diff options
| -rw-r--r-- | src/libcharon/plugins/kernel_iph/kernel_iph_net.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/libcharon/plugins/kernel_iph/kernel_iph_net.c b/src/libcharon/plugins/kernel_iph/kernel_iph_net.c index 56c458fdb..36e3c4c56 100644 --- a/src/libcharon/plugins/kernel_iph/kernel_iph_net.c +++ b/src/libcharon/plugins/kernel_iph/kernel_iph_net.c @@ -497,6 +497,38 @@ METHOD(kernel_net_t, get_source_addr, host_t*, METHOD(kernel_net_t, get_nexthop, host_t*, private_kernel_iph_net_t *this, host_t *dest, host_t *src) { + MIB_IPFORWARD_ROW2 route; + SOCKADDR_INET best, *sai_dst, *sai_src = NULL; + DWORD res, index = 0; + host_t *nexthop; + + res = GetBestInterfaceEx(dest->get_sockaddr(dest), &index); + if (res != NO_ERROR) + { + DBG1(DBG_KNL, "getting interface to %H failed: 0x%08x", dest, res); + return NULL; + } + + sai_dst = (SOCKADDR_INET*)dest->get_sockaddr(dest); + if (src) + { + sai_src = (SOCKADDR_INET*)src->get_sockaddr(src); + } + res = GetBestRoute2(0, index, sai_src, sai_dst, 0, &route, &best); + if (res != NO_ERROR) + { + DBG2(DBG_KNL, "getting nexthop to %H failed: 0x%08x", dest, res); + return NULL; + } + nexthop = host_create_from_sockaddr((struct sockaddr*)&route.NextHop); + if (nexthop) + { + if (!nexthop->is_anyaddr(nexthop)) + { + return nexthop; + } + nexthop->destroy(nexthop); + } return NULL; } |