diff options
Diffstat (limited to 'anyrtpproxy/commandHandler.cpp')
| -rw-r--r-- | anyrtpproxy/commandHandler.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/anyrtpproxy/commandHandler.cpp b/anyrtpproxy/commandHandler.cpp new file mode 100644 index 0000000..cac5c4b --- /dev/null +++ b/anyrtpproxy/commandHandler.cpp @@ -0,0 +1,200 @@ +/* + * anytun + * + * The secure anycast tunneling protocol (satp) defines a protocol used + * for communication between any combination of unicast and anycast + * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel + * mode and allows tunneling of every ETHER TYPE protocol (e.g. + * ethernet, ip, arp ...). satp directly includes cryptography and + * message authentication based on the methodes used by SRTP. It is + * intended to deliver a generic, scaleable and secure solution for + * tunneling and relaying of packets of any protocol. + * + * + * Copyright (C) 2007 anytun.org <satp@wirdorange.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <sstream> +#include <vector> + +#include <iomanip> +#include <iostream> + +#include "commandHandler.h" +#include "../buffer.h" +#include "../log.h" + +#define MAX_COMMAND_LENGTH 1000 + +CommandHandler::CommandHandler(u_int16_t lp) : running_(true), control_sock_(lp), local_address_("0.0.0.0"), local_port_(lp) +{ + pthread_create(&thread_, NULL, run, this); +} + +CommandHandler::CommandHandler(string la, u_int16_t lp) : running_(true), control_sock_(la, lp), local_address_(la), local_port_(lp) +{ + pthread_create(&thread_, NULL, run, this); +} + +CommandHandler::~CommandHandler() +{ + pthread_cancel(thread_); + pthread_join(thread_, NULL); +} + +void* CommandHandler::run(void* s) +{ + CommandHandler* self = reinterpret_cast<CommandHandler*>(s); + + Buffer buf(u_int32_t(MAX_COMMAND_LENGTH)); + try + { + string remote_host; + u_int16_t remote_port; + + int len; + while(1) + { + buf.setLength(MAX_COMMAND_LENGTH); + len = self->control_sock_.recvFrom(buf.getBuf(), buf.getLength(), remote_host, remote_port); + buf.setLength(len); + + std::string ret = self->handle(std::string(reinterpret_cast<char*>(buf.getBuf()), buf.getLength())); // TODO: reinterpret is ugly + + cLog.msg(Log::PRIO_DEBUG) << "CommandHandler received Command from " << remote_host << ":" << remote_port + << ", ret='" << ret << "'"; + + self->control_sock_.sendTo(ret.c_str(), ret.length(), remote_host, remote_port); + } + } + catch(SocketException &e) + { + self->running_ = false; + pthread_exit(NULL); + } + self->running_ = false; + pthread_exit(NULL); +} + +bool CommandHandler::isRunning() +{ + return running_; +} + + + +std::string CommandHandler::handle(std::string command) +{ + istringstream iss(command); + ostringstream oss; + std::string cookie; + std::string cmd; + + iss >> cookie; + oss << cookie << " "; + + if(iss.bad() || iss.eof()) { + oss << RET_ERR_SYNTAX; + return oss.str(); + } + iss >> cmd; + + std::vector<std::string> params; + while(!iss.bad() && !iss.eof()) { + std::string tmp; + iss >> tmp; + params.push_back(tmp); + } + + std::string ret; + switch(std::toupper(cmd[0])) + { + case CMD_REQUEST: + if(params.size() < 4) { ret = RET_ERR_SYNTAX; break; } + ret = handleRequest(cmd.erase(0,1), params[0], params[1], params[2], params[3], (params.size() < 5) ? "" : params[4]); + break; + case CMD_RESPONSE: + if(params.size() < 4) { ret = RET_ERR_SYNTAX; break; } + ret = handleResponse(cmd.erase(0,1), params[0], params[1], params[2], params[3], (params.size() < 5) ? "" : params[4]); + break; + case CMD_DELETE: + if(params.size() < 2) { ret = RET_ERR_SYNTAX; break; } + return handleDelete(params[0], params[1], (params.size() < 3) ? "" : params[2]); + case CMD_VERSION: + if(cmd.length() > 1 && cmd[1] == 'F') { + if(params.size() < 1) { ret = RET_ERR_SYNTAX; break; } + ret = handleVersionF(params[0]); + break; + } + ret = handleVersion(); + break; + case CMD_INFO: + ret = handleInfo(); + break; + default: + ret = RET_ERR_SYNTAX; + break; + } + + oss << ret; + return oss.str(); +} + +string CommandHandler::handleRequest(string modifiers, string call_id, string addr, string port, string from_tag, string to_tag) +{ + std::cout << "received request[" << modifiers << "] command ('" << call_id << "','" << addr << "','" << port + << "','" << from_tag << "','" << to_tag << "')" << std::endl; + + return RET_OK; +} + +string CommandHandler::handleResponse(string modifiers, string call_id, string addr, string port, string from_tag, string to_tag) +{ + std::cout << "received response[" << modifiers << "] command ('" << call_id << "','" << addr << "','" << port + << "','" << from_tag << "','" << to_tag << "')" << std::endl; + + return RET_OK; +} + +string CommandHandler::handleDelete(string call_id, string from_tag, string to_tag) +{ + std::cout << "received delete command ('" << call_id << "','" << from_tag << "','" << to_tag << "')" << std::endl; + + return RET_OK; +} + +string CommandHandler::handleVersion() +{ + std::cout << "received version command" << std::endl; + return BASE_VERSION; +} + +string CommandHandler::handleVersionF(string date_code) +{ + std::cout << "received version[F] command ('" << date_code << "')" << std::endl; + if(!date_code.compare(SUP_VERSION)) + return "1"; + + return "0"; +} + +string CommandHandler::handleInfo() +{ + std::cout << "received info command" << std::endl; + return RET_OK; +} + |