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/*
Unix SMB/CIFS implementation.
SMB client tree 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 "libcli/smb_composite/smb_composite.h"
#include "param/param.h"
#define SETUP_REQUEST_TREE(cmd, wct, buflen) do { \
req = smbcli_request_setup(tree, cmd, wct, buflen); \
if (!req) return NULL; \
} while (0)
/****************************************************************************
Initialize the tree context
****************************************************************************/
struct smbcli_tree *smbcli_tree_init(struct smbcli_session *session,
TALLOC_CTX *parent_ctx, bool primary)
{
struct smbcli_tree *tree;
tree = talloc_zero(parent_ctx, struct smbcli_tree);
if (!tree) {
return NULL;
}
if (primary) {
tree->session = talloc_steal(tree, session);
} else {
tree->session = talloc_reference(tree, session);
}
return tree;
}
/****************************************************************************
Send a tconX (async send)
****************************************************************************/
struct smbcli_request *smb_raw_tcon_send(struct smbcli_tree *tree,
union smb_tcon *parms)
{
struct smbcli_request *req = NULL;
switch (parms->tcon.level) {
case RAW_TCON_TCON:
SETUP_REQUEST_TREE(SMBtcon, 0, 0);
smbcli_req_append_ascii4(req, parms->tcon.in.service, STR_ASCII);
smbcli_req_append_ascii4(req, parms->tcon.in.password,STR_ASCII);
smbcli_req_append_ascii4(req, parms->tcon.in.dev, STR_ASCII);
break;
case RAW_TCON_TCONX:
SETUP_REQUEST_TREE(SMBtconX, 4, 0);
SSVAL(req->out.vwv, VWV(0), 0xFF);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), parms->tconx.in.flags);
SSVAL(req->out.vwv, VWV(3), parms->tconx.in.password.length);
smbcli_req_append_blob(req, &parms->tconx.in.password);
smbcli_req_append_string(req, parms->tconx.in.path, STR_TERMINATE | STR_UPPER);
smbcli_req_append_string(req, parms->tconx.in.device, STR_TERMINATE | STR_ASCII);
break;
case RAW_TCON_SMB2:
return NULL;
}
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
return NULL;
}
return req;
}
/****************************************************************************
Send a tconX (async recv)
****************************************************************************/
NTSTATUS smb_raw_tcon_recv(struct smbcli_request *req, TALLOC_CTX *mem_ctx,
union smb_tcon *parms)
{
uint8_t *p;
if (!smbcli_request_receive(req) ||
smbcli_request_is_error(req)) {
goto failed;
}
switch (parms->tcon.level) {
case RAW_TCON_TCON:
SMBCLI_CHECK_WCT(req, 2);
parms->tcon.out.max_xmit = SVAL(req->in.vwv, VWV(0));
parms->tcon.out.tid = SVAL(req->in.vwv, VWV(1));
break;
case RAW_TCON_TCONX:
ZERO_STRUCT(parms->tconx.out);
parms->tconx.out.tid = SVAL(req->in.hdr, HDR_TID);
if (req->in.wct >= 4) {
parms->tconx.out.options = SVAL(req->in.vwv, VWV(3));
}
/* output is actual service name */
p = req->in.data;
if (!p) break;
p += smbcli_req_pull_string(req, mem_ctx, &parms->tconx.out.dev_type,
p, -1, STR_ASCII | STR_TERMINATE);
p += smbcli_req_pull_string(req, mem_ctx, &parms->tconx.out.fs_type,
p, -1, STR_TERMINATE);
break;
case RAW_TCON_SMB2:
req->status = NT_STATUS_INTERNAL_ERROR;
break;
}
failed:
return smbcli_request_destroy(req);
}
/****************************************************************************
Send a tconX (sync interface)
****************************************************************************/
NTSTATUS smb_raw_tcon(struct smbcli_tree *tree, TALLOC_CTX *mem_ctx,
union smb_tcon *parms)
{
struct smbcli_request *req = smb_raw_tcon_send(tree, parms);
return smb_raw_tcon_recv(req, mem_ctx, parms);
}
/****************************************************************************
Send a tree disconnect.
****************************************************************************/
NTSTATUS smb_tree_disconnect(struct smbcli_tree *tree)
{
struct smbcli_request *req;
if (!tree) return NT_STATUS_OK;
req = smbcli_request_setup(tree, SMBtdis, 0, 0);
if (smbcli_request_send(req)) {
(void) smbcli_request_receive(req);
}
return smbcli_request_destroy(req);
}
/*
a convenient function to establish a smbcli_tree from scratch
*/
NTSTATUS smbcli_tree_full_connection(TALLOC_CTX *parent_ctx,
struct smbcli_tree **ret_tree,
const char *dest_host, int port,
const char *service, const char *service_type,
struct cli_credentials *credentials,
struct event_context *ev)
{
struct smb_composite_connect io;
NTSTATUS status;
TALLOC_CTX *tmp_ctx = talloc_new(parent_ctx);
if (!tmp_ctx) {
return NT_STATUS_NO_MEMORY;
}
io.in.dest_host = dest_host;
io.in.port = port;
io.in.called_name = strupper_talloc(tmp_ctx, dest_host);
io.in.service = service;
io.in.service_type = service_type;
io.in.credentials = credentials;
io.in.fallback_to_anonymous = false;
io.in.workgroup = lp_workgroup(global_loadparm);
status = smb_composite_connect(&io, parent_ctx, ev);
if (NT_STATUS_IS_OK(status)) {
*ret_tree = io.out.tree;
}
talloc_free(tmp_ctx);
return status;
}
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