diff options
Diffstat (limited to 'node/BSDRoutingTable.cpp')
| -rw-r--r-- | node/BSDRoutingTable.cpp | 106 |
1 files changed, 99 insertions, 7 deletions
diff --git a/node/BSDRoutingTable.cpp b/node/BSDRoutingTable.cpp index d6b5c488..92a87da0 100644 --- a/node/BSDRoutingTable.cpp +++ b/node/BSDRoutingTable.cpp @@ -48,6 +48,8 @@ // All I wanted was the bloody rounting table. I didn't expect the Spanish inquisition. +#define ZT_BSD_ROUTE_CMD "/sbin/route" + namespace ZeroTier { BSDRoutingTable::BSDRoutingTable() @@ -180,6 +182,8 @@ std::vector<RoutingTable::Entry> BSDRoutingTable::get(bool includeLinkLocal,bool } e.metric = (int)rtm->rtm_rmx.rmx_hopcount; + if (e.metric < 0) + e.metric = 0; if (((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback())))) entries.push_back(e); @@ -214,21 +218,109 @@ std::vector<RoutingTable::Entry> BSDRoutingTable::get(bool includeLinkLocal,bool return entries; } -bool BSDRoutingTable::set(const RoutingTable::Entry &re) +RoutingTable::Entry BSDRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric) { - return true; + if ((!gateway)&&((!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->destination == destination) { + 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",(destination.isV6() ? "-inet6" : "-inet"),destination.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 (gateway) { + ::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(destination.isV6() ? "-inet6" : "-inet"),destination.toString().c_str(),gateway.toIpString().c_str(),"-hopcount",hcstr,(const char *)0); + } else if ((device)&&(device[0])) { + ::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(destination.isV6() ? "-inet6" : "-inet"),destination.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->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) { - ZeroTier::BSDRoutingTable rt; - std::vector<ZeroTier::RoutingTable::Entry> ents(rt.get()); - for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e(ents.begin());e!=ents.end();++e) + BSDRoutingTable rt; + + printf("<destination> <gateway> <interface> <metric>\n"); + std::vector<RoutingTable::Entry> ents(rt.get()); + for(std::vector<RoutingTable::Entry>::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("<destination> <gateway> <interface> <metric>\n"); + ents = rt.get(); + for(std::vector<RoutingTable::Entry>::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("<destination> <gateway> <interface> <metric>\n"); + ents = rt.get(); + for(std::vector<RoutingTable::Entry>::iterator e(ents.begin());e!=ents.end();++e) + printf("%s\n",e->toString().c_str()); + printf("\n"); + return 0; } -//*/ +#endif |