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| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-07-06 17:15:29 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-07-06 17:15:29 +0700 |
| commit | 806f7224c9c1f6708358115f0bb8a3fcfd0a0663 (patch) | |
| tree | d705b3a45e0e86a0345430286d1a458a081c1579 /crypto/src/tls/TlsUtilities.cs | |
| parent | DTLS: Use SecurityParameters.m_resumedSession for resumption tracking (diff) | |
| download | BouncyCastle.NET-ed25519-806f7224c9c1f6708358115f0bb8a3fcfd0a0663.tar.xz | |
(D)TLS: Refactoring around the MFL extension
Diffstat (limited to 'crypto/src/tls/TlsUtilities.cs')
| -rw-r--r-- | crypto/src/tls/TlsUtilities.cs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/crypto/src/tls/TlsUtilities.cs b/crypto/src/tls/TlsUtilities.cs index 2f95e71ab..a9c7629d6 100644 --- a/crypto/src/tls/TlsUtilities.cs +++ b/crypto/src/tls/TlsUtilities.cs @@ -5731,6 +5731,23 @@ namespace Org.BouncyCastle.Tls return v; } + /// <exception cref="IOException"/> + internal static short ProcessMaxFragmentLengthExtension(IDictionary<int, byte[]> clientExtensions, + IDictionary<int, byte[]> serverExtensions, short alertDescription) + { + short maxFragmentLength = TlsExtensionsUtilities.GetMaxFragmentLengthExtension(serverExtensions); + if (maxFragmentLength >= 0) + { + if (!MaxFragmentLength.IsValid(maxFragmentLength) || + (clientExtensions != null && + maxFragmentLength != TlsExtensionsUtilities.GetMaxFragmentLengthExtension(clientExtensions))) + { + throw new TlsFatalAlert(alertDescription); + } + } + return maxFragmentLength; + } + // TODO[api] Not needed once GetHandshakeResendTimeMillis() has been added to TlsPeer internal static int GetHandshakeResendTimeMillis(TlsPeer tlsPeer) { |