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/>.
22 #include "../libcli/auth/libcli_auth.h"
23 #include "../libcli/auth/spnego.h"
25 #include "../libcli/auth/ntlmssp.h"
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, "LANMAN2.1"},
38 {PROTOCOL_LANMAN2, "Samba"},
39 {PROTOCOL_NT1, "NT LANMAN 1.0"},
40 {PROTOCOL_NT1, "NT LM 0.12"},
43 #define STAR_SMBSERVER "*SMBSERVER"
46 * Set the user session key for a connection
47 * @param cli The cli structure to add it too
48 * @param session_key The session key used. (A copy of this is taken for the cli struct)
52 static void cli_set_session_key (struct cli_state *cli, const DATA_BLOB session_key)
54 cli->user_session_key = data_blob(session_key.data, session_key.length);
57 /****************************************************************************
58 Do an old lanman2 style session setup.
59 ****************************************************************************/
61 static NTSTATUS cli_session_setup_lanman2(struct cli_state *cli,
63 const char *pass, size_t passlen,
64 const char *workgroup)
66 DATA_BLOB session_key = data_blob_null;
67 DATA_BLOB lm_response = data_blob_null;
72 if (passlen > sizeof(pword)-1) {
73 return NT_STATUS_INVALID_PARAMETER;
76 /* LANMAN servers predate NT status codes and Unicode and ignore those
77 smb flags so we must disable the corresponding default capabilities
78 that would otherwise cause the Unicode and NT Status flags to be
79 set (and even returned by the server) */
81 cli->capabilities &= ~(CAP_UNICODE | CAP_STATUS32);
83 /* if in share level security then don't send a password now */
84 if (!(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL))
87 if (passlen > 0 && (cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen != 24) {
88 /* Encrypted mode needed, and non encrypted password supplied. */
89 lm_response = data_blob(NULL, 24);
90 if (!SMBencrypt(pass, cli->secblob.data,(uchar *)lm_response.data)) {
91 DEBUG(1, ("Password is > 14 chars in length, and is therefore incompatible with Lanman authentication\n"));
92 return NT_STATUS_ACCESS_DENIED;
94 } else if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen == 24) {
95 /* Encrypted mode needed, and encrypted password supplied. */
96 lm_response = data_blob(pass, passlen);
97 } else if (passlen > 0) {
98 /* Plaintext mode needed, assume plaintext supplied. */
99 passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
100 lm_response = data_blob(pass, passlen);
103 /* send a session setup command */
104 memset(cli->outbuf,'\0',smb_size);
105 cli_set_message(cli->outbuf,10, 0, True);
106 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
107 cli_setup_packet(cli);
109 SCVAL(cli->outbuf,smb_vwv0,0xFF);
110 SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
111 SSVAL(cli->outbuf,smb_vwv3,2);
112 SSVAL(cli->outbuf,smb_vwv4,1);
113 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
114 SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
116 p = smb_buf(cli->outbuf);
117 memcpy(p,lm_response.data,lm_response.length);
118 p += lm_response.length;
119 p += clistr_push(cli, p, user, -1, STR_TERMINATE|STR_UPPER);
120 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
121 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
122 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
123 cli_setup_bcc(cli, p);
125 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
126 return cli_nt_error(cli);
129 show_msg(cli->inbuf);
131 if (cli_is_error(cli)) {
132 return cli_nt_error(cli);
135 /* use the returned vuid from now on */
136 cli->vuid = SVAL(cli->inbuf,smb_uid);
137 status = cli_set_username(cli, user);
138 if (!NT_STATUS_IS_OK(status)) {
142 if (session_key.data) {
143 /* Have plaintext orginal */
144 cli_set_session_key(cli, session_key);
150 /****************************************************************************
151 Work out suitable capabilities to offer the server.
152 ****************************************************************************/
154 static uint32 cli_session_setup_capabilities(struct cli_state *cli)
156 uint32 capabilities = CAP_NT_SMBS;
158 if (!cli->force_dos_errors)
159 capabilities |= CAP_STATUS32;
161 if (cli->use_level_II_oplocks)
162 capabilities |= CAP_LEVEL_II_OPLOCKS;
164 capabilities |= (cli->capabilities & (CAP_UNICODE|CAP_LARGE_FILES|CAP_LARGE_READX|CAP_LARGE_WRITEX|CAP_DFS));
168 /****************************************************************************
169 Do a NT1 guest session setup.
170 ****************************************************************************/
172 struct cli_session_setup_guest_state {
173 struct cli_state *cli;
178 static void cli_session_setup_guest_done(struct tevent_req *subreq);
180 struct tevent_req *cli_session_setup_guest_create(TALLOC_CTX *mem_ctx,
181 struct event_context *ev,
182 struct cli_state *cli,
183 struct tevent_req **psmbreq)
185 struct tevent_req *req, *subreq;
186 struct cli_session_setup_guest_state *state;
190 req = tevent_req_create(mem_ctx, &state,
191 struct cli_session_setup_guest_state);
198 SCVAL(vwv+0, 0, 0xFF);
201 SSVAL(vwv+2, 0, CLI_BUFFER_SIZE);
203 SSVAL(vwv+4, 0, cli->pid);
204 SIVAL(vwv+5, 0, cli->sesskey);
209 SIVAL(vwv+11, 0, cli_session_setup_capabilities(cli));
211 bytes = talloc_array(state, uint8_t, 0);
213 bytes = smb_bytes_push_str(bytes, cli_ucs2(cli), "", 1, /* username */
215 bytes = smb_bytes_push_str(bytes, cli_ucs2(cli), "", 1, /* workgroup */
217 bytes = smb_bytes_push_str(bytes, cli_ucs2(cli), "Unix", 5, NULL);
218 bytes = smb_bytes_push_str(bytes, cli_ucs2(cli), "Samba", 6, NULL);
225 state->bytes.iov_base = (void *)bytes;
226 state->bytes.iov_len = talloc_get_size(bytes);
228 subreq = cli_smb_req_create(state, ev, cli, SMBsesssetupX, 0, 13, vwv,
230 if (subreq == NULL) {
234 tevent_req_set_callback(subreq, cli_session_setup_guest_done, req);
239 struct tevent_req *cli_session_setup_guest_send(TALLOC_CTX *mem_ctx,
240 struct event_context *ev,
241 struct cli_state *cli)
243 struct tevent_req *req, *subreq;
246 req = cli_session_setup_guest_create(mem_ctx, ev, cli, &subreq);
251 status = cli_smb_req_send(subreq);
252 if (NT_STATUS_IS_OK(status)) {
253 tevent_req_nterror(req, status);
254 return tevent_req_post(req, ev);
259 static void cli_session_setup_guest_done(struct tevent_req *subreq)
261 struct tevent_req *req = tevent_req_callback_data(
262 subreq, struct tevent_req);
263 struct cli_session_setup_guest_state *state = tevent_req_data(
264 req, struct cli_session_setup_guest_state);
265 struct cli_state *cli = state->cli;
273 status = cli_smb_recv(subreq, state, &in, 0, NULL, NULL,
276 if (!NT_STATUS_IS_OK(status)) {
277 tevent_req_nterror(req, status);
284 cli->vuid = SVAL(inbuf, smb_uid);
286 p += clistr_pull(inbuf, cli->server_os, (char *)p, sizeof(fstring),
287 bytes+num_bytes-p, STR_TERMINATE);
288 p += clistr_pull(inbuf, cli->server_type, (char *)p, sizeof(fstring),
289 bytes+num_bytes-p, STR_TERMINATE);
290 p += clistr_pull(inbuf, cli->server_domain, (char *)p, sizeof(fstring),
291 bytes+num_bytes-p, STR_TERMINATE);
293 if (strstr(cli->server_type, "Samba")) {
294 cli->is_samba = True;
297 status = cli_set_username(cli, "");
298 if (!NT_STATUS_IS_OK(status)) {
299 tevent_req_nterror(req, status);
302 tevent_req_done(req);
305 NTSTATUS cli_session_setup_guest_recv(struct tevent_req *req)
307 return tevent_req_simple_recv_ntstatus(req);
310 static NTSTATUS cli_session_setup_guest(struct cli_state *cli)
312 TALLOC_CTX *frame = talloc_stackframe();
313 struct event_context *ev;
314 struct tevent_req *req;
315 NTSTATUS status = NT_STATUS_OK;
317 if (cli_has_async_calls(cli)) {
319 * Can't use sync call while an async call is in flight
321 status = NT_STATUS_INVALID_PARAMETER;
325 ev = event_context_init(frame);
327 status = NT_STATUS_NO_MEMORY;
331 req = cli_session_setup_guest_send(frame, ev, cli);
333 status = NT_STATUS_NO_MEMORY;
337 if (!tevent_req_poll(req, ev)) {
338 status = map_nt_error_from_unix(errno);
342 status = cli_session_setup_guest_recv(req);
345 if (!NT_STATUS_IS_OK(status)) {
346 cli_set_error(cli, status);
351 /****************************************************************************
352 Do a NT1 plaintext session setup.
353 ****************************************************************************/
355 static NTSTATUS cli_session_setup_plaintext(struct cli_state *cli,
356 const char *user, const char *pass,
357 const char *workgroup)
359 uint32 capabilities = cli_session_setup_capabilities(cli);
364 fstr_sprintf( lanman, "Samba %s", samba_version_string());
366 memset(cli->outbuf, '\0', smb_size);
367 cli_set_message(cli->outbuf,13,0,True);
368 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
369 cli_setup_packet(cli);
371 SCVAL(cli->outbuf,smb_vwv0,0xFF);
372 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
373 SSVAL(cli->outbuf,smb_vwv3,2);
374 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
375 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
376 SSVAL(cli->outbuf,smb_vwv8,0);
377 SIVAL(cli->outbuf,smb_vwv11,capabilities);
378 p = smb_buf(cli->outbuf);
380 /* check wether to send the ASCII or UNICODE version of the password */
382 if ( (capabilities & CAP_UNICODE) == 0 ) {
383 p += clistr_push(cli, p, pass, -1, STR_TERMINATE); /* password */
384 SSVAL(cli->outbuf,smb_vwv7,PTR_DIFF(p, smb_buf(cli->outbuf)));
387 /* For ucs2 passwords clistr_push calls ucs2_align, which causes
388 * the space taken by the unicode password to be one byte too
389 * long (as we're on an odd byte boundary here). Reduce the
390 * count by 1 to cope with this. Fixes smbclient against NetApp
391 * servers which can't cope. Fix from
392 * bryan.kolodziej@allenlund.com in bug #3840.
394 p += clistr_push(cli, p, pass, -1, STR_UNICODE|STR_TERMINATE); /* unicode password */
395 SSVAL(cli->outbuf,smb_vwv8,PTR_DIFF(p, smb_buf(cli->outbuf))-1);
398 p += clistr_push(cli, p, user, -1, STR_TERMINATE); /* username */
399 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE); /* workgroup */
400 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
401 p += clistr_push(cli, p, lanman, -1, STR_TERMINATE);
402 cli_setup_bcc(cli, p);
404 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
405 return cli_nt_error(cli);
408 show_msg(cli->inbuf);
410 if (cli_is_error(cli)) {
411 return cli_nt_error(cli);
414 cli->vuid = SVAL(cli->inbuf,smb_uid);
415 p = smb_buf(cli->inbuf);
416 p += clistr_pull(cli->inbuf, cli->server_os, p, sizeof(fstring),
418 p += clistr_pull(cli->inbuf, cli->server_type, p, sizeof(fstring),
420 p += clistr_pull(cli->inbuf, cli->server_domain, p, sizeof(fstring),
422 status = cli_set_username(cli, user);
423 if (!NT_STATUS_IS_OK(status)) {
426 if (strstr(cli->server_type, "Samba")) {
427 cli->is_samba = True;
433 /****************************************************************************
434 do a NT1 NTLM/LM encrypted session setup - for when extended security
436 @param cli client state to create do session setup on
438 @param pass *either* cleartext password (passlen !=24) or LM response.
439 @param ntpass NT response, implies ntpasslen >=24, implies pass is not clear
440 @param workgroup The user's domain.
441 ****************************************************************************/
443 static NTSTATUS cli_session_setup_nt1(struct cli_state *cli, const char *user,
444 const char *pass, size_t passlen,
445 const char *ntpass, size_t ntpasslen,
446 const char *workgroup)
448 uint32 capabilities = cli_session_setup_capabilities(cli);
449 DATA_BLOB lm_response = data_blob_null;
450 DATA_BLOB nt_response = data_blob_null;
451 DATA_BLOB session_key = data_blob_null;
457 /* do nothing - guest login */
458 } else if (passlen != 24) {
459 if (lp_client_ntlmv2_auth()) {
460 DATA_BLOB server_chal;
461 DATA_BLOB names_blob;
462 server_chal = data_blob(cli->secblob.data, MIN(cli->secblob.length, 8));
464 /* note that the 'workgroup' here is a best guess - we don't know
465 the server's domain at this point. The 'server name' is also
468 names_blob = NTLMv2_generate_names_blob(NULL, cli->called.name, workgroup);
470 if (!SMBNTLMv2encrypt(NULL, user, workgroup, pass, &server_chal,
472 &lm_response, &nt_response, NULL, &session_key)) {
473 data_blob_free(&names_blob);
474 data_blob_free(&server_chal);
475 return NT_STATUS_ACCESS_DENIED;
477 data_blob_free(&names_blob);
478 data_blob_free(&server_chal);
482 E_md4hash(pass, nt_hash);
485 nt_response = data_blob_null;
487 nt_response = data_blob(NULL, 24);
488 SMBNTencrypt(pass,cli->secblob.data,nt_response.data);
490 /* non encrypted password supplied. Ignore ntpass. */
491 if (lp_client_lanman_auth()) {
492 lm_response = data_blob(NULL, 24);
493 if (!SMBencrypt(pass,cli->secblob.data, lm_response.data)) {
494 /* Oops, the LM response is invalid, just put
495 the NT response there instead */
496 data_blob_free(&lm_response);
497 lm_response = data_blob(nt_response.data, nt_response.length);
500 /* LM disabled, place NT# in LM field instead */
501 lm_response = data_blob(nt_response.data, nt_response.length);
504 session_key = data_blob(NULL, 16);
506 E_deshash(pass, session_key.data);
507 memset(&session_key.data[8], '\0', 8);
509 SMBsesskeygen_ntv1(nt_hash, session_key.data);
512 cli_temp_set_signing(cli);
514 /* pre-encrypted password supplied. Only used for
515 security=server, can't do
516 signing because we don't have original key */
518 lm_response = data_blob(pass, passlen);
519 nt_response = data_blob(ntpass, ntpasslen);
522 /* send a session setup command */
523 memset(cli->outbuf,'\0',smb_size);
525 cli_set_message(cli->outbuf,13,0,True);
526 SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
527 cli_setup_packet(cli);
529 SCVAL(cli->outbuf,smb_vwv0,0xFF);
530 SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
531 SSVAL(cli->outbuf,smb_vwv3,2);
532 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
533 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
534 SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
535 SSVAL(cli->outbuf,smb_vwv8,nt_response.length);
536 SIVAL(cli->outbuf,smb_vwv11,capabilities);
537 p = smb_buf(cli->outbuf);
538 if (lm_response.length) {
539 memcpy(p,lm_response.data, lm_response.length); p += lm_response.length;
541 if (nt_response.length) {
542 memcpy(p,nt_response.data, nt_response.length); p += nt_response.length;
544 p += clistr_push(cli, p, user, -1, STR_TERMINATE);
546 /* Upper case here might help some NTLMv2 implementations */
547 p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
548 p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
549 p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
550 cli_setup_bcc(cli, p);
552 if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
553 result = cli_nt_error(cli);
557 /* show_msg(cli->inbuf); */
559 if (cli_is_error(cli)) {
560 result = cli_nt_error(cli);
565 ok = cli_simple_set_signing(cli, session_key, lm_response);
567 ok = cli_simple_set_signing(cli, session_key, nt_response);
570 if (!cli_check_sign_mac(cli, cli->inbuf, 1)) {
571 result = NT_STATUS_ACCESS_DENIED;
576 /* use the returned vuid from now on */
577 cli->vuid = SVAL(cli->inbuf,smb_uid);
579 p = smb_buf(cli->inbuf);
580 p += clistr_pull(cli->inbuf, cli->server_os, p, sizeof(fstring),
582 p += clistr_pull(cli->inbuf, cli->server_type, p, sizeof(fstring),
584 p += clistr_pull(cli->inbuf, cli->server_domain, p, sizeof(fstring),
587 if (strstr(cli->server_type, "Samba")) {
588 cli->is_samba = True;
591 result = cli_set_username(cli, user);
592 if (!NT_STATUS_IS_OK(result)) {
596 if (session_key.data) {
597 /* Have plaintext orginal */
598 cli_set_session_key(cli, session_key);
601 result = NT_STATUS_OK;
603 data_blob_free(&lm_response);
604 data_blob_free(&nt_response);
605 data_blob_free(&session_key);
609 /* The following is calculated from :
611 * (smb_wcnt * 2) = 24 (smb_wcnt == 12 in cli_session_setup_blob_send() )
612 * (strlen("Unix") + 1 + strlen("Samba") + 1) * 2 = 22 (unicode strings at
616 #define BASE_SESSSETUP_BLOB_PACKET_SIZE (35 + 24 + 22)
618 struct cli_sesssetup_blob_state {
619 struct tevent_context *ev;
620 struct cli_state *cli;
622 uint16_t max_blob_size;
631 static bool cli_sesssetup_blob_next(struct cli_sesssetup_blob_state *state,
632 struct tevent_req **psubreq);
633 static void cli_sesssetup_blob_done(struct tevent_req *subreq);
635 static struct tevent_req *cli_sesssetup_blob_send(TALLOC_CTX *mem_ctx,
636 struct tevent_context *ev,
637 struct cli_state *cli,
640 struct tevent_req *req, *subreq;
641 struct cli_sesssetup_blob_state *state;
643 req = tevent_req_create(mem_ctx, &state,
644 struct cli_sesssetup_blob_state);
652 if (cli->max_xmit < BASE_SESSSETUP_BLOB_PACKET_SIZE + 1) {
653 DEBUG(1, ("cli_session_setup_blob: cli->max_xmit too small "
654 "(was %u, need minimum %u)\n",
655 (unsigned int)cli->max_xmit,
656 BASE_SESSSETUP_BLOB_PACKET_SIZE));
657 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
658 return tevent_req_post(req, ev);
660 state->max_blob_size =
661 MIN(cli->max_xmit - BASE_SESSSETUP_BLOB_PACKET_SIZE, 0xFFFF);
663 if (!cli_sesssetup_blob_next(state, &subreq)) {
664 tevent_req_nomem(NULL, req);
665 return tevent_req_post(req, ev);
667 tevent_req_set_callback(subreq, cli_sesssetup_blob_done, req);
671 static bool cli_sesssetup_blob_next(struct cli_sesssetup_blob_state *state,
672 struct tevent_req **psubreq)
674 struct tevent_req *subreq;
677 SCVAL(state->vwv+0, 0, 0xFF);
678 SCVAL(state->vwv+0, 1, 0);
679 SSVAL(state->vwv+1, 0, 0);
680 SSVAL(state->vwv+2, 0, CLI_BUFFER_SIZE);
681 SSVAL(state->vwv+3, 0, 2);
682 SSVAL(state->vwv+4, 0, 1);
683 SIVAL(state->vwv+5, 0, 0);
685 thistime = MIN(state->blob.length, state->max_blob_size);
686 SSVAL(state->vwv+7, 0, thistime);
688 SSVAL(state->vwv+8, 0, 0);
689 SSVAL(state->vwv+9, 0, 0);
690 SIVAL(state->vwv+10, 0,
691 cli_session_setup_capabilities(state->cli)
692 | CAP_EXTENDED_SECURITY);
694 state->buf = (uint8_t *)talloc_memdup(state, state->blob.data,
696 if (state->buf == NULL) {
699 state->blob.data += thistime;
700 state->blob.length -= thistime;
702 state->buf = smb_bytes_push_str(state->buf, cli_ucs2(state->cli),
704 state->buf = smb_bytes_push_str(state->buf, cli_ucs2(state->cli),
706 if (state->buf == NULL) {
709 subreq = cli_smb_send(state, state->ev, state->cli, SMBsesssetupX, 0,
711 talloc_get_size(state->buf), state->buf);
712 if (subreq == NULL) {
719 static void cli_sesssetup_blob_done(struct tevent_req *subreq)
721 struct tevent_req *req = tevent_req_callback_data(
722 subreq, struct tevent_req);
723 struct cli_sesssetup_blob_state *state = tevent_req_data(
724 req, struct cli_sesssetup_blob_state);
725 struct cli_state *cli = state->cli;
732 uint16_t blob_length;
735 status = cli_smb_recv(subreq, state, &inbuf, 1, &wct, &vwv,
738 if (!NT_STATUS_IS_OK(status)
739 && !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
740 tevent_req_nterror(req, status);
744 state->status = status;
745 TALLOC_FREE(state->buf);
747 state->inbuf = (char *)inbuf;
748 cli->vuid = SVAL(state->inbuf, smb_uid);
750 blob_length = SVAL(vwv+3, 0);
751 if (blob_length > num_bytes) {
752 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
755 state->ret_blob = data_blob_const(bytes, blob_length);
757 p = bytes + blob_length;
759 p += clistr_pull(state->inbuf, cli->server_os,
760 (char *)p, sizeof(fstring),
761 bytes+num_bytes-p, STR_TERMINATE);
762 p += clistr_pull(state->inbuf, cli->server_type,
763 (char *)p, sizeof(fstring),
764 bytes+num_bytes-p, STR_TERMINATE);
765 p += clistr_pull(state->inbuf, cli->server_domain,
766 (char *)p, sizeof(fstring),
767 bytes+num_bytes-p, STR_TERMINATE);
769 if (strstr(cli->server_type, "Samba")) {
770 cli->is_samba = True;
773 if (state->blob.length != 0) {
777 if (!cli_sesssetup_blob_next(state, &subreq)) {
778 tevent_req_nomem(NULL, req);
781 tevent_req_set_callback(subreq, cli_sesssetup_blob_done, req);
784 tevent_req_done(req);
787 static NTSTATUS cli_sesssetup_blob_recv(struct tevent_req *req,
792 struct cli_sesssetup_blob_state *state = tevent_req_data(
793 req, struct cli_sesssetup_blob_state);
797 if (tevent_req_is_nterror(req, &status)) {
798 state->cli->vuid = 0;
802 inbuf = talloc_move(mem_ctx, &state->inbuf);
804 *pblob = state->ret_blob;
806 if (pinbuf != NULL) {
809 /* could be NT_STATUS_MORE_PROCESSING_REQUIRED */
810 return state->status;
815 /****************************************************************************
816 Use in-memory credentials cache
817 ****************************************************************************/
819 static void use_in_memory_ccache(void) {
820 setenv(KRB5_ENV_CCNAME, "MEMORY:cliconnect", 1);
823 /****************************************************************************
824 Do a spnego/kerberos encrypted session setup.
825 ****************************************************************************/
827 struct cli_session_setup_kerberos_state {
828 struct cli_state *cli;
829 DATA_BLOB negTokenTarg;
830 DATA_BLOB session_key_krb5;
831 ADS_STATUS ads_status;
834 static void cli_session_setup_kerberos_done(struct tevent_req *subreq);
836 static struct tevent_req *cli_session_setup_kerberos_send(
837 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
838 const char *principal, const char *workgroup)
840 struct tevent_req *req, *subreq;
841 struct cli_session_setup_kerberos_state *state;
844 DEBUG(2,("Doing kerberos session setup\n"));
846 req = tevent_req_create(mem_ctx, &state,
847 struct cli_session_setup_kerberos_state);
852 state->ads_status = ADS_SUCCESS;
854 cli_temp_set_signing(cli);
857 * Ok, this is cheating: spnego_gen_krb5_negTokenInit can block if
858 * we have to acquire a ticket. To be fixed later :-)
860 rc = spnego_gen_krb5_negTokenInit(principal, 0, &state->negTokenTarg,
861 &state->session_key_krb5, 0, NULL);
863 DEBUG(1, ("cli_session_setup_kerberos: "
864 "spnego_gen_krb5_negTokenInit failed: %s\n",
866 state->ads_status = ADS_ERROR_KRB5(rc);
867 tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
868 return tevent_req_post(req, ev);
872 file_save("negTokenTarg.dat", state->negTokenTarg.data,
873 state->negTokenTarg.length);
876 subreq = cli_sesssetup_blob_send(state, ev, cli, state->negTokenTarg);
877 if (tevent_req_nomem(subreq, req)) {
878 return tevent_req_post(req, ev);
880 tevent_req_set_callback(subreq, cli_session_setup_kerberos_done, req);
884 static void cli_session_setup_kerberos_done(struct tevent_req *subreq)
886 struct tevent_req *req = tevent_req_callback_data(
887 subreq, struct tevent_req);
888 struct cli_session_setup_kerberos_state *state = tevent_req_data(
889 req, struct cli_session_setup_kerberos_state);
893 status = cli_sesssetup_blob_recv(subreq, talloc_tos(), NULL, &inbuf);
894 if (!NT_STATUS_IS_OK(status)) {
896 tevent_req_nterror(req, status);
900 cli_set_session_key(state->cli, state->session_key_krb5);
902 if (cli_simple_set_signing(state->cli, state->session_key_krb5,
904 && !cli_check_sign_mac(state->cli, inbuf, 1)) {
906 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
910 tevent_req_done(req);
913 static ADS_STATUS cli_session_setup_kerberos_recv(struct tevent_req *req)
915 struct cli_session_setup_kerberos_state *state = tevent_req_data(
916 req, struct cli_session_setup_kerberos_state);
919 if (tevent_req_is_nterror(req, &status)) {
920 return ADS_ERROR_NT(status);
922 return state->ads_status;
925 static ADS_STATUS cli_session_setup_kerberos(struct cli_state *cli,
926 const char *principal,
927 const char *workgroup)
929 struct tevent_context *ev;
930 struct tevent_req *req;
931 ADS_STATUS status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
933 if (cli_has_async_calls(cli)) {
934 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
936 ev = tevent_context_init(talloc_tos());
940 req = cli_session_setup_kerberos_send(ev, ev, cli, principal,
945 if (!tevent_req_poll(req, ev)) {
946 status = ADS_ERROR_SYSTEM(errno);
949 status = cli_session_setup_kerberos_recv(req);
954 #endif /* HAVE_KRB5 */
956 /****************************************************************************
957 Do a spnego/NTLMSSP encrypted session setup.
958 ****************************************************************************/
960 struct cli_session_setup_ntlmssp_state {
961 struct tevent_context *ev;
962 struct cli_state *cli;
963 struct ntlmssp_state *ntlmssp_state;
968 static int cli_session_setup_ntlmssp_state_destructor(
969 struct cli_session_setup_ntlmssp_state *state)
971 if (state->ntlmssp_state != NULL) {
972 TALLOC_FREE(state->ntlmssp_state);
977 static void cli_session_setup_ntlmssp_done(struct tevent_req *req);
979 static struct tevent_req *cli_session_setup_ntlmssp_send(
980 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
981 const char *user, const char *pass, const char *domain)
983 struct tevent_req *req, *subreq;
984 struct cli_session_setup_ntlmssp_state *state;
987 const char *OIDs_ntlm[] = {OID_NTLMSSP, NULL};
989 req = tevent_req_create(mem_ctx, &state,
990 struct cli_session_setup_ntlmssp_state);
998 state->ntlmssp_state = NULL;
999 talloc_set_destructor(
1000 state, cli_session_setup_ntlmssp_state_destructor);
1002 cli_temp_set_signing(cli);
1004 status = ntlmssp_client_start(state,
1007 lp_client_ntlmv2_auth(),
1008 &state->ntlmssp_state);
1009 if (!NT_STATUS_IS_OK(status)) {
1012 ntlmssp_want_feature(state->ntlmssp_state,
1013 NTLMSSP_FEATURE_SESSION_KEY);
1014 if (cli->use_ccache) {
1015 ntlmssp_want_feature(state->ntlmssp_state,
1016 NTLMSSP_FEATURE_CCACHE);
1018 status = ntlmssp_set_username(state->ntlmssp_state, user);
1019 if (!NT_STATUS_IS_OK(status)) {
1022 status = ntlmssp_set_domain(state->ntlmssp_state, domain);
1023 if (!NT_STATUS_IS_OK(status)) {
1026 status = ntlmssp_set_password(state->ntlmssp_state, pass);
1027 if (!NT_STATUS_IS_OK(status)) {
1030 status = ntlmssp_update(state->ntlmssp_state, data_blob_null,
1032 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1036 state->blob_out = spnego_gen_negTokenInit(OIDs_ntlm, &blob_out, NULL);
1037 data_blob_free(&blob_out);
1039 subreq = cli_sesssetup_blob_send(state, ev, cli, state->blob_out);
1040 if (tevent_req_nomem(subreq, req)) {
1041 return tevent_req_post(req, ev);
1043 tevent_req_set_callback(subreq, cli_session_setup_ntlmssp_done, req);
1046 tevent_req_nterror(req, status);
1047 return tevent_req_post(req, ev);
1050 static void cli_session_setup_ntlmssp_done(struct tevent_req *subreq)
1052 struct tevent_req *req = tevent_req_callback_data(
1053 subreq, struct tevent_req);
1054 struct cli_session_setup_ntlmssp_state *state = tevent_req_data(
1055 req, struct cli_session_setup_ntlmssp_state);
1056 DATA_BLOB blob_in, msg_in, blob_out;
1061 status = cli_sesssetup_blob_recv(subreq, talloc_tos(), &blob_in,
1063 TALLOC_FREE(subreq);
1064 data_blob_free(&state->blob_out);
1066 if (NT_STATUS_IS_OK(status)) {
1067 if (state->cli->server_domain[0] == '\0') {
1068 fstrcpy(state->cli->server_domain,
1069 state->ntlmssp_state->server.netbios_domain);
1071 cli_set_session_key(
1072 state->cli, state->ntlmssp_state->session_key);
1074 if (cli_simple_set_signing(
1075 state->cli, state->ntlmssp_state->session_key,
1077 && !cli_check_sign_mac(state->cli, inbuf, 1)) {
1078 TALLOC_FREE(subreq);
1079 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
1082 TALLOC_FREE(subreq);
1083 TALLOC_FREE(state->ntlmssp_state);
1084 tevent_req_done(req);
1087 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1088 tevent_req_nterror(req, status);
1092 if (blob_in.length == 0) {
1093 tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
1097 if ((state->turn == 1)
1098 && NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1099 DATA_BLOB tmp_blob = data_blob_null;
1100 /* the server might give us back two challenges */
1101 parse_ret = spnego_parse_challenge(blob_in, &msg_in,
1103 data_blob_free(&tmp_blob);
1105 parse_ret = spnego_parse_auth_response(blob_in, status,
1106 OID_NTLMSSP, &msg_in);
1111 DEBUG(3,("Failed to parse auth response\n"));
1112 if (NT_STATUS_IS_OK(status)
1113 || NT_STATUS_EQUAL(status,
1114 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1116 req, NT_STATUS_INVALID_NETWORK_RESPONSE);
1121 status = ntlmssp_update(state->ntlmssp_state, msg_in, &blob_out);
1123 if (!NT_STATUS_IS_OK(status)
1124 && !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1125 TALLOC_FREE(subreq);
1126 TALLOC_FREE(state->ntlmssp_state);
1127 tevent_req_nterror(req, status);
1131 state->blob_out = spnego_gen_auth(blob_out);
1132 TALLOC_FREE(subreq);
1133 if (tevent_req_nomem(state->blob_out.data, req)) {
1137 subreq = cli_sesssetup_blob_send(state, state->ev, state->cli,
1139 if (tevent_req_nomem(subreq, req)) {
1142 tevent_req_set_callback(subreq, cli_session_setup_ntlmssp_done, req);
1145 static NTSTATUS cli_session_setup_ntlmssp_recv(struct tevent_req *req)
1147 struct cli_session_setup_ntlmssp_state *state = tevent_req_data(
1148 req, struct cli_session_setup_ntlmssp_state);
1151 if (tevent_req_is_nterror(req, &status)) {
1152 state->cli->vuid = 0;
1155 return NT_STATUS_OK;
1158 static NTSTATUS cli_session_setup_ntlmssp(struct cli_state *cli,
1163 struct tevent_context *ev;
1164 struct tevent_req *req;
1165 NTSTATUS status = NT_STATUS_NO_MEMORY;
1167 if (cli_has_async_calls(cli)) {
1168 return NT_STATUS_INVALID_PARAMETER;
1170 ev = tevent_context_init(talloc_tos());
1174 req = cli_session_setup_ntlmssp_send(ev, ev, cli, user, pass, domain);
1178 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
1181 status = cli_session_setup_ntlmssp_recv(req);
1184 if (!NT_STATUS_IS_OK(status)) {
1185 cli_set_error(cli, status);
1190 /****************************************************************************
1191 Do a spnego encrypted session setup.
1193 user_domain: The shortname of the domain the user/machine is a member of.
1194 dest_realm: The realm we're connecting to, if NULL we use our default realm.
1195 ****************************************************************************/
1197 ADS_STATUS cli_session_setup_spnego(struct cli_state *cli, const char *user,
1198 const char *pass, const char *user_domain,
1199 const char * dest_realm)
1201 char *principal = NULL;
1202 char *OIDs[ASN1_MAX_OIDS];
1205 const char *p = NULL;
1206 char *account = NULL;
1209 DEBUG(3,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli->secblob.length));
1211 /* the server might not even do spnego */
1212 if (cli->secblob.length <= 16) {
1213 DEBUG(3,("server didn't supply a full spnego negprot\n"));
1218 file_save("negprot.dat", cli->secblob.data, cli->secblob.length);
1221 /* there is 16 bytes of GUID before the real spnego packet starts */
1222 blob = data_blob(cli->secblob.data+16, cli->secblob.length-16);
1224 /* The server sent us the first part of the SPNEGO exchange in the
1225 * negprot reply. It is WRONG to depend on the principal sent in the
1226 * negprot reply, but right now we do it. If we don't receive one,
1227 * we try to best guess, then fall back to NTLM. */
1228 if (!spnego_parse_negTokenInit(talloc_tos(), blob, OIDs, &principal, NULL)) {
1229 data_blob_free(&blob);
1230 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1232 data_blob_free(&blob);
1234 /* make sure the server understands kerberos */
1235 for (i=0;OIDs[i];i++) {
1237 DEBUG(3,("got OID=%s\n", OIDs[i]));
1239 DEBUGADD(3,("got OID=%s\n", OIDs[i]));
1240 if (strcmp(OIDs[i], OID_KERBEROS5_OLD) == 0 ||
1241 strcmp(OIDs[i], OID_KERBEROS5) == 0) {
1242 cli->got_kerberos_mechanism = True;
1244 talloc_free(OIDs[i]);
1247 DEBUG(3,("got principal=%s\n", principal ? principal : "<null>"));
1249 status = cli_set_username(cli, user);
1250 if (!NT_STATUS_IS_OK(status)) {
1251 TALLOC_FREE(principal);
1252 return ADS_ERROR_NT(status);
1256 /* If password is set we reauthenticate to kerberos server
1257 * and do not store results */
1259 if (cli->got_kerberos_mechanism && cli->use_kerberos) {
1262 if (pass && *pass) {
1265 use_in_memory_ccache();
1266 ret = kerberos_kinit_password(user, pass, 0 /* no time correction for now */, NULL);
1269 TALLOC_FREE(principal);
1270 DEBUG(0, ("Kinit failed: %s\n", error_message(ret)));
1271 if (cli->fallback_after_kerberos)
1273 return ADS_ERROR_KRB5(ret);
1277 /* If we get a bad principal, try to guess it if
1278 we have a valid host NetBIOS name.
1280 if (strequal(principal, ADS_IGNORE_PRINCIPAL)) {
1281 TALLOC_FREE(principal);
1284 if (principal == NULL &&
1285 !is_ipaddress(cli->desthost) &&
1286 !strequal(STAR_SMBSERVER,
1289 char *machine = NULL;
1291 DEBUG(3,("cli_session_setup_spnego: got a "
1292 "bad server principal, trying to guess ...\n"));
1294 host = strchr_m(cli->desthost, '.');
1296 /* We had a '.' in the name. */
1297 machine = SMB_STRNDUP(cli->desthost,
1298 host - cli->desthost);
1300 machine = SMB_STRDUP(cli->desthost);
1302 if (machine == NULL) {
1303 TALLOC_FREE(principal);
1304 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
1308 realm = SMB_STRDUP(dest_realm);
1313 realm = kerberos_get_realm_from_hostname(cli->desthost);
1315 /* NetBIOS name - use our realm. */
1316 realm = kerberos_get_default_realm_from_ccache();
1320 if (realm && *realm) {
1323 principal = talloc_asprintf(talloc_tos(),
1328 /* NetBIOS name, use machine account. */
1329 principal = talloc_asprintf(talloc_tos(),
1337 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
1339 DEBUG(3,("cli_session_setup_spnego: guessed "
1340 "server principal=%s\n",
1341 principal ? principal : "<null>"));
1348 rc = cli_session_setup_kerberos(cli, principal,
1350 if (ADS_ERR_OK(rc) || !cli->fallback_after_kerberos) {
1351 TALLOC_FREE(principal);
1358 TALLOC_FREE(principal);
1362 account = talloc_strdup(talloc_tos(), user);
1364 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
1367 /* when falling back to ntlmssp while authenticating with a machine
1368 * account strip off the realm - gd */
1370 if ((p = strchr_m(user, '@')) != NULL) {
1371 account[PTR_DIFF(p,user)] = '\0';
1374 return ADS_ERROR_NT(cli_session_setup_ntlmssp(cli, account, pass, user_domain));
1377 /****************************************************************************
1378 Send a session setup. The username and workgroup is in UNIX character
1379 format and must be converted to DOS codepage format before sending. If the
1380 password is in plaintext, the same should be done.
1381 ****************************************************************************/
1383 NTSTATUS cli_session_setup(struct cli_state *cli,
1385 const char *pass, int passlen,
1386 const char *ntpass, int ntpasslen,
1387 const char *workgroup)
1393 fstrcpy(user2, user);
1402 /* allow for workgroups as part of the username */
1403 if ((p=strchr_m(user2,'\\')) || (p=strchr_m(user2,'/')) ||
1404 (p=strchr_m(user2,*lp_winbind_separator()))) {
1410 if (cli->protocol < PROTOCOL_LANMAN1) {
1411 return NT_STATUS_OK;
1414 /* now work out what sort of session setup we are going to
1415 do. I have split this into separate functions to make the
1416 flow a bit easier to understand (tridge) */
1418 /* if its an older server then we have to use the older request format */
1420 if (cli->protocol < PROTOCOL_NT1) {
1421 if (!lp_client_lanman_auth() && passlen != 24 && (*pass)) {
1422 DEBUG(1, ("Server requested LM password but 'client lanman auth'"
1424 return NT_STATUS_ACCESS_DENIED;
1427 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0 &&
1428 !lp_client_plaintext_auth() && (*pass)) {
1429 DEBUG(1, ("Server requested plaintext password but "
1430 "'client plaintext auth' is disabled\n"));
1431 return NT_STATUS_ACCESS_DENIED;
1434 return cli_session_setup_lanman2(cli, user, pass, passlen,
1438 /* if no user is supplied then we have to do an anonymous connection.
1439 passwords are ignored */
1441 if (!user || !*user)
1442 return cli_session_setup_guest(cli);
1444 /* if the server is share level then send a plaintext null
1445 password at this point. The password is sent in the tree
1448 if ((cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) == 0)
1449 return cli_session_setup_plaintext(cli, user, "", workgroup);
1451 /* if the server doesn't support encryption then we have to use
1452 plaintext. The second password is ignored */
1454 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
1455 if (!lp_client_plaintext_auth() && (*pass)) {
1456 DEBUG(1, ("Server requested plaintext password but "
1457 "'client plaintext auth' is disabled\n"));
1458 return NT_STATUS_ACCESS_DENIED;
1460 return cli_session_setup_plaintext(cli, user, pass, workgroup);
1463 /* if the server supports extended security then use SPNEGO */
1465 if (cli->capabilities & CAP_EXTENDED_SECURITY) {
1466 ADS_STATUS status = cli_session_setup_spnego(cli, user, pass,
1468 if (!ADS_ERR_OK(status)) {
1469 DEBUG(3, ("SPNEGO login failed: %s\n", ads_errstr(status)));
1470 return ads_ntstatus(status);
1475 /* otherwise do a NT1 style session setup */
1476 status = cli_session_setup_nt1(cli, user, pass, passlen,
1477 ntpass, ntpasslen, workgroup);
1478 if (!NT_STATUS_IS_OK(status)) {
1479 DEBUG(3,("cli_session_setup: NT1 session setup "
1480 "failed: %s\n", nt_errstr(status)));
1485 if (strstr(cli->server_type, "Samba")) {
1486 cli->is_samba = True;
1489 return NT_STATUS_OK;
1492 /****************************************************************************
1494 *****************************************************************************/
1496 struct cli_ulogoff_state {
1497 struct cli_state *cli;
1501 static void cli_ulogoff_done(struct tevent_req *subreq);
1503 struct tevent_req *cli_ulogoff_send(TALLOC_CTX *mem_ctx,
1504 struct tevent_context *ev,
1505 struct cli_state *cli)
1507 struct tevent_req *req, *subreq;
1508 struct cli_ulogoff_state *state;
1510 req = tevent_req_create(mem_ctx, &state, struct cli_ulogoff_state);
1516 SCVAL(state->vwv+0, 0, 0xFF);
1517 SCVAL(state->vwv+1, 0, 0);
1518 SSVAL(state->vwv+2, 0, 0);
1520 subreq = cli_smb_send(state, ev, cli, SMBulogoffX, 0, 2, state->vwv,
1522 if (tevent_req_nomem(subreq, req)) {
1523 return tevent_req_post(req, ev);
1525 tevent_req_set_callback(subreq, cli_ulogoff_done, req);
1529 static void cli_ulogoff_done(struct tevent_req *subreq)
1531 struct tevent_req *req = tevent_req_callback_data(
1532 subreq, struct tevent_req);
1533 struct cli_ulogoff_state *state = tevent_req_data(
1534 req, struct cli_ulogoff_state);
1537 status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
1538 if (!NT_STATUS_IS_OK(status)) {
1539 tevent_req_nterror(req, status);
1542 state->cli->vuid = -1;
1543 tevent_req_done(req);
1546 NTSTATUS cli_ulogoff_recv(struct tevent_req *req)
1548 return tevent_req_simple_recv_ntstatus(req);
1551 NTSTATUS cli_ulogoff(struct cli_state *cli)
1553 struct tevent_context *ev;
1554 struct tevent_req *req;
1555 NTSTATUS status = NT_STATUS_NO_MEMORY;
1557 if (cli_has_async_calls(cli)) {
1558 return NT_STATUS_INVALID_PARAMETER;
1560 ev = tevent_context_init(talloc_tos());
1564 req = cli_ulogoff_send(ev, ev, cli);
1568 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
1571 status = cli_ulogoff_recv(req);
1574 if (!NT_STATUS_IS_OK(status)) {
1575 cli_set_error(cli, status);
1580 /****************************************************************************
1582 ****************************************************************************/
1584 struct cli_tcon_andx_state {
1585 struct cli_state *cli;
1590 static void cli_tcon_andx_done(struct tevent_req *subreq);
1592 struct tevent_req *cli_tcon_andx_create(TALLOC_CTX *mem_ctx,
1593 struct event_context *ev,
1594 struct cli_state *cli,
1595 const char *share, const char *dev,
1596 const char *pass, int passlen,
1597 struct tevent_req **psmbreq)
1599 struct tevent_req *req, *subreq;
1600 struct cli_tcon_andx_state *state;
1608 req = tevent_req_create(mem_ctx, &state, struct cli_tcon_andx_state);
1615 fstrcpy(cli->share, share);
1617 /* in user level security don't send a password now */
1618 if (cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
1621 } else if (pass == NULL) {
1622 DEBUG(1, ("Server not using user level security and no "
1623 "password supplied.\n"));
1627 if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) &&
1628 *pass && passlen != 24) {
1629 if (!lp_client_lanman_auth()) {
1630 DEBUG(1, ("Server requested LANMAN password "
1631 "(share-level security) but "
1632 "'client lanman auth' is disabled\n"));
1637 * Non-encrypted passwords - convert to DOS codepage before
1641 SMBencrypt(pass, cli->secblob.data, (uchar *)pword);
1643 if((cli->sec_mode & (NEGOTIATE_SECURITY_USER_LEVEL
1644 |NEGOTIATE_SECURITY_CHALLENGE_RESPONSE))
1646 if (!lp_client_plaintext_auth() && (*pass)) {
1647 DEBUG(1, ("Server requested plaintext "
1648 "password but 'client plaintext "
1649 "auth' is disabled\n"));
1654 * Non-encrypted passwords - convert to DOS codepage
1657 passlen = clistr_push(cli, pword, pass, sizeof(pword),
1659 if (passlen == -1) {
1660 DEBUG(1, ("clistr_push(pword) failed\n"));
1665 memcpy(pword, pass, passlen);
1670 SCVAL(vwv+0, 0, 0xFF);
1673 SSVAL(vwv+2, 0, TCONX_FLAG_EXTENDED_RESPONSE);
1674 SSVAL(vwv+3, 0, passlen);
1677 bytes = (uint8_t *)talloc_memdup(state, pword, passlen);
1679 bytes = talloc_array(state, uint8_t, 0);
1685 tmp = talloc_asprintf_strupper_m(talloc_tos(), "\\\\%s\\%s",
1686 cli->desthost, share);
1691 bytes = smb_bytes_push_str(bytes, cli_ucs2(cli), tmp, strlen(tmp)+1,
1696 * Add the devicetype
1698 tmp = talloc_strdup_upper(talloc_tos(), dev);
1703 bytes = smb_bytes_push_str(bytes, false, tmp, strlen(tmp)+1, NULL);
1706 if (bytes == NULL) {
1711 state->bytes.iov_base = (void *)bytes;
1712 state->bytes.iov_len = talloc_get_size(bytes);
1714 subreq = cli_smb_req_create(state, ev, cli, SMBtconX, 0, 4, vwv,
1716 if (subreq == NULL) {
1720 tevent_req_set_callback(subreq, cli_tcon_andx_done, req);
1725 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
1726 return tevent_req_post(req, ev);
1729 struct tevent_req *cli_tcon_andx_send(TALLOC_CTX *mem_ctx,
1730 struct event_context *ev,
1731 struct cli_state *cli,
1732 const char *share, const char *dev,
1733 const char *pass, int passlen)
1735 struct tevent_req *req, *subreq;
1738 req = cli_tcon_andx_create(mem_ctx, ev, cli, share, dev, pass, passlen,
1743 if (subreq == NULL) {
1746 status = cli_smb_req_send(subreq);
1747 if (!NT_STATUS_IS_OK(status)) {
1748 tevent_req_nterror(req, status);
1749 return tevent_req_post(req, ev);
1754 static void cli_tcon_andx_done(struct tevent_req *subreq)
1756 struct tevent_req *req = tevent_req_callback_data(
1757 subreq, struct tevent_req);
1758 struct cli_tcon_andx_state *state = tevent_req_data(
1759 req, struct cli_tcon_andx_state);
1760 struct cli_state *cli = state->cli;
1769 status = cli_smb_recv(subreq, state, &in, 0, &wct, &vwv,
1770 &num_bytes, &bytes);
1771 TALLOC_FREE(subreq);
1772 if (!NT_STATUS_IS_OK(status)) {
1773 tevent_req_nterror(req, status);
1779 clistr_pull(inbuf, cli->dev, bytes, sizeof(fstring), num_bytes,
1780 STR_TERMINATE|STR_ASCII);
1782 if ((cli->protocol >= PROTOCOL_NT1) && (num_bytes == 3)) {
1783 /* almost certainly win95 - enable bug fixes */
1788 * Make sure that we have the optional support 16-bit field. WCT > 2.
1789 * Avoids issues when connecting to Win9x boxes sharing files
1792 cli->dfsroot = false;
1794 if ((wct > 2) && (cli->protocol >= PROTOCOL_LANMAN2)) {
1795 cli->dfsroot = ((SVAL(vwv+2, 0) & SMB_SHARE_IN_DFS) != 0);
1798 cli->cnum = SVAL(inbuf,smb_tid);
1799 tevent_req_done(req);
1802 NTSTATUS cli_tcon_andx_recv(struct tevent_req *req)
1804 return tevent_req_simple_recv_ntstatus(req);
1807 NTSTATUS cli_tcon_andx(struct cli_state *cli, const char *share,
1808 const char *dev, const char *pass, int passlen)
1810 TALLOC_CTX *frame = talloc_stackframe();
1811 struct event_context *ev;
1812 struct tevent_req *req;
1813 NTSTATUS status = NT_STATUS_OK;
1815 if (cli_has_async_calls(cli)) {
1817 * Can't use sync call while an async call is in flight
1819 status = NT_STATUS_INVALID_PARAMETER;
1823 ev = event_context_init(frame);
1825 status = NT_STATUS_NO_MEMORY;
1829 req = cli_tcon_andx_send(frame, ev, cli, share, dev, pass, passlen);
1831 status = NT_STATUS_NO_MEMORY;
1835 if (!tevent_req_poll(req, ev)) {
1836 status = map_nt_error_from_unix(errno);
1840 status = cli_tcon_andx_recv(req);
1843 if (!NT_STATUS_IS_OK(status)) {
1844 cli_set_error(cli, status);
1849 /****************************************************************************
1850 Send a tree disconnect.
1851 ****************************************************************************/
1853 struct cli_tdis_state {
1854 struct cli_state *cli;
1857 static void cli_tdis_done(struct tevent_req *subreq);
1859 struct tevent_req *cli_tdis_send(TALLOC_CTX *mem_ctx,
1860 struct tevent_context *ev,
1861 struct cli_state *cli)
1863 struct tevent_req *req, *subreq;
1864 struct cli_tdis_state *state;
1866 req = tevent_req_create(mem_ctx, &state, struct cli_tdis_state);
1872 subreq = cli_smb_send(state, ev, cli, SMBtdis, 0, 0, NULL, 0, NULL);
1873 if (tevent_req_nomem(subreq, req)) {
1874 return tevent_req_post(req, ev);
1876 tevent_req_set_callback(subreq, cli_tdis_done, req);
1880 static void cli_tdis_done(struct tevent_req *subreq)
1882 struct tevent_req *req = tevent_req_callback_data(
1883 subreq, struct tevent_req);
1884 struct cli_tdis_state *state = tevent_req_data(
1885 req, struct cli_tdis_state);
1888 status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
1889 TALLOC_FREE(subreq);
1890 if (!NT_STATUS_IS_OK(status)) {
1891 tevent_req_nterror(req, status);
1894 state->cli->cnum = -1;
1895 tevent_req_done(req);
1898 NTSTATUS cli_tdis_recv(struct tevent_req *req)
1900 return tevent_req_simple_recv_ntstatus(req);
1903 NTSTATUS cli_tdis(struct cli_state *cli)
1905 struct tevent_context *ev;
1906 struct tevent_req *req;
1907 NTSTATUS status = NT_STATUS_NO_MEMORY;
1909 if (cli_has_async_calls(cli)) {
1910 return NT_STATUS_INVALID_PARAMETER;
1912 ev = tevent_context_init(talloc_tos());
1916 req = cli_tdis_send(ev, ev, cli);
1920 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
1923 status = cli_tdis_recv(req);
1926 if (!NT_STATUS_IS_OK(status)) {
1927 cli_set_error(cli, status);
1932 /****************************************************************************
1933 Send a negprot command.
1934 ****************************************************************************/
1936 void cli_negprot_sendsync(struct cli_state *cli)
1941 if (cli->protocol < PROTOCOL_NT1)
1942 cli->use_spnego = False;
1944 memset(cli->outbuf,'\0',smb_size);
1946 /* setup the protocol strings */
1947 cli_set_message(cli->outbuf,0,0,True);
1949 p = smb_buf(cli->outbuf);
1950 for (numprots=0; numprots < ARRAY_SIZE(prots); numprots++) {
1951 if (prots[numprots].prot > cli->protocol) {
1955 p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
1958 SCVAL(cli->outbuf,smb_com,SMBnegprot);
1959 cli_setup_bcc(cli, p);
1960 cli_setup_packet(cli);
1962 SCVAL(smb_buf(cli->outbuf),0,2);
1967 /****************************************************************************
1968 Send a negprot command.
1969 ****************************************************************************/
1971 struct cli_negprot_state {
1972 struct cli_state *cli;
1975 static void cli_negprot_done(struct tevent_req *subreq);
1977 struct tevent_req *cli_negprot_send(TALLOC_CTX *mem_ctx,
1978 struct event_context *ev,
1979 struct cli_state *cli)
1981 struct tevent_req *req, *subreq;
1982 struct cli_negprot_state *state;
1983 uint8_t *bytes = NULL;
1987 req = tevent_req_create(mem_ctx, &state, struct cli_negprot_state);
1993 if (cli->protocol < PROTOCOL_NT1)
1994 cli->use_spnego = False;
1996 /* setup the protocol strings */
1997 for (numprots=0; numprots < ARRAY_SIZE(prots); numprots++) {
1999 if (prots[numprots].prot > cli->protocol) {
2002 bytes = (uint8_t *)talloc_append_blob(
2003 state, bytes, data_blob_const(&c, sizeof(c)));
2004 if (tevent_req_nomem(bytes, req)) {
2005 return tevent_req_post(req, ev);
2007 bytes = smb_bytes_push_str(bytes, false,
2008 prots[numprots].name,
2009 strlen(prots[numprots].name)+1,
2011 if (tevent_req_nomem(bytes, req)) {
2012 return tevent_req_post(req, ev);
2019 subreq = cli_smb_send(state, ev, cli, SMBnegprot, 0, 0, NULL,
2020 talloc_get_size(bytes), bytes);
2023 if (tevent_req_nomem(subreq, req)) {
2024 return tevent_req_post(req, ev);
2026 tevent_req_set_callback(subreq, cli_negprot_done, req);
2030 static void cli_negprot_done(struct tevent_req *subreq)
2032 struct tevent_req *req = tevent_req_callback_data(
2033 subreq, struct tevent_req);
2034 struct cli_negprot_state *state = tevent_req_data(
2035 req, struct cli_negprot_state);
2036 struct cli_state *cli = state->cli;
2045 status = cli_smb_recv(subreq, state, &inbuf, 1, &wct, &vwv,
2046 &num_bytes, &bytes);
2047 TALLOC_FREE(subreq);
2048 if (!NT_STATUS_IS_OK(status)) {
2049 tevent_req_nterror(req, status);
2053 protnum = SVAL(vwv, 0);
2055 if ((protnum >= ARRAY_SIZE(prots))
2056 || (prots[protnum].prot > cli->protocol)) {
2057 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
2061 cli->protocol = prots[protnum].prot;
2063 if ((cli->protocol < PROTOCOL_NT1) &&
2064 client_is_signing_mandatory(cli)) {
2065 DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
2066 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
2070 if (cli->protocol >= PROTOCOL_NT1) {
2072 bool negotiated_smb_signing = false;
2075 cli->sec_mode = CVAL(vwv + 1, 0);
2076 cli->max_mux = SVAL(vwv + 1, 1);
2077 cli->max_xmit = IVAL(vwv + 3, 1);
2078 cli->sesskey = IVAL(vwv + 7, 1);
2079 cli->serverzone = SVALS(vwv + 15, 1);
2080 cli->serverzone *= 60;
2081 /* this time arrives in real GMT */
2082 ts = interpret_long_date(((char *)(vwv+11))+1);
2083 cli->servertime = ts.tv_sec;
2084 cli->secblob = data_blob(bytes, num_bytes);
2085 cli->capabilities = IVAL(vwv + 9, 1);
2086 if (cli->capabilities & CAP_RAW_MODE) {
2087 cli->readbraw_supported = True;
2088 cli->writebraw_supported = True;
2090 /* work out if they sent us a workgroup */
2091 if (!(cli->capabilities & CAP_EXTENDED_SECURITY) &&
2092 smb_buflen(cli->inbuf) > 8) {
2093 clistr_pull(cli->inbuf, cli->server_domain,
2094 bytes+8, sizeof(cli->server_domain),
2096 STR_UNICODE|STR_NOALIGN);
2100 * As signing is slow we only turn it on if either the client or
2101 * the server require it. JRA.
2104 if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED) {
2105 /* Fail if server says signing is mandatory and we don't want to support it. */
2106 if (!client_is_signing_allowed(cli)) {
2107 DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
2108 tevent_req_nterror(req,
2109 NT_STATUS_ACCESS_DENIED);
2112 negotiated_smb_signing = true;
2113 } else if (client_is_signing_mandatory(cli) && client_is_signing_allowed(cli)) {
2114 /* Fail if client says signing is mandatory and the server doesn't support it. */
2115 if (!(cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED)) {
2116 DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
2117 tevent_req_nterror(req,
2118 NT_STATUS_ACCESS_DENIED);
2121 negotiated_smb_signing = true;
2122 } else if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) {
2123 negotiated_smb_signing = true;
2126 if (negotiated_smb_signing) {
2127 cli_set_signing_negotiated(cli);
2130 if (cli->capabilities & (CAP_LARGE_READX|CAP_LARGE_WRITEX)) {
2131 SAFE_FREE(cli->outbuf);
2132 SAFE_FREE(cli->inbuf);
2133 cli->outbuf = (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE+LARGE_WRITEX_HDR_SIZE+SAFETY_MARGIN);
2134 cli->inbuf = (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE+LARGE_WRITEX_HDR_SIZE+SAFETY_MARGIN);
2135 cli->bufsize = CLI_SAMBA_MAX_LARGE_READX_SIZE + LARGE_WRITEX_HDR_SIZE;
2138 } else if (cli->protocol >= PROTOCOL_LANMAN1) {
2139 cli->use_spnego = False;
2140 cli->sec_mode = SVAL(vwv + 1, 0);
2141 cli->max_xmit = SVAL(vwv + 2, 0);
2142 cli->max_mux = SVAL(vwv + 3, 0);
2143 cli->sesskey = IVAL(vwv + 6, 0);
2144 cli->serverzone = SVALS(vwv + 10, 0);
2145 cli->serverzone *= 60;
2146 /* this time is converted to GMT by make_unix_date */
2147 cli->servertime = cli_make_unix_date(
2148 cli, (char *)(vwv + 8));
2149 cli->readbraw_supported = ((SVAL(vwv + 5, 0) & 0x1) != 0);
2150 cli->writebraw_supported = ((SVAL(vwv + 5, 0) & 0x2) != 0);
2151 cli->secblob = data_blob(bytes, num_bytes);
2153 /* the old core protocol */
2154 cli->use_spnego = False;
2156 cli->serverzone = get_time_zone(time(NULL));
2159 cli->max_xmit = MIN(cli->max_xmit, CLI_BUFFER_SIZE);
2161 /* a way to force ascii SMB */
2162 if (getenv("CLI_FORCE_ASCII"))
2163 cli->capabilities &= ~CAP_UNICODE;
2165 tevent_req_done(req);
2168 NTSTATUS cli_negprot_recv(struct tevent_req *req)
2170 return tevent_req_simple_recv_ntstatus(req);
2173 NTSTATUS cli_negprot(struct cli_state *cli)
2175 TALLOC_CTX *frame = talloc_stackframe();
2176 struct event_context *ev;
2177 struct tevent_req *req;
2178 NTSTATUS status = NT_STATUS_OK;
2180 if (cli_has_async_calls(cli)) {
2182 * Can't use sync call while an async call is in flight
2184 status = NT_STATUS_INVALID_PARAMETER;
2188 ev = event_context_init(frame);
2190 status = NT_STATUS_NO_MEMORY;
2194 req = cli_negprot_send(frame, ev, cli);
2196 status = NT_STATUS_NO_MEMORY;
2200 if (!tevent_req_poll(req, ev)) {
2201 status = map_nt_error_from_unix(errno);
2205 status = cli_negprot_recv(req);
2208 if (!NT_STATUS_IS_OK(status)) {
2209 cli_set_error(cli, status);
2214 /****************************************************************************
2215 Send a session request. See rfc1002.txt 4.3 and 4.3.2.
2216 ****************************************************************************/
2218 bool cli_session_request(struct cli_state *cli,
2219 struct nmb_name *calling, struct nmb_name *called)
2225 /* 445 doesn't have session request */
2226 if (cli->port == 445)
2229 memcpy(&(cli->calling), calling, sizeof(*calling));
2230 memcpy(&(cli->called ), called , sizeof(*called ));
2232 /* put in the destination name */
2234 tmp = name_mangle(talloc_tos(), cli->called.name,
2235 cli->called.name_type);
2240 p = cli->outbuf+len;
2241 memcpy(p, tmp, name_len(tmp));
2242 len += name_len(tmp);
2247 tmp = name_mangle(talloc_tos(), cli->calling.name,
2248 cli->calling.name_type);
2253 p = cli->outbuf+len;
2254 memcpy(p, tmp, name_len(tmp));
2255 len += name_len(tmp);
2258 /* send a session request (RFC 1002) */
2259 /* setup the packet length
2260 * Remove four bytes from the length count, since the length
2261 * field in the NBT Session Service header counts the number
2262 * of bytes which follow. The cli_send_smb() function knows
2263 * about this and accounts for those four bytes.
2267 _smb_setlen(cli->outbuf,len);
2268 SCVAL(cli->outbuf,0,0x81);
2271 DEBUG(5,("Sent session request\n"));
2273 if (!cli_receive_smb(cli))
2276 if (CVAL(cli->inbuf,0) == 0x84) {
2277 /* C. Hoch 9/14/95 Start */
2278 /* For information, here is the response structure.
2279 * We do the byte-twiddling to for portability.
2280 struct RetargetResponse{
2282 unsigned char flags;
2288 uint16_t port = (CVAL(cli->inbuf,8)<<8)+CVAL(cli->inbuf,9);
2289 struct in_addr dest_ip;
2292 /* SESSION RETARGET */
2293 putip((char *)&dest_ip,cli->inbuf+4);
2294 in_addr_to_sockaddr_storage(&cli->dest_ss, dest_ip);
2296 status = open_socket_out(&cli->dest_ss, port,
2297 LONG_CONNECT_TIMEOUT, &cli->fd);
2298 if (!NT_STATUS_IS_OK(status)) {
2302 DEBUG(3,("Retargeted\n"));
2304 set_socket_options(cli->fd, lp_socket_options());
2311 DEBUG(0,("Retarget recursion - failing\n"));
2315 ret = cli_session_request(cli, calling, called);
2319 } /* C. Hoch 9/14/95 End */
2321 if (CVAL(cli->inbuf,0) != 0x82) {
2322 /* This is the wrong place to put the error... JRA. */
2323 cli->rap_error = CVAL(cli->inbuf,4);
2333 static void smb_sock_connected(struct tevent_req *req)
2335 struct fd_struct *pfd = tevent_req_callback_data(
2336 req, struct fd_struct);
2340 status = open_socket_out_defer_recv(req, &fd);
2341 if (NT_STATUS_IS_OK(status)) {
2346 static NTSTATUS open_smb_socket(const struct sockaddr_storage *pss,
2347 uint16_t *port, int timeout, int *pfd)
2349 struct event_context *ev;
2350 struct tevent_req *r139, *r445;
2351 struct fd_struct *fd139, *fd445;
2352 NTSTATUS status = NT_STATUS_NO_MEMORY;
2355 return open_socket_out(pss, *port, timeout, pfd);
2358 ev = event_context_init(talloc_tos());
2360 return NT_STATUS_NO_MEMORY;
2363 fd139 = talloc(ev, struct fd_struct);
2364 if (fd139 == NULL) {
2369 fd445 = talloc(ev, struct fd_struct);
2370 if (fd445 == NULL) {
2375 r445 = open_socket_out_defer_send(ev, ev, timeval_set(0, 0),
2377 r139 = open_socket_out_defer_send(ev, ev, timeval_set(0, 3000),
2379 if ((r445 == NULL) || (r139 == NULL)) {
2382 tevent_req_set_callback(r445, smb_sock_connected, fd445);
2383 tevent_req_set_callback(r139, smb_sock_connected, fd139);
2385 while ((fd445->fd == -1) && (fd139->fd == -1)
2386 && (tevent_req_is_in_progress(r139)
2387 || tevent_req_is_in_progress(r445))) {
2388 event_loop_once(ev);
2391 if ((fd139->fd != -1) && (fd445->fd != -1)) {
2396 if (fd445->fd != -1) {
2399 status = NT_STATUS_OK;
2402 if (fd139->fd != -1) {
2405 status = NT_STATUS_OK;
2409 status = open_socket_out_defer_recv(r445, &fd445->fd);
2415 /****************************************************************************
2416 Open the client sockets.
2417 ****************************************************************************/
2419 NTSTATUS cli_connect(struct cli_state *cli,
2421 struct sockaddr_storage *dest_ss)
2424 int name_type = 0x20;
2425 TALLOC_CTX *frame = talloc_stackframe();
2426 unsigned int num_addrs = 0;
2428 struct sockaddr_storage *ss_arr = NULL;
2431 /* reasonable default hostname */
2433 host = STAR_SMBSERVER;
2436 fstrcpy(cli->desthost, host);
2438 /* allow hostnames of the form NAME#xx and do a netbios lookup */
2439 if ((p = strchr(cli->desthost, '#'))) {
2440 name_type = strtol(p+1, NULL, 16);
2444 if (!dest_ss || is_zero_addr((struct sockaddr *)dest_ss)) {
2445 NTSTATUS status =resolve_name_list(frame,
2450 if (!NT_STATUS_IS_OK(status)) {
2452 return NT_STATUS_BAD_NETWORK_NAME;
2456 ss_arr = TALLOC_P(frame, struct sockaddr_storage);
2459 return NT_STATUS_NO_MEMORY;
2464 for (i = 0; i < num_addrs; i++) {
2465 cli->dest_ss = ss_arr[i];
2466 if (getenv("LIBSMB_PROG")) {
2467 cli->fd = sock_exec(getenv("LIBSMB_PROG"));
2469 uint16_t port = cli->port;
2471 status = open_smb_socket(&cli->dest_ss, &port,
2472 cli->timeout, &cli->fd);
2473 if (NT_STATUS_IS_OK(status)) {
2477 if (cli->fd == -1) {
2478 char addr[INET6_ADDRSTRLEN];
2479 print_sockaddr(addr, sizeof(addr), &ss_arr[i]);
2480 DEBUG(2,("Error connecting to %s (%s)\n",
2481 dest_ss?addr:host,strerror(errno)));
2483 /* Exit from loop on first connection. */
2488 if (cli->fd == -1) {
2490 return map_nt_error_from_unix(errno);
2494 *dest_ss = cli->dest_ss;
2497 set_socket_options(cli->fd, lp_socket_options());
2500 return NT_STATUS_OK;
2504 establishes a connection to after the negprot.
2505 @param output_cli A fully initialised cli structure, non-null only on success
2506 @param dest_host The netbios name of the remote host
2507 @param dest_ss (optional) The the destination IP, NULL for name based lookup
2508 @param port (optional) The destination port (0 for default)
2509 @param retry bool. Did this connection fail with a retryable error ?
2512 NTSTATUS cli_start_connection(struct cli_state **output_cli,
2513 const char *my_name,
2514 const char *dest_host,
2515 struct sockaddr_storage *dest_ss, int port,
2516 int signing_state, int flags,
2520 struct nmb_name calling;
2521 struct nmb_name called;
2522 struct cli_state *cli;
2523 struct sockaddr_storage ss;
2529 my_name = global_myname();
2531 if (!(cli = cli_initialise_ex(signing_state))) {
2532 return NT_STATUS_NO_MEMORY;
2535 make_nmb_name(&calling, my_name, 0x0);
2536 make_nmb_name(&called , dest_host, 0x20);
2538 cli_set_port(cli, port);
2539 cli_set_timeout(cli, 10000); /* 10 seconds. */
2549 DEBUG(3,("Connecting to host=%s\n", dest_host));
2551 nt_status = cli_connect(cli, dest_host, &ss);
2552 if (!NT_STATUS_IS_OK(nt_status)) {
2553 char addr[INET6_ADDRSTRLEN];
2554 print_sockaddr(addr, sizeof(addr), &ss);
2555 DEBUG(1,("cli_start_connection: failed to connect to %s (%s). Error %s\n",
2556 nmb_namestr(&called), addr, nt_errstr(nt_status) ));
2564 if (!cli_session_request(cli, &calling, &called)) {
2566 DEBUG(1,("session request to %s failed (%s)\n",
2567 called.name, cli_errstr(cli)));
2568 if ((p=strchr(called.name, '.')) && !is_ipaddress(called.name)) {
2572 if (strcmp(called.name, STAR_SMBSERVER)) {
2573 make_nmb_name(&called , STAR_SMBSERVER, 0x20);
2576 return NT_STATUS_BAD_NETWORK_NAME;
2579 if (flags & CLI_FULL_CONNECTION_DONT_SPNEGO)
2580 cli->use_spnego = False;
2581 else if (flags & CLI_FULL_CONNECTION_USE_KERBEROS)
2582 cli->use_kerberos = True;
2584 if ((flags & CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS) &&
2585 cli->use_kerberos) {
2586 cli->fallback_after_kerberos = true;
2588 if (flags & CLI_FULL_CONNECTION_USE_CCACHE) {
2589 cli->use_ccache = true;
2592 nt_status = cli_negprot(cli);
2593 if (!NT_STATUS_IS_OK(nt_status)) {
2594 DEBUG(1, ("failed negprot: %s\n", nt_errstr(nt_status)));
2600 return NT_STATUS_OK;
2605 establishes a connection right up to doing tconX, password specified.
2606 @param output_cli A fully initialised cli structure, non-null only on success
2607 @param dest_host The netbios name of the remote host
2608 @param dest_ip (optional) The the destination IP, NULL for name based lookup
2609 @param port (optional) The destination port (0 for default)
2610 @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
2611 @param service_type The 'type' of serivice.
2612 @param user Username, unix string
2613 @param domain User's domain
2614 @param password User's password, unencrypted unix string.
2615 @param retry bool. Did this connection fail with a retryable error ?
2618 NTSTATUS cli_full_connection(struct cli_state **output_cli,
2619 const char *my_name,
2620 const char *dest_host,
2621 struct sockaddr_storage *dest_ss, int port,
2622 const char *service, const char *service_type,
2623 const char *user, const char *domain,
2624 const char *password, int flags,
2629 struct cli_state *cli = NULL;
2630 int pw_len = password ? strlen(password)+1 : 0;
2634 if (password == NULL) {
2638 nt_status = cli_start_connection(&cli, my_name, dest_host,
2639 dest_ss, port, signing_state,
2642 if (!NT_STATUS_IS_OK(nt_status)) {
2646 cli->use_oplocks = ((flags & CLI_FULL_CONNECTION_OPLOCKS) != 0);
2647 cli->use_level_II_oplocks =
2648 ((flags & CLI_FULL_CONNECTION_LEVEL_II_OPLOCKS) != 0);
2650 nt_status = cli_session_setup(cli, user, password, pw_len, password,
2652 if (!NT_STATUS_IS_OK(nt_status)) {
2654 if (!(flags & CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK)) {
2655 DEBUG(1,("failed session setup with %s\n",
2656 nt_errstr(nt_status)));
2661 nt_status = cli_session_setup(cli, "", "", 0, "", 0, domain);
2662 if (!NT_STATUS_IS_OK(nt_status)) {
2663 DEBUG(1,("anonymous failed session setup with %s\n",
2664 nt_errstr(nt_status)));
2671 nt_status = cli_tcon_andx(cli, service, service_type, password,
2673 if (!NT_STATUS_IS_OK(nt_status)) {
2674 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status)));
2676 if (NT_STATUS_IS_OK(nt_status)) {
2677 nt_status = NT_STATUS_UNSUCCESSFUL;
2683 nt_status = cli_init_creds(cli, user, domain, password);
2684 if (!NT_STATUS_IS_OK(nt_status)) {
2690 return NT_STATUS_OK;
2693 /****************************************************************************
2694 Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
2695 ****************************************************************************/
2697 bool attempt_netbios_session_request(struct cli_state **ppcli, const char *srchost, const char *desthost,
2698 struct sockaddr_storage *pdest_ss)
2700 struct nmb_name calling, called;
2702 make_nmb_name(&calling, srchost, 0x0);
2705 * If the called name is an IP address
2706 * then use *SMBSERVER immediately.
2709 if(is_ipaddress(desthost)) {
2710 make_nmb_name(&called, STAR_SMBSERVER, 0x20);
2712 make_nmb_name(&called, desthost, 0x20);
2715 if (!cli_session_request(*ppcli, &calling, &called)) {
2717 struct nmb_name smbservername;
2719 make_nmb_name(&smbservername, STAR_SMBSERVER, 0x20);
2722 * If the name wasn't *SMBSERVER then
2723 * try with *SMBSERVER if the first name fails.
2726 if (nmb_name_equal(&called, &smbservername)) {
2729 * The name used was *SMBSERVER, don't bother with another name.
2732 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
2733 with error %s.\n", desthost, cli_errstr(*ppcli) ));
2738 cli_shutdown(*ppcli);
2740 *ppcli = cli_initialise();
2742 /* Out of memory... */
2746 status = cli_connect(*ppcli, desthost, pdest_ss);
2747 if (!NT_STATUS_IS_OK(status) ||
2748 !cli_session_request(*ppcli, &calling, &smbservername)) {
2749 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
2750 name *SMBSERVER with error %s\n", desthost, cli_errstr(*ppcli) ));
2758 /****************************************************************************
2759 Send an old style tcon.
2760 ****************************************************************************/
2761 NTSTATUS cli_raw_tcon(struct cli_state *cli,
2762 const char *service, const char *pass, const char *dev,
2763 uint16 *max_xmit, uint16 *tid)
2767 if (!lp_client_plaintext_auth() && (*pass)) {
2768 DEBUG(1, ("Server requested plaintext password but 'client "
2769 "plaintext auth' is disabled\n"));
2770 return NT_STATUS_ACCESS_DENIED;
2773 memset(cli->outbuf,'\0',smb_size);
2774 memset(cli->inbuf,'\0',smb_size);
2776 cli_set_message(cli->outbuf, 0, 0, True);
2777 SCVAL(cli->outbuf,smb_com,SMBtcon);
2778 cli_setup_packet(cli);
2780 p = smb_buf(cli->outbuf);
2781 *p++ = 4; p += clistr_push(cli, p, service, -1, STR_TERMINATE | STR_NOALIGN);
2782 *p++ = 4; p += clistr_push(cli, p, pass, -1, STR_TERMINATE | STR_NOALIGN);
2783 *p++ = 4; p += clistr_push(cli, p, dev, -1, STR_TERMINATE | STR_NOALIGN);
2785 cli_setup_bcc(cli, p);
2788 if (!cli_receive_smb(cli)) {
2789 return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
2792 if (cli_is_error(cli)) {
2793 return cli_nt_error(cli);
2796 *max_xmit = SVAL(cli->inbuf, smb_vwv0);
2797 *tid = SVAL(cli->inbuf, smb_vwv1);
2799 return NT_STATUS_OK;
2802 /* Return a cli_state pointing at the IPC$ share for the given server */
2804 struct cli_state *get_ipc_connect(char *server,
2805 struct sockaddr_storage *server_ss,
2806 const struct user_auth_info *user_info)
2808 struct cli_state *cli;
2810 uint32_t flags = CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK;
2812 if (user_info->use_kerberos) {
2813 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
2816 nt_status = cli_full_connection(&cli, NULL, server, server_ss, 0, "IPC$", "IPC",
2817 user_info->username ? user_info->username : "",
2819 user_info->password ? user_info->password : "",
2823 if (NT_STATUS_IS_OK(nt_status)) {
2825 } else if (is_ipaddress(server)) {
2826 /* windows 9* needs a correct NMB name for connections */
2827 fstring remote_name;
2829 if (name_status_find("*", 0, 0, server_ss, remote_name)) {
2830 cli = get_ipc_connect(remote_name, server_ss, user_info);
2839 * Given the IP address of a master browser on the network, return its
2840 * workgroup and connect to it.
2842 * This function is provided to allow additional processing beyond what
2843 * get_ipc_connect_master_ip_bcast() does, e.g. to retrieve the list of master
2844 * browsers and obtain each master browsers' list of domains (in case the
2845 * first master browser is recently on the network and has not yet
2846 * synchronized with other master browsers and therefore does not yet have the
2847 * entire network browse list)
2850 struct cli_state *get_ipc_connect_master_ip(TALLOC_CTX *ctx,
2851 struct ip_service *mb_ip,
2852 const struct user_auth_info *user_info,
2853 char **pp_workgroup_out)
2855 char addr[INET6_ADDRSTRLEN];
2857 struct cli_state *cli;
2858 struct sockaddr_storage server_ss;
2860 *pp_workgroup_out = NULL;
2862 print_sockaddr(addr, sizeof(addr), &mb_ip->ss);
2863 DEBUG(99, ("Looking up name of master browser %s\n",
2867 * Do a name status query to find out the name of the master browser.
2868 * We use <01><02>__MSBROWSE__<02>#01 if *#00 fails because a domain
2869 * master browser will not respond to a wildcard query (or, at least,
2870 * an NT4 server acting as the domain master browser will not).
2872 * We might be able to use ONLY the query on MSBROWSE, but that's not
2873 * yet been tested with all Windows versions, so until it is, leave
2874 * the original wildcard query as the first choice and fall back to
2875 * MSBROWSE if the wildcard query fails.
2877 if (!name_status_find("*", 0, 0x1d, &mb_ip->ss, name) &&
2878 !name_status_find(MSBROWSE, 1, 0x1d, &mb_ip->ss, name)) {
2880 DEBUG(99, ("Could not retrieve name status for %s\n",
2885 if (!find_master_ip(name, &server_ss)) {
2886 DEBUG(99, ("Could not find master ip for %s\n", name));
2890 *pp_workgroup_out = talloc_strdup(ctx, name);
2892 DEBUG(4, ("found master browser %s, %s\n", name, addr));
2894 print_sockaddr(addr, sizeof(addr), &server_ss);
2895 cli = get_ipc_connect(addr, &server_ss, user_info);
2901 * Return the IP address and workgroup of a master browser on the network, and
2905 struct cli_state *get_ipc_connect_master_ip_bcast(TALLOC_CTX *ctx,
2906 const struct user_auth_info *user_info,
2907 char **pp_workgroup_out)
2909 struct ip_service *ip_list;
2910 struct cli_state *cli;
2913 *pp_workgroup_out = NULL;
2915 DEBUG(99, ("Do broadcast lookup for workgroups on local network\n"));
2917 /* Go looking for workgroups by broadcasting on the local network */
2919 if (!NT_STATUS_IS_OK(name_resolve_bcast(MSBROWSE, 1, &ip_list,
2921 DEBUG(99, ("No master browsers responded\n"));
2925 for (i = 0; i < count; i++) {
2926 char addr[INET6_ADDRSTRLEN];
2927 print_sockaddr(addr, sizeof(addr), &ip_list[i].ss);
2928 DEBUG(99, ("Found master browser %s\n", addr));
2930 cli = get_ipc_connect_master_ip(ctx, &ip_list[i],
2931 user_info, pp_workgroup_out);