/// <summary>
/// Packs parts into a single message body.
/// </summary>
/// <param name="length">Message length.</param>
/// <param name="version">Message version.</param>
/// <param name="header">Header.</param>
/// <param name="parameters">Security parameters.</param>
/// <param name="data">Scope data.</param>
/// <returns>The <see cref="Sequence" /> object that represents the message body.</returns>
public static Sequence PackMessage(byte[] length, VersionCode version, ISegment header, ISegment parameters, ISnmpData data)
{
if (header == null)
{
throw new ArgumentNullException(nameof(header));
}
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
ISnmpData[] items = new[]
{
new Integer32((int)version),
header.GetData(version),
parameters.GetData(version),
data
};
return(new Sequence(length, items));
}
internal static Sequence PackMessage(VersionCode version, ISegment header, SecurityParameters parameters, ISnmpData data)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (data == null)
{
throw new ArgumentNullException("data");
}
ISnmpData[] items = new[]
{
new Integer32((int)version),
header.GetData(version),
parameters.GetData(version),
data
};
return(new Sequence(items));
}
internal static Sequence PackMessage(VersionCode version, ISegment header, ISegment parameters, ISnmpData scopeBytes, IPrivacyProvider privacy)
{
if (scopeBytes == null)
{
throw new ArgumentNullException("scopeBytes");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (header == null)
{
throw new ArgumentNullException("header");
}
if (privacy == null)
{
throw new ArgumentNullException("privacy");
}
ISnmpData[] collection = new ISnmpData[4]
{
new Integer32((int)version),
header.GetData(version),
parameters.GetData(version),
scopeBytes,
};
return new Sequence(collection);
}
internal static Sequence PackMessage(VersionCode version, ISegment header, SecurityParameters parameters, ISegment scope, IPrivacyProvider privacy)
{
if (scope == null)
{
throw new ArgumentNullException("scope");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (header == null)
{
throw new ArgumentNullException("header");
}
if (privacy == null)
{
throw new ArgumentNullException("privacy");
}
ISnmpData[] collection = new ISnmpData[4]
{
new Integer32((int)version),
header.GetData(version),
parameters.GetData(version),
privacy.Encrypt(scope.GetData(version), parameters)
};
return(new Sequence(collection));
}
/// <summary>
/// Computes the hash.
/// </summary>
/// <param name="provider">The authentication provider.</param>
/// <param name="version">The version.</param>
/// <param name="header">The header.</param>
/// <param name="parameters">The parameters.</param>
/// <param name="scope">The scope.</param>
/// <param name="privacy">The privacy provider.</param>
public static void ComputeHash(
this IAuthenticationProvider provider, VersionCode version, Header header, SecurityParameters parameters, ISegment scope, IPrivacyProvider privacy)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (header == null)
{
throw new ArgumentNullException("header");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (scope == null)
{
throw new ArgumentNullException("scope");
}
if (privacy == null)
{
throw new ArgumentNullException("privacy");
}
if (provider is DefaultAuthenticationProvider)
{
return;
}
if (0 == (header.SecurityLevel & Levels.Authentication))
{
return;
}
var scopeData = privacy.GetScopeData(header, parameters, scope.GetData(version));
parameters.AuthenticationParameters = provider.ComputeHash(version, header, parameters, scopeData, privacy, null); // replace the hash.
}
/// <summary>
/// Computes the hash.
/// </summary>
/// <param name="provider">The authentication provider.</param>
/// <param name="version">The version.</param>
/// <param name="header">The header.</param>
/// <param name="parameters">The parameters.</param>
/// <param name="scope">The scope.</param>
/// <param name="privacy">The privacy provider.</param>
public static void ComputeHash(this IAuthenticationProvider provider, VersionCode version, Header header, SecurityParameters parameters, ISegment scope, IPrivacyProvider privacy)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (header == null)
{
throw new ArgumentNullException("header");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (scope == null)
{
throw new ArgumentNullException("scope");
}
if (privacy == null)
{
throw new ArgumentNullException("privacy");
}
if (provider is DefaultAuthenticationProvider)
{
return;
}
if (0 == (header.SecurityLevel & Levels.Authentication))
{
return;
}
var scopeData = privacy.GetScopeData(header, parameters, scope.GetData(version));
parameters.AuthenticationParameters = provider.ComputeHash(version, header, parameters, scopeData, privacy, null); // replace the hash.
}
internal static Sequence PackMessage(byte[] length, VersionCode version, ISegment header, ISegment parameters, ISnmpData data)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (data == null)
{
throw new ArgumentNullException("data");
}
var items = new[]
{
new Integer32((int)version),
header.GetData(version),
parameters.GetData(version),
data
};
return new Sequence(length, items);
}
