Add support for TLS SNI

Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>

headers/os/net/NetworkAddress.h

@@ -149,6 +149,7 @@ class BNetworkAddress : public BFlattenable {
 private:
 			sockaddr_storage	fAddress;
 			status_t			fStatus;
+			BString				fHostName;
 };
 
 

headers/os/net/SecureSocket.h

@@ -42,8 +42,8 @@ class BSecureSocket : public BSocket {
 	virtual ssize_t				Write(const void* buffer, size_t size);
 
 protected:
-			status_t			_SetupCommon();
-			status_t			_SetupConnect();
+			status_t			_SetupCommon(const char* host = NULL);
+			status_t			_SetupConnect(const char* host = NULL);
 			status_t			_SetupAccept();
 
 private:

src/kits/network/libnetapi/NetworkAddress.cpp

@@ -129,7 +129,8 @@ BNetworkAddress::BNetworkAddress(const in6_addr& address, uint16 port)
 BNetworkAddress::BNetworkAddress(const BNetworkAddress& other)
 	:
 	fAddress(other.fAddress),
-	fStatus(other.fStatus)
+	fStatus(other.fStatus),
+	fHostName(other.fHostName)
 {
 }
 
@@ -151,6 +152,7 @@ BNetworkAddress::Unset()
 {
 	fAddress.ss_family = AF_UNSPEC;
 	fAddress.ss_len = 2;
+	fHostName = "";
 	fStatus = B_OK;
 }
 
@@ -170,15 +172,13 @@ BNetworkAddress::SetTo(const char* host, uint16 port, uint32 flags)
 
 	uint32 cookie = 0;
 	status = resolver->GetNextAddress(AF_INET6, &cookie, *this);
-	if (status == B_OK) {
-		fStatus = B_OK;
-		return B_OK;
+	if (status != B_OK) {
+		cookie = 0;
+		status = resolver->GetNextAddress(&cookie, *this);
+		if (status != B_OK)
+			Unset();
 	}
-
-	cookie = 0;
-	status = resolver->GetNextAddress(&cookie, *this);
-	if (status != B_OK)
-		Unset();
+	fHostName = host;
 	fStatus = status;
 	return status;
 }
@@ -199,15 +199,13 @@ BNetworkAddress::SetTo(const char* host, const char* service, uint32 flags)
 
 	uint32 cookie = 0;
 	status = resolver->GetNextAddress(AF_INET6, &cookie, *this);
-	if (status == B_OK) {
-		fStatus = B_OK;
-		return B_OK;
+	if (status != B_OK) {
+		cookie = 0;
+		status = resolver->GetNextAddress(&cookie, *this);
+		if (status != B_OK)
+			Unset();
 	}
-
-	cookie = 0;
-	status = resolver->GetNextAddress(&cookie, *this);
-	if (status != B_OK)
-		Unset();
+	fHostName = host;
 	fStatus = status;
 	return status;
 }
@@ -235,6 +233,7 @@ BNetworkAddress::SetTo(int family, const char* host, uint16 port, uint32 flags)
 	status = resolver->GetNextAddress(&cookie, *this);
 	if (status != B_OK)
 		Unset();
+	fHostName = host;
 	fStatus = status;
 	return status;
 }
@@ -263,6 +262,7 @@ BNetworkAddress::SetTo(int family, const char* host, const char* service,
 	status = resolver->GetNextAddress(&cookie, *this);
 	if (status != B_OK)
 		Unset();
+	fHostName = host;
 	fStatus = status;
 	return status;
 }
@@ -372,6 +372,7 @@ BNetworkAddress::SetTo(const BNetworkAddress& other)
 {
 	fAddress = other.fAddress;
 	fStatus = other.fStatus;
+	fHostName = other.fHostName;
 }
 
 
@@ -1047,7 +1048,7 @@ BString
 BNetworkAddress::HostName() const
 {
 	// TODO: implement host name lookup
-	return ToString(false);
+	return fHostName;
 }
 
 
@@ -1159,6 +1160,7 @@ BNetworkAddress&
 BNetworkAddress::operator=(const BNetworkAddress& other)
 {
 	memcpy(&fAddress, &other.fAddress, other.fAddress.ss_len);
+	fHostName = other.fHostName;
 	fStatus = other.fStatus;
 
 	return *this;
@@ -1291,6 +1293,8 @@ BNetworkAddress::_ParseLinkAddress(const char* address)
 
 		address += 3;
 	}
+
+	fHostName = address;
 
 	SetToLinkLevel(linkAddress, length);
 	return B_OK;

src/kits/network/libnetapi/SecureSocket.cpp

@@ -297,7 +297,7 @@ BSecureSocket::Connect(const BNetworkAddress& peer, bigtime_t timeout)
 	if (status != B_OK)
 		return status;
 
-	return _SetupConnect();
+	return _SetupConnect(peer.HostName().String());
 }
 
 
@@ -381,7 +381,7 @@ BSecureSocket::Write(const void* buffer, size_t size)
 
 
 status_t
-BSecureSocket::_SetupCommon()
+BSecureSocket::_SetupCommon(const char* host)
 {
 	// Do this only after BSocket::Connect has checked wether we're already
 	// connected. We don't want to kill an existing SSL session, as that would
@@ -399,15 +399,20 @@ BSecureSocket::_SetupCommon()
 	BIO_set_fd(fPrivate->fBIO, fSocket, BIO_NOCLOSE);
 	SSL_set_bio(fPrivate->fSSL, fPrivate->fBIO, fPrivate->fBIO);
 	SSL_set_ex_data(fPrivate->fSSL, Private::sDataIndex, this);
+	if (host != NULL) {
+		BString hostString = host;
+		if (hostString != "")
+			SSL_set_tlsext_host_name(fPrivate->fSSL, host);
+	}
 
 	return B_OK;
 }
 
 
 status_t
-BSecureSocket::_SetupConnect()
+BSecureSocket::_SetupConnect(const char* host)
 {
-	status_t error = _SetupCommon();
+	status_t error = _SetupCommon(host);
 	if (error != B_OK)
 		return error;
 
@@ -529,14 +534,14 @@ BSecureSocket::InitCheck()
 
 
 status_t
-BSecureSocket::_SetupCommon()
+BSecureSocket::_SetupCommon(const char* host)
 {
 	return B_UNSUPPORTED;
 }
 
 
 status_t
-BSecureSocket::_SetupConnect()
+BSecureSocket::_SetupConnect(const char* host)
 {
 	return B_UNSUPPORTED;
 }