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00019 #include <config.h>
00020
00021 #ifdef HAVE_SYS_TIME_H
00022 #include <sys/time.h>
00023 #endif
00024
00025 #include <qfile.h>
00026 #include <qstring.h>
00027 #include <qmap.h>
00028
00029 #include <klocale.h>
00030 #include <kdebug.h>
00031 #include "klibloader.h"
00032 #include <kconfig.h>
00033 #include <kapplication.h>
00034
00035 #include <sys/types.h>
00036 #include <sys/socket.h>
00037
00038 #include <unistd.h>
00039
00040 #include "ksocks.h"
00041
00042
00043 enum SymbolKeys {
00044 S_SOCKSinit = 0,
00045 S_connect = 1,
00046 S_read = 2,
00047 S_write = 3,
00048 S_recvfrom = 4,
00049 S_sendto = 5,
00050 S_recv = 6,
00051 S_send = 7,
00052 S_getsockname = 8,
00053 S_getpeername = 9,
00054 S_accept = 10,
00055 S_select = 11,
00056 S_listen = 12,
00057 S_bind = 13
00058 };
00059
00060
00061 extern "C" {
00062
00063 static int (*F_SOCKSinit) (char *) = 0L;
00064 static int (*F_connect) (int, const struct sockaddr *, ksocklen_t) = 0L;
00065 static signed long int (*F_read) (int, void *, unsigned long int) = 0L;
00066 static signed long int (*F_write) (int, const void *, unsigned long int) = 0L;
00067 static int (*F_recvfrom) (int, void *, unsigned long int, int, struct sockaddr *,
00068 ksocklen_t *) = 0L;
00069 static int (*F_sendto) (int, const void *, unsigned long int, int,
00070 const struct sockaddr *, ksocklen_t) = 0L;
00071 static int (*F_recv) (int, void *, unsigned long int, int) = 0L;
00072 static int (*F_send) (int, const void *, unsigned long int, int) = 0L;
00073 static int (*F_getsockname) (int, struct sockaddr *, ksocklen_t *) = 0L;
00074 static int (*F_getpeername) (int, struct sockaddr *, ksocklen_t *) = 0L;
00075 static int (*F_accept) (int, struct sockaddr *, ksocklen_t *) = 0L;
00076 static int (*F_select) (int, fd_set *, fd_set *, fd_set *,
00077 struct timeval *) = 0L;
00078 static int (*F_listen) (int, int) = 0L;
00079 static int (*F_bind) (int, const struct sockaddr *, ksocklen_t) = 0L;
00080 }
00081
00082
00083 class KSocksTable {
00084 public:
00085 KSocksTable();
00086 virtual ~KSocksTable();
00087
00088
00089 QMap<SymbolKeys,QString> symbols;
00090
00091 QString myname;
00092 bool hasWorkingAsyncConnect;
00093 };
00094
00095
00096 KSocksTable::KSocksTable() : myname("Unknown"), hasWorkingAsyncConnect(true) {
00097 }
00098
00099 KSocksTable::~KSocksTable() {
00100 }
00101
00102
00103
00104
00105
00106
00107
00108
00109
00110
00111
00112
00113
00114
00115
00116
00117
00121
00122
00123
00124
00125
00126
00127 class KNECSocksTable : public KSocksTable {
00128 public:
00129 KNECSocksTable();
00130 virtual ~KNECSocksTable();
00131 };
00132
00133
00134 KNECSocksTable::KNECSocksTable() : KSocksTable() {
00135 myname = i18n("NEC SOCKS client");
00136 symbols.insert(S_SOCKSinit, "SOCKSinit");
00137 symbols.insert(S_connect, "connect");
00138 symbols.insert(S_read, "read");
00139 symbols.insert(S_write, "write");
00140 symbols.insert(S_recvfrom, "recvfrom");
00141 symbols.insert(S_sendto, "sendto");
00142 symbols.insert(S_recv, "recv");
00143 symbols.insert(S_send, "send");
00144 symbols.insert(S_getsockname, "getsockname");
00145 symbols.insert(S_getpeername, "getpeername");
00146 symbols.insert(S_accept, "accept");
00147 symbols.insert(S_select, "select");
00148 symbols.insert(S_listen, "listen");
00149 symbols.insert(S_bind, "bind");
00150 }
00151
00152 KNECSocksTable::~KNECSocksTable() {
00153 }
00154
00155
00156
00157
00158
00159
00160
00161
00162 class KDanteSocksTable : public KSocksTable {
00163 public:
00164 KDanteSocksTable();
00165 virtual ~KDanteSocksTable();
00166 };
00167
00168 KDanteSocksTable::KDanteSocksTable() : KSocksTable() {
00169 hasWorkingAsyncConnect = false;
00170 myname = i18n("Dante SOCKS client");
00171 symbols.insert(S_SOCKSinit, "SOCKSinit");
00172 symbols.insert(S_connect, "Rconnect");
00173 symbols.insert(S_read, "Rread");
00174 symbols.insert(S_write, "Rwrite");
00175 symbols.insert(S_recvfrom, "Rrecvfrom");
00176 symbols.insert(S_sendto, "Rsendto");
00177 symbols.insert(S_recv, "Rrecv");
00178 symbols.insert(S_send, "Rsend");
00179 symbols.insert(S_getsockname, "Rgetsockname");
00180 symbols.insert(S_getpeername, "Rgetpeername");
00181 symbols.insert(S_accept, "Raccept");
00182 symbols.insert(S_select, "Rselect");
00183 symbols.insert(S_listen, "Rlisten");
00184 symbols.insert(S_bind, "Rbind");
00185 }
00186
00187
00188 KDanteSocksTable::~KDanteSocksTable() {
00189 }
00190
00191
00192
00196
00197
00198 KSocks *KSocks::_me = 0;
00199 bool KSocks::_disabled = false;
00200
00201 void KSocks::disable()
00202 {
00203 if (!_me)
00204 _disabled = true;
00205 }
00206
00207 KSocks *KSocks::self() {
00208
00209 if (!_me) {
00210 if (kapp) {
00211 KConfigGroup cfg(kapp->config(), "Socks");
00212 _me = new KSocks(&cfg);
00213 } else {
00214 _disabled = true;
00215 _me = new KSocks(0);
00216 }
00217 }
00218 return _me;
00219 }
00220
00221 void KSocks::setConfig(KConfigBase *config)
00222 {
00223
00224
00225 if (_me && _disabled) {
00226 delete _me;
00227 _me = 0;
00228 _disabled = false;
00229 }
00230 if (!_me)
00231 _me = new KSocks(config);
00232 }
00233
00234 bool KSocks::activated() { return (_me != 0L); }
00235
00236
00237 KSocks::KSocks(KConfigBase *config) : _socksLib(0L), _st(0L) {
00238 _hasSocks = false;
00239 _useSocks = false;
00240
00241 if (!config)
00242 return;
00243
00244 if (!(config->readBoolEntry("SOCKS_enable", false))) {
00245 _disabled = true;
00246 }
00247
00248 if (_disabled)
00249 return;
00250
00251 _libPaths << ""
00252 << "/usr/lib" KDELIBSUFF "/"
00253 << "/usr/lib/"
00254 << "/usr/local/lib" KDELIBSUFF "/"
00255 << "/usr/local/lib/"
00256 << "/usr/local/socks5/lib" KDELIBSUFF "/"
00257 << "/usr/local/socks5/lib/"
00258 << "/opt/socks5/lib" KDELIBSUFF "/"
00259 << "/opt/socks5/lib/";
00260 _libNames << "libsocks.so"
00261 << "libdsocksd.so.0"
00262
00263 << "libsocks5.so"
00264 << "libsocks5_sh.so";
00265
00266
00267 QStringList newlibs = config->readListEntry("SOCKS_lib_path");
00268
00269 for (QStringList::Iterator it = newlibs.begin();
00270 it != newlibs.end();
00271 ++it) {
00272 QString thisone = *it;
00273 if (thisone[thisone.length()-1] != '/') thisone += "/";
00274 _libPaths << thisone;
00275 kdDebug(171) << "KSocks added a new library path: " << thisone << endl;
00276 }
00277
00278
00279 KLibLoader *ll = KLibLoader::self();
00280
00281
00282 int _meth = config->readNumEntry("SOCKS_method", 1);
00283
00284
00285
00286
00287
00288 if (_meth == 4) {
00289 _socksLib = ll->library(config->readPathEntry("SOCKS_lib").latin1());
00290 if (_socksLib && _socksLib->symbol("Rconnect")) {
00291 _st = new KDanteSocksTable;
00292 _useSocks = true;
00293 _hasSocks = true;
00294 } else if (_socksLib && _socksLib->symbol("connect")) {
00295 _st = new KNECSocksTable;
00296 _useSocks = true;
00297 _hasSocks = true;
00298 } else if (_socksLib) {
00299 _socksLib->unload();
00300 _socksLib = 0L;
00301 }
00302 } else
00303 for (QStringList::Iterator pit = _libPaths.begin();
00304 !_hasSocks && pit != _libPaths.end();
00305 ++pit)
00306 for (QStringList::Iterator it = _libNames.begin();
00307 it != _libNames.end();
00308 ++it) {
00309 _socksLib = ll->library((*pit + *it).latin1());
00310 if (_socksLib) {
00311 if ((_meth == 1 || _meth == 2) &&
00312 _socksLib->symbol("S5LogShowThreadIDS") != 0L) {
00313 kdDebug(171) << "Found NEC SOCKS" << endl;
00314 _st = new KNECSocksTable;
00315 _useSocks = true;
00316 _hasSocks = true;
00317 break;
00318 } else if ((_meth == 1 || _meth == 3) &&
00319 _socksLib->symbol("sockaddr2ruleaddress") != 0L) {
00320 kdDebug(171) << "Found Dante SOCKS" << endl;
00321 _st = new KDanteSocksTable;
00322 _useSocks = true;
00323 _hasSocks = true;
00324 break;
00325 } else {
00326 _socksLib->unload();
00327 _socksLib = 0L;
00328 }
00329 }
00330 }
00331
00332
00333 if (_st) {
00334 for (QMap<SymbolKeys,QString>::Iterator it = _st->symbols.begin();
00335 it != _st->symbols.end();
00336 ++it) {
00337 switch(it.key()) {
00338 case S_SOCKSinit:
00339 F_SOCKSinit = (int (*)(char *))
00340 _socksLib->symbol(it.data().latin1());
00341 break;
00342 case S_connect:
00343 F_connect = (int (*)(int, const struct sockaddr *, ksocklen_t))
00344 _socksLib->symbol(it.data().latin1());
00345 break;
00346 case S_read:
00347 F_read = (signed long int (*)(int, void *, unsigned long int))
00348 _socksLib->symbol(it.data().latin1());
00349 break;
00350 case S_write:
00351 F_write = (signed long int (*)(int, const void *, unsigned long int))
00352 _socksLib->symbol(it.data().latin1());
00353 break;
00354 case S_recvfrom:
00355 F_recvfrom = (int (*)(int, void *, unsigned long int, int,
00356 struct sockaddr *, ksocklen_t *))
00357 _socksLib->symbol(it.data().latin1());
00358 break;
00359 case S_sendto:
00360 F_sendto = (int (*)(int, const void *, unsigned long int, int,
00361 const struct sockaddr *, ksocklen_t))
00362 _socksLib->symbol(it.data().latin1());
00363 break;
00364 case S_recv:
00365 F_recv = (int (*)(int, void *, unsigned long int, int))
00366 _socksLib->symbol(it.data().latin1());
00367 break;
00368 case S_send:
00369 F_send = (int (*)(int, const void *, unsigned long int, int))
00370 _socksLib->symbol(it.data().latin1());
00371 break;
00372 case S_getsockname:
00373 F_getsockname = (int (*)(int, struct sockaddr *, ksocklen_t *))
00374 _socksLib->symbol(it.data().latin1());
00375 break;
00376 case S_getpeername:
00377 F_getpeername = (int (*)(int, struct sockaddr *, ksocklen_t *))
00378 _socksLib->symbol(it.data().latin1());
00379 break;
00380 case S_accept:
00381 F_accept = (int (*)(int, struct sockaddr *, ksocklen_t *))
00382 _socksLib->symbol(it.data().latin1());
00383 break;
00384 case S_select:
00385 F_select = (int (*)(int, fd_set *, fd_set *, fd_set *, struct timeval *))
00386 _socksLib->symbol(it.data().latin1());
00387 break;
00388 case S_listen:
00389 F_listen = (int (*)(int, int))
00390 _socksLib->symbol(it.data().latin1());
00391 break;
00392 case S_bind:
00393 F_bind = (int (*)(int, const struct sockaddr *, ksocklen_t))
00394 _socksLib->symbol(it.data().latin1());
00395 break;
00396 default:
00397 kdDebug(171) << "KSocks got a symbol it doesn't know about!" << endl;
00398 break;
00399 }
00400 }
00401
00402
00403 if (F_SOCKSinit) {
00404 int rc = (*F_SOCKSinit)((char *)"KDE");
00405 if (rc != 0)
00406 stopSocks();
00407 else kdDebug(171) << "SOCKS has been activated!" << endl;
00408 } else {
00409 stopSocks();
00410 }
00411 }
00412 }
00413
00414
00415 KSocks::~KSocks() {
00416 stopSocks();
00417 _me = 0;
00418 }
00419
00420 void KSocks::die() {
00421 if (_me == this) {
00422 _me = 0;
00423 delete this;
00424 }
00425 }
00426
00427 void KSocks::stopSocks() {
00428 if (_hasSocks) {
00429
00430
00431 _useSocks = false;
00432 _hasSocks = false;
00433 if (_socksLib) {
00434 _socksLib->unload();
00435 _socksLib = 0L;
00436 }
00437 delete _st;
00438 _st = 0L;
00439 }
00440 }
00441
00442
00443 bool KSocks::usingSocks() {
00444 return _useSocks;
00445 }
00446
00447
00448 bool KSocks::hasSocks() {
00449 return _hasSocks;
00450 }
00451
00452
00453 void KSocks::disableSocks() {
00454 _useSocks = false;
00455 }
00456
00457
00458 void KSocks::enableSocks() {
00459 if (_hasSocks)
00460 _useSocks = true;
00461 }
00462
00463 bool KSocks::hasWorkingAsyncConnect()
00464 {
00465 return (_useSocks && _st) ? _st->hasWorkingAsyncConnect : true;
00466 }
00467
00468
00469
00470
00471
00472
00473
00474 int KSocks::connect (int sockfd, const sockaddr *serv_addr,
00475 ksocklen_t addrlen) {
00476 if (_useSocks && F_connect)
00477 return (*F_connect)(sockfd, serv_addr, addrlen);
00478 else return ::connect(sockfd, (sockaddr*) serv_addr, (socklen_t)addrlen);
00479 }
00480
00481
00482 signed long int KSocks::read (int fd, void *buf, unsigned long int count) {
00483 if (_useSocks && F_read)
00484 return (*F_read)(fd, buf, count);
00485 else return ::read(fd, buf, count);
00486 }
00487
00488
00489 signed long int KSocks::write (int fd, const void *buf, unsigned long int count) {
00490 if (_useSocks && F_write)
00491 return (*F_write)(fd, buf, count);
00492 else return ::write(fd, buf, count);
00493 }
00494
00495
00496 int KSocks::recvfrom (int s, void *buf, unsigned long int len, int flags,
00497 sockaddr *from, ksocklen_t *fromlen) {
00498 if (_useSocks && F_recvfrom) {
00499 return (*F_recvfrom)(s, buf, len, flags, from, fromlen);
00500 } else {
00501 socklen_t casted_len = (socklen_t) *fromlen;
00502 int rc = ::recvfrom(s, (char*) buf, len, flags, from, &casted_len);
00503 *fromlen = casted_len;
00504 return rc;
00505 }
00506 }
00507
00508
00509 int KSocks::sendto (int s, const void *msg, unsigned long int len, int flags,
00510 const sockaddr *to, ksocklen_t tolen) {
00511 if (_useSocks && F_sendto)
00512 return (*F_sendto)(s, msg, len, flags, to, tolen);
00513 else return ::sendto(s, (char*) msg, len, flags, to, (socklen_t)tolen);
00514 }
00515
00516
00517 int KSocks::recv (int s, void *buf, unsigned long int len, int flags) {
00518 if (_useSocks && F_recv)
00519 return (*F_recv)(s, buf, len, flags);
00520 else return ::recv(s, (char*) buf, len, flags);
00521 }
00522
00523
00524 int KSocks::send (int s, const void *msg, unsigned long int len, int flags) {
00525 if (_useSocks && F_send)
00526 return (*F_send)(s, msg, len, flags);
00527 else return ::send(s, (char*) msg, len, flags);
00528 }
00529
00530
00531 int KSocks::getsockname (int s, sockaddr *name, ksocklen_t *namelen) {
00532 if (_useSocks && F_getsockname) {
00533 return (*F_getsockname)(s, name, namelen);
00534 } else {
00535 socklen_t casted_len = *namelen;
00536 int rc = ::getsockname(s, name, &casted_len);
00537 *namelen = casted_len;
00538 return rc;
00539 }
00540 }
00541
00542
00543 int KSocks::getpeername (int s, sockaddr *name, ksocklen_t *namelen) {
00544 if (_useSocks && F_getpeername) {
00545 return (*F_getpeername)(s, name, namelen);
00546 } else {
00547 socklen_t casted_len = *namelen;
00548 int rc = ::getpeername(s, name, &casted_len);
00549 *namelen = casted_len;
00550 return rc;
00551 }
00552 }
00553
00554
00555 int KSocks::accept (int s, sockaddr *addr, ksocklen_t *addrlen) {
00556 if (_useSocks && F_accept) {
00557 return (*F_accept)(s, addr, addrlen);
00558 } else {
00559 socklen_t casted_len = *addrlen;
00560 int rc = ::accept(s, addr, &casted_len);
00561 *addrlen = casted_len;
00562 return rc;
00563 }
00564 }
00565
00566
00567 int KSocks::select (int n, fd_set *readfds, fd_set *writefds,
00568 fd_set *exceptfds, struct timeval *timeout) {
00569 if (_useSocks && F_select)
00570 return (*F_select)(n, readfds, writefds, exceptfds, timeout);
00571 else return ::select(n, readfds, writefds, exceptfds, timeout);
00572 }
00573
00574
00575 int KSocks::listen (int s, int backlog) {
00576 if (_useSocks && F_listen)
00577 return (*F_listen)(s, backlog);
00578 else return ::listen(s, backlog);
00579 }
00580
00581
00582 int KSocks::bind (int sockfd, const sockaddr *my_addr, ksocklen_t addrlen) {
00583 if (_useSocks && F_bind)
00584 return (*F_bind)(sockfd, my_addr, addrlen);
00585 else return ::bind(sockfd, my_addr, (socklen_t)addrlen);
00586 }
00587
00588 int KSocks::bind (int sockfd, sockaddr *my_addr, ksocklen_t addrlen) {
00589 if (_useSocks && F_bind)
00590 return (*F_bind)(sockfd, my_addr, addrlen);
00591 else return ::bind(sockfd, my_addr, (socklen_t)addrlen);
00592 }
00593
00594
00595