Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 942 insertions, 0 deletions

diff --git a/source3/smbd/smb1_ipc.c b/source3/smbd/smb1_ipc.c
new file mode 100644
index 0000000..66e58e6
--- /dev/null
+++ b/source3/smbd/smb1_ipc.c
@@ -0,0 +1,942 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Inter-process communication and named pipe handling
+   Copyright (C) Andrew Tridgell 1992-1998
+
+   SMB Version handling
+   Copyright (C) John H Terpstra 1995-1998
+
+   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/>.
+   */
+/*
+   This file handles the named pipe and mailslot calls
+   in the SMBtrans protocol
+   */
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include "smbd/globals.h"
+#include "smbprofile.h"
+#include "rpc_server/srv_pipe_hnd.h"
+#include "source3/lib/substitute.h"
+
+#define NERR_notsupported 50
+
+static void api_no_reply(connection_struct *conn, struct smb_request *req);
+
+/*******************************************************************
+ copies parameters and data, as needed, into the smb buffer
+
+ *both* the data and params sections should be aligned.  this
+ is fudged in the rpc pipes by 
+ at present, only the data section is.  this may be a possible
+ cause of some of the ipc problems being experienced.  lkcl26dec97
+
+ ******************************************************************/
+
+static void copy_trans_params_and_data(char *outbuf, int align,
+				char *rparam, int param_offset, int param_len,
+				char *rdata, int data_offset, int data_len)
+{
+	char *copy_into = smb_buf(outbuf);
+
+	if(param_len < 0)
+		param_len = 0;
+
+	if(data_len < 0)
+		data_len = 0;
+
+	DEBUG(5,("copy_trans_params_and_data: params[%d..%d] data[%d..%d] (align %d)\n",
+			param_offset, param_offset + param_len,
+			data_offset , data_offset  + data_len,
+			align));
+
+	*copy_into = '\0';
+
+	copy_into += 1;
+
+	if (param_len)
+		memcpy(copy_into, &rparam[param_offset], param_len);
+
+	copy_into += param_len;
+	if (align) {
+		memset(copy_into, '\0', align);
+	}
+
+	copy_into += align;
+
+	if (data_len )
+		memcpy(copy_into, &rdata[data_offset], data_len);
+}
+
+/****************************************************************************
+ Send a trans reply.
+ ****************************************************************************/
+
+void send_trans_reply(connection_struct *conn,
+		      struct smb_request *req,
+		      char *rparam, int rparam_len,
+		      char *rdata, int rdata_len,
+		      bool buffer_too_large)
+{
+	int this_ldata,this_lparam;
+	int tot_data_sent = 0;
+	int tot_param_sent = 0;
+	int align;
+
+	int ldata  = rdata  ? rdata_len : 0;
+	int lparam = rparam ? rparam_len : 0;
+	struct smbXsrv_connection *xconn = req->xconn;
+	int max_send = xconn->smb1.sessions.max_send;
+	/* HACK: make sure we send at least 128 byte in one go */
+	int hdr_overhead = SMB_BUFFER_SIZE_MIN - 128;
+
+	if (buffer_too_large)
+		DEBUG(5,("send_trans_reply: buffer %d too large\n", ldata ));
+
+	this_lparam = MIN(lparam,max_send - hdr_overhead);
+	this_ldata  = MIN(ldata,max_send - (hdr_overhead+this_lparam));
+
+	align = ((this_lparam)%4);
+
+	reply_smb1_outbuf(req, 10, 1+align+this_ldata+this_lparam);
+
+	/*
+	 * We might have SMBtranss in req which was transferred to the outbuf,
+	 * fix that.
+	 */
+	SCVAL(req->outbuf, smb_com, SMBtrans);
+
+	copy_trans_params_and_data((char *)req->outbuf, align,
+				rparam, tot_param_sent, this_lparam,
+				rdata, tot_data_sent, this_ldata);
+
+	SSVAL(req->outbuf,smb_vwv0,lparam);
+	SSVAL(req->outbuf,smb_vwv1,ldata);
+	SSVAL(req->outbuf,smb_vwv3,this_lparam);
+	SSVAL(req->outbuf,smb_vwv4,
+	      smb_offset(smb_buf(req->outbuf)+1, req->outbuf));
+	SSVAL(req->outbuf,smb_vwv5,0);
+	SSVAL(req->outbuf,smb_vwv6,this_ldata);
+	SSVAL(req->outbuf,smb_vwv7,
+	      smb_offset(smb_buf(req->outbuf)+1+this_lparam+align,
+			 req->outbuf));
+	SSVAL(req->outbuf,smb_vwv8,0);
+	SSVAL(req->outbuf,smb_vwv9,0);
+
+	if (buffer_too_large) {
+		error_packet_set((char *)req->outbuf, ERRDOS, ERRmoredata,
+				 STATUS_BUFFER_OVERFLOW, __LINE__, __FILE__);
+	}
+
+	show_msg((char *)req->outbuf);
+	if (!smb1_srv_send(xconn, (char *)req->outbuf,
+			  true, req->seqnum+1,
+			  IS_CONN_ENCRYPTED(conn), &req->pcd)) {
+		exit_server_cleanly("send_trans_reply: smb1_srv_send failed.");
+	}
+
+	TALLOC_FREE(req->outbuf);
+
+	tot_data_sent = this_ldata;
+	tot_param_sent = this_lparam;
+
+	while (tot_data_sent < ldata || tot_param_sent < lparam)
+	{
+		this_lparam = MIN(lparam-tot_param_sent,
+				  max_send - hdr_overhead);
+		this_ldata  = MIN(ldata -tot_data_sent,
+				  max_send - (hdr_overhead+this_lparam));
+
+		if(this_lparam < 0)
+			this_lparam = 0;
+
+		if(this_ldata < 0)
+			this_ldata = 0;
+
+		align = (this_lparam%4);
+
+		reply_smb1_outbuf(req, 10, 1+align+this_ldata+this_lparam);
+
+		/*
+		 * We might have SMBtranss in req which was transferred to the
+		 * outbuf, fix that.
+		 */
+		SCVAL(req->outbuf, smb_com, SMBtrans);
+
+		copy_trans_params_and_data((char *)req->outbuf, align,
+					   rparam, tot_param_sent, this_lparam,
+					   rdata, tot_data_sent, this_ldata);
+
+		SSVAL(req->outbuf,smb_vwv0,lparam);
+		SSVAL(req->outbuf,smb_vwv1,ldata);
+
+		SSVAL(req->outbuf,smb_vwv3,this_lparam);
+		SSVAL(req->outbuf,smb_vwv4,
+		      smb_offset(smb_buf(req->outbuf)+1,req->outbuf));
+		SSVAL(req->outbuf,smb_vwv5,tot_param_sent);
+		SSVAL(req->outbuf,smb_vwv6,this_ldata);
+		SSVAL(req->outbuf,smb_vwv7,
+		      smb_offset(smb_buf(req->outbuf)+1+this_lparam+align,
+				 req->outbuf));
+		SSVAL(req->outbuf,smb_vwv8,tot_data_sent);
+		SSVAL(req->outbuf,smb_vwv9,0);
+
+		if (buffer_too_large) {
+			error_packet_set((char *)req->outbuf,
+					 ERRDOS, ERRmoredata,
+					 STATUS_BUFFER_OVERFLOW,
+					 __LINE__, __FILE__);
+		}
+
+		show_msg((char *)req->outbuf);
+		if (!smb1_srv_send(xconn, (char *)req->outbuf,
+				  true, req->seqnum+1,
+				  IS_CONN_ENCRYPTED(conn), &req->pcd))
+			exit_server_cleanly("send_trans_reply: smb1_srv_send "
+					    "failed.");
+
+		tot_data_sent  += this_ldata;
+		tot_param_sent += this_lparam;
+		TALLOC_FREE(req->outbuf);
+	}
+}
+
+/****************************************************************************
+ Start the first part of an RPC reply which began with an SMBtrans request.
+****************************************************************************/
+
+struct dcerpc_cmd_state {
+	struct fake_file_handle *handle;
+	uint8_t *data;
+	size_t num_data;
+	size_t max_read;
+};
+
+static void api_dcerpc_cmd_write_done(struct tevent_req *subreq);
+static void api_dcerpc_cmd_read_done(struct tevent_req *subreq);
+
+static void api_dcerpc_cmd(connection_struct *conn, struct smb_request *req,
+			   files_struct *fsp, uint8_t *data, size_t length,
+			   size_t max_read)
+{
+	struct tevent_req *subreq;
+	struct dcerpc_cmd_state *state;
+	bool busy;
+
+	if (!fsp_is_np(fsp)) {
+		api_no_reply(conn, req);
+		return;
+	}
+
+	/*
+	 * Trans requests are only allowed
+	 * if no other Trans or Read is active
+	 */
+	busy = np_read_in_progress(fsp->fake_file_handle);
+	if (busy) {
+		reply_nterror(req, NT_STATUS_PIPE_BUSY);
+		return;
+	}
+
+	state = talloc(req, struct dcerpc_cmd_state);
+	if (state == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+	req->async_priv = state;
+
+	state->handle = fsp->fake_file_handle;
+
+	/*
+	 * This memdup severely sucks. But doing it properly essentially means
+	 * to rewrite lanman.c, something which I don't really want to do now.
+	 */
+	state->data = (uint8_t *)talloc_memdup(state, data, length);
+	if (state->data == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+	state->num_data = length;
+	state->max_read = max_read;
+
+	subreq = np_write_send(state, req->sconn->ev_ctx, state->handle,
+			       state->data, length);
+	if (subreq == NULL) {
+		TALLOC_FREE(state);
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+	tevent_req_set_callback(subreq, api_dcerpc_cmd_write_done,
+				talloc_move(conn, &req));
+}
+
+static void api_dcerpc_cmd_write_done(struct tevent_req *subreq)
+{
+	struct smb_request *req = tevent_req_callback_data(
+		subreq, struct smb_request);
+	struct dcerpc_cmd_state *state = talloc_get_type_abort(
+		req->async_priv, struct dcerpc_cmd_state);
+	NTSTATUS status;
+	ssize_t nwritten = -1;
+
+	status = np_write_recv(subreq, &nwritten);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		NTSTATUS old = status;
+		status = nt_status_np_pipe(old);
+
+		DEBUG(10, ("Could not write to pipe: %s%s%s\n",
+			   nt_errstr(old),
+			   NT_STATUS_EQUAL(old, status)?"":" => ",
+			   NT_STATUS_EQUAL(old, status)?"":nt_errstr(status)));
+		reply_nterror(req, status);
+		goto send;
+	}
+	if (nwritten != state->num_data) {
+		status = NT_STATUS_PIPE_NOT_AVAILABLE;
+		DEBUG(10, ("Could not write to pipe: (%d/%d) => %s\n",
+			   (int)state->num_data,
+			   (int)nwritten, nt_errstr(status)));
+		reply_nterror(req, status);
+		goto send;
+	}
+
+	state->data = talloc_realloc(state, state->data, uint8_t,
+					   state->max_read);
+	if (state->data == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		goto send;
+	}
+
+	subreq = np_read_send(state, req->sconn->ev_ctx,
+			      state->handle, state->data, state->max_read);
+	if (subreq == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		goto send;
+	}
+	tevent_req_set_callback(subreq, api_dcerpc_cmd_read_done, req);
+	return;
+
+ send:
+	if (!smb1_srv_send(
+		    req->xconn, (char *)req->outbuf,
+		    true, req->seqnum+1,
+		    IS_CONN_ENCRYPTED(req->conn) || req->encrypted,
+		    &req->pcd)) {
+		exit_server_cleanly("api_dcerpc_cmd_write_done: "
+				    "smb1_srv_send failed.");
+	}
+	TALLOC_FREE(req);
+}
+
+static void api_dcerpc_cmd_read_done(struct tevent_req *subreq)
+{
+	struct smb_request *req = tevent_req_callback_data(
+		subreq, struct smb_request);
+	struct dcerpc_cmd_state *state = talloc_get_type_abort(
+		req->async_priv, struct dcerpc_cmd_state);
+	NTSTATUS status;
+	ssize_t nread;
+	bool is_data_outstanding;
+
+	status = np_read_recv(subreq, &nread, &is_data_outstanding);
+	TALLOC_FREE(subreq);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		NTSTATUS old = status;
+		status = nt_status_np_pipe(old);
+
+		DEBUG(10, ("Could not read from to pipe: %s%s%s\n",
+			   nt_errstr(old),
+			   NT_STATUS_EQUAL(old, status)?"":" => ",
+			   NT_STATUS_EQUAL(old, status)?"":nt_errstr(status)));
+		reply_nterror(req, status);
+
+		if (!smb1_srv_send(req->xconn, (char *)req->outbuf,
+				  true, req->seqnum+1,
+				  IS_CONN_ENCRYPTED(req->conn)
+				  ||req->encrypted, &req->pcd)) {
+			exit_server_cleanly("api_dcerpc_cmd_read_done: "
+					    "smb1_srv_send failed.");
+		}
+		TALLOC_FREE(req);
+		return;
+	}
+
+	send_trans_reply(req->conn, req, NULL, 0, (char *)state->data, nread,
+			 is_data_outstanding);
+	TALLOC_FREE(req);
+}
+
+/****************************************************************************
+ WaitNamedPipeHandleState 
+****************************************************************************/
+
+static void api_WNPHS(connection_struct *conn, struct smb_request *req,
+		      struct files_struct *fsp, char *param, int param_len)
+{
+	if (!param || param_len < 2) {
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	DEBUG(4,("WaitNamedPipeHandleState priority %x\n",
+		 (int)SVAL(param,0)));
+
+	send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+}
+
+
+/****************************************************************************
+ SetNamedPipeHandleState 
+****************************************************************************/
+
+static void api_SNPHS(connection_struct *conn, struct smb_request *req,
+		      struct files_struct *fsp, char *param, int param_len)
+{
+	if (!param || param_len < 2) {
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	DEBUG(4,("SetNamedPipeHandleState to code %x\n", (int)SVAL(param,0)));
+
+	send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+}
+
+
+/****************************************************************************
+ When no reply is generated, indicate unsupported.
+ ****************************************************************************/
+
+static void api_no_reply(connection_struct *conn, struct smb_request *req)
+{
+	char rparam[4];
+
+	/* unsupported */
+	SSVAL(rparam,0,NERR_notsupported);
+	SSVAL(rparam,2,0); /* converter word */
+
+	DEBUG(3,("Unsupported API fd command\n"));
+
+	/* now send the reply */
+	send_trans_reply(conn, req, rparam, 4, NULL, 0, False);
+
+	return;
+}
+
+/****************************************************************************
+ Handle remote api calls delivered to a named pipe already opened.
+ ****************************************************************************/
+
+static void api_fd_reply(connection_struct *conn, uint64_t vuid,
+			 struct smb_request *req,
+			 uint16_t *setup, uint8_t *data, char *params,
+			 int suwcnt, int tdscnt, int tpscnt,
+			 int mdrcnt, int mprcnt)
+{
+	struct files_struct *fsp;
+	int pnum;
+	int subcommand;
+
+	DEBUG(5,("api_fd_reply\n"));
+
+	/* First find out the name of this file. */
+	if (suwcnt != 2) {
+		DEBUG(0,("Unexpected named pipe transaction.\n"));
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	/* Get the file handle and hence the file name. */
+	/* 
+	 * NB. The setup array has already been transformed
+	 * via SVAL and so is in host byte order.
+	 */
+	pnum = ((int)setup[1]) & 0xFFFF;
+	subcommand = ((int)setup[0]) & 0xFFFF;
+
+	fsp = file_fsp(req, pnum);
+
+	if (!fsp_is_np(fsp)) {
+		if (subcommand == TRANSACT_WAITNAMEDPIPEHANDLESTATE) {
+			/* Win9x does this call with a unicode pipe name, not a pnum. */
+			/* Just return success for now... */
+			DEBUG(3,("Got TRANSACT_WAITNAMEDPIPEHANDLESTATE on text pipe name\n"));
+			send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+			return;
+		}
+
+		DEBUG(1,("api_fd_reply: INVALID PIPE HANDLE: %x\n", pnum));
+		reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+		return;
+	}
+
+	if (vuid != fsp->vuid) {
+		DEBUG(1, ("Got pipe request (pnum %x) using invalid VUID %llu, "
+			  "expected %llu\n", pnum, (unsigned long long)vuid,
+			  (unsigned long long)fsp->vuid));
+		reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+		return;
+	}
+
+	DEBUG(3,("Got API command 0x%x on pipe \"%s\" (pnum %x)\n",
+		 subcommand, fsp_str_dbg(fsp), pnum));
+
+	DEBUG(10, ("api_fd_reply: p:%p max_trans_reply: %d\n", fsp, mdrcnt));
+
+	switch (subcommand) {
+	case TRANSACT_DCERPCCMD: {
+		/* dce/rpc command */
+		api_dcerpc_cmd(conn, req, fsp, (uint8_t *)data, tdscnt,
+			       mdrcnt);
+		break;
+	}
+	case TRANSACT_WAITNAMEDPIPEHANDLESTATE:
+		/* Wait Named Pipe Handle state */
+		api_WNPHS(conn, req, fsp, params, tpscnt);
+		break;
+	case TRANSACT_SETNAMEDPIPEHANDLESTATE:
+		/* Set Named Pipe Handle state */
+		api_SNPHS(conn, req, fsp, params, tpscnt);
+		break;
+	default:
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+}
+
+/****************************************************************************
+ Handle named pipe commands.
+****************************************************************************/
+
+static void named_pipe(connection_struct *conn, uint64_t vuid,
+		       struct smb_request *req,
+		       const char *name, uint16_t *setup,
+		       char *data, char *params,
+		       int suwcnt, int tdscnt,int tpscnt,
+		       int msrcnt, int mdrcnt, int mprcnt)
+{
+	DEBUG(3,("named pipe command on <%s> name\n", name));
+
+	if (strequal(name,"LANMAN")) {
+		api_reply(conn, vuid, req,
+			  data, params,
+			  tdscnt, tpscnt,
+			  mdrcnt, mprcnt);
+		return;
+	}
+
+	if (strequal(name,"WKSSVC") ||
+	    strequal(name,"SRVSVC") ||
+	    strequal(name,"WINREG") ||
+	    strequal(name,"SAMR") ||
+	    strequal(name,"LSARPC")) {
+
+		DEBUG(4,("named pipe command from Win95 (wow!)\n"));
+
+		api_fd_reply(conn, vuid, req,
+			     setup, (uint8_t *)data, params,
+			     suwcnt, tdscnt, tpscnt,
+			     mdrcnt, mprcnt);
+		return;
+	}
+
+	if (strlen(name) < 1) {
+		api_fd_reply(conn, vuid, req,
+			     setup, (uint8_t *)data,
+			     params, suwcnt, tdscnt,
+			     tpscnt, mdrcnt, mprcnt);
+		return;
+	}
+
+	if (setup)
+		DEBUG(3,("unknown named pipe: setup 0x%X setup1=%d\n",
+			 (int)setup[0],(int)setup[1]));
+
+	reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
+	return;
+}
+
+static void handle_trans(connection_struct *conn, struct smb_request *req,
+			 struct trans_state *state)
+{
+	char *local_machine_name;
+	int name_offset = 0;
+
+	DEBUG(3,("trans <%s> data=%u params=%u setup=%u\n",
+		 state->name,(unsigned int)state->total_data,(unsigned int)state->total_param,
+		 (unsigned int)state->setup_count));
+
+	/*
+	 * WinCE wierdness....
+	 */
+
+	local_machine_name = talloc_asprintf(state, "\\%s\\",
+					     get_local_machine_name());
+
+	if (local_machine_name == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+
+	if (strnequal(state->name, local_machine_name,
+		      strlen(local_machine_name))) {
+		name_offset = strlen(local_machine_name)-1;
+	}
+
+	if (!strnequal(&state->name[name_offset], "\\PIPE",
+		       strlen("\\PIPE"))) {
+		reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
+		return;
+	}
+
+	name_offset += strlen("\\PIPE");
+
+	/* Win9x weirdness.  When talking to a unicode server Win9x
+	   only sends \PIPE instead of \PIPE\ */
+
+	if (state->name[name_offset] == '\\')
+		name_offset++;
+
+	DEBUG(5,("calling named_pipe\n"));
+	named_pipe(conn, state->vuid, req,
+		   state->name+name_offset,
+		   state->setup,state->data,
+		   state->param,
+		   state->setup_count,state->total_data,
+		   state->total_param,
+		   state->max_setup_return,
+		   state->max_data_return,
+		   state->max_param_return);
+
+	if (state->close_on_completion) {
+		struct smbXsrv_tcon *tcon;
+		NTSTATUS status;
+
+		tcon = conn->tcon;
+		req->conn = NULL;
+		conn = NULL;
+
+		/*
+		 * TODO: cancel all outstanding requests on the tcon
+		 */
+		status = smbXsrv_tcon_disconnect(tcon, state->vuid);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0, ("handle_trans: "
+				  "smbXsrv_tcon_disconnect() failed: %s\n",
+				  nt_errstr(status)));
+			/*
+			 * If we hit this case, there is something completely
+			 * wrong, so we better disconnect the transport connection.
+			 */
+			exit_server(__location__ ": smbXsrv_tcon_disconnect failed");
+			return;
+		}
+
+		TALLOC_FREE(tcon);
+	}
+
+	return;
+}
+
+/****************************************************************************
+ Reply to a SMBtrans.
+ ****************************************************************************/
+
+void reply_trans(struct smb_request *req)
+{
+	connection_struct *conn = req->conn;
+	unsigned int dsoff;
+	unsigned int dscnt;
+	unsigned int psoff;
+	unsigned int pscnt;
+	struct trans_state *state;
+	NTSTATUS result;
+
+	START_PROFILE(SMBtrans);
+
+	if (req->wct < 14) {
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		END_PROFILE(SMBtrans);
+		return;
+	}
+
+	dsoff = SVAL(req->vwv+12, 0);
+	dscnt = SVAL(req->vwv+11, 0);
+	psoff = SVAL(req->vwv+10, 0);
+	pscnt = SVAL(req->vwv+9, 0);
+
+	result = allow_new_trans(conn->pending_trans, req->mid);
+	if (!NT_STATUS_IS_OK(result)) {
+		DEBUG(2, ("Got invalid trans request: %s\n",
+			  nt_errstr(result)));
+		reply_nterror(req, result);
+		END_PROFILE(SMBtrans);
+		return;
+	}
+
+	if ((state = talloc_zero(conn, struct trans_state)) == NULL) {
+		DEBUG(0, ("talloc failed\n"));
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		END_PROFILE(SMBtrans);
+		return;
+	}
+
+	state->cmd = SMBtrans;
+
+	state->mid = req->mid;
+	state->vuid = req->vuid;
+	state->setup_count = CVAL(req->vwv+13, 0);
+	state->setup = NULL;
+	state->total_param = SVAL(req->vwv+0, 0);
+	state->param = NULL;
+	state->total_data = SVAL(req->vwv+1, 0);
+	state->data = NULL;
+	state->max_param_return = SVAL(req->vwv+2, 0);
+	state->max_data_return = SVAL(req->vwv+3, 0);
+	state->max_setup_return = CVAL(req->vwv+4, 0);
+	state->close_on_completion = BITSETW(req->vwv+5, 0);
+	state->one_way = BITSETW(req->vwv+5, 1);
+
+	srvstr_pull_req_talloc(state, req, &state->name, req->buf,
+			       STR_TERMINATE);
+
+	if ((dscnt > state->total_data) || (pscnt > state->total_param) ||
+			!state->name)
+		goto bad_param;
+
+	if (state->total_data)  {
+
+		if (smb_buffer_oob(state->total_data, 0, dscnt)
+		    || smb_buffer_oob(smb_len(req->inbuf), dsoff, dscnt)) {
+			goto bad_param;
+		}
+
+		/* Can't use talloc here, the core routines do realloc on the
+		 * params and data. Out of paranoia, 100 bytes too many. */
+		state->data = (char *)SMB_MALLOC(state->total_data+100);
+		if (state->data == NULL) {
+			DEBUG(0,("reply_trans: data malloc fail for %u "
+				 "bytes !\n", (unsigned int)state->total_data));
+			TALLOC_FREE(state);
+			reply_nterror(req, NT_STATUS_NO_MEMORY);
+			END_PROFILE(SMBtrans);
+			return;
+		}
+		/* null-terminate the slack space */
+		memset(&state->data[state->total_data], 0, 100);
+
+		memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
+	}
+
+	if (state->total_param) {
+
+		if (smb_buffer_oob(state->total_param, 0, pscnt)
+		    || smb_buffer_oob(smb_len(req->inbuf), psoff, pscnt)) {
+			goto bad_param;
+		}
+
+		/* Can't use talloc here, the core routines do realloc on the
+		 * params and data. Out of paranoia, 100 bytes too many */
+		state->param = (char *)SMB_MALLOC(state->total_param+100);
+		if (state->param == NULL) {
+			DEBUG(0,("reply_trans: param malloc fail for %u "
+				 "bytes !\n", (unsigned int)state->total_param));
+			SAFE_FREE(state->data);
+			TALLOC_FREE(state);
+			reply_nterror(req, NT_STATUS_NO_MEMORY);
+			END_PROFILE(SMBtrans);
+			return;
+		} 
+		/* null-terminate the slack space */
+		memset(&state->param[state->total_param], 0, 100);
+
+		memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
+	}
+
+	state->received_data  = dscnt;
+	state->received_param = pscnt;
+
+	if (state->setup_count) {
+		unsigned int i;
+
+		/*
+		 * No overflow possible here, state->setup_count is an
+		 * unsigned int, being filled by a single byte from
+		 * CVAL(req->vwv+13, 0) above. The cast in the comparison
+		 * below is not necessary, it's here to clarify things. The
+		 * validity of req->vwv and req->wct has been checked in
+		 * init_smb1_request already.
+		 */
+		if (state->setup_count + 14 > (unsigned int)req->wct) {
+			goto bad_param;
+		}
+
+		if((state->setup = talloc_array(
+			    state, uint16_t, state->setup_count)) == NULL) {
+			DEBUG(0,("reply_trans: setup malloc fail for %u "
+				 "bytes !\n", (unsigned int)
+				 (state->setup_count * sizeof(uint16_t))));
+			SAFE_FREE(state->data);
+			SAFE_FREE(state->param);
+			TALLOC_FREE(state);
+			reply_nterror(req, NT_STATUS_NO_MEMORY);
+			END_PROFILE(SMBtrans);
+			return;
+		} 
+
+		for (i=0;i<state->setup_count;i++) {
+			state->setup[i] = SVAL(req->vwv + 14 + i, 0);
+		}
+	}
+
+	state->received_param = pscnt;
+
+	if ((state->received_param != state->total_param) ||
+	    (state->received_data != state->total_data)) {
+		DLIST_ADD(conn->pending_trans, state);
+
+		/* We need to send an interim response then receive the rest
+		   of the parameter/data bytes */
+		reply_smb1_outbuf(req, 0, 0);
+		show_msg((char *)req->outbuf);
+		END_PROFILE(SMBtrans);
+		return;
+	}
+
+	talloc_steal(talloc_tos(), state);
+
+	handle_trans(conn, req, state);
+
+	SAFE_FREE(state->data);
+	SAFE_FREE(state->param);
+	TALLOC_FREE(state);
+
+	END_PROFILE(SMBtrans);
+	return;
+
+  bad_param:
+
+	DEBUG(0,("reply_trans: invalid trans parameters\n"));
+	SAFE_FREE(state->data);
+	SAFE_FREE(state->param);
+	TALLOC_FREE(state);
+	END_PROFILE(SMBtrans);
+	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+	return;
+}
+
+/****************************************************************************
+ Reply to a secondary SMBtrans.
+ ****************************************************************************/
+
+void reply_transs(struct smb_request *req)
+{
+	connection_struct *conn = req->conn;
+	unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
+	struct trans_state *state;
+
+	START_PROFILE(SMBtranss);
+
+	show_msg((const char *)req->inbuf);
+
+	if (req->wct < 8) {
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		END_PROFILE(SMBtranss);
+		return;
+	}
+
+	for (state = conn->pending_trans; state != NULL;
+	     state = state->next) {
+		if (state->mid == req->mid) {
+			break;
+		}
+	}
+
+	if ((state == NULL) || (state->cmd != SMBtrans)) {
+		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		END_PROFILE(SMBtranss);
+		return;
+	}
+
+	/* Revise total_params and total_data in case they have changed
+	 * downwards */
+
+	if (SVAL(req->vwv+0, 0) < state->total_param)
+		state->total_param = SVAL(req->vwv+0, 0);
+	if (SVAL(req->vwv+1, 0) < state->total_data)
+		state->total_data = SVAL(req->vwv+1, 0);
+
+	pcnt = SVAL(req->vwv+2, 0);
+	poff = SVAL(req->vwv+3, 0);
+	pdisp = SVAL(req->vwv+4, 0);
+
+	dcnt = SVAL(req->vwv+5, 0);
+	doff = SVAL(req->vwv+6, 0);
+	ddisp = SVAL(req->vwv+7, 0);
+
+	state->received_param += pcnt;
+	state->received_data += dcnt;
+
+	if ((state->received_data > state->total_data) ||
+	    (state->received_param > state->total_param))
+		goto bad_param;
+
+	if (pcnt) {
+		if (smb_buffer_oob(state->total_param, pdisp, pcnt)
+		    || smb_buffer_oob(smb_len(req->inbuf), poff, pcnt)) {
+			goto bad_param;
+		}
+		memcpy(state->param+pdisp,smb_base(req->inbuf)+poff,pcnt);
+	}
+
+	if (dcnt) {
+		if (smb_buffer_oob(state->total_data, ddisp, dcnt)
+		    || smb_buffer_oob(smb_len(req->inbuf), doff, dcnt)) {
+			goto bad_param;
+		}
+		memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
+	}
+
+	if ((state->received_param < state->total_param) ||
+	    (state->received_data < state->total_data)) {
+		END_PROFILE(SMBtranss);
+		return;
+	}
+
+	talloc_steal(talloc_tos(), state);
+
+	handle_trans(conn, req, state);
+
+	DLIST_REMOVE(conn->pending_trans, state);
+	SAFE_FREE(state->data);
+	SAFE_FREE(state->param);
+	TALLOC_FREE(state);
+
+	END_PROFILE(SMBtranss);
+	return;
+
+  bad_param:
+
+	DEBUG(0,("reply_transs: invalid trans parameters\n"));
+	DLIST_REMOVE(conn->pending_trans, state);
+	SAFE_FREE(state->data);
+	SAFE_FREE(state->param);
+	TALLOC_FREE(state);
+	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+	END_PROFILE(SMBtranss);
+	return;
+}