diff options
Diffstat (limited to 'osnet/LinuxRoutingTable.cpp')
| -rw-r--r-- | osnet/LinuxRoutingTable.cpp | 90 |
1 files changed, 39 insertions, 51 deletions
diff --git a/osnet/LinuxRoutingTable.cpp b/osnet/LinuxRoutingTable.cpp index 67a5b22d..736323be 100644 --- a/osnet/LinuxRoutingTable.cpp +++ b/osnet/LinuxRoutingTable.cpp @@ -33,6 +33,7 @@ #include <sys/socket.h> #include <sys/types.h> #include <sys/stat.h> +#include <sys/wait.h> #include <fcntl.h> #include <netinet/in.h> #include <arpa/inet.h> @@ -41,8 +42,8 @@ #include <algorithm> #include <utility> -#include "../Constants.hpp" -#include "../Utils.hpp" +#include "../node/Constants.hpp" +#include "../node/Utils.hpp" #include "LinuxRoutingTable.hpp" #define ZT_LINUX_IP_COMMAND "/sbin/ip" @@ -168,24 +169,50 @@ std::vector<RoutingTable::Entry> LinuxRoutingTable::get(bool includeLinkLocal,bo RoutingTable::Entry LinuxRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric) { + char metstr[128]; + if ((!gateway)&&((!device)||(!device[0]))) return RoutingTable::Entry(); - std::vector<RoutingTable::Entry> rtab(get(true,true)); + Utils::snprintf(metstr,sizeof(metstr),"%d",metric); - 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))) { + if (metric < 0) { + long pid = (long)vfork(); + if (pid == 0) { + if (gateway) { + if ((device)&&(device[0])) { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.toString().c_str(),"via",gateway.toIpString().c_str(),"dev",device,(const char *)0); + } else { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.toString().c_str(),"via",gateway.toIpString().c_str(),(const char *)0); + } + } else { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.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 (gateway) { + if ((device)&&(device[0])) { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"via",gateway.toIpString().c_str(),"dev",device,(const char *)0); + } else { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"via",gateway.toIpString().c_str(),(const char *)0); + } + } else { + ::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"dev",device,(const char *)0); + } + ::_exit(-1); + } else if (pid > 0) { + int exitcode = -1; + ::waitpid(pid,&exitcode,0); } } - if (metric < 0) - return RoutingTable::Entry(); - - - - rtab = get(true,true); + 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->destination == destination)&&(e->gateway.ipsEqual(gateway))) { @@ -206,42 +233,3 @@ RoutingTable::Entry LinuxRoutingTable::set(const InetAddress &destination,const } } // namespace ZeroTier - -// Enable and build to test routing table interface -//#if 0 -using namespace ZeroTier; -int main(int argc,char **argv) -{ - LinuxRoutingTable 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 |