@sharelist/node-smb-server
Version:
Sharelist SMB Server Implementation Base On node-smb-server
205 lines (183 loc) • 8.32 kB
JavaScript
/*
* Copyright 2015 Adobe Systems Incorporated. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
;
var put = require('put');
var logger = require('winston').loggers.get('smb');
var async = require('async');
var ntstatus = require('../../../ntstatus');
var SMB = require('../../constants');
var utils = require('../../../utils');
/**
* TRANS2_SET_PATH_INFORMATION (0x0006): This transaction is used to set the standard and
* extended attribute information of a specific file or directory on the server.
*
* @param {Object} msg - an SMB message object
* @param {Number} commandId - the command id
* @param {Buffer} commandParams - the command parameters
* @param {Buffer} commandData - the command data
* @param {Number} commandParamsOffset - the command parameters offset within the SMB
* @param {Number} commandDataOffset - the command data offset within the SMB
* @param {Object} connection - an SMBConnection instance
* @param {Object} server - an SMBServer instance
* @param {Function} cb callback called with the command's result
* @param {Object} cb.result - an object with the command's result params and data
* or null if the handler already sent the response and
* no further processing is required by the caller
* @param {Number} cb.result.status
* @param {Buffer} cb.result.params
* @param {Buffer} cb.result.data
*/
function handle(msg, commandId, commandParams, commandData, commandParamsOffset, commandDataOffset, connection, server, cb) {
var off = 0;
var informationLevel = commandParams.readUInt16LE(off);
off += 2;
off += 4; // Reserved
off += utils.calculatePadLength(commandParamsOffset + off, 2); // pad to align subsequent unicode strings (utf16le) on word boundary
var fileName = utils.extractUnicodeBytes(commandParams, off).toString('utf16le');
logger.debug('[%s] informationLevel: %s, fileName: %s', SMB.TRANS2_SUBCOMMAND_TO_STRING[commandId].toUpperCase(), SMB.SET_INFORMATION_LEVEL_TO_STRING[informationLevel], fileName);
var result;
if (informationLevel !== SMB.SET_INFO_STANDARD && !msg.header.flags.pathnames.long.supported) {
result = {
status: ntstatus.STATUS_INVALID_PARAMETER,
params: utils.EMPTY_BUFFER,
data: utils.EMPTY_BUFFER
};
process.nextTick(function () { cb(result); });
return;
}
var tree = server.getTree(msg.header.tid);
if (!tree) {
result = {
status: ntstatus.STATUS_SMB_BAD_TID,
params: utils.EMPTY_BUFFER,
data: utils.EMPTY_BUFFER
};
process.nextTick(function () { cb(result); });
return;
}
function getFile(callback) {
tree.open(fileName, callback);
}
function processFile(file, callback) {
var eaErrorOffset = new Buffer([ 0x00, 0x00 ]);
var msLastAccess, msCreation, msLastWrite, msChange;
switch (informationLevel) {
case SMB.SET_INFO_STANDARD:
off = 0;
var smbDate = commandData.readUInt16LE(off);
off += 2;
var smbTime = commandData.readUInt16LE(off);
off += 2;
msCreation = utils.legacySMBToSystemDateTime(smbDate, smbTime);
smbDate = commandData.readUInt16LE(off);
off += 2;
smbTime = commandData.readUInt16LE(off);
off += 2;
msLastAccess = utils.legacySMBToSystemDateTime(smbDate, smbTime);
smbDate = commandData.readUInt16LE(off);
off += 2;
smbTime = commandData.readUInt16LE(off);
off += 2;
msLastWrite = utils.legacySMBToSystemDateTime(smbDate, smbTime);
// set lastModified
file.setLastModifiedTime(msLastWrite);
// todo implement according to https://msdn.microsoft.com/en-us/library/ff469956.aspx
// set created
// set lastAccessed
logger.debug('[%s] informationLevel: %s, fileName: %s, creationTime: %d, lastAccessTime: %d, lastWriteTime: %d', SMB.TRANS2_SUBCOMMAND_TO_STRING[commandId].toUpperCase(), SMB.SET_INFORMATION_LEVEL_TO_STRING[informationLevel] || '0x' + informationLevel.toString(16), fileName, msCreation, msLastAccess, msLastWrite);
result = {
status: ntstatus.STATUS_SUCCESS,
params: eaErrorOffset, // EaErrorOffset
data: utils.EMPTY_BUFFER
};
callback(null, file, result);
return;
case SMB.SET_INFO_EAS:
var eaList = utils.parseFEAList(commandData, 0);
if (eaList && eaList.length) {
// we're currently not supporting EAs
eaErrorOffset.writeUInt16LE(eaList[0].offset, 0);
}
result = {
status: ntstatus.STATUS_SUCCESS,
params: eaErrorOffset, // EaErrorOffset
data: utils.EMPTY_BUFFER
};
callback(null, file, result);
return;
case SMB.SET_FILE_BASIC_INFO:
case SMB.FILE_BASIC_INFORMATION:
// CIFS spec: SET_FILE_BASIC_INFO is not supported for TRANS2_SET_PATH_INFORMATION...
// on OS-X the timestamp value is sometimes -2082844800000 (1904-01-01T00:00:00.000Z) which is the epoch used by GetDateTime() ... ?!
off = 0;
msCreation = utils.readTimestamp(commandData, off);
off += 8;
msLastAccess = utils.readTimestamp(commandData, off);
off += 8;
msLastWrite = utils.readTimestamp(commandData, off);
off += 8;
msChange = utils.readTimestamp(commandData, off);
off += 8;
var extFileAttributes = commandData.readUInt32LE(off);
off += 4;
// todo implement according to https://msdn.microsoft.com/en-us/library/ff469851.aspx
if (msCreation && msCreation !== -1) {
// set created
}
if (msLastAccess && msLastAccess !== -1) {
// set lastAccessed
}
if (msLastWrite && msLastWrite !== -1) {
// set lastModified
file.setLastModifiedTime(msLastWrite);
}
if (msChange && msChange !== -1) {
// set changed
}
logger.debug('[%s] informationLevel: %s, fileName: %s, creationTime: %d, lastAccessTime: %d, lastWriteTime: %d, changeTime: %d, extFileAttributes: %s', SMB.TRANS2_SUBCOMMAND_TO_STRING[commandId].toUpperCase(), SMB.SET_INFORMATION_LEVEL_TO_STRING[informationLevel] || '0x' + informationLevel.toString(16), fileName, msCreation, msLastAccess, msLastWrite, msChange, extFileAttributes.toString(2));
result = {
status: ntstatus.STATUS_SUCCESS,
params: eaErrorOffset, // EaErrorOffset
data: utils.EMPTY_BUFFER
};
callback(null, file, result);
return;
default:
logger.error('[%s] encountered unsupported or unknown informationLevel %s, fileName: %s', SMB.TRANS2_SUBCOMMAND_TO_STRING[commandId].toUpperCase(), SMB.SET_INFORMATION_LEVEL_TO_STRING[informationLevel] || '0x' + informationLevel.toString(16), fileName);
result = {
status: ntstatus.STATUS_OS2_INVALID_LEVEL,
params: utils.EMPTY_BUFFER,
data: utils.EMPTY_BUFFER
};
callback(null, file, result);
return;
}
}
function closeFile(file, result, callback) {
tree.closeFile(file.getId(), function (ignored) {
callback(null, result);
});
}
async.waterfall([ getFile, processFile, closeFile ], function (err, result) {
if (err) {
logger.error('[%s] informationLevel: %s, fileName: %s failed', SMB.TRANS2_SUBCOMMAND_TO_STRING[commandId].toUpperCase(), SMB.SET_INFORMATION_LEVEL_TO_STRING[informationLevel], fileName, err);
cb({
status: err.status || ntstatus.STATUS_UNSUCCESSFUL,
params: utils.EMPTY_BUFFER,
data: utils.EMPTY_BUFFER
});
} else {
cb(result);
}
});
}
module.exports = handle;