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Diffstat (limited to 'osdep/OSXEthernetTapFactory.cpp')
| -rw-r--r-- | osdep/OSXEthernetTapFactory.cpp | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/osdep/OSXEthernetTapFactory.cpp b/osdep/OSXEthernetTapFactory.cpp deleted file mode 100644 index 4cad8daa..00000000 --- a/osdep/OSXEthernetTapFactory.cpp +++ /dev/null @@ -1,122 +0,0 @@ -/* - * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2015 ZeroTier, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * -- - * - * ZeroTier may be used and distributed under the terms of the GPLv3, which - * are available at: http://www.gnu.org/licenses/gpl-3.0.html - * - * If you would like to embed ZeroTier into a commercial application or - * redistribute it in a modified binary form, please contact ZeroTier Networks - * LLC. Start here: http://www.zerotier.com/ - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/stat.h> - -#include "OSXEthernetTapFactory.hpp" -#include "OSXEthernetTap.hpp" - -#include "../node/Utils.hpp" - -namespace ZeroTier { - -OSXEthernetTapFactory::OSXEthernetTapFactory(const char *pathToTapKext,const char *tapKextName) : - _pathToTapKext((pathToTapKext) ? pathToTapKext : ""), - _tapKextName((tapKextName) ? tapKextName : "") -{ - struct stat stattmp; - - if ((_pathToTapKext.length())&&(_tapKextName.length())) { - if (stat("/dev/zt0",&stattmp)) { - long kextpid = (long)vfork(); - if (kextpid == 0) { - ::chdir(_pathToTapKext.c_str()); - Utils::redirectUnixOutputs("/dev/null",(const char *)0); - ::execl("/sbin/kextload","/sbin/kextload","-q","-repository",_pathToTapKext.c_str(),_tapKextName.c_str(),(const char *)0); - ::_exit(-1); - } else if (kextpid > 0) { - int exitcode = -1; - ::waitpid(kextpid,&exitcode,0); - } else throw std::runtime_error("unable to create subprocess with fork()"); - } - } - - if (stat("/dev/zt0",&stattmp)) { - ::usleep(500); // give tap device driver time to start up and try again - if (stat("/dev/zt0",&stattmp)) - throw std::runtime_error("/dev/zt# tap devices do not exist and unable to load kernel extension"); - } -} - -OSXEthernetTapFactory::~OSXEthernetTapFactory() -{ - Mutex::Lock _l(_devices_m); - for(std::vector<EthernetTap *>::iterator d(_devices.begin());d!=_devices.end();++d) - delete *d; - - if ((_pathToTapKext.length())&&(_tapKextName.length())) { - // Attempt to unload kext. If anything else is using a /dev/zt# node, this - // fails and the kext stays in the kernel. - char tmp[16384]; - sprintf(tmp,"%s/%s",_pathToTapKext.c_str(),_tapKextName.c_str()); - long kextpid = (long)vfork(); - if (kextpid == 0) { - Utils::redirectUnixOutputs("/dev/null",(const char *)0); - ::execl("/sbin/kextunload","/sbin/kextunload",tmp,(const char *)0); - ::_exit(-1); - } else if (kextpid > 0) { - int exitcode = -1; - ::waitpid(kextpid,&exitcode,0); - } - } -} - -EthernetTap *OSXEthernetTapFactory::open( - const MAC &mac, - unsigned int mtu, - unsigned int metric, - uint64_t nwid, - const char *desiredDevice, - const char *friendlyName, - void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &), - void *arg) -{ - Mutex::Lock _l(_devices_m); - EthernetTap *t = new OSXEthernetTap(mac,mtu,metric,nwid,desiredDevice,friendlyName,handler,arg); - _devices.push_back(t); - return t; -} - -void OSXEthernetTapFactory::close(EthernetTap *tap,bool destroyPersistentDevices) -{ - { - Mutex::Lock _l(_devices_m); - for(std::vector<EthernetTap *>::iterator d(_devices.begin());d!=_devices.end();++d) { - if (*d == tap) { - _devices.erase(d); - break; - } - } - } - delete tap; -} - -} // namespace ZeroTier |