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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /media/mtransport/test/stunserver.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/mtransport/test/stunserver.cpp')
-rw-r--r--media/mtransport/test/stunserver.cpp664
1 files changed, 664 insertions, 0 deletions
diff --git a/media/mtransport/test/stunserver.cpp b/media/mtransport/test/stunserver.cpp
new file mode 100644
index 000000000..7318c7c95
--- /dev/null
+++ b/media/mtransport/test/stunserver.cpp
@@ -0,0 +1,664 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Original author: ekr@rtfm.com
+
+/*
+Original code from nICEr and nrappkit.
+
+nICEr copyright:
+
+Copyright (c) 2007, Adobe Systems, Incorporated
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+* Neither the name of Adobe Systems, Network Resonance nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+nrappkit copyright:
+
+ Copyright (C) 2001-2003, Network Resonance, Inc.
+ Copyright (C) 2006, Network Resonance, Inc.
+ All Rights Reserved
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. Neither the name of Network Resonance, Inc. nor the name of any
+ contributors to this software may be used to endorse or promote
+ products derived from this software without specific prior written
+ permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+
+ ekr@rtfm.com Thu Dec 20 20:14:49 2001
+*/
+#include "logging.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Unused.h"
+#include "databuffer.h"
+
+extern "C" {
+#include "nr_api.h"
+#include "async_wait.h"
+#include "async_timer.h"
+#include "nr_socket.h"
+#include "nr_socket_local.h"
+#include "transport_addr.h"
+#include "addrs.h"
+#include "local_addr.h"
+#include "stun_util.h"
+#include "registry.h"
+#include "nr_socket_buffered_stun.h"
+}
+
+#include "stunserver.h"
+
+#include <string>
+
+MOZ_MTLOG_MODULE("stunserver");
+
+namespace mozilla {
+
+// Wrapper nr_socket which allows us to lie to the stun server about the
+// IP address.
+struct nr_socket_wrapped {
+ nr_socket *sock_;
+ nr_transport_addr addr_;
+};
+
+static int nr_socket_wrapped_destroy(void **objp) {
+ if (!objp || !*objp)
+ return 0;
+
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(*objp);
+ *objp = 0;
+
+ delete wrapped;
+
+ return 0;
+}
+
+static int nr_socket_wrapped_sendto(void *obj, const void *msg, size_t len, int flags,
+ nr_transport_addr *addr) {
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(obj);
+
+ return nr_socket_sendto(wrapped->sock_, msg, len, flags, &wrapped->addr_);
+}
+
+static int nr_socket_wrapped_recvfrom(void *obj, void * restrict buf, size_t maxlen,
+ size_t *len, int flags, nr_transport_addr *addr) {
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(obj);
+
+ return nr_socket_recvfrom(wrapped->sock_, buf, maxlen, len, flags, addr);
+}
+
+static int nr_socket_wrapped_getfd(void *obj, NR_SOCKET *fd) {
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(obj);
+
+ return nr_socket_getfd(wrapped->sock_, fd);
+}
+
+static int nr_socket_wrapped_getaddr(void *obj, nr_transport_addr *addrp) {
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(obj);
+
+ return nr_socket_getaddr(wrapped->sock_, addrp);
+}
+
+static int nr_socket_wrapped_close(void *obj) {
+ MOZ_CRASH();
+}
+
+static int nr_socket_wrapped_set_send_addr(nr_socket *sock, nr_transport_addr *addr) {
+ nr_socket_wrapped *wrapped = static_cast<nr_socket_wrapped *>(sock->obj);
+
+ return nr_transport_addr_copy(&wrapped->addr_, addr);
+}
+
+static nr_socket_vtbl nr_socket_wrapped_vtbl = {
+ 2,
+ nr_socket_wrapped_destroy,
+ nr_socket_wrapped_sendto,
+ nr_socket_wrapped_recvfrom,
+ nr_socket_wrapped_getfd,
+ nr_socket_wrapped_getaddr,
+ 0,
+ 0,
+ 0,
+ nr_socket_wrapped_close,
+ 0,
+ 0
+};
+
+int nr_socket_wrapped_create(nr_socket *inner, nr_socket **outp) {
+ auto wrapped = MakeUnique<nr_socket_wrapped>();
+
+ wrapped->sock_ = inner;
+
+ int r = nr_socket_create_int(wrapped.get(), &nr_socket_wrapped_vtbl, outp);
+ if (r)
+ return r;
+
+ Unused << wrapped.release();
+ return 0;
+}
+
+
+// Instance static.
+// Note: Calling Create() at static init time is not going to be safe, since
+// we have no reason to expect this will be initted to a nullptr yet.
+TestStunServer *TestStunServer::instance;
+TestStunTcpServer *TestStunTcpServer::instance;
+TestStunServer *TestStunServer::instance6;
+TestStunTcpServer *TestStunTcpServer::instance6;
+uint16_t TestStunServer::instance_port = 3478;
+uint16_t TestStunTcpServer::instance_port = 3478;
+
+TestStunServer::~TestStunServer() {
+ // TODO(ekr@rtfm.com): Put this on the right thread.
+
+ // Unhook callback from our listen socket.
+ if (listen_sock_) {
+ NR_SOCKET fd;
+ if (!nr_socket_getfd(listen_sock_, &fd)) {
+ NR_ASYNC_CANCEL(fd, NR_ASYNC_WAIT_READ);
+ }
+ }
+
+ // Free up stun context and network resources
+ nr_stun_server_ctx_destroy(&stun_server_);
+ nr_socket_destroy(&listen_sock_);
+ nr_socket_destroy(&send_sock_);
+
+ // Make sure we aren't still waiting on a deferred response timer to pop
+ if (timer_handle_)
+ NR_async_timer_cancel(timer_handle_);
+
+ delete response_addr_;
+}
+
+int TestStunServer::SetInternalPort(nr_local_addr *addr, uint16_t port) {
+ if (nr_transport_addr_set_port(&addr->addr, port)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't set port");
+ return R_INTERNAL;
+ }
+
+ if (nr_transport_addr_fmt_addr_string(&addr->addr)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't re-set addr string");
+ return R_INTERNAL;
+ }
+
+ return 0;
+}
+
+int TestStunServer::TryOpenListenSocket(nr_local_addr *addr, uint16_t port) {
+
+ int r = SetInternalPort(addr, port);
+
+ if (r)
+ return r;
+
+ if (nr_socket_local_create(nullptr, &addr->addr, &listen_sock_)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create listen socket");
+ return R_ALREADY;
+ }
+
+ return 0;
+}
+
+int TestStunServer::Initialize(int address_family) {
+ static const size_t max_addrs = 100;
+ nr_local_addr addrs[max_addrs];
+ int addr_ct;
+ int r;
+ int i;
+
+ r = nr_stun_find_local_addresses(addrs, max_addrs, &addr_ct);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't retrieve addresses");
+ return R_INTERNAL;
+ }
+
+ if (addr_ct < 1) {
+ MOZ_MTLOG(ML_ERROR, "No local addresses");
+ return R_INTERNAL;
+ }
+
+ for (i = 0; i < addr_ct; ++i) {
+ if (addrs[i].addr.addr->sa_family == address_family) {
+ break;
+ }
+ }
+
+ if (i == addr_ct) {
+ MOZ_MTLOG(ML_ERROR, "No local addresses of the configured IP version");
+ return R_INTERNAL;
+ }
+
+ int tries = 100;
+ while (tries--) {
+ // Bind on configured port (default 3478)
+ r = TryOpenListenSocket(&addrs[i], instance_port);
+ // We interpret R_ALREADY to mean the addr is probably in use. Try another.
+ // Otherwise, it either worked or it didn't, and we check below.
+ if (r != R_ALREADY) {
+ break;
+ }
+ ++instance_port;
+ }
+
+ if (r) {
+ return R_INTERNAL;
+ }
+
+ r = nr_socket_wrapped_create(listen_sock_, &send_sock_);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create send socket");
+ return R_INTERNAL;
+ }
+
+ r = nr_stun_server_ctx_create(const_cast<char *>("Test STUN server"),
+ send_sock_,
+ &stun_server_);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create STUN server");
+ return R_INTERNAL;
+ }
+
+ // Cache the address and port.
+ char addr_string[INET6_ADDRSTRLEN];
+ r = nr_transport_addr_get_addrstring(&addrs[i].addr, addr_string,
+ sizeof(addr_string));
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Failed to convert listen addr to a string representation");
+ return R_INTERNAL;
+ }
+
+ listen_addr_ = addr_string;
+ listen_port_ = instance_port;
+
+ return 0;
+}
+
+UniquePtr<TestStunServer> TestStunServer::Create(int address_family) {
+ NR_reg_init(NR_REG_MODE_LOCAL);
+
+ UniquePtr<TestStunServer> server(new TestStunServer());
+
+ if (server->Initialize(address_family))
+ return nullptr;
+
+ NR_SOCKET fd;
+ int r = nr_socket_getfd(server->listen_sock_, &fd);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't get fd");
+ return nullptr;
+ }
+
+ NR_ASYNC_WAIT(fd, NR_ASYNC_WAIT_READ, &TestStunServer::readable_cb, server.get());
+
+ return server;
+}
+
+void TestStunServer::ConfigurePort(uint16_t port) {
+ instance_port = port;
+}
+
+TestStunServer* TestStunServer::GetInstance(int address_family) {
+ switch (address_family) {
+ case AF_INET:
+ if (!instance)
+ instance = Create(address_family).release();
+
+ MOZ_ASSERT(instance);
+ return instance;
+ case AF_INET6:
+ if (!instance6)
+ instance6 = Create(address_family).release();
+
+ return instance6;
+ default:
+ MOZ_CRASH();
+ }
+}
+
+void TestStunServer::ShutdownInstance() {
+ delete instance;
+ instance = nullptr;
+ delete instance6;
+ instance6 = nullptr;
+}
+
+
+struct DeferredStunOperation {
+ DeferredStunOperation(TestStunServer *server,
+ const char *data, size_t len,
+ nr_transport_addr *addr,
+ nr_socket *sock) :
+ server_(server),
+ buffer_(reinterpret_cast<const uint8_t *>(data), len),
+ sock_(sock) {
+ nr_transport_addr_copy(&addr_, addr);
+ }
+
+ TestStunServer *server_;
+ DataBuffer buffer_;
+ nr_transport_addr addr_;
+ nr_socket *sock_;
+};
+
+void TestStunServer::Process(const uint8_t *msg, size_t len, nr_transport_addr *addr, nr_socket *sock) {
+
+ if (!sock) {
+ sock = send_sock_;
+ }
+
+ // Set the wrapped address so that the response goes to the right place.
+ nr_socket_wrapped_set_send_addr(sock, addr);
+
+ nr_stun_server_process_request(stun_server_, sock,
+ const_cast<char *>(reinterpret_cast<const char *>(msg)),
+ len,
+ response_addr_ ?
+ response_addr_ : addr,
+ NR_STUN_AUTH_RULE_OPTIONAL);
+}
+
+void TestStunServer::process_cb(NR_SOCKET s, int how, void *cb_arg) {
+ DeferredStunOperation *op = static_cast<DeferredStunOperation *>(cb_arg);
+ op->server_->timer_handle_ = nullptr;
+ op->server_->Process(op->buffer_.data(), op->buffer_.len(), &op->addr_, op->sock_);
+
+ delete op;
+}
+
+nr_socket* TestStunServer::GetReceivingSocket(NR_SOCKET s) {
+ return listen_sock_;
+}
+
+nr_socket* TestStunServer::GetSendingSocket(nr_socket *sock) {
+ return send_sock_;
+}
+
+void TestStunServer::readable_cb(NR_SOCKET s, int how, void *cb_arg) {
+ TestStunServer *server = static_cast<TestStunServer*>(cb_arg);
+
+ char message[max_stun_message_size];
+ size_t message_len;
+ nr_transport_addr addr;
+ nr_socket *recv_sock = server->GetReceivingSocket(s);
+ if (!recv_sock) {
+ MOZ_MTLOG(ML_ERROR, "Failed to lookup receiving socket");
+ return;
+ }
+ nr_socket *send_sock = server->GetSendingSocket(recv_sock);
+
+ /* Re-arm. */
+ NR_ASYNC_WAIT(s, NR_ASYNC_WAIT_READ, &TestStunServer::readable_cb, server);
+
+ if (nr_socket_recvfrom(recv_sock, message, sizeof(message),
+ &message_len, 0, &addr)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't read STUN message");
+ return;
+ }
+
+ MOZ_MTLOG(ML_DEBUG, "Received data of length " << message_len);
+
+ // If we have initial dropping set, check at this point.
+ std::string key(addr.as_string);
+
+ if (server->received_ct_.count(key) == 0) {
+ server->received_ct_[key] = 0;
+ }
+
+ ++server->received_ct_[key];
+
+ if (!server->active_ || (server->received_ct_[key] <= server->initial_ct_)) {
+ MOZ_MTLOG(ML_DEBUG, "Dropping message #"
+ << server->received_ct_[key] << " from " << key);
+ return;
+ }
+
+ if (server->delay_ms_) {
+ NR_ASYNC_TIMER_SET(server->delay_ms_,
+ process_cb,
+ new DeferredStunOperation(
+ server,
+ message, message_len,
+ &addr, send_sock),
+ &server->timer_handle_);
+ } else {
+ server->Process(reinterpret_cast<const uint8_t *>(message), message_len,
+ &addr, send_sock);
+ }
+}
+
+void TestStunServer::SetActive(bool active) {
+ active_ = active;
+}
+
+void TestStunServer::SetDelay(uint32_t delay_ms) {
+ delay_ms_ = delay_ms;
+}
+
+void TestStunServer::SetDropInitialPackets(uint32_t count) {
+ initial_ct_ = count;
+}
+
+nsresult TestStunServer::SetResponseAddr(nr_transport_addr *addr) {
+ delete response_addr_;
+
+ response_addr_ = new nr_transport_addr();
+
+ int r = nr_transport_addr_copy(response_addr_, addr);
+ if (r)
+ return NS_ERROR_FAILURE;
+
+ return NS_OK;
+}
+
+nsresult TestStunServer::SetResponseAddr(const std::string& addr,
+ uint16_t port) {
+ nr_transport_addr addr2;
+
+ int r = nr_str_port_to_transport_addr(addr.c_str(),
+ port, IPPROTO_UDP,
+ &addr2);
+ if (r)
+ return NS_ERROR_FAILURE;
+
+ return SetResponseAddr(&addr2);
+}
+
+void TestStunServer::Reset() {
+ delay_ms_ = 0;
+ if (timer_handle_) {
+ NR_async_timer_cancel(timer_handle_);
+ timer_handle_ = nullptr;
+ }
+ delete response_addr_;
+ response_addr_ = nullptr;
+ received_ct_.clear();
+}
+
+
+// TestStunTcpServer
+
+void TestStunTcpServer::ConfigurePort(uint16_t port) {
+ instance_port = port;
+}
+
+TestStunTcpServer* TestStunTcpServer::GetInstance(int address_family) {
+ switch (address_family) {
+ case AF_INET:
+ if (!instance)
+ instance = Create(address_family).release();
+
+ MOZ_ASSERT(instance);
+ return instance;
+ case AF_INET6:
+ if (!instance6)
+ instance6 = Create(address_family).release();
+
+ return instance6;
+ default:
+ MOZ_CRASH();
+ }
+}
+
+void TestStunTcpServer::ShutdownInstance() {
+ delete instance;
+ instance = nullptr;
+ delete instance6;
+ instance6 = nullptr;
+}
+
+int TestStunTcpServer::TryOpenListenSocket(nr_local_addr *addr, uint16_t port) {
+
+ addr->addr.protocol=IPPROTO_TCP;
+
+ int r = SetInternalPort(addr, port);
+
+ if (r)
+ return r;
+
+ nr_socket *sock;
+ if (nr_socket_local_create(nullptr, &addr->addr, &sock)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create listen tcp socket");
+ return R_ALREADY;
+ }
+
+ if (nr_socket_buffered_stun_create(sock, 2048, TURN_TCP_FRAMING, &listen_sock_)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create listen tcp socket");
+ return R_ALREADY;
+ }
+
+ if(nr_socket_listen(listen_sock_, 10)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't listen on socket");
+ return R_ALREADY;
+ }
+
+ return 0;
+}
+
+nr_socket* TestStunTcpServer::GetReceivingSocket(NR_SOCKET s) {
+ return connections_[s];
+}
+
+nr_socket* TestStunTcpServer::GetSendingSocket(nr_socket *sock) {
+ return sock;
+}
+
+void TestStunTcpServer::accept_cb(NR_SOCKET s, int how, void *cb_arg) {
+ TestStunTcpServer *server = static_cast<TestStunTcpServer*>(cb_arg);
+ nr_socket *newsock, *bufsock, *wrapsock;
+ nr_transport_addr remote_addr;
+ NR_SOCKET fd;
+
+ /* rearm */
+ NR_ASYNC_WAIT(s, NR_ASYNC_WAIT_READ, &TestStunTcpServer::accept_cb, cb_arg);
+
+ /* accept */
+ if (nr_socket_accept(server->listen_sock_, &remote_addr, &newsock)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't accept incoming tcp connection");
+ return;
+ }
+
+ if(nr_socket_buffered_stun_create(newsock, 2048, TURN_TCP_FRAMING, &bufsock)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create connected tcp socket");
+ nr_socket_destroy(&newsock);
+ return;
+ }
+
+ nr_socket_buffered_set_connected_to(bufsock, &remote_addr);
+
+ if(nr_socket_wrapped_create(bufsock, &wrapsock)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't wrap connected tcp socket");
+ nr_socket_destroy(&bufsock);
+ return;
+ }
+
+ if(nr_socket_getfd(wrapsock, &fd)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't get fd from connected tcp socket");
+ nr_socket_destroy(&wrapsock);
+ return;
+ }
+
+ server->connections_[fd] = wrapsock;
+
+ NR_ASYNC_WAIT(fd, NR_ASYNC_WAIT_READ, &TestStunServer::readable_cb, server);
+}
+
+ UniquePtr<TestStunTcpServer> TestStunTcpServer::Create(int address_family) {
+ NR_reg_init(NR_REG_MODE_LOCAL);
+
+ UniquePtr<TestStunTcpServer> server(new TestStunTcpServer());
+
+ if (server->Initialize(address_family)) {
+ return nullptr;
+ }
+
+ NR_SOCKET fd;
+ if(nr_socket_getfd(server->listen_sock_, &fd)) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't get tcp fd");
+ return nullptr;
+ }
+
+ NR_ASYNC_WAIT(fd, NR_ASYNC_WAIT_READ, &TestStunTcpServer::accept_cb, server.get());
+
+ return server;
+}
+
+TestStunTcpServer::~TestStunTcpServer() {
+ for (auto it = connections_.begin(); it != connections_.end();) {
+ NR_ASYNC_CANCEL(it->first, NR_ASYNC_WAIT_READ);
+ nr_socket_destroy(&it->second);
+ connections_.erase(it++);
+ }
+}
+
+} // close namespace