SabreTools/SabreTools.Serialization
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Make TypeLengthValue more model-like

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This commit is contained in:
Matt Nadareski
2025-09-24 09:00:48 -04:00
parent ffe1d9a82d
commit 5fe3f14419
4 changed files with 185 additions and 179 deletions
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49
SabreTools.Serialization.Test/ASN1/TypeLengthValueTests.cs → SabreTools.Serialization.Test/Extensions/TypeLengthValueTests.cs
View File

@@ -1,8 +1,9 @@
using System;
using SabreTools.Serialization.ASN1;
using SabreTools.Serialization.Extensions;
using Xunit;
namespace SabreTools.Serialization.Test.ASN1
namespace SabreTools.Serialization.Test.Extensions
{
public class TypeLengthValueTests
{
@@ -12,7 +13,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_EOC()
{
string expected = "Type: V_ASN1_EOC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_EOC, Length = 0, Value = null };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_EOC, Length = 0, Value = null };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -21,7 +22,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ZeroLength()
{
string expected = "Type: V_ASN1_NULL, Length: 0";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_NULL, Length = 0, Value = null };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_NULL, Length = 0, Value = null };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -30,7 +31,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidConstructed()
{
string expected = "Type: V_ASN1_OBJECT, V_ASN1_CONSTRUCTED, Length: 1, Value: [INVALID DATA TYPE]";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT | ASN1Type.V_ASN1_CONSTRUCTED, Length = 1, Value = (object?)false };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT | ASN1Type.V_ASN1_CONSTRUCTED, Length = 1, Value = (object?)false };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -39,8 +40,8 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidConstructed()
{
string expected = "Type: V_ASN1_OBJECT, V_ASN1_CONSTRUCTED, Length: 3, Value:\n Type: V_ASN1_BOOLEAN, Length: 1, Value: True";
var boolTlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT | ASN1Type.V_ASN1_CONSTRUCTED, Length = 3, Value = new TypeLengthValue[] { boolTlv } };
var boolTlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT | ASN1Type.V_ASN1_CONSTRUCTED, Length = 3, Value = new Serialization.ASN1.TypeLengthValue[] { boolTlv } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -49,7 +50,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidDataType()
{
string expected = "Type: V_ASN1_OBJECT, Length: 1, Value: [INVALID DATA TYPE]";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT, Length = 1, Value = (object?)false };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT, Length = 1, Value = (object?)false };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -58,7 +59,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidLength()
{
string expected = "Type: V_ASN1_NULL, Length: 1, Value: [NO DATA]";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_NULL, Length = 1, Value = Array.Empty<byte>() };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_NULL, Length = 1, Value = Array.Empty<byte>() };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -67,7 +68,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidBooleanLength()
{
string expected = "Type: V_ASN1_BOOLEAN, Length: 2 [Expected length of 1], Value: True";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 2, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 2, Value = new byte[] { 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -76,7 +77,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidBooleanArrayLength()
{
string expected = "Type: V_ASN1_BOOLEAN, Length: 1 [Expected value length of 1], Value: True";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01, 0x00 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01, 0x00 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -85,7 +86,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidBoolean()
{
string expected = "Type: V_ASN1_BOOLEAN, Length: 1, Value: True";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BOOLEAN, Length = 1, Value = new byte[] { 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -94,7 +95,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidInteger()
{
string expected = "Type: V_ASN1_INTEGER, Length: 1, Value: 1";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_INTEGER, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_INTEGER, Length = 1, Value = new byte[] { 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -103,7 +104,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidBitString_NoBits()
{
string expected = "Type: V_ASN1_BIT_STRING, Length: 1, Value with 0 unused bits";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BIT_STRING, Length = 1, Value = new byte[] { 0x00 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BIT_STRING, Length = 1, Value = new byte[] { 0x00 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -112,7 +113,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidBitString_Bits()
{
string expected = "Type: V_ASN1_BIT_STRING, Length: 1, Value with 1 unused bits: 01";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BIT_STRING, Length = 1, Value = new byte[] { 0x01, 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BIT_STRING, Length = 1, Value = new byte[] { 0x01, 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -121,7 +122,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidOctetString()
{
string expected = "Type: V_ASN1_OCTET_STRING, Length: 1, Value: 01";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OCTET_STRING, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OCTET_STRING, Length = 1, Value = new byte[] { 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -130,7 +131,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidObject()
{
string expected = "Type: V_ASN1_OBJECT, Length: 3, Value: 0.1.2.3 (/ITU-T/1/2/3)";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT, Length = 3, Value = new byte[] { 0x01, 0x02, 0x03 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT, Length = 3, Value = new byte[] { 0x01, 0x02, 0x03 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -139,7 +140,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidUTF8String()
{
string expected = "Type: V_ASN1_UTF8STRING, Length: 3, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_UTF8STRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_UTF8STRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -148,7 +149,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidPrintableString()
{
string expected = "Type: V_ASN1_PRINTABLESTRING, Length: 3, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_PRINTABLESTRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_PRINTABLESTRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -157,7 +158,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidTeletexString()
{
string expected = "Type: V_ASN1_TELETEXSTRING, Length: 3, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_TELETEXSTRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_TELETEXSTRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -166,7 +167,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidIA5String()
{
string expected = "Type: V_ASN1_IA5STRING, Length: 3, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_IA5STRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_IA5STRING, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -175,7 +176,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_InvalidUTCTime()
{
string expected = "Type: V_ASN1_UTCTIME, Length: 3, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_UTCTIME, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_UTCTIME, Length = 3, Value = new byte[] { 0x41, 0x42, 0x43 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -184,7 +185,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidUTCTime()
{
string expected = "Type: V_ASN1_UTCTIME, Length: 3, Value: 1980-01-01 00:00:00";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_UTCTIME, Length = 3, Value = new byte[] { 0x31, 0x39, 0x38, 0x30, 0x2D, 0x30, 0x31, 0x2D, 0x30, 0x31, 0x20, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x3A, 0x30, 0x30 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_UTCTIME, Length = 3, Value = new byte[] { 0x31, 0x39, 0x38, 0x30, 0x2D, 0x30, 0x31, 0x2D, 0x30, 0x31, 0x20, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x3A, 0x30, 0x30 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -193,7 +194,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidBmpString()
{
string expected = "Type: V_ASN1_BMPSTRING, Length: 6, Value: ABC";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_BMPSTRING, Length = 6, Value = new byte[] { 0x41, 0x00, 0x42, 0x00, 0x43, 0x00 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_BMPSTRING, Length = 6, Value = new byte[] { 0x41, 0x00, 0x42, 0x00, 0x43, 0x00 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}
@@ -202,7 +203,7 @@ namespace SabreTools.Serialization.Test.ASN1
public void Format_ValidUnformatted()
{
string expected = "Type: V_ASN1_OBJECT_DESCRIPTOR, Length: 1, Value: 01";
var tlv = new TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT_DESCRIPTOR, Length = 1, Value = new byte[] { 0x01 } };
var tlv = new Serialization.ASN1.TypeLengthValue { Type = ASN1Type.V_ASN1_OBJECT_DESCRIPTOR, Length = 1, Value = new byte[] { 0x01 } };
string actual = tlv.Format();
Assert.Equal(expected, actual);
}

155
SabreTools.Serialization/ASN1/TypeLengthValue.cs
View File

@@ -1,8 +1,4 @@
using System;
using System.Numerics;
using System.Text;
namespace SabreTools.Serialization.ASN1
namespace SabreTools.Serialization.ASN1
{
/// <summary>
/// ASN.1 type/length/value class that all types are based on
@@ -23,154 +19,5 @@ namespace SabreTools.Serialization.ASN1
/// Generic value associated with <see cref="Type"/>
/// </summary>
public object? Value { get; set; }
/// <summary>
/// Format the TLV as a string
/// </summary>
/// <param name="paddingLevel">Padding level of the item when formatting</param>
/// <returns>String representing the TLV, if possible</returns>
public string Format(int paddingLevel = 0)
{
// Create the left-padding string
string padding = new(' ', paddingLevel);
// Create the string builder
var formatBuilder = new StringBuilder();
// Append the type
formatBuilder.Append($"{padding}Type: {Type}");
if (Type == ASN1Type.V_ASN1_EOC)
return formatBuilder.ToString();
// Append the length
formatBuilder.Append($", Length: {Length}");
if (Length == 0)
return formatBuilder.ToString();
// If we have a constructed type
#if NET20 || NET35
if ((Type & ASN1Type.V_ASN1_CONSTRUCTED) != 0)
#else
if (Type.HasFlag(ASN1Type.V_ASN1_CONSTRUCTED))
#endif
{
if (Value is not TypeLengthValue[] valueAsObjectArray)
{
formatBuilder.Append(", Value: [INVALID DATA TYPE]");
return formatBuilder.ToString();
}
formatBuilder.Append(", Value:\n");
for (int i = 0; i < valueAsObjectArray.Length; i++)
{
var child = valueAsObjectArray[i];
string childString = child.Format(paddingLevel + 1);
formatBuilder.Append($"{childString}\n");
}
return formatBuilder.ToString().TrimEnd('\n');
}
// Get the value as a byte array
if (Value is not byte[] valueAsByteArray)
{
formatBuilder.Append(", Value: [INVALID DATA TYPE]");
return formatBuilder.ToString();
}
else if (valueAsByteArray.Length == 0)
{
formatBuilder.Append(", Value: [NO DATA]");
return formatBuilder.ToString();
}
// If we have a primitive type
switch (Type)
{
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-boolean"/>
case ASN1Type.V_ASN1_BOOLEAN:
if (Length > 1)
formatBuilder.Append($" [Expected length of 1]");
else if (valueAsByteArray.Length > 1)
formatBuilder.Append($" [Expected value length of 1]");
bool booleanValue = valueAsByteArray[0] != 0x00;
formatBuilder.Append($", Value: {booleanValue}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-integer"/>
case ASN1Type.V_ASN1_INTEGER:
Array.Reverse(valueAsByteArray);
var integerValue = new BigInteger(valueAsByteArray);
formatBuilder.Append($", Value: {integerValue}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-bit-string"/>
case ASN1Type.V_ASN1_BIT_STRING:
// TODO: Read into a BitArray and print that out instead?
int unusedBits = valueAsByteArray[0];
if (unusedBits == 0)
formatBuilder.Append($", Value with {unusedBits} unused bits");
else
formatBuilder.Append($", Value with {unusedBits} unused bits: {BitConverter.ToString(valueAsByteArray, 1).Replace('-', ' ')}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-octet-string"/>
case ASN1Type.V_ASN1_OCTET_STRING:
formatBuilder.Append($", Value: {BitConverter.ToString(valueAsByteArray).Replace('-', ' ')}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-object-identifier"/>
/// <see cref="http://snmpsharpnet.com/index.php/2009/03/02/ber-encoding-and-decoding-oid-values/"/>
case ASN1Type.V_ASN1_OBJECT:
// Derive array of values
ulong[] objectNodes = ObjectIdentifier.ParseDERIntoArray(valueAsByteArray, Length);
// Append the dot and modified OID-IRI notations
string? dotNotationString = ObjectIdentifier.ParseOIDToDotNotation(objectNodes);
string? oidIriString = ObjectIdentifier.ParseOIDToOIDIRINotation(objectNodes);
formatBuilder.Append($", Value: {dotNotationString} ({oidIriString})");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-utf8string"/>
case ASN1Type.V_ASN1_UTF8STRING:
formatBuilder.Append($", Value: {Encoding.UTF8.GetString(valueAsByteArray)}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-printablestring"/>
case ASN1Type.V_ASN1_PRINTABLESTRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
//case ASN1Type.V_ASN1_T61STRING:
case ASN1Type.V_ASN1_TELETEXSTRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-ia5string"/>
case ASN1Type.V_ASN1_IA5STRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
case ASN1Type.V_ASN1_UTCTIME:
string utctimeString = Encoding.ASCII.GetString(valueAsByteArray);
if (DateTime.TryParse(utctimeString, out DateTime utctimeDateTime))
formatBuilder.Append($", Value: {utctimeDateTime:yyyy-MM-dd HH:mm:ss}");
else
formatBuilder.Append($", Value: {utctimeString}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-bmpstring"/>
case ASN1Type.V_ASN1_BMPSTRING:
formatBuilder.Append($", Value: {Encoding.Unicode.GetString(valueAsByteArray)}");
break;
default:
formatBuilder.Append($", Value: {BitConverter.ToString(valueAsByteArray).Replace('-', ' ')}");
break;
}
// Return the formatted string
return formatBuilder.ToString();
}
}
}

158
SabreTools.Serialization/Extensions/TypeLengthValue.cs Normal file
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@@ -0,0 +1,158 @@
using System;
using System.Numerics;
using System.Text;
namespace SabreTools.Serialization.Extensions
{
public static class TypeLengthValue
{
/// <summary>
/// Format a TypeLengthValue as a string
/// </summary>
/// <param name="paddingLevel">Padding level of the item when formatting</param>
/// <returns>String representing the TypeLengthValue, if possible</returns>
public static string Format(this ASN1.TypeLengthValue tlv, int paddingLevel = 0)
{
// Create the left-padding string
string padding = new(' ', paddingLevel);
// Create the string builder
var formatBuilder = new StringBuilder();
// Append the type
formatBuilder.Append($"{padding}Type: {tlv.Type}");
if (tlv.Type == ASN1.ASN1Type.V_ASN1_EOC)
return formatBuilder.ToString();
// Append the length
formatBuilder.Append($", Length: {tlv.Length}");
if (tlv.Length == 0)
return formatBuilder.ToString();
// If we have a constructed type
#if NET20 || NET35
if ((tlv.Type & ASN1.ASN1Type.V_ASN1_CONSTRUCTED) != 0)
#else
if (tlv.Type.HasFlag(ASN1.ASN1Type.V_ASN1_CONSTRUCTED))
#endif
{
if (tlv.Value is not ASN1.TypeLengthValue[] valueAsObjectArray)
{
formatBuilder.Append(", Value: [INVALID DATA TYPE]");
return formatBuilder.ToString();
}
formatBuilder.Append(", Value:\n");
for (int i = 0; i < valueAsObjectArray.Length; i++)
{
var child = valueAsObjectArray[i];
string childString = child.Format(paddingLevel + 1);
formatBuilder.Append($"{childString}\n");
}
return formatBuilder.ToString().TrimEnd('\n');
}
// Get the value as a byte array
if (tlv.Value is not byte[] valueAsByteArray)
{
formatBuilder.Append(", Value: [INVALID DATA TYPE]");
return formatBuilder.ToString();
}
else if (valueAsByteArray.Length == 0)
{
formatBuilder.Append(", Value: [NO DATA]");
return formatBuilder.ToString();
}
// If we have a primitive type
switch (tlv.Type)
{
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-boolean"/>
case ASN1.ASN1Type.V_ASN1_BOOLEAN:
if (tlv.Length > 1)
formatBuilder.Append($" [Expected length of 1]");
else if (valueAsByteArray.Length > 1)
formatBuilder.Append($" [Expected value length of 1]");
bool booleanValue = valueAsByteArray[0] != 0x00;
formatBuilder.Append($", Value: {booleanValue}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-integer"/>
case ASN1.ASN1Type.V_ASN1_INTEGER:
Array.Reverse(valueAsByteArray);
var integerValue = new BigInteger(valueAsByteArray);
formatBuilder.Append($", Value: {integerValue}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-bit-string"/>
case ASN1.ASN1Type.V_ASN1_BIT_STRING:
// TODO: Read into a BitArray and print that out instead?
int unusedBits = valueAsByteArray[0];
if (unusedBits == 0)
formatBuilder.Append($", Value with {unusedBits} unused bits");
else
formatBuilder.Append($", Value with {unusedBits} unused bits: {BitConverter.ToString(valueAsByteArray, 1).Replace('-', ' ')}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-octet-string"/>
case ASN1.ASN1Type.V_ASN1_OCTET_STRING:
formatBuilder.Append($", Value: {BitConverter.ToString(valueAsByteArray).Replace('-', ' ')}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-object-identifier"/>
/// <see cref="http://snmpsharpnet.com/index.php/2009/03/02/ber-encoding-and-decoding-oid-values/"/>
case ASN1.ASN1Type.V_ASN1_OBJECT:
// Derive array of values
ulong[] objectNodes = ASN1.ObjectIdentifier.ParseDERIntoArray(valueAsByteArray, tlv.Length);
// Append the dot and modified OID-IRI notations
string? dotNotationString = ASN1.ObjectIdentifier.ParseOIDToDotNotation(objectNodes);
string? oidIriString = ASN1.ObjectIdentifier.ParseOIDToOIDIRINotation(objectNodes);
formatBuilder.Append($", Value: {dotNotationString} ({oidIriString})");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-utf8string"/>
case ASN1.ASN1Type.V_ASN1_UTF8STRING:
formatBuilder.Append($", Value: {Encoding.UTF8.GetString(valueAsByteArray)}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-printablestring"/>
case ASN1.ASN1Type.V_ASN1_PRINTABLESTRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
//case ASN1Type.V_ASN1_T61STRING:
case ASN1.ASN1Type.V_ASN1_TELETEXSTRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-ia5string"/>
case ASN1.ASN1Type.V_ASN1_IA5STRING:
formatBuilder.Append($", Value: {Encoding.ASCII.GetString(valueAsByteArray)}");
break;
case ASN1.ASN1Type.V_ASN1_UTCTIME:
string utctimeString = Encoding.ASCII.GetString(valueAsByteArray);
if (DateTime.TryParse(utctimeString, out DateTime utctimeDateTime))
formatBuilder.Append($", Value: {utctimeDateTime:yyyy-MM-dd HH:mm:ss}");
else
formatBuilder.Append($", Value: {utctimeString}");
break;
/// <see href="https://learn.microsoft.com/en-us/windows/win32/seccertenroll/about-bmpstring"/>
case ASN1.ASN1Type.V_ASN1_BMPSTRING:
formatBuilder.Append($", Value: {Encoding.Unicode.GetString(valueAsByteArray)}");
break;
default:
formatBuilder.Append($", Value: {BitConverter.ToString(valueAsByteArray).Replace('-', ' ')}");
break;
}
// Return the formatted string
return formatBuilder.ToString();
}
}
}

2
SabreTools.Serialization/Printers/PortableExecutable.cs
View File

@@ -478,7 +478,7 @@ namespace SabreTools.Serialization.Printers
}
else
{
foreach (TypeLengthValue tlv in topLevelValues)
foreach (ASN1.TypeLengthValue tlv in topLevelValues)
{
string tlvString = tlv.Format(paddingLevel: 4);
builder.AppendLine(tlvString);