddr(addr, sizeof(addr), &mb_ip->ss);
1890 DEBUG(99, ("Looking up name of master browser %s\n",
1894 * Do a name status query to find out the name of the master browser.
1895 * We use <01><02>__MSBROWSE__<02>#01 if *#00 fails because a domain
1896 * master browser will not respond to a wildcard query (or, at least,
1897 * an NT4 server acting as the domain master browser will not).
1899 * We might be able to use ONLY the query on MSBROWSE, but that's not
1900 * yet been tested with all Windows versions, so until it is, leave
1901 * the original wildcard query as the first choice and fall back to
1902 * MSBROWSE if the wildcard query fails.
1904 if (!name_status_find("*", 0, 0x1d, &mb_ip->ss, name) &&
1905 !name_status_find(MSBROWSE, 1, 0x1d, &mb_ip->ss, name)) {
1907 DEBUG(99, ("Could not retrieve name status for %s\n",
1912 if (!find_master_ip(name, &server_ss)) {
1913 DEBUG(99, ("Could not find master ip for %s\n", name));
1917 *pp_workgroup_out = talloc_strdup(ctx, name);
1919 DEBUG(4, ("found master browser %s, %s\n", name, addr));
1921 print_sockaddr(addr, sizeof(addr), &server_ss);
1922 cli = get_ipc_connect(addr, &server_ss, user_info);
1928 * Return the IP address and workgroup of a master browser on the network, and
1932 struct cli_state *get_ipc_connect_master_ip_bcast(TALLOC_CTX *ctx,
1933 const struct user_auth_info *user_info,
1934 char **pp_workgroup_out)
1936 struct ip_service *ip_list;
1937 struct cli_state *cli;
1940 *pp_workgroup_out = NULL;
1942 DEBUG(99, ("Do broadcast lookup for workgroups on local network\n"));
1944 /* Go looking for workgroups by broadcasting on the local network */
1946 if (!NT_STATUS_IS_OK(name_resolve_bcast(MSBROWSE, 1, &ip_list,
1948 DEBUG(99, ("No master browsers responded\n"));
1952 for (i = 0; i < count; i++) {
1953 char addr[INET6_ADDRSTRLEN];
1954 print_sockaddr(addr, sizeof(addr), &ip_list[i].ss);
1955 DEBUG(99, ("Found master browser %s\n", addr));
1957 cli = get_ipc_connect_master_ip(ctx, &ip_list[i],
1958 user_info, pp_workgroup_out);