/
controller.cpp
1772 lines (1519 loc) · 77.7 KB
/
controller.cpp
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/*
Copyright (c) 2013, David C Horton
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <iostream>
#include <fstream>
#include <getopt.h>
#include <assert.h>
#include <pwd.h>
#include <boost/property_tree/xml_parser.hpp>
#include <boost/property_tree/ptree.hpp>
#include <boost/foreach.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/log/support/date_time.hpp>
#include <boost/log/core.hpp>
#include <boost/log/attributes.hpp>
#include <boost/log/sources/severity_logger.hpp>
#include <boost/log/sources/severity_channel_logger.hpp>
#include <boost/log/sources/record_ostream.hpp>
#include <boost/log/sinks/sync_frontend.hpp>
#include <boost/log/sinks/text_ostream_backend.hpp>
#include <boost/log/attributes/scoped_attribute.hpp>
#include <boost/log/utility/setup/common_attributes.hpp>
#include <boost/core/null_deleter.hpp>
#include <boost/assign/list_of.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/log/trivial.hpp>
#include <boost/log/common.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/attributes.hpp>
#include <boost/log/sinks.hpp>
#include <boost/log/sources/logger.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <boost/regex.hpp>
#include <jansson.h>
#include <sofia-sip/msg_addr.h>
#include <sofia-sip/sip_util.h>
#define DEFAULT_CONFIG_FILENAME "/etc/drachtio.conf.xml"
#define DEFAULT_HOMER_PORT (9060)
#define MAXLOGLEN (8192)
/* from sofia */
#define MSG_SEPARATOR \
"------------------------------------------------------------------------\n"
namespace drachtio {
class DrachtioController ;
}
#define SU_ROOT_MAGIC_T drachtio::DrachtioController
#define NTA_AGENT_MAGIC_T drachtio::DrachtioController
#define NTA_LEG_MAGIC_T drachtio::DrachtioController
#include "cdr.hpp"
#include "controller.hpp"
/* clone static functions, used to post a message into the main su event loop from the worker client controller thread */
namespace {
void my_formatter(logging::record_view const& rec, logging::formatting_ostream& strm) {
typedef boost::log::formatter formatter;
formatter f = expr::stream << expr::format_date_time<boost::posix_time::ptime>(
"TimeStamp", "%Y-%m-%d %H:%M:%S.%f") << " " <<
expr::smessage ;
f(rec, strm);
}
int clone_init( su_root_t* root, drachtio::DrachtioController* pController ) {
return 0 ;
}
void clone_destroy( su_root_t* root, drachtio::DrachtioController* pController ) {
return ;
}
void watchdogTimerHandler(su_root_magic_t *p, su_timer_t *timer, su_timer_arg_t *arg) {
theOneAndOnlyController->processWatchdogTimer() ;
}
}
namespace {
/* sofia logging is redirected to this function */
static void __sofiasip_logger_func(void *logarg, char const *fmt, va_list ap) {
static bool loggingSipMsg = false ;
static boost::shared_ptr<drachtio::StackMsg> msg ;
char output[MAXLOGLEN+1] ;
vsnprintf( output, MAXLOGLEN, fmt, ap ) ;
va_end(ap) ;
if( loggingSipMsg ) {
loggingSipMsg = NULL == ::strstr( fmt, MSG_SEPARATOR) ;
msg->appendLine( output, !loggingSipMsg ) ;
if( !loggingSipMsg ) {
//DR_LOG(drachtio::log_debug) << "Completed logging sip message" ;
DR_LOG( drachtio::log_info ) << msg->getFirstLine() << msg->getSipMessage() << " " ;
msg->isIncoming()
? theOneAndOnlyController->setLastRecvStackMessage( msg )
: theOneAndOnlyController->setLastSentStackMessage( msg ) ;
}
}
else if( ::strstr( output, "recv ") == output || ::strstr( output, "send ") == output ) {
//DR_LOG(drachtio::log_debug) << "started logging sip message: " << output ;
loggingSipMsg = true ;
char* szStartSeparator = strstr( output, " " MSG_SEPARATOR ) ;
if( NULL != szStartSeparator ) *szStartSeparator = '\0' ;
msg = boost::make_shared<drachtio::StackMsg>( output ) ;
}
else {
int len = strlen(output) ;
output[len-1] = '\0' ;
DR_LOG(drachtio::log_info) << output ;
}
} ;
int defaultLegCallback( nta_leg_magic_t* controller,
nta_leg_t* leg,
nta_incoming_t* irq,
sip_t const *sip) {
return controller->processRequestOutsideDialog( leg, irq, sip ) ;
}
int legCallback( nta_leg_magic_t* controller,
nta_leg_t* leg,
nta_incoming_t* irq,
sip_t const *sip) {
return controller->processRequestInsideDialog( leg, irq, sip ) ;
}
int stateless_callback(nta_agent_magic_t *controller,
nta_agent_t *agent,
msg_t *msg,
sip_t *sip) {
return controller->processMessageStatelessly( msg, sip ) ;
}
static boost::unordered_map<unsigned int, std::string> responseReasons = boost::assign::map_list_of
(100, "Trying")
(180, "Ringing")
(181, "Call is Being Forwarded")
(182, "Queued")
(183, "Session in Progress")
(199, "Early Dialog Terminated")
(200, "OK")
(202, "Accepted")
(204, "No Notification")
(300, "Multiple Choices")
(301, "Moved Permanently")
(302, "Moved Temporarily")
(305, "Use Proxy")
(380, "Alternative Service")
(400, "Bad Request")
(401, "Unauthorized")
(402, "Payment Required")
(403, "Forbidden")
(404, "Not Found")
(405, "Method Not Allowed")
(406, "Not Acceptable")
(407, "Proxy Authentication Required")
(408, "Request Timeout")
(409, "Conflict")
(410, "Gone")
(411, "Length Required")
(412, "Conditional Request Failed")
(413, "Request Entity Too Large")
(414, "Request-URI Too Long")
(415, "Unsupported Media Type")
(416, "Unsupported URI Scheme")
(417, "Unknown Resource-Priority")
(420, "Bad Extension")
(421, "Extension Required")
(422, "Session Interval Too Small")
(423, "Interval Too Brief")
(424, "Bad Location Information")
(428, "Use Identity Header")
(429, "Provide Referrer Identity")
(430, "Flow Failed")
(433, "Anonymity Disallowed")
(436, "Bad Identity-Info")
(437, "Unsupported Certificate")
(438, "Invalid Identity Header")
(439, "First Hop Lacks Outbound Support")
(470, "Consent Needed")
(480, "Temporarily Unavailable")
(481, "Call Leg/Transaction Does Not Exist")
(482, "Loop Detected")
(483, "Too Many Hops")
(484, "Address Incomplete")
(485, "Ambiguous")
(486, "Busy Here")
(487, "Request Terminated")
(488, "Not Acceptable Here")
(489, "Bad Event")
(491, "Request Pending")
(493, "Undecipherable")
(494, "Security Agreement Required")
(500, "Server Internal Error")
(501, "Not Implemented")
(502, "Bad Gateway")
(503, "Service Unavailable")
(504, "Server Timeout")
(505, "Version Not Supported")
(513, "Message Too Large")
(580, "Precondition Failure")
(600, "Busy Everywhere")
(603, "Decline")
(604, "Does Not Exist Anywhere")
(606, "Not Acceptable");
}
namespace drachtio {
StackMsg::StackMsg( const char *szLine ) : m_firstLine( szLine ), m_meta( szLine ), m_os(""), m_bIncoming(::strstr( szLine, "recv ") == szLine) {
}
void StackMsg::appendLine( char *szLine, bool complete ) {
if( complete ) {
m_os.flush() ;
m_sipMessage = m_os.str() ;
m_sipMessage.resize( m_sipMessage.length() - 1) ;
boost::replace_all(m_sipMessage, "\n", DR_CRLF);
}
else if( 0 == strcmp(szLine, "\n") ) {
m_os << endl ;
}
else {
int i = 0 ;
while( ' ' == szLine[i] && '\0' != szLine[i]) i++ ;
m_os << ( szLine + i ) ;
}
}
DrachtioController::DrachtioController( int argc, char* argv[] ) : m_bDaemonize(false), m_bLoggingInitialized(false),
m_configFilename(DEFAULT_CONFIG_FILENAME), m_adminPort(0), m_bNoConfig(false),
m_current_severity_threshold(log_none), m_nSofiaLoglevel(-1), m_bIsOutbound(false), m_bConsoleLogging(false),
m_nHomerPort(0), m_nHomerId(0) {
if( !parseCmdArgs( argc, argv ) ) {
usage() ;
exit(-1) ;
}
logging::add_common_attributes();
m_Config = boost::make_shared<DrachtioConfig>( m_configFilename.c_str(), m_bDaemonize ) ;
if( !m_Config->isValid() ) {
exit(-1) ;
}
this->installConfig() ;
}
DrachtioController::~DrachtioController() {
}
bool DrachtioController::installConfig() {
if( m_ConfigNew ) {
m_Config = m_ConfigNew ;
m_ConfigNew.reset();
}
if( log_none == m_current_severity_threshold ) {
m_current_severity_threshold = m_Config->getLoglevel() ;
}
if( 0 == m_requestRouter.getCountOfRoutes() ) {
m_Config->getRequestRouter( m_requestRouter ) ;
}
return true ;
}
void DrachtioController::logConfig() {
DR_LOG(log_notice) << "Logging threshold: " << (int) m_current_severity_threshold ;
vector<string> routes ;
m_requestRouter.getAllRoutes( routes ) ;
BOOST_FOREACH(string &r, routes) {
DR_LOG(log_notice) << "Route for outbound connection: " << r;
}
}
void DrachtioController::handleSigTerm( int signal ) {
DR_LOG(log_notice) << "Received SIGTERM; exiting.." ;
nta_agent_destroy(m_nta);
exit(0);
}
void DrachtioController::handleSigHup( int signal ) {
if( !m_ConfigNew ) {
DR_LOG(log_notice) << "Re-reading configuration file" ;
m_ConfigNew.reset( new DrachtioConfig( m_configFilename.c_str() ) ) ;
if( !m_ConfigNew->isValid() ) {
DR_LOG(log_error) << "Error reading configuration file; no changes will be made. Please correct the configuration file and try to reload again" ;
m_ConfigNew.reset() ;
}
}
else {
DR_LOG(log_error) << "Ignoring signal; already have a new configuration file to install" ;
}
}
bool DrachtioController::parseCmdArgs( int argc, char* argv[] ) {
int c ;
string port ;
string publicAddress ;
string localNet ;
string contact ;
vector<string> vecDnsNames;
string httpMethod = "GET";
string httpUrl ;
string method;
while (1)
{
static struct option long_options[] =
{
/* These options set a flag. */
{"daemon", no_argument, &m_bDaemonize, true},
{"noconfig", no_argument, &m_bNoConfig, true},
/* These options don't set a flag.
We distinguish them by their indices. */
{"file", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{"user", required_argument, 0, 'u'},
{"port", required_argument, 0, 'p'},
{"contact", required_argument, 0, 'c'},
{"external-ip", required_argument, 0, 'x'},
{"local-net", required_argument, 0, 'n'},
{"dns-name", required_argument, 0, 'd'},
{"http-handler", required_argument, 0, 'a'},
{"http-method", required_argument, 0, 'm'},
{"loglevel", required_argument, 0, 'l'},
{"sofia-loglevel", required_argument, 0, 's'},
{"stdout", no_argument, 0, 'b'},
{"homer", required_argument, 0, 'y'},
{"homer-id", required_argument, 0, 'z'},
{"version", no_argument, 0, 'v'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
c = getopt_long (argc, argv, "a:c:f:hi:l:m:p:n:u:vx:y:z:",
long_options, &option_index);
/* Detect the end of the options. */
if (c == -1)
break;
switch (c)
{
case 0:
/* If this option set a flag, do nothing else now. */
if (long_options[option_index].flag != 0)
break;
cout << "option " << long_options[option_index].name ;
if (optarg)
cout << " with arg " << optarg;
cout << endl ;
break;
case 'a':
httpUrl = optarg ;
break;
case 'b':
m_bConsoleLogging = true ;
break;
case 'd':
vecDnsNames.push_back(optarg);
break;
case 'f':
m_configFilename = optarg ;
break;
case 'h':
usage() ;
exit(0);
case 'l':
if( 0 == strcmp(optarg, "notice") ) m_current_severity_threshold = log_notice ;
else if( 0 == strcmp(optarg,"error") ) m_current_severity_threshold = log_error ;
else if( 0 == strcmp(optarg,"warning") ) m_current_severity_threshold = log_warning ;
else if( 0 == strcmp(optarg,"info") ) m_current_severity_threshold = log_info ;
else if( 0 == strcmp(optarg,"debug") ) m_current_severity_threshold = log_debug ;
else {
cerr << "Invalid loglevel '" << optarg << "': valid choices are notice, error, warning, info, debug" << endl ;
return false ;
}
break;
case 'm':
method = optarg ;
if( boost::iequals(method, "POST")) {
httpMethod = "POST";
}
break;
case 's':
m_nSofiaLoglevel = atoi( optarg ) ;
if( m_nSofiaLoglevel < 0 || m_nSofiaLoglevel > 9 ) {
cerr << "Invalid sofia-loglevel '" << optarg << "': valid choices 0-9 inclusive" << endl ;
return false ;
}
break;
case 'u':
m_user = optarg ;
break;
case 'c':
if( !contact.empty() ) {
m_vecTransports.push_back( boost::make_shared<SipTransport>(contact, localNet, publicAddress )) ;
contact.clear() ;
publicAddress.clear() ;
localNet.clear() ;
}
contact = optarg ;
break;
case 'x':
if( contact.empty() ) {
cerr << "'public-ip' argument must follow a 'contact'" << endl ;
return false ;
}
if (!publicAddress.empty() ) {
cerr << "multiple 'public-ip' arguments provided for a single contact" << endl ;
return false ;
}
publicAddress = optarg ;
break ;
case 'n':
if( contact.empty() ) {
cerr << "'local-net' argument must follow a 'contact'" << endl ;
return false ;
}
if (!localNet.empty() ) {
cerr << "multiple 'local-net' arguments provided for a single contact" << endl ;
return false ;
}
localNet = optarg ;
break ;
case 'p':
port = optarg ;
m_adminPort = ::atoi( port.c_str() ) ;
break;
case 'y':
{
m_nHomerPort = DEFAULT_HOMER_PORT;
vector<string>strs;
boost::split(strs, optarg, boost::is_any_of(":"));
if(strs.size() > 2) {
cerr << "invalid homer address: " << optarg << endl ;
return false ;
}
m_strHomerAddress = strs[0];
if( 2 == strs.size()) m_nHomerPort = boost::lexical_cast<uint32_t>(strs[1]);
}
break;
case 'z':
try {
m_nHomerId = boost::lexical_cast<uint32_t>(optarg);
} catch(boost::bad_lexical_cast& err) {
cerr << "--homer-id must be a positive 32-bit integer" << endl;
return false;
}
if(0 == m_nHomerId) {
cerr << "--homer-id must be a positive 32-bit integer" << endl;
return false;
}
break;
case 'v':
cout << DRACHTIO_VERSION << endl ;
exit(0) ;
case '?':
/* getopt_long already printed an error message. */
break;
default:
abort ();
}
}
if(!m_strHomerAddress.empty() && 0 == m_nHomerId) {
cerr << "--homer-id is required to specify an agent id when using --homer" << endl;
return false;
}
if( !contact.empty() ) {
boost::shared_ptr<SipTransport> p = boost::make_shared<SipTransport>(contact, localNet, publicAddress);
for( std::vector<string>::const_iterator it = vecDnsNames.begin(); it != vecDnsNames.end(); ++it) {
p->addDnsName(*it);
}
m_vecTransports.push_back(p) ;
}
if( !httpUrl.empty() ) {
m_requestRouter.addRoute("*", httpMethod, httpUrl, true);
}
/* Print any remaining command line arguments (not options). */
if (optind < argc)
{
cout << "non-option ARGV-elements: ";
while (optind < argc)
cout << argv[optind++] ;
}
return true ;
}
void DrachtioController::usage() {
cerr << endl ;
cerr << "Usage: drachtio [OPTIONS]" << endl ;
cerr << endl << "Start drachtio sip engine" << endl << endl ;
cerr << "Options:" << endl << endl ;
cerr << " --daemon Run the process as a daemon background process" << endl ;
cerr << "-c, --contact Sip contact url to bind to (see /etc/drachtio.conf.xml for examples)" << endl ;
cerr << " --dns-name specifies a DNS name that resolves to the local host, if any" << endl ;
cerr << "-f, --file Path to configuration file (default /etc/drachtio.conf.xml)" << endl ;
cerr << " --homer ip:port of homer/sipcapture agent" << endl ;
cerr << " --homer-id homer agent id to use in HEP messages to identify this server" << endl ;
cerr << " --http-handler http(s) URL to optionally send routing request to for new incoming sip request" << endl ;
cerr << " --http-method method to use with http-handler: GET (default) or POST" << endl ;
cerr << "-l --loglevel Log level (choices: notice, error, warning, info, debug)" << endl ;
cerr << " --local-net CIDR for local subnet (e.g. \"10.132.0.0/20\")" << endl ;
cerr << "-p, --port TCP port to listen on for application connections (default 9022)" << endl ;
cerr << " --sofia-loglevel Log level of internal sip stack (choices: 0-9)" << endl ;
cerr << " --external-ip External IP address to use in SIP messaging" << endl ;
cerr << " --stdout Log to standard output as well as any configured log destinations" << endl ;
cerr << "-v --version Print version and exit" << endl ;
}
void DrachtioController::daemonize() {
/* Our process ID and Session ID */
pid_t pid, sid;
/* Fork off the parent process */
pid = fork();
if (pid < 0) {
exit(EXIT_FAILURE);
}
/* If we got a good PID, then
we can exit the parent process. */
if (pid > 0) {
cout << pid ;
exit(EXIT_SUCCESS);
}
if( !m_user.empty() ) {
struct passwd *pw = getpwnam( m_user.c_str() );
if( pw ) {
int rc = setuid( pw->pw_uid ) ;
if( 0 != rc ) {
cerr << "Error setting userid to user " << m_user << ": " << errno ;
}
}
}
/* Change the file mode mask */
umask(0);
/* Create a new SID for the child process */
sid = setsid();
if (sid < 0) {
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Change the current working directory */
if ((chdir("/tmp")) < 0) {
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Close out the standard file descriptors */
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
}
src::severity_logger_mt< severity_levels >* DrachtioController::createLogger() {
if( !m_bLoggingInitialized ) this->initializeLogging() ;
return new src::severity_logger_mt< severity_levels >(keywords::severity = log_info);
}
void DrachtioController::deinitializeLogging() {
if( m_sinkSysLog ) {
logging::core::get()->remove_sink( m_sinkSysLog ) ;
m_sinkSysLog.reset() ;
}
if( m_sinkTextFile ) {
logging::core::get()->remove_sink( m_sinkTextFile ) ;
m_sinkTextFile.reset() ;
}
if( m_sinkConsole ) {
logging::core::get()->remove_sink( m_sinkConsole ) ;
m_sinkConsole.reset() ;
}
}
void DrachtioController::initializeLogging() {
try {
if( m_bNoConfig || m_Config->getConsoleLogTarget() || m_bConsoleLogging ) {
m_sinkConsole.reset(
new sinks::synchronous_sink< sinks::text_ostream_backend >()
);
m_sinkConsole->locked_backend()->add_stream( boost::shared_ptr<std::ostream>(&std::clog, boost::null_deleter()));
// flush
m_sinkConsole->locked_backend()->auto_flush(true);
m_sinkConsole->set_formatter( &my_formatter ) ;
logging::core::get()->add_sink(m_sinkConsole);
logging::core::get()->set_filter(
expr::attr<severity_levels>("Severity") <= m_current_severity_threshold
) ;
}
if( !m_bNoConfig ) {
// Create a syslog sink
sinks::syslog::facility facility ;
string syslogAddress ;
unsigned int syslogPort;
// initalize syslog sink, if configuredd
if( m_Config->getSyslogTarget( syslogAddress, syslogPort ) ) {
m_Config->getSyslogFacility( facility ) ;
m_sinkSysLog.reset(
new sinks::synchronous_sink< sinks::syslog_backend >(
keywords::use_impl = sinks::syslog::udp_socket_based
, keywords::facility = facility
)
);
// We'll have to map our custom levels to the syslog levels
sinks::syslog::custom_severity_mapping< severity_levels > mapping("Severity");
mapping[log_debug] = sinks::syslog::debug;
mapping[log_notice] = sinks::syslog::notice;
mapping[log_info] = sinks::syslog::info;
mapping[log_warning] = sinks::syslog::warning;
mapping[log_error] = sinks::syslog::critical;
m_sinkSysLog->locked_backend()->set_severity_mapper(mapping);
// Set the remote address to sent syslog messages to
m_sinkSysLog->locked_backend()->set_target_address( syslogAddress.c_str() );
logging::core::get()->add_global_attribute("RecordID", attrs::counter< unsigned int >());
// Add the sink to the core
logging::core::get()->add_sink(m_sinkSysLog);
}
//initialize text file sink, of configured
string name, archiveDirectory ;
unsigned int rotationSize, maxSize, minSize ;
bool autoFlush ;
if( m_Config->getFileLogTarget( name, archiveDirectory, rotationSize, autoFlush, maxSize, minSize ) ) {
m_sinkTextFile.reset(
new sinks::synchronous_sink< sinks::text_file_backend >(
keywords::file_name = name,
keywords::rotation_size = rotationSize * 1024 * 1024,
keywords::auto_flush = autoFlush,
keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0),
keywords::open_mode = (std::ios::out | std::ios::app),
keywords::format =
(
expr::stream
<< expr::attr< unsigned int >("RecordID")
<< ": "
<< expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S")
<< "> " << expr::smessage
)
)
);
m_sinkTextFile->set_formatter( &my_formatter ) ;
m_sinkTextFile->locked_backend()->set_file_collector(sinks::file::make_collector(
keywords::target = archiveDirectory,
keywords::max_size = maxSize * 1024 * 1024,
keywords::min_free_space = minSize * 1024 * 1024
));
logging::core::get()->add_sink(m_sinkTextFile);
}
logging::core::get()->set_filter(
expr::attr<severity_levels>("Severity") <= m_current_severity_threshold
) ;
}
m_bLoggingInitialized = true ;
}
catch (std::exception& e) {
std::cout << "FAILURE creating logger: " << e.what() << std::endl;
throw e;
}
}
void DrachtioController::run() {
if( m_bDaemonize ) {
daemonize() ;
}
/* now we can initialize logging */
m_logger.reset( this->createLogger() );
this->logConfig() ;
DR_LOG(log_debug) << "DrachtioController::run: Main thread id: " << boost::this_thread::get_id() ;
/* open admin connection */
string adminAddress ;
unsigned int adminPort = m_Config->getAdminPort( adminAddress ) ;
if( 0 != m_adminPort ) adminPort = m_adminPort ;
if( 0 != adminPort ) {
DR_LOG(log_notice) << "DrachtioController::run: listening for client connections on " << adminAddress << ":" << adminPort ;
m_pClientController.reset( new ClientController( this, adminAddress, adminPort )) ;
}
if( 0 == m_vecTransports.size() ) {
m_Config->getTransports( m_vecTransports ) ;
}
if( 0 == m_vecTransports.size() ) {
DR_LOG(log_notice) << "DrachtioController::run: no sip contacts provided, will listen on 5060 for udp and tcp " ;
m_vecTransports.push_back( boost::make_shared<SipTransport>("sip:*;transport=udp,tcp"));
}
string outboundProxy ;
if( m_Config->getSipOutboundProxy(outboundProxy) ) {
DR_LOG(log_notice) << "DrachtioController::run: outbound proxy " << outboundProxy ;
}
string tlsKeyFile, tlsCertFile, tlsChainFile ;
bool hasTlsFiles = m_Config->getTlsFiles( tlsKeyFile, tlsCertFile, tlsChainFile ) ;
string captureServer;
string captureString;
uint32_t captureId ;
unsigned int hepVersion;
unsigned int capturePort ;
if (!m_strHomerAddress.empty()) {
captureString = "udp:" + m_strHomerAddress + ":" + boost::lexical_cast<std::string>(m_nHomerPort) +
";hep=3;capture_id=" + boost::lexical_cast<std::string>(m_nHomerId);
DR_LOG(log_notice) << "DrachtioController::run - sipcapture/Homer enabled: " << captureString;
}
else if (m_Config->getCaptureServer(captureServer, capturePort, captureId, hepVersion)) {
if (hepVersion < 1 || hepVersion > 3) {
DR_LOG(log_error) << "DrachtioController::run invalid hep-version " << hepVersion <<
"; must be between 1 and 3 inclusive";
}
else {
captureString = "udp:" + captureServer + ":" + boost::lexical_cast<std::string>(capturePort) +
";hep=" + boost::lexical_cast<std::string>(hepVersion) +
";capture_id=" + boost::lexical_cast<std::string>(captureId);
DR_LOG(log_notice) << "DrachtioController::run - sipcapture/Homer enabled: " << captureString;
}
}
int rv = su_init() ;
if( rv < 0 ) {
DR_LOG(log_error) << "Error calling su_init: " << rv ;
return ;
}
::atexit(su_deinit);
if (sip_update_default_mclass(sip_extend_mclass(NULL)) < 0) {
DR_LOG(log_error) << "DrachtioController::run: Error calling sip_update_default_mclass" ;
return ;
}
m_root = su_root_create( NULL ) ;
if( NULL == m_root ) {
DR_LOG(log_error) << "DrachtioController::run: Error calling su_root_create: " ;
return ;
}
m_home = su_home_create() ;
if( NULL == m_home ) {
DR_LOG(log_error) << "DrachtioController::run: Error calling su_home_create" ;
}
su_log_redirect(NULL, __sofiasip_logger_func, NULL);
/* for now set logging to full debug */
su_log_set_level(NULL, m_nSofiaLoglevel >= 0 ? (unsigned int) m_nSofiaLoglevel : m_Config->getSofiaLogLevel() ) ;
setenv("TPORT_LOG", "1", 1) ;
/* this causes su_clone_start to start a new thread */
su_root_threading( m_root, 0 ) ;
rv = su_clone_start( m_root, m_clone, this, clone_init, clone_destroy ) ;
if( rv < 0 ) {
DR_LOG(log_error) << "DrachtioController::run: Error calling su_clone_start" ;
return ;
}
if( m_vecTransports[0]->hasExternalIp() ) {
DR_LOG(log_notice) << "DrachtioController::run: starting sip stack on local address " << m_vecTransports[0]->getContact() <<
" (external address: " << m_vecTransports[0]->getExternalIp() << ")";
}
else {
DR_LOG(log_notice) << "DrachtioController::run: starting sip stack on " << m_vecTransports[0]->getContact() ;
}
string newUrl;
m_vecTransports[0]->getBindableContactUri(newUrl) ;
/* create our agent */
bool tlsTransport = string::npos != m_vecTransports[0]->getContact().find("sips") || string::npos != m_vecTransports[0]->getContact().find("tls") ;
m_nta = nta_agent_create( m_root,
URL_STRING_MAKE(newUrl.c_str()), /* our contact address */
stateless_callback, /* no callback function */
this, /* therefore no context */
TAG_IF( !captureString.empty(), TPTAG_CAPT(captureString.c_str())),
TAG_IF( tlsTransport && hasTlsFiles, TPTAG_TLS_CERTIFICATE_KEY_FILE(tlsKeyFile.c_str())),
TAG_IF( tlsTransport && hasTlsFiles, TPTAG_TLS_CERTIFICATE_FILE(tlsCertFile.c_str())),
TAG_IF( tlsTransport && hasTlsFiles && tlsChainFile.length() > 0, TPTAG_TLS_CERTIFICATE_CHAIN_FILE(tlsChainFile.c_str())),
TAG_IF( tlsTransport &&hasTlsFiles,
TPTAG_TLS_VERSION( TPTLS_VERSION_TLSv1 | TPTLS_VERSION_TLSv1_1 | TPTLS_VERSION_TLSv1_2 )),
NTATAG_SERVER_RPORT(2), //force rport even when client does not provide
NTATAG_CLIENT_RPORT(true), //add rport on Via headers for requests we send
TAG_NULL(),
TAG_END() ) ;
if( NULL == m_nta ) {
DR_LOG(log_error) << "DrachtioController::run: Error calling nta_agent_create" ;
return ;
}
SipTransport::addTransports(m_vecTransports[0]) ;
for( vector< boost::shared_ptr<SipTransport> >::iterator it = m_vecTransports.begin() + 1; it != m_vecTransports.end(); it++ ) {
string contact = (*it)->getContact() ;
string externalIp = (*it)->getExternalIp() ;
string newUrl ;
tlsTransport = string::npos != contact.find("sips") || string::npos != contact.find("tls") ;
if( externalIp.length() ) {
DR_LOG(log_info) << "DrachtioController::run: adding additional internal sip address " << contact << " (external address: " << externalIp << ")" ;
}
else {
DR_LOG(log_info) << "DrachtioController::run: adding additional sip address " << contact ;
}
(*it)->getBindableContactUri(newUrl) ;
rv = nta_agent_add_tport(m_nta, URL_STRING_MAKE(newUrl.c_str()),
TAG_IF( !captureString.empty(), TPTAG_CAPT(captureString.c_str())),
TAG_IF( tlsTransport && hasTlsFiles, TPTAG_TLS_CERTIFICATE_KEY_FILE(tlsKeyFile.c_str())),
TAG_IF( tlsTransport && hasTlsFiles, TPTAG_TLS_CERTIFICATE_FILE(tlsCertFile.c_str())),
TAG_IF( tlsTransport && hasTlsFiles && tlsChainFile.length() > 0, TPTAG_TLS_CERTIFICATE_CHAIN_FILE(tlsChainFile.c_str())),
TAG_IF( tlsTransport &&hasTlsFiles,
TPTAG_TLS_VERSION( TPTLS_VERSION_TLSv1 | TPTLS_VERSION_TLSv1_1 | TPTLS_VERSION_TLSv1_2 )),
TAG_NULL(),
TAG_END() ) ;
if( rv < 0 ) {
DR_LOG(log_error) << "DrachtioController::run: Error adding additional transport" ;
return ;
}
SipTransport::addTransports(*it) ;
}
SipTransport::logTransports() ;
m_pDialogController = boost::make_shared<SipDialogController>( this, &m_clone ) ;
m_pProxyController = boost::make_shared<SipProxyController>( this, &m_clone ) ;
m_pPendingRequestController = boost::make_shared<PendingRequestController>( this ) ;
// set sip timers
unsigned int t1, t2, t4, t1x64 ;
m_Config->getTimers( t1, t2, t4, t1x64 );
DR_LOG(log_debug) << "DrachtioController::run - sip timers: T1: " << std::dec << t1 << "ms, T2: " << t2 << "ms, T4: " << t4 << "ms, T1X64: " << t1x64 << "ms";
nta_agent_set_params(m_nta,
NTATAG_SIP_T1(t1),
NTATAG_SIP_T2(t2),
NTATAG_SIP_T4(t4),
NTATAG_SIP_T1X64(t1x64),
TAG_END()
) ;
/* sofia event loop */
DR_LOG(log_notice) << "Starting sofia event loop in main thread: " << boost::this_thread::get_id() ;
/* start a timer */
m_timer = su_timer_create( su_root_task(m_root), 30000) ;
su_timer_set_for_ever(m_timer, watchdogTimerHandler, this) ;
su_root_run( m_root ) ;
DR_LOG(log_notice) << "Sofia event loop ended" ;
su_root_destroy( m_root ) ;
m_root = NULL ;
su_home_unref( m_home ) ;
su_deinit() ;
m_Config.reset();
this->deinitializeLogging() ;
}
int DrachtioController::processMessageStatelessly( msg_t* msg, sip_t* sip ) {
int rc = 0 ;
DR_LOG(log_debug) << "processMessageStatelessly - incoming message with call-id " << sip->sip_call_id->i_id <<
" does not match an existing call leg, processed in thread " << boost::this_thread::get_id() ;
if( sip->sip_request ) {
// sofia sanity check on message format
if( sip_sanity_check(sip) < 0 ) {
DR_LOG(log_error) << "DrachtioController::processMessageStatelessly: invalid incoming request message; discarding call-id " << sip->sip_call_id->i_id ;
nta_msg_treply( m_nta, msg, 400, NULL, TAG_END() ) ;
return -1 ;
}
tport_t* tp_incoming = nta_incoming_transport(m_nta, NULL, msg );
tport_t* tp = tport_parent( tp_incoming ) ;
const tp_name_t* tpn = tport_name( tp );
// spammer check
string action, tcpAction ;
DrachtioConfig::mapHeader2Values& mapSpammers = m_Config->getSpammers( action, tcpAction );
if( mapSpammers.size() > 0 ) {
if( 0 == strcmp( tpn->tpn_proto, "tcp") || 0 == strcmp( tpn->tpn_proto, "ws") || 0 == strcmp( tpn->tpn_proto, "wss") ) {
if( tcpAction.length() > 0 ) {
action = tcpAction ;
}
}
try {
for( DrachtioConfig::mapHeader2Values::iterator it = mapSpammers.begin(); mapSpammers.end() != it; ++it ) {
string hdrName = it->first ;
vector<string> vecValue = it->second ;
// currently limited to looking at User-Agent, From, and To
if( 0 == hdrName.compare("user-agent") && sip->sip_user_agent && sip->sip_user_agent->g_string ) {
for( std::vector<string>::iterator it = vecValue.begin(); it != vecValue.end(); ++it ) {
if( NULL != strstr( sip->sip_user_agent->g_string, (*it).c_str() ) ) {
throw runtime_error(sip->sip_user_agent->g_string) ;
}
}
}
if( 0 == hdrName.compare("to") && sip->sip_to && sip->sip_to->a_url->url_user ) {
for( std::vector<string>::iterator it = vecValue.begin(); it != vecValue.end(); ++it ) {
if( NULL != strstr( sip->sip_to->a_url->url_user, (*it).c_str() ) ) {
throw runtime_error(sip->sip_to->a_url->url_user) ;
}
}
}