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/*
Unix SMB/CIFS implementation.
SMB client session context management functions
Copyright (C) Andrew Tridgell 1994-2005
Copyright (C) James Myers 2003 <myersjj@samba.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "system/filesys.h"
#include "param/param.h"
#define SETUP_REQUEST_SESSION(cmd, wct, buflen) do { \
req = smbcli_request_setup_session(session, cmd, wct, buflen); \
if (!req) return NULL; \
} while (0)
/****************************************************************************
Initialize the session context
****************************************************************************/
struct smbcli_session *smbcli_session_init(struct smbcli_transport *transport,
TALLOC_CTX *parent_ctx, bool primary)
{
struct smbcli_session *session;
uint16_t flags2;
uint32_t capabilities;
session = talloc_zero(parent_ctx, struct smbcli_session);
if (!session) {
return NULL;
}
if (primary) {
session->transport = talloc_steal(session, transport);
} else {
session->transport = talloc_reference(session, transport);
}
session->pid = (uint16_t)getpid();
session->vuid = UID_FIELD_INVALID;
session->options.lanman_auth = lp_client_lanman_auth(global_loadparm);
session->options.ntlmv2_auth = lp_client_ntlmv2_auth(global_loadparm);
session->options.plaintext_auth = lp_client_plaintext_auth(global_loadparm);
capabilities = transport->negotiate.capabilities;
flags2 = FLAGS2_LONG_PATH_COMPONENTS | FLAGS2_EXTENDED_ATTRIBUTES;
if (capabilities & CAP_UNICODE) {
flags2 |= FLAGS2_UNICODE_STRINGS;
}
if (capabilities & CAP_STATUS32) {
flags2 |= FLAGS2_32_BIT_ERROR_CODES;
}
if (capabilities & CAP_EXTENDED_SECURITY) {
flags2 |= FLAGS2_EXTENDED_SECURITY;
}
if (session->transport->negotiate.sign_info.doing_signing) {
flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
}
session->flags2 = flags2;
return session;
}
/****************************************************************************
Perform a session setup (async send)
****************************************************************************/
struct smbcli_request *smb_raw_sesssetup_send(struct smbcli_session *session,
union smb_sesssetup *parms)
{
struct smbcli_request *req = NULL;
switch (parms->old.level) {
case RAW_SESSSETUP_OLD:
SETUP_REQUEST_SESSION(SMBsesssetupX, 10, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv,VWV(2),parms->old.in.bufsize);
SSVAL(req->out.vwv,VWV(3),parms->old.in.mpx_max);
SSVAL(req->out.vwv,VWV(4),parms->old.in.vc_num);
SIVAL(req->out.vwv,VWV(5),parms->old.in.sesskey);
SSVAL(req->out.vwv,VWV(7),parms->old.in.password.length);
SIVAL(req->out.vwv,VWV(8), 0); /* reserved */
smbcli_req_append_blob(req, &parms->old.in.password);
smbcli_req_append_string(req, parms->old.in.user, STR_TERMINATE);
smbcli_req_append_string(req, parms->old.in.domain, STR_TERMINATE|STR_UPPER);
smbcli_req_append_string(req, parms->old.in.os, STR_TERMINATE);
smbcli_req_append_string(req, parms->old.in.lanman, STR_TERMINATE);
break;
case RAW_SESSSETUP_NT1:
SETUP_REQUEST_SESSION(SMBsesssetupX, 13, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), parms->nt1.in.bufsize);
SSVAL(req->out.vwv, VWV(3), parms->nt1.in.mpx_max);
SSVAL(req->out.vwv, VWV(4), parms->nt1.in.vc_num);
SIVAL(req->out.vwv, VWV(5), parms->nt1.in.sesskey);
SSVAL(req->out.vwv, VWV(7), parms->nt1.in.password1.length);
SSVAL(req->out.vwv, VWV(8), parms->nt1.in.password2.length);
SIVAL(req->out.vwv, VWV(9), 0); /* reserved */
SIVAL(req->out.vwv, VWV(11), parms->nt1.in.capabilities);
smbcli_req_append_blob(req, &parms->nt1.in.password1);
smbcli_req_append_blob(req, &parms->nt1.in.password2);
smbcli_req_append_string(req, parms->nt1.in.user, STR_TERMINATE);
smbcli_req_append_string(req, parms->nt1.in.domain, STR_TERMINATE|STR_UPPER);
smbcli_req_append_string(req, parms->nt1.in.os, STR_TERMINATE);
smbcli_req_append_string(req, parms->nt1.in.lanman, STR_TERMINATE);
break;
case RAW_SESSSETUP_SPNEGO:
SETUP_REQUEST_SESSION(SMBsesssetupX, 12, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), parms->spnego.in.bufsize);
SSVAL(req->out.vwv, VWV(3), parms->spnego.in.mpx_max);
SSVAL(req->out.vwv, VWV(4), parms->spnego.in.vc_num);
SIVAL(req->out.vwv, VWV(5), parms->spnego.in.sesskey);
SSVAL(req->out.vwv, VWV(7), parms->spnego.in.secblob.length);
SIVAL(req->out.vwv, VWV(8), 0); /* reserved */
SIVAL(req->out.vwv, VWV(10), parms->spnego.in.capabilities);
smbcli_req_append_blob(req, &parms->spnego.in.secblob);
smbcli_req_append_string(req, parms->spnego.in.os, STR_TERMINATE);
smbcli_req_append_string(req, parms->spnego.in.lanman, STR_TERMINATE);
smbcli_req_append_string(req, parms->spnego.in.workgroup, STR_TERMINATE);
break;
case RAW_SESSSETUP_SMB2:
return NULL;
}
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
return NULL;
}
return req;
}
/****************************************************************************
Perform a session setup (async recv)
****************************************************************************/
NTSTATUS smb_raw_sesssetup_recv(struct smbcli_request *req,
TALLOC_CTX *mem_ctx,
union smb_sesssetup *parms)
{
uint16_t len;
uint8_t *p;
if (!smbcli_request_receive(req)) {
return smbcli_request_destroy(req);
}
if (!NT_STATUS_IS_OK(req->status) &&
!NT_STATUS_EQUAL(req->status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
return smbcli_request_destroy(req);
}
switch (parms->old.level) {
case RAW_SESSSETUP_OLD:
SMBCLI_CHECK_WCT(req, 3);
ZERO_STRUCT(parms->old.out);
parms->old.out.vuid = SVAL(req->in.hdr, HDR_UID);
parms->old.out.action = SVAL(req->in.vwv, VWV(2));
p = req->in.data;
if (p) {
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.os, p, -1, STR_TERMINATE);
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.lanman, p, -1, STR_TERMINATE);
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.domain, p, -1, STR_TERMINATE);
}
break;
case RAW_SESSSETUP_NT1:
SMBCLI_CHECK_WCT(req, 3);
ZERO_STRUCT(parms->nt1.out);
parms->nt1.out.vuid = SVAL(req->in.hdr, HDR_UID);
parms->nt1.out.action = SVAL(req->in.vwv, VWV(2));
p = req->in.data;
if (p) {
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.os, p, -1, STR_TERMINATE);
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.lanman, p, -1, STR_TERMINATE);
if (p < (req->in.data + req->in.data_size)) {
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.domain, p, -1, STR_TERMINATE);
}
}
break;
case RAW_SESSSETUP_SPNEGO:
SMBCLI_CHECK_WCT(req, 4);
ZERO_STRUCT(parms->spnego.out);
parms->spnego.out.vuid = SVAL(req->in.hdr, HDR_UID);
parms->spnego.out.action = SVAL(req->in.vwv, VWV(2));
len = SVAL(req->in.vwv, VWV(3));
p = req->in.data;
if (!p) {
break;
}
parms->spnego.out.secblob = smbcli_req_pull_blob(&req->in.bufinfo, mem_ctx, p, len);
p += parms->spnego.out.secblob.length;
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.os, p, -1, STR_TERMINATE);
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.lanman, p, -1, STR_TERMINATE);
p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.workgroup, p, -1, STR_TERMINATE);
break;
case RAW_SESSSETUP_SMB2:
req->status = NT_STATUS_INTERNAL_ERROR;
break;
}
failed:
return smbcli_request_destroy(req);
}
/*
Perform a session setup (sync interface)
*/
NTSTATUS smb_raw_sesssetup(struct smbcli_session *session,
TALLOC_CTX *mem_ctx, union smb_sesssetup *parms)
{
struct smbcli_request *req = smb_raw_sesssetup_send(session, parms);
return smb_raw_sesssetup_recv(req, mem_ctx, parms);
}
/****************************************************************************
Send a ulogoff (async send)
*****************************************************************************/
struct smbcli_request *smb_raw_ulogoff_send(struct smbcli_session *session)
{
struct smbcli_request *req;
SETUP_REQUEST_SESSION(SMBulogoffX, 2, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
return NULL;
}
return req;
}
/****************************************************************************
Send a ulogoff (sync interface)
*****************************************************************************/
NTSTATUS smb_raw_ulogoff(struct smbcli_session *session)
{
struct smbcli_request *req = smb_raw_ulogoff_send(session);
return smbcli_request_simple_recv(req);
}
/****************************************************************************
Send a exit (async send)
*****************************************************************************/
struct smbcli_request *smb_raw_exit_send(struct smbcli_session *session)
{
struct smbcli_request *req;
SETUP_REQUEST_SESSION(SMBexit, 0, 0);
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
return NULL;
}
return req;
}
/****************************************************************************
Send a exit (sync interface)
*****************************************************************************/
NTSTATUS smb_raw_exit(struct smbcli_session *session)
{
struct smbcli_request *req = smb_raw_exit_send(session);
return smbcli_request_simple_recv(req);
}
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