From 538e8a86c8b907222303ebec0b97a6a9a87fd849 Mon Sep 17 00:00:00 2001 From: Adam Ierymenko Date: Sat, 26 Jul 2014 13:10:41 -0700 Subject: Move node/osdep/ to sys/ --- node/osdep/LinuxRoutingTable.cpp | 247 --------------------------------------- 1 file changed, 247 deletions(-) delete mode 100644 node/osdep/LinuxRoutingTable.cpp (limited to 'node/osdep/LinuxRoutingTable.cpp') diff --git a/node/osdep/LinuxRoutingTable.cpp b/node/osdep/LinuxRoutingTable.cpp deleted file mode 100644 index 67a5b22d..00000000 --- a/node/osdep/LinuxRoutingTable.cpp +++ /dev/null @@ -1,247 +0,0 @@ -/* - * ZeroTier One - Global Peer to Peer Ethernet - * Copyright (C) 2011-2014 ZeroTier Networks LLC - * - * 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 . - * - * -- - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "../Constants.hpp" -#include "../Utils.hpp" -#include "LinuxRoutingTable.hpp" - -#define ZT_LINUX_IP_COMMAND "/sbin/ip" - -namespace ZeroTier { - -LinuxRoutingTable::LinuxRoutingTable() -{ -} - -LinuxRoutingTable::~LinuxRoutingTable() -{ -} - -std::vector LinuxRoutingTable::get(bool includeLinkLocal,bool includeLoopback) const -{ - char buf[131072]; - char *stmp,*stmp2; - std::vector entries; - - { - int fd = ::open("/proc/net/route",O_RDONLY); - if (fd <= 0) - buf[0] = (char)0; - else { - int n = (int)::read(fd,buf,sizeof(buf) - 1); - ::close(fd); - if (n < 0) n = 0; - buf[n] = (char)0; - } - } - - int lineno = 0; - for(char *line=Utils::stok(buf,"\r\n",&stmp);(line);line=Utils::stok((char *)0,"\r\n",&stmp)) { - if (lineno == 0) { - ++lineno; - continue; // skip header - } - - char *iface = (char *)0; - uint32_t destination = 0; - uint32_t gateway = 0; - int metric = 0; - uint32_t mask = 0; - - int fno = 0; - for(char *f=Utils::stok(line,"\t \r\n",&stmp2);(f);f=Utils::stok((char *)0,"\t \r\n",&stmp2)) { - switch(fno) { - case 0: iface = f; break; - case 1: destination = (uint32_t)Utils::hexStrToULong(f); break; - case 2: gateway = (uint32_t)Utils::hexStrToULong(f); break; - case 6: metric = (int)Utils::strToInt(f); break; - case 7: mask = (uint32_t)Utils::hexStrToULong(f); break; - } - ++fno; - } - - if ((iface)&&(destination)) { - RoutingTable::Entry e; - if (destination) - e.destination.set(&destination,4,Utils::countBits(mask)); - e.gateway.set(&gateway,4,0); - e.deviceIndex = 0; // not used on Linux - e.metric = metric; - Utils::scopy(e.device,sizeof(e.device),iface); - if ((e.destination)&&((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback())&&(strcmp(iface,"lo"))))) - entries.push_back(e); - } - - ++lineno; - } - - { - int fd = ::open("/proc/net/ipv6_route",O_RDONLY); - if (fd <= 0) - buf[0] = (char)0; - else { - int n = (int)::read(fd,buf,sizeof(buf) - 1); - ::close(fd); - if (n < 0) n = 0; - buf[n] = (char)0; - } - } - - for(char *line=Utils::stok(buf,"\r\n",&stmp);(line);line=Utils::stok((char *)0,"\r\n",&stmp)) { - char *destination = (char *)0; - unsigned int destPrefixLen = 0; - char *gateway = (char *)0; // next hop in ipv6 terminology - int metric = 0; - char *device = (char *)0; - - int fno = 0; - for(char *f=Utils::stok(line,"\t \r\n",&stmp2);(f);f=Utils::stok((char *)0,"\t \r\n",&stmp2)) { - switch(fno) { - case 0: destination = f; break; - case 1: destPrefixLen = (unsigned int)Utils::hexStrToULong(f); break; - case 4: gateway = f; break; - case 5: metric = (int)Utils::hexStrToLong(f); break; - case 9: device = f; break; - } - ++fno; - } - - if ((device)&&(destination)) { - unsigned char tmp[16]; - RoutingTable::Entry e; - Utils::unhex(destination,tmp,16); - if ((!Utils::isZero(tmp,16))&&(tmp[0] != 0xff)) - e.destination.set(tmp,16,destPrefixLen); - Utils::unhex(gateway,tmp,16); - e.gateway.set(tmp,16,0); - e.deviceIndex = 0; // not used on Linux - e.metric = metric; - Utils::scopy(e.device,sizeof(e.device),device); - if ((e.destination)&&((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback())&&(strcmp(device,"lo"))))) - entries.push_back(e); - } - } - - std::sort(entries.begin(),entries.end()); - return entries; -} - -RoutingTable::Entry LinuxRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric) -{ - if ((!gateway)&&((!device)||(!device[0]))) - return RoutingTable::Entry(); - - std::vector rtab(get(true,true)); - - for(std::vector::iterator e(rtab.begin());e!=rtab.end();++e) { - if (e->destination == destination) { - if (((!device)||(!device[0]))||(!strcmp(device,e->device))) { - } - } - } - - if (metric < 0) - return RoutingTable::Entry(); - - - - rtab = get(true,true); - std::vector::iterator bestEntry(rtab.end()); - for(std::vector::iterator e(rtab.begin());e!=rtab.end();++e) { - if ((e->destination == destination)&&(e->gateway.ipsEqual(gateway))) { - if ((device)&&(device[0])) { - if (!strcmp(device,e->device)) { - if (metric == e->metric) - bestEntry = e; - } - } - if (bestEntry == rtab.end()) - bestEntry = e; - } - } - if (bestEntry != rtab.end()) - return *bestEntry; - - return RoutingTable::Entry(); -} - -} // namespace ZeroTier - -// Enable and build to test routing table interface -//#if 0 -using namespace ZeroTier; -int main(int argc,char **argv) -{ - LinuxRoutingTable rt; - - printf(" \n"); - std::vector ents(rt.get()); - for(std::vector::iterator e(ents.begin());e!=ents.end();++e) - printf("%s\n",e->toString().c_str()); - printf("\n"); - - printf("adding 1.1.1.0 and 2.2.2.0...\n"); - rt.set(InetAddress("1.1.1.0",24),InetAddress("1.2.3.4",0),(const char *)0,1); - rt.set(InetAddress("2.2.2.0",24),InetAddress(),"en0",1); - printf("\n"); - - printf(" \n"); - ents = rt.get(); - for(std::vector::iterator e(ents.begin());e!=ents.end();++e) - printf("%s\n",e->toString().c_str()); - printf("\n"); - - printf("deleting 1.1.1.0 and 2.2.2.0...\n"); - rt.set(InetAddress("1.1.1.0",24),InetAddress("1.2.3.4",0),(const char *)0,-1); - rt.set(InetAddress("2.2.2.0",24),InetAddress(),"en0",-1); - printf("\n"); - - printf(" \n"); - ents = rt.get(); - for(std::vector::iterator e(ents.begin());e!=ents.end();++e) - printf("%s\n",e->toString().c_str()); - printf("\n"); - - return 0; -} -//#endif -- cgit v1.2.3