diff options
Diffstat (limited to 'osdep')
| -rw-r--r-- | osdep/OSXEthernetTap.cpp | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/osdep/OSXEthernetTap.cpp b/osdep/OSXEthernetTap.cpp index c30d3988..05eca4f8 100644 --- a/osdep/OSXEthernetTap.cpp +++ b/osdep/OSXEthernetTap.cpp @@ -263,6 +263,7 @@ static inline void _intl_freeifmaddrs(struct _intl_ifmaddrs *ifmp) #include "../node/Constants.hpp" #include "../node/Utils.hpp" #include "../node/Mutex.hpp" +#include "../node/Dictionary.hpp" #include "OSUtils.hpp" #include "OSXEthernetTap.hpp" @@ -333,14 +334,16 @@ OSXEthernetTap::OSXEthernetTap( _fd(0), _enabled(true) { - char devpath[64],ethaddr[64],mtustr[32],metstr[32]; + char devpath[64],ethaddr[64],mtustr[32],metstr[32],nwids[32]; struct stat stattmp; - Mutex::Lock _gl(globalTapCreateLock); + Utils::snprintf(nwids,sizeof(nwids),"%.16llx",nwid); if (mtu > 2800) throw std::runtime_error("max tap MTU is 2800"); + Mutex::Lock _gl(globalTapCreateLock); + if (stat("/dev/zt0",&stattmp)) { if (homePath) { long kextpid = (long)vfork(); @@ -362,20 +365,22 @@ OSXEthernetTap::OSXEthernetTap( // Try to reopen the last device we had, if we had one and it's still unused. bool recalledDevice = false; - /* - if ((desiredDevice)&&(desiredDevice[0] == 'z')&&(desiredDevice[1] == 't')) { - if ((strchr(desiredDevice,'/'))||(strchr(desiredDevice,'.'))) // security sanity check - throw std::runtime_error("invalid desiredDevice parameter"); - Utils::snprintf(devpath,sizeof(devpath),"/dev/%s",desiredDevice); - if (stat(devpath,&stattmp) == 0) { - _fd = ::open(devpath,O_RDWR); - if (_fd > 0) { - _dev = desiredDevice; - recalledDevice = true; + std::string devmapbuf; + Dictionary devmap; + if (OSUtils::readFile((_homePath + ZT_PATH_SEPARATOR_S + "devicemap").c_str(),devmapbuf)) { + devmap.fromString(devmapbuf); + std::string desiredDevice(devmap.get(nwids,"")); + if (desiredDevice.length() > 2) { + Utils::snprintf(devpath,sizeof(devpath),"/dev/%s",desiredDevice.c_str()); + if (stat(devpath,&stattmp) == 0) { + _fd = ::open(devpath,O_RDWR); + if (_fd > 0) { + _dev = desiredDevice; + recalledDevice = true; + } } } } - */ // Open the first unused tap device if we didn't recall a previous one. if (!recalledDevice) { @@ -425,9 +430,12 @@ OSXEthernetTap::OSXEthernetTap( ::pipe(_shutdownSignalPipe); - _thread = Thread::start(this); - ++globalTapsRunning; + + devmap[nwids] = _dev; + OSUtils::writeFile((_homePath + ZT_PATH_SEPARATOR_S + "devicemap").c_str(),devmap.toString()); + + _thread = Thread::start(this); } OSXEthernetTap::~OSXEthernetTap() |