2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 /****************************************************************************
25 Get UNIX extensions version info.
26 ****************************************************************************/
28 BOOL cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor, uint16 *pminor,
29 uint32 *pcaplow, uint32 *pcaphigh)
34 char *rparam=NULL, *rdata=NULL;
35 unsigned int rparam_count=0, rdata_count=0;
37 setup = TRANSACT2_QFSINFO;
39 SSVAL(param,0,SMB_QUERY_CIFS_UNIX_INFO);
41 if (!cli_send_trans(cli, SMBtrans2,
50 if (!cli_receive_trans(cli, SMBtrans2,
51 &rparam, &rparam_count,
52 &rdata, &rdata_count)) {
56 if (cli_is_error(cli)) {
63 if (rdata_count < 12) {
67 *pmajor = SVAL(rdata,0);
68 *pminor = SVAL(rdata,2);
69 *pcaplow = IVAL(rdata,4);
70 *pcaphigh = IVAL(rdata,8);
72 /* todo: but not yet needed
73 * return the other stuff
83 /****************************************************************************
84 Set UNIX extensions capabilities.
85 ****************************************************************************/
87 BOOL cli_set_unix_extensions_capabilities(struct cli_state *cli, uint16 major, uint16 minor,
88 uint32 caplow, uint32 caphigh)
94 char *rparam=NULL, *rdata=NULL;
95 unsigned int rparam_count=0, rdata_count=0;
97 setup = TRANSACT2_SETFSINFO;
100 SSVAL(param,2,SMB_SET_CIFS_UNIX_INFO);
104 SIVAL(data,4,caplow);
105 SIVAL(data,8,caphigh);
107 if (!cli_send_trans(cli, SMBtrans2,
116 if (!cli_receive_trans(cli, SMBtrans2,
117 &rparam, &rparam_count,
118 &rdata, &rdata_count)) {
122 if (cli_is_error(cli)) {
136 BOOL cli_get_fs_attr_info(struct cli_state *cli, uint32 *fs_attr)
141 char *rparam=NULL, *rdata=NULL;
142 unsigned int rparam_count=0, rdata_count=0;
145 smb_panic("cli_get_fs_attr_info() called with NULL Pionter!");
147 setup = TRANSACT2_QFSINFO;
149 SSVAL(param,0,SMB_QUERY_FS_ATTRIBUTE_INFO);
151 if (!cli_send_trans(cli, SMBtrans2,
160 if (!cli_receive_trans(cli, SMBtrans2,
161 &rparam, &rparam_count,
162 &rdata, &rdata_count)) {
166 if (cli_is_error(cli)) {
173 if (rdata_count < 12) {
177 *fs_attr = IVAL(rdata,0);
179 /* todo: but not yet needed
180 * return the other stuff
190 BOOL cli_get_fs_volume_info_old(struct cli_state *cli, fstring volume_name, uint32 *pserial_number)
195 char *rparam=NULL, *rdata=NULL;
196 unsigned int rparam_count=0, rdata_count=0;
199 setup = TRANSACT2_QFSINFO;
201 SSVAL(param,0,SMB_INFO_VOLUME);
203 if (!cli_send_trans(cli, SMBtrans2,
212 if (!cli_receive_trans(cli, SMBtrans2,
213 &rparam, &rparam_count,
214 &rdata, &rdata_count)) {
218 if (cli_is_error(cli)) {
225 if (rdata_count < 5) {
229 if (pserial_number) {
230 *pserial_number = IVAL(rdata,0);
232 nlen = CVAL(rdata,l2_vol_cch);
233 clistr_pull(cli, volume_name, rdata + l2_vol_szVolLabel, sizeof(fstring), nlen, STR_NOALIGN);
235 /* todo: but not yet needed
236 * return the other stuff
246 BOOL cli_get_fs_volume_info(struct cli_state *cli, fstring volume_name, uint32 *pserial_number, time_t *pdate)
251 char *rparam=NULL, *rdata=NULL;
252 unsigned int rparam_count=0, rdata_count=0;
255 setup = TRANSACT2_QFSINFO;
257 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
259 if (!cli_send_trans(cli, SMBtrans2,
268 if (!cli_receive_trans(cli, SMBtrans2,
269 &rparam, &rparam_count,
270 &rdata, &rdata_count)) {
274 if (cli_is_error(cli)) {
281 if (rdata_count < 19) {
287 ts = interpret_long_date(rdata);
290 if (pserial_number) {
291 *pserial_number = IVAL(rdata,8);
293 nlen = IVAL(rdata,12);
294 clistr_pull(cli, volume_name, rdata + 18, sizeof(fstring), nlen, STR_UNICODE);
296 /* todo: but not yet needed
297 * return the other stuff
307 /******************************************************************************
308 Send/receive the request encryption blob.
309 ******************************************************************************/
311 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
315 char *rparam=NULL, *rdata=NULL;
316 unsigned int rparam_count=0, rdata_count=0;
317 NTSTATUS status = NT_STATUS_OK;
319 setup = TRANSACT2_SETFSINFO;
322 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
324 if (!cli_send_trans(cli, SMBtrans2,
329 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
330 status = cli_nt_error(cli);
334 if (!cli_receive_trans(cli, SMBtrans2,
335 &rparam, &rparam_count,
336 &rdata, &rdata_count)) {
337 status = cli_nt_error(cli);
341 if (cli_is_error(cli)) {
342 status = cli_nt_error(cli);
343 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
348 *out = data_blob(rdata, rdata_count);
349 *param_out = data_blob(rparam, rparam_count);
358 /******************************************************************************
359 Make a client state struct.
360 ******************************************************************************/
362 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
364 struct smb_trans_enc_state *es = NULL;
365 es = SMB_MALLOC_P(struct smb_trans_enc_state);
370 es->smb_enc_type = smb_enc_type;
372 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
373 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
374 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
375 if (!es->s.gss_state) {
379 ZERO_STRUCTP(es->s.gss_state);
381 DEBUG(0,("make_cli_enc_state: no krb5 compiled.\n"));
389 /******************************************************************************
390 Start a raw ntlmssp encryption.
391 ******************************************************************************/
393 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
398 DATA_BLOB blob_in = data_blob(NULL, 0);
399 DATA_BLOB blob_out = data_blob(NULL, 0);
400 DATA_BLOB param_out = data_blob(NULL, 0);
401 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
402 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
405 return NT_STATUS_NO_MEMORY;
407 status = ntlmssp_client_start(&es->s.ntlmssp_state);
408 if (!NT_STATUS_IS_OK(status)) {
412 ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
413 es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
415 if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
418 if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
421 if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
426 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
427 data_blob_free(&blob_in);
428 data_blob_free(¶m_out);
429 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
430 status = enc_blob_send_receive(cli, &blob_out, &blob_in, ¶m_out);
432 if (param_out.length == 2) {
433 es->enc_ctx_num = SVAL(param_out.data, 0);
435 data_blob_free(&blob_out);
436 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
438 data_blob_free(&blob_in);
440 if (NT_STATUS_IS_OK(status)) {
441 /* Replace the old state, if any. */
442 if (cli->trans_enc_state) {
443 common_free_encryption_state(&cli->trans_enc_state);
445 cli->trans_enc_state = es;
446 cli->trans_enc_state->enc_on = True;
452 common_free_encryption_state(&es);
456 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
458 #ifndef SMB_GSS_REQUIRED_FLAGS
459 #define SMB_GSS_REQUIRED_FLAGS (GSS_C_CONF_FLAG|GSS_C_INTEG_FLAG|GSS_C_MUTUAL_FLAG|GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG)
462 /******************************************************************************
463 Get client gss blob to send to a server.
464 ******************************************************************************/
466 static NTSTATUS make_cli_gss_blob(struct smb_trans_enc_state *es,
470 DATA_BLOB spnego_blob_in,
471 DATA_BLOB *p_blob_out)
473 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
477 gss_buffer_desc input_name;
478 gss_buffer_desc *p_tok_in;
479 gss_buffer_desc tok_out, tok_in;
480 DATA_BLOB blob_out = data_blob(NULL, 0);
481 DATA_BLOB blob_in = data_blob(NULL, 0);
482 char *host_princ_s = NULL;
483 OM_uint32 ret_flags = 0;
484 NTSTATUS status = NT_STATUS_OK;
486 memset(&tok_out, '\0', sizeof(tok_out));
488 /* Get a ticket for the service@host */
489 asprintf(&host_princ_s, "%s@%s", service, host);
490 if (host_princ_s == NULL) {
491 return NT_STATUS_NO_MEMORY;
494 input_name.value = host_princ_s;
495 input_name.length = strlen(host_princ_s) + 1;
497 ret = gss_import_name(&min,
499 GSS_C_NT_HOSTBASED_SERVICE,
502 if (ret != GSS_S_COMPLETE) {
503 SAFE_FREE(host_princ_s);
504 return map_nt_error_from_gss(ret, min);
507 if (spnego_blob_in.length == 0) {
508 p_tok_in = GSS_C_NO_BUFFER;
510 /* Remove the SPNEGO wrapper */
511 if (!spnego_parse_auth_response(spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
512 status = NT_STATUS_UNSUCCESSFUL;
515 tok_in.value = blob_in.data;
516 tok_in.length = blob_in.length;
520 ret = gss_init_sec_context(&min,
521 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
522 &es->s.gss_state->gss_ctx,
524 GSS_C_NO_OID, /* default OID. */
525 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG,
526 GSS_C_INDEFINITE, /* requested ticket lifetime. */
527 NULL, /* no channel bindings */
529 NULL, /* ignore mech type */
532 NULL); /* ignore time_rec */
534 status = map_nt_error_from_gss(ret, min);
535 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
539 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
540 status = NT_STATUS_ACCESS_DENIED;
543 blob_out = data_blob(tok_out.value, tok_out.length);
545 /* Wrap in an SPNEGO wrapper */
546 *p_blob_out = gen_negTokenTarg(krb_mechs, blob_out);
550 data_blob_free(&blob_out);
551 data_blob_free(&blob_in);
552 SAFE_FREE(host_princ_s);
553 gss_release_name(&min, &srv_name);
555 gss_release_buffer(&min, &tok_out);
560 /******************************************************************************
561 Start a SPNEGO gssapi encryption context.
562 ******************************************************************************/
564 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
566 DATA_BLOB blob_recv = data_blob(NULL, 0);
567 DATA_BLOB blob_send = data_blob(NULL, 0);
568 DATA_BLOB param_out = data_blob(NULL, 0);
569 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
571 const char *servicename;
572 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
575 return NT_STATUS_NO_MEMORY;
578 name_to_fqdn(fqdn, cli->desthost);
581 servicename = "cifs";
582 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
583 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
584 servicename = "host";
585 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
586 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
592 data_blob_free(&blob_recv);
593 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, ¶m_out);
594 if (param_out.length == 2) {
595 es->enc_ctx_num = SVAL(param_out.data, 0);
597 data_blob_free(&blob_send);
598 status = make_cli_gss_blob(es, servicename, fqdn, status, blob_recv, &blob_send);
599 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
600 data_blob_free(&blob_recv);
602 if (NT_STATUS_IS_OK(status)) {
603 /* Replace the old state, if any. */
604 if (cli->trans_enc_state) {
605 common_free_encryption_state(&cli->trans_enc_state);
607 cli->trans_enc_state = es;
608 cli->trans_enc_state->enc_on = True;
614 common_free_encryption_state(&es);