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-rw-r--r--src/apps/apps.h1
-rw-r--r--src/apps/tls_server_asio.cpp315
-rw-r--r--src/build-data/makefile/unix_shr.in2
3 files changed, 317 insertions, 1 deletions
diff --git a/src/apps/apps.h b/src/apps/apps.h
index 18a25b935..ae4f884b6 100644
--- a/src/apps/apps.h
+++ b/src/apps/apps.h
@@ -26,4 +26,5 @@ DEFINE_EXAMPLE(read_ssh);
DEFINE_EXAMPLE(self_sig);
DEFINE_EXAMPLE(tls_client);
DEFINE_EXAMPLE(tls_server);
+DEFINE_EXAMPLE(tls_server_asio);
DEFINE_EXAMPLE(x509);
diff --git a/src/apps/tls_server_asio.cpp b/src/apps/tls_server_asio.cpp
new file mode 100644
index 000000000..119e2154f
--- /dev/null
+++ b/src/apps/tls_server_asio.cpp
@@ -0,0 +1,315 @@
+#include "apps.h"
+#include <iostream>
+#include <string>
+#include <vector>
+#define _GLIBCXX_HAVE_GTHR_DEFAULT
+#include <boost/asio.hpp>
+#include <boost/bind.hpp>
+#include <boost/thread.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+
+#include <botan/tls_server.h>
+#include <botan/x509cert.h>
+#include <botan/pkcs8.h>
+#include <botan/auto_rng.h>
+#include <botan/init.h>
+
+#include "credentials.h"
+
+using Botan::byte;
+using boost::asio::ip::tcp;
+
+namespace {
+
+class tls_server_session : public boost::enable_shared_from_this<tls_server_session>
+ {
+ public:
+ typedef boost::shared_ptr<tls_server_session> pointer;
+
+ static pointer create(boost::asio::io_service& io_service,
+ Botan::TLS::Session_Manager& session_manager,
+ Botan::Credentials_Manager& credentials,
+ Botan::TLS::Policy& policy,
+ Botan::RandomNumberGenerator& rng)
+ {
+ return pointer(
+ new tls_server_session(
+ io_service,
+ session_manager,
+ credentials,
+ policy,
+ rng)
+ );
+ }
+
+ tcp::socket& socket() { return m_socket; }
+
+ void start()
+ {
+ m_socket.async_read_some(
+ boost::asio::buffer(m_read_buf, sizeof(m_read_buf)),
+ m_strand.wrap(
+ boost::bind(&tls_server_session::handle_read, shared_from_this(),
+ boost::asio::placeholders::error,
+ boost::asio::placeholders::bytes_transferred)));
+ }
+
+ void stop() { m_socket.close(); }
+
+ private:
+ tls_server_session(boost::asio::io_service& io_service,
+ Botan::TLS::Session_Manager& session_manager,
+ Botan::Credentials_Manager& credentials,
+ Botan::TLS::Policy& policy,
+ Botan::RandomNumberGenerator& rng) :
+ m_strand(io_service),
+ m_socket(io_service),
+ m_tls(boost::bind(&tls_server_session::tls_output_wanted, this, _1, _2),
+ boost::bind(&tls_server_session::tls_data_recv, this, _1, _2),
+ boost::bind(&tls_server_session::tls_alert_cb, this, _1, _2, _3),
+ boost::bind(&tls_server_session::tls_handshake_complete, this, _1),
+ session_manager,
+ credentials,
+ policy,
+ rng)
+ {
+ }
+
+ void handle_read(const boost::system::error_code& error,
+ size_t bytes_transferred)
+ {
+ if(!error)
+ {
+ try
+ {
+ m_tls.received_data(m_read_buf, bytes_transferred);
+ }
+ catch(std::exception& e)
+ {
+ std::cout << "Read failed " << e.what() << "\n";
+ stop();
+ return;
+ }
+
+ m_socket.async_read_some(
+ boost::asio::buffer(m_read_buf, sizeof(m_read_buf)),
+ m_strand.wrap(boost::bind(&tls_server_session::handle_read, shared_from_this(),
+ boost::asio::placeholders::error,
+ boost::asio::placeholders::bytes_transferred)));
+ }
+ else
+ {
+ stop();
+ }
+ }
+
+ void handle_write(const boost::system::error_code& error)
+ {
+ if(!error)
+ {
+ m_write_buf.clear();
+
+ // initiate another write if needed
+ tls_output_wanted(NULL, 0);
+ }
+ else
+ {
+ stop();
+ }
+ }
+
+ void tls_output_wanted(const byte buf[], size_t buf_len)
+ {
+ if(buf_len > 0)
+ m_outbox.insert(m_outbox.end(), buf, buf + buf_len);
+
+ // no write pending and have output pending
+ if(m_write_buf.empty() && !m_outbox.empty())
+ {
+ std::swap(m_outbox, m_write_buf);
+
+ boost::asio::async_write(m_socket,
+ boost::asio::buffer(&m_write_buf[0], m_write_buf.size()),
+ m_strand.wrap(
+ boost::bind(&tls_server_session::handle_write,
+ shared_from_this(),
+ boost::asio::placeholders::error)));
+ }
+ }
+
+ void tls_alert_cb(Botan::TLS::Alert alert, const byte buf[], size_t buf_len)
+ {
+ if(alert.type() == Botan::TLS::Alert::CLOSE_NOTIFY)
+ {
+ m_tls.close();
+ return;
+ }
+ }
+
+ void tls_data_recv(const byte buf[], size_t buf_len)
+ {
+ m_client_data.insert(m_client_data.end(), buf, buf + buf_len);
+
+ if(ready_to_respond())
+ write_response();
+ }
+
+ bool ready_to_respond()
+ {
+ return true; // parse headers?
+ }
+
+ void write_response()
+ {
+ std::string out;
+ out += "\r\n";
+ out += "HTTP/1.0 200 OK\r\n";
+ out += "Server: Botan ASIO test server\r\n";
+ if(m_hostname != "")
+ out += "Host: " + m_hostname + "\r\n";
+ out += "Content-Type: text/html\r\n";
+ out += "\r\n";
+ out += "<html><body>Greets. You said: ";
+ out += std::string((const char*)&m_client_data[0], m_client_data.size());
+ out += "</body></html>\r\n\r\n";
+
+ m_tls.send(out);
+ m_tls.close();
+ }
+
+ bool tls_handshake_complete(const Botan::TLS::Session& session)
+ {
+ m_hostname = session.server_info().hostname();
+ return true;
+ }
+
+ boost::asio::io_service::strand m_strand; // serialization
+
+ tcp::socket m_socket;
+ Botan::TLS::Server m_tls;
+ std::string m_hostname;
+
+ unsigned char m_read_buf[1024];
+
+ // used to hold the data currently being written by the system
+ std::vector<byte> m_write_buf;
+
+ // used to hold data queued for writing
+ std::vector<byte> m_outbox;
+
+ std::vector<byte> m_client_data;
+ };
+
+class asio_tls_server
+ {
+ public:
+ typedef tls_server_session session;
+
+ asio_tls_server(boost::asio::io_service& io_service, unsigned short port) :
+ m_acceptor(io_service, tcp::endpoint(tcp::v4(), port)),
+ m_session_manager(m_rng),
+ m_creds(m_rng)
+ {
+ session::pointer new_session = make_session();
+
+ m_acceptor.async_accept(
+ new_session->socket(),
+ boost::bind(
+ &asio_tls_server::handle_accept,
+ this,
+ new_session,
+ boost::asio::placeholders::error)
+ );
+ }
+
+ private:
+ session::pointer make_session()
+ {
+ return session::create(
+ m_acceptor.get_io_service(),
+ m_session_manager,
+ m_creds,
+ m_policy,
+ m_rng
+ );
+ }
+
+ void handle_accept(session::pointer new_session,
+ const boost::system::error_code& error)
+ {
+ if (!error)
+ {
+ new_session->start();
+
+ new_session = make_session();
+
+ m_acceptor.async_accept(
+ new_session->socket(),
+ boost::bind(
+ &asio_tls_server::handle_accept,
+ this,
+ new_session,
+ boost::asio::placeholders::error)
+ );
+ }
+ }
+
+ tcp::acceptor m_acceptor;
+
+ Botan::AutoSeeded_RNG m_rng;
+ Botan::TLS::Session_Manager_In_Memory m_session_manager;
+ Botan::TLS::Policy m_policy;
+ Credentials_Manager_Simple m_creds;
+ };
+
+size_t choose_thread_count()
+ {
+ size_t result = boost::thread::hardware_concurrency();
+
+ if(result)
+ return result;
+
+ return 2;
+ }
+
+}
+
+int tls_server_asio(int argc, char* argv[])
+ {
+ try
+ {
+ Botan::LibraryInitializer init("thread_safe=true");
+ boost::asio::io_service io_service;
+
+ const unsigned short port = 4434;
+ asio_tls_server server(io_service, port);
+
+ size_t num_threads = choose_thread_count();
+ if(argc == 2)
+ std::istringstream(argv[1]) >> num_threads;
+
+ std::cout << "Using " << num_threads << " threads\n";
+
+ std::vector<boost::shared_ptr<boost::thread> > threads;
+
+ for(size_t i = 0; i != num_threads; ++i)
+ {
+ boost::shared_ptr<boost::thread> thread(
+ new boost::thread(
+ boost::bind(&boost::asio::io_service::run, &io_service)));
+ threads.push_back(thread);
+ }
+
+ // Wait for all threads in the pool to exit.
+ for (size_t i = 0; i < threads.size(); ++i)
+ threads[i]->join();
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << e.what() << std::endl;
+ }
+
+ return 0;
+ }
+
diff --git a/src/build-data/makefile/unix_shr.in b/src/build-data/makefile/unix_shr.in
index 53974c4ff..ccbbd6706 100644
--- a/src/build-data/makefile/unix_shr.in
+++ b/src/build-data/makefile/unix_shr.in
@@ -70,7 +70,7 @@ APPOBJS = %{app_objs}
# Link Commands
$(APP): $(LIBRARIES) $(APPOBJS)
- $(CXX) $(LDFLAGS) $(APPOBJS) $(SHARED_LIB) $(LINK_TO) -lboost_regex -o $(APP)
+ $(CXX) $(LDFLAGS) $(APPOBJS) $(SHARED_LIB) $(LINK_TO) -lboost_regex -lboost_thread -o $(APP)
$(STATIC_LIB): $(LIBOBJS)
$(RM) $(STATIC_LIB)