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
;
798 const char *p
= NULL
;
799 char *account
= NULL
;
801 DEBUG(3,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli
->secblob
.length
));
803 /* the server might not even do spnego */
804 if (cli
->secblob
.length
<= 16) {
805 DEBUG(3,("server didn't supply a full spnego negprot\n"));
810 file_save("negprot.dat", cli
->secblob
.data
, cli
->secblob
.length
);
813 /* there is 16 bytes of GUID before the real spnego packet starts */
814 blob
= data_blob(cli
->secblob
.data
+16, cli
->secblob
.length
-16);
816 /* the server sent us the first part of the SPNEGO exchange in the negprot
818 if (!spnego_parse_negTokenInit(blob
, OIDs
, &principal
)) {
819 data_blob_free(&blob
);
820 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER
);
822 data_blob_free(&blob
);
824 /* make sure the server understands kerberos */
825 for (i
=0;OIDs
[i
];i
++) {
826 DEBUG(3,("got OID=%s\n", OIDs
[i
]));
827 if (strcmp(OIDs
[i
], OID_KERBEROS5_OLD
) == 0 ||
828 strcmp(OIDs
[i
], OID_KERBEROS5
) == 0) {
829 got_kerberos_mechanism
= True
;
834 DEBUG(3,("got principal=%s\n", principal
? principal
: "<null>"));
836 if (got_kerberos_mechanism
&& (principal
== NULL
)) {
838 * It is WRONG to depend on the principal sent in the negprot
839 * reply, but right now we do it. So for safety (don't
840 * segfault later) disable Kerberos when no principal was
843 DEBUG(1, ("Kerberos mech was offered, but no principal was "
844 "sent, disabling Kerberos\n"));
845 cli
->use_kerberos
= False
;
848 fstrcpy(cli
->user_name
, user
);
851 /* If password is set we reauthenticate to kerberos server
852 * and do not store results */
854 if (got_kerberos_mechanism
&& cli
->use_kerberos
) {
860 use_in_memory_ccache();
861 ret
= kerberos_kinit_password(user
, pass
, 0 /* no time correction for now */, NULL
);
864 SAFE_FREE(principal
);
865 DEBUG(0, ("Kinit failed: %s\n", error_message(ret
)));
866 if (cli
->fallback_after_kerberos
)
868 return ADS_ERROR_KRB5(ret
);
872 /* If we get a bad principal, try to guess it if
873 we have a valid host NetBIOS name.
875 if (strequal(principal
, ADS_IGNORE_PRINCIPAL
)) {
876 SAFE_FREE(principal
);
879 if (principal
== NULL
&&
880 !is_ipaddress(cli
->desthost
) &&
881 !strequal(star_smbserver_name
,
884 char *machine
= NULL
;
886 DEBUG(3,("cli_session_setup_spnego: got a "
887 "bad server principal, trying to guess ...\n"));
889 host
= strchr_m(cli
->desthost
, '.');
891 machine
= SMB_STRNDUP(cli
->desthost
,
892 host
- cli
->desthost
);
894 machine
= SMB_STRDUP(cli
->desthost
);
896 if (machine
== NULL
) {
897 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY
);
900 realm
= kerberos_get_default_realm_from_ccache();
901 if (realm
&& *realm
) {
902 if (asprintf(&principal
, "%s$@%s",
903 machine
, realm
) < 0) {
906 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY
);
908 DEBUG(3,("cli_session_setup_spnego: guessed "
909 "server principal=%s\n",
910 principal
? principal
: "<null>"));
917 rc
= cli_session_setup_kerberos(cli
, principal
, domain
);
918 if (ADS_ERR_OK(rc
) || !cli
->fallback_after_kerberos
) {
919 SAFE_FREE(principal
);
926 SAFE_FREE(principal
);
930 account
= talloc_strdup(talloc_tos(), user
);
932 return ADS_ERROR_NT(NT_STATUS_NO_MEMORY
);
935 /* when falling back to ntlmssp while authenticating with a machine
936 * account strip off the realm - gd */
938 if ((p
= strchr_m(user
, '@')) != NULL
) {
939 account
[PTR_DIFF(p
,user
)] = '\0';
942 return ADS_ERROR_NT(cli_session_setup_ntlmssp(cli
, account
, pass
, domain
));
945 /****************************************************************************
946 Send a session setup. The username and workgroup is in UNIX character
947 format and must be converted to DOS codepage format before sending. If the
948 password is in plaintext, the same should be done.
949 ****************************************************************************/
951 NTSTATUS
cli_session_setup(struct cli_state
*cli
,
953 const char *pass
, int passlen
,
954 const char *ntpass
, int ntpasslen
,
955 const char *workgroup
)
961 fstrcpy(user2
, user
);
970 /* allow for workgroups as part of the username */
971 if ((p
=strchr_m(user2
,'\\')) || (p
=strchr_m(user2
,'/')) ||
972 (p
=strchr_m(user2
,*lp_winbind_separator()))) {
978 if (cli
->protocol
< PROTOCOL_LANMAN1
) {
982 /* now work out what sort of session setup we are going to
983 do. I have split this into separate functions to make the
984 flow a bit easier to understand (tridge) */
986 /* if its an older server then we have to use the older request format */
988 if (cli
->protocol
< PROTOCOL_NT1
) {
989 if (!lp_client_lanman_auth() && passlen
!= 24 && (*pass
)) {
990 DEBUG(1, ("Server requested LM password but 'client lanman auth'"
992 return NT_STATUS_ACCESS_DENIED
;
995 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) == 0 &&
996 !lp_client_plaintext_auth() && (*pass
)) {
997 DEBUG(1, ("Server requested plaintext password but "
998 "'client plaintext auth' is disabled\n"));
999 return NT_STATUS_ACCESS_DENIED
;
1002 return cli_session_setup_lanman2(cli
, user
, pass
, passlen
,
1006 /* if no user is supplied then we have to do an anonymous connection.
1007 passwords are ignored */
1009 if (!user
|| !*user
)
1010 return cli_session_setup_guest(cli
);
1012 /* if the server is share level then send a plaintext null
1013 password at this point. The password is sent in the tree
1016 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_USER_LEVEL
) == 0)
1017 return cli_session_setup_plaintext(cli
, user
, "", workgroup
);
1019 /* if the server doesn't support encryption then we have to use
1020 plaintext. The second password is ignored */
1022 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) == 0) {
1023 if (!lp_client_plaintext_auth() && (*pass
)) {
1024 DEBUG(1, ("Server requested plaintext password but "
1025 "'client plaintext auth' is disabled\n"));
1026 return NT_STATUS_ACCESS_DENIED
;
1028 return cli_session_setup_plaintext(cli
, user
, pass
, workgroup
);
1031 /* if the server supports extended security then use SPNEGO */
1033 if (cli
->capabilities
& CAP_EXTENDED_SECURITY
) {
1034 ADS_STATUS status
= cli_session_setup_spnego(cli
, user
, pass
, workgroup
);
1035 if (!ADS_ERR_OK(status
)) {
1036 DEBUG(3, ("SPNEGO login failed: %s\n", ads_errstr(status
)));
1037 return ads_ntstatus(status
);
1042 /* otherwise do a NT1 style session setup */
1043 status
= cli_session_setup_nt1(cli
, user
, pass
, passlen
,
1044 ntpass
, ntpasslen
, workgroup
);
1045 if (!NT_STATUS_IS_OK(status
)) {
1046 DEBUG(3,("cli_session_setup: NT1 session setup "
1047 "failed: %s\n", nt_errstr(status
)));
1052 if (strstr(cli
->server_type
, "Samba")) {
1053 cli
->is_samba
= True
;
1056 return NT_STATUS_OK
;
1059 /****************************************************************************
1061 *****************************************************************************/
1063 bool cli_ulogoff(struct cli_state
*cli
)
1065 memset(cli
->outbuf
,'\0',smb_size
);
1066 cli_set_message(cli
->outbuf
,2,0,True
);
1067 SCVAL(cli
->outbuf
,smb_com
,SMBulogoffX
);
1068 cli_setup_packet(cli
);
1069 SSVAL(cli
->outbuf
,smb_vwv0
,0xFF);
1070 SSVAL(cli
->outbuf
,smb_vwv2
,0); /* no additional info */
1073 if (!cli_receive_smb(cli
))
1076 if (cli_is_error(cli
)) {
1084 /****************************************************************************
1086 ****************************************************************************/
1088 bool cli_send_tconX(struct cli_state
*cli
,
1089 const char *share
, const char *dev
, const char *pass
, int passlen
)
1091 fstring fullshare
, pword
;
1093 memset(cli
->outbuf
,'\0',smb_size
);
1094 memset(cli
->inbuf
,'\0',smb_size
);
1096 fstrcpy(cli
->share
, share
);
1098 /* in user level security don't send a password now */
1099 if (cli
->sec_mode
& NEGOTIATE_SECURITY_USER_LEVEL
) {
1103 DEBUG(1, ("Server not using user level security and no password supplied.\n"));
1107 if ((cli
->sec_mode
& NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
) &&
1108 *pass
&& passlen
!= 24) {
1109 if (!lp_client_lanman_auth()) {
1110 DEBUG(1, ("Server requested LANMAN password "
1111 "(share-level security) but "
1112 "'client lanman auth' is disabled\n"));
1117 * Non-encrypted passwords - convert to DOS codepage before encryption.
1120 SMBencrypt(pass
,cli
->secblob
.data
,(uchar
*)pword
);
1122 if((cli
->sec_mode
& (NEGOTIATE_SECURITY_USER_LEVEL
|NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
)) == 0) {
1123 if (!lp_client_plaintext_auth() && (*pass
)) {
1124 DEBUG(1, ("Server requested plaintext "
1125 "password but 'client plaintext "
1126 "auth' is disabled\n"));
1131 * Non-encrypted passwords - convert to DOS codepage before using.
1133 passlen
= clistr_push(cli
, pword
, pass
, sizeof(pword
), STR_TERMINATE
);
1137 memcpy(pword
, pass
, passlen
);
1142 slprintf(fullshare
, sizeof(fullshare
)-1,
1143 "\\\\%s\\%s", cli
->desthost
, share
);
1145 cli_set_message(cli
->outbuf
,4, 0, True
);
1146 SCVAL(cli
->outbuf
,smb_com
,SMBtconX
);
1147 cli_setup_packet(cli
);
1149 SSVAL(cli
->outbuf
,smb_vwv0
,0xFF);
1150 SSVAL(cli
->outbuf
,smb_vwv2
,TCONX_FLAG_EXTENDED_RESPONSE
);
1151 SSVAL(cli
->outbuf
,smb_vwv3
,passlen
);
1153 p
= smb_buf(cli
->outbuf
);
1155 memcpy(p
,pword
,passlen
);
1158 p
+= clistr_push(cli
, p
, fullshare
, -1, STR_TERMINATE
|STR_UPPER
);
1159 p
+= clistr_push(cli
, p
, dev
, -1, STR_TERMINATE
|STR_UPPER
| STR_ASCII
);
1161 cli_setup_bcc(cli
, p
);
1164 if (!cli_receive_smb(cli
))
1167 if (cli_is_error(cli
))
1170 clistr_pull(cli
, cli
->dev
, smb_buf(cli
->inbuf
), sizeof(fstring
), -1, STR_TERMINATE
|STR_ASCII
);
1172 if (cli
->protocol
>= PROTOCOL_NT1
&&
1173 smb_buflen(cli
->inbuf
) == 3) {
1174 /* almost certainly win95 - enable bug fixes */
1178 /* Make sure that we have the optional support 16-bit field. WCT > 2 */
1179 /* Avoids issues when connecting to Win9x boxes sharing files */
1181 cli
->dfsroot
= False
;
1182 if ( (CVAL(cli
->inbuf
, smb_wct
))>2 && cli
->protocol
>= PROTOCOL_LANMAN2
)
1183 cli
->dfsroot
= (SVAL( cli
->inbuf
, smb_vwv2
) & SMB_SHARE_IN_DFS
) ? True
: False
;
1185 cli
->cnum
= SVAL(cli
->inbuf
,smb_tid
);
1189 /****************************************************************************
1190 Send a tree disconnect.
1191 ****************************************************************************/
1193 bool cli_tdis(struct cli_state
*cli
)
1195 memset(cli
->outbuf
,'\0',smb_size
);
1196 cli_set_message(cli
->outbuf
,0,0,True
);
1197 SCVAL(cli
->outbuf
,smb_com
,SMBtdis
);
1198 SSVAL(cli
->outbuf
,smb_tid
,cli
->cnum
);
1199 cli_setup_packet(cli
);
1202 if (!cli_receive_smb(cli
))
1205 if (cli_is_error(cli
)) {
1213 /****************************************************************************
1214 Send a negprot command.
1215 ****************************************************************************/
1217 void cli_negprot_send(struct cli_state
*cli
)
1222 if (cli
->protocol
< PROTOCOL_NT1
)
1223 cli
->use_spnego
= False
;
1225 memset(cli
->outbuf
,'\0',smb_size
);
1227 /* setup the protocol strings */
1228 cli_set_message(cli
->outbuf
,0,0,True
);
1230 p
= smb_buf(cli
->outbuf
);
1232 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1235 p
+= clistr_push(cli
, p
, prots
[numprots
].name
, -1, STR_TERMINATE
);
1238 SCVAL(cli
->outbuf
,smb_com
,SMBnegprot
);
1239 cli_setup_bcc(cli
, p
);
1240 cli_setup_packet(cli
);
1242 SCVAL(smb_buf(cli
->outbuf
),0,2);
1247 /****************************************************************************
1248 Send a negprot command.
1249 ****************************************************************************/
1251 bool cli_negprot(struct cli_state
*cli
)
1257 if (cli
->protocol
< PROTOCOL_NT1
)
1258 cli
->use_spnego
= False
;
1260 memset(cli
->outbuf
,'\0',smb_size
);
1262 /* setup the protocol strings */
1263 for (plength
=0,numprots
=0;
1264 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1266 plength
+= strlen(prots
[numprots
].name
)+2;
1268 cli_set_message(cli
->outbuf
,0,plength
,True
);
1270 p
= smb_buf(cli
->outbuf
);
1272 prots
[numprots
].name
&& prots
[numprots
].prot
<=cli
->protocol
;
1275 p
+= clistr_push(cli
, p
, prots
[numprots
].name
, -1, STR_TERMINATE
);
1278 SCVAL(cli
->outbuf
,smb_com
,SMBnegprot
);
1279 cli_setup_packet(cli
);
1281 SCVAL(smb_buf(cli
->outbuf
),0,2);
1284 if (!cli_receive_smb(cli
))
1287 show_msg(cli
->inbuf
);
1289 if (cli_is_error(cli
) ||
1290 ((int)SVAL(cli
->inbuf
,smb_vwv0
) >= numprots
)) {
1294 cli
->protocol
= prots
[SVAL(cli
->inbuf
,smb_vwv0
)].prot
;
1296 if ((cli
->protocol
< PROTOCOL_NT1
) && cli
->sign_info
.mandatory_signing
) {
1297 DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
1301 if (cli
->protocol
>= PROTOCOL_NT1
) {
1304 cli
->sec_mode
= CVAL(cli
->inbuf
,smb_vwv1
);
1305 cli
->max_mux
= SVAL(cli
->inbuf
, smb_vwv1
+1);
1306 cli
->max_xmit
= IVAL(cli
->inbuf
,smb_vwv3
+1);
1307 cli
->sesskey
= IVAL(cli
->inbuf
,smb_vwv7
+1);
1308 cli
->serverzone
= SVALS(cli
->inbuf
,smb_vwv15
+1);
1309 cli
->serverzone
*= 60;
1310 /* this time arrives in real GMT */
1311 ts
= interpret_long_date(cli
->inbuf
+smb_vwv11
+1);
1312 cli
->servertime
= ts
.tv_sec
;
1313 cli
->secblob
= data_blob(smb_buf(cli
->inbuf
),smb_buflen(cli
->inbuf
));
1314 cli
->capabilities
= IVAL(cli
->inbuf
,smb_vwv9
+1);
1315 if (cli
->capabilities
& CAP_RAW_MODE
) {
1316 cli
->readbraw_supported
= True
;
1317 cli
->writebraw_supported
= True
;
1319 /* work out if they sent us a workgroup */
1320 if (!(cli
->capabilities
& CAP_EXTENDED_SECURITY
) &&
1321 smb_buflen(cli
->inbuf
) > 8) {
1322 clistr_pull(cli
, cli
->server_domain
,
1323 smb_buf(cli
->inbuf
)+8, sizeof(cli
->server_domain
),
1324 smb_buflen(cli
->inbuf
)-8, STR_UNICODE
|STR_NOALIGN
);
1328 * As signing is slow we only turn it on if either the client or
1329 * the server require it. JRA.
1332 if (cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_REQUIRED
) {
1333 /* Fail if server says signing is mandatory and we don't want to support it. */
1334 if (!cli
->sign_info
.allow_smb_signing
) {
1335 DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
1338 cli
->sign_info
.negotiated_smb_signing
= True
;
1339 cli
->sign_info
.mandatory_signing
= True
;
1340 } else if (cli
->sign_info
.mandatory_signing
&& cli
->sign_info
.allow_smb_signing
) {
1341 /* Fail if client says signing is mandatory and the server doesn't support it. */
1342 if (!(cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_ENABLED
)) {
1343 DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
1346 cli
->sign_info
.negotiated_smb_signing
= True
;
1347 cli
->sign_info
.mandatory_signing
= True
;
1348 } else if (cli
->sec_mode
& NEGOTIATE_SECURITY_SIGNATURES_ENABLED
) {
1349 cli
->sign_info
.negotiated_smb_signing
= True
;
1352 if (cli
->capabilities
& (CAP_LARGE_READX
|CAP_LARGE_WRITEX
)) {
1353 SAFE_FREE(cli
->outbuf
);
1354 SAFE_FREE(cli
->inbuf
);
1355 cli
->outbuf
= (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE
+LARGE_WRITEX_HDR_SIZE
+SAFETY_MARGIN
);
1356 cli
->inbuf
= (char *)SMB_MALLOC(CLI_SAMBA_MAX_LARGE_READX_SIZE
+LARGE_WRITEX_HDR_SIZE
+SAFETY_MARGIN
);
1357 cli
->bufsize
= CLI_SAMBA_MAX_LARGE_READX_SIZE
+ LARGE_WRITEX_HDR_SIZE
;
1360 } else if (cli
->protocol
>= PROTOCOL_LANMAN1
) {
1361 cli
->use_spnego
= False
;
1362 cli
->sec_mode
= SVAL(cli
->inbuf
,smb_vwv1
);
1363 cli
->max_xmit
= SVAL(cli
->inbuf
,smb_vwv2
);
1364 cli
->max_mux
= SVAL(cli
->inbuf
, smb_vwv3
);
1365 cli
->sesskey
= IVAL(cli
->inbuf
,smb_vwv6
);
1366 cli
->serverzone
= SVALS(cli
->inbuf
,smb_vwv10
);
1367 cli
->serverzone
*= 60;
1368 /* this time is converted to GMT by make_unix_date */
1369 cli
->servertime
= cli_make_unix_date(cli
,cli
->inbuf
+smb_vwv8
);
1370 cli
->readbraw_supported
= ((SVAL(cli
->inbuf
,smb_vwv5
) & 0x1) != 0);
1371 cli
->writebraw_supported
= ((SVAL(cli
->inbuf
,smb_vwv5
) & 0x2) != 0);
1372 cli
->secblob
= data_blob(smb_buf(cli
->inbuf
),smb_buflen(cli
->inbuf
));
1374 /* the old core protocol */
1375 cli
->use_spnego
= False
;
1377 cli
->serverzone
= get_time_zone(time(NULL
));
1380 cli
->max_xmit
= MIN(cli
->max_xmit
, CLI_BUFFER_SIZE
);
1382 /* a way to force ascii SMB */
1383 if (getenv("CLI_FORCE_ASCII"))
1384 cli
->capabilities
&= ~CAP_UNICODE
;
1389 /****************************************************************************
1390 Send a session request. See rfc1002.txt 4.3 and 4.3.2.
1391 ****************************************************************************/
1393 bool cli_session_request(struct cli_state
*cli
,
1394 struct nmb_name
*calling
, struct nmb_name
*called
)
1399 memcpy(&(cli
->calling
), calling
, sizeof(*calling
));
1400 memcpy(&(cli
->called
), called
, sizeof(*called
));
1402 /* put in the destination name */
1403 p
= cli
->outbuf
+len
;
1404 name_mangle(cli
->called
.name
, p
, cli
->called
.name_type
);
1408 p
= cli
->outbuf
+len
;
1409 name_mangle(cli
->calling
.name
, p
, cli
->calling
.name_type
);
1412 /* 445 doesn't have session request */
1413 if (cli
->port
== 445)
1416 /* send a session request (RFC 1002) */
1417 /* setup the packet length
1418 * Remove four bytes from the length count, since the length
1419 * field in the NBT Session Service header counts the number
1420 * of bytes which follow. The cli_send_smb() function knows
1421 * about this and accounts for those four bytes.
1425 _smb_setlen(cli
->outbuf
,len
);
1426 SCVAL(cli
->outbuf
,0,0x81);
1429 DEBUG(5,("Sent session request\n"));
1431 if (!cli_receive_smb(cli
))
1434 if (CVAL(cli
->inbuf
,0) == 0x84) {
1435 /* C. Hoch 9/14/95 Start */
1436 /* For information, here is the response structure.
1437 * We do the byte-twiddling to for portability.
1438 struct RetargetResponse{
1440 unsigned char flags;
1446 uint16_t port
= (CVAL(cli
->inbuf
,8)<<8)+CVAL(cli
->inbuf
,9);
1447 struct in_addr dest_ip
;
1449 /* SESSION RETARGET */
1450 putip((char *)&dest_ip
,cli
->inbuf
+4);
1451 in_addr_to_sockaddr_storage(&cli
->dest_ss
, dest_ip
);
1453 cli
->fd
= open_socket_out(SOCK_STREAM
,
1456 LONG_CONNECT_TIMEOUT
);
1460 DEBUG(3,("Retargeted\n"));
1462 set_socket_options(cli
->fd
, lp_socket_options());
1469 DEBUG(0,("Retarget recursion - failing\n"));
1473 ret
= cli_session_request(cli
, calling
, called
);
1477 } /* C. Hoch 9/14/95 End */
1479 if (CVAL(cli
->inbuf
,0) != 0x82) {
1480 /* This is the wrong place to put the error... JRA. */
1481 cli
->rap_error
= CVAL(cli
->inbuf
,4);
1487 /****************************************************************************
1488 Open the client sockets.
1489 ****************************************************************************/
1491 NTSTATUS
cli_connect(struct cli_state
*cli
,
1493 struct sockaddr_storage
*dest_ss
)
1496 int name_type
= 0x20;
1497 TALLOC_CTX
*frame
= talloc_stackframe();
1498 unsigned int num_addrs
= 0;
1500 struct sockaddr_storage
*ss_arr
= NULL
;
1503 /* reasonable default hostname */
1505 host
= star_smbserver_name
;
1508 fstrcpy(cli
->desthost
, host
);
1509 fstr_sprintf(cli
->srv_name_slash
, "\\\\%s", cli
->desthost
);
1510 strupper_m(cli
->srv_name_slash
);
1512 /* allow hostnames of the form NAME#xx and do a netbios lookup */
1513 if ((p
= strchr(cli
->desthost
, '#'))) {
1514 name_type
= strtol(p
+1, NULL
, 16);
1518 if (!dest_ss
|| is_zero_addr(dest_ss
)) {
1519 NTSTATUS status
=resolve_name_list(frame
,
1524 if (!NT_STATUS_IS_OK(status
)) {
1526 return NT_STATUS_BAD_NETWORK_NAME
;
1530 ss_arr
= TALLOC_P(frame
, struct sockaddr_storage
);
1533 return NT_STATUS_NO_MEMORY
;
1538 for (i
= 0; i
< num_addrs
; i
++) {
1539 cli
->dest_ss
= ss_arr
[i
];
1540 if (getenv("LIBSMB_PROG")) {
1541 cli
->fd
= sock_exec(getenv("LIBSMB_PROG"));
1543 /* try 445 first, then 139 */
1544 uint16_t port
= cli
->port
?cli
->port
:445;
1545 cli
->fd
= open_socket_out(SOCK_STREAM
, &cli
->dest_ss
,
1546 port
, cli
->timeout
);
1547 if (cli
->fd
== -1 && cli
->port
== 0) {
1549 cli
->fd
= open_socket_out(SOCK_STREAM
, &cli
->dest_ss
,
1550 port
, cli
->timeout
);
1552 if (cli
->fd
!= -1) {
1556 if (cli
->fd
== -1) {
1557 char addr
[INET6_ADDRSTRLEN
];
1558 print_sockaddr(addr
, sizeof(addr
), &ss_arr
[i
]);
1559 DEBUG(2,("Error connecting to %s (%s)\n",
1560 dest_ss
?addr
:host
,strerror(errno
)));
1562 /* Exit from loop on first connection. */
1567 if (cli
->fd
== -1) {
1569 return map_nt_error_from_unix(errno
);
1573 *dest_ss
= cli
->dest_ss
;
1576 set_socket_options(cli
->fd
, lp_socket_options());
1579 return NT_STATUS_OK
;
1583 establishes a connection to after the negprot.
1584 @param output_cli A fully initialised cli structure, non-null only on success
1585 @param dest_host The netbios name of the remote host
1586 @param dest_ss (optional) The the destination IP, NULL for name based lookup
1587 @param port (optional) The destination port (0 for default)
1588 @param retry bool. Did this connection fail with a retryable error ?
1591 NTSTATUS
cli_start_connection(struct cli_state
**output_cli
,
1592 const char *my_name
,
1593 const char *dest_host
,
1594 struct sockaddr_storage
*dest_ss
, int port
,
1595 int signing_state
, int flags
,
1599 struct nmb_name calling
;
1600 struct nmb_name called
;
1601 struct cli_state
*cli
;
1602 struct sockaddr_storage ss
;
1608 my_name
= global_myname();
1610 if (!(cli
= cli_initialise())) {
1611 return NT_STATUS_NO_MEMORY
;
1614 make_nmb_name(&calling
, my_name
, 0x0);
1615 make_nmb_name(&called
, dest_host
, 0x20);
1617 if (cli_set_port(cli
, port
) != port
) {
1619 return NT_STATUS_UNSUCCESSFUL
;
1622 cli_set_timeout(cli
, 10000); /* 10 seconds. */
1632 DEBUG(3,("Connecting to host=%s\n", dest_host
));
1634 nt_status
= cli_connect(cli
, dest_host
, &ss
);
1635 if (!NT_STATUS_IS_OK(nt_status
)) {
1636 char addr
[INET6_ADDRSTRLEN
];
1637 print_sockaddr(addr
, sizeof(addr
), &ss
);
1638 DEBUG(1,("cli_start_connection: failed to connect to %s (%s). Error %s\n",
1639 nmb_namestr(&called
), addr
, nt_errstr(nt_status
) ));
1647 if (!cli_session_request(cli
, &calling
, &called
)) {
1649 DEBUG(1,("session request to %s failed (%s)\n",
1650 called
.name
, cli_errstr(cli
)));
1651 if ((p
=strchr(called
.name
, '.')) && !is_ipaddress(called
.name
)) {
1655 if (strcmp(called
.name
, star_smbserver_name
)) {
1656 make_nmb_name(&called
, star_smbserver_name
, 0x20);
1659 return NT_STATUS_BAD_NETWORK_NAME
;
1662 cli_setup_signing_state(cli
, signing_state
);
1664 if (flags
& CLI_FULL_CONNECTION_DONT_SPNEGO
)
1665 cli
->use_spnego
= False
;
1666 else if (flags
& CLI_FULL_CONNECTION_USE_KERBEROS
)
1667 cli
->use_kerberos
= True
;
1669 if ((flags
& CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS
) &&
1670 cli
->use_kerberos
) {
1671 cli
->fallback_after_kerberos
= true;
1674 if (!cli_negprot(cli
)) {
1675 DEBUG(1,("failed negprot\n"));
1676 nt_status
= cli_nt_error(cli
);
1677 if (NT_STATUS_IS_OK(nt_status
)) {
1678 nt_status
= NT_STATUS_UNSUCCESSFUL
;
1685 return NT_STATUS_OK
;
1690 establishes a connection right up to doing tconX, password specified.
1691 @param output_cli A fully initialised cli structure, non-null only on success
1692 @param dest_host The netbios name of the remote host
1693 @param dest_ip (optional) The the destination IP, NULL for name based lookup
1694 @param port (optional) The destination port (0 for default)
1695 @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
1696 @param service_type The 'type' of serivice.
1697 @param user Username, unix string
1698 @param domain User's domain
1699 @param password User's password, unencrypted unix string.
1700 @param retry bool. Did this connection fail with a retryable error ?
1703 NTSTATUS
cli_full_connection(struct cli_state
**output_cli
,
1704 const char *my_name
,
1705 const char *dest_host
,
1706 struct sockaddr_storage
*dest_ss
, int port
,
1707 const char *service
, const char *service_type
,
1708 const char *user
, const char *domain
,
1709 const char *password
, int flags
,
1714 struct cli_state
*cli
= NULL
;
1715 int pw_len
= password
? strlen(password
)+1 : 0;
1719 if (password
== NULL
) {
1723 nt_status
= cli_start_connection(&cli
, my_name
, dest_host
,
1724 dest_ss
, port
, signing_state
,
1727 if (!NT_STATUS_IS_OK(nt_status
)) {
1731 nt_status
= cli_session_setup(cli
, user
, password
, pw_len
, password
,
1733 if (!NT_STATUS_IS_OK(nt_status
)) {
1735 if (!(flags
& CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK
)) {
1736 DEBUG(1,("failed session setup with %s\n",
1737 nt_errstr(nt_status
)));
1742 nt_status
= cli_session_setup(cli
, "", "", 0, "", 0, domain
);
1743 if (!NT_STATUS_IS_OK(nt_status
)) {
1744 DEBUG(1,("anonymous failed session setup with %s\n",
1745 nt_errstr(nt_status
)));
1752 if (!cli_send_tconX(cli
, service
, service_type
, password
, pw_len
)) {
1753 nt_status
= cli_nt_error(cli
);
1754 DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status
)));
1756 if (NT_STATUS_IS_OK(nt_status
)) {
1757 nt_status
= NT_STATUS_UNSUCCESSFUL
;
1763 cli_init_creds(cli
, user
, domain
, password
);
1766 return NT_STATUS_OK
;
1769 /****************************************************************************
1770 Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
1771 ****************************************************************************/
1773 bool attempt_netbios_session_request(struct cli_state
**ppcli
, const char *srchost
, const char *desthost
,
1774 struct sockaddr_storage
*pdest_ss
)
1776 struct nmb_name calling
, called
;
1778 make_nmb_name(&calling
, srchost
, 0x0);
1781 * If the called name is an IP address
1782 * then use *SMBSERVER immediately.
1785 if(is_ipaddress(desthost
)) {
1786 make_nmb_name(&called
, star_smbserver_name
, 0x20);
1788 make_nmb_name(&called
, desthost
, 0x20);
1791 if (!cli_session_request(*ppcli
, &calling
, &called
)) {
1793 struct nmb_name smbservername
;
1795 make_nmb_name(&smbservername
, star_smbserver_name
, 0x20);
1798 * If the name wasn't *SMBSERVER then
1799 * try with *SMBSERVER if the first name fails.
1802 if (nmb_name_equal(&called
, &smbservername
)) {
1805 * The name used was *SMBSERVER, don't bother with another name.
1808 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
1809 with error %s.\n", desthost
, cli_errstr(*ppcli
) ));
1814 cli_shutdown(*ppcli
);
1816 *ppcli
= cli_initialise();
1818 /* Out of memory... */
1822 status
= cli_connect(*ppcli
, desthost
, pdest_ss
);
1823 if (!NT_STATUS_IS_OK(status
) ||
1824 !cli_session_request(*ppcli
, &calling
, &smbservername
)) {
1825 DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
1826 name *SMBSERVER with error %s\n", desthost
, cli_errstr(*ppcli
) ));
1834 /****************************************************************************
1835 Send an old style tcon.
1836 ****************************************************************************/
1837 NTSTATUS
cli_raw_tcon(struct cli_state
*cli
,
1838 const char *service
, const char *pass
, const char *dev
,
1839 uint16
*max_xmit
, uint16
*tid
)
1843 if (!lp_client_plaintext_auth() && (*pass
)) {
1844 DEBUG(1, ("Server requested plaintext password but 'client "
1845 "plaintext auth' is disabled\n"));
1846 return NT_STATUS_ACCESS_DENIED
;
1849 memset(cli
->outbuf
,'\0',smb_size
);
1850 memset(cli
->inbuf
,'\0',smb_size
);
1852 cli_set_message(cli
->outbuf
, 0, 0, True
);
1853 SCVAL(cli
->outbuf
,smb_com
,SMBtcon
);
1854 cli_setup_packet(cli
);
1856 p
= smb_buf(cli
->outbuf
);
1857 *p
++ = 4; p
+= clistr_push(cli
, p
, service
, -1, STR_TERMINATE
| STR_NOALIGN
);
1858 *p
++ = 4; p
+= clistr_push(cli
, p
, pass
, -1, STR_TERMINATE
| STR_NOALIGN
);
1859 *p
++ = 4; p
+= clistr_push(cli
, p
, dev
, -1, STR_TERMINATE
| STR_NOALIGN
);
1861 cli_setup_bcc(cli
, p
);
1864 if (!cli_receive_smb(cli
)) {
1865 return NT_STATUS_UNEXPECTED_NETWORK_ERROR
;
1868 if (cli_is_error(cli
)) {
1869 return cli_nt_error(cli
);
1872 *max_xmit
= SVAL(cli
->inbuf
, smb_vwv0
);
1873 *tid
= SVAL(cli
->inbuf
, smb_vwv1
);
1875 return NT_STATUS_OK
;
1878 /* Return a cli_state pointing at the IPC$ share for the given server */
1880 struct cli_state
*get_ipc_connect(char *server
,
1881 struct sockaddr_storage
*server_ss
,
1882 const struct user_auth_info
*user_info
)
1884 struct cli_state
*cli
;
1886 uint32_t flags
= CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK
;
1888 if (user_info
->use_kerberos
) {
1889 flags
|= CLI_FULL_CONNECTION_USE_KERBEROS
;
1892 nt_status
= cli_full_connection(&cli
, NULL
, server
, server_ss
, 0, "IPC$", "IPC",
1893 user_info
->username
? user_info
->username
: "",
1895 user_info
->password
? user_info
->password
: "",
1899 if (NT_STATUS_IS_OK(nt_status
)) {
1901 } else if (is_ipaddress(server
)) {
1902 /* windows 9* needs a correct NMB name for connections */
1903 fstring remote_name
;
1905 if (name_status_find("*", 0, 0, server_ss
, remote_name
)) {
1906 cli
= get_ipc_connect(remote_name
, server_ss
, user_info
);
1915 * Given the IP address of a master browser on the network, return its
1916 * workgroup and connect to it.
1918 * This function is provided to allow additional processing beyond what
1919 * get_ipc_connect_master_ip_bcast() does, e.g. to retrieve the list of master
1920 * browsers and obtain each master browsers' list of domains (in case the
1921 * first master browser is recently on the network and has not yet
1922 * synchronized with other master browsers and therefore does not yet have the
1923 * entire network browse list)
1926 struct cli_state
*get_ipc_connect_master_ip(TALLOC_CTX
*ctx
,
1927 struct ip_service
*mb_ip
,
1928 const struct user_auth_info
*user_info
,
1929 char **pp_workgroup_out
)
1931 char addr
[INET6_ADDRSTRLEN
];
1933 struct cli_state
*cli
;
1934 struct sockaddr_storage server_ss
;
1936 *pp_workgroup_out
= NULL
;
1938 print_sockaddr(addr
, sizeof(addr
), &mb_ip
->ss
);
1939 DEBUG(99, ("Looking up name of master browser %s\n",
1943 * Do a name status query to find out the name of the master browser.
1944 * We use <01><02>__MSBROWSE__<02>#01 if *#00 fails because a domain
1945 * master browser will not respond to a wildcard query (or, at least,
1946 * an NT4 server acting as the domain master browser will not).
1948 * We might be able to use ONLY the query on MSBROWSE, but that's not
1949 * yet been tested with all Windows versions, so until it is, leave
1950 * the original wildcard query as the first choice and fall back to
1951 * MSBROWSE if the wildcard query fails.
1953 if (!name_status_find("*", 0, 0x1d, &mb_ip
->ss
, name
) &&
1954 !name_status_find(MSBROWSE
, 1, 0x1d, &mb_ip
->ss
, name
)) {
1956 DEBUG(99, ("Could not retrieve name status for %s\n",
1961 if (!find_master_ip(name
, &server_ss
)) {
1962 DEBUG(99, ("Could not find master ip for %s\n", name
));
1966 *pp_workgroup_out
= talloc_strdup(ctx
, name
);
1968 DEBUG(4, ("found master browser %s, %s\n", name
, addr
));
1970 print_sockaddr(addr
, sizeof(addr
), &server_ss
);
1971 cli
= get_ipc_connect(addr
, &server_ss
, user_info
);
1977 * Return the IP address and workgroup of a master browser on the network, and
1981 struct cli_state
*get_ipc_connect_master_ip_bcast(TALLOC_CTX
*ctx
,
1982 const struct user_auth_info
*user_info
,
1983 char **pp_workgroup_out
)
1985 struct ip_service
*ip_list
;
1986 struct cli_state
*cli
;
1989 *pp_workgroup_out
= NULL
;
1991 DEBUG(99, ("Do broadcast lookup for workgroups on local network\n"));
1993 /* Go looking for workgroups by broadcasting on the local network */
1995 if (!NT_STATUS_IS_OK(name_resolve_bcast(MSBROWSE
, 1, &ip_list
,
1997 DEBUG(99, ("No master browsers responded\n"));
2001 for (i
= 0; i
< count
; i
++) {
2002 char addr
[INET6_ADDRSTRLEN
];
2003 print_sockaddr(addr
, sizeof(addr
), &ip_list
[i
].ss
);
2004 DEBUG(99, ("Found master browser %s\n", addr
));
2006 cli
= get_ipc_connect_master_ip(ctx
, &ip_list
[i
],
2007 user_info
, pp_workgroup_out
);