Sequence of OCTET STRING

[zivillian]

RFC 4511 - 4.5.1

SearchRequest ::= [APPLICATION 3] SEQUENCE {
     baseObject      LDAPDN,
...
     attributes      AttributeSelection }

AttributeSelection ::= SEQUENCE OF selector LDAPString
                -- The LDAPString is constrained to
                -- <attributeSelector> in Section 4.5.1.8

LDAPString ::= OCTET STRING -- UTF-8 encoded,
                                    -- [ISO10646] characters

ldap.net/ldap/Asn1/Asn1SearchRequest.cs

Lines 42 to 44 in 8389e4e

	//TODO
	[AnyValue]
	public ReadOnlyMemory<byte> Attributes;

I can't combine SequenceOf and OctetString.

[zivillian]

May be a dupe of dotnet/corefx#28683

[filipnavara]

This should work just fine with the ASN code generator. That said, why doesn't ReadOnlyMemory<byte>[] with SequenceOf and OctetString (and ExpectedTag) work for you?

[zivillian]

It throws an Exception in

ldap.net/asn.1/Asn1V2.Serializer.cs

Lines 1075 to 1081 in e53bfcc

	if (typeAttrs.Length > 1)
	{
	throw new AsnSerializationConstraintException(
	String.Format(
	fieldInfo.Name,
	fieldInfo.DeclaringType.FullName,
	typeof(AsnTypeAttribute).FullName));

because both derive from AsnTypeAttribute.

ldap.net/asn.1/Asn1V2.Serializer.cs

Line 1626 in e53bfcc

public sealed class SequenceOfAttribute : AsnTypeAttribute

ldap.net/asn.1/Asn1V2.Serializer.cs

Line 1578 in e53bfcc

public sealed class OctetStringAttribute : AsnTypeAttribute

[filipnavara]

It's possible to workaround that with a dummy Choice struct instead of using OctetString directly, but it's a bit of a hack.

Definitely recommend the code generator as an alternative here. The serializer is unlikely to get shipped as production ready anyway. In case the CoreFX guys decide to ship it then it should probably be addressed though.