diff options
author | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-06-21 15:53:38 -0700 |
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committer | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-06-21 15:53:38 -0700 |
commit | 8ca4f22f1d426f11151392ae4bc29c69dc2500a0 (patch) | |
tree | a9b7e88f55361b899084a97152e6113b43f7c51b /attic | |
parent | 674b84d908dd74fc639fc9279fb5d5fc7981c4fc (diff) | |
download | infinitytier-8ca4f22f1d426f11151392ae4bc29c69dc2500a0.tar.gz infinitytier-8ca4f22f1d426f11151392ae4bc29c69dc2500a0.zip |
cleanup
Diffstat (limited to 'attic')
-rw-r--r-- | attic/RoutingTable.cpp | 608 | ||||
-rw-r--r-- | attic/RoutingTable.hpp | 92 |
2 files changed, 0 insertions, 700 deletions
diff --git a/attic/RoutingTable.cpp b/attic/RoutingTable.cpp deleted file mode 100644 index f8856d79..00000000 --- a/attic/RoutingTable.cpp +++ /dev/null @@ -1,608 +0,0 @@ -/* - * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/ - * - * 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/>. - */ - -#include "../node/Constants.hpp" - -#ifdef __WINDOWS__ -#include <WinSock2.h> -#include <Windows.h> -#include <netioapi.h> -#include <IPHlpApi.h> -#endif - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#ifdef __UNIX_LIKE__ -#include <unistd.h> -#include <sys/param.h> -#include <sys/sysctl.h> -#include <sys/socket.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <net/route.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <ifaddrs.h> -#endif - -#include <vector> -#include <algorithm> -#include <utility> - -#include "RoutingTable.hpp" - -#define ZT_BSD_ROUTE_CMD "/sbin/route" -#define ZT_LINUX_IP_COMMAND "/sbin/ip" - -namespace ZeroTier { - -// --------------------------------------------------------------------------- - -#ifdef __LINUX__ - -std::vector<RoutingTable::Entry> RoutingTable::get(bool includeLinkLocal,bool includeLoopback) -{ - char buf[131072]; - char *stmp,*stmp2; - std::vector<RoutingTable::Entry> 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 target = 0; - uint32_t via = 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: target = (uint32_t)Utils::hexStrToULong(f); break; - case 2: via = (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)&&(target)) { - RoutingTable::Entry e; - if (target) - e.target.set(&target,4,Utils::countBits(mask)); - e.via.set(&via,4,0); - e.deviceIndex = 0; // not used on Linux - e.metric = metric; - Utils::scopy(e.device,sizeof(e.device),iface); - if ((e.target)&&((includeLinkLocal)||(!e.target.isLinkLocal()))&&((includeLoopback)||((!e.target.isLoopback())&&(!e.via.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 *target = (char *)0; - unsigned int destPrefixLen = 0; - char *via = (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: target = f; break; - case 1: destPrefixLen = (unsigned int)Utils::hexStrToULong(f); break; - case 4: via = f; break; - case 5: metric = (int)Utils::hexStrToLong(f); break; - case 9: device = f; break; - } - ++fno; - } - - if ((device)&&(target)) { - unsigned char tmp[16]; - RoutingTable::Entry e; - Utils::unhex(target,tmp,16); - if ((!Utils::isZero(tmp,16))&&(tmp[0] != 0xff)) - e.target.set(tmp,16,destPrefixLen); - Utils::unhex(via,tmp,16); - e.via.set(tmp,16,0); - e.deviceIndex = 0; // not used on Linux - e.metric = metric; - Utils::scopy(e.device,sizeof(e.device),device); - if ((e.target)&&((includeLinkLocal)||(!e.target.isLinkLocal()))&&((includeLoopback)||((!e.target.isLoopback())&&(!e.via.isLoopback())&&(strcmp(device,"lo"))))) - entries.push_back(e); - } - } - - std::sort(entries.begin(),entries.end()); - return entries; -} - -RoutingTable::Entry RoutingTable::set(const InetAddress &target,const InetAddress &via,const char *device,int metric,bool ifscope) -{ - char metstr[128]; - - if ((!via)&&((!device)||(!device[0]))) - return RoutingTable::Entry(); - - Utils::snprintf(metstr,sizeof(metstr),"%d",metric); - - if (metric < 0) { - long pid = (long)vfork(); - if (pid == 0) { - if (via) { - if ((device)&&(device[0])) { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",target.toString().c_str(),"via",via.toIpString().c_str(),"dev",device,(const char *)0); - } else { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",target.toString().c_str(),"via",via.toIpString().c_str(),(const char *)0); - } - } else { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",target.toString().c_str(),"dev",device,(const char *)0); - } - ::_exit(-1); - } else if (pid > 0) { - int exitcode = -1; - ::waitpid(pid,&exitcode,0); - } - } else { - long pid = (long)vfork(); - if (pid == 0) { - if (via) { - if ((device)&&(device[0])) { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",target.toString().c_str(),"metric",metstr,"via",via.toIpString().c_str(),"dev",device,(const char *)0); - } else { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",target.toString().c_str(),"metric",metstr,"via",via.toIpString().c_str(),(const char *)0); - } - } else { - ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",target.toString().c_str(),"metric",metstr,"dev",device,(const char *)0); - } - ::_exit(-1); - } else if (pid > 0) { - int exitcode = -1; - ::waitpid(pid,&exitcode,0); - } - } - - std::vector<RoutingTable::Entry> rtab(get(true,true)); - std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end()); - for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) { - if ((e->target == target)&&(e->via.ipsEqual(via))) { - 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(); -} - -#endif // __LINUX__ - -// --------------------------------------------------------------------------- - -#ifdef __BSD__ - -std::vector<RoutingTable::Entry> RoutingTable::get(bool includeLinkLocal,bool includeLoopback) -{ - std::vector<RoutingTable::Entry> entries; - int mib[6]; - size_t needed; - - mib[0] = CTL_NET; - mib[1] = PF_ROUTE; - mib[2] = 0; - mib[3] = 0; - mib[4] = NET_RT_DUMP; - mib[5] = 0; - if (!sysctl(mib,6,NULL,&needed,NULL,0)) { - if (needed <= 0) - return entries; - - char *buf = (char *)::malloc(needed); - if (buf) { - if (!sysctl(mib,6,buf,&needed,NULL,0)) { - struct rt_msghdr *rtm; - for(char *next=buf,*end=buf+needed;next<end;) { - rtm = (struct rt_msghdr *)next; - char *saptr = (char *)(rtm + 1); - char *saend = next + rtm->rtm_msglen; - - if (((rtm->rtm_flags & RTF_LLINFO) == 0)&&((rtm->rtm_flags & RTF_HOST) == 0)&&((rtm->rtm_flags & RTF_UP) != 0)&&((rtm->rtm_flags & RTF_MULTICAST) == 0)) { - RoutingTable::Entry e; - e.deviceIndex = -9999; // unset - - int which = 0; - while (saptr < saend) { - struct sockaddr *sa = (struct sockaddr *)saptr; - unsigned int salen = sa->sa_len; - if (!salen) - break; - - // Skip missing fields in rtm_addrs bit field - while ((rtm->rtm_addrs & 1) == 0) { - rtm->rtm_addrs >>= 1; - ++which; - if (which > 6) - break; - } - if (which > 6) - break; - - rtm->rtm_addrs >>= 1; - switch(which++) { - case 0: - //printf("RTA_DST\n"); - if (sa->sa_family == AF_INET6) { - struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa; - // Nobody expects the Spanish inquisition! - if ((sin6->sin6_addr.s6_addr[0] == 0xfe)&&((sin6->sin6_addr.s6_addr[1] & 0xc0) == 0x80)) { - // Our chief weapon is... in-band signaling! - // Seriously who in the living fuck thought this was a good idea and - // then had the sadistic idea to not document it anywhere? Of course it's - // not like there is any documentation on BSD sysctls anyway. - unsigned int interfaceIndex = ((((unsigned int)sin6->sin6_addr.s6_addr[2]) << 8) & 0xff) | (((unsigned int)sin6->sin6_addr.s6_addr[3]) & 0xff); - sin6->sin6_addr.s6_addr[2] = 0; - sin6->sin6_addr.s6_addr[3] = 0; - if (!sin6->sin6_scope_id) - sin6->sin6_scope_id = interfaceIndex; - } - } - e.target = *sa; - break; - case 1: - //printf("RTA_GATEWAY\n"); - switch(sa->sa_family) { - case AF_LINK: - e.deviceIndex = (int)((const struct sockaddr_dl *)sa)->sdl_index; - break; - case AF_INET: - case AF_INET6: - e.via = *sa; - break; - } - break; - case 2: { - if (e.target.isV6()) { - salen = sizeof(struct sockaddr_in6); // Confess! - unsigned int bits = 0; - for(int i=0;i<16;++i) { - unsigned char c = (unsigned char)((const struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[i]; - if (c == 0xff) - bits += 8; - else break; - /* must they be multiples of 8? Most of the BSD source I can find says yes..? - else { - while ((c & 0x80) == 0x80) { - ++bits; - c <<= 1; - } - break; - } - */ - } - e.target.setPort(bits); - } else { - salen = sizeof(struct sockaddr_in); // Confess! - e.target.setPort((unsigned int)Utils::countBits((uint32_t)((const struct sockaddr_in *)sa)->sin_addr.s_addr)); - } - //printf("RTA_NETMASK\n"); - } break; - /* - case 3: - //printf("RTA_GENMASK\n"); - break; - case 4: - //printf("RTA_IFP\n"); - break; - case 5: - //printf("RTA_IFA\n"); - break; - case 6: - //printf("RTA_AUTHOR\n"); - break; - */ - } - - saptr += salen; - } - - e.metric = (int)rtm->rtm_rmx.rmx_hopcount; - if (e.metric < 0) - e.metric = 0; - - InetAddress::IpScope dscope = e.target.ipScope(); - if ( ((includeLinkLocal)||(dscope != InetAddress::IP_SCOPE_LINK_LOCAL)) && ((includeLoopback)||((dscope != InetAddress::IP_SCOPE_LOOPBACK) && (e.via.ipScope() != InetAddress::IP_SCOPE_LOOPBACK) ))) - entries.push_back(e); - } - - next = saend; - } - } - - ::free(buf); - } - } - - for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e1(entries.begin());e1!=entries.end();++e1) { - if ((!e1->device[0])&&(e1->deviceIndex >= 0)) - if_indextoname(e1->deviceIndex,e1->device); - } - for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e1(entries.begin());e1!=entries.end();++e1) { - if ((!e1->device[0])&&(e1->via)) { - int bestMetric = 9999999; - for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e2(entries.begin());e2!=entries.end();++e2) { - if ((e2->target.containsAddress(e1->via))&&(e2->metric <= bestMetric)) { - bestMetric = e2->metric; - Utils::scopy(e1->device,sizeof(e1->device),e2->device); - } - } - } - } - - std::sort(entries.begin(),entries.end()); - - return entries; -} - -RoutingTable::Entry RoutingTable::set(const InetAddress &target,const InetAddress &via,const char *device,int metric,bool ifscope) -{ - if ((!via)&&((!device)||(!device[0]))) - return RoutingTable::Entry(); - - std::vector<RoutingTable::Entry> rtab(get(true,true)); - - for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) { - if (e->target == target) { - if (((!device)||(!device[0]))||(!strcmp(device,e->device))) { - long p = (long)fork(); - if (p > 0) { - int exitcode = -1; - ::waitpid(p,&exitcode,0); - } else if (p == 0) { - ::close(STDOUT_FILENO); - ::close(STDERR_FILENO); - ::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"delete",(target.isV6() ? "-inet6" : "-inet"),target.toString().c_str(),(const char *)0); - ::_exit(-1); - } - } - } - } - - if (metric < 0) - return RoutingTable::Entry(); - - { - char hcstr[64]; - Utils::snprintf(hcstr,sizeof(hcstr),"%d",metric); - long p = (long)fork(); - if (p > 0) { - int exitcode = -1; - ::waitpid(p,&exitcode,0); - } else if (p == 0) { - ::close(STDOUT_FILENO); - ::close(STDERR_FILENO); - if (via) { - ::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(target.isV6() ? "-inet6" : "-inet"),target.toString().c_str(),via.toIpString().c_str(),"-hopcount",hcstr,(const char *)0); - } else if ((device)&&(device[0])) { - ::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(target.isV6() ? "-inet6" : "-inet"),target.toString().c_str(),"-interface",device,"-hopcount",hcstr,(const char *)0); - } - ::_exit(-1); - } - } - - rtab = get(true,true); - std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end()); - for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) { - if ((e->target == target)&&(e->via.ipsEqual(via))) { - 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(); -} - -#endif // __BSD__ - -// --------------------------------------------------------------------------- - -#ifdef __WINDOWS__ - -static void _copyInetAddressToSockaddrInet(const InetAddress &a,SOCKADDR_INET &sinet) -{ - memset(&sinet,0,sizeof(sinet)); - if (a.isV4()) { - sinet.Ipv4.sin_addr.S_un.S_addr = *((const uint32_t *)a.rawIpData()); - sinet.Ipv4.sin_family = AF_INET; - sinet.Ipv4.sin_port = htons(a.port()); - } else if (a.isV6()) { - memcpy(sinet.Ipv6.sin6_addr.u.Byte,a.rawIpData(),16); - sinet.Ipv6.sin6_family = AF_INET6; - sinet.Ipv6.sin6_port = htons(a.port()); - } -} - -std::vector<RoutingTable::Entry> RoutingTable::get(bool includeLinkLocal,bool includeLoopback) const -{ - std::vector<RoutingTable::Entry> entries; - PMIB_IPFORWARD_TABLE2 rtbl = NULL; - - if (GetIpForwardTable2(AF_UNSPEC,&rtbl) != NO_ERROR) - return entries; - if (!rtbl) - return entries; - - for(ULONG r=0;r<rtbl->NumEntries;++r) { - RoutingTable::Entry e; - switch(rtbl->Table[r].DestinationPrefix.Prefix.si_family) { - case AF_INET: - e.target.set(&(rtbl->Table[r].DestinationPrefix.Prefix.Ipv4.sin_addr.S_un.S_addr),4,rtbl->Table[r].DestinationPrefix.PrefixLength); - break; - case AF_INET6: - e.target.set(rtbl->Table[r].DestinationPrefix.Prefix.Ipv6.sin6_addr.u.Byte,16,rtbl->Table[r].DestinationPrefix.PrefixLength); - break; - } - switch(rtbl->Table[r].NextHop.si_family) { - case AF_INET: - e.via.set(&(rtbl->Table[r].NextHop.Ipv4.sin_addr.S_un.S_addr),4,0); - break; - case AF_INET6: - e.via.set(rtbl->Table[r].NextHop.Ipv6.sin6_addr.u.Byte,16,0); - break; - } - e.deviceIndex = (int)rtbl->Table[r].InterfaceIndex; - e.metric = (int)rtbl->Table[r].Metric; - ConvertInterfaceLuidToNameA(&(rtbl->Table[r].InterfaceLuid),e.device,sizeof(e.device)); - if ((e.target)&&((includeLinkLocal)||(!e.target.isLinkLocal()))&&((includeLoopback)||((!e.target.isLoopback())&&(!e.via.isLoopback())))) - entries.push_back(e); - } - - FreeMibTable(rtbl); - std::sort(entries.begin(),entries.end()); - return entries; -} - -RoutingTable::Entry RoutingTable::set(const InetAddress &target,const InetAddress &via,const char *device,int metric,bool ifscope) -{ - NET_LUID luid; - luid.Value = 0; - if (ConvertInterfaceNameToLuidA(device,&luid) != NO_ERROR) - return RoutingTable::Entry(); - - bool needCreate = true; - PMIB_IPFORWARD_TABLE2 rtbl = NULL; - if (GetIpForwardTable2(AF_UNSPEC,&rtbl) != NO_ERROR) - return RoutingTable::Entry(); - if (!rtbl) - return RoutingTable::Entry(); - for(ULONG r=0;r<rtbl->NumEntries;++r) { - if (rtbl->Table[r].InterfaceLuid.Value == luid.Value) { - InetAddress rdest; - switch(rtbl->Table[r].DestinationPrefix.Prefix.si_family) { - case AF_INET: - rdest.set(&(rtbl->Table[r].DestinationPrefix.Prefix.Ipv4.sin_addr.S_un.S_addr),4,rtbl->Table[r].DestinationPrefix.PrefixLength); - break; - case AF_INET6: - rdest.set(rtbl->Table[r].DestinationPrefix.Prefix.Ipv6.sin6_addr.u.Byte,16,rtbl->Table[r].DestinationPrefix.PrefixLength); - break; - } - if (rdest == target) { - if (metric >= 0) { - _copyInetAddressToSockaddrInet(via,rtbl->Table[r].NextHop); - rtbl->Table[r].Metric = metric; - SetIpForwardEntry2(&(rtbl->Table[r])); - needCreate = false; - } else { - DeleteIpForwardEntry2(&(rtbl->Table[r])); - FreeMibTable(rtbl); - return RoutingTable::Entry(); - } - } - } - } - FreeMibTable(rtbl); - - if ((metric >= 0)&&(needCreate)) { - MIB_IPFORWARD_ROW2 nr; - InitializeIpForwardEntry(&nr); - nr.InterfaceLuid.Value = luid.Value; - _copyInetAddressToSockaddrInet(target,nr.DestinationPrefix.Prefix); - nr.DestinationPrefix.PrefixLength = target.netmaskBits(); - _copyInetAddressToSockaddrInet(via,nr.NextHop); - nr.Metric = metric; - nr.Protocol = MIB_IPPROTO_NETMGMT; - DWORD result = CreateIpForwardEntry2(&nr); - if (result != NO_ERROR) - return RoutingTable::Entry(); - } - - std::vector<RoutingTable::Entry> rtab(get(true,true)); - std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end()); - for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) { - if ((e->target == target)&&(e->via.ipsEqual(via))) { - 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(); -} - -#endif // __WINDOWS__ - -// --------------------------------------------------------------------------- - -} // namespace ZeroTier diff --git a/attic/RoutingTable.hpp b/attic/RoutingTable.hpp deleted file mode 100644 index 69155c00..00000000 --- a/attic/RoutingTable.hpp +++ /dev/null @@ -1,92 +0,0 @@ -/* - * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/ - * - * 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/>. - */ - -#ifndef ZT_ROUTINGTABLE_HPP -#define ZT_ROUTINGTABLE_HPP - -#include <vector> - -#include "../node/Constants.hpp" -#include "../node/InetAddress.hpp" - -namespace ZeroTier { - -class RoutingTable -{ -public: - struct Entry - { - /** - * Destination IP and netmask bits (CIDR format) - */ - InetAddress target; - - /** - * Gateway or null address if direct link-level route, netmask/port part of InetAddress not used - */ - InetAddress via; - - /** - * Metric or hop count -- higher = lower routing priority - */ - int metric; - - /** - * Device index -- not used on all platforms - */ - int deviceIndex; - - /** - * Interface scoped route? (always false if not meaningful on this OS) - */ - bool ifscope; - - /** - * System device name (may be empty if it doesn't exist or isn't important on this OS) - */ - char device[128]; - - /** - * @return True if at least one required field is present (object is not null) - */ - inline operator bool() const { return ((destination)||(gateway)); } - }; - - /** - * Get routing table - * - * @param includeLinkLocal Include link-local IPs? - * @param includeLoopback Include loopback routes? - */ - static std::vector<RoutingTable::Entry> get(bool includeLinkLocal,bool includeLoopback); - - /** - * Add or replace a routing table entry - * - * @param destination Route destination - * @param gateway Gateway or null if local - * @param device Device name (if applicable) - * @param metric Route metric (if applicable) - * @param ifscope Interface bound route? If so, device must be set. (only applicable on some OSes) - */ - static RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric,bool ifscope); -}; - -} // namespace ZeroTier - -#endif |