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SMB2Client: Limit the value of MaxTransactSize, MaxReadSize and MaxWriteSize to 64KB

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This commit is contained in:
Tal Aloni 2017-10-04 10:02:22 +03:00
parent db0c094ff7
commit eacef2d50b
1 changed files with 7 additions and 3 deletions
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10
SMBLibrary/Client/SMB2Client.cs
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@ -23,6 +23,10 @@ namespace SMBLibrary.Client
public const int NetBiosOverTCPPort = 139;
public const int DirectTCPPort = 445;
public const uint ClientMaxTransactSize = 65536;
public const uint ClientMaxReadSize = 65536;
public const uint ClientMaxWriteSize = 65536;
private SMBTransportType m_transport;
private bool m_isConnected;
private bool m_isLoggedIn;
@ -110,9 +114,9 @@ namespace SMBLibrary.Client
if (response != null && response.Header.Status == NTStatus.STATUS_SUCCESS)
{
m_dialect = response.DialectRevision;
m_maxTransactSize = response.MaxTransactSize;
m_maxReadSize = response.MaxReadSize;
m_maxWriteSize = response.MaxWriteSize;
m_maxTransactSize = Math.Min(response.MaxTransactSize, ClientMaxTransactSize);
m_maxReadSize = Math.Min(response.MaxReadSize, ClientMaxReadSize);
m_maxWriteSize = Math.Min(response.MaxWriteSize, ClientMaxWriteSize);
m_securityBlob = response.SecurityBuffer;
return true;
}