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 /* For ucs2 passwords clistr_push calls ucs2_align, which causes
252 * the space taken by the unicode password to be one byte too
253 * long (as we're on an odd byte boundary here). Reduce the
254 * count by 1 to cope with this. Fixes smbclient against NetApp
255 * servers which can't cope. Fix from
256 * bryan.kolodziej@allenlund.com in bug #3840.
258 p
+= clistr_push(cli
, p
, pass
, -1, STR_UNICODE
|STR_TERMINATE
); /* unicode password */
259 SSVAL(cli
->outbuf
,smb_vwv8
,PTR_DIFF(p
, smb_buf(cli
->outbuf
))-1);
262 p
+= clistr_push(cli
, p
, user
, -1, STR_TERMINATE
); /* username */
263 p
+= clistr_push(cli
, p
, workgroup
, -1, STR_TERMINATE
); /* workgroup */
264 p
+= clistr_push(cli
, p
, "Unix", -1, STR_TERMINATE
);
265 p
+= clistr_push(cli
, p
, lanman
, -1, STR_TERMINATE
);
266 cli_setup_bcc(cli
, p
);
268 if (!cli_send_smb(cli
) || !cli_receive_smb(cli
)) {
269 return cli_nt_error(cli
);
272 show_msg(cli
->inbuf
);
274 if (cli_is_error(cli
)) {
275 return cli_nt_error(cli
);
278 cli
->vuid
= SVAL(cli
->inbuf
,smb_uid
);
279 p
= smb_buf(cli
->inbuf
);
280 p
+= clistr_pull(cli
, cli
->server_os
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
281 p
+= clistr_pull(cli
, cli
->server_type
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
282 p
+= clistr_pull(cli
, cli
->server_domain
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
283 fstrcpy(cli
->user_name
, user
);
285 if (strstr(cli
->server_type
, "Samba")) {
286 cli
->is_samba
= True
;
292 /****************************************************************************
293 do a NT1 NTLM/LM encrypted session setup - for when extended security
295 @param cli client state to create do session setup on
297 @param pass *either* cleartext password (passlen !=24) or LM response.
298 @param ntpass NT response, implies ntpasslen >=24, implies pass is not clear
299 @param workgroup The user's domain.
300 ****************************************************************************/
302 static NTSTATUS
cli_session_setup_nt1(struct cli_state
*cli
, const char *user
,
303 const char *pass
, size_t passlen
,
304 const char *ntpass
, size_t ntpasslen
,
305 const char *workgroup
)
307 uint32 capabilities
= cli_session_setup_capabilities(cli
);
308 DATA_BLOB lm_response
= data_blob_null
;
309 DATA_BLOB nt_response
= data_blob_null
;
310 DATA_BLOB session_key
= data_blob_null
;
315 /* do nothing - guest login */
316 } else if (passlen
!= 24) {
317 if (lp_client_ntlmv2_auth()) {
318 DATA_BLOB server_chal
;
319 DATA_BLOB names_blob
;
320 server_chal
= data_blob(cli
->secblob
.data
, MIN(cli
->secblob
.length
, 8));
322 /* note that the 'workgroup' here is a best guess - we don't know
323 the server's domain at this point. The 'server name' is also
326 names_blob
= NTLMv2_generate_names_blob(cli
->called
.name
, workgroup
);
328 if (!SMBNTLMv2encrypt(user
, workgroup
, pass
, &server_chal
,
330 &lm_response
, &nt_response
, &session_key
)) {
331 data_blob_free(&names_blob
);
332 data_blob_free(&server_chal
);
333 return NT_STATUS_ACCESS_DENIED
;
335 data_blob_free(&names_blob
);
336 data_blob_free(&server_chal
);
340 E_md4hash(pass
, nt_hash
);
343 nt_response
= data_blob_null
;
345 nt_response
= data_blob(NULL
, 24);
346 SMBNTencrypt(pass
,cli
->secblob
.data
,nt_response
.data
);
348 /* non encrypted password supplied. Ignore ntpass. */
349 if (lp_client_lanman_auth()) {
350 lm_response
= data_blob(NULL
, 24);
351 if (!SMBencrypt(pass
,cli
->secblob
.data
, lm_response
.data
)) {
352 /* Oops, the LM response is invalid, just put
353 the NT response there instead */
354 data_blob_free(&lm_response
);
355 lm_response
= data_blob(nt_response
.data
, nt_response
.length
);
358 /* LM disabled, place NT# in LM field instead */
359 lm_response
= data_blob(nt_response
.data
, nt_response
.length
);
362 session_key
= data_blob(NULL
, 16);
364 E_deshash(pass
, session_key
.data
);
365 memset(&session_key
.data
[8], '\0', 8);
367 SMBsesskeygen_ntv1(nt_hash
, NULL
, session_key
.data
);
371 cli_simple_set_signing(cli
, session_key
, lm_response
);
373 cli_simple_set_signing(cli
, session_key
, nt_response
);
376 /* pre-encrypted password supplied. Only used for
377 security=server, can't do
378 signing because we don't have original key */
380 lm_response
= data_blob(pass
, passlen
);
381 nt_response
= data_blob(ntpass
, ntpasslen
);
384 /* send a session setup command */
385 memset(cli
->outbuf
,'\0',smb_size
);
387 cli_set_message(cli
->outbuf
,13,0,True
);
388 SCVAL(cli
->outbuf
,smb_com
,SMBsesssetupX
);
389 cli_setup_packet(cli
);
391 SCVAL(cli
->outbuf
,smb_vwv0
,0xFF);
392 SSVAL(cli
->outbuf
,smb_vwv2
,CLI_BUFFER_SIZE
);
393 SSVAL(cli
->outbuf
,smb_vwv3
,2);
394 SSVAL(cli
->outbuf
,smb_vwv4
,cli
->pid
);
395 SIVAL(cli
->outbuf
,smb_vwv5
,cli
->sesskey
);
396 SSVAL(cli
->outbuf
,smb_vwv7
,lm_response
.length
);
397 SSVAL(cli
->outbuf
,smb_vwv8
,nt_response
.length
);
398 SIVAL(cli
->outbuf
,smb_vwv11
,capabilities
);
399 p
= smb_buf(cli
->outbuf
);
400 if (lm_response
.length
) {
401 memcpy(p
,lm_response
.data
, lm_response
.length
); p
+= lm_response
.length
;
403 if (nt_response
.length
) {
404 memcpy(p
,nt_response
.data
, nt_response
.length
); p
+= nt_response
.length
;
406 p
+= clistr_push(cli
, p
, user
, -1, STR_TERMINATE
);
408 /* Upper case here might help some NTLMv2 implementations */
409 p
+= clistr_push(cli
, p
, workgroup
, -1, STR_TERMINATE
|STR_UPPER
);
410 p
+= clistr_push(cli
, p
, "Unix", -1, STR_TERMINATE
);
411 p
+= clistr_push(cli
, p
, "Samba", -1, STR_TERMINATE
);
412 cli_setup_bcc(cli
, p
);
414 if (!cli_send_smb(cli
) || !cli_receive_smb(cli
)) {
415 result
= cli_nt_error(cli
);
419 /* show_msg(cli->inbuf); */
421 if (cli_is_error(cli
)) {
422 result
= cli_nt_error(cli
);
426 /* use the returned vuid from now on */
427 cli
->vuid
= SVAL(cli
->inbuf
,smb_uid
);
429 p
= smb_buf(cli
->inbuf
);
430 p
+= clistr_pull(cli
, cli
->server_os
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
431 p
+= clistr_pull(cli
, cli
->server_type
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
432 p
+= clistr_pull(cli
, cli
->server_domain
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
434 if (strstr(cli
->server_type
, "Samba")) {
435 cli
->is_samba
= True
;
438 fstrcpy(cli
->user_name
, user
);
440 if (session_key
.data
) {
441 /* Have plaintext orginal */
442 cli_set_session_key(cli
, session_key
);
445 result
= NT_STATUS_OK
;
447 data_blob_free(&lm_response
);
448 data_blob_free(&nt_response
);
449 data_blob_free(&session_key
);
453 /****************************************************************************
454 Send a extended security session setup blob
455 ****************************************************************************/
457 static bool cli_session_setup_blob_send(struct cli_state
*cli
, DATA_BLOB blob
)
459 uint32 capabilities
= cli_session_setup_capabilities(cli
);
462 capabilities
|= CAP_EXTENDED_SECURITY
;
464 /* send a session setup command */
465 memset(cli
->outbuf
,'\0',smb_size
);
467 cli_set_message(cli
->outbuf
,12,0,True
);
468 SCVAL(cli
->outbuf
,smb_com
,SMBsesssetupX
);
470 cli_setup_packet(cli
);
472 SCVAL(cli
->outbuf
,smb_vwv0
,0xFF);
473 SSVAL(cli
->outbuf
,smb_vwv2
,CLI_BUFFER_SIZE
);
474 SSVAL(cli
->outbuf
,smb_vwv3
,2);
475 SSVAL(cli
->outbuf
,smb_vwv4
,1);
476 SIVAL(cli
->outbuf
,smb_vwv5
,0);
477 SSVAL(cli
->outbuf
,smb_vwv7
,blob
.length
);
478 SIVAL(cli
->outbuf
,smb_vwv10
,capabilities
);
479 p
= smb_buf(cli
->outbuf
);
480 memcpy(p
, blob
.data
, blob
.length
);
482 p
+= clistr_push(cli
, p
, "Unix", -1, STR_TERMINATE
);
483 p
+= clistr_push(cli
, p
, "Samba", -1, STR_TERMINATE
);
484 cli_setup_bcc(cli
, p
);
485 return cli_send_smb(cli
);
488 /****************************************************************************
489 Send a extended security session setup blob, returning a reply blob.
490 ****************************************************************************/
492 static DATA_BLOB
cli_session_setup_blob_receive(struct cli_state
*cli
)
494 DATA_BLOB blob2
= data_blob_null
;
498 if (!cli_receive_smb(cli
))
501 show_msg(cli
->inbuf
);
503 if (cli_is_error(cli
) && !NT_STATUS_EQUAL(cli_nt_error(cli
),
504 NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
508 /* use the returned vuid from now on */
509 cli
->vuid
= SVAL(cli
->inbuf
,smb_uid
);
511 p
= smb_buf(cli
->inbuf
);
513 blob2
= data_blob(p
, SVAL(cli
->inbuf
, smb_vwv3
));
516 p
+= clistr_pull(cli
, cli
->server_os
, p
, sizeof(fstring
), -1, STR_TERMINATE
);
518 /* w2k with kerberos doesn't properly null terminate this field */
519 len
= smb_buflen(cli
->inbuf
) - PTR_DIFF(p
, smb_buf(cli
->inbuf
));
520 p
+= clistr_pull(cli
, cli
->server_type
, p
, sizeof(fstring
), len
, 0);
526 /****************************************************************************
527 Send a extended security session setup blob, returning a reply blob.
528 ****************************************************************************/
530 /* The following is calculated from :
532 * (smb_wcnt * 2) = 24 (smb_wcnt == 12 in cli_session_setup_blob_send() )
533 * (strlen("Unix") + 1 + strlen("Samba") + 1) * 2 = 22 (unicode strings at
537 #define BASE_SESSSETUP_BLOB_PACKET_SIZE (35 + 24 + 22)
539 static bool cli_session_setup_blob(struct cli_state
*cli
, DATA_BLOB blob
, DATA_BLOB session_key_krb5
)
541 int32 remaining
= blob
.length
;
543 DATA_BLOB send_blob
= data_blob_null
;
544 int32 max_blob_size
= 0;
545 DATA_BLOB receive_blob
= data_blob_null
;
547 if (cli
->max_xmit
< BASE_SESSSETUP_BLOB_PACKET_SIZE
+ 1) {
548 DEBUG(0,("cli_session_setup_blob: cli->max_xmit too small "
549 "(was %u, need minimum %u)\n",
550 (unsigned int)cli
->max_xmit
,
551 BASE_SESSSETUP_BLOB_PACKET_SIZE
));
552 cli_set_nt_error(cli
, NT_STATUS_INVALID_PARAMETER
);
556 max_blob_size
= cli
->max_xmit
- BASE_SESSSETUP_BLOB_PACKET_SIZE
;
558 while ( remaining
> 0) {
559 if (remaining
>= max_blob_size
) {
560 send_blob
.length
= max_blob_size
;
561 remaining
-= max_blob_size
;
563 DATA_BLOB null_blob
= data_blob_null
;
565 send_blob
.length
= remaining
;
568 /* This is the last packet in the sequence - turn signing on. */
569 cli_simple_set_signing(cli
, session_key_krb5
, null_blob
);
572 send_blob
.data
= &blob
.data
[cur
];
573 cur
+= send_blob
.length
;
575 DEBUG(10, ("cli_session_setup_blob: Remaining (%u) sending (%u) current (%u)\n",
576 (unsigned int)remaining
,
577 (unsigned int)send_blob
.length
,
578 (unsigned int)cur
));
580 if (!cli_session_setup_blob_send(cli
, send_blob
)) {
581 DEBUG(0, ("cli_session_setup_blob: send failed\n"));
585 receive_blob
= cli_session_setup_blob_receive(cli
);
586 data_blob_free(&receive_blob
);
588 if (cli_is_error(cli
) &&
589 !NT_STATUS_EQUAL( cli_get_nt_error(cli
),
590 NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
591 DEBUG(0, ("cli_session_setup_blob: receive failed "
592 "(%s)\n", nt_errstr(cli_get_nt_error(cli
))));
601 /****************************************************************************
602 Use in-memory credentials cache
603 ****************************************************************************/
605 static void use_in_memory_ccache(void) {
606 setenv(KRB5_ENV_CCNAME
, "MEMORY:cliconnect", 1);
609 /****************************************************************************
610 Do a spnego/kerberos encrypted session setup.
611 ****************************************************************************/
613 static ADS_STATUS
cli_session_setup_kerberos(struct cli_state
*cli
, const char *principal
, const char *workgroup
)
615 DATA_BLOB negTokenTarg
;
616 DATA_BLOB session_key_krb5
;
619 DEBUG(2,("Doing kerberos session setup\n"));
621 /* generate the encapsulated kerberos5 ticket */
622 rc
= spnego_gen_negTokenTarg(principal
, 0, &negTokenTarg
, &session_key_krb5
, 0, NULL
);
625 DEBUG(1, ("cli_session_setup_kerberos: spnego_gen_negTokenTarg failed: %s\n",
627 return ADS_ERROR_KRB5(rc
);
631 file_save("negTokenTarg.dat", negTokenTarg
.data
, negTokenTarg
.length
);
634 if (!cli_session_setup_blob(cli
, negTokenTarg
, session_key_krb5
)) {
635 data_blob_free(&negTokenTarg
);
636 data_blob_free(&session_key_krb5
);
637 return ADS_ERROR_NT(cli_nt_error(cli
));
640 cli_set_session_key(cli
, session_key_krb5
);
642 data_blob_free(&negTokenTarg
);
643 data_blob_free(&session_key_krb5
);
645 if (cli_is_error(cli
)) {
646 if (NT_STATUS_IS_OK(cli_nt_error(cli
))) {
647 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL
);
650 return ADS_ERROR_NT(cli_nt_error(cli
));
652 #endif /* HAVE_KRB5 */
655 /****************************************************************************
656 Do a spnego/NTLMSSP encrypted session setup.
657 ****************************************************************************/
659 static NTSTATUS
cli_session_setup_ntlmssp(struct cli_state
*cli
, const char *user
,
660 const char *pass
, const char *domain
)
662 struct ntlmssp_state
*ntlmssp_state
;
666 DATA_BLOB blob
= data_blob_null
;
667 DATA_BLOB blob_in
= data_blob_null
;
668 DATA_BLOB blob_out
= data_blob_null
;
670 cli_temp_set_signing(cli
);
672 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_client_start(&ntlmssp_state
))) {
675 ntlmssp_want_feature(ntlmssp_state
, NTLMSSP_FEATURE_SESSION_KEY
);
677 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_username(ntlmssp_state
, user
))) {
680 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_domain(ntlmssp_state
, domain
))) {
683 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_password(ntlmssp_state
, pass
))) {
688 nt_status
= ntlmssp_update(ntlmssp_state
,
690 data_blob_free(&blob_in
);
691 if (NT_STATUS_EQUAL(nt_status
, NT_STATUS_MORE_PROCESSING_REQUIRED
) || NT_STATUS_IS_OK(nt_status
)) {
693 /* and wrap it in a SPNEGO wrapper */
694 msg1
= gen_negTokenInit(OID_NTLMSSP
, blob_out
);
696 /* wrap it in SPNEGO */
697 msg1
= spnego_gen_auth(blob_out
);
700 /* now send that blob on its way */
701 if (!cli_session_setup_blob_send(cli
, msg1
)) {
702 DEBUG(3, ("Failed to send NTLMSSP/SPNEGO blob to server!\n"));
703 nt_status
= NT_STATUS_UNSUCCESSFUL
;
705 blob
= cli_session_setup_blob_receive(cli
);
707 nt_status
= cli_nt_error(cli
);
708 if (cli_is_error(cli
) && NT_STATUS_IS_OK(nt_status
)) {
709 if (cli
->smb_rw_error
== SMB_READ_BAD_SIG
) {
710 nt_status
= NT_STATUS_ACCESS_DENIED
;
712 nt_status
= NT_STATUS_UNSUCCESSFUL
;
716 data_blob_free(&msg1
);
720 if (NT_STATUS_IS_OK(nt_status
)) {
721 nt_status
= NT_STATUS_UNSUCCESSFUL
;
723 } else if ((turn
== 1) &&
724 NT_STATUS_EQUAL(nt_status
, NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
725 DATA_BLOB tmp_blob
= data_blob_null
;
726 /* the server might give us back two challenges */
727 if (!spnego_parse_challenge(blob
, &blob_in
,
729 DEBUG(3,("Failed to parse challenges\n"));
730 nt_status
= NT_STATUS_INVALID_PARAMETER
;
732 data_blob_free(&tmp_blob
);
734 if (!spnego_parse_auth_response(blob
, nt_status
, OID_NTLMSSP
,
736 DEBUG(3,("Failed to parse auth response\n"));
737 if (NT_STATUS_IS_OK(nt_status
)
738 || NT_STATUS_EQUAL(nt_status
, NT_STATUS_MORE_PROCESSING_REQUIRED
))
739 nt_status
= NT_STATUS_INVALID_PARAMETER
;
742 data_blob_free(&blob
);
743 data_blob_free(&blob_out
);
745 } while (NT_STATUS_EQUAL(nt_status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
747 data_blob_free(&blob_in
);
749 if (NT_STATUS_IS_OK(nt_status
)) {
751 DATA_BLOB key
= data_blob(ntlmssp_state
->session_key
.data
,
752 ntlmssp_state
->session_key
.length
);
753 DATA_BLOB null_blob
= data_blob_null
;
756 fstrcpy(cli
->server_domain
, ntlmssp_state
->server_domain
);
757 cli_set_session_key(cli
, ntlmssp_state
->session_key
);
759 res
= cli_simple_set_signing(cli
, key
, null_blob
);
761 data_blob_free(&key
);
765 /* 'resign' the last message, so we get the right sequence numbers
766 for checking the first reply from the server */
767 cli_calculate_sign_mac(cli
, cli
->outbuf
);
769 if (!cli_check_sign_mac(cli
, cli
->inbuf
)) {
770 nt_status
= NT_STATUS_ACCESS_DENIED
;
775 /* we have a reference conter on ntlmssp_state, if we are signing
776 then the state will be kept by the signing engine */
778 ntlmssp_end(&ntlmssp_state
);
780 if (!NT_STATUS_IS_OK(nt_status
)) {
786 /****************************************************************************
787 Do a spnego encrypted session setup.
788 ****************************************************************************/
790 ADS_STATUS
cli_session_setup_spnego(struct cli_state
*cli
, const char *user
,
791 const char *pass
, const char *domain
)
794 char *OIDs
[ASN1_MAX_OIDS
];
796 bool got_kerberos_mechanism
= False
;
799 DEBUG(3,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli
->secblob
.length
));
801 /* the server might not even do spnego */
802 if (cli
->secblob
.length
<= 16) {
803 DEBUG(3,("server didn't supply a full spnego negprot\n"));
808 file_save("negprot.dat", cli
->secblob
.data
, cli
->secblob
.length
);
811 /* there is 16 bytes of GUID before the real spnego packet starts */
812 blob
= data_blob(cli
->secblob
.data
+16, cli
->secblob
.length
-16);
814 /* the server sent us the first part of the SPNEGO exchange in the negprot
816 if (!spnego_parse_negTokenInit(blob
, OIDs
, &principal
)) {
817 data_blob_free(&blob
);
818 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER
);
820 data_blob_free(&blob
);
822 /* make sure the server understands kerberos */
823 for (i
=0;OIDs
[i
];i
++) {
824 DEBUG(3,("got OID=%s\n", OIDs
[i
]));
825 if (strcmp(OIDs
[i
], OID_KERBEROS5_OLD
) == 0 ||
826 strcmp(OIDs
[i
], OID_KERBEROS5
) == 0) {
827 got_kerberos_mechanism
= True
;
832 DEBUG(3,("got principal=%s\n", principal
? principal
: "<null>"));
834 if (got_kerberos_mechanism
&& (principal
== NULL
)) {
836 * It is WRONG to depend on the principal sent in the negprot
837 * reply, but right now we do it. So for safety (don't
838 * segfault later) disable Kerberos when no principal was
841 DEBUG(1, ("Kerberos mech was offered, but no principal was "
842 "sent, disabling Kerberos\n"));
843 cli
->use_kerberos
= False
;
846 fstrcpy(cli
->user_name
, user
);
849 /* If password is set we reauthenticate to kerberos server
850 * and do not store results */
852 if (got_kerberos_mechanism
&& cli
->use_kerberos
) {
858 use_in_memory_ccache();
859 ret
= kerberos_kinit_password(user
, pass
, 0 /* no time correction for now */, NULL
);
862 SAFE_FREE(principal
);
863 DEBUG(0, ("Kinit failed: %s\n", error_message(ret
)));
864 if (cli
->fallback_after_kerberos
)
866 return ADS_ERROR_KRB5(ret
);
870 /* If we get a bad principal, try to guess it if
871 we have a valid host NetBIOS name.
873 if (strequal(principal
, ADS_IGNORE_PRINCIPAL
)) {
874 SAFE_FREE(principal
);
877 if (principal
== NULL
&&
878 !is_ipaddress(cli
->desthost
) &&
879 !strequal(star_smbserver_name
,
882 char *machine
= NULL
;
884 DEBUG(3,("cli_session_setup_spnego: got a "
885 "bad server principal, trying to guess ...\n"));
887 host
= strchr_m(cli
->desthost
, '.');
889 machine
= SMB_STRNDUP(cli
->desthost
,
890 host
- cli
->desthost
);
892 machine
= SMB_STRDUP(cli
->desthost
);
894 if (machine
== NULL
) {
895 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY
);
898 realm
= kerberos_get_default_realm_from_ccache();
899 if (realm
&& *realm
) {
900 if (asprintf(&principal
, "%s$@%s",
901 machine
, realm
) < 0) {
904 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY
);
906 DEBUG(3,("cli_session_setup_spnego: guessed "
907 "server principal=%s\n",
908 principal
? principal
: "<null>"));
915 rc
= cli_session_setup_kerberos(cli
, principal
, domain
);
916 if (ADS_ERR_OK(rc
) || !cli
->fallback_after_kerberos
) {
917 SAFE_FREE(principal
);
924 SAFE_FREE(principal
);
928 return ADS_ERROR_NT(cli_session_setup_ntlmssp(cli
, user
, pass
, domain
));
931 /****************************************************************************
932 Send a session setup. The username and workgroup is in UNIX character
933 format and must be converted to DOS codepage format before sending. If the
934 password is in plaintext, the same should be done.
935 ****************************************************************************/
937 NTSTATUS
cli_session_setup(struct cli_state
*cli
,
939 const char *pass
, int passlen
,
940 const char *ntpass
, int ntpasslen
,
941 const char *workgroup
)
947 fstrcpy(user2
, user
);
956 /* allow for workgroups as part of the username */
957 if ((p
=strchr_m(user2
,'\\')) || (p
=strchr_m(user2
,'/')) ||
958 (p
=strchr_m(user2
,*lp_winbind_separator()))) {
964 if (cli
->protocol
< PROTOCOL_LANMAN1
) {
968 /* now work out what sort of session setup we are going to
969 do. I have split this into separate functions to make the
970 flow a bit easier to understand (tridge) */
972 /* if its an older server then we have to use the older request format */
974 if (cli
->protocol
< PROTOCOL_NT1
) {
975 if (!lp_client_lanman_auth() && passlen
!= 24 && (*pass
)) {
976 DEBUG(1, ("Server requested LM password but 'client lanman auth'"
978 return NT_STATUS_ACCESS_DENIED
;
981 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) == 0 &&
982 !lp_client_plaintext_auth() && (*pass
)) {
983 DEBUG(1, ("Server requested plaintext password but "
984 "'client plaintext auth' is disabled\n"));
985 return NT_STATUS_ACCESS_DENIED
;
988 return cli_session_setup_lanman2(cli
, user
, pass
, passlen
,
992 /* if no user is supplied then we have to do an anonymous connection.
993 passwords are ignored */
996 return cli_session_setup_guest(cli
);
998 /* if the server is share level then send a plaintext null
999 password at this point. The password is sent in the tree
1002 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_USER_LEVEL
) == 0)
1003 return cli_session_setup_plaintext(cli
, user
, "", workgroup
);
1005 /* if the server doesn't support encryption then we have to use
1006 plaintext. The second password is ignored */
1008 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) == 0) {
1009 if (!lp_client_plaintext_auth() && (*pass
)) {
1010 DEBUG(1, ("Server requested plaintext password but "
1011 "'client plaintext auth' is disabled\n"));
1012 return NT_STATUS_ACCESS_DENIED
;
1014 return cli_session_setup_plaintext(cli
, user
, pass
, workgroup
);
1017 /* if the server supports extended security then use SPNEGO */
1019 if (cli
->capabilities
& CAP_EXTENDED_SECURITY
) {
1020 ADS_STATUS status
= cli_session_setup_spnego(cli
, user
, pass
, workgroup
);
1021 if (!ADS_ERR_OK(status
)) {
1022 DEBUG(3, ("SPNEGO login failed: %s\n", ads_errstr(status
)));
1023 return ads_ntstatus(status
);
1028 /* otherwise do a NT1 style session setup */
1029 status
= cli_session_setup_nt1(cli
, user
, pass
, passlen
,
1030 ntpass
, ntpasslen
, workgroup
);
1031 if (!NT_STATUS_IS_OK(status
)) {
1032 DEBUG(3,("cli_session_setup: NT1 session setup "
1033 "failed: %s\n", nt_errstr(status
)));
1038 if (strstr(cli
->server_type
, "Samba")) {
1039 cli
->is_samba
= True
;
1042 return NT_STATUS_OK
;
1045 /****************************************************************************
1047 *****************************************************************************/
1049 bool cli_ulogoff(struct cli_state
*cli
)
1051 memset(cli
->outbuf
,'\0',smb_size
);
1052 cli_set_message(cli
->outbuf
,2,0,True
);
1053 SCVAL(cli
->outbuf
,smb_com
,SMBulogoffX
);
1054 cli_setup_packet(cli
);
1055 SSVAL(cli
->outbuf
,smb_vwv0
,0xFF);
1056 SSVAL(cli
->outbuf
,smb_vwv2
,0); /* no additional info */
1059 if (!cli_receive_smb(cli
))
1062 if (cli_is_error(cli
)) {
1070 /****************************************************************************
1072 ****************************************************************************/
1074 bool cli_send_tconX(struct cli_state
*cli
,
1075 const char *share
, const char *dev
, const char *pass
, int passlen
)
1077 fstring fullshare
, pword
;
1079 memset(cli
->outbuf
,'\0',smb_size
);
1080 memset(cli
->inbuf
,'\0',smb_size
);
1082 fstrcpy(cli
->share
, share
);
1084 /* in user level security don't send a password now */
1085 if (cli
->sec_mode
& NEGOTIATE_SECURITY_USER_LEVEL
) {
1089 DEBUG(1, ("Server not using user level security and no password supplied.\n"));
1093 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) &&
1094 *pass
&& passlen
!= 24) {
1095 if (!lp_client_lanman_auth()) {
1096 DEBUG(1, ("Server requested LANMAN password "
1097 "(share-level security) but "
1098 "'client lanman auth' is disabled\n"));
1103 * Non-encrypted passwords - convert to DOS codepage before encryption.
1106 SMBencrypt(pass
,cli
->secblob
.data
,(uchar
*)pword
);
1108 if((cli
->sec_mode
& (NEGOTIATE_SECURITY_USER_LEVEL
|NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
)) == 0) {
1109 if (!lp_client_plaintext_auth() && (*pass
)) {
1110 DEBUG(1, ("Server requested plaintext "
1111 "password but 'client plaintext "
1112 "auth' is disabled\n"));
1117 * Non-encrypted passwords - convert to DOS codepage before using.
1119 passlen
= clistr_push(cli
, pword
, pass
, sizeof(pword
), STR_TERMINATE
);
1123 memcpy(pword
, pass
, passlen
);
1128 slprintf(fullshare
, sizeof(fullshare
)-1,
1129 "\\\\%s\\%s", cli
->desthost
, share
);
1131 cli_set_message(cli
->outbuf
,4, 0, True
);
1132 SCVAL(cli
->outbuf
,smb_com
,SMBtconX
);
1133 cli_setup_packet(cli
);
1135 SSVAL(cli
->outbuf
,smb_vwv0
,0xFF);
1136 SSVAL(cli
->outbuf
,smb_vwv2
,TCONX_FLAG_EXTENDED_RESPONSE
);
1137 SSVAL(cli
->outbuf
,smb_vwv3
,passlen
);
1139 p
= smb_buf(cli
->outbuf
);
1141 memcpy(p
,pword
,passlen
);
1144 p
+= clistr_push(cli
, p
, fullshare
, -1, STR_TERMINATE
|STR_UPPER
);
1145 p
+= clistr_push(cli
, p
, dev
, -1, STR_TERMINATE
|STR_UPPER
| STR_ASCII
);
1147 cli_setup_bcc(cli
, p
);
1150 if (!cli_receive_smb(cli
))
1153 if (cli_is_error(cli
))
1156 clistr_pull(cli
, cli
->dev
, smb_buf(cli
->inbuf
), sizeof(fstring
), -1, STR_TERMINATE
|STR_ASCII
);
1158 if (cli
->protocol
>= PROTOCOL_NT1
&&
1159 smb_buflen(cli
->inbuf
) == 3) {
1160 /* almost certainly win95 - enable bug fixes */
1164 /* Make sure that we have the optional support 16-bit field. WCT > 2 */
1165 /* Avoids issues when connecting to Win9x boxes sharing files */
1167 cli
->dfsroot
= False
;
1168 if ( (CVAL(cli
->inbuf
, smb_wct
))>2 && cli
->protocol
>= PROTOCOL_LANMAN2
)
1169 cli
->dfsroot
= (SVAL( cli
->inbuf
, smb_vwv2
) & SMB_SHARE_IN_DFS
) ? True
: False
;
1171 cli
->cnum
= SVAL(cli
->inbuf
,smb_tid
);
1175 /****************************************************************************
1176 Send a tree disconnect.
1177 ****************************************************************************/
1179 bool cli_tdis(struct cli_state
*cli
)
1181 memset(cli
->outbuf
,'\0',smb_size
);
1182 cli_set_message(cli
->outbuf
,0,0,True
);
1183 SCVAL(cli
->outbuf
,smb_com
,SMBtdis
);
1184 SSVAL(cli
->outbuf
,smb_tid
,cli
->cnum
);
1185 cli_setup_packet(cli
);
1188 if (!cli_receive_smb(cli
))
1191 if (cli_is_error(cli
)) {
1199 /****************************************************************************
1200 Send a negprot command.
1201 ****************************************************************************/
1203 void cli_negprot_send(struct cli_state
*cli
)
1208 if (cli
->protocol
< PROTOCOL_NT1
)
1209 cli
->use_spnego
= False
;
1211 memset(cli
->outbuf
,'\0',smb_size
);
1213 /* setup the protocol strings */
1214 cli_set_message(cli
->outbuf
,0,0,True
);
1216 p
= smb_buf(cli
->outbuf
);
1218 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1221 p
+= clistr_push(cli
, p
, prots
[numprots
].name
, -1, STR_TERMINATE
);
1224 SCVAL(cli
->outbuf
,smb_com
,SMBnegprot
);
1225 cli_setup_bcc(cli
, p
);
1226 cli_setup_packet(cli
);
1228 SCVAL(smb_buf(cli
->outbuf
),0,2);
1233 /****************************************************************************
1234 Send a negprot command.
1235 ****************************************************************************/
1237 bool cli_negprot(struct cli_state
*cli
)
1243 if (cli
->protocol
< PROTOCOL_NT1
)
1244 cli
->use_spnego
= False
;
1246 memset(cli
->outbuf
,'\0',smb_size
);
1248 /* setup the protocol strings */
1249 for (plength
=0,numprots
=0;
1250 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1252 plength
+= strlen(prots
[numprots
].name
)+2;
1254 cli_set_message(cli
->outbuf
,0,plength
,True
);
1256 p
= smb_buf(cli
->outbuf
);
1258 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1261 p
+= clistr_push(cli
, p
, prots
[numprots
].name
, -1, STR_TERMINATE
);
1264 SCVAL(cli
->outbuf
,smb_com
,SMBnegprot
);
1265 cli_setup_packet(cli
);
1267 SCVAL(smb_buf(cli
->outbuf
),0,2);
1270 if (!cli_receive_smb(cli
))
1273 show_msg(cli
->inbuf
);
1275 if (cli_is_error(cli
) ||
1276 ((int)SVAL(cli
->inbuf
,smb_vwv0
) >= numprots
)) {
1280 cli
->protocol
= prots
[SVAL(cli
->inbuf
,smb_vwv0
)].prot
;
1282 if ((cli
->protocol
< PROTOCOL_NT1
) && cli
->sign_info
.mandatory_signing
) {
1283 DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
1287 if (cli
->protocol
>= PROTOCOL_NT1
) {
1290 cli
->sec_mode
= CVAL(cli
->inbuf
,smb_vwv1
);
1291 cli
->max_mux
= SVAL(cli
->inbuf
, smb_vwv1
+1);
1292 cli
->max_xmit
= IVAL(cli
->inbuf
,smb_vwv3
+1);
1293 cli
->sesskey
= IVAL(cli
->inbuf
,smb_vwv7
+1);
1294 cli
->serverzone
= SVALS(cli
->inbuf
,smb_vwv15
+1);
1295 cli
->serverzone
*= 60;
1296 /* this time arrives in real GMT */
1297 ts
= interpret_long_date(cli
->inbuf
+smb_vwv11
+1);
1298 cli
->servertime
= ts
.tv_sec
;
1299 cli
->secblob
= data_blob(smb_buf(cli
->inbuf
),smb_buflen(cli
->inbuf
));
1300 cli
->capabilities
= IVAL(cli
->inbuf
,smb_vwv9
+1);
1301 if (cli
->capabilities
& CAP_RAW_MODE
) {
1302 cli
->readbraw_supported
= True
;
1303 cli
->writebraw_supported
= True
;
1305 /* work out if they sent us a workgroup */
1306 if (!(cli
->capabilities
& CAP_EXTENDED_SECURITY
) &&
1307 smb_buflen(cli
->inbuf
) > 8) {
1308 clistr_pull(cli
, cli
->server_domain
,
1309 smb_buf(cli
->inbuf
)+8, sizeof(cli
->server_domain
),
1310 smb_buflen(cli
->inbuf
)-8, STR_UNICODE
|STR_NOALIGN
);
1314 * As signing is slow we only turn it on if either the client or
1315 * the server require it. JRA.
1318 if (cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_REQUIRED
) {
1319 /* Fail if server says signing is mandatory and we don't want to support it. */
1320 if (!cli
->sign_info
.allow_smb_signing
) {
1321 DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
1324 cli
->sign_info
.negotiated_smb_signing
= True
;
1325 cli
->sign_info
.mandatory_signing
= True
;
1326 } else if (cli
->sign_info
.mandatory_signing
&& cli
->sign_info
.allow_smb_signing
) {
1327 /* Fail if client says signing is mandatory and the server doesn't support it. */
1328 if (!(cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_ENABLED
)) {
1329 DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
1332 cli
->sign_info
.negotiated_smb_signing
= True
;
1333 cli
->sign_info
.mandatory_signing
= True
;
1334 } else if (cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_ENABLED
) {
1335 cli
->sign_info
.negotiated_smb_signing
= True
;
1338 if (cli
->capabilities
& (CAP_LARGE_READX
|CAP_LARGE_WRITEX
)) {
1339 SAFE_FREE(cli
->outbuf
);
1340 SAFE_FREE(cli
->inbuf
);
1341 cli
->outbuf
= (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE
+SAFETY_MARGIN
);
1342 cli
->inbuf
= (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE
+SAFETY_MARGIN
);
1343 cli
->bufsize
= CLI_SAMBA_MAX_LARGE_READX_SIZE
;
1346 } else if (cli
->protocol
>= PROTOCOL_LANMAN1
) {
1347 cli
->use_spnego
= False
;
1348 cli
->sec_mode
= SVAL(cli
->inbuf
,smb_vwv1
);
1349 cli
->max_xmit
= SVAL(cli
->inbuf
,smb_vwv2
);
1350 cli
->max_mux
= SVAL(cli
->inbuf
, smb_vwv3
);
1351 cli
->sesskey
= IVAL(cli
->inbuf
,smb_vwv6
);
1352 cli
->serverzone
= SVALS(cli
->inbuf
,smb_vwv10
);
1353 cli
->serverzone
*= 60;
1354 /* this time is converted to GMT by make_unix_date */
1355 cli
->servertime
= cli_make_unix_date(cli
,cli
->inbuf
+smb_vwv8
);
1356 cli
->readbraw_supported
= ((SVAL(cli
->inbuf
,smb_vwv5
) & 0x1) != 0);
1357 cli
->writebraw_supported
= ((SVAL(cli
->inbuf
,smb_vwv5
) & 0x2) != 0);
1358 cli
->secblob
= data_blob(smb_buf(cli
->inbuf
),smb_buflen(cli
->inbuf
));
1360 /* the old core protocol */
1361 cli
->use_spnego
= False
;
1363 cli
->serverzone
= get_time_zone(time(NULL
));
1366 cli
->max_xmit
= MIN(cli
->max_xmit
, CLI_BUFFER_SIZE
);
1368 /* a way to force ascii SMB */
1369 if (getenv("CLI_FORCE_ASCII"))
1370 cli
->capabilities
&= ~CAP_UNICODE
;
1375 /****************************************************************************
1376 Send a session request. See rfc1002.txt 4.3 and 4.3.2.
1377 ****************************************************************************/
1379 bool cli_session_request(struct cli_state
*cli
,
1380 struct nmb_name
*calling
, struct nmb_name
*called
)
1385 memcpy(&(cli
->calling
), calling
, sizeof(*calling
));
1386 memcpy(&(cli
->called
), called
, sizeof(*called
));
1388 /* put in the destination name */
1389 p
= cli
->outbuf
+len
;
1390 name_mangle(cli
->called
.name
, p
, cli
->called
.name_type
);
1394 p
= cli
->outbuf
+len
;
1395 name_mangle(cli
->calling
.name
, p
, cli
->calling
.name_type
);
1398 /* 445 doesn't have session request */
1399 if (cli
->port
== 445)
1402 /* send a session request (RFC 1002) */
1403 /* setup the packet length
1404 * Remove four bytes from the length count, since the length
1405 * field in the NBT Session Service header counts the number
1406 * of bytes which follow. The cli_send_smb() function knows
1407 * about this and accounts for those four bytes.
1411 _smb_setlen(cli
->outbuf
,len
);
1412 SCVAL(cli
->outbuf
,0,0x81);
1415 DEBUG(5,("Sent session request\n"));
1417 if (!cli_receive_smb(cli
))
1420 if (CVAL(cli
->inbuf
,0) == 0x84) {
1421 /* C. Hoch 9/14/95 Start */
1422 /* For information, here is the response structure.
1423 * We do the byte-twiddling to for portability.
1424 struct RetargetResponse{
1426 unsigned char flags;
1432 uint16_t port
= (CVAL(cli
->inbuf
,8)<<8)+CVAL(cli
->inbuf
,9);
1433 struct in_addr dest_ip
;
1435 /* SESSION RETARGET */
1436 putip((char *)&dest_ip
,cli
->inbuf
+4);
1437 in_addr_to_sockaddr_storage(&cli
->dest_ss
, dest_ip
);
1439 cli
->fd
= open_socket_out(SOCK_STREAM
,
1442 LONG_CONNECT_TIMEOUT
);
1446 DEBUG(3,("Retargeted\n"));
1448 set_socket_options(cli
->fd
, lp_socket_options());
1455 DEBUG(0,("Retarget recursion - failing\n"));
1459 ret
= cli_session_request(cli
, calling
, called
);
1463 } /* C. Hoch 9/14/95 End */
1465 if (CVAL(cli
->inbuf
,0) != 0x82) {
1466 /* This is the wrong place to put the error... JRA. */
1467 cli
->rap_error
= CVAL(cli
->inbuf
,4);
1473 /****************************************************************************
1474 Open the client sockets.
1475 ****************************************************************************/
1477 NTSTATUS
cli_connect(struct cli_state
*cli
,
1479 struct sockaddr_storage
*dest_ss
)
1482 int name_type
= 0x20;
1483 TALLOC_CTX
*frame
= talloc_stackframe();
1484 unsigned int num_addrs
= 0;
1486 struct sockaddr_storage
*ss_arr
= NULL
;
1489 /* reasonable default hostname */
1491 host
= star_smbserver_name
;
1494 fstrcpy(cli
->desthost
, host
);
1496 /* allow hostnames of the form NAME#xx and do a netbios lookup */
1497 if ((p
= strchr(cli
->desthost
, '#'))) {
1498 name_type
= strtol(p
+1, NULL
, 16);
1502 if (!dest_ss
|| is_zero_addr(dest_ss
)) {
1503 NTSTATUS status
=resolve_name_list(frame
,
1508 if (!NT_STATUS_IS_OK(status
)) {
1510 return NT_STATUS_BAD_NETWORK_NAME
;
1514 ss_arr
= TALLOC_P(frame
, struct sockaddr_storage
);
1517 return NT_STATUS_NO_MEMORY
;
1522 for (i
= 0; i
< num_addrs
; i
++) {
1523 cli
->dest_ss
= ss_arr
[i
];
1524 if (getenv("LIBSMB_PROG")) {
1525 cli
->fd
= sock_exec(getenv("LIBSMB_PROG"));
1527 /* try 445 first, then 139 */
1528 uint16_t port
= cli
->port
?cli
->port
:445;
1529 cli
->fd
= open_socket_out(SOCK_STREAM
, &cli
->dest_ss
,
1530 port
, cli
->timeout
);
1531 if (cli
->fd
== -1 && cli
->port
== 0) {
1533 cli
->fd
= open_socket_out(SOCK_STREAM
, &cli
->dest_ss
,
1534 port
, cli
->timeout
);
1536 if (cli
->fd
!= -1) {
1540 if (cli
->fd
== -1) {
1541 char addr
[INET6_ADDRSTRLEN
];
1542 print_sockaddr(addr
, sizeof(addr
), &ss_arr
[i
]);
1543 DEBUG(2,("Error connecting to %s (%s)\n",
1544 dest_ss
?addr
:host
,strerror(errno
)));
1546 /* Exit from loop on first connection. */
1551 if (cli
->fd
== -1) {
1553 return map_nt_error_from_unix(errno
);
1557 *dest_ss
= cli
->dest_ss
;
1560 set_socket_options(cli
->fd
, lp_socket_options());
1563 return NT_STATUS_OK
;
1567 establishes a connection to after the negprot.
1568 @param output_cli A fully initialised cli structure, non-null only on success
1569 @param dest_host The netbios name of the remote host
1570 @param dest_ss (optional) The the destination IP, NULL for name based lookup
1571 @param port (optional) The destination port (0 for default)
1572 @param retry bool. Did this connection fail with a retryable error ?
1575 NTSTATUS
cli_start_connection(struct cli_state
**output_cli
,
1576 const char *my_name
,
1577 const char *dest_host
,
1578 struct sockaddr_storage
*dest_ss
, int port
,
1579 int signing_state
, int flags
,
1583 struct nmb_name calling
;
1584 struct nmb_name called
;
1585 struct cli_state
*cli
;
1586 struct sockaddr_storage ss
;
1592 my_name
= global_myname();
1594 if (!(cli
= cli_initialise())) {
1595 return NT_STATUS_NO_MEMORY
;
1598 make_nmb_name(&calling
, my_name
, 0x0);
1599 make_nmb_name(&called
, dest_host
, 0x20);
1601 if (cli_set_port(cli
, port
) != port
) {
1603 return NT_STATUS_UNSUCCESSFUL
;
1606 cli_set_timeout(cli
, 10000); /* 10 seconds. */
1616 DEBUG(3,("Connecting to host=%s\n", dest_host
));
1618 nt_status
= cli_connect(cli
, dest_host
, &ss
);
1619 if (!NT_STATUS_IS_OK(nt_status
)) {
1620 char addr
[INET6_ADDRSTRLEN
];
1621 print_sockaddr(addr
, sizeof(addr
), &ss
);
1622 DEBUG(1,("cli_start_connection: failed to connect to %s (%s). Error %s\n",
1623 nmb_namestr(&called
), addr
, nt_errstr(nt_status
) ));
1631 if (!cli_session_request(cli
, &calling
, &called
)) {
1633 DEBUG(1,("session request to %s failed (%s)\n",
1634 called
.name
, cli_errstr(cli
)));
1635 if ((p
=strchr(called
.name
, '.')) && !is_ipaddress(called
.name
)) {
1639 if (strcmp(called
.name
, star_smbserver_name
)) {
1640 make_nmb_name(&called
, star_smbserver_name
, 0x20);
1643 return NT_STATUS_BAD_NETWORK_NAME
;
1646 cli_setup_signing_state(cli
, signing_state
);
1648 if (flags
& CLI_FULL_CONNECTION_DONT_SPNEGO
)
1649 cli
->use_spnego
= False
;
1650 else if (flags
& CLI_FULL_CONNECTION_USE_KERBEROS
)
1651 cli
->use_kerberos
= True
;
1653 if ((flags
& CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS
) &&
1654 cli
->use_kerberos
) {
1655 cli
->fallback_after_kerberos
= true;
1658 if (!cli_negprot(cli
)) {
1659 DEBUG(1,("failed negprot\n"));
1660 nt_status
= cli_nt_error(cli
);
1661 if (NT_STATUS_IS_OK(nt_status
)) {
1662 nt_status
= NT_STATUS_UNSUCCESSFUL
;
1669 return NT_STATUS_OK
;
1674 establishes a connection right up to doing tconX, password specified.
1675 @param output_cli A fully initialised cli structure, non-null only on success
1676 @param dest_host The netbios name of the remote host
1677 @param dest_ip (optional) The the destination IP, NULL for name based lookup
1678 @param port (optional) The destination port (0 for default)
1679 @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
1680 @param service_type The 'type' of serivice.
1681 @param user Username, unix string
1682 @param domain User's domain
1683 @param password User's password, unencrypted unix string.
1684 @param retry bool. Did this connection fail with a retryable error ?
1687 NTSTATUS
cli_full_connection(struct cli_state
**output_cli
,
1688 const char *my_name
,
1689 const char *dest_host
,
1690 struct sockaddr_storage
*dest_ss
, int port
,
1691 const char *service
, const char *service_type
,
1692 const char *user
, const char *domain
,
1693 const char *password
, int flags
,
1698 struct cli_state
*cli
= NULL
;
1699 int pw_len
= password
? strlen(password
)+1 : 0;
1703 if (password
== NULL
) {
1707 nt_status
= cli_start_connection(&cli
, my_name
, dest_host
,
1708 dest_ss
, port
, signing_state
,
1711 if (!NT_STATUS_IS_OK(nt_status
)) {
1715 nt_status
= cli_session_setup(cli
, user
, password
, pw_len
, password
,
1717 if (!NT_STATUS_IS_OK(nt_status
)) {
1719 if (!(flags
& CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK
)) {
1720 DEBUG(1,("failed session setup with %s\n",
1721 nt_errstr(nt_status
)));
1726 nt_status
= cli_session_setup(cli
, "", "", 0, "", 0, domain
);
1727 if (!NT_STATUS_IS_OK(nt_status
)) {
1728 DEBUG(1,("anonymous failed session setup with %s\n",
1729 nt_errstr(nt_status
)));
1736 if (!cli_send_tconX(cli
, service
, service_type
, password
, pw_len
)) {
1737 nt_status
= cli_nt_error(cli
);
1738 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status
)));
1740 if (NT_STATUS_IS_OK(nt_status
)) {
1741 nt_status
= NT_STATUS_UNSUCCESSFUL
;
1747 cli_init_creds(cli
, user
, domain
, password
);
1750 return NT_STATUS_OK
;
1753 /****************************************************************************
1754 Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
1755 ****************************************************************************/
1757 bool attempt_netbios_session_request(struct cli_state
**ppcli
, const char *srchost
, const char *desthost
,
1758 struct sockaddr_storage
*pdest_ss
)
1760 struct nmb_name calling
, called
;
1762 make_nmb_name(&calling
, srchost
, 0x0);
1765 * If the called name is an IP address
1766 * then use *SMBSERVER immediately.
1769 if(is_ipaddress(desthost
)) {
1770 make_nmb_name(&called
, star_smbserver_name
, 0x20);
1772 make_nmb_name(&called
, desthost
, 0x20);
1775 if (!cli_session_request(*ppcli
, &calling
, &called
)) {
1777 struct nmb_name smbservername
;
1779 make_nmb_name(&smbservername
, star_smbserver_name
, 0x20);
1782 * If the name wasn't *SMBSERVER then
1783 * try with *SMBSERVER if the first name fails.
1786 if (nmb_name_equal(&called
, &smbservername
)) {
1789 * The name used was *SMBSERVER, don't bother with another name.
1792 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
1793 with error %s.\n", desthost
, cli_errstr(*ppcli
) ));
1798 cli_shutdown(*ppcli
);
1800 *ppcli
= cli_initialise();
1802 /* Out of memory... */
1806 status
= cli_connect(*ppcli
, desthost
, pdest_ss
);
1807 if (!NT_STATUS_IS_OK(status
) ||
1808 !cli_session_request(*ppcli
, &calling
, &smbservername
)) {
1809 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
1810 name *SMBSERVER with error %s\n", desthost
, cli_errstr(*ppcli
) ));
1818 /****************************************************************************
1819 Send an old style tcon.
1820 ****************************************************************************/
1821 NTSTATUS
cli_raw_tcon(struct cli_state
*cli
,
1822 const char *service
, const char *pass
, const char *dev
,
1823 uint16
*max_xmit
, uint16
*tid
)
1827 if (!lp_client_plaintext_auth() && (*pass
)) {
1828 DEBUG(1, ("Server requested plaintext password but 'client "
1829 "plaintext auth' is disabled\n"));
1830 return NT_STATUS_ACCESS_DENIED
;
1833 memset(cli
->outbuf
,'\0',smb_size
);
1834 memset(cli
->inbuf
,'\0',smb_size
);
1836 cli_set_message(cli
->outbuf
, 0, 0, True
);
1837 SCVAL(cli
->outbuf
,smb_com
,SMBtcon
);
1838 cli_setup_packet(cli
);
1840 p
= smb_buf(cli
->outbuf
);
1841 *p
++ = 4; p
+= clistr_push(cli
, p
, service
, -1, STR_TERMINATE
| STR_NOALIGN
);
1842 *p
++ = 4; p
+= clistr_push(cli
, p
, pass
, -1, STR_TERMINATE
| STR_NOALIGN
);
1843 *p
++ = 4; p
+= clistr_push(cli
, p
, dev
, -1, STR_TERMINATE
| STR_NOALIGN
);
1845 cli_setup_bcc(cli
, p
);
1848 if (!cli_receive_smb(cli
)) {
1849 return NT_STATUS_UNEXPECTED_NETWORK_ERROR
;
1852 if (cli_is_error(cli
)) {
1853 return cli_nt_error(cli
);
1856 *max_xmit
= SVAL(cli
->inbuf
, smb_vwv0
);
1857 *tid
= SVAL(cli
->inbuf
, smb_vwv1
);
1859 return NT_STATUS_OK
;
1862 /* Return a cli_state pointing at the IPC$ share for the given server */
1864 struct cli_state
*get_ipc_connect(char *server
,
1865 struct sockaddr_storage
*server_ss
,
1866 const struct user_auth_info
*user_info
)
1868 struct cli_state
*cli
;
1871 nt_status
= cli_full_connection(&cli
, NULL
, server
, server_ss
, 0, "IPC$", "IPC",
1872 user_info
->username
? user_info
->username
: "",
1874 user_info
->password
? user_info
->password
: "",
1875 CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK
, Undefined
, NULL
);
1877 if (NT_STATUS_IS_OK(nt_status
)) {
1879 } else if (is_ipaddress(server
)) {
1880 /* windows 9* needs a correct NMB name for connections */
1881 fstring remote_name
;
1883 if (name_status_find("*", 0, 0, server_ss
, remote_name
)) {
1884 cli
= get_ipc_connect(remote_name
, server_ss
, user_info
);
1893 * Given the IP address of a master browser on the network, return its
1894 * workgroup and connect to it.
1896 * This function is provided to allow additional processing beyond what
1897 * get_ipc_connect_master_ip_bcast() does, e.g. to retrieve the list of master
1898 * browsers and obtain each master browsers' list of domains (in case the
1899 * first master browser is recently on the network and has not yet
1900 * synchronized with other master browsers and therefore does not yet have the
1901 * entire network browse list)
1904 struct cli_state
*get_ipc_connect_master_ip(TALLOC_CTX
*ctx
,
1905 struct ip_service
*mb_ip
,
1906 const struct user_auth_info
*user_info
,
1907 char **pp_workgroup_out
)
1909 char addr
[INET6_ADDRSTRLEN
];
1911 struct cli_state
*cli
;
1912 struct sockaddr_storage server_ss
;
1914 *pp_workgroup_out
= NULL
;
1916 print_sockaddr(addr
, sizeof(addr
), &mb_ip
->ss
);
1917 DEBUG(99, ("Looking up name of master browser %s\n",
1921 * Do a name status query to find out the name of the master browser.
1922 * We use <01><02>__MSBROWSE__<02>#01 if *#00 fails because a domain
1923 * master browser will not respond to a wildcard query (or, at least,
1924 * an NT4 server acting as the domain master browser will not).
1926 * We might be able to use ONLY the query on MSBROWSE, but that's not
1927 * yet been tested with all Windows versions, so until it is, leave
1928 * the original wildcard query as the first choice and fall back to
1929 * MSBROWSE if the wildcard query fails.
1931 if (!name_status_find("*", 0, 0x1d, &mb_ip
->ss
, name
) &&
1932 !name_status_find(MSBROWSE
, 1, 0x1d, &mb_ip
->ss
, name
)) {
1934 DEBUG(99, ("Could not retrieve name status for %s\n",
1939 if (!find_master_ip(name
, &server_ss
)) {
1940 DEBUG(99, ("Could not find master ip for %s\n", name
));
1944 *pp_workgroup_out
= talloc_strdup(ctx
, name
);
1946 DEBUG(4, ("found master browser %s, %s\n", name
, addr
));
1948 print_sockaddr(addr
, sizeof(addr
), &server_ss
);
1949 cli
= get_ipc_connect(addr
, &server_ss
, user_info
);
1955 * Return the IP address and workgroup of a master browser on the network, and
1959 struct cli_state
*get_ipc_connect_master_ip_bcast(TALLOC_CTX
*ctx
,
1960 const struct user_auth_info
*user_info
,
1961 char **pp_workgroup_out
)
1963 struct ip_service
*ip_list
;
1964 struct cli_state
*cli
;
1967 *pp_workgroup_out
= NULL
;
1969 DEBUG(99, ("Do broadcast lookup for workgroups on local network\n"));
1971 /* Go looking for workgroups by broadcasting on the local network */
1973 if (!NT_STATUS_IS_OK(name_resolve_bcast(MSBROWSE
, 1, &ip_list
,
1975 DEBUG(99, ("No master browsers responded\n"));
1979 for (i
= 0; i
< count
; i
++) {
1980 char addr
[INET6_ADDRSTRLEN
];
1981 print_sockaddr(addr
, sizeof(addr
), &ip_list
[i
].ss
);
1982 DEBUG(99, ("Found master browser %s\n", addr
));
1984 cli
= get_ipc_connect_master_ip(ctx
, &ip_list
[i
],
1985 user_info
, pp_workgroup_out
);