From 26ecaa32266e0c8699f280dd190811c310f2939c Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Tue, 3 Feb 2004 05:47:36 +0000 Subject: - move all SMB server stuff to smb_server/* and create the SMB server subsystem - remove unused XML and MYSQL configure tests metze (This used to be commit 956d212c83d8ebd8e31ec109f17dc2105ca72c30) --- source4/smb_server/nttrans.c | 273 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 source4/smb_server/nttrans.c (limited to 'source4/smb_server/nttrans.c') diff --git a/source4/smb_server/nttrans.c b/source4/smb_server/nttrans.c new file mode 100644 index 0000000000..13afdeeea2 --- /dev/null +++ b/source4/smb_server/nttrans.c @@ -0,0 +1,273 @@ +/* + Unix SMB/CIFS implementation. + NT transaction handling + Copyright (C) Andrew Tridgell 2003 + Copyright (C) James J Myers 2003 + + 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. +*/ +/* + This file handles the parsing of transact2 requests +*/ + +#include "includes.h" + + +#define CHECK_MIN_BLOB_SIZE(blob, size) do { \ + if ((blob)->length < (size)) { \ + return NT_STATUS_INFO_LENGTH_MISMATCH; \ + }} while (0) + + +/* setup a nttrans reply, given the data and params sizes */ +static void nttrans_setup_reply(struct request_context *req, + struct smb_nttrans *trans, + uint16 param_size, uint16 data_size, + uint16 setup_count) +{ + trans->out.setup_count = setup_count; + if (setup_count != 0) { + trans->out.setup = talloc_zero(req->mem_ctx, sizeof(uint16) * setup_count); + } + trans->out.params = data_blob_talloc(req->mem_ctx, NULL, param_size); + trans->out.data = data_blob_talloc(req->mem_ctx, NULL, data_size); +} + + +/* parse NTTRANS_CREATE request + */ +static NTSTATUS nttrans_create(struct request_context *req, + struct smb_nttrans *trans) +{ + return NT_STATUS_FOOBAR; +} + +/* parse NTTRANS_RENAME request + */ +static NTSTATUS nttrans_rename(struct request_context *req, + struct smb_nttrans *trans) +{ + return NT_STATUS_FOOBAR; +} +/* parse NTTRANS_IOCTL request + */ +static NTSTATUS nttrans_ioctl(struct request_context *req, + struct smb_nttrans *trans) +{ + union smb_ioctl nt; + uint32 function; + uint16 fnum; + uint8 filter; + BOOL fsctl; + DATA_BLOB *blob; + + /* should have at least 4 setup words */ + if (trans->in.setup_count != 4) { + return NT_STATUS_INVALID_PARAMETER; + } + + function = IVAL(trans->in.setup, 0); + fnum = SVAL(trans->in.setup, 4); + fsctl = CVAL(trans->in.setup, 6); + filter = CVAL(trans->in.setup, 7); + + blob = &trans->in.data; + + nt.ntioctl.level = RAW_IOCTL_NTIOCTL; + nt.ntioctl.in.fnum = fnum; + nt.ntioctl.in.function = function; + nt.ntioctl.in.fsctl = fsctl; + nt.ntioctl.in.filter = filter; + + nttrans_setup_reply(req, trans, 0, 0, 1); + trans->out.setup[0] = 0; + + return req->conn->ntvfs_ops->ioctl(req, &nt); +} + +/* + backend for nttrans requests +*/ +static NTSTATUS nttrans_backend(struct request_context *req, + struct smb_nttrans *trans) +{ + DEBUG(9,("nttrans_backend: setup_count=%d function=%d\n", + trans->in.setup_count, trans->in.function)); + /* must have at least one setup word */ + if (trans->in.setup_count < 1) { + return NT_STATUS_FOOBAR; + } + + /* the nttrans command is in function */ + switch (trans->in.function) { + case NT_TRANSACT_CREATE: + return nttrans_create(req, trans); + case NT_TRANSACT_IOCTL: + return nttrans_ioctl(req, trans); + case NT_TRANSACT_RENAME: + return nttrans_rename(req, trans); + } + + /* an unknown nttrans command */ + return NT_STATUS_FOOBAR; +} + + +/**************************************************************************** + Reply to an SMBnttrans request +****************************************************************************/ +void reply_nttrans(struct request_context *req) +{ + struct smb_nttrans trans; + int i; + uint16 param_ofs, data_ofs; + uint16 param_count, data_count; + uint16 params_left, data_left; + uint16 param_total, data_total; + char *params, *data; + NTSTATUS status; + + /* parse request */ + if (req->in.wct < 19) { + req_reply_error(req, NT_STATUS_FOOBAR); + return; + } + + trans.in.max_setup = CVAL(req->in.vwv, 0); + param_total = IVAL(req->in.vwv, 3); + data_total = IVAL(req->in.vwv, 7); + trans.in.max_param = IVAL(req->in.vwv, 11); + trans.in.max_data = IVAL(req->in.vwv, 15); + param_count = IVAL(req->in.vwv, 19); + param_ofs = IVAL(req->in.vwv, 23); + data_count = IVAL(req->in.vwv, 27); + data_ofs = IVAL(req->in.vwv, 31); + trans.in.setup_count = CVAL(req->in.vwv, 35); + trans.in.function = SVAL(req->in.vwv, 36); + + if (req->in.wct != 19 + trans.in.setup_count) { + req_reply_dos_error(req, ERRSRV, ERRerror); + return; + } + + /* parse out the setup words */ + trans.in.setup = talloc(req->mem_ctx, trans.in.setup_count * sizeof(uint16)); + if (!trans.in.setup) { + req_reply_error(req, NT_STATUS_NO_MEMORY); + return; + } + for (i=0;iin.vwv, VWV(19+i)); + } + + if (!req_pull_blob(req, req->in.hdr + param_ofs, param_count, &trans.in.params) || + !req_pull_blob(req, req->in.hdr + data_ofs, data_count, &trans.in.data)) { + req_reply_error(req, NT_STATUS_FOOBAR); + return; + } + + /* is it a partial request? if so, then send a 'send more' message */ + if (param_total > param_count || + data_total > data_count) { + DEBUG(0,("REWRITE: not handling partial nttrans requests!\n")); + return; + } + + /* its a full request, give it to the backend */ + status = nttrans_backend(req, &trans); + + if (!NT_STATUS_IS_OK(status)) { + req_reply_error(req, status); + return; + } + + params_left = trans.out.params.length; + data_left = trans.out.data.length; + params = trans.out.params.data; + data = trans.out.data.data; + + req->control_flags |= REQ_CONTROL_PROTECTED; + + /* we need to divide up the reply into chunks that fit into + the negotiated buffer size */ + do { + uint16 this_data, this_param, max_bytes; + uint_t align1 = 1, align2 = (params_left ? 2 : 0); + + req_setup_reply(req, 18 + trans.out.setup_count, 0); + + max_bytes = req_max_data(req) - (align1 + align2); + + this_param = params_left; + if (this_param > max_bytes) { + this_param = max_bytes; + } + max_bytes -= this_param; + + this_data = data_left; + if (this_data > max_bytes) { + this_data = max_bytes; + } + + req_grow_data(req, this_param + this_data + (align1 + align2)); + + SIVAL(req->out.vwv, 3, trans.out.params.length); + SIVAL(req->out.vwv, 7, trans.out.data.length); + + SIVAL(req->out.vwv, 11, this_param); + SIVAL(req->out.vwv, 15, align1 + PTR_DIFF(req->out.data, req->out.hdr)); + SIVAL(req->out.vwv, 19, PTR_DIFF(params, trans.out.params.data)); + + SIVAL(req->out.vwv, 23, this_data); + SIVAL(req->out.vwv, 27, align1 + align2 + + PTR_DIFF(req->out.data + this_param, req->out.hdr)); + SIVAL(req->out.vwv, 31, PTR_DIFF(data, trans.out.data.data)); + + SCVAL(req->out.vwv, 35, trans.out.setup_count); + for (i=0;iout.vwv, VWV(18+i)+1, trans.out.setup[i]); + } + + memset(req->out.data, 0, align1); + if (this_param != 0) { + memcpy(req->out.data + align1, params, this_param); + } + memset(req->out.data+this_param+align1, 0, align2); + if (this_data != 0) { + memcpy(req->out.data+this_param+align1+align2, data, this_data); + } + + params_left -= this_param; + data_left -= this_data; + params += this_param; + data += this_data; + + /* if this is the last chunk then the request can be destroyed */ + if (params_left == 0 && data_left == 0) { + req->control_flags &= ~REQ_CONTROL_PROTECTED; + } + + req_send_reply(req); + } while (params_left != 0 || data_left != 0); +} + + +/**************************************************************************** + Reply to an SMBnttranss request +****************************************************************************/ +void reply_nttranss(struct request_context *req) +{ + req_reply_error(req, NT_STATUS_FOOBAR); +} -- cgit