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transmission/libtransmission/session.c

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/*
* This file Copyright (C) 2008-2010 Mnemosyne LLC
*
* This file is licensed by the GPL version 2. Works owned by the
* Transmission project are granted a special exemption to clause 2(b)
* so that the bulk of its code can remain under the MIT license.
* This exemption does not extend to derived works not owned by
* the Transmission project.
*
* $Id$
*/
#include <assert.h>
#include <errno.h> /* ENOENT */
#include <stdlib.h>
#include <string.h> /* memcpy */
#include <signal.h>
#include <sys/types.h> /* stat(), umask() */
#include <sys/stat.h> /* stat(), umask() */
#include <unistd.h> /* stat */
#include <dirent.h> /* opendir */
#include <event.h>
#include "transmission.h"
#include "announcer.h"
#include "bandwidth.h"
#include "bencode.h"
#include "blocklist.h"
#include "crypto.h"
#include "fdlimit.h"
#include "list.h"
#include "metainfo.h" /* tr_metainfoFree */
#include "net.h"
#include "peer-io.h"
#include "peer-mgr.h"
#include "platform.h" /* tr_lock */
#include "port-forwarding.h"
#include "rpc-server.h"
#include "session.h"
#include "stats.h"
#include "torrent.h"
#include "tr-dht.h"
#include "trevent.h"
#include "utils.h"
#include "verify.h"
#include "version.h"
#include "web.h"
enum
{
SAVE_INTERVAL_SECS = 120
};
#define dbgmsg( ... ) \
do { \
if( tr_deepLoggingIsActive( ) ) \
tr_deepLog( __FILE__, __LINE__, NULL, __VA_ARGS__ ); \
} while( 0 )
static tr_port
getRandomPort( tr_session * s )
{
return tr_cryptoWeakRandInt( s->randomPortHigh - s->randomPortLow + 1) + s->randomPortLow;
}
/* Generate a peer id : "-TRxyzb-" + 12 random alphanumeric
characters, where x is the major version number, y is the
minor version number, z is the maintenance number, and b
designates beta (Azureus-style) */
uint8_t*
tr_peerIdNew( void )
{
int i;
int val;
int total = 0;
uint8_t * buf = tr_new( uint8_t, 21 );
const char * pool = "0123456789abcdefghijklmnopqrstuvwxyz";
const int base = 36;
memcpy( buf, PEERID_PREFIX, 8 );
for( i = 8; i < 19; ++i )
{
val = tr_cryptoRandInt( base );
total += val;
buf[i] = pool[val];
}
val = total % base ? base - ( total % base ) : 0;
buf[19] = pool[val];
buf[20] = '\0';
return buf;
}
const uint8_t*
tr_getPeerId( void )
{
static uint8_t * id = NULL;
if( id == NULL )
id = tr_peerIdNew( );
return id;
}
/***
****
***/
tr_encryption_mode
tr_sessionGetEncryption( tr_session * session )
{
assert( session );
return session->encryptionMode;
}
void
tr_sessionSetEncryption( tr_session * session,
tr_encryption_mode mode )
{
assert( session );
assert( mode == TR_ENCRYPTION_PREFERRED
|| mode == TR_ENCRYPTION_REQUIRED
|| mode == TR_CLEAR_PREFERRED );
session->encryptionMode = mode;
}
/***
****
***/
struct tr_bindinfo
{
int socket;
tr_address addr;
struct event ev;
};
static void
close_bindinfo( struct tr_bindinfo * b )
{
if( ( b != NULL ) && ( b->socket >=0 ) )
{
event_del( &b->ev );
tr_netCloseSocket( b->socket );
}
}
static void
close_incoming_peer_port( tr_session * session )
{
close_bindinfo( session->public_ipv4 );
close_bindinfo( session->public_ipv6 );
}
static void
free_incoming_peer_port( tr_session * session )
{
close_bindinfo( session->public_ipv4 );
tr_free( session->public_ipv4 );
session->public_ipv4 = NULL;
close_bindinfo( session->public_ipv6 );
tr_free( session->public_ipv6 );
session->public_ipv6 = NULL;
}
static void
accept_incoming_peer( int fd, short what UNUSED, void * vsession )
{
int clientSocket;
tr_port clientPort;
tr_address clientAddr;
tr_session * session = vsession;
clientSocket = tr_netAccept( session, fd, &clientAddr, &clientPort );
if( clientSocket > 0 ) {
tr_deepLog( __FILE__, __LINE__, NULL, "new incoming connection %d (%s)",
clientSocket, tr_peerIoAddrStr( &clientAddr, clientPort ) );
tr_peerMgrAddIncoming( session->peerMgr, &clientAddr, clientPort, clientSocket );
}
}
static void
open_incoming_peer_port( tr_session * session )
{
struct tr_bindinfo * b;
/* bind an ipv4 port to listen for incoming peers... */
b = session->public_ipv4;
b->socket = tr_netBindTCP( &b->addr, session->peerPort, FALSE );
if( b->socket >= 0 ) {
event_set( &b->ev, b->socket, EV_READ | EV_PERSIST, accept_incoming_peer, session );
event_add( &b->ev, NULL );
}
/* and do the exact same thing for ipv6, if it's supported... */
if( tr_net_hasIPv6( session->peerPort ) ) {
b = session->public_ipv6;
b->socket = tr_netBindTCP( &b->addr, session->peerPort, FALSE );
if( b->socket >= 0 ) {
event_set( &b->ev, b->socket, EV_READ | EV_PERSIST, accept_incoming_peer, session );
event_add( &b->ev, NULL );
}
}
}
const tr_address*
tr_sessionGetPublicAddress( const tr_session * session, int tr_af_type )
{
switch( tr_af_type )
{
case TR_AF_INET: return &session->public_ipv4->addr;
case TR_AF_INET6: return &session->public_ipv6->addr; break;
default: return NULL;
}
}
/***
****
***/
#ifdef TR_EMBEDDED
#define TR_DEFAULT_ENCRYPTION TR_CLEAR_PREFERRED
#else
#define TR_DEFAULT_ENCRYPTION TR_ENCRYPTION_PREFERRED
#endif
void
tr_sessionGetDefaultSettings( const char * configDir, tr_benc * d )
{
char * incompleteDir = tr_buildPath( configDir, "Incomplete", NULL );
assert( tr_bencIsDict( d ) );
tr_bencDictReserve( d, 35 );
tr_bencDictAddBool( d, TR_PREFS_KEY_BLOCKLIST_ENABLED, FALSE );
tr_bencDictAddBool( d, TR_PREFS_KEY_DHT_ENABLED, TRUE );
tr_bencDictAddStr ( d, TR_PREFS_KEY_DOWNLOAD_DIR, tr_getDefaultDownloadDir( ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DSPEED, 100 );
tr_bencDictAddBool( d, TR_PREFS_KEY_DSPEED_ENABLED, FALSE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ENCRYPTION, TR_DEFAULT_ENCRYPTION );
tr_bencDictAddStr ( d, TR_PREFS_KEY_INCOMPLETE_DIR, incompleteDir );
tr_bencDictAddBool( d, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, FALSE );
tr_bencDictAddBool( d, TR_PREFS_KEY_LAZY_BITFIELD, TRUE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MSGLEVEL, TR_MSG_INF );
tr_bencDictAddInt ( d, TR_PREFS_KEY_OPEN_FILE_LIMIT, atoi( TR_DEFAULT_OPEN_FILE_LIMIT_STR ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, atoi( TR_DEFAULT_PEER_LIMIT_GLOBAL_STR ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_TORRENT, atoi( TR_DEFAULT_PEER_LIMIT_TORRENT_STR ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT, atoi( TR_DEFAULT_PEER_PORT_STR ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, FALSE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, 49152 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, 65535 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_SOCKET_TOS, atoi( TR_DEFAULT_PEER_SOCKET_TOS_STR ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEX_ENABLED, TRUE );
tr_bencDictAddBool( d, TR_PREFS_KEY_PORT_FORWARDING, TRUE );
#ifdef HAVE_FALLOCATE64
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREALLOCATION, TR_PREALLOCATE_FULL );
#else
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREALLOCATION, TR_PREALLOCATE_SPARSE );
#endif
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY, "" );
tr_bencDictAddBool( d, TR_PREFS_KEY_PROXY_AUTH_ENABLED, FALSE );
tr_bencDictAddBool( d, TR_PREFS_KEY_PROXY_ENABLED, FALSE );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY_PASSWORD, "" );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PROXY_PORT, 80 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PROXY_TYPE, TR_PROXY_HTTP );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY_USERNAME, "" );
tr_bencDictAddReal( d, TR_PREFS_KEY_RATIO, 2.0 );
tr_bencDictAddBool( d, TR_PREFS_KEY_RATIO_ENABLED, FALSE );
tr_bencDictAddBool( d, TR_PREFS_KEY_RENAME_PARTIAL_FILES, TRUE );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_AUTH_REQUIRED, FALSE );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_BIND_ADDRESS, "0.0.0.0" );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_ENABLED, TRUE );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_PASSWORD, "" );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_USERNAME, "" );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_WHITELIST, TR_DEFAULT_RPC_WHITELIST );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_WHITELIST_ENABLED, TRUE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_RPC_PORT, atoi( TR_DEFAULT_RPC_PORT_STR ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_ENABLED, FALSE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_UP, 50 ); /* half the regular */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_DOWN, 50 ); /* half the regular */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, 540 ); /* 9am */
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, FALSE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_END, 1020 ); /* 5pm */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, TR_SCHED_ALL );
tr_bencDictAddInt ( d, TR_PREFS_KEY_USPEED, 100 );
tr_bencDictAddBool( d, TR_PREFS_KEY_USPEED_ENABLED, FALSE );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UMASK, 022 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, 14 );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV4, TR_DEFAULT_BIND_ADDRESS_IPV4 );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV6, TR_DEFAULT_BIND_ADDRESS_IPV6 );
tr_bencDictAddBool( d, TR_PREFS_KEY_START, TRUE );
tr_bencDictAddBool( d, TR_PREFS_KEY_TRASH_ORIGINAL, FALSE );
tr_free( incompleteDir );
}
void
tr_sessionGetSettings( tr_session * s, struct tr_benc * d )
{
assert( tr_bencIsDict( d ) );
tr_bencDictReserve( d, 30 );
tr_bencDictAddBool( d, TR_PREFS_KEY_BLOCKLIST_ENABLED, tr_blocklistIsEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_DHT_ENABLED, s->isDHTEnabled );
tr_bencDictAddStr ( d, TR_PREFS_KEY_DOWNLOAD_DIR, s->downloadDir );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DSPEED, tr_sessionGetSpeedLimit( s, TR_DOWN ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_DSPEED_ENABLED, tr_sessionIsSpeedLimited( s, TR_DOWN ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ENCRYPTION, s->encryptionMode );
tr_bencDictAddStr ( d, TR_PREFS_KEY_INCOMPLETE_DIR, tr_sessionGetIncompleteDir( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, tr_sessionIsIncompleteDirEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_LAZY_BITFIELD, s->useLazyBitfield );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MSGLEVEL, tr_getMessageLevel( ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_OPEN_FILE_LIMIT, tr_fdGetFileLimit( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, tr_sessionGetPeerLimit( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_TORRENT, s->peerLimitPerTorrent );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT, tr_sessionGetPeerPort( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, s->isPortRandom );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, s->randomPortLow );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, s->randomPortHigh );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_SOCKET_TOS, s->peerSocketTOS );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEX_ENABLED, s->isPexEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_PORT_FORWARDING, tr_sessionIsPortForwardingEnabled( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREALLOCATION, s->preallocationMode );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY, s->proxy );
tr_bencDictAddBool( d, TR_PREFS_KEY_PROXY_AUTH_ENABLED, s->isProxyAuthEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_PROXY_ENABLED, s->isProxyEnabled );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY_PASSWORD, s->proxyPassword );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PROXY_PORT, s->proxyPort );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PROXY_TYPE, s->proxyType );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PROXY_USERNAME, s->proxyUsername );
tr_bencDictAddReal( d, TR_PREFS_KEY_RATIO, s->desiredRatio );
tr_bencDictAddBool( d, TR_PREFS_KEY_RATIO_ENABLED, s->isRatioLimited );
tr_bencDictAddBool( d, TR_PREFS_KEY_RENAME_PARTIAL_FILES, tr_sessionIsIncompleteFileNamingEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_AUTH_REQUIRED, tr_sessionIsRPCPasswordEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_BIND_ADDRESS, tr_sessionGetRPCBindAddress( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_ENABLED, tr_sessionIsRPCEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_PASSWORD, tr_sessionGetRPCPassword( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_RPC_PORT, tr_sessionGetRPCPort( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_USERNAME, tr_sessionGetRPCUsername( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_WHITELIST, tr_sessionGetRPCWhitelist( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_WHITELIST_ENABLED, tr_sessionGetRPCWhitelistEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_ENABLED, tr_sessionUsesAltSpeed( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_UP, tr_sessionGetAltSpeed( s, TR_UP ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_DOWN, tr_sessionGetAltSpeed( s, TR_DOWN ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, tr_sessionGetAltSpeedBegin( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, tr_sessionUsesAltSpeedTime( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_END, tr_sessionGetAltSpeedEnd( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, tr_sessionGetAltSpeedDay( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_USPEED, tr_sessionGetSpeedLimit( s, TR_UP ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_USPEED_ENABLED, tr_sessionIsSpeedLimited( s, TR_UP ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UMASK, s->umask );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, s->uploadSlotsPerTorrent );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV4, tr_ntop_non_ts( &s->public_ipv4->addr ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV6, tr_ntop_non_ts( &s->public_ipv6->addr ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_START, !tr_sessionGetPaused( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_TRASH_ORIGINAL, tr_sessionGetDeleteSource( s ) );
}
tr_bool
tr_sessionLoadSettings( tr_benc * d, const char * configDir, const char * appName )
{
int err = 0;
char * filename;
tr_benc fileSettings;
tr_benc sessionDefaults;
tr_benc tmp;
tr_bool success = FALSE;
assert( tr_bencIsDict( d ) );
/* initializing the defaults: caller may have passed in some app-level defaults.
* preserve those and use the session defaults to fill in any missing gaps. */
tr_bencInitDict( &sessionDefaults, 0 );
tr_sessionGetDefaultSettings( configDir, &sessionDefaults );
tr_bencMergeDicts( &sessionDefaults, d );
tmp = *d; *d = sessionDefaults; sessionDefaults = tmp;
/* if caller didn't specify a config dir, use the default */
if( !configDir || !*configDir )
configDir = tr_getDefaultConfigDir( appName );
/* file settings override the defaults */
filename = tr_buildPath( configDir, "settings.json", NULL );
err = tr_bencLoadFile( &fileSettings, TR_FMT_JSON, filename );
if( !err ) {
tr_bencMergeDicts( d, &fileSettings );
tr_bencFree( &fileSettings );
}
/* cleanup */
tr_bencFree( &sessionDefaults );
tr_free( filename );
success = (err==0) || (err==ENOENT);
return success;
}
void
tr_sessionSaveSettings( tr_session * session,
const char * configDir,
const tr_benc * clientSettings )
{
tr_benc settings;
char * filename = tr_buildPath( configDir, "settings.json", NULL );
assert( tr_bencIsDict( clientSettings ) );
tr_bencInitDict( &settings, 0 );
/* the existing file settings are the fallback values */
{
tr_benc fileSettings;
const int err = tr_bencLoadFile( &fileSettings, TR_FMT_JSON, filename );
if( !err )
{
tr_bencMergeDicts( &settings, &fileSettings );
tr_bencFree( &fileSettings );
}
}
/* the client's settings override the file settings */
tr_bencMergeDicts( &settings, clientSettings );
/* the session's true values override the file & client settings */
{
tr_benc sessionSettings;
tr_bencInitDict( &sessionSettings, 0 );
tr_sessionGetSettings( session, &sessionSettings );
tr_bencMergeDicts( &settings, &sessionSettings );
tr_bencFree( &sessionSettings );
}
/* save the result */
tr_bencToFile( &settings, TR_FMT_JSON, filename );
/* cleanup */
tr_free( filename );
tr_bencFree( &settings );
}
/***
****
***/
/**
* Periodically save the .resume files of any torrents whose
* status has recently changed. This prevents loss of metadata
* in the case of a crash, unclean shutdown, clumsy user, etc.
*/
static void
onSaveTimer( int foo UNUSED, short bar UNUSED, void * vsession )
{
tr_torrent * tor = NULL;
tr_session * session = vsession;
while(( tor = tr_torrentNext( session, tor )))
tr_torrentSave( tor );
tr_statsSaveDirty( session );
tr_timerAdd( session->saveTimer, SAVE_INTERVAL_SECS, 0 );
}
/***
****
***/
static void tr_sessionInitImpl( void * );
struct init_data
{
tr_session * session;
const char * configDir;
tr_bool done;
tr_bool messageQueuingEnabled;
tr_benc * clientSettings;
};
tr_session *
tr_sessionInit( const char * tag,
const char * configDir,
tr_bool messageQueuingEnabled,
tr_benc * clientSettings )
{
int64_t i;
tr_session * session;
struct init_data data;
tr_msgInit( );
assert( tr_bencIsDict( clientSettings ) );
/* initialize the bare skeleton of the session object */
session = tr_new0( tr_session, 1 );
session->bandwidth = tr_bandwidthNew( session, NULL );
session->lock = tr_lockNew( );
session->tag = tr_strdup( tag );
session->magicNumber = SESSION_MAGIC_NUMBER;
session->buffer = tr_valloc( SESSION_BUFFER_SIZE );
tr_bencInitList( &session->removedTorrents, 0 );
/* nice to start logging at the very beginning */
if( tr_bencDictFindInt( clientSettings, TR_PREFS_KEY_MSGLEVEL, &i ) )
tr_setMessageLevel( i );
/* start the libtransmission thread */
tr_netInit( ); /* must go before tr_eventInit */
tr_eventInit( session );
assert( session->events != NULL );
/* run the rest in the libtransmission thread */
data.done = FALSE;
data.session = session;
data.configDir = configDir;
data.messageQueuingEnabled = messageQueuingEnabled;
data.clientSettings = clientSettings;
tr_runInEventThread( session, tr_sessionInitImpl, &data );
while( !data.done )
tr_wait_msec( 100 );
return session;
}
static void turtleCheckClock( tr_session * s, struct tr_turtle_info * t );
static void
onNowTimer( int foo UNUSED, short bar UNUSED, void * vsession )
{
int usec;
const int min = 100;
const int max = 999999;
struct timeval tv;
tr_session * session = vsession;
assert( tr_isSession( session ) );
assert( session->nowTimer != NULL );
/* schedule the next timer for right after the next second begins */
gettimeofday( &tv, NULL );
usec = 1000000 - tv.tv_usec;
if( usec > max ) usec = max;
if( usec < min ) usec = min;
tr_timerAdd( session->nowTimer, 0, usec );
/* fprintf( stderr, "time %zu sec, %zu microsec\n", (size_t)tr_time(), (size_t)tv.tv_usec ); */
/* tr_session things to do once per second */
tr_timeUpdate( tv.tv_sec );
if( session->turtle.isClockEnabled )
turtleCheckClock( session, &session->turtle );
}
static void loadBlocklists( tr_session * session );
static void
tr_sessionInitImpl( void * vdata )
{
tr_benc settings;
struct init_data * data = vdata;
tr_benc * clientSettings = data->clientSettings;
tr_session * session = data->session;
assert( tr_amInEventThread( session ) );
assert( tr_bencIsDict( clientSettings ) );
dbgmsg( "tr_sessionInit: the session's top-level bandwidth object is %p",
session->bandwidth );
tr_bencInitDict( &settings, 0 );
tr_sessionGetDefaultSettings( data->configDir, &settings );
tr_bencMergeDicts( &settings, clientSettings );
session->nowTimer = tr_new0( struct event, 1 );
evtimer_set( session->nowTimer, onNowTimer, session );
onNowTimer( 0, 0, session );
#ifndef WIN32
/* Don't exit when writing on a broken socket */
signal( SIGPIPE, SIG_IGN );
#endif
tr_setMessageQueuing( data->messageQueuingEnabled );
tr_setConfigDir( session, data->configDir );
session->peerMgr = tr_peerMgrNew( session );
session->shared = tr_sharedInit( session );
/**
*** Blocklist
**/
{
char * filename = tr_buildPath( session->configDir, "blocklists", NULL );
tr_mkdirp( filename, 0777 );
tr_free( filename );
loadBlocklists( session );
}
assert( tr_isSession( session ) );
session->saveTimer = tr_new0( struct event, 1 );
evtimer_set( session->saveTimer, onSaveTimer, session );
tr_timerAdd( session->saveTimer, SAVE_INTERVAL_SECS, 0 );
tr_announcerInit( session );
/* first %s is the application name
second %s is the version number */
tr_inf( _( "%s %s started" ), TR_NAME, LONG_VERSION_STRING );
tr_statsInit( session );
tr_webInit( session );
tr_sessionSet( session, &settings );
if( session->isDHTEnabled )
{
tr_dhtInit( session, &session->public_ipv4->addr );
}
/* cleanup */
tr_bencFree( &settings );
data->done = TRUE;
}
static void turtleBootstrap( tr_session *, struct tr_turtle_info * );
static void
sessionSetImpl( void * vdata )
{
int64_t i;
double d;
tr_bool boolVal;
const char * str;
struct tr_bindinfo b;
struct init_data * data = vdata;
tr_session * session = data->session;
tr_benc * settings = data->clientSettings;
struct tr_turtle_info * turtle = &session->turtle;
assert( tr_isSession( session ) );
assert( tr_bencIsDict( settings ) );
assert( tr_amInEventThread( session ) );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_MSGLEVEL, &i ) )
tr_setMessageLevel( i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_UMASK, &i ) ) {
session->umask = (mode_t)i;
umask( session->umask );
}
/* misc features */
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_LAZY_BITFIELD, &boolVal ) )
tr_sessionSetLazyBitfieldEnabled( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_LIMIT_TORRENT, &i ) )
tr_sessionSetPeerLimitPerTorrent( session, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PEX_ENABLED, &boolVal ) )
tr_sessionSetPexEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_DHT_ENABLED, &boolVal ) )
tr_sessionSetDHTEnabled( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ENCRYPTION, &i ) )
tr_sessionSetEncryption( session, i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_SOCKET_TOS, &i ) )
session->peerSocketTOS = i;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_BLOCKLIST_ENABLED, &boolVal ) )
tr_blocklistSetEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_START, &boolVal ) )
tr_sessionSetPaused( session, !boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_TRASH_ORIGINAL, &boolVal) )
tr_sessionSetDeleteSource( session, boolVal );
/* files and directories */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PREALLOCATION, &i ) )
session->preallocationMode = i;
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_DOWNLOAD_DIR, &str ) )
tr_sessionSetDownloadDir( session, str );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_INCOMPLETE_DIR, &str ) )
tr_sessionSetIncompleteDir( session, str );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, &boolVal ) )
tr_sessionSetIncompleteDirEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_RENAME_PARTIAL_FILES, &boolVal ) )
tr_sessionSetIncompleteFileNamingEnabled( session, boolVal );
/* proxies */
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PROXY_ENABLED, &boolVal ) )
tr_sessionSetProxyEnabled( session, boolVal );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_PROXY, &str ) )
tr_sessionSetProxy( session, str );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PROXY_PORT, &i ) )
tr_sessionSetProxyPort( session, i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PROXY_TYPE, &i ) )
tr_sessionSetProxyType( session, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PROXY_AUTH_ENABLED, &boolVal ) )
tr_sessionSetProxyAuthEnabled( session, boolVal );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_PROXY_USERNAME, &str ) )
tr_sessionSetProxyUsername( session, str );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_PROXY_PASSWORD, &str ) )
tr_sessionSetProxyPassword( session, str );
/* rpc server */
if( session->rpcServer != NULL ) /* close the old one */
tr_rpcClose( &session->rpcServer );
session->rpcServer = tr_rpcInit( session, settings );
/* public addresses */
free_incoming_peer_port( session );
str = TR_PREFS_KEY_BIND_ADDRESS_IPV4;
tr_bencDictFindStr( settings, TR_PREFS_KEY_BIND_ADDRESS_IPV4, &str );
if( !tr_pton( str, &b.addr ) || ( b.addr.type != TR_AF_INET ) )
b.addr = tr_inaddr_any;
b.socket = -1;
session->public_ipv4 = tr_memdup( &b, sizeof( struct tr_bindinfo ) );
tr_webSetInterface( session, &session->public_ipv4->addr );
str = TR_PREFS_KEY_BIND_ADDRESS_IPV6;
tr_bencDictFindStr( settings, TR_PREFS_KEY_BIND_ADDRESS_IPV6, &str );
if( !tr_pton( str, &b.addr ) || ( b.addr.type != TR_AF_INET6 ) )
b.addr = tr_in6addr_any;
b.socket = -1;
session->public_ipv6 = tr_memdup( &b, sizeof( struct tr_bindinfo ) );
/* incoming peer port */
if( tr_bencDictFindInt ( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, &i ) )
session->randomPortLow = i;
if( tr_bencDictFindInt ( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, &i ) )
session->randomPortHigh = i;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, &boolVal ) )
tr_sessionSetPeerPortRandomOnStart( session, boolVal );
if( !tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_PORT, &i ) )
i = session->peerPort;
tr_sessionSetPeerPort( session, boolVal ? getRandomPort( session ) : i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PORT_FORWARDING, &boolVal ) )
tr_sessionSetPortForwardingEnabled( session, boolVal );
/* file and peer socket limits */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, &i ) )
tr_fdSetPeerLimit( session, i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_OPEN_FILE_LIMIT, &i ) )
tr_fdSetFileLimit( session, i );
/**
**/
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, &i ) )
session->uploadSlotsPerTorrent = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_USPEED, &i ) )
tr_sessionSetSpeedLimit( session, TR_UP, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_USPEED_ENABLED, &boolVal ) )
tr_sessionLimitSpeed( session, TR_UP, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_DSPEED, &i ) )
tr_sessionSetSpeedLimit( session, TR_DOWN, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_DSPEED_ENABLED, &boolVal ) )
tr_sessionLimitSpeed( session, TR_DOWN, boolVal );
if( tr_bencDictFindReal( settings, TR_PREFS_KEY_RATIO, &d ) )
tr_sessionSetRatioLimit( session, d );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_RATIO_ENABLED, &boolVal ) )
tr_sessionSetRatioLimited( session, boolVal );
/**
*** Turtle Mode
**/
/* update the turtle mode's fields */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_UP, &i ) )
turtle->speedLimit[TR_UP] = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_DOWN, &i ) )
turtle->speedLimit[TR_DOWN] = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, &i ) )
turtle->beginMinute = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_END, &i ) )
turtle->endMinute = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, &i ) )
turtle->days = i;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, &boolVal ) )
turtle->isClockEnabled = boolVal;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_ALT_SPEED_ENABLED, &boolVal ) )
turtle->isEnabled = boolVal;
turtleBootstrap( session, turtle );
data->done = TRUE;
}
void
tr_sessionSet( tr_session * session, struct tr_benc * settings )
{
struct init_data data;
data.done = FALSE;
data.session = session;
data.clientSettings = settings;
/* run the rest in the libtransmission thread */
tr_runInEventThread( session, sessionSetImpl, &data );
while( !data.done )
tr_wait_msec( 100 );
}
/***
****
***/
void
tr_sessionSetDownloadDir( tr_session * session, const char * dir )
{
assert( tr_isSession( session ) );
if( session->downloadDir != dir )
{
tr_free( session->downloadDir );
session->downloadDir = tr_strdup( dir );
}
}
const char *
tr_sessionGetDownloadDir( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->downloadDir;
}
/***
****
***/
void
tr_sessionSetIncompleteFileNamingEnabled( tr_session * session, tr_bool b )
{
assert( tr_isSession( session ) );
assert( tr_isBool( b ) );
session->isIncompleteFileNamingEnabled = b;
}
tr_bool
tr_sessionIsIncompleteFileNamingEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isIncompleteFileNamingEnabled;
}
/***
****
***/
void
tr_sessionSetIncompleteDir( tr_session * session, const char * dir )
{
assert( tr_isSession( session ) );
if( session->incompleteDir != dir )
{
tr_free( session->incompleteDir );
session->incompleteDir = tr_strdup( dir );
}
}
const char*
tr_sessionGetIncompleteDir( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->incompleteDir;
}
void
tr_sessionSetIncompleteDirEnabled( tr_session * session, tr_bool b )
{
assert( tr_isSession( session ) );
assert( tr_isBool( b ) );
session->isIncompleteDirEnabled = b;
}
tr_bool
tr_sessionIsIncompleteDirEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isIncompleteDirEnabled;
}
/***
****
***/
void*
tr_sessionGetBuffer( tr_session * session )
{
assert( tr_isSession( session ) );
assert( !session->bufferInUse );
assert( tr_amInEventThread( session ) );
session->bufferInUse = TRUE;
return session->buffer;
}
void
tr_sessionReleaseBuffer( tr_session * session )
{
assert( tr_isSession( session ) );
assert( session->bufferInUse );
assert( tr_amInEventThread( session ) );
session->bufferInUse = FALSE;
}
void
tr_sessionLock( tr_session * session )
{
assert( tr_isSession( session ) );
tr_lockLock( session->lock );
}
void
tr_sessionUnlock( tr_session * session )
{
assert( tr_isSession( session ) );
tr_lockUnlock( session->lock );
}
tr_bool
tr_sessionIsLocked( const tr_session * session )
{
return tr_isSession( session ) && tr_lockHave( session->lock );
}
/***********************************************************************
* tr_setBindPort
***********************************************************************
*
**********************************************************************/
static void
setPeerPort( void * session )
{
tr_torrent * tor = NULL;
assert( tr_isSession( session ) );
close_incoming_peer_port( session );
open_incoming_peer_port( session );
tr_sharedPortChanged( session );
while(( tor = tr_torrentNext( session, tor )))
tr_torrentChangeMyPort( tor );
}
void
tr_sessionSetPeerPort( tr_session * session, tr_port port )
{
assert( tr_isSession( session ) );
if( session->peerPort != port )
{
session->peerPort = port;
tr_runInEventThread( session, setPeerPort, session );
}
}
tr_port
tr_sessionGetPeerPort( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->peerPort;
}
tr_port
tr_sessionSetPeerPortRandom( tr_session * session )
{
assert( tr_isSession( session ) );
tr_sessionSetPeerPort( session, getRandomPort( session ) );
return session->peerPort;
}
void
tr_sessionSetPeerPortRandomOnStart( tr_session * session,
tr_bool random )
{
assert( tr_isSession( session ) );
session->isPortRandom = random;
}
tr_bool
tr_sessionGetPeerPortRandomOnStart( tr_session * session )
{
assert( tr_isSession( session ) );
return session->isPortRandom;
}
tr_port_forwarding
tr_sessionGetPortForwarding( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_sharedTraversalStatus( session->shared );
}
/***
****
***/
static void
updateSeedRatio( tr_session * session )
{
tr_torrent * tor = NULL;
while(( tor = tr_torrentNext( session, tor )))
tor->needsSeedRatioCheck = TRUE;
}
void
tr_sessionSetRatioLimited( tr_session * session, tr_bool isLimited )
{
assert( tr_isSession( session ) );
session->isRatioLimited = isLimited;
updateSeedRatio( session );
}
void
tr_sessionSetRatioLimit( tr_session * session, double desiredRatio )
{
assert( tr_isSession( session ) );
session->desiredRatio = desiredRatio;
updateSeedRatio( session );
}
tr_bool
tr_sessionIsRatioLimited( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isRatioLimited;
}
double
tr_sessionGetRatioLimit( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->desiredRatio;
}
/***
****
**** SPEED LIMITS
****
***/
tr_bool
tr_sessionGetActiveSpeedLimit( const tr_session * session, tr_direction dir, int * setme )
{
int isLimited = TRUE;
if( !tr_isSession( session ) )
return FALSE;
if( tr_sessionUsesAltSpeed( session ) )
*setme = tr_sessionGetAltSpeed( session, dir );
else if( tr_sessionIsSpeedLimited( session, dir ) )
*setme = tr_sessionGetSpeedLimit( session, dir );
else
isLimited = FALSE;
return isLimited;
}
static void
updateBandwidth( tr_session * session, tr_direction dir )
{
int limit = 0;
const tr_bool isLimited = tr_sessionGetActiveSpeedLimit( session, dir, &limit );
const tr_bool zeroCase = isLimited && !limit;
tr_bandwidthSetLimited( session->bandwidth, dir, isLimited && !zeroCase );
tr_bandwidthSetDesiredSpeed( session->bandwidth, dir, limit );
}
enum
{
MINUTES_PER_HOUR = 60,
MINUTES_PER_DAY = MINUTES_PER_HOUR * 24,
MINUTES_PER_WEEK = MINUTES_PER_DAY * 7
};
static void
turtleUpdateTable( struct tr_turtle_info * t )
{
int day;
tr_bitfield * b = &t->minutes;
tr_bitfieldClear( b );
for( day=0; day<7; ++day )
{
if( t->days & (1<<day) )
{
int i;
const time_t begin = t->beginMinute;
time_t end = t->endMinute;
if( end <= begin )
end += MINUTES_PER_DAY;
for( i=begin; i<end; ++i )
tr_bitfieldAdd( b, (i+day*MINUTES_PER_DAY) % MINUTES_PER_WEEK );
}
}
}
static void
altSpeedToggled( void * vsession )
{
tr_session * session = vsession;
struct tr_turtle_info * t = &session->turtle;
assert( tr_isSession( session ) );
updateBandwidth( session, TR_UP );
updateBandwidth( session, TR_DOWN );
if( t->callback != NULL )
(*t->callback)( session, t->isEnabled, t->changedByUser, t->callbackUserData );
}
static void
useAltSpeed( tr_session * s, struct tr_turtle_info * t,
tr_bool enabled, tr_bool byUser )
{
assert( tr_isSession( s ) );
assert( t != NULL );
assert( tr_isBool( enabled ) );
assert( tr_isBool( byUser ) );
if( t->isEnabled != enabled )
{
t->isEnabled = enabled;
t->changedByUser = byUser;
tr_runInEventThread( s, altSpeedToggled, s );
}
}
/**
* @param enabled whether turtle should be on/off according to the scheduler
* @param changed whether that's different from the previous minute
*/
static void
testTurtleTime( const struct tr_turtle_info * t,
tr_bool * enabled,
tr_bool * changed )
{
tr_bool e;
struct tm tm;
size_t minute_of_the_week;
const time_t now = tr_time( );
tr_localtime_r( &now, &tm );
minute_of_the_week = tm.tm_wday * MINUTES_PER_DAY
+ tm.tm_hour * MINUTES_PER_HOUR
+ tm.tm_min;
if( minute_of_the_week >= MINUTES_PER_WEEK ) /* leap minutes? */
minute_of_the_week = MINUTES_PER_WEEK - 1;
e = tr_bitfieldHasFast( &t->minutes, minute_of_the_week );
if( enabled != NULL )
*enabled = e;
if( changed != NULL )
{
const size_t prev = minute_of_the_week > 0 ? minute_of_the_week - 1
: MINUTES_PER_WEEK - 1;
*changed = e != tr_bitfieldHasFast( &t->minutes, prev );
}
}
static void
turtleCheckClock( tr_session * s, struct tr_turtle_info * t )
{
tr_bool enabled;
tr_bool changed;
assert( t->isClockEnabled );
testTurtleTime( t, &enabled, &changed );
if( changed )
{
tr_inf( "Time to turn %s turtle mode!", (enabled?"on":"off") );
useAltSpeed( s, t, enabled, FALSE );
}
}
/* Called after the turtle's fields are loaded from an outside source.
* It initializes the implementation fields
* and turns on turtle mode if the clock settings say to. */
static void
turtleBootstrap( tr_session * session, struct tr_turtle_info * turtle )
{
turtle->changedByUser = FALSE;
tr_bitfieldConstruct( &turtle->minutes, MINUTES_PER_WEEK );
turtleUpdateTable( turtle );
if( turtle->isClockEnabled )
testTurtleTime( turtle, &turtle->isEnabled, NULL );
altSpeedToggled( session );
}
/***
**** Primary session speed limits
***/
void
tr_sessionSetSpeedLimit( tr_session * s, tr_direction d, int KB_s )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
assert( KB_s >= 0 );
s->speedLimit[d] = KB_s;
updateBandwidth( s, d );
}
int
tr_sessionGetSpeedLimit( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->speedLimit[d];
}
void
tr_sessionLimitSpeed( tr_session * s, tr_direction d, tr_bool b )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
assert( tr_isBool( b ) );
s->speedLimitEnabled[d] = b;
updateBandwidth( s, d );
}
tr_bool
tr_sessionIsSpeedLimited( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->speedLimitEnabled[d];
}
/***
**** Alternative speed limits that are used during scheduled times
***/
void
tr_sessionSetAltSpeed( tr_session * s, tr_direction d, int KB_s )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
assert( KB_s >= 0 );
s->turtle.speedLimit[d] = KB_s;
updateBandwidth( s, d );
}
int
tr_sessionGetAltSpeed( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->turtle.speedLimit[d];
}
static void
userPokedTheClock( tr_session * s, struct tr_turtle_info * t )
{
tr_dbg( "Refreshing the turtle mode clock due to user changes" );
turtleUpdateTable( t );
if( t->isClockEnabled )
{
tr_bool enabled, changed;
testTurtleTime( t, &enabled, &changed );
useAltSpeed( s, t, enabled, TRUE );
}
}
void
tr_sessionUseAltSpeedTime( tr_session * s, tr_bool b )
{
struct tr_turtle_info * t = &s->turtle;
assert( tr_isSession( s ) );
assert( tr_isBool ( b ) );
if( t->isClockEnabled != b ) {
t->isClockEnabled = b;
userPokedTheClock( s, t );
}
}
tr_bool
tr_sessionUsesAltSpeedTime( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.isClockEnabled;
}
void
tr_sessionSetAltSpeedBegin( tr_session * s, int minute )
{
assert( tr_isSession( s ) );
assert( 0<=minute && minute<(60*24) );
if( s->turtle.beginMinute != minute ) {
s->turtle.beginMinute = minute;
userPokedTheClock( s, &s->turtle );
}
}
int
tr_sessionGetAltSpeedBegin( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.beginMinute;
}
void
tr_sessionSetAltSpeedEnd( tr_session * s, int minute )
{
assert( tr_isSession( s ) );
assert( 0<=minute && minute<(60*24) );
if( s->turtle.endMinute != minute ) {
s->turtle.endMinute = minute;
userPokedTheClock( s, &s->turtle );
}
}
int
tr_sessionGetAltSpeedEnd( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.endMinute;
}
void
tr_sessionSetAltSpeedDay( tr_session * s, tr_sched_day days )
{
assert( tr_isSession( s ) );
if( s->turtle.days != days ) {
s->turtle.days = days;
userPokedTheClock( s, &s->turtle );
}
}
tr_sched_day
tr_sessionGetAltSpeedDay( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.days;
}
void
tr_sessionUseAltSpeed( tr_session * session, tr_bool enabled )
{
useAltSpeed( session, &session->turtle, enabled, TRUE );
}
tr_bool
tr_sessionUsesAltSpeed( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.isEnabled;
}
void
tr_sessionSetAltSpeedFunc( tr_session * session,
tr_altSpeedFunc func,
void * userData )
{
assert( tr_isSession( session ) );
session->turtle.callback = func;
session->turtle.callbackUserData = userData;
}
void
tr_sessionClearAltSpeedFunc( tr_session * session )
{
tr_sessionSetAltSpeedFunc( session, NULL, NULL );
}
/***
****
***/
void
tr_sessionSetPeerLimit( tr_session * session, uint16_t maxGlobalPeers )
{
assert( tr_isSession( session ) );
tr_fdSetPeerLimit( session, maxGlobalPeers );
}
uint16_t
tr_sessionGetPeerLimit( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_fdGetPeerLimit( session );
}
void
tr_sessionSetPeerLimitPerTorrent( tr_session * session, uint16_t n )
{
assert( tr_isSession( session ) );
session->peerLimitPerTorrent = n;
}
uint16_t
tr_sessionGetPeerLimitPerTorrent( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->peerLimitPerTorrent;
}
/***
****
***/
void
tr_sessionSetPaused( tr_session * session, tr_bool isPaused )
{
assert( tr_isSession( session ) );
session->pauseAddedTorrent = isPaused;
}
tr_bool
tr_sessionGetPaused( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->pauseAddedTorrent;
}
void
tr_sessionSetDeleteSource( tr_session * session, tr_bool deleteSource )
{
assert( tr_isSession( session ) );
session->deleteSourceTorrent = deleteSource;
}
tr_bool
tr_sessionGetDeleteSource( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->deleteSourceTorrent;
}
/***
****
***/
double
tr_sessionGetPieceSpeed( const tr_session * session, tr_direction dir )
{
return tr_isSession( session ) ? tr_bandwidthGetPieceSpeed( session->bandwidth, 0, dir ) : 0.0;
}
double
tr_sessionGetRawSpeed( const tr_session * session, tr_direction dir )
{
return tr_isSession( session ) ? tr_bandwidthGetRawSpeed( session->bandwidth, 0, dir ) : 0.0;
}
int
tr_sessionCountTorrents( const tr_session * session )
{
return tr_isSession( session ) ? session->torrentCount : 0;
}
static int
compareTorrentByCur( const void * va, const void * vb )
{
const tr_torrent * a = *(const tr_torrent**)va;
const tr_torrent * b = *(const tr_torrent**)vb;
const uint64_t aCur = a->downloadedCur + a->uploadedCur;
const uint64_t bCur = b->downloadedCur + b->uploadedCur;
if( aCur != bCur )
return aCur > bCur ? -1 : 1; /* close the biggest torrents first */
return 0;
}
static void closeBlocklists( tr_session * );
static void
sessionCloseImpl( void * vsession )
{
tr_session * session = vsession;
tr_torrent * tor;
int i, n;
tr_torrent ** torrents;
assert( tr_isSession( session ) );
free_incoming_peer_port( session );
if( session->isDHTEnabled )
tr_dhtUninit( session );
evtimer_del( session->saveTimer );
tr_free( session->saveTimer );
session->saveTimer = NULL;
evtimer_del( session->nowTimer );
tr_free( session->nowTimer );
session->nowTimer = NULL;
tr_verifyClose( session );
tr_sharedClose( session );
tr_rpcClose( &session->rpcServer );
/* close the torrents. get the most active ones first so that
* if we can't get them all closed in a reasonable amount of time,
* at least we get the most important ones first. */
tor = NULL;
n = session->torrentCount;
torrents = tr_new( tr_torrent *, session->torrentCount );
for( i = 0; i < n; ++i )
torrents[i] = tor = tr_torrentNext( session, tor );
qsort( torrents, n, sizeof( tr_torrent* ), compareTorrentByCur );
for( i = 0; i < n; ++i )
tr_torrentFree( torrents[i] );
tr_free( torrents );
tr_announcerClose( session );
tr_statsClose( session );
tr_peerMgrFree( session->peerMgr );
tr_webClose( session, TR_WEB_CLOSE_WHEN_IDLE );
closeBlocklists( session );
tr_fdClose( session );
session->isClosed = TRUE;
}
static int
deadlineReached( const time_t deadline )
{
return time( NULL ) >= deadline;
}
#define SHUTDOWN_MAX_SECONDS 20
void
tr_sessionClose( tr_session * session )
{
const time_t deadline = time( NULL ) + SHUTDOWN_MAX_SECONDS;
assert( tr_isSession( session ) );
dbgmsg( "shutting down transmission session %p", session );
/* close the session */
tr_runInEventThread( session, sessionCloseImpl, session );
while( !session->isClosed && !deadlineReached( deadline ) )
{
dbgmsg( "waiting for the libtransmission thread to finish" );
tr_wait_msec( 100 );
}
/* "shared" and "tracker" have live sockets,
* so we need to keep the transmission thread alive
* for a bit while they tell the router & tracker
* that we're closing now */
while( ( session->shared || session->web || session->announcer )
&& !deadlineReached( deadline ) )
{
dbgmsg( "waiting on port unmap (%p) or announcer (%p)",
session->shared, session->announcer );
tr_wait_msec( 100 );
}
tr_webClose( session, TR_WEB_CLOSE_NOW );
/* close the libtransmission thread */
tr_eventClose( session );
while( session->events != NULL )
{
static tr_bool forced = FALSE;
dbgmsg( "waiting for libtransmission thread to finish" );
tr_wait_msec( 500 );
if( deadlineReached( deadline ) && !forced )
{
event_loopbreak( );
forced = TRUE;
if( time( NULL ) >= deadline + 3 )
break;
}
}
/* free the session memory */
tr_bencFree( &session->removedTorrents );
tr_bandwidthFree( session->bandwidth );
tr_bitfieldDestruct( &session->turtle.minutes );
tr_lockFree( session->lock );
if( session->metainfoLookup ) {
tr_bencFree( session->metainfoLookup );
tr_free( session->metainfoLookup );
}
tr_free( session->buffer );
tr_free( session->tag );
tr_free( session->configDir );
tr_free( session->resumeDir );
tr_free( session->torrentDir );
tr_free( session->downloadDir );
tr_free( session->incompleteDir );
tr_free( session->proxy );
tr_free( session->proxyUsername );
tr_free( session->proxyPassword );
tr_free( session );
}
tr_torrent **
tr_sessionLoadTorrents( tr_session * session,
tr_ctor * ctor,
int * setmeCount )
{
int i, n = 0;
struct stat sb;
DIR * odir = NULL;
const char * dirname = tr_getTorrentDir( session );
tr_torrent ** torrents;
tr_list * l = NULL, *list = NULL;
assert( tr_isSession( session ) );
tr_ctorSetSave( ctor, FALSE ); /* since we already have them */
if( !stat( dirname, &sb )
&& S_ISDIR( sb.st_mode )
&& ( ( odir = opendir ( dirname ) ) ) )
{
struct dirent *d;
for( d = readdir( odir ); d != NULL; d = readdir( odir ) )
{
if( d->d_name && d->d_name[0] != '.' ) /* skip dotfiles, ., and ..
*/
{
tr_torrent * tor;
char * path = tr_buildPath( dirname, d->d_name, NULL );
tr_ctorSetMetainfoFromFile( ctor, path );
if(( tor = tr_torrentNew( ctor, NULL )))
{
tr_list_append( &list, tor );
++n;
}
tr_free( path );
}
}
closedir( odir );
}
torrents = tr_new( tr_torrent *, n );
for( i = 0, l = list; l != NULL; l = l->next )
torrents[i++] = (tr_torrent*) l->data;
assert( i == n );
tr_list_free( &list, NULL );
if( n )
tr_inf( _( "Loaded %d torrents" ), n );
if( setmeCount )
*setmeCount = n;
return torrents;
}
/***
****
***/
void
tr_sessionSetPexEnabled( tr_session * session,
tr_bool enabled )
{
assert( tr_isSession( session ) );
session->isPexEnabled = enabled != 0;
}
tr_bool
tr_sessionIsPexEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isPexEnabled;
}
tr_bool
tr_sessionAllowsDHT( const tr_session * session UNUSED )
{
return tr_sessionIsDHTEnabled( session );
}
tr_bool
tr_sessionIsDHTEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isDHTEnabled;
}
static void
toggleDHTImpl( void * data )
{
tr_session * session = data;
assert( tr_isSession( session ) );
if( session->isDHTEnabled )
tr_dhtUninit( session );
session->isDHTEnabled = !session->isDHTEnabled;
if( session->isDHTEnabled )
tr_dhtInit( session, &session->public_ipv4->addr );
}
void
tr_sessionSetDHTEnabled( tr_session * session, tr_bool enabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( enabled ) );
if( ( enabled != 0 ) != ( session->isDHTEnabled != 0 ) )
tr_runInEventThread( session, toggleDHTImpl, session );
}
/***
****
***/
void
tr_sessionSetLazyBitfieldEnabled( tr_session * session,
tr_bool enabled )
{
assert( tr_isSession( session ) );
session->useLazyBitfield = enabled != 0;
}
tr_bool
tr_sessionIsLazyBitfieldEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->useLazyBitfield;
}
/***
****
***/
struct port_forwarding_data
{
tr_bool enabled;
struct tr_shared * shared;
};
static void
setPortForwardingEnabled( void * vdata )
{
struct port_forwarding_data * data = vdata;
tr_sharedTraversalEnable( data->shared, data->enabled );
tr_free( data );
}
void
tr_sessionSetPortForwardingEnabled( tr_session * session, tr_bool enabled )
{
struct port_forwarding_data * d;
d = tr_new0( struct port_forwarding_data, 1 );
d->shared = session->shared;
d->enabled = enabled;
tr_runInEventThread( session, setPortForwardingEnabled, d );
}
tr_bool
tr_sessionIsPortForwardingEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_sharedTraversalIsEnabled( session->shared );
}
/***
****
***/
static int
tr_stringEndsWith( const char * str, const char * end )
{
const size_t slen = strlen( str );
const size_t elen = strlen( end );
return slen >= elen && !memcmp( &str[slen - elen], end, elen );
}
static void
loadBlocklists( tr_session * session )
{
int binCount = 0;
int newCount = 0;
struct stat sb;
char * dirname;
DIR * odir = NULL;
tr_list * list = NULL;
const tr_bool isEnabled = session->isBlocklistEnabled;
/* walk through the directory and find blocklists */
dirname = tr_buildPath( session->configDir, "blocklists", NULL );
if( !stat( dirname,
&sb ) && S_ISDIR( sb.st_mode )
&& ( ( odir = opendir( dirname ) ) ) )
{
struct dirent *d;
for( d = readdir( odir ); d; d = readdir( odir ) )
{
char * filename;
if( !d->d_name || d->d_name[0] == '.' ) /* skip dotfiles, ., and ..
*/
continue;
filename = tr_buildPath( dirname, d->d_name, NULL );
if( tr_stringEndsWith( filename, ".bin" ) )
{
/* if we don't already have this blocklist, add it */
if( !tr_list_find( list, filename,
(TrListCompareFunc)strcmp ) )
{
tr_list_append( &list,
_tr_blocklistNew( filename, isEnabled ) );
++binCount;
}
}
else
{
/* strip out the file suffix, if there is one, and add ".bin"
instead */
tr_blocklist * b;
const char * dot = strrchr( d->d_name, '.' );
const int len = dot ? dot - d->d_name
: (int)strlen( d->d_name );
char * tmp = tr_strdup_printf(
"%s" TR_PATH_DELIMITER_STR "%*.*s.bin",
dirname, len, len, d->d_name );
b = _tr_blocklistNew( tmp, isEnabled );
_tr_blocklistSetContent( b, filename );
tr_list_append( &list, b );
++newCount;
tr_free( tmp );
}
tr_free( filename );
}
closedir( odir );
}
session->blocklists = list;
if( binCount )
tr_dbg( "Found %d blocklists in \"%s\"", binCount, dirname );
if( newCount )
tr_dbg( "Found %d new blocklists in \"%s\"", newCount, dirname );
tr_free( dirname );
}
static void
closeBlocklists( tr_session * session )
{
tr_list_free( &session->blocklists,
(TrListForeachFunc)_tr_blocklistFree );
}
void
tr_sessionReloadBlocklists( tr_session * session )
{
closeBlocklists( session );
loadBlocklists( session );
}
int
tr_blocklistGetRuleCount( const tr_session * session )
{
int n = 0;
tr_list * l;
assert( tr_isSession( session ) );
for( l = session->blocklists; l; l = l->next )
n += _tr_blocklistGetRuleCount( l->data );
return n;
}
tr_bool
tr_blocklistIsEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isBlocklistEnabled;
}
void
tr_blocklistSetEnabled( tr_session * session,
tr_bool isEnabled )
{
tr_list * l;
assert( tr_isSession( session ) );
session->isBlocklistEnabled = isEnabled != 0;
for( l=session->blocklists; l!=NULL; l=l->next )
_tr_blocklistSetEnabled( l->data, isEnabled );
}
tr_bool
tr_blocklistExists( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->blocklists != NULL;
}
int
tr_blocklistSetContent( tr_session * session,
const char * contentFilename )
{
tr_list * l;
int ruleCount;
tr_blocklist * b;
const char * defaultName = "level1.bin";
tr_sessionLock( session );
for( b = NULL, l = session->blocklists; !b && l; l = l->next )
if( tr_stringEndsWith( _tr_blocklistGetFilename( l->data ),
defaultName ) )
b = l->data;
if( !b )
{
char * path = tr_buildPath( session->configDir, "blocklists", defaultName, NULL );
b = _tr_blocklistNew( path, session->isBlocklistEnabled );
tr_list_append( &session->blocklists, b );
tr_free( path );
}
ruleCount = _tr_blocklistSetContent( b, contentFilename );
tr_sessionUnlock( session );
return ruleCount;
}
tr_bool
tr_sessionIsAddressBlocked( const tr_session * session,
const tr_address * addr )
{
tr_list * l;
assert( tr_isSession( session ) );
for( l = session->blocklists; l; l = l->next )
if( _tr_blocklistHasAddress( l->data, addr ) )
return TRUE;
return FALSE;
}
/***
****
***/
static void
metainfoLookupInit( tr_session * session )
{
struct stat sb;
const char * dirname = tr_getTorrentDir( session );
DIR * odir = NULL;
tr_ctor * ctor = NULL;
tr_benc * lookup;
int n = 0;
assert( tr_isSession( session ) );
/* walk through the directory and find the mappings */
lookup = tr_new0( tr_benc, 1 );
tr_bencInitDict( lookup, 0 );
ctor = tr_ctorNew( session );
tr_ctorSetSave( ctor, FALSE ); /* since we already have them */
if( !stat( dirname, &sb ) && S_ISDIR( sb.st_mode ) && ( ( odir = opendir( dirname ) ) ) )
{
struct dirent *d;
while(( d = readdir( odir )))
{
if( d->d_name && d->d_name[0] != '.' )
{
tr_info inf;
char * path = tr_buildPath( dirname, d->d_name, NULL );
tr_ctorSetMetainfoFromFile( ctor, path );
if( !tr_torrentParse( ctor, &inf ) )
{
++n;
tr_bencDictAddStr( lookup, inf.hashString, path );
}
tr_free( path );
}
}
closedir( odir );
}
tr_ctorFree( ctor );
session->metainfoLookup = lookup;
tr_dbg( "Found %d torrents in \"%s\"", n, dirname );
}
const char*
tr_sessionFindTorrentFile( const tr_session * session,
const char * hashString )
{
const char * filename = NULL;
if( !session->metainfoLookup )
metainfoLookupInit( (tr_session*)session );
tr_bencDictFindStr( session->metainfoLookup, hashString, &filename );
return filename;
}
void
tr_sessionSetTorrentFile( tr_session * session,
const char * hashString,
const char * filename )
{
/* since we walk session->configDir/torrents/ to build the lookup table,
* and tr_sessionSetTorrentFile() is just to tell us there's a new file
* in that same directory, we don't need to do anything here if the
* lookup table hasn't been built yet */
if( session->metainfoLookup )
tr_bencDictAddStr( session->metainfoLookup, hashString, filename );
}
tr_torrent*
tr_torrentNext( tr_session * session,
tr_torrent * tor )
{
tr_torrent * ret;
assert( !session || tr_isSession( session ) );
if( !session )
ret = NULL;
else if( !tor )
ret = session->torrentList;
else
ret = tor->next;
return ret;
}
/***
****
***/
void
tr_sessionSetRPCEnabled( tr_session * session,
tr_bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetEnabled( session->rpcServer, isEnabled );
}
tr_bool
tr_sessionIsRPCEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcIsEnabled( session->rpcServer );
}
void
tr_sessionSetRPCPort( tr_session * session,
tr_port port )
{
assert( tr_isSession( session ) );
tr_rpcSetPort( session->rpcServer, port );
}
tr_port
tr_sessionGetRPCPort( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetPort( session->rpcServer );
}
void
tr_sessionSetRPCCallback( tr_session * session,
tr_rpc_func func,
void * user_data )
{
assert( tr_isSession( session ) );
session->rpc_func = func;
session->rpc_func_user_data = user_data;
}
void
tr_sessionSetRPCWhitelist( tr_session * session,
const char * whitelist )
{
assert( tr_isSession( session ) );
tr_rpcSetWhitelist( session->rpcServer, whitelist );
}
const char*
tr_sessionGetRPCWhitelist( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetWhitelist( session->rpcServer );
}
void
tr_sessionSetRPCWhitelistEnabled( tr_session * session,
tr_bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetWhitelistEnabled( session->rpcServer, isEnabled );
}
tr_bool
tr_sessionGetRPCWhitelistEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetWhitelistEnabled( session->rpcServer );
}
void
tr_sessionSetRPCPassword( tr_session * session,
const char * password )
{
assert( tr_isSession( session ) );
tr_rpcSetPassword( session->rpcServer, password );
}
const char*
tr_sessionGetRPCPassword( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetPassword( session->rpcServer );
}
void
tr_sessionSetRPCUsername( tr_session * session,
const char * username )
{
assert( tr_isSession( session ) );
tr_rpcSetUsername( session->rpcServer, username );
}
const char*
tr_sessionGetRPCUsername( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetUsername( session->rpcServer );
}
void
tr_sessionSetRPCPasswordEnabled( tr_session * session,
tr_bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetPasswordEnabled( session->rpcServer, isEnabled );
}
tr_bool
tr_sessionIsRPCPasswordEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcIsPasswordEnabled( session->rpcServer );
}
const char *
tr_sessionGetRPCBindAddress( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetBindAddress( session->rpcServer );
}
/***
****
***/
tr_bool
tr_sessionIsProxyEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isProxyEnabled;
}
void
tr_sessionSetProxyEnabled( tr_session * session,
tr_bool isEnabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( isEnabled ) );
session->isProxyEnabled = isEnabled != 0;
}
tr_proxy_type
tr_sessionGetProxyType( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->proxyType;
}
void
tr_sessionSetProxyType( tr_session * session,
tr_proxy_type type )
{
assert( tr_isSession( session ) );
session->proxyType = type;
}
const char*
tr_sessionGetProxy( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->proxy;
}
tr_port
tr_sessionGetProxyPort( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->proxyPort;
}
void
tr_sessionSetProxy( tr_session * session,
const char * proxy )
{
assert( tr_isSession( session ) );
if( proxy != session->proxy )
{
tr_free( session->proxy );
session->proxy = tr_strdup( proxy );
}
}
void
tr_sessionSetProxyPort( tr_session * session,
tr_port port )
{
assert( tr_isSession( session ) );
session->proxyPort = port;
}
tr_bool
tr_sessionIsProxyAuthEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isProxyAuthEnabled;
}
void
tr_sessionSetProxyAuthEnabled( tr_session * session,
tr_bool isEnabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( isEnabled ) );
session->isProxyAuthEnabled = isEnabled != 0;
}
const char*
tr_sessionGetProxyUsername( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->proxyUsername;
}
void
tr_sessionSetProxyUsername( tr_session * session,
const char * username )
{
assert( tr_isSession( session ) );
if( username != session->proxyUsername )
{
tr_free( session->proxyUsername );
session->proxyUsername = tr_strdup( username );
}
}
const char*
tr_sessionGetProxyPassword( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->proxyPassword;
}
void
tr_sessionSetProxyPassword( tr_session * session,
const char * password )
{
assert( tr_isSession( session ) );
if( password != session->proxyPassword )
{
tr_free( session->proxyPassword );
session->proxyPassword = tr_strdup( password );
}
}
int
tr_sessionGetActiveTorrentCount( tr_session * session )
{
int ret = 0;
tr_torrent * tor = NULL;
assert( tr_isSession( session ) );
while(( tor = tr_torrentNext( session, tor )))
if( tr_torrentGetActivity( tor ) != TR_STATUS_STOPPED )
++ret;
return ret;
}
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