///<summary>
/// Lists all computers of the specified type or types that are visible
/// in the specified domain. It may also enumerate domains.
///</summary>
///<param name = "domain">The name of the workgroup in which to enumerate computers
/// of the specified type or types. If domain is null, servers
/// are enumerated for the current domain of the computer</param>
///<param name = "types">The type or types o fcoimputer to enumerate. Computers that match
/// at least one of the specified types are returned (SV_*)</param>
///<returns><code>System.String</code> (sorted)</returns>
public string[] ListServersNames(string domain, uint types)
{
lock (this)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Info, "listServersNames");
}
var param = new MarshalBuffer(100);
var data = new MarshalBuffer(1000);
// Level 0
DoNetServerEnum2(domain, types, 0, param, data);
int pos = 0;
pos += 2;
// converter
int converter = param.GetShortAt(pos);
pos += 2;
// number of entries
int counter = param.GetShortAt(pos);
pos += 2;
int maxcounter = param.GetShortAt(pos);
pos += 2;
if (maxcounter > counter)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Warning, "The buffer for NetServerEnum2 was too small.");
}
}
/*
* struct SERVER_INFO_0 {
* char sv0_name[16];
* };
*/
var names = new string[counter];
for (int i = 0; i < counter; i++)
{
names[i] = data.GetZtAsciiStringAt(pos, i * 16);
}
Util.Util.SortStrings(names);
return(names);
} // lock
}
/// <summary>
/// Changes password on the server
/// </summary>
/// <param name = "user">user name</param>
/// <param name = "oldpwd">old password</param>
/// <param name = "newpwd">new password</param>
public void ChangePassword(string user, string oldpwd, string newpwd)
{
lock (this)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Info, "SamOEMChangePassword");
}
var param = new MarshalBuffer(100);
int pos = 0;
pos += param.SetShortAt(pos, SamOEMChangePassword);
// parameter descriptor string
pos += param.SetZtAsciiStringAt(pos, "zsT");
// the data descriptor string for the (returned) data which = null string
pos += param.SetZtAsciiStringAt(pos, "B516B16");
// user
pos += param.SetZtAsciiStringAt(pos, user);
// data size
pos += param.SetShortAt(pos, 532);
param.Size = pos;
byte[] data = CifsLogin.GetChangePasswordData(oldpwd, newpwd);
SendTransaction(null, "\\PIPE\\LANMAN", param, data, data.Length);
var rdata = new MarshalBuffer(100);
receiveTransaction(param, rdata);
pos = 0;
int error = param.GetShortAt(pos);
// ignore more data
if (error != 0 && error != 234)
{
throw CifsIoException.getLMException(error);
}
} // lock
}
private void DoNetServerEnum2(string domain, uint types, int level,
MarshalBuffer param, MarshalBuffer data)
{
int pos = 0;
pos += param.SetShortAt(pos, NetShareEnum2);
// parameter descriptor string
pos += param.SetZtAsciiStringAt(pos, "WrLehDz");
// the data descriptor string for the (returned) data
switch (level)
{
case 0:
pos += param.SetZtAsciiStringAt(pos, "B16");
break;
case 1:
pos += param.SetZtAsciiStringAt(pos, "B16BBDz");
break;
default:
Debug.WriteLine(Debug.Error, "Invalid NetServerEnum2 level");
throw new ApplicationException("doNetServerEnum2");
}
// corresponding to the "W": Level 1
pos += param.SetShortAt(pos, level);
// buffer size
pos += param.SetShortAt(pos, fReturnBufferSize);
if (domain == null)
{
types |= CifsServerInfo.SV_TYPE_DOMAIN_ENUM;
}
// select types
pos += param.SetIntAt(pos, (Int32)types);
// domain
if (domain != null)
{
pos += param.SetZtAsciiStringAt(pos, domain);
}
else
{
pos += param.SetByteAt(pos, 0);
}
param.Size = pos;
SendTransaction(null, "\\PIPE\\LANMAN", param, null, 0);
receiveTransaction(param, data);
int error = param.GetShortAt(0);
// ignore more data
if (error != 0 && error != 234)
{
throw CifsIoException.getLMException(error);
}
}
// Several functions relating to printing have been ommited for now
///<summary>
/// Lists all computers of the specified type or types that are visible
/// in the specified domain. It may also enumerate domains.
///</summary>
///<param name = "domain">The name of the workgroup in which to enumerate computers
/// of the specified type or types. If domain is nul, servers
/// are enumerated for the current domain of the computer</param>
///<param name = "types">The type or types of computer to enumerate. Computers that
/// match at least one of the specified types are returned (SV_*)</param>
public CifsServerInfo[] ListServersInfo(string domain, uint types)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Info, "listServersInfo");
}
var param = new MarshalBuffer(100);
var data = new MarshalBuffer(1000);
DoNetServerEnum2(domain, types, 1, param, data);
int pos = 0;
pos += 2;
// converter
int converter = param.GetShortAt(pos);
pos += 2;
// number of entries
int counter = param.GetShortAt(pos);
pos += 2;
int maxcounter = param.GetShortAt(pos);
pos += 2;
if (maxcounter > counter)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Warning, "The buffer for NetServerEnum2 was too small.");
}
}
/*
* struct SERVER_INFO_1 {
* char sv1_name[16];
* char sv1_version_major;
* char sv1_version_minor;
* unsigned long sv1_type;
* char *sv1_comment_or_master_browser;
* };
*/
var infolist = new CifsServerInfo[counter];
pos = 0;
for (int i = 0; i < counter; i++)
{
var info = new CifsServerInfo();
info.ComputerName = data.GetZtAsciiStringAt(pos, 16);
pos += 16;
info.MajorVersion = data.GetByteAt(pos) & 0xff;
pos += 1;
info.MinorVersion = data.GetByteAt(pos) & 0xff;
pos += 1;
info.ServerType = (UInt32)(data.GetIntAt(pos));
pos += 4;
int rptr = (data.GetIntAt(pos) & 0xffff);
pos += 4;
if (rptr != 0)
{
info.Comment = data.GetZtAsciiStringAt(rptr - converter, 255);
}
infolist[i] = info;
}
return(infolist);
}
/// <summary>
/// Returns the list of shares on the computer
/// </summary>
/// <param name = "sort">if true, the names are sorted</param>
/// <returns>list of <code>CifsShareInfo</code> objects</returns>
public CifsShareInfo[] ListSharesInfo(bool sort)
{
lock (this)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Info, "IPC:NetShareEnum");
}
var param = new MarshalBuffer(100);
int pos = 0;
pos += param.SetShortAt(pos, NetShareEnum);
// parameter descriptor string
pos += param.SetZtAsciiStringAt(pos, "WrLeh");
// The data descriptor string for the (returned) data which is "B13BWz"
pos += param.SetZtAsciiStringAt(pos, "B13BWz");
// corresponding to the "W"
pos += param.SetShortAt(pos, 1);
// buffer size
pos += param.SetShortAt(pos, fReturnBufferSize);
param.Size = pos;
SendTransaction(null, "\\PIPE\\LANMAN", param, null, 0);
var data = new MarshalBuffer(1000);
receiveTransaction(param, data);
pos = 0;
int error = param.GetShortAt(pos);
// ignore more data
if (error != 0 && error != 234)
{
throw CifsIoException.getLMException(error);
}
pos += 2;
// converter
int converter = param.GetShortAt(pos);
pos += 2;
// number of entries
int counter = param.GetShortAt(pos);
pos += 2;
// number max of entries
int maxcounter = param.GetShortAt(pos);
/*
* The SHARE_INFO_1 structure is defined as:
*
* struct SHARE_INFO_1 {
* char shi1_netname[13]
* char shi1_pad;
* unsigned short shi1_type
* char *shi1_remark;
* }
*
* where:
*
* shi1_netname contains a null terminated ASCII string that
* specifies the share name of the resource.
*
* shi1_pad aligns the next data strructure element to a word
* boundary.
*
* shi1_type contains an integer that specifies the type of the
* shared resource.
*
*
* shi1_remark points to a null terminated ASCII string that contains
* a comment abthe shared resource. The value for shi1_remark is null
* for ADMIN$ and IPC$ share names. The shi1_remark pointer is a 32
* bit pointer. The higher 16 bits need to be ignored. The converter
* word returned in the parameters section needs to be subtracted
* from the lower 16 bits to calculate an offset into the return
* buffer where this ASCII string resides.
*
* In case there are multiple SHARE_INFO_1 data structures to return,
* the server may put all these fixed length structures in the return
* buffer, leave some space and then put all the variable length data
* (the actual value of the shi1_remark strings) at the end of the
* buffer.
*/
if (Debug.DebugOn)
{
data.debug("NetShareEnum data");
}
var result = new CifsShareInfo[counter];
CifsShareInfo info;
pos = 0;
for (int i = 0; i < counter; i++)
{
info = new CifsShareInfo(fShare.HostName);
// shil_netname[13]
info.ShareName = data.GetZtAsciiStringAt(pos, 13);
pos += 13;
pos += 1; // pad
// shil_type
info.ShareType = data.GetShortAt(pos);
pos += 2;
// shil_remark
int rptr = (data.GetIntAt(pos) & 0xffff);
pos += 4;
info.Remark = data.GetZtAsciiStringAt(rptr - converter, 255);
result[i] = info;
}
if (sort)
{
Util.Util.Sort(result, GetShareInfoComparator());
}
return(result);
} // lock
}
/// <summary>
/// Returns detailed information about a particular user
/// </summary>
/// <param name = "user">User Name</param>
/// <returns>user information</returns>
public CifsUserInfo GetUserInfo(string user)
{
if (Debug.DebugOn)
{
Debug.WriteLine(Debug.Info, "IPC:NetUserGetInfo");
}
var param = new MarshalBuffer(100);
int pos = 0;
pos += param.SetShortAt(pos, NetUserGetInfo);
// parameter descriptor string
pos += param.SetZtAsciiStringAt(pos, "zWrLh");
// he data descriptor string for the (returned) data which is "B21BzzzWDDzzDDWWzWzDWb21W"
pos += param.SetZtAsciiStringAt(pos, "B21BzzzWDDzzDDWWzWzDWb21W");
// user
pos += param.SetZtAsciiStringAt(pos, user);
// corresponding to the "W"
pos += param.SetShortAt(pos, 11);
// buffer size
pos += param.SetShortAt(pos, fReturnBufferSize);
param.Size = pos;
SendTransaction(null, "\\PIPE\\LANMAN", param, null, 0);
var data = new MarshalBuffer(1000);
receiveTransaction(param, data);
pos = 0;
int error = param.GetShortAt(pos);
// ignore more data
if (error != 0 && error != 234)
{
throw CifsIoException.getLMException(error);
}
pos += 2;
// converter
int converter = param.GetShortAt(pos);
pos += 2;
/* A 16 bit number representing the total number of available bytes.
* This has meaning only if the return status is NERR_Success or
* ERROR_MORE_DATA. Upon success, this number indicates the number of
* useful bytes available. Upon failure, this indicates how big the
* receive buffer needs to be.
*/
int bytes = param.GetShortAt(pos);
pos += 2;
/*
* struct user_info_11 {
* char usri11_name[21];
* char usri11_pad;
* char *usri11_comment;
* char *usri11_usr_comment;
* char *usri11_full_name;
* unsigned short usri11_priv;
* unsigned long usri11_auth_flags;
* long usri11_password_age;
* char *usri11_homedir;
* char *usri11_parms;
* long usri11_last_logon;
* long usri11_last_logoff;
* unsigned short usri11_bad_pw_count;
* unsigned short usri11_num_logons;
* char *usri11_logon_server;
* unsigned short usri11_country_code;
* char *usri11_workstations;
* unsigned long usri11_max_storage;
* unsigned short usri11_units_per_week;
* unsigned char *usri11_logon_hours;
* unsigned short usri11_code_page;
*
* };
*/
if (Debug.DebugOn)
{
data.debug("NetUserGetInfo data");
}
var info = new CifsUserInfo();
pos = 0;
// user name for which information is retireved
info.UserName = data.GetZtAsciiStringAt(pos, 21);
pos += 21;
// pad
pos++;
//comment
int ptr = data.GetIntAt(pos) & 0xffff;
pos += 4;
info.Comment = data.GetZtAsciiStringAt(ptr - converter, bytes);
// comment about user
ptr = data.GetIntAt(pos) & 0xffff;
pos += 4;
info.UserComment = data.GetZtAsciiStringAt(ptr - converter, bytes);
// full name of the user
ptr = data.GetIntAt(pos) & 0xffff;
pos += 4;
info.FullUserName = data.GetZtAsciiStringAt(ptr - converter, bytes);
// level of the privilege assigned to the user
info.UserPrivilege = data.GetShortAt(pos);
pos += 2;
// account operator privileges.
info.OperatorPrivileges = data.GetIntAt(pos);
pos += 4;
// how many seconds have elapsed since the password was last changed.
info.PasswordAge = data.GetIntAt(pos) & 0xffffffff;
pos += 4;
// path name of the user's home directory.
ptr = data.GetIntAt(pos) & 0xffff;
pos += 4;
info.HomeDir = data.GetZtAsciiStringAt(ptr - converter, bytes);
// skip usri11_parms
pos += 4;
// last logon
info.fLastLogon = data.GetIntAt(pos) & 0xffffffff;
pos += 4;
// last logon
info.fLastLogoff = data.GetIntAt(pos) & 0xffffffff;
pos += 4;
// bad logons
info.BadLogons = data.GetShortAt(pos);
pos += 2;
// num logons
info.Logons = data.GetShortAt(pos);
pos += 2;
// logon server
ptr = data.GetIntAt(pos) & 0xffff;
pos += 4;
info.LogonServer = data.GetZtAsciiStringAt(ptr - converter, bytes);
return(info);
}
/// <summary>
/// Set up the session
/// </summary>
/// <returns>true if ok, false if bad password</returns>
private bool DoSessionSetup()
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "SMB_COM_SESSION_SETUP_ANDX");
byte[] case_sensitive_passwd = null;
byte[] case_insensitive_passwd = null;
string string_passwd = fShare.Login.Password;
SetupSmbMessage(fMsg, SmbMessage.SMB_COM_SESSION_SETUP_ANDX);
if (Debug.DebugOn && Debug.DebugLevel >= Debug.Buffer)
{
Debug.WriteLine(Debug.Buffer, "New SMB Msg:");
Debug.WriteLine(Debug.Buffer, fMsg.getMessageBuffer(), 0, fMsg.getMessageSize());
}
if ((fSecurityMode & SM_ENCRYPT_PASSWORDS) != 0)
{
case_sensitive_passwd = CifsLogin.GetNtAuthData(string_passwd, fEncryptionKey);
case_insensitive_passwd = CifsLogin.GetLmAuthData(string_passwd, fEncryptionKey);
}
else
{
case_sensitive_passwd = CifsLogin.GetPasswordBytesUnicode(string_passwd);
case_insensitive_passwd = CifsLogin.GetPasswordBytesAscii(string_passwd);
}
/*
UCHAR WordCount; Count of parameter words = 13
0: UCHAR AndXCommand; Secondary (X) command; 0xFF = none
1: UCHAR AndXReserved; Reserved (must be 0)
2: USHORT AndXOffset; Offset to next command WordCount
4: USHORT MaxBufferSize; Client's maximum buffer size
6: USHORT MaxMpxCount; Actual maximum multiplexed pending requests
8: USHORT VcNumber; 0 = first (only), nonzero=additional VC number
10:ULONG SessionKey; Session key (valid iff VcNumber != 0)
14:USHORT CaseInsensitivePasswordLength; Account password size, ANSI
16:USHORT CaseSensitivePasswordLength; Account password size, Unicode
18:ULONG Reserved; must be 0
22:ULONG Capabilities; Client capabilities
USHORT ByteCount; Count of data bytes; min = 0
UCHAR CaseInsensitivePassword[]; Account Password, ANSI
UCHAR CaseSensitivePassword[]; Account Password, Unicode
STRING AccountName[]; Account Name, Unicode
STRING PrimaryDomain[]; Client's primary domain, Unicode
STRING NativeOS[]; Client's native operating system, Unicode
STRING NativeLanMan[]; Client's native LAN Manager type, Unicode
*/
fMsg.setWordCount(13);
// AndXCommand
fMsg.setByteParameterAt(0, 0xFF);
// AndXReserved
fMsg.setByteParameterAt(1, 0);
// AndXOffset
fMsg.setShortParameterAt(2, 0);
// MaxBufferSize
fMsg.setShortParameterAt(4, CIFS_MAX_BUFFER_SIZE);
// MaxMpxCount
fMsg.setShortParameterAt(6, 1);
// VcNumber
fMsg.setShortParameterAt(8, 0);
// SessionKey
fMsg.setIntParameterAt(10, 0);
// CaseInsensitivePasswordLength
fMsg.setShortParameterAt(14, case_insensitive_passwd.Length);
// CaseSensitivePasswordLength
fMsg.setShortParameterAt(16, case_sensitive_passwd.Length);
// Reserved
fMsg.setIntParameterAt(18, 0);
// Capabilities
fMsg.setIntParameterAt(22, CAP_UNICODE | CAP_NT_SMBS);
var data = new MarshalBuffer(200);
int pos = 0;
Debug.WriteLine(Debug.Buffer, "Before Ins Pass:"******"After Ins Pass:"******"After Sens Pass:"******"After Acct Name:");
Debug.WriteLine(Debug.Buffer, data.GetBytes(), 0, data.Size);
// Primary domain
//string pdomain = Environment.GetEnvironmentVariable("CIFSDOMAIN"); // Can this be done better?
string pdomain = "?"; // testing -- This works, but the above breaks... why?
pos += data.SetZtAsciiStringAt(pos, pdomain);
// Native OS
pos += data.SetZtAsciiStringAt(pos, ".NET CIFS Client");
data.Size = pos;
Debug.WriteLine(Debug.Buffer, "Final data:");
Debug.WriteLine(Debug.Buffer, data.GetBytes(), 0, data.Size);
fMsg.setContent(data);
if (Debug.DebugOn && Debug.DebugLevel >= Debug.Buffer)
{
Debug.WriteLine(Debug.Buffer, "Msg to send");
Debug.WriteLine(Debug.Buffer, fMsg.getMessageBuffer(), 0, fMsg.getMessageSize());
}
fMsg.SendAndRecieve(fNBTSession, fMsg);
if (!fMsg.isResponse())
throw new CifsIoException("PE3");
int errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
{
int errorcode = fMsg.getErrorCode();
if ((errorclass == CifsIoException.ERROR_SRV &&
errorcode == CifsIoException.SRV_BAD_PASSWORD) ||
(errorclass == CifsIoException.ERROR_DOS &&
errorcode == CifsIoException.DOS_NO_ACCESS))
return false;
throw new CifsIoException(errorclass, errorcode);
}
fUID = fMsg.getUID();
/*
if(Debug.debugOn && Debug.debugLevel >= Debug.INFO)
Debug.WriteLine("UID = " + fMsg.getUID());
*/
if (fMsg.getWordCount() != 3)
return true;
/*
UCHAR WordCount; Count of parameter words = 3
0: UCHAR AndXCommand; Secondary (X) command; 0xFF = none
1: UCHAR AndXReserved; Reserved (must be 0)
2: USHORT AndXOffset; Offset to next command WordCount
4: USHORT Action; Request mode:
bit0 = logged in as GUEST
6: USHORT SecurityBlobLength length of Security Blob that follows in a later field
8: USHORT ByteCount; Count of data bytes
UCHAR SecurityBlob[] SecurityBlob of length specified in field SecurityBlobLength
STRING NativeOS[]; Server's native operating system
STRING NativeLanMan[]; Server's native LAN Manager type
STRING PrimaryDomain[]; Server's primary domain
*/
byte action = fMsg.getByteParameterAt(4);
if ((action & 0x01) != 0)
fLoggedAsGuest = true;
int byte_count = fMsg.getContentSize();
int off = fMsg.getContentOffset();
int max_off = off + byte_count;
/*
// Skip security blob
off += fMsg.getShortParameterAt(6);
*/
if (off >= max_off)
return true;
// Read Native OS
fServerOS = fMsg.GetZtAsciiStringAt(off, max_off - off);
off += fServerOS.Length + 1;
if (off >= max_off)
return true;
// Read NativeLanMan
fServerLanMan = fMsg.GetZtAsciiStringAt(off, max_off - off);
off += fServerLanMan.Length + 1;
if (off >= max_off)
return true;
// Read Primary Domain
fServerPrimaryDomain = fNBTSession.WorkgroupName;
return true;
}
public void setContent(MarshalBuffer content)
{
setContent(content.GetBytes(), 0, content.Size);
}
/// <summary>
/// Ping the server to test the connection to the server and to
/// see if the server is still responding.
/// </summary>
/// <param name = "text">text to send</param>
/// <returns>Text returned by server (must be the same as the input text)</returns>
public string Echo(string text)
{
lock (this)
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "ping (SMB_COM_ECHO)");
// for now we only support 0 or 1
int echos = 1;
SetupSmbMessage(fMsg, SmbMessage.SMB_COM_ECHO);
/*
UCHAR WordCount; Count of parameter words = 1
USHORT EchoCount; Number of times to echo data back
USHORT ByteCount; Count of data bytes; min = 1
UCHAR Buffer[1]; Data to echo
*/
// Set WordCount
fMsg.setWordCount(1);
// Set echo count
fMsg.setShortParameterAt(0, echos);
var data = new MarshalBuffer(text.Length + 10);
int pos = 0;
pos += data.SetAsciiStringAt(pos, text);
data.Size = pos;
fMsg.setContent(data);
fMsg.SendAndRecieve(fNBTSession, fMsg);
int errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
throw new CifsIoException(errorclass, fMsg.getErrorCode());
int size = fMsg.getContentSize();
if (size == 0)
return "";
pos = fMsg.getContentOffset();
return fMsg.GetAsciiStringAt(pos, size);
}
}
/// <summary>
/// Connects to the tree
/// </summary>
/// <param name = "password">password</param>
/// <returns>true if ok, false if bad password</returns>
private bool DoTreeConnect(string password)
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "SMB_COM_TREE_CONNECT_ANDX");
SetupSmbMessage(fMsg, SmbMessage.SMB_COM_TREE_CONNECT_ANDX);
fMsg.setTID(0);
/*
UCHAR WordCount; Count of parameter words = 4
0: UCHAR AndXCommand; Secondary (X) command; 0xFF = none
1: UCHAR AndXReserved; Reserved (must be 0)
2: USHORT AndXOffset; Offset to next command WordCount
4: USHORT Flags; Additional information
bit 0 set = disconnect Tid
6: USHORT PasswordLength; Length of Password[]
USHORT ByteCount; Count of data bytes; min = 3
UCHAR Password[]; Password
STRING Path[]; Server name and share name
STRING Service[]; Service name
*/
fMsg.setWordCount(4);
//AndXCommand
fMsg.setByteParameterAt(0, 0xFF);
// AndXReserved
fMsg.setByteParameterAt(1, 0);
// AndXOffset
fMsg.setShortParameterAt(2, 0);
// Flags
fMsg.setShortParameterAt(4, 0);
byte[] challenge_response = null;
if ((fSecurityMode & SM_ENCRYPT_PASSWORDS) != 0)
challenge_response = CifsLogin.GetNtAuthData(password, fEncryptionKey);
else
challenge_response = Util.Util.GetZtStringBytes(password);
//Debug.WriteLine("password="******"A:";
break;
case Share.IPC:
dev = "IPC";
break;
case Share.PRINTER:
dev = "LPT1:";
break;
default:
dev = "A:";
break;
}
pos += data.SetZtAsciiStringAt(pos, dev);
data.Size = pos;
fMsg.setContent(data);
fMsg.SendAndRecieve(fNBTSession, fMsg);
int errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
{
int errorcode = fMsg.getErrorCode();
if ((errorclass == CifsIoException.ERROR_SRV &&
errorcode == CifsIoException.SRV_BAD_PASSWORD) ||
(errorclass == CifsIoException.ERROR_DOS &&
errorcode == CifsIoException.DOS_NO_ACCESS))
return false;
throw new CifsIoException(errorclass, errorcode);
}
fUID = fMsg.getUID();
fTID = fMsg.getTID();
return true;
}
/// <summary>
/// Receives SMB_COM_TRANSACTION
/// </summary>
/// <param name = "param">param parameters</param>
/// <param name = "data">data buffer</param>
internal void receiveTransaction(MarshalBuffer param, MarshalBuffer data)
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "Receive SMB_COM_TRANSACTION");
fMsg.receive(fNBTSession);
int errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
throw new CifsIoException(errorclass, fMsg.getErrorCode());
/*
UCHAR WordCount; Count of data bytes; value = 10 + SetupCount
0:USHORT TotalParameterCount; Total parameter bytes being sent
2:USHORT TotalDataCount; Total data bytes being sent
4:USHORT Reserved;
6:USHORT ParameterCount; Parameter bytes sent this buffer
8:USHORT ParameterOffset; Offset (from header start) to Parameters
10:USHORT ParameterDisplacement; Displacement of these Parameter bytes
12:USHORT DataCount; Data bytes sent this buffer
14:USHORT DataOffset; Offset (from header start) to data
16:USHORT DataDisplacement; Displacement of these data bytes
18:UCHAR SetupCount; Count of setup words
19:UCHAR Reserved2; Reserved (pad above to word)
20:USHORT Setup[SetupWordCount]; Setup words (# = SetupWordCount)
USHORT ByteCount; Count of data bytes
UCHAR Pad[]; Pad to SHORT or LONG
UCHAR Parameters[ParameterCount]; Parameter bytes (# = ParameterCount)
UCHAR Pad1[]; Pad to SHORT or LONG
UCHAR Data[DataCount]; Data bytes (# = DataCount)
*/
int lparam = 0;
int ldata = 0;
// TotalParameterCount
int tot_lparam = fMsg.getShortParameterAt(0);
int tot_ldata = fMsg.getShortParameterAt(2);
// alloca buffer
param.Capacity = tot_lparam;
data.Capacity = tot_ldata;
while (true)
{
int rcv_lparam = fMsg.getShortParameterAt(6);
int rcv_ldata = fMsg.getShortParameterAt(12);
if (rcv_lparam + lparam > tot_lparam ||
rcv_ldata + ldata > tot_ldata)
throw new SystemException("Invalid Data");
if (rcv_lparam > 0)
{
int off_param = fMsg.getShortParameterAt(8);
int dsp_param = fMsg.getShortParameterAt(10);
param.SetBytesAt(dsp_param, fMsg, off_param, rcv_lparam);
}
if (rcv_ldata > 0)
{
int off_data = fMsg.getShortParameterAt(14);
int dsp_data = fMsg.getShortParameterAt(16);
data.SetBytesAt(dsp_data, fMsg, off_data, rcv_ldata);
}
lparam += rcv_lparam;
ldata += rcv_ldata;
// get Total (they can shrink!)
tot_lparam = fMsg.getShortParameterAt(0);
tot_ldata = fMsg.getShortParameterAt(2);
if (tot_lparam <= lparam && tot_ldata <= ldata)
break;
fMsg.receive(fNBTSession);
errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
throw new CifsIoException(errorclass, fMsg.getErrorCode());
} // while loop
param.Size = lparam;
data.Size = ldata;
}
// end of sentTransaction
/// <summary>
/// Sends SMB_COM_TRANSACTION2 message
/// </summary>
/// <param name = "setup">setup words</param>
/// <param name = "param">name string</param>
/// <param name = "data">data to send</param>
/// <param name = "ldata">length of data</param>
/// <param name = "fid">file id</param>
internal void SendTransaction2(short setup, MarshalBuffer param, byte[] data,
int ldata, int fid) // should be protected
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "Send SMB_COM_TRANSACTION2");
int lparam = param.Size;
SetupSmbMessage(fMsg, SmbMessage.SMB_COM_TRANSACTION2);
/*
UCHAR WordCount; Count of parameter words; value = (14 + SetupCount)
USHORT TotalParameterCount; Total parameter bytes being sent
USHORT TotalDataCount; Total data bytes being sent
USHORT MaxParameterCount; Max parameter bytes to return
USHORT MaxDataCount; Max data bytes to return
UCHAR MaxSetupCount; Max setup words to return
UCHAR Reserved;
USHORT Flags; Additional information:
bit 0 - also disconnect TID in TID
ULONG Timeout;
USHORT Reserved2;
USHORT ParameterCount; Parameter bytes sent this buffer
USHORT ParameterOffset; Offset (from header start) to Parameters
USHORT DataCount; Data bytes sent this buffer
USHORT DataOffset; Offset (from header start) to data
UCHAR SetupCount; Count of setup words
UCHAR Reserved3; Reserved (pad above to word)
USHORT Setup[SetupCount]; Setup words (# = SetupWordCount)
USHORT ByteCount; Count of data bytes
STRING Name[]; Must be NULL
UCHAR Pad[]; Pad to SHORT or LONG
UCHAR Parameters[ ParameterCount]; Parameter bytes (# = ParameterCount)
UCHAR Pad1[]; Pad to SHORT or LONG
UCHAR Data[ DataCount ]; Data bytes (# = DataCount)
*/
fMsg.setWordCount(14 + 1);
// TotalParameterCount !!!!
fMsg.setShortParameterAt(0, lparam);
// TotalDataCount !!!!
fMsg.setShortParameterAt(2, ldata);
// MaxParameterCount returned by server
fMsg.setShortParameterAt(4, 16);
// MaxDataCount returned by server
fMsg.setShortParameterAt(6, 3000);
// MaxSetupCount returned by server
fMsg.setByteParameterAt(8, 20);
// Reserved
fMsg.setByteParameterAt(9, 0);
// Flags
fMsg.setShortParameterAt(10, 0);
// Timeout
fMsg.setIntParameterAt(12, 0);
// Reserved 2
fMsg.setShortParameterAt(16, 0);
// ParameterCount bytes sent this buffer
fMsg.setShortParameterAt(18, 0);
// ParameterOffset bytes sent this buffer
fMsg.setShortParameterAt(20, 0);
// DataCount bytes sent this buffer
fMsg.setShortParameterAt(22, 0);
// DataOffset bytes sent this buffer
fMsg.setShortParameterAt(24, 0);
// SetupCount
fMsg.setByteParameterAt(26, 1);
// Reserved3
fMsg.setByteParameterAt(27, 0);
// Setup[0]
fMsg.setShortParameterAt(28, setup);
// byteCount
fMsg.setContentSize(0);
int bytes_off, off;
bytes_off = off = fMsg.getContentOffset();
// reserve 1 (Name) + 4 (Pad) + 4 (Pad1)
// free bytes for Parameters and Data
int free = Math.Min(fMsg.Capacity - bytes_off, fMaxBufferSize) - 9;
int send_lparam = Math.Min(free, lparam);
int send_ldata = Math.Min(free - send_lparam, ldata);
// Name of trans (null string)
fMsg.SetByteAt(off, 0);
off++;
/*----------------- set parameters --------------------*/
// Calculate beginning of Parameters (offset from Header)
int param_off = off = MarshalBuffer.Align(off, 2);
// set parameter bytes
fMsg.SetBytesAt(off, param, 0, send_lparam);
// ParameterCount bytes sent this buffer
fMsg.setShortParameterAt(18, send_lparam);
// ParameterOffset bytes sent this buffer
fMsg.setShortParameterAt(20, param_off);
off += send_lparam;
/*---------------------- set data --------------------*/
// Calculate beginning of data (offset from Header)
int data_off = off = MarshalBuffer.Align(off, 2);
// set data bytes
if (send_ldata > 0)
fMsg.SetBytesAt(off, data, 0, send_ldata);
// DataCount bytes sent this buffer
fMsg.setShortParameterAt(22, send_ldata);
// DataOffset bytes sent this buffer
fMsg.setShortParameterAt(24, data_off);
off += send_ldata;
// byteCount
fMsg.setContentSize(off - bytes_off);
fMsg.send(fNBTSession);
if (send_lparam < lparam || send_ldata < ldata)
{
// receive interim response
fMsg.receive(fNBTSession);
int errorclass = fMsg.getErrorClass();
if (errorclass != CifsIoException.SUCCESS)
throw new CifsIoException(errorclass, fMsg.getErrorCode());
int tot_ldata = send_ldata;
int tot_lparam = send_lparam;
while (tot_ldata < ldata || tot_lparam < lparam)
{
// Now send the next packet
SetupSmbMessageSecondary(fMsg, SmbMessage.SMB_COM_TRANSACTION_SECONDARY);
/*
Command SMB_COM_TRANSACTION_SECONDARY
UCHAR WordCount; Count of parameter words = 9 (! FID)
0: USHORT TotalParameterCount; Total parameter bytes being sent
2: USHORT TotalDataCount; Total data bytes being sent
4: USHORT ParameterCount; Parameter bytes sent this buffer
6: USHORT ParameterOffset; Offset (from header start) to Parameters
8: USHORT ParameterDisplacement; Displacement of these Parameter bytes
10:USHORT DataCount; Data bytes sent this buffer
12:USHORT DataOffset; Offset (from header start) to data
14:USHORT DataDisplacement; Displacement of these data bytes
16:USHORT Fid; FID for handle based requests, else 0xFFFF. This field is present only if this is an SMB_COM_TRANSACTION2 request.
USHORT ByteCount; Count of data bytes
UCHAR Pad[]; Pad to SHORT or LONG
UCHAR Parameters[ParameterCount]; Parameter bytes (# = ParameterCount)
UCHAR Pad1[]; Pad to SHORT or LONG
UCHAR Data[DataCount]; Data bytes (# = DataCount)
*/
fMsg.setWordCount(9);
bytes_off = off = fMsg.getContentOffset();
free = Math.Min(fMsg.Capacity - bytes_off, fMaxBufferSize) - 9;
send_lparam = Math.Min(lparam - tot_lparam, free);
send_ldata = Math.Min(ldata - tot_ldata, free - send_lparam);
// TotalParameterCount
fMsg.setShortParameterAt(0, lparam);
// TotalDataCount
fMsg.setShortParameterAt(2, ldata);
// ParameterCount
fMsg.setShortParameterAt(4, send_lparam);
// ParameterDisplacement
fMsg.setShortParameterAt(8, tot_lparam);
// DataCount
fMsg.setShortParameterAt(10, send_ldata);
// DataDisplacement
fMsg.setShortParameterAt(14, tot_ldata);
// FID
fMsg.setShortParameterAt(16, fid);
/*----------------- set parameters --------------------*/
// Calculate beginning of Parameters (offset from Header)
param_off = off = MarshalBuffer.Align(off, 4);
// set parameter bytes
fMsg.SetBytesAt(off, param, tot_lparam, send_lparam);
// ParameterOffset bytes sent this buffer
fMsg.setShortParameterAt(6, param_off);
off += send_lparam;
/*---------------------- set data --------------------*/
// Calculate beginning of data (offset from Header)
data_off = off = MarshalBuffer.Align(off, 4);
// set data bytes
if (send_ldata > 0)
fMsg.SetBytesAt(off, data, tot_ldata, send_ldata);
// DataOffset bytes sent this buffer
fMsg.setShortParameterAt(12, data_off);
off += send_ldata;
// byteCount
fMsg.setContentSize(off - bytes_off);
fMsg.send(fNBTSession);
tot_lparam += send_lparam;
tot_ldata += send_ldata;
} // while loop
} // if recieving
}
public void SetBytesAt(int pos, MarshalBuffer bytes, int from, int len)
{
Array.Copy(bytes.fBuffer, from, fBuffer, pos, len);
}
public void SetBytesAt(int pos, MarshalBuffer bytes, int from, int len)
{
Array.Copy(bytes.fBuffer, from, fBuffer, pos, len);
}
public void setContent(MarshalBuffer content)
{
setContent(content.GetBytes(), 0, content.Size);
}
