/* -*- 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 /* Some source code here from nICEr. Copyright is: 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. */ // Implementation of nICEr/nr_socket that is tied to the Gecko // SocketTransportService. #ifndef nr_socket_prsock__ #define nr_socket_prsock__ #include #include "nspr.h" #include "prio.h" #include "nsAutoPtr.h" #include "nsCOMPtr.h" #include "nsASocketHandler.h" #include "nsISocketTransportService.h" #include "nsXPCOM.h" #include "nsIEventTarget.h" #include "nsIUDPSocketChild.h" #include "nsProxyRelease.h" #include "databuffer.h" #include "m_cpp_utils.h" #include "mozilla/ReentrantMonitor.h" #include "mozilla/RefPtr.h" #include "mozilla/TimeStamp.h" // Stub declaration for nICEr type typedef struct nr_socket_vtbl_ nr_socket_vtbl; namespace mozilla { namespace net { union NetAddr; } class NrSocketBase { public: NrSocketBase() : connect_invoked_(false), poll_flags_(0) { memset(cbs_, 0, sizeof(cbs_)); memset(cb_args_, 0, sizeof(cb_args_)); memset(&my_addr_, 0, sizeof(my_addr_)); } virtual ~NrSocketBase() {} // the nr_socket APIs virtual int create(nr_transport_addr *addr) = 0; virtual int sendto(const void *msg, size_t len, int flags, nr_transport_addr *to) = 0; virtual int recvfrom(void * buf, size_t maxlen, size_t *len, int flags, nr_transport_addr *from) = 0; virtual int getaddr(nr_transport_addr *addrp) = 0; virtual void close() = 0; virtual int connect(nr_transport_addr *addr) = 0; virtual int write(const void *msg, size_t len, size_t *written) = 0; virtual int read(void* buf, size_t maxlen, size_t *len) = 0; // Implementations of the async_event APIs virtual int async_wait(int how, NR_async_cb cb, void *cb_arg, char *function, int line); virtual int cancel(int how); // nsISupport reference counted interface NS_IMETHOD_(MozExternalRefCountType) AddRef(void) = 0; NS_IMETHOD_(MozExternalRefCountType) Release(void) = 0; uint32_t poll_flags() { return poll_flags_; } virtual nr_socket_vtbl *vtbl(); // To access in test classes. static TimeStamp short_term_violation_time(); static TimeStamp long_term_violation_time(); protected: void fire_callback(int how); bool connect_invoked_; nr_transport_addr my_addr_; private: NR_async_cb cbs_[NR_ASYNC_WAIT_WRITE + 1]; void *cb_args_[NR_ASYNC_WAIT_WRITE + 1]; uint32_t poll_flags_; }; class NrSocket : public NrSocketBase, public nsASocketHandler { public: NrSocket() : fd_(nullptr) {} // Implement nsASocket virtual void OnSocketReady(PRFileDesc *fd, int16_t outflags) override; virtual void OnSocketDetached(PRFileDesc *fd) override; virtual void IsLocal(bool *aIsLocal) override; virtual uint64_t ByteCountSent() override { return 0; } virtual uint64_t ByteCountReceived() override { return 0; } // nsISupports methods NS_DECL_THREADSAFE_ISUPPORTS // Implementations of the async_event APIs virtual int async_wait(int how, NR_async_cb cb, void *cb_arg, char *function, int line) override; virtual int cancel(int how) override; // Implementations of the nr_socket APIs virtual int create(nr_transport_addr *addr) override; // (really init, but it's called create) virtual int sendto(const void *msg, size_t len, int flags, nr_transport_addr *to) override; virtual int recvfrom(void * buf, size_t maxlen, size_t *len, int flags, nr_transport_addr *from) override; virtual int getaddr(nr_transport_addr *addrp) override; virtual void close() override; virtual int connect(nr_transport_addr *addr) override; virtual int write(const void *msg, size_t len, size_t *written) override; virtual int read(void* buf, size_t maxlen, size_t *len) override; private: virtual ~NrSocket() { if (fd_) PR_Close(fd_); } DISALLOW_COPY_ASSIGN(NrSocket); PRFileDesc *fd_; nsCOMPtr ststhread_; }; struct nr_udp_message { nr_udp_message(const PRNetAddr &from, nsAutoPtr &data) : from(from), data(data) { } NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nr_udp_message); PRNetAddr from; nsAutoPtr data; private: ~nr_udp_message() {} DISALLOW_COPY_ASSIGN(nr_udp_message); }; class NrSocketIpc : public NrSocketBase { public: enum NrSocketIpcState { NR_INIT, NR_CONNECTING, NR_CONNECTED, NR_CLOSING, NR_CLOSED, }; NS_INLINE_DECL_THREADSAFE_REFCOUNTING(NrSocketIpc, override) NS_IMETHODIMP CallListenerError(const nsACString &message, const nsACString &filename, uint32_t line_number); NS_IMETHODIMP CallListenerReceivedData(const nsACString &host, uint16_t port, const uint8_t *data, uint32_t data_length); NS_IMETHODIMP CallListenerOpened(); NS_IMETHODIMP CallListenerClosed(); explicit NrSocketIpc(const nsCOMPtr &main_thread); // Implementations of the NrSocketBase APIs virtual int create(nr_transport_addr *addr) override; virtual int sendto(const void *msg, size_t len, int flags, nr_transport_addr *to) override; virtual int recvfrom(void * buf, size_t maxlen, size_t *len, int flags, nr_transport_addr *from) override; virtual int getaddr(nr_transport_addr *addrp) override; virtual void close() override; virtual int connect(nr_transport_addr *addr) override; virtual int write(const void *msg, size_t len, size_t *written) override; virtual int read(void* buf, size_t maxlen, size_t *len) override; private: virtual ~NrSocketIpc() {}; DISALLOW_COPY_ASSIGN(NrSocketIpc); // Main thread executors of the NrSocketBase APIs void create_m(const nsACString &host, const uint16_t port); void sendto_m(const net::NetAddr &addr, nsAutoPtr buf); void close_m(); // STS thread executor void recv_callback_s(RefPtr msg); bool err_; NrSocketIpcState state_; std::queue > received_msgs_; nsMainThreadPtrHandle socket_child_; nsCOMPtr sts_thread_; const nsCOMPtr main_thread_; ReentrantMonitor monitor_; }; // The socket child holds onto one of these, which just passes callbacks // through and makes sure the ref to the NrSocketIpc is released on STS. class NrSocketIpcProxy : public nsIUDPSocketInternal { public: NS_DECL_THREADSAFE_ISUPPORTS NS_DECL_NSIUDPSOCKETINTERNAL nsresult Init(const nsRefPtr& socket); private: virtual ~NrSocketIpcProxy(); nsRefPtr socket_; nsCOMPtr sts_thread_; }; int nr_netaddr_to_transport_addr(const net::NetAddr *netaddr, nr_transport_addr *addr, int protocol); int nr_praddr_to_transport_addr(const PRNetAddr *praddr, nr_transport_addr *addr, int protocol, int keep); int nr_transport_addr_get_addrstring_and_port(nr_transport_addr *addr, nsACString *host, int32_t *port); } // close namespace #endif