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-rw-r--r--src/Bindings/LuaTCPLink.cpp117
1 files changed, 111 insertions, 6 deletions
diff --git a/src/Bindings/LuaTCPLink.cpp b/src/Bindings/LuaTCPLink.cpp
index c533456ad..40371d6da 100644
--- a/src/Bindings/LuaTCPLink.cpp
+++ b/src/Bindings/LuaTCPLink.cpp
@@ -160,10 +160,14 @@ void cLuaTCPLink::Shutdown(void)
cTCPLinkPtr Link = m_Link;
if (Link != nullptr)
{
+ if (m_SslContext != nullptr)
+ {
+ m_SslContext->NotifyClose();
+ m_SslContext->ResetSelf();
+ m_SslContext.reset();
+ }
Link->Shutdown();
}
-
- Terminated();
}
@@ -176,6 +180,12 @@ void cLuaTCPLink::Close(void)
cTCPLinkPtr Link = m_Link;
if (Link != nullptr)
{
+ if (m_SslContext != nullptr)
+ {
+ m_SslContext->NotifyClose();
+ m_SslContext->ResetSelf();
+ m_SslContext.reset();
+ }
Link->Close();
}
@@ -228,6 +238,58 @@ AString cLuaTCPLink::StartTLSClient(
}
m_SslContext->SetOwnCert(OwnCert, OwnPrivKey);
}
+ m_SslContext->SetSelf(cLinkSslContextWPtr(m_SslContext));
+
+ // Start the handshake:
+ m_SslContext->Handshake();
+ return "";
+}
+
+
+
+
+
+AString cLuaTCPLink::StartTLSServer(
+ const AString & a_OwnCertData,
+ const AString & a_OwnPrivKeyData,
+ const AString & a_OwnPrivKeyPassword,
+ const AString & a_StartTLSData
+)
+{
+ // Check preconditions:
+ if (m_SslContext != nullptr)
+ {
+ return "TLS is already active on this link";
+ }
+ if (a_OwnCertData.empty() || a_OwnPrivKeyData.empty())
+ {
+ return "Provide the server certificate and private key";
+ }
+
+ // Create the SSL context:
+ m_SslContext.reset(new cLinkSslContext(*this));
+ m_SslContext->Initialize(false);
+
+ // Create the peer cert:
+ auto OwnCert = std::make_shared<cX509Cert>();
+ int res = OwnCert->Parse(a_OwnCertData.data(), a_OwnCertData.size());
+ if (res != 0)
+ {
+ m_SslContext.reset();
+ return Printf("Cannot parse server certificate: -0x%x", res);
+ }
+ auto OwnPrivKey = std::make_shared<cCryptoKey>();
+ res = OwnPrivKey->ParsePrivate(a_OwnPrivKeyData.data(), a_OwnPrivKeyData.size(), a_OwnPrivKeyPassword);
+ if (res != 0)
+ {
+ m_SslContext.reset();
+ return Printf("Cannot parse server private key: -0x%x", res);
+ }
+ m_SslContext->SetOwnCert(OwnCert, OwnPrivKey);
+ m_SslContext->SetSelf(cLinkSslContextWPtr(m_SslContext));
+
+ // Push the initial data:
+ m_SslContext->StoreReceivedData(a_StartTLSData.data(), a_StartTLSData.size());
// Start the handshake:
m_SslContext->Handshake();
@@ -254,12 +316,17 @@ void cLuaTCPLink::Terminated(void)
}
// If the link is still open, close it:
- cTCPLinkPtr Link = m_Link;
- if (Link != nullptr)
{
- Link->Close();
- m_Link.reset();
+ cTCPLinkPtr Link = m_Link;
+ if (Link != nullptr)
+ {
+ Link->Close();
+ m_Link.reset();
+ }
}
+
+ // If the SSL context still exists, free it:
+ m_SslContext.reset();
}
@@ -401,8 +468,29 @@ cLuaTCPLink::cLinkSslContext::cLinkSslContext(cLuaTCPLink & a_Link):
+void cLuaTCPLink::cLinkSslContext::SetSelf(cLinkSslContextWPtr & a_Self)
+{
+ m_Self = a_Self;
+}
+
+
+
+
+
+void cLuaTCPLink::cLinkSslContext::ResetSelf(void)
+{
+ m_Self.reset();
+}
+
+
+
+
+
void cLuaTCPLink::cLinkSslContext::StoreReceivedData(const char * a_Data, size_t a_NumBytes)
{
+ // Hold self alive for the duration of this function
+ cLinkSslContextPtr Self(m_Self);
+
m_EncryptedData.append(a_Data, a_NumBytes);
// Try to finish a pending handshake:
@@ -418,6 +506,9 @@ void cLuaTCPLink::cLinkSslContext::StoreReceivedData(const char * a_Data, size_t
void cLuaTCPLink::cLinkSslContext::FlushBuffers(void)
{
+ // Hold self alive for the duration of this function
+ cLinkSslContextPtr Self(m_Self);
+
// If the handshake didn't complete yet, bail out:
if (!HasHandshaken())
{
@@ -429,6 +520,11 @@ void cLuaTCPLink::cLinkSslContext::FlushBuffers(void)
while ((NumBytes = ReadPlain(Buffer, sizeof(Buffer))) > 0)
{
m_Link.ReceivedCleartextData(Buffer, static_cast<size_t>(NumBytes));
+ if (m_Self.expired())
+ {
+ // The callback closed the SSL context, bail out
+ return;
+ }
}
}
@@ -438,6 +534,9 @@ void cLuaTCPLink::cLinkSslContext::FlushBuffers(void)
void cLuaTCPLink::cLinkSslContext::TryFinishHandshaking(void)
{
+ // Hold self alive for the duration of this function
+ cLinkSslContextPtr Self(m_Self);
+
// If the handshake hasn't finished yet, retry:
if (!HasHandshaken())
{
@@ -458,6 +557,9 @@ void cLuaTCPLink::cLinkSslContext::TryFinishHandshaking(void)
void cLuaTCPLink::cLinkSslContext::Send(const AString & a_Data)
{
+ // Hold self alive for the duration of this function
+ cLinkSslContextPtr Self(m_Self);
+
// If the handshake hasn't completed yet, queue the data:
if (!HasHandshaken())
{
@@ -477,6 +579,9 @@ void cLuaTCPLink::cLinkSslContext::Send(const AString & a_Data)
int cLuaTCPLink::cLinkSslContext::ReceiveEncrypted(unsigned char * a_Buffer, size_t a_NumBytes)
{
+ // Hold self alive for the duration of this function
+ cLinkSslContextPtr Self(m_Self);
+
// If there's nothing queued in the buffer, report empty buffer:
if (m_EncryptedData.empty())
{