mirror of
https://github.com/ZeroTier/ZeroTierOne
synced 2025-08-14 02:27:38 -07:00
clang-format
This commit is contained in:
Adam Ierymenko
parent
d45f280cb7
commit
ba2a4a605c
140 changed files with 19214 additions and 17403 deletions
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@ -11,79 +11,73 @@
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*/
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/****/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "NetBSDEthernetTap.hpp"
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#include <unistd.h>
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#include <signal.h>
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#include "../node/Constants.hpp"
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#include "../node/Mutex.hpp"
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#include "../node/Utils.hpp"
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#include "OSUtils.hpp"
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#include "freebsd_getifmaddrs.h"
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#include <sys/select.h>
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#include <sys/cdefs.h>
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#include <sys/uio.h>
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <algorithm>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <ifaddrs.h>
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#include <iostream>
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#include <map>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/route.h>
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#include <sys/sysctl.h>
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#include "freebsd_getifmaddrs.h"
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#include <string>
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#include <map>
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#include <netinet/in.h>
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#include <set>
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#include <algorithm>
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#include <signal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include <sys/cdefs.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <utility>
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#include "../node/Constants.hpp"
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#include "../node/Utils.hpp"
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#include "../node/Mutex.hpp"
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#include "OSUtils.hpp"
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#include "NetBSDEthernetTap.hpp"
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#include <iostream>
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using namespace std;
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#define ZT_BASE32_CHARS "0123456789abcdefghijklmnopqrstuv"
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// ff:ff:ff:ff:ff:ff with no ADI
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static const ZeroTier::MulticastGroup _blindWildcardMulticastGroup(ZeroTier::MAC(0xff),0);
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static const ZeroTier::MulticastGroup _blindWildcardMulticastGroup(ZeroTier::MAC(0xff), 0);
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namespace ZeroTier {
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NetBSDEthernetTap::NetBSDEthernetTap(
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const char *homePath,
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const MAC &mac,
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const char* homePath,
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const MAC& mac,
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unsigned int mtu,
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unsigned int metric,
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uint64_t nwid,
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const char *friendlyName,
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void (*handler)(void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
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void *arg) :
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_handler(handler),
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_arg(arg),
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_nwid(nwid),
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_mtu(mtu),
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_metric(metric),
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_fd(0),
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_enabled(true)
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const char* friendlyName,
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void (*handler)(void*, uint64_t, const MAC&, const MAC&, unsigned int, unsigned int, const void*, unsigned int),
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void* arg)
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: _handler(handler)
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, _arg(arg)
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, _nwid(nwid)
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, _mtu(mtu)
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, _metric(metric)
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, _fd(0)
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, _enabled(true)
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{
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static Mutex globalTapCreateLock;
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char devpath[64],ethaddr[64],mtustr[32],metstr[32],tmpdevname[32];
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char devpath[64], ethaddr[64], mtustr[32], metstr[32], tmpdevname[32];
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struct stat stattmp;
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Mutex::Lock _gl(globalTapCreateLock);
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@ -93,43 +87,50 @@ NetBSDEthernetTap::NetBSDEthernetTap(
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// we can create /dev/tap*
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std::vector<std::string> devFiles(OSUtils::listDirectory("/dev"));
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for(int i=9993;i<(9993+128);++i) {
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Utils::snprintf(tmpdevname,sizeof(tmpdevname),"tap%d",i);
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Utils::snprintf(devpath,sizeof(devpath),"/dev/%s",tmpdevname);
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if (std::find(devFiles.begin(),devFiles.end(),std::string(tmpdevname)) == devFiles.end()) {
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for (int i = 9993; i < (9993 + 128); ++i) {
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Utils::snprintf(tmpdevname, sizeof(tmpdevname), "tap%d", i);
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Utils::snprintf(devpath, sizeof(devpath), "/dev/%s", tmpdevname);
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if (std::find(devFiles.begin(), devFiles.end(), std::string(tmpdevname)) == devFiles.end()) {
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long cpid = (long)vfork();
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if (cpid == 0) {
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::execl("/sbin/ifconfig","/sbin/ifconfig",tmpdevname,"create",(const char *)0);
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::execl("/sbin/ifconfig", "/sbin/ifconfig", tmpdevname, "create", (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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} else throw std::runtime_error("fork() failed");
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::waitpid(cpid, &exitcode, 0);
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}
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else
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throw std::runtime_error("fork() failed");
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cpid = (long)vfork();
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if (cpid == 0) {
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string tmp;
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sprintf((char*)tmp.c_str(), "%d", i);
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string minor = tmp.c_str();
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::execl("/sbin/mknod","/sbin/mknod",devpath,"c","169",minor.c_str(),(const char *)0);
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::execl("/sbin/mknod", "/sbin/mknod", devpath, "c", "169", minor.c_str(), (const char*)0);
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// http://ftp.netbsd.org/pub/NetBSD/NetBSD-current/src/sys/conf/majors
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// major 169 => tap
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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} else throw std::runtime_error("fork() failed");
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::waitpid(cpid, &exitcode, 0);
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}
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else
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throw std::runtime_error("fork() failed");
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cerr<<"created device "<<devpath<<endl;
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cerr << "created device " << devpath << endl;
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_dev = tmpdevname;
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_fd = ::open( devpath,O_RDWR);
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if (!stat(devpath,&stattmp)) {
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_fd = ::open(devpath, O_RDWR);
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if (! stat(devpath, &stattmp)) {
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if (_fd > 0)
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break;
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else
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throw std::runtime_error("unable to open created tap device ");
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} else {
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}
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else {
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throw std::runtime_error("cannot find /dev node for newly created tap device");
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}
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}
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@ -138,22 +139,23 @@ NetBSDEthernetTap::NetBSDEthernetTap(
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if (_fd <= 0)
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throw std::runtime_error("unable to open TAP device or no more devices available");
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if (fcntl(_fd,F_SETFL,fcntl(_fd,F_GETFL) & ~O_NONBLOCK) == -1) {
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if (fcntl(_fd, F_SETFL, fcntl(_fd, F_GETFL) & ~O_NONBLOCK) == -1) {
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::close(_fd);
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throw std::runtime_error("unable to set flags on file descriptor for TAP device");
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}
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// Configure MAC address and MTU, bring interface up
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Utils::snprintf(ethaddr,sizeof(ethaddr),"%.2x:%.2x:%.2x:%.2x:%.2x:%.2x",(int)mac[0],(int)mac[1],(int)mac[2],(int)mac[3],(int)mac[4],(int)mac[5]);
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Utils::snprintf(mtustr,sizeof(mtustr),"%u",_mtu);
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Utils::snprintf(metstr,sizeof(metstr),"%u",_metric);
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Utils::snprintf(ethaddr, sizeof(ethaddr), "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x", (int)mac[0], (int)mac[1], (int)mac[2], (int)mac[3], (int)mac[4], (int)mac[5]);
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Utils::snprintf(mtustr, sizeof(mtustr), "%u", _mtu);
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Utils::snprintf(metstr, sizeof(metstr), "%u", _metric);
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long cpid = (long)vfork();
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if (cpid == 0) {
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::execl("/sbin/ifconfig","/sbin/ifconfig",_dev.c_str(),"link",ethaddr,"mtu",mtustr,"metric",metstr,"up",(const char *)0);
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::execl("/sbin/ifconfig", "/sbin/ifconfig", _dev.c_str(), "link", ethaddr, "mtu", mtustr, "metric", metstr, "up", (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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::waitpid(cpid, &exitcode, 0);
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if (exitcode) {
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::close(_fd);
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throw std::runtime_error("ifconfig failure setting link-layer address and activating tap interface");
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@ -164,13 +166,14 @@ NetBSDEthernetTap::NetBSDEthernetTap(
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// https://wiki.netbsd.org/tutorials/faking_a_mac_address/
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cpid = (long)vfork();
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if (cpid == 0) {
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string cmdline = "net.link.tap."+string(_dev);
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cmdline += "="+string(ethaddr);
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::execl("/sbin/sysctl","/sbin/sysctl","-w",cmdline.c_str(),(const char *)0);
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string cmdline = "net.link.tap." + string(_dev);
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cmdline += "=" + string(ethaddr);
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::execl("/sbin/sysctl", "/sbin/sysctl", "-w", cmdline.c_str(), (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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::waitpid(cpid, &exitcode, 0);
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if (exitcode) {
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::close(_fd);
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throw std::runtime_error("sysctl failure setting link-layer address and activating tap interface");
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@ -178,17 +181,16 @@ NetBSDEthernetTap::NetBSDEthernetTap(
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}
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// Set close-on-exec so that devices cannot persist if we fork/exec for update
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fcntl(_fd,F_SETFD,fcntl(_fd,F_GETFD) | FD_CLOEXEC);
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fcntl(_fd, F_SETFD, fcntl(_fd, F_GETFD) | FD_CLOEXEC);
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::pipe(_shutdownSignalPipe);
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_thread = Thread::start(this);
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}
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NetBSDEthernetTap::~NetBSDEthernetTap()
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{
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::write(_shutdownSignalPipe[1],"\0",1); // causes thread to exit
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::write(_shutdownSignalPipe[1], "\0", 1); // causes thread to exit
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Thread::join(_thread);
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::close(_fd);
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::close(_shutdownSignalPipe[0]);
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@ -196,23 +198,27 @@ NetBSDEthernetTap::~NetBSDEthernetTap()
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long cpid = (long)vfork();
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if (cpid == 0) {
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::execl("/sbin/ifconfig","/sbin/ifconfig",_dev.c_str(),"destroy",(const char *)0);
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::execl("/sbin/ifconfig", "/sbin/ifconfig", _dev.c_str(), "destroy", (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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::waitpid(cpid, &exitcode, 0);
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}
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cpid = (long)vfork();
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if (cpid == 0) {
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string tmp="/dev/";
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tmp+=_dev.c_str();
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::execl("/bin/rm","/bin/rm",tmp.c_str(),(const char *)0);
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string tmp = "/dev/";
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tmp += _dev.c_str();
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::execl("/bin/rm", "/bin/rm", tmp.c_str(), (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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} else throw std::runtime_error("fork() failed");
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::waitpid(cpid, &exitcode, 0);
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}
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else
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throw std::runtime_error("fork() failed");
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}
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void NetBSDEthernetTap::setEnabled(bool en)
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@ -225,56 +231,58 @@ bool NetBSDEthernetTap::enabled() const
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return _enabled;
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}
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static bool ___removeIp(const std::string &_dev,const InetAddress &ip)
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static bool ___removeIp(const std::string& _dev, const InetAddress& ip)
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{
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long cpid = (long)vfork();
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if (cpid == 0) {
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execl("/sbin/ifconfig","/sbin/ifconfig",_dev.c_str(),"inet",ip.toIpString().c_str(),"-alias",(const char *)0);
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execl("/sbin/ifconfig", "/sbin/ifconfig", _dev.c_str(), "inet", ip.toIpString().c_str(), "-alias", (const char*)0);
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_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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waitpid(cpid,&exitcode,0);
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waitpid(cpid, &exitcode, 0);
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return (exitcode == 0);
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}
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return false; // never reached, make compiler shut up about return value
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return false; // never reached, make compiler shut up about return value
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}
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bool NetBSDEthernetTap::addIp(const InetAddress &ip)
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bool NetBSDEthernetTap::addIp(const InetAddress& ip)
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{
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if (!ip)
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if (! ip)
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return false;
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std::vector<InetAddress> allIps(ips());
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if (std::find(allIps.begin(),allIps.end(),ip) != allIps.end())
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return true; // IP/netmask already assigned
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if (std::find(allIps.begin(), allIps.end(), ip) != allIps.end())
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return true; // IP/netmask already assigned
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// Remove and reconfigure if address is the same but netmask is different
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for(std::vector<InetAddress>::iterator i(allIps.begin());i!=allIps.end();++i) {
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if ((i->ipsEqual(ip))&&(i->netmaskBits() != ip.netmaskBits())) {
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if (___removeIp(_dev,*i))
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for (std::vector<InetAddress>::iterator i(allIps.begin()); i != allIps.end(); ++i) {
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if ((i->ipsEqual(ip)) && (i->netmaskBits() != ip.netmaskBits())) {
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if (___removeIp(_dev, *i))
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break;
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}
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}
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long cpid = (long)vfork();
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if (cpid == 0) {
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::execl("/sbin/ifconfig","/sbin/ifconfig",_dev.c_str(),ip.isV4() ? "inet" : "inet6",ip.toString().c_str(),"alias",(const char *)0);
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::execl("/sbin/ifconfig", "/sbin/ifconfig", _dev.c_str(), ip.isV4() ? "inet" : "inet6", ip.toString().c_str(), "alias", (const char*)0);
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::_exit(-1);
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} else if (cpid > 0) {
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}
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else if (cpid > 0) {
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int exitcode = -1;
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::waitpid(cpid,&exitcode,0);
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::waitpid(cpid, &exitcode, 0);
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return (exitcode == 0);
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}
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return false;
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}
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bool NetBSDEthernetTap::removeIp(const InetAddress &ip)
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bool NetBSDEthernetTap::removeIp(const InetAddress& ip)
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{
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if (!ip)
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if (! ip)
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return false;
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std::vector<InetAddress> allIps(ips());
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if (std::find(allIps.begin(),allIps.end(),ip) != allIps.end()) {
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if (___removeIp(_dev,ip))
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if (std::find(allIps.begin(), allIps.end(), ip) != allIps.end()) {
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if (___removeIp(_dev, ip))
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return true;
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}
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return false;
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@ -282,28 +290,28 @@ bool NetBSDEthernetTap::removeIp(const InetAddress &ip)
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std::vector<InetAddress> NetBSDEthernetTap::ips() const
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{
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struct ifaddrs *ifa = (struct ifaddrs *)0;
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struct ifaddrs* ifa = (struct ifaddrs*)0;
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if (getifaddrs(&ifa))
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return std::vector<InetAddress>();
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std::vector<InetAddress> r;
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|
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struct ifaddrs *p = ifa;
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struct ifaddrs* p = ifa;
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while (p) {
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if ((!strcmp(p->ifa_name,_dev.c_str()))&&(p->ifa_addr)&&(p->ifa_netmask)&&(p->ifa_addr->sa_family == p->ifa_netmask->sa_family)) {
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switch(p->ifa_addr->sa_family) {
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if ((! strcmp(p->ifa_name, _dev.c_str())) && (p->ifa_addr) && (p->ifa_netmask) && (p->ifa_addr->sa_family == p->ifa_netmask->sa_family)) {
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switch (p->ifa_addr->sa_family) {
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case AF_INET: {
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struct sockaddr_in *sin = (struct sockaddr_in *)p->ifa_addr;
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struct sockaddr_in *nm = (struct sockaddr_in *)p->ifa_netmask;
|
||||
r.push_back(InetAddress(&(sin->sin_addr.s_addr),4,Utils::countBits((uint32_t)nm->sin_addr.s_addr)));
|
||||
} break;
|
||||
struct sockaddr_in* sin = (struct sockaddr_in*)p->ifa_addr;
|
||||
struct sockaddr_in* nm = (struct sockaddr_in*)p->ifa_netmask;
|
||||
r.push_back(InetAddress(&(sin->sin_addr.s_addr), 4, Utils::countBits((uint32_t)nm->sin_addr.s_addr)));
|
||||
} break;
|
||||
case AF_INET6: {
|
||||
struct sockaddr_in6 *sin = (struct sockaddr_in6 *)p->ifa_addr;
|
||||
struct sockaddr_in6 *nm = (struct sockaddr_in6 *)p->ifa_netmask;
|
||||
struct sockaddr_in6* sin = (struct sockaddr_in6*)p->ifa_addr;
|
||||
struct sockaddr_in6* nm = (struct sockaddr_in6*)p->ifa_netmask;
|
||||
uint32_t b[4];
|
||||
memcpy(b,nm->sin6_addr.s6_addr,sizeof(b));
|
||||
r.push_back(InetAddress(sin->sin6_addr.s6_addr,16,Utils::countBits(b[0]) + Utils::countBits(b[1]) + Utils::countBits(b[2]) + Utils::countBits(b[3])));
|
||||
} break;
|
||||
memcpy(b, nm->sin6_addr.s6_addr, sizeof(b));
|
||||
r.push_back(InetAddress(sin->sin6_addr.s6_addr, 16, Utils::countBits(b[0]) + Utils::countBits(b[1]) + Utils::countBits(b[2]) + Utils::countBits(b[3])));
|
||||
} break;
|
||||
}
|
||||
}
|
||||
p = p->ifa_next;
|
||||
|
|
@ -312,22 +320,22 @@ std::vector<InetAddress> NetBSDEthernetTap::ips() const
|
|||
if (ifa)
|
||||
freeifaddrs(ifa);
|
||||
|
||||
std::sort(r.begin(),r.end());
|
||||
std::unique(r.begin(),r.end());
|
||||
std::sort(r.begin(), r.end());
|
||||
std::unique(r.begin(), r.end());
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
void NetBSDEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
|
||||
void NetBSDEthernetTap::put(const MAC& from, const MAC& to, unsigned int etherType, const void* data, unsigned int len)
|
||||
{
|
||||
char putBuf[4096];
|
||||
if ((_fd > 0)&&(len <= _mtu)&&(_enabled)) {
|
||||
to.copyTo(putBuf,6);
|
||||
from.copyTo(putBuf + 6,6);
|
||||
*((uint16_t *)(putBuf + 12)) = htons((uint16_t)etherType);
|
||||
memcpy(putBuf + 14,data,len);
|
||||
if ((_fd > 0) && (len <= _mtu) && (_enabled)) {
|
||||
to.copyTo(putBuf, 6);
|
||||
from.copyTo(putBuf + 6, 6);
|
||||
*((uint16_t*)(putBuf + 12)) = htons((uint16_t)etherType);
|
||||
memcpy(putBuf + 14, data, len);
|
||||
len += 14;
|
||||
::write(_fd,putBuf,len);
|
||||
::write(_fd, putBuf, len);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -336,23 +344,23 @@ std::string NetBSDEthernetTap::deviceName() const
|
|||
return _dev;
|
||||
}
|
||||
|
||||
void NetBSDEthernetTap::setFriendlyName(const char *friendlyName)
|
||||
void NetBSDEthernetTap::setFriendlyName(const char* friendlyName)
|
||||
{
|
||||
}
|
||||
|
||||
void NetBSDEthernetTap::scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed)
|
||||
void NetBSDEthernetTap::scanMulticastGroups(std::vector<MulticastGroup>& added, std::vector<MulticastGroup>& removed)
|
||||
{
|
||||
std::vector<MulticastGroup> newGroups;
|
||||
|
||||
struct ifmaddrs *ifmap = (struct ifmaddrs *)0;
|
||||
if (!getifmaddrs(&ifmap)) {
|
||||
struct ifmaddrs *p = ifmap;
|
||||
struct ifmaddrs* ifmap = (struct ifmaddrs*)0;
|
||||
if (! getifmaddrs(&ifmap)) {
|
||||
struct ifmaddrs* p = ifmap;
|
||||
while (p) {
|
||||
if (p->ifma_addr->sa_family == AF_LINK) {
|
||||
struct sockaddr_dl *in = (struct sockaddr_dl *)p->ifma_name;
|
||||
struct sockaddr_dl *la = (struct sockaddr_dl *)p->ifma_addr;
|
||||
if ((la->sdl_alen == 6)&&(in->sdl_nlen <= _dev.length())&&(!memcmp(_dev.data(),in->sdl_data,in->sdl_nlen)))
|
||||
newGroups.push_back(MulticastGroup(MAC(la->sdl_data + la->sdl_nlen,6),0));
|
||||
struct sockaddr_dl* in = (struct sockaddr_dl*)p->ifma_name;
|
||||
struct sockaddr_dl* la = (struct sockaddr_dl*)p->ifma_addr;
|
||||
if ((la->sdl_alen == 6) && (in->sdl_nlen <= _dev.length()) && (! memcmp(_dev.data(), in->sdl_data, in->sdl_nlen)))
|
||||
newGroups.push_back(MulticastGroup(MAC(la->sdl_data + la->sdl_nlen, 6), 0));
|
||||
}
|
||||
p = p->ifma_next;
|
||||
}
|
||||
|
|
@ -360,18 +368,18 @@ void NetBSDEthernetTap::scanMulticastGroups(std::vector<MulticastGroup> &added,s
|
|||
}
|
||||
|
||||
std::vector<InetAddress> allIps(ips());
|
||||
for(std::vector<InetAddress>::iterator ip(allIps.begin());ip!=allIps.end();++ip)
|
||||
for (std::vector<InetAddress>::iterator ip(allIps.begin()); ip != allIps.end(); ++ip)
|
||||
newGroups.push_back(MulticastGroup::deriveMulticastGroupForAddressResolution(*ip));
|
||||
|
||||
std::sort(newGroups.begin(),newGroups.end());
|
||||
std::unique(newGroups.begin(),newGroups.end());
|
||||
std::sort(newGroups.begin(), newGroups.end());
|
||||
std::unique(newGroups.begin(), newGroups.end());
|
||||
|
||||
for(std::vector<MulticastGroup>::iterator m(newGroups.begin());m!=newGroups.end();++m) {
|
||||
if (!std::binary_search(_multicastGroups.begin(),_multicastGroups.end(),*m))
|
||||
for (std::vector<MulticastGroup>::iterator m(newGroups.begin()); m != newGroups.end(); ++m) {
|
||||
if (! std::binary_search(_multicastGroups.begin(), _multicastGroups.end(), *m))
|
||||
added.push_back(*m);
|
||||
}
|
||||
for(std::vector<MulticastGroup>::iterator m(_multicastGroups.begin());m!=_multicastGroups.end();++m) {
|
||||
if (!std::binary_search(newGroups.begin(),newGroups.end(),*m))
|
||||
for (std::vector<MulticastGroup>::iterator m(_multicastGroups.begin()); m != _multicastGroups.end(); ++m) {
|
||||
if (! std::binary_search(newGroups.begin(), newGroups.end(), *m))
|
||||
removed.push_back(*m);
|
||||
}
|
||||
|
||||
|
|
@ -422,12 +430,11 @@ bool NetBSDEthernetTap::updateMulticastGroups(std::set<MulticastGroup> &groups)
|
|||
}
|
||||
*/
|
||||
|
||||
void NetBSDEthernetTap::threadMain()
|
||||
throw()
|
||||
void NetBSDEthernetTap::threadMain() throw()
|
||||
{
|
||||
fd_set readfds,nullfds;
|
||||
MAC to,from;
|
||||
int n,nfds,r;
|
||||
fd_set readfds, nullfds;
|
||||
MAC to, from;
|
||||
int n, nfds, r;
|
||||
char getBuf[8194];
|
||||
|
||||
// Wait for a moment after startup -- wait for Network to finish
|
||||
|
|
@ -436,37 +443,38 @@ void NetBSDEthernetTap::threadMain()
|
|||
|
||||
FD_ZERO(&readfds);
|
||||
FD_ZERO(&nullfds);
|
||||
nfds = (int)std::max(_shutdownSignalPipe[0],_fd) + 1;
|
||||
nfds = (int)std::max(_shutdownSignalPipe[0], _fd) + 1;
|
||||
|
||||
r = 0;
|
||||
for(;;) {
|
||||
FD_SET(_shutdownSignalPipe[0],&readfds);
|
||||
FD_SET(_fd,&readfds);
|
||||
select(nfds,&readfds,&nullfds,&nullfds,(struct timeval *)0);
|
||||
for (;;) {
|
||||
FD_SET(_shutdownSignalPipe[0], &readfds);
|
||||
FD_SET(_fd, &readfds);
|
||||
select(nfds, &readfds, &nullfds, &nullfds, (struct timeval*)0);
|
||||
|
||||
if (FD_ISSET(_shutdownSignalPipe[0],&readfds)) // writes to shutdown pipe terminate thread
|
||||
if (FD_ISSET(_shutdownSignalPipe[0], &readfds)) // writes to shutdown pipe terminate thread
|
||||
break;
|
||||
|
||||
if (FD_ISSET(_fd,&readfds)) {
|
||||
n = (int)::read(_fd,getBuf + r,sizeof(getBuf) - r);
|
||||
if (FD_ISSET(_fd, &readfds)) {
|
||||
n = (int)::read(_fd, getBuf + r, sizeof(getBuf) - r);
|
||||
if (n < 0) {
|
||||
if ((errno != EINTR)&&(errno != ETIMEDOUT))
|
||||
if ((errno != EINTR) && (errno != ETIMEDOUT))
|
||||
break;
|
||||
} else {
|
||||
}
|
||||
else {
|
||||
// Some tap drivers like to send the ethernet frame and the
|
||||
// payload in two chunks, so handle that by accumulating
|
||||
// data until we have at least a frame.
|
||||
r += n;
|
||||
if (r > 14) {
|
||||
if (r > ((int)_mtu + 14)) // sanity check for weird TAP behavior on some platforms
|
||||
if (r > ((int)_mtu + 14)) // sanity check for weird TAP behavior on some platforms
|
||||
r = _mtu + 14;
|
||||
|
||||
if (_enabled) {
|
||||
to.setTo(getBuf,6);
|
||||
from.setTo(getBuf + 6,6);
|
||||
unsigned int etherType = ntohs(((const uint16_t *)getBuf)[6]);
|
||||
to.setTo(getBuf, 6);
|
||||
from.setTo(getBuf + 6, 6);
|
||||
unsigned int etherType = ntohs(((const uint16_t*)getBuf)[6]);
|
||||
// TODO: VLAN support
|
||||
_handler(_arg,_nwid,from,to,etherType,0,(const void *)(getBuf + 14),r - 14);
|
||||
_handler(_arg, _nwid, from, to, etherType, 0, (const void*)(getBuf + 14), r - 14);
|
||||
}
|
||||
|
||||
r = 0;
|
||||
|
|
@ -476,4 +484,4 @@ void NetBSDEthernetTap::threadMain()
|
|||
}
|
||||
}
|
||||
|
||||
} // namespace ZeroTier
|
||||
} // namespace ZeroTier
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue