diff options
Diffstat (limited to 'indra/llmessage/llpacketring.cpp')
| -rwxr-xr-x[-rw-r--r--] | indra/llmessage/llpacketring.cpp | 112 |
1 files changed, 82 insertions, 30 deletions
diff --git a/indra/llmessage/llpacketring.cpp b/indra/llmessage/llpacketring.cpp index 35d5aac776..687212ea10 100644..100755 --- a/indra/llmessage/llpacketring.cpp +++ b/indra/llmessage/llpacketring.cpp @@ -2,31 +2,25 @@ * @file llpacketring.cpp * @brief implementation of LLPacketRing class for a packet. * - * $LicenseInfo:firstyear=2001&license=viewergpl$ - * - * Copyright (c) 2001-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -34,11 +28,19 @@ #include "llpacketring.h" +#if LL_WINDOWS + #include <winsock2.h> +#else + #include <sys/socket.h> + #include <netinet/in.h> +#endif + // linden library includes #include "llerror.h" #include "lltimer.h" -#include "timing.h" +#include "llproxy.h" #include "llrand.h" +#include "message.h" #include "u64.h" /////////////////////////////////////////////////////////// @@ -193,7 +195,7 @@ S32 LLPacketRing::receivePacket (S32 socket, char *datap) if (mInBufferLength + packetp->getSize() > mMaxBufferLength) { // Toss it. - llwarns << "Throwing away packet, overflowing buffer" << llendl; + LL_WARNS() << "Throwing away packet, overflowing buffer" << LL_ENDL; delete packetp; packetp = NULL; } @@ -222,8 +224,32 @@ S32 LLPacketRing::receivePacket (S32 socket, char *datap) else { // no delay, pull straight from net - packet_size = receive_packet(socket, datap); - mLastSender = ::get_sender(); + if (LLProxy::isSOCKSProxyEnabled()) + { + U8 buffer[NET_BUFFER_SIZE + SOCKS_HEADER_SIZE]; + packet_size = receive_packet(socket, static_cast<char*>(static_cast<void*>(buffer))); + + if (packet_size > SOCKS_HEADER_SIZE) + { + // *FIX We are assuming ATYP is 0x01 (IPv4), not 0x03 (hostname) or 0x04 (IPv6) + memcpy(datap, buffer + SOCKS_HEADER_SIZE, packet_size - SOCKS_HEADER_SIZE); + proxywrap_t * header = static_cast<proxywrap_t*>(static_cast<void*>(buffer)); + mLastSender.setAddress(header->addr); + mLastSender.setPort(ntohs(header->port)); + + packet_size -= SOCKS_HEADER_SIZE; // The unwrapped packet size + } + else + { + packet_size = 0; + } + } + else + { + packet_size = receive_packet(socket, datap); + mLastSender = ::get_sender(); + } + mLastReceivingIF = ::get_receiving_interface(); if (packet_size) // did we actually get a packet? @@ -249,7 +275,7 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL BOOL status = TRUE; if (!mUseOutThrottle) { - return send_packet(h_socket, send_buffer, buf_size, host.getAddress(), host.getPort() ); + return sendPacketImpl(h_socket, send_buffer, buf_size, host ); } else { @@ -270,7 +296,7 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL mOutBufferLength -= packetp->getSize(); packet_size = packetp->getSize(); - status = send_packet(h_socket, packetp->getData(), packet_size, packetp->getHost().getAddress(), packetp->getHost().getPort()); + status = sendPacketImpl(h_socket, packetp->getData(), packet_size, packetp->getHost()); delete packetp; // Update the throttle @@ -279,7 +305,7 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL else { // If the queue's empty, we can just send this packet right away. - status = send_packet(h_socket, send_buffer, buf_size, host.getAddress(), host.getPort() ); + status = sendPacketImpl(h_socket, send_buffer, buf_size, host ); packet_size = buf_size; // Update the throttle @@ -297,7 +323,7 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL { // Nuke this packet, we overflowed the buffer. // Toss it. - llwarns << "Throwing away outbound packet, overflowing buffer" << llendl; + LL_WARNS() << "Throwing away outbound packet, overflowing buffer" << LL_ENDL; } else { @@ -305,7 +331,7 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL if ((mOutBufferLength > 4192) && queue_timer.getElapsedTimeF32() > 1.f) { // Add it to the queue - llinfos << "Outbound packet queue " << mOutBufferLength << " bytes" << llendl; + LL_INFOS() << "Outbound packet queue " << mOutBufferLength << " bytes" << LL_ENDL; queue_timer.reset(); } packetp = new LLPacketBuffer(host, send_buffer, buf_size); @@ -317,3 +343,29 @@ BOOL LLPacketRing::sendPacket(int h_socket, char * send_buffer, S32 buf_size, LL return status; } + +BOOL LLPacketRing::sendPacketImpl(int h_socket, const char * send_buffer, S32 buf_size, LLHost host) +{ + + if (!LLProxy::isSOCKSProxyEnabled()) + { + return send_packet(h_socket, send_buffer, buf_size, host.getAddress(), host.getPort()); + } + + char headered_send_buffer[NET_BUFFER_SIZE + SOCKS_HEADER_SIZE]; + + proxywrap_t *socks_header = static_cast<proxywrap_t*>(static_cast<void*>(&headered_send_buffer)); + socks_header->rsv = 0; + socks_header->addr = host.getAddress(); + socks_header->port = htons(host.getPort()); + socks_header->atype = ADDRESS_IPV4; + socks_header->frag = 0; + + memcpy(headered_send_buffer + SOCKS_HEADER_SIZE, send_buffer, buf_size); + + return send_packet( h_socket, + headered_send_buffer, + buf_size + SOCKS_HEADER_SIZE, + LLProxy::getInstance()->getUDPProxy().getAddress(), + LLProxy::getInstance()->getUDPProxy().getPort()); +} |