/// <summary>
/// initialize the restriction of target info
/// </summary>
/// <param name="targetInfo">the target info collection</param>
private void InitializeRestriction(
ICollection <AV_PAIR> targetInfo
)
{
// update the MsAvRestrictions of targetInfo
// MachineID (32 bytes): A 256-bit random number created at computer
// startup to identify the calling machine.
Restriction_Encoding restriction = new Restriction_Encoding();
// defines the length, in bytes, of AV_PAIR Value.
restriction.Size = 0x30;
restriction.MachineID = new byte[NlmpUtility.MACHINE_ID_SIZE];
byte[] restrictionBytes = NlmpUtility.StructGetBytes(restriction);
if (NlmpUtility.AvPairContains(targetInfo, AV_PAIR_IDs.MsAvRestrictions))
{
NlmpUtility.UpdateAvPair(
targetInfo, AV_PAIR_IDs.MsAvRestrictions, (ushort)restrictionBytes.Length, restrictionBytes);
}
else
{
NlmpUtility.AddAVPair(
targetInfo, AV_PAIR_IDs.MsAvRestrictions, (ushort)restrictionBytes.Length, restrictionBytes);
}
}
//If the ClientChannelBindingsUnhashed (section 3.1.1.2) is not NULL
private void InitializeMsAvChannelBindings(
ICollection <AV_PAIR> targetInfo
)
{
// update the MsAvChannelBinding of targetInfo
// add an AV_PAIR structure (section 2.2.2.1) and set the AvId field to MsvAvChannelBindings and the Value field to Z(16).
var value = NlmpUtility.Z(16);
if (NlmpUtility.AvPairContains(targetInfo, AV_PAIR_IDs.MsvChannelBindings))
{
NlmpUtility.UpdateAvPair(
targetInfo, AV_PAIR_IDs.MsvChannelBindings, (ushort)value.Length, value);
}
else
{
NlmpUtility.AddAVPair(
targetInfo, AV_PAIR_IDs.MsvChannelBindings, (ushort)value.Length, value);
}
}
// If ClientSuppliedTargetName (section 3.1.1.2) is not NULL
private void InitializeMsvAvTargetName(
ICollection <AV_PAIR> targetInfo
)
{
// update the MsvAvTargetName of targetInfo
// Add an AV_PAIR structure (section 2.2.2.1) and set the AvId field to MsvAvTargetName and the Value field to ClientSuppliedTargetName without terminating NULL.
byte[] targetName = NlmpUtility.Unicode(this.credential.TargetName);
if (NlmpUtility.AvPairContains(targetInfo, AV_PAIR_IDs.MsvAvTargetName))
{
NlmpUtility.UpdateAvPair(
targetInfo, AV_PAIR_IDs.MsvAvTargetName, (ushort)targetName.Length, targetName);
}
else
{
NlmpUtility.AddAVPair(
targetInfo, AV_PAIR_IDs.MsvAvTargetName, (ushort)targetName.Length, targetName);
}
}
/// <summary>
/// initialize the MsAvFlags of target info
/// </summary>
/// <param name="targetInfo">the target info collection</param>
private void InitializeMsAvFlags(
ICollection <AV_PAIR> targetInfo
)
{
// update the MsvAvFlags of targetInfo
if (NlmpUtility.AvPairContains(targetInfo, AV_PAIR_IDs.MsvAvFlags))
{
uint value = NlmpUtility.BytesToSecurityUInt32(
NlmpUtility.AvPairGetValue(targetInfo, AV_PAIR_IDs.MsvAvFlags)
);
// if AvId field set to MsvAvFlags, set the 0x02 bit to 1.
value |= 0x02;
byte[] newValue = NlmpUtility.SecurityUInt32GetBytes(value);
NlmpUtility.UpdateAvPair(targetInfo, AV_PAIR_IDs.MsvAvFlags, (ushort)newValue.Length, newValue);
}
else
{
// if AvId field set to MsvAvFlags, set the 0x02 bit to 1.
uint value = 0x02;
byte[] newValue = NlmpUtility.SecurityUInt32GetBytes(value);
NlmpUtility.AddAVPair(targetInfo, AV_PAIR_IDs.MsvAvFlags, (ushort)newValue.Length, newValue);
}
}
