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-rw-r--r--src/rpcserver.cpp128
1 files changed, 81 insertions, 47 deletions
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index ac40ea7cf..2534a9dcf 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -39,6 +39,7 @@ static ssl::context* rpc_ssl_context = NULL;
static boost::thread_group* rpc_worker_group = NULL;
static boost::asio::io_service::work *rpc_dummy_work = NULL;
static std::vector<CSubNet> rpc_allow_subnets; //!< List of subnets to allow RPC connections from
+static std::vector< boost::shared_ptr<ip::tcp::acceptor> > rpc_acceptors;
void RPCTypeCheck(const Array& params,
const list<Value_type>& typesExpected,
@@ -444,7 +445,7 @@ template <typename Protocol, typename SocketAcceptorService>
static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
ssl::context& context,
bool fUseSSL,
- AcceptedConnection* conn,
+ boost::shared_ptr< AcceptedConnection > conn,
const boost::system::error_code& error);
/**
@@ -456,7 +457,7 @@ static void RPCListen(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketA
const bool fUseSSL)
{
// Accept connection
- AcceptedConnectionImpl<Protocol>* conn = new AcceptedConnectionImpl<Protocol>(acceptor->get_io_service(), context, fUseSSL);
+ boost::shared_ptr< AcceptedConnectionImpl<Protocol> > conn(new AcceptedConnectionImpl<Protocol>(acceptor->get_io_service(), context, fUseSSL));
acceptor->async_accept(
conn->sslStream.lowest_layer(),
@@ -466,7 +467,7 @@ static void RPCListen(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketA
boost::ref(context),
fUseSSL,
conn,
- boost::asio::placeholders::error));
+ _1));
}
@@ -477,21 +478,20 @@ template <typename Protocol, typename SocketAcceptorService>
static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
ssl::context& context,
const bool fUseSSL,
- AcceptedConnection* conn,
+ boost::shared_ptr< AcceptedConnection > conn,
const boost::system::error_code& error)
{
// Immediately start accepting new connections, except when we're cancelled or our socket is closed.
if (error != asio::error::operation_aborted && acceptor->is_open())
RPCListen(acceptor, context, fUseSSL);
- AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
+ AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn.get());
- // TODO: Actually handle errors
if (error)
{
- delete conn;
+ // TODO: Actually handle errors
+ LogPrintf("%s: Error: %s\n", __func__, error.message());
}
-
// Restrict callers by IP. It is important to
// do this before starting client thread, to filter out
// certain DoS and misbehaving clients.
@@ -500,15 +500,22 @@ static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol,
// Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
if (!fUseSSL)
conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
- delete conn;
+ conn->close();
}
else {
- ServiceConnection(conn);
+ ServiceConnection(conn.get());
conn->close();
- delete conn;
}
}
+static ip::tcp::endpoint ParseEndpoint(const std::string &strEndpoint, int defaultPort)
+{
+ std::string addr;
+ int port = defaultPort;
+ SplitHostPort(strEndpoint, port, addr);
+ return ip::tcp::endpoint(asio::ip::address::from_string(addr), port);
+}
+
void StartRPCThreads()
{
rpc_allow_subnets.clear();
@@ -590,56 +597,74 @@ void StartRPCThreads()
SSL_CTX_set_cipher_list(rpc_ssl_context->impl(), strCiphers.c_str());
}
- // Try a dual IPv6/IPv4 socket, falling back to separate IPv4 and IPv6 sockets
- const bool loopback = !mapArgs.count("-rpcallowip");
- asio::ip::address bindAddress = loopback ? asio::ip::address_v6::loopback() : asio::ip::address_v6::any();
- ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", Params().RPCPort()));
- boost::system::error_code v6_only_error;
- boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(*rpc_io_service));
-
- bool fListening = false;
- std::string strerr;
- try
+ std::vector<ip::tcp::endpoint> vEndpoints;
+ bool bBindAny = false;
+ int defaultPort = GetArg("-rpcport", Params().RPCPort());
+ if (!mapArgs.count("-rpcallowip")) // Default to loopback if not allowing external IPs
{
- acceptor->open(endpoint.protocol());
- acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
-
- // Try making the socket dual IPv6/IPv4 (if listening on the "any" address)
- acceptor->set_option(boost::asio::ip::v6_only(loopback), v6_only_error);
-
- acceptor->bind(endpoint);
- acceptor->listen(socket_base::max_connections);
-
- RPCListen(acceptor, *rpc_ssl_context, fUseSSL);
-
- fListening = true;
- }
- catch(boost::system::system_error &e)
+ vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v6::loopback(), defaultPort));
+ vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v4::loopback(), defaultPort));
+ if (mapArgs.count("-rpcbind"))
+ {
+ LogPrintf("WARNING: option -rpcbind was ignored because -rpcallowip was not specified, refusing to allow everyone to connect\n");
+ }
+ } else if (mapArgs.count("-rpcbind")) // Specific bind address
{
- strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv6, falling back to IPv4: %s"), endpoint.port(), e.what());
+ BOOST_FOREACH(const std::string &addr, mapMultiArgs["-rpcbind"])
+ {
+ try {
+ vEndpoints.push_back(ParseEndpoint(addr, defaultPort));
+ }
+ catch(boost::system::system_error &e)
+ {
+ uiInterface.ThreadSafeMessageBox(
+ strprintf(_("Could not parse -rpcbind value %s as network address"), addr),
+ "", CClientUIInterface::MSG_ERROR);
+ StartShutdown();
+ return;
+ }
+ }
+ } else { // No specific bind address specified, bind to any
+ vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v6::any(), defaultPort));
+ vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v4::any(), defaultPort));
+ // Prefer making the socket dual IPv6/IPv4 instead of binding
+ // to both addresses seperately.
+ bBindAny = true;
}
- try {
- // If dual IPv6/IPv4 failed (or we're opening loopback interfaces only), open IPv4 separately
- if (!fListening || loopback || v6_only_error)
- {
- bindAddress = loopback ? asio::ip::address_v4::loopback() : asio::ip::address_v4::any();
- endpoint.address(bindAddress);
+ bool fListening = false;
+ std::string strerr;
+ BOOST_FOREACH(const ip::tcp::endpoint &endpoint, vEndpoints)
+ {
+ asio::ip::address bindAddress = endpoint.address();
+ LogPrintf("Binding RPC on address %s port %i (IPv4+IPv6 bind any: %i)\n", bindAddress.to_string(), endpoint.port(), bBindAny);
+ boost::system::error_code v6_only_error;
+ boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(*rpc_io_service));
+ rpc_acceptors.push_back(acceptor);
- acceptor.reset(new ip::tcp::acceptor(*rpc_io_service));
+ try {
acceptor->open(endpoint.protocol());
acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
+
+ // Try making the socket dual IPv6/IPv4 when listening on the IPv6 "any" address
+ acceptor->set_option(boost::asio::ip::v6_only(
+ !bBindAny || bindAddress != asio::ip::address_v6::any()), v6_only_error);
+
acceptor->bind(endpoint);
acceptor->listen(socket_base::max_connections);
RPCListen(acceptor, *rpc_ssl_context, fUseSSL);
fListening = true;
+ // If dual IPv6/IPv4 bind succesful, skip binding to IPv4 separately
+ if(bBindAny && bindAddress == asio::ip::address_v6::any() && !v6_only_error)
+ break;
+ }
+ catch(boost::system::system_error &e)
+ {
+ LogPrintf("ERROR: Binding RPC on address %s port %i failed: %s\n", bindAddress.to_string(), endpoint.port(), e.what());
+ strerr = strprintf(_("An error occurred while setting up the RPC address %s port %u for listening: %s"), bindAddress.to_string(), endpoint.port(), e.what());
}
- }
- catch(boost::system::system_error &e)
- {
- strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv4: %s"), endpoint.port(), e.what());
}
if (!fListening) {
@@ -670,7 +695,16 @@ void StopRPCThreads()
{
if (rpc_io_service == NULL) return;
+ // First, cancel all timers and acceptors
+ // This is not done automatically by ->stop(), and in some cases the destructor of
+ // asio::io_service can hang if this is skipped.
+ BOOST_FOREACH(const boost::shared_ptr<ip::tcp::acceptor> &acceptor, rpc_acceptors)
+ acceptor->cancel();
+ rpc_acceptors.clear();
+ BOOST_FOREACH(const PAIRTYPE(std::string, boost::shared_ptr<deadline_timer>) &timer, deadlineTimers)
+ timer.second->cancel();
deadlineTimers.clear();
+
rpc_io_service->stop();
if (rpc_worker_group != NULL)
rpc_worker_group->join_all();
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-24 16:00:37 +0000