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/*
Unix SMB/CIFS implementation.
SMB client tree context management functions
Copyright (C) Andrew Tridgell 1994-1998
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/composite/composite.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)
{
struct smbcli_tree *tree;
tree = talloc_zero(session, struct smbcli_tree);
if (!tree) {
return NULL;
}
tree->session = talloc_reference(tree, session);
return tree;
}
/****************************************************************************
Send a tconX (async send)
****************************************************************************/
struct smbcli_request *smb_tree_connect_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;
}
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
return NULL;
}
return req;
}
/****************************************************************************
Send a tconX (async recv)
****************************************************************************/
NTSTATUS smb_tree_connect_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;
}
failed:
return smbcli_request_destroy(req);
}
/****************************************************************************
Send a tconX (sync interface)
****************************************************************************/
NTSTATUS smb_tree_connect(struct smbcli_tree *tree, TALLOC_CTX *mem_ctx,
union smb_tcon *parms)
{
struct smbcli_request *req = smb_tree_connect_send(tree, parms);
return smb_tree_connect_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)) {
smbcli_request_receive(req);
}
return smbcli_request_destroy(req);
}
/*
a convenient function to establish a smbcli_tree from scratch, using reasonable default
parameters
*/
NTSTATUS smbcli_tree_full_connection(TALLOC_CTX *parent_ctx,
struct smbcli_tree **ret_tree,
const char *my_name,
const char *dest_host, int port,
const char *service, const char *service_type,
const char *user, const char *domain,
const char *password)
{
struct smbcli_socket *sock;
struct smbcli_transport *transport;
struct smbcli_session *session;
struct smbcli_tree *tree;
NTSTATUS status;
struct nmb_name calling;
struct nmb_name called;
union smb_sesssetup setup;
union smb_tcon tcon;
TALLOC_CTX *mem_ctx;
char *in_path = NULL;
*ret_tree = NULL;
sock = smbcli_sock_init(parent_ctx);
if (!sock) {
return NT_STATUS_NO_MEMORY;
}
/* open a TCP socket to the server */
if (!smbcli_sock_connect_byname(sock, dest_host, port)) {
talloc_free(sock);
DEBUG(2,("Failed to establish socket connection - %s\n", strerror(errno)));
return NT_STATUS_UNSUCCESSFUL;
}
transport = smbcli_transport_init(sock);
talloc_free(sock);
if (!transport) {
return NT_STATUS_NO_MEMORY;
}
/* send a NBT session request, if applicable */
make_nmb_name(&calling, my_name, 0x0);
choose_called_name(&called, dest_host, 0x20);
if (!smbcli_transport_connect(transport, &calling, &called)) {
talloc_free(transport);
return NT_STATUS_UNSUCCESSFUL;
}
/* negotiate protocol options with the server */
status = smb_raw_negotiate(transport, lp_maxprotocol());
if (!NT_STATUS_IS_OK(status)) {
talloc_free(transport);
return status;
}
session = smbcli_session_init(transport);
talloc_free(transport);
if (!session) {
return NT_STATUS_NO_MEMORY;
}
/* prepare a session setup to establish a security context */
setup.generic.level = RAW_SESSSETUP_GENERIC;
setup.generic.in.sesskey = transport->negotiate.sesskey;
setup.generic.in.capabilities = transport->negotiate.capabilities;
if (!user || !user[0]) {
setup.generic.in.password = NULL;
setup.generic.in.user = "";
setup.generic.in.domain = "";
} else {
setup.generic.in.password = password;
setup.generic.in.user = user;
setup.generic.in.domain = domain;
}
mem_ctx = talloc_init("tcon");
if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
status = smb_raw_session_setup(session, mem_ctx, &setup);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(session);
talloc_free(mem_ctx);
return status;
}
session->vuid = setup.generic.out.vuid;
tree = smbcli_tree_init(session);
talloc_free(session);
if (!tree) {
talloc_free(mem_ctx);
return NT_STATUS_NO_MEMORY;
}
/* connect to a share using a tree connect */
tcon.generic.level = RAW_TCON_TCONX;
tcon.tconx.in.flags = 0;
tcon.tconx.in.password = data_blob(NULL, 0);
asprintf(&in_path, "\\\\%s\\%s", dest_host, service);
tcon.tconx.in.path = in_path;
if (!service_type) {
if (strequal(service, "IPC$"))
service_type = "IPC";
else
service_type = "?????";
}
tcon.tconx.in.device = service_type;
status = smb_tree_connect(tree, mem_ctx, &tcon);
SAFE_FREE(in_path);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(tree);
talloc_free(mem_ctx);
return status;
}
tree->tid = tcon.tconx.out.tid;
if (tcon.tconx.out.dev_type) {
tree->device = talloc_strdup(tree, tcon.tconx.out.dev_type);
}
if (tcon.tconx.out.fs_type) {
tree->fs_type = talloc_strdup(tree, tcon.tconx.out.fs_type);
}
talloc_free(mem_ctx);
*ret_tree = tree;
return NT_STATUS_OK;
}
/*
a convenient function to establish a smbcli_tree from scratch
*/
NTSTATUS async_smbcli_tree_full_connection(TALLOC_CTX *parent_ctx,
struct smbcli_tree **ret_tree,
const char *my_name,
const char *dest_host, int port,
const char *service, const char *service_type,
const char *user, const char *domain,
const char *password)
{
struct smb_composite_connect io;
NTSTATUS status;
io.in.dest_host = dest_host;
io.in.port = port;
io.in.called_name = dest_host;
io.in.calling_name = my_name;
io.in.service = service;
io.in.service_type = service_type;
io.in.user = user;
io.in.domain = domain;
io.in.password = password;
status = smb_composite_connect(&io, parent_ctx);
if (NT_STATUS_IS_OK(status)) {
*ret_tree = io.out.tree;
}
return status;
}
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